KR102506253B1 - Clamp head for smart stick and the smart stick equipped with it - Google Patents

Abstract

The present invention includes a fixed holder part, a movable part, a gap maintaining spring installed between the fixed holder part and the movable part, and a stick coupling end fixed to the holder part and having a form that can be assembled to the end of the smart stick, By forming a hook for traction at a predetermined portion of the movable part, any object can be gripped regardless of the shape of the target object, and an action of gripping or releasing the gripping of the object is directly transmitted, thereby gripping or moving the target object. The process is made much easier, and the gripping force of the object does not depend on the elastic force of the spring, so the possibility of accidents on the site can be greatly reduced by gripping the object much more firmly, and it is manufactured with a simple structure and supplied to workers at a lower cost. It is intended to provide a clamp head that can be used and a smart stick with the clamp head installed.

Description

Clamp head for smart stick and the smart stick equipped with it}

The present invention relates to a clamp head for a smart stick and a smart stick equipped with a clamp head, and more particularly, to a clamp head for a smart stick and a smart stick equipped with a clamp head having a structure capable of both gripping in the form of a clamp and fastening in the form of a hook. it's about

Since there is always a risk of electric shock when working with live wires, smart sticks are used for the safety of workers. A working tool is installed at the end of the smart stick, and a power transmission mechanism for manipulating the working tool is built inside so that the operator can control the working tool by manipulating it from the opposite end of the smart stick.

The types of tools installed at the end of the smart stick correspond to most of the tools used for live wire work. Therefore, various tools such as cutting, removing, gripping, and other power transmission cable sheathing can be installed.

The tools most often used in live wire work are tongs or clamps. This is because, except for special operations such as cutting and taping, most of the operations are operations such as pressing, moving, lifting, and placing.

However, in the case of the prior art, in the case of the gripping operation, the target object can be gripped, but there is no configuration for maintaining the gripping state without external force, or even if there is, it is very expensive due to a very complex mechanism.

Alternatively, in the prior art, as in the prior art shown in FIG. 1, the tip 188 is made in the form of a hook, rotates to hold the target object as if hanging on a hook, or hangs the tip 188 on a cable. Possible smart sticks have been developed.

However, it is difficult to grip an object of the same shape as the prior art 1 and a shape that is difficult to be contained in the ring, and it is difficult to grip the smart stick firmly and integrally, so it is difficult to freely control the gripped object, and the hook-shaped tip (188) In order to operate, the rotational force from the handle of the smart stick is transmitted through several steps, making it difficult to control the object immediately, and the structure becomes more complicated, which also increases the manufacturing cost.

In addition, in the prior art 1, since the built-in spring exerts an elastic force in the form of pulling the tip 188 toward the holder 168, the force to grip the object cannot be greater than the elastic force of the spring, making it much more robust than the elastic force of the spring. There is a problem in which it is impossible to grip an object.

Registered Patent Publication No. 10-2028010 (Public date: 2019. 10. 04)

Therefore, according to the present invention, any object can be gripped regardless of the shape of the target object, and the action of gripping or canceling the gripping of the object is directly transmitted, making the process of gripping or moving the target object much easier. The gripping force of the object does not depend on the elastic force of the spring, so the possibility of an accident in the field can be greatly reduced by gripping the target object much more firmly, and the clamp head and clamp head manufactured in a simple structure can be supplied to workers at a lower cost. We want to provide a smart stick with installed.

The clamp head according to the present invention for achieving this object is installed between a fixed holder part fixed to the end of a smart stick for live work, a movable part variably coupled to the fixed holder part, and between the fixed holder part and the movable part It includes a spring that maintains a constant distance between the movable part and the fixed holder part by applying elastic force to the movable part, and a stick coupling end fixed to the holder part and having a form that can be assembled to the end of the smart stick. Since the traction ring is formed, all objects of a size that can be inserted between the fixed holder portion and the movable portion can be gripped while pulling the movable portion in the compression direction of the spring with a member fastened to the traction ring.

Here, the front end of the movable part is preferably provided with a tip hook, which is a member formed in a form extending in a direction away from the fixed holder part and then bent, and extending in a horizontal direction from the end surface of the fixed holder part from the bent point, so that the movable part is provided with a fixed holder. As the part advances or retreats toward the end face, it is possible to grip or release an object interposed between the tip hook and the end face.

In this case, the movable part is composed of a tip hook and a movable body, a hollow is formed inside the fixed holder part so that the movable body can be changed along the longitudinal direction of the fixed holder part, and the traction ring is formed in the body of the fixed holder part. A long hole for passing through the traction ring is formed so as to be integrally variable with the movable body while being exposed to the outside of the fixed holder part.

At this time, preferably, an inlet groove through which the movable body can pass is formed in communication with the hollow on the end surface of the fixed holder part, and a second inlet groove in the form of crossing the inlet groove is further formed, so that the tip hook is the inlet groove or the second inlet groove. 2 By inserting a part of the target object into the lure groove, the risk of falling of the object gripped between the tip hook and the end surface is prevented.

On the other hand, the smart stick according to the present invention is made of an insulating material long, the stick coupling end is assembled at the end, the smart stick having a handle provided on the opposite side in the longitudinal direction of the stick coupling end, and the stick coupling end assembled to the stick coupling end A clamp head, one end of which is coupled to the traction ring, and the other end is variably coupled to the smart stick and is variable along the longitudinal direction of the smart stick to pull the movable part to approach the end surface of the fixed holder part. A drive stick and , It consists of a drive control module that fixes the drive stick in a state where the drive stick pulls the movable part.

Here, the drive stick is preferably connected to the traction ring with a first joint, and connected to the smart stick with a second joint, wherein the second joint is a joint composed of a hinge axis, and the second joint is connected to the other end of the drive stick. Drive control module can be directly connected.

In this case, the drive control module preferably includes a drive handle, a ratchet gear coupled to the drive handle and rotated according to the variableness of the drive handle, a pawl for fixing or releasing the rotation state of the ratchet gear, and a ratchet gear. It consists of a module case in which a pole and a pole are built in, and the second joint can directly connect the drive handle and the other end of the drive stick.

At this time, the drive control module preferably further includes a return spring for returning the ratchet gear to rotate at an original angle when the pawl is separated from the ratchet gear, and an elastic spring for applying an elastic force in a direction in which the pawl is brought into close contact with the ratchet gear. there is.

The smart stick according to the present invention can grip any object regardless of the shape of the target object, and the action of gripping or canceling the gripping of the object is directly transmitted, making the process of gripping or moving the target object much easier. Since the gripping force of the object does not depend on the elastic force of the spring, the possibility of accidents in the field can be greatly reduced by gripping the target object much more firmly, and the effect of being manufactured in a simple structure and cheaper can be supplied to workers. there is.

1 is a partially exploded perspective view of a clamp head according to the prior art;
2 is a perspective view of a clamp head according to the present invention;
Figure 3 is an internal perspective view of Figure 2;
4a and 4b are front cross-sectional views of FIG. 2;
5 is a front view of a smart stick according to the present invention;
Figure 6 is a partially enlarged cross-sectional view of Figure 5;
Figure 7 is a top cross-sectional view of Figure 6;
Figure 8 is a perspective view of Figure 6;

Specific structural or functional descriptions presented in the embodiments of the present invention are merely exemplified for the purpose of explaining embodiments according to the concept of the present invention, and 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 in this specification, and should be understood to include all modifications, equivalents, or 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.

First, the clamp head 10 according to the present invention will be described, and then the smart stick 20 to which the clamp head 10 is applied will be described in turn.

The clamp head 10 according to the present invention is composed of a fixed holder part 11, a movable part 12, a gap maintaining spring 14, and a stick coupling end 15, as shown in FIGS. 2 and 4A. do.

The fixed holder portion 11 and the stick coupling end 15 are fixedly coupled to each other, and since the stick coupling end 15 is firmly assembled to the smart stick 20, the fixed holder portion 11 is also connected to the stick coupling end 15. Due to this, it is fixed to the smart stick 20.

The movable part 12 is variably installed in a forward or backward direction toward the fixed holder part 11, so that the movable part 12 is the fixed holder part against an object placed between the movable part and the end surface of the fixed holder part 11. While approaching the end face of (11), it grips the object firmly.

The fixed holder portion 11 shown in FIG. 2 has a shape similar to that of the conventional holder 168 of FIG. 1 , but the fixed holder portion 11 according to the present invention is not necessarily limited to the shape of FIG. 2 . However, when the movable part 12 and the fixed holder part 11 are coupled together to perform a gripping action, the movable part 12 forms a groove formed in the fixed holder part 11 so that work can be performed smoothly even between complex facilities and cables. By being variably coupled according to the combination of the movable part 12 and the fixed holder part 11, the occupied space is minimized, and interference with surrounding facilities can be minimized.

As shown in FIG. 3 , the spacing maintaining spring 14 is installed such that an elastic force is exerted in a direction extending a distance between the fixed holder part 11 and the movable part 12 . More precisely, the gap maintaining spring 14 is installed between the stick coupling end 15 and the movable part 12, and since the stick coupling end 15 is firmly coupled to the fixed holder portion, the fixed holder portion 11 and the movable portion ( 12), the gap maintaining spring 14 expands the gap between them.

In this way, when the distance maintenance spring 14 is installed in the direction in which the fixed holder part 11 and the movable part 12 extend to each other, the smart stick 20 pulls the movable part 12 in the direction of the fixed holder part 11 If a mechanism for fixing the movable part 12 and a stopper mechanism for fixing the position of the movable part after being pulled in the direction of the fixed holder part 11 are installed, the movable part 12 and the fixed holder part 11 firmly grip the target object Even in one state, it is possible to maintain the gripping state without the operator continuously applying force for gripping. A detailed description of this will be described in detail in relation to a smart stick to be described later.

In the present invention, in order that the movable part 12 can perform a much wider gripping operation than the conventional clamp head, firstly, the front end of the movable part 12 is installed so as to linearly move with respect to the fixed holder part 11, and secondly The entire front end of the movable part 12 does not approach the fixed holder part 11 first, so that the shape of the tip of the movable part 12 can be gripped without limiting the shape of the target object. ) is formed to be close to

That is, more specifically for this purpose, as shown in FIG. 3, the movable part 12 extends in the direction away from the fixed holder part 11 at the front end of the movable part 12 and then bends, and the fixed holder part 11 from the bent point. The end hook 122, which is a member formed in a shape extending in the horizontal direction with the end surface of the , is provided, and as the movable part 12 advances or retreats toward the end surface of the fixed holder part 11, the end hook 122 It is possible to grip or release an object interposed between the end face and the end face.

In this way, the front end of the movable part 12 is generally level with the end surface of the fixed holder part 11, and the gripping force is evenly adhered regardless of the shape of the object interposed between the front end of the movable part 12 and the fixed holder part 11. this can be exerted.

The movable part 12 also has a traction hook 123 coupled to the movable body 121 or integrally formed with the movable body 121, as shown in FIGS. 4A and 4B, so that the movable part 12 is a smart stick. It is possible to be pulled directly to the mechanism installed on the opposite side of (20), so that a power transmission mechanism having a complicated structure inside the smart stick 20 does not need to be installed.

Since the tow ring 123 is integrally variable with the movable part 12, the fixed holder part 11 has a long hole 117 through which the tow ring 123 can pass, as shown in FIG. formed together A mechanism that is attached to the traction ring 123 and changes the movable part 12 will be described in detail in the smart stick 20 to be described later.

The movable part 12 is also installed parallel to the end surface of the fixed holder part 11, while the tip shape is installed parallel to the end surface of the fixed holder part 11, as shown in FIG. 2, the movable body 121 can pass through. The first guiding groove 112 is formed to communicate with the hollow, and the second guiding groove 113 in the form of crossing the first guiding groove 112 is further formed, so that the tip hook 122 is formed in the first guiding groove. 112 or the second lure groove 113 by inserting a part of the target object can be more reliably prevented from falling the object gripped between the tip hook 122 and the end surface.

Therefore, in the case of an object to be gripped with a curved or curved surface formed on the surface, a part or all of the protruding part due to the curved surface is inserted into the first guiding groove 112 or the second guiding groove 113 formed in the fixed holder part, The gripping stability of an object gripped between 12 and the fixed holder portion 11 is remarkably increased.

Hereinafter, the clamp head 10 according to the present invention will be described with reference to FIGS. 5 to 8 for the smart stick 20 installed at one end.

As shown in FIG. 5 , the smart stick according to the present invention is configured by installing the clamp head 10 , the driving stick 30 , and the driving control module 40 to the smart stick 20 .

The smart stick 20 is a rod member made of an insulating material and formed long. At one end, the clamp head 10 according to the present invention described above is installed, and at the other end, a handle 22 that a worker can grip by hand is provided. . At this time, the clamp head 10 is coupled to the clamp head 10 and the smart stick 20 by firmly assembling the stick coupling end 15 coupled to the fixed holder portion 11 to one end of the smart stick 20. .

The clamp head 10 refers to the clamp head 10 according to the present invention described above.

As shown in FIG. 5, the driving stick 30 has one end coupled to the clamp head 10 and the other end coupled to the adjacent portion of the handle 22, and is varied along the length direction of the smart stick 20, thereby moving the moving part. (12) is drawn to approach the end face of the fixed holder portion (11).

The part where the driving stick 30 is coupled to the clamp head 10 side is hereinafter referred to as a 'first joint 32', and the driving stick 30 is coupled to the handle 22 adjacent part of the smart stick 20 The site will be referred to as 'the second joint 33'.

The first joint 32 may be a ring-shaped member fastened to the traction ring 123 or a hinge member. The first joint 32 may be a ring or a hinge in the prior art as long as the angle between the drive stick 30 and the clamp head 10 is variable.

A description of the second joint 33 will be given after the description of the drive control module 40 first.

As shown in FIGS. 5 and 6 , the driving control module 40 fixes the driving stick 30 in a state where the driving stick 30 pulls the movable part or releases the fixing.

More specifically, the drive control module 40 includes a drive handle 41 and a ratchet gear 42 coupled to the drive handle 41 and rotated according to the variableness of the drive handle 41, as shown in FIG. A pole 43 having a wedge shape that can be engaged with the ratchet gear 42 to fix or release the rotation state of the ratchet gear 42, and the ratchet gear 42 and the pole ( 43) is built into the module case 47, the second joint 33 may be installed in the form of directly connecting the drive handle 41 and the other end of the drive stick 30.

Since the second joint 33 is directly installed on the drive handle 41, as shown in FIG. 6, the operator's operation of the drive handle 41 is transmitted to the traction ring 123 through the drive stick 30. do. In this way, since the operation of the drive handle 41 is transmitted to the movable part 12 as a linear motion directly without being converted into a rotational motion, the moment the operator operates the drive handle 41 and the grip of the clamp head 10 The operation is completely consistent, and since the gripping force is increased by the variable distance of the driving handle 41, the operator's manipulation sensation is remarkably improved regardless of the length of the smart stick 10. Therefore, even if the smart stick 10 is formed long as needed, the work can be performed while maintaining an immediate sense of operation, so that even beginners can freely perform the work.

The improvement of the manipulation sense is more important as the distance between the operator and the work target increases. Because, if the distance between the worker and the work object is large, safety from electric shock is secured, but in the structure of the conventional smart stick, the motion generated by the manipulation motion is converted from a linear motion into a rotational motion through a complex mechanism and then converted into a linear motion again. because it is transmitted.

In addition, as shown in FIG. 6, the driving handle 41 is integrally rotated with the ratchet gear 42, and the driving handle 41 is installed such that its longitudinal direction forms an acute angle with the longitudinal direction of the smart stick 20. It is installed so that the direction of the apex of the acute angle faces the side of the clamp head 10, and between the longitudinal direction of the drive handle 41 and the direction of the imaginary straight line in which the second joint 33 is connected to the center of rotation of the ratchet gear 42 A certain angle is formed, so that the driving handle 41 can be operated while the operator supports the entire load of the smart stick 20 with one hand and simultaneously grips the driving handle 41 and the handle 22 with only the other hand, At the same time, the second joint 33 does not need to be installed too close to the operator's hand, so the length of the drive stick 30 does not need to be manufactured too long.

In this way, if the angle of the point at which the second joint 33 is located based on the center of the ratchet gear 42 and the angle of the part operated by the operator on the drive handle 41 are separated from each other by more than a certain angle, as shown in FIG. Likewise, the driving handle 41 may be formed in a branched form where the operator grips and manipulates the part where the second joint 33 is installed, or the part manipulated by hand is rod-shaped and the second joint 33 is The installed portion may be formed in a plate shape.

In addition, it is necessary to perform not only the object gripping operation of the clamp head 10 but also the releasing operation quickly during the working process. To this end, as shown in the plan view of FIG. 7 , the drive control module 40 includes a return spring 44 that returns the ratchet gear 42 to rotate at an original angle when the pawl 43 is separated from the ratchet gear 42 . ), and an elastic spring 45 for applying an elastic force in a direction in which the pole 43 is in close contact with the ratchet gear 42 may be further included.

Referring to FIGS. 7 and 8, the return spring 44 is installed in the form of a normal tension spring on the same axis as the rotation axis of the ratchet gear 42, but is not necessarily limited to the installation form of FIGS. 7 and 8, and tension If it is not a spring but a type capable of rotating the rotation shaft of the ratchet gear 42, it may be in the form of a rotating rope having one end fixed to the shaft and a compression spring connected to the other end of the rope, although not shown.

The present invention described above is not limited by the foregoing embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within a range that does not deviate from the technical spirit of the present invention. will be clear to those who have knowledge of

10: clamp head 11: fixed holder part
12: movable part 14: spacing maintaining spring
15: stick coupling end 20: smart stick
21: stick body 22: handle
23: safety hanger 30: driving stick
31: drive stick body 32: first joint
33: second joint 40: drive control module
41: drive handle 42: ratchet gear
43: pole 44: return spring
45: elastic spring 46: bearing
47: module case 111: holder body
112: first manned home 113: second manned home
116: second separation prevention groove 117: long hole for passing through the ring
121: movable body 122: tip hook
123: hook for traction 124: first separation prevention groove

Claims (9)

A fixed holder portion fixed to the end of the smart stick for live work;
a movable part variably coupled to the fixed holder part;
a space maintaining spring installed between the fixed holder part and the movable part to maintain a constant distance between the movable part and the fixed holder part by applying an elastic force to the movable part; and,
It is fixed to the holder part and has a stick coupling end having a form that can be assembled to the end of the smart stick; includes,
By forming a ring for traction at a predetermined portion of the movable part,
An object that can be inserted between the fixed holder part and the movable part can be gripped while pulling the movable part with the traction ring,
At the tip of the movable part, a tip hook is provided, which is a member formed in a shape that extends in a direction away from the fixed holder part and then bends and extends in a horizontal direction from the end surface of the fixed holder part from the bent point,
As the movable part advances or retreats toward the end surface of the fixed holder part, it is possible to grip or release an object interposed between the tip hook and the end surface,
The movable part is composed of a tip hook and a movable body,
A hollow is formed inside the fixed holder part so that the movable body can be varied along the longitudinal direction of the fixed holder part,
The clamp head, characterized in that a long hole for passing the tow ring is formed in the body of the fixed holder part so that the tow ring is integrally variable with the movable body while being exposed to the outside of the fixed holder part. delete delete According to claim 1,
A first guiding groove through which a movable body can pass is formed on an end surface of the fixed holder portion to communicate with the hollow,
A second guiding groove is further formed to intersect with the first guiding groove, and the tip hook inserts a part of the target object into the first guiding groove or the second guiding groove, so that the object is gripped between the tip hook and the end surface. Clamp head, characterized in that the risk of falling is prevented. A smart stick with a clamp head made of any one of claims 1 or 4 installed at the end and made of an insulating material long,
A smart stick made of an insulating material long, the end of which is assembled with the stick coupling end, and a handle provided on the opposite side in the longitudinal direction of the stick coupling end;
a clamp head assembled to the stick coupling end;
a driving stick having one end coupled to the traction ring and the other end variably coupled to the smart stick, and thereby pulling the movable part to approach the end surface of the fixed holder part by being variable along the length direction of the smart stick; and,
A smart stick comprising a drive control module that fixes the drive stick or releases the fixed state of the drive stick in a state where the drive stick pulls the movable part. According to claim 5,
The driving stick is connected to the traction ring through a first joint and connected to the smart stick through a second joint,
The second joint is a joint composed of a hinge shaft, and the second joint is a smart stick characterized in that for directly connecting the other end of the drive stick and the drive control module. According to claim 6,
The drive control module
drive handle,
A ratchet gear coupled to the drive handle and rotated according to the variableness of the drive handle;
A pole for fixing or releasing the rotation state of the ratchet gear;
It consists of a module case with a built-in ratchet gear and pole,
The second joint is a smart stick, characterized in that for directly connecting the drive handle and the other end of the drive stick. According to claim 7,
The drive control module further comprises a return spring for returning the ratchet gear to rotate at an original angle when the pawl is separated from the ratchet gear, and an elastic spring for applying an elastic force in a direction in which the pawl is brought into close contact with the ratchet gear. Smart characterized in that stick. According to claim 7,
The drive handle rotates integrally with the ratchet gear,
The drive handle is installed so that the longitudinal direction and the longitudinal direction of the smart stick form an acute angle, and the direction of the apex of the acute angle is directed toward the clamp head side,
A smart stick, characterized in that a constant angle is formed between the longitudinal direction of the drive handle and the direction of a virtual straight line in which the second joint is connected to the rotation center of the ratchet gear.

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