CN210912691U

CN210912691U - Hub lock

Info

Publication number: CN210912691U
Application number: CN201921571040.6U
Authority: CN
Inventors: 杨磊; 张洪波
Original assignee: Shanghai Junzheng Network Technology Co Ltd
Current assignee: Shanghai Junzheng Network Technology Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-03
Anticipated expiration: 2029-09-20

Abstract

A hub lock comprises a fixing plate, a lock pin, a driving motor, a transmission mechanism and a hub claw, wherein the lock pin is arranged on the fixing plate and is rotationally connected with the fixing plate through a first rotating shaft; the driving motor is arranged on the fixed plate; the transmission mechanism is arranged on the fixed plate and is connected with the driving motor and the lock pin; the hub claw covers the fixed plate; the transmission mechanism drives the lock pin to rotate under the driving of the driving motor so that the lock pin extends into or withdraws from the hub claw. The utility model discloses a wheel hub lock is installed and is used in wheel hub, and its disguise is strong, therefore can prevent that the violent destruction from unblanking, and it has very strong security. The utility model discloses a wheel hub lock has dual locking structure, and it can lock dead wheel hub when locking the car, realizes the purpose of safe lock car. Furthermore, the utility model discloses a risk that sudden stop when the wheel hub lock can avoid riding at a high speed, it can improve the security of the in-process of riding.

Description

Hub lock

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lock, in particular to high wheel hub lock of security.

[ background of the invention ]

In order to prevent vehicles such as bicycles, electric bicycles, mopeds, and the like from being stolen, people usually use a lock to lock the vehicle. In daily life, the most common vehicle lock is a horseshoe lock. The lock body of the horseshoe lock is usually annular, an opening is arranged on the horseshoe lock, and when the bicycle is locked, the opening of the locking body of the metal rod lock can prevent the rotation of the hub, so that the bicycle locking effect is achieved; the horseshoe lock, which is externally arranged on the vehicle body, is very easy to be violently damaged, for example, a metal rod can be sheared through a tool to realize violent unlocking, so that the vehicle locking safety of the horseshoe lock is to be improved.

Another more common vehicle lock is an expansion brake lock. The expansion brake lock utilizes the motor to tightly hold the brake pad to prevent the rotation of the wheel hub, thereby playing the effect of locking the vehicle. When the expansion brake lock is used repeatedly, the brake pad of the expansion brake lock is easy to wear, so that the reliability is insufficient, and the phenomena of vehicle locking failure and brake failure can occur. In addition, the expansion brake lock tightly holds the tire by means of the brake pad, and the brake pad can be held tightly only by the drive motor providing high enough power, so that the requirement on the power of the motor is high, and the requirement on the power supply is also high. On the other hand, in the process of high-speed riding, if the vehicle locking action suddenly happens, the expansion brake lock can cause the vehicle to stop suddenly, and certain potential safety hazards exist.

Therefore, the existing vehicle lock has insufficient safety for locking the vehicle, or has insufficient safety to possibly cause potential safety hazard, and the safety is to be improved.

[ summary of the invention ]

The utility model aims at solving the above problem, and provides a high wheel hub lock of security.

In order to achieve the purpose, the utility model provides a wheel hub lock, which is characterized in that the wheel hub lock comprises a fixed plate, a lock pin, a driving motor, a transmission mechanism and a wheel hub claw, wherein the lock pin is arranged on the fixed plate and is rotationally connected with the fixed plate through a first rotating shaft; the driving motor is arranged on the fixing plate; the transmission mechanism is arranged on the fixing plate and is connected with the driving motor and the lock pin; the hub claw covers the fixed plate; the transmission mechanism drives the lock pin to rotate under the driving of the driving motor so that the lock pin extends into or withdraws from the hub claw.

Furthermore, the transmission mechanism comprises a locking piece, a shifting piece, an elastic piece, a first elastic reset piece and a second elastic reset piece, wherein the locking piece is arranged on the fixing plate and is rotatably connected with the fixing plate through a second rotating shaft; the poking piece is arranged on the fixed plate and is rotationally connected with the lock pin; one end of the elastic piece is connected with the poking piece, and the other end of the elastic piece is connected with the driving motor; the first elastic reset piece is connected between the fixing plate and the locking piece; the second elastic reset piece is sleeved on the first rotating shaft and connected with the fixing plate and the lock pin.

Further, the lockpin is close to the one end of only locking piece is equipped with only the locking breach, only locking piece one end with the fixed plate rotates to be connected, and the other end is the free end, only the free end of locking piece can driving motor elastic component with the effect that first elasticity resets is gone into down the card or is shifted out only the locking breach.

Furthermore, one end of the lock pin close to the locking piece is sequentially provided with a guide surface, a leading-in surface and a blocking surface, the leading-in surface is connected with the blocking surface to form an inwards concave locking notch, and the leading-in surface is connected with the guide surface to form an outwards convex corner.

Furthermore, the second elastic reset piece is a torsion spring, a spring body of the second elastic reset piece is sleeved on the first rotating shaft, one end of a force arm of the second elastic reset piece is connected with the fixing plate, and the other end of the force arm of the second elastic reset piece is hooked to the lock pin.

Furthermore, the first elastic resetting piece is a torsion spring, the spring body of the first elastic resetting piece is sleeved on the second rotating shaft, one end of the force arm of the first elastic resetting piece is connected with the fixing plate, and the other end of the force arm of the first elastic resetting piece is hooked on the locking piece.

Further, a cam is connected to an output end of the driving motor, a connecting hole is formed in the position, close to the edge, of the cam, and the elastic piece is connected with the cam through the connecting hole.

Further, the toggle piece comprises a flat plate part and a blocking arm part used for acting on the locking piece to push the locking piece, the flat plate part is connected with the lock pin in a rotating mode, a first hook hole is formed in the flat plate part, one end of the elastic piece is hooked in the first hook hole, and the other end of the elastic piece is connected with the driving motor.

Furthermore, the connecting part of the shifting piece and the elastic piece is far away from the connecting part of the shifting piece and the lock pin, and the connecting part of the shifting piece and the elastic piece is far away from one end of the shifting piece close to the locking piece.

Further, in the process that the lock pin is withdrawn from the hub claw, the pulling force provided by the elastic piece to the lock pin is larger than the torsion force provided by the first elastic resetting piece to the lock pin.

Furthermore, a protruding portion is arranged on one side, close to the hub claw, of the lock pin, a plurality of claw buckling portions are arranged on the hub claw and distributed at equal intervals, the claw buckling portions are distributed circumferentially, the claw buckling portions are spaced from each other to form the bayonet, and the protruding portion is matched with the bayonet.

The utility model discloses a wheel hub lock uses with the wheel hub cooperation of wheel when using, and the fixed plate remains unchanged at the rotation in-process of wheel, and the wheel hub claw rotates along with the rotation of wheel, opens driving motor, drives drive mechanism moves to make the lockpin stretch into or withdraw from the wheel hub claw, and then realize closing the lock or unblank. In the high-speed riding process, even if the locking action suddenly occurs due to faults, the rotating speed of the hub claw is higher than the moving speed of the lock pin, so that the lock pin can be alternately pulled by the hub claw and cannot extend into the hub claw, the phenomenon of high-speed riding sudden stop is avoided, and the riding safety is improved. The utility model discloses a wheel hub lock is installed and is used in wheel hub, and its disguise is strong, therefore can prevent that the violent destruction from unblanking, and it has very strong security. The utility model discloses a wheel hub lock ends lock wheel hub claw through the lockpin, through only lock piece locking lockpin, and it has dual lock structure that ends, and when its lock car, can lock dead wheel hub's rotation completely, as long as only end the lock piece and not release the lockpin, the lockpin just can't release lock wheel hub claw under the exogenic action, and wheel hub just can't rotate, therefore can improve the reliability of locking the car. The utility model discloses a wheel hub lock has the characteristics of security height, practicality are strong, should widely popularize.

[ description of the drawings ]

Fig. 1 is the overall structure schematic diagram of the wheel hub lock of the present invention when installed and used.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic half-section view of fig. 1.

Fig. 4 is a schematic structural view of the hub locker without the hub pawls 40.

Fig. 5 is a schematic plan view of fig. 4.

Fig. 6 is an unlocking schematic diagram, wherein fig. 6A to 6B to 6C are unlocking processes, and fig. 6A is a state diagram when the vehicle is locked; fig. 6B shows a state in which the toggle member 32 pushes the lock stopper 31 to rotate, and fig. 6C shows a state after unlocking.

Fig. 7 is a schematic diagram of locking, wherein fig. 7A to 7B illustrate a locking process, and fig. 7A illustrates a state of the protrusion 11 moving toward the bayonet 41; fig. 7B shows a state diagram when the projection 11 is completely snapped into the bayonet 41.

Fig. 8 is a partial structural view of the hub 60.

Figure 9 is a perspective view of the locking pin.

Fig. 10 is a perspective view of the wave member.

Figure 11 is a perspective view of the locking element.

Fig. 12 is a schematic perspective view of the first rotating shaft or the second rotating shaft.

The reference numbers illustrate: the locking pin 10, the protrusion 11, the second rotating shaft hole 12, the locking notch 13, the guide surface 14, the guide surface 15, the blocking surface 16, the fifth rotating shaft hole 17, the driving motor 20, the cam 21, the connecting hole 211, the transmission mechanism 30, the locking piece 31, the fourth rotating shaft hole 311, the toggle piece 32, the sixth rotating shaft hole 321, the flat plate portion 322, the arm blocking portion 323, the first hook hole 324, the elastic piece 33, the first elastic return piece 34, the second elastic return piece 35, the hub pawl 40, the bayonet 41, the pawl buckling portion 42, the circular plate portion 43, the first limit connecting hole 431, the fixing plate 50, the second limit connecting hole 51, the first rotating shaft hole 52, the upright rod 53, the limiting portion 54, the third rotating shaft hole 55, the hub 60, the mounting portion 61, the shaft hole 62, the connecting boss 63, the first limit connecting portion 64, the first limit step 65, the axle 70, the second limit connecting portion 71, the second limit step 72, the first limit step 81, the third limit step 81, the locking mechanism comprises a second fixed point 82, a first rotating shaft 91, a first shaft part 911, a first fixed plate connecting shaft part 9111, a locking pin connecting shaft part 9112, a first shaft shoulder part 912, a first head part 913, a second head part 914, a second rotating shaft 92, a second shaft part 921, a second fixed plate connecting shaft part 9211, a locking piece connecting shaft part 9212, a second shaft shoulder part 922, a third head part 923, a fourth head part 924, a third rotating shaft 93 and a motor base 100.

[ detailed description ] embodiments

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

As shown in fig. 1 to 12, the wheel hub lock of the present invention includes a lock pin 10, a driving motor 20, a transmission mechanism 30, a wheel hub pawl 40 and a fixing plate 50, wherein the transmission mechanism 30 includes a lock stopper 31, a toggle member 32, an elastic member 33, a first elastic reset member 34 and a second elastic reset member 35. The hub claw 40 and a hub 60 of the vehicle body rotate synchronously, and a bayonet 41 is arranged on the hub claw 40; the fixing plate 50 is used for installing and arranging the lock pin 10, the driving motor 20 and the transmission mechanism 30; the driving motor 20 is used for providing a power source, which can drive the lock pin 10 to move through the transmission mechanism 30, and the lock pin 10 can be clamped into the bayonet 41 through rotation to lock the rotation of the hub 60, so as to achieve the effect of locking the vehicle; in addition, the lock pin 10 can be withdrawn from the bayonet 41 by rotation, thereby achieving an unlocking effect.

As shown in fig. 1 and 3, the wheel hub lock of the present invention is used for being installed in the wheel hub 60 of a bicycle, an electric bicycle, a moped or other vehicles, and is used for limiting the rotation of the wheel hub 60 to realize the locking effect. The hub 60 is a structure existing in a vehicle, and normally, the hub 60 is fitted over the axle 70, and the axle 70 is fixedly connected to a vehicle body, so that the axle 70 does not move and the hub 60 rotates around the axle 70 as a rotation center during riding. A generally cylindrical mounting portion 61 is provided at the center of the hub 60, and a shaft hole 62 is provided at the center of the mounting portion 61; when the hub 60 is coupled to the axle 70, the axle 70 is rotatably coupled to the hub 60 through the shaft hole 62 of the mounting portion 61. The utility model discloses a wheel hub lock install in wheel hub 60's installation department 61's inside, it has very strong disguise.

As shown in fig. 3 and 8, in order to facilitate connection, in the embodiment of the wheel hub lock of the present invention, a connection boss 63 is disposed inside the mounting portion 61 of the wheel hub 60, and the connection boss 63 is disposed along the axial direction of the mounting portion 61 and is located at the axial center of the mounting portion 61. The shaft hole 62 penetrates the connection boss 63. The end of the connecting boss 63 is provided with a first limit connecting part 64, the cross section of the first limit connecting part 64 is non-circular, the first limit connecting part 64 can be sleeved with the hub claw 40 and is in limit connection with the hub claw 40, and the first limit connecting part can prevent circumferential rotation between the hub claw 40 and the hub 60, so that the hub claw 40 and the hub 60 can synchronously rotate. In this embodiment, the limit connection boss 63 is cylindrical, the first limit connection portion 64 is square and has a round corner, and a first limit step 65 is formed between the first limit connection portion 64 and the limit connection boss 63 and can be used for preventing the axial movement between the hub claw 40 and the hub 60.

As shown in fig. 2, the hub claws 40 are adapted to be connected to a hub 60 of a vehicle body, which is rotatable in synchronization with the hub 60. When the hub claws 40 and the hub 60 are connected together and can rotate synchronously, if the hub claws 40 are locked by the lock pins 10 and cannot rotate, the hub 60 cannot rotate, so that the purpose of locking the vehicle can be achieved. Similarly, if the hub pawl 40 is not locked by the lock pin 10, the hub pawl 40 can rotate and the hub 60 can also rotate, and then the hub pawl is in the unlocked state for normal riding. In order to cooperate with the lock pin 10, a plurality of claw fastening portions 42 are arranged on the hub claw 40 and are distributed at equal intervals, and the claw fastening portions 42 are spaced from each other to form a bayonet 41. The number of the claw fastening portions 42 may be set as desired, and the distance between the claw fastening portions 42 may be set as desired, which is not limited in this embodiment. In order to connect with the hub 60, in the present embodiment, the hub claws 40 include a circular plate portion 43 and a claw fastening portion 42 which are integrally formed. The disc portion 43 has a disc shape, and the size thereof matches the size of the inner cavity of the mounting portion 61 of the hub 60. A first stopper connecting hole 431 is provided in the center of the circular plate portion 43, and the first stopper connecting hole 431 is a through hole which is a non-circular hole and thus has a stopper function to prevent circumferential rotation. In this embodiment, the first limiting connection hole 431 is a round square hole, the size of which matches with the size of the first limiting connection portion 64 on the hub 60, and the first limiting connection portion 64 can be sleeved with the first limiting connection portion and abutted against the first limiting step 65, so that the hub claw 40 cannot axially move and circumferentially rotate relative to the hub 60, and the hub claw 40 and the hub 60 synchronously rotate. The claw hook 42 is perpendicular to the circular plate 43 and is distributed on the circumferential edge of the circular plate 43. The length of the pawl 42 may be set as desired. Between the pawl 42 and the disc 43, an open receiving cavity is formed, which can be used for receiving other components.

As shown in fig. 2 and 4, the fixing plate 50 is used for installing and arranging the locking pin 10, the driving motor 20 and the transmission mechanism 30, which are in a stationary state when the hub 60 rotates. In this embodiment, the fixing plate 50 is sleeved on the axle 70, the fixing plate 50 is provided with a second limiting connection hole 51, and the axle 70 is provided with a second limiting connection portion 71. The second limiting connecting hole 51 is a non-circular hole which can be set to be a square hole and the like and has a limiting effect; the cross section of the second limiting connecting part 71 is non-circular, and the shape and the size of the second limiting connecting part are matched with those of the second limiting connecting hole 51; a second limit step 72 is formed between the second limit connecting portion 71 and the axle 70. When the fixing plate 50 is sleeved on the axle 70, the second limiting connection hole 51 is matched with the second limiting connection portion 71, and the fixing plate 50 abuts against the second limiting step 72, so that the fixing plate 50 cannot rotate circumferentially relative to the axle 70, and the fixing plate 50 keeps a static state along with the axle 70 when the hub 60 rotates.

As shown in fig. 2 and 4, the fixing plate 50 has a flat plate shape, and in the present embodiment, has a circular plate shape having a size corresponding to the size of the circular plate portion 43 of the hub claw 40, and is engaged with the end portion of the claw coupling portion 42 of the hub claw 40, so that the driving motor 20, the transmission mechanism 30, and the lock pin 10 can be conveniently disposed in the space between the circular plate portion 43 of the hub claw 40 and the fixing plate 50.

As shown in fig. 4 to 7 and 9, the lock pin 10 is used to lock the hub pawl 40, and is rotatable around a first fixed point 81. The lock pin 10 is provided with a protruding portion 11 matched with the bayonet 41, when the lock pin 10 rotates around the first fixed point 81, the protruding portion 11 can be clamped into the bayonet 41 to lock the hub claw 40, and the protruding portion 11 can be withdrawn from the bayonet 41 to unlock the hub claw 40. In order to provide the lock pin 10, the lock pin 10 is rotatably connected to the fixing plate 50 through a first rotating shaft 91, the position of the first rotating shaft 91 forms the first fixing point 81, and the lock pin 10 can rotate around the first fixing point 81 relative to the fixing plate 50. Specifically, a first rotating shaft hole 52 is formed in the fixing plate 50, and a second rotating shaft hole 12 is formed at one end of the lock pin 10. The sizes of the first rotating shaft hole 52 and the second rotating shaft hole 12 can be set according to requirements, and in the embodiment, the inner diameter of the first rotating shaft hole 52 is slightly smaller than that of the second rotating shaft hole 12. The first shaft hole 52 is in clearance fit with the first shaft 91, and the second shaft hole 12 is in interference fit with the first shaft 91, so that the first shaft 91 and the lock pin 10 move synchronously, and both can rotate relative to the fixing plate 50. In another embodiment, the first rotating shaft hole 52 may be in interference fit with the first rotating shaft 91, and the second rotating shaft hole 12 may be in clearance fit with the first rotating shaft 91, so that the first rotating shaft 91 and the fixing plate 50 are fixed relative to each other, and the lock pin 10 rotates around the first rotating shaft 91, so that the lock pin 10 rotates relative to the fixing plate 50. The engagement manner of the first and second rotation shaft holes 52 and 12 and the first rotation shaft 91 is not limited, and the lock pin 10 may be rotated relative to the fixed plate 50.

As shown in fig. 12, the first rotating shaft 91 includes a first shaft portion 911 and a first shaft shoulder portion 912 which are integrally formed. The first shoulder 912 is disposed at a proximal end of the first shaft portion 911, and the first shoulder 912 divides the first shaft portion 911 into two parts, one part for engaging with the first and second shaft holes 52 and 12, and one part for connecting with the second return elastic member 33. In this embodiment, since the diameters of the first rotating shaft hole 52 and the second rotating shaft hole 12 are not uniform, the first shaft portion 911 includes a first fixing plate connecting shaft portion 9111 and a locking pin connecting shaft portion 9112 having different outer diameters, and a step is formed between the first fixing plate connecting shaft portion 9111 and the locking pin connecting shaft portion 9112, which can be used to limit the axial displacement of the fixing plate 50. The fixing plate 50 is sleeved on the first fixing plate connecting shaft portion 9111 through the first rotating shaft hole 52, and forms a clearance fit. The lock pin 10 is sleeved on the lock pin connecting shaft portion 9112 through the second rotating shaft hole 12, and forms interference fit. The first shaft shoulder portion 912 is disposed at an end of the lock pin connecting shaft portion 9112 away from the first fixing plate connecting shaft portion 9111, and an outer diameter of the first shaft shoulder portion 912 is larger than an outer diameter of the lock pin connecting shaft portion 9112. A step is formed between the first shoulder 912 and the locking pin connecting shaft portion 9112 for limiting the axial displacement of the locking pin 10. A first head portion 913 and a second head portion 914 are provided at both ends of the first shaft portion 911, respectively. The first head 913 is far away from the first fixing plate connecting shaft portion 9111, and a limiting space for sleeving the second elastic resetting piece 35 is formed between the first head 913 and the first shaft shoulder portion 912. The second head portion 914 is close to the first fixed plate connecting shaft portion 9111, and cooperates with the first shoulder portion 912 to restrain the first rotating shaft 91 within the first and second rotating shaft holes 52 and 12, so that the first rotating shaft 91 cannot be loosened in the axial direction thereof. The first head portion 913 may be integrally formed with the first shaft portion 911, or may be connected to the first shaft portion 911, and the first head portion 913 may be a nut member, for example. For easy installation, the second head portion 914 is connected to the first shaft portion 911, and is a nut member.

As shown in fig. 2 to 7, the second elastic restoring member 35 is used to restore the lock pin 10, and has one end connected to the fixing plate 50 and the other end connected to the lock pin 10. In this embodiment, the second elastic restoring member 35 is a torsion spring, and includes a cylindrical spring body and two force arms extending outside the spring body. The spring body of the second elastic restoring member 35 is sleeved on the first shaft portion 911 and is limited between the first shaft shoulder 912 and the first head 913; one force arm of the second elastic reset piece 35 is connected with the fixing plate 50, and the other force arm is hooked on the lock pin 10. For the convenience connect the arm of force of second elasticity piece 35 is reset be equipped with vertical pole setting 53 on fixed plate 50 the tip of pole setting 53 is equipped with restriction portion 54, the arm of force of second elasticity piece 35 links up in on pole setting 53, and by restriction portion 54 limits to can prevent the arm of force slippage of second elasticity piece 35. The upright 53 may be integrally formed with the fixing plate 50, or may be connected to the fixing plate 50, and may be specifically disposed as required. The radial dimension of the limiting portion 54 is greater than that of the upright 53, and it may be formed integrally with the upright 53 or connected to the upright 53, and it may be specifically set as required. The spring body of the second elastic reset piece 35 is sleeved on the first rotating shaft 91, one force arm is connected with the vertical rod 53, and the other force arm is hooked on the locking pin. When the lock pin 10 rotates around the first fixed point 81, the second elastic restoring member 35 is compressed and elastically deformed; when the lock pin 10 loses the external force limitation, it can return to the initial position under the elastic force of the second elastic reset piece 35.

As shown in fig. 2 to 7 and 9, the lock pin 10 has an arc plate shape and is rotatable around the first fixed point 81. The convex part 11 is arranged on one side wall of the lock pin 10 far away from the arc center of the lock pin and is positioned in the middle of the side wall. The shape of the protruding portion 11 can be set as required, as long as it can be snapped into the bayonet 41 to restrict the rotation of the hub claw 40. In this embodiment, the protrusion 11 is a rectangular block shape, and is integrally formed with the lock pin 10.

As shown in fig. 2 to 7 and 9, a locking notch 13 is formed at an end of the lock pin 10 away from the first fixed point 81, that is, a free end of the lock pin 10, and the locking notch 13 is configured to cooperate with the locking member 31 to lock the lock pin 10 from rotating. The locking notch 13 is an inward concave notch, and the specific shape thereof can be set according to the requirement, and in this embodiment, a guide surface 14, a lead-in surface 15 and a blocking surface 16 are sequentially provided on the free end of the lock pin 10. The lead-in surface 15 and the stop surface 16 are joined to form an inwardly concave notch, i.e. the locking notch 13. The guide surface 15 engages with the guide surface 14 to form a convex corner for sliding the locking element 31 into or out of the locking recess 13. The leading-in surface 15 and the blocking surface 16 can be a plane or a non-plane, and can be specifically set according to needs, in the implementation, the leading-in surface 15 and the blocking surface 16 are both planes, and are connected with each other by an obtuse angle rather than a round angle, so that the locking piece 31 can be prevented from reversely sliding out from one side of the blocking surface 16 when the acting force is too large. The guide surface 14 serves as a guide to facilitate the sliding of the locking element 31 into or out of the locking recess 13. The guiding surface 14 may be a plane or a non-plane, and in this embodiment, it is a plane surface, and it is engaged with the guiding surface 15 with a rounded corner, so as to facilitate the locking element 31 to slide into or out of the locking notch 13.

As shown in fig. 2 to 7 and 11, the locking member 31 is used to lock the rotation of the lock pin 10, and is rotatable around a second fixed point 82. The second fixed point 82 is remote from the free end of the lock pin 10. The end of the locking member 31 remote from the second point 82, i.e. the free end of the locking member 31, faces the free end of the locking pin 10. When the locking member 31 rotates around the second fixed point 82, the free end of the locking member 31 can be inserted into the locking notch 13 to lock the lock pin 10. In this embodiment, only when the protrusion 11 of the lock pin 10 is completely inserted into the notch 41, the free end of the locking member 31 can slide into the locking notch 13 along the introduction surface 15 to lock the rotation of the lock pin 10.

As shown in fig. 2 to 7, in order to install the locking member 31, the locking member 31 is rotatably connected to the fixing plate 50 through a second rotating shaft 92, the second rotating shaft 92 is located at a position forming the second fixed point 82, and the locking member 31 is rotatable around the second fixed point 82 relative to the fixing plate 50. Specifically, a third rotating shaft hole 55 is formed in the fixing plate 50, a fourth rotating shaft hole 311 is formed in the locking member 31, and the third rotating shaft hole 55 is far away from the free end of the lock pin 10. The third rotation shaft hole 55 and the fourth rotation shaft hole 311 may be set according to the requirement, and in this embodiment, the inner diameter of the third rotation shaft hole 55 is slightly smaller than the inner diameter of the fourth rotation shaft hole 311. The third rotating shaft hole 55 is in clearance fit with the second rotating shaft 92, and the fourth rotating shaft hole 311 is in interference fit with the second rotating shaft 92, so that the second rotating shaft 92 and the locking piece 31 can move synchronously, and both can rotate relative to the fixing plate 50. In other embodiments, the third rotating shaft hole 55 may be in interference fit with the second rotating shaft 92, and the fourth rotating shaft hole 311 may be in clearance fit with the second rotating shaft 92, so that the second rotating shaft 92 and the fixing plate 50 are relatively fixed, the locking member 31 rotates around the second rotating shaft 92, and the locking member 31 rotates relative to the fixing plate 50. The engagement manner of the third rotating shaft hole 55, the fourth rotating shaft hole 311 and the second rotating shaft 92 is not limited, and it is sufficient that the locking member 31 rotates relative to the fixing plate 50.

As shown in fig. 12, the second rotating shaft 92 includes a second shaft portion 921 and a second shaft shoulder portion 922 which are integrally formed. The second shoulder portion 922 is disposed at a proximal end portion of the second shaft portion 921, and the second shoulder portion 922 divides the second shaft portion 921 into two portions, one portion for engaging with the third and fourth rotation shaft holes 55 and 311, and the other portion for connecting with the first return elastic member 33. In this embodiment, since the third rotating shaft hole 55 and the fourth rotating shaft hole 311 have different diameters, the second shaft portion 921 includes a second fixing plate connecting shaft portion 9211 and a locking member connecting shaft portion 9212 having different outer diameters, and a step is formed between the second fixing plate connecting shaft portion 9211 and the locking member connecting shaft portion 9212, and the step can be used to limit the axial displacement of the fixing plate 50. The fixing plate 50 is sleeved on the second fixing plate connecting shaft portion 9211 through the third rotating shaft hole 55, and forms a clearance fit. The locking piece 31 is sleeved on the locking piece connecting shaft portion 9212 through the fourth rotating shaft hole 311, and forms an interference fit. The second shoulder portion 922 is disposed at an end of the locking member connecting shaft portion 9212 away from the second fixing plate connecting shaft portion 9211, and an outer diameter of the second shoulder portion 922 is greater than an outer diameter of the locking member connecting shaft portion 9212. The second shoulder portion 922 and the locking member connecting shaft portion 9212 form a step therebetween, which is used to limit the axial displacement of the locking member 31. A third head 923 and a fourth head 924 are provided at both ends of the second shaft section 921, respectively. The third head 923 is far away from the second fixing plate connecting shaft portion 9211, and a limiting space for sleeving the first elastic resetting piece 34 is formed between the third head and the second shaft shoulder 922. The fourth head 924 is close to the second fixed plate connecting shaft portion 9211, and cooperates with the second shoulder 922 to restrain the second rotating shaft 92 in the third and fourth rotating shaft holes 55, 311, so that the second rotating shaft 92 cannot be loosened in the axial direction thereof. The third head portion 923 may be integrally formed with the second shaft portion 921, or may be connected to the second shaft portion 921, for example, the third head portion 923 may be a nut member. For easy installation, the fourth head 924 is connected to the second shaft part 921, and is a nut member.

As shown in fig. 2 to 7, the first elastic restoring member 34 serves to restore the locking member 31, and has one end connected to the locking member 31 and the other end connected to the fixing plate 50. In this embodiment, the first elastic restoring member 34 is a torsion spring, and includes a cylindrical spring body and two force arms extending outside the spring body. The spring body of the first elastic restoring member 34 is sleeved on the second shaft portion 921 and is limited between the second shaft shoulder portion 922 and the third head portion 923; one force arm of the first elastic restoring element 34 is connected to the fixing plate 50, and the other force arm thereof is hooked to the free end of the locking element 31. When the force arm of the first elastic restoring element 34 is connected to the fixing plate 50, the connection mode thereof may refer to the connection mode of the force arm of the second elastic restoring element 35 and the fixing plate 50, which is not described herein again. One end of the first elastic reset piece 34 is connected with the driving motor 20, and the other end is connected with the free end of the locking piece 31. When the locking piece 31 rotates, the first elastic resetting piece 34 can bear a certain torsion; when the locking member 31 loses the external force limitation, the torsion force borne by the first elastic restoring member 34 can assist the locking member 31 to restore.

As shown in fig. 2 to 7 and 9, the toggle member 32 is configured to push the locking member 31 to rotate around the second fixed point 82, and to drive the lock pin 10 to rotate around the first fixed point 81 to achieve a locking or unlocking effect. The toggle member 32 is rotatably connected to a free end of the lock pin 10, and is rotatable relative to the lock pin 10. In order to provide the toggle member 32, a fifth rotating shaft hole 17 is formed in the free end of the lock pin 10, a sixth rotating shaft hole 321 is formed in the toggle member 32, and the toggle member 32 is rotatably connected to the lock pin 10 through a third rotating shaft 93. The third rotating shaft 93 is in clearance fit with at least one of the fifth rotating shaft hole 17 and the sixth rotating shaft hole 321, and the specific fit mode can be set as required, so that the toggle member 32 can rotate relative to the lock pin 10.

As shown in fig. 2 to 7, the toggle member 32 includes three ends, one end of the toggle member is rotatably connected to the latch 10, the other end of the toggle member contacts the locking member 31 to push the locking member 31, and the other end of the toggle member is connected to the elastic member 33; the connecting part of the toggle piece 32 and the elastic piece 33 is far away from the connecting part of the toggle piece 32 and the lock pin 10, and is far away from one end of the toggle piece 32 close to the locking piece 31. In this embodiment, as shown in fig. 10, the toggle member 32 includes a flat plate portion 322 and a stopper arm portion 323 that are integrally formed. The arm wall is perpendicular to the plate portion 322, and extends from one side surface of the plate portion 322 to be in contact or near contact with the fixing plate 50. The arm blocking portion 323 is adapted to act on the lock stopper 31 to push the lock stopper 31 to rotate. The flat plate portion 322 is provided with the sixth rotation shaft hole 321, and the sixth rotation shaft hole 321 is spaced from the arm stopper portion 323 by a predetermined distance. The flat plate portion 322 is provided with a first hook hole 324 for hooking the elastic member 33. The first hook hole 324 is far from the sixth rotating shaft hole 321 and the arm blocking portion 323.

As shown in fig. 2 to 7, the elastic member 33 is connected between the toggle member 32 and the driving motor 20. The elastic member 33 may be a spring, a torsion spring, or the like having elasticity. One end of the elastic element 33 is hooked in the first hook hole 324, and the other end is hooked at the output end of the driving motor 20.

As shown in fig. 2 to 7, the driving motor 20 is used for providing power, and a known driving motor 20 may be used, and in this embodiment, a dc motor is used. The driving motor 20 is fixed to the fixing plate 50 by a motor base 100. The shape of the motor base 100 may be set according to the shape of the driving motor 20, which is fixed to the fixing plate 50 in a known manner. The driving motor 20 is horizontally disposed, and its axial direction is parallel to the fixing plate 50. The driving motor 20 is disposed on a side of the lock pin 10 away from the protrusion 11, and an output end of the driving motor 20 is spaced from the toggle element 32 and the locking element 31 by a certain distance. To facilitate the connection between the elastic member 33 and the first elastic restoring member 34, a cam 21 is connected to an output end of the driving motor 20. The cam 21 is fixedly connected to a free end of the rotating shaft of the driving motor 20 in a known manner, and is rotatable with the rotating shaft of the driving motor 20. The cam 21 may be sized as desired. The cam 21 is provided with a connection hole 211 for hooking the elastic member 33. The elastic member 33 is coupled to the driving motor 20 by hooking in the coupling hole 211 of the cam 21.

As shown in fig. 1 to 12, the toggle element 32, the locking element 31, the elastic element 33, the first elastic return element 34, and the second elastic return element 35 form the transmission mechanism 30; the transmission mechanism 30, the driving motor 20, the lock pin 10, the fixing plate 50, the hub pawl 40, the first rotating shaft 91, the second rotating shaft 92 and the third rotating shaft 93 form a hub lock. The general assembly relationship of the hub lock is as follows:

as shown in fig. 2, 3 and 4, the hub claws 40 are aligned with the fixing plate 50, and an installation space is formed therebetween to accommodate the transmission mechanism 30, the driving motor 20 and the lock pin 10. The lock pin 10 is rotatably connected to the fixing plate 50 through a first rotating shaft 91, and the first rotating shaft 91 and the lock pin 10 can rotate relative to the fixing plate 50; the lock pin 10 is provided with a convex part 11 facing the bayonet 41 of the hub claw 40, and the convex part can be clamped into the bayonet 41 of the hub claw 40 and can be withdrawn from the bayonet 41 of the hub claw 40; the locking piece 31 is rotatably connected to the fixing plate 50 through a second rotating shaft 92, and the second rotating shaft 92 and the locking piece 31 can rotate relative to the fixing plate 50; the free end of the locking member 31 faces the free end of the locking pin 10; a locking notch 13 is arranged at the free end of the lock pin 10, and the free end of the locking piece 31 can be clamped into the locking notch 13 and withdrawn from the locking notch 13; the toggle piece 32 is rotatably connected to the free end of the lock pin 10 through the third rotating shaft 93, and is in contact with the free end of the locking piece 31; the toggle piece 32 can push the locking piece 31 to rotate around the second fixed point 82; the elastic element 33 is connected with the driving motor 20 and the toggle element 32, the first elastic reset element 34 is connected with the fixed plate 50 and the free end of the locking element 31, and the second elastic reset element 35 is connected with the fixed plate 50 and the locking pin 10.

When in use, as shown in fig. 3, the hub is locked in the hub 60, and the hub claws 40 and the hub 60 are matched through the first limit connecting holes 431 and the first limit connecting parts 64 to form limit connection, so that the hub claws 40 and the hub 60 can synchronously rotate; the fixing plate 50 is in limit connection with the axle 70 through the second limit connecting hole 51 and the second limit connecting part 71, so that the fixing plate 50 can be kept in a static state during riding of the vehicle.

The utility model discloses a wheel hub lock's theory of operation does: the driving motor 20 drives the cam 21 to rotate in forward rotation or reverse rotation, the cam 21 drives the elastic part 33 to move in the rotating process, the toggle part 32 is further driven to move, the toggle part 32 drives the lock pin 10 to move, and the lock pin 10 pushes the locking part 31 to move while moving; when the protrusion 11 of the lock pin 10 is clamped into the bayonet 41 and the locking piece 31 is clamped into the locking notch 13 of the lock pin 10 (as shown in fig. 6A), the locking piece 31 locks the lock pin 10, the lock pin 10 locks the hub pawl 40, and the hub 60 cannot rotate under the double locking action, so that the locking effect is realized; when the driving motor 20 is started again to drive the cam 21 to rotate, the protrusion 11 of the lock pin 10 can be withdrawn from the bayonet 41 (as shown in fig. 6C), the lock pin 10 releases the hub pawl 40, and the hub 60 can rotate to realize the unlocking effect.

Specifically, as shown in fig. 6, the unlocking principle of the wheel hub lock of the present invention is as follows:

as shown in fig. 6A, when the hub lock is in the locked state, the protrusion 11 of the lock pin 10 is caught in the notch 41 of the hub claw 40, and the free end of the locking piece 31 is caught in the locking notch 13 of the lock pin 10. When receiving the unlocking signal, the driving motor 20 drives the cam 21 to rotate in a direction away from the elastic member 33 to stretch the elastic member 33. In this embodiment, the driving motor 20 drives the cam 21 to rotate 180 ° clockwise when the direction shown in the drawing is set as the standard. When unlocking from the locked state, there may be two cases in which the projecting portion 11 of the lock pin 10 is locked by the boss claw 40 and cannot be directly withdrawn from the bayonet 41, and the projecting portion 11 is not locked by the boss claw 40 and can be directly withdrawn from the bayonet 41, so that the unlocking time is divided into two cases:

1. when the lug 11 is blocked by the hub claw 40 and cannot be directly withdrawn from the bayonet 41: the driving motor 20 drives the cam 21 to rotate, so that the elastic member 33 is stretched to be in a stretched state, and the first return elastic member 34 is in a compressed state; when the user pushes the vehicle to make the hub 60 rotate slightly, the pressure applied to the protrusion 11 of the lock pin 10 disappears, and the protrusion 11 is not locked by the hub claw 40; when the elastic member 33 is stretched, as shown in fig. 6B, the elastic member 33 rotates around the third rotating shaft 93, the rotation of the elastic member 33 will push the locking member 31 to rotate around the second rotating shaft 92, and the compressed first return elastic member 34 can assist the rotation of the locking member 31, so as to push the locking member 31 to withdraw from the locking notch 13, so as to release the rotation of the lock pin 10; when the elastic member 33 is in a stretched state, and the pulling force of the elastic member 33 is greater than the twisting force provided by the second elastic restoring member 35 to the lock pin 10, so that the lock pin 10 can be pulled away from the bayonet 41 by the pulling force of the elastic member 33, and thus the lock pin 10 without the restriction of the locking member 31 can be pulled by the elastic member 33, so that the protrusion 11 of the lock pin 10 can be withdrawn from the bayonet 41 (as shown in fig. 6C); when the hub claws 40 lose the locking of the projections 11, the hub 60 can rotate freely, thereby achieving the unlocking effect.

2. When the protruding part 11 is not locked by the hub claw 40 and can be directly withdrawn from the bayonet 41: since the pulling force of the elastic member 33 is greater than the twisting force of the second elastic restoring member 35, when the rotation of the driving motor 20 pulls the elastic member 33, the elastic member 33 pulls the lock pin 10 and pushes the locking member 31, so that the locking member 31 is withdrawn from the locking notch 13 and the protrusion 11 is withdrawn from the bayonet 41 (as shown in fig. 6B and 6C), thereby achieving the unlocking effect.

As shown in fig. 7, the locking principle of the wheel hub lock of the present invention is as follows:

when the vehicle is unlocked from the vehicle locking state, the elastic piece 33 is in a natural state, and the second elastic reset piece 35 is in a compressed state due to the rotation of the lock pin 10; when receiving the locking signal, the driving motor 20 drives the cam 21 to rotate, and in this embodiment, the driving motor 20 drives the cam 21 to rotate 180 ° counterclockwise when the direction shown in the drawing is the right time. Since there are two possible cases of the projection 11 of the lock pin 10 when locking from the unlocked state, the projection 11 being aligned with the bayonet 41 and the projection 11 being misaligned with the bayonet 41, the lock is turned off in two cases:

1. when the projection 11 is aligned with the bayonet 41: the driving motor 20 drives the cam 21 to rotate, and the latch 10 is pushed by the elastic member 33, so that the protrusion 11 moves towards the bayonet 41 (as shown in fig. 7A); the second elastic reset piece 35 in a compressed state simultaneously provides acting force for the lock pin 10, and assists the lock pin 10 to reset so that the protruding part 11 moves towards the direction of the bayonet 41, and further the protruding part 11 can be clamped into the bayonet 41 to stop the rotation of the lock hub claw 40; in addition, when the lock pin 10 moves towards the bayonet 41, the lock pin 40 pushes the locking piece 31, so that the first elastic resetting piece 34 is compressed, and the locking piece 31 is driven to rotate by the first elastic resetting piece 34 in a natural state; when the protrusion 11 of the lock pin 10 is completely inserted into the bayonet 41, the free end of the locking member 31 can be inserted into the locking notch 13 (as shown in fig. 7B) by the first elastic restoring member 34 to lock the rotation of the lock pin 10, thereby achieving the locking effect.

2. When the projection 11 is not aligned with the bayonet 41: when the protrusion 11 is not aligned with the notch 41, the protrusion 11 cannot directly fall into the notch 41, so that the elastic member 33 enters a compressed state when the driving motor 20 rotates counterclockwise. When the vehicle is pushed, the bayonet 41 is rotated to correspond to the protruding portion 11 (as shown in fig. 7A), the elastic member 33 in a compressed state directly pushes the lock pin 10, so that the protruding portion 11 of the lock pin 10 is snapped into the bayonet 41; the second elastic reset piece 35 in the compressed state also provides an auxiliary acting force for the rotation of the lock pin 10 so as to assist the protrusion 11 of the lock pin 10 to be clamped into the bayonet 41; when the lock pin 10 moves towards the bayonet 41, the lock pin 40 pushes the locking piece 31, so that the first elastic resetting piece 34 is compressed; when the protrusion 11 of the lock pin 10 is inserted into the bayonet 41, the first elastic reset element 34 in a compressed state is reset, and drives the locking element 31 to rotate; at this time, the free end of the locking member 31 can be snapped into the locking notch 13 (as shown in fig. 7B) under the action of the first elastic reset member 34 to lock the rotation of the lock pin 10, thereby achieving the locking effect.

When the wheel hub lock of the utility model locks the vehicle, the lock pin 10 can stop the rotation of the wheel hub pawl 40, and the lock stopping piece 31 can stop the rotation of the lock pin 10; when the free end of the locking member 31 is locked into the locking notch 13 of the lock pin 10 to prevent the lock pin 10 from rotating, the lock pin 10 cannot be forced to rotate by external force, so that the lock pin 10 can lock the hub pawl 40, and thus the hub 60 can be locked to improve the safety of locking the vehicle. In the locking process, only when the protrusion 11 of the lock pin 10 is completely clamped into the bayonet 41, the free end of the locking piece 31 can be clamped into the locking notch 13 to lock the lock pin 10; when the protruding part 11 of the lock pin 10 is not completely clamped into the bayonet 41, the free end of the locking piece 31 cannot be clamped into the locking notch 13, at this time, the lock pin 10 lacks the limitation of the locking piece 31, and the lock pin 10 can move under the action of external force; thus, when riding fast, if the locking action occurs due to a fault, at this time, since the rotation speed of the hub claw 40 is greater than the clamping speed of the lock pin 10, the protrusion 11 of the lock pin 10 is alternatively pulled up by the claw fastening part 42 of the hub claw 40 to exit the bayonet 41 when not completely clamped into the bayonet 41, thereby avoiding sudden locking during high-speed riding to cause sudden stop and danger.

The utility model discloses a wheel hub lock, it is installed and is used in wheel hub 60, and its disguise is high, therefore is difficult to be destroyed by violence, can improve the security and the theftproof nature of locking the car. The utility model discloses a wheel hub lock has dual locking structure, and it can lock dead wheel hub 60 when locking the car, realizes the purpose of safe lock car. Furthermore, the utility model discloses a risk that sudden stop when the wheel hub lock can avoid riding at a high speed, it can improve the security of the in-process of riding.

While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the invention.

Claims

1. A hub lock, characterized in that it comprises:

a fixing plate (50);

the lock pin (10) is arranged on the fixing plate (50) and is rotationally connected with the fixing plate (50) through a first rotating shaft (91);

a driving motor (20) disposed on the fixing plate (50);

the transmission mechanism (30) is arranged on the fixing plate (50) and is connected with the driving motor (20) and the lock pin (10);

a hub claw (40) covering the fixing plate (50);

the transmission mechanism (30) drives the lock pin (10) to rotate under the driving of the driving motor (20) so that the lock pin (10) extends into or retracts from the hub claw (40).

2. Hub lock according to claim 1, wherein the transmission mechanism (30) comprises:

the locking piece (31) is arranged on the fixing plate (50) and is rotationally connected with the fixing plate (50) through a second rotating shaft (92);

the poking piece (32) is arranged on the fixing plate (50), and the poking piece (32) is rotationally connected with the lock pin (10);

one end of the elastic piece (33) is connected with the poking piece (32), and the other end of the elastic piece is connected with the driving motor (20);

a first elastic reset piece (34) connected between the fixing plate (50) and the locking piece (31);

and the second elastic resetting piece (35) is sleeved on the first rotating shaft (91) and is connected with the fixing plate (50) and the lock pin (10).

3. The hub lock according to claim 2, characterized in that the end of the locking pin (10) close to the locking element (31) is provided with a locking notch (13), one end of the locking element (31) is rotatably connected to the fixing plate (50), and the other end is a free end, and the free end of the locking element (31) can be inserted into or removed from the locking notch (13) under the action of the driving motor (20), the elastic element (33) and the first elastic restoring element (34).

4. A hub lock according to claim 3, wherein the locking pin (10) is provided with a guide surface (14), a lead-in surface (15) and a stop surface (16) at an end adjacent to the locking element (31), the lead-in surface (15) and the stop surface (16) engaging to form the concave locking notch (13), and the lead-in surface (15) and the guide surface (14) engaging to form the convex corner.

5. The hub lock of claim 2, wherein the second elastic restoring member (35) is a torsion spring, the spring body of the second elastic restoring member (35) is sleeved on the first rotating shaft (91), one end of the arm of force is connected with the fixing plate (50), and the other end is hooked to the lock pin (10).

6. The hub lock of claim 2, wherein the first elastic restoring member (34) is a torsion spring, the spring body of the first elastic restoring member (34) is sleeved on the second rotating shaft (92), one end of the arm of force is connected to the fixing plate (50), and the other end is hooked to the locking member (31).

7. The hub lock according to claim 2, characterized in that a cam (21) is connected to the output end of the driving motor (20), a connecting hole (211) is provided at a position of the cam (21) near the edge, and the elastic member (33) is connected to the cam (21) through the connecting hole (211).

8. The hub lock of claim 2, wherein the toggle member (32) comprises a flat plate portion (322) and a stop arm portion (323) for acting on the locking member (31) to push the locking member (31), the flat plate portion (322) is rotatably connected to the locking pin (10), a first hook hole (324) is formed in the flat plate portion (322), one end of the elastic member (33) is hooked in the first hook hole (324), and the other end of the elastic member is connected to the driving motor (20).

9. A hub lock according to claim 2, wherein the connection point of the toggle member (32) and the resilient member (33) is located away from the connection point of the toggle member (32) and the locking pin (10), and the connection point of the toggle member (32) and the resilient member (33) is located away from the end of the toggle member (32) adjacent to the locking member (31).

10. A hub lock according to claim 2, wherein the pulling force provided by the resilient member (33) to the locking pin (10) during the process of the locking pin (10) exiting the hub pawl (40) is greater than the twisting force provided by the first resilient return member (34) to the locking pin (10).

11. The hub lock according to claim 1, characterized in that the locking pin (10) is provided with a protrusion (11) on a side thereof adjacent to the hub pawl (40), the hub pawl (40) is provided with a plurality of equally spaced pawl catches (42), the pawl catches (42) are circumferentially arranged, the pawl catches (42) are spaced apart from each other to form a bayonet (41), and the protrusion (11) is matched with the bayonet (41).