CN111692248A - Stall braking device for transmission shaft of electric wheelchair - Google Patents
Stall braking device for transmission shaft of electric wheelchair Download PDFInfo
- Publication number
- CN111692248A CN111692248A CN202010571799.5A CN202010571799A CN111692248A CN 111692248 A CN111692248 A CN 111692248A CN 202010571799 A CN202010571799 A CN 202010571799A CN 111692248 A CN111692248 A CN 111692248A
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- CN
- China
- Prior art keywords
- movably connected
- shell
- movable block
- swing joint
- rotating shaft
- 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.)
- Withdrawn
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/28—Electric or magnetic using electrostrictive or magnetostrictive elements, e.g. piezoelectric elements
Abstract
The invention relates to the technical field of old-age equipment and discloses a stall braking device for a transmission shaft of an electric wheelchair, which comprises a rotating shaft, wherein the outer part of the rotating shaft is movably connected with a movable block, the outer part of the movable block is fixedly connected with a connecting plate, the inner part of the rotating shaft is movably connected with a shell, the inner part of the shell is movably connected with a spring, the inner part of the shell is movably connected with a current variant, the inner part of the shell is movably connected with an electric wire, the inner part of the rotating shaft is movably connected with an anti-collision pad, and the outer part; under the interaction of pivot, movable block, even board, shell, spring, current variant, electric wire, crashproof pad, can be so that the normal use of wheelchair is not influenced when the normal driving of wheelchair and pivot rotational speed are normal, just so can avoid influencing the normal use of wheelchair owing to the speed limit, furthest's braking structure is to the influence of pivot, more is fit for the use under the actual conditions like this.
Description
Technical Field
The invention relates to the technical field of old-age equipment, in particular to a stall braking device for a transmission shaft of an electric wheelchair.
Background
The physical function of the old also is constantly declining along with the increase of age, and this will make the old can need some endowment equipment to assist oneself daily life to avoid oneself to take place the accident in the life and cause some serious bodily injuries.
People's attention to old person's degree of importance is constantly increasing and has also promoted the development of endowment equipment, the variety of endowment equipment is also constantly increasing, the practicality of endowment equipment is also constantly laminating old person's use, and in numerous endowment equipment, the wheelchair should be a comparatively common one, wheelchair on the market generally divide into electronic and nonelectric, and electronic wheelchair is favored by some old person that the legs and feet are inconvenient because of the travelling comfort and the convenience of its preferred, but because electronic wheelchair still needs artificial control, this just makes when electronic wheelchair is in the downhill path easy emergence fast situation, if the operator can not control speed this moment, unexpected circumstances such as the wheelchair turns on one's side can take place extremely, this will make the operator can receive comparatively serious health injury.
Therefore, in response to these problems, a stall braking device for the transmission shaft of an electric wheelchair is needed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a stall braking device for a transmission shaft of an electric wheelchair, which has the advantage that the transmission shaft can be braked in time when stalled, and solves the problem that the electric wheelchair is easy to have a condition of high speed when in a downhill due to the fact that the electric wheelchair still needs manual control, and if the speed of the electric wheelchair is not controlled well, the accident conditions such as rollover of the wheelchair and the like are likely to occur, so that an operator can suffer serious physical injury.
(II) technical scheme
In order to achieve the purpose that the transmission shaft stalls and can be braked in time, the invention provides the following technical scheme: the utility model provides a stall arresting gear for electric wheelchair transmission shaft, which comprises a rotating shaft, the outside swing joint of pivot has the movable block, the outside fixedly connected with link board of movable block, the inside swing joint of pivot has the shell, the inside swing joint of shell has the spring, the inside swing joint of shell has the current variant, the inside swing joint of shell has the electric wire, the inside swing joint of pivot has the crash pad, the outside swing joint of pivot has the conductor, the outside connection of pivot has the retainer plate, the outside swing joint of retainer plate has the dog, the outside swing joint of retainer plate has the coil, the outside swing joint of retainer plate has fixed the knot, the outside swing joint of fixed knot has the protective housing, the outside swing joint of protective housing has wheel hub subassembly.
Preferably, the movable groove has been seted up to the inside of pivot, and movable block swing joint is in the inboard in movable groove, and the specification of movable block and the specification phase-match in movable groove, the inside fixedly connected with bull stick of movable block, bull stick swing joint are in the inside of pivot, and the quantity of movable block is no less than three.
Preferably, link board swing joint is in the inside of shell, and the outside swing joint of linking the board has the spring, and the inside swing joint of a shell has two corresponding electrically conductive poles in position, and the spring is kept away from the one end swing joint of linking the board and is led the outside of electrically conductive pole, and spring swing joint is in the inside of electrorheological body, links board and shell and all adopts high strength stereoplasm insulating material.
Preferably, the main materials of the electrorheological fluid are gypsum, lime, carbon powder and olive oil, and the electrorheological fluid is in a solid state under a current-carrying state with a specified current amount and in a liquid state under a non-current-carrying state.
Preferably, the shape of shell and the rotation route phase-match of movable block, the both ends of electric wire swing joint respectively in the inside of two adjacent shells, crash pad swing joint is in the inboard in activity groove.
Preferably, the quantity of dog is the same with the movable block, and the specification of dog and the specification phase-match of movable block, pivot swing joint are in the inside of protective housing, and coil inside has the electric current to pass through and exists the magnetic induction line, and the conductor is the vertical state with the magnetic induction line of coil, the specification and the coil phase-match of conductor.
Preferably, the electrorheological body is electrically connected with the conductive post, and the conductor is electrically connected with the electrorheological body.
(III) advantageous effects
Compared with the prior art, the invention provides a stall braking device for a transmission shaft of an electric wheelchair, which has the following beneficial effects:
1. the stall braking device for the transmission shaft of the electric wheelchair can ensure that the normal use of the wheelchair is not influenced when the wheelchair normally runs and the rotating speed of the rotating shaft is normal through the interaction among the rotating shaft, the movable block, the connecting plate, the shell, the spring, the current variant, the electric wire and the anti-collision pad, so that the influence on the normal use of the wheelchair due to speed limitation can be avoided, and the influence of a braking structure on the rotating shaft to the greatest extent is more suitable for use under the actual condition.
2. This a stall arresting gear for electronic wheelchair transmission shaft, through the conductor, the retainer plate, the dog, the coil, fixed knot, the protective housing, under the interact between the wheel hub subassembly, can be so that when the pivot is fast excessively, can carry out the speed limit braking to the pivot through braking structure, just so can avoid the wheelchair to make the emergence of the unexpected situation that the speed of traveling of wheelchair was too fast and caused under some circumstances such as downhill path, just so can the maximum assurance wheelchair the speed, and then guarantee operator's safety.
Drawings
FIG. 1 is a schematic view of a connection relationship between a rotating shaft, a protective shell and a hub assembly according to the present invention;
FIG. 2 is a schematic partial cross-sectional view of the inventive structure;
FIG. 3 is a schematic structural diagram illustrating a connection relationship between some of the structures shown in FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the structure at A in FIG. 3 according to the present invention.
In the figure: 1. a rotating shaft; 2. a movable block; 3. connecting plates; 4. a housing; 5. a spring; 6. an electrorheological fluid; 7. an electric wire; 8. an anti-collision pad; 9. a conductor; 10. a stationary ring; 11. a stopper; 12. a coil; 13. a fixing buckle; 14. a protective shell; 15. a hub assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a stall brake device for a transmission shaft of an electric wheelchair comprises a rotating shaft 1, wherein the outer part of the rotating shaft 1 is movably connected with a movable block 2, a movable groove is formed in the rotating shaft 1, the movable block 2 is movably connected to the inner side of the movable groove, the specification of the movable block 2 is matched with that of the movable groove, a rotating rod is fixedly connected to the inner part of the movable block 2, the rotating rod is movably connected to the inner part of the rotating shaft 1, and the number of the movable blocks 2 is not less than three.
The outer part of the movable block 2 is fixedly connected with a connecting plate 3, the inner part of the rotating shaft 1 is movably connected with a shell 4, the inner part of the shell 4 is movably connected with a spring 5, the inner part of the shell 4 is movably connected with an electrorheological body 6, the main materials of the electrorheological body 6 are gypsum, lime, carbon powder and olive oil, and the electrorheological body 6 is in a solid state under the electrified state of a specified current amount and in a liquid state under the non-electrified state; even 3 swing joint of board is in the inside of shell 4, and even the outside swing joint of board 3 has spring 5, and the inside swing joint of a shell 4 has two corresponding conductive posts in position, and spring 5 keeps away from even one end swing joint of board 3 and leads the outside of electrical pillar, and spring 5 swing joint is in the inside of electrorheological body 6, even board 3 and shell 4 all adopt high strength stereoplasm insulating material.
The inner part of the shell 4 is movably connected with an electric wire 7, the inner part of the rotating shaft 1 is movably connected with an anti-collision pad 8, the shape of the shell 4 is matched with the rotating path of the movable block 2, two ends of the electric wire 7 are respectively movably connected with the inner parts of two adjacent shells 4, and the anti-collision pad 8 is movably connected with the inner side of the movable groove; under the interaction among the rotating shaft 1, the movable block 2, the connecting plate 3, the shell 4, the spring 5, the current variant 6, the electric wire 7 and the anti-collision pad 8, the normal use of the wheelchair can not be influenced when the wheelchair normally runs and the rotating speed of the rotating shaft 1 is normal, so that the influence on the normal use of the wheelchair due to speed limitation can be avoided, the influence of a braking structure on the rotating shaft 1 to the maximum extent is avoided, and the wheelchair is more suitable for being used under the actual condition.
The outer part of the rotating shaft 1 is movably connected with a conductor 9, the outer part of the rotating shaft 1 is connected with a fixed ring 10, the outer part of the fixed ring 10 is movably connected with a stop block 11, the outer part of the fixed ring 10 is movably connected with a coil 12, the outer part of the fixed ring 10 is movably connected with a fixed buckle 13, the outer part of the fixed buckle 13 is movably connected with a protective shell 14, the number of the stop blocks 11 is the same as that of the movable blocks 2, the specification of the stop blocks 11 is matched with that of the movable blocks 2, the rotating shaft 1 is movably connected inside the protective shell 14, current passes through and magnetic induction lines exist inside the coil 12, the conductor 9 is vertical to the magnetic induction lines of the coil 12; the outside swing joint of protective housing 14 has wheel hub subassembly 15, the electrorheological body 6 is connected with electrically conductive post electricity, conductor 9 is connected with electrorheological body 6 electricity, through conductor 9, retainer plate 10, dog 11, coil 12, fixed knot 13, protective housing 14, under the interact between the wheel hub subassembly 15, can make when pivot 1 rotational speed is too fast, can carry out the speed limit braking to pivot 1 through braking structure, just so can avoid the emergence of the unexpected situation that the speed of going of wheelchair caused that makes the wheelchair too fast under some circumstances such as downhill path, just so can the maximum assurance wheelchair speed, and then guarantee operator's safety.
The working process and the principle are that when the device starts to be started, the movable block 2 is movably connected to the outer portion of the rotating shaft 1, the connecting plate 3 is fixedly connected to the outer portion of the movable block 2, the shell 4 is movably connected to the inner portion of the rotating shaft 1, the spring 5 is movably connected to the inner portion of the shell 4, the current transformation body 6 is movably connected to the inner portion of the shell 4, the electric wire 7 is movably connected to the inner portion of the shell 4, the anti-collision pad 8 is movably connected to the inner portion of the rotating shaft 1, the conductor 9 is movably connected to the outer portion of the rotating shaft 1, the fixed ring 10 is connected to the outer portion of the fixed ring 10, the stop block 11 is movably.
In addition, a movable groove is arranged in the rotating shaft 1, the movable block 2 is movably connected to the inner side of the movable groove, the specification of the movable block 2 is matched with that of the movable groove, a rotating rod is fixedly connected to the inner part of the movable block 2 and is movably connected to the inner part of the rotating shaft 1, the number of the movable blocks 2 is not less than three, the connecting plate 3 is movably connected to the inner part of the shell 4, the outer part of the connecting plate 3 is movably connected with a spring 5, the inner part of the shell 4 is movably connected with two conductive posts corresponding to each other in position, one end of the spring 5, far away from the connecting plate 3, is movably connected to the outer parts of the conductive posts, the spring 5 is movably connected to the inner part of the current variant 6, the connecting plate 3 and the shell 4 are both made of high-strength hard insulating materials, the main materials of the current variant 6 are gypsum, lime, carbon, the shape of the shell 4 is matched with the rotating path of the movable block 2, two ends of the electric wire 7 are respectively movably connected inside two adjacent shells 4, the anti-collision pad 8 is movably connected inside the movable groove, the number of the stop blocks 11 is the same as that of the movable block 2, the specification of the stop blocks 11 is matched with that of the movable block 2, the rotating shaft 1 is movably connected inside the protective shell 14, current passes through the coil 12 and has a magnetic induction line, the conductor 9 is vertical to the magnetic induction line of the coil 12, the specification of the conductor 9 is matched with that of the coil 12, the current variant 6 is electrically connected with the conductive column, and the conductor 9 is electrically connected with the current variant 6; when the rotating shaft 1 rotates normally, the rotating shaft 1 rotates to drive the movable block 2 and the conductor 9 to rotate, the conductor 9 rotates to cut the magnetic induction lines of the coil 12 to generate a certain amount of induced current, the induced current generated under the normal condition of the rotating shaft 1 does not reach the specified amount of current which can enable the current variant 6 to be converted into a solid state, and therefore when the rotating shaft 1 rotates, the movable block 2 rotates around the rotating rod under the action of the stop block 11, the movable block 2 rotates to drive the connecting plate 3 to move, the connecting plate 3 moves to drive the spring 5 to deform, and the stop block 11 cannot restrict the rotation of the rotating shaft 1 under the action of the movement of the movable block 2; when the rotating shaft 1 rotates at an excessively high speed, the conductor 9 rotates to generate an induction current amount which enables the current variant 6 to be converted into a solid state, so that the solid current variant 6 can restrict the movement of the connecting plate 3, and further the movement trend of the movable block 2 is limited, so that when the rotating shaft 1 rotates, the movable block 2 can be in contact with the stop block 11, the movable block 2 can stop moving under the action of the stop block 11, and the rotating shaft 1 stops rotating.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A stall braking device for the drive shaft of an electric wheelchair, comprising a rotating shaft (1), characterized in that: the outer part of the rotating shaft (1) is movably connected with a movable block (2), the outer part of the movable block (2) is fixedly connected with a connecting plate (3), the inner part of the rotating shaft (1) is movably connected with a shell (4), the inner part of the shell (4) is movably connected with a spring (5), the inner part of the shell (4) is movably connected with an electrorheological body (6), the inner part of the shell (4) is movably connected with an electric wire (7), the inner part of the rotating shaft (1) is movably connected with an anti-collision pad (8), the outer part of the rotating shaft (1) is movably connected with a conductor (9), the outer part of the rotating shaft (1) is connected with a fixed ring (10), the outer part of the fixed ring (10) is movably connected with a check block (11), the outer part of the fixed ring (10) is movably connected with a coil (12), the outer part, the outside of the protective shell (14) is movably connected with a hub assembly (15).
2. A stall braking device for the drive shaft of an electrically powered wheelchair as claimed in claim 1, wherein: the movable groove has been seted up to the inside of pivot (1), and movable block (2) swing joint is in the inboard in movable groove, the specification phase-match in specification and the movable groove of movable block (2), the inside fixedly connected with bull stick of movable block (2), bull stick swing joint is in the inside of pivot (1), and the quantity of movable block (2) is no less than three.
3. A stall braking device for the drive shaft of an electrically powered wheelchair as claimed in claim 1, wherein: even board (3) swing joint is in the inside of shell (4), and the outside swing joint of even board (3) has spring (5), and the inside swing joint of a shell (4) has two corresponding conductive posts in position, and the one end swing joint that even board (3) were kept away from in spring (5) is in the outside of leading the post, and spring (5) swing joint is in the inside of current variant (6), even board (3) and shell (4) all adopt high strength stereoplasm insulating material.
4. A stall braking device for the drive shaft of an electrically powered wheelchair as claimed in claim 1, wherein: the main materials of the electrorheological body (6) are gypsum, lime, carbon powder and olive oil, and the electrorheological body (6) is in a solid state under a current-carrying state with a specified current amount and in a liquid state under a non-current-carrying state.
5. A stall braking device for the drive shaft of an electrically powered wheelchair as claimed in claim 1, wherein: the shape of shell (4) and the rotation route phase-match of movable block (2), the both ends difference swing joint of electric wire (7) is in the inside of two adjacent shells (4), and crash pad (8) swing joint is in the inboard in activity groove.
6. A stall braking device for the drive shaft of an electrically powered wheelchair as claimed in claim 1, wherein: the quantity of dog (11) is the same with movable block (2), and the specification of dog (11) and the specification phase-match of movable block (2), pivot (1) swing joint have the inside of protective housing (14), and coil (12) are inside to have the electric current to pass through and to have the magnetic induction line, and conductor (9) and coil (12)'s magnetic induction line are vertical state, and the specification and coil (12) phase-match of conductor (9).
7. A stall braking device for the drive shaft of an electrically powered wheelchair as claimed in claim 1, wherein: the electroform body (6) is electrically connected with the conductive columns, and the conductor (9) is electrically connected with the electroform body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010571799.5A CN111692248A (en) | 2020-06-22 | 2020-06-22 | Stall braking device for transmission shaft of electric wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010571799.5A CN111692248A (en) | 2020-06-22 | 2020-06-22 | Stall braking device for transmission shaft of electric wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111692248A true CN111692248A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010571799.5A Withdrawn CN111692248A (en) | 2020-06-22 | 2020-06-22 | Stall braking device for transmission shaft of electric wheelchair |
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| CN (1) | CN111692248A (en) |
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| CN112276175A (en) * | 2020-10-19 | 2021-01-29 | 浙江火萌互娱信息技术有限公司 | Anti-stall device used during hole milling of hybrid heat exchanger |
| CN112371224A (en) * | 2020-11-03 | 2021-02-19 | 杭州怪悉科技有限公司 | Fully grinding and screening device for intelligent manufacturing of secondary battery materials |
| CN112453981A (en) * | 2020-11-04 | 2021-03-09 | 杭州桂飞科技有限公司 | Intelligent protector to pivot stall during industrial robot cutting |
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| CN112173553A (en) * | 2020-10-16 | 2021-01-05 | 董江海 | Automatic change band conveyer speed adjusting mechanism for production line |
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Application publication date: 20200922 |