CN206539156U - A kind of public bicycles locking drive device - Google Patents

Abstract

The utility model discloses a kind of public bicycles locking drive device, including rotation dead bolt and transmission arm, the rotation dead bolt and transmission arm are rotatably installed in housing by damped part respectively, the lock groove position of wherein rotation dead bolt one end, which is swung, stretches out housing, for locking bicycle locking bar, the other end of rotation dead bolt is abutted with transmission arm one end；The telescopic end of linear telescopic actuator of the other end of the transmission arm with being set in housing is docked.The linear telescopic actuator uses two-way self-closing electromagnetic iron, for relatively conventional transmission device, simplify structure, reduce part, reduce cost, it is to avoid the electric energy loss caused by stage-geared, will not because of a section failure, and have influence on the normal of whole device and use, improve the service life of lockset.And after being unlocked, can be remained on before next car locking, be not in the situation of false-lock under powering-off state, greatly improve the reliability that equipment is used.

Description

A public bicycle locking drive device

technical field

The utility model belongs to the technology of public bicycles, in particular to a locking drive device for public bicycles.

Background technique

With the development and progress of the social economy, the traffic pressure in the city is also increasing. In order to facilitate people's short-distance travel, relieve urban traffic pressure, save energy and reduce emissions, many big cities have introduced public bicycle projects. Public bicycles are not only energy-saving and environmentally friendly. It is easy to use, and can also play the role of fitness and entertainment, so it is loved by the general public. At the same time, the rental and storage of public bicycles are particularly important.

The driving device of public bicycle electronic lock in the prior art is roughly divided into two classes: 1. micro-motor and reduction gear set, 2. electromagnet and ratchet mechanism.

1. Micro-motor and reduction gear set: The micro-motor and reduction gear set are generally used to drive the lock cylinder mechanism to rotate or move linearly, and to control the opening and closing of the electronic lock control mechanism by controlling the motor switch, which is the most used at present. Wide range of drives. For example, Patent No. 201220368971.8 discloses an electronic lock device for vehicles and a cross-bar public bicycle rental system. The electronic lock is driven by a micro-motor, and the micro-motor has a first gear, which is transmitted to the second gear through the third gear. The second gear is provided with a driving lever, and the second gear drives the driving lever to rotate, and the driving lever promotes the transmission arm to turn over a certain angle, so that the dead bolt is detached from the constraint of the transmission arm, thereby realizing unlocking. This traditional electronic lock driving device has very big defect. Micromotors for electronic locks generally use DC 6V micromotors. In order to achieve a large rotational torque of the micromotors, the micromotors generally rotate at high speeds with a speed of up to 2000 rpm. The friction force generated by the coincidence greatly consumes electric energy and motor torque, which not only leads to the limited battery life of the electronic lock, the service life is too short, and it is easy to generate noise, and it is easy to cause wear of the micro-motor gear set and instability of the electronic lock drive device. Moreover, the device contains many parts and has a complex structure. Once a part breaks down, it will affect the normal use of the whole device.

2. Electromagnet and ratchet mechanism: The electromagnet is a kind of electricity that uses the electromagnetic attraction generated by the current-carrying iron core coil to manipulate the mechanical device to complete the expected action. The ratchet mechanism can rotate freely in one direction and realize mechanical self-locking in the reverse direction. Such as the public bicycle automatic locking mechanism disclosed in Patent No. 201120451458.0, the electronic lock is composed of a lock box, a rotating ratchet, a support frame and an electromagnet, the rotating ratchet is provided with a gear, and the support frame is provided with a swingable swing arm , the convex teeth on the swing arm mesh with the gear to realize the one-way rotation mechanical self-locking of the ratchet. When the electromagnet acts on a force to make the swing arm rotate an angle, the gear and the swing arm convex teeth are disengaged to realize electronically controlled unlocking. This device also has great disadvantages. When a public bicycle station has a power outage or breaks down, the user can lock the bicycle by pushing the bicycle lock lever into the lock without knowing it, but it is impossible to return the bicycle by swiping the card in the system to stop the billing. It is also impossible to take out the car and return it at other stations. This situation often causes a lot of troubles for the user and greatly reduces the enthusiasm of the user to continue to borrow the car next time.

Utility model content

The technical problem solved by the utility model is: aiming at the above-mentioned defects existing in the locking process of the existing public bicycles, a new type of public bicycle locking drive device is provided to improve the reliability of bicycle locking and effectively avoid power failure The false locking phenomenon under the condition increases the service life of the locking device.

The utility model adopts following technical scheme to realize:

A public bicycle locking drive device, comprising a rotary lock tongue 1 and a transmission arm 2, the rotation lock tongue 1 and the transmission arm 2 are respectively installed in the housing 4 through damping components, wherein the locking of one end of the rotation lock tongue 1 The slot swings out of the housing to lock the bicycle lock lever. The other end of the rotating lock tongue 1 abuts against one end of the transmission arm 2; end butt.

Further, the rotary lock tongue 1 and the transmission arm 2 are both rotatably assembled on the main column 10 and the auxiliary column 11 on the inner wall of the housing through the sleeve and the torsion spring, and are respectively wound around the main column and the auxiliary column under the action of the torsion spring. The column performs reset swing; the transmission arm 2 abuts against the locking point of the rotary lock tongue when the linear telescopic drive part is retracted, and the linear telescopic drive part is stretched out, and the transmission arm is rotated by the distance extended by the linear telescopic drive part A certain angle, the angle makes the transmission arm bypass the locking point of the rotating dead bolt, the rotating dead bolt is free from the shackles of the driving arm, and the rotating dead bolt is free to swing and reset. At this time, the locking groove of the rotating dead bolt is tilted outward, and the bicycle lock lever Can freely enter or exit from the locking slot.

Further, the inner wall of the housing 4 is also provided with a limit column 12, the limit column 12 is located on the reset path of the transmission arm, and when the linear telescopic drive is retracted, the limit column contacts the reset transmission arm 2 , the other end of the transmission arm is in contact with the locking point of the rotary lock tongue, which is used to define the reset position of the transmission arm.

Further, the telescopic end of the linear telescopic part is close to or in contact with the reset transmission arm in the retracted state, and the telescopic end of the linear telescopic part is as close as possible to one side of the reset transmission arm in the case of reset, so as to facilitate the transmission arm and reduce the stroke of the linear telescopic part.

Further, the telescopic end of the linear telescopic component is in rolling contact with the transmission arm 2 through the rolling connection 9 .

Preferably, the rolling joints are balls or rollers.

In the present utility model, the linear telescopic drive member is an electric telescopic device with extension and retraction retention.

Preferably, the linear telescopic driver is a two-way self-holding electromagnet. When the electromagnet passes a pulse current, the push rod at the telescopic end moves forward, and remains in the extended state after power failure, and then passes a reverse pulse. When the current is flowing, the push rod resets, and it can also remain in the retracted state when the power is cut off.

The unlocking and locking method of the public bicycle locking drive device of the present utility model: the two-way self-holding electromagnet acts a force to make the push rod of the telescopic end stretch out after receiving the electric signal command of the external unlocking, and the push rod overcomes the spring force of the torsion spring After the transmission arm is rotated through an angle, the rotating dead bolt is free from the constraint of the transmission arm, thereby realizing unlocking. And because of the self-holding function of the two-way self-holding electromagnet, the locking drive device keeps the rotating dead bolt in an open state before the next lock-up command is issued. When returning the bicycle, firstly push the bicycle lock lever into the locking groove of the rotating deadbolt, and the rotating deadbolt rotates freely to the locked position under the action of external force. The car personnel returns the car by swiping the card, and the two-way self-holding electromagnet resets after receiving the electric signal instruction of returning the car, and the transmission arm resets under the torsion spring force, and re-constrains the dead bolt to realize locking the car.

Compared with the prior art, the beneficial effect of the utility model is that the public bicycle locking drive device of the utility model adopts a bidirectional self-holding electromagnet, which simplifies the structure, reduces parts, and reduces the Low cost, avoiding the power loss caused by multi-stage gear transmission, will not affect the normal use of the whole device due to a failure of one part, and improve the service life of the lock. And after unlocking, it can keep the open state until the next time the car is locked, and there will be no accidental locking when the power is off, which greatly improves the reliability of the equipment.

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a public bicycle locking drive device in an embodiment.

Fig. 2 is a schematic diagram of the locking state of the public bicycle locking drive device in the embodiment.

Fig. 3 is a schematic diagram of the unlocked state of the public bicycle lock drive device in the embodiment.

Symbols in the figure: 1-rotary lock tongue, 2-transmission arm, 3-bidirectional self-holding electromagnet, 4-housing, 5-main sleeve, 6-main torsion spring, 7-secondary sleeve, 8-pair Torsion spring, 9-rolling connector, 10-main column, 11-secondary column, 12-limiting column, 13-bicycle lock bar.

detailed description

Example

Referring to Fig. 1, the public bicycle locking drive device in the illustration is a preferred embodiment of the present utility model, which specifically includes a rotary lock tongue 1, a transmission arm 2, a two-way self-holding electromagnet 3, a housing 4, and a main sleeve 5 , auxiliary sleeve 7, auxiliary torsion spring 8, rolling connector 9, main column 10, auxiliary column 11 and limit column 12 and other components. The rotating lock tongue 1 and the transmission arm 2 constitute the locking part and the transmission part of the locking device, and the two-way self-holding electromagnet 3 is the driving part of the locking device of this embodiment, and main columns are arranged on the inner wall of the housing 4 in sequence 10. The auxiliary column 11 and the limit column 12 are respectively used to install the rotary lock tongue 1, the transmission arm 2 and limit the transmission arm. The two-way self-holding electromagnet 3 is fixedly installed on the inner wall of the housing, and its telescopic end is The push rod is driven by electromagnetic action to extend and retract the push rod, and the push rod is controlled by the transmission arm 2 to lock or unlock the rotating dead bolt 1 .

In this embodiment, a two-way self-holding electromagnet is used as the driving part. When the electromagnet passes a pulse current, the push rod at the telescopic end moves forward, and remains in the extended state after power failure, and when the electromagnet passes a reverse pulse current , the push rod is reset, and it can also remain in the retracted state when the power is cut off. The two-way self-holding electromagnet is controlled by an integrated circuit board installed in the casing for receiving external signals. The relevant electrical control technology is a common technical means for those skilled in the art, and will not be described in this embodiment.

The two-way self-holding electromagnet is a linear telescopic drive. In other occasions where the utility model is applied, other electric telescopic devices with extension and retraction can also be used.

Specifically, the rotary lock tongue 1 is rotated and set on the main column 10 on the inner wall of the housing 4 through the main sleeve 5 and the main torsion spring 6. The rotary lock tongue 1 in this embodiment is an R-shaped lock tongue, and the two ends are respectively provided with The locking slot and the locking point, the locking slot at one end of the rotary lock tongue 1 swings out of the housing, and is used to lock the bicycle lock lever 13, and the locking point at the other end of the rotary lock tongue 1 is connected to one end of the transmission arm 2 Abutting, the transmission arm keeps locking the position of the rotating lock tongue under the action of the two-way self-holding electromagnet; the transmission arm 2 is rotated and fitted on the auxiliary column 11 on the inner wall of the housing 4 through the auxiliary sleeve 7 and the auxiliary torsion spring 8 One end of the transmission arm 2 is provided with a convex point, through which the convex point contacts with the rotating lock tongue 1, the other end of the transmission arm extends to form a handle, and the two-way self-holding electromagnet controls the push rod to act on the handle. The rotating deadbolt and the transmission arm reset under the action of the main torsion spring and the auxiliary torsion spring, and the limit post 12 is located on the reset path of the transmission arm. When the linear telescopic drive is retracted, the limit post contacts the reset transmission arm 2 Used to define the reset position of the transmission arm.

The two-way self-holding electromagnet 3 is installed on one side of the transmission arm 2, forming an angle of 60° with the horizontal direction. When the transmission arm is reset, the push rod is as close as possible to or touches the handle of the transmission arm in the locked state, so that it is convenient to push The rod pushes the transmission arm and takes full advantage of the travel of the electromagnet. The distance that the push rod of the two-way self-holding electromagnet moves forward makes the transmission arm rotate a certain angle, and this angle meets the requirement that the transmission arm bypasses the locking point of the rotating dead bolt.

In the locked state, the transmission arm and the limit post limit the position, and at the same time the transmission arm is against the rotating lock tongue to overcome the action of the main torsion spring; in the unlocked state, the two-way self-holding electromagnet stretches out to push the transmission arm, and the transmission arm Overcoming the swing under the action of the auxiliary torsion spring, the transmission arm walks around the locking point of the rotating dead bolt, and the rotating dead bolt resets and swings under the action of the main torsion spring, and the locking slot on it is tilted open. To return from the unlocked state to the locked state, you need to push the bicycle lock lever into the locking slot of the rotating deadbolt, and then control the two-way self-holding electromagnet to retract, and the transmission arm returns to the rotating deadbolt under the action of the auxiliary torsion spring. of the lock.

The push rod of the two-way self-holding electromagnet and the handle of the transmission arm in this embodiment need to be in sliding contact frequently, so the telescopic push rod end of the two-way self-holding electromagnet is in rolling contact with the transmission arm 2 through the rolling connector 9, Common rolling joints, such as balls or rollers, convert the sliding contact between the push rod and the transmission arm into rolling contact, improving the service life between parts.

Below in conjunction with Fig. 2 and Fig. 3 describe in detail the working process of the public bicycle system applying the present embodiment:

Driven by the two-way self-holding electromagnet 3, working states such as power-on push-out --- power-off hold --- power-on reset --- power-off hold are realized. The V-shaped locking notch of the rotary deadbolt 1 protrudes from the side wall of the housing, and the purpose is to cooperate with the locking lever 13. In the locked state, the right end of the V-shaped locking notch of the rotary deadbolt 1 is located in the housing 4, its latch is inserted transversely into the lock hole of the lock bar 13, as shown in Figure 2, when in the open state, the V-shaped locking notch of the dead bolt 1 swings obliquely into the housing 4, as shown in Figure 3 . When in the locked state, the left end of the transmission arm 2 cooperates with the right end of the rotary deadbolt 1, and one side of the transmission arm 2 is provided with a limit post 12 to resist the transmission arm 2 under the action of the secondary torsion spring 8, thereby constraining the rotary lock. The effect of tongue 1, the active force of secondary torsion spring 8 is opposite to the active force of main torsion spring 6, so that unblanking gives a return spring force of rotating dead bolt. When the two-way self-holding electromagnet 3 receives the external unlock command, its push rod extends a certain distance, and the push rod overcomes the spring force of the auxiliary torsion spring 8 to make the transmission arm 2 turn over an angle, and the transmission arm bypasses the rotating dead bolt At the locking point, the rotating deadbolt 1 is free from the constraints of the transmission arm 2, and resets and swings under the spring force of the main torsion spring, thereby realizing unlocking. And because of the self-holding function of the two-way self-holding electromagnet 3, it can keep the open state before the next lock-up command is issued. When returning the bicycle, the bicycle lock lever 13 is pushed into the locking notch earlier, and the bicycle is returned by swiping the card. The two-way self-holding electromagnet 3 resets after accepting the order to return the bicycle, and its push rod retracts and resets. 8 Return to the position of the limit post 12 under the action of the spring force, and the left end of the transmission arm 2 is against the locking point of the rotating dead bolt 1 so that it cannot be rotated, so as to realize locking the car.

The above embodiments are descriptions of the present utility model, not limitations of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and description are only descriptions of the present utility model. The specific working principle, under the premise of not departing from the spirit and scope of the present utility model, the present utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the utility model claims protection The scope is defined by the claims appended hereto and their equivalents.

Claims (8)

1. A public bicycle locking drive device is characterized in that: it comprises a rotary dead bolt (1) and a transmission arm (2), and the rotary dead bolt (1) and the transmission arm (2) are rotated and installed on the Inside the housing (4), the locking groove at one end of the rotating lock tongue (1) swings out of the housing to lock the bicycle lock lever, and the other end of the rotating lock tongue (1) and the end of the transmission arm (2) Abutting; the other end of the transmission arm (2) is docked with the telescopic end of the linear telescopic drive set in the housing. 2. A kind of public bicycle locking drive device according to claim 1, said rotating dead bolt (1) and transmission arm (2) are all rotated and assembled on the main column ( 10) and the auxiliary column (11), and reset and swing around the main column and the auxiliary column under the action of the torsion spring; When the stop points are abutted, the linear telescopic driving part is stretched out, and the transmission arm is bypassed at the locking point of the rotating dead bolt, and the rotating dead bolt is free to swing and reset. 3. A kind of public bicycle locking driving device according to claim 2, the inner wall of the housing (4) is also provided with a limit column (12), and the limit column (12) is located at the reset position of the transmission arm. On the path, when the linear telescopic drive is retracted, when the limit post contacts the reset transmission arm (2), the other end of the transmission arm contacts the locking point of the rotating deadbolt, which is used to limit the reset position of the transmission arm. 4. A locking drive device for public bicycles according to claim 3, wherein the telescopic end of the linear telescopic member approaches or contacts the reset transmission arm in the retracted state. 5. A locking drive device for public bicycles according to claim 1, wherein the telescopic end of the linear telescopic component is in rolling contact with the transmission arm (2) through a rolling connector (9). 6 . The public bicycle locking drive device according to claim 5 , the rolling link is a ball or a roller. 7. A public bicycle locking drive device according to any one of claims 1-6, wherein the linear telescopic drive member is an electric telescopic device with extension and retraction retention. 8. A public bicycle locking drive device according to claim 7, wherein said linear telescopic drive member is a bidirectional self-holding electromagnet.