CN201498410U - Brake crank on-off switch - Google Patents
Brake crank on-off switch Download PDFInfo
- Publication number
- CN201498410U CN201498410U CN2009201920157U CN200920192015U CN201498410U CN 201498410 U CN201498410 U CN 201498410U CN 2009201920157 U CN2009201920157 U CN 2009201920157U CN 200920192015 U CN200920192015 U CN 200920192015U CN 201498410 U CN201498410 U CN 201498410U
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- groove
- feeler lever
- movable feeler
- switch
- brake crank
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Abstract
The utility model relates to a brake crank on-off switch, which mainly solves the problems that the existing brake crank employs single movable contact rod to communicate resulting in poor electrical conductivity of a switch, low safety performance, short service life and the like. The brake crank on-off switch is characterized in that a press button is provided with a press rod and movable contact rod mounting seats which are symmetrically arranged at two sides of the press rod; a through groove is arranged in the movable contact rod mounting seat at the two sides of the press rod; a movable rod penetrates through the through groove, and both ends of the movable rod are arranged at two sides of the through groove; the top pressing spring of a top pressing movable contact rod is arranged in each through groove; the bottom of the press rod is provided an offsetting spring mounting seat; and an offsetting spring is fixed in the offsetting spring mounting seat. In the brake crank on-off switch, the movable contact rod is additionally mounted in the press button, so two groups of movable contact rods not only can improve the electrical conductivity of the switch but also can improve the security of the switch, and can reduce the occurrence of electric current overload to prolong the service life of the switch.
Description
Technical field
The utility model relates to a kind of switch, relates to a kind of brake crank on-off switch in particular, is mainly used in motorcycle or the electric motor car.
Background technology
Brake crank on-off switch is applied on electric motor car or the motorcycle mostly, the break-make of control electric motor car or motorcycle brake lamp; At present, Chinese patent discloses a kind of brake lever lapping switch (patent No.: ZL200620108005.7 notification number: CN200950405Y), the brake lever lapping switch of this patent record includes shell, base, handle, haptic element and moving contact, below described handle, be provided with groove, be provided with spring tray in the base, this spring tray below is provided with big spring and is connected with base, is provided with a little spring in the spring tray, and moving contact places the little spring top and just places in the groove of handle below; Its operation principle is, at first to firmly make handle promote spring tray compression big spring, owing to be subjected to the influence of the handle grooves degree of depth, at this moment, moving contact does not separate with static palping foot, and have only when the bottom portion of groove of handle touches moving contact and when beginning to compress little spring in the spring, just can make moving contact separate the break-make that realizes switch with fixed contact; Adopt this structure,, prevent to bump switch knob by mistake and cause the situation of switch on and off to take place though can strengthen the effective travel of switch; But because existing switch adopts single moving contact to realize switch on and off, its moving contact is relative with the contact area of stationary contact bar less like this, causes its poor electric conductivity, and phenomenons such as current overload easily take place, thereby reduces the security performance and the useful life of switch; Secondly, because volume of switch is less, adopt this structure, be unfavorable for that the assembling of movable feeler lever and little spring and assembling benefit are lower, production cost is higher relatively.
Summary of the invention
Adopt single movable feeler lever to be communicated with in order to solve existing brake crank on-off switch, cause the poor electric conductivity of switch, technical problem such as security performance is low, and useful life is short; The utility model provides a kind of brake crank on-off switch, and its electric conductivity is strong, and the security performance height can effectively prevent the current overload phenomenon; Secondly, also can make things convenient for the installation of movable feeler lever and top pressure spring, the working efficiency when improving assembling reduces corresponding cost.
For solving above technical problem, the technical scheme that the utility model is taked is a kind of brake crank on-off switch, it includes shell and has the pedestal of a cavity volume and place the interior button of pedestal cavity volume, be provided with a back-moving spring between described button bottom and the pedestal cavity volume bottom, described pedestal internal fixation is provided with at least two group static palping foots, be provided with the strip groove in the described button and in this groove, be provided with the movable feeler lever that is communicated with static palping foot, in described groove, be provided with a top pressure spring below the movable feeler lever; It is characterized in that described button has a pressing lever and movable feeler lever mount pad, described movable feeler lever mount pad is symmetricly set on the pressing lever both sides, described groove is arranged in the movable feeler lever mount pad of pressing lever both sides, described movable feeler lever passes the both sides that groove and its two ends place groove, the described top pressure spring that is equipped with a roof pressure movable feeler lever in the groove of respectively organizing, described pressing lever bottom is provided with a back-moving spring mount pad, and described back-moving spring is fixed in this back-moving spring mount pad.
Further, described movable feeler lever is a cylinder, and the inwall near movable feeler lever one end in the described groove is an arc surface.
Further, its top end face of an end that has arc surface in the described groove is provided with the young breach of a collar extension imperial palace, and this breach runs through this end face.
Further, be provided with in the described groove on its top end face of an end of breach and also be provided with a square aperture, this square aperture degree of depth is identical with the groove height, described top pressure spring place in this square aperture and the width of its external diameter and square aperture suitable.
Further, the width of described square aperture is greater than the width of groove.
Further, be provided with a counterbore in the described pressing lever, this counterbore constitutes described back-moving spring mount pad.
Further, described static palping foot has a conductive plate and pin and is the setting of " T " font, and described conductive plate bottom is provided with the gap of two groups of semicirculars in shape, and these two groups of gap are symmetricly set on the both sides of pin and its diameter and movable feeler lever diameter and are complementary.
Further, both sides respectively are provided with a mounting groove in the described pedestal cavity volume, be provided with a spacing platform in this mounting groove, be provided with a jack in the described spacing platform, described static palping foot pin passes this jack and places outside the pedestal, and the bottom of described static palping foot conductive plate fits with the spacing platform of mounting groove and conductive plate top end face and pedestal top end face maintain an equal level mutually; The described mounting groove inboard of respectively organizing is equipped with two groups of guide grooves that limit the movable feeler lever upper and lower displacement, and this guide groove places spacing platform both sides.
Further, an end that has arc surface, breach and square aperture in the described groove is the groove top, and described movable feeler lever is tangent with the arc surface on groove top and compress and cooperate under the ordering about of top pressure spring.
Further, an end that has arc surface, breach and square aperture in the described groove is the groove bottom, and described movable feeler lever is tangent with the arc surface of groove bottom and compress and cooperate under the ordering about of top pressure spring
The beneficial effects of the utility model are to install a movable feeler lever in knob additional, and the electric conductivity that two groups of movable feeler levers not only can improve switch is installed, and simultaneously, also can improve the fail safe of switch, reduce the generation of current overload phenomenon, thereby prolong the useful life of switch.
Description of drawings
Fig. 1 is the main TV structure figure of a kind of brake crank on-off switch of the utility model embodiment
Fig. 2 is the side-looking structure chart of a kind of brake crank on-off switch of the utility model embodiment
Fig. 3 analyses and observe amplification assumption diagram for A-A place among Fig. 1
Fig. 4 analyses and observe amplification assumption diagram for B-B place among Fig. 3
Fig. 5 is the amplification assumption diagram of analysing and observe of the user mode of a kind of brake crank on-off switch of the utility model embodiment
Fig. 6 is the main TV structure figure of the utility model embodiment pedestal
Fig. 7 is a C-C place sectional structure chart among Fig. 6
Fig. 8 is a D-D place sectional structure chart among Fig. 6
Fig. 9 is the plan structure figure of the utility model embodiment knob
Figure 10 analyses and observe amplification assumption diagram for H-H place among Figure 10
Figure 11 is the three-dimensional structure diagram of the utility model embodiment knob
Figure 12 be the utility model embodiment static palping foot main TV structure figure
Figure 13 analyses and observe mounting structure figure for the normally closed pattern of a kind of brake crank on-off switch of the utility model embodiment
Specific embodiments
Below in conjunction with accompanying drawing the utility model execution mode is described further:
As shown in figure 1 to figure 13, a kind of brake crank on-off switch of the utility model, it includes shell 1 and has the pedestal 2 of a cavity volume 21 and place button 3 in the pedestal cavity volume 21, be provided with a back-moving spring 4 between described button 3 bottoms and pedestal cavity volume 21 bottoms, described pedestal 2 internal fixation are provided with at least two group static palping foots 5, be provided with strip groove 321 in the described button 3 and in this groove 321, be provided with the movable feeler lever 6 that is communicated with static palping foot 5, in described groove 321, be provided with a top pressure spring 7 below the movable feeler lever 6; Adopt single movable feeler lever 6 to be communicated with in order to solve existing brake crank on-off switch, cause the poor electric conductivity of switch, security performance is low, technical problems such as useful life is short, described button 3 has a pressing lever 31 and movable feeler lever mount pad 32, described movable feeler lever mount pad 32 is symmetricly set on pressing lever 31 both sides, described groove 321 is arranged in the movable feeler lever mount pad 32 of pressing lever 31 both sides, described movable feeler lever 6 passes the both sides that groove 321 and its two ends place groove 321, the described top pressure spring 7 that is equipped with a roof pressure movable feeler lever 6 in the groove 321 of respectively organizing, described pressing lever 31 bottoms are provided with a back-moving spring mount pad 33, described back-moving spring 4 is fixed in this back-moving spring mount pad 33, adopts this structure, and two groups of movable feeler levers 6 can be installed, and the contact area that two groups of movable feeler levers 6 not only can increase movable feeler lever 6 and static palping foot 5 is installed, improve the electric conductivity of switch, simultaneously, also can improve the fail safe of switch, reduce the generation of current overload phenomenon, thereby prolong the useful life of switch.
In the present embodiment, for prevent that movable feeler lever 6 from swinging in groove 321, influence the electric conductivity of switch, described movable feeler lever 6 is a cylinder, inwall near movable feeler lever 6 one ends in the described groove 321 is an arc surface 3211, because movable feeler lever 6 is a cylinder, in 3211 tangent cooperations of arc surface of the face of cylinder and groove 321 of when assembling movable feeler lever 6, adopt arc surface 3211 structures, can prevent that not only movable feeler lever 6 from swinging, simultaneously, also can play the assist location effect, make things convenient for cooperating of movable feeler lever 6 and static palping foot 5; Certainly, also can not adopt arc surface 3211, such as triangle can reach identical purpose equally, but owing to adopt arc surface 3211 convenient processing, therefore, the execution mode of present embodiment is a preferred implementation.
In the present embodiment, for making things convenient for the installation of movable feeler lever 6, its top end face of an end that has arc surface 3211 in the described groove 321 is provided with the young breach 3212 of a collar extension imperial palace, this breach 3212 runs through this end face, adopt the groove 321 of a this end opening, when movable feeler lever 6 is installed, only need firmly push movable contact 6 bars, just movable feeler lever 6 can be fixed in the groove 321; Certainly, also can not establish breach 3212, such as closed structure around adopting, movable feeler lever 6 is passed groove 321, can reach identical purpose equally, but owing to adopt closed structure all around, top pressure spring 7 inconvenience of movable feeler lever 6 are installed, and therefore, the execution mode of present embodiment is a preferred implementation.
In the present embodiment, for making things convenient for the installation of top pressure spring 7, working efficiency when improving assembling, be provided with in the described groove 321 on its top end face of an end of breach 3212 and also be provided with a square aperture 3213, the degree of depth of this square aperture 3213 is highly identical with groove 321, described top pressure spring 7 place in this square aperture 3213 and the width of its external diameter and square aperture 3213 suitable, adopt this structure, in the square aperture 3213 of groove 321 of can earlier top pressure spring 7 being packed into, again movable feeler lever 6 firmly is pressed into to groove 321 from breach 3212, can greatly facilitate top pressure spring 7 and movable feeler lever 6 installations like this, and can obviously improve the assembling benefit, reduce corresponding cost.
In the present embodiment, for prevent that top pressure spring 7 from laterally coming off under the elastic force effect, the width of described square aperture 3213 is greater than the width of groove 321, because the width of square aperture 3213 is greater than groove 321 width, and groove 321 sidewalls just can play certain position-limiting action to top pressure spring 7, thereby can prevent effectively that top pressure spring 7 from laterally coming off under the elastic force effect, improve the overall work stability of switch; Certainly, the width of square aperture 3213 also can be identical with groove 321 width, but because the width of square aperture 3213 is consistent with groove 321 width, just do not have limit function, and therefore, the execution mode of present embodiment is a preferred implementation.
In the present embodiment, depend on the useful life of back-moving spring 4 useful life of brake crank on-off switch, and be directly proportional with himself length the useful life of back-moving spring 4, also longer relatively long more service time as spring; For improving the whole service life of brake lever switch, be provided with a counterbore 311 in the described pressing lever 31, this counterbore 311 constitutes described back-moving spring mount pad 33, described back-moving spring 4 place in this spring mounting seat 33 and with the interference fit that offsets of pedestal 2 cavity volumes 21 bottoms; Because existing brake crank on-off switch below is provided with a spring tray, back-moving spring 4 one ends are fixed on the spring tray, so just shortened the distance between knob 3 bottoms and pedestal cavity volume 21 bottoms greatly, therefore the back-moving spring of its use is shorter, thereby has shortened the whole service life of brake crank on-off switch; And adopt this structure, and back-moving spring 4 one ends are fixed on the inside of pressing torsion bar 31, so not only can make things convenient for the installation of back-moving spring 4, simultaneously, also can increase the length of back-moving spring 4 greatly, thereby prolong the whole service life of brake lever switch.
In the present embodiment, for farthest guaranteeing the contact area of movable feeler lever 6 and static palping foot 5, improve the monolithic conductive performance of switch, described static palping foot 5 has a conductive plate 51 and pin 52 and is the setting of " T " font, described conductive plate 51 bottoms are provided with the gap 511 of two groups of semicirculars in shape, these two groups of gap 511 are symmetricly set on the both sides of pin 52 and its diameter and movable feeler lever 6 diameters and are complementary, adopt semicircle gap 511 structures, can farthest increase the contact area of movable feeler lever 6 and static palping foot 5, thereby further improve the electric conductivity of switch; Certainly, also can not adopt semicircle gap 511, such as adopt triangle or square, can reach identical purpose equally, concrete what shape that adopts can be decided according to the shape of movable feeler lever 6, but owing to movable feeler lever 6 in this enforcement is a cylinder, therefore, adopt semicircle gap 511 to be preferred implementation of the present utility model.
In the present embodiment, for making things convenient for the installation of static palping foot 5, both sides respectively are provided with a mounting groove 22 in described pedestal 2 cavity volumes 21, described static palping foot 5 snaps in this mounting groove 22, for making things convenient for the fixing of static palping foot 5, be provided with a spacing platform 221 in the described mounting groove 22, be provided with a jack 222 in the described spacing platform 221, described static palping foot 5 pins 52 pass this jack 222 and place outside the pedestal 2, and the bottom of described static palping foot conductive plate 51 fits with the spacing platform 221 of mounting groove 22 and static palping foot conductive plate 51 top end faces and pedestal 2 top end faces maintain an equal level mutually; For prevent that movable feeler lever 6 from waving in pedestal, cause two movable feeler levers, 6 level heights to differ, influence the contact performance of movable feeler lever 6 and static palping foot 5, described mounting groove 22 inboards of respectively organizing are equipped with two groups of guide grooves 223 that limit movable feeler lever 6 upper and lower displacements, and this guide groove 223 places spacing platform 221 both sides, adopts this structure, the installation that not only can make things convenient for static palping foot 5 is with fixing, simultaneously, also can effectively avoid the level height of two groups of movable feeler levers 6 to differ, thereby can guarantee the contact performance of movable feeler lever 6 and static palping foot 5.
Brake crank on-off switch generally has two kinds of Installation Modes, and one is open in usual, and promptly initial condition is for opening; It two is a normally closed type, and promptly initial condition is for closing; In the present embodiment, an end that has arc surface 3211, breach 3212 and square aperture 3213 in the described groove 321 is groove 321 tops, described movable feeler lever 6 is tangent with the arc surface 3211 on groove 321 tops and compress and cooperate under the ordering about of top pressure spring 7, because static palping foot 5 is fixed on the opening part of pedestal 2, arc surface 3211, breach 3212 and square aperture 3213 are arranged on groove 321 tops, promptly constitute the normal on-mode of switch; Certainly, also can arc surface 3211 will be had in the groove 321, one end of breach 3212 and square aperture 3213 is located at groove 321 bottoms, described movable feeler lever 6 is tangent with the arc surface 3211 of groove 321 bottoms and compress and cooperate under the ordering about of top pressure spring 7, can reach identical purpose equally, but only need to be arranged on the top of conductive plate 51 and static palping foot 5 is fixed on the normally closed pattern that switch just can be realized in pedestal 2 bottoms with spacing platforms 221 cancellations in pedestal 2 mounting grooves 22 and with two semicircle gap 511 of static palping foot 5, concrete which kind of Installation Modes that adopts can be decided according to the actual requirements.
The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.
Claims (10)
1. brake crank on-off switch, it includes shell and has the pedestal of a cavity volume and place the interior button of pedestal cavity volume, be provided with a back-moving spring between described button bottom and the pedestal cavity volume bottom, described pedestal internal fixation is provided with at least two group static palping foots, be provided with the strip groove in the described button and in this groove, be provided with the movable feeler lever that is communicated with static palping foot, in described groove, be provided with a top pressure spring below the movable feeler lever; It is characterized in that described button has a pressing lever and movable feeler lever mount pad, described movable feeler lever mount pad is symmetricly set on the pressing lever both sides, described groove is arranged in the movable feeler lever mount pad of pressing lever both sides, described movable feeler lever passes the both sides that groove and its two ends place groove, the described top pressure spring that is equipped with a roof pressure movable feeler lever in the groove of respectively organizing, described pressing lever bottom is provided with a back-moving spring mount pad, and described back-moving spring is fixed in this back-moving spring mount pad.
2. a kind of brake crank on-off switch according to claim 1 is characterized in that described movable feeler lever is a cylinder, and the inwall near movable feeler lever one end in the described groove is an arc surface.
3. a kind of brake crank on-off switch according to claim 2 is characterized in that its top end face of an end that has arc surface in the described groove is provided with the young breach of a collar extension imperial palace, and this breach runs through this end face.
4. a kind of brake crank on-off switch according to claim 3, it is characterized in that being provided with in the described groove on its top end face of an end of breach and also be provided with a square aperture, this square aperture degree of depth is identical with the groove height, described top pressure spring place in this square aperture and the width of its external diameter and square aperture suitable.
5. a kind of brake crank on-off switch according to claim 4 is characterized in that the width of the width of described square aperture greater than groove.
6. a kind of brake crank on-off switch according to claim 5 is characterized in that being provided with in the described pressing lever counterbore, and this counterbore constitutes described back-moving spring mount pad.
7. according to each described a kind of brake crank on-off switch in the claim 1～6, it is characterized in that described static palping foot has a conductive plate and pin and is the setting of " T " font, described conductive plate bottom is provided with the gap of two groups of semicirculars in shape, and these two groups of gap are symmetricly set on the both sides of pin and its diameter and movable feeler lever diameter and are complementary.
8. a kind of brake crank on-off switch according to claim 7, it is characterized in that both sides respectively are provided with a mounting groove in the described pedestal cavity volume, be provided with a spacing platform in this mounting groove, be provided with a jack in the described spacing platform, described static palping foot pin passes this jack and places outside the pedestal, and the bottom of described static palping foot conductive plate fits with the spacing platform of mounting groove and conductive plate top end face and pedestal top end face maintain an equal level mutually; The described mounting groove inboard of respectively organizing is equipped with two groups of guide grooves that limit the movable feeler lever upper and lower displacement, and this guide groove places spacing platform both sides.
9. a kind of brake crank on-off switch according to claim 8, an end that it is characterized in that having in the described groove arc surface, breach and square aperture is the groove top, and described movable feeler lever is tangent with the arc surface on groove top and compress and cooperate under the ordering about of top pressure spring.
10. a kind of brake crank on-off switch according to claim 8, an end that it is characterized in that having in the described groove arc surface, breach and square aperture is the groove bottom, and described movable feeler lever is tangent with the arc surface of groove bottom and compress and cooperate under the ordering about of top pressure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201920157U CN201498410U (en) | 2009-09-01 | 2009-09-01 | Brake crank on-off switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201920157U CN201498410U (en) | 2009-09-01 | 2009-09-01 | Brake crank on-off switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498410U true CN201498410U (en) | 2010-06-02 |
Family
ID=42441611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201920157U Expired - Fee Related CN201498410U (en) | 2009-09-01 | 2009-09-01 | Brake crank on-off switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640139B (en) * | 2009-09-01 | 2011-11-23 | 姜贤泉 | Brake crank on-off switch |
| CN103745843A (en) * | 2013-11-25 | 2014-04-23 | 中航光电科技股份有限公司 | Double-redundancy physical separating stroke control switch |
-
2009
- 2009-09-01 CN CN2009201920157U patent/CN201498410U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640139B (en) * | 2009-09-01 | 2011-11-23 | 姜贤泉 | Brake crank on-off switch |
| CN103745843A (en) * | 2013-11-25 | 2014-04-23 | 中航光电科技股份有限公司 | Double-redundancy physical separating stroke control switch |
| CN103745843B (en) * | 2013-11-25 | 2016-03-02 | 中航光电科技股份有限公司 | A kind of two remaining physical separation travel control switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20100901 |