CN215273997U - Fender, power assembly and wheelchair - Google Patents

Abstract

The utility model discloses a fender, power assembly and wheelchair belongs to the wheelchair field. The fender is arranged on the inner side of the wheel and comprises a fender body, the fender body is symmetrical relative to a reference surface, the reference surface is a section of the fender body, and the reference surface is perpendicular to a mud blocking surface of the fender body; the fender body is provided with a center hole, the axis of the center hole is positioned on a reference surface, and the fender body is configured to be in rotating connection with a wheel through the center hole; and/or at least one mounting hole group is arranged on the fender body and comprises two mounting holes which are symmetrically arranged relative to the reference plane, and the fender body is configured to be connected with the wheel in a rotating mode through one of the two mounting holes. Whole fender body is the structure of longitudinal symmetry, and same fender is applicable to left and right wheels simultaneously, the assembly of being convenient for, and the fender only need develop one set of production mould when manufacturing, reduction in manufacturing cost can.

Description

Fender, power assembly and wheelchair

Technical Field

The utility model relates to a wheelchair field especially relates to a fender, power assembly and wheelchair.

Background

The existing wheelchair generally includes a fender, which is disposed inside the wheel and is used to prevent the driver and muddy water, sand and stone thrown from the wheel to the bottom of the wheelchair from splashing. However, the existing fender needs to be manufactured for the left wheel and the right wheel respectively, that is, the fender corresponding to the left wheel and the fender corresponding to the right wheel are not interchangeable, which results in high production cost and affects assembly efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fender, the wheel of this fender adaptation left and right sides simultaneously, low in production cost, assembly efficiency is high.

In order to realize the purpose, the following technical scheme is provided:

a fender is arranged on the inner side of a wheel and comprises a fender body, wherein the fender body is symmetrical relative to a reference surface, the reference surface is a section of the fender body, and the reference surface is perpendicular to a fender surface of the fender body;

the fender body is provided with a central hole, the axis of the central hole is positioned on the reference surface, and the fender body is configured to be in rotating connection with the wheel through the central hole; and/or the presence of a gas in the gas,

the fender body is provided with at least one mounting hole group, the mounting hole group comprises two mounting holes, the two mounting holes are symmetrically arranged on the reference surface, and the fender body is configured to be connected with the wheel in a rotating mode through one of the two mounting holes.

The utility model discloses beneficial effect does:

the embodiment of the utility model provides a fender, including locating the inboard fender body of wheel, the fender body is symmetrical about the reference surface, and this reference surface is the section face of fender body. The reference surface is perpendicular to the mud-guard surface of the fender body. The mud guard surface is a side surface of the mud guard body close to the wheel. At the same time, the reference plane is also perpendicular to the direction of travel of the wheelchair (i.e., the fore-aft direction of the wheelchair). Therefore, the whole mudguard body is of a front-back symmetrical structure; the mud guard on the left wheel can be arranged on the right wheel after being turned rightwards and turned around; similarly, the mudguard on the right wheel can be arranged on the left wheel after being overturned leftwards and turned around; that is to say, same fender is applicable to left and right wheels simultaneously, and same fender both can install in left side wheel, also can install in right side wheel, and the assembly of being convenient for, and these two fenders when manufacturing, only need develop one set of production mould can, improve production efficiency, reduce manufacturing cost. The mudguard is connected with the wheel through a central hole or a mounting hole group.

Another object of the utility model is to provide a power assembly, low in production cost, assembly efficiency is high.

In order to realize the purpose, the following technical scheme is provided:

a powertrain comprising a wheel and a fender as described above, said fender being pivotally attached to the inside of said wheel.

The utility model discloses beneficial effect does:

the embodiment of the utility model provides a power assembly, a fender are applicable to the left and right sides wheel simultaneously, the assembly of being convenient for, and the fender when manufacturing, only need develop one set of production mould can, improve production efficiency, reduce manufacturing cost. The mudguard is connected with the wheel through a central hole or a mounting hole group.

Yet another object of the present invention is to provide a wheelchair, which has a low production cost and a high assembly efficiency.

In order to realize the purpose, the following technical scheme is provided:

a wheelchair comprising a powertrain as described above.

The utility model discloses beneficial effect does:

the embodiment of the utility model provides a wheelchair, a fender are applicable to left and right sides wheel simultaneously, the assembly of being convenient for, and the fender when manufacturing, only need develop one set of production mould can, improve production efficiency, reduce manufacturing cost. The mudguard is connected with the wheel through a central hole or a mounting hole group.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a first isometric view of a wheelchair in accordance with an embodiment of the present invention;

FIG. 2 is a second isometric view of a wheelchair in accordance with an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a power assembly provided in an embodiment of the present invention;

fig. 4 is an exploded view of a power assembly according to an embodiment of the present invention;

fig. 5 is a schematic view of a partial structure (toward the inner side of the wheel) of the power assembly provided by the embodiment of the present invention;

fig. 6 is a schematic view of a partial structure (toward the outer side of the wheel) of the power assembly provided by the embodiment of the present invention;

FIG. 7 is a schematic diagram of a portion of the structure of FIG. 6;

FIG. 8 is a side view of a fender provided in accordance with an embodiment of the present invention;

FIG. 9 is a first isometric view of a fender provided in accordance with an embodiment of the present invention;

FIG. 10 is a second isometric view of a fender provided in accordance with an embodiment of the present invention;

fig. 11 is a schematic structural view of a fender body according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a reflector according to an embodiment of the present invention;

fig. 13 is a third perspective view of a fender provided in an embodiment of the present invention.

Reference numerals:

100. a power assembly;

10. a fender; 20. a power mechanism; 30. a wheel;

1. a fender body; 11. a first mud guard; 111. a reflector mounting position; 12. a second mud retaining part; 121. mounting hole groups; 1211. mounting holes; 122. positioning a groove; 123. a central slot;

2. a light-reflecting sheet;

3. a housing; 31. reserving a hole;

4. a first positioning member; 5. a second positioning member;

6. and (4) a suspension.

Detailed Description

In order to make the technical problems, technical solutions adopted and technical effects achieved by the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the present embodiment provides a fender 10 which can be attached to a wheel 30 of a bicycle, an automobile, a wheelchair, or the like, and prevents a driver and muddy water, sand, stone, or the like thrown off from the wheel 30 from splashing and dirtying. The present embodiment will be explained by taking an example in which the fender 10 is attached to a wheelchair and the fender 10 is provided on the inner side of both the left and right wheels 30.

As shown in fig. 8 to 13, the fender 10 includes a fender body 1. The fender body 1 is a main structure of the fender 10 for realizing mud blocking. The fender body 1 is provided inside the wheel 30. The fender body 1 is symmetrical about a reference plane. The reference plane (indicated by a broken line in fig. 8) is a cross-sectional plane of the fender body 1. It is understood that the cutting plane refers to an imaginary plane that can cut the fender body 1 in two. The reference plane is perpendicular to the fender surface of the fender body 1. The mud guard surface is a side surface of the mud guard body 1 close to the wheel 30. At the same time, the reference plane is also perpendicular to the direction of travel of the wheelchair (i.e., the fore-aft direction of the wheelchair). Therefore, the whole mudguard body 1 is of a front-back symmetrical structure; the mudguard 10 on the left wheel can be arranged on the right wheel after being turned rightwards and turned around; similarly, the mudguard 10 on the right wheel can be installed on the left wheel after being turned leftwards and turned around; that is to say, the same fender 10 is applicable to the left and right wheels simultaneously, the same fender 10 can be installed on the left wheel and the right wheel, so that the assembly is convenient, and when the two fenders 10 are manufactured, only one set of production mold needs to be developed, so that the production efficiency is improved, and the manufacturing cost is reduced.

In an embodiment, the fender body 1 is provided with a center hole (not shown), an axis of the center hole is located on a reference surface, and the fender body 1 can be connected with a left wheel through the center hole or can be rotatably connected with a right wheel through the center hole.

In another embodiment, as shown in fig. 8 and 13, the mudguard body 1 is provided with at least one mounting hole group 121. Each of the mounting hole groups 121 includes two mounting holes 1211. The two mounting holes 1211 are symmetrically disposed about the reference plane. The fender 10 mounted on the right wheel is rotatably connected to the right wheel through one of the mounting holes 1211, and the fender 10 mounted on the left wheel is rotatably connected to the left wheel through the other mounting hole 1211. By providing two mounting holes 1211 that are symmetrical about a reference plane, the same fender 10 is connected to the left and right wheels 30, respectively. The mounting hole group 121 may be provided in plurality, specifically, as described below.

Obviously, the same fender 10 can be connected to the left and right wheels 30 by providing only a center hole in the fender body 1, by providing only the mounting hole group 121 in the fender body 1, or by providing both the center hole and the mounting hole group 121 in the fender body 1.

In this embodiment, as shown in fig. 9 to 11 and 13, the fender body 1 includes a first fender portion 11 and a second fender portion 12 connected to each other. The first fender portion 11 is located above the wheel 30. The second mud stop 12 is located inside the wheel 30 and is rotatably connected to the wheel 30.

Optionally, the first mud guard 11 is an arc-shaped plate-shaped structure, which extends along the circumferential direction of the wheel 30, so as to achieve a better mud guard effect, and the overall structure is more beautiful.

As shown in fig. 1-6, the wheelchair further includes a powertrain 100. The powertrain 100 further includes a power mechanism 20. Illustratively, the power mechanism 20 is an electric motor. The output end of the power mechanism 20 is connected with the wheel 30 to drive the wheel 30 to rotate, so as to realize the forward movement or the backward movement of the wheelchair. The second mudguard portion 12 is detachably connected with the housing 3 of the power mechanism 20, so that the mudguard portion 10 is rotatably connected with the wheel 30.

Alternatively, the second fender portion 12 is a partially cut fan-shaped structure, and the center of the fan-shaped structure is the rotation center of the wheel 30. The reference plane is perpendicular to the plane of the fan-shaped structure and contains an angular bisector of a central angle of the fan-shaped structure. The second fender mud portion 12 includes curved link, and this curved link keeps off mud portion 12 for the second and keeps away from the one end of first fender mud portion 11. The arc-shaped connecting end is an arc section taking the circle center of the sector as the circle center. The mounting hole set 121 is disposed at the arc-shaped connecting end to connect the second mud blocking part 12 with the housing 3 of the power mechanism 20.

In the present embodiment, as shown in fig. 8 and 13, two mounting hole groups 121 are provided. For convenience of description, two mounting hole groups 121 are set as a first mounting hole group and a second mounting hole group, respectively; setting two mounting holes 1211 in the first mounting hole group as a first mounting hole I and a first mounting hole II respectively; the two mounting holes 1211 in the second mounting hole group are set as the first mounting hole and the second mounting hole, respectively. The four mounting holes 1211 in the two mounting hole groups 121 are spaced apart in the extending direction of the arc-shaped connection end, wherein the first mounting hole i and the first mounting hole ii are located between the second mounting hole i and the second mounting hole ii. The first mounting hole I and the first mounting hole II are symmetrically arranged about the reference plane, and the second mounting hole I and the second mounting hole II are also symmetrically arranged about the reference plane. The minimum distance between the first mounting hole I and the second mounting hole II is smaller than the minimum distance between the first mounting hole I and the second mounting hole II.

For example, when the fender is mounted on a left wheel, the fender body 1 is detachably connected with the shell 3 of the power mechanism 20 through the first mounting hole and the second mounting hole; when the fender is arranged on a right wheel, the fender body 1 is detachably connected with the shell 3 of the power mechanism 20 through the first mounting hole II and the second mounting hole II.

Obviously, in other embodiments, the first mounting hole group and the second mounting hole group may be spaced in a direction parallel to the reference plane, i.e., the minimum distance of the two mounting holes 1211 in the first mounting hole group is equal to the distance of the two mounting holes 1211 in the second mounting hole group.

Optionally, the first fastening member passes through the central hole and is detachably connected with the housing 3 of the power mechanism 20; and/or the second fastening member passes through one of the mounting holes 1211 of the mounting hole group 121 and is detachably coupled to the housing 3 of the power mechanism 20. Exemplarily, the first fastener and the second fastener are bolts, the materials are easily obtained, the installation is convenient, and the connection is firm.

In this embodiment, as shown in fig. 9 to 12, the fender body 1 includes two reflector mounting locations 111, the two reflector mounting locations 111 are symmetrically disposed with respect to the reference plane, and the reflector 2 is disposed at one of the two reflector mounting locations 111. For convenience of description, the two reflector mounting locations 111 are respectively set as a first reflector mounting location and a second reflector mounting location. For the fender 10 mounted on the left wheel, exemplarily, the first reflector mounting position is located at the rear side of the fender body 1, the second reflector mounting position is located at the front side of the fender body 1, the reflector 2 is arranged at the first reflector mounting position, and the reflector 2 is not arranged at the second reflector mounting position; for the fender 10 installed on the wheel on the right side, the second reflection piece installation position is located on the rear side of the fender body 1, the first reflection piece installation position is located on the front side of the fender body 1, the second reflection piece installation position is provided with the reflection piece 2, and the first reflection piece installation position is not provided with the reflection piece 2.

The rear side of the fender body 1 is provided with the light reflecting sheet 2, so that pedestrians or vehicles behind the wheelchair can be warned conveniently. In order to adapt to the situation that the same fender 10 can be matched with the left wheel 30 and the right wheel 30, two reflector mounting positions 111 which are symmetrical relative to a reference plane are further arranged, the reflector 2 is exchanged on the left fender 10 and the right fender 10, and the assembly efficiency is further improved.

Preferably, the reflector mounting position 111 is a groove disposed on the fender body 1, and the reflector 2 is disposed in the groove. Set the structure of recess with reflector panel installation position 111, in the reflector panel 2 embedding recess for reflector panel 2 is difficult for droing from fender body 1, and the guarantee safety of traveling.

In this embodiment, the groove is disposed on the first mud guard 11 and penetrates the edge of the first mud guard 11, so as to facilitate installation of the light-reflecting sheet 2.

Preferably, the side of the reflector 2 facing away from the groove bottom of the groove is flush with the surface of the fender body 1. This design can be after installation reflector panel 2, and the surperficial level of fender body 1 does not have the evagination structure, and is pleasing to the eye and not occupation space.

Exemplarily, the reflector 2 is bonded to the fender body 1 through bonding glue, and the connection is firm without damaging the structural integrity of the reflector 2 and the fender body 1. Or, the reflector 2 is connected with the fender body 1 through a threaded connecting piece, so that materials are easy to obtain, the assembly and disassembly are convenient, and the reflector 2 is convenient to replace.

Optionally, the fender body 1 is integrally formed by injection molding, the groove is formed in the fender body 1 during injection molding, the manufacturing process is simple, and the production efficiency is high.

As shown in fig. 1 to 6, the present embodiment further provides a power assembly 100, which includes a wheel 30, a power mechanism 20, and the fender 10. The output end of the power mechanism 20 is connected with the wheel 30 to drive the wheel 30 to rotate, so as to realize the walking of the wheelchair. The fender 10 is provided inside the wheel 30, and prevents a driver and muddy water, sand, stone, etc. thrown off from the wheel 30 from splashing and dirtying. Illustratively, the wheels 30 include two front wheels and two rear wheels. Two rear wheels are both connected with a power mechanism 20, the rear wheels are driving wheels, and the front wheels are driven wheels. A fender 10 is preferably provided on the inner side of each of the left and right rear wheels. Of course, in other embodiments, the fender 10 may be provided on the inner side of both the left and right front wheels.

In one embodiment, as shown in fig. 5-8 and 13, the powertrain 100 further includes a first positioning member 4. Two positioning grooves 122 are formed in the fender body 1, and the two positioning grooves 122 are symmetrical with respect to a reference plane. The fender body 1 is clamped with the first positioning piece 4 through one of the two positioning grooves 122, so that the mounting and positioning of the fender body 1 on the shell 3 of the power mechanism 20 are realized. Powertrain 100 also illustratively includes a suspension 6. The housing 3 of the power mechanism 20 is provided with a coupling hole through which the first bolt passes and is coupled to the suspension 6. The first positioning element 4 comprises the head of a first bolt. In this embodiment, the positioning groove 122 is provided at the arc-shaped connecting end of the second mud blocking portion 12, and the positioning groove 122 is used for avoiding the head of the first bolt, so as to simultaneously realize the installation and positioning of the mud blocking body 1 and the power mechanism 20.

In another embodiment, the power assembly 100 further includes a second positioning member 5, the fender body 1 is provided with a central groove 123, the central groove 123 is symmetrical with respect to the reference plane, and the second positioning member 5 is snapped into the central groove 123, so as to achieve the installation and positioning of the fender body 1 on the housing 3 of the power mechanism 20. Illustratively, the power mechanism 20 is provided with a prepared hole 31, and a second bolt penetrates through the prepared hole 31. The housing 3 of the power mechanism 20 is connected to the rest of the wheelchair by a second bolt. The second positioning member 5 comprises the head of a second bolt. In this embodiment, the central groove 123 is opened in the middle of the arc-shaped connecting end of the second mud guard portion 12, and the central groove 123 is used for avoiding the head of the second bolt and simultaneously realizing the installation and positioning of the mud guard body 1 and the power mechanism 20.

The present embodiment further provides a wheelchair including the power assembly 100.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (12)

1. A fender is arranged on the inner side of a wheel (30), and is characterized by comprising a fender body (1), wherein the fender body (1) is symmetrical relative to a reference surface, the reference surface is a section of the fender body (1), and the reference surface is perpendicular to a mud blocking surface of the fender body (1);

the fender body (1) is provided with a central hole, the axis of the central hole is positioned on the reference surface, and the fender body (1) is configured to be in rotary connection with the wheel (30) through the central hole; and/or the presence of a gas in the gas,

the fender body (1) is provided with at least one mounting hole group (121), the mounting hole group (121) comprises two mounting holes (1211), the two mounting holes (1211) are symmetrically arranged relative to the reference plane, and the fender body (1) is configured to be connected with the wheel (30) in a rotating mode through one of the two mounting holes (1211).

2. The fender of claim 1, wherein the fender body (1) is provided with two mounting hole groups (121), the two mounting hole groups (121) are respectively a first mounting hole group and a second mounting hole group, and the minimum distance between the two mounting holes (1211) of the first mounting hole group is smaller than or equal to the minimum distance between the two mounting holes (1211) of the second mounting hole group.

3. Mudguard according to claim 1, characterized in that the mudguard body (1) comprises two reflector mounting positions (111), two reflector mounting positions (111) being arranged symmetrically with respect to the reference plane, one reflector (2) being arranged in each of the two reflector mounting positions (111).

4. A fender according to claim 3, characterised in that the reflector mounting location (111) comprises a recess provided on the fender body (1) in which the reflector (2) is provided.

5. A fender according to claim 4, characterised in that the side of the reflector (2) facing away from the bottom of the recess is flush with the surface of the fender body (1).

6. A fender according to any one of claims 1 to 5, characterised in that the fender body (1) comprises a first fender portion (11) and a second fender portion (12) connected, the first fender portion (11) being arranged to be located above the wheel (30), the second fender portion (12) being arranged to be located inside the wheel (30).

7. A powertrain comprising a wheel (30) and a fender according to any of claims 1 to 6 rotatably attached to the inside of the wheel (30).

8. The power assembly according to claim 7, further comprising a power mechanism (20), wherein an output end of the power mechanism (20) is connected with the wheel (30), and the fender body (1) is connected with a shell (3) of the power mechanism (20) through the central hole and/or the mounting hole group (121).

9. The powertrain assembly of claim 8, further comprising a locating assembly for locating the fender in place on the housing (3) of the powertrain (20).

10. The powertrain of claim 9,

the positioning assembly comprises a first positioning piece (4), two positioning grooves (122) are formed in the fender body (1), the two positioning grooves (122) are symmetrical relative to the reference surface, and the fender body (1) is clamped with the first positioning piece (4) through one of the two positioning grooves (122); and/or the presence of a gas in the gas,

the fender comprises a fender body (1), and is characterized in that the positioning assembly comprises a second positioning piece (5), a central groove (123) is formed in the fender body (1), the central groove (123) is symmetrical with the reference surface, and the fender body (1) is connected with the second positioning piece (5) in a clamping mode through the central groove (123).

11. A powertrain according to claim 10, characterized in that the positioning assembly comprises the first positioning element (4) and the second positioning element (5);

the power assembly further comprises a suspension (6), the shell (3) of the power mechanism (20) is connected with the suspension (6) through a first bolt, and the first positioning piece (4) comprises a head of the first bolt;

the shell (3) of the power mechanism (20) is provided with a preformed hole (31), a second bolt penetrates through the preformed hole (31), and the second positioning piece (5) comprises a head of the second bolt.

12. A wheelchair comprising a locomotion assembly according to any one of claims 7-11.

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