Handle for industrial circuit breaker using multiple interlocking to improve safety

Abstract

The present invention relates to a handle for an industrial circuit breaker for improving safety by using multiple interlocking, the handle for operating the industrial circuit breaker comprising: a fixed part formed on the outer surface of the housing of the industrial circuit breaker; and a rotating part which is formed so as to be rotatable in a state of covering one side of the fixed part, is connected to a shaft part extending from the switch part inside the case, and rotates the shaft part together to change the opening / closing state of the switch part as the rotating part rotates, the handle is provided with a plurality of locking mechanisms, and when the provided locking mechanisms are all unlocked, the rotating part rotates with the shaft part to change the opening / closing state of the switch part. The rotating part rotates in one direction to the limit of the rotation movable range, so that the switch part can be changed to the open state.

Description

TECHNICAL FIELD

[0001] The present invention relates to a handle for operating an industrial circuit breaker. BACKGROUND

[0002] In an industrial site, various work devices such as a motor can be used, and in order to supply current to such devices or cut off the current, an industrial circuit breaker is generally provided at a nearby position.

[0003] Even if an industrial circuit breaker is provided in order to safely control the supplied current and prevent an electric shock accident or the like in an industrial site, safety accidents continue to occur.

[0004] For example, various noises are often generated in an industrial site, and thus, cases where workers cannot smoothly communicate with each other frequently occur. In this case, the power supply time / cut-off time due to the operation of the circuit breaker can be deviated from the intended time, and in a case where a circuit breaker is operated by other people who are not designated people, a safety accident can also occur.

[0005] In order to solve the above-described problems, the inventors of the present invention have finally completed the development of the present invention through long-term research and practical exploration. SUMMARY

[0006] TECHNICAL PROBLEM

[0007] In order to solve the above-described problems, the present invention aims to provide a handle of an industrial circuit breaker, provided with a plurality of locking mechanisms, in a case where all of the provided locking mechanisms are released from locking, a rotating portion is rotated in one direction to a limit of a rotatable range, and thus, it is possible to change a switch portion to an open state.

[0008] The technical objects to be achieved by the present invention are not limited to the above-mentioned technical objects, and other technical objects not mentioned herein will be clearly understood by a person skilled in the art to which the present invention pertains, from the following description.

[0009] TECHNICAL SOLUTION

[0010] In order to achieve the above-described objects, a handle according to an embodiment of the present invention is used to operate an industrial circuit breaker, and the handle of the industrial circuit breaker includes a fixed portion formed on an outer surface of a box of the industrial circuit breaker, and a rotating portion formed to be rotatable in a state of covering one side of the fixed portion, connected to a shaft portion extending from a switch portion inside the box, and rotated together with the shaft portion to change an opening / closing state of the switch portion as the rotating portion is rotated, the handle being provided with a plurality of locking mechanisms, in a case where all of the provided locking mechanisms are released from locking, the rotating portion is rotated in one direction to a limit of a rotatable range, and thus, it is possible to change the switch portion to an open state.

[0011] According to a preferred embodiment of the present application, whenever the locking of each locking mechanism is released, the rotating portion can be gradually rotated by an external force within a predetermined range so that the degree of locking release of the handle can be visually confirmed.

[0012] According to a preferred embodiment of the present application, when the locking release of all the locking mechanisms is performed in the order set for the plurality of locking mechanisms, the switch portion can be changed to an on state.

[0013] According to a preferred embodiment of the present application, the fixed portion includes an inner locking ring having a plurality of first locking holes horizontally arranged corresponding to the curvature, and the rotating portion includes an outer locking ring formed to cover the inner locking ring and having second locking holes horizontally arranged corresponding to the first locking holes, the first and second locking holes corresponding to each other constitute a pair of locking mechanisms, and the locking function of the interlocking device fastened by the pair of first and second locking holes can be provided.

[0014] According to a preferred embodiment of the present application, whenever the locking of each locking mechanism is released, the inner locking ring detects the locking release to allow the rotating portion to rotate within a predetermined range in one direction, and as the rotation of the rotating portion is allowed, whenever the rotating portion rotates within a predetermined range in one direction, the first locking hole of the locking mechanism that was most recently released is closed, and whenever it rotates within a predetermined range in the other direction, the first locking hole can be opened in an order opposite to the order in which the first locking hole was closed.

[0015] According to a preferred embodiment of the present application, in a state in which the door of the cabinet is closed, the industrial circuit breaker is connected to an external power source, and in a state in which the door is opened, the industrial circuit breaker cuts off the external power source, and the industrial circuit breaker includes a stopper device that will open the door in a working situation so that the door is maintained in an open state, and when the rotating portion rotates in the other direction to the limit of the rotating movable range, the door can be opened and the external power source can be cut off by activating the stopper device.

[0016] Effects of the Invention

[0017] The present application has the effect that, since the plurality of locking mechanisms are provided, in a case in which all the locking mechanisms provided are released, the rotating portion rotates in one direction to the limit of the rotating movable range, so that the switch portion can be changed to an on state, and thus the industrial circuit breaker can be accurately activated only in a situation in which power supply or power cut is required by a manager who designates each locking mechanism.

[0018] The present application also has the effect that a safety accident can be prevented by preventing the industrial circuit breaker from malfunctioning due to a communication error between workers in an industrial site.

[0019] The present application also has the effect that, in the case of leakage of the cabinet of the industrial circuit breaker, the handle can be operated in the other direction to open the door and prevent leakage.

[0020] On the other hand, even if there is no explicitly mentioned effect, the intended effects achieved by the technical features according to the present application, the effects described in the following description and their potential effects should be considered as the same as the content described in the specification of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figures 1 to 3 Reference diagram for explaining the setting form of the handle of the industrial circuit breaker according to the present application.

[0022] Figure 4 Reference diagram for explaining the specific form of the handle of the industrial circuit breaker according to the present application.

[0023] Figures 5 to 7 Reference diagram for explaining the leakage prevention structure of the stop device according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In the course of explaining the present application, when it is judged that the relevant known functions, which are obvious to those skilled in the art to which the present application pertains, can unnecessarily confuse the gist of the present application, the detailed description thereof will be omitted.

[0025] The system of the present application and the execution device thereof can be implemented by a computer including one or more processors, memories, etc. As an embodiment, the computer can include various devices such as a personal computer, a server computer, a smartphone, a tablet computer, a wearable device, etc. In this case, the computer can be expressed as a user terminal, a service terminal, a service server, etc. according to the use subject.

[0026] In the present specification, the terms "part", "module", "component", "interface", etc. relate to a computer-related entity, which means hardware, a combination of hardware and software, or software. For example, "communication part", "communication module" means hardware, a combination of hardware and software, or software that performs a communication function.

[0027] Figures 1 to 3 Reference diagram for explaining the setting form of the handle 3000 of the industrial circuit breaker 1000 according to the present application.

[0028] Specifically, Figure 1 A diagram showing the form of observing the circuit breaker 1000 from the front. Figure 2 A diagram showing the internal form of the circuit breaker 1000.

[0029] Reference Figure 1 andFigure 2 The circuit breaker 1000 of the present application includes a case 1100, a handle 3000, a switch part 1300 including a bearing 1220 connecting the handle and the switch part to transmit a rotational force from the handle.

[0030] The handle 3000 for controlling the switch part 1300 inside the case can be provided at an outer side of the case 1100. The handle 3000 has a form extending in one direction so that a user can easily hold it with a hand. The handle 3000 is connected to the case 1100 so as to be rotatable about a point attached to an outer side of the case 1100. The handle 3000 opens and closes the switch part 1300 at a predetermined rotational position, and a user can easily recognize an open or closed state of the switch part 1300.

[0031] The switch part 1300 is provided inside the case 1100 and connected to the handle 3000, and the opening and closing of an external power supply can be adjusted by operating the handle 3000 provided at an outer side of the case 1100. For example, the bearing 1220 transmits a rotational force of the handle 3000 to the switch part 1300, and the open or closed state of the switch part 1300 can be adjusted.

[0032] Also, Figure 3 A view showing a form of the circuit breaker 1000 viewed from a side.

[0033] Referring to Figure 3 The handle 3000 can change the switch part 1300 to an open state or a closed state at a set position.

[0034] For example, the switch part 1300 can be in a closed state in a state in which a holding part of the handle 3000 is perpendicular to the ground, and can be in an open state in a state in which the holding part of the handle 3000 is perpendicular to the ground by rotating in one direction. However, a method of changing a state of the switch part according to a position of the handle 3000 is not limited thereto, and various methods can be applied according to an environment in which the industrial circuit breaker is installed, etc.

[0035] Figure 4 A view for explaining a detailed form of the handle 3000 of the industrial circuit breaker 1000 of the present application.

[0036] Referring to Figure 4 The handle 3000 includes a fixing part 3100 formed at an outer surface of the case 1100 of the industrial circuit breaker.

[0037] Furthermore, the handle 3000 includes a rotating part 3200, which is configured to rotate while covering one side of the fixed part 3100. It is connected to a shaft part 1220 extending from the switch part 1300 inside the housing 1100. As it rotates, the shaft part 1220 rotates together to change the open and closed state of the switch part 1300.

[0038] Furthermore, the handle 3000 is equipped with multiple locking mechanisms 3250. When all the locking mechanisms 3250 are unlocked, the rotating part 3200 rotates in one direction to the limit of its rotational range, thereby changing the switch part 1300 to the open state.

[0039] According to one embodiment of the present invention, whenever the locking mechanism 3250 provided on the handle is released, the rotating part 3200 can be gradually rotated within a specified range by external force, and the degree of release of the lock on the handle 3000 can be visually confirmed.

[0040] For example, such as Figure 3 As shown, when the grip portion of the handle 3000 is perpendicular to the ground and pointing downwards, the switch portion 1300 is in the closed state; when the grip portion of the handle 3000 is perpendicular to the ground and pointing upwards, the switch portion 1300 is in the open state. With this configuration, the total rotational range of the rotating portion 3200 is 180 degrees. If three locking mechanisms are provided, they can be configured to rotate 60 degrees gradually each time the locking mechanism 3250 is released.

[0041] Furthermore, when all locking mechanisms are unlocked in accordance with the lock release sequence set for the multiple locking mechanisms 3250 installed on the handle 3000, the switch section 1300 can be changed to the open state.

[0042] For example, when the handle has three locking mechanisms, an inherent locking and unlocking sequence for each locking mechanism can be set. Specifically, if the locking mechanism set as the first priority is not unlocked first, the rotating part 3200 of the handle will be completely unable to rotate. In this case, after all locking mechanisms are reset to the locked state, the unlocking will begin from the locking mechanism set as the first priority. The inherent locking and unlocking sequence can be detected by a sensor located inside at least one of the first and second locking holes described later.

[0043] Furthermore, the fixing part 3100 includes an inner locking ring with a plurality of first locking holes 3251 horizontally arranged corresponding to the curvature. The rotating part 3200 may include an outer locking ring 3210, which is formed to cover the inner rotating locking ring, and has a second locking hole 3252 horizontally arranged corresponding to the first locking holes 3251. In this case, each locking ring is fixed in its original position, and only the holding part 3220 of the rotating part 3200 can be rotated by external force. The locking ring and the holding part 3220 can also rotate together.

[0044] The first locking hole 3251 and the second locking hole 3252, which correspond to each other, form a locking mechanism 3250 as a pair, which can provide the locking function of the interlocking device that is fastened by the first locking hole 3251 and the second locking hole 3252 as a pair.

[0045] Furthermore, whenever the locking mechanisms 3250 are released, the internal locking ring detects the release and allows the rotating part 3200 to rotate within a predetermined range in one direction. As the rotating part 3200 rotates, it closes the first locking hole 3251 of the most recently released locking mechanism 3250 whenever it rotates within a predetermined range in one direction. Conversely, it opens the first locking hole 3251 in the reverse order of closing it whenever it rotates within a predetermined range in another direction. In this case, preferably, each locking ring remains fixed in its original position, allowing the operator to easily confirm the locking hole status, with only the gripping part 3220 of the rotating part 3200 being rotated by external force.

[0046] Therefore, after completing their work on the industrial site, multiple users of the 3250 handle locking mechanism fastening interlock device can avoid confusing the position of their own locking mechanism.

[0047] For example, during the process of changing the switch 1300 from the open state to the closed state, a specific first locking hole (one of 3151-1 to 3151-3) can be opened within a predetermined rotation range. Specifically, as... Figure 4 As shown, there are three locking mechanisms 3250. During the process of changing the switch part 1300 of the circuit breaker to the closed state, if the first locking hole 3151-1 of the locking mechanism 3250, which consists of the first locking hole 3151-1 and the second locking hole 3152-1, is opened first, then the person who last unlocks the device can tighten the interlocking device that passes through the first locking hole 3151-1 and the second locking hole 3152-1 after confirming that the locking mechanism 3250 with the first locking hole 3151-1 is open. Subsequently, the person who performs the lock release in the middle sequence confirms the opening of the first locking hole (3251-2 or 5251-3) and tightens the interlocking device.

[0048] Figures 5 to 7FIG. 1 is a perspective view of an industrial circuit breaker 1000 according to an embodiment of the present application.

[0049] The industrial circuit breaker 1000 of the present application can include a blocking device 1250 for preventing an electric shock accident caused by an electric leakage.

[0050] In a state in which a door 1120 of a cabinet 1100 is closed, the industrial circuit breaker 1000 is connected to an external power source, and in a state in which the door 1120 is opened, the industrial circuit breaker 1000 can cut off the external power source.

[0051] Referring to Figure 5 , the blocking device 1250 is disposed adjacent to an end portion of the other side to which the body 1110 and the door 1120 are not hingedly coupled, and in an operating state, a portion thereof protrudes toward the outside of the cabinet 1100, so that the door 1120 can be maintained in an open state. Although it is possible to cut off the external power source at a moment at which the door 1120 is opened to prevent an electric shock risk, in a case in which the door 1120 is closed again during work, the user can be exposed to an electric shock risk, and thus the blocking device 1250 needs to maintain the open state of the door 1120 to continuously cut off the external power source during work.

[0052] If the rotating portion 3200 of the handle 3000 is rotated in the other direction to a limit of a rotating movable range due to external pressure applied to the gripping portion 3220, the blocking device 1250 can be activated to open the door and cut off the external power source.

[0053] Also, the handle 3000 minimizes an electric shock risk of a user, and can be supported by a material such as rubber to provide a frictional force of a predetermined level or more, so that the user can easily rotate the handle 3000 by a kicking action or by using a bar-shaped tool.

[0054] Figure 6 and Figure 7 FIG. 2 is a cross-sectional view of the other side of the body 1110 and the door 1120 not hingedly coupled, taken from above, and referring to Figure 6 and Figure 7 The blocking device 1250 can include a blocking unit 1270 that moves in a direction of a contact surface T between the body 1110 and the door 1120 of the other side in an operating state of the blocking device 1250, so that the body 1110 and the door 1120 are spaced apart from each other to maintain the open state of the door 1120. Referring to Figure 5 In order to stably maintain the open state of the door 1120, the blocking unit 1270 can be provided in a plurality, and can be vertically arranged along the contact surface T between the body 1110 and the door 1120 of the other side.

[0055] And, the blocking device 1250 can include a blocking driving part 1260 that, in the case where the trigger is activated by rotation of the rotating part 3200, emits a plurality of blocking units 1270 using an internal elastic device, such that the plurality of blocking units 1270 move in the direction of the contact surface T between the other-side body 1110 and the door 1120.

[0056] And, the body 1110 and the door 1120 can include a guide part 1111 and a fixed shoulder 1113, respectively, at the other-side end portions where the hinge coupling is not implemented, for assisting the operation of the blocking device 1250.

[0057] Specifically, the blocking unit 1270 can include an entry part 1271, a contact prevention part 1272, a support part 1273, and a braking part 1274.

[0058] As the blocking unit 1270 moves, the entry part 1271 enters between the contact surfaces T of the body 1110 and the door 1120, and a form in which the two contact surfaces T are spaced apart from each other can be formed. For example, a conical form having an inclined surface can be formed.

[0059] If the entry of the blocking unit 1270 is completed by the entry part 1271, the contact prevention part 1272 makes the two contact surfaces T unable to contact, and performs an action such that the door 1120 is maintained in an open state.

[0060] The support part 1273 performs a support action so as to prevent deformation of a structure formed at the other-side end portions of the body 1110 and the door 1120 where the hinge coupling is not implemented.

[0061] Specifically, the support part 1273 can have an inclined surface having the same inclination angle as that of the entry part 1271. Thereby, in the case where the guide part 1111 is collided with the blocking unit 1270 due to rotation in the closing direction of the door 1120, the guide part 1111 can be stably supported, and a condition in which the end portion structure is deformed, for example, the inclination angle of the guide part 1111 is shifted, etc. can be prevented.

[0062] The braking part 1274 is collided with the end portion structure of the fixed shoulder 1113, etc. to be described later, and can perform an action such that the blocking unit 1270 is unable to further move. The rear surface of the braking part 1274 is directly or indirectly connected to the elastic device of the blocking driving part 1260, and can apply a pressure to emit the blocking unit 1270.

[0063] As a structural element of the end portion, the guide part 1111 has an inclined surface corresponding to the entry part 1271 of the moving blocking unit 1270, and can reduce friction between the entry part 1271, and can guide the tip of the entry part 1271 to move toward between the body 1110 and the door 1120.

[0064] As the end portion of the structural element, the fixed shoulder 1113 collides with the braking portion 1274 of the movable blocking unit 1270, limits the movable range of the blocking unit 1270 within a prescribed range, and allows the contact prevention portion 1272 of the working blocking unit 1270 to be positioned between the contact surfaces T of the end portions on the other side.

[0065] It will be obvious to those having ordinary skill in the art to which the present application pertains that the present application can be implemented by other specific embodiments within the scope of the characteristics of the present application. Therefore, the detailed description as described above is merely an example in all aspects and should not be interpreted as a limiting meaning. The scope of the present application should be determined based on a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present application belong to the scope of the present application.

Claims

1. A handle of an industrial circuit breaker for improving safety using multiple interlocks, for operating an industrial circuit breaker, the handle comprising: a fixed portion formed on an outer surface of a case of the industrial circuit breaker; and a rotating portion formed to be rotatable in a state of covering one side of the fixed portion, connected to a shaft portion extending from a switch portion inside the case, and rotating the shaft portion together to change an opening and closing state of the switch portion as the rotating portion rotates, the handle being provided with a plurality of locking mechanisms, and in a case where all of the locking mechanisms provided are unlocked, the rotating portion rotates in one direction to a limit of a rotation movable range, thereby being able to change the switch portion to an open state. The rotating portion is gradually rotated by an external force by a predetermined range each time the locking of each of the locking mechanisms is released, so that the degree of release of the locking of the handle can be visually confirmed. When the release of the locking of all of the locking mechanisms is performed in accordance with a release order of the locking set for the plurality of locking mechanisms, the switch portion can be changed to the open state. 4.The handle of the industrial circuit breaker for improving safety using multiple interlocks according to claim 2, wherein the fixed portion includes an inner locking ring, a plurality of first locking holes are horizontally provided in correspondence with a curvature, the rotating portion includes an outer locking ring, formed in a form of covering the inner locking ring, a second locking hole is horizontally provided in correspondence with the first locking hole, a pair of the first locking hole and the second locking hole corresponding to each other constitute one locking mechanism, and a locking function using an interlocking device fastened in a state where the pair of the first locking hole and the second locking hole is provided. 5.The handle of the industrial circuit breaker for improving safety using multiple interlocks according to claim 4, wherein the inner locking ring detects the release of the locking to allow the rotating portion to rotate in one direction by a predetermined range each time the locking of each of the locking mechanisms is released, 2. The handle of an industrial disconnection switch with improved safety by multiple interlocking according to claim 1, characterized in that, as the rotation of the rotating portion is allowed, the first locking hole of the locking mechanism whose locking is most recently released is closed each time the rotating portion rotates in one direction by a predetermined range, and the first locking hole is opened in an order opposite to an order of closing the first locking hole each time a predetermined range is rotated in the other direction.

3. The handle of an industrial disconnection switch with improved safety by multiple interlocking according to claim 1, characterized in that, 6.The handle of the industrial circuit breaker for improving safety using multiple interlocks according to claim 1, wherein the industrial circuit breaker is connected to an external power source in a state where a door of the case is closed, and the external power source is cut off in a state where the door is opened, the industrial circuit breaker includes a stopper device that is to be activated to open the door in a case where the door is opened, so that the door is maintained in an open state, when the rotating portion rotates in the other direction to the limit of the rotation movable range, the door is opened and the external power source is cut off by activating the stopper device. ​ ​ ​ ​ ​ ​ ​ ​ ​

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