CN214189852U

CN214189852U - Supporting foot wheel mechanism and stair climbing vehicle

Info

Publication number: CN214189852U
Application number: CN202023163537.XU
Authority: CN
Inventors: 白岚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-14
Anticipated expiration: 2030-12-24

Abstract

The utility model provides a supporting legs wheel mechanism and stair climbing car relates to stair climbing appurtenance technical field, and when having solved the use stair climbing car that exists among the prior art and downstairs, need accompany and attend to and lift to press the conversion that crawler-type stair climbing car carried out from the horizontal walking to the slope walking, realized the automatic technical problem that downstairs of stair climbing machine. The device comprises a push rod bracket, a guide body, a push rod body and a caster body, wherein the push rod body comprises a push rod body and a push rod, the push rod body is connected with the push rod, and the push rod body can push the push rod to move; the upper end of the push rod body is connected with the push rod support through a pin shaft, the lower end of the push rod penetrates through the guide body and is connected with the caster body, the push rod support and the guide body are both connected to a crawler machine of the stair climbing vehicle, and the push rod can push the caster body to move along the length direction of the push rod support; when the stair climbing vehicle goes downstairs and inclines, the push rod pushes the foot wheel body to contact the ground, and the foot wheel supporting mechanism can support the stair climbing vehicle. The utility model is used for increase the automatic security of downstairs of stair machine is taken to the patient.

Description

Supporting foot wheel mechanism and stair climbing vehicle

Technical Field

The utility model belongs to the technical field of climb building appurtenance technique and specifically relates to a supporting foot wheel mechanism and climb building car are related to.

Background

The number of disabled and elderly people who need to go out in a wheelchair due to physical defects or diseases is large. Many of them live in buildings without elevator facilities, and the difficulty that the people cannot go up and down stairs and the family is hard to bear is caused. At present, the stair climbing vehicle is an improvement to the wheelchair, the wheelchair is the important tool of riding instead of walk of old person and disabled person, in the building that does not have the elevator, it is very inconvenient to go upstairs and downstairs discrepancy, for this reason, electronic stair climbing vehicle has appeared in the market, and electronic stair climbing vehicle owner is including crawler-type stair climbing vehicle and star wheel formula stair climbing vehicle, and wherein, the comparison of crawler-type stair climbing vehicle is popularized.

The crawler-type stairs-climbing vehicle is more steady, also better operation, the old man has also not been laboured again upstairs or downstairs, but when using the crawler-type stairs-climbing vehicle downstairs, need climb the slope walking conversion that the stairs were walked to from the level with the crawler-type stairs-climbing vehicle, at this in-process, to the inflexible patient of crawler-type stairs-climbing vehicle operation, need accompanying person to lift and press the crawler-type stairs-climbing vehicle and change, in order to avoid causing the emergence of accident simultaneously, reduce the potential safety hazard, accompanying person's labour has been increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a supporting legs wheel mechanism and stair climbing car to when solving the use stair climbing car that exists among the prior art and going downstairs, need accompany and attend to the conversion that the person lifted and pressed crawler-type stair climbing car and carried out from the horizontal walking to the slope walking, realize the automatic technical problem who goes downstairs of stair climbing car. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a supporting foot wheel mechanism, which comprises a push rod bracket, a guide body, a push rod body and a foot wheel body, wherein the push rod body comprises a push rod body and a push rod, the push rod body is connected with the push rod, and the push rod body can push the push rod to move;

the upper end of the push rod body is connected with the push rod support through a pin shaft, the lower end of the push rod penetrates through the guide body and is connected with the caster body, the push rod support and the guide body are both connected to a crawler machine of the stair climbing vehicle, and the push rod can push the caster body to move along the length direction of the push rod support;

when the stair climbing vehicle inclines downstairs, the push rod pushes the caster body to contact the ground, and the caster supporting mechanism can support the stair climbing vehicle.

Optionally, the supporting caster mechanism is arranged perpendicular to the crawler machine.

Optionally, the caster body includes a caster bracket, a caster shaft and a rolling caster, the rolling caster is located in the caster bracket, the caster shaft passes through the rolling caster and the caster bracket, the caster shaft is connected with the rolling caster in a matching manner, the caster shaft is connected with the caster bracket bearing, and the caster bracket is in threaded connection with the push rod.

Optionally, the truckle support includes U type frame and the spliced pole of U type structure, U type frame with spliced pole fixed connection, the caster that rolls is located just in the U type frame the caster with U type frame passes through the caster axle is connected, the spliced pole can stretch into in the push rod just the spliced pole with push rod threaded connection.

Optionally, the push rod body is an electric push rod or an electro-hydraulic push rod.

Optionally, the guide body includes guide holder and uide bushing, the uide bushing is located in the guide holder just the outer wall of uide bushing with the inner wall cooperation of guide holder is connected, the outer wall of guide holder with the track machine is connected, the push rod passes the uide bushing.

Optionally, the inner top wall of the push rod support is provided with a connecting part, the upper end of the push rod body extends into the connecting part, and the pin shaft penetrates through the connecting part and the push rod body and is connected with the connecting part and the push rod body.

A stair climbing vehicle comprises a supporting foot wheel mechanism.

Optionally, the number of the supporting foot wheel mechanisms is two.

Optionally, the crawler crane comprises a front wheel lifting mechanism, a rear wheel lifting mechanism and a power shaft, wherein the crawler crane is connected with the power shaft through a supporting mechanism, the power shaft is rotatably connected with the supporting mechanism, the front wheel lifting mechanism is rotatably connected with the power shaft, the rear wheel lifting mechanism is connected with the power shaft, the power shaft is close to the rear wheel lifting mechanism, and the supporting foot wheel mechanism is close to the rear wheel lifting mechanism.

The utility model provides a pair of supporting foot wheel mechanism, when climbing the stair car and downstairs, will convert into stair walking state in-process from ground walking state, stretch out the push rod, make the foot wheel body contact ground, the crawler-type machine is the tilt state simultaneously, the crawler-type machine keeps away from the one end and the ground contact of push rod body, make the push rod, crawler-type machine and ground three form a triangle-shaped structure, and then make the climbing car need not accompany the personnel's help, the patient oneself just can steadily change, accompany personnel's labour has been reduced, when using the climbing car to downstairs, need accompany personnel to lift and press the crawler-type conversion that the climbing car carried out from the horizontal walking to the slope walking, realize the automatic technical problem of downstairs of climbing car.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a stair climbing vehicle provided by an embodiment of the present invention;

fig. 2 is a schematic side view of a supporting foot wheel mechanism according to an embodiment of the present invention;

fig. 3 is a side sectional view of a supporting foot wheel mechanism provided in an embodiment of the present invention;

fig. 4 is a schematic structural view of the stair climbing vehicle according to the embodiment of the present invention in an initial state of going downstairs;

fig. 5 is a schematic structural view illustrating the lifting of the front wheel lifting mechanism of the stair climbing vehicle according to the embodiment of the present invention;

fig. 6 is a schematic structural view of the support foot wheel mechanism of the stair climbing vehicle provided by the embodiment of the invention extending downstairs;

fig. 7 is a schematic structural view illustrating the lifting of the rear wheel lifting mechanism of the stair climbing vehicle according to the embodiment of the present invention;

fig. 8 is a schematic structural view of the stair climbing vehicle according to the embodiment of the present invention;

fig. 9 is a schematic structural view of the stair climbing vehicle according to the embodiment of the present invention moving forward and going downstairs;

fig. 10 is a schematic structural view illustrating the supporting caster mechanism provided in the embodiment of the present invention gradually retracts as the stair climbs;

fig. 11 is a schematic structural view of the supporting foot wheel mechanism provided in the embodiment of the present invention fully retracting as the stair climbing vehicle advances;

in figure 1, a push rod bracket; 11. a connecting portion; 2. a guide body; 21. a guide seat; 22. a guide sleeve; 3. a push rod body; 31. pushing the rod body; 32. a push rod; 4. a caster body; 41. a caster bracket; 411. a U-shaped frame; 412. connecting columns; 42. a caster shaft; 43. a roll caster; 5. a pin shaft; 6. a crawler machine; 7. a front wheel lifting mechanism; 8. a rear wheel lifting mechanism; 9. a power shaft; 10. and a support mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element 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," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is also to be understood that the terms "mounted", "connected" and "connected", unless expressly specified or limited otherwise, are intended to be interpreted broadly, as meaning either a fixed connection or a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The utility model provides a supporting foot wheel mechanism, which comprises a push rod bracket 1, a guide body 2, a push rod body 3 and a caster wheel body 4, wherein the push rod body 3 comprises a push rod body 31 and a push rod 32, the push rod body 31 is connected with the push rod 32, and the push rod body 31 can push the push rod 32 to move; the upper end of the push rod body 31 is connected with the push rod support 1 through a pin shaft 5, the push rod body 3 can be an electric push rod or an electro-hydraulic push rod, the lower end of the push rod 32 penetrates through the guide body 2 and is connected with the caster body 4, the push rod support 1 and the guide body 2 are both connected to a crawler machine 6 of the stair climbing vehicle, the push rod 32 can be of a telescopic structure, and the push rod 32 can push the caster body 4 to move along the length direction of the push rod support 1; when the stair climbing vehicle goes downstairs and inclines, the push rod 32 pushes the caster body 4 to contact the ground, and the caster supporting mechanism can support the stair climbing vehicle. The utility model provides a pair of supporting foot wheel mechanism, when climbing the stair car and downstairs, will convert into stair walking state in-process from ground walking state, stretch out push rod 32, make truckle body 4 contact ground, crawler machine 6 is the tilt state simultaneously, crawler machine 6 keeps away from push rod body 3's one end and ground contact, make push rod 32, crawler machine 6 and ground three form a triangle-shaped structure, and then make the stair car need not accompany the personnel's help, the patient oneself just can steadily change, the labour of accompany personnel has been reduced, when using the stair car and downstairs that exist among the solution prior art, need accompany personnel to lift and press the conversion that the crawler-type stair car carried out from the horizontal walking to the slope walking, realize the automatic technical problem that downstairs of stair car.

As an alternative embodiment, the supporting wheel mechanism is arranged perpendicular to the crawler machine 6, so that the push rod 32, the crawler machine 6 and the ground form a right triangle structure during the conversion of the stair climbing vehicle.

As an optional embodiment, the caster body 4 includes a caster bracket 41, a caster shaft 42 and a rolling caster 43, the rolling caster 43 is located in the caster bracket 41, the caster shaft 42 passes through the rolling caster 43 and the caster bracket 41, the caster shaft 42 is connected with the rolling caster 43 in a matching manner, the caster shaft 42 is connected with the caster bracket 41 in a bearing manner, the rolling caster 43 can be in contact with the ground and the rolling caster 43 can roll on the ground, the stair climbing vehicle can conveniently move forward, and the caster bracket 41 is in threaded connection with the push rod 32. The caster bracket 41 comprises a U-shaped frame 411 and a connecting column 412 which are of a U-shaped structure, the U-shaped frame 411 is fixedly connected with the connecting column 412, the rolling caster 43 is located in the U-shaped frame 411, the rolling caster 43 is connected with the U-shaped frame 411 through a caster shaft 42, the connecting column 412 can stretch into the push rod 32, and the connecting column 412 is in threaded connection with the push rod 32. When the push rod body 3 is in the retracted state, the distance between the rolling caster 43 and the ground is greater than the distance between the crawler machine 6 and the ground, so as to avoid the caster body 4 from influencing the movement of the crawler machine 6 or interfering with the movement of the front wheel lifting mechanism 7 and the rear wheel lifting mechanism 8.

As an alternative embodiment, the guide body 2 includes a guide seat 21 and a guide sleeve 22, the guide sleeve 22 is located in the guide seat 21, an outer wall of the guide sleeve 22 is fittingly connected with an inner wall of the guide seat 21, an outer wall of the guide seat 21 is connected with the track machine 6, the push rod 32 passes through the guide sleeve 22, the guide sleeve 22 may be a linear bearing or a cylindrical sleeve, the guide sleeve 22 is used for increasing a radial bearing capacity of the push rod 32, and also has a function of providing guidance for the push rod 32, and when the push rod body 3 is in a retracted state, an end surface of the guide sleeve 22 can contact with an end surface of the caster bracket 41.

As an alternative embodiment, the inner top wall of the push rod support 1 is provided with a connecting portion 11, the upper end of the push rod body 31 extends into the connecting portion 11, the pin 5 passes through the connecting portion 11 and the push rod body 31, and the pin 5 connects the connecting portion 11 and the push rod body 31.

The utility model provides a stair climbing vehicle, includes supporting foot wheel mechanism, and the number of supporting foot wheel mechanism on a stair climbing vehicle can be two, and two supporting foot wheel mechanisms distribute in 6 both sides of track machine.

As an alternative embodiment, the crawler machine comprises a front wheel lifting mechanism 7, a rear wheel lifting mechanism 8 and a power shaft 9, the crawler machine 6 is connected with the power shaft 9 through a supporting mechanism 10, the power shaft 9 is rotatably connected with the supporting mechanism 10, the front wheel lifting mechanism 7 is rotatably connected with the power shaft 9, the rear wheel lifting mechanism 8 is connected with the power shaft 9, the power shaft 9 is close to the rear wheel lifting mechanism 8, and the supporting wheel mechanism is close to the rear wheel lifting mechanism 8.

The stair climbing vehicle has a ground walking state and a stair walking state, when the stair climbing vehicle is in the ground walking state, the front wheel lifting mechanism 7 and the rear wheel lifting mechanism 8 are in a contraction state, the front wheel lifting mechanism 7 and the rear wheel lifting mechanism 8 are in contact walking with the ground, namely, a front wheel on the front wheel lifting mechanism 7 and a rear wheel on the rear wheel lifting mechanism 8 are in contact walking with the ground, and the crawler 6 is in a suspended state; when the stair climbing vehicle is in a stair walking state, the front wheel lifting mechanism 7 and the rear wheel lifting mechanism 8 are in an extending state, the front wheel lifting mechanism 7 and the rear wheel lifting mechanism 8 are in a suspending state, namely, a front wheel on the front wheel lifting mechanism 7 and a rear wheel on the rear wheel lifting mechanism 8 are in a suspending state, and the crawler 6 walks in contact with the stairs.

When the stair climbing vehicle is converted from a ground walking state to a stair walking state during going downstairs, the front wheel lifting mechanism 7 is firstly in an extending state, namely the front wheels are lifted, so that the crawler 6 is in an inclined state; then the supporting caster mechanism is extended out until the rolling caster 43 is contacted with the ground; then, the rear wheel lifting mechanism 8 is in an extending state, namely the rear wheel is lifted, and the crawler 6, the supporting foot wheel mechanism and the ground are in a triangular structure; at the moment, the stair climbing vehicle continues to move forwards, until the stair climbing vehicle enters the stairs, the supporting foot wheel mechanism gradually retracts along with the advancing of the crawler machine 6 on the stairs, and until the crawler machine completely enters the stairs, the supporting foot wheel mechanism retracts to the original state. In the process, the telescopic change of the front wheel lifting mechanism 7, the rear wheel lifting mechanism 8 and the supporting foot wheel mechanism is realized through the control device, and the process that the stair climbing vehicle is converted from the ground walking state to the stair walking state in the process of going downstairs can be realized as long as a patient presses the control device.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A supporting foot wheel mechanism is characterized by comprising a push rod bracket (1), a guide body (2), a push rod body (3) and a foot wheel body (4), wherein,

the push rod body (3) comprises a push rod body (31) and a push rod (32), the push rod body (31) is connected with the push rod (32), and the push rod body (31) can push the push rod (32) to move;

the upper end of the push rod body (31) is connected with the push rod support (1) through a pin shaft (5), the push rod (32) penetrates through the guide body (2) and is connected with the caster body (4), the push rod support (1) and the guide body (2) are both connected to a crawler machine (6) of the stair climbing vehicle, and the push rod (32) can push the caster body (4) to move along the length direction of the push rod support (1);

when the stair climbing vehicle inclines downstairs, the push rod (32) pushes the foot wheel body (4) to contact the ground, and the foot wheel mechanism can support the stair climbing vehicle.

2. A supporting foot mechanism according to claim 1, characterised in that it is arranged perpendicular to the crawler machine (6).

3. A supporting caster mechanism according to claim 1, wherein the caster body (4) comprises a caster bracket (41), a caster shaft (42) and a rolling caster (43), the rolling caster (43) is located in the caster bracket (41) and the caster shaft (42) passes through the rolling caster (43) and the caster bracket (41), the caster shaft (42) is in fit connection with the rolling caster (43), the caster shaft (42) is in bearing connection with the caster bracket (41), and the caster bracket (41) is in threaded connection with the push rod (32).

4. A supporting foot wheel mechanism according to claim 3, characterized in that the caster bracket (41) comprises a U-shaped frame (411) of U-shaped structure and a connecting column (412), the U-shaped frame (411) is fixedly connected with the connecting column (412), the rolling caster (43) is positioned in the U-shaped frame (411) and the rolling caster (43) and the U-shaped frame (411) are connected by the caster shaft (42), the connecting column (412) can extend into the push rod (32) and the connecting column (412) is in threaded connection with the push rod (32).

5. A supporting foot wheel mechanism according to claim 1, characterised in that the push rod body (3) is an electric push rod or an electro-hydraulic push rod.

6. The support foot wheel mechanism according to claim 1, characterized in that the guide body (2) comprises a guide seat (21) and a guide sleeve (22), the guide sleeve (22) is positioned in the guide seat (21), the outer wall of the guide sleeve (22) is in fit connection with the inner wall of the guide seat (21), the outer wall of the guide seat (21) is connected with the crawler machine (6), and the push rod (32) penetrates through the guide sleeve (22).

7. A supporting foot mechanism according to claim 1, characterized in that the inner top wall of the push rod support (1) is provided with a connecting part (11), the upper end of the push rod body (31) extends into the connecting part (11), the pin (5) passes through the connecting part (11) and the push rod body (31) and the pin (5) connects the connecting part (11) and the push rod body (31).

8. A stair climbing vehicle comprising the supporting foot mechanism of any one of claims 1 to 7.

9. The stair climbing vehicle according to claim 8, wherein the number of the supporting foot wheel mechanisms is two.

10. The stair climbing vehicle according to claim 8, comprising a front wheel lifting mechanism (7), a rear wheel lifting mechanism (8) and a power shaft (9), wherein the crawler machine (6) is connected with the power shaft (9) through a support mechanism (10), the power shaft (9) is rotatably connected with the support mechanism (10), the front wheel lifting mechanism (7) is rotatably connected with the power shaft (9), the rear wheel lifting mechanism (8) is connected with the power shaft (9), the power shaft (9) is close to the rear wheel lifting mechanism (8), and the support wheel mechanism is close to the rear wheel lifting mechanism (8).