Connecting structure of balance car damping device and balance car

Abstract

The utility model belongs to the technical field of balance cars, and particularly relates to a connecting structure of a balance car damping device and a balance car, the connecting structure comprises a wheel assembly, the damping device and a connecting assembly, and the connecting assembly comprises a bearing piece and a fixing piece; a connecting base is arranged on the outer side face of the bearing piece, the connecting base comprises a connecting part, the connecting part is provided with a stop block protruding outwards, and the bearing piece is connected with a connecting shaft of the wheel assembly in a limiting mode through the connecting base; the connecting base is provided with a wire groove, and the wire groove extends to the top of the bearing piece from the side face of the connecting base. The fixing piece is fixedly connected with the bearing piece, the damping device is arranged between the bearing piece and the fixing piece in an inserted mode, through the design of the stop block, the functions of rotation stopping and shearing preventing are achieved, and the firmness of connection between the bearing piece and a corresponding structure on the connecting shaft is enhanced; and the wire outlet position can be fixed and protected conveniently through the wire groove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of balance car, concretely relates to balance car damping device's connecting structure and balance car. BACKGROUND

[0002] Balance car is a kind of commonly used travel tool driven by electricity, greatly facilitates people's short trip, due to the unevenness of road, balance car has the jolt feeling in the process of driving, leading to the use experience of driver extremely poor, to improve the comfort of driver, usually installs shock absorber on the both sides of balance car wheel.

[0003] However, the connecting structure of the existing shock absorber and unicycle is usually inserted and fixed by the cylindrical connecting part and the rotating shaft of the wheel, when the balance car is impacted, the characteristics of cylindrical structure can easily lead to the fixing effect failure of connecting part, relative rotation trend is generated between connecting part and rotating shaft, the shear force generated by rotation is directly borne by the bolt in connecting structure, and the bolt can be sheared and broken under the action of shear load, so there is certain safety risk. INVENTION CONTENTS

[0004] In order to overcome the defects of prior art, the utility model provides balance car damping device's connecting structure and balance car, to solve the problem that the balance car of prior art is impacted, the characteristics of cylindrical structure can easily lead to the fixing effect failure of connecting part, relative rotation trend is generated between connecting part and rotating shaft, the shear force generated by rotation is directly borne by the bolt in connecting structure, and the bolt can be sheared and broken under the action of shear load, so there is certain safety risk.

[0005] One scheme of the utility model provides a kind of balance car damping device's connecting structure, including wheel assembly, damping device and connecting component, the connecting shaft is installed in the wheel assembly, the damping device is set on the both sides of the wheel assembly, the connecting component is used to connect the connecting shaft with the damping device, the outside of the connecting component is equipped with connecting seat, the connecting seat includes connecting part, the connecting part is provided with the stopper that protrudes outward, the connecting component is connected by the connecting seat with the connecting shaft limit;

[0006] The connecting seat is equipped with wire slot, the wire slot extends from the side of the connecting seat to the top of the connecting component, for accommodating motor wire extended from the wheel assembly;

[0007] The bottom of the damping device is integrally formed with the connecting component, or the connecting component is sleeved on the bottom of the damping device.

[0008] In one of the utility models, the stop block is provided with two, and the stop blocks are symmetrically arranged on the two sides of the connecting part, and the stop block and the connecting part form a long strip type stop connecting structure.

[0009] In one of the utility models, the stop block is provided with several, and the stop blocks are circumferentially arranged on the outer side of the connecting part, and the stop block and the connecting part form a star type stop connecting structure.

[0010] In one of the utility models, the wire groove is an arc-shaped groove, the guide inlet of the wire groove is arranged along the horizontal direction and faces the connecting shaft, and the guide outlet of the wire groove is perpendicular to the guide inlet of the wire groove and faces the top of the connecting assembly.

[0011] In one of the utility models, when the connecting assembly is sleeved on the bottom of the damping device, the connecting assembly comprises a supporting piece and a fixing piece, the connecting seat is arranged on the outer side of the connecting assembly, the fixing piece is fixedly connected with the supporting piece, the supporting piece is used for supporting the damping device, and the fixing piece is used for fixing the damping device on the supporting piece.

[0012] In one of the utility models, the inner side of the supporting piece and the fixing piece are respectively provided with half-cylinder concave surfaces, the supporting piece and the fixing piece form a cylindrical structure, and the cylindrical structure is used for sleeving and fixing the bottom of the damping device.

[0013] In one of the utility models, the half-cylinder concave surface of the supporting piece is also provided with a first fixing hole, a first bolt is arranged in the first fixing hole, and the supporting piece is fixedly connected with the connecting shaft through the first bolt.

[0014] In one of the utility models, the half-cylinder concave surface of the supporting piece is also provided with a first fixing hole, a first bolt is arranged in the first fixing hole, and the supporting piece is fixedly connected with the connecting shaft through the first bolt.

[0015] In one of the utility models, the two sides of the supporting piece are respectively provided with first fixing parts, the left and right sides of the fixing piece are respectively provided with second fixing parts matched with the first fixing parts, and the first fixing parts are fixedly connected with the second fixing parts through second bolts.

[0016] In one of the utility models, the first fixing part and the second fixing part are respectively provided with second fixing holes, and the second fixing holes are provided with threads matched with the second bolts.

[0017] The first fixing part is also provided with a third fixing hole, and the third fixing hole is used for arranging a mud guard on the outer side through the fixing piece.

[0018] One embodiment of this utility model also discloses a self-balancing scooter, which includes a frame, wheels, a battery compartment, pedals, and a shock-absorbing device. The wheels are rotatably disposed below the frame, the battery compartment is disposed on the side or inside of the frame, the pedals are disposed on the battery compartment or the frame, and the shock-absorbing device is disposed between the frame and the wheels. The shock-absorbing device includes a connection structure as described in any of the above embodiments for the self-balancing scooter shock-absorbing device.

[0019] The connection structure of the shock absorption device for a self-balancing scooter provided by this utility model and the self-balancing scooter can achieve the following technical effects:

[0020] 1. The stop block is set on the side of the connecting part. The protruding stop block locks the connecting shaft and prevents the connecting part from rotating during use. The design of the stop block achieves the functions of anti-rotation and anti-shear, which enhances the firmness of the connection between the support and the corresponding structure on the connecting shaft and will not fail when subjected to impact. Two stop blocks are symmetrically arranged on both sides of the connecting part to form a long strip-shaped stop connection structure, or several stop blocks are arranged circumferentially on the outer side of the connecting part to form a star-shaped stop connection structure. Both can increase the contact surface between the limiting structure and the insertion hole on the connecting shaft, and improve the stability of the connection between the two.

[0021] 2. The wire groove extends from the side of the connector to the top of the support. The arc design allows the motor wires to pass through smoothly, and the guide outlet is perpendicular to the guide inlet, ensuring a more reasonable arrangement of the motor wires.

[0022] 3. The design of the first fixing hole and bolt enhances the fixing effect between the support and the connecting shaft; the bottom of the semi-cylindrical concave surface of the support is provided with a support part to support the shock absorption device and ensure its stability during use; and the support is provided with a first fixing part on both sides, and the fixing part is provided with a second fixing part on both sides of the fixing part to cooperate with the first fixing part. The two are fixedly connected by the second bolt, which enhances the connection strength between the support and the fixing part and ensures the firmness of the connection. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 A schematic diagram showing the connection structure of the self-balancing vehicle shock absorption device of this utility model;

[0025] Figure 2 express Figure 1 Enlarged structural diagram at point A;

[0026] Figure 3 A three-dimensional structural diagram showing the support and fixing components of this utility model;

[0027] Figure 4 This is a schematic diagram showing the structure of the connecting component of this utility model;

[0028] Figure 5 A three-dimensional structural diagram of the support and fixing components of this utility model from another perspective;

[0029] Figure 6 This is a schematic diagram showing the structure of the support component of this utility model.

[0030] The annotations in the attached figures are explained as follows:

[0031] 1-Wheel assembly; 11-Connecting axle; 2-Shock absorber; 3-Connecting assembly; 31-Supporting component; 32-Fixing component; 33-Connecting seat; 34-Connecting part; 35-Stop block; 36-Wire guide groove; 37-First fixing part; 38-Second fixing part; 4-Semi-cylindrical concave surface; 5-First fixing hole; 6-Supporting part; 7-Second fixing hole; 8-Third fixing hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1, please refer to Figures 1-6 One embodiment of this utility model provides a connection structure for a shock absorption device for a self-balancing scooter, including a wheel assembly 1, a shock absorption device 2, and a connecting assembly 3. The wheel assembly 1 is equipped with a connecting shaft 11, the shock absorption device 2 is disposed on both sides of the wheel assembly 1, and the connecting assembly 3 is used to connect the connecting shaft 11 and the shock absorption device 2.

[0034] The outer side of the connecting assembly 3 is provided with a connecting seat 33, the connecting seat 33 comprises a connecting part 34, the connecting part 34 is provided with an outward protruding stop block 35, the connecting assembly 3 is limit connected with the connecting shaft 11 through the connecting seat 33; the connecting seat 33 is provided with a wire groove 36, the wire groove 36 extends from the side of the connecting seat 33 to the top of the connecting assembly 3, and is used for accommodating motor wires extending out from the wheel assembly 1; the bottom of the damping device 2 is integrally formed with the connecting assembly 3.

[0035] Understandably, in the embodiment, the damping device 2 in the embodiment is a shock absorber, the shock absorber is a gas pressure shock absorber, an oil pressure shock absorber or an oil-gas shock absorber; the connecting part 34 and the stop block 35 are used for cooperating with corresponding structures (such as grooves or limit grooves) on the connecting shaft 11, so that the limit connection between the connecting shaft 11 and the connecting assembly 3 is realized; the design of the stop block 35 enables the connecting assembly 3 to move forward and backward only along the insertion direction of the groove or the limit groove, so that the loosening or falling off between the connecting shaft 11 and the connecting assembly 3 caused by external force (such as bumpy road) is prevented, and the problem that the fixing effect of the connecting part 34 is easily lost due to the characteristics of the cylindrical structure, and the relative rotation between the connecting part 34 and the rotating shaft is caused.

[0036] In addition, the structure that the connecting structure and the bottom of the damping device 2 are integrally formed reduces the connecting points between parts, avoids the structural weakness caused by traditional welding, screw connection and the like, can better bear impact force, and improves the overall strength of the product; and the integrally formed mode reduces the assembly link of the connecting structure and the damping device 2, the installation process is more convenient, only the connecting part 34 and the stop block 35 need to be cooperatively installed with the connecting shaft 11, and the defective product rate caused by assembly error is also reduced.

[0037] Understandably, by placing the motor wires in the wire groove 36, the motor wires can be prevented from being rubbed, wound or damaged with the wheel assembly 1 or other parts during wheel rotation or damping device 2 operation, and meanwhile, the design of the wire groove 36 can also reasonably arrange the motor wires, so that the whole connecting structure is more tidy and beautiful.

[0038] In the embodiment, the connecting assembly 3 is integrally formed with the bottom of the damping device 2, the connecting assembly 3 is provided with the connecting part 34 and the stop block 35, the connecting part 34 is provided with the outward protruding stop block 35, the connecting assembly 3 is limit connected with the connecting shaft 11 through the connecting seat 33, the connecting seat 33 is provided with the wire groove 36, the wire groove 36 extends from the side of the connecting seat 33 to the top of the connecting assembly 3, and is used for accommodating motor wires extending out from the wheel assembly 1. Figures 1-6

[0039] ​The outer side of the supporting piece 31 is provided with a connecting seat 33, the connecting seat 33 comprises a connecting part 34, the connecting part 34 is provided with an outward protruding stop block 35, and the supporting piece 31 is limitingly connected with the connecting shaft 11 through the connecting seat 33.

[0040] The connecting seat 33 is provided with a wire groove 36 extending from the side of the connecting seat 33 to the top of the supporting piece 31, and used for accommodating the motor wire extending from the wheel assembly 1.

[0041] The fixing piece 32 is fixedly connected with the supporting piece 31, the supporting piece 31 is used for supporting the damping device 2, the fixing piece 32 is used for fixing the damping device 2 on the supporting piece 31, and the supporting piece 31 is connected with the fixing piece 32 and is sleeved on the bottom of the damping device 2.

[0042] It can be understood that the damping device 2 in the embodiment is a shock absorber, and the shock absorber is a gas pressure shock absorber, an oil pressure shock absorber or an oil-gas shock absorber; the connecting part 34 and the stop block 35 are used for cooperating with corresponding structures (such as grooves or limiting grooves) on the connecting shaft 11, so that the limitingly connecting between the connecting shaft 11 and the supporting piece 31 is realized; the design of the stop block 35 enables the supporting piece 31 to only move forward and backward along the insertion direction of the groove or the limiting groove, thereby preventing the connecting shaft 11 and the supporting piece 31 from being loose or falling off due to external force (such as bumpy road), and solving the problem that the fixing effect of the connecting part 34 is invalid due to the characteristics of the cylindrical structure, and the relative rotation between the connecting part 34 and the rotating shaft is prone to occurring.

[0043] In addition, the supporting piece 31 provides support for the damping device 2, so that the damping device 2 can stably bear the force from the wheel assembly 1 during the working process, and the fixing piece 32 further fixes and restricts the damping device 2, so that the damping device 2 is prevented from being loose or displaced during use.

[0044] It can be understood that, by arranging the motor wire in the wire groove 36, the motor wire can be prevented from being rubbed, wound or damaged with the wheel assembly 1 or other components during the rotation of the wheel or the working process of the damping device 2, and meanwhile, the design of the wire groove 36 can also reasonably arrange the motor wire, so that the whole connecting structure is more tidy and beautiful.

[0045] Please refer to Figures 3-6 In one of the embodiments of the utility model, the stop block 35 is provided with two, and the stop block 35 is symmetrically arranged on the two sides of the connecting part 34, and the stop block 35 and the connecting part 34 form a long strip type stop connecting structure.

[0046] It can be understood that the two stop blocks 35 are symmetrically arranged on both sides of the connecting part 34, and the symmetric design can ensure that the force of the connecting shaft 11 in the bearing piece 31 is more uniform. When the connecting structure is impacted, the stop blocks 35 on both sides of the connecting shaft 11 can work simultaneously to prevent the relative rotation trend between the connecting part 34 and the rotating shaft, thereby ensuring the stability of the connection.

[0047] In one of the embodiments of the utility model, the stop block 35 is provided with a plurality of, and the stop block 35 is circumferentially arranged on the outer side of the connecting part 34, and the stop block 35 and the connecting part 34 form a star-shaped stop connection structure.

[0048] It can be understood that the plurality of stop blocks 35 are circumferentially arranged on the outer side of the connecting part 34 to form a star-shaped stop connection structure, which has similar technical effects to the long strip-shaped stop connection structure. Both can increase the contact surface of the limiting structure and the plug-in hole on the connecting shaft 11, and improve the stability of the connection.

[0049] Please refer to Figure 3 and Figure 4 In one of the embodiments of the utility model, the wire groove 36 is an arc-shaped groove, the guide inlet of the wire groove 36 is arranged in the horizontal direction and faces the connecting shaft 11, and the guide outlet of the wire groove 36 is perpendicular to the guide inlet of the wire groove 36 and faces the top of the bearing piece 31.

[0050] It can be understood that the guide inlet of the wire groove 36 is arranged in the horizontal direction and faces the connecting shaft 11, which facilitates the smooth entry of the motor wire extending from the wheel assembly 1 into the wire groove 36. The guide outlet is perpendicular to the inlet and faces the top of the bearing piece 31, so that the motor wire can smoothly extend to the top of the bearing piece 31, facilitating the connection of the motor wire with other balance car accessories (such as battery compartment) outside. Therefore, the embodiment can better protect the motor wire and reduce the failure caused by damage to the motor wire.

[0051] Please refer to Figures 3-6 In one of the embodiments of the utility model, the inner side of the bearing piece 31 and the fixing piece 32 are respectively provided with a half-tube concave surface 4, the bearing piece 31 and the fixing piece 32 form a cylindrical structure, and the damping device 2 is inserted into the cylindrical structure.

[0052] It can be understood that the bearing piece 31 and the fixing piece 32 form a cylindrical structure, which provides a stable support environment for the damping device 2, which can effectively prevent the damping device 2 from shifting or shaking during operation.

[0053] Please refer to Figures 3-6In one of the embodiments of the utility model, the half cylinder concave surface 4 of the supporting piece 31 is further provided with a first fixing hole 5, a first bolt is arranged in the first fixing hole 5, and the supporting piece 31 is fixedly connected with the connecting shaft 11 through the first bolt.

[0054] It can be understood that the connecting portion 34 and the stopper 35 are matched with the corresponding structure (such as a groove or a limiting groove) on the connecting shaft 11 to realize the limiting connection between the connecting shaft 11 and the supporting piece 31, solve the problem that the fixing effect of the connecting portion 34 is easily lost due to the characteristics of the cylindrical structure, and the relative rotation between the connecting portion 34 and the rotating shaft is generated, the first fixing hole 5 is further arranged in the half cylinder concave surface 4 of the supporting piece 31, and the fixed connection between the supporting piece 31 and the connecting shaft 11 is realized through the first bolt arranged in the first fixing hole 5, so that the fixing effect of the connecting structure is decomposed into the stopper connecting structure to realize the anti-rotation shearing force and the first bolt to realize the anti-tension fixing, and the shearing force generated by the rotation of the bolt in the connecting structure is avoided.

[0055] Please refer to Figures 5-6 In one of the embodiments of the utility model, the bottom of the half cylinder concave surface 4 of the supporting piece 31 is provided with a supporting portion 6 for supporting the damping device 2 and ensuring that the damping device 2 remains stable during use.

[0056] In one of the embodiments of the utility model, the two sides of the supporting piece 31 are respectively provided with a first fixing portion 37, the left and right sides of the fixing piece 32 are respectively provided with a second fixing portion 38 matched with the first fixing portion 37, and the first fixing portion 37 is fixedly connected with the second fixing portion 38 through a second bolt.

[0057] In one of the embodiments of the utility model, a second fixing hole 7 is arranged in the first fixing portion 37 and the second fixing portion 38 respectively, and a thread matched with the second bolt is arranged in the second fixing hole 7.

[0058] The first fixing portion 37 is further provided with a third fixing hole 8, and the third fixing hole 8 is used for arranging a mud guard on the outer side surface through the fixing piece 32.

[0059] It can be understood that the second fixing hole 7 is arranged in the first fixing portion 37 and the second fixing portion 38 respectively, and the thread matched with the second bolt is arranged in the second fixing hole 7, so that the fixing effect is enhanced through the threaded connection, and the design of the third fixing hole 8 facilitates the installation of the mud guard, provides additional protection, prevents the soil and sundries from entering and adhering to the damping device 2, and prolongs the service life.

[0060] In one of the embodiments of the utility model, a balance car is further pointed out, the balance car includes frame, wheel, battery compartment, pedal and damping device, the wheel rotation is established below the frame, the battery compartment is established in the frame side or inside, the pedal is established on the battery compartment or the frame, the damping device is established between the frame and the wheel, the damping device includes the connecting structure of the balance car damping device of any one of the above multiple embodiments.

[0061] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the drawings contents, or direct / indirect application in other related technical fields under the utility model concept of the utility model are included in the patent protection range of the utility model.

Claims

1. A connecting structure of a balance car shock-absorbing device, comprising a wheel assembly, a shock-absorbing device and a connecting assembly, the wheel assembly is provided with a connecting shaft, the shock-absorbing device is arranged on both sides of the wheel assembly, and the connecting assembly is used for connecting the connecting shaft and the shock-absorbing device, characterized in that, an outer side surface of the connecting assembly is provided with a connecting seat, the connecting seat comprises a connecting part, the connecting part is provided with outward protruding stop blocks, and the connecting assembly is limitingly connected with the connecting shaft through the connecting seat; the connecting seat is provided with a wire groove, the wire groove extends from a side surface of the connecting seat to a top of the connecting assembly, and is used for accommodating motor wires extending from the wheel assembly; and the bottom of the shock-absorbing device is integrally formed with the connecting assembly, or the connecting assembly is sleeved on the bottom of the shock-absorbing device. The stop blocks are provided with two, and the stop blocks are symmetrically arranged on both sides of the connecting part, and the stop blocks and the connecting part form a long-strip type stop connecting structure. Or, the stop blocks are provided with a plurality of, and the stop blocks are circumferentially arranged on the outer side surface of the connecting part, and the stop blocks and the connecting part form a star type stop connecting structure. The wire groove is an arc-shaped groove, a guide inlet of the wire groove is arranged in a horizontal direction and faces the connecting shaft, and a guide outlet of the wire groove is perpendicular to the guide inlet of the wire groove and faces the top of the connecting assembly.

2. The connection structure of the shock-absorbing device of the balance car according to claim 1, wherein, When the connecting assembly is sleeved on the bottom of the shock-absorbing device, the connecting assembly comprises a supporting piece and a fixing piece, the connecting seat is arranged on the outer side surface of the connecting assembly, the fixing piece is fixedly connected with the supporting piece, the supporting piece is used for supporting the shock-absorbing device, and the fixing piece is used for fixing the shock-absorbing device on the supporting piece. The inner side surface of the supporting piece and the fixing piece are respectively provided with half-cylinder type concave surfaces, the supporting piece and the fixing piece form a cylindrical structure, and the cylindrical structure is used for sleeving and fixing the bottom of the shock-absorbing device.

3. The connection structure of the shock-absorbing device of the balance car according to claim 1, wherein, The half-cylinder type concave surface of the supporting piece is further provided with a first fixing hole, a first bolt is arranged in the first fixing hole, and the supporting piece is fixedly connected with the connecting shaft through the first bolt.

4. The connection structure of the shock-absorbing device of the balance car according to any one of claims 1-3, characterized in that, The half-cylinder type concave surface of the supporting piece is further provided with a first fixing hole, a first bolt is arranged in the first fixing hole, and the supporting piece is fixedly connected with the connecting shaft through the first bolt.

5. The connection structure of the shock-absorbing device of the balance car according to claim 4, characterized in that, The bottom of the half-cylinder type concave surface of the supporting piece is provided with a supporting part, and the supporting part is used for supporting the shock-absorbing device.

6. The connection structure of the shock-absorbing device of the balance car according to claim 5, wherein, The two sides of the supporting piece are respectively provided with first fixing parts, the left and right sides of the fixing piece are respectively provided with second fixing parts matched with the first fixing parts, and the first fixing parts are fixedly connected with the second fixing parts through second bolts.

7. The connection structure of the shock-absorbing device of the balance car according to claim 5, wherein, Second fixing holes are respectively arranged on the first fixing parts and the second fixing parts, and threads matched with the second bolts are arranged in the second fixing holes; 8. The connection structure of the shock-absorbing device of the balance car according to claim 5, wherein, The first fixing part is further provided with a third fixing hole, and the third fixing hole is used for arranging a fender on the outer side surface through the fixing piece.

9. The connection structure of the shock-absorbing device of the balance car according to claim 8, wherein, ​ ​ 10. A balance car, characterized in that, The application relates to a balance car, which comprises a frame, wheels, a battery compartment, a pedal and a damping device, wherein the wheels are arranged under the frame, the battery compartment is arranged on the side or inside of the frame, the pedal is arranged on the battery compartment or the frame, and the damping device is arranged between the frame and the wheels, and the damping device comprises the connecting structure of the balance car damping device according to any one of claims 1-9.

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