CN203859043U

CN203859043U - Rotary switch

Info

Publication number: CN203859043U
Application number: CN201420310620.0U
Authority: CN
Inventors: 朱华俊
Original assignee: Ningbo Relay At Dawn Co Ltd
Current assignee: Ningbo Relay At Dawn Co Ltd
Priority date: 2014-06-12
Filing date: 2014-06-12
Publication date: 2014-10-01
Anticipated expiration: 2024-06-12

Abstract

The utility model discloses a rotary switch. The rotary switch comprises a shell, a central shaft, a connecting reed, a movable contact and a plurality of gear-shifting stationary contacts, wherein the central shaft is mounted inside the shell; one end of the connecting reed is fixedly connected with the central shaft; the movable contact is fixedly mounted at the other end of the connecting reed; the gear-shifting stationary contacts are uniformly arranged on the bottom surface of the shell; the shell comprises a base body, a cover body and a middle body being connected between the base body and the cover body; a plurality of convex pillars used for fixedly mounting the gear-shifting stationary contacts are arranged on the bottom surface of the base body. The rotary switch is simple in structure and convenient to operate, and has the characteristics of being good in electrical connectivity, accurate in positioning, long in service life and the like.

Description

Rotary switch

Technical field

The utility model relates to a kind of rotary switch.

Background technology

The course of work of rotary switch is to utilize a rotatable central shaft to drive moving contact to realize break-make or the switching of electric current.The rotary switch using at present comprises central shaft, by connecting moving contact that reed is connected with central shaft, being arranged on the multiple gearshift fixed contacts on pedestal, moving contact is connected with fixed contact is closed under the drive of the central shaft of rotation, when gearshift, by rotary middle spindle, moving contact moves to another gearshift fixed contact from a gearshift fixed contact.Existing rotary switch is all first not mention moving contact to be just directly rotated, and can cause like this loose contact between moving contact and fixed contact, and electrical connection properties is poor, even causes switch failure, and positioner is not set, and causes location inaccurate.

Utility model content

(1) technical problem that will solve

The technical problems to be solved in the utility model is to provide that a kind of electrical connectivity is good, the rotary switch of accurate positioning, long service life.

(2) technical scheme

For solving the problems of the technologies described above, the utility model provides a kind of rotary switch, it comprises housing, be arranged on the central shaft in housing, what one end was fixedly connected with central shaft is connected reed, be fixedly mounted on the moving contact connecting on the reed other end, and multiple gearshift fixed contact being evenly arranged on housing bottom surface; Housing comprise pedestal, lid and be connected to pedestal and lid between intermediate, on the bottom surface of pedestal, be provided with multiple for fixedly mount gearshift fixed contact projection.

Wherein, be set with the first spring on central shaft, one end of the first spring is resisted against intermediate, and the other end is resisted against central shaft.

Wherein, on central shaft, be set with rotating disk, on rotating disk, be provided with internal spline, on central shaft, be provided with the external splines matching with internal spline.

Wherein, on the external peripheral surface of rotating disk, offer installing hole, the second spring and ball are installed in installing hole successively, on lid, offer the annular slot rolling matching with ball.

Wherein, on annular slot rolling, be evenly provided with multiple location notchs.

Wherein, central shaft stretches out in the square shaft outside housing and is installed with knob, offers the square opening matching with square shaft on knob.

Wherein, on the excircle of knob, evenly offer multiple arc grooves.

(3) beneficial effect

Compared with prior art, the utility model rotary switch structure is simple, easy to operate, has the features such as electrical connectivity is good, accurate positioning, long service life.

Brief description of the drawings

Fig. 1 is the blast structural representation of the utility model rotary switch while removing mounting panel.

Fig. 2 is the horizontal section structural representation of the utility model rotary switch.

Fig. 3 is A-A cutaway view.

Embodiment

Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.

The stereochemical structure of the utility model rotary switch is as shown in 1, its cross-section structure as shown in Figures 2 and 3, this rotary switch comprises housing 1, be arranged on the central shaft 2 in housing 1, what one end was fixedly connected with central shaft 2 is connected reed 3, be fixedly mounted on the moving contact 4 connecting on reed 3 other ends, and multiple gearshift fixed contact 5 being evenly arranged on housing 1 bottom surface; Housing 1 comprise pedestal 11, lid 12 and be connected to pedestal 11 and lid 12 between intermediate 13, between pedestal 11 and intermediate 13, adopt and be threaded, between lid 12 and intermediate 13, also adopt and be threaded, on the bottom surface of pedestal 11, be provided with multiplely for fixedly mounting the projection 111 of gearshift fixed contact 5, between moving contact 4 and intermediate 13, leave moving contact when gap is convenient shifts gears and first depart from gearshift fixed contact; On housing 1, be provided with rotary switch is mounted to the mounting panel 14 on electric elements; This central shaft 2 be connected reed 3 and want that the one end connecting is installed with center moving contact 31, this center moving contact 31 be fixedly mounted on pedestal 11 Shang center, bottom surface fixed contacts 32 and contact.

The one end that is set with the first spring 6, the first springs 6 on central shaft 2 is resisted against intermediate 13, and the other end is resisted against central shaft 2.

On central shaft 2, be set with rotating disk 7, this rotating disk 7 is supported on described lid 12, is provided with internal spline 71 on rotating disk 7, is provided with the external splines 22 matching with internal spline 71 on central shaft 2.In the present embodiment, external splines 22 is arranged on the shaft shoulder 21 of central shaft 2, and the first spring 6 is resisted against this shaft shoulder 21.

On the external peripheral surface of rotating disk 7, offer installing hole 72, the second spring 8 and ball 9 are installed in installing hole 72 successively, on lid 12, offer the annular slot rolling 121 matching with ball 9; On annular slot rolling 121, be evenly provided with multiple location notchs 122.Avoid moving contact and the loose contact of gearshift fixed contact, and cause electrical connection properties poor.

Central shaft 2 stretches out in the square shaft 23 outside housing 1 and is installed with knob 10, offers the square opening 101 matching with square shaft 23 on knob 10; On the excircle of knob 10, evenly offer multiple arc grooves 102.The setting of arc groove, easy to use taking held knob.

When gearshift, by the past knob certain distance of housing direction that departs from, moving contact is departed to gearshift fixed contact, then rotate knob, moving contact moves to another gearshift fixed contact from a gearshift fixed contact under the effect of the central shaft of rotation, and now ball also rolls in another location notch in slot rolling in a location notch, completes after gearshift, decontrol knob, moving contact contacts with another gearshift fixed contact under the active force of the first spring.The utility model rotary switch structure is simple, easy to operate, has the features such as electrical connectivity is good, accurate positioning, long service life.

These are only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. a rotary switch, it is characterized in that: described rotary switch comprises housing (1), be arranged on the central shaft (2) in described housing (1), what one end was fixedly connected with described central shaft (2) is connected reed (3), be fixedly mounted on the moving contact (4) on described connection reed (3) other end, and multiple gearshift fixed contact (5) being evenly arranged on described housing (1) bottom surface; Described housing (1) comprise pedestal (11), lid (12) and be connected to described pedestal (11) and described lid (12) between intermediate (13), on the bottom surface of described pedestal (11), be provided with multiple for fixedly mounting the projection (111) of described gearshift fixed contact (5).

2. rotary switch according to claim 1, it is characterized in that: on described central shaft (2), be set with the first spring (6), one end of described the first spring (6) is resisted against described intermediate (13), and the other end is resisted against described central shaft (2).

3. rotary switch according to claim 1, it is characterized in that: on described central shaft (2), be set with rotating disk (7), on described rotating disk (7), be provided with internal spline (71), on described central shaft (2), be provided with the external splines (22) matching with described internal spline (71).

4. rotary switch according to claim 3, it is characterized in that: on the external peripheral surface of described rotating disk (7), offer installing hole (72), the second spring (8) and ball (9) are installed in described installing hole (72) successively, on described lid (12), offer the annular slot rolling (121) matching with described ball (9).

5. rotary switch according to claim 4, is characterized in that: on described annular slot rolling (121), be evenly provided with multiple location notchs (122).

6. rotary switch according to claim 1, it is characterized in that: described central shaft (2) stretches out in the outer square shaft (23) of described housing (1) and is installed with knob (10), offers the square opening (101) matching with described square shaft (23) on described knob (10).

7. rotary switch according to claim 6, is characterized in that: on the excircle of described knob (10), evenly offer multiple arc grooves (102).