A supermarket trolley lock assembly

Abstract

The present invention discloses a supermarket trolley lock assembly, comprising a lock shell body, a lock and a key matched with the lock, one end of the lock is a junction, the other end is a driving part, the lower end between the junction and the driving part is a supporting protrusion, a cam accommodating hole is provided in the middle of the driving part on the right side of the supporting protrusion, a U-shaped opening is provided above the driving part, the left side of the U-shaped opening is a first lock hook part, and the right side is a second lock hook part. In the coin manual state and the mobile payment state, the motor only needs to rotate half a circle to complete the unlocking, which reduces the number of rotations of the motor, reduces the energy consumption of the motor, and prolongs the service life of the battery in the automatic lock. In the use process, the improvement of the lock and key structure newly added makes it mainly rely on spring reset when resetting, and the response speed is fast and the response time is short.

Description

Technical Field

[0001] The invention relates to the technical field of supermarket trolley lock manufacturing, in particular to a supermarket trolley lock assembly. Background Art

[0002] At present, supermarkets install coin-operated locks on trolleys to solve the problem of trolleys being randomly placed after use. Common coin-operated locks use coins to unlock. Coins are used as unlocking tools and also as deposits. After use, the trolley must be returned to the designated parking spot and the key from the previous trolley must be inserted into the lock on the returned vehicle to take out the coin, which solves the problem of trolleys being thrown around. However, due to the popularity and convenience of mobile payment, fewer and fewer people carry coins with them, and more and more mobile payments are being made. However, mobile payment requires a power mechanism to actively output rotation to unlock the lock. The existing unlocking mechanism consumes a lot of power to unlock the lock, and the response speed is slow. The existing lock buckle cannot meet the electric unlocking method.

[0003] In view of the above problems, a supermarket trolley lock assembly is designed. Summary of the invention

[0004] The purpose of the present invention is to provide a supermarket trolley lock assembly, which has the advantages of fast response speed and low energy consumption, and solves the problems of large power consumption and slow response speed of the unlocking mechanism.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a supermarket trolley lock assembly, comprising a lock shell body, a lock and a key matched with the lock, one end of the lock is a junction, the other end is a driving part, the lower end between the junction and the driving part is a supporting protrusion, a cam accommodating hole is provided in the middle of the driving part on the right side of the supporting protrusion, a U-shaped opening is provided above the driving part, the left side of the U-shaped opening is a first lock hook part, the right side thereof is a second lock hook part, and a micro-motion response protrusion is provided at the lower right end of the driving part;

[0006] The intersection of the lock buckle is hinged on the left side of the lock buckle groove on the lock shell body, a return spring is arranged between the lower end of the supporting protrusion and the lock shell body, the cam receiving hole is provided with an eccentric wheel, the eccentric wheel is fixed on the motor output shaft, and the motor is fixed on the lock shell body;

[0007] A third micro switch is arranged on the lock housing body on the right side of the micro-motion response protrusion.

[0008] Furthermore, a key guide groove is provided above the lock catch groove of the lock shell body, and a first micro switch matching with the key is provided on the lock shell body on one side of the key guide groove.

[0009] Furthermore, a second slide groove is provided on the lock shell body above the driving part, a second slider is provided in the second slide groove, the lower part of the second slider cooperates with the second lock hook part, a second supporting spring is provided between the right side of the second slider and the lock shell body, a first slide groove perpendicular to the second slide groove is provided on the lock shell body above the key guide groove, a first slider is provided in the first slide groove, and a first supporting spring is provided between the rear side of the first slider and the lock shell body.

[0010] Furthermore, a fourth micro switch is provided on the lock housing body at the rear side of the first sliding block.

[0011] Furthermore, the left side of the first locking hook portion is a continuously rising wedge-shaped shoulder, and the right side of the second locking hook portion is a continuously descending wedge-shaped shoulder.

[0012] Furthermore, the eccentric wheel includes a driving wheel and a response wheel, both of which are fixed on the motor output shaft, the driving wheel is arranged in the cam accommodating hole, the response wheel is arranged outside the cam accommodating hole, and a second micro switch is arranged on the driving part on the right side of the response wheel.

[0013] Furthermore, a U-shaped fixing opening is provided at the right end of the key, and a card slot is provided on the key on the left side of the U-shaped fixing opening, and the card slot cooperates with the first lock hook portion.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the manual coin mode and mobile payment mode, the motor only needs to rotate half a circle to unlock the door, which reduces the number of revolutions of the motor, reduces the motor energy consumption, and extends the battery life of the automatic lock. During use, the newly added improvements in the lock and key structure make it mainly rely on spring reset when resetting, with fast response speed and short response time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic cross-sectional view of the supermarket trolley lock proposed by the present invention;

[0018] Figure 2 It is a partial three-dimensional structural diagram of a supermarket trolley lock;

[0019] Figure 3 It is a partial top view structural diagram of a supermarket trolley lock;

[0020] Figure 4This is a schematic diagram of a supermarket trolley lock assembly proposed by the present invention in a locked state;

[0021] Figure 5 It is a structural schematic diagram in the electric unlocking state;

[0022] Figure 6 It is a schematic diagram of the structure when the lock is opened.

[0023] In the figure: 1-lock shell body, 2-lock buckle, 3-intersection part, 4-driving part, 5-supporting protrusion, 6-reset spring, 7-cam accommodating hole, 8-driving wheel, 9-response wheel, 10-U-shaped opening, 11-first lock hook part, 12-second lock hook part, 14-micro-response protrusion, 15-second micro-switch, 16-third micro-switch, 17-second slide groove, 18-second slider, 19-first slider, 20-key guide groove, 21-U-shaped fixed opening, 22-card slot, 23-key, 24-fourth micro-switch, 25-first micro-switch, 26-second supporting spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Reference Figure 1-6 A supermarket trolley lock assembly comprises a lock shell body 1, a lock 2 and a key 23 matched with the lock 2, one end of the lock 2 is a junction 3, and the other end is a driving part 4, the lower end between the junction 3 and the driving part 4 is a supporting protrusion 5, a cam accommodating hole 7 is provided in the middle of the driving part 4 on the right side of the supporting protrusion 5, a U-shaped opening 10 is provided above the driving part 4, the left side of the U-shaped opening 10 is a first lock hook part 11, and the right side thereof is a second lock hook part 12, and a micro-motion response protrusion 14 is provided at the lower right end of the driving part 4;

[0026] The intersection 3 of the lock buckle 2 is hinged to the left side of the lock buckle groove on the lock housing body 1, a return spring 6 is arranged between the lower end of the supporting protrusion 5 and the lock housing body 1, and the cam receiving hole 7 is provided with an eccentric wheel, which is fixed on the motor output shaft, and the motor is fixed on the lock housing body 1;

[0027] A third micro switch 16 is provided on the lock housing body 1 on the right side of the micro-motion response protrusion 14 .

[0028] A key guide groove 20 is provided above the lock catch groove of the lock housing body 1 , and a first micro switch 25 matched with a key 23 is provided on the lock housing body 1 on one side of the key guide groove 20 .

[0029] A second slide groove 17 is provided on the lock shell body 1 above the driving part 4, a second slider 18 is provided in the second slide groove 17, the lower part of the second slider 18 cooperates with the second lock hook part 12, a second support spring 26 is provided between the right side of the second slider 18 and the lock shell body 1, a first slide groove perpendicular to the second slide groove 17 is provided on the lock shell body 1 above the key guide groove 20, a first slider 19 is provided in the first slide groove, and a first support spring is provided between the rear side of the first slider 19 and the lock shell body 1.

[0030] A fourth micro switch 24 is disposed on the lock housing body 2 at the rear side of the first sliding block 19 .

[0031] The left side of the first locking hook portion 11 is a continuously rising wedge-shaped shoulder, and the right side of the second locking hook portion 12 is a continuously descending wedge-shaped shoulder.

[0032] The eccentric wheel includes a driving wheel 8 and a response wheel 9, both of which are fixed on the motor output shaft. The driving wheel 8 is arranged in the cam accommodating hole 7, and the response wheel 9 is arranged outside the cam accommodating hole 7, and a second micro switch 15 is arranged on the driving part 4 on the right side of the response wheel 9.

[0033] A U-shaped fixing opening 21 is formed at the right end of the key 23 , and a locking slot 22 is formed on the key 23 on the left side of the U-shaped fixing opening 21 . The locking slot 22 matches with the first lock hook portion 11 .

[0034] Each micro switch and motor is electrically connected to the control main board;

[0035] When in use, when the key 23 is inserted into the key guide slot 20 (returning the car), the key 23 pushes the second slider 18 to the right, and the second support spring 26 is in a compressed state; at this time, the lock buckle 2, under the spring force of the return spring 6, the driving part 4 bounces upward, and the first lock hook part 11 cooperates with the card slot 22, and the second lock hook part 12 cooperates with the U-shaped fixed opening 21 to lock the key 23; at the same time, the micro-response protrusion 14 on the driving part 4 triggers the third micro-switch 16, and the system returns the deposit;

[0036] In the scan code payment state, after the deposit is paid by scanning the code, the motor rotates to drive the driving wheel 8 to rotate, so that the driving part 4 moves downward, and at the same time the reset spring 6 is compressed, and the first lock hook part 11 is disengaged from the card slot 22, and the second lock hook part 12 is disengaged from the U-shaped fixed opening 21, so that the second slider 18 pushes the key 23 out under the thrust of the second support spring 26, and the lock buckle 2 is disengaged from the key 23, and the motor continues to rotate to trigger the second micro switch 15, and the motor stops;

[0037] In the coin payment state, the coin is manually pushed to push the first slider 19 to the fourth microswitch 24, and the first support spring is compressed. At this time, the first slider 19 triggers the fourth microswitch 24, and the system blocks the mobile payment function; at the same time, the fourth microswitch 24 starts the motor to rotate, and the rotation of the motor drives the driving wheel 8 to rotate so that the driving part 4 moves downward, and at the same time the reset spring 6 is compressed, and the first lock hook part 11 is disengaged from the card slot 22, and the second lock hook part 12 is disengaged from the U-shaped fixed opening 21, so that the second slider 18 pushes out the key 23 under the thrust of the second support spring 26, and the lock buckle 2 disengages the key 23, and the motor continues to rotate to respond to the wheel 9 to trigger the second microswitch 15, and the motor stops. At this time, the lock buckle 2 is pressed on the second slider 18 under the action of the reset spring; the left end of the second slider 18 jams the first slider 19 and the coin at the same time, and makes the first slider 19 unable to push the coin out; at this time, the coin is jammed after the person lets go, and the lock is opened at the same time;

[0038] When returning the car with a coin, the key is inserted into the lock and the second slider 18 is pushed to the right; at this time, the lock buckle 2 locks the key under the action of the reset spring 6, and at the same time triggers the first micro switch 25, indicating that the car has been returned; when the second slider 18 is pushed to the right, the first slider 19 disengages from the second slider 18, and the first slider 19 pushes the coin out under the spring force of the first supporting spring; at the same time, the fourth micro switch is released, and the shielding of the mobile payment system is cancelled.

[0039] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A supermarket trolley lock assembly, comprising a lock housing body (1), a lock (2) and a key (23) matched with the lock (2), characterized in that: One end of the lock buckle (2) is a junction portion (3), and the other end thereof is a driving portion (4); the lower end between the junction portion (3) and the driving portion (4) is a supporting protrusion (5); a cam receiving hole (7) is provided in the middle of the driving portion (4) on the right side of the supporting protrusion (5); a U-shaped opening (10) is provided above the driving portion (4); the left side of the U-shaped opening (10) is a first locking hook portion (11), and the right side thereof is a second locking hook portion (12); The lower right end of the driving part (4) is provided with a micro-motion response protrusion (14); the intersection (3) of the lock catch (2) is hinged to the left side of the lock catch groove on the lock shell body (1); a return spring (6) is provided between the lower end of the supporting protrusion (5) and the lock shell body (1); the cam receiving hole (7) is provided with an eccentric wheel, the eccentric wheel is fixed on the motor output shaft, the motor is fixed on the lock shell body (1); the lock on the right side of the micro-motion response protrusion (14) is A third micro switch (16) is arranged on the shell body (1); a key guide groove (20) is provided above the lock catch groove of the lock shell body (1); a first micro switch (25) matched with the key (23) is provided on the lock shell body (1) on one side of the key guide groove (20); a second slide groove (17) is provided on the lock shell body (1) above the driving part (4); a second slider (18) is provided in the second slide groove (17); the lower part of the second slider (18) is matched with the second lock hook part (12); a second support spring (26) is provided between the right side of the second slider (18) and the lock shell body (1); a first slide groove perpendicular to the second slide groove (17) is provided on the lock shell body (1) above the key guide groove (20); a first slider (19) is provided in the first slide groove; a first support spring is provided between the rear side of the first slider (19) and the lock shell body (1).

2. The supermarket trolley lock assembly according to claim 1, characterized in that: A fourth micro switch (24) is provided on the lock housing body (1) at the rear side of the first sliding block (19).

3. The supermarket trolley lock assembly according to claim 1, characterized in that: The left side of the first locking hook portion (11) is a continuously rising wedge-shaped shoulder, and the right side of the second locking hook portion (12) is a continuously descending wedge-shaped shoulder.

4. The supermarket trolley lock assembly according to claim 1, characterized in that: The eccentric wheel comprises a driving wheel (8) and a response wheel (9), both of which are fixed on the output shaft of the motor, the driving wheel (8) is arranged in the cam receiving hole (7), the response wheel (9) is arranged outside the cam receiving hole (7), and a second micro switch (15) is arranged on the driving part (4) on the right side of the response wheel (9).

5. The supermarket trolley lock assembly according to claim 1, characterized in that: A U-shaped fixing opening (21) is provided at the right end of the key (23), and a card slot (22) is provided on the key (23) on the left side of the U-shaped fixing opening (21), wherein the card slot (22) matches the first lock hook portion (11).

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