CN2444577Y - Push-pull two-used miniature brake - Google Patents
Push-pull two-used miniature brake Download PDFInfo
- Publication number
- CN2444577Y CN2444577Y CN 00254883 CN00254883U CN2444577Y CN 2444577 Y CN2444577 Y CN 2444577Y CN 00254883 CN00254883 CN 00254883 CN 00254883 U CN00254883 U CN 00254883U CN 2444577 Y CN2444577 Y CN 2444577Y
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- CN
- China
- Prior art keywords
- drive plate
- brake
- plate
- action
- swing arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to dual-purpose miniature brake for pushing and pulling. One driving plate, two linking sheets, the upper part of one oscillating rod, and one elastic reset element are arranged inside the inner part of one main body. The driving plate is provided with a V-shaped circular arc groove, and is connected with an operating rod. The two linking sheets are coaxially pivoted at the opposite positions of both side surfaces of the oscillating rod. The free ends of the two linking sheets are correspondingly, respectively and convexly provided with a cylinder, and the two cylinders are simultaneously arranged in the circular arc groove of the driving plate. Thus, the repeated use can be achieved, and the utility model can not be released and damaged. The volume of the utility model can be further reduced, and the safety can be further increased.
Description
This utility model relates to a kind of structure of wheelchair, particularly relates to a kind of processing ease, the fragile and unsafer dual-purpose mini brake of push-and-pull.
As shown in Figure 1, the brake gear of general wheelchair is to install a substrate 1 in the side of chair frame, this substrate 1 offers a block pin-and-hole 101, and place, the proximal edges back side of this substrate 1 convexes with one first fastener 102, its positive place then is articulated with one first articular lamella 2, this first articular lamella 2 by slightly be equilateral triangle and the size identical before, back plate 201,202 constitute, before being somebody's turn to do, back plate 201,202 keep certain intervals and relative, the one angle is articulated section 203 and the bottom that is fixed in an action bars 3, then be installed with first holding section 204 and second holding section 205 that is the pin shape respectively between two jiaos of relative spacings in addition, and this back plate 202 convexes with a block pin 206 backward, this block pin 206 is placed in the block pin-and-hole 101 of substrate 1, for the restriction oscillating stroke, another side of this substrate 1 fork 4 that is coupling again, these fork 4 belows are provided with a detent 401, and this place, back side, fork 4 stage casing convexes with one second fastener 402, its positive place then is pivoted with a second joint plate 5, this second joint plate 5 slightly is equilateral triangle, the one angle is articulated section 501, and relatively on the side of this articulated section 501, then offer and first of first articular lamella 2, two holding sections 204,205 is symmetrical, and slightly being first of U font notch is stuck portion 502 and second and is stuck portion 503, in addition, one helical spring 6 is erected on second fastener 402 of first fastener 102 of substrate 1 and fork 4, so that this first articular lamella 2 is kept fastening state under normal conditions with second joint plate 5.
As shown in Figure 2, when action bars 3 pushes away forward, this first articular lamella 2 can rotate towards counterclockwise thereupon, be stuck portion 503 and make second holding section 205 be sticked in second of second joint plate 5, and the application of force makes second joint plate 5 towards rotating clockwise whereby, first holding section 204 that makes first articular lamella 2 and first of second joint plate 5 be stuck portion 502 separate away from, and this is first years old, two articular lamellas 2,5 articulated section 203,501 distance also thereby increase, cause fork 4 close toward the wheel direction, so, this is first years old, two articular lamellas 2,5 engaging place will be crossed its dead-centre position (just first, two articular lamellas 2,5 articulated section 203,501 straight lines that are formed by connecting), and the top that arrives this position, dead point is located, at this moment, the outer peripheral face of the detent 401 butt wheels of this fork 4, and reach the purpose of brake, afterwards, remove braking state, the detent 401 that makes fork 4 is away from wheel, then action bars 3 is retracted, and by the elastic restoring force of helical spring 6, make first, two articular lamellas 2,5 get back to the fastening state under the normality, on the contrary, as shown in Figure 3, when action bars 3 during toward post-tensioning, this first articular lamella 2 can be thereupon towards rotating clockwise, be stuck portion 502 and make first holding section 204 be sticked in first of second joint plate 5, and the application of force makes second joint plate 5 rotate towards counterclockwise whereby, second holding section 205 that makes first articular lamella 2 and second of second joint plate 5 be stuck portion 503 separate away from, and this is first years old, two articular lamellas 2,5 articulated section 203,501 distance also thereby increase, cause fork 4 close toward the wheel direction, so, this is first years old, two articular lamellas 2,5 engaging place will be crossed its dead-centre position, and the below that arrives this position, dead point is located, at this moment, the outer peripheral face of the detent 401 butt wheels of this fork 4, and reach the purpose of brake, afterwards, remove braking state, the detent 401 that makes fork 4 is away from wheel, then action bars 3 is pushed back, and, make first by the elastic restoring force of helical spring 6, two articular lamellas 2,5 get back to the fastening state under the normality.
Really, push away or purpose that post-tensioning all can brake, and can be applicable to different disableds' demand no matter utilize above-mentioned device can reach preceding, still, its structure and use and still have following disappearance part:
One, by as can be known aforementioned, this brake be to cooperate with second joint plate 5 as flowing mode by first articular lamella 2, and make first, two holding sections 204,205 and first, two are stuck portion 502,503 engage with each other or separate, with the detent 401 that causes fork 4 away from or the outer peripheral face of butt wheel, therefore, after first holding section 204 and first is stuck portion 502 or second holding section 205 and second and is stuck portion 503 and separates, and will engage again the time, its may be when making or installing error, and the side force that the application of force pushes away when action bars 3 and before the non-rectilinear or post-tensioning produced, cause this second joint plate 5 can't align the slit of first articular lamella (just, back plate 201, slit between 202), and rub in addition snap into front panel 201 or the back plate 202 the edge, meaning is first, two are stuck portion 502,503 can't fully directly be fastened on first, two holding sections 204,205, make this first, two articular lamellas 2,5 are worn easily and damage.
Two, can find out by Fig. 2, Fig. 3, be stuck when first holding section 204 and first is stuck portion 502 or second holding section 205 and second that portion 503 is separating, in the engaging process, because of the size of first and second articular lamella 2,5 remains unchanged, so its upper and lower need have certain activity space ccontaining for first and second articular lamella 2,5, and make whole brake gear relatively increase.
Three, secondly, as shown in Figure 4, when pushing away before the user or during post-tensioning action bars 3, the first affixed articular lamella 2 of these action bars 3 bottoms drives second joint plate 5, second joint plate 5 drives the fork 4 that is articulated, make the outer peripheral face of its detent 401 butt wheels, and because of this action bars 3 be affixed with first articular lamella 2, first articular lamella 2 is non-on same plane with fork 4 again, so, be not to carry out in the transmission of power on same plane, therefore caused the generation of a torsion, this torsion will cause fork 4 deflections, and influence braking quality, get off for a long time even fork 4 is got loose on substrate 1.
Four moreover, as Fig. 2, shown in Figure 3, when first holding section 204 and first is stuck portion 502 or second holding section 205 and second and is stuck portion 503 and separates, form a shears opening shape between its first articular lamella 2 and the second joint plate 5, so when user or other people were careless, its health or medicated clothing may fall within this opening part and be crushed or damage.
No matter the purpose of this utility model is to provide and pushes away before a kind of action bars or post-tensioning all can brake, and can repetitiousness use and can not come off, damage, and can further dwindle the dual-purpose mini brake of push-and-pull of its volume and increase safety.
The dual-purpose mini brake of this utility model push-and-pull is the chair frame side that is installed in wheelchair, it is a stopper slot that offers curved shape at a body, this body interior is equiped with a drive plate, the one swing arm first half, one first double-action plate, one second double-action plate and an elasticity involution element, it is fan-shaped that this drive plate slightly is, its place, nearly fan top offers slightly and is＜arc groove of shape, closely fanning the bottom then is hubbed on the body, and be connected with an action bars, one side of this drive plate convexes with a gag lever post, this gag lever post is placed in the stopper slot of body, this swing arm is installed in the adjacent side of this drive plate in addition, and be positioned at same plane, its top is hubbed on the body, the bottom is then protruding to be exposed to that this is external and be provided with a detent, to be used for the outer peripheral face of butt wheel, and coaxial this first double-action plate and second double-action plate of being pivoted with of the stage casing two side faces opposite position of this swing arm, this is first years old, the other end opposite face of two double-action plates respectively convexes with a cylinder, this two cylinder is placed in the arc groove of drive plate simultaneously, in addition, this elasticity involution element is to be installed in the swing arm side, so that should brake under normal conditions, its detent is away from the outer peripheral face of wheel.
By above-mentioned device, no matter push away or post-tensioning before making action bars, its drive plate all can drive first and second double-action plate, and makes swing arm advance, and makes the outer peripheral face of detent butt wheel, to reach the purpose of brake.
Below by most preferred embodiment and accompanying drawing the dual-purpose mini brake of push-and-pull of the present utility model is elaborated, in the accompanying drawing:
Fig. 1 is the exploded perspective view of general Brake of wheel-chair device;
Fig. 2 is that sketch map is made in the preceding promotion of the action bars of general Brake of wheel-chair device;
Fig. 3 is the action bars post-tensioning action sketch map of general Brake of wheel-chair device;
Fig. 4 is the combined side figure of general Brake of wheel-chair device;
Fig. 5 is the exploded perspective view of this utility model one preferred embodiment;
Fig. 6 is the assembling view of the above-mentioned preferred embodiment of this utility model;
Fig. 7 pushes away sketch map before the action bars of the above-mentioned preferred embodiment of this utility model;
Fig. 8 is the action bars post-tensioning sketch map of the above-mentioned preferred embodiment of this utility model.
As Fig. 5, shown in Figure 6, the dual-purpose mini brake of the push-and-pull of this utility model embodiment is the chair frame side that is installed in wheelchair, and it includes a body 10, a drive plate 20, a screw 30, an action bars 40, a swing arm 50, one first double-action plate 60, one second double-action plate 70 and an elasticity involution element 80.
This body 10 is made of a base 11 and an enclosing cover 12, this base 11 offers a stopper slot 111 of curved shape, the adjacent side of this stopper slot 111 and nearly base 11 ora terminalis places convex with a circular shaft 112, the relative dual side-edge of this base 11 respectively is provided with an inclined-plane 113 again, these enclosing cover 12 covers cover whole base 11 in addition, and with two-screw 121 lockings, and make the body 10 inner accommodation spaces that form to install this brake major part.
This drive plate 20 slightly is fan-shaped and is installed in this body 10 inside, its place, nearly fan top offers slightly and is＜arc groove 21 of shape, this drive plate 20 is being fanned the end and is then being convexed with a hollow circuit cylinder 22, the sheathed circular shaft 112 of going into body 10 bases 11 of this hollow circuit cylinder 22, and borrow this screw 30 to make it to link together, and reach the purpose of pivot joint, and a part of protruding of this hollow circuit cylinder 22 is exposed to outside the body 10, these body 10 outer position and this action bars 40 are connected, this action bars 40 is generally perpendicular to ground again, in addition, the back side centre of this drive plate 20 convexes with a gag lever post 23, and this gag lever post 23 is placed in the stopper slot 111 of body 10 bases 11, and when 23 of this gag lever posts during in stopper slot 111 tops or bottom, wherein 24 of oblique sides of this drive plate 20 just can be resisted against on the inclined-plane 113 on the other side, to increase its spacing function.
This swing arm 50 is installed in the adjacent side of this drive plate 20, and be positioned at same plane, its top is hubbed on the base 11 of body 10, the bottom is then protruding to be exposed to that this is external and be provided with a detent 51, to be used for the outer peripheral face of butt wheel 90, and the coaxial articulated section 52 of the stage casing two side faces of this swing arm 50 respectively is provided with this first double-action plate 60 and second double-action plate 70, this first and second double- action plate 60,70 is positioned at body 10 inside, its other end opposite face respectively convexes with a cylinder 61,71, and this two cylinder 61,71 is placed in the arc groove 21 of drive plate 20 simultaneously.
One end of this elasticity involution element 80 is installed near on swing arm 50 vertical body 10 bases 11, and the other end then is fastened on swing arm 50 sides.
As shown in Figure 6, this utility model under normal conditions, this drive plate 20 is position centre in body 10 inside, the gag lever post 23 at its back side is stopper slot 111 central authorities at body 10 bases 11 also, and 61 arc groove 21 tops of the cylinder of first double-action plate 60 at drive plate 20, the cylinder 71 of second double-action plate 70 then the position in arc groove 21 bottoms of drive plate 20, continue it, as shown in Figure 7, when action bars 40 during toward post-tensioning, this action bars 40 drives drive plate 20 and rotates towards counterclockwise, and arc groove 21 tops of the cylinder 61 of first double-action plate 60 because of being positioned at drive plate 20, so can be driven by the moving plate 20 in district, and towards rotating clockwise, causing this swing arm 50 can be that axially the back is released with the top, make the outer peripheral face of detent 51 butt wheels 90 of this swing arm 50, and this second double-action plate 70 can be driven by swing arm 50, and in the arc groove 21 of drive plate 20, slide, at this moment, the cylinder 61 of this first double-action plate 60 can be crossed its dead-centre position (just the articulated section 52 of swing arm 50 and the hollow circuit cylinder 22 that drives power 20 linked straight line) together with arc groove 21 tops of drive plate 20, gag lever post 23 up to these drive plate 20 back sides abuts to stopper slot 111 bottoms of body 10 bases 11, locate slack below just omiting in this position, dead point, afterwards, remove braking state, make detent 51 away from wheel 90, then action bars 40 is pushed back, and by the elastic restoring force of this elasticity involution element 80, whole brake gear is returned under the normality state, on the contrary, as shown in Figure 8, when action bars 40 pushes away forward, this action bars 40 drives drive plate 20 towards rotating clockwise, and arc groove 21 bottoms of the cylinder 71 of this second double-action plate 70 because of being positioned at drive plate 20, so can be driven plate 20 drives, and rotate towards counterclockwise, causing this swing arm 50 can be that axially the back is released with the top, make the outer peripheral face of detent 51 butt wheels 90 of this swing arm 50, and this first double-action plate 60 can be driven by swing arm 50, and in the arc groove 21 of drive plate 20, slide, at this moment, the cylinder 71 of this second double-action plate 70 can be crossed its dead-centre position together with arc groove 21 tops of drive plate 20, gag lever post 23 up to these drive plate 20 back sides abuts to stopper slot 111 tops of body 10 bases 11, locate slack above just omiting in this position, dead point, afterwards, remove braking state, make detent 51 away from wheel 90, then action bars 40 is retracted, and, whole brake gear is returned under the normality state by the elastic restoring force of this elasticity involution element 80.
At last, the advantage with the utility model " the dual-purpose mini brake of push-and-pull " is summarized as follows:
One, the utility model is with the cylinder 61 on first and second double- action plate 60,70,71 together In time, be placed in the arc groove 21 of drive plate 20, no matter and push away or post-tensioning before the action bars 40, these are two years old Cylinder 61,71 all slides in arc groove 21 and can not come off, and stops so improved general wheelchair The car device is because of after separating, again the engaging incomplete engaging that may cause or the phenomenon of wearing and tearing.
Two, by circle 7, Fig. 8 can obviously find out, when pushing away before the action bars 40 or during post-tensioning, this first, Cylinder 61,71 on two double- action plates 60,70 all is subjected to arc groove 21 restrictions of drive plate 20, And can only in arc groove 21, slide, so, the angle between first and second double- action plate 60,70 Can reduce thereupon, so that its upper and lower activity space also reduces, therefore can relatively dwindle this brake Device.
Three, secondly, because this action bars 40 is affixed with drive plate 20, and drive plate 20 and swing Bar 50 is at same plane, so when the application of force was on action bars 40, the transmission of its power was same On one plane, and do not have the generation of torsion, therefore, this swing arm 50 can not produce deflection, and Best braking ability can be arranged.
Four moreover, main action of the present utility model is in the cooperation of first and second double- action plate 60,70 and drive plate 20, so can not produce as the shears opening shape of Brake of wheel-chair device, and everything is all body 10 inner generations, and covered by this shell 12 to cover, therefore health or medicated clothing can not take place once the situation that will be crushed or damage because of carelessness, and improved its safety widely.
Claims (3)
1. your brake of the dual-purpose fan of push-and-pull, this brake is the chair frame side that is installed in wheelchair, consists predominantly of the drive plate and that a body, is installed in this body interior and is installed in the adjacent side of this drive plate and is positioned at conplane swing arm, it is characterized in that:
This body offers a stopper slot of curved shape, and its inside is to be used for the major part of ccontaining this brake;
It is fan-shaped that this drive plate slightly is, and it is closely fanned top place and offers slightly and be＜arc groove of shape, closely fans the bottom and then is hubbed on the body, and be connected with an action bars, and a side of this drive plate convexes with a gag lever post again, and this gag lever post is placed in the stopper slot of body;
The top of this swing arm is hubbed on the body, the bottom is then protruding to be exposed to that this is external and be provided with a detent, to be used for the outer peripheral face of butt wheel, and coaxial one first double-action plate and one second double-action plate of being pivoted with of the stage casing two side faces opposite position of this swing arm, this first and second double-action plate is positioned at body interior, its other end opposite face respectively convexes with a cylinder, this two cylinder is placed in the arc groove of drive plate simultaneously, this swing arm side is equiped with an elasticity involution element again, this brakes under normal conditions, and its detent is away from the outer peripheral face of wheel.
2. the dual-purpose mini brake of push-and-pull as claimed in claim 1 is characterized in that: this body can be a base and an enclosing cover constitutes.
3. the dual-purpose mini brake of push-and-pull as claimed in claim 2 is characterized in that: this base respectively is provided with an inclined-plane with respect to two oblique sides of drive plate, for two oblique sides of this drive plate against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254883 CN2444577Y (en) | 2000-09-30 | 2000-09-30 | Push-pull two-used miniature brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254883 CN2444577Y (en) | 2000-09-30 | 2000-09-30 | Push-pull two-used miniature brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2444577Y true CN2444577Y (en) | 2001-08-29 |
Family
ID=33612033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00254883 Expired - Fee Related CN2444577Y (en) | 2000-09-30 | 2000-09-30 | Push-pull two-used miniature brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2444577Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476956A (en) * | 2022-04-18 | 2022-05-13 | 启东市德立神起重运输机械有限公司 | Hoist and mount hoist safety arrangement |
-
2000
- 2000-09-30 CN CN 00254883 patent/CN2444577Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476956A (en) * | 2022-04-18 | 2022-05-13 | 启东市德立神起重运输机械有限公司 | Hoist and mount hoist safety arrangement |
| CN114476956B (en) * | 2022-04-18 | 2022-06-21 | 启东市德立神起重运输机械有限公司 | Hoist and mount hoist safety arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |