A vehicle lock structure and a wheel hub assembly

Abstract

The present application discloses a vehicle lock structure, including a seat body fixedly sleeved on a shaft; a lock ring with a lock groove provided on its inner circumferential surface; a first locking member installed on the seat body, which has a forward engaging state and a separating state with the lock groove; a second locking member installed on the seat body, interlocked with the first locking member and simultaneously acting on the lock groove, which has a reverse engaging state and a separating state with the lock groove; a second elastic member installed on the seat body, acting on the second locking member to keep the second locking member and the first locking member in the forward engaging state and the reverse engaging state; a first electric telescopic member installed on the seat body, acting on the first locking member to make the first locking member and the second locking member in a separated state; and a second electric telescopic member installed on the seat body, restricting the retraction of the first telescopic rod of the first electric telescopic member. Compared with the prior art, the vehicle lock structure provided by the present application has good locking effect, low power consumption and long service life when used with a hub assembly.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle locking, and more specifically, to a vehicle lock structure, and also to a wheel hub assembly with the vehicle lock structure. Background Art

[0002] As a means of transportation, vehicles play an increasingly important role in modern life. Whether it is a two-wheeler, a three-wheeler, a wheelchair, or an elderly mobility scooter, they have brought great convenience to people's lifestyles.

[0003] The vehicle locking structure is an important device on the vehicle. Whether it is for anti-theft or parking, the vehicle locking structure has an important impact on safety and user experience.

[0004] In the existing locking structure, the telescopic rod of the motor drives the locking component to lock. When the locking structure is in the locked state, the motor needs to keep working to maintain the locked state. This undoubtedly increases the working time of the motor, not only making the service life of the vehicle lock structure shorter, but also relying solely on the motor to maintain the locked state, which requires a high demand for the motor and the locking effect is poor.

[0005] Therefore, how to make the vehicle lock structure have a good locking effect and a long service life is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] To solve the above technical problems, the present application provides a vehicle lock structure and a wheel hub assembly, which have a good locking effect, low power consumption, and a long service life compared with the prior art.

[0007] In a first aspect, the present application provides a vehicle lock structure, including:

[0008] A seat body fixedly sleeved on the shaft;

[0009] A lock ring with a lock groove provided on its inner peripheral surface;

[0010] A first locking member installed on the seat body and having a forward engaging state and a separating state with the lock groove;

[0011] A second locking member installed on the seat body, interlocking with the first locking member, and simultaneously acting on the lock groove and having a reverse engaging state and a separating state with the lock groove;

[0012] A second elastic member installed on the seat body, acting on the second locking member to keep the second locking member and the first locking member in the forward engaging state and the reverse engaging state;

[0013] A first electric telescopic member installed on the seat body, acting on the first locking member to keep the first locking member and the second locking member in a separated state;

[0014] A second electric telescopic member mounted on the base body to limit the retraction of the first telescopic rod of the first electric telescopic member.

[0015] Second, the present application provides a vehicle lock structure, including:

[0016] A base body provided on an end cover fixed to the vehicle body;

[0017] A lock ring fixed on a shaft, rotatable relative to the base body, and having a lock groove provided on its inner circumferential surface;

[0018] A first locking member mounted on the base body, having a positive engagement state and a separation state with the lock groove;

[0019] A second locking member mounted on the base body, interlocked with the first locking member, and simultaneously acting on the lock groove, having a reverse engagement state and a separation state with the lock groove;

[0020] A second elastic member mounted on the base body, acting on the second locking member to keep the second locking member and the first locking member in the positive engagement state and the reverse engagement state;

[0021] A first electric telescopic member mounted on the base body, acting on the first locking member to keep the first locking member and the second locking member in a separated state;

[0022] A second electric telescopic member mounted on the base body to limit the retraction of the first telescopic rod of the first electric telescopic member.

[0023] Preferably, both the first electric telescopic member and the second electric telescopic member are electromagnets, and the retraction paths of the first telescopic rod and the second telescopic rod of the second electric telescopic member are staggered.

[0024] Preferably, it further includes:

[0025] A buffer member, one end of which is rotatably provided on the base body, and the other end of which contacts the first telescopic rod;

[0026] A first elastic member provided on the base body, one end of which acts on the buffer member, and the other end of which acts on the first locking member, so that when the buffer member rotates under the pushing action of the first telescopic rod, the first locking member is in the separated state.

[0027] Preferably, the first locking member includes:

[0028] A first body rotatably sleeved on a first positioning pin provided on the base body;

[0029] A first locking portion disposed on the first body and acting on the locking groove;

[0030] A first arm disposed on the first body and acting on the second locking member.

[0031] Preferably,

[0032] The first locking member further includes a second arm;

[0033] A driving portion is further disposed on the buffer member, and the driving portion acts on the second arm during the process of the first locking member switching from the separated state to the forward engaging state.

[0034] Preferably, an acting plate in contact with the first telescopic rod is further disposed on the buffer member.

[0035] Preferably, the second locking member includes:

[0036] A second body rotatably sleeved on a second positioning pin disposed on the seat body;

[0037] A second locking portion disposed on the second body and acting on the locking groove;

[0038] A torsion portion disposed on the second body and acting on the first arm.

[0039] Preferably, further includes:

[0040] A limiting member disposed on the second telescopic rod of the second electric telescopic member for limiting the retraction of the first telescopic rod.

[0041] Preferably, the limiting member includes:

[0042] A rotating portion rotatably mounted on the first electric telescopic member or the seat body;

[0043] A limiting portion disposed on the rotating portion, having a limiting position for limiting the retraction of the first telescopic rod and a release position for the first telescopic rod to retract;

[0044] Driven by the second telescopic rod of the second electric telescopic member, a driving portion for driving the rotating portion to rotate to switch the limiting position and the release position.

[0045] Preferably,

[0046] The second telescopic rod is circumferentially provided with a card slot;

[0047] The driving portion is provided with an engaging portion cooperating with the card slot.

[0048] Preferably,

[0049] The second telescopic rod is hinged to the driving part, so that the expansion and contraction of the second telescopic rod drives the driving part to rotate in the plane where the seat body is located.

[0050] Preferably,

[0051] A third arm is further provided on the first body of the first locking member;

[0052] A control member is provided on the seat body and acts on the third arm to switch the first locking member from the forward engagement state to the separated state.

[0053] Preferably, the control member includes:

[0054] A control shaft passing through the seat body;

[0055] An eccentric block provided at one end of the control shaft and acting on the third arm;

[0056] A control part provided at the other end of the control shaft and capable of driving the control shaft to rotate.

[0057] Preferably, it further includes a control circuit for controlling the first electric telescopic member and the second electric telescopic member;

[0058] The control circuit includes:

[0059] A first line with one end connected to one pole of the power supply and the other end connected to the first electric telescopic member;

[0060] A second line with one end connected to the other pole of the power supply and the other end connected to the first electric telescopic member;

[0061] A first diode provided on the first line;

[0062] A third line with one end connected to the first line and the other end connected to the second electric telescopic member;

[0063] A fourth line with one end connected to the second line and the other end connected to the second electric telescopic member;

[0064] A second diode provided on the third line and having a conduction direction opposite to that of the first diode.

[0065] Preferably, it further includes:

[0066] A sensor for detecting that the second locking member is in the separated state.

[0067] In a third aspect, the present application provides a hub assembly, including:

[0068] A driving mechanism;

[0069] A speed change mechanism that receives the driving force of the driving mechanism;

[0070] A wheel hub that rotates by receiving the driving force provided by the speed change mechanism; and,

[0071] The vehicle lock structure according to any one of the above, wherein the lock ring rotates together with the wheel hub.

[0072] Preferably, the driving mechanism is a motor.

[0073] Compared with the prior art, the vehicle lock structure provided by the present invention can be in a locked state and a separated state simultaneously because the first locking member and the second locking member are interlocked, and the first electric telescopic member is used to act on the first locking member to make the first locking member and the second locking member in a separated state. The second electric telescopic member is used to limit the retraction of the first telescopic rod of the first electric telescopic member. Therefore, when the first locking member and the second locking member are in the locked state, the first electric telescopic member and the second electric telescopic member do not work, the vehicle lock structure has low energy consumption and a long service life; in addition, the second electric telescopic member can limit the retraction of the first telescopic rod. With the cooperation of the two, it is not necessary to rely only on the first electric telescopic member to work to maintain the locked state. Therefore, the locking effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0075] Figure 1 A three-dimensional structure diagram of the locking structure provided by the embodiment of the present invention;

[0076] Figure 2 A schematic diagram of the unlocking state of the locking structure provided by the embodiment of the present invention;

[0077] Figure 3 A schematic diagram of the locking state of the locking structure provided by the embodiment of the present invention;

[0078] Figure 4 For Figure 3 An enlarged schematic diagram at A in

[0079] Figure 5 A schematic diagram of the structure of the second locking member in the embodiment of the present invention;

[0080] Figure 6 A schematic diagram of the structure of the first locking member in the embodiment of the present invention;

[0081] Figure 7 Schematic structural diagram of the buffer in the embodiment of the present invention;

[0082] Figure 8 Schematic perspective view of the locking structure with a limiting member in the embodiment of the present invention;

[0083] Figure 9 Schematic structural diagram of the limiting member in the embodiment of the present invention;

[0084] Figure 10 Schematic diagram of the locked state of the locking structure with a limiting member in the embodiment of the present invention;

[0085] Figure 11 Schematic diagram of the unlocked state of the locking structure with a limiting member in the embodiment of the present invention;

[0086] Figure 12 Schematic diagram of the locking structure with a control member in the embodiment of the present invention;

[0087] Figure 13 Schematic diagram of the installation position of the control member in the locking structure in the embodiment of the present invention;

[0088] Figure 14 Schematic structural diagram of the hub assembly provided by the embodiment of the present invention;

[0089] Figure 15 Schematic structural diagram of the locking structure with the locking ring installed on the end cover provided by the embodiment of the present invention;

[0090] Figure 16 Schematic diagram of the control circuit in the embodiment of the present invention.

[0091] Among them,

[0092] Vehicle lock structure 10, driving mechanism 20, speed change mechanism 30, hub 40,

[0093] Shaft 100, end cover 110,

[0094] Seat body 200, first positioning pin 210, second positioning pin 220, third positioning pin 230, sensor 240

[0095] Locking ring 300, locking groove 310,

[0096] First locking member 410, first body 411, first locking portion 412, first arm 413, second arm 414, third arm 415, second locking member 420, second body 421, second locking portion 422, torsion portion 423,

[0097] First elastic member 510, second elastic member 520,

[0098] The first electric telescopic member 610, the first telescopic rod 611, the second electric telescopic member 620, the second telescopic rod 621, the card slot 622

[0099] The buffer member 700, the driving portion 710, the acting plate 720

[0100] The limiting member 800, the rotating portion 810, the limiting portion 820, the driving portion 830, the engaging portion 831

[0101] The control member 900, the control shaft 910, the eccentric block 920, the control portion 930 Detailed implementation manners

[0102] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0103] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or 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 indirectly connected to the other element.

[0104] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0105] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meanings of "a plurality" and "several" are two or more, unless otherwise specifically defined.

[0106] It should be noted that the structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0107] Please as Figures 1 to 15 As shown, an embodiment of the present invention provides a vehicle lock structure 10, including: a seat body 200 fixedly sleeved on a shaft 100; a lock ring 300 with a lock groove 310 provided on its inner peripheral surface; a first locking member 410 installed on the seat body 200 and having a forward engagement state and a separation state with the lock groove 310; a second locking member 420 installed on the seat body 200, interlocking with the first locking member 410, and simultaneously acting on the lock groove 310 and having a reverse engagement state and a separation state with the lock groove 310; a second elastic member 520 installed on the seat body 200 and acting on the second locking member 420 to keep the second locking member 420 and the first locking member 410 in a forward engagement state and a reverse engagement state; a first electric telescopic member 610 installed on the seat body 200 and acting on the first locking member 410 to make the first locking member 410 and the second locking member 420 in a separation state; a second electric telescopic member 620 installed on the seat body 200 and restricting the retraction of the first telescopic rod 611 of the first electric telescopic member 610.

[0108] Compared with the prior art, for the vehicle lock structure 10 provided by the embodiment of the present invention, since the first locking member 410 and the second locking member 420 can be interlocked to be in an engagement state and a separation state simultaneously, and the first electric telescopic member 610 is used to act on the first locking member 410 to make the first locking member 410 and the second locking member 420 in a separation state, and the second electric telescopic member 620 is used to restrict the retraction of the first telescopic rod 611 of the first electric telescopic member 610. Therefore, when the first locking member 410 and the second locking member 420 are in an engagement state, the first electric telescopic member 610 and the second electric telescopic member 620 do not work, the vehicle lock structure 10 has low energy consumption and a long service life; in addition, the second electric telescopic member 620 can restrict the retraction of the first telescopic rod 611, and the two cooperate, so it is not necessary to rely only on the first electric telescopic member 610 to work to maintain the locking state. Therefore, the locking effect is good.

[0109] 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, while the lock ring 300 rotates with the rotation of the wheel.

[0110] Of course, please as Figure 15As shown, the seat body 200 can also be arranged on the end cover 110, and the end cover 110 is fixed to the vehicle body. At this time, the locking ring 300 is fixed to the shaft 100, and the shaft 100 can rotate with the rotation of the wheel, thereby driving the locking ring 300 to rotate.

[0111] In the embodiment of the present invention, the forward locking state means that when the first locking member 410 acts on the locking groove 310 on the locking ring 300, the locking ring 300 cannot rotate in one direction, and this direction can be the direction of the vehicle moving forward or the direction of the vehicle moving backward. The reverse locking state is relative to the forward locking state. If the forward locking state means that the locking ring 300 cannot rotate in the forward direction of the vehicle, then the reverse locking state means that the locking ring 300 cannot rotate in the backward direction of the vehicle, and vice versa. The settings of the first locking member 410 and the second locking member 420 achieve two-way locking, and the locking effect is good.

[0112] Among them, the locked state refers to the locking state, and the separated state refers to the unlocking state.

[0113] In the embodiment of the present invention, the first electric telescopic member 610 and the second electric telescopic member 620 preferably adopt electromagnets, and the retraction paths of the first telescopic rod 610 and the second telescopic rod 621 of the second electric telescopic member 620 are staggered.

[0114] After the electromagnet is energized, the electromagnet core will extend, and after the power is cut off, the electromagnet core will automatically retract (under the action of the electromagnet spring). Here, the retraction means that after the electromagnet core retracts to the tail, it will extend a certain length towards the tail.

[0115] When the first electric telescopic member 610 and the second electric telescopic member 620 adopt electromagnets and their core retraction paths are staggered, unlocking only requires energizing the first electric telescopic member 610. At this time, the first telescopic rod 611 of the first electric telescopic member 610 extends and acts on the first locking member 410. Since the second electric telescopic member 620 is not energized and the retraction path of the second telescopic rod 621 is staggered with the first telescopic rod 611, after the second telescopic rod 620 retracts, it blocks the retraction of the first telescopic rod 611. After the first electric telescopic member 611 is powered off, it still maintains the extended state and acts on the first locking member 410 to complete the unlocking; locking only requires energizing the second electric telescopic member 620. At this time, the second telescopic rod 621 of the second electric telescopic member 620 extends (that is, the second telescopic rod 621 retracts from the tail), and the retraction path of the first telescopic rod 611 is unobstructed and can automatically retract. After the first telescopic rod 611 retracts in place, the locking is completed. Subsequently, the second electric telescopic member 620 is powered off. Since the first telescopic rod 611 retracts in place and occupies the retraction path of the second telescopic rod 621, the second telescopic rod 621 cannot complete the retraction.

[0116] With the above structure, only the first electric telescopic member 610 and the second electric telescopic member 620 need to be energized separately when unlocking or locking. Compared with the prior art, the energy consumption is greatly reduced and the service life of the locking structure is improved.

[0117] The locking structure provided in the embodiment of the present invention further includes a control circuit for controlling the first electric telescopic member 610 and the second electric telescopic member 620; as shown Figure 16 in the figure, the control circuit includes: a first line with one end connected to one pole A of the power supply and the other end connected to the first electric telescopic member 610; a second line with 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 with one end connected to the first line and the other end connected to the second electric telescopic member 620; a fourth line with 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 having a conduction direction opposite to that of the first diode D1.

[0118] Among them, the current can form a loop through the A pole, the first line, the first electric telescopic member 610, the second line, and the B pole; at this time, since the first diode D1 is conducting and the second diode D2 is not conducting, the first electric telescopic member 610 is energized. The current can also form a loop through the B pole, the fourth line, the second electric telescopic member 620, the third line, and the A pole; at this time, since the second diode D2 is conducting and the first diode D1 is not conducting, the second electric telescopic member 620 is energized.

[0119] It should be noted that the A pole can be the positive pole of the power supply or the negative pole of the power supply. The first diode D1 can be on the first line or on the second line; the second diode D2 can be on the third line or on the fourth line.

[0120] With the above control circuit, the first electric telescopic member 610 and the second electric telescopic member 620 can be combined into two lines for output and docked with an external controller. In this way, when the A pole is positive and the B pole is negative, the first electric telescopic member 610 works (unlocks), and vice versa, the second electric telescopic member 620 works (locks).

[0121] When the locking ring 300 has a load torque on the first locking member 410 and the second locking member 420, the first locking member 410 and the second locking member 420 cannot be switched from the engaged state to the separated state in time. At this time, the load on the first electric telescopic member 610 is relatively large.

[0122] To solve the above problems, the locking structure 10 provided in the embodiments of the present invention further includes: a buffer member 700, one end of which is rotatably disposed on the seat body 200 and the other end of which contacts the first telescopic rod 611; and a first elastic member 510 disposed on the seat body 200, one end of which acts on the buffer member 700 and the other end of which acts on the first locking member 410, so that when the buffer member 700 rotates under the top extension action of the first telescopic rod 611, the first locking member 410 is in a separated state.

[0123] With the above structure, when the locking ring 300 applies a load torque to the first locking member 410 and the second locking member 420, the first telescopic rod 611 extends to top-extension the buffer member 700. At this time, the buffer member 700 rotates and transmits the torsional force to the first elastic member 510. When the load torque applied by the locking ring 300 to the first locking member 410 and the second locking member 420 is relatively small, the first locking member 410 rotates under the action of the first elastic member 510, thereby driving the first locking member 410 to switch from the positive engagement state to the separated state. With such a setting, the first electric telescopic member 610 can be well protected and the service life of the first electric telescopic member 610 can be improved.

[0124] Among them, the first locking member 410 includes: a first body 411 rotatably sleeved on a first positioning pin 210 disposed on the seat body 200; a first locking portion 412 disposed on the first body 411 and acting on the locking groove 310; and a first arm 413 disposed on the first body 411 and acting on the second locking member 420.

[0125] The first body 411 is sleeved on the first positioning pin 210, so that the first body 411 can rotate in the plane where the seat body 200 is located with the first positioning pin 210 as the axis, thereby realizing that the first locking portion 412 is placed in or removed from the locking groove 310.

[0126] The first locking member 410 in the embodiments of the present invention further includes a second arm 414; a driving portion 710 is further disposed on the buffer member 700, and the driving portion 710 acts on the second arm 414 during the process of the first locking member 410 switching from the separated state to the positive engagement state.

[0127] The first elastic member 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, and the other end is disposed on the buffer member 700. When the first body 411 rotates to place the first locking portion 412 in the locking groove 310, the first arm 413 rotates to apply a torsional force to the torsion spring, and the torsion spring transmits the torsional force to the buffer member 700, thereby driving the buffer member 700 to rotate and act on the first telescopic rod 611, having a tendency to retract the first telescopic rod 611. Thus, it is possible to provide assistance for the retraction of the first telescopic rod 611, further improving the service life of the first electric telescopic member 610, and even if the first telescopic rod 611 cannot retract, under the rotational action of the buffer member 700, retraction can be achieved. At the same time, the driving portion 710 can act on the second arm 414 to assist the rotation of the first body 411.

[0128] In an embodiment of the present invention, an action plate 720 in contact with the first telescopic rod 611 is further provided on the buffer member 700. The provision of the action plate 720 can increase the contact area between the buffer member 700 and the first telescopic rod 611, and improve the stability of the action of the first telescopic rod 611 on the buffer member 700.

[0129] The second locking member 420 in an embodiment of the present invention includes: a second body 421 rotatably sleeved on a second positioning pin 220 provided on the seat body 200; a second locking portion 422 provided on the second body 421 and acting on the locking groove 310; a torsion portion 423 provided on the second body 422 and acting on the first arm 413.

[0130] The second body 421 is sleeved on the second positioning pin 220, so that the second body 421 can rotate in the plane where the seat body 200 is located with the second positioning pin 220 as an axis, thereby realizing that the second locking portion 422 is placed in or removed from the locking groove 310.

[0131] Wherein, a third positioning pin 230 is further provided on the seat body 200. The second elastic portion 520 is a torsion spring, and 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 acts on the torsion portion 423 or the second body 421. Thus, when the second locking member 420 is in a separated state, the second elastic portion 520 is in a torsional state. At this time, the torsional force of the second elastic portion 520 will be transmitted to the torsion portion 423 or the second body 421, thereby driving the second body 421 to rotate.

[0132] As an implementation manner, the first arm 413 and the second elastic part 520 are located on both sides of the torsion part 423. Therefore, when the second elastic part 520 provides a torsional force to rotate the second main body 421, the first arm 413 is driven, and thus the first main body 411 is rotated. At this time, both the first locking member 410 and the second locking member 420 are switched to the engaged state; when the first telescopic rod 611 extends out to push against the buffer member 700, the buffer member 700 rotates and applies a torsional force to the first elastic member 510, driving the first main body 411 to rotate. During this process, the first arm 413 acts on the torsion part 423 under the action of the torsional force applied by the first elastic member 510, so that both the first locking member 410 and the second locking member 420 are switched from the engaged state to the separated state. During the switching process of the second locking member 420, a torsional force is applied to the second elastic member 520.

[0133] The locking structure 10 provided by the embodiment of the present invention further includes a limiting member 800 disposed on the second telescopic rod 621 of the second electric telescopic member 620 for limiting the retraction of the first telescopic rod 611.

[0134] With the above structure, the instability caused by the 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 on the first telescopic rod 611 is more stable.

[0135] Among them, the limiting member 800 includes a rotating part 810 rotatably mounted on the first electric telescopic member 610 or the seat body 200; a limiting part 820 disposed on the rotating part 810, having a limiting position for restricting the retraction of the first telescopic rod 611 and a release position where the first telescopic rod 611 can retract; and a driving part 830 driven by the second telescopic rod 621 to drive the rotating part 810 to rotate to switch between the limiting position and the release position.

[0136] With the above structure, the acting area of the second telescopic rod 621 on the first telescopic rod 611 can be increased, and the stability of the limitation on the first telescopic rod 611 can be further improved.

[0137] It should be noted that the limiting position refers to the position where the limiting part 820 is on the return path of the first telescopic rod 611, resulting in the first telescopic rod 611 being unable to retract. This position can be a fixed position or a region. The release position refers to the position where the limiting part 820 is not on the return path of the first telescopic rod 611, resulting in the first telescopic rod 611 being able to retract. This position can be a fixed position or a region.

[0138] Among them, the limiting part 820 is preferably a sheet-like component. The rotating part 810 can be a rod or a sheet-like component.

[0139] In the embodiment of the present invention, the specific action of the second telescopic rod 621 on the driving part 830 is that a clamping groove 622 is circumferentially arranged on the second telescopic rod 621; a clamping part 831 matched with the clamping groove 622 is arranged on the driving part 830.

[0140] Among them, the clamping groove 622 is an annular groove along the circumference of the second telescopic rod 621. The clamping part 831 is a notch arranged on the driving part 830, and the notch is stuck in the annular groove. During the telescopic process of the second telescopic rod 621, as the rotating part 810 rotates, the second telescopic rod 621 slides in the notch.

[0141] As a preference, the driving part 830 is fixedly connected to the rotating part 810 or the limiting part 820. The driving part 830 is an arc-shaped component, and the clamping part 831 is arranged along the arc, that is, the clamping part 831 is also arc-shaped, and the concave surface of the arc-shaped component is arranged towards the side of the first telescopic rod 611. The part of the second telescopic rod 621 corresponding to the concave surface is also arranged as an arc surface matching the concave surface. With such a setting, the second telescopic rod 621 drives the rotating part 810 to rotate more smoothly.

[0142] Of course, the second telescopic rod 621 can also drive the limiting part 800 to rotate by adopting the following structure: the second telescopic rod 621 is hinged to the driving part 830, so that the telescopic movement of the second telescopic rod 621 drives the driving part 830 to rotate in the plane where the seat body 200 is located. With such a setting, it can also make the second telescopic rod 621 drive the rotating part 810 to rotate more smoothly.

[0143] The locking structure may fail, that is, both the first locking part 410 and the second locking part 420 are in the engaged state and cannot be switched to the separated state. To solve this problem, in the embodiment of the present invention, a third arm 415 is further arranged on the first body 411; a control part 900 acting on the third arm 415 is arranged on the seat body 200 to switch the first locking part 410 from the forward engaged state to the separated state.

[0144] With the above structure, the control part 900 can drive the first locking part 410 to rotate through the third arm 415, and switch the first locking part 410 from the engaged state to the separated state. Since the second locking part 420 is linked with the first locking part 410, the second locking part 420 can also be switched from the engaged state to the separated state at the same time. It solves the problem that the locking state cannot be released when the locking structure fails.

[0145] Among them, the control part 900 includes: a control shaft 910 penetrating through the seat body 200; an eccentric block 920 arranged at one end of the control shaft 910 and acting on the third arm 415; a control part 930 arranged at the other end of the control shaft 910 and capable of driving the control shaft 910 to rotate.

[0146] Specifically, when the locking structure 10 fails to release the locked state, the control unit 930 rotates the control shaft 910 to drive the eccentric block 920 to rotate. During the rotation of the eccentric block 920, the protruding portion of the eccentric block 920 acts on the third arm 415, thereby causing the first locking member 410 to rotate. 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, driving the second locking member 420 to rotate, thereby releasing the locked state.

[0147] The locking structure 10 provided by the embodiment of the present invention further includes: a sensor 240 for detecting that the second locking member 420 is in a separated state.

[0148] Wherein, the setting of the sensor 240 can emit a signal when the second locking member 420 is unlocked, accurately identifying whether the second locking member 420 is successfully unlocked.

[0149] The locking structure 10 provided by the embodiment of the present invention can be applied to a wheelchair. When the vehicle is in a ramp locked state, the locking ring 300 has a torque load on the first locking member 410 or the second locking member 420. When unlocking, the first electric telescopic member 610 has moved, but when the first locking member 410 and the second locking member 420 cannot move due to an external load, that is, when the sensor 240 has no signal, at this time, the vehicle can be finely adjusted to control the wheels to shake back and forth, release the load, so that the first locking member 410 and the second locking member 420 can smoothly disengage from the locking groove 310 on the locking ring 300 to achieve the unlocking purpose.

[0150] Please as Figure 14 As shown, the embodiment of the present invention further provides a hub assembly, including: a driving mechanism 20; a speed change mechanism 30 that receives the driving force of the driving mechanism 20; a hub 40 that rotates by receiving the driving force provided by the speed change mechanism 30; and any one of the vehicle lock structures 10 in the embodiment of the present invention, wherein the locking ring 310 rotates together with the hub 40.

[0151] Preferably, the driving mechanism 20 is a motor.

[0152] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle lock structure, characterized in that, Comprising: A seat body fixedly sleeved on a shaft; A locking ring with a locking groove provided on its inner peripheral surface; A first locking member installed on the seat body, having a forward engaging state and a separating state with the locking groove; A second locking member installed on the seat body, interlocking with the first locking member and simultaneously acting on the locking groove, having a reverse engaging state and a separating state with the locking groove; A second elastic member installed on the seat body, acting on the second locking member to keep the second locking member and the first locking member in the forward engaging state and the reverse engaging state; A first electric telescopic member installed on the seat body, acting on the first locking member to make the first locking member and the second locking member in a separated state; A second electric telescopic member installed on the seat body, restricting the retraction of the first telescopic rod of the first electric telescopic member.

2. A vehicle lock structure, characterized in that, Comprising: A seat body provided on an end cover fixed to a vehicle body; A locking ring fixed on a shaft, capable of rotating relative to the seat body, with a locking groove provided on its inner peripheral surface; A first locking member installed on the seat body, having a forward engaging state and a separating state with the locking groove; A second locking member installed on the seat body, interlocking with the first locking member and simultaneously acting on the locking groove, having a reverse engaging state and a separating state with the locking groove; A second elastic member installed on the seat body, acting on the second locking member to keep the second locking member and the first locking member in the forward engaging state and the reverse engaging state; A first electric telescopic member installed on the seat body, acting on the first locking member to make the first locking member and the second locking member in a separated state; A second electric telescopic member installed on the seat body, restricting the retraction of the first telescopic rod of the first electric telescopic member.

3. The car lock structure according to claim 1 or 2, characterized in that, Both the first electric telescopic member and the second electric telescopic member are electromagnets, and the retraction paths of the first telescopic rod and the second telescopic rod of the second electric telescopic member are staggered.

4. The vehicle lock structure according to claim 3, wherein Further comprising: A buffer member with one end rotatably provided on the seat body and the other end contacting the first telescopic rod; A first elastic member provided on the seat body, with one end acting on the buffer member and the other end acting on the first locking member, so that when the buffer member rotates under the pushing action of the first telescopic rod, the first locking member is in the separated state.

5. The vehicle lock structure according to claim 4, characterized in that, The first locking member includes: A first body rotatably sleeved on a first positioning pin provided on the seat body; A first locking portion provided on the first body and acting on the locking groove; A first arm provided on the first body and acting on the second locking member.

6. The vehicle lock structure according to claim 5, wherein The first locking member further includes a second arm; A driving portion is further provided on the buffer member, and the driving portion acts on the second arm during the process of the first locking member switching from the separated state to the forward engaging state.

7. The vehicle lock structure according to claim 4, characterized in that, An acting plate contacting the first telescopic rod is further provided on the buffer member.

8. The vehicle lock structure according to claim 5, wherein, The second locking member includes: A second body rotatably sleeved on a second positioning pin provided on the seat body; A second locking portion provided on the second body and acting on the locking groove; It is arranged on the second body and acts on the torsion part of the first arm.

9. The car lock structure according to any one of claims 1, 2, 4 to 8, characterized in that, It further includes: A limiting member arranged on the second telescopic rod of the second electric telescopic member for limiting the retraction of the first telescopic rod.

10. The vehicle lock structure according to claim 9, characterized in that, The limiting member includes: A rotating part rotatably mounted on the first electric telescopic member or the seat body; A limiting part arranged on the rotating part, having a limiting position for restricting the retraction of the first telescopic rod and a release position where the first telescopic rod can retract; A driving part driven by the second telescopic rod of the second electric telescopic member to drive the rotating part to rotate so as to switch between the limiting position and the release position.

11. The vehicle lock structure according to claim 10, wherein A card slot is circumferentially arranged on the second telescopic rod; A engaging part cooperating with the card slot is arranged on the driving part.

12. The vehicle lock structure according to claim 10, wherein The second telescopic rod is hinged to the driving part so that the telescopic movement of the second telescopic rod drives the driving part to rotate in the plane where the seat body is located.

13. The vehicle lock structure according to any one of claims 1, 2, 4 to 8, 10 to 12, wherein A third arm is further arranged on the first body of the first locking member; A control member acting on the third arm is arranged on the seat body to switch the first locking member from the positive engagement state to the separation state.

14. The car lock structure according to claim 13, characterized in that, The control member includes: A control shaft passing through the seat body; An eccentric block arranged at one end of the control shaft and acting on the third arm; A control part arranged at the other end of the control shaft and capable of driving the control shaft to rotate.

15. The vehicle lock structure according to claim 3, characterized in that, It further includes a control circuit for controlling the first electric telescopic member and the second electric telescopic member; The control circuit includes: A first line with one end connected to one pole of the power supply and the other end connected to the first electric telescopic member; A second line with one end connected to the other pole of the power supply and the other end connected to the first electric telescopic member; A first diode arranged on the first line; A third line with one end connected to the first line and the other end connected to the second electric telescopic member; A fourth line with one end connected to the second line and the other end connected to the second electric telescopic member; A second diode arranged on the third line and having a conduction direction opposite to that of the first diode.

16. The car lock structure according to claim 13, characterized in that, It further includes: A sensor for detecting that the second locking member is in the separation state.

17. A hub assembly, characterized in that, It includes: A driving mechanism; A speed change mechanism receiving the driving force of the driving mechanism; A hub rotating by receiving the driving force provided by the speed change mechanism; And 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 according to claim 17, wherein, The driving mechanism is a motor.

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