阅读说明：本技术 一种小型隔离开关 (Small-size isolator ) 是由 丁国发 石林勇 于 2021-09-08 设计创作，主要内容包括：本发明涉及一种小型隔离开关,包括壳体、操作机构、动触头、静触头,所述的操作机构包括转动设置在壳体上的手柄、滑动设置在壳体内的推块,所述的动触头联动设置在推块的一端上,且动触头与壳体之间设置有弹簧,所述的手柄上设置有与推块相配合的凸轮部,所述的推块的另一端上具有与凸轮部相配合的弧形凸起部,所述的凸轮部随手柄动作且可抵触在弧形凸起部上,且构成推块与手柄的联动配合。本发明具有结构简单、性能稳定可靠、装配不便捷、高分断的优点。(The invention relates to a small-sized isolating switch, which comprises a shell, an operating mechanism, a moving contact and a fixed contact, wherein the operating mechanism comprises a handle rotationally arranged on the shell and a push block slidably arranged in the shell, the moving contact is arranged on one end of the push block in a linkage manner, a spring is arranged between the moving contact and the shell, a cam part matched with the push block is arranged on the handle, an arc-shaped convex part matched with the cam part is arranged on the other end of the push block, and the cam part acts along with the handle and can be abutted against the arc-shaped convex part to form linkage matching of the push block and the handle. The invention has the advantages of simple structure, stable and reliable performance, inconvenient assembly and high breaking capacity.)

1. The utility model provides a small-size isolator, includes casing, operating device, moving contact, static contact, its characterized in that: the operating mechanism comprises a handle rotationally arranged on the shell and a push block slidably arranged in the shell, the moving contact is arranged at one end of the push block in a linkage manner, a spring is arranged between the moving contact and the shell, a cam part matched with the push block is arranged on the handle, an arc-shaped protruding part matched with the cam part is arranged at the other end of the push block, the cam part acts along with the handle and can be abutted against the arc-shaped protruding part, and linkage matching of the push block and the handle is formed.

2. The miniature disconnector of claim 1, wherein: the shell comprises a base and an upper cover, the upper cover is arranged on the base, sliding grooves are respectively formed in the inner walls of the base and the upper cover corresponding to the push blocks, two sides of each push block are clamped in the sliding grooves of the base and the upper cover respectively, and the push blocks are in sliding connection and matching with the base and the upper cover.

3. The miniature disconnector of claim 2, wherein: the inner walls of the base and the upper cover are respectively provided with a clamping groove corresponding to two sides of the static contact, and two sides of the static contact are respectively clamped in the clamping grooves of the base and the upper cover to form clamping matching of the static contact, the base and the upper cover.

4. A miniature disconnector according to claim 1 or 2, characterized in that: one end of the push block is provided with a positioning groove, and the middle part of the moving contact is clamped in the positioning groove and forms the limit matching of the moving contact and the push block.

5. A miniature disconnector according to claim 1 or 2, characterized in that: one end of the static contact is provided with a wiring part extending towards the wiring terminal, the wiring part is inserted in the wiring terminal and forms clamping fit of the static contact and the wiring terminal.

6. A miniature disconnector according to claim 1 or 2, characterized in that: the casing in correspond ejector pad one side department and rotate and be provided with divide-shut brake indicator, divide-shut brake indicator's one end sign has, be provided with separating brake pilot mark, combined floodgate pilot mark on this sign respectively, the base on correspond the sign department and be provided with the pilot hole, divide-shut brake indicator's the other end be provided with the arc guiding hole, one side of ejector pad on correspond arc guiding hole department and be provided with the driving lever, the driving lever alternate and alternate in the arc guiding hole, the driving lever along with the ejector pad action and can be at the reciprocal action in the arc guiding hole, and can constitute the linkage cooperation of ejector pad and divide-shut brake indicator.

7. The miniature disconnector of claim 6, wherein: the base in correspond divide-shut brake indicator department and be provided with the pivot, the middle part of divide-shut brake indicator on be provided with the through-hole, the one end of pivot pass the through-hole and block in the locating hole in the upper cover.

Technical Field

The invention particularly relates to a small-sized isolating switch.

Background

At present, the small-sized isolating switch is suitable for a power distribution and control loop with the alternating current of 50Hz or 60Hz and the rated working voltage of 220/380V or below, is mainly used as a main switch of a terminal electrical appliance, can also be used for controlling various heterogeneous motors, small-power electrical appliances, illumination and the like, and is widely applied to places such as industrial and mining enterprises, high-rise buildings, businesses, families and the like. However, the existing small-sized isolating switch has unreasonable structural design, slow switching-on and switching-off speed and easy fusion welding phenomenon, and the structural design of the small-sized isolating switch is complex and cannot realize automatic assembly, so that the small-sized isolating switch has the defects of unstable performance, inconvenient assembly and weak breaking capacity.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a small isolating switch which is simple in structure, stable and reliable in performance, inconvenient to assemble and high in breaking capacity.

In order to achieve the purpose, the invention adopts a small-sized isolating switch which comprises a shell, an operating mechanism, a moving contact and a static contact, wherein the operating mechanism comprises a handle rotationally arranged on the shell and a push block slidably arranged in the shell, the moving contact is arranged at one end of the push block in a linkage manner, a spring is arranged between the moving contact and the shell, a cam part matched with the push block is arranged on the handle, an arc-shaped bulge part matched with the cam part is arranged at the other end of the push block, and the cam part acts along with the handle and can be abutted against the arc-shaped bulge part to form linkage matching of the push block and the handle.

The beneficial effect of above-mentioned structure is: the operating mechanism of the small-sized isolating switch adopts a cam type driving structure design, the structure design is simple, the transmission is more stable, and the breaking capacity is stronger. And the moving contact is arranged below the static contact, the small-sized isolating switch with the structural design is not easy to generate fusion welding phenomenon, a spring is arranged between the moving contact and the shell, the spring can increase the pressure of the moving contact and can also play a role in resetting the push block, so that the structure of an operating mechanism of the traditional small-sized isolating switch is simplified, the transmission efficiency of the small-sized isolating switch is favorably improved, and the breaking capacity of the small-sized isolating switch can be improved. Therefore, the small-sized isolating switch has the advantages of simple structure, stable and reliable performance, inconvenient assembly and high breaking capacity.

Particularly, the shell comprises a base and an upper cover, the upper cover is arranged on the base, sliding grooves are respectively formed in the inner walls of the base and the upper cover corresponding to the push blocks, two sides of each push block are respectively clamped in the sliding grooves of the base and the upper cover, and the push blocks are in sliding connection and matching with the base and the upper cover. The ejector pad block is in the sliding groove of base and upper cover to the assembly of base, upper cover, ejector pad of being convenient for, the assembly is more convenient, and the small-size isolator of this structural design, it is changeed in realizing automatic assembly.

Particularly, the inner walls of the base and the upper cover are respectively provided with a clamping groove corresponding to two sides of the static contact, and two sides of the static contact are respectively clamped in the clamping grooves of the base and the upper cover to form clamping matching of the static contact and the base and the upper cover. The static contact block is in the draw-in groove of base, upper cover to the assembly of base, upper cover, static contact is convenient for, and the assembly is more convenient, and the small-size isolator of this structural design, the automatic assembly of the static contact of change realization.

Particularly, a positioning groove is formed in one end of the push block, and the middle of the moving contact is clamped in the positioning groove and forms limiting fit of the moving contact and the push block. The moving contact block is on the ejector pad to the assembly of moving contact and ejector pad of being convenient for, the assembly is more convenient.

Particularly, one end of the static contact is provided with a wiring part extending towards the wiring terminal, the wiring part is inserted in the wiring terminal, and the static contact and the wiring terminal are in clamping fit. The static contact block is in binding post, and the static contact is integrated modularization with binding post to can realize this small-size isolator's modularized assembly, be favorable to improving this small-size isolator's assembly efficiency.

Particularly, the casing in correspond ejector pad one side department and rotate and be provided with divide-shut brake indicator, the one end of divide-shut brake indicator sign have the sign, be provided with separating brake pilot mark, combined floodgate pilot mark on this sign respectively, the base on correspond sign department and be provided with the pilot hole, the other end of divide-shut brake indicator be provided with the arc guiding hole, one side of ejector pad on correspond arc guiding hole department and be provided with the driving lever, the driving lever alternate in the arc guiding hole, the driving lever along with the ejector pad action and can be at the reciprocal action in the arc guiding hole, and can constitute the linkage cooperation of ejector pad and divide-shut brake indicator. The opening and closing indicating piece can act along with the push block, so that opening and closing indication of the small isolating switch can be realized, and the safety performance of the small isolating switch can be improved.

Particularly, a rotating shaft is arranged in the base corresponding to the opening and closing indicating piece, a through hole is formed in the middle of the opening and closing indicating piece, and one end of the rotating shaft penetrates through the through hole and is clamped in a positioning hole in the upper cover. Divide-shut brake indicator block is in the pivot of base to be convenient for divide-shut brake indicator and the assembly of base, it is more convenient to assemble, is favorable to improving this small-size isolator's assembly efficiency.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an internal structural view of the embodiment of the present invention.

Fig. 3 is a perspective view of a base according to an embodiment of the invention.

Fig. 4 is a perspective view of the upper cover according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 4, an embodiment of the present invention is a miniature isolating switch, including a housing 10, an operating mechanism 20, a movable contact 11, and a stationary contact 12, where the operating mechanism 20 includes a handle 21 rotatably disposed on the housing 10, and a push block 22 slidably disposed in the housing 10, the movable contact 11 is disposed at one end of the push block 22 in a linkage manner, a spring 13 is disposed between the movable contact 11 and the housing 10, a cam portion 211 matched with the push block 22 is disposed on the handle 21, an arc-shaped protrusion 221 matched with the cam portion 211 is disposed at the other end of the push block 22, and the cam portion 211 moves along with the handle 21 and can abut against the arc-shaped protrusion 221, so as to form a linkage fit between the push block 22 and the handle 21. The shell 10 comprises a base 101 and an upper cover 102, the upper cover 102 is arranged on the base 101, sliding grooves 1000 are respectively arranged on the inner walls of the base 101 and the upper cover 102 corresponding to the push block 22, two sides of the push block 22 are respectively clamped in the sliding grooves 100 of the base 101 and the upper cover 102, and the push block 22 is in sliding connection and matching with the base 101 and the upper cover 102. The ejector pad block is in the sliding groove of base and upper cover to the assembly of base, upper cover, ejector pad of being convenient for, the assembly is more convenient, and the small-size isolator of this structural design, it is changeed in realizing automatic assembly. The inner walls of the base 101 and the upper cover 102 are respectively provided with a clamping groove 1001 corresponding to two sides of the static contact 12, two sides of the static contact 12 are respectively clamped in the clamping grooves 1001 of the base 101 and the upper cover 102, and the static contact 12 is clamped and matched with the base 101 and the upper cover 102. The static contact block is in the draw-in groove of base, upper cover to the assembly of base, upper cover, static contact is convenient for, and the assembly is more convenient, and the small-size isolator of this structural design, the automatic assembly of the static contact of change realization. A positioning groove 222 is arranged at one end of the push block 22, and the middle part of the moving contact 11 is clamped in the positioning groove 222, so that the moving contact 11 is in limit fit with the push block 22. The moving contact block is on the ejector pad to the assembly of moving contact and ejector pad of being convenient for, the assembly is more convenient. One end of the static contact 12 is provided with a wire connecting portion 121 extending towards the direction of the wire connecting terminal 14, and the wire connecting portion 121 is inserted into the wire connecting terminal 14 and forms a clamping fit between the static contact 12 and the wire connecting terminal 14. The static contact block is in binding post, and the static contact is integrated modularization with binding post to can realize this small-size isolator's modularized assembly, be favorable to improving this small-size isolator's assembly efficiency.

As shown in fig. 2, 3 and 4, the inside of the housing 10 corresponding to one side of the push block 22 is rotatably provided with a switching-on/off indicator 15, one end of the switching-on/off indicator 15 is provided with a sign 151, the sign 151 is provided with a switching-off indicator 152 and a switching-on indicator 153, the base 101 is provided with an indicator hole 1002 corresponding to the sign 151, the other end of the switching-on/off indicator 15 is provided with an arc-shaped guide hole 154, one side of the push block 22 is provided with a shift lever 223 corresponding to the arc-shaped guide hole 154, the shift lever 223 is inserted into the arc-shaped guide hole 154, the shift lever 223 moves along with the push block 22 and can reciprocate in the arc-shaped guide hole 154, and can form linkage matching of the push block and the switching-on/off indicator. The opening and closing indicating piece can act along with the push block, so that opening and closing indication of the small isolating switch can be realized, and the safety performance of the small isolating switch can be improved. A rotating shaft 1003 is arranged in the base 101 corresponding to the opening and closing indicating member 15, a through hole 155 is arranged in the middle of the opening and closing indicating member 15, and one end of the rotating shaft 1003 penetrates through the through hole 155 and is clamped in a positioning hole 1004 in the upper cover 102. Divide-shut brake indicator block is in the pivot of base to be convenient for divide-shut brake indicator and the assembly of base, it is more convenient to assemble, is favorable to improving this small-size isolator's assembly efficiency.

The operating mechanism of the small-sized isolating switch adopts a cam type driving structure design, the structure design is simple, the transmission is more stable, and the breaking capacity is stronger. And the moving contact is arranged below the static contact, the small-sized isolating switch with the structural design is not easy to generate fusion welding phenomenon, a spring is arranged between the moving contact and the shell, the spring can increase the pressure of the moving contact and can also play a role in resetting the push block, so that the structure of an operating mechanism of the traditional small-sized isolating switch is simplified, the transmission efficiency of the small-sized isolating switch is favorably improved, and the breaking capacity of the small-sized isolating switch can be improved. Therefore, the small-sized isolating switch has the advantages of simple structure, stable and reliable performance, inconvenient assembly and high breaking capacity.