CN210941913U - Stair climbing shopping cart - Google Patents
Stair climbing shopping cart Download PDFInfo
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- CN210941913U CN210941913U CN201921843406.0U CN201921843406U CN210941913U CN 210941913 U CN210941913 U CN 210941913U CN 201921843406 U CN201921843406 U CN 201921843406U CN 210941913 U CN210941913 U CN 210941913U
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- shopping cart
- rod
- rotating shaft
- double
- sliding
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Abstract
The utility model discloses a stair climbing shopping cart, which comprises a stair climbing device symmetrically arranged on the left side and the right side of a shopping cart body (1), wherein a double bracket (6) is composed of 6 rod piece hinges, the middle cross hinge point is a sliding pin shaft (5), one end of the sliding pin shaft (5) is embedded into a sliding groove (4) and can only slide up and down in the sliding groove (4), a supporting wheel (7) is arranged on a rotating shaft (17) at the bottom of the double bracket (6), and a stop device (8) is arranged on a bulge at the outer side of the lower end of a swinging rod (9) in the double bracket (6); the operating rod (12) is pressed up and down, the lever (11) drives the driving rod (3) to swing around the fixed pin shaft (2), the sliding pin shaft (5) on the double supports (6) slides up and down in the sliding groove (4), and the rotating shaft (17) at the bottommost hinge point drives the supporting wheel (7) to move up and down, so that the shopping cart can be conveniently lifted up or put down, and the function of climbing stairs is realized.
Description
Technical Field
The utility model relates to a device is used in family's daily life, especially relates to a climb stair shopping cart.
Background
In daily life, vegetable market buying, shopping, food buying and the like are often needed. However, in some multi-storey buildings and high-rise buildings in old communities, elevators are not arranged, the bought articles can be easily transported to the downstairs, and it is very difficult to climb stairs and transport the articles to the home. Especially, the old people who are old and have poor health are difficult to send even the articles with small weight to the higher floors, and if the old people buy grains, gas tanks of the tanks and the like, the old people can not conveniently put down for rest in the middle, and the old people can only carry on the stairs all the time, and are usually expected to make exclamations because the physical strength is too large. Therefore, a simple and convenient shopping cart capable of climbing stairs is urgently needed, and purchased articles can be easily and conveniently transported to upstairs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the difficulty in the background art, providing a simple structure, can easily swift transport upstairs with the article of purchasing, alleviate one kind of people's intensity of labour and climb stair shopping cart.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a climb stair shopping cart, as shown in fig. 1, including shopping cart body 1, fixed pin axle 2, drive lever 3, spout 4, sliding pin axle 5, double bracing frame 6, supporting wheel 7, detent 8, swinging arms 9, walking wheel 10, lever 11, control rod 12, push rod 13, pivot 17.
The bottom of the shopping cart body 1 is provided with four traveling wheels 10, the upper part of the rear side surface is provided with a push rod 13, and the left side surface and the right side surface are symmetrically provided with stair climbing devices;
the fixed pin shafts 2 are fixedly arranged on two sides of the shopping cart body 1, the distance from the rear side surface to the rear side surface is half of the width H of a stair step, sliding grooves 4 are machined in the shopping cart body 1 on the lower side of the fixed pin shafts 2, and the fixed pin shafts 2 are connected with double brackets 6;
the double-support 6 is composed of 6 rod piece hinges, the middle cross hinge point is a sliding pin shaft 5, one end of the sliding pin shaft 5 is embedded into the sliding groove 4 and can only slide up and down in the sliding groove 4, the hinge point at the bottommost part of the double-support 6 is a rotating shaft 17, and the rotating shaft 17 is provided with a supporting wheel 7.
The whole operating rod 12 is in a reversed U shape, two sides of the operating rod are made of hollow pipes, after the driving rod 3 in the double brackets 6 and the lever 11 are made into a whole, the lever 11 is inserted into the hollow pipe of the operating rod 12, the operating rod 12 is pulled back and forth, and the driving rod 3 can slide in the hollow pipe but cannot be pulled out; when the operating lever 12 is pressed up and down, the lever 11 drives the driving rod 3 to swing around the fixed pin shaft 2, the sliding pin shaft 5 on the double-bracket 6 slides up and down in the chute 4, and the rotating shaft 17 at the bottommost hinge point drives the supporting wheel 7 to move up and down.
The supporting wheel 7 is as shown in fig. 2, and comprises a one-way bearing 16 arranged on a rotating shaft 17, wherein the inner ring of the one-way bearing 16 is integrated with the rotating shaft 17, and the outer ring is fixedly connected with a rubber ring 15.
The stop device 8 is installed on the outer protrusion of the lower end of the swing rod 9 in the double-support 6, as shown in fig. 2 and fig. 3, a positioning pin hole is formed on the protrusion and the rotating shaft 17, the positioning pin 14 is inserted into the positioning pin hole, the position of the positioning pin 14 is determined by the downstairs position 19 and the upstairs position 20 on the positioning cover 18, when the handle of the positioning pin 14 is positioned in the groove of the upstairs position 20, the rotating shaft 17 cannot rotate, but the supporting wheel 7 can rotate in one direction, and when the handle of the positioning pin 14 is positioned in the groove of the downstairs position 19, the rotating shaft 17 can rotate in the swing rod 9, and the supporting wheel 7 can rotate in two directions.
By the foregoing technical scheme, the utility model provides a can see out, a climb stair shopping cart's beneficial effect be (1) can directly walk up and down stairs through control rod 12, push rod 13 pulling shopping cart, very big reduction people's intensity of labour. (2) By utilizing the stop device 8, the one-way rotation of the supporting wheel 7 is realized when going upstairs, the shopping cart is prevented from sliding off, and the safety and the reliability are realized. (3) Simple structure, low manufacturing cost and convenient use.
Drawings
Fig. 1 is a schematic view of the structure of the shopping cart for climbing stairs of the present invention.
Fig. 2 is a schematic view of the supporting wheel of the shopping cart for climbing stairs of the present invention.
Fig. 3 is the appearance schematic diagram of the positioning cover of the stair climbing shopping cart of the utility model.
In the figure: 1. the shopping cart comprises a shopping cart body, 2, a fixed pin shaft, 3, a driving rod, 4, a sliding chute, 5, a sliding pin shaft, 6, a double-support, 7, a supporting wheel, 8, a stop device, 9, a swinging rod, 10, a traveling wheel, 11, a lever, 12, an operating rod, 13, a push rod, 14, a positioning pin, 15, a rubber ring, 16, a one-way bearing, 17, a rotating shaft, 18, a positioning cover, 19, a downstairs position, 20 and an upstairs position.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The utility model discloses a climb stair shopping cart, as shown in figure 1, figure 2, figure 3, including shopping cart body 1, fixed pin axle 2, drive lever 3, spout 4, sliding pin axle 5, double bracing frame 6, supporting wheel 7, detent 8, swinging arms 9, walking wheel 10, lever 11, control rod 12, push rod 13, pivot 17.
The shopping cart body 1 has the same structure as a common shopping cart, the bottom of the shopping cart body is provided with four traveling wheels 10, the upper part of the rear side surface is provided with a push rod 13, and the left side surface and the right side surface are symmetrically provided with stair climbing devices, namely the shopping cart has a bilaterally symmetrical structure;
the fixed pin shafts 2 are fixedly arranged on two sides of the shopping cart body 1, the distance between the fixed pin shafts 2 and the rear side surface is half of the width H of a step of a stair, namely after the shopping cart is supported, the supporting wheels 7 rotate to walk for a certain distance and then send the walking wheels 10 to the upper step surface, sliding grooves 4 are machined in the shopping cart body 1 on the lower side of the fixed pin shafts 2, and double brackets 6 are connected to the fixed pin shafts 2;
the double-support 6 is formed by rod piece hinges, the middle crossed hinge point is a sliding pin shaft 5, one end of the sliding pin shaft 5 is embedded into the sliding groove 4 and can only slide up and down in the sliding groove 4, the hinge point at the bottommost part of the double-support 6 is a rotating shaft 17, and a supporting wheel 7 is arranged on the rotating shaft 17.
The operating rod 12 is overall in a reversed U shape, two sides of the operating rod are made of hollow pipes, after the driving rod 3 in the double brackets 6 and the lever 11 are made into a whole, the lever 11 is inserted into the hollow pipe of the operating rod 12, the operating rod 12 is pulled back and forth, and the driving rod 3 can slide in the hollow pipe but cannot be pulled out; when the operating lever 12 is pressed up and down, the lever 11 drives the driving rod 3 to swing around the fixed pin shaft 2, the sliding pin shaft 5 on the double-bracket 6 slides up and down in the chute 4, and the rotating shaft 17 at the bottommost hinge point drives the supporting wheel 7 to move up and down.
By adopting the structure of the double brackets 6, when the rotation angle of the power arm of the lever mechanism formed by the operating lever 12 and the lever 11 is not large, the up-and-down movement amplitude of the supporting wheel 7 is increased, namely, the up-and-down movement amplitude is doubled compared with that of a single bracket, so that the operation is more convenient.
The stopping device 8 is arranged on the outer side of the lower end of the swing rod 9 in the double-support 6, the most important safety problem when the shopping cart climbs stairs is that when the push rod 13 and the swing operating rod 12 are pulled to climb the stairs, generally, a load is loaded upwards, in order to prevent the support wheel 7 from sliding down the stairs due to hand loss, the stopping device 8 is arranged on the support wheel 7, the support wheel 7 is internally provided with the one-way bearing 16, the inner ring of the one-way bearing 16 is integrated with the rotating shaft 17, the outer ring of the one-way bearing is fixedly connected with the rubber ring 15, when the shopping cart ascends the stairs, the handle of the positioning pin 14 is arranged in the groove of the upstairs position 20, so that the rotating shaft 17 is fixed by the positioning pin 14 and cannot rotate, but the one-way bearing 16 can also rotate in one direction, when the push rod 13 is pulled to ascend.
The working process is divided into two cases:
1. pulling shopping cart to go upstairs
Firstly, a positioning pin 14 is arranged at an upstairs position 20 of a stopping device 8, an operator pulls the cart to the edge of a stair, when a rear side travelling wheel 10 is in contact with a step, one hand pulls an operating rod 12 outwards to extend, pulls the operating rod 12 upwards, and meanwhile, the other hand slightly presses a push rod 13 downwards, so that a double-bracket 6 extends in the vertical direction, a sliding pin shaft 5 slides downwards in a sliding groove 4, a bottommost hinge point drives a supporting wheel 7 to move downwards to support the shopping cart, when the bottom of the travelling wheel 10 is equal to the height of the previous step surface, the push rod 13 is pulled, the supporting wheel 7 rotates to pull the shopping cart to the step, the operating rod 13 is moved downwards, and the operating rod 13 automatically falls down to retract the supporting wheel 7 upwards; the cart is pulled further forward, and when the rear running wheel 10 again bumps over a step, the supporting wheel is in the middle of the step width H, and the above-described operation is repeated until the cart is pulled upstairs and home.
2. Shopping cart stairs for going downstairs
The positioning pin 14 is arranged at the downstairs position 19 of the stopping device 8, when the shopping cart is pushed downstairs and the rear side travelling wheel 10 is positioned at the edge of a stair step, the operating rod 12 is pulled upwards, the supporting wheel 7 moves downwards to reach the surface of the next step, the shopping cart is pushed forwards, when the supporting wheel 7 rotates to move to the middle position of the width direction H of the next step, the operating rod 12 is pressed or loosened, the supporting wheel 7 is folded upwards, the shopping cart stably falls on the step, then the shopping cart is pushed to the edge of the next step, and the operation is repeated, so that the shopping cart can be stably downstairs.
When the operating lever 12 is pulled out, the power arm is longer due to the lever action, so that the shopping cart does not need to be operated by a large force no matter going upstairs or downstairs, the rest can be suspended at any time in the middle, the labor is saved compared with the method of directly carrying goods to go upstairs or downstairs, the operating lever is pushed back to be put down when the shopping cart is not used, the supporting wheel 7 can be automatically lifted, and the influence on the flat ground on pushing the shopping cart to walk is avoided.
When shopping in the market, also often need walk on the road that has the step, a climb stair shopping cart not only can be used for climbing stair, also can be used to walk on the road that has the step, labour saving and time saving.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A stair climbing shopping cart is characterized by comprising a shopping cart body (1), a fixed pin shaft (2), a driving rod (3), a sliding chute (4), a sliding pin shaft (5), a double support (6), a supporting wheel (7), a stop device (8), a swinging rod (9), a walking wheel (10), a lever (11), an operating rod (12), a push rod (13) and a rotating shaft (17);
the bottom of the shopping cart body (1) is provided with four traveling wheels (10), the upper part of the rear side surface is provided with a push rod (13), and the left side surface and the right side surface are symmetrically provided with stair climbing devices;
the shopping cart is characterized in that the fixed pin shafts (2) are fixedly arranged on two sides of the shopping cart body (1), the distance between the fixed pin shafts (2) and the rear side surface is half of the width H of a stair step, sliding grooves (4) are machined in the shopping cart body (1) on the lower side of the fixed pin shafts (2), and double supports (6) are connected to the fixed pin shafts (2);
the double-support (6) is composed of 6 rod piece hinges, the middle cross hinge point is a sliding pin shaft (5), one end of the sliding pin shaft (5) is embedded into the sliding groove (4) and can only slide up and down in the sliding groove (4), the hinge point at the bottommost of the double-support (6) is a rotating shaft (17), a supporting wheel (7) is installed on the rotating shaft (17), and a stop device (8) is installed on a protrusion at the outer side of the lower end of a swing rod (9) in the double-support (6);
the operating rod (12) is integrally n-shaped, two sides of the operating rod are made of hollow pipes, after the driving rod (3) in the double brackets (6) and the lever (11) are made into a whole, the lever (11) is inserted into the hollow pipe of the operating rod (12), the operating rod (12) is pulled back and forth, and the driving rod (3) can slide in the hollow pipes but cannot be separated; the operating rod (12) is pressed up and down, the lever (11) drives the driving rod (3) to swing around the fixed pin shaft (2), the sliding pin shaft (5) on the double-support (6) slides up and down in the sliding groove (4), and the rotating shaft (17) at the hinge point at the bottommost drives the supporting wheel (7) to move up and down.
2. A shopping cart for climbing stairs as claimed in claim 1, wherein the supporting wheel (7) comprises a one-way bearing (16) mounted on a rotating shaft (17), the inner ring of the one-way bearing (16) is integrated with the rotating shaft (17), and the outer ring is fixedly connected with the rubber ring (15).
3. A shopping cart for climbing stairs as claimed in claim 1, wherein the stopping device (8) comprises a positioning pin (14), a positioning cover (18), a down-going position (19), an up-going position (20); the outer side of the lower end of the swing rod (9) is protruded, a rotating shaft (17) is provided with a positioning pin hole, a positioning pin (14) is inserted into the positioning pin hole, the position of the positioning pin (14) is determined by a downstairs position (19) and an upstairs position (20) on a positioning cover (18), when a handle of the positioning pin (14) is positioned in a groove of the upstairs position (20), the rotating shaft (17) cannot rotate, but the supporting wheel (7) can rotate in a single direction, and when the handle of the positioning pin (14) is positioned in the groove of the downstairs position (19), the rotating shaft (17) can rotate in the swing rod (9), and then the supporting wheel (7) can rotate in a front-back two-way mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921843406.0U CN210941913U (en) | 2019-10-25 | 2019-10-25 | Stair climbing shopping cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921843406.0U CN210941913U (en) | 2019-10-25 | 2019-10-25 | Stair climbing shopping cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210941913U true CN210941913U (en) | 2020-07-07 |
Family
ID=71393864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921843406.0U Active CN210941913U (en) | 2019-10-25 | 2019-10-25 | Stair climbing shopping cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210941913U (en) |
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2019
- 2019-10-25 CN CN201921843406.0U patent/CN210941913U/en active Active
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