CN218793856U - Front wheel assembly and model car - Google Patents

Abstract

The utility model provides a front wheel subassembly and model car. The front wheel assembly comprises a chassis, a rocker arm, a connecting piece, a front wheel, a first elastic piece, a second elastic piece, a first adjusting piece and a second adjusting piece; the left end and the right end of the rocker arm can swing up and down relative to the chassis, and the front wheels are arranged at the left end and the right end of the rocker arm through connecting pieces; two ends of the first elastic part are respectively connected with the rocker arm and the first adjusting part, and two ends of the second elastic part are respectively connected with the chassis and the second adjusting part; the first adjustment member is movable relative to the chassis to vary an initial degree of compression of the first resilient member, and the second adjustment member is movable relative to the chassis to vary an initial degree of compression of the second resilient member. The front wheel assembly and the model vehicle have high adjustability.

Description

Front wheel assembly and model car

Technical Field

The utility model relates to a model car technical field especially relates to a front wheel subassembly and model car.

Background

Besides the racing type model cars, the model car for the main play of the drifting play is also a type of model car commonly seen in the market. However, the existing micro-scale model car has poor adjustability of the suspension system at the front wheel, which is not beneficial for the user to adjust the performance of the model car so as to adjust the drift effect of the model car.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a front wheel subassembly, the suspension structure controllability is high.

The utility model discloses still provide a model car including above-mentioned front wheel subassembly.

According to the utility model discloses a front wheel subassembly of first aspect embodiment includes: a chassis; the rocker arm is movably connected with the front end of the chassis, and the left end and the right end of the rocker arm can swing up and down relative to the chassis; the two connecting pieces are respectively connected to the left end and the right end of the rocker arm and can move up and down relative to the rocker arm; the two front wheels are respectively and rotatably connected with different connecting pieces; the two first elastic pieces are respectively positioned at the left side and the right side of the swinging axis of the rocker arm and are in a compressed state; the two second elastic pieces are arranged, the bottom ends of the second elastic pieces are connected with the connecting piece, and the second elastic pieces are in a compressed state; the first adjusting piece is arranged on the chassis, the top end of the first elastic piece is connected with the first adjusting piece, and the first adjusting piece can move relative to the chassis to change the initial compression degree of the first elastic piece; the second adjusting piece is arranged on the chassis, the top end of the second elastic piece is connected with the second adjusting piece, and the second adjusting piece can move relative to the chassis to change the initial compression degree of the second elastic piece.

According to the utility model discloses front wheel subassembly of first aspect embodiment has following beneficial effect at least: for the front wheel component provided by the utility model, the first adjusting part can be adjusted to adjust the anti-rolling performance, and the second elastic part can be adjusted to adjust the shock-absorbing effect of the front wheel; the utility model discloses a front wheel subassembly adjustability is high, thereby the person of facilitating the use adjusts the performance of front wheel suspended structure's performance regulation model car.

According to some embodiments of the invention, the chassis has a first mounting hole in which at least a portion of the first adjusting member and a top end of the first elastic member are disposed; the first adjusting piece is in threaded connection with the hole wall of the first mounting hole, and the bottom end of the first adjusting piece is connected with the top end of the first elastic piece; the first adjusting member is rotatable relative to the chassis to change a height of a bottom end of the first adjusting member.

According to some embodiments of the invention, the chassis has a second mounting hole, at least a portion of the second adjusting member and a top end of the second elastic member are disposed in the second mounting hole; the second adjusting piece is in threaded connection with the hole wall of the second mounting hole, and the bottom end of the second adjusting piece is connected with the top end of the second elastic piece; the second adjusting member is rotatable relative to the chassis to change a height of a bottom end of the second adjusting member.

According to some embodiments of the invention, the chassis has a positioning groove and a positioning projection, the positioning projection being arranged in the positioning groove; the left side surface of the positioning bulge and the left side wall surface of the positioning groove are provided with a gap, and the right side surface of the positioning bulge and the right side wall surface of the positioning groove are provided with a gap, so that the positioning bulge can swing in the positioning groove.

According to some embodiments of the utility model, the chassis has the reference column, the rocking arm has the locating hole, the reference column is worn to establish the locating hole, the reference column with the pore wall of both sides is supported and is held around the locating hole, the reference column with the pore wall interval of the left and right sides of locating hole sets up.

According to some embodiments of the present invention, the connecting member includes a main body portion, a first insertion portion connected to a bottom of the main body portion and protruding downward, and a second insertion portion connected to a top of the main body portion and protruding upward; the rocker arm is provided with a third mounting hole, the first insertion part can be slidably arranged in the third mounting hole in a penetrating mode, the second insertion part can be slidably arranged in the second mounting hole in a penetrating mode and is connected with the second elastic piece, and the front wheel is rotatably connected to the main body part.

According to some embodiments of the invention, the toe-out angle of the front wheel is 5 degrees.

According to some embodiments of the invention, the connection piece has a caster angle of 5 degrees with respect to the axis of rotation of the chassis.

According to some embodiments of the invention, the front wheel comprises a hub and a tire, the tire surrounds a periphery of the hub, and the tire is made of metal.

According to the utility model car of the second aspect embodiment of the utility model, including the front wheel subassembly of the first aspect embodiment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

fig. 1 is a schematic view of a model car according to the present invention;

fig. 2 is a perspective view of the front wheel assembly of the present invention;

FIG. 3 is an exploded view of the front wheel assembly of the present invention;

FIG. 4 is a schematic view of a rocker arm of the front wheel assembly of the present invention;

FIG. 5 is a front view of the front wheel assembly of the present invention;

FIG. 6 is a schematic view of the engagement relationship between the first resilient member and the first adjustment member;

FIG. 7 is a schematic view of the fitting relationship between the second elastic member and the second adjustment key;

FIG. 8 is a schematic view showing a fitting relationship between a positioning post and a positioning hole;

FIG. 9 is a schematic view of the assembly of the attachment member, chassis and steering member;

fig. 10 is a schematic view of a drive mechanism and a steering mechanism of the model car.

Reference numerals: 100-model car, 101-car body, 102-front wheel, 103-rear wheel, 201-upper cover, 202-base, 203-chassis, 204-rocker, 205-positioning projection, 206-positioning groove, 207-second adjusting part, 208-first adjusting part, 209-connecting part, 210-tire, 211-wheel hub, 212-upper projection, 213-lower projection, 214-upper positioning groove, 215-lower positioning groove, 301-shaft part, 302-positioning column, 303-second elastic part, 304-first elastic part, 401-positioning hole, 402-third mounting hole, 601-first mounting hole, 701-second mounting hole, 901-main body part, 902-second plug part, 903-first plug part, 904-third plug part, 905-connecting rod, 1001-steering motor, and 1002-driving motor.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The utility model provides a front wheel subassembly, combine fig. 2, fig. 3 and fig. 5, the front wheel subassembly includes chassis 203, rocking arm 204, front wheel 102, connecting piece 209, first elastic component 304, second elastic component 303, first regulating part 208 and second regulating part 207.

Referring to fig. 2 and 3, the chassis 203 may include an upper cover 201 and a base 202, the upper cover 201 and the base 202 may be detachably coupled (e.g., by screws), and the swing arm 204 may be installed in a cavity formed after the upper cover 201 and the base 202 are coupled.

Referring to fig. 5, there are two front wheels 102 and two connecting members 209, the two connecting members 209 are respectively connected to the left and right ends of the swing arm 204, and each front wheel 102 is connected to one connecting member 209, so that the two front wheels 102 are mounted on the left and right ends of the swing arm 204. Referring to fig. 5, the swing arm 204 is swingable with respect to the chassis 203, and more specifically, both left and right ends of the swing arm 204 are swingable up and down with respect to the chassis 203.

The number of the first elastic members 304 is also two, the top end of the first elastic member 304 is connected to the first adjustment member 208, the bottom end of the first elastic member 304 is connected to the rocker arm 204, and the first elastic member 304 is under compression. The two first elastic members 304 are located on the left and right sides of the swing axis of the rocker arm 204, respectively. Referring to fig. 5, the swing axis of the rocker arm is a horizontal line extending in the front-rear direction and passing through point a (the front-rear direction in fig. 5 corresponds to a direction perpendicular to the sheet of fig. 5).

Referring to fig. 7, two second elastic members 303 are also provided, two second elastic members 303 are respectively connected to one second adjusting member 207, and two second elastic members 303 are respectively connected to one connecting member 209. The bottom end of the second elastic member 303 is connected to the connecting member 209, the top end of the second elastic member 303 is connected to the second adjusting member 207, and the second elastic member 303 is in a compressed state.

The first adjustment member 208 and the second adjustment member 207 are both mounted to the chassis 203, and the first adjustment member 208 and the second adjustment member 207 are both movable relative to the chassis 203 to change the initial compression state of the first elastic member 304 and the initial compression state of the second elastic member 303. It should be noted that when the front wheel assembly (or model car 100) is placed on a horizontal plane with the front wheel 102 aligned back, the first elastic member 304 and the second elastic member 303 are both in an initial compressed state.

When the model car 100 turns, the chassis 203 will roll relative to the swing arm 204 due to the shift of the center of gravity, and the elastic force of the first elastic member 304 can suppress the roll of the chassis 203. For example, referring to fig. 5, when the model car 100 turns right, the chassis 203 rolls to the left (i.e., the left side of the chassis 203 is lower and the right side is higher), the compression degree of the first elastic member 304 on the left side is increased, the compression degree of the first elastic member 304 on the right side is decreased accordingly, and the elastic force of the first elastic member 304 on the left side urges the chassis 203 to return relative to the swing arm 204, so as to suppress the rolling. Adjusting the initial compression state of the first elastic members 304 on both sides can change the elastic force of the first elastic members 304 for resisting the roll of the chassis 203, thereby adjusting the anti-roll performance of the chassis 203.

During the running of the model car 100, the front wheel 102 moves up and down due to the uneven ground, the elastic force of the second elastic member 303 is used to block the connecting member 209 and the front wheel 102 connected to the connecting member 209 from moving up, i.e. the second elastic member 303 has a shock absorbing function. By adjusting the initial compression state of the second elastic member 303, the elastic force of the second elastic member 303 for shock absorption can be adjusted, thereby adjusting the shock absorption effect of the front wheel 102.

Therefore, for the front wheel assembly provided by the present invention, the first adjusting member 208 can be adjusted to adjust the anti-roll performance, and the second elastic member 303 can be adjusted to adjust the shock absorbing effect of the front wheel 102; the utility model discloses a parameter that the front wheel subassembly can supply to adjust is more, thereby the person of facilitating the use adjusts the performance of model car 100 of front wheel suspended structure's performance.

In some embodiments, the first adjustment member 208 is provided as a screw; the user may turn the screw to change the initial compression state of the first resilient element 304. Specifically, referring to fig. 6, the chassis 203 has a first mounting hole 601 (the first mounting hole 601 may be specifically disposed at the upper cover 201), the first adjusting member 208 is screwed with a hole wall of the first mounting hole 601, at least a portion of the first adjusting member 208 and a top end of the first elastic member 304 are disposed in the first mounting hole 601, and a bottom end of the first adjusting member 208 abuts against a top end of the first elastic member 304. If the first adjustment element 208 is rotated and the first adjustment element 208 is moved downward, the initial compression degree of the first elastic element 304 is increased; if first adjustment member 208 is rotated in the opposite direction and first adjustment member 208 is moved upward, the initial compression of first resilient member 304 is reduced.

Similarly, the second adjustment member 207 may also be provided as a screw. Referring to fig. 7, the chassis 203 includes a second mounting hole 701, the second adjusting member 207 is in threaded connection with a hole wall of the second mounting hole 701, at least a portion of the second adjusting member 207 and a top end of the second elastic member 303 are disposed in the second mounting hole 701, and a bottom end of the second adjusting member 207 abuts against a top end of the second elastic member 303. If the second adjusting member 207 is rotated and the second adjusting member 207 is moved downward, the initial compression degree of the second elastic member 303 is increased; if the second adjustment member 207 is rotated reversely and the second adjustment member 207 is moved upward, the initial compression degree of the second elastic member 303 is reduced.

Referring to fig. 5, the chassis 203 has a positioning groove 206, the swing arm 204 has a positioning projection 205, and the positioning projection 205 is disposed in the positioning groove 206. A gap is formed between the left side surface of the positioning projection 205 and the left side wall surface of the positioning groove 206, and a gap is formed between the right side surface of the positioning projection 205 and the right side wall surface of the positioning groove 206, thereby leaving a space for the positioning projection 205 to swing. When the swing arm swings, the positioning boss 205 can swing in the positioning groove 206.

Referring to fig. 4 and 5, in some embodiments, two positioning protrusions 205 may be provided, and two positioning grooves 206 may be provided; two positioning protrusions 205 are respectively positioned on the upper and lower sides of the rocker arm 204. For convenience of description, the positioning projection 205 located above is referred to as an upper projection 212, the positioning projection 205 located below is referred to as a lower projection 213, the positioning groove 206 located above is referred to as an upper positioning groove 214, and the positioning groove 206 located below is referred to as a lower positioning groove 215. In order to facilitate the swing of the positioning protrusion 205, the widths of the upper positioning groove 214 and the upper protrusion 212 are gradually reduced from bottom to top, and the widths of the lower positioning groove 215 and the lower protrusion 213 are gradually reduced from top to bottom. The width here means a dimension in the left-right direction.

It should be noted that the top end of the upper protrusion 212 is not completely clamped at the narrowest width position of the upper positioning slot 214, and when the rocker arm 204 swings, the top end of the upper protrusion 212 has a certain left-right movement amplitude; similarly, the bottom end of the lower protrusion 213 is not completely clamped to the narrowest width of the lower positioning slot 215, and the bottom end of the lower protrusion 213 moves left and right with a certain amplitude when the rocker arm 204 swings.

To facilitate the assembly of the chassis 203 with the swing arm 204, the chassis 203 further has a positioning post 302, and the swing arm 204 has a positioning hole 401. Referring to fig. 4, a positioning hole 401 is provided at the center of the swing arm 204 in the left-right direction, and referring to fig. 6, the positioning post 302 is pierced through the positioning hole 401. Referring to fig. 8, the positioning column 302 abuts against the front and rear side hole walls of the positioning hole 401 to ensure the stability of the front and rear positions of the rocker arm 204; referring to fig. 6, positioning pillars 302 are spaced from the hole walls on the left and right sides of positioning hole 401, so that a space for swing of rocker arm 204 is left between the hole walls of positioning hole 401 and positioning pillars 302.

Referring to fig. 3, locating post 302 may be part of base 202. After the swing arm 204 is sleeved on the periphery of the positioning column 302 from top to bottom, the user may connect the upper cover 201 with the base 202 (e.g., by screwing), so that the upper cover 201 abuts against the top end of the positioning column 302. Thus, the swing arm 204 is disposed between the upper cover 201 and the base 202, and the positioning column 302 penetrates through the positioning hole 401. In the case where the positioning projection 205 is provided with two and the positioning groove 206 is also provided with two, one of the positioning grooves 206 may be provided at the base 202 and the other positioning groove 206 may be provided at the upper cover 201.

Referring to fig. 9, the connector 209 includes a main body portion 901, a first mating portion 903, and a second mating portion 902. The first mating part 903 is connected to the bottom of the main body part 901 and projects downward, and the second mating part 902 is connected to the top of the main body part 901 and projects upward. The rocker arm 204 has a third mounting hole 402, the first insertion portion 903 slidably penetrates through the third mounting hole 402, the second insertion portion 902 slidably penetrates through the second mounting hole 701, and the second insertion portion 902 is used for being connected with the second elastic member 303. The front wheel 102 is rotatably connected to the main body 901, for example, the front wheel assembly further includes a shaft 301, the shaft 301 penetrates through the front wheel 102 and the main body 901, and the front wheel 102 can rotate around the shaft 301 and rotate relative to the connecting member 209. The connecting element 209 further comprises a third plug-in part 904, wherein the third plug-in part 904 is used for connecting with a steering mechanism, and the steering mechanism enables the two connecting elements 209 to synchronously rotate leftwards or rightwards, so that synchronous steering of the two front wheels 102 can be realized.

In some embodiments, a front wheel kingpin caster arrangement may be employed in order to improve vehicle handling. Specifically, the connection 209 has a backward tilt angle of 5 degrees with respect to the rotation axis of the chassis 203. That is, referring to fig. 9, an included angle between a rotation axis (corresponding to the straight line L1) and a vertical straight line (corresponding to the straight line L2) when the connection member 209 rotates relative to the chassis is 5 degrees, and the top end of the first insertion part 903 is located behind the bottom end of the first insertion part 903.

In some embodiments, if model car 100 is a model car 100 for primary play wandering play, the toe-out angle of front wheels 102 may be 5 degrees in order to improve turning performance of model car 100 and to make model car 100 more susceptible to wandering.

In some embodiments, the outer portion of the front wheel 102 may be made of metal. Specifically, referring to fig. 2, the front wheel 102 includes a hub 211 and a tire 210, the tire 210 being attached to an outer periphery of the hub 211, the tire 210 being made of metal; more specifically, the tire 210 may be made of copper. This arrangement lowers the center of gravity of front wheel 102, thereby lowering the center of gravity of model car 100 and improving the maneuverability of model car 100. In addition, compared with the peripheral part of the front wheel 102 made of rubber, the peripheral part of the front wheel 102 made of metal can also reduce the friction force between the front wheel 102 and the ground, so that the model car 100 can drift conveniently. Similarly, the peripheral portion of the rear wheel 103 of the model car 100 may also be provided in a metallic material, which is not described in detail herein.

The utility model also provides a model car 100, model car 100 includes the front wheel suspended structure in above-mentioned arbitrary embodiment.

Specifically, the model car 100 may further include a steering mechanism, rear wheels 103, a car body 101, a driving mechanism, a battery, and an electronic control main board. The driving mechanism is mounted on the chassis 203 and is used for driving the rear wheel 103 to rotate, for example, referring to fig. 10, the driving mechanism includes a driving motor 1002, the driving motor 1002 and the rear wheel 103 are driven by a gear, a worm, and other transmission components, and the driving motor 1002 drives the rear wheel 103 to rotate. The electronic control main board can be installed above the chassis 203, and the vehicle body 101 is connected with the chassis 203 and covers the electronic control main board. The battery is electrically connected with the electric control main board (both the electric control main board and the battery are not specifically shown), and the battery is used for supplying power to the electric control main board, the driving mechanism and the steering mechanism. The electric control main board can receive the remote control signal and enables the driving mechanism and the steering mechanism to operate.

Referring to fig. 10, the steering mechanism may include a steering motor 1001 and a connecting rod 905, the connecting rod 905 is rotatably connected to the chassis 203, two ends of the connecting rod 905 are respectively connected to the two third inserting portions 904, the steering motor 1001 and the connecting rod 905 are driven by a gear, a worm, and other driving components, and the steering motor 1001 drives the connecting rod 905 to rotate, so that the two front wheels 102 are synchronously steered.

If the model car 100 is playing a wandering game, the model car 100 may further include a gyroscope (not shown) mounted on and in communication with the electronic control motherboard. In the steering process, the electric control main board can correct the direction according to the signal of the gyroscope, so that the model car 100 can conveniently do drifting action. The operation principle of the gyroscope in the drift model car 100 belongs to the well-known technology in the field, and is not described in detail here.

In the description of the present invention, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (10)

1. A front wheel assembly, comprising:

a chassis;

the rocker arm is movably connected with the front end of the chassis, and the left end and the right end of the rocker arm can swing up and down relative to the chassis;

the two connecting pieces are respectively connected to the left end and the right end of the rocker arm and can move up and down relative to the rocker arm;

the two front wheels are respectively and rotatably connected with different connecting pieces;

the two first elastic pieces are respectively positioned at the left side and the right side of the swinging axis of the rocker arm and are in a compressed state;

the two second elastic pieces are arranged, the bottom ends of the second elastic pieces are connected with the connecting piece, and the second elastic pieces are in a compressed state;

the first adjusting piece is arranged on the chassis, the top end of the first elastic piece is connected with the first adjusting piece, and the first adjusting piece can move relative to the chassis to change the initial compression degree of the first elastic piece;

the second adjusting piece is arranged on the chassis, the top end of the second elastic piece is connected with the second adjusting piece, and the second adjusting piece can move relative to the chassis to change the initial compression degree of the second elastic piece.

2. The front wheel assembly of claim 1, wherein the chassis has a first mounting hole in which at least a portion of the first adjusting member and a top end of the first resilient member are disposed;

the first adjusting piece is in threaded connection with the hole wall of the first mounting hole, and the bottom end of the first adjusting piece is connected with the top end of the first elastic piece; the first adjusting member is rotatable relative to the chassis to change a height of a bottom end of the first adjusting member.

3. The front wheel assembly of claim 1, wherein the chassis has a second mounting hole in which at least a portion of the second adjusting member and a top end of the second resilient member are disposed;

the second adjusting piece is in threaded connection with the hole wall of the second mounting hole, and the bottom end of the second adjusting piece is connected with the top end of the second elastic piece; the second adjusting member is rotatable relative to the chassis to change a height of a bottom end of the second adjusting member.

4. The front wheel assembly of claim 1, wherein the chassis has a locating slot and a locating boss, the locating boss disposed in the locating slot;

the left side surface of the positioning bulge and the left side wall surface of the positioning groove are provided with a gap, and the right side surface of the positioning bulge and the right side wall surface of the positioning groove are provided with a gap, so that the positioning bulge can swing in the positioning groove.

5. The front wheel assembly as claimed in claim 1, wherein the chassis has positioning posts, the rocker arm has positioning holes, the positioning posts are inserted into the positioning holes, the positioning posts abut against the front and rear hole walls of the positioning holes, and the positioning posts are spaced apart from the left and right hole walls of the positioning holes.

6. The front wheel assembly of claim 3, wherein the connector includes a main body portion, a first socket portion connected to a bottom of the main body portion and protruding downward, and a second socket portion connected to a top of the main body portion and protruding upward;

the rocker arm is provided with a third mounting hole, the first inserting part is slidably arranged in the third mounting hole in a penetrating manner, the second inserting part is slidably arranged in the second mounting hole in a penetrating manner and connected with the second elastic piece, and the front wheel is rotatably connected to the main body part.

7. The front wheel assembly of claim 1, wherein the toe-out angle of the front wheel is 5 degrees.

8. The front wheel assembly of claim 1, wherein the connector has a caster angle of 5 degrees relative to an axis of rotation of the chassis.

9. The front wheel assembly of claim 1, wherein the front wheel includes a hub and a tire, the tire surrounds a periphery of the hub, and the tire is made of metal.

10. Model car, characterized in that it comprises a front wheel assembly according to any one of claims 1 to 9.

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