A smart lock

Abstract

The present invention discloses a smart lock, which is arranged on a cart rod, and includes an upper shell, a control structure arranged on the lower side of the upper shell, a QR code plate embedded on the upper side of the upper shell, a base located below the upper shell and matching the upper shell, an unlocking structure arranged on the upper side of the base, a power supply structure arranged behind the base, a lock structure arranged on the upper side of the rear of the base, and a fixed seat arranged on the lower side of the front of the base and clamped on the cart rod after matching with the base; the power supply structure is connected to the control structure and the unlocking structure at the same time. The present invention provides a smart lock that better fits the progress of society, thereby meeting the needs of the people, increasing the scope of application of the product, reducing the difficulty of using the product, and can provide a better management and recording method for enterprises, thereby meeting the needs of enterprise dataization and refinement.

Description

Technical Field

[0001] The invention belongs to the field of safety protection equipment, and specifically refers to a smart lock. Background Art

[0002] Shopping carts are a common shopping tool used in supermarkets. In order to facilitate customers to use shopping carts and supermarkets to manage shopping carts, and to regulate customers' behavior of taking and returning shopping carts, locks are usually installed on the shopping cart handles. The most common locks are coin locks. When customers take the cart, they use a one-yuan coin to unlock it. When returning the shopping cart, they push the cart to a designated parking spot and lock the cart. The one-yuan coin pops out automatically, and the cart is returned. The shopping cart is managed through the one-yuan coin and the lock. This one-yuan coin shopping cart lock has the following main disadvantages:

[0003] 1. You need to use a one-yuan coin to pick up the car, which is inconvenient for people who don't always have coins;

[0004] 2. With the adjustment of coin specifications, the currently installed coin locks will no longer work properly;

[0005] 3. Unable to achieve refined management, no data and records. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned problems and provide a smart lock that better conforms to the progress of society, thereby meeting the needs of the people, increasing the scope of application of the product, reducing the difficulty of using the product, and at the same time can provide enterprises with a better management and recording method, thereby meeting the needs of enterprises for dataization and refinement.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] A smart lock is arranged on a cart rod, comprising an upper shell, a control structure arranged on the lower side of the upper shell, a QR code plate embedded in the upper side of the upper shell, a base located below the upper shell and matching the upper shell, an unlocking structure arranged on the upper side of the base, a power supply structure arranged behind the base, a locking structure arranged on the upper side of the rear of the base, and a fixed base arranged on the lower side of the front of the base and clamped on the cart rod after cooperating with the base; the power supply structure is connected to the control structure and the unlocking structure at the same time.

[0009] Preferably, the fixing seat is fixed to the base by means of No. 1 machine screws; and the base is fixed to the lower side of the upper shell by means of self-tapping screws.

[0010] Furthermore, the control structure is composed of a main PCBA board cover, a mainboard waterproof silicone ring arranged around the outer edge of the upper side of the main PCBA board cover, a main PCBA board arranged in the main PCBA board cover, a silicone button arranged on the upper side of the main PCBA board, a No. 1 waterproof silicone sheet (19) arranged on the lower side of the main PCBA board, a No. 2 waterproof silicone sheet arranged on the lower side of the main PCBA board cover, and a buzzer connected to the main PCBA board; the silicone button passes through the upper shell.

[0011] Preferably, a nut is fixed to the lower side of the upper shell, and the main PCBA board cover is fixed to the nut by a countersunk screw.

[0012] Furthermore, the base is provided with a motor slot, a slider slot, a latch slot and a push plate slot, a power mechanism is provided inside the motor slot, a slider is provided inside the slider slot, and a push plate mechanism is provided inside the push plate slot; the slider slot is located at the front end of the motor slot, and is respectively connected with the motor slot and the latch slot, a slider spring is provided on the slider and the end of the slider is inserted into the latch slot under the elastic force of the slider spring, and the push plate slot is connected with the latch slot; the power mechanism is connected to the power supply structure through the main PCBA board.

[0013] Preferably, the power mechanism consists of a motor base, a motor arranged in the motor base, a waterproof switch arranged on the side of the motor base, a cam arranged on the motor output shaft, and a motor base cover arranged at the rear end of the motor base; a No. 1 motor base waterproof ring is arranged between the motor base and the motor base cover, and a No. 2 motor base waterproof ring is arranged at the motor output end.

[0014] Preferably, the slider is composed of a slider base plate, and a slider side plate arranged at the left or right end of the slider base plate and perpendicular to the slider base plate; the slider base plate is provided with a cam hole that penetrates the slider base plate from front to back, and the slider base plate is also provided with two elliptical limit holes that are respectively located on the left and right sides of the cam hole, a triangular mechanical unlocking groove is downwardly provided on the lower side of the slider base plate, a pair of spring limit bosses protruding toward the motor base are provided on the slider base plate, and an "L"-shaped limit clip is provided on the upper side of the slider base plate; the slider base plate is penetrated The screw of the elliptical limiting hole is fixed on the motor base and the slider substrate can reciprocate horizontally along the fixed position, and a slider spring is horizontally arranged between the spring limiting boss and the motor base; the thickness of the limiting clip is the same as that of the slider substrate, the short side of the limiting clip coincides with the upper side surface of the slider substrate and is fixed as a whole, and the long side of the limiting clip is perpendicular to the short side; the front end of the cam is arranged in the cam hole, and the limiting clip cooperates with the waterproof switch; the power mechanism also includes a mechanical key, and the shape and size of the top of the mechanical key match the mechanical unlocking groove.

[0015] Preferably, the locking structure consists of a knurled shaft with both ends fixed to a base, a chain with its front end fixed to the knurled shaft, a pin with its front end fixed to the rear end of the chain, and a handle sleeved on the outside of the pin; a rectangular through hole is provided at the end of the pin, which passes through the pin on the left and right and cooperates with the slider; a triangular clamping head is provided on the side of the slider side plate facing away from the slider base plate.

[0016] Preferably, the push plate mechanism is composed of a push plate arranged in a push plate slot, and a push plate spring having one end fixed to the push plate and the other end fixed to the rear side wall of the push plate slot.

[0017] Preferably, a cavity is provided at the rear of the base, which matches the power supply structure; the power supply structure consists of a battery box matching the cavity, a battery arranged in the battery box, and a battery cover arranged at the rear of the cavity of the base and fixed to the base by No. 2 machine screws.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] (1) The present invention is provided with an unlocking structure, which has a simple structure and comprehensive functions and can fully meet the requirements of the present application. It can effectively lock the latch when working and complete the unlocking operation when necessary. It can also be opened mechanically when a product malfunctions, which greatly improves the flexibility of product use and the convenience of maintenance.

[0020] (2) The present invention is provided with a control structure, which can not only complete the unlocking control according to the request of the consumer's mobile phone, but also provide feedback on its own current situation and usage, which can facilitate the enterprise to conduct statistics and records on the products, and better meet the needs of enterprise development.

[0021] (3) The present invention is more in line with social progress, thus meeting the needs of the public, increasing the scope of application of the product, and reducing the difficulty of using the product. At the same time, it can provide enterprises with a better management and recording method, thereby meeting the needs of enterprises for dataization and refinement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded view of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the slider of the present invention.

[0024] Figure 3 It is a top view of the base of the present invention.

[0025] Figure 4 It is a top view of the base and unlocking structure of the present invention.

[0026] Description of the reference numerals: 1. Silicone button; 2. QR code board; 3. Main PCBA board; 4. Mainboard waterproof silicone ring; 5. Upper shell; 6. Self-tapping screws; 7. Chain; 8. Latch; 9. Handle; 10. Slider; 11. Motor; 12. Motor base; 13. Mechanical key; 14. Push rod; 15. Fixing seat; 16. Battery box; 17. No. 1 machine screw; 18. Base; 19. No. 1 waterproof silicone sheet; 20. No. 2 waterproof silicone sheet; 21. Buzzer; 22. Nut; 23. Main PCBA board cover; 24. Countersunk screw; 2 5. Cam; 26. Slider spring; 27. Waterproof switch; 28. No. 1 motor seat waterproof ring; 31. Knurled shaft; 32. Motor base cover; 33. No. 2 machine screw; 34. Battery cover; 35. No. 2 motor seat waterproof ring; 36. Push plate; 37. Push plate spring; 101. Limit clip; 102. Slider base plate; 103. Cam hole; 104. Mechanical unlocking slot; 105. Chuck; 106. Slider side plate; 107. Spring limit boss; 181. Motor slot; 182. Slider slot; 183. Pin slot; 184. Push plate slot. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0028] Example

[0029] like Figure 1 As shown, a smart lock is arranged on a cart rod 14, including an upper shell 5, a control structure arranged on the lower side of the upper shell, a QR code plate 2 embedded in the upper side of the upper shell 5, a base 18 located below the upper shell 5 and matching the upper shell, an unlocking structure arranged on the upper side of the base 18, a power supply structure arranged behind the base 18, a locking structure arranged on the upper side of the rear of the base 18, and a fixed base 15 arranged on the lower front side of the base 18 and clamped on the cart rod 14 after cooperating with the base 18; the power supply structure is connected to the control structure and the unlocking structure at the same time.

[0030] The fixing seat 15 is fixed on the base 18 by a No. 1 machine screw 17 ; the base 18 is fixed to the lower side of the upper shell 5 by a self-tapping screw 6 .

[0031] The control structure consists of a main PCBA board cover 23, a mainboard waterproof silicone ring 4 arranged around the outer edge of the upper side of the main PCBA board cover 23, a main PCBA board 3 arranged in the main PCBA board cover 23, a silicone button 1 arranged on the upper side of the main PCBA board 3, a No. 1 waterproof silicone sheet 19 arranged on the lower side of the main PCBA board 3, a No. 2 waterproof silicone sheet 20 arranged on the lower side of the main PCBA board cover 23, and a buzzer 21 connected to the main PCBA board 3; the silicone button 1 passes through the upper shell 5.

[0032] The silicone button 1 penetrates the upper shell 5. The silicone button penetrates the upper shell, which allows relevant personnel to control the main PCBA board by pressing the silicone button. Therefore, in special circumstances, it is not necessary to connect and control through a smart device, which improves the flexibility of product use.

[0033] The function of the main PCBA board is to complete the data storage and control the motor and the honeycomb; when the No. 2 waterproof silicone sheet is touched, the main PCBA board will receive the trigger information so that the main PCBA board can store data such as the product's working status and number of uses.

[0034] During operation, the user uses a smart device to scan the QR code on the QR code board to establish a connection with the control structure, and issues corresponding unlocking instructions to the control structure through the smart device.

[0035] In addition, the user can also scan the QR code on the QR code pad to obtain the unlocking password from the server, and complete the unlocking command by entering the password through the silicone button.

[0036] A nut 22 is fixed to the lower side of the upper shell 5 , and a main PCBA cover 23 is fixed to the nut 22 by a countersunk screw 24 .

[0037] The base 18 is provided with a motor slot 181, a slider slot 182, a latch slot 183 and a push plate slot 184. A power mechanism is provided inside the motor slot 181, a slider 10 is provided inside the slider slot 182, and a push plate mechanism is provided inside the push plate slot 184; the slider slot 182 is located at the front end of the motor slot 181, and is respectively connected with the motor slot 181 and the latch slot 183, a slider spring 26 is provided on the slider 10, and the end of the slider 10 is inserted into the latch slot 183 under the elastic force of the slider spring 26, and the push plate slot 184 is connected with the latch slot 183; the power mechanism is connected to the power supply structure through the main PCBA board 3.

[0038] The power mechanism consists of a motor base 12, a motor 11 arranged in the motor base 12, a waterproof switch 27 arranged on the side of the motor base 12, a cam 25 arranged on the output shaft of the motor 11, and a motor base cover 32 arranged at the rear end of the motor base 12; a No. 1 motor base waterproof ring 28 is arranged between the motor base 12 and the motor base cover 32, and a No. 2 motor base waterproof ring 35 is arranged at the output end of the motor 11.

[0039] By setting the cam, the slider can be effectively pushed when the motor is running. The specific cam setting method is the prior art in this field. Those skilled in the art can set and use the cam according to the above description and in combination with the prior art without creative labor, so it will not be described in detail here.

[0040] The main function of the power mechanism is to drive the slider to slide. When the motor rotates, the cam will rotate with the output shaft of the motor. When the protruding part of the cam runs to the left end of the cam hole, the cam can drive the slider to slide to the left as a whole by pushing the left side wall of the cam hole, thereby disengaging the right end of the slider from the rectangular through hole of the latch, so that the latch can be ejected from the latch slot under the thrust of the push block.

[0041] The slider 10 is composed of a slider base plate 102 and a slider side plate 106 arranged at the left or right end of the slider base plate 102 and perpendicular to the slider base plate 102; the slider base plate 102 is provided with a cam hole 103 that passes through the slider base plate 102 from front to back, and the slider base plate 102 is also provided with two elliptical limiting holes located on the left and right sides of the cam hole 103 respectively, and a triangular mechanical unlocking groove 104 is downwardly provided on the lower side of the slider base plate 102, and a pair of spring limiting bosses 107 protruding toward the motor base 12 are provided on the slider base plate 102, and an "L"-shaped limiting clip 101 is provided on the upper side of the slider base plate 102; the slider base plate 102 is The screw passing through the elliptical limiting hole is fixed on the motor base 12 and the slider substrate 102 can reciprocate horizontally along the fixed position. A slider spring 26 is horizontally arranged between the spring limiting boss 107 and the motor base 12; the thickness of the limiting clip 101 is the same as that of the slider substrate 102, the short side of the limiting clip 101 coincides with the upper side of the slider substrate 102 and is fixed as a whole, and the long side of the limiting clip 101 is perpendicular to the short side; the front end of the cam 25 is arranged in the cam hole 103, and the limiting clip 101 cooperates with the waterproof switch 27; the power mechanism also includes a mechanical key 13, and the shape and size of the top of the mechanical key 13 match the mechanical unlocking groove 104.

[0042] The limit clip cooperates with the waterproof switch. After the slider rebounds, the limit clip can touch the waterproof switch, and then send corresponding instructions to the main PCBA board. After receiving the instructions, the main PCBA board disconnects the power supply to the motor to stop the motor from running.

[0043] The cam hole can effectively ensure the rotation space of the cam, and at the same time ensure that the cam can effectively push the slider to slide when rotating.

[0044] The purpose of setting a mechanical key is to enable the slider to be moved by external force when the device fails, so that the latch can be smoothly removed. In order to cooperate with the mechanical key, a through slot leading upward to the mechanical unlocking slot on the slider should be set on the base below the slider. When in use, the mechanical key is inserted into the through slot and the slider is moved in the corresponding direction.

[0045] The locking structure consists of a knurled shaft 31 with both ends fixed on the base 18, a chain 7 with the front end fixed on the knurled shaft 31, a pin 8 with the front end fixed to the tail end of the chain 7, and a handle 9 sleeved on the outside of the pin 8; a rectangular through hole is provided at the end of the pin 8, which passes through the pin 8 on the left and right and matches the slider 10; a triangular clamp 105 matching the pin is provided on the side of the slider side plate 106 facing away from the slider base plate 102.

[0046] The push plate mechanism is composed of a push plate 36 disposed in the push plate slot 184 , and a push plate spring 37 with one end fixed to the push plate 36 and the other end fixed to the rear side wall of the push plate slot 184 .

[0047] The push block always maintains a forward thrust under the action of the push block spring, so after the clamping head is separated from the rectangular through hole of the latch, the push block can quickly pop out the latch, which greatly improves the use effect of the product.

[0048] A cavity is provided at the rear of the base 18, which matches the power supply structure; the power supply structure consists of a battery box 16 matching the cavity, a battery arranged in the battery box 16, and a battery cover 34 arranged at the rear of the cavity of the base 18 and fixed to the base 18 by No. 2 machine screws 33.

[0049] Using a power supply for power supply is a prior art in the field, and those skilled in the art can complete the setting without creative work, so it will not be described in detail here.

[0050] When the bolt is inserted into the socket, the slider will be pushed to the left so that the bolt can be inserted smoothly, and the slider will be kept reset to the right under the action of the slider spring. After the bolt is fully inserted into the socket, the right end of the slider is inserted into the rectangular through hole of the bolt under the action of the slider spring, thereby completing the fixing of the bolt.

[0051] In addition, each structure of the present application can be set up by left-right mirroring, and its setting method and usage principle are the same as the above description. The changes made to the product of the present application by left-right mirroring should also be included in the protection scope of the present application.

[0052] When in use, this product is mainly set on the cart rod of the shopping mall shopping cart, and the front cart and the rear cart can be fixed together by inserting the pin of the front cart into the pin slot of the rear cart. This not only facilitates the maintenance of the shopping cart, but also enables consumers to pick up or return the cart when needed.

[0053] As described above, the present invention can be well implemented.

Claims

1. A smart lock, arranged on a trolley rod (14), characterized in that: The invention comprises an upper shell (5), a control structure arranged on the lower side of the upper shell, a two-dimensional code plate (2) embedded in the upper side of the upper shell (5), a base (18) located below the upper shell (5) and matching with the upper shell, an unlocking structure arranged on the upper side of the base (18), a power supply structure arranged behind the base (18), a locking structure arranged on the upper side of the rear of the base (18), and a fixing seat (15) arranged on the lower side of the front of the base (18) and clamped on the cart rod (14) after matching with the base (18); the power supply structure is connected to the control structure and the unlocking structure at the same time; the base (18) is provided with a motor slot (181), a slider slot (182), a latch slot (183) and a push plate slot (184); the motor slot (18 1) A power mechanism is arranged inside, a slider (10) is arranged inside the slider slot (182), and a push plate mechanism is arranged inside the push plate slot (184); the slider slot (182) is located at the front end of the motor slot (181), and is respectively connected with the motor slot (181) and the latch slot (183); a slider spring (26) is arranged on the slider (10), and the slider (10) has its end inserted into the latch slot (183) under the elastic force of the slider spring (26), and the push plate slot (184) is connected with the latch slot (183); the power mechanism is connected to the power supply structure through the main PCBA board (3); the power mechanism consists of a motor base (12), a motor (11) arranged in the motor base (12), The motor base (12) is composed of a waterproof switch (27) arranged on the side of the motor base (12), a cam (25) arranged on the output shaft of the motor (11), and a motor base cover (32) arranged at the rear end of the motor base (12); a first motor base waterproof ring (28) is arranged between the motor base (12) and the motor base cover (32), and a second motor base waterproof ring (35) is arranged at the output end of the motor (11); the slider (10) is composed of a slider base plate (102), and a slider side plate (106) arranged at the left end or the right end of the slider base plate (102) and perpendicular to the slider base plate (102); the slider base plate (102) is provided with a cam hole (103) that penetrates the slider base plate (102) from front to back, and the slider base plate (106) is provided with a cam hole (103) that penetrates the slider base plate (102) from front to back. The block substrate (102) is also provided with two elliptical limiting holes respectively located on the left and right sides of the cam hole (103); a triangular mechanical unlocking groove (104) is provided downwardly on the lower side of the slider substrate (102); a pair of spring limiting bosses (107) protruding in the direction of the motor base (12) are provided on the slider substrate (102); an "L"-shaped limiting clip (101) is provided on the upper side of the slider substrate (102); the slider substrate (102) is fixed to the motor base (12) by screws passing through the elliptical limiting holes, and the slider substrate (102) can reciprocate horizontally along a fixed position; a slider spring (26) is horizontally provided between the spring limiting boss (107) and the motor base (12);The thickness of the limit clip (101) is the same as that of the slider base plate (102); the short side of the limit clip (101) overlaps with the upper side of the slider base plate (102) and is fixed as one body; the long side of the limit clip (101) is perpendicular to the short side; the front end of the cam (25) is arranged in the cam hole (103); the limit clip (101) matches the waterproof switch (27); the power mechanism also includes a mechanical key (13); the shape and size of the top end of the mechanical key (13) match the mechanical unlocking slot (104).

2. A smart lock according to claim 1, characterized in that: The fixing seat (15) is fixed to the base (18) by means of a No. 1 machine screw (17); the base (18) is fixed to the lower side of the upper shell (5) by means of a self-tapping screw (6).

3. A smart lock according to claim 2, characterized in that: The control structure comprises a main PCBA board cover (23), a mainboard waterproof silicone ring (4) arranged around the outer edge of the upper side of the main PCBA board cover (23), a main PCBA board (3) arranged in the main PCBA board cover (23), a silicone button (1) arranged on the upper side of the main PCBA board (3), a No. 1 waterproof silicone sheet (19) arranged on the lower side of the main PCBA board (3), a No. 2 waterproof silicone sheet (20) arranged on the lower side of the main PCBA board cover (23), and a buzzer (21) connected to the main PCBA board (3); the silicone button (1) passes through the upper shell (5).

4. A smart lock according to claim 3, characterized in that: A nut (22) is fixed to the lower side of the upper shell (5), and the main PCBA board cover (23) is fixed to the nut (22) by means of a countersunk screw (24).

5. The smart lock according to claim 4, characterized in that: The lock structure comprises a knurled shaft (31) with both ends fixed to a base (18), a chain (7) with a front end fixed to the knurled shaft (31), a latch (8) with a front end fixed to the rear end of the chain (7), and a handle (9) sleeved on the outside of the latch (8); a rectangular through hole is provided at the end of the latch (8) and passes through the latch (8) on the left and right and matches the slider (10); and a triangular clamping head (105) matching the latch is provided on the side of the slider side plate (106) facing away from the slider base plate (102).

6. The smart lock according to claim 5, characterized in that: The push plate mechanism is composed of a push plate (36) disposed in a push plate slot (184), and a push plate spring (37) having one end fixed to the push plate (36) and the other end fixed to a rear side wall of the push plate slot (184).

7. The smart lock according to claim 1, characterized in that: A cavity is provided at the rear of the base (18), the cavity matching the power supply structure; the power supply structure comprises a battery box (16) matching the cavity, a battery arranged in the battery box (16), and a battery cover (34) provided at the rear of the cavity of the base (18) and fixed to the base (18) by a No. 2 machine screw (33).

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