CN213799087U

CN213799087U - Novel handcart wheel

Info

Publication number: CN213799087U
Application number: CN202022816248.9U
Authority: CN
Inventors: 单宝友
Original assignee: Qingdao Jinfucheng Machinery Manufacturing Co ltd
Current assignee: Qingdao Jinfucheng Machinery Manufacturing Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-07-27
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a novel handcart wheel, this wheel include rolling device, connecting axle. The rolling device is rotationally connected with the connecting shaft. The rolling device comprises wheels, an intermediate shaft, a connecting strip, a first shaft, a second shaft, a fixing shaft and a connecting shaft. A return spring is arranged between the first shaft and the second shaft, one side of the second shaft is connected with the first shaft in a sliding mode, and the other side of the second shaft is fixedly connected with a fixed shaft of the other rolling device. The utility model discloses a rotary motion of three rolling device realizes that the handcart climbs the stair motion. The utility model discloses a three rolling device passes through flexonics, can cushion when the motion of unevenness road surface and inhale the shake, reduces jolting of handcart.

Description

Novel handcart wheel

Technical Field

The utility model relates to a handcart accessory field, in particular to novel handcart wheel.

Background

The trolley is convenient and easy to store, is popular among people, and provides convenience for a plurality of old people to buy vegetables and shop. The trolley provides convenience for shopping, but the wheels of the trolley are mostly solid and have no shock absorption function, so that the trolley can bump and damage objects in the trolley when running on uneven roads. Many residential areas do not have the elevator, also can the step appear in the urban construction unavoidably, and the handcart on the present market does not possess the stair function of climbing, and the transport problem when the handcart of filling with the thing meets stair is waited to solve urgently.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiencies in the above-mentioned background art, the utility model provides a novel handcart wheel.

The utility model provides a technical scheme that its technical problem adopted is: a novel handcart wheel comprises a rolling device and a connecting shaft. The rolling device is rotatably connected with the connecting shaft. The rolling device comprises wheels, a middle shaft, a connecting strip, a first shaft, a second shaft and a fixing shaft. The wheel is rotationally connected with the intermediate shaft, the intermediate shaft is rotationally connected with the connecting strip, the connecting strip is rotationally connected with the fixed shaft, one side of the first shaft is fixedly connected with the fixed shaft, and the other side of the first shaft is sleeved in the second shaft and is in sliding connection with the second shaft. And a return spring is arranged between the first shaft and the second shaft. One side of the connecting strip is rotationally connected with the intermediate shaft, and the other side of the connecting strip is rotationally connected with the connecting shaft. The utility model discloses a three rolling device and a connecting axle. The three rolling devices are uniformly distributed around the connecting shaft along the circumferential direction. One side of the second shaft is connected with the first shaft in a sliding mode, and the other side of the second shaft is fixedly connected with a fixed shaft of the other rolling device. The utility model discloses a rolling device includes two connecting strips, two the connecting strip sets up respectively the both sides of wheel, two the connecting strip passes through the fixed shaft and connects.

The utility model has the advantages that: the utility model discloses set up three rolling device, can realize that the handcart climbs the stair motion through the rotary motion of three rolling device. The utility model discloses three rolling device passes through flexonics, can cushion when the motion of unevenness road surface and inhale the shake, reduces jolting of handcart.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the rolling device of the present invention.

Fig. 3 is a schematic view of the stair climbing state of the present invention.

In the figure, 1 is a rolling device, 2 is a connecting shaft, 11 is a wheel, 12 is an intermediate shaft, 13 is a connecting strip, 14 is a first shaft, 15 is a second shaft, and 16 is a fixed shaft.

Detailed Description

As shown in fig. 1 and 2, the novel trolley wheel comprises a rolling device 1 and a connecting shaft 2. The rolling device 1 is rotatably connected with the connecting shaft 2. The rolling device 1 comprises wheels 11, an intermediate shaft 12, a connecting strip 13, a first shaft 14, a second shaft 15 and a fixed shaft 16. The wheel 11 is connected with the intermediate shaft 12 in a rotating mode, the intermediate shaft 12 is connected with the connecting strip 13 in a rotating mode, the connecting strip 13 is connected with the fixed shaft 16 in a rotating mode, one side of the first shaft 14 is fixedly connected with the fixed shaft 1, the other side of the first shaft is sleeved in the second shaft 15 and is connected with the second shaft 15 in a sliding mode, and the second shaft 15 is fixedly connected with the fixed shaft 16. A return spring is arranged between the first shaft 14 and the second shaft 15. One side of the connecting strip 13 is rotationally connected with the intermediate shaft 12, and the other side is rotationally connected with the connecting shaft 2.

The utility model comprises a three rolling device 1 and a connecting shaft 2. The three rolling devices 1 are evenly distributed in the circumferential direction around the connecting shaft 2. The second shaft 15 is connected to the first shaft 14 at one side thereof in a sliding manner and is connected to the fixed shaft 16 of the other rolling device 1 at the other side thereof in a rotating manner. A return spring is arranged between the first shaft 14 and the second shaft 15. One side of the return spring is fixedly connected with the first shaft 14, and the other side of the return spring is fixedly connected with the second shaft 15. When the first shaft 14 slides inwards in the second shaft 15 to compress the return spring, the compressed return spring exerts an outward thrust on the first shaft 14 to allow the first shaft 14 to slide outwards in the second shaft 15 as the original length of the return spring is restored; when the first shaft 14 slides outwardly in the second shaft 15 to extend the return spring, the extended return spring will exert an inward pulling force on the first shaft 14 to allow the first shaft 14 to slide inwardly in the second shaft 15. Similarly, when the second shaft 15 slides inwards on the first shaft 14 to compress the return spring, the compressed return spring will exert an outward thrust on the second shaft 15 to allow the second shaft 15 to slide outwards in the first shaft 14 as the original length of the return spring is restored; when the second shaft 15 slides outwards on the first shaft 14 to stretch the return spring, the stretched return spring will exert an inward pulling force on the second shaft 15 to allow the second shaft 15 to slide inwards in the first shaft 14. One rolling device 1 comprises two connecting bars 13, the two connecting bars 13 being connected by a fixed shaft 16.

The utility model discloses a three rolling device 1 round 2 evenly distributed of connecting axle, the utility model discloses be triangle-shaped, the utility model discloses there are one or two rolling devices and ground contact at the during operation, have at least one rolling device not do work. For ease of understanding, the three rolling devices of the present invention are individually identified by reference numeral A, B, C.

When the vehicle runs on an uneven road, when only one rolling device A does work, the wheel 11 is unevenly stressed, so that the intermediate shaft 12, the connecting strip 13, the first shaft 14 and the second shaft 15 are unevenly stressed and shake up and down, one end of the second shaft 15 is fixedly connected with the fixed shaft 16 of the other rolling device 1, the other rolling device does not do work, so that the side, connected with the fixed shaft 16, of the second shaft 15 is fixed, and the first shaft 14 is stressed to slide up and down in the second shaft 15. When the first shaft 14 slides up and down in the second shaft 15, the return spring is continuously compressed and stretched, and the height of the connecting shaft 2 from the ground is kept unchanged due to the buffering and shock absorbing effects of the spring, so that the height of the trolley body from the ground is kept unchanged, and the trolley can still stably move on uneven road surfaces.

Similarly, when the two rolling devices A and B do work, the two wheels are stressed unevenly, and the intermediate shafts 12, the connecting strips 13, the first shafts 14 and the second shafts 15 of the two rolling devices are stressed unevenly and rock up and down. The first shaft 14 of the rolling device a is connected with its second shaft 15, and the second shaft 15 of the rolling device B is connected with its first shaft 14. The rolling device C does not work, the first shaft 14 and the second shaft 15 of the rolling device C are both fixed, the first shaft 14 of the rolling device A is unevenly stressed, and slides up and down in the second shaft 15 of the rolling device C to continuously stretch and extrude the spring; the second shaft 15 of the B is stressed unevenly, moves up and down, and continuously stretches and extrudes the return spring. The spring absorbs the shock impact, and the height of the intermediate shaft 2 from the ground is unchanged, so that the height of the trolley body from the ground is unchanged, and the trolley can still stably move on uneven road surfaces.

As shown in fig. 3, when the handcart climbs stairs, because the first shaft 14 and the second shaft 15 of the present invention are slidably connected, the connecting bar 13 is rotatably connected with the connecting shaft 2, therefore, the distance between the three rolling devices of the present invention can be enlarged and reduced. Because the whole stair is inclined, two rolling devices always work in the movement of the trolley. The utility model discloses when climbing stair, receive ascending pulling force. The utility model moves upwards under the action of pulling force. When C climbs the building, the moving direction of A is closest to the stress direction, and A overcomes the gravity to do work and moves upwards. The wheel 11 of C contacts with the step, A and B rotate with the wheel 11 of C as the rotation axis, A rotates an angle with the wheel 11 of C as the axis while moving upwards, because the angle of A and B is fixed to be 120 degrees, B rotates along the same direction and rotates the same angle, when B rotates to the upper step, B does not rotate any more, at this moment, B moves to C original state, C moves to A original state, A moves to B original state. Similarly, under the action of the pulling force, the wheel 11 of the B rotates by an angle by taking the wheel 11 of the B as an axis while the wheel C moves upwards, when the wheel A rotates to a step higher than the step, the wheel A does not rotate any more, at the moment, the wheel A moves to the previous state of the wheel A, and the wheel C moves to the previous state of the wheel C. Through the motion of constantly following the stair inclined plane with the utility model discloses the rotatory stair that climbs that realizes the handcart of self.

The utility model discloses can cushion on the unevenness road surface and inhale shake, can realize climbing the stair motion through the rotation of wheel self again.

Claims

1. The utility model provides a novel handcart wheel, includes rolling device (1), connecting axle (2), its characterized in that: rolling device (1) includes wheel (11), jackshaft (12), connecting strip (13), primary shaft (14), secondary shaft (15), fixed axle (16), wheel (11) rotate with jackshaft (12) and are connected, jackshaft (12) rotate with connecting strip (13) and are connected, connecting strip (13) one side rotates with jackshaft (12) and is connected, and the opposite side rotates with connecting axle (2) and is connected, primary shaft (14) one side and fixed axle (16) fixed connection, the opposite side cover is in secondary shaft (15), with secondary shaft (15) sliding connection, fixed axle (16) rotate with connecting strip (13) and are connected.

2. A novel cart wheel, as claimed in claim 1, wherein: the rolling device comprises three rolling devices (1) and a connecting shaft (2), wherein the three rolling devices (1) are uniformly distributed around the connecting shaft (2) along the circumferential direction; one side of the second shaft (15) is connected with the first shaft (14) in a sliding way, and the other side of the second shaft is fixedly connected with a fixed shaft (16) of the other rolling device (1).

3. A novel cart wheel, as claimed in claim 2, wherein: and a return spring is arranged between the first shaft (14) and the second shaft (15).

4. A novel cart wheel, as claimed in claim 1, wherein: the rolling device (1) comprises two connecting strips (13), the two connecting strips (13) are arranged on two sides of the wheel (11) respectively, and the two connecting strips (13) are connected through a fixing shaft (16).