CN213047768U - Intelligent lifting type stair climbing wheelchair - Google Patents
Intelligent lifting type stair climbing wheelchair Download PDFInfo
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- CN213047768U CN213047768U CN202020664793.8U CN202020664793U CN213047768U CN 213047768 U CN213047768 U CN 213047768U CN 202020664793 U CN202020664793 U CN 202020664793U CN 213047768 U CN213047768 U CN 213047768U
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Abstract
The utility model discloses an intelligence over-and-under type stairs-climbing wheelchair belongs to wheelchair technical field, and the wheelchair includes: the left side and the right side of the upper end of the seat are respectively provided with an armrest, one armrest is provided with an operating rod, four corners of the bottoms of the first frame plate and the second frame plate are respectively connected with a moving wheel through a third lifting mechanism, and the moving wheels are respectively provided with a locking mechanism; a first lifting mechanism is arranged between the seat layer and the upper layer of the wheelchair; a second lifting mechanism is arranged between the upper layer of the wheelchair and the lower layer of the wheelchair. The beneficial effects of the utility model reside in that: through several groups of elevating system's combination, can realize the action of stepping on, downstairs of step-by-step, change the motion trail of slope into the removal of horizontal direction and vertical direction, have higher stability, can improve the security of using, simultaneously, the motion process of this wheelchair upstairs and downstairs is similar the action of ordinary people upstairs and downstairs, can bring a good use and experience the sense for the user.
Description
Technical Field
The utility model relates to a wheelchair technical field especially relates to an intelligence over-and-under type stairs-climbing wheelchair.
Background
The wheelchair, as a tool for replacing two legs with wheels, has undergone thousands of years of evolution and development, and still has faithful effectiveness for people with inconvenient legs and feet. Unlike the past, the building becomes the residence of most people nowadays, so that the daily life of people becomes inseparable from stairs and steps. Although the installation of an elevator can bring convenience to wheelchair users to a certain extent, in many places with limited conditions, such as residential buildings with floors less than seven floors or between two floors with small height difference, stairs are still the mainstream path for people to go upstairs and downstairs. In the case of such a terrain with a remarkable height difference and a steep height difference, it is very difficult for a common wheelchair to finish the movement of going upstairs and downstairs without assistance of other people, and meanwhile, serious potential safety hazards are brought.
Nowadays, there are many designs of intelligent stair climbing wheelchair mechanisms on the market, and these wheelchair mechanisms have the following problems: the crawler-type wheelchair finishes the actions of going upstairs and downstairs through the rotation of the crawler, but the crawler has large friction force and poor stability when inclined, and can slide downwards due to improper friction contact, thereby causing danger; the size of a three-wheel mechanism in the three-wheel wheelchair is fixed, the three-wheel mechanism is difficult to deal with stairs with different specifications, different heights or different widths, a power mechanism with higher performance is needed, and the risk of falling downwards exists in the process of going downstairs; the two-wheeled wheelchair needs to be internally provided with a gyroscope and an intelligent control system, so that the cost is high, the gravity center of the wheelchair is higher, potential safety hazards are easy to generate, and psychological discomfort and tension can be brought to a user in the process of going upstairs and downstairs. Therefore, in order to solve the problem, it is urgently needed to design an intelligent wheelchair capable of independently completing stable and safe upstairs and downstairs actions so as to meet the needs of practical use.
Disclosure of Invention
In order to solve the technical problem, the utility model provides an intelligence over-and-under type stairs-climbing wheelchair.
The utility model provides a technical problem can adopt following technical scheme to realize:
an intelligent lift stair-climbing wheelchair, the wheelchair comprising:
the seat layer comprises seats, the left side and the right side of the upper end of each seat are provided with armrests, and one armrest is provided with an operating rod;
the wheelchair comprises a wheelchair upper layer, a first frame plate and a second frame plate, wherein the four corners of the bottom of the first frame plate are respectively connected with first moving wheels through third lifting mechanisms;
the lower wheelchair layer comprises a second frame plate, and the four corners of the bottom of the second frame plate are respectively connected with second moving wheels through third lifting mechanisms;
the first moving wheel and the second moving wheel are both provided with locking mechanisms;
a first lifting mechanism is arranged between the seat layer and the upper layer of the wheelchair and comprises a first upper-layer frame plate and a second upper-layer frame plate, the first upper-layer frame plate and the second upper-layer frame plate are connected through a plurality of groups of connecting rods arranged in parallel, and a first hydraulic cylinder is arranged between each group of connecting rods;
a second lifting mechanism is arranged between the upper layer of the wheelchair and the lower layer of the wheelchair, the second lifting mechanism comprises a first lower layer frame plate and a second lower layer frame plate, and a plurality of groups of second hydraulic cylinders which are vertically arranged are arranged between the first lower layer frame plate and the second lower layer frame plate;
the third lifting mechanism comprises a third hydraulic cylinder, and the tail end of the third hydraulic cylinder is connected with the movable wheel through a support rod.
Preferably, the wheelchair upper layer and the wheelchair lower layer further comprise screw groups, and the screw groups comprise a left screw group and a right screw group which are respectively arranged inside the first frame plate and the second frame plate;
the first frame plate with the same one end of second frame plate is equipped with first drive belt and third drive belt respectively, the both ends of first drive belt cup joint respectively on the lead screw of the right-hand member in the left side lead screw group with on the lead screw of the left end in the right side lead screw group, the both ends of third drive belt cup joint respectively in the lead screw group with two adjacent with one side on the lead screw.
Preferably, driving motors are respectively arranged below the first frame plate and above the second frame plate and close to the first transmission belt, and each driving motor is connected with one end of the corresponding first transmission belt through a second transmission belt.
Preferably, the locking mechanism is realized by adopting a brake, and the brake comprises a cam telescopic rod, a spring and a pressure plate;
the cam telescopic rod is matched with the spring, so that the pressure plate presses on the surface of the moving wheel to lock the moving wheel.
Preferably, the two sides of the lower layer of the wheelchair are respectively provided with a third frame plate which is vertically arranged, and the inner sides of the third frame plates are respectively provided with a hydraulic pump.
Preferably, a moving wheel motor is arranged on the second moving wheel.
Preferably, the screw set is composed of a ball screw.
Preferably, a sensor is further arranged on the third hydraulic cylinder.
The beneficial effects of the utility model reside in that:
the utility model discloses a several groups of elevating system's combination can realize stepping on, the marching type action of going downstairs, changes the movement track of slope into the removal of horizontal direction and vertical direction, has higher stability, can improve the security of using, and simultaneously, the similar conventional person's of motion process of this wheelchair going upstairs and downstairs action can bring a good use for the user and experience the sense.
Drawings
FIG. 1 is a three-dimensional structure diagram of an intelligent lifting stair-climbing wheelchair;
FIG. 2 is a front view of the intelligent lifting stair-climbing wheelchair of the present invention;
FIG. 3 is a right side view of the intelligent lifting stair-climbing wheelchair of the present invention;
fig. 4 is a top sectional view of the intelligent lifting stair-climbing wheelchair of the present invention.
Description of reference numerals:
1 supporting rod, 2 moving wheel motors, 3 third hydraulic cylinders, 4 hydraulic pumps, 5 first frame plates, 6 first upper frame plates, 7 second upper frame plates, 8 operating rods, 9 seats, 10 handrails, 11 first lower frame plates, 12 second hydraulic cylinders, 13 second lower frame plates, 14 second frame plates, 15 gears, 16 second moving wheels, 17 third frame plates, 18 sensors, 19 second supporting rods, 20 connecting rods, 21 first hydraulic cylinders, 22 seat fixing seats, 23 connecting rod shafts, 24 first lifting mechanism fixing seats, 251 cam lifting and retracting rods, 252 springs, 253 pressure plates, 26 first moving wheels, 27 lead screws, 281 first driving belts, 282 second driving belts, 283 third driving belts and 29 driving motors.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
An intelligent lifting stair climbing wheelchair, as shown in fig. 1-4, the wheelchair comprising:
the seat layer comprises a seat 9, armrests 10 are arranged on the left side and the right side of the upper end of the seat 9, and an operating rod 8 is arranged on one armrest 10;
the wheelchair comprises an upper layer and a lower layer, wherein the upper layer comprises a first frame plate 5, and four corners of the bottom of the first frame plate 5 are respectively connected with first moving wheels 26 through third lifting mechanisms;
the lower wheelchair layer comprises a second frame plate 14, and the four corners of the bottom of the second frame plate 14 are respectively connected with second moving wheels 16 through third lifting mechanisms;
the first moving wheel 26 and the second moving wheel 16 are both provided with locking mechanisms;
a first lifting mechanism is arranged between the seat layer and the upper layer of the wheelchair, the first lifting mechanism comprises a first upper frame plate 6 and a second upper frame plate 6, the first upper frame plate 6 and the second upper frame plate 6 are connected through a plurality of groups of connecting rods 20 arranged in parallel, and a first hydraulic cylinder 21 is arranged between each group of connecting rods 20;
a second lifting mechanism is arranged between the upper layer and the lower layer of the wheelchair, the second lifting mechanism comprises a first lower layer frame plate 11 and a second lower layer frame plate 13, and a plurality of groups of second hydraulic cylinders 12 which are vertically arranged are arranged between the first lower layer frame plate 11 and the second lower layer frame plate 13;
the third elevating system includes third pneumatic cylinder 3, and the end of third pneumatic cylinder 3 passes through bracing piece 1 and connects the removal wheel.
Specifically, in a preferred embodiment, the lifting stair-climbing wheelchair mainly comprises three layers, which are respectively: a seat layer, a wheelchair upper layer and a wheelchair lower layer; the seat layer comprises a seat 9, two armrests 10 are symmetrically welded on the left side and the right side of the seat 9, the operating rod 8 is arranged on one of the armrests 10, a seat fixing seat 22 is arranged on the first upper layer shelf board 6, and the seat 9 is fixed on the seat fixing seat 22 through a screw M16; the upper layer of the wheelchair is a rectangular first frame plate 5, the upper part of the first frame plate 5 is connected with a seat 9 sequentially through a second upper frame plate 6, a plurality of groups of connecting rods 20 and the first upper frame plate 6, a first lifting mechanism fixing seat 24 is arranged on the first frame plate 5, the first lifting mechanism fixing seat 24 is L-shaped, two groups of screws M16 horizontally and vertically penetrate through the first lifting mechanism fixing seat 24 respectively to fix the second upper frame plate 6 on the first frame plate 5, the plurality of groups of connecting rods 20 are arranged between the first upper frame plate 6 and the second upper frame plate 6 in parallel, two ends of each group of connecting rods 20 are fixedly connected with the first upper frame plate 6 and the second upper frame plate 6 respectively, and a transverse first hydraulic cylinder 21 is connected between connecting rod shafts 23 of each group of connecting rods 20; the lower layer of the wheelchair is a rectangular second frame plate 14, a first lower layer frame plate 11, a second hydraulic cylinder 12 and a second lower layer frame plate 13 are sequentially arranged between the first frame plate 5 and the second frame plate 14, the second hydraulic cylinder 12 comprises a hydraulic cylinder group and a second support rod 19 correspondingly connected with each hydraulic cylinder group, the second lower layer frame plate 13 is fixedly connected with the other end of the hydraulic cylinder group, and the other ends of the first lower layer frame plate 11 and the second support rod 19 are fixedly connected; the bottoms of the four corners of the first frame plate 5 and the second frame plate 14 are respectively connected with a moving wheel through a third hydraulic cylinder 3 and a support rod 1, and the moving wheel is provided with a locking mechanism for locking the moving wheel and fixing the moving wheel. This kind of building wheelchair is climbed to over-and-under type passes through several groups elevating system's combination, and the movement track of incline direction changes the removal of horizontal direction and vertical direction into when going upstairs and downstairs, and stability is higher, takes place danger when avoiding going upstairs and downstairs, and is safe in utilization, can use elevating system to adjust the height of wheelchair simultaneously, makes the focus of wheelchair can not too high, also can not cross lowly, reduces the potential safety hazard.
As a preferred embodiment, the lifting stair-climbing wheelchair is characterized in that the upper layer and the lower layer of the wheelchair further comprise screw sets, and the screw sets comprise a left screw set and a right screw set which are respectively arranged inside the first frame plate 5 and the second frame plate 14;
the same end of the first frame plate 5 and the second frame plate 14 is provided with a first transmission belt 281 and a third transmission belt 283, the two ends of the first transmission belt 281 are sleeved on the screw 27 at the rightmost end in the left screw group and the screw 27 at the leftmost end in the right screw group respectively, and the two ends of the third transmission belt 283 are sleeved on the two adjacent screws 27 at the same side in the screw group respectively.
Specifically, in this embodiment, the inside of first frame plate 5 and second frame plate 14 all is equipped with the lead screw group, all be equipped with the spout of placing lead screw 27 on first frame plate 5 and the second frame plate 14, the lateral part of first frame plate 5 and second frame plate 14 still is equipped with the perforation that corresponds with the spout, lead screw 27 arranges in the spout, the perforation is passed at the both ends of lead screw 27, lead screw group comprises 6 lead screws 27 in this embodiment, but not limited to this, 6 lead screws 27 level are placed in the spout, first drive belt 281 cover is established on two middle lead screws 27, third drive belt 283 overlaps respectively and is established on two adjacent lead screws 27 of same one side, the both ends of second drive belt 282 overlap respectively and are established between the one end of first drive belt 281 and driving motor 29, the setting of straying between every drive belt.
As a preferred embodiment, the lifting stair climbing wheelchair is characterized in that sliding supports which correspond to the sliding grooves in the first frame plate 5 one by one are arranged above the first lower frame plate 11, the sliding supports and the first lower frame plate 11 are integrally formed, the screw rods 27 in the first frame plate 5 correspond to the sliding supports one by one, and the screw rods rotate to drive the sliding supports to translate forwards and backwards, so that the upper layer of the wheelchair can translate. Similarly, the lower part of the second lower frame plate 13 is provided with sliding supports which are in one-to-one correspondence with the sliding grooves in the second frame plate 14, the sliding supports and the second lower frame plate 13 are integrally formed, the screw rods 27 in the second frame plate 14 are in one-to-one correspondence with the sliding supports, and the screw rods 27 rotate to drive the sliding supports to move forwards and backwards, so that the lower layer of the wheelchair can move horizontally.
In a preferred embodiment, the elevating stair-climbing wheelchair is provided with driving motors 29 respectively below the first frame plate 5 and above the second frame plate 14 at positions close to the first driving belt 281, and each driving motor 29 is connected to one end of the corresponding first driving belt 281 through a second driving belt 282.
Specifically, in this embodiment, the positions close to the first driving belt 281 are respectively provided with the driving motor 29 corresponding to the positions below the first frame plate 5 and above the second frame plate 14, the bearing of the driving motor 29 is connected with one end of the first driving belt 281 through the second driving belt 282, during motor driving, the bearing of the driving motor 29 drives the first driving belt 281 to rotate through the second driving belt 282, the first driving belt 281 drives the middle two screws 27 to rotate, thereby driving the third driving belt 283 to perform corresponding actions, and further realizing rotation of the screw group, the screws 27 convert the rotation of the screws 27 into relative horizontal movement of the upper layer and the lower layer of the wheelchair, space is saved while stability in the using process is improved, and the moving distance can be determined through rotation number quantization.
In a preferred embodiment, the lifting stair-climbing wheelchair is characterized in that the locking mechanism is realized by a brake, and the brake comprises a cam telescopic rod 251, a spring 252 and a pressure plate 253;
Specifically, in the embodiment, the brake fixes the U-shaped brake bracket on the moving wheel bracket of the moving wheel through four screws M12 on two sides, the cam telescopic rod 251 moves downwards and extends to press the spring 252, so that the spring 252 deforms, pushes the spring brake rod, presses the pressure plate at the other end of the spring brake rod on the surface of the moving wheel, and locks the moving wheel to be fixed; the cam telescopic rod 251 moves upwards to contract, so that the spring 252 is restored to the original state, the pressure plate at the other end of the spring brake rod leaves the surface of the moving wheel, and the moving wheel is unlocked.
In a preferred embodiment, the lifting stair climbing wheelchair is provided with third frame plates 17 which are vertically arranged on two sides of the lower layer of the wheelchair, the third frame plates 17 are vertically arranged on two side edges of the second frame plates 14, hydraulic pumps 4 are respectively arranged on the inner sides of the third frame plates 17, and the hydraulic pumps 4 suck oil from a hydraulic oil tank, form pressure oil to be discharged and send the pressure oil to hydraulic cylinders.
In a preferred embodiment, the lifting stair-climbing wheelchair is provided with a moving wheel motor 2 on a second moving wheel 16, the moving wheel motor 2 drives the second moving wheel 16 to move, so as to realize the forward and backward movement of the wheelchair, and a gear 15 is further provided on the moving wheel motor 2.
In a preferred embodiment, the lifting stair-climbing wheelchair is provided, wherein the screw set is composed of a plurality of ball screws, and the ball screws 27 comprise screw rods, nuts, steel balls, prepressed sheets, reversers and dust protectors. The main function of the ball screw 27 is to convert the rotary motion into linear motion, the ball screw 27 is used as an active body, the nut is converted into linear motion along with the rotation angle of the screw according to the lead of the corresponding specification, the upper layer and the lower layer of the wheelchair connected with the nut seat and the nut realize the corresponding linear motion, and the wheelchair has small friction resistance and high transmission efficiency.
In a preferred embodiment, the lifting type stair climbing wheelchair is provided with a sensor 18, and the sensor 18 is used for sensing the width and depth information of steps when going upstairs and downstairs.
Two specific examples are now provided to illustrate and explain the present technical solution:
example one
The lifting stair climbing wheelchair is applied to going upstairs, and the specific steps and flows are as follows:
step 1 a: the sensor 18 on the third hydraulic cylinder 3 scans and acquires step width and depth information, the transverse hydraulic cylinder below the seat layer extends, the connecting rod 20 is straightened, the seat 9 is lifted upwards by 10-15cm, the second hydraulic cylinder 12 on the upper layer of the wheelchair and the third hydraulic cylinder 3 on the lower layer of the wheelchair are all lifted, according to the acquired step width and depth information, the second hydraulic cylinder 12 on the upper layer of the wheelchair contracts by the height of one step depth, the upper layer of the wheelchair and the seat layer move forwards, and two front wheels on the upper layer of the wheelchair just contact the upper surface of the first step.
Step 2 a: the height of a step depth is contracted by the two front third hydraulic cylinders 3 on the lower layer of the wheelchair, the lower layer of the wheelchair moves forwards, the front wheels on the upper layer of the wheelchair and the lower layer of the wheelchair are all contacted with the upper surface of the first step, the wheelchair continues to move forwards until the front wheels touch the vertical wall surface of the second step surface, in the subsequent stair climbing process, the height of the third hydraulic cylinders 3 of the wheelchair is constant and does not stretch out and draw back, and the eight movable wheels are all in a locking state.
Step 3 a: the lower wheelchair layer is used as a support, and the vertical second hydraulic cylinders 12 between the upper wheelchair layer and the lower wheelchair layer are all upwards lifted by the height of one step depth, so that the upper wheelchair layer is lifted by the height of one step relative to the lower wheelchair layer. The driving motor 29 below the first frame plate 5 works positively to drive the transmission belt to act, and further drives the screw rod group to rotate positively, so that the upper layer of the wheelchair moves forwards by one step width relative to the lower layer.
Step 4 a: the upper layer of the wheelchair is used as a supporting layer, and the second hydraulic cylinder 12 groups are contracted, so that the lower layer of the wheelchair is lifted upwards by a step height relative to the upper layer of the wheelchair. The position of the upper layer of the wheelchair is fixed, the driving motor 29 below the first frame plate 5 works reversely to drive the driving belt to act, and further the screw rod group is driven to rotate reversely, so that the lower layer of the wheelchair advances by a step width relative to the upper layer of the wheelchair.
Step 5 a: and (5) circulating the steps from the step 3 to the step 5 until climbing of each step is completed to achieve the purpose of going upstairs, and unlocking the movable wheel.
Example two
The specific steps of the lifting stair-climbing wheelchair for going downstairs are as follows:
step 1 b: the sensor 18 on the third hydraulic cylinder 3 scans and acquires step width and depth information, the transverse hydraulic cylinder below the seat layer extends, the connecting rod 20 is straightened, the seat 9 is lifted upwards by 10-15cm, according to the acquired step width and depth information, two front wheels on the upper layer of the wheelchair move forwards to exceed the edge of the first step, and the two front second hydraulic cylinders 12 on the lower layer of the first frame plate 5 extend downwards by the height of one step depth, so that the two front wheels on the upper layer of the wheelchair just contact the upper surface of the first step.
And step 2 b: the wheelchair upper layer and the seat layer move forwards, the two front third hydraulic cylinders 3 on the wheelchair lower layer extend downwards by the height of one step depth, the front wheels on the wheelchair upper layer and the wheelchair lower layer are all in contact with the upper surface of the first step, the wheelchair continues to advance to the edge where the front wheels touch the second step, in the subsequent stair descending process, the heights of the third hydraulic cylinders 3 of the wheelchair are constant and do not stretch out and draw back, and the eight moving wheels are all in a locking state.
And step 3 b: the second movable wheel 16 is unlocked, the upper layer of the wheelchair serves as a support, the driving motor 29 above the second frame plate 14 works positively, the driving belt is driven to move, the screw rod group is driven to rotate positively, the lower layer of the wheelchair moves forwards by one step width relative to the upper layer of the wheelchair, the second movable wheel 16 is locked, the height of one step depth is extended downwards by the vertical second hydraulic cylinder 12 group between the upper layer of the wheelchair and the lower layer of the wheelchair, and therefore the lower layer of the wheelchair descends by one step height relative to the upper layer of the wheelchair.
And 4 b: the first moving wheel 26 is unlocked, the lower layer of the wheelchair serves as a supporting layer, the driving motor 29 above the second frame plate 14 works reversely, the driving belt is driven to move, and then the screw rod group is driven to rotate reversely, so that the upper layer of the wheelchair moves forwards by a step width relative to the lower layer of the wheelchair, the first moving wheel 26 is locked, the vertical second hydraulic cylinder 12 group between the upper layer of the wheelchair and the lower layer of the wheelchair contracts downwards by a step depth, and the upper layer of the wheelchair descends by a step height relative to the lower layer of the wheelchair.
And step 5 b: and (5) circulating the steps from the step 3 to the step 5 until the steps are descended to achieve the purpose of going downstairs, and unlocking all the moving wheels.
The beneficial effects of the utility model reside in that:
the utility model discloses a several groups of elevating system's combination can realize stepping on, the marching type action of going downstairs, changes the movement track of slope into the removal of horizontal direction and vertical direction, has higher stability, can improve the security of using, and simultaneously, the similar conventional person's of motion process of this wheelchair going upstairs and downstairs action can bring a good use for the user and experience the sense.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (8)
1. The utility model provides an intelligence over-and-under type stairs-climbing wheelchair which characterized in that, the wheelchair includes:
the seat layer comprises seats, the left side and the right side of the upper end of each seat are provided with armrests, and one armrest is provided with an operating rod;
the wheelchair comprises a wheelchair upper layer, a first frame plate and a second frame plate, wherein the four corners of the bottom of the first frame plate are respectively connected with first moving wheels through third lifting mechanisms;
the lower wheelchair layer comprises a second frame plate, and the four corners of the bottom of the second frame plate are respectively connected with second moving wheels through third lifting mechanisms;
the first moving wheel and the second moving wheel are both provided with locking mechanisms;
a first lifting mechanism is arranged between the seat layer and the upper layer of the wheelchair and comprises a first upper-layer frame plate and a second upper-layer frame plate, the first upper-layer frame plate and the second upper-layer frame plate are connected through a plurality of groups of connecting rods arranged in parallel, and a first hydraulic cylinder is arranged between each group of connecting rods;
a second lifting mechanism is arranged between the upper layer of the wheelchair and the lower layer of the wheelchair, the second lifting mechanism comprises a first lower layer frame plate and a second lower layer frame plate, and a plurality of groups of second hydraulic cylinders which are vertically arranged are arranged between the first lower layer frame plate and the second lower layer frame plate;
the third lifting mechanism comprises a third hydraulic cylinder, and the tail end of the third hydraulic cylinder is connected with the movable wheel through a support rod.
2. The intelligent lifting stair-climbing wheelchair of claim 1, wherein the upper wheelchair layer and the lower wheelchair layer further comprise lead screw sets, the lead screw sets comprise a left lead screw set and a right lead screw set, and the lead screw sets are respectively arranged inside the first frame plate and the second frame plate;
the first frame plate with the same one end of second frame plate is equipped with first drive belt and third drive belt respectively, the both ends of first drive belt cup joint respectively on the lead screw of the right-hand member in the left side lead screw group with on the lead screw of the left end in the right side lead screw group, the both ends of third drive belt cup joint respectively in the lead screw group with two adjacent with one side on the lead screw.
3. The intelligent lifting stair climbing wheelchair as claimed in claim 2, wherein driving motors are respectively arranged below the first frame plate and above the second frame plate and close to the first transmission belt, and each driving motor is respectively connected with one end of the corresponding first transmission belt through a second transmission belt.
4. The intelligent lifting stair-climbing wheelchair as claimed in claim 1, wherein the locking mechanism is implemented by a brake, the brake comprising a cam telescopic rod, a spring and a pressure plate;
the cam telescopic rod is matched with the spring, so that the pressure plate presses on the surface of the moving wheel to lock the moving wheel.
5. The intelligent lifting stair-climbing wheelchair as claimed in claim 1, wherein vertically arranged third frame plates are respectively arranged on two sides of the lower layer of the wheelchair, and hydraulic pumps are respectively arranged on the inner sides of the third frame plates.
6. The intelligent lifting stair-climbing wheelchair as claimed in claim 1, wherein the second moving wheel is provided with a moving wheel motor.
7. The intelligent lifting stair-climbing wheelchair of claim 2, wherein the screw set is composed of ball screws.
8. The intelligent lifting stair-climbing wheelchair as claimed in claim 1, wherein a sensor is further arranged on the third hydraulic cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020664793.8U CN213047768U (en) | 2020-04-27 | 2020-04-27 | Intelligent lifting type stair climbing wheelchair |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020664793.8U CN213047768U (en) | 2020-04-27 | 2020-04-27 | Intelligent lifting type stair climbing wheelchair |
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| CN213047768U true CN213047768U (en) | 2021-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388221A (en) * | 2020-04-27 | 2020-07-10 | 孙磊 | Intelligent lifting type stair climbing wheelchair |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388221A (en) * | 2020-04-27 | 2020-07-10 | 孙磊 | Intelligent lifting type stair climbing wheelchair |
| CN111388221B (en) * | 2020-04-27 | 2024-09-24 | 孙磊 | Intelligent lifting type stair climbing wheelchair |
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