JPH0730439U - Circuit breaker terminal cover - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a terminal cover that can be sealed without using a special sealing screw and that prevents the seal from being accidentally released. [Structure] A screw insertion hole 2 for inserting a screw 5 for fixing a terminal cover 1 to a terminal portion of a circuit breaker is provided, and a sealing wire 6 for sealing the screw 5 is inserted in the vicinity of the screw insertion hole 2 so as to pass therethrough. A rib 3 having a hole 4 is provided, a screw mounting hole is provided at a position facing the screw insertion hole 2 when the terminal cover 1 is attached to the terminal portion of the circuit breaker, and the screw is inserted through the screw insertion hole of the terminal cover. The circuit breaker is attached to the screw mounting hole of the terminal portion, and the sealing wire 6 is inserted into the through hole 4 of the rib 3 for sealing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a terminal cover sealing structure for covering a terminal portion of a circuit breaker.

[0002]

[Prior art]

 As a structure of a terminal cover for covering the terminal portion of a conventional circuit breaker, for example, there is one described in Japanese Utility Model Laid-Open No. 3-106650. As shown in FIG. 5, this device has a sealing screw insertion hole in the terminal portion of the circuit breaker, and the sealing wire is inserted into the terminal cover so that the sealing wire can be inserted from an appropriate position on the side plate surface to another position on the side plate surface. Provide a sealing screw insertion hole at a position facing the hole and the sealing screw insertion hole. As shown in Fig. 6, the sealing screw has a sealing hole in the head. Insert the sealing screw into the sealing screw insertion hole and the sealing screw insertion hole, and insert it into the sealing screw sealing hole and the terminal cover sealing wire insertion hole. It was sealed by inserting the seal line.

[0003]

[Problems to be solved by the device]

 However, according to the above-mentioned conventional technique, the sealing screw cannot be sealed unless a special screw having a through hole in the head is used, and the use of such a special sealing screw leads to an increase in cost. .

In addition, after the sealing wire is inserted into the sealing hole provided in the head portion of the sealing screw and the sealing wire insertion hole provided in the terminal cover to seal the sealing screw, the sealing screw is loosened with a tool or the like by mistake. If so, there is a risk that the seal of the terminal cover may be released by breaking the rib of the terminal cover.

[0005]

[Means for Solving the Problems]

 Therefore, the present invention aims to provide a terminal cover that can be sealed without using a special sealing screw and that prevents the seal from being accidentally released. Provide a screw insertion hole for inserting a screw for fixing, and a rib with a through hole near the screw insertion hole through which a sealing wire for sealing the screw can be inserted, and a terminal cover on the terminal part of the circuit breaker. When installing, provide a screw mounting hole at a position facing the screw insertion hole, and attach the screw to the screw mounting hole of the terminal part of the circuit breaker through the screw insertion hole of the terminal cover. It is to insert the seal through the through hole of the rib of the terminal cover.

[Action]

A terminal cover according to the present invention covers a terminal portion of a circuit breaker, and a screw is screwed from a screw insertion hole provided in the terminal cover to a screw mounting hole provided in the terminal portion of the circuit breaker. When inserting and sealing, insert the sealing wire into the rib provided near the screw insertion hole, and cover the screw with the sealing wire so that the screw cannot be touched with a tool.

[0007]

【Example】

 An embodiment of the structure of the terminal cover according to the present invention will be described with reference to the accompanying drawings of FIGS.

As shown in FIG. 1, the terminal cover 1 according to the present invention is provided with a screw insertion hole 2. Two ribs 3 are provided around the screw insertion hole 2 so as to surround the screw insertion hole 2, and through holes 4 are formed in each rib 3 as shown in FIG.

The terminal cover 1 is attached to the terminal portion of the circuit breaker, and the screw 5 is provided from the screw insertion hole 2 provided in the terminal cover 1 to the screw mounting hole provided in the terminal portion of the circuit breaker. (Not shown).

In the case of sealing, the sealing wire 6 is inserted into the through hole 4 of the rib 3 so that the sealing wire 6 passes over the screw 5 so that a tool or the like does not touch the screw 5. So that it cannot be released.

FIG. 3 is an explanatory view showing a second embodiment of the terminal cover according to the present invention, in which a cylindrical rib 7 is provided so as to surround the screw insertion hole 2 of the terminal cover 1. Sealing wire insertion holes 8 are formed at two positions on the side surface of the rib 7 at positions facing each other. In the case of sealing, the sealing wire 6 is inserted into the sealing wire insertion hole 8 of the rib 7 so that the sealing wire 6 covers the screw hole of the screw 5 so that a tool or the like does not touch the screw hole.

As a third embodiment of the terminal cover according to the present invention, as shown in FIG. 4, a rib 10 having a through hole 9 is provided in the vicinity of the screw insertion hole 2 of the terminal cover 1 and the terminal cover is provided. The end portion is provided with a sealing wire insertion hole 11 through which a sealing wire can be inserted from one side surface to the other side surface. When sealing, insert a sealing wire into the through hole 9 and the sealing wire insertion hole 11 provided in the rib 10, and screw the terminal cover 1 to the terminal part of the circuit breaker with the sealing wire. Cover the screw holes of to prevent tools from touching the screws.

[0013]

[Effect of device]

 As described above, in the structure of the terminal cover according to the present invention, the terminal cover is provided with the screw insertion hole, and the rib having the through hole through which the sealing wire can be inserted is provided in the vicinity of the screw insertion hole. Since the screw is covered with the above-mentioned sealing wire for sealing, it is not necessary to use a special sealing screw at the time of sealing, and it is possible to reduce the cost and the screw included in the package. If you lose it, you can use a commercially available screw.

Further, since the screw hole is covered and the screw is sealed so that the tool does not touch the screw, the screw is prevented from being accidentally removed.

[Brief description of drawings]

FIG. 1 is an explanatory view of a first embodiment of a terminal cover according to the present invention.

FIG. 2 is a side view of the terminal cover shown in FIG.

FIG. 3 is an explanatory view of a second embodiment of the terminal cover according to the present invention.

FIG. 4 is an explanatory view of a third embodiment of the terminal cover according to the present invention.

FIG. 5 is a plan view showing a conventional terminal cover and a sealing method.

FIG. 6 is a side view of a conventional sealing screw.

[Explanation of symbols]

1 ... Terminal cover, 2 ... Screw insertion hole, 3 ... Rib, 4 ... Through hole, 5 ... Screw, 6 ... Sealing wire,
7 ... Rib, 8 ... Sealing wire insertion hole, 9 ... Through hole, 10 ... Rib, 11 ... Sealing wire insertion hole.

Claims (1)

[Scope of utility model registration request] 1. A terminal cover for covering a terminal portion of a circuit breaker, wherein a screw insertion hole for inserting a screw for fixing the terminal cover to the terminal portion is provided, and the screw is provided in the vicinity of the screw insertion hole. A rib having a through hole through which a sealing wire to be sealed can be inserted is provided, and a screw mounting hole is provided at a position of the terminal portion of the circuit breaker facing the screw insertion hole when the terminal cover is mounted, Is attached to the screw mounting hole of the terminal portion of the circuit breaker through the screw insertion hole of the terminal cover, and in this state, the sealing wire is inserted into the through hole of the rib of the terminal cover to seal. Terminal cover to be used.