CN203774130U - Reversely-pulled switch - Google Patents
Reversely-pulled switch Download PDFInfo
- Publication number
- CN203774130U CN203774130U CN201420147951.7U CN201420147951U CN203774130U CN 203774130 U CN203774130 U CN 203774130U CN 201420147951 U CN201420147951 U CN 201420147951U CN 203774130 U CN203774130 U CN 203774130U
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- Prior art keywords
- insulator
- shell
- contact
- water proof
- handle
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Abstract
The utility model discloses a reversely-pulled switch which comprises a base, a housing, a nut and a washer. The base and the housing are connected through a thread; the nut and the washer are sleeved on the housing through threads respectively; and the base and the housing are internally provided with an operating mechanism, a sealing mechanism and a switch circuit portion. The operating mechanism comprises an insulation sleeve, an insulator A, an insulator B, a clamp ring and a pressure spring, wherein the insulation sleeve, the insulator A, the insulator B, and the clamp ring are sleeved at the lower end of a handle in sequence; and the pressure spring is sleeved at the upper end of the handle. The sealing mechanism is formed by a waterproof ring, a pull handle and an O-shaped sealing washer, wherein the waterproof ring is arranged in the circular groove in the pull handle; and the O-shaped sealing washer is arranged on the housing. The switch circuit portion is formed by a contact piece assembly and a contact circular ring, wherein the contact piece assembly is arranged inside the base; and the contact circular ring is sleeved at the lower end of the handle and located between the insulator A and the insulator B. The reversely-pulled switch has the advantages of being high in seal grade, wide in operating temperature range, and reliable in contact and the like, and can be widely used in instrument and equipment in deepwater environment.
Description
Technical field
The utility model belongs to electrocomponent technology field, relates to a kind of switch, especially relates to a kind of reverse extending type switch.
Background technology
Button leaves and refers to and utilize button to promote transmission mechanism, makes moving contact and fixed contact by on-off, drive and realize the switch of circuit changing-over.Push-button switch is a kind of simple in structure, and application is master control electrical apparatus very widely.In electric automatic control circuit, for manually sending control signal with control contactor, relay, electromagnetic starter etc.Traditional push-button switch mainly comprises upper shell and lower house, the mutual sleeve of described upper shell and lower house, wherein upper shell upper end is provided with button, button arrangement has back-moving spring, in the lower end of button, disposes metallic conduction sheet, in lower house with metal connecting pin, wherein upper shell adopts metal to make, lower house is adopted made of plastic, during making under the metal of upper shell along inwardly turning over, and fixing lower house firmly.Adopt this structure to be unfavorable for assembling, maintenance is inconvenient, and owing to relating to metal material, makes manufacturing cost higher.
For addressing the above problem, various push-button switches have been there are at present, the Chinese patent that is CN203434011U as publication number discloses a kind of push-button switch, this technical scheme is that upper shell and lower house adopt retaining mechanism, make the installation processing of upper shell and lower house convenient, and abandon turning over after locking in edge under the metal of upper shell, make upper shell and lower house all adopt plastics manufacture, can reduce material cost.But because this technical scheme does not arrange any hermetically-sealed construction, make push-button switch IP protection level low, dustproof and waterproof poor-performing.
In order to improve IP degree of protection and the dustproof and waterproof performance of push-button switch, Chinese patent literature CN202996654U of the prior art discloses a kind of push-button switch, and it comprises housing, and it comprises upper shell and the lower house mutually removably connecting; Button actuator, described button actuator is mounted slidably in described housing inner side, and described button actuator one end is connected with button; The other end is controlled the contact of dynamic and static contact in pedestal or is not contacted, realize connecting and disconnecting of the circuit, wherein said button actuator comprises, the mast removably connecting with described button, between described mast and described housing, seal is set, described seal forms annular protrusion, and the madial wall of described annular protrusion is closely surrounded on described mast; Described mast is at contact side moulding the first seal groove and the second seal groove with described annular protrusion, and described seal is provided with the first seal convexity and the second seal convexity in the position of described the first seal groove of correspondence and the second seal groove.Adopt this technical scheme can play good dustproof and waterproof effect, solved the poor problem of push-button switch IP degree of protection.But this structure can not form interior external seal, and product to be in use prone to contact unreliable, and can not be applicable in deepwater environment.
In sum, switch is in a large number for land, space flight, aviation and ship's fitting at present, play circuit conversion and signal transmitting effect, and direction of operating mostly is push type, inside and outside sealing property is poor, and operating temperature range is less, can not meet the instructions for use in deepwater environment, if therefore develop a kind of reverse extending type switch that is applicable to deepwater environment, it is current problem demanding prompt solution.
Utility model content
The purpose of this utility model is to overcome the existing deficiency of existing push-button switch, provides that a kind of sealing grade is high, operating temperature range is wide, contact reverse extending type switch reliably.
The utility model is achieved by following technical solution.
A kind of reverse extending type switch, comprise pedestal, shell, nut and packing ring, described pedestal is connected by screw thread with shell, nuts and washers respectively by thread set on shell, described pedestal and enclosure are provided with operating mechanism, sealing mechanism and switching circuit portion.
Described operating mechanism comprises handle, insulating case, insulator A, insulator B, collar and stage clip, and wherein insulating case, insulator A, insulator B and collar are sleeved on handle, at its lower end successively, and compression spring sleeve is contained in handle upper end.
Described sealing mechanism is comprised of water proof ring, pull handle and O shape seal washer, and described water proof ring is arranged in the annular groove on pull handle, and O shape seal washer is arranged on shell.
Described switching circuit portion by contact chip assembly with contact annulus and form, wherein contact chip assembly is arranged on base interior, contact annulus is sleeved on handle, at its lower end, and between insulator A and insulator B.
On described contact chip assembly, be provided with two contact points.
Described contact annulus is the contact of elastic-friction formula with contacting of contact chip assembly.
On described pull handle, step is set.
The lower end of described shell is provided with limiting stand.
Described water proof ring comprises water proof ring and lower water proof ring, and the magnitude of interference that upper water proof ring and lower water proof ring coordinate with shell is from top to bottom ladder waterproof construction.
The dynamic magnitude of interference of described upper water proof ring and shell is monolateral 0.15mm, and the dynamic magnitude of interference of lower water proof ring and shell is monolateral 0.20mm.
The beneficial effects of the utility model are:
The utility model is on traditional push-button switch, to have increased stage clip and pull handle to realize the reverse extending type operation of switch; By increasing water proof ring and O shape seal washer, realize the inside and outside sealing function of switch; By being two contact points by contact chip component design, and contact annulus and contacting of contact chip assembly are designed to the contact of elastic-friction formula, the contact of assurance product is reliable.
Compare with traditional push-button switch, the utlity model has following remarkable advantage:
1, the utility model can be realized reverse pull operation, and the limited step by shell guarantees the total travel that switch upwards pulls;
2, the utility model has increased sealing mechanism, realizes the inside and outside waterproof sealing function of product by sealing mechanism;
3, by the multi-point design of contact chip assembly and the elastic-friction formula of contact point, contact, guaranteed that the contact of product is reliable.
The utility model is by adopting operating mechanism, sealing mechanism and switching circuit portion to combine, make product there is sealing grade high, operating temperature range is wide, contact the characteristics such as reliable, can be widely used in the instrument and equipment of deepwater environment, expanded the applicability of switch under multiple environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of contact chip assembly in the utility model;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is the assembly structure schematic diagram of the utility model housing and O-ring seals;
Fig. 5 is the structural representation of pull handle in the utility model;
Fig. 6 is contour structures schematic diagram of the present utility model.
In figure: 1-insulating case, 2-insulator A, 3-contacts annulus, 4-insulator B, 5-handle, 6-collar, 7-stage clip, 8-water proof ring, 9-pull handle, 10-shell, 11-O shape sealing ring, 12-packing ring, 13-nut, 14-contact chip assembly, 15-pedestal, 91-step, 101-limiting stand, 141-contact point
Embodiment
Below in conjunction with accompanying drawing, further describe the technical solution of the utility model, but described in claimed scope is not limited to.
As shown in Figures 1 to 6, a kind of reverse extending type switch described in the utility model, comprise pedestal 15, shell 10, nut 13 and packing ring 12, described pedestal 15 is connected by screw thread with shell 10, nut 13 and packing ring 12 respectively by thread set on shell 10, described pedestal 15 and shell 10 inside are provided with operating mechanism, sealing mechanism and switching circuit portion.This technology is by adopting operating mechanism, sealing mechanism and switching circuit portion, make product there is sealing grade high, operating temperature range is wide, contact the characteristics such as reliable, can be widely used in the instrument and equipment of deepwater environment, expanded the applicability of switch under multiple environment.
Described operating mechanism comprises handle 5 and is sleeved on successively the insulating case 1 of handle 5 lower ends, insulator A2, insulator B4 and collar 6, and is set with stage clip 7 in handle 5 upper ends; When assembling, insulating case 1, insulator A2, insulator B4 are inserted in to handle 5 successively, then are inserted in collar 6, and stage clip 7 is packed into the upper end of handle 5; Then through shell 10 and handle 5 screw thread positions, tighten to stage clip 7 with precompressed, and by the limiting stand 101 of shell 10, guarantee the total travel of switches, by above part, formed the operating mechanism of this switch.
Described sealing mechanism is comprised of water proof ring 8, pull handle 9 and O shape seal washer 11, and described water proof ring 8 is arranged in the annular groove on pull handle 9, and O shape seal washer 11 is arranged on shell 10; By sealing mechanism, can realize outer water-proof function and the inner waterproofing function of switch product, wherein the outer water-proof function of product is to realize by the installation panel extruding O shape seal washer 11 on shell 10; The inner waterproofing function of product mainly realizes by water proof ring 8 and the interference deflection of pull handle 9 and shell 10.
Described switching circuit portion by contact chip assembly 14 with contact annulus 3 and form, wherein contact chip assembly 14 is arranged on pedestal 15 inside, contact annulus 3 is sleeved on handle 5 lower ends, and between insulator A2 and insulator B4.When work, contact annulus 3 moves upward to certain stroke with handle 5 and contacts with contact chip assembly 14.
Switching circuit portion is reliable by following 2 contacts that improved product:
(1) on the contact chip assembly 14 of described switch, be provided with two contact points 141.This Redundancy Design can guarantee the validity of switch contact, has increased contact reliability;
(2) described contact annulus 3 is elastic-friction formula contact (being self-cleaning contact) with contacting of contact chip assembly 14.By fricting movement, can effectively remove the Adsorption of Organic layer between contact-making surface, guarantee that the contact of product is reliable.
In order to guarantee switch, can realize the waterproof requirement of (the about 600kPa of pressure) under the 60m depth of water, by step 91 is set on pull handle 9, thereby reduce the impact that current are split official seal water section, and two water proof rings 8 will have been filled on the pull handle of the anti-water section of switch 9, consider switch restoring force coordinates these two water proof rings 8 magnitude of interference with shell 10 and be designed to from top to bottom be ladder waterproof construction, the impact of current has further been alleviated in this design.
The lower end of described shell 10 is provided with limiting stand 101.By limiting stand 101, guarantee the total travel of switch.
Operation principle of the present utility model is: as shown in Figure 1, when pull handle 9 is upwards moved by external force, while moving to certain position, make contact ring 3 and contact chip assembly 14 connect the work that realizes switch, under the effect of the compressing force of putting aside at stage clip 7 after external force disappears, make pull handle 9 and the contact annulus 3 of switch move downward together, realize the reset of switch, i.e. the switch state that affranchises.In order to guarantee switch, can realize 60m(600kPa) waterproof requirement under the depth of water, by the step 91 arranging, can reduce the impact that current are split official seal water section on pull handle 9, and two water proof rings 8 on the pull handle 9 of the anti-water section of switch, have been filled, consider switch restoring force, the magnitude of interference that these two water proof rings 8 are coordinated with shell 10 is designed to from top to bottom be ladder waterproof construction, thereby has further alleviated the impact of current.The dynamic magnitude of interference of wherein going up water proof ring and shell 10 is monolateral 0.15mm, and the dynamic magnitude of interference of lower water proof ring and shell 10 is monolateral 0.20mm.And elect water proof ring 8 materials as G-208 cold gum, this material can meet product normally works at-40 ℃～+ 85 ℃, and sealing ring does not produce embrittlement.
Claims (10)
1. a reverse extending type switch, comprise pedestal (15), shell (10), nut (13) and packing ring (12), described pedestal (15) is connected by screw thread with shell (10), nut (13) and packing ring (12) are upper at shell (10) by thread set respectively, it is characterized in that: described pedestal (15) and shell (10) inside are provided with operating mechanism, sealing mechanism and switching circuit portion.
2. a kind of reverse extending type switch according to claim 1, it is characterized in that: described operating mechanism comprises handle (5), insulating case (1), insulator A(2), insulator B(4), collar (6) and stage clip (7), wherein insulating case (1), insulator A(2), insulator B(4) and collar (6) be sleeved on successively handle (5) lower end, stage clip (7) is sleeved on handle (5) upper end.
3. a kind of reverse extending type switch according to claim 1, it is characterized in that: described sealing mechanism is comprised of water proof ring (8), pull handle (9) and O shape seal washer (11), wherein water proof ring (8) is arranged in the annular groove on pull handle (9), and O shape seal washer (11) is arranged on shell (10).
4. a kind of reverse extending type switch according to claim 1, it is characterized in that: described switching circuit portion by contact chip assembly (14) with contact annulus (3) and form, wherein contact chip assembly (14) is arranged on pedestal (15) inside, contact annulus (3) is sleeved on handle (5) lower end, and is positioned at insulator A(2) and insulator B(4) between.
5. a kind of reverse extending type switch according to claim 4, is characterized in that: on described contact chip assembly (14), be provided with two contact points (141).
6. a kind of reverse extending type switch according to claim 4, is characterized in that: described contact annulus (3) is the contact of elastic-friction formula with contacting of contact chip assembly (14).
7. a kind of reverse extending type switch according to claim 3, is characterized in that: step (91) is set on described pull handle (9).
8. a kind of reverse extending type switch according to claim 1, is characterized in that: the lower end of described shell (10) is provided with limiting stand (101).
9. a kind of reverse extending type switch according to claim 3, is characterized in that: described water proof ring (8) comprises water proof ring and lower water proof ring, and upper water proof ring and lower water proof ring are from top to bottom ladder waterproof construction with the magnitude of interference that shell (10) coordinates.
10. a kind of reverse extending type switch according to claim 9, is characterized in that: the dynamic magnitude of interference of described upper water proof ring and shell (10) is monolateral 0.15mm, and the dynamic magnitude of interference of lower water proof ring and shell (10) is monolateral 0.20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147951.7U CN203774130U (en) | 2014-03-28 | 2014-03-28 | Reversely-pulled switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147951.7U CN203774130U (en) | 2014-03-28 | 2014-03-28 | Reversely-pulled switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774130U true CN203774130U (en) | 2014-08-13 |
Family
ID=51291288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147951.7U Expired - Fee Related CN203774130U (en) | 2014-03-28 | 2014-03-28 | Reversely-pulled switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871765A (en) * | 2014-03-28 | 2014-06-18 | 贵州振华华联电子有限公司 | Reverse pulling type switch |
| CN104465178A (en) * | 2014-12-10 | 2015-03-25 | 贵州振华华联电子有限公司 | Button switch |
-
2014
- 2014-03-28 CN CN201420147951.7U patent/CN203774130U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871765A (en) * | 2014-03-28 | 2014-06-18 | 贵州振华华联电子有限公司 | Reverse pulling type switch |
| CN103871765B (en) * | 2014-03-28 | 2016-06-15 | 贵州振华华联电子有限公司 | A kind of reversely extending type switch |
| CN104465178A (en) * | 2014-12-10 | 2015-03-25 | 贵州振华华联电子有限公司 | Button switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20170328 |