CN211342158U - Spring bolt, switch control mechanism for lock, lock and bicycle - Google Patents

Abstract

Embodiments of the present disclosure relate to a locking tongue for a switch control mechanism of a lock, a switch control mechanism for a lock, a lock and a bicycle. This spring bolt includes: a plastic driving member including a driving engagement portion such that the latch bolt is moved in the switch control mechanism by a driving force applied to the driving engagement portion; and a metal rod passing through and fastened to the plastic driver, the metal rod including a first metal rod portion for mounting the spring and a second metal rod portion for limiting movement of the locking ring.

Description

Spring bolt, switch control mechanism for lock, lock and bicycle

Technical Field

Embodiments of the present disclosure relate generally to the field of locks, and more particularly, to a latch bolt for a switch control mechanism of a lock, a switch control mechanism for a lock, and a bicycle.

Background

With the increase of the travel demand of people, the demand of vehicles is also increasing. The bicycle as a convenient and fast vehicle also becomes one of the important vehicles for people to go out daily. Bicycles are typically fitted with horseshoe-shaped locks. Typically, the lock is disposed on the bicycle frame and is provided with a lock ring groove and a lock ring that slides therein. After the user closes the lock, the lock tongue is inserted into a lock ring groove in the lock ring, so that the lock ring can realize the function of locking the bicycle by blocking the spokes of the wheel.

The importance of the lock is self-evident for a bicycle. The existing lockset generally uses a lock tongue made of pure metal, so that the lock tongue is heavy and is not easy to move. Meanwhile, the heavy bolt requires a driving motor to provide higher driving power to move the bolt, and the output power of the motor is proportional to the volume of the bolt, which results in the increase of the overall volume of the lock.

In addition, the matching part between the metal bolt and the driving cam is easily worn due to the material characteristics. Especially, after the tool to lock used for a long time, the spring bolt is worn and torn with the cooperation portion of drive cam for drive cam can't drive the spring bolt and remove, causes the tool to lock can not normally open. Frequent lock faults not only cause inconvenience for users to use the bicycle, but also increase the operation and maintenance cost of bicycle managers

To this end, there is an urgent need in the art for improvements to the locking bolt of a lock.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present disclosure provide a locking tongue for a switch control mechanism of a lock, a switch control mechanism for a lock, a lock and a bicycle to solve or at least partially alleviate at least some of the problems of the prior art.

In a first aspect of the disclosure, a deadbolt for a switch control mechanism of a lock is provided. This spring bolt includes: a plastic driving member including a driving engagement portion such that the latch bolt is moved in the switch control mechanism by a driving force applied to the driving engagement portion; and a metal rod passing through and fastened to the plastic driver, the metal rod including a first metal rod portion for mounting the spring and a second metal rod portion for limiting movement of the locking ring.

According to the spring bolt of the embodiment of the disclosure, the driving piece of the spring bolt is made of the plastic which is not easy to wear, so that the spring bolt is not easy to damage under the matching of the spring bolt and the driving cam. In addition, the deadbolt according to the present disclosure is small, lightweight, and material efficient and easy to manufacture compared to a metal deadbolt driver. This may improve the life of the lock and reduce manufacturing and maintenance costs.

In some embodiments according to the present disclosure, the locking bolt is manufactured by insert injection molding.

In some embodiments according to the present disclosure, the diameter of the first metal rod portion is smaller than the diameter of the second metal rod portion.

In some embodiments according to the present disclosure, the plastic driver further comprises a sensor trigger such that when the deadbolt restricts movement of the lock ring, the sensor trigger triggers a sensor in the switch control mechanism.

In some embodiments according to the present disclosure, the drive mating portion is configured as a drive groove.

In some embodiments according to the present disclosure, the drive mating portion is configured as a drive projection.

In a second aspect of the present disclosure, a switch control mechanism for a lockset is provided. This switch control mechanism includes: a locking bolt according to the first aspect of the present disclosure; a motor having a rotating shaft rotatable along a rotation axis; and a cam connected to a rotation shaft of the motor, and having a driving part such that, when the rotation shaft of the motor rotates, the driving part applies a driving force to a driving engagement part of a plastic driving member of the latch to move the latch in the switch control mechanism.

In some embodiments according to the present disclosure, the drive mating portion of the plastic driver is configured as a drive groove, and the drive portion of the cam is configured as an axial projection in the direction of the axis of rotation.

In some embodiments according to the present disclosure, the drive mating portion of the plastic driver is configured as a drive projection and the drive portion of the cam is configured as a radial projection perpendicular to the axis of rotation.

In a third aspect of the present disclosure, a lockset is provided. The lock includes a switch control mechanism according to the second aspect of the present disclosure.

In a fourth aspect of the present disclosure, a bicycle is provided. The bicycle comprises a lock according to the third aspect of the present disclosure.

Further features of the present disclosure will become apparent from the following description of exemplary embodiments with reference to the attached drawings. It should be understood that this summary is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of exemplary embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the disclosure.

FIG. 1 shows a schematic view of a latch incorporating a switch control mechanism for the latch according to some embodiments of the present disclosure;

FIG. 2 illustrates a deadbolt for a switch control mechanism of a lock according to one embodiment of the present disclosure;

FIG. 3 illustrates a deadbolt for a switch control mechanism of a lock according to another embodiment of the present disclosure;

FIG. 4 illustrates a switch control mechanism for a lockset according to one embodiment of the present disclosure;

FIG. 5 illustrates a switch control mechanism for a lockset according to another embodiment of the present disclosure;

FIG. 6 illustrates a cross-sectional view of a switch control mechanism for a lockset according to one embodiment of the present disclosure.

Detailed Description

The present disclosure will now be described with reference to several example embodiments. It should be understood that these examples are described only for the purpose of enabling those skilled in the art to better understand and thereby enable the present disclosure, and are not intended to set forth any limitations on the scope of the technical solutions of the present disclosure.

As used herein, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to. The term "based on" will be read as "based at least in part on". The terms "one embodiment" and "an embodiment" should be understood as "at least one embodiment". The term "another embodiment" should be understood as "at least one other embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions may be included below. The definitions of the terms are consistent throughout the specification unless the context clearly dictates otherwise.

Fig. 1 shows a schematic view of a lock fitted with a switch control mechanism for the lock according to some embodiments of the present disclosure. As shown in fig. 1, a lock 1 according to the present disclosure includes a lock housing 60, a lock ring 20, a spring 50, a finger 40, and a switch control mechanism 10. A lock ring groove 30 is provided in the lock housing 60, and the lock ring 20 and the spring 50 are disposed in the lock ring groove 30. The spring 50 has a fixed end that is fixed to the lock housing, and the other end of the spring 50 is attached to the lock ring 20. Fig. 1 shows the lock 1 in the unlocked state, when the bolt 100 of the switch control mechanism 10 is resting against the lock ring 20. There is also a locking groove 21 on the locking ring 20. When the locking is performed, the user pulls the handle 40 to move the lock ring 20 in the counterclockwise direction toward the locking direction, and when the upper locking groove 21 reaches a position corresponding to the locking tongue 100, the locking tongue 100 slides into the upper locking groove 21, thereby performing the locking. Therefore, in the locked state, the lock tongue 100 is inserted into the locking groove 21 of the lock ring 20, and the lock ring 20 is prevented from moving in the unlocking direction. When unlocking, the locking bolt 100 is driven upward out of the locking groove 21, and at this time, the locking ring 20 loses the blocking force of the locking bolt 100 and moves in the unlocking direction by the tensile force of the spring 50, so that unlocking is achieved, as shown in fig. 1.

Fig. 2 and 3 illustrate a deadbolt for a switch control mechanism of a lock according to an embodiment of the present disclosure. Locking bolt 100 includes a plastic actuator 110 and a metal lever 120. The plastic driver 110 is made of a plastic material and is configured to have a drive engaging portion 111 with a specific shape for engaging with a drive cam in the lock to enable the lock 100 to move in the switch control mechanism 10. The metal rod 120 passes through the plastic driver 110 and is fastened with the plastic driver 110 so that the plastic driver 110 and the metal rod 120 can move together. In fig. 2 and 3, the metal rod 120 includes a left side portion, hereinafter referred to as a first metal rod portion 121, passing through the plastic actuator 110, and a right side portion, hereinafter referred to as a second metal rod portion 122, located at the plastic actuator 110. In an embodiment according to the present disclosure, the first metal rod portion 121 is designed to mount the spring 130 such that the spring 130 can provide the latch tongue 100 with a pushing force toward the locking direction. The second metal rod portion 122 is designed to limit movement of the locking collar 20 in the locked state, such as by inserting the second metal rod portion 122 into the locking groove 21 of the locking collar 20.

With the lock tongue according to the embodiment of the present disclosure, the lock tongue driving member for driving the locking movement is made of plastic, and the lock tongue rod for locking the lock ring is made of metal, which results in reducing the mass of the lock tongue as a whole, saving metal materials, and reducing cost. Meanwhile, the latch bolt driving member made of plastic can be configured in a finer shape than a metal driving member, and is easy to manufacture. The lock tongue formed by the structure can move only by small driving force, so that a low-power motor with small volume can be used, and the whole volume of the lock tongue switch control mechanism is reduced.

In some embodiments, locking bolt 100 may be manufactured by insert injection molding. In this way, the plastic driver 110 can be fastened to the metal rod 120 with a simple manufacturing process, further saving manufacturing costs.

In some embodiments, the diameter of the first metal rod portion 121 is smaller than the diameter of the second metal rod portion 122. The thinner first metal rod portion 121 may cooperate with a smaller diameter spring 130, thereby reducing the cost of the spring 130. At the same time, the thicker second metal rod portion 122 may provide a more secure and lupont locking function for the locking collar 20. The transition portions of the first and second metal rod portions 121 and 122 may be buried in the plastic driving member 110, thereby providing protection from the first and second metal rod portions 121 and 122 from being broken at the transition portions by the plastic driving member 110.

In some embodiments, the plastic driver 110 may also include a sensor trigger 112. When the locking tongue 100 restricts the movement of the lock ring 20, for example, when the locking tongue 100 is inserted into the locking groove 21 of the lock ring 20, the sensor trigger 112 triggers the sensor 140 disposed in the switch control mechanism 10, thereby providing a control signal. This control signal indicates that the locking bolt 100 has successfully locked the lock ring 20, i.e. that the bicycle is now in an unused locked state.

As shown in fig. 2 and 3, the sensor trigger 112 may be configured as a side wall of the plastic driver 110. When the locking bolt 100 moves, the plastic driver 110 contacts a trigger button of a sensor 140 (see fig. 4 and 5), thereby generating a control signal.

In some embodiments, drive mating portion 111 may be configured as a drive recess, as shown in fig. 2.

In some embodiments, drive mating portion 111 may also be configured as a drive projection, as shown in fig. 3.

Fig. 4 and 5 show the switch control mechanism 10 for the lock 1 according to the embodiment of the present disclosure, and fig. 6 shows an internal cross-sectional view of the switch control mechanism 10 for the lock 1 according to the embodiment of the present disclosure.

The switch control mechanism 10 includes a latch bolt 100 and a cam 160 driving the latch bolt 100 to move. The cam 160 is connected to the rotation shaft 151 of the motor 150 on one hand so as to be rotatable together with the rotation shaft 151 of the motor 150. On the other hand, the cam 160 has a driving portion 161, and the driving portion 161 can be engaged with the plastic driver 110 of the latch bolt 100. When the rotating shaft 151 of the motor 150 rotates the cam 160, the driving part 161 applies a driving force to the plastic driver 110 to move the bolt 100 in the switch control mechanism 10, for example, to move the metal rod 120 of the bolt 100 out of the locking groove 21 of the locking ring 20, thereby unlocking the lock.

As shown in fig. 6, in the switching control mechanism 10 having the T-shaped housing according to the embodiment of the present disclosure, the motor 150 is located at a lower portion of the T-shaped housing, and has the rotary shaft 151 rotatable along the rotation axis a. The rotation shaft 151 is connected at its end to the cam 160 so that the cam 160 can be rotated together. The locking tongue 100 is located in the upper part of the T-shaped housing, wherein the plastic driver 110 of the locking tongue 100 is located substantially above the motor 150 and the metal rod 120 extends in a direction substantially perpendicular to the direction of the rotation axis a of the motor.

In some embodiments, the drive mating portion 111 of the plastic driver 110 is configured as a drive groove, and the drive portion 161 of the cam 160 is configured as an axial projection in the direction of the axis of rotation a.

In this embodiment, as shown in fig. 4, the cam 160 has an axial projection in the direction of the rotation axis, while the drive fitting portion 111 of the plastic driver 110 has a drive fitting portion 111 in the form of a groove at a position close to the cam 160.

During rotation of the cam 160, the axial projection of the cam 160 can first enter the groove of the plastic driver 110. Then, the cam 160 is in contact with the sidewall of the groove, thereby applying a driving force to the plastic driver 110 of the latch tongue 100, so that the latch tongue 100 moves leftward in fig. 4 as the cam 160 rotates. At this time, the movement of the locking bolt 100 causes the metal rod 120 to move out of the locking groove 21 of the locking ring 20, thereby performing an unlocking function. Finally, the cam 160 continues to rotate out of the groove, causing the plastic driver 110 of the deadbolt 100 to lose drive. At this time, the compressed spring 130 applies a rightward thrust to the plastic driving member 110 of the latch bolt 100, thereby restoring the latch bolt 100.

In some embodiments, the drive mating portion 111 of the plastic driver 110 is configured as a drive projection, and the drive portion 161 of the cam 160 is configured as a radial projection perpendicular to the axis of rotation a.

In this embodiment, as shown in fig. 5, the cam 160 has a radial projection in the cam diameter direction perpendicular to the rotational axis direction, and the drive fitting portion 111 of the plastic driver 110 has the drive fitting portion 111 in the form of a projection at a position close to the cam 160. In the embodiment shown in fig. 5, the plastic driver 110 has two drive lugs with a gap formed between the two drive lugs. It should be understood that while the following description is made with a plastic driver 110 having two drive lugs, the illustrated embodiment is exemplary only, and the driver 110 may be configured with only one drive lug or with more drive lugs.

During rotation of the cam 160, the radial projection of the cam 160 can first enter the gap between two drive projections of the plastic driver 110. Then, the cam 160 is brought into contact with a side wall of the driving protrusion on the left side in fig. 5, thereby applying a driving force to the plastic driver 110 of the latch tongue 100, so that the latch tongue 100 moves, leftwards in fig. 5, as the cam 160 rotates. At this time, the movement of the locking bolt 100 causes the metal rod 120 to move out of the locking groove 21 of the locking ring 20, thereby performing an unlocking function. Eventually, cam 160 continues to rotate out of the gap, causing plastic driver 110 of deadbolt 100 to lose drive. At this time, the compressed spring 130 applies a rightward thrust to the plastic driving member 110 of the latch bolt 100, thereby restoring the latch bolt 100.

It is to be understood that the above detailed embodiments of the disclosure are merely illustrative of or explaining the principles of the disclosure and are not limiting of the disclosure. Therefore, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Also, it is intended that the following claims cover all such changes and modifications that fall within the scope and boundaries of the claims or the equivalents of the scope and boundaries.

Claims (11)

1. A bolt for a switch control mechanism (10) of a lock (1), the bolt (100) comprising:

a plastic driver (110), the plastic driver (110) comprising a drive mating portion (111) such that the latch bolt (100) moves in the switch control mechanism (10) by means of a driving force applied to the drive mating portion (111); and

a metal rod (120), the metal rod (120) passing through the plastic driver (110) and being fastened with the plastic driver (110), the metal rod (120) including a first metal rod portion (121) for mounting a spring (130) and a second metal rod portion (122) for limiting movement of the locking ring (20).

2. The locking bolt of claim 1, characterized in that the locking bolt (100) is manufactured by insert injection molding.

3. The bolt according to claim 1 or 2, characterised in that the diameter of the first metal rod part (121) is smaller than the diameter of the second metal rod part (122).

4. The locking bolt of claim 1 or 2, characterized in that the plastic driver (110) further comprises a sensor trigger (112) such that when the locking bolt (100) limits movement of the lock ring (20), the sensor trigger (112) triggers a sensor (140) in the switch control mechanism (10).

5. The bolt according to claim 1 or 2, characterized in that the drive engagement portion (111) is configured as a drive groove.

6. The bolt according to claim 1 or 2, characterized in that the drive engagement portion (111) is configured as a drive projection.

7. A switch control mechanism for a lock, characterized in that the switch control mechanism (10) comprises:

the deadbolt (100) of any one of claims 1-4;

a motor (150), the motor (150) having a rotating shaft (151) rotatable along a rotation axis (A); and

a cam (160), the cam (160) being connected to a rotating shaft (151) of the motor (150), and the cam (160) having a driving part (161) such that when the rotating shaft (151) of the motor (150) rotates, the driving part (161) applies a driving force to a driving engagement part (111) of a plastic driving member (110) of the latch tongue (100) to move the latch tongue (100) in the switch control mechanism (10).

8. The switch control mechanism of claim 7,

the drive mating portion (111) of the plastic drive piece (110) is configured as a drive recess; and is

The drive portion (161) of the cam (160) is configured to be axially convex in the direction of the rotation axis (A).

9. The switch control mechanism of claim 7,

the drive mating portion (111) of the plastic drive piece (110) is configured as a drive projection; and is

The drive portion (161) of the cam (160) is configured as a radial projection perpendicular to the rotation axis (a).

10. A lock, characterized in that the lock (1) comprises a switch control mechanism (10) according to any one of claims 7-9.

11. Bicycle, characterized in that it comprises a lock (1) according to claim 10.

Images