CN2439097Y

CN2439097Y - Electric change-over switch

Info

Publication number: CN2439097Y
Application number: CN 00250504
Authority: CN
Inventors: 柳五毛
Original assignee: WENZHOU CHANGJIANG ELECTRICAL APPLIANCE FACTORY
Current assignee: WENZHOU CHANGJIANG ELECTRICAL APPLIANCE FACTORY
Priority date: 2000-09-07
Filing date: 2000-09-07
Publication date: 2001-07-11
Anticipated expiration: 2010-09-07

Abstract

The utility model relates to a converting switch, which is suitable for converting electric control circuits in an AC circuit and a DC circuit. The utility model is mainly composed of a knob, a panel, a circular disk, a rotary mechanism, and an insulation converting switch seat. The rotary mechanism is mainly composed of a rotating shaft which is positioned in the circular disk, a ratchet wheel, a slide block, a spring, and a limiting component. Two circular arc-shaped convex surfaces are arranged on the ratchet wheel. The two circular arc-shaped convex surfaces are respectively provided with circular arc-shaped concave surfaces which are formed by the extension of the two circular arc-shaped convex surfaces. The two circular arc-shaped concave surfaces are respectively provided with ratchet teeth which are formed by the extension of the two circular arc-shaped concave surfaces. The utility model can be matched with relative components, and can lead he converting switch to simultaneously realize the positioning function and the self restoration function, with the advantages of the simplification of the structure of the ratchet wheel and the reduction of cost.

Description

Electric switching

The utility model is a kind of change over switch that is applicable to conversion electric control circuit in the AC and DC circuit.

Electric switching mainly is applicable to and exchanges 50Hz, voltage is to 500V, direct voltage is changed electric control circuit to the circuit of 440V, as solenoid, electrical measuring instrument and servomotor etc., also can directly control the startup of three phase induction motor, but inverse conversion and speed change, it is mainly by knob, panel, disk, rotating mechanism, insulation change over switch seat is formed, rotating mechanism is mainly by the rotating shaft that is positioned at ratchet, ratchet, slide block, formations such as spring, spring comprises torsion spring and stage clip, torsion spring is arranged on the ratchet, ratchet sleeve is connected in the rotating shaft, by the knob rotating shaft, cooperatively interacting of slide block in being arranged on disk and ratchet, rotating shaft is rotated with certain angle and certain direction, and drive two interior cams promotion or release contact contact pin that are connected with spring separately that are enclosed within the rotating shaft of change over switch seat, to reach the purpose of conversion electric control circuit.The hook tooth of this kind change over switch evenly distributes on ratchet, reach 12 teeth, the circular arc concave surface of the ratchet that cooperates with slide block also is to be evenly distributed with a plurality ofly on ratchet, and it has only single location type or from two kinds of replicas, and change over switch can not satisfy the function of location and runback simultaneously.

The purpose of this utility model is to provide a kind of electric switching that has location and runback function simultaneously.

The utility model is achieved in that electric switching, mainly form by knob, panel, disk, rotating mechanism, insulation change over switch seat, rotating mechanism mainly is made of the rotating shaft that is positioned at ratchet, ratchet, slide block, spring, locating part, spring comprises torsion spring and stage clip, torsion spring is arranged on the ratchet, ratchet and locating part are socketed in the rotating shaft, ratchet is provided with two arc convex surface, described two arc convex surface are extended the circular arc concave surface respectively, described two circular arc concave surfaces extend hook tooth respectively, are extended with the circular arc concave surface between the hook tooth.

Can be provided with two or three hook tooths on the described ratchet.

The shape of cross section of described ratchet axis hole can be octangle.

The disk inner surface that is enclosed within on the ratchet axis hole outer wall can be provided with two chutes placing slide block, and the embedded block activity on the slide block is embedded in the described chute.

A slide block that matches with ratchet can be provided with the circular arc projection, has the compression spring hole of placing stage clip on this slide block, and another slide block is provided with bar-shaped trough.

Described locating part can be made of the breach compressing piece that is enclosed within the banking stop in the rotating shaft and be crimped on the banking stop, described breach compressing piece is plugged in the annular indent of offering in the rotating shaft, and described banking stop extends the spacing catch that matches with guide vane end stop on the disk back side.

Can offer eight angles on the axis hole of described banking stop.

The torsion spring number of turns that is enclosed within on the axis hole outer wall of ratchet is three circles.

The utility model is owing to be provided with two arc convex surface on ratchet, described two arc convex surface are extended the circular arc concave surface respectively, described two circular arc concave surfaces extend hook tooth respectively, be extended with the circular arc concave surface between the hook tooth, simplified ratchet structure, reduced cost, made change over switch can realize location and runback function simultaneously.

Below in conjunction with embodiment the utility model is described in detail:

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 is insulation change over switch seat of the present utility model and top associated components schematic diagram thereof;

Fig. 3 a is the front view of the utility model ratchet;

Fig. 3 b is the rearview of the utility model ratchet;

Fig. 3 c is the vertical view of the utility model ratchet;

Fig. 3 d is the A-A cutaway view of the utility model ratchet;

Fig. 4 a is the front view of another embodiment of the utility model ratchet;

Fig. 4 b is the rearview of another embodiment of the utility model ratchet;

Fig. 4 c is the vertical view of another embodiment of the utility model ratchet;

Fig. 4 d is the B-B cutaway view of another embodiment of the utility model ratchet;

Fig. 5 is the front view of the utility model disk;

Fig. 6 a is the front view of the utility model slide block;

Fig. 6 b is the C-C cutaway view of the utility model slide block;

Fig. 6 c is the rearview of the utility model slide block;

Fig. 7 a is the front view of another slide block of the utility model;

Fig. 7 b is the D-D cutaway view of another slide block of the utility model;

Fig. 7 c is the rearview of another slide block of the utility model;

Fig. 8 is the structural representation of the utility model banking stop;

Fig. 9 is the structural representation of another embodiment of the utility model banking stop;

Figure 10 a is the front view of the utility model rotating shaft;

Figure 10 b is the end view of the utility model rotating shaft.

With reference to figure 1, Fig. 2, electric switching is mainly by knob 1, panel 2, disk 3, rotating mechanism, insulation change over switch seat 4 is formed, in the cavities two cams 12 that are socketed in the rotating shaft are set in the insulation change over

switch seat

4,13, switch base 4 is provided with and spring 5, the contact contact pin 7 of 6 crimping, 8 and crimping

piece

9,10 and some binding posts 11, rotating mechanism is mainly by the rotating shaft that is positioned at ratchet, ratchet, slide block, spring, locating part constitutes, spring comprises torsion spring and stage clip, torsion spring is arranged on the ratchet, ratchet and locating part are socketed in the rotating shaft, by knob 1 rotating shaft, cooperatively interacting of slide block in being arranged on disk and ratchet, rotating shaft is rotated with certain angle and certain direction, and two cams 12 that are enclosed within the rotating shaft in the drive change over

switch seat

4,13 promote or the release contact contact pin 7 that is connected with spring separately, 8, to reach the purpose of conversion electric control circuit, the utility model has mainly been done improvement to ratchet, make change over switch have location and runback function simultaneously, other associated components has also been done structural variation, overall structure is simple, compactness, cost is low.

With reference to figure 3a, Fig. 3 b, Fig. 3 c and Fig. 3 d, the ratchet 20 that is socketed in the rotating shaft is provided with two arc convex surface 21,22, described two arc convex surface 21,22 extend circular arc concave surface 23 respectively, 24, described two circular arc concave surfaces 23,24 extend hook tooth 25 respectively, 26, hook tooth 25, be extended with circular arc concave surface 27 between 26, the ratchet 20 of this embodiment is provided with two

hook tooths

25,26, the shape of cross section of the axis hole 28 of described ratchet 20 is a polygon-octagonal, with insertion and the location that makes things convenient for the square rotating shaft, the torsion spring set of one three circle is at the outer wall of ratchet axis hole 28, by 29 axial location of the fixture block on the outer wall, the two ends of torsion spring are stuck in the two ends of the circular arc back-up ring 30 of ratchet edge setting, back-up ring 30 from low to high, the high-end catch that matches 31 with torsion spring is arranged at the high-end top of back-up ring 30, on the opposite side axis hole outer wall 32 of ratchet 20 with the centre bore socket of disk, be that disk is enclosed within on the ratchet, limiting stand 33 is arranged on the axis hole outer wall 32, disk is carried out spacing, this kind ratchet 20 can satisfy 90 ° of change over switches, 45 °, 0 ° ← 45 ° and 90 ° → 45 °, 0 °, 45 ° ← 90 ° and 45 °, 0 ° ← 45 ° location and runback function.

Another embodiment of ratchet such as Fig. 4 a, Fig. 4 b, shown in Fig. 4 c and Fig. 4 d, its structure is identical with Fig. 3 a-Fig. 3 d roughly, the maximum ratchet 40 that is not both is provided with three

hook tooths

41,42,43, two arc convex surface 44 of ratchet 40, the 45th, by its circular arc back-up ring 46 nonseptate extension transition, two

arc convex surface

44,45 extend circular arc concave surface 47 again respectively, 48, described two circular arc

concave surfaces

47,48 extend hook tooth 41 respectively, 42,43, the ratchet 40 of this kind structure can satisfy 135 ° of change over switches, 90 °, 45 °, 0 ° ← 45 ° location and runback function.

With reference to figure 5, disk 50 inner surfaces that are enclosed within on the ratchet axis hole outer wall can be provided with two

chutes

51,52 of placing slide block, embedded block activity on the slide block is embedded in the described chute, the middle part of disk 50 has centre bore 53, circular housing 54 on the disk 50 constitutes the cavity 55 of placing slide block and ratchet, and the back side of disk 50 is provided with the guide vane end stop that matches with locating part.

With reference to figure 6a, Fig. 6 b, Fig. 6 c and Fig. 7 a, Fig. 7 b, Fig. 7 c, a slide block 60 that matches with ratchet is provided with circular arc projection 61, the embedded block 62 of slide block 60 bottoms is inserted in the chute in the disk 50, have the compression spring hole 63 of placing stage clip on this slide block 60, another slide block 70 is inserted in another chute of disk 50, and slide block 70 is provided with bar-shaped trough 71.

Locating part in the rotating shaft can be made of the breach compressing piece that is enclosed within the banking stop in the rotating shaft and be crimped on the banking stop, and described breach compressing piece is plugged in the annular indent of offering in the rotating shaft, and banking stop can have various ways.With reference to figure 8, banking stop 80 extends two

spacing catch

81,82 that match with guide vane end stop on disk 50 back sides, offers eight angles on the axis hole 83 of banking stop 80, with socket and the location that makes things convenient for rotating shaft.Fig. 9 is another embodiment of banking stop, and banking stop 90 extends a spacing catch 91 of circular arc that matches with guide vane end stop on disk 50 back sides.

With reference to figure 10a, Figure 10 b, the rotating shaft 100 that knob drives is stretched in the axis hole of ratchet, rotating shaft 100 is a square with the shape of cross section of the socket place of associated components, and rotating shaft 100 is provided with the card platform 101 spacing to ratchet, has the indent 102 of placing spacing breach compressing piece in the rotating shaft 100.

Claims

1. electric switching, mainly form by knob, panel, disk, rotating mechanism, insulation change over switch seat, rotating mechanism mainly is made of the rotating shaft that is positioned at ratchet, ratchet, slide block, spring, locating part, spring comprises torsion spring and stage clip, torsion spring is arranged on the ratchet, ratchet and locating part are socketed in the rotating shaft, it is characterized in that: ratchet is provided with two arc convex surface, described two arc convex surface are extended the circular arc concave surface respectively, described two circular arc concave surfaces extend hook tooth respectively, are extended with the circular arc concave surface between the hook tooth.

2. electric switching as claimed in claim 1 is characterized in that: described ratchet is provided with two hook tooths.

3. electric switching as claimed in claim 1 is characterized in that: described ratchet is provided with three hook tooths.

4. as claim 1,2 or 3 described electric switchings, it is characterized in that: the disk inner surface that is enclosed within on the ratchet axis hole outer wall is provided with two chutes placing slide block, and the embedded block activity on the slide block is embedded in the described chute.

5. electric switching as claimed in claim 4 is characterized in that: a slide block that matches with ratchet is provided with the circular arc projection, has the compression spring hole of placing stage clip on this slide block, and another slide block is provided with bar-shaped trough.

6. as claim 1,2 or 3 described electric switchings, it is characterized in that: described locating part is made of the breach compressing piece that is enclosed within the banking stop in the rotating shaft and be crimped on the banking stop, described breach compressing piece is plugged in the annular indent of offering in the rotating shaft, and described banking stop extends the spacing catch that matches with guide vane end stop on the disk back side.

7. electric switching as claimed in claim 6 is characterized in that: offer eight angles on the axis hole of described banking stop.

8. as claim 1,2 or 3 described electric switchings, it is characterized in that: the torsion spring number of turns that is enclosed within on the axis hole outer wall of ratchet is three circles.