CN210101662U - Stair climbing transportation device - Google Patents
Stair climbing transportation device Download PDFInfo
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- CN210101662U CN210101662U CN201920533858.2U CN201920533858U CN210101662U CN 210101662 U CN210101662 U CN 210101662U CN 201920533858 U CN201920533858 U CN 201920533858U CN 210101662 U CN210101662 U CN 210101662U
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Abstract
The utility model discloses a stair-climbing transportation device, including frame, bracket and wheel, the lower part of bracket and frame intersect perpendicularly and fixed connection, be equipped with the horizontal pole in the bottom of frame, the horizontal pole extend to the both sides of frame and with the bottom fixed connection of frame, the both ends of horizontal pole be equipped with the wheel, the periphery of wheel be equipped with a plurality of openings. The wheel comprises an outer wheel and an inner wheel which are fixedly connected, a positioning block and a one-way convex block are arranged in the inner wheel, an insert block is arranged on the cross rod and matched with the one-way convex block to limit the one-way rotation of the wheel. This is novel can obviously alleviate when heavy burden upstairs, and the vibrations of wheel pair stair surface, and is equipped with one-way pivoted wheel control assembly, makes the heavy burden climb the building safer, more laborsaving.
Description
Technical Field
The utility model relates to a transportation trailer technical field, concretely relates to stair climbing conveyer.
Background
People carry heavy objects to go upstairs by hands, which is hard to climb stairs with heavy objects, especially for workers who work upstairs for a long time or older.
The trailer that the stair of using among the prior art was used has 3 wheels, and the angle between the wheel is 120 degrees, though can put the heavy object on the trailer and drag upstairs, nevertheless because the angle between the wheel is very big, so very big to the vibrations of stair, sound is very loud, relatively disturbs the people, and this trailer does not have one-way braking's function in addition, in case take off one's hand, rolls off stair together with the heavy object very easily, has certain safety risk.
In light of the deficiencies of the prior art, there is a need for a stair climbing transportation device that can be braked unidirectionally with low noise.
Disclosure of Invention
For overcoming the defects of the prior art, the utility model discloses a stair climbing transportation device.
In order to realize the purpose, the novel technical scheme is as follows:
the utility model provides a stair-climbing transportation device, includes frame 1, bracket 7 and wheel, bracket 7 intersect perpendicularly and fixed connection with the lower part of frame 1, be equipped with horizontal pole 6 in the bottom of frame 1, horizontal pole 6 extend to the both sides of frame 1 and with the bottom fixed connection of frame 1, the both ends of horizontal pole 6 be equipped with the wheel, the periphery of wheel be equipped with a plurality of openings.
Preferably, the wheel comprises an outer wheel 2 positioned at the end part of the cross bar 6 and an inner wheel 3 adjacent to the inner side surface of the outer wheel 2, the outer side surface of the inner wheel 3 is fixedly connected with the inner side surface of the outer wheel 2, the diameter of the outer wheel 2 is larger than that of the inner wheel 3, and a plurality of gaps 2-1 are arranged on the periphery of the outer wheel 2.
Preferably, the surface of the cross rod 6 facing the top of the frame 1 is provided with an insert 5, the insert 5 is connected with the cross rod 6 in a sliding manner along the axial direction of the cross rod 6, the inner wheel 3 is internally provided with an annular groove 3-1 which surrounds the axial line of the cross rod 6 and takes the peripheral surface of the cross rod 6 as a groove wall, a positioning block 3-2 and a one-way lug 3-3 are arranged in the annular groove 3-1 and on the groove wall opposite to the peripheral surface of the cross rod 6, the positioning block 3-2 is fixedly connected with the groove wall, one end of the one-way lug 3-3 is hinged with the groove wall, the positioning block 3-2 is adjacent to the one-way lug 3-3, the one-way lug 3-3 can rotate around a hinge shaft between the groove wall adjacent to the one-way lug and the positioning block 3-2 along the direction vertical to the axial line of the cross, the length of the one-way bump 3-3 is larger than that of the positioning block 3-2, an inclined plane is arranged at the end part, far away from the hinged shaft, of the one-way bump 3-3, an inclined plane is also arranged on one side of the inserting block 5, the inclined plane of the inserting block 5 is matched with the inclined plane of the one-way bump 3-3, the inserting block 5 is inserted into the annular groove 3-1, when the device advances towards the dragging direction, the inclined plane of the inserting block 5 pushes the inclined plane of the one-way bump 3-3, the one-way bump 3-3 rotates around the hinged shaft, the one-way bump 3-3 slides from the top of the inserting block 5, and when the device advances towards the direction opposite to the dragging direction, the inserting block 5 pushes the one-way bump 3-3 to rotate towards the positioning block 3-2, is limited by the positioning block 3-2, and the wheels stop.
Preferably, the inserts 5 have 2 inserts, the folding connecting rods 4 are arranged between the inserts 5, when the folding connecting rods 4 are completely unfolded, the 2 inserts 5 are respectively inserted into the annular grooves 3-1 of the inner wheels 3 adjacent to the inserts 5, and when the folding connecting rods 4 are gradually folded, the inserts 5 are respectively separated from the annular grooves 3-1.
Preferably, a dovetail block 9 is fixedly arranged on the bottom end surface of the inserting block 5, a dovetail groove 8 is arranged on the rod wall of the cross rod 6, and the dovetail block 9 and the dovetail groove 8 are matched with each other.
Preferably, the outer periphery of the outer wheel 2 is made of rubber.
Preferably, the diameter of the outer wheel 2 is 22-30 cm.
Preferably, a support frame is arranged at the lower part of the bracket 7, and the support frame is vertical to and fixedly connected with the lower surface of the bracket 7.
Preferably, the frame 1 and the bracket 7 are of metal construction.
Preferably, a plurality of annular fixing rings are arranged above the bracket 7, and the annular fixing rings surround a space for accommodating articles.
Advantageous effects
The utility model relates to a climb building conveyer has following beneficial effect:
compared with the traditional stair-climbing trailer in the prior art, the novel stair-climbing trailer avoids huge vibration of large-angle rotation between the wheels in the prior art to the stairs, simplifies 3 wheels into 1 wheel, and is more portable. When going upstairs, the sound is light, the people can not be disturbed, and the preferred scheme is provided with the unidirectional braking structure, so that people can have a rest easily when dragging heavy objects to go upstairs, and people do not need to worry about that the wheels fall down stairs.
Drawings
FIG. 1: is a back schematic view of a stair climbing transportation device;
FIG. 2: is a schematic side view of a stair climbing transportation device;
FIG. 3: is a top view of the stair climbing transportation device;
FIG. 4: the matching relation graph of the insert block and the cross bar is shown;
FIG. 5: the inner wheel is in a one-way braking structure schematic view;
1: a vehicle frame, 2: outer wheel, 3: inner wheel, 4: folding connecting rod, 5: insert block, 6: cross bar, 7: bracket, 8: the dovetail groove comprises 9 parts of a dovetail block, 2-1 parts of a notch, 3-1 parts of an annular groove, 3-2 parts of a positioning block, 3-3 parts of a one-way bump and 3-4 parts of an angle A.
Detailed Description
The following description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention.
Example 1:
a stair climbing transportation device comprises a frame 1, a bracket 7 and wheels, wherein the bracket 7 is vertically intersected with the lower part of the frame 1 and fixedly connected with the lower part of the frame 1, a cross rod 6 is arranged at the bottom end of the frame 1, the cross rod 6 extends towards two sides of the frame 1 and is fixedly connected with the bottom end of the frame 1, the wheels are arranged at two ends of the cross rod 6, and a plurality of gaps are formed in the peripheries of the wheels;
the wheel comprises an outer wheel 2 positioned at the end part of a cross bar 6 and an inner wheel 3 adjacent to the inner side surface of the outer wheel 2, the outer side surface of the inner wheel 3 is fixedly connected with the inner side surface of the outer wheel 2, the diameter of the outer wheel 2 is larger than that of the inner wheel 3, and a plurality of gaps 2-1 are arranged on the periphery of the outer wheel 2;
the surface of the cross rod 6 facing the direction of the frame 1 is provided with an insert 5, the insert 5 is connected with the cross rod 6 in a sliding way along the axial direction of the cross rod 6, the inner wheel 3 is internally provided with an annular groove 3-1 which surrounds the axial line of the cross rod 6 and takes the peripheral surface of the cross rod 6 as a groove wall, a positioning block 3-2 and a one-way lug 3-3 are arranged in the annular groove 3-1 and on the groove wall opposite to the peripheral surface of the cross rod 6, the positioning block 3-2 is fixedly connected with the groove wall, one end of the one-way lug 3-3 is hinged with the groove wall, the positioning block 3-2 is adjacent to the one-way lug 3-3, the one-way lug 3-3 can rotate around a hinge shaft between the groove wall adjacent to the one-way lug 3-3 and the positioning block 3-2 along the direction vertical to the axial, the length of the one-way bump 3-3 is greater than that of the positioning block 3-2, an inclined plane is arranged at the end part, far away from the hinged shaft, of the one-way bump 3-3, an inclined plane is also arranged on one side of the inserting block 5, the inclined plane of the inserting block 5 is matched with the inclined plane of the one-way bump 3-3, the inserting block 5 is inserted into the annular groove 3-1, when the device advances towards the dragging direction, the inclined plane of the inserting block 5 pushes the inclined plane of the one-way bump 3-3, the one-way bump 3-3 rotates around the hinged shaft, the one-way bump 3-3 slides from the top of the inserting block 5, and when the device advances towards the direction opposite to the dragging direction, the inserting block 5 pushes the one-way bump 3-3 to rotate towards the positioning block 3-2, is limited by the positioning block 3-2, and the wheel stops;
the number of the inserting blocks 5 is 2, the folding connecting rods 4 are arranged between the inserting blocks 5, when the folding connecting rods 4 are completely unfolded, the 2 inserting blocks 5 are respectively inserted into the annular grooves 3-1 of the inner wheels 3 adjacent to the inserting blocks 5, and when the folding connecting rods 4 are gradually folded, the inserting blocks 5 are respectively separated from the annular grooves 3-1;
a dovetail block 9 is fixedly arranged on the surface of the bottom end of the inserting block 5, a dovetail groove 8 is arranged on the rod wall of the cross rod 6, and the dovetail block 9 and the dovetail groove 8 are matched with each other;
the periphery of the outer wheel 2 is made of rubber;
the diameter of the outer wheel 2 is 22-30 cm;
the lower part of the bracket 7 is provided with a support frame which is vertical to and fixedly connected with the lower surface of the bracket 7;
the frame 1 and the bracket 7 are of metal structures;
a plurality of annular fixing rings are arranged above the bracket 7, and the annular fixing rings surround a space for accommodating articles.
As shown in figure 1, a plurality of openings are arranged on the periphery of the wheel, when climbing stairs, edges and corners of stair steps can be bitten by the openings, and the stairs can advance upstairs under the action of dragging.
In practical application, the outer periphery of the outer wheel 2 is made of rubber, and the rubber has good elasticity, so that the sound of collision with the steps of the stairs is further reduced, and the stairs can go upstairs quietly almost.
As shown in fig. 5, when a person pulls the novel device, the force-applying angle is shown as an angle a, and is an included angle range between the vertical upward direction and the horizontal forward direction, when the novel device advances in the pulling direction, the inclined surface of the insertion block 5 pushes the inclined surface of the one-way projection 3-3, the one-way projection 3-3 rotates around the hinge shaft, the one-way projection 3-3 slides through the top of the insertion block 5, and when the device advances in the direction opposite to the pulling direction, the insertion block 5 pushes the one-way projection 3-3 to rotate in the direction of the positioning block 3-2, is limited by the positioning block 3-2, and stops the rotation of the wheel. Because the periphery of the wheel is provided with a plurality of gaps, the friction force on the stair steps is very large, and when a rest is needed, the wheel can be naturally stopped only by stopping dragging, and the wheel is not required to keep the pulling force on a heavy object when the rest is needed so as to prevent the heavy object from falling down.
Example 2:
a stair climbing transportation device comprises a frame 1, a bracket 7 and wheels, wherein the bracket 7 is vertically intersected with the lower part of the frame 1 and fixedly connected with the lower part of the frame 1, a cross rod 6 is arranged at the bottom end of the frame 1, the cross rod 6 extends towards two sides of the frame 1 and is fixedly connected with the bottom end of the frame 1, the wheels are arranged at two ends of the cross rod 6, and a plurality of gaps are formed in the peripheries of the wheels;
the wheel comprises an outer wheel 2 positioned at the end part of a cross bar 6 and an inner wheel 3 adjacent to the inner side surface of the outer wheel 2, the outer side surface of the inner wheel 3 is fixedly connected with the inner side surface of the outer wheel 2, the diameter of the outer wheel 2 is larger than that of the inner wheel 3, and a plurality of gaps 2-1 are arranged on the periphery of the outer wheel 2;
the surface of the cross rod 6 facing the direction of the frame 1 is provided with an insert 5, the insert 5 is connected with the cross rod 6 in a sliding way along the axial direction of the cross rod 6, the inner wheel 3 is internally provided with an annular groove 3-1 which surrounds the axial line of the cross rod 6 and takes the peripheral surface of the cross rod 6 as a groove wall, a positioning block 3-2 and a one-way lug 3-3 are arranged in the annular groove 3-1 and on the groove wall opposite to the peripheral surface of the cross rod 6, the positioning block 3-2 is fixedly connected with the groove wall, one end of the one-way lug 3-3 is hinged with the groove wall, the positioning block 3-2 is adjacent to the one-way lug 3-3, the one-way lug 3-3 can rotate around a hinge shaft between the groove wall adjacent to the one-way lug 3-3 and the positioning block 3-2 along the direction vertical to the axial, the length of the one-way bump 3-3 is greater than that of the positioning block 3-2, an inclined plane is arranged at the end part, far away from the hinged shaft, of the one-way bump 3-3, an inclined plane is also arranged on one side of the inserting block 5, the inclined plane of the inserting block 5 is matched with the inclined plane of the one-way bump 3-3, the inserting block 5 is inserted into the annular groove 3-1, when the device advances towards the dragging direction, the inclined plane of the inserting block 5 pushes the inclined plane of the one-way bump 3-3, the one-way bump 3-3 rotates around the hinged shaft, the one-way bump 3-3 slides from the top of the inserting block 5, and when the device advances towards the direction opposite to the dragging direction, the inserting block 5 pushes the one-way bump 3-3 to rotate towards the positioning block 3-2, is limited by the positioning block 3-2, and the wheel stops;
the number of the inserting blocks 5 is 2, the folding connecting rods 4 are arranged between the inserting blocks 5, when the folding connecting rods 4 are completely unfolded, the 2 inserting blocks 5 are respectively inserted into the annular grooves 3-1 of the inner wheels 3 adjacent to the inserting blocks 5, and when the folding connecting rods 4 are gradually folded, the inserting blocks 5 are respectively separated from the annular grooves 3-1;
a dovetail block 9 is fixedly arranged on the surface of the bottom end of the inserting block 5, a dovetail groove 8 is arranged on the rod wall of the cross rod 6, and the dovetail block 9 and the dovetail groove 8 are matched with each other;
the outer periphery of the outer wheel 2 is made of rubber.
When going upstairs, the folding connecting rod 4 is pressed flat, and the unidirectional rotation of the wheels can be realized. After going upstairs, the folding connecting rod is pulled up, and the bidirectional rotation of the wheels is realized.
Example 3:
a stair climbing transportation device comprises a frame 1, a bracket 7 and wheels, wherein the bracket 7 is vertically intersected with the lower part of the frame 1 and fixedly connected with the lower part of the frame 1, a cross rod 6 is arranged at the bottom end of the frame 1, the cross rod 6 extends towards two sides of the frame 1 and is fixedly connected with the bottom end of the frame 1, the wheels are arranged at two ends of the cross rod 6, and a plurality of gaps are formed in the peripheries of the wheels;
the wheel comprises an outer wheel 2 positioned at the end part of a cross bar 6 and an inner wheel 3 adjacent to the inner side surface of the outer wheel 2, the outer side surface of the inner wheel 3 is fixedly connected with the inner side surface of the outer wheel 2, the diameter of the outer wheel 2 is larger than that of the inner wheel 3, and a plurality of gaps 2-1 are arranged on the periphery of the outer wheel 2;
the surface of the cross rod 6 facing the direction of the frame 1 is provided with an insert 5, the insert 5 is connected with the cross rod 6 in a sliding way along the axial direction of the cross rod 6, the inner wheel 3 is internally provided with an annular groove 3-1 which surrounds the axial line of the cross rod 6 and takes the peripheral surface of the cross rod 6 as a groove wall, a positioning block 3-2 and a one-way lug 3-3 are arranged in the annular groove 3-1 and on the groove wall opposite to the peripheral surface of the cross rod 6, the positioning block 3-2 is fixedly connected with the groove wall, one end of the one-way lug 3-3 is hinged with the groove wall, the positioning block 3-2 is adjacent to the one-way lug 3-3, the one-way lug 3-3 can rotate around a hinge shaft between the groove wall adjacent to the one-way lug 3-3 and the positioning block 3-2 along the direction vertical to the axial, the length of the one-way bump 3-3 is greater than that of the positioning block 3-2, an inclined plane is arranged at the end part, far away from the hinged shaft, of the one-way bump 3-3, an inclined plane is also arranged on one side of the inserting block 5, the inclined plane of the inserting block 5 is matched with the inclined plane of the one-way bump 3-3, the inserting block 5 is inserted into the annular groove 3-1, when the device advances towards the dragging direction, the inclined plane of the inserting block 5 pushes the inclined plane of the one-way bump 3-3, the one-way bump 3-3 rotates around the hinged shaft, the one-way bump 3-3 slides from the top of the inserting block 5, and when the device advances towards the direction opposite to the dragging direction, the inserting block 5 pushes the one-way bump 3-3 to rotate towards the positioning block 3-2, is limited by the positioning block 3-2, and the wheel stops;
the number of the inserting blocks 5 is 2, the folding connecting rods 4 are arranged between the inserting blocks 5, when the folding connecting rods 4 are completely unfolded, the 2 inserting blocks 5 are respectively inserted into the annular grooves 3-1 of the inner wheels 3 adjacent to the inserting blocks 5, and when the folding connecting rods 4 are gradually folded, the inserting blocks 5 are respectively separated from the annular grooves 3-1;
a dovetail block 9 is fixedly arranged on the surface of the bottom end of the inserting block 5, a dovetail groove 8 is arranged on the rod wall of the cross rod 6, and the dovetail block 9 and the dovetail groove 8 are matched with each other;
the periphery of the outer wheel 2 is made of rubber;
the diameter of the outer wheel 2 is 22-30 cm.
Generally, the height of the step is between 15 and 22cm, so the diameter of the outer wheel 2 is 22 to 30cm, and the stair can be suitable for occasions of various stairs.
Example 4:
a stair climbing transportation device comprises a frame 1, a bracket 7 and wheels, wherein the bracket 7 is vertically intersected with the lower part of the frame 1 and fixedly connected with the lower part of the frame 1, a cross rod 6 is arranged at the bottom end of the frame 1, the cross rod 6 extends towards two sides of the frame 1 and is fixedly connected with the bottom end of the frame 1, the wheels are arranged at two ends of the cross rod 6, and a plurality of gaps are formed in the peripheries of the wheels;
the wheel comprises an outer wheel 2 positioned at the end part of a cross bar 6 and an inner wheel 3 adjacent to the inner side surface of the outer wheel 2, the outer side surface of the inner wheel 3 is fixedly connected with the inner side surface of the outer wheel 2, the diameter of the outer wheel 2 is larger than that of the inner wheel 3, and a plurality of gaps 2-1 are arranged on the periphery of the outer wheel 2;
the surface of the cross rod 6 facing the direction of the frame 1 is provided with an insert 5, the insert 5 is connected with the cross rod 6 in a sliding way along the axial direction of the cross rod 6, the inner wheel 3 is internally provided with an annular groove 3-1 which surrounds the axial line of the cross rod 6 and takes the peripheral surface of the cross rod 6 as a groove wall, a positioning block 3-2 and a one-way lug 3-3 are arranged in the annular groove 3-1 and on the groove wall opposite to the peripheral surface of the cross rod 6, the positioning block 3-2 is fixedly connected with the groove wall, one end of the one-way lug 3-3 is hinged with the groove wall, the positioning block 3-2 is adjacent to the one-way lug 3-3, the one-way lug 3-3 can rotate around a hinge shaft between the groove wall adjacent to the one-way lug 3-3 and the positioning block 3-2 along the direction vertical to the axial, the length of the one-way bump 3-3 is greater than that of the positioning block 3-2, an inclined plane is arranged at the end part, far away from the hinged shaft, of the one-way bump 3-3, an inclined plane is also arranged on one side of the inserting block 5, the inclined plane of the inserting block 5 is matched with the inclined plane of the one-way bump 3-3, the inserting block 5 is inserted into the annular groove 3-1, when the device advances towards the dragging direction, the inclined plane of the inserting block 5 pushes the inclined plane of the one-way bump 3-3, the one-way bump 3-3 rotates around the hinged shaft, the one-way bump 3-3 slides from the top of the inserting block 5, and when the device advances towards the direction opposite to the dragging direction, the inserting block 5 pushes the one-way bump 3-3 to rotate towards the positioning block 3-2, is limited by the positioning block 3-2, and the wheel stops;
the number of the inserting blocks 5 is 2, the folding connecting rods 4 are arranged between the inserting blocks 5, when the folding connecting rods 4 are completely unfolded, the 2 inserting blocks 5 are respectively inserted into the annular grooves 3-1 of the inner wheels 3 adjacent to the inserting blocks 5, and when the folding connecting rods 4 are gradually folded, the inserting blocks 5 are respectively separated from the annular grooves 3-1;
a dovetail block 9 is fixedly arranged on the surface of the bottom end of the inserting block 5, a dovetail groove 8 is arranged on the rod wall of the cross rod 6, and the dovetail block 9 and the dovetail groove 8 are matched with each other;
the periphery of the outer wheel 2 is made of rubber;
the diameter of the outer wheel 2 is 22-30 cm;
the lower part of the bracket 7 is provided with a support frame which is vertical to and fixedly connected with the lower surface of the bracket 7;
the frame 1 and the bracket 7 are of metal construction.
Claims (10)
1. A stair climbing transportation device, characterized by: including frame (1), bracket (7) and wheel, bracket (7) intersect perpendicularly and fixed connection with the lower part of frame (1), be equipped with horizontal pole (6) in the bottom of frame (1), horizontal pole (6) extend to the both sides of frame (1) and with the bottom fixed connection of frame (1), the both ends of horizontal pole (6) be equipped with the wheel, the periphery of wheel be equipped with a plurality of openings.
2. The stair climbing transportation device according to claim 1, wherein: the wheel comprises an outer wheel (2) positioned at the end part of the cross rod (6) and an inner wheel (3) adjacent to the inner side surface of the outer wheel (2), the outer side surface of the inner wheel (3) is fixedly connected with the inner side surface of the outer wheel (2), the diameter of the outer wheel (2) is larger than that of the inner wheel (3), and a plurality of gaps (2-1) are formed in the periphery of the outer wheel (2).
3. The stair climbing transportation device according to claim 2, wherein: the bicycle frame is characterized in that an insert (5) is arranged on the surface of the cross rod (6) facing the direction of the top of the bicycle frame (1), the insert (5) is in sliding connection with the cross rod (6) along the direction of the axis of the cross rod (6), an annular groove (3-1) which surrounds the axis of the cross rod (6) and takes the peripheral surface of the cross rod (6) as a groove wall is arranged in the inner wheel (3), a positioning block (3-2) and a one-way bump (3-3) are arranged in the annular groove (3-1) and on the groove wall opposite to the peripheral surface of the cross rod (6), the positioning block (3-2) is fixedly connected with the groove wall, one end of the one-way bump (3-3) is hinged with the groove wall, the positioning block (3-2) is adjacent to the one-way bump (3-3), and the one-way bump (3-3) can wind around a hinge shaft along the direction vertical to the axis of, The device rotates between a groove wall adjacent to the device and a positioning block (3-2), the length of a one-way lug (3-3) is larger than that of the positioning block (3-2), an inclined surface is arranged at the end part, far away from a hinge shaft, of the one-way lug (3-3), an inclined surface is also arranged on one side of an inserting block (5), the inclined surface of the inserting block (5) is matched with the inclined surface of the one-way lug (3-3), the inserting block (5) is inserted into an annular groove (3-1), when the device advances in the dragging direction, the inclined surface of the inserting block (5) pushes the inclined surface of the one-way lug (3-3), the one-way lug (3-3) rotates around the hinge shaft, the one-way lug (3-3) slides from the top of the inserting block (5), and when the device advances in the direction opposite to the dragging direction, the inserting block (5) pushes the one-way lug (3-3) to rotate towards the positioning block (3-2), And is limited by the positioning block (3-2) and the wheel stops rotating.
4. A stair climbing transportation device as claimed in claim 3 wherein: the number of the insertion blocks (5) is 2, the folding connecting rods (4) are arranged between the insertion blocks (5), when the folding connecting rods (4) are completely opened, the insertion blocks (5) are respectively inserted into the annular grooves (3-1) of the inner wheels (3) adjacent to the insertion blocks (5), and when the folding connecting rods (4) are gradually folded, the insertion blocks (5) are respectively separated from the annular grooves (3-1).
5. The stair climbing transportation device according to claim 4, wherein: the bottom surface of inserted block (5) on the fixed dovetail block (9) that is equipped with, the pole wall of horizontal pole (6) on be equipped with dovetail (8), dovetail block (9) and dovetail (8) mutually support.
6. The stair climbing transportation device according to claim 5, wherein: the outer periphery of the outer wheel (2) is made of rubber.
7. The stair climbing transportation device according to claim 6, wherein: the diameter of the outer wheel (2) is 22-30 cm.
8. The stair climbing transportation device according to claim 7, wherein: the lower part of the bracket (7) is provided with a support frame, and the support frame is vertical to the lower surface of the bracket (7) and is fixedly connected with the lower surface of the bracket.
9. The stair climbing transportation device according to claim 8, wherein: the frame (1) and the bracket (7) are of metal structures.
10. The stair climbing transportation device according to claim 8, wherein: a plurality of annular fixing rings are arranged above the bracket (7), and the annular fixing rings surround a space for accommodating articles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533858.2U CN210101662U (en) | 2019-04-15 | 2019-04-15 | Stair climbing transportation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533858.2U CN210101662U (en) | 2019-04-15 | 2019-04-15 | Stair climbing transportation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210101662U true CN210101662U (en) | 2020-02-21 |
Family
ID=69538180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920533858.2U Expired - Fee Related CN210101662U (en) | 2019-04-15 | 2019-04-15 | Stair climbing transportation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210101662U (en) |
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2019
- 2019-04-15 CN CN201920533858.2U patent/CN210101662U/en not_active Expired - Fee Related
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