CN218912546U - Overload-preventing motor-driven cushion lock - Google Patents

Abstract

The application discloses motor-driven cushion lock of overload prevention, including mount pad, lock shell, latch hook, hasp, motor and gear train, still include and leave disconnected pusher gear, it is connected with the gear train transmission for pushing the hasp, leave disconnected pusher gear when stretching out or retracting to extreme position, with gear train disconnection transmission, it includes pushing the pole to leave disconnected pusher gear, its one end can stretch out outside the lock shell and butt with the hasp; the motor-driven gear set is characterized in that a plurality of teeth are arranged on the outer wall of the pushing rod and are in transmission connection with the gear set, when the pushing rod stretches out or retracts to the limit position, each tooth is separated from the transmission range of the gear set, in daily use, by adopting the technical scheme, the motor drives the gear set to operate, the pushing rod is driven to stretch out and draw back through the teeth, when the pushing rod stretches out and draws back to the limit position, if the gear set still continuously executes the same instruction, the gear set can only scratch with the nearest gear and can not continuously drive the pushing rod to stretch out and draw back, and when a control system breaks down, the motor is ensured not to burn out due to locked overload.

Description

Overload-preventing motor-driven cushion lock

Technical Field

The utility model relates to an overload-preventing motor-driven cushion lock.

Background

The two-wheeled electric vehicle is called an electric two-wheeled vehicle or an electric two-wheeled vehicle, and is an electromechanical integrated green personal vehicle which takes a storage battery as an auxiliary energy source and is provided with a motor, a controller, a display instrument system and other components on the basis of the two-wheeled vehicle. In order to facilitate the storage of articles for users, a storage space is usually arranged below the cushion of the two-wheeled electric vehicle. The two-wheel electric vehicle cushion lock is an accessory on the two-wheel electric vehicle and is used for guaranteeing the safety of articles stored under the cushion. The cushion lock comprises a lock plate arranged on the frame and a lock plunger arranged on the cushion, and can form locking through the matching of the lock plate and the lock plunger, and can be unlocked through a key. There is thus a need for improvements.

In the 'a remote control stepping motor driven cushion lock' with the Chinese patent publication number of CN207436719U, the three-stage speed reducing mechanism pushes the rack to push out and retract so as to achieve the aim of unlocking and locking the cushion lock, but the rack and the motor in the technical scheme are in transmission connection through the primary gear set, the secondary gear set and the three-stage gear set, and when the rack extends or retracts to a limit, and when a control system fails and leads the motor to continue rotating, the motor is blocked, overloaded and burned.

Disclosure of Invention

The utility model aims to solve one of the technical problems existing in the prior art.

The application provides a motor drive cushion lock of overload prevention, including mount pad, lock shell, latch hook, hasp, motor and gear train, still include:

the disconnection pushing device is in transmission connection with the gear set and is used for pushing the lock catch;

when the disconnection pushing device is extended or retracted to the limit position, the transmission is disconnected with the gear set.

The disconnection pushing device comprises:

one end of the pushing rod can extend out of the lock shell and is in butt joint with the lock catch;

the teeth are arranged on the outer wall of the pushing rod and are in transmission connection with the gear set;

when the pushing rod extends or retracts to the limit position, each tooth is separated from the transmission range of the gear set.

The disconnection pushing device further comprises:

and the reset mechanism is used for applying pushing force for enabling the teeth to approach the gear set to the pushing rod when the pushing rod extends or retracts to the limit position.

The reset mechanism comprises:

the sliding groove is externally arranged on the lock shell in a protruding way;

the mounting groove is arranged in the middle of the chute;

a spring disposed in the mounting groove;

and the sliding blocks are respectively arranged at two ends of the pushing rod and are in sliding fit with the sliding grooves.

The latch hook includes:

the lock hook body is rotatably arranged on the mounting seat through the rotating shaft;

the buckling and locking groove is arranged on the body;

the latch lug is used for being matched with the latch to latch the hook body.

The lock catch comprises:

one end of the lock catch body is rotatably arranged on the mounting seat through the rotating shaft, and the other end of the lock catch body is contacted with the outer end of the push rod;

and the limiting lug is arranged on the lock catch body and is used for being matched with the lock catch lug to lock the lock catch body.

Further comprises:

the two ends of the tension spring are respectively connected with the lock hook body and the lock catch body;

the tension spring applies opposite forces to the latch hook body and the latch body.

When the latch lug and the hook latch lug are combined, the contact surface of the latch lug is perpendicular to the movement track a of the latch hook body and tangent to the movement track b of the latch hook body.

Further comprises:

the micro switch is arranged on the mounting seat and is electrically connected with an external display instrument system;

wherein, micro-gap switch passes through the latch hook and triggers.

Further comprises:

the waterproof cover is sleeved outside the motor and is installed on the installation seat through ultrasonic welding.

The beneficial effects of the utility model are as follows:

1. through the arrangement of the pushing rod, the teeth, the sliding grooves, the mounting grooves, the springs and the pair of sliding blocks, when the motor repeatedly unlocks or locks the command again, the gear set cannot be in transmission fit with each tooth, and when the motor continues to rotate due to the failure of the control system, the motor is ensured not to be burnt due to the overload of locked rotor;

2. the contact surface of the latch lug and the latch lug when combined is perpendicular to the movement track a of the latch hook body and tangent to the movement track b of the latch hook body, so that the buckling force between the latch hook body and the latch is improved, and the unlocking force is reduced.

Drawings

FIG. 1 is a front view of a motor driven cushion lock for overload protection in an embodiment of the present application;

FIG. 2 is a top view of an overload prevention motor driven cushion lock in an embodiment of the present application;

fig. 3 is a schematic view of a sliding chute, a mounting slot, a spring and a pair of sliding blocks in an embodiment of the present application.

Reference numerals

101-mounting seat, 102-lock shell, 103-gear set, 2-release pushing device, 201-pushing rod, 202-tooth, 3-reset mechanism, 301-chute, 302-mounting groove, 303-spring, 304-slider, 4-latch hook, 401-latch hook body, 402-latch groove, 403-latch lug, 5-latch, 501-latch hook body, 502-limit lug, 6-tension spring, 7-micro switch and 8-waterproof cover.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The server provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.

Example 1:

as shown in fig. 1 to 3, the embodiment of the application provides an overload-proof motor-driven cushion lock, which comprises a mounting seat 101, a lock shell 102, a lock hook 4, a lock catch 5, a motor and a gear set 103, and further comprises a release pushing device 2 in transmission connection with the gear set 103, wherein the release pushing device 2 is used for pushing the lock catch 5, and when the release pushing device 2 is extended or retracted to a limit position, the release pushing device is in transmission disconnection with the gear set 103.

Further, the disconnection pushing device 2 comprises a pushing rod 201, one end of which can extend out of the lock shell 102 to be abutted with the lock catch 5; the plurality of teeth 202 are arranged on the outer wall of the pushing rod 201 and are in transmission connection with the gear set 103, and when the pushing rod 201 extends or retracts to the limit position, each tooth 202 is separated from the transmission range of the gear set 103.

Further, the trip pusher 2 further includes a return mechanism 3 for applying a pushing force to the pusher rod 201 to bring the teeth 202 close to the gear set 103 when the pusher rod 201 is extended or retracted to the limit position.

Further, the reset mechanism 3 comprises a sliding groove 301, and the sliding groove is arranged on the lock shell 102 in a protruding way; a mounting groove 302 provided in the middle of the chute 301; a spring 303 disposed in the mounting groove 302; a pair of sliding blocks 304 are respectively arranged at two ends of the pushing rod 201 and are in sliding fit with the sliding groove 301.

In this embodiment of the present application, since the above-mentioned structure is adopted, when unlocking is required, the motor (which is located in the waterproof cover 8 and is a direct current motor or a stepping motor) is started, the gear set 103 is engaged with each tooth 202, the pushing rod 201 is driven to extend, the lock catch 5 is pushed to disengage the lock catch 5 from the lock hook 4, the lock between the lock hook 4 and the lock bolt (not shown in the figure) is released, while the pushing rod 201 extends, each slider 304 slides along with the pushing rod 201 until the pushing rod 201 extends to the limit position, the leftmost tooth 202 is disengaged from the transmission range of the gear set 103, the left slider 304 enters the mounting groove 302 from the chute 301, the spring 303 is pressed, the force is applied to the gear set 103 by the spring 303 to the left slider 304 and the pushing rod 201, at this time the gear set 103 rotates counterclockwise, each tooth 202 cannot enter the transmission range, the rotating gear set 103 can only scratch the side wall of the closest tooth 202, when the pushing rod 201 needs to retract, the motor rotates reversely, the gear set 103 rotates anticlockwise, the leftmost tooth 202 enters the transmission range of the gear set 103 under the force of the spring 303 and is matched with the gear set 103 in a transmission manner to retract the pushing rod 201, at the moment, a pair of sliding blocks 304 also slide in the sliding groove 301, the left sliding block 304 is separated from the mounting groove 302, the right sliding block 304 enters the mounting groove 302 and gradually extrudes the spring 303 until the pushing rod 201 retracts to the limit position, at the moment, under the action of the spring 303, the outer side wall of the rightmost tooth 202 is scratched with the pushing rod 202 when the gear set 103 continues to execute the retraction instruction, and cannot enter the transmission range of the gear set 103.

Example 2:

as shown in fig. 1 and 3, in this embodiment, in addition to including the structural features of the foregoing embodiment, further, the latch hook 4 includes a latch hook body 401 rotatably mounted on the mount 101 through a rotation shaft; a latch slot 402 disposed on the body; a latch lug 403 for cooperating with the latch 5 to latch the hook body 401.

Further, the lock catch 5 comprises a lock catch body 501, one end of which is rotatably arranged on the mounting seat 101 through a rotating shaft, and the other end of which is contacted with the outer end of the push rod; a limiting lug 502, which is disposed on the latch body 501, for cooperating with the latch lug 403 to latch the hook body 401.

Further, the locking device further comprises a tension spring 6, two ends of the tension spring are respectively connected with the locking hook body 401 and the locking buckle body 501, and the tension spring 6 applies opposite forces to the locking hook body 401 and the locking buckle body 501.

Preferably, when the latch lug 403 and the latch lug are combined, the contact surface thereof is perpendicular to the movement track a of the latch hook body 401 and tangential to the movement track b of the latch body 501.

Further, the micro switch 7 is mounted on the mounting seat 101 and is electrically connected with an external display instrument system, and the micro switch 7 is triggered by the lock hook 4.

Further, the motor also comprises a waterproof cover 8 which is sleeved outside the motor and is installed on the installation seat 101 through ultrasonic welding.

In this embodiment of the present application, due to the above structure, when the latch hook body 401 and the latch body 501 are linked through the pull ring, and in the locked state, the latch is locked in the latch slot 402, the latch lug 403 and the latch lug are buckled with each other, and are mutually clung under the action of the tension spring 6, so as to realize locking of the latch, and because the contact surface of the latch lug 403 and the latch lug is perpendicular to the movement track a of the latch hook 4, the latch force is enhanced, when the locking needs to be released, the motor operates, the push rod 201 stretches out, and pushes the latch body 501 to swing around the rotation axis thereof, and because the contact surface of the latch 5 lug and the latch lug 4 lug is tangential to the movement track b of the latch body 501, the latch 5 lug and the latch lug 4 lug can be easily separated when the unlocking step is performed, and when the latch body 501 swings, the latch hook body 401 is pulled by the tension spring 6 to swing together, so that the opening of the latch slot 402 faces the outside of the mounting seat 101, and the locking of the latch is released at this time;

through the arrangement of the micro switch 7, when the lock catch 5 ear and the lock hook 4 ear are disengaged, the lock hook body 401 overturns along with the lock catch body 501, and the micro switch 7 is triggered, so that an external display instrument system displays an unlocking state;

the waterproof cover 8 mounted on the mount 101 by ultrasonic welding can prevent the motor from being wetted.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (10)

1. An overload-preventing motor-driven cushion lock comprises a mounting seat (101), a lock shell (102), a lock hook (4), a lock catch (5), a motor and a gear set (103), and is characterized by further comprising:

the disconnection pushing device (2) is in transmission connection with the gear set (103) and is used for pushing the lock catch (5);

when the disconnection pushing device (2) is extended or retracted to a limit position, the transmission is disconnected with the gear set (103).

2. An overload prevention motor-driven seat cushion lock according to claim 1, wherein the release pusher (2) comprises:

one end of the pushing rod (201) can extend out of the lock shell (102) to be abutted with the lock catch (5);

a plurality of teeth (202) which are arranged on the outer wall of the pushing rod (201) and are in transmission connection with the gear set (103);

when the pushing rod (201) extends or retracts to the limit position, each tooth (202) is separated from the transmission range of the gear set (103).

3. An overload prevention motor-driven seat cushion lock according to claim 2, wherein the release pusher (2) further comprises:

and a return mechanism (3) for applying a pushing force to the pushing rod (201) to bring the tooth (202) close to the gear set (103) when the pushing rod (201) is extended or retracted to the limit position.

4. A motor-driven cushion lock against overload according to claim 3, characterized in that the reset mechanism (3) comprises:

a sliding groove (301) which is arranged on the lock shell (102) in a protruding way;

the mounting groove (302) is arranged in the middle of the sliding groove (301);

a spring (303) disposed in the mounting groove (302);

and a pair of sliding blocks (304) respectively arranged at two ends of the pushing rod (201) and in sliding fit with the sliding groove (301).

5. A motor-driven cushion lock against overload according to claim 3, characterized in that the locking hook (4) comprises:

the lock hook body (401) is rotatably arranged on the mounting seat (101) through a rotating shaft;

a lock groove (402) provided on the body;

and a latch lug (403) for cooperating with the latch (5) to latch the hook body (401).

6. An overload prevention motor driven seat cushion lock according to claim 5, wherein the lock catch (5) comprises:

one end of the lock catch body (501) is rotatably arranged on the mounting seat (101) through a rotating shaft, and the other end of the lock catch body is contacted with the outer end of the push rod;

and a limiting lug (502) arranged on the lock catch body (501) and used for being matched with the lock catch lug (403) to lock the lock catch body (401).

7. The overload prevention motor-driven cushion lock of claim 6, further comprising:

the two ends of the tension spring (6) are respectively connected with the latch hook body (401) and the latch body (501);

the tension spring (6) applies opposite force to the latch hook body (401) and the latch body (501).

8. The overload prevention motor driven cushion lock of claim 6, wherein:

when the locking lug (403) is combined with the hooking lug, the contact surface of the locking lug is perpendicular to the movement track a of the locking hook body (401) and tangent to the movement track b of the locking hook body (501).

9. The overload prevention motor-driven cushion lock of claim 6, further comprising:

a microswitch (7) which is mounted on the mounting base (101) and is electrically connected with an external display instrument system;

wherein the micro switch (7) is triggered by the latch hook (4).

10. The overload prevention motor-driven cushion lock of claim 6, further comprising:

and the waterproof cover (8) is sleeved on the outer side of the motor and is installed on the installation seat (101) through ultrasonic welding.

Images