Electric two-lock device

Abstract

The utility model relates to an electric two-lock device, which comprises a cover body, a motor, a spring bolt, a bottom plate and a switch, the cover body is buckled on the bottom plate to form a mounting cavity, the motor is fixed on the bottom plate, a screw rod is further arranged on the bottom plate, the motor drives the screw rod to rotate, the spring bolt is connected with the screw rod through a nut sliding block, and the switch is connected with the screw rod. The motor is further connected with a power source, a switch is further arranged between the motor and the power source, and the motor drives the spring bolt to stretch out of or retract into the mounting cavity. The switch is matched with the motor to drive the spring bolt to stretch out and draw back, a battery can be disassembled by one hand, operation is convenient, the motor drives the spring bolt through the lead screw matched with the nut sliding block, control is more accurate and stable, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to an electric double-lock device, and more specifically, to an electric double-lock device for the battery installation position of an electric-assisted vehicle. Background Art

[0002] For vehicles such as electric-assisted vehicles and electric vehicles on the market currently, in order to facilitate the installation and disassembly of the battery and the vehicle, a double-lock structure is generally provided at the battery installation location, especially at the connection between the battery cover and the battery box; currently, the battery cover is basically locked by manually sliding an external plastic buckle. When operating, one hand needs to press the buckle and the other hand needs to hold the battery, which is inconvenient to operate. Moreover, after using the above structure for too long, it will age and become loose, losing the locking function. Content of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an electric double-lock device, which is convenient to operate, has a firm and stable structure, and a long service life.

[0004] In order to achieve the above utility model purpose, the utility model adopts the following technical solutions:

[0005] An electric double-lock device includes a cover body, a motor, a lock tongue, a bottom plate and a switch. The cover body is buckled on the bottom plate to form an installation cavity. The motor is fixed on the bottom plate. A lead screw is also provided on the bottom plate. The motor drives the lead screw to rotate. The lock tongue is connected to the lead screw through a nut slider. The motor is also connected to a power source, and a switch is provided between the motor and the power source. The motor drives the lock tongue to extend or retract into the installation cavity.

[0006] As a preferred solution: A lock tongue catch block is provided on one side of the installation cavity. A lock tongue slot is provided on the lock tongue catch block. When the lead screw rotates, it drives the lock tongue to insert into or leave the lock tongue slot.

[0007] As a preferred solution: The motor is fixed on the bottom plate through a mounting bracket. The lead screw is also rotatably provided on the mounting bracket. A limiting rod is provided in parallel on one side of the lead screw. A notch is provided on one side of the nut slider. The limiting rod penetrates through the notch.

[0008] As a preferred solution: The lock tongue is in a plate shape, and two limiting blocks are provided at intervals on the lower end surface of the lock tongue. The nut slider is clamped between the two limiting blocks.

[0009] As a preferred solution: The limiting block is in an L shape, and the lower part of the limiting block is located below the lead screw.

[0010] As a preferred solution: The bottom plate is in an L shape, and a through hole for the lock tongue to extend and retract is formed between the bottom plate and the cover body.

[0011] As a preferred solution: the switch is a button, a knob, a toggle or a fingerprint sensor.

[0012] As a preferred solution: the switch is a fingerprint sensor, the motor is a micro stepping motor, a transistor Q1 is further connected between the power supply and the micro stepping motor, two pins of the transistor are connected to the positive electrode of the micro stepping motor and the positive electrode of the power supply, a signal output end of the fingerprint sensor is connected to another pin of the transistor Q1 through a resistor R1, a diode D1 is further connected in parallel on the micro stepping motor, and a capacitor C1 is connected in parallel on the micro stepping motor and the transistor Q1.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model uses a switch to cooperate with a motor to drive the expansion and contraction of the lock tongue, and the battery can be disassembled with one hand, which is convenient to operate. Moreover, the motor drives the lock tongue through a lead screw cooperating with a nut slider, the control is more accurate and stable, and the service life is longer. Description of the Drawings

[0015] The schematic diagrams in the specification that form a part of the present application are used to provide a further understanding of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute a limitation to the present application.

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the lock tongue leaving the lock tongue slot of the present utility model;

[0018] Figure 3 is an exploded structure schematic diagram of the present utility model;

[0019] Figure 4 is an electrical schematic diagram of the control of the motor of the present utility model.

[0020] The reference numerals are: 1, cover body; 2, motor; 21, lead screw; 22, nut slider; 3, lock tongue; 31, limiting block; 4, lock tongue block; 41, lock tongue slot; 5, bottom plate; 6, mounting bracket; 61, limiting rod. Detailed Description of the Embodiments

[0021] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanations of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plural" is two or more, unless otherwise clearly defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0027] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments:

[0028] As Figures 1 to 3 shown, an electric double-lock device includes a cover body 1, a motor 2, a lock tongue 3, a bottom plate 5 and a switch. The cover body 1 is buckled on the bottom plate 5 to form an installation cavity. The bottom plate 5 is L-shaped, and a through hole for the lock tongue 3 to extend and retract is formed between the bottom plate 5 and the cover body 1.

[0029] The motor 2 is fixed on the bottom plate 5 through a mounting bracket 6. The lead screw 21 is also rotatably arranged on the mounting bracket 6. The motor 2 drives the lead screw 21 to rotate. The lock tongue 3 is connected to the lead screw 21 through a nut slider 22. The motor 2 is also connected to a power supply, and a switch is further provided between the motor 2 and the power supply. The motor 2 drives the lock tongue 3 to extend or retract into the installation cavity.

[0030] A lock tongue catch block 4 is further provided on one side of the installation cavity. A lock tongue slot 41 is provided on the lock tongue catch block 4. When the lead screw 21 rotates, it drives the lock tongue 3 to insert into or leave the lock tongue slot 41.

[0031] The lock tongue 3 is plate-shaped, and two limit blocks 31 are spaced on the lower end surface of the lock tongue 3. The nut slider 22 is clamped between the two limit blocks 31. The limit blocks 31 are L-shaped, and the lower parts of the limit blocks 31 are located below the lead screw 21. A limit rod 61 is further arranged in parallel on one side of the lead screw 21. A notch is provided on one side of the nut slider 22, and the limit rod penetrates through the notch.

[0032] The motor 2 is a micro stepping motor, and the switch is a button, a knob, a toggle button or a fingerprint sensor. When the switch is a fingerprint sensor, a transistor Q1 is further connected between the power supply and the micro stepping motor. Two pins of the transistor are connected to the positive electrode of the micro stepping motor and the positive electrode of the power supply. The signal output end of the fingerprint sensor is connected to another pin of the transistor Q1 through a resistor R1. A diode D1 is also connected in parallel on the micro stepping motor. A capacitor C1 is connected in parallel on the micro stepping motor and the transistor Q1 (as Figure 4 shown).

[0033] The utility model is used for a battery lock of an electric power-assisted bicycle. A micro-stepping motor is fixed on a base plate, a fingerprint sensor is connected to the micro-stepping motor, a power supply end of the micro-stepping motor is connected to an internal battery, and a fingerprint sensor is placed on the handlebar of the electric power-assisted bicycle. When the lock needs to be locked, the owner inputs the fingerprint through the fingerprint sensor, and then the internal electronic control element recognizes the fingerprint and outputs an electrical signal. The micro-stepping motor (lock tongue motor) is controlled to operate by the controller. The micro-stepping motor (lock tongue motor) controls the rotation of the screw rod so that the nut slider slides toward the lock tongue slot 41, and the nut slider pushes the lock tongue to slide into the lock tongue slot to achieve the locking function. Conversely, when unlocking is required, the owner inputs the fingerprint, the electronic control element determines the state, and drives the nut slider back, thereby driving the lock tongue to slide and unlock. The above structure is used for the second lock of the battery box, and the structure of the outer physical lock is eliminated, making locking and unlocking more convenient and safer, and having a longer service life.

[0034] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An electric double-lock device, characterized in that: It includes a cover body (1), a motor (2), a locking tongue (3), a bottom plate (5) and a switch. The cover body (1) is buckled on the bottom plate (5) to form an installation cavity. The motor (2) is fixed on the bottom plate (5). A lead screw (21) is also provided on the bottom plate (5). The motor (2) drives the lead screw (21) to rotate. The locking tongue (3) is connected to the lead screw (21) through a nut slider (22). The motor (2) is also connected to a power supply, and a switch is provided between the motor (2) and the power supply. The motor (2) drives the locking tongue (3) to extend or retract into the installation cavity.

2. The electric double-lock device according to claim 1, wherein: A locking tongue catch block (4) is also provided on one side of the installation cavity. A locking tongue slot (41) is provided on the locking tongue catch block (4). When the lead screw (21) rotates, it drives the locking tongue (3) to insert into or leave the locking tongue slot (41).

3. The electric double-lock device according to claim 1, wherein: The motor (2) is fixed on the bottom plate (5) through a mounting bracket (6). The lead screw (21) is also rotatably arranged on the mounting bracket (6). A limiting rod (61) is arranged in parallel on one side of the lead screw (21). A notch is provided on one side of the nut slider (22). The limiting rod passes through the notch.

4. An electric double-lock device according to claim 1, characterized in that: The locking tongue (3) is in a plate shape, and two limiting blocks (31) are arranged at intervals on the lower end surface of the locking tongue (3). The nut slider (22) is clamped between the two limiting blocks (31).

5. The electric double-lock device according to claim 4, characterized in that: The limiting block (31) is in an L shape, and the lower part of the limiting block (31) is located below the lead screw (21).

6. The electric double-lock device according to claim 1, characterized in that: The bottom plate (5) is in an L shape, and a through hole for the locking tongue (3) to extend and retract is formed between the bottom plate (5) and the cover body (1).

7. The electric double-lock device according to claim 1, characterized in that: The switch is a button, a knob, a toggle button or a fingerprint sensor.

8. An electric double-lock device according to claim 1, characterized in that: The switch is a fingerprint sensor. The motor (2) is a micro stepping motor. A transistor Q1 is also connected between the power supply and the micro stepping motor. Two pins of the transistor are connected to the positive electrode of the micro stepping motor and the positive electrode of the power supply. The signal output end of the fingerprint sensor is connected to another pin of the transistor Q1 through a resistor R1. A diode D1 is also connected in parallel on the micro stepping motor. A capacitor C1 is connected in parallel on the micro stepping motor and the transistor Q1.

Images