KR102287861B1 - Multi wrench head for smart stick - Google Patents

Abstract

The present invention particularly relates to a wrench head mounted on the end of a smart stick for live wire work and used for installing or disassembling a bolt or nut from a distance. Rotation of the head housing 10, the socket body 21, the socket rotation shaft 22, and the socket support bearing 23, the wrench socket module 20, and the main rotation shaft 31 and the main rotation shaft 31 made of By being composed of a power transmission module 30 consisting of a gear assembly that transmits motion to the rotational motion of the socket rotation shaft 22, the installation angle of the bolt or nut may be changed while installing or disassembling the bolt or nut at a specific angle. In this case, it is possible to work by changing the installation angle of the socket wrench in place without changing the position of the worker, so the working time is greatly reduced and easier, and the risk of safety accidents that may occur in the process of changing the working position is also greatly reduced. We would like to provide wrench heads for smart sticks.

Description

Multi wrench head for smart stick

The present invention relates to a wrench head mounted on the end of a smart stick for live wire work and used for installation or dismantling of bolts or nuts from a distance.

The smart stick is an insulating material and a long rod, in which the tool for work is coupled to one end and the operator operates the tool at the other end. It is a tool that separates the distance between electrical equipment and workers so that the safety of workers can be promoted.

There is no limit to the work tools that are combined with the smart stick, and various tools such as hangers, clamps, cutters, pans, and wrenches can be combined.

However, in the case of general work other than live work, the angle at which the tool approaches the object can be freely adjusted, so it can be operated by adjusting the angle of the tool depending on the situation. There is a problem that the angle of the smart stick itself needs to be changed in order to change the .

In order to change the angle of the smart stick, the operator must first move the position. In particular, in the case of high-altitude work, a procedure is required to lower the bucket that elevates the operator and then move the vehicle to raise the operator to the bucket again. Interference with the facilities is newly generated, and there may be a situation in which it is impossible to work by changing the angle of the tool at all.

In addition, even if a coupling part that can be installed by changing the angle of the tool is provided at the end of the smart stick, the tools installed in the inside of the smart stick and the opposite end of the smart stick are manufactured for the manipulation of the tool installed at a specific angle. Even if it is installed on the smart stick by changing only the angle of

Since live wire work is performed in a situation where the power supply is maintained when maintenance of electrical equipment is required, inconvenience to the power demand side is minimized. It is always urgent to introduce technology that can be developed conveniently.

Registered Patent Publication No. 10-1963539 (Announcement Date: 2019.03.28)

Accordingly, the present invention is installed at the end of the smart stick and has a plurality of coupling structures so that a tool such as a wrench can be coupled by changing the angle, and in particular, even if the installation angle of the bolt or nut is changed, the operator does not need to move the position By changing only the assembly angle of the wrench socket, it is possible to work according to the changed installation angle of the bolt or nut, thereby providing a multi-wrench head for smart sticks that can significantly shorten the process time.

A wrench head for a smart stick according to the present invention for achieving this object is made of an insulating material and a head body housing 11 which is a case-shaped member fixedly coupled to the end of the smart stick, which is a long rod-shaped member, and; The head housing 10 is a tubular member whose length is formed in the same direction as the longitudinal direction of the smart stick, and the head housing 10 is composed of a stick coupling housing 12 that fixedly connects the head body housing 11 to the end of the smart stick, and a bolt or A socket body 21 having a socket hole 211 into which the nut head is inserted is formed on the end surface, and one end is coupled to the opposite end surface of the socket hole 211 in the socket body 21 and is inserted into the body housing 11 . A wrench socket module 20 comprising a socket rotation shaft 22 having the other end installed therein, and a socket support bearing 23 installed inside the body housing 11 to rotatably support the socket rotation shaft 22, and the smart stick One end is inserted into the end and the other end is installed to be inserted into the stick coupling housing 12, the main rotating shaft 31, and a gear assembly that transmits the rotational motion of the main rotational shaft 31 to the rotational motion of the socket rotational shaft 22. It is composed of a power transmission module 30, wherein at least two mounting holes for mounting the socket module are formed in the head body housing 11, and the direction in which the socket module is mounted in each mounting hole forms a constant angle with each other. do.

Here, the mounting hole is preferably a coaxial mounting hole in which the socket rotating shaft 22 is rotated in a coaxial direction with the main rotating shaft 31 , and a vertical axis in which the socket rotating shaft 22 is rotated in a direction perpendicular to the main rotating shaft 31 . Consisting of a mounting hole, the gear assembly includes a coaxial bevel gear 32 coupled with the main rotating shaft 31 and rotating together integrally, and a coaxial bevel gear 32 engaged at right angles to the main rotating shaft 31 at a right angle. By being made of a vertical shaft bevel gear 33 that rotates in the rotational direction of the axis, the socket rotation shaft 22 is coupled to the coaxial bevel gear 32 or the vertical shaft bevel gear 33 to rotate in the coaxial direction with respect to the main rotation shaft 31 or rotated in the direction of vertical axis rotation.

In this case, a socket coupling pin block 221 having a polygonal cross section is preferably formed at one end of the socket rotating shaft 22, and a gear coupling pin block having a polygonal cross section is formed at the other end of the socket rotating shaft 22 ( 222) is formed, a hole having a shape corresponding to the cross section of the socket coupling pin block 221 is formed on the opposite end surface of the socket hole 211 in the socket body 21, and the coaxial bevel gear 32 and the vertical axis The bevel gear 33 is formed with a hole corresponding to the shape of the gear coupling pin block 222 in the center.

At this time, the coaxial mounting hole and the vertical axis mounting hole are preferably formed to pass through the head body housing 11, and the stick coupling housing 12 is coupled to the lower portion of the coaxial mounting hole, and the stick coupling housing 12 has A hollow passing through the stick coupling housing 12 is formed so that the main rotation shaft 31 is installed therein, so that the hollow of the stick coupling housing 12 and the coaxial mounting hole communicate with each other in parallel, and the upper part of the hollow is coaxial A support bearing 34 is installed to support the coaxial bevel gear 32 so that it can rotate freely, and in the hollow, adjacent to the coaxial support bearing 34 is a first groove 121 of a certain thickness on the inner surface of the hollow circumference. It is formed along the direction and is a circular ring having a larger diameter than the diameter of the first groove 121 in the first groove 121 , and an opening is formed by a predetermined angle, and the opening is narrowed and compressed in the first groove 121 . An expansion ring 322 installed in a fitting manner is provided to prevent the coaxial support bearing 34 from falling.

In addition, the vertical shaft bevel gear 33 is preferably installed on the opposite side of the socket body 21 inside the vertical shaft mounting hole, and between the outer peripheral surface of the vertical shaft bevel gear 33 and the inner surface of the vertical shaft mounting hole, the vertical shaft can rotate freely A vertical shaft support bearing 35 is installed to support ), a second groove 333 having a constant thickness in the circumferential direction is formed in a portion adjacent to the vertical shaft support bearing 35 among the outer circumferential surfaces of the outer circumferential surface, and the second groove 333 has a smaller inner diameter than the inner diameter of the second groove 333 . As a circular ring having a diameter, a cut portion is formed and a shrink ring 332 fitted into the second groove 333 is provided in the form of expanding the cut portion, and the shrink ring 332 is a vertical axis bevel gear 33 is a socket. It prevents the body 21 from being changed while sliding into the interior.

Since the wrench head for a smart stick according to the present invention has a plurality of coupling structures so that a tool such as a wrench can be coupled by changing an angle, the bolt or nut is installed while the bolt or nut is installed or dismantled at a specific angle. When the angle is changed, it is possible to work by changing only the installation angle of the socket wrench in place without changing the position of the operator, so the working time is greatly reduced and easier The risk is also greatly reduced.

1A and 1B are perspective views of two assembly states of a wrench head according to the present invention;
2a and 2b are top and bottom exploded perspective views of a wrench head according to the present invention;
3A and 3B are front cross-sectional views corresponding to FIGS. 1A and 1B;
Fig. 4a is a rear view of Fig. 1a;
Fig. 4b is a plan view of Fig. 1a;
Fig. 4c is a bottom view of Fig. 1b;

Specific structural or functional descriptions presented in the embodiments of the present invention are only exemplified for the purpose of describing embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be implemented in various forms. In addition, it should not be construed as being limited to the embodiments described herein, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1 , the multi-wrench head for a smart stick according to the present invention includes a head housing 10 , a socket module, and a power transmission module 30 .

1, the head housing 10 is made of an insulating material and is a long rod-shaped member, the head body housing 11, which is a case-shaped member fixedly coupled to the end of the smart stick (not shown); A tubular member whose length is formed in the same direction as the longitudinal direction of the smart stick (not shown) is composed of a stick coupling housing 12 that securely connects the head body housing 11 to the end of the smart stick (not shown).

In particular, two or more mounting holes for mounting the wrench socket module 20 are formed in the head body housing 11 , and the directions in which the wrench socket module 20 is mounted are formed at a constant angle to each other. For this, the wrench socket module 20 and the power transmission module 30 will be described and then will be described later.

The wrench socket module 20 has a socket body 21 having a socket hole 211 into which a bolt or nut head is inserted, and one end is coupled to the opposite end surface of the socket hole 211 in the socket body 21 . and a socket rotation shaft 22 having the other end installed inside the body housing 11 and a socket support bearing 23 installed inside the body housing 11 to rotatably support the socket rotation shaft 22 .

Here, the socket body 21 is in direct contact with the bolt or nut, and the bolt or nut is installed or loosened by rotating it by gripping the bolt or nut.

The power transmission module 30 has one end inserted into the end of the smart stick (not shown) and the other end is installed to be inserted into the stick coupling housing 12, and the rotational motion of the main rotation shaft 31 is a socket rotation shaft. It consists of a gear assembly that transmits the rotational motion of 22.

The multi-wrench head according to the present invention is installed at the end of the smart stick (not shown). And finally, the socket body 21 for rotating the bolt or nut receives rotational motion from a manual or automatic driving module (not shown) installed at the opposite end of the smart stick (not shown).

Therefore, although not shown inside the smart stick (not shown), a rotation shaft through which a rotational motion is transmitted from a rotational driving member such as a motor or a manual operation by an operator may be built-in.

In this case, the member receiving the first rotational motion in the present invention is the main rotation shaft 31 . The main rotation shaft 31 is formed to be long unlike that shown in FIG. 1A and may be embedded in a smart stick (not shown), or is coupled to the upper end of a separate rotation shaft (not shown) built into the smart stick (not shown). Rotational motion may be transmitted.

Here, the mounting hole is a coaxial mounting hole in which the socket rotating shaft 22 is rotated in the coaxial direction with the main rotating shaft 31, and the socket rotating shaft 22 is perpendicular to the main rotating shaft 31 as shown in FIG. 2A. It consists of a rotating vertical shaft mounting hole. That is, the coaxial mounting hole and the vertical shaft mounting hole are respectively formed, and the mounting direction is perpendicular to each other.

In this case, the gear assembly includes a coaxial bevel gear 32 coupled with the main rotating shaft 31 and rotating together integrally, and a coaxial bevel gear 32 engaged at right angles to the main rotating shaft 31 at a right angle to the rotation direction of the shaft. It consists of a vertical axis bevel gear (33) rotated to.

And the socket rotation shaft 22 is rotated in the coaxial direction with respect to the main rotation shaft 31 by being coupled to the coaxial bevel gear 32 or the vertical shaft bevel gear 33, or is rotated in the vertical shaft rotation direction.

In particular, as shown in FIG. 2A , a socket coupling pin block 221 having a polygonal cross section is formed at one end of the socket rotating shaft 22 , and a gear coupling pin having a polygonal cross section is formed at the other end of the socket rotating shaft 22 . A block 222 is formed, and a hole having a shape corresponding to the cross-section of the socket coupling pin block 221 is formed on the opposite end surface of the socket hole 211 in the socket body 21, and the coaxial bevel gear 32 And the vertical shaft bevel gear 33 is formed with a hole corresponding to the shape of the gear coupling pin block 222 in the center of both.

Therefore, the socket rotation shaft 22 can be coupled to either the coaxial bevel gear 32 or the vertical shaft bevel gear 33, and the coaxial bevel gear 32 and the vertical shaft bevel gear 33 are both the main rotation shaft 31 rotates. Since the socket module is rotated together as a result, the socket module is configured to be able to rotate the socket body 21 even if it is coupled to either the coaxial mounting hole or the vertical shaft mounting hole.

Accordingly, even if there are two or more angles of installation or disassembly of a bolt or nut to be installed or dismantled and there is a difference of more than 90 degrees from each other, after work at any one point, the operator must descend to the ground and move the aerial vehicle to the bucket again. There is no need for time and process delays.

On the other hand, both the coaxial bevel gear 32 and the vertical axis bevel gear 33 are installed so that they can be assembled, but also the assembled state must be stably maintained.

When the socket module is installed in the vertical shaft mounting hole, as shown in Fig. 3a, the front end of the socket rotation shaft 22 is supported by the socket support bearing 23, and the rear end is the vertical shaft bevel gear 33 and the vertical shaft bevel gear. It is supported by a vertical shaft support bearing (35) coupled to the outer peripheral surface of (33).

However, referring to FIG. 3A , the vertical shaft support bearing 35 falls out of the head body housing 11 or falls into the head body housing 11 due to the step formed in the housing and the step formed in the vertical shaft bevel gear 33. Although the phenomenon is prevented, there is a risk that the vertical axis bevel gear 33 slides into the head body housing 11 and falls out.

In order to prevent this phenomenon, a second groove 333 having a constant thickness in the circumferential direction is formed in a portion adjacent to the vertical shaft support bearing 35 among the outer peripheral surface of the vertical shaft bevel gear 33, and the second groove 333 has a second groove. 2 As a circular ring having a smaller diameter than the inner diameter of the groove 333, a cut portion is formed and a shrink ring 332 fitted into the second groove 333 in the form of expanding the cut portion is provided, the shrink ring ( 332 ) prevents the vertical axis bevel gear 33 from being changed while sliding into the inside of the socket body 21 .

In addition, in the case of the coaxial bevel gear 32, referring to FIGS. 3A and 3B , the main rotating shaft 31 and the coaxial bevel gear 32 have a coupling pin hole formed in the flange 311 provided at the upper end of the main rotating shaft 31 . The coupling pin 36 is simultaneously penetrated and coupled to the second coupling pin hole 312 formed in the 312 and the coaxial bevel gear 32, and the coaxial support bearing is coupled to the outer circumferential surface of the coaxial bevel gear 32, the main The rotating shaft 31, the coaxial bevel gear 32, and the coaxial support bearing 34 are all integrally coupled. However, as shown in FIG. 3A , no jaws or steps are formed on the inner surface of the stick coupling housing 12 to directly prevent the coaxial bevel gear 32 or the coaxial support bearing 34 from falling.

Referring to FIGS. 3A and 2B , a second groove 333 having a constant thickness in the circumferential direction is formed in a portion adjacent to the vertical shaft support bearing 35 among the outer peripheral surfaces of the vertical shaft bevel gear 33 to solve this problem. The second groove 333 is a circular ring having a smaller diameter than the inner diameter of the second groove 333, a cut-off portion is formed, and a contracting ring 332 fitted into the second groove 333 in the form of expanding the cut-off portion. ) is provided, and the shrink ring 332 prevents the vertical axis bevel gear 33 from being changed while sliding into the socket body 21 .

That is, if the ring member with the opening is forcibly expanded and fastened in the case of the vertical shaft support bearing 35 to become the shrinking ring 332 to which a contracting force is applied, in the case of the coaxial support bearing 34, the ring member is forcibly contracted to engage the stick. By coupling to the second groove formed on the inner surface of the housing 12 and using the expansion force, the expansion ring 322 serves as a kind of drop prevention shelf.

By providing the shrink ring 332 and the expansion ring 322 in this way, the wrench socket module 20 and the power transmission module 30 are firmly and stably assembled inside the head housing 10, so that the wrench according to the present invention during operation. In addition to preventing the head from being damaged, it has a structure that can be easily disassembled and reassembled when changing the mounting angle of the wrench socket module 20 .

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

10: head housing 11: head body housing
12: stick coupling housing 20: wrench socket module
21: socket body 22: socket rotation shaft
23: socket support bearing 30: power transmission module
31: main rotation shaft 32: coaxial bevel gear
33: vertical shaft bevel gear 34: coaxial support bearing
35: vertical shaft support bearing 36: coupling pin
111: coaxial mounting hole 112: vertical shaft mounting hole
121: first groove 211: socket hole
221: socket engagement pin block 222: gear engagement pin block
241: first departure prevention pin 242: second departure prevention pin
243: third separation prevention pin 311: flange
312: coupling pin hole 321: coaxial pin block coupling hole
322: expansion ring 323: second coupling pin hole
331: vertical axis pin block coupling hole 332: shrink ring
333: second groove

Claims (5)

The head body housing 11, which is a case-shaped member that is fixedly coupled to the end of the smart stick, which is a long rod-shaped member made of an insulating material, and a tubular member whose length is formed in the same direction as the longitudinal direction of the smart stick. a head housing 10 comprising a stick coupling housing 12 that fixedly connects the head body housing 11 to the end of the smart stick;
A socket body 21 having a socket hole 211 into which a bolt or nut head is inserted is formed on an end surface, and one end is coupled to an opposite end surface of the socket hole 211 in the socket body 21, and the main body housing 11 a wrench socket module 20 including a socket rotation shaft 22 having the other end installed therein, and a socket support bearing 23 installed inside the body housing 11 to rotatably support the socket rotation shaft 22; and,
One end is inserted into the end of the smart stick and the other end is installed to be inserted into the stick coupling housing 12 , and a gear that transmits the rotational motion of the main rotational shaft 31 to the rotational movement of the socket rotational shaft 22 . Power transmission module 30 made of an assembly;
Two or more mounting holes for mounting the wrench socket module 20 are formed in the head body housing 11, and directions in which the wrench socket module 20 is mounted in each mounting hole form a constant angle with each other,
The mounting hole consists of a coaxial mounting hole in which the socket rotating shaft 22 is rotated in a coaxial direction with the main rotating shaft 31, and a vertical shaft mounting hole in which the socket rotating shaft 22 is rotated in a direction perpendicular to the main rotating shaft 31, ,
The gear assembly includes a coaxial bevel gear 32 coupled with the main rotating shaft 31 and rotating together integrally, and a coaxial bevel gear 32 engaged at right angles to the main rotating shaft 31 in the direction of rotation of the axis forming a right angle to the main rotating shaft 31. Consists of a rotating vertical axis bevel gear (33),
The socket rotation shaft 22 is rotated in the coaxial direction with respect to the main rotation shaft 31 by being coupled to the coaxial bevel gear 32 or the vertical shaft bevel gear 33, or is rotated in the vertical axis rotation direction,
A socket coupling pin block 221 having a polygonal cross-section is formed at one end of the socket rotating shaft 22, and a gear coupling pin block 222 having a polygonal cross-section is formed at the other end of the socket rotating shaft 22, ,
In the socket body 21, a hole having a shape corresponding to the cross-section of the socket coupling pin block 221 is formed on the opposite end surface of the socket hole 211, and the coaxial bevel gear 32 and the vertical axis bevel gear 33 are A multi-wrench head for a smart stick, characterized in that a hole corresponding to the shape of the gear coupling pin block 222 is formed in the center. delete delete According to claim 1,
The coaxial mounting hole and the vertical axis mounting hole are formed in a form penetrating through the head body housing 11,
The stick coupling housing 12 is coupled to the lower portion of the coaxial mounting hole, and a hollow penetrating the stick coupling housing 12 is formed in the stick coupling housing 12 so that the main rotation shaft 31 is installed therein, the stick coupling housing The hollow of (12) and the coaxial mounting hole communicate in parallel with each other,
A coaxial support bearing 34 is installed in the upper part of the hollow to support the coaxial bevel gear 32 so as to be able to rotate freely,
In the hollow, a first groove 121 of a certain thickness is formed on the inner surface of the hollow in the lower portion adjacent to the coaxial support bearing 34 in the circumferential direction, and the diameter of the first groove 121 is greater than the diameter of the first groove 121 in the first groove 121. As a circular ring having a larger diameter, an opening is formed by a certain angle, the opening is narrowed and compressed, and an expansion ring 322 installed to be fitted into the first groove 121 is provided, and the coaxial support bearing 34 is dropped. Multi-wrench head for smart stick, characterized in that it prevents. 5. The method of claim 4,
The vertical axis bevel gear 33 is installed on the opposite side of the socket body 21 inside the vertical axis mounting hole,
Between the outer circumferential surface of the vertical shaft bevel gear 33 and the inner surface of the vertical shaft mounting hole, a vertical shaft support bearing 35 for freely supporting the vertical shaft is installed,
The vertical shaft support bearing 35 is installed between the step formed on the outer circumferential surface of the vertical shaft bevel gear 33 and the departure prevention pin, and the position is fixed,
A second groove 333 having a constant thickness in the circumferential direction is formed in a portion adjacent to the vertical shaft support bearing 35 among the outer peripheral surfaces of the vertical shaft bevel gear 33 , and the second groove 333 is formed in the second groove 333 . As a circular ring having a smaller diameter than the inner diameter, a cut portion is formed and a shrink ring 332 fitted into the second groove 333 in a form to expand the cut portion is provided, and the shrink ring 332 is a vertical axis bevel gear Multi-wrench head for smart stick, characterized in that it prevents the (33) from being changed while sliding into the inside of the socket body (21).

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