CN107343831B - Auxiliary device suitable for common wheelchair electrodynamic - Google Patents
Auxiliary device suitable for common wheelchair electrodynamic Download PDFInfo
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- CN107343831B CN107343831B CN201710600414.1A CN201710600414A CN107343831B CN 107343831 B CN107343831 B CN 107343831B CN 201710600414 A CN201710600414 A CN 201710600414A CN 107343831 B CN107343831 B CN 107343831B
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- ratchet wheel
- wheelchair
- handle
- block
- wheelbarrow
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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
- A61G5/047—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven by a modular detachable drive system
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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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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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Abstract
The invention discloses an auxiliary device suitable for the electric operation of a common wheelchair, which comprises a wheelchair, a fixing mechanism, a wheelbarrow mechanism and a connecting mechanism, wherein the fixing mechanism is connected with a wheelchair frame, and the connecting mechanism is used for connecting the fixing mechanism and the wheelbarrow mechanism. The connecting mechanism is connected with the fixing mechanism through the positioning hole and the square head set screw, is connected with the wheelbarrow mechanism through the dovetail groove structure, and can adjust the width and the height, and the power and the steering generated by the wheelbarrow mechanism are transmitted through the connecting mechanism to drive the wheelchair to move.
Description
Technical Field
The invention relates to the field of electric combined wheelchairs, in particular to an auxiliary device suitable for electric common wheelchairs.
Background
Currently, wheelchairs in the market are various in variety and function and mainly comprise common wheelchairs, high-backrest reclining wheelchairs, electric wheelchairs, toilet wheelchairs, standing assisting wheelchairs and the like. The electric wheelchair is mainly used by high-position paraplegia, hemiplegia and other persons with single-hand control capability, and has become a riding-assisting tool for the disabled and the weak. Under the condition that no other person pushes the wheelchair outdoors or in large-scale places, the electric wheelchair can expand the range of activities of the crowd and save the physical strength. However, the existing electric wheelchair is expensive, which is generally more than 5 times of the price of the common wheelchair, and the electric wheelchair has the disadvantages of complex structure, large weight and more troublesome transportation and installation. In fact, the electric wheelchair may work indoors most of the time, without an electric function, and resource waste is easily caused. Therefore, the wheelchair industry has an urgent need for an auxiliary device with a simple structure, which is suitable for the electric operation of a common wheelchair.
Disclosure of Invention
In order to overcome the defects and the shortcomings in the prior art, the invention provides an electric auxiliary device suitable for a common wheelchair.
The invention adopts the following technical scheme:
the auxiliary device suitable for the electric of the common wheelchair comprises a wheelchair, a fixing mechanism, a wheelbarrow mechanism and a connecting mechanism, wherein the fixing mechanism is connected with a wheelchair frame, and the connecting mechanism is used for connecting the fixing mechanism and the wheelbarrow mechanism.
The fixing mechanism comprises a ratchet wheel, a wedge block, a mounting handle, a reversing handle, a common flat key, a ratchet shaft, a left shell and a right shell, wherein the ratchet wheel is arranged in an inner cavity of the left shell, one end of the ratchet wheel is fixed through a shaft shoulder, the other end of the ratchet shaft is fixed on the left shell through an end cover, the ratchet shaft is locked on the end cover to realize axial positioning, the rotation of the ratchet shaft is transmitted to the ratchet wheel through the common flat key, the mounting handle is arranged on the left shell, a screw is used for locking after the mounting handle is sleeved with a head set screw, the mounting handle rotates to drive the head set screw to rotate, thereby the locking connecting mechanism is locked, one end of the head set screw is connected with the wedge block through threads, the other end of the head set screw is sleeved with the reversing handle, the spring is required to be arranged in a rectangular groove between the wedge block and the left shell, and the reversing handle controls the position of the wedge block to further control unidirectional or bidirectional rotation of the ratchet wheel.
The connecting mechanism comprises a connecting rod, clamping blocks, a dovetail block and a dovetail groove, wherein the dovetail block is provided with a round hole, the connecting rod is a U-shaped rod, a middle cross rod of the U-shaped rod penetrates through the round hole of the dovetail block, the clamping blocks are two, the two clamping blocks are attached together, one end of the connecting rod is connected with the dovetail groove through a bolt and nut assembly, the other end of the connecting rod is fixed with the two clamping blocks through a bolt and nut assembly, two vertical rods of the U-shaped rod are fixed with a ratchet shaft of the fixing mechanism, a supporting rod of the wheelbarrow mechanism penetrates through a hollow position between the two clamping blocks, and the dovetail block and the dovetail groove are mutually matched during use, so that the connecting mechanism and the wheelbarrow mechanism are assembled and disassembled.
The clamping blocks are U-shaped blocks, and a hollow structure is arranged between the two clamping blocks.
The invention has the beneficial effects that:
the auxiliary device is suitable for the electric device of the common wheelchair, and the common wheelchair and the wheelbarrow mechanism are connected through the connecting mechanism and the fixing mechanism, so that the wheelchair is driven by power generated by the wheelbarrow mechanism, steering is controlled through the handle of the wheelbarrow mechanism, and the electric device of the wheelchair is realized.
The wheelchair is simple in structure and convenient to install and use, reduces the motorized cost of the wheelchair, and provides convenience for people with inconvenient travel.
The width of the connecting mechanism can be adjusted through the connecting rod and the screw so as to adapt to different wheelchairs.
Drawings
FIG. 1 is a schematic installation view of the present invention;
FIG. 2 (a) is a right side view of the securing mechanism;
FIG. 2 (b) isbase:Sub>A cross-sectional view at A-A of FIG. 2 (base:Sub>A);
FIG. 3 (a) is a front view of the securing mechanism;
FIG. 3 (B) is a cross-sectional view at B-B of FIG. 3 (a);
FIG. 4 is a schematic view of the structure of the connecting mechanism of the present invention;
FIG. 5 is a schematic view of a partial enlarged structure at I in FIG. 1;
fig. 6 is a schematic view of a partial enlarged structure at II in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Examples
The utility model provides an auxiliary device suitable for ordinary wheelchair electrodynamic, as shown in fig. 1, includes wheelchair 4, wheel barrow mechanism 3 and coupling mechanism 2, fixed establishment 1 is fixed in the frame of wheelchair 4, namely on two frame vertical poles 401 of wheelchair foremost, coupling mechanism 2 is used for connecting fixed establishment 1 and wheel barrow mechanism 3.
The structure of the fixing mechanism 1 is as shown in fig. 2 (a), 2 (b), 3 (a) and 3 (b), a ratchet 105 is arranged in an inner cavity of a left housing 102, one end of the ratchet 105 is fixed through a shaft shoulder, the other end of the ratchet is fixed through an end cover 106, the end cover 106 is locked on the left housing 102 through a screw, a ratchet shaft 103 is locked on the end cover 106 through the screw to realize axial positioning, and rotation of the ratchet shaft 103 is transmitted to the ratchet 105 through a common flat key 107. After the upper head set screw 108 is sleeved on the mounting handle 104, the mounting handle 104 is locked by using the screw, and the mounting handle 104 rotates to drive the upper head set screw 108 to rotate, so that the connecting rod 201 of the connecting mechanism is locked. One end of the square head long screw 110 is connected with the wedge block 112 through threads, the other end is sleeved with the reversing handle 109 and then locked by the screw, the spring 111 is required to be arranged in a rectangular groove between the wedge block 112 and the left shell 102 before the wedge block 112 is installed, and the reversing handle 109 controls the position of the wedge block and further controls the unidirectional or bidirectional rotation of the ratchet wheel.
The connecting mechanism 2 is shown in fig. 4, the connecting mechanism 2 comprises a connecting rod 201, a clamping block 203, a dovetail block 202 and a dovetail groove 204, the connecting rod 201 is installed in a round hole of the dovetail block 202, the connecting rod is fixed through a square head set screw 108 after being adjusted to a proper position in width, the two clamping blocks 203 are attached together, the left clamping block and the right clamping block are fixed on a supporting rod of the wheelbarrow mechanism 3, one end of the connecting mechanism is fixed through a bolt and nut assembly, and the other end of the connecting mechanism can be fixed on the dovetail groove 204 through a bolt and nut assembly, so that the connecting mechanism 2 and the wheelbarrow mechanism 3 can be assembled and disassembled.
The connecting rod 201 is a U-shaped rod, the middle cross rod passes through the round hole of the dovetail block 202, and after the front-back distance between the two frame vertical rods 401 and the through hole of the ratchet shaft of the fixing mechanism 1 is properly adjusted, the connecting rod 201 is fixed in the through hole of the ratchet shaft 103 by screwing the mounting handle 104. After the connecting rod 201 is fixed, the reversing handle 109 is located at the position shown in fig. 2 (a), at this time, the wedge block 112 is matched with the surface of the ratchet 105 under the action of the spring 111, the ratchet 105 is limited by the wedge block 112 and can only rotate unidirectionally and realize self-locking, and pushing the handle of the wheelbarrow mechanism can enable the connecting rod 201 to rotate under the action of the ratchet 105, so that the angle of the wheelchair is adjusted, and the front wheel of the wheelchair is suspended at a certain distance from the ground. When the connecting mechanism 2 is dismounted, the handle is required to be lifted upwards to rotate 90 degrees, the wedge block 112 is placed on the boss of the left shell 102, the wedge block moves upwards along with the handle and is separated from the surface of the ratchet wheel 105, the ratchet wheel 105 can rotate bidirectionally, the front wheel of the wheelchair is restored to be in contact with the ground under the action of gravity, and after the handle 104 is rotatably mounted and the set screw is loosened, the connecting rod 201 of the connecting mechanism 2 can be dismounted from the through hole of the ratchet wheel shaft 103.
The connection of the coupling mechanism 2 to the wheelbarrow mechanism 3 is shown in figure 6. Two clamping blocks 203 are fixed on a supporting rod 301 of the wheelbarrow mechanism, one end of each clamping block is locked by using a bolt and nut assembly, the other end of each clamping block is connected with a dovetail groove 204 by using a bolt and nut assembly and locked, and the dovetail block assembly 202 is connected with the dovetail groove 204 in a matched mode, so that the connection mechanism 2 and the wheelbarrow mechanism 3 are connected.
As shown in fig. 5 and 6, when the auxiliary device for electric driving of a common wheelchair according to the present invention is used, the present invention is completed by fixing the dovetail groove 204 to the strut 301 of the wheelbarrow mechanism 3 through the clamp block 203, the bolt and nut assembly, fixing the fixing mechanism 1 to the vertical rod 401 of the wheelchair frame through the right housing 101, the left housing 102 and the fastening screw, finally mounting the dovetail block 202 to the dovetail groove 204, mounting the connecting rod 201 to the through hole of the ratchet shaft 103, and fastening the connecting rod 201 by screwing the square head fastening screw 108 using the mounting handle 104. After the installation is completed, the wheelchair 4 can realize linear and curved motion under the power provided by the wheelbarrow mechanism 3, thereby providing convenience for the disabled to travel and reducing the cost of realizing electric wheelchair. After the wheelchair is used, the wheelchair 4, the connecting mechanism 2 and the wheelbarrow mechanism 3 can be separated by only detaching the connecting rod 201 from the fixing mechanism 1 and detaching the dovetail block 202 from the dovetail groove 204, so that the wheelchair can be stored conveniently when not used, and the function of the wheelchair 4 can be recovered.
The auxiliary device is additionally arranged on the basis of a common wheelchair, is convenient and quick to install and detach, has a simple structure and wide connection stability and applicability, and can enable the wheelbarrow mechanism to be connected with the wheelchair to drive the wheelchair to move linearly and curvilinearly, thereby providing convenience for people with inconvenient travel and reducing the cost of realizing electric driving of the wheelchair.
The embodiments described above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the embodiments described above, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the present invention should be made in the equivalent manner, and are included in the scope of the present invention.
Claims (2)
1. The auxiliary device suitable for the electric of the common wheelchair comprises a wheelchair, and is characterized by further comprising a fixing mechanism, a wheelbarrow mechanism and a connecting mechanism, wherein the fixing mechanism is connected with a wheelchair frame, and the connecting mechanism is used for connecting the fixing mechanism and the wheelbarrow mechanism;
the fixing mechanism comprises a ratchet wheel, a wedge block, a mounting handle, a reversing handle, a common flat key, a ratchet wheel shaft, a left shell and a right shell, wherein the ratchet wheel is arranged in an inner cavity of the left shell, one end of the ratchet wheel is fixed through a shaft shoulder, the other end of the ratchet wheel is fixed on the left shell through an end cover, the ratchet wheel shaft is locked on the end cover to realize axial positioning, the rotation of the ratchet wheel shaft is transmitted to the ratchet wheel through the common flat key, the mounting handle is arranged on the left shell, the mounting handle is sleeved with a top fastening screw and then is locked by using a screw, the mounting handle rotates to drive the top fastening screw to rotate, thereby locking the connecting mechanism, one end of the top long screw is connected with the wedge block through threads, the other end of the top long screw is sleeved with the reversing handle and then is locked by using the screw, the spring is required to be arranged in a rectangular groove between the wedge block and the left shell before the wedge block is mounted, and the reversing handle controls the position of the wedge block to further control unidirectional or bidirectional rotation of the ratchet wheel;
the connecting mechanism comprises a connecting rod, clamping blocks, a dovetail block and a dovetail groove, wherein the dovetail block is provided with a round hole, the connecting rod is a U-shaped rod, a middle cross rod of the U-shaped rod penetrates through the round hole of the dovetail block, the two clamping blocks are attached together, one end of the connecting rod is connected with the dovetail groove through a bolt and nut assembly, the other end of the connecting rod is fixed with the two clamping blocks through a bolt and nut assembly, two vertical rods of the U-shaped rod are fixed with a ratchet shaft of the fixing mechanism, a supporting rod of the wheelbarrow mechanism penetrates through a hollow position between the two clamping blocks, and the dovetail block and the dovetail groove are mutually matched when the connecting mechanism is used, so that the connecting mechanism and the wheelbarrow mechanism are assembled and disassembled;
the connecting rod is a U-shaped rod, the middle cross rod penetrates through the round hole of the dovetail block, and after the front and back distances of the two frame vertical rods and the through hole of the ratchet shaft of the fixing mechanism are properly adjusted, the connecting rod is fixed in the through hole of the ratchet shaft by screwing the mounting handle;
when the connecting mechanism is dismounted, the handle is required to be lifted upwards to rotate 90 degrees, the wedge-shaped block is placed on the boss of the left shell and moves upwards along with the handle, the wedge-shaped block is separated from the surface of the ratchet wheel, the ratchet wheel can rotate bidirectionally, the front wheel of the wheelchair is restored to be in contact with the ground under the action of gravity, and after the handle is rotatably mounted, the connecting rod of the connecting mechanism can be dismounted from the through hole of the ratchet wheel shaft after the set screw is loosened.
2. The auxiliary device according to claim 1, wherein the clamping blocks are U-shaped blocks, and a hollow structure is formed between the two clamping blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710600414.1A CN107343831B (en) | 2017-07-21 | 2017-07-21 | Auxiliary device suitable for common wheelchair electrodynamic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710600414.1A CN107343831B (en) | 2017-07-21 | 2017-07-21 | Auxiliary device suitable for common wheelchair electrodynamic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107343831A CN107343831A (en) | 2017-11-14 |
| CN107343831B true CN107343831B (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710600414.1A Active CN107343831B (en) | 2017-07-21 | 2017-07-21 | Auxiliary device suitable for common wheelchair electrodynamic |
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| Country | Link |
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| CN (1) | CN107343831B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108852674B (en) * | 2018-08-20 | 2023-08-04 | 古交市银河镁业有限公司 | Multifunctional bidirectional safety connection device and connection method for wheelchair |
| FR3102927B1 (en) * | 2019-11-12 | 2023-07-07 | Fond Dentreprise Safran Pour Linsertion | Connection system for connecting a wheelchair to a scooter equipped with at least one motorized wheel. |
| CN115024906A (en) * | 2021-02-22 | 2022-09-09 | 吴振维 | Drive device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066032A (en) * | 1990-09-07 | 1991-11-19 | Vooren Charles R Van | Wheel chair cycle apparatus |
| CN2241535Y (en) * | 1995-12-27 | 1996-12-04 | 全国残疾人用品开发供应总站 | Towing device of hand chair with wheels |
| US6669222B1 (en) * | 2002-08-09 | 2003-12-30 | John M. Barrett | Folding unicycle attachment for a wheelchair |
| CN201537187U (en) * | 2009-11-20 | 2010-08-04 | 李茂顺 | Wheelchair-assisting separated power assisting device |
| CN102805693A (en) * | 2012-09-07 | 2012-12-05 | 昆明理工大学 | Mechanical self-powered wheelchair for walking up and down stairs |
| CN104055633A (en) * | 2014-06-27 | 2014-09-24 | 谢叻 | Combined electric wheelchair headstock |
| CN104758127A (en) * | 2015-03-25 | 2015-07-08 | 谢空成 | Quick connecting structure for electrically propelled wheelchair head and wheelchair and electrically propelled wheelchair head |
| CN204623672U (en) * | 2015-04-21 | 2015-09-09 | 王建敏 | A kind of wheelchair pedal car being combined in wheelchair |
-
2017
- 2017-07-21 CN CN201710600414.1A patent/CN107343831B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066032A (en) * | 1990-09-07 | 1991-11-19 | Vooren Charles R Van | Wheel chair cycle apparatus |
| CN2241535Y (en) * | 1995-12-27 | 1996-12-04 | 全国残疾人用品开发供应总站 | Towing device of hand chair with wheels |
| US6669222B1 (en) * | 2002-08-09 | 2003-12-30 | John M. Barrett | Folding unicycle attachment for a wheelchair |
| CN201537187U (en) * | 2009-11-20 | 2010-08-04 | 李茂顺 | Wheelchair-assisting separated power assisting device |
| CN102805693A (en) * | 2012-09-07 | 2012-12-05 | 昆明理工大学 | Mechanical self-powered wheelchair for walking up and down stairs |
| CN104055633A (en) * | 2014-06-27 | 2014-09-24 | 谢叻 | Combined electric wheelchair headstock |
| CN104758127A (en) * | 2015-03-25 | 2015-07-08 | 谢空成 | Quick connecting structure for electrically propelled wheelchair head and wheelchair and electrically propelled wheelchair head |
| CN204623672U (en) * | 2015-04-21 | 2015-09-09 | 王建敏 | A kind of wheelchair pedal car being combined in wheelchair |
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| Publication number | Publication date |
|---|---|
| CN107343831A (en) | 2017-11-14 |
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