CN216070145U - Electronic small handcart that can creep step - Google Patents

Abstract

The utility model relates to the technical field of small carts and discloses an electric small cart capable of climbing steps, which comprises a cart body, wherein first rotating shafts are symmetrically and rotatably arranged at the bottom of the cart body, and moving devices are arranged on the outer surfaces of two ends of each first rotating shaft; every mobile device includes wheel hub, second gear, a plurality of climbing mechanism and a plurality of moving mechanism, every two the second gear all fixes at the both ends of first axis of rotation, and every second gear is located the inside center department of wheel hub, and a plurality of climbing mechanisms and moving mechanism equidistance are alternately installed at wheel hub's surface. According to the utility model, the climbing mechanism and the moving mechanism are arranged in the moving devices, when the two moving devices on the front side of the trolley contact the water caltrops of the step, the water caltrops of the step extrude the arc-shaped pressing block, so that the first pressing block of the arc-shaped pressing block compresses the first damping spring through the first pressing rod.

Description

Electronic small handcart that can creep step

Technical Field

The utility model relates to the technical field of small carts, in particular to an electric small cart capable of climbing steps.

Background

When goods are transported from outdoors to indoors, the goods are generally transported in a manual mode or transported through a cart, but when the goods are transported manually, certain labor burden is added to workers, and the efficiency is low; when using the shallow to transport, can present the step inevitable, lead to the unable climbing step of shallow, still need the manpower to carry the goods once more, so need use the electronic small handcart that can creep the step.

Some trolleys on the market today:

(1) in the process of goods transportation, steps can be avoided, and the conventional trolley does not have the function of climbing the steps.

(2) In the process of transporting goods, the wheels are inevitably moved to cause damage or insufficient air pressure, so that the small handcart cannot transport goods, and the existing small handcart does not have the function of frequently replacing the moving wheels.

We have therefore proposed an electric trolley capable of climbing steps in order to solve the problems set out above.

Disclosure of Invention

Technical problem to be solved

In view of the defects of the prior art in the background art, the present invention provides an electric cart capable of climbing steps, so as to solve the problems that some electric carts capable of climbing steps in the market provided in the background art do not have the function of climbing steps and the moving wheels are damaged and cannot be used.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme:

an electric trolley capable of climbing steps comprises a trolley body, wherein first rotating shafts are symmetrically and rotatably mounted at the bottom of the trolley body, and moving devices are mounted on the outer surfaces of two ends of each first rotating shaft;

each moving device comprises a hub, a second gear, a plurality of climbing mechanisms and a plurality of moving mechanisms, wherein each two second gears are fixed at two ends of the first rotating shaft, each second gear is positioned in the center of the inside of the hub, and the plurality of climbing mechanisms and the plurality of moving mechanisms are equidistantly and crossly arranged on the outer surface of the hub;

each climbing mechanism comprises an arc-shaped pressing block, a first pressing rod, a first pressing assembly and an arc-shaped rack, each first pressing assembly comprises a first sliding sleeve, a first pressing block and a first damping spring, each first pressing block is fixed on the outer surface of the first pressing rod, the first pressing block is slidably mounted on the inner wall of the first sliding sleeve, two ends of each first damping spring are respectively fixed with the bottom of the first pressing block and the bottom wall of the first sliding sleeve, two ends of each first pressing rod respectively penetrate through the upper side and the lower side of the first sliding sleeve, the arc-shaped pressing block is fixed at one end of the first pressing rod, the arc-shaped pressing block is located on the outer side of the hub, the arc-shaped rack is fixed at the other end of the first pressing rod, and the arc-shaped rack is located on the inner side of the hub;

each moving mechanism comprises a supporting piece, a moving wheel telescopic piece, a second rotating shaft, a moving wheel, a third gear, a conveying chain, a fixed rod, a duplicate gear and a second pressing assembly, each moving wheel and the third gear are respectively fixed on the outer surface of the second rotating shaft, a moving wheel placing groove is formed in the upper portion of one side of the moving wheel telescopic piece, the moving wheel is located inside the moving wheel placing groove, a groove is formed in the lower portion of the other side of the moving wheel telescopic piece, two ends of the second rotating shaft are respectively rotatably installed on the side wall of the moving wheel placing groove and the side wall of the groove, the duplicate gear is rotatably installed on one side of the lower portion of the fixed rod, a rectangular hole is formed in one side of the supporting piece, the fixed rod is fixed on the side wall of the groove, the bottom of the fixed rod penetrates through the rectangular groove and is located inside the hub, and the duplicate gear is rotatably installed on one side of the bottom of the fixed rod, the inner wall of the transmission chain is respectively meshed with the outer surface of the duplicate gear and the outer surface of the third gear;

the second pressing assembly comprises a second pressing rod, a second pressing block, a second damping spring and a second sliding sleeve; the spout with removing wheel extensible member looks adaptation is seted up at support piece's top, and removes the top sliding connection that the wheel extensible member passes through spout and support piece, the circular slot has been seted up to the bottom symmetry of spout, second damping spring and second sliding sleeve are all fixed at the diapire of circular slot, and the second sliding sleeve is located the inside of second damping spring, the surface at the second depression bar is fixed to the second briquetting, the diapire at removing the wheel extensible member is fixed to the second depression bar, second depression bar slidable mounting is in the inside of second sliding sleeve, the top at second damping spring is fixed to the second briquetting.

Preferably, the bottom of the cart body is further fixed with a motor, an output end of the motor is sleeved with a chain, a first chain wheel is fixed on the outer surface of one of the first rotating shafts, and the other end of the chain is sleeved on the outer surface of the first chain wheel.

Furthermore, limiting grooves are symmetrically formed in two sides of each supporting piece, and two ends of each arc-shaped pressing block are slidably mounted inside the limiting grooves in the side walls of the two supporting pieces.

Furthermore, every the both ends of first axis of rotation all are blocked to be had a bearing, every the mobile device all blocks the surface at the bearing.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, the climbing mechanism and the moving mechanism are arranged in the moving devices, when the two moving devices on the front side of the trolley contact the water chestnuts of the steps, the water chestnuts of the steps extrude the arc-shaped pressing block, so that the arc-shaped pressing block enables the first pressing block to be in a compression state on the first damping spring through the first pressing rod, the first pressing rod drives the arc-shaped rack to be meshed with the outer surface of the second gear, the second gear drives the hub to rotate through the first pressing rod, one of the moving wheels plays a role in supporting the top of the step while the hub rotates, the hub rotates again, and the second gear completes the work of climbing the steps through the supporting piece and the moving wheel telescopic piece in sequence.

(2) When the movable wheel is damaged or the air pressure is insufficient in the process of transporting goods, the arc pressing block is pressed, so that the arc pressing block meshes the arc rack and the second gear through the first pressing rod, the second gear drives the hub to rotate through the first pressing rod, and the hub drives the movable wheel to rotate through the support piece and the movable wheel telescopic piece, so that the work of replacing the movable wheel is completed, and the using effect of the small cart is improved.

(3) According to the utility model, the output end of the motor can drive the first chain wheel to rotate through the chain by adjusting the motor in the process of transporting goods, and the first chain wheel drives the moving device to rotate through the first rotating shaft, so that the work of moving the trolley is completed, and the labor amount of workers is reduced.

Drawings

Fig. 1 is a schematic perspective view of an electric cart capable of climbing steps according to the present invention;

FIG. 2 is a schematic top view of the electric cart capable of climbing steps according to the present invention;

FIG. 3 is a schematic sectional view of a moving device of an electric cart capable of climbing steps according to the present invention;

fig. 4 is a schematic view of the internal structure of a first pressing assembly in the electric cart capable of climbing steps according to the present invention;

FIG. 5 is a schematic sectional view of a moving device of an electric cart capable of climbing steps according to the present invention;

fig. 6 is a schematic view of a partial cross-sectional structure of a moving device in an electric cart capable of climbing steps according to the present invention.

In the figure: the trolley comprises a trolley body 1, a motor 2, a bearing 3, a chain 4, a first chain wheel 5, a first rotating shaft 6, a hub 71, a second gear 72, an arc-shaped pressing block 731, a first pressing rod 732, a first pressing component 733, a first sliding sleeve 7331, a first pressing block 7332, a first damping spring 7333, an arc-shaped rack 734, a supporting piece 741, a moving wheel telescopic piece 742, a second rotating shaft 743, a moving wheel 744, a third gear 745, a transmission chain 746, a fixing rod 747, a double-linkage gear 748, a second pressing component 749, a second pressing rod 7491, a second pressing block 7492, a second damping spring 7493 and a second sliding sleeve 7494.

Detailed Description

The technical solutions in the embodiments of the present invention will be 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention

Referring to fig. 1 to 6, the present invention provides an electric cart capable of climbing steps, including a cart body 1, first rotating shafts 6 are symmetrically and rotatably installed at the bottom of the cart body 1, and a moving device is installed on the outer surface of each of the two ends of each of the first rotating shafts 6;

each moving device comprises a hub 71, second gears 72, a plurality of climbing mechanisms and a plurality of moving mechanisms, wherein each two second gears 72 are fixed at two ends of the first rotating shaft 6, each second gear 72 is positioned at the center inside the hub 71, and the plurality of climbing mechanisms and the plurality of moving mechanisms are equidistantly and crossly arranged on the outer surface of the hub 71;

each climbing mechanism comprises an arc-shaped pressing block 731, a first pressing rod 732, a first pressing component 733 and an arc-shaped rack 734, each first pressing component 733 comprises a first sliding sleeve 7331, a first pressing block 7332 and a first damping spring 7333, each first pressing block 7332 is fixed on the outer surface of the first pressing rod 732, the first pressing block 7332 is slidably mounted on the inner wall of the first sliding sleeve 7331, two ends of the first damping spring 7333 are respectively fixed with the bottom of the first pressing block 7332 and the bottom wall of the first sliding sleeve 7331, two ends of the first pressing rod 732 respectively penetrate through the upper side and the lower side of the first sliding sleeve 7331, the arc-shaped pressing block 731 is fixed at one end of the first pressing rod 732, the arc-shaped pressing block 731 is located on the outer side of the hub 71, the arc-shaped rack 734 is fixed at the other end of the first pressing rod 732, and the arc-shaped rack 734 is located on the inner side of the hub 71;

each moving mechanism comprises a supporting piece 741, a moving wheel telescopic piece 742, a second rotating shaft 743, a moving wheel 744, a third gear 745, a conveying chain 746, a fixing rod 747, a duplicate gear 748 and a second pressing component 749, wherein each moving wheel 744 and the third gear 745 are respectively fixed on the outer surface of the second rotating shaft 743, a moving wheel placing groove is formed in the upper portion of one side of the moving wheel telescopic piece 742, the moving wheel 744 is positioned in the moving wheel placing groove, a groove is formed in the lower portion of the other side of the moving wheel telescopic piece 742, two ends of the second rotating shaft 743 are respectively rotatably installed on the side wall of the moving wheel placing groove and the side wall of the groove, the duplicate gear 748 is rotatably installed on one side of the lower portion of the fixing rod 747, a rectangular hole is formed in one side of the supporting piece 741, the fixing rod 747 is fixed on the side wall of the groove, the bottom of the fixing rod 747 penetrates through the rectangular groove and is positioned in the hub 71, the duplicate gear 748 is rotatably installed on one side of the bottom of the fixing rod 747, the inner wall of the transmission chain 746 is meshed with the outer surface of the duplicate gear 748 and the outer surface of the third gear 745 respectively;

the second pressing assembly 749 includes a second pressing rod 7491, a second pressing block 7492, a second damping spring 7493 and a second sliding sleeve 7494; the top of the support 741 is provided with a sliding chute adapted to the moving wheel telescopic member 742, the moving wheel telescopic member 742 is slidably connected with the top of the support 741 through the sliding chute, the bottom of the sliding chute is symmetrically provided with a circular groove, the second damping spring 7493 and the second sliding sleeve 7494 are both fixed on the bottom wall of the circular groove, the second sliding sleeve 7494 is located inside the second damping spring 7493, the second pressing block 7492 is fixed on the outer surface of the second pressing rod 7491, the second pressing rod 7491 is fixed on the bottom wall of the moving wheel telescopic member 742, the second pressing rod 7491 is slidably mounted inside the second sliding sleeve 7494, and the second pressing block 7492 is fixed on the top of the second damping spring 7493;

according to the illustration of fig. 2, as a preferred embodiment of the present invention: the bottom of the cart body 1 is also fixed with a motor 2, the output end of the motor 2 is sleeved with a chain 4, a first chain wheel 5 is fixed on the outer surface of one first rotating shaft 6, the other end of the chain 4 is sleeved on the outer surface of the first chain wheel 5, so that the output end of the motor 2 drives the first chain wheel 5 to rotate through the chain 4, the first chain wheel 5 drives the moving device to rotate through the first rotating shaft 6, the work of moving the small cart is completed, and the labor amount of workers is reduced;

according to the illustration in fig. 3, as a preferred embodiment of the present invention: limiting grooves are symmetrically formed in two sides of each supporting piece 741, and two ends of each arc-shaped pressing block 731 are slidably mounted in the limiting grooves in the side walls of the two supporting pieces 741, so that the limiting grooves can limit the arc-shaped pressing blocks 731, and the possibility of shaking the arc-shaped pressing blocks 731 is reduced.

According to the scheme shown in figure 1, as a preferred technical scheme of the utility model: the bearing 8 is connected to the two ends of each first rotating shaft 6 in a clamped mode, each moving device is connected to the outer surface of the bearing 8 in a clamped mode, and the moving mechanism and the climbing mechanism can work.

The working principle of the embodiment is as follows: when the electric trolley capable of climbing steps is used, as shown in fig. 1 and 2-6, the whole device is composed of a trolley body 1, a motor 2, a first rotating shaft 6 and moving devices, firstly, the motor 2 is turned on, the output end of the motor 2 drives a first chain wheel 5 to rotate through a chain 4, the first chain wheel 5 drives a second chain wheel to rotate through the first rotating shaft 6, two moving wheels 744 at the bottom of each moving device are contacted with the ground, the gravity of the trolley body 1 presses two moving wheels 744 at the bottom of each moving device, so that the moving wheels 744 extrude one side of a moving wheel telescopic piece 742 through a second rotating shaft 743, the moving wheel telescopic piece 742 presses a second damping spring 7493 through a second 7491 and a second pressing block 7492 in sequence, one side of the moving wheel telescopic piece 742 retracts to be pressed in a supporting piece 741, thereby, the movable wheel telescopic part 742 drives the dual gear 748 to move towards the inner side of the hub 71 through the fixing rod 747, so that the two dual gears 748 are meshed with the outer surface of the second gear 72, the second gear 72 drives the dual gear 748 to rotate, the dual gear 748 drives the third gear 745 to rotate through the transmission chain 746, the third gear 745 drives the movable wheel 744 to move through the second rotating shaft 743, when the movable wheel is moved to the step position, the diamond corner of the step can be pressed by the arc pressing block 731, the arc pressing block presses the first damping spring 7333 through the first pressing rod 732 and the first pressing block 7332, so that the first pressing rod 732 drives the arc rack 734 to mesh with the outer surface of the second gear 72, the second gear 72 drives the arc rack 734 to rotate, so that the arc rack 734 drives the hub 71 to rotate through the first rod 732, thus, the hub 71 drives the support 741 and the movable wheel extender 742 to rotate in turn, and the step climbing work is completed through the movable wheel extender 742 and the movable wheel 744.

The above is the operation of the whole device, and the details which are not described in detail in this specification are well known to those skilled in the art.

The motors presented herein may each be electrically connected to an external controller, and the controller may be electrically connected to an external storage battery, and the controller may be a conventionally known device that plays a role of control for a computer or the like.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be noted that, in the present invention, in the description of the present invention, the meaning of "a plurality" is two or more, and unless otherwise specifically limited, the terms "disposed", "mounted", "connected", "fixed", and the like are to be understood broadly, and for example, may be a fixed connection or a detachable connection; or indirectly through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations; it will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.

Claims (4)

1. The electric trolley capable of climbing steps comprises a trolley body (1), and is characterized in that first rotating shafts (6) are symmetrically and rotatably mounted at the bottom of the trolley body (1), and moving devices are mounted on the outer surfaces of two ends of each first rotating shaft (6);

each moving device comprises a hub (71), a second gear (72), a plurality of climbing mechanisms and a plurality of moving mechanisms, wherein every two second gears (72) are fixed at two ends of the first rotating shaft (6), each second gear (72) is located at the center of the interior of the hub (71), and the plurality of climbing mechanisms and the plurality of moving mechanisms are equidistantly and crossly arranged on the outer surface of the hub (71);

each climbing mechanism comprises an arc-shaped pressing block (731), a first pressing rod (732), a first pressing component (733) and an arc-shaped rack (734), each first pressing component (733) comprises a first sliding sleeve (7331), a first pressing block (7332) and a first damping spring (7333), each first pressing block (7332) is fixed on the outer surface of the first pressing rod (732), the first pressing block (7332) is installed on the inner wall of the first sliding sleeve (7331) in a sliding manner, two ends of the first damping spring (7333) are respectively fixed with the bottom of the first pressing block (7332) and the bottom wall of the first sliding sleeve (7331), two ends of the first pressing rod (7331) respectively penetrate through the upper side and the lower side of the first sliding sleeve (7331), the arc-shaped block (731) is fixed at one end of the first pressing rod (732), the arc-shaped pressing block (731) is located on the outer side of the hub (71), and the arc-shaped rack (734) is fixed at the other end of the first pressing rod (732), and the arc-shaped rack (734) is positioned at the inner side of the hub (71);

each moving mechanism comprises a supporting piece (741), a moving wheel telescopic piece (742), a second rotating shaft (743), a moving wheel (744), a third gear (745), a transmission chain (746), a fixing rod (747), a duplicate gear (748) and a second pressing assembly (749), wherein each moving wheel (744) and the third gear (745) are respectively fixed on the outer surface of the second rotating shaft (743), a moving wheel placing groove is formed in the upper portion of one side of the moving wheel telescopic piece (742), the moving wheel (744) is located inside the moving wheel placing groove, a groove is formed in the lower portion of the other side of the moving wheel telescopic piece (742), two ends of the second rotating shaft (743) are respectively rotatably installed on the side wall of the moving wheel placing groove and the side wall of the groove, the duplicate gear (748) is rotatably installed on one side of the lower portion of the fixing rod (747), a rectangular hole is formed in one side of the supporting piece (741), the fixing rod (747) is fixed on the side wall of the groove, the bottom of the fixing rod (747) penetrates through the rectangular groove and is positioned inside the hub (71), the duplicate gear (748) is rotatably installed on one side of the bottom of the fixing rod (747), and the inner wall of the conveying chain (746) is respectively meshed with the outer surface of the duplicate gear (748) and the outer surface of the third gear (745);

the second pressing assembly (749) comprises a second pressing rod (7491), a second pressing block (7492), a second damping spring (7493) and a second sliding sleeve (7494); the top of support piece (741) is seted up with the spout that removes wheel extensible member (742) looks adaptation, and removes wheel extensible member (742) and pass through the top sliding connection of spout with support piece (741), the circular slot has been seted up to the bottom symmetry of spout, second damping spring (7493) and second sliding sleeve (7494) are all fixed in the diapire of circular slot, and second sliding sleeve (7494) are located the inside of second damping spring (7493), second briquetting (7492) are fixed in the surface of second depression bar (7491), the diapire at removal wheel extensible member (742) is fixed in second depression bar (7491), second depression bar (7491) slidable mounting is in the inside of second sliding sleeve (7494), second briquetting (7492) are fixed in the top of second damping spring (7493).

2. The electric trolley capable of climbing steps as claimed in claim 1, wherein a motor (2) is further fixed at the bottom of the trolley body (1), a chain (4) is sleeved on an output end of the motor (2), a first chain wheel (5) is fixed on an outer surface of one of the first rotating shafts (6), and the other end of the chain (4) is sleeved on an outer surface of the first chain wheel (5).

3. The electric trolley capable of climbing steps as claimed in claim 1, wherein each of the supports (741) has a pair of symmetrical limiting grooves on both sides, and each of the arc-shaped pressing blocks (731) has two ends slidably mounted inside the limiting grooves on the side walls of the two supports (741).

4. The electric trolley capable of climbing steps as claimed in claim 1, wherein bearings (3) are clamped at both ends of each first rotating shaft (6), and each moving device is clamped on the outer surface of each bearing (3).

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