CN2694464Y

CN2694464Y - Forward and backward switch rotation shaft assembly

Info

Publication number: CN2694464Y
Application number: CN 200420050286
Authority: CN
Inventors: 瞿建喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-25
Filing date: 2004-04-25
Publication date: 2005-04-20
Anticipated expiration: 2014-04-25

Abstract

The utility model relates to a forward and backward switch rotation shaft assembly, comprising a metal rotation shaft, and the metal rotation shaft is fixedly provided with a plastic sleeve component formed by the injection forming. The forward and backward switch rotation shaft assembly, a movable contact, an insulating component, a standard component and others are assembled into a contact set, in order to realize on-off of the positive rotation and the negative rotation of the forward and backward switch. The forward and backward switch rotation shaft assembly utilizes a plastic sleeve component to substitute the bush, the cushion ring, the ratchet, the pin and other parts of the prior art, and the forward and backward switch rotation shaft assembly is provided with only two parts, having simple structure, favorable manufacture effect and low production cost. In addition, the forward and backward switch rotation shaft assembly has no the problem that the radial direction sloshing is generated between the ratchet and the rotation shaft, improving the abrade-resistant performance, extending the service life of the machinery.

Description

The two-direction switch rotating assembly

One, affiliated technical field

The utility model relates to a kind of two-direction switch, refers in particular to a kind of rotating assembly that is used for two-direction switch.

Two, background technology

At present, known two-direction switch mainly is made up of shell, base, moving contact, fixed contact, rotating assembly, operating mechanism etc. on the market, rotating assembly is assembled into moving contact, insulating part, standard component etc. and contacts group, and logical and disconnected with the forward and backward that realizes two-direction switch is as KO ₃-15,30 type two-direction switchs etc.As shown in Figure 1, the rotating assembly that is used for two-direction switch now is made up of rotating shaft, lining, packing ring, ratchet, pin etc., number of spare parts is more, the structure more complicated, also exist the problem of radially rocking between ratchet and rotating shaft, because have the problem of radially rocking, product is easy to wear, has influenced the mechanical endurance of product.

Three, utility model content

Characteristics such as the purpose of this utility model is to overcome the above-mentioned defective that prior art exists, and a kind of two-direction switch rotating assembly is provided, and it has, and number of spare parts is few, simple in structure, wear-resistant, mechanical endurance is long.

For achieving the above object, the solution that the utility model is taked is: a kind of two-direction switch rotating assembly, it comprises metal rotating shaft, is fixed with a plastics external member that forms by injection moulding on this metal rotating shaft.

The utility model is assembled into moving contact, insulating part, standard component etc. and contacts group, logical and disconnected with the forward and backward that realizes two-direction switch.In the utility model, a plastics external member has replaced parts such as lining of the prior art, packing ring, ratchet, pin, have only two parts, simple in structure, make excellent in efficiency, production cost is low, and does not have the problem of radially rocking between ratchet and rotating shaft, has improved abrasion resistance properties and has prolonged mechanical endurance.

Four, description of drawings

Fig. 1 is the prior art structural representation.

Fig. 2 is the front view of embodiment one (semicircle metal rotating shaft assembly).

Fig. 3 is the right view of embodiment one.

Fig. 4 is the A-A cutaway view of Fig. 2.

Fig. 5 is the front view of embodiment two (rectangular metal rotating assembly).

Fig. 6 is the right view of embodiment two.

Fig. 7 is the front view of embodiment three (oblate metal rotating shaft assembly).

Fig. 8 is the right view of embodiment three.

Among the figure: 1, lining, 2, packing ring, 3, ratchet, 4, rotating shaft, 5, lining, 6, pin, 7, metal rotating shaft, 8, the plastics external member.

Five, embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.

Referring to Fig. 2-Fig. 4, a kind of two-direction switch rotating assembly, it comprises metal rotating shaft 7, is fixed with a plastics external member 8 that forms by injection moulding on this metal rotating shaft 7.

Referring to Fig. 2 and Fig. 3, described metal rotating shaft 7 is semicircular.

Referring to Fig. 5 and Fig. 6, described metal rotating shaft 7 is rectangles.

Referring to Fig. 7 and Fig. 8, described metal rotating shaft 7 is oblate.

Claims

1, a kind of two-direction switch rotating assembly, it comprises metal rotating shaft (7), it is characterized in that: be fixed with a plastics external member (8) that forms by injection moulding on this metal rotating shaft (7).

2, a kind of two-direction switch rotating assembly according to claim 1, it is characterized in that: described metal rotating shaft (7) is semicircular.

3, a kind of two-direction switch rotating assembly according to claim 1, it is characterized in that: described metal rotating shaft (7) is a rectangle.

4, a kind of two-direction switch rotating assembly according to claim 1, it is characterized in that: described metal rotating shaft (7) is oblate.