CN216185573U

CN216185573U - Step climbing device

Info

Publication number: CN216185573U
Application number: CN202121082215.4U
Authority: CN
Inventors: 姚红军; 卢永军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-04-05
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses a step climbing device, which comprises a straight guide rail, a chain wheel with a bearing wheel, two anti-falling side plates and two guide rollers, wherein the chain wheel is provided with a bearing wheel; the front end and the rear end of the straight guide rail are fixed at the middle positions of the two anti-drop side plates, and the two guide rollers are positioned at the left end and the right end of the straight guide rail and are hinged on the two anti-drop side plates through shafts at the two ends; the chain wheel consists of a plurality of units with upper and lower surfaces being flush, one of the two adjacent units is fixed on the main shaft, the other one is hinged on the main shaft, the main shaft is hinged with a large bearing wheel or two small bearing wheels, the lower ends of the large or small bearing wheels extend out of the lower end surface of each unit, and the upper ends of the large or small bearing wheels are lower than the upper end surface of each unit; the chain wheel is wound and supported on the straight guide rail and the two guide rollers, the large or small bearing wheel is arranged on the straight guide rail, and the upper end surface and the lower end surface of the two anti-falling side plates are lower than the upper end surface of each unit of the chain wheel. The utility model has the advantages of continuous climbing, small gravity center fluctuation during walking, very stable motion, small fluctuation and bumping, small traveling resistance and suitability for all types of steps.

Description

Step climbing device

Technical Field

The utility model relates to a step climbing device.

Background

With the arrival of the electronic commerce era, the express delivery industry develops rapidly, but goods can be carried only through stairs in buildings without elevators, and large physical strength is consumed. The wheelchair is generally selected as a travel tool by people with inconvenient actions, the wheelchair can enable the people to be separated from dependence on other people and independently finish traveling, the wheelchair is designed to be similar to a vehicle and mainly used for flat ground, the wheelchair is difficult to travel on a road surface with obstacles, the existing residents generally live at high floors, some buildings are provided with elevators and can conveniently take the buildings without the elevators, the wheelchair is inconvenient to go upstairs and downstairs, people are required to back the wheelchair to the steps of the buildings or other places, the wheelchair is carried independently and wastes time and labor, people with inconvenient actions are convenient to dress and eat, and even people with one-storey residence is required. When the travelling luggage case climbs steps or stairs, people need to lift the luggage case, and the luggage case is very labor-consuming and even can be carried by some women with the same will. In a word, the goods carrying tools for climbing stairs, wheelchairs, traveling cases and the like are urgently needed to be provided with the step climbing device so as to smoothly climb the stairs or the steps and save manpower.

The climbing form that carries thing device, wheelchair or suitcase that has the climbing stair function at present mainly has following 3 forms: a planet wheel type stair climbing device, a crawler type stair climbing device, a leg foot type stair climbing device and the like. (1) When the object is carried to climb stairs, the small wheel group revolves around the central axis to complete the function of climbing stairs. But when the stair faces different heights and widths, the adaptability is weak, the sliding condition of the body of the carrier vehicle is easy to occur in the climbing process, particularly, the phenomenon of obvious vibration impact can be caused by intermittent motion of the device, and secondary injury and even irreparable loss can be caused to the carried objects, the people with inconvenient movement, particularly patients. (2) The crawler-type stair climbing device has a climbing mode which is more continuous than a planetary wheel type, the gravity center fluctuation is small during walking, the movement is stable, the terrain range is wide, and the crawler-type stair climbing device can be used on irregular stairs. However, in the existing crawler-type stair climbing device, the synchronous crawler is arranged outside a plurality of synchronous toothed belt wheels in a meshed manner and supported by the toothed belt wheels, and because intervals are arranged among the toothed belt wheels, when the synchronous crawler is contacted with stairs, the synchronous crawler always sinks between every two adjacent toothed belt wheels, so that the fluctuation and bump are obvious, the traveling resistance is large, and the requirements of objects or patients with high requirements on stability in the traveling process are still difficult to meet; and the track is easily broken during the pulling of the dimples. (3) The climbing principle of the leg-foot type stair climbing device is that according to the stair climbing process of a person, the stair climbing is realized by two sets of supporting structures which are continuously and alternately supported, and the safety is very high; but has the disadvantages of complex transmission process, extremely high control requirement, high cost and very complex operation, and is not suitable for common carrying devices, wheelchairs and luggage cases.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide the step climbing device which has the advantages of continuous climbing, small fluctuation of the center of gravity during walking, very stable motion, small fluctuation and bump and small traveling resistance and is suitable for all types of steps.

In order to achieve the above purpose, the technical solution of the present invention is: a step climbing device comprises a straight guide rail, a chain wheel with a bearing wheel, two anti-drop side plates and two guide rollers, wherein the height of the two anti-drop side plates is greater than that of the straight guide rail; the front end and the rear end of the straight guide rail are fixed at the middle positions of the two anti-drop side plates, and the two guide rollers are positioned at the left end and the right end of the straight guide rail and are hinged on the two anti-drop side plates through shafts at the two ends; the chain wheel consists of a plurality of units with upper and lower surfaces being flush, one of the two adjacent units is fixed on the main shaft, the other one is hinged on the main shaft, the main shaft is hinged with a large bearing wheel or two small bearing wheels, the lower ends of the large or small bearing wheels extend out of the lower end surface of each unit, and the upper ends of the large or small bearing wheels are lower than the upper end surface of each unit; the width of the chain wheel is smaller than that of the straight guide rail, the chain wheel is wound and supported on the straight guide rail and the two guide rollers, the large or small bearing wheel is arranged on the straight guide rail, and the upper end surface of each unit of the chain wheel positioned at the lower end of the straight guide rail extends out of the lower end surfaces of the two anti-falling side plates; the upper end surface of each unit and the two small bearing wheels are subjected to anti-skid treatment or made of anti-skid materials.

Further preferably, each unit of the chain wheel is in a convex shape, one wide end of the convex shape is provided with a U-shaped groove, and the left end and the right end of the convex shape are in up-down arc transition; the narrow end of one of the two adjacent units extends into the other U-shaped groove, and the narrow end is hinged to a main shaft of which the two ends are fixed on the groove wall of the U-shaped groove; the two small bearing wheels are respectively hinged on the main shaft and are respectively positioned between the wall of the U-shaped groove and the narrow end in the shape of the Chinese character 'tu'.

Further preferably, each unit of the sprocket comprises an i-shaped member and a cross-shaped member; the bulge of the cross-shaped piece is inserted into the groove of the I-shaped piece, and the bulge of the cross-shaped piece is hinged on the main shaft of which two ends are fixed on the groove wall of the I-shaped piece; the upper and lower circular arcs at the left and right ends of the I-shaped member and the cross-shaped member are in transition; the two small bearing wheels are respectively hinged on the main shaft and are respectively positioned between the groove wall of the groove of the I-shaped part and the bulge of the cross-shaped part.

Further preferably, one end of each unit of the chain wheel is in a large U shape, and the other end of each unit of the chain wheel is in a small U shape; the small U-shaped wall of one unit is penetrated in the large U-shaped wall of the other unit, and the two ends of the small U-shaped wall are hinged on a main shaft fixed on the large U-shaped wall; the big bearing wheel is hinged on the main shaft and is positioned in the small U-shaped groove.

Further preferably, each unit of the sprocket comprises another i-shaped member and a member having U-shaped grooves at both ends; the U-shaped groove wall of the component is inserted into the groove of the other I-shaped part, and the U-shaped groove wall is hinged on a main shaft of which two ends are fixed on the groove wall of the other I-shaped part; the other I-shaped part and the upper and lower circular arcs at the left and right ends of the component are in transition; the large bearing wheels are hinged on the main shaft and are respectively positioned in the U-shaped grooves of the components.

The wheel chain runs on the straight guide rail and the two guide rollers in a rolling manner, so that the straight guide rail and the two guide rollers are driven to move forwards together, and each large bearing wheel or each small bearing wheel of the wheel chain is supported on the straight guide rail and the two guide rollers, so that the friction between the wheel chain and the straight guide rail and between the wheel chain and the two guide rollers is reduced, and the service life of the wheel chain is prolonged; the upper end plane contact stair of each unit of wheel chain can not produce sunken under the support of straight guide rail and two deflector rolls, also not breaking away from straight guide rail and two deflector rolls under the protection of two anticreep curb plates, and it is very little that the fluctuation jolts, and the operation is smooth-going stable, and the wheel chain is difficult for the fracture, and the focus is undulant very little during the walking, and the climbing is continuous, and the resistance of marcing is less, and is suitable for all types of steps, has saved the manpower greatly. The utility model can be installed at the lower end of a goods carrying device, a wheel chair or a luggage case on stairs, can use wheels which can be lifted or lowered when walking on a plane, can raise the wheels when climbing stairs, can lower a step climbing device to drive the stairs to carry goods carrying device, the wheel chair or the luggage case and the like to climb the stairs, and can also connect two guide rollers or one guide roller with a driving device such as a motor, so that the utility model can actively run.

Drawings

FIG. 1 is a front view of a first embodiment of the present invention;

FIG. 2 is a top view of the first embodiment of the present invention;

FIG. 3 is a front view of a second embodiment of the present invention;

FIG. 4 is a top view of a second embodiment of the present invention

FIG. 5 is a front view of a third embodiment of the present invention;

FIG. 6 is a top view of a third embodiment of the present invention;

FIG. 7 is a front view of a fourth embodiment of the present invention;

fig. 8 is a top view of a fourth embodiment of the present invention.

Detailed Description

The utility model is further described with reference to the accompanying drawings in which:

as shown in fig. 1 and 2, the embodiment 1 includes a straight guide rail 7, a sprocket 10 with bearing wheels, two anti-drop side plates 2 with a height greater than that of the straight guide rail 7, and two guide rollers 8. The front end and the rear end of the straight guide rail 7 are fixed at the middle positions of the two anti-drop side plates 2, and the two guide rollers 8 are positioned at the left end and the right end of the straight guide rail 7 and hinged on the two anti-drop side plates 2 through shafts 9 at the two ends. The chain wheel 10 of the embodiment is composed of a plurality of units 51 with upper and lower surfaces being flush, each unit 51 is in a convex shape, one end of the wide side of the convex shape is provided with a U-shaped groove 4, and the upper and lower circular arcs of the left and right ends of the convex shape are in transition. The narrow end 6 of one of the two adjacent units 51 extends into the other U-shaped groove 4, and the narrow end 6 is hinged on the main shaft 3 with two ends fixed on the groove wall of the U-shaped groove 4. Two small bearing wheels 11 are respectively hinged on the main shaft 3 and are respectively positioned between the groove wall of the U-shaped groove 4 and the convex narrow end 6; the lower ends of the two small bearing wheels 11 extend out of the lower end surface of each unit 51, and the upper ends of the two small bearing wheels are lower than the upper end surface of each unit 51. The width of the chain wheel 10 is smaller than that of the straight guide rail 7, the chain wheel is wound and supported on the straight guide rail 7 and the two guide rollers 8, the two small bearing wheels 11 are arranged on the straight guide rail 7, and the upper end surface 511 of each unit 51 of the chain wheel positioned at the lower end of the straight guide rail 7 extends out of the lower end surfaces 21 of the two anti-drop side plates 2. The upper end surface 511 of each unit 51 and the two small load-bearing wheels 11 are treated to prevent slipping or are made of a slip-resistant material. The mountable of this embodiment can use the wheel that can promote or descend when walking on the plane at the lower extreme of stair transport cargo device, wheelchair or suitcase etc. when climbing stair, improves the wheel, climbs the step and climbs the climbing stair of device decline drive stair transport cargo device, wheelchair or suitcase etc. also can be with two deflector rolls or drive arrangement such as motor of one of them deflector roll connection, make this embodiment initiative operation.

As shown in fig. 3 and 4, the embodiment 2 includes a straight guide rail 7, a sprocket 10 with bearing wheels, two anti-drop side plates 2 with a height greater than that of the straight guide rail 7, and two guide rollers 8. The front end and the rear end of the straight guide rail 7 are fixed at the middle positions of the two anti-drop side plates 2, and the two guide rollers 8 are positioned at the left end and the right end of the straight guide rail 7 and hinged on the two anti-drop side plates 2 through shafts 9 at the two ends. The sprocket 10 of the present embodiment is comprised of a plurality of units 52 that are flush above and below; each unit 52 comprises an i-shaped element 521 and a cross-shaped element 522; the bulge 524 of the cross-shaped member 522 is inserted into the groove 523 of the I-shaped member 521, and the bulge 524 of the cross-shaped member is hinged on the main shaft 3 with two ends fixed on the wall of the groove 523 of the I-shaped member; the upper and lower circular arcs at the left and right ends of the I-shaped member 521 and the cross-shaped member 522 are in transition; the two small bearing wheels 11 are respectively hinged on the main shaft 3 and are respectively positioned between the groove wall of the groove 523 of the I-shaped part and the bulge 524 of the cross-shaped part. The lower ends of the two small bearing wheels 11 extend out of the lower end surface of each unit 52, and the upper ends are lower than the upper end surface of each unit 52. The width of the chain wheel 10 is smaller than that of the straight guide rail 7, the chain wheel is wound and supported on the straight guide rail 7 and the two guide rollers 8, the two small bearing wheels 11 are arranged on the straight guide rail 7, and the upper end surface 521 of each unit 52 of the chain wheel at the lower end of the straight guide rail 7 extends out of the lower end surfaces 21 of the two anti-drop side plates 2. The upper end surface 521 of each unit 52 and the two small bearing wheels 11 are treated to prevent slipping or made of a slipping-proof material. The present embodiment can be attached to the lower end of a stair cargo handling device, a wheelchair, a trunk, or the like, and used in the same manner as in embodiment 1.

As shown in fig. 5 and fig. 6, the embodiment 3 includes a straight guide rail 7, a sprocket 10 with bearing wheels, two anti-drop side plates 2 with a height greater than that of the straight guide rail 7, and two guide rollers 8. The front end and the rear end of the straight guide rail 7 are fixed at the middle positions of the two anti-drop side plates 2, and the two guide rollers 8 are positioned at the left end and the right end of the straight guide rail 7 and hinged on the two anti-drop side plates 2 through shafts 9 at the two ends. The sprocket 10 of the present embodiment is comprised of a plurality of units 53 that are flush above and below; one end of each unit 53 is a large U-shaped 531, and the other end is a small U-shaped 532; the small U-shaped 532 of one unit is penetrated in the large U-shaped 531 of the other unit, and the wall of the small U-shaped 532 is hinged on the main shaft 3 with two ends fixed on the wall of the large U-shaped 531; the big bearing wheel 12 is hinged on the main shaft 3 and is positioned in the small U-shaped 532 groove. The lower end of the large bearing wheel 12 extends out of the lower end surface of each unit 53, and the upper end is lower than the upper end surface of each unit 53. The width of the chain wheel 10 is smaller than that of the straight guide rail 7, the chain wheel is wound and supported on the straight guide rail 7 and the two guide rollers 8, the large bearing wheel 12 is arranged on the straight guide rail 7, and the upper end surface 531 of each unit 53 of the chain wheel at the lower end of the straight guide rail 7 extends out of the lower end surfaces 21 of the two anti-drop side plates 2. The upper end surface 531 of each unit 53 and the large load-bearing wheel 12 are treated to prevent slipping or are made of a slipping-preventing material. The present embodiment can be attached to the lower end of a stair cargo handling device, a wheelchair, a trunk, or the like, and used in the same manner as in embodiment 1.

As shown in fig. 7 and fig. 8, the embodiment 4 includes a straight guide rail 7, a sprocket 10 with bearing wheels, two anti-drop side plates 2 with a height greater than that of the straight guide rail 7, and two guide rollers 8. The front end and the rear end of the straight guide rail 7 are fixed at the middle positions of the two anti-drop side plates 2, and the two guide rollers 8 are positioned at the left end and the right end of the straight guide rail 7 and hinged on the two anti-drop side plates 2 through shafts 9 at the two ends. The sprocket 10 of the present embodiment is comprised of a plurality of units 54 that are flush above and below; each unit 54 includes another i-shaped member 541 and a member 542 having U-shaped grooves 544 at both ends; the wall of the U-shaped groove 544 of the component 542 is inserted into the groove 543 of the other i-shaped component 541, and the wall of the U-shaped groove 544 is hinged on the spindle 3 whose two ends are fixed on the wall of the groove 543 of the other i-shaped component 541; the upper and lower circular arcs at the left and right ends of the other I-shaped component 541 and the component 542 are in transition; the large wheels 12 are hinged to the main shaft 3 and are located in respective U-shaped slots 544 of the members 542. The lower end of the large bearing wheel 12 protrudes out of the lower end surface of each unit 54, and the upper end is lower than the upper end surface of each unit 54. The width of the chain wheel 10 is smaller than that of the straight guide rail 7, the chain wheel is wound and supported on the straight guide rail 7 and the two guide rollers 8, the large bearing wheel 12 is arranged on the straight guide rail 7, and the upper end surface 541 of each unit 54 of the chain wheel at the lower end of the straight guide rail 7 extends out of the lower end surfaces 21 of the two anti-drop side plates 2. The upper end surface 541 of each unit 54 and the large load-bearing wheel 12 are treated to prevent slipping or are made of a slipping-preventing material. The present embodiment can be attached to the lower end of a stair cargo handling device, a wheelchair, a trunk, or the like, and used in the same manner as in embodiment 1.

There are, of course, many other embodiments of the utility model and modifications and variations of this invention that will be obvious to those skilled in the art may be made without departing from the spirit and scope of the utility model, but it is intended to cover all such modifications and variations as fall within the true spirit and scope of the utility model.

Claims

1. The utility model provides a step climbing device which characterized in that: the anti-drop device comprises a straight guide rail, a chain wheel with a bearing wheel, two anti-drop side plates with the height larger than that of the straight guide rail and two guide rollers; the front end and the rear end of the straight guide rail are fixed at the middle positions of the two anti-drop side plates, and the two guide rollers are positioned at the left end and the right end of the straight guide rail and are hinged on the two anti-drop side plates through shafts at the two ends; the chain wheel consists of a plurality of units with upper and lower surfaces being flush, one of the two adjacent units is fixed on the main shaft, the other one is hinged on the main shaft, the main shaft is hinged with a large bearing wheel or two small bearing wheels, the lower ends of the large or small bearing wheels extend out of the lower end surface of each unit, and the upper ends of the large or small bearing wheels are lower than the upper end surface of each unit; the width of the chain wheel is smaller than that of the straight guide rail, the chain wheel is wound and supported on the straight guide rail and the two guide rollers, the large or small bearing wheel is arranged on the straight guide rail, and the upper end surface of each unit of the chain wheel positioned at the lower end of the straight guide rail extends out of the lower end surfaces of the two anti-falling side plates; the upper end surface of each unit and the two small bearing wheels are subjected to anti-skid treatment or made of anti-skid materials.

2. The step climbing device of claim 1, wherein: each unit of the chain wheel is in a convex shape, one end of the wide part of the convex shape is provided with a U-shaped groove, and the upper part and the lower part of the left end and the right end of the convex shape are in arc transition; the narrow end of one of the two adjacent units extends into the other U-shaped groove, and the narrow end is hinged to a main shaft of which the two ends are fixed on the groove wall of the U-shaped groove; the two small bearing wheels are respectively hinged on the main shaft and are respectively positioned between the wall of the U-shaped groove and the narrow end in the shape of the Chinese character 'tu'.

3. The step climbing device of claim 1, wherein: each unit of the chain wheel comprises an I-shaped part and a cross-shaped part; the bulge of the cross-shaped piece is inserted into the groove of the I-shaped piece, and the bulge of the cross-shaped piece is hinged on the main shaft of which two ends are fixed on the groove wall of the I-shaped piece; the upper and lower circular arcs at the left and right ends of the I-shaped member and the cross-shaped member are in transition; the two small bearing wheels are respectively hinged on the main shaft and are respectively positioned between the groove wall of the groove of the I-shaped part and the bulge of the cross-shaped part.

4. The step climbing device of claim 1, wherein: one end of each unit of the chain wheel is in a large U shape, and the other end of each unit of the chain wheel is in a small U shape; the small U-shaped wall of one unit is penetrated in the large U-shaped wall of the other unit, and the two ends of the small U-shaped wall are hinged on a main shaft fixed on the large U-shaped wall; the big bearing wheel is hinged on the main shaft and is positioned in the small U-shaped groove.

5. The step climbing device of claim 1, wherein: each unit of the chain wheel comprises another I-shaped part and a component with U-shaped grooves at two ends; the U-shaped groove wall of the component is inserted into the groove of the other I-shaped part, and the U-shaped groove wall is hinged on a main shaft of which two ends are fixed on the groove wall of the other I-shaped part; the other I-shaped part and the upper and lower circular arcs at the left and right ends of the component are in transition; the large bearing wheels are hinged on the main shaft and are respectively positioned in the U-shaped grooves of the components.