Three-position isolating switch

Abstract

The utility model discloses a three-position isolating switch. The static contact mainly solves the problems that the static contact of the conventional disconnecting switch is relatively high in material consumption and relatively high in cost. The switch is characterized by further comprising a static contact piece (4), one end of the static contact piece is connected with the wiring assembly, and the other end of the static contact piece is provided with a first contact piece (41) and a second contact piece (42) which are integrally manufactured; the movable contact piece comprises a first movable contact piece arranged opposite to the first contact piece and a second movable contact piece arranged opposite to the second contact piece. According to the three-position isolating switch provided by the utility model, one end of the static contact piece is separated to form two contact pieces, so that materials are saved and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of switchgear, specifically to a three-position disconnect switch. Background Technology

[0002] Disconnect switches are one of the most commonly used electrical appliances in complete sets of equipment such as distribution meter boxes and power distribution systems. They play a role in power isolation in circuits.

[0003] Conventional disconnect switches have a C-shaped stationary contact to form the contact plates at both ends, which requires more manufacturing materials and results in higher costs. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a three-position disconnect switch, which mainly solves the problem that conventional disconnect switches use a lot of material for the stationary contact piece and have a high cost.

[0005] The technical solution of this utility model is as follows:

[0006] A three-position disconnect switch includes a housing, a handle rotatably mounted on the housing, a bracket driven by the handle installed inside the housing, and a movable contact on the bracket.

[0007] A stationary contact piece, one end of which is connected to a wiring assembly, and the other end of which is provided with an integrally formed first contact piece and a second contact piece;

[0008] The movable contact includes a first movable contact disposed opposite to the first contact and a second movable contact disposed opposite to the second contact.

[0009] The wiring assembly includes a frame and bolts, with one end of the stationary contact piece extending into the frame.

[0010] One end of the stationary contact piece is provided with a through hole for a bolt to pass through.

[0011] The housing is provided with at least two positioning bosses, and a positioning groove for fixing the stationary contact piece is provided between the two positioning bosses.

[0012] The housing is also provided with an operating hole, which is positioned opposite to the bolt.

[0013] It also includes a cover for covering the operating hole, the bottom end face of the cover having at least two stops, and the cover having a through hole; it also includes a pin, the pin passing through the through hole to pry open the stops so that the cover cannot be removed.

[0014] The pin has a first lead-sealing hole, the upper end face of the cover has a support, and the support has a second lead-sealing hole opposite to the first lead-sealing hole.

[0015] The stop arm is provided in two parts.

[0016] The first contact piece and the second contact piece are arranged parallel to each other.

[0017] The beneficial effects of this utility model are: This utility model provides a three-position disconnect switch, in which one end of the stationary contact is separated to form two contact pieces, saving materials and reducing costs. Attached Figure Description

[0018] Figure 1 This is a perspective view of one embodiment of the present invention.

[0019] Figure 2 This is a partial perspective view of one embodiment of the present invention.

[0020] Figure 3 This is a partial explosion diagram of one embodiment of the present invention.

[0021] Figure 4 This is a perspective view of the handle according to one embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings. A three-position disconnect switch includes a housing 1, a handle rotatably mounted on the housing, and a bracket 3 driven by the handle installed inside the housing. The bracket is provided with a movable contact piece 31 and a stationary contact piece 4. One end of the stationary contact piece is connected to a wiring assembly, and the other end is provided with an integrally formed first contact piece 41 and a second contact piece 42. The movable contact piece includes a first movable contact piece disposed opposite to the first contact piece and a second movable contact piece disposed opposite to the second contact piece. The first and second contact pieces are integrally bent. The stationary contact piece adopts a structure in which one end is connected to the wiring assembly and the other end directly forms two contact pieces. The original structure used a C-shape, which would have required more material for the lower contact piece. This structure directly uses the upper contact piece separation method, which saves materials and reduces costs. The handle can drive the bracket to rise and fall via a cam, which is existing technology and will not be described in detail. A position slot 21 can be provided on the handle to achieve switching between multiple positions.

[0023] In this embodiment, as shown in the figure, the wiring assembly includes a frame 51 and bolts, with one end of the stationary contact piece extending into the frame. The bolts are used to engage with the frame to achieve wiring, which is existing technology and will not be described further.

[0024] In this embodiment, as shown in the figure, one end of the stationary contact piece is provided with a through hole 43 for a bolt to pass through. The overall structure is relatively compact.

[0025] In this embodiment, as shown in the figure, the housing is provided with at least two positioning bosses 11, and a positioning groove for fixing the stationary contact piece is provided between the two positioning bosses. This makes the installation more stable.

[0026] In this embodiment, as shown in the figure, the housing is also provided with an operating hole 13, which is positioned opposite to the bolt. A screwdriver is inserted into the operating bolt.

[0027] In this embodiment, as shown in the figure, a cover 6 is also included. The cover is used to cover the operating hole. The bottom end face of the cover is provided with at least two retaining arms 61, and the cover is provided with a through hole 62. A pin 63 is also included. The pin passes through the through hole to pry open the retaining arms, preventing the cover from being removed. The retaining arms have a retractable elastic force, so there is no problem when they are installed. When the pin is installed, it pries open the retaining arms, causing them to block the top inner wall of the housing, preventing them from being removed from the mounting hole, thus preventing unauthorized operation.

[0028] In this embodiment, as shown in the figure, the pin has a first lead-sealing hole 631, and the upper end face of the cover has a support. The support has a second lead-sealing hole 621 opposite to the first lead-sealing hole. After installation, it can be fixed by passing a lead wire through the first and second lead-sealing holes.

[0029] In this embodiment, as shown in the figure, the first contact piece and the second contact piece are arranged parallel to each other.

[0030] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A three-position disconnector comprising a housing (1), a handle (2) rotatably mounted on the housing, a bracket (3) mounted in the housing and driven by the handle, and a movable contact (31) provided on the bracket, characterized in that: Also include The static contact (4) is connected with the wiring assembly at one end and is provided with a first contact (41) and a second contact (42) integrally formed at the other end; The moving contact includes a first moving contact arranged opposite to the first contact and a second moving contact arranged opposite to the second contact.

2. A three position disconnector according to claim 1, characterized in that: The wiring assembly includes a frame (51) and a bolt, and the static contact extends into the frame at one end.

3. A three position disconnector according to claim 2, characterised in that: A through hole (43) is arranged on the static contact at one end for the bolt to pass through.

4. A three position disconnector according to claim 3, characterised in that: At least two positioning bosses (11) are arranged in the shell, and a positioning groove for fixing the static contact is arranged between the two positioning bosses.

5. A three position disconnector according to claim 4, characterised in that: An operation hole (13) is further arranged on the shell and is arranged opposite to the bolt.

6. A three position disconnector according to claim 5, characterised in that: A cover (6) is further included for covering the operation hole, and at least two blocking arms (61) are arranged on the bottom end face of the cover, and a through hole (62) is arranged on the cover; a latch (63) is further included, which passes through the through hole to prop open the blocking arms so that the cover cannot be taken out.

7. A three position disconnector according to claim 6, characterised in that: A first lead seal hole (631) is arranged on the latch, and a support is arranged on the upper end face of the cover, and a second lead seal hole (621) is arranged on the support and is arranged opposite to the first lead seal hole.

8. A three position disconnector according to claim 7, characterised in that: The blocking arm is provided with two.

9. A three position disconnector according to claim 7, characterised in that: The first contact and the second contact are arranged parallel to each other.

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