CN217280473U - Auxiliary switch - Google Patents
Auxiliary switch Download PDFInfo
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- CN217280473U CN217280473U CN202221059929.8U CN202221059929U CN217280473U CN 217280473 U CN217280473 U CN 217280473U CN 202221059929 U CN202221059929 U CN 202221059929U CN 217280473 U CN217280473 U CN 217280473U
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- contact
- base
- limiting block
- push rod
- moving contact
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Abstract
The utility model relates to an auxiliary switch, including base, apron, the switch module of setting on the base, the switch module includes that push rod, reset spring, multiunit linkage set up the movable contact group on the push rod, set up respectively on the base and with multiunit movable contact group matched with a plurality of static contacts, movable contact group including normally open moving contact, the normally closed moving contact, the contact spring that contact with the static contact, the push rod on be provided with the joint hole, normally open moving contact set up downthehole at the joint, normally closed moving contact activity set up downtheholely at the joint, normally open moving contact on be provided with first stopper, normally closed moving contact on be provided with the second stopper, the contact spring setting between first stopper and second stopper. The utility model has the advantages of simple structure, stable performance, reliability, convenient assembly and good protection performance.
Description
Technical Field
The utility model particularly relates to an auxiliary switch.
Background
The auxiliary switch is a part of the main switch, is configured in electric equipment such as a high-voltage or medium-voltage circuit breaker, an isolating switch and the like, serves as the opening and closing, signal control and interlocking protection functions of a secondary control circuit, and can be used as a combined switch and a change-over switch. The auxiliary switch is named with two words of 'auxiliary', because the auxiliary switch is not an independent switch and is an auxiliary carrier for realizing the functions of breaking, connecting and interlocking in an operation and control system. The existing auxiliary switch is complex in structural design and relatively complex in assembly, the protective performance of the auxiliary switch is relatively poor, dust and sundries easily enter the auxiliary switch, and therefore the auxiliary switch has the defects of complex structure, inconvenience in assembly, unreliable performance and poor protective performance.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance is reliable, the assembly is convenient, barrier propterty is good auxiliary switch.
In order to achieve the purpose, the utility model adopts an auxiliary switch, which comprises a base, a cover plate arranged on the base and a switch component, the switch component comprises a push rod which is arranged on the base in a penetrating way, a return spring which is arranged between the push rod and the base, a plurality of groups of moving contact groups which are arranged on the push rod in a linkage way, a plurality of static contacts which are respectively arranged on the base and matched with the plurality of groups of moving contact groups, the moving contact group comprises a normally open moving contact, a normally closed moving contact contacted with the fixed contact and a contact spring, the push rod is provided with a clamping hole, the normally open moving contact is arranged in the clamping hole, the normally closed moving contact is movably arranged in the clamping hole, the normally open moving contact is provided with a first limiting block, the normally closed moving contact is provided with a second limiting block, and the contact spring is arranged between the first limiting block and the second limiting block.
The beneficial effect of above-mentioned structure is: the movable contact group clamps in the joint hole of push rod to be convenient for the assembly of movable contact subassembly and push rod, the assembly is more convenient, and the contact spring can increase the contact pressure of normally open moving contact, normal close moving contact and static contact, and the contact is more reliable, and is provided with first stopper, second stopper on normally open moving contact, the normal close moving contact respectively, thereby be convenient for the assembly of contact spring and normally open moving contact, normal close moving contact, assembly efficiency is higher. And be provided with multiunit movable contact subassembly on the base to can satisfy the user demand in multiloop, application range is wider. Therefore, the auxiliary switch has the advantages of simple structure, stable and reliable performance, convenience in assembly and good protection performance.
Particularly, the one end of push rod have the stopper that extends outside the base, the base on be provided with the shield of shroud on the stopper, the both sides of shield on be provided with the card strip respectively, the base on be provided with card strip matched with draw-in groove, card strip block in the draw-in groove, and constitute the joint cooperation of shield and base. The shield covers the push rod, can avoid the dust to enter into the auxiliary switch inside, can play dustproof effect, and barrier propterty is better.
In particular, the other end of the push rod is provided with a driving part exposed outside the base, and the driving part is provided with a pulley in a rotating way. The pulley is arranged on the driving part of the push rod, the push rod and the driving part cannot be clamped, and the driving part can reliably drive the push rod, so that the working reliability of the auxiliary switch is improved.
Particularly, the first limiting block on be provided with contact spring matched with first boss, the second limiting block on be provided with contact spring matched with second boss, the both ends of contact spring block respectively on first boss, second boss, and constitute the joint cooperation of contact spring and first limiting block, second limiting block. The contact spring is clamped between the first limiting block and the second limiting block, so that the working reliability of the auxiliary switch can be improved.
Particularly, a positioning lug is arranged on the normally open moving contact, a positioning groove matched with the positioning block is arranged on the first limiting block, the positioning block is clamped in the positioning groove, and the normally open moving contact is clamped and matched with the first limiting block; the normally closed moving contact is provided with a limiting lug, the second limiting block is provided with a limiting groove matched with the limiting lug, and the limiting lug is clamped in the limiting groove and forms clamping fit of the normally closed moving contact and the second limiting block. Normally open moving contact and first stopper, normally closed moving contact adopt the joint cooperation mode to be connected with the second stopper, and the assembly is more convenient, is favorable to improving this auxiliary switch's assembly efficiency.
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 a cross-sectional view of an embodiment of the present invention.
Fig. 4 is an assembly view of the push rod and the moving contact set according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 4, an embodiment of the present invention is an auxiliary switch, including a base 10, a cover plate 11 disposed on the base 10, and a switch assembly 20, where the switch assembly 20 includes a push rod 21 penetrating the base 10, a return spring 22 disposed between the push rod 21 and the base 10, a plurality of sets of moving contact sets 23 linked to the push rod 21, and a plurality of fixed contacts 24 respectively disposed on the base 10 and matched with the sets of moving contact sets 23, the moving contact set 23 includes a normally open moving contact 231, a normally closed moving contact 232 in contact with the moving contact sets 24, and a contact spring 233, the push rod 21 is provided with a fastening hole 211, the normally open moving contact 231 is disposed in the fastening hole 211, the normally closed moving contact 232 is movably disposed in the fastening hole 211, the normally closed moving contact is provided with a first stopper 234, the normally closed moving contact 232 is provided with a second stopper 235, the contact spring 233 is disposed between the first stopper 234 and the second stopper 235.
As shown in fig. 2 to 4, one end of the push rod 21 has a limit block 212 extending outside the base 10, the base 10 is provided with a dust-proof cover 12 covering the limit block 212, two sides of the dust-proof cover 12 are respectively provided with a clamping strip 121, the base 10 is provided with a clamping groove 101 matched with the clamping strip 121, the clamping strip 121 is clamped in the clamping groove 101, and the clamping matching of the dust-proof cover 12 and the base 10 is formed. The shield covers the push rod, can avoid the dust to enter into the auxiliary switch inside, can play dustproof effect, and barrier propterty is better. The other end of the push rod 21 has a driving part 213 exposed to the outside of the base 10, and a pulley 214 is rotatably provided on the driving part 213. The pulley is arranged on the driving part of the push rod, the push rod and the driving part cannot be clamped, and the driving part can reliably drive the push rod, so that the working reliability of the auxiliary switch is improved. The first limit block 234 is provided with a first boss 2341 matched with the contact spring 233, the second limit block 235 is provided with a second boss 2351 matched with the contact spring 233, two ends of the contact spring 233 are respectively clamped on the first boss 2341 and the second boss 2351, and the contact spring 233 is in clamping fit with the first limit block 234 and the second limit block 235. The contact spring is clamped between the first limiting block and the second limiting block, so that the working reliability of the auxiliary switch can be improved. The normally open moving contact 231 is provided with a positioning bump 2311, the first limit block 234 is provided with a positioning groove 2342 matched with the positioning block 2311, the positioning block 2311 is clamped in the positioning groove 2342, and the normally open moving contact 231 is in clamping fit with the first limit block 234; the normally closed moving contact 232 is provided with a limiting projection 2321, the second limiting block 235 is provided with a limiting groove 2352 matched with the limiting projection 2321, and the limiting projection 2321 is clamped in the limiting groove 2352 to form clamping matching of the normally closed moving contact 232 and the second limiting block 235. Normally open moving contact and first stopper, normally closed moving contact adopt the joint cooperation mode to be connected with the second stopper, and the assembly is more convenient, is favorable to improving this auxiliary switch's assembly efficiency.
The movable contact group clamps in the joint hole of push rod to be convenient for the assembly of movable contact subassembly and push rod, the assembly is more convenient, and the contact spring can increase the contact pressure of normally open moving contact, normal close moving contact and static contact, and the contact is more reliable, and is provided with first stopper, second stopper on normally open moving contact, the normal close moving contact respectively, thereby be convenient for the assembly of contact spring and normally open moving contact, normal close moving contact, assembly efficiency is higher. And be provided with multiunit movable contact subassembly on the base to can satisfy the user demand in multiloop, application range is wider. Therefore, the auxiliary switch has the advantages of simple structure, stable and reliable performance, convenience in assembly and good protection performance.
Claims (5)
1. The utility model provides an auxiliary switch, includes the base, sets up apron, the switch module on the base, its characterized in that: the switch assembly comprises a push rod penetrating through the base, a reset spring arranged between the push rod and the base, a plurality of groups of movable contact groups arranged on the push rod in a linkage mode, and a plurality of fixed contacts respectively arranged on the base and matched with the plurality of groups of movable contact groups, wherein each movable contact group comprises a normally open movable contact, a normally closed movable contact and a contact spring, the normally closed movable contact is in contact with the fixed contacts, a clamping hole is formed in the push rod, the normally open movable contact is arranged in the clamping hole, the normally closed movable contact is movably arranged in the clamping hole, a first limiting block is arranged on the normally open movable contact, a second limiting block is arranged on the normally closed movable contact, and the contact springs are arranged between the first limiting block and the second limiting block.
2. The auxiliary switch of claim 1, wherein: the one end of push rod have the stopper that extends outside the base, the base on be provided with the shield of shroud on the stopper, the both sides of shield on be provided with the card strip respectively, the base on be provided with card strip matched with draw-in groove, card strip block in the draw-in groove, and constitute the joint cooperation of shield and base.
3. An auxiliary switch according to claim 1 or 2, characterized in that: the other end of the push rod is provided with a driving part exposed outside the base, and the driving part is rotatably provided with a pulley.
4. An auxiliary switch according to claim 1 or 2, characterized in that: the first limiting block is provided with a first boss matched with the contact spring, the second limiting block is provided with a second boss matched with the contact spring, two ends of the contact spring are clamped on the first boss and the second boss respectively, and the contact spring is clamped and matched with the first limiting block and the second limiting block.
5. An auxiliary switch according to claim 1 or 2, characterized in that: the normally open moving contact is provided with a positioning lug, the first limiting block is provided with a positioning groove matched with the positioning block, and the positioning block is clamped in the positioning groove to form clamping matching of the normally open moving contact and the first limiting block; the normally closed moving contact is provided with a limiting lug, the second limiting block is provided with a limiting groove matched with the limiting lug, and the limiting lug is clamped in the limiting groove and forms clamping matching of the normally closed moving contact and the second limiting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221059929.8U CN217280473U (en) | 2022-04-28 | 2022-04-28 | Auxiliary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221059929.8U CN217280473U (en) | 2022-04-28 | 2022-04-28 | Auxiliary switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217280473U true CN217280473U (en) | 2022-08-23 |
Family
ID=82879886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221059929.8U Active CN217280473U (en) | 2022-04-28 | 2022-04-28 | Auxiliary switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217280473U (en) |
-
2022
- 2022-04-28 CN CN202221059929.8U patent/CN217280473U/en active Active
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