CN212685838U

CN212685838U - Steering mechanism of balance car and balance car

Info

Publication number: CN212685838U
Application number: CN202020941124.0U
Authority: CN
Inventors: 李利锁; 王志鹏; 张令
Original assignee: Ninebot Beijing Technology Co Ltd
Current assignee: Ninebot Beijing Technology Co Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2021-03-12
Anticipated expiration: 2029-07-03
Also published as: CN213384591U; CN210912738U

Abstract

The utility model discloses a steering mechanism and balance car of balance car, the steering mechanism of balance car includes: the shell is suitable for being arranged on a vehicle body of the balance vehicle and is provided with an extending port; the rotating shaft extends into the shell from the extending opening, a sealing gap which is adjacent to and surrounds the extending opening is defined between the rotating shaft and the shell, and a waterproof medium is filled in the sealing gap. According to the utility model discloses steering mechanism of balance car has that waterproof nature is good, turn to advantages such as dependable performance, security height.

Description

Steering mechanism of balance car and balance car

The scheme is a divisional application with the application number of 201921030022.7, the application date of 2019, 07-03.4 and the name of a utility model, namely 'steering mechanism of balance car and balance car'.

Technical Field

The utility model belongs to the technical field of the balance car technique and specifically relates to a steering mechanism of balance car and have the balance car of steering mechanism of balance car.

Background

In a balance car in the related art, a user turns by stepping on a pedal plate through a specific action, the pedal plate is connected with a steering mechanism through a foot control rod, and a controller controls left and right wheels according to a steering signal of the steering mechanism, so that the balance car turns. However, in some special environments or weather, water easily enters the steering mechanism, and the generation and transmission of steering signals are influenced, so that the reliability of the steering performance is influenced, and the safety of the balance car is further influenced.

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, an object of the utility model is to provide a steering mechanism of balance car, this steering mechanism of balance car have waterproof nature good, turn to advantages such as dependable performance, can improve the security.

The utility model discloses still provide a steering mechanism's balance car with above-mentioned balance car.

According to the utility model discloses an embodiment of first aspect provides a steering mechanism of balance car, the steering mechanism of balance car includes: the shell is suitable for being arranged on a vehicle body of the balance vehicle and is provided with an extending port; the rotating shaft extends into the shell from the extending opening, a sealing gap which is adjacent to and surrounds the extending opening is defined between the rotating shaft and the shell, and a waterproof medium is filled in the sealing gap.

According to the utility model discloses steering mechanism of balance car has that waterproof nature is good, turn to advantages such as dependable performance, security height.

According to some embodiments of the present invention, the housing and one of the shafts is provided with a spigot protrusion and the other is provided with a spigot groove, the spigot protrusion fitting in the spigot groove and defining the sealing gap therebetween.

Furthermore, the spigot protrusion is arranged on the inner circumferential surface of the shell and extends in a ring shape along the circumferential direction of the inner circumferential surface of the shell, and the outer circumferential surface of the rotating shaft extends along the circumferential direction and is recessed along the radial direction to form the spigot groove.

Further, the seal gap includes: an outer ring portion formed between an outer sidewall of the spigot boss and an outer sidewall of the spigot slot; an inner ring portion formed between an inner sidewall of the spigot protrusion and an inner sidewall of the spigot groove; the connecting ring portion is formed between the top wall of the spigot protrusion and the bottom wall of the spigot groove, and the connecting ring portion is communicated with the outer ring portion and the inner ring portion respectively.

Further, the central axis of outer ring portion, the central axis of interior ring portion, the central axis of connection ring portion and the central axis of pivot coincide each other, outer ring portion with interior ring portion parallel arrangement, connection ring portion perpendicular to outer ring portion with interior ring portion.

Further, the width of the inner ring portion is larger than the width of the outer ring portion.

According to some specific examples of the invention, the waterproof medium is butter.

According to some specific examples of the present invention, the rotating shaft is provided with a first stop ring and a second stop ring arranged at an interval along an axial direction thereof, the rotating shaft is sleeved with a first bearing and a second bearing, and the rotating shaft is supported in the housing through the first bearing and the second bearing; the first bearing is positioned on one side of the first stop ring, which faces away from the second stop ring, and the second bearing is positioned on one side of the second stop ring, which faces away from the first stop ring; the first stop ring is closer to the seal gap than the second stop ring, the first bearing is adjacent the entrance, and the seal gap extends from between the spigot protrusion and the spigot slot further between the first bearing and the housing.

Furthermore, the part of the rotating shaft, which is located between the first stop ring and the second stop ring, is constructed into a ball gap part, the ball gap part is provided with a curved surface and a plane, a spring plate is arranged in the shell, the spring plate is located between the first stop ring and the second stop ring, the middle part of the spring plate in the length direction is matched with the plane, and the shell is provided with an avoiding groove for the spring plate to deform when the ball gap part acts on the spring plate.

Furthermore, a damping slide sheet is arranged in the shell, and is located between the first stop ring and the second stop ring and matched with the curved surface.

According to some specific examples of the utility model, the steering mechanism of balance car still includes: the magnet fixing piece is arranged at one end, extending into the shell, of the rotating shaft and used for fixing the annular magnet; the Hall plate is arranged in the shell and is provided with a Hall sensor, and the Hall sensor extends into the annular magnet.

Furthermore, the position department that is close to the hall plate of casing is equipped with the line hole, the casing with inject the encapsulating space between the hall plate, the encapsulating space is located the hall plate with cross between the line hole, the encapsulating space intussuseption is filled with waterproof glue.

According to some specific examples of the invention, the housing comprises: a base; the upper cover, the upper cover with the base detachably installs, the upper cover with the base prescribes a limit to jointly the mouth that stretches into, sealed clearance forms the upper cover with between the pivot and the base with between the pivot.

Further, the upper cover and the balance car body are integrally formed.

According to the utility model discloses an embodiment of second aspect provides a balance car, the balance car includes the basis the utility model discloses an embodiment of first aspect the steering mechanism of balance car.

According to the utility model discloses balance car, through utilizing according to the utility model discloses an embodiment of first aspect balance car's steering mechanism have advantages such as turn to dependable performance, security height.

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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a steering mechanism of a balance car according to an embodiment of the present invention.

Fig. 2 is an exploded view of a steering mechanism of a balance car according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a steering mechanism of a balance car according to an embodiment of the present invention.

Fig. 4 is an enlarged view of the area a in fig. 3.

Reference numerals:

a vehicle body 10,

A shell 100, an inlet 101, a spigot bulge 102, an avoiding groove 103, a wire passing hole 104, a base 110, an upper cover 120,

The rotating shaft 200, the spigot slot 201, the first stop ring 210, the second stop ring 220, the spherical segment 230, the curved surface 231, the plane 232,

A seal gap 300, an outer ring portion 310, an inner ring portion 320, a connecting ring portion 330,

A first bearing 410, a second bearing 420,

A spring plate 510,

A damping slide sheet 610,

Magnet holder 710, hall plate 720, hall sensor 721, encapsulating space 730.

Detailed Description

Reference will now be made in detail to 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 function 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 is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more, and "a plurality" means one or more.

The following describes a steering mechanism of a balance car according to an embodiment of the present invention with reference to the drawings.

As shown in fig. 1 to 4, a steering mechanism of a balance car according to an embodiment of the present invention includes a housing 100 and a rotating shaft 200.

The housing 100 is suitable for being arranged on a vehicle body 10 of a balance vehicle, the housing 100 is provided with an extending port 101, the rotating shaft 200 extends into the housing 100 from the extending port 101, namely a part of the rotating shaft 200 extends into the interior of the housing 100 through the extending port 101, the rotating shaft 200 can rotate relative to the housing 100, the rotating shaft 200 is used for direction conversion connection, a sealing gap 300 is defined between the rotating shaft 200 and the housing 100, the sealing gap 300 is adjacent to and surrounds the extending port 101, a waterproof medium (not shown in the figure) is filled in the sealing gap 300, and the waterproof medium can be liquid, for example, grease.

According to the utility model discloses steering mechanism of balance car, through setting up seal clearance 300 between casing 100 and pivot 200, and seal clearance 300 is neighbouring and around stretching into mouth 101 setting, and further pack the water-proof medium in seal clearance 300, thereby can be in stretching into mouth 101 department, seal up waterproof to casing 100 and pivot 200, avoid in water gets into casing 100, and do not influence pivot 200 for the smooth and easy nature of rotation of casing 100, thereby improve the reliability of turning to the performance, in order to improve the security that the balance car travel.

Therefore, according to the utility model discloses the steering mechanism of balance car has that waterproof nature is good, turn to advantages such as dependable performance, security height.

In some embodiments of the present invention, as shown in fig. 3 and 4, a seam allowance protrusion 102 is disposed on one of the housing 100 and the rotating shaft 200, a seam allowance groove 201 is disposed on the other of the housing 100 and the rotating shaft 200, the seam allowance protrusion 102 is fitted in the seam allowance groove 201, and a sealing gap 300 is defined between the seam allowance protrusion 102 and the seam allowance groove 201, that is, the sealing gap 300 is defined between an outer wall of the seam allowance protrusion 102 and an inner wall of the seam allowance groove 201. Therefore, the stability of the relative position between the rotating shaft 200 and the housing 100 can be improved, the axial movement of the rotating shaft 200 can be prevented, the waterproof medium can be kept in the sealing gap 300, and the sealing and waterproof effects can be further improved.

For example, the spigot protrusion 102 is disposed on the inner circumferential surface of the housing 100 and extends in a ring shape along the circumferential direction of the inner circumferential surface of the housing 100, the outer circumferential surface of the rotating shaft 200 extends in the circumferential direction of the rotating shaft 200 and is recessed in the radial direction of the rotating shaft 200 to form the spigot groove 201, that is, the spigot groove 201 is disposed on the outer circumferential surface of the rotating shaft 200 and extends in a ring shape along the circumferential direction of the outer circumferential surface of the rotating shaft 200, and the fitting of the spigot protrusion 102 and the spigot groove 201 does not hinder the rotation of the rotating shaft 200.

In some specific examples of the present invention, as shown in fig. 4, the seal gap 300 includes an outer ring portion 310, an inner ring portion 320, and a connecting ring portion 330.

An outer ring portion 310 is formed between an outer side wall of the spigot boss 102 and an outer side wall of the spigot slot 201. The inner ring portion 320 is formed between the inner side wall of the spigot boss 102 and the inner side wall of the spigot groove 201. The connecting ring portion 330 is formed between the top wall of the spigot protrusion 102 and the bottom wall of the spigot groove 201, one end of the connecting ring portion 330 is connected to the inner peripheral edge of the outer ring portion 310, and the other end of the connecting ring portion 330 is connected to the inner peripheral edge of the inner ring portion 320, so that the connecting ring portion 330 is respectively communicated with the outer ring portion 310 and the inner ring portion 320. Wherein, the width of the inner ring portion 320 may be greater than the width of the outer ring portion 310, so as to further improve the sealing and waterproof effects.

It will be understood by those skilled in the art that the above interior and exterior are referenced to the interior and exterior facing the housing 100; the top wall of the spigot protrusion 102 means a wall of the spigot protrusion 102 opposite to the bearing surface in the height direction thereof; the bottom wall of the notch groove 201 means a wall of the notch groove 201 opposed to the opening in the depth direction thereof.

Further, the central axis of the outer ring portion 310, the central axis of the inner ring portion 320, the central axis of the connecting ring portion 330, and the central axis of the rotating shaft 200 coincide with each other, thereby ensuring smooth rotation of the rotating shaft 200, the outer ring portion 310 is disposed in parallel with the inner ring portion 320, and the connecting ring portion 330 is perpendicular to the outer ring portion 310 and the inner ring portion 320, whereby the waterproof medium is more stably held within the seal gap 300.

In some specific examples of the present invention, as shown in fig. 1-4, the housing 100 includes a base 110 and an upper cover 120.

The upper cover 120 is detachably mounted to the base 110 to facilitate the removal of internal components, the upper cover 120 and the base 110 together define the inlet 101, and the sealing gaps 300 are formed between the upper cover 120 and the rotary shaft 200 and between the base 110 and the rotary shaft 200.

Further, in order to simplify the assembly process and improve the structural reliability, the upper cover 120 is integrally formed with the body 10 of the balance car.

In some embodiments of the present invention, as shown in fig. 2 and 3, the rotating shaft 200 is provided with a first stop ring 210 and a second stop ring 220 arranged along the axial direction thereof at an interval, the rotating shaft 200 is sleeved with a first bearing 410 and a second bearing 420, the rotating shaft 200 is supported in the casing 100 through the first bearing 410 and the second bearing 420, and the first bearing 410 and the second bearing 420 can reduce the wear of the rotating shaft 200.

Wherein the first stop ring 210 is closer to the sealing gap 300 than the second stop ring 220, the first bearing 410 is located on a side of the first stop ring 210 facing away from the second stop ring 220, the second bearing 420 is located on a side of the second stop ring 220 facing away from the first stop ring 210, the first bearing 410 is stopped between the first stop ring 210 and the housing 100 to prevent axial movement of the first bearing 410, and the second bearing 420 is stopped between the second stop ring 220 and the housing 100 to prevent axial movement of the second bearing 420.

Further, as shown in fig. 4, in order to increase the seal waterproof area of the waterproof medium, the first bearing 410 is adjacent to the inlet port 101, and the seal gap 300 extends between the first bearing 410 and the housing 100, specifically, the seal gap 300 extends from between the spigot protrusion 102 and the spigot groove 201 further to between the end face of the first bearing 410 and the housing 100.

In some specific examples of the present invention, as shown in fig. 2 and 3, a portion of the rotating shaft 200 located between the first stop ring 210 and the second stop ring 220 is configured as a spherical segment 230, a cross section of the spherical segment 230 is semicircular, the spherical segment 230 has a curved surface 231 and a plane 232, the curved surface 231 can be disposed toward the upper side, the plane 232 can be disposed toward the lower side, a spring plate 510 is disposed in the casing 100, the spring plate 510 is located between the first stop ring 210 and the second stop ring 220, a middle portion of the spring plate 510 in the length direction is matched with the plane 232, the casing 100 is configured with an avoiding groove 103, for example, the avoiding groove 103 is formed on the base 110 and located below the spring plate 510, and the avoiding groove 103 is configured to allow the spring plate 510 to deform when acted by the spherical segment 230.

Specifically, when the rotating shaft 200 is rotated by an external force, the ball notch 230 downwardly presses the middle portion of the spring plate 510 in the length direction, the avoiding groove 103 in the middle portion of the spring plate 510 in the lower direction is elastically deformed, when the external force for rotating the rotating shaft 200 is cancelled, the middle portion of the spring plate 510 rebounds upward, and the rotating shaft 200 can be rotated by the action of the plane 232, so that the rotating shaft 200 is reset.

As will be understood by those skilled in the art, in a balance car, the rotation of the shaft 200 is generally controlled by a foot lever, and the maximum rotation angle of the shaft 200 does not exceed 15 ° when the shaft is rotated in one direction from the initial position.

Further, as shown in fig. 2 and 3, a damping sliding piece 610 is disposed in the housing 100, the damping sliding piece 610 is located between the first stop ring 210 and the second stop ring 220, for example, the damping sliding piece 610 is disposed in the upper cover 120 and has a circular arc cross section, the damping sliding piece 610 is engaged with the curved surface 231 of the segment 230, and generates a damping effect on the rotating shaft 200 when the rotating shaft rotates, thereby improving the control accuracy of the steering.

In some embodiments of the present invention, as shown in fig. 3, the steering mechanism of the balance car further includes a magnet fixing member 710 and a hall plate 720.

The magnet fixing member 710 is provided on an end surface of the rotation shaft 200 at an end protruding into the housing 100, and is used to fix a ring magnet (not shown). The hall plate 720 is arranged in the casing 100 and is positioned at one end of the rotating shaft 200, which extends into the casing 100, the hall plate 720 is provided with a hall sensor 721, the hall sensor 721 extends into the annular magnet, the rotating shaft 200 drives the annular magnet to rotate when rotating, the angle between the hall sensor 721 and the magnetic induction line changes, the magnetic field intensity changes, the output hall voltage changes, and a corresponding steering signal is generated according to the change of the hall voltage.

The operation and principle of the hall sensor 721 are known to those skilled in the art, and are not described herein.

In some specific examples of the present invention, as shown in fig. 3, the end surface of the rotating shaft 200 that protrudes into the end of the housing 100 is provided with a mounting groove, and the magnet fixing member 710 is disposed in the mounting groove.

The central axis of the magnet holder 710 coincides with the central axis of the hall sensor 721 and is perpendicular to the hall plate 720.

Further, the position department of the neighbouring hall plate 720 of casing 100 is equipped with the line hole 104, for example, the end wall of the neighbouring hall plate 720 of upper cover 120 is located to the line hole 104, inject glue filling space 730 between casing 100 and the hall plate 720, glue filling space 730 is located between hall plate 720 and the line hole 104, the back is worn out from the line hole 104 to hall plate 720's connecting wire, glue filling space 730 intussuseption is filled with waterproof glue, from this both can realize hall plate 720's electricity and connect, can improve the waterproof nature of hall plate 720 department again, and can play the fixed action to hall plate 720's connecting wire.

The following describes the balance car according to the embodiment of the present invention.

According to the utility model discloses the balance car includes the basis the utility model discloses the steering mechanism of the balance car of above-mentioned embodiment.

According to the utility model discloses balance car, through utilizing according to the utility model discloses above-mentioned embodiment's steering mechanism of balance car has advantages such as steering performance is reliable, the security is high.

Other configurations and operations of the balance car according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "particular embodiment," "particular example," etc., 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A steering mechanism of a balance car is characterized by comprising:

the shell is arranged on the balance car body and provided with an extending port;

the rotating shaft extends into the shell from the extending opening;

the magnet fixing piece is arranged at one end, extending into the shell, of the rotating shaft and used for fixing the annular magnet;

the Hall plate is arranged in the shell and is provided with a Hall sensor, and the Hall sensor extends into the annular magnet.

2. The steering mechanism of the balance car according to claim 1, wherein an end surface of the rotating shaft, which extends into the housing, is provided with a mounting groove, and the magnet fixing member is disposed in the mounting groove.

3. The steering mechanism of the balance car according to claim 1, wherein the central axis of the magnet fixing member coincides with the central axis of the hall sensor and is disposed perpendicular to the hall plate.

4. The steering mechanism of the balance car according to claim 1, wherein a line passing hole is formed in a position, adjacent to the hall plate, of the housing, a glue filling space is defined between the housing and the hall plate, the glue filling space is located between the hall plate and the line passing hole, and waterproof glue is filled in the glue filling space.

5. The steering mechanism of the balance car according to any one of claims 1 to 4, wherein the rotating shaft is provided with a first stop ring and a second stop ring which are arranged at intervals along the axial direction of the rotating shaft, a first bearing and a second bearing are sleeved on the rotating shaft, and the rotating shaft is supported in the shell through the first bearing and the second bearing;

the first bearing is located on one side of the first stop ring, which faces away from the second stop ring, and the second bearing is located on one side of the second stop ring, which faces away from the first stop ring.

6. The steering mechanism of the balance car according to claim 5, wherein the portion of the rotating shaft located between the first stop ring and the second stop ring is configured as a semicircular spherical segment, the semicircular spherical segment has a curved surface and a flat surface, a spring plate is arranged in the housing, the spring plate is located between the first stop ring and the second stop ring, the middle portion of the spring plate in the length direction is matched with the flat surface, and the housing is configured with an avoiding groove for deformation of the spring plate when the semicircular spherical segment acts on the spring plate.

7. The steering mechanism of balance car according to claim 6, wherein a damping slide is provided in the housing, and the damping slide is located between the first stop ring and the second stop ring and is engaged with the curved surface.

8. The steering mechanism of a balance car according to any one of claims 1 to 4, wherein the housing comprises:

a base;

the upper cover and the base are detachably mounted, and the upper cover and the base jointly limit the extending port.

9. The steering mechanism of a balance car according to claim 8, wherein the upper cover is integrally formed with a body of the balance car.

10. A balance car characterized by comprising the steering mechanism of a balance car according to any one of claims 1 to 9.