Grounding Board for a Distribution Pole

Abstract

The present invention relates to a grounding plate for a power distribution pole that can prevent disconnection by preventing vertical movement of a clamp that fixes a grounding wire, and has the technical concept of comprising: a support plate coupled to the lower inner circumference of the pole; a fixing tube provided along the upper edge of the support plate and fixed to the pole by bolting; a plurality of coupling grooves formed at predetermined intervals along the upper end of the fixing tube; a support having a guide bushing connected to the central lower part of the support plate to surround and protect the outer circumference of a grounding wire lowered therefrom; a clamp including a clamping boss that fixes the grounding wire lowered from the upper part of the support to guide it to the guide bushing; a clamping tube connected to the outer circumference of the clamping boss by a plurality of spokes and having a ring-shaped locking hook on its inner circumference; and a locking member that is coupled to each of the plurality of coupling grooves to elastically control the locking and unlocking of the locking hook.

Description

Technology Field

[0001] The present invention relates to a grounding plate for a power distribution pole, and more specifically, to a grounding plate for a power distribution pole that prevents wire breakage by preventing the vertical movement of a clamp that fixes a grounding wire. Background Technology

[0002] As is well known, a grounding plate for power distribution poles is a grounding device installed on a pole to ensure safety and reliability in power distribution facilities, and is mainly used to protect people and equipment from electrical abnormalities such as lightning strikes, fault currents, and leakage currents, and to ensure the normal operation of the power system.

[0003] As prior art related to grounding plates for power distribution poles, Korean registered patent No. 10-2539559 (registration date May 30, 2023) 'Grounding plate for power distribution poles' is disclosed.

[0004] The above prior art comprises: a fixed tube that is coupled through a grounding wire insertion hole formed in a utility pole and into which a grounding wire is inserted through an internal hollow portion; a housing that is suspended and fixed to the fixed tube; a grounding clamp that is mounted vertically on the housing and into which the grounding wire is fixed; a lifting guide means that guides the lifting of the grounding clamp; a protective tube that is fixed to the housing so as to be positioned at the bottom of the grounding clamp and into which the grounding wire is inserted vertically; a sensing means that detects the lifting of the grounding clamp together with the grounding wire; and an alarm that indicates the detection result of the sensing means, wherein the essence of the technology is to confirm the movement of the grounding wire through the sensing means.

[0005] However, the above-mentioned conventional technology had a problem in that the grounding clamp moving up and down within the housing could lead to the grounding wire being disconnected.

[0006] In addition, the aforementioned conventional technology involves attaching a fixing tube to a grounding wire insertion hole formed in a utility pole and fixing a housing to this fixing tube; this not only increases the cost of manufacturing the parts but also has the problem of reduced work efficiency because the process of installing the fixing tube, housing, and grounding clamp is complex and time-consuming. Prior art literature

[0007] (0001) Republic of Korea Registered Patent No. 10-2539559 (Registration Date: May 30, 2023) The problem to be solved

[0008] The present invention has been devised to solve the conventional problems described above, and the objective of the present invention is to provide a grounding plate for power distribution poles that prevents wire breakage by blocking the vertical movement of the clamp fixing the grounding wire, and improves workability by allowing the clamp to be installed conveniently. means of solving the problem

[0009] To achieve the above objective, the grounding plate for a power distribution pole according to the present invention comprises: a support plate coupled to the lower inner circumference of the pole; a fixing tube provided along the upper edge of the support plate and fixed to the pole by bolting; a plurality of coupling grooves formed at predetermined intervals along the upper end of the fixing tube; a support having a guide bushing connected to the central lower part of the support plate to surround and protect the outer circumference of a grounding wire lowered therefrom; a clamp including a clamping boss that fixes the grounding wire lowered from the upper part of the support to guide it to the guide bushing; a clamping tube connected to the outer circumference of the clamping boss by a plurality of spokes and having a ring-shaped locking hook on its inner circumference; and a locking member that is coupled to each of the plurality of coupling grooves to elastically control the locking and unlocking of the locking hook.

[0010] The locking member may include a coupling part coupled to a coupling groove of the support, an elastic deformation part connected to the upper end of the coupling part to be elastically deformed and having a catch projection to control the locking of the locking hook, a support part connected to the elastic deformation part by a movable connection part and supported on one surface of the coupling part, and a pressing operating part that operates to elastically deform the elastic deformation part starting from the support part.

[0011] The above elastic deformation part may include an elastic locking part connected to the upper end of the coupling part and having a locking hole formed therein to have the locking projection, and a curved deformation part connected downwardly in a curved manner from the upper end of the elastic locking part and elastically deformed.

[0012] A support portion may be bent at the inner bottom of the above-mentioned catch hole to support the bottom of the above-mentioned clamping tube. Effects of the invention

[0013] According to the present invention implemented by the above solution, the locking member can prevent the vertical movement of the clamp that fixes the grounding wire, thereby preventing disconnection, and also has the effect of improving workability during installation by easily locking the clamp.

[0014] In addition, according to the present invention, since the clamp is released from the locking member while supported by the support member, the clamp can be easily and safely separated. Brief explanation of the drawing

[0015] FIG. 1 is a cross-sectional view showing the overall structure of a grounding plate for a power distribution pole according to an embodiment of the present invention. FIG. 2 is a perspective view showing a support according to an embodiment of the present invention. FIG. 3 is a perspective view showing a portion of a clamp according to an embodiment of the present invention cut open. FIG. 4 is a perspective view showing a locking member according to an embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view and operation diagram showing a clamping packing according to an embodiment of the present invention. FIG. 6 is an operation diagram showing the release state of the locking member in FIG. 1. Specific details for implementing the invention

[0016] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0017] A grounding plate for a power distribution pole according to an embodiment of the present invention includes a support (20), a clamp (30), and a locking member (50).

[0018] The support (20) forms a base that supports the locking member (50).

[0019] As shown in FIG. 1, the support (20) includes a support plate (21) coupled to the lower inner circumference of the utility pole (10), a fixing tube (22) provided along the upper edge of the support plate (21) and fixed to the utility pole (10) by bolting, a plurality of coupling grooves (23) formed at predetermined intervals along the upper circumference of the fixing tube (22), and a guide bushing (24) connected to the central lower part of the support plate (21) to surround and protect the outer circumference of the lowered ground wire (11).

[0020] FIG. 2 is a perspective view showing a support (20).

[0021] The diameter of the support plate (21) is formed to be the same or similar in size to the inner circumference of the main column (10).

[0022] The fixed tube (22) is formed in the shape of a hollow circular tube and is integrally formed on the upper edge of the support plate (21). A plurality of tap holes (22a) are formed at predetermined intervals along the circumference of the fixed tube (22), and a bolt (BT) penetrating the main column (10) is screw-coupled thereto. The tap holes (22a) may be formed in multiple numbers with different heights along the circumference of the fixed tube (22).

[0023] The coupling grooves (23) are formed in a plurality along the circumference of the upper end of the fixed tube (22) at predetermined intervals (preferably equal intervals), and the coupling portion (51) of the locking member (50) described later is fitted and coupled thereto. The coupling grooves (23) may be formed as long linear grooves along the circumferential direction of the fixed tube (22).

[0024] The clamp (30) is positioned on the upper part of the support (20) to secure the ground wire (11).

[0025] As shown in FIG. 1, the clamp (30) includes a clamping boss (31) that fixes the ground wire (11) lowered from the upper part of the support (20) to guide it to the guide bushing (24), and a clamping tube (33) that is connected to the outer circumference of the clamping boss (31) by a plurality of spokes (32) and has a ring-shaped locking hook (33a) on the inner circumference.

[0026] FIG. 3 is a perspective view showing a portion of the clamp (30) cut open.

[0027] The clamping boss (31) is formed to have a vertical bore (31a) through which the grounding wire (11) descending from the upper part of the utility pole (10) passes. A plurality of spokes (32) are radially connected to the outer circumference of the clamping boss (31). A clamping packing (40) made of a synthetic resin containing elastic silicone or the like is attached to the upper end of the clamping boss (31) to elastically grip the outer circumference of the grounding wire (11).

[0028] Here, the clamping packing (40) includes a packing sleeve (41) that elastically grips the outer circumference of the grounding wire (11), and a packing cover (42) that is connected to the outer circumference of the upper end of the clamping sleeve and coupled to the upper outer circumference of the clamping boss (31). The outer circumference of the packing sleeve (41) is formed in a tapered shape such that the diameter gradually decreases toward the bottom, and is elastically press-fitted into the bore (31a) of the clamping boss (31). As shown in FIG. 5, the packing cover (42) includes a cover portion (42a) coupled to the upper end of the clamping boss (31), and a brim portion (42b) provided around the bottom circumference of the cover portion (42a) and fitted to the upper outer circumference of the clamping boss (31). As shown in FIG. 5 (a), the packing cover (42) is bent upward with the part connected to the packing sleeve (41) as the center, so that the packing sleeve (41) with the ground wire (11) inserted can be easily connected to the bore (31a) of the clamping boss (31), and after the packing sleeve (41) is connected to the bore (31a) of the clamping boss (31), the packing cover (42) is bent downward as shown in FIG. 5 (b) so that the packing cover (42) is fitted onto the upper outer circumference of the clamping boss (31).

[0029] The clamping tube (33) is formed in the shape of a hollow circular tube and is supported by a plurality of spokes (32) radially connected to the outer circumference of the clamping boss (31). A locking hook (33a) formed in the shape of a ring is integrally provided in the center of the inner circumference of the clamping tube (33). The clamping tube (33) is formed with a diameter that can move up and down along the inner circumference of the main column (10).

[0030] The locking member (50) is coupled to each of the plurality of coupling grooves (23) formed in the support (20) to elastically control the locking and unlocking of the locking hook (33a).

[0031] As shown in FIGS. 1 and 4, the locking member (50) includes a coupling part (51) coupled to a coupling groove (23) of a support (20), an elastic deformation part (52) connected to the top of the coupling part (51) to be elastically deformed and having a catch (53b) to control the locking of a locking hook (33a), a support part (56) connected to the elastic deformation part (52) by a movable connection part (55) and supported on one side of the coupling part (51), and a pressing operating part (57) that operates to elastically deform the elastic deformation part (52) starting from the support part (56).

[0032] The locking member (50) is manufactured by press forming a metal plate to integrally form a connecting part (51), an elastic deformation part (52), a support part (56), and a pressing operating part (57).

[0033] The connecting part (51) is formed in the shape of a thin, flat piece and is coupled by press fitting into the connecting groove (23) formed at the top of the fixed tube (22) of the support (20).

[0034] The elastic deformation part (52) includes an elastic locking part (53) formed with a locking hole (53a) connected to the upper end of the coupling part (51) to have a locking projection (53b), and a curved deformation part (54) connected downwardly in a curved manner from the upper end of the elastic locking part (53) to be elastically deformed.

[0035] As shown in FIG. 4, a rectangular locking hole (53a) is formed in the center of the elastic locking part (53). A linear locking projection (53b) is formed at the upper inner end of the locking hole (53a) to control the locking and releasing of the coupling hook. At the lower inner end of the locking hole (53a), a support part (53c) is bent so as to protrude outward to support the lower end of the clamping tube (33). As shown in FIG. 6, when releasing the clamp (30) locked to the locking member (50), the support part (53c) bends elastically together with the elastic locking part (53) to simultaneously lift the lower end of the clamping tube (33), thereby allowing the clamp (30) to be easily separated.

[0036] The curved deformation part (54) is formed in an arc shape that curves downward from the top of the elastic locking part (53) toward the center of the support (20).

[0037] And at the bottom of the curved deformation part (54), a movable connecting part (55) is connected at a predetermined distance from the inner surface of the elastic locking part (53) to transmit the movable deformation force generated by the operation of the pressing operating part (57) to the elastic deformation part (52). The movable connecting part (55) is formed in a shape of approximately '>' as shown in FIGS. 1 and FIGS. 4. That is, the movable connecting part (55) includes a movable upper connecting part (55a) connected downwardly at an angle toward the center of the support (20) from the bottom of the curved deformation part (54), and a movable lower connecting part (55b) connected downwardly at an angle toward the coupling part (51) from the bottom of the movable upper connecting part (55a).

[0038] The support member (56) is connected to the curved deformation member (54) by a movable connection member (55) so as to be supported on the inner surface of the coupling member (51). The support member (56) serves as the starting point where a movable deformation force is generated when the pressing operating member (57) is pressed. The support member (56) is formed in a thin, flat, and vertically elongated shape to make surface contact with the inner surface of the coupling member (51), thereby ensuring operational stability when the pressing operating member (57) is pressed.

[0039] The pressing operating part (57) operates to elastically deform the elastic deformation part (52).

[0040] The pressing operating part (57) is connected at an angle from the bottom of the support part (56) toward the center of the support (20). When the pressing operating part (57) is pressed, the elastic deformation part (52) is elastically deformed, thereby releasing the locking state of the locking hook (33a) engaged with the locking projection (53b).

[0041] After placing the clamp (30) so as to be close to the upper part of the locking member (50) configured in this way, and then pressing the clamp (30) downward, the locking hook (33a) of the clamp (30) comes into contact with the curved deformation part (54) of the locking member (50), and the elastic locking part (53) bends in the direction of the ground wire (11).

[0042] Then, the locking hook (33a) enters the locking hole (53a) of the elastic locking part (53) and is caught on the locking projection (53b), so the clamp (30) is locked as shown in FIG. 1.

[0043] Meanwhile, FIG. 6 is an operation diagram showing the release state of the locking member (50).

[0044] When the pressing operation part (57) of the locking member (50) is pressed, the movable deformation force generated starting from the support part (56) is transmitted through the movable connection part (55), causing the curved deformation part (54) and the elastic locking part (53) to bend elastically.

[0045] Then, the locking hook (33a) is separated from the catch (53b), and the clamp (30) is released as shown in FIG. 6.

[0046] At this time, the lower end of the clamping tube (33) is lifted while supported by the support part (53c), so the clamp (30) is easily separated from the locking member (50).

[0047] The present invention is not limited to the forms mentioned in the detailed description above, but should be understood to include all variations, equivalents, and substitutions within the technical concept and scope of the appended claims. Explanation of the symbols

[0048] 10 : Utility pole 11 : Grounding wire 20 : Support 21 : Support plate 22 : Fixed tube 23 : Connecting groove 30 : Clamp 31 : Clamping boss 33a : Locking hook 40 : Clamping packing 50 : Locking member 51 : Connecting part 52: Elastic deformation part 53: Elastic locking part 54: Elastic curved section 55: Movable connection section 56 : Support part 57 : Push operating part

Claims

Claim 1 A grounding plate for a power distribution pole, characterized by comprising: a support plate coupled to the lower inner circumference of the pole; a fixing tube provided along the upper edge of the support plate and fixed to the pole by bolting; a plurality of coupling grooves formed at predetermined intervals along the upper end of the fixing tube; a support having a guide bushing connected to the central lower part of the support plate to surround and protect the outer circumference of a grounding wire lowered therefrom; a clamp including a clamping boss that fixes the grounding wire lowered from the upper part of the support to guide it to the guide bushing; a clamping tube connected to the outer circumference of the clamping boss by a plurality of spokes and having a ring-shaped locking hook on its inner circumference; and a locking member each coupled to the plurality of coupling grooves to elastically control the locking and unlocking of the locking hook. Claim 2 A grounding plate for a power distribution pole according to claim 1, wherein the locking member comprises: a coupling part coupled to a coupling groove of the support; an elastic deformation part connected to the upper end of the coupling part to be elastically deformed and having a catch projection to control the locking of a locking hook; a support part connected to the elastic deformation part by a movable connection part and supported on one surface of the coupling part; and a pressing operating part that operates to elastically deform the elastic deformation part starting from the support part. Claim 3 A grounding plate for a power distribution pole according to claim 2, wherein the elastic deformation part comprises an elastic locking part connected to the upper end of the coupling part and having a locking hole formed therein to have the locking projection, and a curved deformation part connected downwardly curved from the upper end of the elastic locking part and elastically deformed. Claim 4 A grounding plate for a power distribution pole according to claim 3, characterized in that a support portion is bent at the inner lower end of the locking hole to support the lower end of the clamping tube.

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