CN219339640U - Damping wheelbarrow with simplified structure - Google Patents

Abstract

The utility model discloses a damping wheelbarrow with a simplified structure, which comprises: a motor wheel; the movable frame is movably connected up and down relative to the motor wheel, and foot pedals are respectively arranged on two sides of the movable frame; the two shock absorbers are vertically arranged on two sides of the motor wheel respectively; each shock absorber comprises a mounting seat, a cylinder barrel and a piston rod, wherein the mounting seat is connected with a rotating shaft of the motor wheel, the cylinder barrel is connected with the mounting seat, the piston rod is arranged in the cylinder barrel in a sliding manner, and the end part of the piston rod extending out of the cylinder barrel is connected with the movable frame; through such setting, both shock absorbers have played the cushioning effect, have played the supporting role again, do not additionally need to set up the wheel carrier in order to install wheel and support shock absorber and movable frame, reduced the quantity of spare part, the cost is reduced to simplified the structure, made the size of wheel barrow lighter.

Description

Damping wheelbarrow with simplified structure

Technical Field

The utility model relates to the field of wheelbarrows, in particular to a damping wheelbarrow with a simplified structure.

Background

The wheel barrow is a common riding instead of walk instrument of relying on electric drive, very big make things convenient for people's short distance trip, but current wheel barrow shock attenuation effect is relatively poor, and when current wheel barrow was travelled on uneven road surface, the influence that the wheel received the road surface can produce vibrations, and the vibrations of wheel are conducted to standing pedal beam and finally are conducted to the user through the wheel carrier, leads to the user to produce uncomfortable and feel.

Of course, the shock absorber can be arranged between the movable frame and the wheel frame of the wheelbarrow, however, the number of the components of the wheelbarrow is more, the structure is more complex, the cost is higher, and in addition, the whole size of the wheelbarrow is often increased, so that the wheelbarrow does not meet the requirements of light and thin size and compact space structure.

Disclosure of Invention

In order to overcome at least one defect in the prior art, the utility model provides a shock absorption wheelbarrow with a simplified structure, and aims to solve the problems of more parts, more complex structure, larger overall size, higher cost and the like of the existing shock absorption wheelbarrow.

The utility model adopts the technical proposal for solving the problems that:

a structurally simplified shock absorbing wheelbarrow comprising: a motor wheel; the movable frame is movably connected up and down relative to the motor wheel, and foot pedals are respectively arranged on two sides of the movable frame; the two shock absorbers are vertically arranged on two sides of the motor wheel respectively; each shock absorber comprises a mounting seat, a cylinder barrel and a piston rod, wherein the mounting seat is connected with a rotating shaft of the motor wheel, the cylinder barrel is connected with the mounting seat, the piston rod is slidably arranged in the cylinder barrel, and the end part of the piston rod, which extends out of the cylinder barrel, is connected with the movable frame.

According to the shock absorption wheelbarrow with the simplified structure, the two piston rods are connected with the movable frame, the two cylinder barrels can support the movable frame, the wheels are arranged on the two mounting seats through the rotating shafts, the two shock absorbers play a role in shock absorption, the supporting effect is achieved, the wheel frames are not required to be additionally arranged to mount the wheels and support the shock absorbers and the movable frame, the number of parts is reduced, the cost is reduced, the structure is simplified, and the wheelbarrow is lighter and thinner in size.

According to some embodiments of the utility model, the vehicle further comprises a first transverse beam, wherein the first transverse beam is positioned between the movable frame and the motor wheel, and the two cylinders are arranged on the first transverse beam in a penetrating way.

By adopting the scheme, on one hand, the first transverse beam can bear gravity to lighten the load of the two cylinders; on the other hand, the first transverse beam connects the two cylinders to form a whole, so that the stress of the two cylinders can be restricted and balanced, and the inclination of the two cylinders caused by the stress is avoided; thus, the safety performance is greatly improved.

According to some embodiments of the utility model, a support block is provided at an upper portion of the cylinder barrel, the support block supporting the first transverse beam.

Through adopting above-mentioned scheme, the supporting shoe can support first transverse beam, can increase holistic bearing capacity and structural strength again.

According to some embodiments of the utility model, the first transverse beam is provided with first mounting holes on both sides thereof for penetrating the cylinder; the first transverse beam is provided with a through L-shaped groove, and the L-shaped groove extends from the side wall of the first transverse beam to the first mounting hole and is communicated with the first mounting hole so as to form a cantilever at one side of the first mounting hole; the cylinder barrel is fixedly clamped in the first mounting hole by a first fastener which detachably connects the free end of the cantilever arm with the main body part of the first transverse beam.

Through adopting above-mentioned scheme, on the one hand, the installation and the dismantlement of the cylinder of being convenient for, on the other hand, the relative distance between the main part of free end and the first transverse beam of cantilever is adjustable to make first mounting hole can adapt to not unidimensional cylinder.

According to some embodiments of the utility model, the movable frame comprises a second transverse beam and two support columns; the two support columns are respectively connected to the two sides of the second transverse beam, and are in one-to-one corresponding sliding connection with the two mounting seats; the piston rod is connected with the second transverse beam.

Through adopting above-mentioned scheme, can improve the motion stability of movable frame to can make the overall structure of wheel barrow compacter.

According to some embodiments of the utility model, the support post is sleeved on the cylinder barrel and can slide relative to the cylinder barrel.

Through adopting above-mentioned scheme, can further reduce the overall dimension of wheel barrow, and the cylinder can provide guiding effect and supporting role for the slip of support column.

According to some embodiments of the utility model, the piston rod further comprises a second fastener passing through the second transverse beam in the axial direction of the piston rod and connected to an end of the piston rod.

Through adopting above-mentioned scheme to improve the joint strength between second transverse beam and the piston rod, avoid the piston rod to drop from the second transverse beam, with the cushioning effect and the supporting role of assurance bumper shock absorber to movable frame.

According to some embodiments of the utility model, the second transverse beam is provided with a countersink, and the second fastener is located in the countersink.

Through adopting above-mentioned scheme, hide the second fastener in the counter bore, avoid the protruding second transverse beam of second fastener to the security performance has been improved.

According to some embodiments of the utility model, the rotating shaft of the motor wheel is provided with a central hole penetrating through the rotating shaft, and the mounting seat is provided with a wiring groove corresponding to the central hole.

Through adopting above-mentioned scheme, hide the electric wire in centre bore and wiring inslot, on the one hand, can improve the security, on the other hand can make the structure of wheel barrow more exquisite pleasing to the eye.

Drawings

FIG. 1 is a schematic structural view of a wheelbarrow according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is another schematic structural view of a wheelbarrow according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional structural view of section H-H of FIG. 3;

FIG. 5 is an enlarged view of part B of FIG. 4;

FIG. 6 is an enlarged view of a portion C of FIG. 4;

FIG. 7 is a schematic illustration of yet another construction of a wheelbarrow (not shown with a running gear frame) according to an embodiment of the present utility model;

fig. 8 is a partial enlarged view of the portion D in fig. 7;

fig. 9 is a partial enlarged view of the portion E in fig. 8;

fig. 10 is a schematic structural view of a first transverse beam according to an embodiment of the present utility model.

Wherein the reference numerals have the following meanings:

the bicycle comprises a 1-motor wheel, a 11-rotating shaft, a 111-center hole, a 2-movable frame, a 21-second transverse beam, a 211-free end, a 22-supporting column, a 221-strip hole, a 3-damper, a 31-mounting seat, a 311-wiring groove, a 312-guide block, a 313-limiting block, a 32-cylinder barrel, a 321-supporting block, a 33-piston rod, a 4-first transverse beam, a 41-first mounting hole, a 42-L-shaped groove, a 43-cantilever, a 5-first fastening piece, a 6-second fastening piece and a 7-pedal.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1, 3, 5 and 6, the present utility model discloses a shock absorbing wheelbarrow with simplified structure, comprising: the motor wheel 1, the movable frame 2 and the two shock absorbers 3; wherein, the movable frame 2 is movably connected up and down relative to the motor wheel 1, and the two sides of the movable frame 2 are respectively provided with a pedal 7; the two shock absorbers 3 are vertically arranged on two sides of the motor wheel 1 respectively; and, each shock absorber 3 includes mount pad 31, cylinder 32 and piston rod 33, and mount pad 31 and the pivot 11 fixed connection of motor wheel 1, cylinder 32 and mount pad 31 fixed connection, piston rod 33 slide locates in cylinder 32, and the tip and the movable frame 2 fixed connection of cylinder 32 are stretched out to piston rod 33. It should be noted that the fixed connection may be a detachable fixed connection or a non-detachable fixed connection.

It can be understood that in this embodiment, one end of the shock absorber 3 is directly connected with the motor wheel 1, and the other end is directly connected with the movable frame 2, when the wheelbarrow runs on an uneven road surface and is vibrated, the movable frame 2 can move up and down relative to the motor wheel 1, the shock absorber 3 is elastically deformed in an initial state, and can absorb the impact shock between the movable frame 2 and the motor wheel 1, so that the shock between the movable wheel and the motor wheel 1 can be absorbed, and the vibration of the wheelbarrow can be prevented from being transmitted to a user through the pedal 7.

So, through above-mentioned scheme, two piston rods 33 all are connected with movable frame 2, and two cylinder barrels 32 can support movable frame 2, and the wheel is installed on two mount pad 31 through pivot 11, and two bumper shock absorbers 3 have both played the cushioning effect, have played the supporting role again, do not additionally need to set up the wheel carrier in order to install the wheel and support bumper shock absorbers 3 and movable frame 2, have reduced the quantity of spare part, the cost is reduced to simplified the structure, make the size of wheel barrow more frivolous.

Referring to fig. 1, 2 and 4, further, in the present embodiment, the movable frame 2 includes a second transverse beam 21 and two support columns 22; the two support columns 22 are respectively connected to two sides of the second transverse beam 21, and the two support columns 22 are in one-to-one corresponding sliding connection with the two mounting seats 31; the piston rod 33 is connected to the second transverse beam 21; by the arrangement, the movement stability of the movable frame 2 can be improved, and the overall structure of the wheelbarrow can be more compact.

The two support columns 22 and the two cylinders 32 are arranged in a one-to-one correspondence, and preferably, each support column 22 is sleeved on the corresponding cylinder 32 and can slide relative to the cylinder 32; by doing so, the volume of the two support columns 22 can be reduced, thereby further reducing the overall size of the wheelbarrow, and the cylinder 32 can provide guiding and supporting functions for the sliding of the support columns 22.

Referring to fig. 4 and 5, in this embodiment, the wheelbarrow further includes a second fastener 6, where the second fastener 6 passes through the second transverse beam 21 along the axial direction of the piston rod 33 and is connected with the end of the piston rod 33 extending out of the cylinder 32, so as to improve the connection strength between the second transverse beam 21 and the piston rod 33, and avoid the piston rod 33 from falling off from the second transverse beam 21, so as to ensure that the second transverse beam 21 can drive the piston rod 33 to slide up and down in the cylinder 32 when the movable frame 2 slides up and down relative to the motor wheel 1, thereby ensuring the damping effect and supporting effect of the shock absorber 3 on the movable frame 2; specifically, in the present embodiment, the second fastener 6 is a screw, and indeed, in some embodiments, the second fastener 6 may be, but is not limited to being, a stud, a pin, a dowel, or the like.

Preferably, the second transverse beam 21 is provided with a countersink, in which the second fastening member 6 is located; so set up, hide second fastener 6 in the counter bore, avoid second fastener 6 protrusion second transverse beam 21, with other structures on the second transverse beam 21 each other not influence to the security performance has been improved.

Preferably, the second transverse beam 21 is further provided with a second mounting hole, and one end of the piston rod 33 extending out of the cylinder 32 is embedded in the second mounting hole, so as to improve the connection stability between the second transverse beam 21 and the piston rod 33, and the second fastener 6 can pass through the counter bore and the second mounting hole to be in threaded connection with the piston rod 33.

Referring to fig. 4, 5, 7 and 8, in this embodiment, the wheelbarrow further includes a first transverse beam 4, the first transverse beam 4 is located between the second transverse beam 21 and the motor wheel 1, that is, below the second transverse beam 21 and above the motor wheel 1, and two cylinders 32 are respectively disposed through the first transverse beam 4; specifically, when the wheelbarrow is parked, the second transverse beam 21 and the first transverse beam 4 are abutted; when the wheelbarrow is subjected to vibration, the second transverse beam 21 can slide up and down relative to the first transverse beam 4; so arranged, on the one hand, the first transverse beam 4 can bear the weight to relieve the load of the two cylinders 32; on the other hand, the first transverse beam 4 connects the two cylinders 32 to form a whole, so that the stress of the two cylinders 32 can be restrained and balanced, and the inclination of the two cylinders 32 caused by the stress is avoided; thus, the supporting ability of the damper 3 and the safety in operation are greatly improved.

Preferably, the upper part of the cylinder 32 is provided with a supporting block 321, and the supporting block 321 supports the first transverse beam 4 and can be in sliding fit with the supporting column 22; so configured, on the one hand, the support blocks 321 can support the first transverse beam 4 and increase the overall bearing capacity and structural strength; on the other hand, in the present embodiment, the upper portion of each cylinder 32 is fixedly connected with a supporting block 321, the lower portion of each cylinder 32 is fixedly connected with a mounting seat 31, the supporting columns 22 are in sliding fit with the supporting blocks 321 and the mounting seats 31, and the supporting blocks 321 and the mounting seats 31 bear the supporting columns 22, so that the supporting columns 22 can be prevented from deforming towards the inner sides of the wheelbarrow.

Referring to fig. 2 and 9, specifically, the mounting base 31 is further provided with a guide block 312, the support column 22 is provided with a long hole 221 extending along the sliding direction of the support column 22, and the guide block 312 and the long hole 221 are slidably matched to perform a guiding function on the sliding of the support column 22.

Referring to fig. 6, preferably, the rotating shaft 11 of the motor wheel 1 has a central hole 111 therethrough, and the mounting seat 31 is provided with a wiring groove 311 corresponding to the central hole 111; by means of the arrangement, the electric wires are hidden in the central hole 111 and the wiring groove 311, on one hand, safety can be improved, and on the other hand, the structure of the wheelbarrow can be more exquisite and attractive.

Referring to fig. 2 and 9, further, in the present embodiment, a guide block 312 is disposed on a side of the mounting seat 31 facing away from the motor wheel 1, the guide block 312 is provided with a limiting block 313, and the limiting block 313 extends out of the elongated hole 221 and forms a clamp for the support column 22, so as to prevent the support column 22 from deforming to the outside of the wheelbarrow.

Referring to fig. 7, 8 and 10, further, the first transverse beam 4 is provided with first mounting holes 41 for penetrating the cylinder 32 at both sides thereof; the first transverse beam 4 is provided with an L-shaped groove 42 penetrating through, and the L-shaped groove 42 extends from the side wall of the first transverse beam 4 to the first mounting hole 41 and is communicated with the first mounting hole 41 so as to form a cantilever 43 at one side of the first mounting hole 41; further comprising a first fastener 5, the first fastener 5 detachably connecting the free end 211 of the cantilever 43 with the main body portion of the first transverse beam 4 to clamp and secure the cylinder 32 to the first mounting hole 41; so configured, on the one hand, the mounting and dismounting of the cylinder 32 is facilitated, and on the other hand, the relative distance between the free end 211 of the cantilever 43 and the main body portion of the first transverse beam 4 is adjustable, and in particular, in this embodiment, the first fastener 5 is a stud, the relative distance between the free end 211 of the cantilever 43 and the main body portion of the first transverse beam 4 becomes smaller when the first fastener 5 is screwed, and the relative distance between the free end 211 of the cantilever 43 and the main body portion of the first transverse beam 4 becomes larger when the first fastener 5 is unscrewed, so that the first mounting hole 41 can accommodate cylinders 32 of different sizes; indeed, in some embodiments, the second fastener 6 may be, but is not limited to being, a screw, a pin, a dowel, or the like.

In summary, the damping wheelbarrow with a simplified structure disclosed by the utility model has the following beneficial effects:

1) The two shock absorbers 3 play a role in shock absorption and support, a wheel frame is not additionally required to be arranged for installing wheels and supporting the shock absorbers 3 and the movable frame 2, the number of parts is reduced, the cost is reduced, the structure is simplified, and the size of the wheelbarrow is lighter and thinner;

2) The first transverse beam 4 can bear gravity to relieve the load of the two cylinders 32; in addition, the first transverse beam 4 connects the two cylinders 32 to form a whole, so that the stress of the two cylinders 32 can be restrained and balanced, and the inclination of the two cylinders 32 caused by the stress is avoided; therefore, the supporting ability of the damper 3 and the safety in operation are greatly improved;

3) The relative distance between the free end 211 of the cantilever 43 and the main body portion of the first transverse beam 4 is adjustable to enable the first mounting hole 41 to accommodate cylinders 32 of different sizes;

4) The stopper 313 extends out of the elongated hole 221 and forms a clamp to the support column 22, so that the support column 22 can be prevented from being deformed to the outside of the wheelbarrow.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (9)

1. A simplified-construction shock absorbing wheelbarrow comprising:

a motor wheel (1);

the movable frame (2) is movably connected up and down relative to the motor wheel (1), and foot pedals (7) are respectively arranged on two sides of the movable frame (2);

the two shock absorbers (3) are vertically arranged on two sides of the motor wheel (1) respectively;

each shock absorber (3) comprises a mounting seat (31), a cylinder barrel (32) and a piston rod (33), wherein the mounting seat (31) is connected with a rotating shaft (11) of the motor wheel (1), the cylinder barrel (32) is connected with the mounting seat (31), the piston rod (33) is slidably arranged in the cylinder barrel (32), and the piston rod (33) extends out of the end part of the cylinder barrel (32) to be connected with the movable frame (2).

2. A shock absorbing wheelbarrow according to claim 1, further comprising a first transverse beam (4), the first transverse beam (4) being located between the mobile frame (2) and the motor wheel (1), both cylinders (32) being provided through the first transverse beam (4).

3. A shock absorbing wheelbarrow according to claim 2, wherein the upper portion of the cylinder (32) is provided with a support block (321), the support block (321) supporting the first transverse beam (4).

4. A shock absorbing wheelbarrow according to claim 2, wherein the two sides of the first transverse beam (4) are provided with first mounting holes (41) for passing through the cylinder (32) respectively;

the first transverse beam (4) is provided with an L-shaped groove (42) penetrating through, and the L-shaped groove (42) extends from the side wall of the first transverse beam (4) to the first mounting hole (41) and is communicated with the first mounting hole (41) so as to form a cantilever (43) at one side of the first mounting hole (41);

the damping wheelbarrow further comprises a first fastener (5), the first fastener (5) detachably connects the free end (211) of the cantilever (43) with the main body portion of the first transverse beam (4) to clamp and fix the cylinder (32) on the first mounting hole (41).

5. A shock absorbing wheelbarrow according to any one of claims 1-4, wherein the mobile chassis (2) comprises a second transverse beam (21) and two support columns (22); the two support columns (22) are respectively connected to the two sides of the second transverse beam (21), and the two support columns (22) are in one-to-one corresponding sliding connection with the two mounting seats (31); the piston rod (33) is connected to the second transverse beam (21).

6. The damping wheelbarrow according to claim 5, wherein the support post (22) is sleeved on the cylinder (32) and is capable of sliding relative to the cylinder (32).

7. A shock absorbing wheelbarrow according to claim 5, further comprising a second fastener (6), the second fastener (6) passing through the second transverse beam (21) in the axial direction of the piston rod (33) and being connected to an end of the piston rod (33).

8. A shock absorbing wheelbarrow according to claim 7, wherein the second transverse beam (21) is provided with a countersink, the second fastener (6) being located in the countersink.

9. Damping wheelbarrow according to claim 1, characterized in that the rotating shaft (11) of the motor wheel (1) has a central hole (111) therethrough, and the mounting base (31) is provided with a wiring groove (311) corresponding to the central hole (111).

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