CN216468175U

CN216468175U - Vehicle lock structure and hub assembly

Info

Publication number: CN216468175U
Application number: CN202123043985.0U
Authority: CN
Inventors: 李激初; 林杰煌
Original assignee: Shenzhen Luofandi Transmission Co ltd
Current assignee: Shenzhen Luofandi Transmission Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-10
Anticipated expiration: 2031-12-06

Abstract

The application discloses a vehicle lock structure, which comprises a seat body fixedly sleeved on a shaft; the inner peripheral surface is provided with a lock ring of a lock groove; the first locking piece is arranged on the seat body and has a positive clamping state and a separation state with the locking groove; a second locking piece which is arranged on the seat body, is linked with the first locking piece, acts on the locking groove at the same time, and has a reverse clamping state and a separation state with the locking groove; the second elastic piece is arranged on the seat body and acts on the second locking piece to ensure that the second locking piece and the first locking piece keep a forward clamping state and a reverse clamping state; the first electric telescopic piece is arranged on the base body and acts on the first locking piece to enable the first locking piece and the second locking piece to be in a separated state; and the second electric telescopic piece is arranged on the base body and used for limiting the retraction of the first telescopic rod of the first electric telescopic piece. The application provides a lock structure and wheel hub subassembly and prior art comparison, the locking is effectual, the low power dissipation, long service life.

Description

Vehicle lock structure and hub assembly

Technical Field

The application relates to the technical field of vehicle locking, more specifically says, especially relates to a lock structure, still relates to a wheel hub subassembly that has this lock structure.

Background

The vehicle is used as a tool for riding instead of walk, occupies an increasingly important position in modern life, and brings great convenience to life styles of people no matter the vehicle is a two-wheeled vehicle, a tricycle, a wheelchair or an old-age scooter.

The vehicle locking structure is an important device on a vehicle, and has important influence on safety and use experience no matter whether the vehicle is prevented from being stolen or parked.

Current locking structure drives the locking part through the telescopic link of motor and carries out the locking, and when the locking structure was in the locking state, the motor need hold need work in order to keep the locking state, and this has increased the operating time of motor undoubtedly, not only makes the life of lock structure shorter, and just relies on the motor alone to keep the locking state, and is higher to the requirement of motor, and the effect of locking is not good enough.

Therefore, how to make the lock structure have good locking effect and long service life is a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, this application provides a lock structure and wheel hub subassembly, compares in prior art, and the locking is effectual, the low power dissipation, long service life.

In a first aspect, the present application provides a vehicle lock structure, including:

the base is fixedly sleeved on the shaft;

the inner peripheral surface is provided with a lock ring of a lock groove;

the first locking piece is arranged on the seat body and has a positive clamping state and a separation state with the locking groove;

the second locking piece is arranged on the seat body, is linked with the first locking piece, acts on the locking groove at the same time, and has a reverse clamping state and a separation state with the locking groove;

the second elastic piece is arranged on the seat body and acts on the second locking piece to enable the second locking piece and the first locking piece to keep the forward clamping state and the reverse clamping state;

the first electric telescopic piece is arranged on the base body and acts on the first locking piece to enable the first locking piece and the second locking piece to be in a separated state;

and the second electric telescopic piece is arranged on the base body and used for limiting the retraction of the first telescopic rod of the first electric telescopic piece.

In a second aspect, the present application provides a vehicle lock structure, comprising:

the seat body is arranged on an end cover fixed on the vehicle body;

a lock ring fixed on the shaft and capable of rotating relative to the seat body, and provided with a lock groove on the inner circumferential surface;

Preferably, the first electric telescopic piece and the second electric telescopic piece are electromagnets, and the retraction paths of the second telescopic rods of the first telescopic rod and the second electric telescopic piece are staggered.

Preferably, the method further comprises the following steps:

one end of the buffer piece is rotatably arranged on the seat body, and the other end of the buffer piece is contacted with the first telescopic rod;

set up in on the pedestal, one end acts on the bolster, the other end acts on first locking piece, so that the bolster is in when the effect of stretching out of the top of first telescopic link rotates down, first locking piece is in the first elastic component of separation state.

Preferably, the first locking member includes:

the first body is rotatably sleeved on a first positioning pin arranged on the seat body;

a first locking portion provided on the first body and acting on the locking groove;

a first arm disposed on the first body and acting on the second latch.

Preferably, the first and second liquid crystal materials are,

the first latch further comprises a second arm;

the buffer piece is further provided with a driving portion, and the driving portion acts on the second arm in the switching process of the first locking piece from the separation state to the forward clamping state.

Preferably, the buffer part is further provided with an acting plate contacting with the first telescopic rod.

Preferably, the second lock member includes:

the second body is rotatably sleeved on a second positioning pin arranged on the seat body;

a second locking part arranged on the second body and acting on the locking groove;

and a torsion portion provided on the second body and acting on the first arm.

Preferably, the method further comprises the following steps:

the limiting part is arranged on a second telescopic rod of the second electric telescopic piece and used for limiting the retraction of the first telescopic rod.

Preferably, the stopper includes:

a rotating part rotatably mounted on the first electric telescopic member or the base body;

the limiting part is arranged on the rotating part and is provided with a limiting position for limiting the retraction of the first telescopic rod and a releasing position for limiting the retraction of the first telescopic rod;

the driving part is driven by a second telescopic rod of the second electric telescopic piece to drive the rotating part to rotate so as to switch the limiting position and the releasing position.

Preferably, the first and second liquid crystal materials are,

the second telescopic rod is circumferentially provided with a clamping groove;

the driving part is provided with a clamping part matched with the clamping groove.

Preferably, the first and second liquid crystal materials are,

the second telescopic rod is hinged to the driving part, so that the second telescopic rod stretches and retracts to drive the driving part to rotate in the plane of the seat body.

Preferably, the first and second liquid crystal materials are,

the first body of the first locking piece is also provided with a third arm;

the seat body is provided with a control piece which acts on the third arm so that the first locking piece is switched from the positive clamping state to the separation state.

Preferably, the control member includes:

the control shaft penetrates through the seat body;

the eccentric block is arranged at one end of the control shaft and acts on the third arm;

and the control part is arranged at the other end of the control shaft and can drive the control shaft to rotate.

Preferably, the electric telescopic device further comprises a control circuit for controlling the first electric telescopic piece and the second electric telescopic piece;

the control circuit includes:

a first circuit, one end of which is connected with one pole of a power supply, and the other end of which is connected with the first electric telescopic piece;

a second circuit, one end of which is connected with the other pole of the power supply, and the other end of which is connected with the first electric telescopic piece;

a first diode disposed on the first line;

a third line having one end connected to the first line and the other end connected to the second electric telescopic member;

a fourth line, one end of which is connected with the second line and the other end of which is connected with the second electric telescopic piece;

and the second diode is arranged on the third line and is opposite to the conducting direction of the first diode.

Preferably, the method further comprises the following steps:

a sensor for detecting that the second lock is in the disengaged state.

In a third aspect, the present application provides a hub assembly comprising:

a drive mechanism;

a speed change mechanism that receives a driving force of the driving mechanism;

a hub that receives the driving force provided by the transmission mechanism and rotates; and the number of the first and second groups,

the vehicle lock structure of any one of the above, wherein the lock ring rotates together with the hub.

Preferably, the driving mechanism is a motor.

Compared with the prior art, the utility model provides a lock structure, because first locking piece and second locking piece interlock can be in block state and separation state simultaneously, and adopt first electronic extensible member to act on first locking piece and make first locking piece and second locking piece be in separation state, second electronic extensible member is used for restricting the first telescopic link of first electronic extensible member to retract, therefore, when first locking piece and second locking piece are in the block state, first electronic extensible member, second electronic extensible member are out of work, lock structure energy consumption is low, and long service life; the electronic extensible member of second can restrict the returning of first telescopic link in addition, and the two cooperation need not only keep the locking state by the work of first electronic extensible member, consequently, the locking is effectual.

Drawings

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

Fig. 1 is a schematic perspective view of a locking structure provided in an embodiment of the present invention;

fig. 2 is a schematic view of an unlocking state of the locking structure provided in the embodiment of the present invention;

fig. 3 is a schematic view of a locking state of the locking structure provided in the embodiment of the present invention;

FIG. 4 is an enlarged view of the point A in FIG. 3;

fig. 5 is a schematic structural view of a second locking member according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a first locking member according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a buffer member according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a locking structure with a limiting member according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a limiting member according to an embodiment of the present invention;

fig. 10 is a schematic view of a locking state of the locking structure with a limiting member according to an embodiment of the present invention;

fig. 11 is a schematic view of an unlocking state of a locking structure with a limiting member in an embodiment of the present invention;

FIG. 12 is a schematic view of a locking structure with a control member according to an embodiment of the present invention;

fig. 13 is a schematic view illustrating an installation position of the control member in the locking structure according to the embodiment of the present invention;

fig. 14 is a schematic structural view of a hub assembly according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a locking structure of the locking ring mounted on the end cover according to an embodiment of the present invention;

fig. 16 is a schematic diagram of a control circuit according to an embodiment of the present invention.

Wherein,

the lock structure 10, the drive mechanism 20, the shift mechanism 30, the hub 40,

the length of the shaft 100, end cap 110,

the base body 200, the first positioning pin 210, the second positioning pin 220, the third positioning pin 230, and the sensor 240

The length of the lock ring 300, the lock slot 310,

a first locking member 410, a first body 411, a first locking part 412, a first arm 413, a second arm 414, a third arm 415, a second locking member 420, a second body 421, a second locking part 422, a torsion part 423,

the first elastic member 510, the second elastic member 520,

a first electric telescopic part 610, a first telescopic rod 611, a second electric telescopic part 620, a second telescopic rod 621, a clamping groove 622,

a buffer member 700, a driving portion 710, an acting plate 720,

a position-limiting member 800, a rotating member 810, a position-limiting member 820, a driving member 830, a locking member 831,

a control member 900, a control shaft 910, an eccentric mass 920, and a control part 930.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.

As shown in fig. 1 to fig. 15, an embodiment of the present invention provides a vehicle lock structure 10, including: a base 200 fixedly sleeved on the shaft 100; a lock ring 300 having a lock groove 310 formed in an inner circumferential surface thereof; a first locking member 410 mounted on the base 200 and having a forward engaging state and a separating state with the locking groove 310; a second locking member 420 which is mounted on the base 200, is interlocked with the first locking member 410, simultaneously acts on the locking groove 310, and has a reverse engagement state and a separation state with the locking groove 310; a second elastic member 520 mounted on the base 200 and acting on the second locking member 420 to make the second locking member 420 and the first locking member 410 maintain a forward engaging state and a reverse engaging state; a first electric telescopic element 610 which is arranged on the base body 200 and acts on the first locking element 410 to enable the first locking element 410 and the second locking element 420 to be in a separated state; and a second electric telescopic element 620 which is arranged on the base body 200 and limits the retraction of the first telescopic rod 611 of the first electric telescopic element 610.

Compared with the prior art, the vehicle lock structure 10 provided by the embodiment of the present invention has the advantages that since the first locking member 410 and the second locking member 420 are linked to be in the engaging state and the disengaging state simultaneously, and the first electric telescopic member 610 is adopted to act on the first locking member 410 so as to enable the first locking member 410 and the second locking member 420 to be in the disengaging state, and the second electric telescopic member 620 is used for limiting the retraction of the first telescopic rod 611 of the first electric telescopic member 610, when the first locking member 410 and the second locking member 420 are in the engaging state, the first electric telescopic member 610 and the second electric telescopic member 620 do not work, the energy consumption of the vehicle lock structure 10 is low, and the service life is long; in addition, the second electric telescopic part 620 can limit the retraction of the first telescopic rod 611, and the first telescopic rod 611 and the second telescopic rod are matched, so that the locking state is not required to be kept only by the operation of the first electric telescopic part 610, and therefore, the locking effect is good.

In the above structure, the shaft 100 is fixed to the vehicle body, the seat body 200 is fixed to the shaft 100 and does not rotate, and the lock ring 300 rotates with the rotation of the wheel.

Of course, as shown in fig. 15, the seat body 200 may also be disposed on the end cover 110, and the end cover 110 is fixed on the vehicle body, at this time, the locking ring 300 is fixed on the shaft 100, and the shaft 100 can rotate along with the rotation of the wheel, so as to drive the locking ring 300 to rotate.

The forward engagement state in the embodiment of the present invention means that when the first locking member 410 acts on the locking groove 310 of the locking ring 300, the locking ring 300 cannot rotate in one direction, which may be the direction in which the vehicle moves forward or the direction in which the vehicle moves backward. The reverse engagement state is relative to the forward engagement state, and if the forward engagement state means that the lock ring 300 cannot rotate in the forward direction of the vehicle, the reverse engagement state means that the lock ring 300 cannot rotate in the backward direction of the vehicle, and vice versa. The arrangement of the first locking piece 410 and the second locking piece 420 realizes bidirectional locking, and the locking effect is good.

The card-behind state refers to a locked state, and the separated state refers to an unlocked state.

The embodiment of the present invention provides an electromagnet is preferably used for the first electric telescopic part 610 and the second electric telescopic part 620, and the first telescopic rod 610 and the second telescopic rod 621 of the second electric telescopic part 620 are interlaced in the retraction path.

The electromagnet core can stretch out after the electromagnet is powered on, and can automatically retract (under the action of the electromagnet spring) after the electromagnet is powered off, wherein the retraction at the position means that the electromagnet core can stretch out to a certain length towards the tail after retracting to the tail.

When the first electric telescopic part 610 and the second electric telescopic part 620 adopt electromagnets and the retraction paths of iron cores of the first electric telescopic part 610 and the second electric telescopic part 620 are staggered, unlocking only needs to be conducted on the first electric telescopic part 610, at this time, the first telescopic rod 611 of the first electric telescopic part 610 extends out to act on the first locking part 410, and as the second electric telescopic part 620 is not conducted and the retraction path of the second telescopic rod 621 is staggered with the first telescopic rod 611, the retraction of the first telescopic rod 611 is blocked after the retraction of the second telescopic rod 620 is finished, and the first electric telescopic part 611 still keeps a top-extending state to act on the first locking part 410 after the power is cut off, so that the unlocking is finished; the second electric telescopic part 620 only needs to be powered on during locking, at the moment, the second telescopic rod 621 of the second electric telescopic part 620 extends out (namely, the second telescopic rod 621 retracts from the tail), the retraction path of the first telescopic rod 611 is smooth, the first telescopic rod 611 can retract automatically, the first telescopic rod 611 retracts in place and then is locked, then the second electric telescopic part 620 is powered off, and the first telescopic rod 611 retracts in place to occupy the retraction path of the second telescopic rod 621, so that the second telescopic rod 621 cannot retract.

Adopt as above structure, only need when unblock or locking for alone give first electronic extensible member 610 with second electronic extensible member 620 circular telegram can, compare with prior art, greatly must reduce the energy consumption, improved locking structure's life.

The locking structure provided in the embodiment of the present invention further includes a control circuit for controlling the first electric telescopic element 610 and the second electric telescopic element 620; as shown in fig. 16, the control circuit includes: a first circuit having one end connected to a first pole a of the power supply and the other end connected to the first electric telescopic member 610; a second line having one end connected to the other pole B of the power supply and the other end connected to the first electric telescopic member 610; a first diode D1 provided on the first line; a third line having one end connected to the first line and the other end connected to the second electric telescopic element 620; a fourth line having one end connected to the second line and the other end connected to the second electric telescopic member 620; and a second diode D2 provided on the third line and turned on in the opposite direction to the first diode D1.

Wherein, the current can form a loop through the A pole, the first line, the first electric telescopic piece 610, the second line and the B pole; at this time, since the first diode D1 is turned on and the second diode D2 is turned off, the first electric telescopic element 610 is energized. The current can also form a loop through the B pole, the fourth line, the second electric telescopic piece 620, the third line and the A pole; at this time, since the second diode D2 is turned on and the first diode D1 is turned off, the second electric telescopic element 620 is energized.

The a electrode may be a positive electrode or a negative electrode of a power supply. The first diode D1 may be on the first line or the second line; the second diode D2 may be on the third line or the fourth line.

With the above control circuit, the first electric telescopic element 610 and the second electric telescopic element 620 can be connected to an external controller by two wire outputs, so that the positive pole a and the negative pole B are the first electric telescopic element 610 works (unlocks), and the second electric telescopic element 620 works (locks) otherwise.

When the lock ring 300 has a load torque on the first lock member 410 and the second lock member 420, the first lock member 410 and the second lock member 420 cannot be timely switched from the engaged state to the disengaged state, and at this time, the load of the first electric telescopic member 610 is large.

In order to solve the above problem, an embodiment of the present invention provides a locking structure 10, further including: a buffer member 700 having one end rotatably disposed on the base 200 and the other end contacting the first telescopic rod 611; the first elastic element 510 is disposed on the base 200, and one end of the first elastic element acts on the buffer member 700, and the other end of the first elastic element acts on the first locking element 410, so that when the buffer member 700 rotates under the action of the top extension of the first telescopic rod 611, the first locking element 410 is in a separated state.

With the above structure, when the locking ring 300 has a load torque on the first locking element 410 and the second locking element 420, the first telescopic rod 611 extends out of the top-extending buffer 700, and at this time, the buffer 700 rotates to transmit a torsion force to the first elastic element 510. When the load torque of the lock ring 300 on the first lock member 410 and the second lock member 420 is smaller, the first lock member 410 rotates under the action of the first elastic member 510, so as to drive the first lock member 410 to switch from the forward engagement state to the disengagement state. So set up, can protect first electric extensible member 610 well, improve first electric extensible member 610's life.

Wherein the first locking member 410 includes: a first body 411 rotatably fitted over the first positioning pin 210 disposed on the base 200; a first locking portion 412 provided on the first body 411 to act on the locking slot 310; a first arm 413 provided on the first body 411 and acting on the second lock member 420.

The first body 411 is sleeved on the first positioning pin 210, so that the first body 411 can rotate in the plane of the seat body 200 by using the first positioning pin 210 as an axis, thereby enabling the first locking portion 412 to be placed in the lock slot 310 or moved out of the lock slot 310.

The first locking member 410 of the present embodiment further includes a second arm 414; the buffer 700 further has a driving portion 710, and the driving portion 710 acts on the second arm 414 when the first locking element 410 is switched from the separated state to the forward-engaging state.

The first elastic element 510 is a torsion spring, and is sleeved on the first positioning pin 210, one end of the torsion spring is disposed on the first arm 413, the other end of the torsion spring is disposed on the buffering element 700, when the first body 411 rotates to enable the first locking portion 412 to be disposed in the locking groove 310, the first arm 413 rotates to apply a torsional force to the torsion spring, the torsion spring transmits the torsional force to the buffering element 700, so as to drive the buffering element 700 to rotate and act on the first telescopic rod 611, and the trend of retracting the first telescopic rod 611 is achieved. Thus, the assisting force can be provided for the retraction of the first telescopic rod 611, the service life of the first electric telescopic piece 610 is further prolonged, and even if the first telescopic rod 611 cannot be retracted, the retraction can be realized under the rotation action of the buffer piece 700. Meanwhile, the driving portion 710 can act on the second arm 414 to assist the rotation of the first body 411.

In the embodiment of the present invention, the buffer member 700 is further provided with an acting plate 720 contacting with the first telescopic rod 611. The arrangement of the acting plate 720 can increase the contact area between the buffer member 700 and the first telescopic rod 611, and improve the stability of the first telescopic rod 611 acting on the buffer member 700.

The second locking member 420 of the embodiment of the present invention includes: a second body 421 rotatably sleeved on the second positioning pin 220 disposed on the base 200; a second locking portion 422 provided on the second body 421 to act on the locking groove 310; is provided on the second body 422 and acts on the torsion portion 423 of the first arm 413.

The second body 421 is sleeved on the second positioning pin 220, so that the second body 421 can rotate in the plane of the seat body 200 by using the second positioning pin 220 as a shaft, thereby realizing that the second locking portion 422 is disposed in the locking groove 310 or moved out of the locking groove 310.

Wherein, the base 200 is further provided with a third positioning pin 230. The second elastic portion 520 is a torsion spring, the torsion spring is sleeved on the second positioning pin 220, one end of the torsion spring acts on the third positioning pin 230, and the other end of the torsion spring acts on the twisting portion 423 or the second body 421, so when the second locking member 420 is in the separation state, the second elastic portion 520 is in the twisting state, and at this time, the twisting force of the second elastic portion 520 is transmitted to the twisting portion 423 or the second body 421, so as to drive the second body 421 to rotate.

As an embodiment, the first arm 413 and the second elastic portion 520 are respectively disposed at two sides of the torsion portion 423, so that when the second elastic portion 520 provides a torsion force to rotate the second body 421, the first arm 413 is driven to rotate the first body 411, and at this time, the first locking member 410 and the second locking member 420 are both switched to the engaging state; when the first telescopic rod 611 extends out of the top extension buffer 700, the buffer 700 rotates and applies a torsional force to the first elastic element 510 to drive the first body 411 to rotate, in this process, the first arm 413 acts on the torsional portion 423 under the action of the torsional force applied by the first elastic element 510, so that the first locking element 410 and the second locking element 420 are switched from the engaging state to the disengaging state, and the second locking element 420 applies a torsional force to the second elastic element 520 in the switching process.

The embodiment of the utility model provides a locking structure 10 still includes: a limiting member 800 disposed on the second expansion link 621 of the second electric expansion link 620 for limiting the retraction of the first expansion link 611.

By adopting the above structure, instability caused by contact between the first telescopic rod 611 and the second telescopic rod 621 can be effectively avoided, so that the limitation of the second telescopic rod 621 and the first telescopic rod 611 is more stable.

Wherein, locating part 800 includes: a rotating part 810 rotatably installed on the first electric telescopic element 610 or the base body 200; a limiting part 820 disposed on the rotating part 810 and having a limiting position for limiting the retraction of the first telescopic rod 611 and a releasing position for enabling the retraction of the first telescopic rod 611; driven by the second telescopic rod 621, the rotating portion 810 is driven to rotate to switch the driving portion 830 for the limited position and the released position.

With the above structure, the area of the second expansion link 621 acting on the first expansion link 611 can be increased, and the stability of the limitation on the first expansion link 611 can be further improved.

It should be noted that the limiting position refers to a position where the limiting portion 820 is located on a path where the first telescopic rod 611 returns, so that the first telescopic rod 611 cannot retract, and the position may be a fixed position or an area. The release position is a position where the limiting portion 820 is not located on the path of the first telescopic rod 611 returning, so as to cause the first telescopic rod 611 to retract, and the position may be a fixed position or an area.

The stopper 820 is preferably a sheet member. The rotating portion 810 may employ a rod or a sheet member.

In the embodiment of the present invention, the second expansion link 621 acts on the driving portion 830, specifically, the second expansion link 621 is circumferentially provided with a clamping groove 622; the driving portion 830 is provided with an engaging portion 831 engaged with the engaging groove 622.

The engaging groove 622 is an annular groove along the circumference of the second expansion link 621. The clamping portion 831 is the breach that sets up on the drive division 830, and the breach card is in the ring channel, and second telescopic link 621 is at flexible in-process, along with the rotation of rotating portion 810, and second telescopic link 621 slides in the breach.

Preferably, the driving portion 830 is fixedly connected to the rotating portion 810 or the limiting portion 820, the driving portion 830 is an arc-shaped member, the engaging portion 831 is disposed along an arc shape, that is, the engaging portion 831 is also arc-shaped, and a concave surface of the arc-shaped member is disposed toward one side of the first telescopic rod 611. The part of the second expansion link 621 corresponding to the concave surface is also set to be a cambered surface matching with the concave surface. So set up for the second telescopic link 621 drives the rotation portion 810 to rotate more smoothly.

Of course, the structure that the second expansion link 621 drives the limiting member 800 to rotate may also be adopted, in which the second expansion link 621 is hinged to the driving portion 830, so that the second expansion link 621 expands and contracts to drive the driving portion 830 to rotate in the plane of the seat body 200. So set up, also can make second telescopic link 621 drive rotation portion 810 rotate more smoothly.

The locking structure may fail, that is, the first locking element 410 and the second locking element 420 are both in the engaged state and cannot be switched to the disengaged state. In order to solve this problem, in the embodiment of the present invention, a third arm 415 is further disposed on the first body 411; the seat body 200 is provided with a control member 900 acting on the third arm 415 to switch the first locking member 410 from the forward engagement state to the disengagement state.

With the above structure, the control member 900 can drive the first locking member 410 to rotate through the third arm 415, so as to switch the first locking member 410 from the engaging state to the disengaging state, and since the second locking member 420 is linked with the first locking member 410, the second locking member 420 can also be switched from the engaging state to the disengaging state. The problem of can't remove the locking state under the locking structure existence inefficacy condition is solved.

Wherein, control 900 includes: a control shaft 910 passing through the base 200; an eccentric mass 920 disposed at one end of the control shaft 910 and acting on the third arm 415; a control part 930 disposed at the other end of the control shaft 910 and capable of driving the control shaft 910 to rotate.

Specifically, when the locking structure 10 is unable to release the locking state, the control shaft 910 is rotated by the control part 930 to drive the eccentric block 920 to rotate, and during the rotation of the eccentric block 920, the protrusion of the eccentric block 920 acts on the third arm 415 to rotate the first locking member 410, and during the rotation of the first locking member 410, the first arm 413 acts on the torsion portion 423 on the second locking member 420 to drive the second locking member 420 to rotate, so as to release the locking state.

The embodiment of the utility model provides a locking structure 10 still includes: and a sensor 240 for detecting that the second latch member 420 is in the disengaged state.

The sensor 240 is configured to send a signal when the second locking member 420 is unlocked, so as to accurately identify whether the second locking member 420 is successfully unlocked.

The embodiment of the utility model provides a locking structure 10 can be applied to the wheelchair, when the vehicle is in slope locking state, catch 300 has the moment of torsion load to first locking piece 410 or second locking piece 420, when the unblock, first electronic expansion piece 610 has moved, but first locking piece 410 and second locking piece 420 are because of the unable time of moving of external load, sensor 240 no signal promptly, the vehicle accessible carries out the micro-adjustment to the vehicle this moment, the control wheel rocks around the control wheel, release load, make first locking piece 410 and second locking piece 420 break away from the locked groove 310 on the catch 300 smoothly, reach the unblock purpose.

As shown in fig. 14, an embodiment of the present invention further provides a hub assembly, including: a drive mechanism 20; a speed change mechanism 30 that receives a driving force of the driving mechanism 20; a hub 40 that rotates upon receiving a driving force provided by the shift mechanism 30; and, in any of the embodiments of the present invention, the lock ring 310 rotates together with the wheel hub 40.

Preferably, the drive mechanism 20 is a motor.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle lock structure, comprising:

the base is fixedly sleeved on the shaft;

the inner peripheral surface is provided with a lock ring of a lock groove;

2. A vehicle lock structure, comprising:

the seat body is arranged on an end cover fixed on the vehicle body;

3. The vehicle lock structure according to claim 1 or 2, wherein the first electric telescopic member and the second electric telescopic member are both electromagnets, and retraction paths of the second telescopic rods of the first telescopic rod and the second electric telescopic member are staggered.

4. The vehicle lock structure according to claim 3, further comprising:

5. The vehicle lock structure according to claim 4, wherein the first lock member includes:

a first arm disposed on the first body and acting on the second latch.

6. The vehicle lock structure according to claim 5,

the first latch further comprises a second arm;

7. The vehicle lock structure according to claim 4, wherein the buffer member is further provided with an acting plate contacting with the first telescopic rod.

8. The vehicle lock structure according to claim 5, wherein the second lock member includes:

and a torsion portion provided on the second body and acting on the first arm.

9. The vehicle lock structure according to any one of claims 1, 2, 4 to 8, characterized by further comprising:

10. The vehicle lock structure according to claim 9, wherein the stopper includes:

a rotating part rotatably installed on the first electric telescopic part or the base body;

11. The vehicle lock structure according to claim 10,

the second telescopic rod is circumferentially provided with a clamping groove;

12. The vehicle lock structure according to claim 10,

13. The vehicle lock structure according to any one of claims 1, 2, 4 to 8, 10 to 12,

the first body of the first locking piece is also provided with a third arm;

the seat body is provided with a control piece which acts on the third arm to enable the first locking piece to be switched from the positive clamping state to the separation state.

14. The vehicle lock structure as claimed in claim 13, wherein the control member comprises:

the control shaft penetrates through the seat body;

15. The vehicle lock structure according to claim 3, further comprising a control circuit for controlling the first electric telescopic member and the second electric telescopic member;

the control circuit includes:

a first diode disposed on the first line;

a fourth line having one end connected to the second line and the other end connected to the second electric telescopic member;

16. The vehicle lock structure according to claim 13, further comprising:

a sensor for detecting that the second lock is in the disengaged state.

17. A hub assembly, comprising:

a drive mechanism;

the vehicle lock structure according to any one of claims 1 to 16, wherein the lock ring rotates together with the hub.

18. The hub assembly of claim 17, wherein the drive mechanism is an electric motor.