CN217544442U

CN217544442U - Change-over switch

Info

Publication number: CN217544442U
Application number: CN202221381598.XU
Authority: CN
Inventors: 贾委峰; 郑立贝
Original assignee: Zhejiang Lixin Traction Equipment Co ltd
Current assignee: Zhejiang Lixin Traction Equipment Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-04
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to a change-over switch, including casing, installation panel, rotation setting handle, shifter, contact system on the casing, contact system includes that base, bottom plate, multiunit set up the contact module in the holding intracavity of each base respectively, the casing on be provided with installation panel matched with mount pad, mount pad and installation panel between be formed with the centre gripping space, the mount pad on be provided with sealed recess, be rectangle array in this sealed recess and be provided with a plurality of mounting holes, and be provided with the through-hole that can supply the operation pivot to pass in the sealed recess, sealed recess in be provided with sealed the pad, sealed the pad on be provided with the sealed hole that communicates with the mounting hole, and sealed the pad has the sealed shaft hole that can supply the operation pivot to pass, and constitute sealed the sealed cooperation of sealing pad and operation pivot. The utility model has the advantages of simple structure, stable and reliable performance, high safety and high protection level.

Description

Change-over switch

Technical Field

The utility model relates to a low-voltage apparatus technical field, concretely relates to change-over switch.

Background

The change-over switch is also called a combination switch, and is a planar operation rotating left and right, unlike the operation of the knife switch. The change-over switch has the advantages of multiple contacts, multiple positions, small volume, reliable performance, convenient operation, flexible installation and the like, is mainly used for a lead-in switch of a power supply in an electric control circuit of a machine tool, plays a role of isolating the power supply, and can also be used as a control switch for directly controlling the infrequent starting and stopping of a small-capacity asynchronous motor. The change-over switch also has a single pole, a double pole and a triple pole. The change-over switch comprises a shell, a panel, a handle rotationally arranged on the shell, a switching mechanism arranged in the shell and in linkage with a manual switch, and a contact system, wherein the contact system comprises a plurality of contact assemblies which are stacked at the lower end of the shell, each contact assembly comprises the shell, a cam which is arranged in the shell and in linkage fit with a rotating shaft of the switching mechanism, two contact frames in linkage fit with the cam, two moving contacts which are respectively arranged on the two contact frames, a plurality of fixed contacts which are arranged in the shell and are respectively matched with the two moving contacts, and a wiring terminal.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance is reliable, high security, change over switch that protection level is high.

For realizing the above-mentioned purpose, the utility model discloses a change-over switch, including casing, mounting panel, rotation setting handle, shifter, contact system on the casing, contact system set up the contact module who sets up respectively at the holding intracavity of each base at a plurality of bases, bottom plate, the multiunit of casing lower extreme including the stack, the casing on be provided with the mount pad with mounting panel matched with, mount pad and mounting panel between be formed with the centre gripping space, the mount pad on be provided with sealed recess, be the rectangle array in this sealed recess and be provided with a plurality of mounting holes, and be provided with the through-hole that can supply the operation pivot to pass in the sealed recess, sealed recess in be provided with sealed the pad, sealed pad on be provided with the sealed hole that communicates with the mounting hole, and sealed pad has the sealed shaft hole that can supply the operation pivot to pass, and constitute sealed pad and the sealed cooperation of operation pivot.

The beneficial effect of above-mentioned structure is: be provided with sealed the pad on the mount pad, sealed the pad and operate the sealed cooperation of pivot, can avoid water to flow to the switch along operating the pivot inside, be favorable to improving waterproof performance. And the sealing gasket is provided with a sealing hole matched with the mounting hole, so that the waterproof performance of the installation of the change-over switch is improved, the sealing gasket is clamped in the sealing groove of the mounting seat, and the sealing gasket is not easy to fall off. Therefore, the change-over switch has the advantages of simple structure, stable and reliable performance, high safety and high protection level.

Particularly, a sealing sleeve wrapped on the peripheral wall of the operation rotating shaft is arranged on the sealing gasket corresponding to the sealing shaft hole. The sealing sleeve wraps the operation rotating shaft, and the sealing performance of the sealing gasket and the operation rotating shaft is improved.

Particularly, a sealing convex ring is arranged on the sealing gasket corresponding to the outer edge of the sealing hole. The sealing convex ring can be provided with a fastener for sealing fit, and the sealing performance of the installation of the change-over switch is improved.

Particularly, the installation panel include that the activity sets up mounting panel, the panel in operation pivot, the mounting panel on be provided with respectively with sealed hole matched with through-hole, the panel setting on the mounting panel and shroud on the fixed orifices. The panel can avoid the through-hole on the mounting panel to expose, is favorable to promoting this installation panel's pleasing to the eye degree.

Particularly, the panel on be provided with the locating hole, the mounting panel on be provided with the location bulge loop of block in the locating hole, the location bulge loop block in the locating hole, and correspond locating hole department on the mounting panel and be provided with two pothooks to the symmetry, the pothook pass locating hole and block on the panel, and constitute the joint cooperation of mounting panel and panel. The panel and the mounting plate are connected in a clamping matching mode, so that the panel and the mounting plate can be assembled conveniently, and the assembly efficiency is higher.

The contact module comprises a contact holder which is in linkage fit with a cam of the conversion mechanism, a spring arranged between the contact holder and the base, a moving contact which is in linkage arrangement on the contact holder, and two fixed contacts which are in fit with the moving contact, wherein one end of each fixed contact is provided with a contact part which extends in the accommodating cavity, a fixed contact which is in fit with the moving contact is arranged on the contact part, the base is provided with an accommodating groove which is communicated with the accommodating cavity, the other end of each fixed contact is provided with a wiring part which is bent vertically and extends in the accommodating groove, and a wiring terminal is arranged on the wiring part. The static contact sets up in the holding intracavity, and binding post sets up in the storage tank, and static contact, binding post adopt hidden structural design, can not expose outside the base, and the user is difficult to touch binding post, and the security performance is higher.

Drawings

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

Fig. 2 is an exploded view of an embodiment of the present invention.

Fig. 3 is an internal structure diagram of the embodiment of the present invention.

Fig. 4 is a perspective view of a mounting panel according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 4, an embodiment of the present invention is a change-over switch, including a housing 10, an installation panel 11, a handle 12, a switching mechanism 13, and a contact system 20 rotatably disposed on the housing 10, the contact system 20 includes a plurality of bases 21, a bottom plate 22, and a plurality of sets of contact modules 23 respectively disposed in the accommodating cavities 211 of the bases 21, which are stacked and disposed at the lower end of the housing 10, the housing 10 is provided with an installation seat 101 engaged with the installation panel 11, the installation seat 101 and the installation panel 11 are formed with a clamping space 100 therebetween, the installation seat 101 is provided with a sealing groove 102, the sealing groove 102 is provided with a plurality of installation holes 103 in a rectangular array, and a through hole 104 is disposed in the sealing groove 102 for the operation shaft 131 to pass through, the sealing groove 102 is provided with a sealing pad 14, the sealing pad 14 is provided with a sealing hole 141 communicated with the installation hole 103, and the sealing pad 14 is provided with a sealing hole 142 for the operation shaft 131 to pass through, and forms a sealing fit between the sealing pad 14 and the operation shaft 131. A sealing sleeve 143 wrapped on the outer peripheral wall of the operation rotating shaft 131 is arranged on the sealing gasket 14 corresponding to the sealing shaft hole 142. The sealing sleeve wraps the operation rotating shaft, and the sealing performance of the sealing gasket and the operation rotating shaft is improved. A sealing convex ring 144 is arranged on the sealing gasket 14 corresponding to the outer edge of the sealing hole 141. The sealing convex ring can be provided with a fastener for sealing fit, and the sealing performance of the installation of the change-over switch is improved.

As shown in fig. 2, the mounting panel 11 includes a mounting plate 111 movably disposed on the operation shaft 131 and a panel 112, the mounting plate 111 is respectively provided with a through hole 1111 matching with the sealing hole 141, and the panel 112 is disposed on the mounting plate 111 and covers the fixing hole 1111. The panel can avoid the through-hole on the mounting panel to expose, is favorable to promoting this installation panel's pleasing to the eye degree. The panel 112 is provided with a positioning hole 1121, the mounting plate 111 is provided with a positioning convex ring 1112 clamped in the positioning hole 1121, the positioning convex ring 1112 is clamped in the positioning hole 1121, two hooks 1113 are symmetrically arranged on the mounting plate 111 corresponding to the positioning hole 1121, and the hooks 1113 pass through the positioning hole 1121 and are clamped on the panel to form a clamping fit of the mounting plate and the panel. The panel and the mounting plate are connected in a clamping matching mode, so that the panel and the mounting plate can be assembled conveniently, and the assembly efficiency is higher.

As shown in fig. 3, the contact module 23 includes a contact holder 231 cooperating with the cam 132 of the switching mechanism 13, a spring disposed between the contact holder 231 and the base 21, a movable contact 232 cooperating with the contact holder 231, and two fixed contacts 233 cooperating with the movable contact 232, wherein one end of the fixed contact 233 has a contact portion 2331 extending in the accommodating cavity 211, the contact portion 2331 is provided with a fixed contact 2332 cooperating with the movable contact 232, the base 21 is provided with an accommodating cavity 212 communicating with the accommodating cavity 211, the other end of the fixed contact 233 has a wire connecting portion 2333 vertically bent and extending in the accommodating cavity 212, and the wire connecting portion 233 is provided with a wire connecting terminal 24. The static contact sets up in the holding intracavity, and binding post sets up in the storage tank, and static contact, binding post adopt hidden structural design, can not expose outside the base, and the user is difficult to touch binding post, and the security performance is higher.

Be provided with sealed the pad on the mount pad, sealed the pad and operate the sealed cooperation of pivot, can avoid water to flow to the switch along operating the pivot inside, be favorable to improving waterproof performance. And the sealing gasket is provided with a sealing hole matched with the mounting hole, so that the waterproof performance of the installation of the change-over switch is improved, the sealing gasket is clamped in the sealing groove of the mounting seat, and the sealing gasket is not easy to fall off. Therefore, the change-over switch has the advantages of simple structure, stable and reliable performance, high safety and high protection level.

Claims

1. The utility model provides a change-over switch, includes casing, installation panel, rotates handle, shifter, the contact system that sets up on the casing, the contact system set up the contact module at the holding intracavity of each base respectively including a plurality of bases, bottom plate, the multiunit of stack setting at the casing lower extreme, its characterized in that: the casing on be provided with and install panel matched with mount pad, mount pad and installation panel between be formed with the centre gripping space, the mount pad on be provided with sealed recess, be rectangle array in this sealed recess and be provided with a plurality of mounting holes, and be provided with the through-hole that can supply the operation pivot to pass in the sealed recess, sealed recess in be provided with sealed the pad, sealed stacking up and be provided with the sealed hole that communicates with the mounting hole, and sealed stacking up has the sealed shaft hole that can supply the operation pivot to pass, and constitute sealed the pad and operate the sealed cooperation of pivot.

2. The transfer switch of claim 1, wherein: and a sealing sleeve wrapped on the peripheral wall of the operation rotating shaft is arranged on the sealing pad corresponding to the sealing shaft hole.

3. A diverter switch according to claim 1 or 2, characterized in that: and a sealing convex ring is arranged on the sealing gasket at the position corresponding to the outer edge of the sealing hole.

4. A diverter switch according to claim 1 or 2, characterized in that: the installation panel including activity setting at epaxial mounting panel, the panel of operation, the mounting panel on be provided with respectively with sealed hole matched with through-hole, the panel setting on the mounting panel and cover on the fixed orifices.

5. The transfer switch of claim 4, wherein: the panel on be provided with the locating hole, the mounting panel on be provided with the location bulge loop of block in the locating hole, the location bulge loop block in the locating hole, and correspond locating hole department on the mounting panel and be provided with two pothooks to the symmetry, the pothook pass locating hole and block on the panel, and constitute the joint cooperation of mounting panel and panel.

6. A diverter switch according to claim 1 or 2, characterized in that: the contact module comprises a contact holder which is in linkage fit with a cam of the conversion mechanism, a spring arranged between the contact holder and the base, a moving contact which is in linkage arrangement on the contact holder, and two static contacts which are matched with the moving contact, wherein one end of each static contact is provided with a contact part which extends in the accommodating cavity, a static contact which is matched with the moving contact is arranged on each contact part, the base is provided with an accommodating groove which is communicated with the accommodating cavity, the other end of each static contact is provided with a wiring part which is bent vertically and extends in the accommodating groove, and a wiring terminal is arranged on each wiring part.