CN213190657U - Crawler folding and unfolding system of crawler-type wheelchair - Google Patents
Crawler folding and unfolding system of crawler-type wheelchair Download PDFInfo
- Publication number
- CN213190657U CN213190657U CN202021427354.1U CN202021427354U CN213190657U CN 213190657 U CN213190657 U CN 213190657U CN 202021427354 U CN202021427354 U CN 202021427354U CN 213190657 U CN213190657 U CN 213190657U
- Authority
- CN
- China
- Prior art keywords
- crawler
- sliding
- wheelchair
- track
- tube
- 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.)
- Active
Links
Images
Landscapes
- Handcart (AREA)
Abstract
The utility model relates to a wheelchair technical field, concretely relates to track system of exhibition of contracting of crawler-type wheelchair, include: the wheelchair comprises a wheelchair body, a crawler travelling mechanism, an angle positioning frame mechanism and a folding and unfolding mechanism, wherein one end of the crawler travelling mechanism is hinged with the wheelchair body; the folding and unfolding mechanism comprises a telescopic rod driving component and a positioning component; the telescopic rod driving assembly is suitable for driving the crawler belt walking mechanism to unfold; the positioning assembly is adapted to prevent the crawler from swinging. In this way, track system of exhibition of contracting of crawler-type wheelchair, simple structure, the installation is easy, has improved the convenience of operation.
Description
Technical Field
The utility model relates to a wheelchair technical field especially relates to a track system of taking down exhibits of crawler-type wheelchair.
Background
The wheelchair is an essential travel tool for the elderly, the infirm and the disabled with the injured lower limbs, the range of motion of wheelchair users is gradually enlarged along with the increase of barrier-free facilities, but the wheelchair is greatly limited by stairs. The stair climbing wheelchair can be divided into: star wheel type, crawler type and stepping support type.
The crawler-type stair climbing wheelchair is characterized in that crawler wheels are installed on the wheelchair, when a user climbs stairs, the crawler wheels need to be unfolded, certain included angles are formed between the crawler wheels and the wheelchair, when the user climbs the stairs, the crawler wheels and the wheelchair are attached and folded, the unfolding and folding actions of the crawler wheels need to be achieved through a folding and unfolding system, the existing folding and unfolding system is complex in structure, inconvenient to operate, high in installation difficulty and required to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a track folding and unfolding system of a crawler-type wheelchair, which has simple structure and easy installation and improves the convenience of operation.
In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a track deployment system for a tracked wheelchair comprising: the wheelchair comprises a wheelchair body, a crawler travelling mechanism, an angle positioning frame and a folding and unfolding mechanism, wherein one end of the crawler travelling mechanism is hinged with the wheelchair body;
the folding and unfolding mechanism comprises a telescopic rod driving component and a positioning component;
the telescopic rod driving assembly is suitable for driving the crawler belt walking mechanism to unfold;
the positioning assembly is adapted to prevent the crawler from swinging.
The utility model discloses a preferred embodiment, crawler travel mechanism includes left track stay tube, right track stay tube and pivot, the both ends of left side track stay tube are rotated respectively and are connected with left synchronizing wheel, be connected with the hold-in range between the synchronizing wheel of a left side, the both ends of right track stay tube are rotated respectively and are connected with right synchronizing wheel, be connected with between the synchronizing wheel of the right side the hold-in range, be connected through the pivot between left synchronizing wheel of left side track stay tube lower extreme and the right synchronizing wheel of right track stay tube lower extreme, the excircle of pivot is connected with the gear box, the input interface of gear box is connected with the motor, the medial surface of left side track stay tube and right track stay tube is provided with waist shape.
In a preferred embodiment of the present invention, the telescopic rod driving assembly comprises a sliding tube and a detachable gas spring connected in the sliding tube, one end of the outer circle of the sliding tube is connected with a sliding guide block, the other end of the outer circle of the sliding tube is connected with a sliding installation block, the sliding guide block and the sliding installation block are located in the inner cavity of the left track support tube and are slidably connected with the inner cavity, and the extending end of the gas spring is connected with the left track support tube through a pin shaft.
In a preferred embodiment of the present invention, the positioning assembly comprises a sliding rod, a limit hook member engaged with one end of the sliding rod, and a wire rope control member for driving the limit hook member to disengage from the sliding rod, and the other end of the sliding rod passes through the waist-shaped hole and is connected to the sliding mounting block.
In the utility model discloses a preferred embodiment, spacing hook piece includes spacing hook installation piece, first reset spring and the spacing hook of being connected with spacing hook installation piece is articulated, spacing hook installation piece and the interior wall connection of right track stay tube, first reset spring's one end is contradicted with spacing hook and is connected, and the other end is contradicted with spacing hook installation piece and is connected.
In a preferred embodiment of the present invention, the wire rope control member includes a wire rope, an installation box body, two spacing wheels and a sliding wheel, the spacing wheel interval is set up and is connected through a pin with the inner chamber of the installation box body, a pressing slide seat located between the spacing wheels and extending to the outside is slidably connected in the installation box body, the sliding wheel is connected through a pin with the pressing slide seat, one end of the wire rope can be detached with a spacing hook and connected, the other end passes through the inner chamber of the installation box body and is connected with the inner chamber, the wire rope is connected with the surface rolling of the lower end of the spacing wheels, the wire rope is connected with the surface rolling of the upper end of the sliding wheel, and the upper end of.
In a preferred embodiment of the present invention, the angle positioning frame comprises two side plates spaced apart from each other, two side plates, one end of each side plate is connected to a first circular tube, the other end of each side plate is connected to a second circular tube, an axis of rotation is arranged in the first circular tube, the axis of rotation is connected to the wheelchair body, and the sliding rod is arranged in the second circular tube.
The utility model has the advantages that: the utility model provides a pair of track system of exhibition of contracting of crawler-type wheelchair expandes through telescopic link drive assembly drive track running gear and removes on stair, and positioning assembly can carry on spacingly at the expansion state to track running gear, has strengthened track running gear stability at the during operation, simple structure, and the installation is easy, has improved the convenience of operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic structural view of a preferred embodiment of a track folding and unfolding system of a track-type wheelchair according to the present invention;
FIG. 2 is a schematic view of the attachment of the crawler attachment to the angular positioning frame of FIG. 1;
FIG. 3 is a schematic structural view of the positioning assembly of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
FIG. 6 is a schematic view of the connection of the sliding wheel and the pressing slider in FIG. 4;
FIG. 7 is a schematic view of the telescoping pole drive assembly of FIG. 2;
FIG. 8 is a schematic view of the angular positioning frame of FIG. 1;
fig. 9 is a schematic structural view of the limit hook in fig. 5.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for purposes of illustration and explanation only and are not intended to limit the invention.
It should be noted that these drawings are simplified schematic views, and the basic structure of the present invention is described only in a schematic manner, and therefore, only the configuration related to the present invention is shown.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, an embodiment of the present invention includes:
a track deployment system for a tracked wheelchair comprising: the wheelchair comprises a wheelchair body 1, a crawler belt walking mechanism 20, an angle positioning frame 30 and a folding and unfolding mechanism 40, wherein one end of the crawler belt walking mechanism 20 is hinged with the wheelchair body 1, and the crawler belt walking mechanism 20 is hinged with the wheelchair body 1 through the angle positioning frame 30.
The folding and unfolding mechanism 40 comprises a telescopic rod driving component 41 and a positioning component 42.
The extension pole drive assembly 41 is adapted to drive the crawler 20 to deploy.
The positioning assembly 42 adapted to prevent the crawler belt unit 20 from swinging; when the wheelchair is used, the wheelchair body 1 can carry a person to move on the ground, when the wheelchair body 1 needs to climb stairs, the telescopic rod driving assembly 41 drives the angle positioning frame 30 to swing, thereby a certain included angle is formed between the driving crawler belt walking mechanism 20 and the wheelchair body 1, the positioning assembly 42 carries out angle positioning on the crawler belt walking mechanism 20, the crawler belt walking mechanism 20 drives the wheelchair body 1 to move on the inclined stairs, the using effect is improved, when the wheelchair body 1 is in contact with the horizontal ground, the positioning assembly 42 is in a loosening state, the crawler belt walking mechanism 20 is pushed to be attached to the wheelchair body 1, a furled state is reached, the wheelchair body 1 convenient to roll on the horizontal ground, and the convenience in operation is improved.
The crawler traveling mechanism 20 comprises a left crawler support tube 21, a right crawler support tube 22 and a rotating shaft 23, wherein two ends of the left crawler support tube 21 are respectively and rotatably connected with a left synchronizing wheel 24, a synchronizing belt 25 is connected between the left synchronizing wheels 24, two ends of the right crawler support tube 22 are respectively and rotatably connected with a right synchronizing wheel 26, the synchronizing belt 25 is connected between the right synchronizing wheels 26, the left synchronizing wheel 24 at the lower end of the left crawler support tube 21 is connected with the right synchronizing wheel 26 at the lower end of the right crawler support tube 22 through the rotating shaft 23, the outer circle of the rotating shaft 23 is connected with a gear box 27, an input interface of the gear box 27 is connected with a motor 28, and the inner side surfaces of the left crawler support tube 21 and the right crawler support tube 22 are; the motor 28 drives the left synchronizing wheel 24 and the right synchronizing wheel 26 at the two ends of the rotating shaft 23 to rotate, so that the synchronous belt 25 is driven to rotate, the wheelchair body 1 is driven to move on an inclined stair, the structure is simple, and the assembly is easy.
The telescopic rod driving component 41 comprises a sliding pipe 411 and an air spring 412 detachably connected in the sliding pipe 411, one end of the outer circle of the sliding pipe 411 is connected with a sliding guide block 413, the other end of the outer circle of the sliding pipe 411 is connected with a sliding installation block 414, the sliding guide block 413 and the sliding installation block 414 are located in the inner cavity of the left crawler support pipe 21 and are in sliding connection with the inner cavity, and the extending end of the air spring 412 is connected with the left crawler support pipe 21 through a pin shaft; simple structure, the installation is easy, and the telescopic link of air spring 412 does the action of stretching out to drive sliding tube 411 and slide in left track stay tube 21, pass through bolted connection between the afterbody of air spring 412 and sliding tube 411.
The positioning assembly 42 comprises a sliding rod 421, a limit hook 422 clamped at one end of the sliding rod 421 and a steel wire rope control member 423 for driving the limit hook 422 to be separated from the sliding rod 421, and the other end of the sliding rod passes through the waist-shaped hole 29 and is connected with the sliding installation block 414; the sliding installation block 414 slides in the left track support pipe 21, so that the sliding rod 421 is driven to move, the steel wire rope control piece 423 is operated to enable the limiting hook piece 422 to be clamped on the sliding rod 421, the telescopic rod of the air spring 412 is prevented from moving continuously, the inclined angle of the track walking mechanism 20 is limited, the structure is simple, the installation is easy, and the convenience in operation is improved.
The limiting hook member 422 comprises a limiting hook mounting block 4221, a first return spring 4222 and a limiting hook 4223 hinged with the limiting hook mounting block 4221, the limiting hook 4223 is connected with the limiting hook mounting block 4221 through a pin shaft, the limiting hook mounting block 4221 is connected with the inner wall of the right track support tube 22, one end of the first return spring 4222 is connected with the limiting hook 4223 in an abutting mode, and the other end of the first return spring 4222 is connected with the limiting hook mounting block 4221 in an abutting mode; when the wire rope control member 423 is operated, the bayonet of the limit hook 4223 is opened, the sliding rod 421 moves into the bayonet of the limit hook 4223, and the limit hook 4223 returns to the initial state under the elastic force action of the first return spring 4222, so that the sliding rod 421 is prevented from moving.
The wire rope control member 423 comprises a wire rope 4231, an installation box 4232, two limit wheels 4233 and a sliding wheel 4234, the limit wheels 4233 are arranged at intervals and are connected with the inner cavity of the installation box 4232 through pin shafts, a pressing sliding seat 4235 which is positioned between the limit wheels 4233 and extends to the outer side is connected in the installation box 4232 in a sliding mode, the sliding wheel 4234 is connected with the pressing sliding seat 4235 through pin shafts, one end of the wire rope 4231 is detachably connected with a limit hook 4223, the other end of the wire rope 4231 penetrates through the inner cavity of the installation box 4232 and is connected with the inner cavity, the wire rope 4231 is connected with the surface of the lower end of the limit wheel 4233 in a rolling mode, the wire rope 4231 is connected with the surface of the upper end of the sliding wheel 4234 in a rolling; the sliding seat 4235 is manually operated, so that the sliding wheel 4234 drives the steel wire rope 4231 between the two limiting wheels 4233 to move upwards, the steel wire rope 4231 is pulled, the bayonet of the limiting hook 4223 is opened, the sliding rod 421 enters the inner cavity of the limiting hook 4223, the pressing sliding seat 4235 is loosened, the steel wire rope 4231 returns to the initial state under the elastic action of the second return spring 4236, the limiting hook 4223 returns to the initial state under the action of the first return spring 4222 to limit the sliding rod 421, the structure is simple, the installation is easy, and the convenience in operation is improved.
The angle positioning frame 30 comprises two side plates 31 arranged at intervals, a first round pipe 32 is connected between one end of each of the two side plates 31, a second round pipe 33 is connected between the other end of each of the two side plates 31, a rotating shaft 34 penetrates through the first round pipe 32, the rotating shaft 34 is connected with the wheelchair body 1, and the sliding rod 421 penetrates through the second round pipe 33; when the sliding rod 421 slides along the length direction of the waist-shaped hole 29, the angle positioning frame 30 is driven to swing, and the angle positioning frame 30 drives the crawler belt 20 to unfold or fold.
To sum up, the utility model discloses a track system of taking up and exhibition of crawler-type wheelchair that points out, simple structure, the installation is easy, has improved the convenience of operation.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (7)
1. A track deployment system for a tracked wheelchair comprising: the wheelchair comprises a wheelchair body and a crawler traveling mechanism, wherein one end of the crawler traveling mechanism is hinged with the wheelchair body;
the folding and unfolding mechanism comprises a telescopic rod driving component and a positioning component;
the telescopic rod driving assembly is suitable for driving the crawler belt walking mechanism to unfold;
the positioning assembly is adapted to prevent the crawler from swinging.
2. The track folding and unfolding system of the track-type wheelchair as claimed in claim 1, wherein the track traveling mechanism comprises a left track supporting tube, a right track supporting tube and a rotating shaft, two ends of the left track supporting tube are respectively and rotatably connected with left synchronizing wheels, a synchronous belt is connected between the left synchronizing wheels, two ends of the right track supporting tube are respectively and rotatably connected with right synchronizing wheels, the synchronous belt is connected between the right synchronizing wheels, the left synchronizing wheel at the lower end of the left track supporting tube is connected with the right synchronizing wheel at the lower end of the right track supporting tube through the rotating shaft, the outer circle of the rotating shaft is connected with a gear box, an input interface of the gear box is connected with a motor, and the inner side surfaces of the left track supporting tube and the right track supporting tube are.
3. The track folding and unfolding system of the crawler-type wheelchair as claimed in claim 2, wherein the telescopic rod driving assembly comprises a sliding tube and a gas spring detachably connected in the sliding tube, one end of the excircle of the sliding tube is connected with a sliding guide block, the other end of the excircle of the sliding tube is connected with a sliding installation block, the sliding guide block and the sliding installation block are located in the inner cavity of the left track supporting tube and are in sliding connection with the left track supporting tube, and the extending end of the gas spring is connected with the left track supporting tube through a pin shaft.
4. The track retraction and extension system of a tracked wheelchair as claimed in claim 3, wherein the positioning assembly comprises a slide bar, a limit hook member snap-fitted to one end of the slide bar and a wire rope control member for actuating the limit hook member to disengage from the slide bar, the other end of the slide bar passing through the slotted hole and being connected to the slide mounting block.
5. The track folding and unfolding system of the crawler-type wheelchair as claimed in claim 4, wherein the limiting hook member comprises a limiting hook mounting block, a first return spring and a limiting hook hinged to the limiting hook mounting block, the limiting hook mounting block is connected with the inner wall of the right track supporting tube, one end of the first return spring is connected with the limiting hook in an abutting mode, and the other end of the first return spring is connected with the limiting hook mounting block in an abutting mode.
6. The track folding and unfolding system of the crawler-type wheelchair as claimed in claim 4, wherein the wire rope control member comprises a wire rope, a mounting box body, two limiting wheels and a sliding wheel, the limiting wheels are arranged at intervals and connected with the inner cavity of the mounting box body through a pin shaft, a pressing slide seat which is arranged between the limiting wheels and extends to the outside is connected in the mounting box body in a sliding mode, the sliding wheel is connected with the pressing slide seat through a pin shaft, one end of the wire rope is detachably connected with the limiting hook, the other end of the wire rope penetrates through the inner cavity of the mounting box body and is connected with the inner cavity of the mounting box body, the wire rope is connected with the surface of the lower end of the limiting wheel in a rolling mode, the wire rope is connected with the.
7. The track folding and unfolding system of the crawler-type wheelchair as claimed in claim 4, wherein the angle positioning frame comprises two side plates arranged at intervals, a first circular tube is connected between one ends of the two side plates, a second circular tube is connected between the other ends of the two side plates, a rotating shaft penetrates through the first circular tube, the rotating shaft is connected with the wheelchair body, and the sliding rod penetrates through the second circular tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021427354.1U CN213190657U (en) | 2020-07-20 | 2020-07-20 | Crawler folding and unfolding system of crawler-type wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021427354.1U CN213190657U (en) | 2020-07-20 | 2020-07-20 | Crawler folding and unfolding system of crawler-type wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213190657U true CN213190657U (en) | 2021-05-14 |
Family
ID=75834061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021427354.1U Active CN213190657U (en) | 2020-07-20 | 2020-07-20 | Crawler folding and unfolding system of crawler-type wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213190657U (en) |
-
2020
- 2020-07-20 CN CN202021427354.1U patent/CN213190657U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205339476U (en) | Fold and help capable shallow | |
| US3995882A (en) | Folding support structure | |
| US2656874A (en) | Walking aid | |
| CN107719449A (en) | The wheel stand gathering mechanism and vehicle frame of a kind of children trolley | |
| CN213190657U (en) | Crawler folding and unfolding system of crawler-type wheelchair | |
| CN207747928U (en) | A kind of the wheel stand gathering mechanism and vehicle frame of children trolley | |
| CN114795695A (en) | Power-assisted robot | |
| CN113756590A (en) | Auxiliary accurate docking equipment for docking of assembly type building | |
| CN113716504A (en) | Inspection shaft lid hoisting accessory is used in portable municipal construction | |
| CN109209214B (en) | electric power installation engineering is with ladder of ascending a height convenient to remove | |
| CN206086834U (en) | Foldable bicycle frame | |
| CN113967135A (en) | Light caterpillar stair-climbing wheelchair | |
| JP2023517854A (en) | foldable wheelchair | |
| CN201703409U (en) | A skeleton of a baby stroller | |
| CN219167009U (en) | Folding rollator with high safety | |
| CN209752049U (en) | Positioning mechanism for foldable stand of running machine | |
| RU153154U1 (en) | VEHICLE FOR DISABLED PEOPLE | |
| CN216508545U (en) | Handcart with sunshade | |
| CN222332503U (en) | A operation platform for girder steel construction | |
| CN115107842B (en) | Portable folding emergency rescue trolley and use method thereof | |
| CN209976449U (en) | Folding ladder vehicle for tunnel | |
| CN219127121U (en) | Gravity center automatic supporting type crawler stair climbing machine | |
| CN215594824U (en) | Scaffold convenient to move | |
| CN218092881U (en) | Automatic folding vehicle ladder of shelter vehicle | |
| KR20250000142A (en) | Wheelchair auxiliary power system equipped with auxiliary front wheels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |