CN211001505U - Flat ground and stair double-smooth-running cart - Google Patents
Flat ground and stair double-smooth-running cart Download PDFInfo
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- CN211001505U CN211001505U CN201920739335.3U CN201920739335U CN211001505U CN 211001505 U CN211001505 U CN 211001505U CN 201920739335 U CN201920739335 U CN 201920739335U CN 211001505 U CN211001505 U CN 211001505U
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- wheel
- steel pipe
- flat ground
- hollow steel
- base
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 230000009977 dual effect Effects 0.000 claims 5
- 244000309464 bull Species 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a flat ground and stair double-stable running cart, wherein a base is horizontally arranged, and two balance columns are arranged below the first end of the base; a bracket is vertically arranged and formed by a first hollow pipe and a second hollow pipe which are interconnected by a plurality of rods, the upper ends of the first hollow pipe and the second hollow pipe are opened, and the lower ends of the first hollow pipe and the second hollow pipe are rotatably connected with the second end of the base; two ends of the telescopic handle are respectively inserted into the upper end openings of the first hollow tube and the second hollow tube and are in telescopic connection with the bracket; the wheel mounting rack is arranged on the other side of the bracket opposite to the base; the wheels are respectively arranged at two ends of the horizontal shaft and rotate around the horizontal shaft; the conversion means is provided on the wheel and converts the wheel into a circular or vane shape according to the traveling of the cart on flat ground or stairs. The utility model can fully adapt to different working surfaces of flat ground and stairs; the accurate adjustment of the shape of the outline line of the wheel is realized by controlling the conversion device; the foldable base and the telescopic handle can save space.
Description
Technical Field
The utility model relates to a shallow field, especially a shallow that level land and stair are two steadily to go.
Background
The cart is popular as a common carrying tool because of its practicality and simplicity, but it only can be used for carrying people upstairs and downstairs, and sometimes it is too heavy to carry upstairs or too hard. In order to overcome the not enough of current shallow design shape and using-way, the utility model provides a shallow of two steady traveles of stair and level land mainly adapts to the working surface of stair and two kinds of differences on level land through changing the tire shape, makes shallow focus movement track roughly keep becoming a straight line, convenient to use.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: for solving the deficiencies of the prior art, the utility model provides a shallow that level land and stair are two steadily to go.
The technical scheme is as follows: in order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a flat ground and stair dual-smooth-running cart comprises:
the base is horizontally arranged, and two balance columns are arranged below the first end of the base;
the bracket is formed by a first hollow steel pipe and a second hollow steel pipe which are interconnected by a plurality of rods, the upper ends of the first hollow steel pipe and the second hollow steel pipe are open, the lower ends of the first hollow steel pipe and the second hollow steel pipe are fixed on a cross rod, and then the first hollow steel pipe and the second hollow steel pipe are rotatably connected with the upper part of the second end of the base;
the telescopic handle is a curved bar, and two ends of the telescopic handle are respectively inserted into the upper end openings of the first hollow steel pipe and the second hollow steel pipe and are in telescopic connection with the bracket;
the wheel mounting rack comprises two extension rods and a horizontal shaft arranged at the extension ends of the two extension rods, and the two extension rods are arranged at the other side of the support opposite to the base;
and two wheels are arranged at two ends of the horizontal shaft respectively and rotate around the horizontal shaft, and the wheels are converted into a round shape or a wheel blade shape according to requirements.
Optionally, the wheel comprises a wheel center, four wheel blades, four rotating shafts and a conversion device, wherein a wheel center large hole, four wheel center small holes and two sockets are formed in the wheel center, and the wheel center large hole is located in the center of the wheel center and is in rotating connection with a horizontal shaft of the wheel mounting frame; the small wheel center holes are uniformly distributed around the large wheel center hole and are rotationally connected with the rotating shaft; each wheel blade is fixedly provided with a rotating shaft and is sequentially connected with the wheel center and the conversion device through the rotating shaft; the wheel blades, the wheel centers and the conversion device are sequentially arranged in parallel, and the conversion device converts the wheels into a round shape or a wheel blade shape according to the fact that the cart runs on flat ground or stairs; when the shape of the wheel is adjusted, the wheel blade and the conversion device rotate along with the rotating shaft, and when the shape of the wheel is fixed, the conversion device is fixed on the socket on the wheel center.
Optionally, the conversion device comprises a circular bull gear, four pinions and a rotary handle, wherein the four pinions are uniformly distributed on the periphery of the outer side of the bull gear, are clamped with the bull gear, and rotate at the same linear speed; one end of the rotating shaft is fixedly connected with the wheel blade, the other end of the rotating shaft penetrates through the small hole in the wheel center to be fixedly connected with the small gear, and the small gear and the wheel blade rotate synchronously with the rotating shaft; the inner side of the big gear is provided with a rotating handle, and when the cart works, the rotating handle is inserted into the socket to fix the shape of the wheel blade; when the wheel form is converted, the rotating handle is pulled out, the rotating handle is inserted into the other socket after rotating for a proper angle, the connecting state of the rotating handle and the two sockets respectively corresponds to the wheel and is in a circular shape and a blade shape, and the corresponding outer contour line of the wheel is in a circular arc line and an Archimedes-like spiral line.
Optionally, the rotating handle is "L" type.
Optionally, the telescopic handle comprises a horizontal rod and vertical rods arranged at two ends of the horizontal rod, and the two vertical rods are respectively in telescopic connection with the first hollow tube and the second hollow tube.
Optionally, the middle area of the horizontal rod is provided with an anti-slip groove.
Optionally, the bracket is connected with the base through a hinge.
Optionally, the wheel is rotatably connected to the horizontal shaft by a bearing.
Has the advantages that: compared with the prior art, the utility model has simple structure and definite technology, and the difference between the cart and the traditional stair climbing cart is that when going upstairs, the center of the whole cart is concentrated on a large central shaft where four wheel blades are positioned, the motion track of the gravity center of the whole cart is approximately a straight line parallel to the inclined plane of the stairs, and the cart is more labor-saving; the whole cart has simple structure, low cost and certain practical value. Utility model can effectual improvement work efficiency, improve people's quality of life.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 is a perspective view of the vehicle body;
FIG. 4 is a front view of an Archimedes-like spiral;
FIG. 5 is a bottom perspective view of an Archimedes-like spiral;
FIG. 6 is a schematic view of an Archimedes-like spiral wheel construction;
FIG. 7 is a schematic view of the switching device;
fig. 8 is a front view of the circular wheel.
Detailed Description
For making clear the utility model discloses a utility model purpose, technical scheme, bright characteristics make its advantage more clear and definite, it is right to combine below figure and concrete embodiment the technical scheme of the utility model carry out the detailed description.
A flat ground and stair dual-smooth-running cart comprises a base, a support, a telescopic handle, a wheel mounting frame and wheels, wherein the base is horizontally arranged, and two balance columns are arranged below the first end of the base; the bracket is formed by a first hollow steel pipe and a second hollow steel pipe which are interconnected by a plurality of rods, the upper ends of the first hollow steel pipe and the second hollow steel pipe are open, the lower ends of the first hollow steel pipe and the second hollow steel pipe are fixed on a cross rod, and then the first hollow steel pipe and the second hollow steel pipe are rotatably connected with the upper part of the second end of the base; the telescopic handle is a curved bar, and two ends of the telescopic handle are respectively inserted into the upper end openings of the first hollow steel pipe and the second hollow steel pipe and are in telescopic connection with the bracket; the wheel mounting frame comprises two extension rods and a horizontal shaft arranged at the extension ends of the two extension rods, and the two extension rods are arranged at the other side of the support opposite to the base; the wheels are respectively arranged at two ends of the horizontal shaft and rotate around the horizontal shaft, and the wheels are converted into a round shape or a wheel blade shape according to requirements.
As shown in fig. 1 to 8, the utility model discloses a shallow of level land and two steady traveling of stair, including base 1, support 2, flexible handle 3, wheel mounting bracket 4 and wheel 5, flexible handle installs in the support top, and support and flexible handle constitute by hollow steel tube, and the wheel is installed at the support rear, and the wheel can be adjusted as required to be circular or wheel leaf shape to two kinds of working planes of adaptation plane and stair.
The base and the bracket are both formed by a 'field' steel pipe, and the upper end of the bracket steel pipe is opened; the base is horizontally arranged, the support is connected with the base through a hinge 6, and the placing state can be adjusted through the hinge; when the cart is used, the support is vertically placed, and when the cart is idle, the base is folded upwards together with the support, so that the space is saved; the base below is provided with the equalizing column 11, and when the base level was placed, the equalizing column contacted with ground together with circular wheel bottom, kept whole automobile body balanced.
The telescopic handle is a curved bar and comprises a horizontal bar and two vertical bars, the upper ends of the two vertical bars are respectively fixedly connected with the two ends of the horizontal bar, the radius of the horizontal bar is R1 which is the same as that of the upper part of the vertical bar, and the outer diameter of a section of cylinder with the lowest end of 1cm is slightly larger than that of the upper part of the vertical bar and is R2; a round baffle is arranged at an opening at the upper end of the support steel pipe, the outer diameter of the baffle is R2, and a round hole with the radius of R1 is dug in the center of the baffle, so that the telescopic handle can freely slide in the support steel pipe without sliding out. The middle part of the horizontal rod is provided with an anti-slip groove which is used for increasing the friction force. In addition, the lower ends of the two vertical rods of the curved rod are respectively inserted into the openings at the upper end of the support and are in telescopic connection with the support, the curved rod is contracted when the support is not used, space is saved, and the height can be adjusted as required when the support is used.
The wheel mounting bracket includes two extension rods 41 and sets up in the horizontal axis 42 of two extension rod extension ends, and two extension rods set up the opposite side of support relative with the base.
The wheel comprises a wheel center 51, four wheel blades 52, four rotating shafts 53 and a conversion device 54, the wheel center is disc-shaped, four wheel center small holes 511, a wheel center large hole 512 and two sockets 513 are arranged on the wheel center, the wheel center large hole is arranged in the wheel center, a horizontal shaft 42 of the wheel mounting frame is inserted into the wheel center large hole, and the wheel can rotate around the horizontal shaft; the small wheel center holes are uniformly distributed around the large wheel center hole and are rotationally connected with the rotating shaft; the rotating shaft is a cylinder, the outer diameter of the rotating shaft is R3 which is the same as the inner diameter of the small hole of the wheel center, the rotating shaft can rotate in the small hole of the wheel center after being inserted into the small hole of the wheel center, the lower end of the rotating shaft is fixedly connected with the wheel blade, then the rotating shaft penetrates through the small hole of the wheel center and is fixedly connected with the conversion device, and the conversion device and the wheel blade; the wheel blades, the wheel center and the conversion device are sequentially arranged in parallel, and the wheels are connected with the horizontal shaft through bearings and can rotate around the horizontal shaft.
The conversion device 54 comprises a large gear 541, four small gears 542 and a rotary handle 543, wherein the four small gears are uniformly distributed on the periphery of the outer side of the large gear, the small gear and the large gear are cylinders with the same height, the small gear is solid, the large gear is circular, the bottom surfaces of the large gear and the small gear are parallel to the bottom surface of a wheel center, the small gear and the outer cylindrical surface of the large gear are provided with teeth with the same size and are mutually clamped and rotate at the same linear velocity, the radius of a rotating shaft is the same as that of the small gear, after the upper end surface of the rotating shaft is fixedly connected with the lower surface of the small gear, the rotating shaft and a wheel blade realize synchronous rotation, the rotary handle is shaped like L, one end of the rotary handle is fixed on the inner side of the large gear, when the cart works, the other end of the rotary handle is inserted into a socket to fix the shape of the wheel blade, when the shape of the cart is converted, the rotary handle is pulled out and is inserted into.
When the cart works, the rotating handle is inserted into the socket, and the conversion device cannot rotate to fix the wheel blade; when the cart needs to travel on flat ground, the rotating handle is pulled out of the socket and rotated, the rotating handle is rotated clockwise, the large gear and the rotating handle synchronously rotate clockwise, the outside teeth of the small gear are engaged with the outside teeth of the large gear, the small gear rotates anticlockwise at the same linear velocity, so that the rotating shaft and the wheel blade fixedly connected with the small gear are driven to rotate around the small hole of the wheel core at the same angular velocity, the rotating handle is inserted into the socket after the rotating shaft and the wheel blade rotate to the limit, and the outline of the wheel blade is circular; when the stair runs, the rotating handle is pulled out of the socket and rotated, the rotating handle is rotated anticlockwise to the limit, the rotating handle is inserted into the socket, and the outer contour line of the wheel blade is in an Archimedes-like spiral line shape.
The utility model can adjust the shape of the wheel, and can fully adapt to different working surfaces of flat ground and stairs; the control conversion device realizes the accurate adjustment of the shape of the outer contour line of the wheel through the matching of the gear, the rotating handle and the wheel blade; folding base and telescopic handle can save space, the utility model discloses can effectual improvement work efficiency, improve people's quality of life.
Claims (8)
1. The utility model provides a shallow of level land and stair double steady traveling which characterized in that includes:
the base is horizontally arranged, and two balance columns are arranged below the first end of the base;
the bracket is formed by a first hollow steel pipe and a second hollow steel pipe which are interconnected by a plurality of rods, the upper ends of the first hollow steel pipe and the second hollow steel pipe are open, the lower ends of the first hollow steel pipe and the second hollow steel pipe are fixed on a cross rod, and then the first hollow steel pipe and the second hollow steel pipe are rotatably connected with the upper part of the second end of the base;
the telescopic handle is a curved bar, and two ends of the telescopic handle are respectively inserted into the upper end openings of the first hollow steel pipe and the second hollow steel pipe and are in telescopic connection with the bracket;
the wheel mounting rack comprises two extension rods and a horizontal shaft arranged at the extension ends of the two extension rods, and the two extension rods are arranged at the other side of the support opposite to the base;
and two wheels are arranged at two ends of the horizontal shaft respectively and rotate around the horizontal shaft, and the wheels are converted into a round shape or a wheel blade shape according to requirements.
2. The flat ground and stair dual-smooth-running cart according to claim 1, wherein the wheels comprise a wheel center, four wheel blades, four rotating shafts and a switching device, the wheel center is provided with a wheel center large hole, four wheel center small holes and two sockets, and the wheel center large hole is positioned in the center of the wheel center and is in rotating connection with a horizontal shaft of the wheel mounting frame; the small wheel center holes are uniformly distributed around the large wheel center hole and are rotationally connected with the rotating shaft; each wheel blade is fixedly provided with a rotating shaft and is sequentially connected with the wheel center and the conversion device through the rotating shaft; the wheel blades, the wheel centers and the conversion device are sequentially arranged in parallel, and the conversion device converts the wheels into a round shape or a wheel blade shape according to the fact that the cart runs on flat ground or stairs; when the shape of the wheel is adjusted, the wheel blade and the conversion device rotate along with the rotating shaft, and when the shape of the wheel is fixed, the conversion device is fixed on the socket on the wheel center.
3. The flat ground and stair dual-smooth driving cart according to claim 2, wherein the switching device comprises a circular gear wheel, four pinion gears and a rotating handle, the four pinion gears are uniformly distributed on the outer periphery of the gear wheel, are clamped with the gear wheel and rotate at the same linear speed; one end of the rotating shaft is fixedly connected with the wheel blade, the other end of the rotating shaft penetrates through the small hole in the wheel center to be fixedly connected with the small gear, and the small gear and the wheel blade rotate synchronously with the rotating shaft; the inner side of the big gear is provided with a rotating handle, and when the cart works, the rotating handle is inserted into the socket to fix the shape of the wheel blade; when the wheel form is converted, the rotating handle is pulled out, the rotating handle is inserted into the other socket after rotating for a proper angle, the connecting state of the rotating handle and the two sockets respectively corresponds to the wheel and is in a circular shape and a blade shape, and the corresponding outer contour line of the wheel is in a circular arc line and an Archimedes-like spiral line.
4. A flat ground and stair dual smooth ride cart as claimed in claim 3 wherein the swivel handle is "L" shaped.
5. The flat ground and stair dual smooth driving cart according to claim 1, wherein the telescopic handle comprises a horizontal rod and vertical rods arranged at two ends of the horizontal rod, and the two vertical rods are respectively connected with the first hollow tube and the second hollow tube in a telescopic way.
6. The flat ground and stair dual smooth driving cart according to claim 5, wherein the middle area of the horizontal bar is provided with anti-slip grooves.
7. The flat ground and stair dual smooth driving cart according to claim 1, wherein the support frame is connected with the base frame through a hinge.
8. The flat ground and stair dual flat traveling cart according to claim 1, wherein the wheels are rotatably connected to the horizontal shaft through bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739335.3U CN211001505U (en) | 2019-05-22 | 2019-05-22 | Flat ground and stair double-smooth-running cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739335.3U CN211001505U (en) | 2019-05-22 | 2019-05-22 | Flat ground and stair double-smooth-running cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211001505U true CN211001505U (en) | 2020-07-14 |
Family
ID=71496711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920739335.3U Expired - Fee Related CN211001505U (en) | 2019-05-22 | 2019-05-22 | Flat ground and stair double-smooth-running cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211001505U (en) |
-
2019
- 2019-05-22 CN CN201920739335.3U patent/CN211001505U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 |