CN202930293U - Double-throw knife switch - Google Patents
Double-throw knife switch Download PDFInfo
- Publication number
- CN202930293U CN202930293U CN 201220649054 CN201220649054U CN202930293U CN 202930293 U CN202930293 U CN 202930293U CN 201220649054 CN201220649054 CN 201220649054 CN 201220649054 U CN201220649054 U CN 201220649054U CN 202930293 U CN202930293 U CN 202930293U
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- groove
- double
- input
- protective cover
- knife switch
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Abstract
Disclosed is a double-throw knife switch, solving the problem that the conventional double-throw knife switch has some hidden dangers during the installing process as the gap between a fastening screw and an installing screw is small and no isolation measures are adopted. The double-throw knife switch of the utility model comprises a pedestal, an outer shield, and at least three sets of terminals, wherein the terminals are provided with multiple sets of binding posts and fastening screws; the outer shield is provided with a square through groove; the square through groove is internally provided with hollow columns and isolation ribs which separate the internal spaces of the upper and lower through grooves into multiple chambers; the pedestal is provided with an installing hole; and the central hole of the hollow column corresponds to the central hole of the installing hole. According to the utility model, the square through hole, where the upper and lower sets of terminals are located, is internally connected with hollow columns and isolation ribs, so the fastening screws upon different binding posts can be separated. In addition, the hollow columns can be internally provided with installing screws, thereby avoiding the short circuit of the power supply.
Description
Technical field
The utility model relates to a kind of power transmission and distribution switch, relates in particular a kind of double-throw knife switch, belongs to the technical field of power transmission and distribution switch.
Background technology
Original double-throw knife switch, employing arranges on protective cover organizes independently wiring through hole more, trip bolt on the binding post of each terminals is placed in respectively on protective cover in corresponding wiring through hole, adopt this mode, protective cover can be avoided pulling down and just wiring can be realized, fail safe when having improved greatly wiring, and the potential safety hazard can effectively eliminate wiring the time.Double-throw knife switch in the market, the double-throw knife switch of 4P particularly, on the two ends of protective cover and side, groove is set, groove is arranged at the top of each winding line terminals, trip bolt on the binding post of each winding line end is placed in corresponding groove, usually the wiring through hole on protective cover does not have other safeguard procedures, to each binding post Naked is exposed outside, thereby easily causes the generation of the phenomenons such as power supply short circuit.Simultaneously when double-throw knife switch is installed, in order to make on the whole attractive in appearance and easy to process of double-throw knife switch, normally mounting screw being passed upper and lower two grooves is fixedly connected with wall, and make like this trip bolt and mounting screw gap in upper and lower two grooves very little, again without quarantine measures, easily cause power supply short circuit, have potential safety hazard.
Summary of the invention
For the binding post of the double-throw plug-in strip of existing 4P in the solution background technology is outside exposed, and the binding post gap is very little again without quarantine measures, has the problem of potential safety hazard, and the utility model provides a kind of double-throw knife switch.
the technical solution of the utility model is: a kind of double-throw knife switch, comprise insulator foot, protective cover and contact knife, the two ends of described insulator foot are provided with the net electrical input, thermoelectricity input and the load side of being located at the insulator foot centre and being electrically connected to contact knife, described net electrical input, thermoelectricity input and load side are respectively equipped with four binding posts, described protection cover-cap is put on binding post and with insulator foot and is fixedly connected with, described protective cover is at the net electrical input, the thermoelectricity input is equipped with two grooves, be respectively equipped with the cover plate that is complementary with its size on groove, the dismountable lid of each cover plate is put in groove corresponding on protective cover, be provided with dividing plate between described two grooves, every two of four binding posts of described net electrical input and thermoelectricity input are divided into one and are mounted in corresponding groove, be provided with open tubular column between two binding posts of each group of described net electrical input and thermoelectricity input, described insulator foot is provided with installing hole, the centre bore of described open tubular column is corresponding with the centre bore of installing hole.
As a kind of improvement of the present utility model, described each both sides of the edge, groove baseplane are provided with the positive stop that many groups limit cover plate.
Advance a kind of improvement as of the present utility model, on described protective cover, groove one side is provided with open slot, and the opening of this open slot communicates with groove, and described open slot bottom is the inclined plane.
Advance a kind of improvement, described dividing plate, open tubular column and protective cover integrated injection molding as of the present utility model.
The beneficial effects of the utility model are, cover plate covers in the groove of putting on protective cover, thereby can avoid the power supply short circuit that causes outside because binding post is exposed, the setting of described groove inner hollow column, not only two binding posts different in groove can be kept apart, and in open tubular column, mounting screw can be set, avoided binding post, mounting screw because of gap too little generation power supply short circuit phenomenon.And the utility model also has the advantages such as simple in structure, easy to process.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Accompanying drawing 2 is A-A cutaway view in accompanying drawing 1.
Accompanying drawing 3 is the enlarged drawing at I place in accompanying drawing 2.
In figure, 1, insulator foot; 11, installing hole; 2, protective cover; 21, dividing plate; 22, open tubular column; 3, contact knife; 4, load side; 5, binding post; 6, groove; 61, positive stop; 7, cover plate; 8, open slot; 81, inclined-plane.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
shown in figure, a kind of double-throw knife switch, comprise insulator foot 1, protective cover 2 and contact knife 3, the two ends of described insulator foot 1 are provided with the net electrical input, thermoelectricity input and the load side 4 of being located at insulator foot 1 centre and being electrically connected to contact knife 3, described net electrical input, thermoelectricity input and load side 4 are respectively equipped with four binding posts 5, described protective cover 2 lids are put on binding post 5 and with insulator foot 1 and are fixedly connected with, described protective cover 2 is at the net electrical input, the thermoelectricity input is equipped with two grooves 6, groove 6 is generally square three-way groove, can certainly be other shapes.Be respectively equipped with the cover plate 7 that is complementary with its size on groove 6, the dismountable lid of each cover plate 7 is put in groove corresponding on protective cover 26, be provided with dividing plate 21 between described two grooves 6, every two of four binding posts 5 of described net electrical input and thermoelectricity input are divided into one and are mounted in corresponding groove 6, be provided with open tubular column 22 between two binding posts 5 of each group of described net electrical input and thermoelectricity input, described insulator foot 1 is provided with installing hole 11, and the centre bore of described open tubular column 22 is corresponding with the centre bore of installing hole 11.Described dividing plate 21, open tubular column 22 and protective cover 2 integrated injection moldings.Cover plate of the present utility model lid is put in groove on protective cover, thereby can avoid the power supply short circuit that causes outside because binding post is exposed.After wiring work is completed, cover plate is covered in the groove of putting on protective cover, certainly, cover plate also can adopt fixed form to be hinged on protective cover, can reach identical purpose equally, but owing to adopting this mode, it is easy for installation, flexibility is high, and therefore, the execution mode of the present embodiment is preferred implementation.The setting of described groove inner hollow column not only can be kept apart two binding posts different in groove, and in open tubular column, mounting screw can be set, and has avoided binding post, mounting screw because of gap too little generation power supply short circuit phenomenon.And the utility model also has the advantages such as simple in structure, easy to process.
Described each groove 6 both sides of the edge, baseplane are provided with the positive stops 61 that many groups limit cover plates 7.Such structure can prevent that cover plate from falling in groove, considers actual needs, and groove 6 both sides respectively are provided with two groups of positive stops, certainly, also can arrange manyly, and real needs can be decided according to actual conditions; Adopt this structure, can pass through positive stop, cover plate is limited in groove, can prevent effectively that cover plate from falling into groove, certainly, also can not adopt the positive stop mode, such as groove is arranged to step-like, the cover plate lid is put on the step of groove, identical purpose can be reached equally, but owing to adopting this structure, not only position-limiting action can be played, simultaneously, also can play the effect of reinforcement, improve the intensity of groove both sides, effectively prevent the groove distortion, therefore, the execution mode of the present embodiment is preferred implementation.
On described protective cover 2, groove 6 one sides are provided with open slot 8, and the opening of this open slot 8 communicates with groove 6, and described open slot 8 bottoms are inclined plane 81.Such structure is convenient can open cover plate fast when the needs wiring, adopt this structure, can insert in open slot by finger or by instrument and pull up cover plate, can greatly facilitate the unlatching of cover plate like this, working efficiency when improving wiring certainly, also can not established open slot, such as on the cover board be provided with a draw ring or cylinder, can reach identical purpose equally, but owing to adopting open slot mode, its overall appearance, easy to process, therefore, the execution mode preferred implementation of the present embodiment.
Every technical staff's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this utility model; the repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (4)
1. double-throw knife switch, comprise insulator foot (1), protective cover (2) and contact knife (3), the two ends of described insulator foot (1) are provided with the net electrical input, thermoelectricity input and the load side (4) of being located at insulator foot (1) centre and being electrically connected to contact knife (3), described net electrical input, thermoelectricity input and load side (4) are respectively equipped with four binding posts (5), described protective cover (2) lid is put upper at binding post (5) and is fixedly connected with insulator foot (1), it is characterized in that: described protective cover (2) is at the net electrical input, the thermoelectricity input is equipped with two grooves (6), be respectively equipped with the cover plate (7) that is complementary with its size on groove (6), the dismountable lid of each cover plate (7) is put in the upper corresponding groove (6) of protective cover (2), be provided with dividing plate (21) between described two grooves (6), every two of four binding posts (5) of described net electrical input and thermoelectricity input are divided into one and are mounted in corresponding groove (6), be provided with open tubular column (22) between each two binding post of group (5) of described net electrical input and thermoelectricity input, described insulator foot (1) is provided with installing hole (11), the centre bore of described open tubular column (22) is corresponding with the centre bore of installing hole (11).
2. double-throw knife switch according to claim 1 is characterized in that described each groove (6) both sides of the edge, baseplane are provided with the positive stops (61) that many groups limit cover plates (7).
3. double-throw knife switch according to claim 2, it is characterized in that upper groove (6) one sides of described protective cover (2) are provided with open slot (8), the opening of this open slot (8) communicates with groove (6), and described open slot (8) bottom is inclined plane (81).
4. according to claim 1 and 2,3 described a kind of double-throw knife switchs, it is characterized in that described dividing plate (21), open tubular column (22) and protective cover (2) integrated injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649054 CN202930293U (en) | 2012-11-30 | 2012-11-30 | Double-throw knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649054 CN202930293U (en) | 2012-11-30 | 2012-11-30 | Double-throw knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930293U true CN202930293U (en) | 2013-05-08 |
Family
ID=48220229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220649054 Expired - Lifetime CN202930293U (en) | 2012-11-30 | 2012-11-30 | Double-throw knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709103A (en) * | 2022-03-31 | 2022-07-05 | 苏州燎原电器制造有限公司 | Double-throw isolating switch |
-
2012
- 2012-11-30 CN CN 201220649054 patent/CN202930293U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709103A (en) * | 2022-03-31 | 2022-07-05 | 苏州燎原电器制造有限公司 | Double-throw isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |