CN205282415U

CN205282415U - Breaker

Info

Publication number: CN205282415U
Application number: CN201521132791.XU
Authority: CN
Inventors: 朱诚; 周敏琛; 管瑞良
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-06-01
Anticipated expiration: 2025-12-31

Abstract

The utility model provides a breaker, belongs to the low -voltage electrical equipment field. It includes operating device, base, bottom plate and mounting screws, and operating device contains the curb plate, and the curb plate sets up the screw hole at the front end towards the base, curb plate place plane with the enveloping surface of screw hole crossing, mounting screws passes and twists threaded hole behind the base for operating device forms fixed connection with the base. Structure through operating device to breaker and base is improved, can the make full use of space for the contact holds chamber and explosion chamber, and to hold the chamber big as far as possible, and occupation space is as far as possible little for the fastener, and side direction stress that the curb plate installation department that can by a wide margin reduce operating device simultaneously received improves its mechanical durability.

Description

A kind of isolating switch

Technical field

The utility model belongs to low voltage electrical apparatus technology field, is specifically related to a kind of isolating switch.

Background technology

In recent years, Chinese national economy develop rapidly, low pressure power transmission and distribution capacity constantly increased so that the demand of frame-type circuit breaker is also risen by all trades and professions year by year. Frame-type circuit breaker has irreplaceable effect in distribution network; it is as base components main in power system; main effect in circuit is distribution electric energy, and to the circuit at distribution networking and electrical equipment transshipping, short-circuit, under-voltage and ground fault etc. time protect.

Available frame formula isolating switch, the connecting structure of the side plate of its operating mechanism and pedestal and base plate is as shown in Figure 1 and Figure 2. Circuit breaker operation mechanism offers circular hole 1121 on the flanging 112 of pair of side plates 11, and the muscle 21 corresponding to circular hole 1121 position of the pedestal 2 of isolating switch offers heavy hole 212, it is inserted with inserts 5 in heavy hole 212, then the first screw 6 is screwed into the threaded hole of inserts 5 from the front of isolating switch after the circular hole 1121 of pair of side plates 11, thus the pair of side plates 11 of operating mechanism is fixed on the pedestal 2 of isolating switch, then from the back side of isolating switch with the 2nd screw 7, base plate 3 is fixed to the pedestal 2 of isolating switch again. Along with isolating switch is constantly to the deep development in miniaturization, high-performance direction, on the one hand, it is necessary to make full use of space so that contact container cavity and arc suppressing transformer container cavity are big as far as possible, and it is little as far as possible that fastening piece takies space; On the other hand, the installation structure to operating mechanism is needed to optimize further, reduce disadvantageous effect, to obtain better mechanical life, the side plate of the operating mechanism of original mechanism, after bending, is installed at bending part, bending part is made to be subject to bigger lateral stress, affecting the mechanical life of operating mechanism, therefore existing mechanism can not take into account the requirement of above two aspects, also exists and improves space.

In view of above-mentioned prior art, it is necessary to the operating mechanism of existing isolating switch and the connecting structure of pedestal and base plate being improved, for this reason, the applicant has done useful design, and technical scheme described below produces under this background.

Summary of the invention

The purpose of this utility model is to provide a kind of isolating switch, by the operating mechanism of isolating switch and the structure of pedestal are improved, space can be made full use of, make contact container cavity and arc suppressing transformer container cavity big as far as possible, it is little as far as possible that fastening piece takies space, can significantly reduce the lateral stress that the side plate installation portion of operating mechanism is subject to, it is to increase its mechanical life simultaneously.

The purpose of this utility model reaches like this, a kind of isolating switch, comprise operating mechanism, pedestal, base plate and screw is installed, it is characterized in that: described operating mechanism comprises side plate, described side plate is provided with threaded hole in the front end towards pedestal, described side plate place plane is crossing with the enveloping surface of described threaded hole, and described installation screw is screwed in threaded hole after pedestal so that operating mechanism and pedestal form a fixed connection.

In a specific embodiment of the present utility model, the center axis of described threaded hole is positioned at side plate institute in the plane.

In another specific embodiment of the present utility model, it is one right that the quantity of described side plate has, and upper end and the lower end of every side plate in height direction is respectively arranged with threaded hole.

In another specific embodiment of the present utility model, the pedestal muscle of described pedestal is offered the pedestal through hole installed for coordinating with threaded hole, described installation screw is screwed in threaded hole after pedestal through hole so that operating mechanism and pedestal form a fixed connection.

In another specific embodiment of the present utility model, the pedestal muscle of described pedestal is offered the pedestal through hole installed for coordinating with threaded hole, described base plate is provided with bottom hole, described installation screw is screwed in threaded hole successively after bottom hole and pedestal through hole, and base plate, pedestal and operating mechanism are formed a fixed connection.

Also have in a specific embodiment of the present utility model, described threaded hole is arranged on by side plate on the connection section extended to form on the direction of pedestal, described pedestal offers installation portion in the side of oriented manipulation mechanism and corresponding connection parts, and the front end of described connection section is plugged in installation portion.

In an of the present utility model and then specific embodiment, described installation portion comprises installation groove, described upper installation groove coordinates installation with the connection section being positioned at side plate upper end, upper installation groove forms protruding container cavity in the middle part horizontal expansion in height direction, described connection section forms convex part on two side faces, and described convex part is suitable with protruding container cavity.

More of the present utility model and in a specific embodiment, described installation portion also comprises lower installation chamber, and described lower installation chamber is arranged on the pedestal muscle of base bottom and is configured to L-shaped, and lower installation chamber coordinates installation with the connection section being positioned at the lower end of side plate.

In an again of the present utility model and then specific embodiment, described side plate forms lug boss on opposite sides, described lug boss is by side plate carrying out punching press and integrated, the inner side-wall of lug boss is circular arc and is provided with and the screw thread installing screw adaptation, the threaded hole described in raised portion fits formation on two sides, the lug boss on two sides is crisscross arranged.

Of the present utility model again more and in a specific embodiment, described side plate is formed with spiral shell pipe container cavity in the front end of connection section, in described spiral shell pipe container cavity, welding is provided with spiral shell pipe, it is provided with and the threaded hole installing screw adaptation in described spiral shell pipe.

In more of the present utility model and then specific embodiment, described side plate forms lug boss in one of them side of two sides by punching press, it is provided with splicing plate by welding or rivet in another side, splicing plate is provided with the splicing plate salient with raised portion fits, the inner side-wall of lug boss and splicing plate salient is configured to circular arc and is provided with and the screw thread installing screw fit, and both coordinate the threaded hole described in formation.

The utility model is owing to have employed said structure, and compared with prior art, the useful effect having is: the muscle of pedestal can do narrow further, makes space that breaker contact system and arc suppressing transformer have an amplification to improve performance; Side plate place plane is crossing with threaded hole so that the lateral stress suffered by side plate installation portion reduces, and is not easily out of shape.

Accompanying drawing explanation

Fig. 1 is existing breaker structure schematic diagram.

Fig. 2 is existing breaker structure sectional view.

Fig. 3 is the decomposing schematic representation of isolating switch described in the utility model.

Fig. 4 is the pedestal front view of isolating switch described in the utility model.

Fig. 5 is the overall schematic of isolating switch described in the utility model.

Fig. 6 is the sectional view of isolating switch described in the utility model.

Fig. 7 is the location diagram of threaded hole described in the utility model and side plate.

Fig. 8 is the structural representation of a side of the connection section in the utility model one embodiment.

Fig. 9 is the structural representation of another side of the connection section described in Fig. 8.

Figure 10 is the structural representation of the connection section in another embodiment of the utility model.

Figure 11 is the STRUCTURE DECOMPOSITION schematic diagram of the connection section described in Figure 10.

Figure 12 is the structural representation of the connection section in the utility model another embodiment.

Figure 13 is the STRUCTURE DECOMPOSITION schematic diagram of the connection section described in Figure 12.

In figure: 1. operating mechanism, 11. side plates, 111. connection sections, 1111. threaded holes, footpath, 11112 threaded hole external diameters, 1112. lug bosses, 1113. spiral shell pipe container cavities, 112. flangings, 1121. circular holes at the bottom of 11111 threaded holes; 2. pedestal, 21. pedestal muscles, 211. pedestal through holes, groove, 2211. protruding container cavities are installed by 212. heavy hole, 22. installation portions, 221., 222. times chambeies are installed; 3. base plate, 31. base plate muscles, 311. bottom holes; 4. screw is installed; 5. inserts; 6. the first screw; 7. the 2nd screw; 8, spiral shell pipe; 9, plate, 91 splicing plate salients are spliced.

Embodiment

Embodiment of the present utility model will be described by applicant below by reference to the accompanying drawings in detail; but the description of embodiment is not the restriction to technical scheme by applicant, any changing in the form rather than substance according to the utility model design all should be considered as protection domain of the present utility model.

Refer to Fig. 3��Fig. 7, a kind of isolating switch, comprise operating mechanism 1, pedestal 2, base plate 3 and screw 4 is installed, described pedestal 2 coordinates installation with base plate 3, form the body of isolating switch, wherein the pedestal muscle 21 of pedestal 2 coordinates with the base plate muscle 31 of base plate 3, and body interior is partitioned into several container cavities, is respectively used to hold contact apparatus. Operating mechanism 1 is installed on the base 2, and is connected with contact apparatus, for manipulating contact apparatus. Operating mechanism 1 comprises side plate 11, and described side plate 11 arranges threaded hole 1111 in the front end near pedestal 2, installs screw 4 and is screwed in threaded hole 1111 after pedestal 2 so that operating mechanism 1 and pedestal 2 form a fixed connection. Wherein, side plate 11 place plane is crossing with the enveloping surface of described threaded hole 1111, and as shown in Figure 7, threaded hole 1111 has footpath, the end 11111 and external diameter 11112, and side plate 11 place plane passes the disc that the external diameter 11112 of threaded hole 1111 surrounds. It is preferably the center of the disc that side plate 11 place plane surrounds through the external diameter 11112 of threaded hole 1111 herein.

It is one right that the quantity of described side plate 11 has, and upper end and the lower end of every side plate 11 in height direction is formed with threaded hole 1111 respectively. In the present embodiment, the two ends up and down of side plate 11 extend to form connection section 111 respectively to the direction of pedestal 2, and corresponding pedestal 2 is provided with installation portion 22, and described installation portion 22 offers upper installation groove 221 towards the connection section 111 of side plate 11 and corresponding side plate 11 upper end. Described upper installation groove 221 coordinates with corresponding connection section 111 to be installed, and upper installation groove 221 forms protruding container cavity 2211 in the middle part horizontal expansion in height direction. The embodiment best here is, the pedestal muscle 21 of pedestal 2 offers the pedestal through hole 211 installed for coordinating with threaded hole 1111 in the position of corresponding connection parts 111, described installation screw 4 is screwed in threaded hole 1111 after pedestal through hole 211 so that pedestal 2 and operating mechanism 1 form a fixed connection; Further, base plate 3 is provided with the bottom hole 311 coordinating with threaded hole 1111 and pedestal through hole 211 and installing on the base plate muscle 31 corresponding with pedestal muscle 21, described installation screw 4 is screwed in threaded hole 1111 successively after bottom hole 311 and pedestal through hole 211, and base plate 3, pedestal 2 and operating mechanism 1 are formed a fixed connection. Described installation portion 22 also comprises lower installation chamber 222, described lower installation chamber 222 is arranged on the pedestal muscle 21 bottom pedestal 2 and is configured to L-shaped, lower installation chamber 222 coordinates installation with the connection section 111 being positioned at side plate 11 times ends, then after pedestal through hole 211, it is screwed into threaded hole 1111 by installing screw 4 equally, pedestal 2 and operating mechanism 1 are formed a fixed connection, further, installing screw 4 can be screwed in threaded hole 1111 successively after bottom hole 311 and pedestal through hole 211 so that base plate 3, pedestal 2 and operating mechanism 1 form a fixed connection.

In the present embodiment, side plate 11 place plane is through the center of threaded hole 1111 so that when pedestal 2 is fixedly connected with the side plate 11 of operating mechanism 1, the stress that side plate 11 bears in side direction significantly reduces, thus is not easily out of shape, and extends mechanical life. Certainly, these are only most preferred embodiment, in other specific embodiment, the two ends up and down of side plate 11 are without the need to forming connection section 111, threaded hole 1111 is directly offered at the two ends up and down of side plate 11, also not needing to offer corresponding installation portion 22 on pedestal 2, as long as being screwed into installing screw 4 in the threaded hole 1111 of pedestal 2 outside surface after the pedestal through hole 211 of pedestal 2, namely side plate 11 is without the need to plugging the inside of pedestal 2.

Refer to Fig. 8 and Fig. 9, illustrate the structure of an embodiment of connection section 111. Described connection section 111 respectively forms at least one lug boss 1112 on opposite sides, lug boss 1112 on two sides is crisscross arranged, namely, when only two lug boss 1112, connection section 111 respectively forms a lug boss 1112 on opposite sides, and these two lug bosses 1112 stagger setting on the bearing of trend of side plate 11 towards pedestal 2, namely two lug bosses 1112 in the straight line direction vertical with the face of connection section 111 without intersection point. If when having the lug boss 1112 of three or more than three, the wherein one side of the two sides of connection section 111 arranges two lug bosses 1112 along side plate 11 towards the bearing of trend of pedestal 2, the 3rd lug boss 1112 correspondences being on another side are between these two lug bosses 1112, and namely the lug boss 1112 on connection section 111 two sides staggers setting. The inner side-wall of described lug boss 1112 is circular arc and is provided with and the screw thread installing screw 4 adaptation, the inner side-wall of the lug boss 1112 on two sides coordinates the threaded hole 1111 described in forming, the axis of threaded hole 1111 is identical towards the bearing of trend of pedestal 2 with side plate 11, and lug boss 1112 is directly shaped through punching press by connection section 111. Described lug boss 1112 is the convex part of described connection section 111 two sides, and when installing groove 221 on connection section 111 inserts, lug boss 1112 is contained in described protruding container cavity 2211.

Refer to Figure 10 and Figure 11, illustrate the structure of another embodiment of connection section 111. Described connection section 111 is provided with spiral shell pipe container cavity 1113 in front end, in spiral shell pipe container cavity 1113, welding is provided with spiral shell pipe 8, the threaded hole 1111 being provided with in described spiral shell pipe 8 with installing screw 4 and coordinate. In the present embodiment, described spiral shell pipe 8 is the convex part of described connection section 111 two sides, and when installing groove 221 on connection section 111 inserts, spiral shell pipe 8 is contained in described protruding container cavity 2211.

Refer to Figure 12 and Figure 13, illustrate the structure of another embodiment of connection section 111. Described connection section 111 forms lug boss 1112 by punching press on one of them side of two sides, another side is then provided with splicing plate 9 by welding or rivet, described splicing plate 9 is provided with the splicing plate salient 91 coordinated with lug boss 1112, the inner side-wall of lug boss 1112 and splicing plate salient 91 is configured to circular arc and is provided with and the threaded hole 1111 installed screw 4 and coordinate, and both coordinate the threaded hole 1111 described in formation. In the present embodiment, described lug boss 1112 and splicing plate salient 91 are the convex part of described connection section 111 two sides, when installing groove 221 on connection section 111 inserts, lug boss 1112 and splicing plate salient 91 are contained in described protruding container cavity 2211.

Claims

1.A kind of isolating switch, comprise operating mechanism (1), pedestal (2), base plate (3) and installation screw (4), it is characterized in that: described operating mechanism (1) comprises side plate (11), described side plate (11) is being provided with threaded hole (1111) towards the front end of pedestal (2), described side plate (11) place plane is crossing with the enveloping surface of described threaded hole (1111), described installation screw (4) is screwed in threaded hole (1111) after pedestal (2), operating mechanism (1) and pedestal (2) are formed a fixed connection.

2.A kind of isolating switch according to claim 1, it is characterised in that the center axis of described threaded hole (1111) is positioned at side plate (11) institute in the plane.

3.A kind of isolating switch according to claim 1, it is characterised in that it is one right that the quantity of described side plate (11) has, and upper end and the lower end of every side plate (11) in height direction is respectively arranged with threaded hole (1111).

4.A kind of isolating switch according to claim 1, it is characterized in that the pedestal muscle (21) of described pedestal (2) is offered the pedestal through hole (211) installed for coordinating with threaded hole (1111), described installation screw (4) is screwed in threaded hole (1111) after pedestal through hole (211) so that operating mechanism (1) and pedestal (2) form a fixed connection.

5.A kind of isolating switch according to claim 1, it is characterized in that the pedestal muscle (21) of described pedestal (2) is offered the pedestal through hole (211) installed for coordinating with threaded hole (1111), described base plate (3) is provided with bottom hole (311), described installation screw (4) is screwed in threaded hole (1111) successively after bottom hole (311) and pedestal through hole (211), and base plate (3), pedestal (2) and operating mechanism (1) are formed a fixed connection.

6.A kind of isolating switch according to claim 3, it is characterized in that described threaded hole (1111) is arranged on by side plate (11) on the connection section (111) extended to form on the direction of pedestal (2), described pedestal (2) offers installation portion (22) in the side of oriented manipulation mechanism (1) and corresponding connection parts (111), and the front end of described connection section (111) is plugged in installation portion (22).

7.A kind of isolating switch according to claim 6, it is characterized in that described installation portion (22) comprises installation groove (221), described upper installation groove (221) coordinates installation with the connection section (111) being positioned at side plate (11) upper end, upper installation groove (221) forms protruding container cavity (2211) in the middle part horizontal expansion in height direction, described connection section (111) forms convex part on two side faces, and described convex part is suitable with protruding container cavity (2211).

8.A kind of isolating switch according to claim 6, it is characterized in that described installation portion (22) also comprises lower installation chamber (222), the pedestal muscle (21) that described lower installation chamber (222) is arranged on pedestal (2) bottom above and is configured to L-shaped, and lower installation chamber (222) coordinates installation with the connection section (111) being positioned at side plate (11) lower end.

9.A kind of isolating switch according to claim 1, it is characterized in that described side plate (11) forms lug boss (1112) on opposite sides, described lug boss (1112) is by side plate (11) carrying out punching press and integrated, the inner side-wall of lug boss (1112) is circular arc and is provided with the screw thread adaptive with installing screw (4), lug boss (1112) on two sides coordinates the threaded hole (1111) described in forming, and the lug boss (1112) on two sides is crisscross arranged.

10.A kind of isolating switch according to claim 1, it is characterized in that described side plate (11) is formed with spiral shell pipe container cavity (1113) in the front end of connection section (111), in described spiral shell pipe container cavity (1113), welding is provided with spiral shell pipe (8), in described spiral shell pipe (8), it is provided with the threaded hole (1111) adaptive with installing screw (4).

11.A kind of isolating switch according to claim 1, it is characterized in that described side plate (11) forms lug boss (1112) in one of them side of two sides by punching press, it is provided with splicing plate (9) by welding or rivet in another side, splicing plate (9) is provided with splicing plate salient (91) coordinated with lug boss (1112), the inner side-wall of lug boss (1112) and splicing plate salient (91) is configured to circular arc and is provided with and the screw thread installed screw (4) and coordinate, both coordinate the threaded hole (1111) described in forming��