CONTROLLING STICK FOR FUSE HOLDER OF CUT OUT SWITCH with a hanger ring part

Abstract

The present invention comprises a first locking part (112a) formed on one side of the upper part of a T-shaped body (110) to stably grip without shaking left or right when inserted into and hooked by the hook eye (17c) of a fuse holder (17), a second locking part (112b) formed on the other side of the upper part of the body (110) to engage with the lower contact (17b) of the fuse holder (17), and a rotating body (160) rotates 90 degrees via a lifting shaft (120) on a shaft support part (116) formed on one side of the lower part of the body (110), thereby moving its position from right to left and rising while wrapping around one side of the second locking part (112b), so as to grip the lower contact (17b) of the fuse holder (17) engaged with the second locking part (112b) so that it does not detach while the fuse holder (17) is being replaced. Since it is composed of an operating bracket (100) in which a gripping projection (164) is formed, when replacing the upper contact member (17a) and lower contact member (17b) of the fuse holder (17) by separating them from the upper contact bracket (16a) and lower contact bracket (16b) of the COS, the fuse holder (17) can be easily gripped by one-touch operation of the operating bracket (100), so the replacement work can be done in a short time. In addition, it has the advantage of preventing safety accidents in which the fuse holder (17) is separated from the operating bracket (100) and falls because the fuse holder (17) cannot be firmly gripped during the replacement work, thereby preventing electric shock accidents for workers and the general public.

Description

Technology Field

[0001] The present invention relates to an operating fitting for a fuse holder of a cutout switch mounted on the upper part of an operating rod, and more specifically, to an operating fitting for a fuse holder of a cutout switch used when replacing the fuse holder of a cutout switch. Background Technology

[0002] The conventional high-voltage cut-out switch (hereinafter referred to as COS) operating rod (10) is broadly classified as shown in FIG. 1 of the attached drawings and consists of an operating fitting (11) for operation in a T-shape and an extendable rod (12) that can be extended and retracted.

[0003] As shown in FIG. 2, the above operating fitting (11) is composed of a protruding rod (13) with one end protruding in the shape of a peak for operating the COS, a curved part (14) with the other end curved downward, and a connecting part (15) in which the rod (12) can be attached and detached according to the angle of use at the central part.

[0004] The replacement of the fuse holder (17) using the conventional operating rod (10) is performed as follows.

[0005] That is, the operating fitting (11) of the operating rod (10) is hooked onto the hook eye of the fuse holder (17) installed on the primary side of the pole-mounted transformer or the extra-high voltage demarcation point, and the operating rod (10) is forcefully struck downward from above so that the upper contact of the fuse holder (17) is separated from the upper contact fitting of the COS (16) body (see FIG. 3).

[0006] Next, the operating fitting (11) of the operating rod (10) is inserted into the lower contact of the fuse holder (17) to separate the fuse holder (17) from the body of the COS (16) (see FIG. 4).

[0007] Then, after replacing the fuse holder (17), the replaced fuse holder (17) is inserted into the operating rod (10) and the lower contact of the fuse holder (17) is inserted into the lower contact fitting of the COS (16) body (see FIG. 5), and the hook eye of the fuse holder (17) is inserted into the operating rod (10) and the operating rod (10) is forcefully pushed up from top to bottom so that the upper contact of the fuse holder (17) is combined with the upper contact fitting of the COS (16) body.

[0008] However, when inserting the operating rod (10) into the lower contact of the conventional fuse holder (17) and inserting it into the lower contact fitting of the COS (16) body, an accurate coupling angle with the fuse holder (17) is required. In the case of the conventional product, the contact surface between the lower contact of the fuse holder (17) and the operating fitting (11) of the operating rod (10) is narrow, making it difficult to maintain the horizontal position of the fuse holder (17) (in FIG. 4). The red cross indicates a crooked connection between the fuse holder (17) and the operating rod (10). Furthermore, when a worker climbs a utility pole to replace the fuse holder (17), there is a disadvantage that it is difficult to accurately insert the lower contact fitting of the COS (16) body due to the crookedness of the fuse holder (17) caused by difficulties such as the operating length and weight of the operating rod (10) and the upward working environment (the part indicated by the red circle in FIG. 5 shows the crooked insertion of the COS (16) body and the fuse holder (17).

[0009] In addition, the operation proceeds by hooking the protruding rod (13) on the operating bracket (11) side of the operating rod (10) onto the hook eye of the fuse holder (17), then forcefully striking the operating rod (10) from top to bottom so that the upper contact of the fuse holder (17) is separated from the upper contact bracket of the COS (16) body, and then inserting the protruding rod (13) on the operating bracket (11) side of the operating rod (10) into the lower contact of the fuse holder (17) to separate the fuse holder (17) from the COS (16) body. Because the protruding rod (13) cannot firmly grip the fuse holder (17), there is a problem that when the fuse holder (17) falls to the ground at the moment of separation, it may pose a safety threat to workers and the general public within the work area, and during this process, the worker must maintain the angle of the operating rod (10) to prevent shaking and falling of the fuse holder (17), which results in an excessive amount of work time. Prior art literature

[0010] Republic of Korea Published Patent Application No. 10-2012-0084498 (July 30, 2012) The problem to be solved

[0011] The objective of the present invention, devised in consideration of existing problems, is to provide an operating bracket for a fuse holder of a cutout switch that allows the fuse holder to be easily grasped by one-touch operation of the operating bracket when the upper and lower contacts of the fuse holder are replaced from the upper and lower contact brackets of the COS. means of solving the problem

[0012] The operating fitting for replacing the fuse holder according to the present invention for solving the above technical problem, which is detachably connected to the rod of an operating rod, comprises: a body having a protruding rod formed on its upper portion that can be hooked onto the hook eye or lower contact of the fuse holder; a lifting shaft supported to be raised to a certain height by a first pin while penetrating a shaft support formed on one side of the lower portion of the body; a rod connecting portion connected to the lower portion of the lifting shaft by a second pin to be connected to the rod rod; a rotating body whose upper portion is connected to the upper portion of the lifting shaft by a third pin and whose lower portion is fitted to the upper outer circumference of the shaft support portion to be raised; and a spring disposed between the upper portion within the shaft support portion and the lower portion within the rotating body.

[0013] As another embodiment, the lower side of the body of the present invention is characterized by having a curved portion in the shape of an L-shape formed thereon.

[0014] In another embodiment, the protruding rod of the present invention is characterized by comprising: a first hook portion that protrudes horizontally from one side of the upper end of the body to be caught on the hook eye; and a second hook portion that protrudes horizontally from the other side of the upper end of the body to be caught on the lower contact of the fuse holder.

[0015] In another embodiment, the shaft support of the present invention is characterized in that a first shaft hole is formed in the center so that the lifting shaft can vertically penetrate it, a second shaft hole is formed at the upper end of the first shaft hole with an inner diameter expanded to a certain depth so that the lower end of the spring is seated thereon, and an operating groove is formed at the lower end of the first shaft hole with one side of the circumference cut to a certain height so that the first pin is inserted or removed to guide the lifting of the lifting shaft.

[0016] As another embodiment, the width of the first hook portion of the present invention is formed to correspond to the thickness of the hook eye.

[0017] In another embodiment, the first pin of the present invention is characterized by being coupled to penetrate horizontally from the lower part of the lifting shaft at a certain height so as to contact the lower end of the shaft support or be inserted into the operating groove.

[0018] In another embodiment, the second pin of the present invention is characterized by being coupled to horizontally penetrate the upper shaft hole of the rod connection portion and the lower connection portion of the lifting shaft.

[0019] In another embodiment, the third pin of the present invention is characterized by being coupled to horizontally penetrate the upper hollow portion of the rotating body and the upper connecting portion of the lifting shaft.

[0020] In another embodiment, the spring of the present invention is characterized by being positioned between the second shaft hole and the hollow portion while fitted onto the outer circumference of the lifting shaft.

[0021] As another embodiment, the present invention is characterized in that a gripping projection is formed protruding from one side of the upper outer circumference of the rotating body, which wraps around one side of the second locking part or is spaced apart from the second locking part by a 90-degree rotation of the rotating body.

[0022] In another embodiment, the gripping projection of the present invention is characterized by being in the shape of a semicircular ring. Effects of the invention

[0023] The operating bracket of the fuse holder of the cutout switch of the present invention allows the fuse holder to be easily grasped by one-touch operation of the operating bracket when replacing the upper contact and lower contact of the fuse holder so that they are separated from the upper contact bracket and lower contact bracket of the COS, thereby enabling replacement work to be done in a short time, and also has the effect of preventing safety accidents in which the fuse holder separates from the operating bracket and falls due to not being firmly gripped during replacement work. Brief explanation of the drawing

[0024] Figure 1 is a photograph of a conventional COS operating rod. Figure 2 is a photograph showing the side view of the operating fitting in a conventional COS operating rod. Figure 3 is a photograph showing the operation of opening the COS using a conventional COS operating rod. Figure 4 is a photograph showing the process of separating and replacing a fuse holder using a conventional operating rod. FIG. 5 is a photograph showing the process of inserting a fuse holder using a conventional operating rod. FIG. 6 is an example diagram illustrating a typical cutout switch. FIGS. 7 and FIGS. 8 are photographs of the front and side of an operating fitting according to the present invention. FIGS. 9 and FIGS. 10 are exemplary drawings illustrating the lifting cross-sectional structure of an operating fitting according to the present invention. FIG. 11 is a photograph showing the operating fitting according to the present invention hooked onto the hook eye of a fuse holder. FIGS. 12 and 13 are photographs showing the front and side states in which the operating fitting according to the present invention grips the lower contact of the fuse holder. Specific details for implementing the invention

[0025] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 6 to 13, in order to fully understand the present invention. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. It should be noted that in each drawing, identical components may be illustrated with the same reference numerals. Detailed descriptions of known functions and components that are deemed to unnecessarily obscure the essence of the present invention are omitted.

[0026] For reference, regarding the configuration of the present invention, the same names and symbols are assigned to configurations identical to conventional (existing) configurations, and redundant descriptions are omitted.

[0027] The operating fitting (100), which is detachably connected to the rod of the operating rod for replacing the fuse holder (17) of the present invention, comprises a T-shaped body (110), a lifting shaft (120), a first pin (130), a second pin (132), a third pin (134), a rod connecting part (140), a spring (150), and a rotating body (160).

[0028] That is, the above body (110) has a protruding rod (112) formed on its upper side that can be hooked onto the hook eye (17c) or lower contactor (17b) of the fuse holder (17), a shaft support part (116) formed on one side of the lower side so that a lifting shaft (120) passes vertically through it and is raised to a certain height by a first pin (130), and a curved hanger hook part (114) in the shape of an L is formed on the other side of the lower side to serve the function of easily moving wires or branches by hanging them.

[0029] At this time, the protruding rod (112) comprises: a first hooking part (112a) that protrudes horizontally from one side of the upper part of the body (110) to be caught on a hook eye (17c); and a second hooking part (112b) that protrudes horizontally from the other side of the upper part of the body (110) to be caught on a lower contact (17b) of the fuse holder (17).

[0030] Here, it is preferable that the width of the first hook portion (112a) be formed to correspond to the thickness of the hook eye (17c) so that when the first hook portion (112a) is inserted into the hook eye (17c) and hooked as in FIG. 11, the inner circumference of the hook eye (17c) is seated tightly and stably, minimizing shaking from side to side.

[0031] The above shaft support member (116) has a first shaft hole (116a) formed so that a lifting shaft (120) can pass vertically through the center, a second shaft hole (116b) formed so that the lower part of a spring (150) is seated by expanding the inner diameter to a certain depth from the upper part of the first shaft hole (116a), and an operating groove (116c) formed by cutting one side of the circumference to a certain height from the lower part of the first shaft hole (116a) so that a first pin (130) is inserted or removed to guide the lifting of the lifting shaft (120).

[0032] Here, the operating groove (116c) induces the first pin (130) to move upward along the operating groove (116c) when it aligns with the end of the first pin (130) by a 90-degree rotation of the lifting shaft (120), and simultaneously rotates the rotating body (160), which is connected to the upper part of the lifting shaft (120) via the third pin (134), by 90 degrees, and serves to hold the rotating body (160) so that it does not deviate from a predetermined position after the rotation stops until the first pin (130) escapes from the operating groove (116c).

[0033] It is preferable that the first pin (130) be connected so as to penetrate horizontally from the lower part of the lifting shaft (120) at a certain height so as to contact the lower part of the shaft support (116) or be inserted into the operating groove (116c).

[0034] It is preferable that the second pin (132) is connected so as to horizontally penetrate the upper shaft hole (142) of the rod connection part (140) and the lower connection part of the lifting shaft (120).

[0035] It is preferable that the third pin (134) is connected so as to horizontally penetrate the upper hollow portion (162) of the rotating body (160) and the upper connecting portion of the lifting shaft (120).

[0036] The above-mentioned rod connection part (140) is connected to the lower part of the lifting shaft (120) by a second pin (132) so as to be detachably connected to the upper end of the rod of the operating rod.

[0037] The upper part of the rotating body (160) is connected to the upper part of the lifting shaft (120) by a third pin (134), and the lower part is fitted onto the upper outer circumference of the shaft support part (116) to be supported so as to be lifted.

[0038] At this time, a semicircular ring-shaped gripping projection (164) is formed protruding from one side of the upper outer circumference of the rotating body (160), which wraps around one side of the second locking part (112b) or is spaced apart from the second locking part (112b) by a 90-degree rotation of the rotating body (160).

[0039] Here, the gripping projection (164) serves to grip the lower contact (17b) of the fuse holder (17) so that it does not detach from the second locking part (112b) while the fuse holder (17) is being replaced, by shifting its position from right to left and wrapping around one side of the second locking part (112b) when the rotating body (160) is rotated 90 degrees via the lifting shaft (120) which is rotated by the rod of the operating rod after the lower contact (17b) of the fuse holder (17) is inserted into the second locking part (112b) as shown in FIGS. 12 and 13.

[0040] The above spring (150) is positioned between the upper part within the shaft support (116) and the lower part within the rotating body (160).

[0041] That is, the above spring (150) is fitted onto the outer circumference of the lifting shaft (120) and is positioned between the second shaft hole (116b) and the hollow portion (162) to apply elastic force to cause it to spread in the up and down direction.

[0042] Thus, the present invention is formed such that a first locking part (112a) is formed on one side of the upper part of a T-shaped body (110) to stably grip without shaking left or right when inserted into and hooked by the hook eye (17c) of a fuse holder (17), and a second locking part (112b) is formed on the other side of the upper part of the body (110) to grip the lower contact (17b) of the fuse holder (17), and when the rotating body (160) rotates 90 degrees via a lifting shaft (120) on the shaft support part (116) formed on one side of the lower part of the body (110), it changes position and rises from right to left and wraps around one side of the second locking part (112b), thereby gripping the lower contact (17b) of the fuse holder (17) hooked by the second locking part (112b) so that it does not detach while the fuse holder (17) is being replaced. Since it is composed of an operating bracket (100) in which a gripping projection (164) is formed, the upper contact (17a) and lower contact (17b) of the fuse holder (17) can be easily gripped by one-touch operation of the operating bracket (100) when replacing the fuse holder (17) so that it is separated from the upper contact bracket (16a) and lower contact bracket (16b) of the COS. This allows for replacement work to be done in a short time, and also prevents safety accidents in which the fuse holder (17) is separated from the operating bracket (100) and falls because the fuse holder (17) cannot be firmly gripped during replacement work. Additionally, since the fuse holder (17) can be gripped stably, it eliminates the practice of a worker inserting the fuse holder (17) into the upper contact bracket (16a) and lower contact bracket (16b) of the COS with their hands, thereby preventing electric shock accidents of the worker.

[0043] Meanwhile, the present invention is not limited to the embodiments described above, but can be implemented with modifications and variations within the scope of the essence of the invention, and such technical concepts to which modifications and variations are applied should also be considered to fall within the scope of the following patent claims. Explanation of the symbols

[0044] 16 : COS 16a : Upper contact fitting 16b: Lower contact bracket 17: Fuse holder 17a: Upper contactor 17b: Lower contactor 17c : Hook Eye 100 : Operating Fixture 110 : Body 112 : Protruding rod 112a: First locking part 112b: Second locking part 114: Hanger hook part 116: Shaft support part 116a : 1st shaft hole 116b : 2nd shaft hole 116c : Operating groove 120 : Lifting shaft 130: 1st pin 132: 2nd pin 134: 3rd pin 140: Seal connection part 142 : Shaft hole 150 : Spring 160 : Rotating body 162 : Hollow part 164 : Grasping process

Claims

Claim 1 In an operating fitting (100) that is detachably connected to the shaft of an operating rod for replacing a fuse holder (17), the operating fitting (100) comprises: a body (110) having a protruding rod (112) formed on its upper portion that can be hooked onto the hook eye (17c) or lower contactor (17b) of the fuse holder (17); a lifting shaft (120) that is supported to be raised to a certain height by a first pin (130) while penetrating a shaft support portion (116) formed on one side of the lower portion of the body (110); a rod connection portion (140) that is connected to the lower portion of the lifting shaft (120) by a second pin (132) to be connected to the shaft; and a rotating body (160) whose upper portion is connected to the upper portion of the lifting shaft (120) by a third pin (134) and whose lower portion is fitted to the upper outer circumference of the shaft support portion (116) to be supported to be raised. An operating fitting of a fuse holder of a cutout switch having an L-shaped hanger hook portion, comprising a spring (150) positioned between the upper part of the shaft support portion (116) and the lower part of the rotating body (160), wherein the body (110) is T-shaped, and an L-shaped hanger hook portion (114) is formed on the lower side of the body (110), wherein the hanger hook portion (114) is formed in a curved shape to serve to easily hang and move wires or branches, and wherein the rod connection portion (140) is connected to the lower part of the lifting shaft (120) by the second pin (132) so as to be detachably connected to the upper end of the rod, and wherein the second pin (132) is coupled to horizontally penetrate the upper shaft hole (142) of the rod connection portion (140) and the lower connection portion of the lifting shaft (120).

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