CN201773764U - Novel anti-falling switch - Google Patents
Novel anti-falling switch Download PDFInfo
- Publication number
- CN201773764U CN201773764U CN2010205126450U CN201020512645U CN201773764U CN 201773764 U CN201773764 U CN 201773764U CN 2010205126450 U CN2010205126450 U CN 2010205126450U CN 201020512645 U CN201020512645 U CN 201020512645U CN 201773764 U CN201773764 U CN 201773764U
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- swing arm
- pallet
- housing
- sensitive switch
- switch
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Abstract
The utility model discloses a novel anti-falling switch comprising a shell, a microswitch assembly arranged in the shell and an anti-falling mechanism, wherein the anti-falling mechanism comprises a steel ball arranged in the funneled upper cavity of the shell; the microswitch assembly comprises a microswitch, a moveable arm and a tray, one end of the moveable arm is hinged with the microswitch, the other end of the moveable arm is moveable, one side face of the moveable arm, adjacent to the hinged end, comes in contact with the contact head of the microswitch, the moveable end of the moveable arm is connected with the tray, and the steel ball is disengaged from the tray beyond the range of inclination of the shell; and under the action of restoration of the contact head of the microswitch, the tray and the moveable arm are lifted upwards to cut off the circuit. In the utility model, as the moveable arm, a support piece and the microswitch are integrally connected, the action process of the novel anti-falling switch is simple; a restoring spring is omitted during the pressure conduction of the steel ball so that poor installation can be reduced; and simultaneously the structure of the tray endues the switch with the advantages of stability, sensitivity, reliability, uniformity, handfeel, sound attenuation, and the like.
Description
Technical field
The utility model discloses a kind of novel anti-dumping switch, divide by International Patent Classification (IPC) (IPC) and to belong to the sensitive switch class manufacturing technology field of adopting on the electrical equipment, especially relate to a kind of improvement structure that is used for the steel-ball type anti-dumping switch that adopts on household electrical appliance such as warm-air drier, electric fan and electric heating installation using oil as medium and other the electrical equipment.
Background technology
Anti-dumping switch, be widely adopted on household electrical appliance such as electric fan, warm-air drier, electric heating installation using oil as medium, its function is that when the careless run-off the straight of electrical appliance is promptly fallen down danger anti-dumping switch is with main frame snap action under gravitate, cut off the electricity supply, avoid causing danger.The steel-ball type anti-dumping switch is to roll with the compressing tablet contact or separate by steel ball, control sensitive switch action and switch on or off power supply.
Chinese patent literature ZL200320120575.4 discloses a kind of totally enclosed type anti-dumping switch, as shown in Figure 1, this totally enclosed type switch is a kind of steel-ball type anti-dumping switch, the end that cooperates with steel ball B of compressing tablet A wherein, the perforation that is provided with by compressing tablet A, the shank of Plastic pallet C is worn wherein, be connected as a single entity through riveting, when the household electrical appliance run-off the straight, its course of action is: steel ball B rolls, Plastic pallet C and back-moving spring D presses down, compressing tablet A displacement, this body action of sensitive switch, and this structure has the following disadvantages:
1, this structural design has back-moving spring, its objective is and guarantee that compressing tablet has enough dynamics to drive sensitive switch and moves, but its effect is not essential in the actual act process, and, because the existence of back-moving spring, not only increase the installation difficulty of whole switch, and cause when compressing tablet is installed, be prone to natural contractility because of back-moving spring and the stressed spacing hole of deviating from housing of compressing tablet produced make bad;
2, the transmission link of power is longer, according to using and experimental study observation, steel ball, compressing tablet, back-moving spring and a series of effects of sensitive switch button, cause anti-dumping switch to have stuck easily or the insensitive possibility of break-make, and existing compressing tablet one end cooperation steel ball, the face that contacts with back-moving spring is the plane, so, compressing tablet forms a step-like laminated structure for cooperating steel ball and back-moving spring, and it was sensitive inadequately by key contacts with sensitive switch when compressing tablet was compressed by steel ball, has influence on to prevent the effect of toppling over.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of rational in infrastructure, safe and reliable novel anti-dumping switch, and this switch omits the transmission link of power between steel ball and the sensitive switch, thereby guarantees anti-sensitivity of toppling over.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of novel anti-dumping switch comprises housing and housing interior sensitive switch assembly and anti-tipping mechanism is set, wherein:
Anti-tipping mechanism comprises a gravity ball, and this gravity ball is arranged in the epicoele of housing inner funnel shape;
The sensitive switch assembly, comprise sensitive switch, swing arm and pallet, swing arm one end and sensitive switch are articulated as one, swing arm end in addition is movable end, one side of the contiguous hinged end of swing arm touches mutually with the contact of sensitive switch, the swing arm movable end connects pallet, pallet is positioned at the bottom of housing epicoele funnel, the gravity ball slips into funnel in the housing slant range bottom presses down pallet, pallet is touched the contact of sensitive switch and turning circuit with swing arm, the gravity ball breaks away from pallet outside the housing slant range, pallet and swing arm upwards lift at the contact reset response of sensitive switch and cut off circuit.
Further, the flip angle of described housing slant range breaks away from greater than 50 ° of gravity balls and pallet; The angle that resets of gravity ball and pallet is less than 20 °, and the above-mentioned flip angle and the angle that resets are starting point with the housing vertical axis, and the operating angle error of the flip angle and the angle that resets is ± 5 °.
Further, described swing arm connects as one by a support chip and sensitive switch, and support chip is fixed on the sensitive switch by symmetrical four button bits, and the other end of support chip directly forms convenient and the hinged fulcrum of swing arm.
Further, described support chip directly forms with swing arm and makes things convenient for the fulcrum of swing arm activity to adopt hinged button bit formula to cooperate.
Further, it is that one is also passed through screw lock that described housing is fastened by the base and cover plate, is provided with the epicoele of ccontaining gravity ball and the cavity of resorption of ccontaining sensitive switch assembly in the housing, and the cavity between epicoele and the cavity of resorption is used for ccontaining pallet and swing arm.
Further, described swing arm is made up of the pressure section of touching, linkage section and pressure-bearing section, presses the section of touching to touch mutually with the contact of sensitive switch, and it contacted in the housing on the inclined plane when linkage section disconnected at switch, and the pressure-bearing section is used to connect pallet.
Further, described gravity ball is steel ball or ball, and the kinetic moment that the gravity of gravity ball produces in the housing slant range is greater than the moment of resistance of the contact reset response power generation of sensitive switch.
Further, described pallet is the software indent card that plastic cement material processes, and tray bottom is extended a tray handle and is arranged in the centre bore of swing arm movable end, and the head riveting of tray handle is fixed on the swing arm pallet.
The utility model is structure because swing arm, support chip and sensitive switch are in one-piece connection, and omits back-moving spring when steel ball pressure conducts, and has following useful effect:
1, steel ball rolling, the action of sensitive switch assembly, course of action is succinct;
2, owing to saved back-moving spring, it is bad to have reduced installation, has saved cost simultaneously again;
3, pallet of the present utility model, itself and steel ball contact area are bigger, and the soft material of pallet indent does not have noise when contacting with steel ball, makes switch have advantages such as stability, sensitivity, reliability, consistency, feel, noise reduction.
Description of drawings
Fig. 1 is existing a kind of anti-dumping switch schematic diagram;
Fig. 2 is that the utility model steel ball contacts schematic diagram when pressing down pallet;
Fig. 3 is the utility model end view;
Fig. 4 is the utility model front view;
Fig. 5 is the utility model rearview.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: see also Fig. 2 to Fig. 5, a kind of novel anti-dumping switch, comprise housing and housing interior sensitive switch assembly and anti-tipping mechanism are set, anti-tipping mechanism comprises a gravity ball 3, this gravity ball 3 is arranged in the epicoele 71 of housing inner funnel shape, the gravity ball is steel ball or ball, and the kinetic moment that the gravity of gravity ball produces in the housing slant range is greater than the moment of resistance of the contact reset response power generation of sensitive switch.The sensitive switch assembly comprises sensitive switch 6, swing arm 4 and pallet 8, swing arm 4 one ends and sensitive switch 6 are articulated as one, swing arm end in addition is movable end, one side of swing arm 4 contiguous hinged ends touches mutually with the contact 61 of sensitive switch, the swing arm movable end connects pallet 8, pallet 8 is positioned at the bottom of housing epicoele funnel, gravity ball 3 slips into funnel in the housing slant range bottom presses down pallet 8, pallet 8 is touched the contact 61 of sensitive switch and turning circuit with swing arm 4, the gravity ball breaks away from pallet outside the housing slant range, pallet and swing arm upwards lift at the contact reset response of sensitive switch and cut off circuit.The flip angle of housing slant range is during greater than 50 °, and gravity ball and pallet break away from; The angle that resets of gravity ball and pallet is for being less than 20 °, and the above-mentioned flip angle and the angle that resets are starting point with the housing vertical axis, anti-dumping switch to around either direction topple over, and flip angle and the operating angle error of angle of resetting are ± 5 °.
See also Fig. 2, swing arm 4 connects as one with sensitive switch 6 by a support chip 5, support chip 5 is by the one side of symmetrical four button bits 51, other two button bits of 52(symmetry in Fig. 2) be fixed on the sensitive switch, the other end of support chip 5 directly forms convenient and the hinged fulcrum of swing arm.Support chip 5 directly forms with swing arm 4 and makes things convenient for the fulcrum of swing arm activity to adopt hinged button bit formula to cooperate.
See also Fig. 3, Fig. 4 and Fig. 5, it is that one is also by screw 7 lockings that described housing is fastened by pedestal 1 and cover plate 2, be provided with the epicoele 71 of ccontaining gravity ball and the cavity of resorption of ccontaining sensitive switch assembly in the housing, the cavity 72 between epicoele and the cavity of resorption is used for ccontaining pallet and swing arm.
See also Fig. 2, described swing arm 4 is made up of the pressure section of touching 41, linkage section 42 and pressure-bearing section 43, presses the section of touching to touch mutually with the contact of sensitive switch, and it contacted in the housing on the inclined plane when linkage section disconnected at switch, and the pressure-bearing section is used to connect pallet.
The utility model is structure because swing arm, support chip and sensitive switch are in one-piece connection, and steel ball rolls, the action of sensitive switch assembly, and course of action is succinct; And omit back-moving spring when steel ball pressure conducts, it is bad to have reduced installation, has saved cost simultaneously again; Pallet of the present utility model simultaneously, itself and steel ball contact area are bigger, and the soft material of pallet indent does not have noise when contacting with steel ball, makes switch have advantages such as stability, sensitivity, reliability, consistency, feel, noise reduction.
It is as follows that the utility model adds the requirement in man-hour:
1, plastic rubber member surface does not have defectives such as shrink, crackle, bubble, top be white, and color is a black.
2, the body cooperation is airtight, compact, does not have obvious gap, and carve characters in the surface or lettering identifies high-visible.
3, switching manipulation is safe and reliable, and clear nimbly and freely, break-make is smooth and easy.
4, switch front, rear, left and right dump angle is not more than 50 ° and is not less than 25 ° and carries out disjunction, and the angle that resets is greater than 50 °, action error angle ± 5 °, and sensitive switch action dynamics is 62～77gf.
5, contact resistance≤40m Ω; Insulation resistance 〉=100M Ω (500VDC); Leakage current≤0.25mA.
6, electrical endurance: 〉=1 ten thousand time.
7, properties of product and installation meet GB15092.1-2003, IEC61058-1, UL1054 national standard.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (8)
1. novel anti-dumping switch is characterized in that: comprises housing and sensitive switch assembly and anti-tipping mechanism in the housing is set, wherein:
Anti-tipping mechanism comprises a gravity ball, and this gravity ball is arranged in the epicoele of housing inner funnel shape;
The sensitive switch assembly, comprise sensitive switch, swing arm and pallet, swing arm one end and sensitive switch are articulated as one, swing arm end in addition is movable end, one side of the contiguous hinged end of swing arm touches mutually with the contact of sensitive switch, the swing arm movable end connects pallet, pallet is positioned at the bottom of housing epicoele funnel, the gravity ball slips into funnel in the housing slant range bottom presses down pallet, pallet is touched the contact of sensitive switch and turning circuit with swing arm, the gravity ball breaks away from pallet outside the housing slant range, pallet and swing arm upwards lift at the contact reset response of sensitive switch and cut off circuit.
2. novel anti-dumping switch according to claim 1 is characterized in that: the flip angle of described housing slant range breaks away from greater than 50 ° of gravity balls and pallet; The angle that resets of gravity ball and pallet is less than 20 °, and the above-mentioned flip angle and the angle that resets are starting point with the housing vertical axis, and the operating angle error of the flip angle and the angle that resets is ± 5 °.
3. novel anti-dumping switch according to claim 1, it is characterized in that: described swing arm connects as one by a support chip and sensitive switch, support chip is fixed on the sensitive switch by symmetrical four button bits, and the other end of support chip directly forms convenient and the hinged fulcrum of swing arm.
4. novel anti-dumping switch according to claim 1 is characterized in that: described support chip directly forms with swing arm and makes things convenient for the fulcrum of swing arm activity to adopt hinged button bit formula to cooperate.
5. novel anti-dumping switch according to claim 1, it is characterized in that: described housing is one and is passed through screw lock by base and cover plate fastening, be provided with the epicoele of ccontaining gravity ball and the cavity of resorption of ccontaining sensitive switch assembly in the housing, the cavity between epicoele and the cavity of resorption is used for ccontaining pallet and swing arm.
6. novel anti-dumping switch according to claim 1, it is characterized in that: described swing arm is made up of the pressure section of touching, linkage section and pressure-bearing section, the pressure section of touching touches mutually with the contact of sensitive switch, and it contacted in the housing on the inclined plane when linkage section disconnected at switch, and the pressure-bearing section is used to connect pallet.
7. novel anti-dumping switch according to claim 1 is characterized in that: described gravity ball is steel ball or ball, and the kinetic moment that the gravity of gravity ball produces in the housing slant range is greater than the moment of resistance of the contact reset response power generation of sensitive switch.
8. novel anti-dumping switch according to claim 1, it is characterized in that: described pallet is the software indent card that plastic cement material processes, tray bottom is extended a tray handle and is arranged in the centre bore of swing arm movable end, and the head riveting of tray handle is fixed on the swing arm pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205126450U CN201773764U (en) | 2010-09-01 | 2010-09-01 | Novel anti-falling switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205126450U CN201773764U (en) | 2010-09-01 | 2010-09-01 | Novel anti-falling switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773764U true CN201773764U (en) | 2011-03-23 |
Family
ID=43753608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205126450U Expired - Fee Related CN201773764U (en) | 2010-09-01 | 2010-09-01 | Novel anti-falling switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111223272A (en) * | 2020-03-04 | 2020-06-02 | 福建工程学院 | Portable fall detection sensor |
-
2010
- 2010-09-01 CN CN2010205126450U patent/CN201773764U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111223272A (en) * | 2020-03-04 | 2020-06-02 | 福建工程学院 | Portable fall detection sensor |
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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 |
Granted publication date: 20110323 Termination date: 20140901 |
|
| EXPY | Termination of patent right or utility model |