Mailbox alarm device

Abstract

The embodiment of the utility model provides a mailbox alarm device which comprises a knob, an upper shell, a support, a circuit board and a mainboard, an inclination sensor is installed on the circuit board, an opening is formed in one side of the upper shell, the support and the circuit board are installed in the upper shell, the knob penetrates through the opening to be fixed to the support, the support is fixed to the circuit board, and when the knob rotates, the inclination sensor is installed on the circuit board. The circuit board is driven to rotate synchronously; and the inclination sensor is used for feeding back the inclination angle signal to the main board, so that the main board gives an alarm according to the inclination angle signal fed back by the inclination sensor. When the knob rotates, the circuit board is driven to rotate synchronously, so that the mailbox alarm device can adjust the initial angle of the inclination sensor according to different mailbox installation scenes, and the compatibility of the mailbox alarm device is improved.

Description

Technical Field

[0001] This application relates to the field of alarm technology, and in particular to a mailbox alarm device. Background Technology

[0002] Currently, some families still retain traditional communication methods, such as communicating via letters or emails, especially some elderly people. Mailboxes are usually placed outdoors, and users cannot immediately know when the postman delivers new mail. Furthermore, the mailboxes are often some distance from the house, requiring users to go outside to open them and check frequently, otherwise they might miss important mail. However, this frequent trips outside are inconvenient for some elderly people. Therefore, a common solution is to install a mailbox alarm device on the lid. This alarm device is connected to an indoor gateway. When mail arrives, the postman opens the mailbox lid, causing the alarm to rotate, triggering an internal tilt sensor that then sends an alarm notification to the user.

[0003] Most existing mailbox alarm devices are designed and developed for mailboxes with only a single opening angle, and their installation angles are relatively limited, resulting in poor compatibility. Utility Model Content

[0004] This application provides a mailbox alarm device. By opening a hole on one side of the upper shell and connecting a knob, the knob is fixed to a bracket inside the upper shell and directly fixed to a circuit board on which a tilt sensor is installed. When the knob is rotated, it drives the circuit board to rotate synchronously, thereby allowing the mailbox alarm device to adjust the initial angle of the tilt sensor for different mailbox installation scenarios, thus improving the compatibility of the mailbox alarm device.

[0005] The mailbox alarm device includes a knob, a top shell, a bracket, a printed circuit board (PCB), and a main board. A tilt sensor is mounted on the PCB. An opening is present on one side of the top shell.

[0006] The bracket and circuit board are installed inside the upper shell. The knob passes through the opening to be fixed to the bracket. The bracket is fixed to the circuit board. When the knob is turned, it drives the circuit board to rotate synchronously.

[0007] The tilt sensor is used to feed back the tilt angle signal to the motherboard, so that the motherboard can perform an alarm operation based on the tilt angle signal fed back by the tilt sensor.

[0008] Specifically, the knob is equipped with a knob handle structure or a non-circular recessed structure. This allows for the application of an external rotational force to the knob handle structure or the non-circular recessed structure during actual use, thereby enabling the knob to rotate.

[0009] In addition, the knob is equipped with a snap-fit ​​structure, and the bracket is equipped with a female snap-fit ​​structure. By passing the snap-fit ​​structure on the knob through the female snap-fit ​​structure on the bracket, the knob and the bracket can be fixed together.

[0010] Furthermore, the knob is also equipped with a positioning structure, and the bracket is equipped with a positioning hole. When the knob is fixed to the bracket, the positioning structure passes through the positioning hole to achieve synchronous movement between the knob and the bracket.

[0011] Specifically, the upper shell has a limiting structure inside, and the bracket has a rotation limiting structure. When the bracket is rotated using the knob, the limiting structure on the upper shell blocks the rotation limiting structure on the bracket, thus limiting the bracket's rotation. This prevents the knob from rotating too much in the same direction, which could break the connection between the motherboard and the circuit board.

[0012] Specifically, the bracket is equipped with heat-riveting posts, and the circuit board has heat-riveting holes. The bracket and circuit board are secured together through the cooperation of the heat-riveting posts and holes. This heat-riveting method improves the stability between the bracket and the circuit board.

[0013] Furthermore, there are multiple hot-riveting posts and hot-riveting holes. The combination of multiple hot-riveting posts and hot-riveting holes can further improve the stability between the bracket and the circuit board.

[0014] Specifically, the device also includes a sealing ring. A sealing ring mounting surface is provided on the contact surface between the upper shell and the knob, and the sealing ring is mounted on this surface. When the knob is snapped into the bracket, it presses against the sealing ring between the knob and the upper shell. This not only provides a certain degree of dust and water protection, but also, by pulling the knob together and pressing the sealing ring, transforms the friction between the knob and the sealing ring into a damping sensation for knob rotation, and also achieves a positioning function.

[0015] Specifically, the circuit board has soldering holes for soldering connecting wires, which in turn connect to the motherboard. The circuit board connects to the motherboard via these wires, allowing the motherboard to receive tilt signals from the tilt sensor. This enables the motherboard to subsequently execute alarm actions based on the tilt signal.

[0016] Optionally, the tilt sensor can be a ball-type tilt sensor. When the ball-type tilt sensor tilts, the ball inside the sensor is subjected to gravity and rolls from one end of the ball-type tilt sensor to the other end, thereby turning on the internal circuit of the ball-type tilt sensor. At this time, the ball-type tilt sensor transmits an electrical signal to the main board, so that the main board can determine that the tilt angle of the device has reached the alarm trigger threshold based on the electrical signal, and then the main board performs an alarm operation.

[0017] Optionally, the tilt sensor can also be a liquid capacitive tilt sensor. When the liquid capacitive tilt sensor tilts, the capacitance value changes based on the movement of the liquid within the container, allowing the motherboard to determine the tilt angle based on this capacitance value. Similarly, when the tilt angle reaches the alarm trigger threshold, the motherboard executes an alarm operation.

[0018] As can be seen, this embodiment of the application achieves various angle adjustments of the tilt sensor within a limited space, and also achieves a certain degree of waterproofing based on the cooperation of the sealing ring. Inside the upper shell, the bracket acts as a bridge between the knob and the circuit board; the external bracket and the knob are connected by snaps (more convenient and space-saving than other connection methods), and the sealing ring is pressed by the snaps, which not only achieves a certain degree of dust and water resistance, but also allows the friction between the knob and the sealing ring to be converted into a damping sensation when the knob rotates, and also achieves a positioning function; the internal bracket and the circuit board on which the tilt sensor is installed are connected by thermal riveting, which achieves the linkage between the knob and the tilt sensor while further saving space and ensuring the aesthetic appearance of the product. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A front sectional view of a mailbox alarm device provided in an embodiment of this application;

[0021] Figure 2 A front sectional view of the upper shell provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of a knob provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a bracket provided in an embodiment of this application;

[0024] Figure 5 A schematic diagram of a circuit board structure provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the tilt angle of a tilt sensor provided in an embodiment of this application;

[0026] Figure 7This is a schematic diagram of another upper shell structure provided in an embodiment of this application;

[0027] Reference numerals: 110, upper shell; 111, limiting structure; 112, sealing ring mounting surface; 113, bracket mounting surface; 120, knob; 121, knob handle structure; 122, snap-fit ​​structure; 123, positioning structure; 130, bracket; 131, rotation limiting structure; 132, positioning hole; 133, hot riveting post; 134, female snap-fit ​​structure; 140, circuit board; 142, hot riveting hole; 143, welding hole; 141, tilt sensor; 150, main board; 160, sealing ring. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0029] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps is not limited to the steps listed, but may optionally include steps not listed, or may optionally include other steps inherent to these processes, methods, products, or apparatuses.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] Please see Figure 1 , Figure 1 A front sectional view of a mailbox alarm device provided in an embodiment of this application, as shown below. Figure 1 As shown, it includes an upper shell 110, a knob 120, a bracket 130, a circuit board 140, a tilt sensor 141, a main board 150, and a sealing ring 160.

[0032] The bracket 130, circuit board 140, tilt sensor 141, and main board 150 are all installed inside the upper shell 110; the knob 120 is connected to the bracket 130 inside the upper shell 110 through an opening on one side of the upper shell 110; the bracket 130 is fixed to the circuit board 140; the tilt sensor 141 is installed on the circuit board 140; the circuit board 140 is connected to the main board 150 through a connecting wire; a sealing ring 160 is also installed between the knob 120 and the upper shell 110.

[0033] The upper casing 110 serves as the outer shell of the entire device, protecting the internal electronic components from external environmental influences. The upper casing 110 can be made of plastic or metal, possessing a certain degree of strength and weather resistance.

[0034] Knob 120 is used to rotate the tilt sensor 141, allowing the mailbox alarm device to be adapted to various installation angles. Knob 120 can also be made of plastic or metal, offering good wear resistance and durability.

[0035] The bracket 130 is used to fix the circuit board 140 and the tilt sensor 141. It not only ensures that they remain stable during operation, but also allows the bracket 130 to rotate when the knob 120 is fixed to the bracket 130, so that the bracket 130 drives the circuit board 140 and the tilt sensor 141 to rotate.

[0036] Circuit board 140 is used to carry electronic components, including tilt sensor 141 and other control circuits, to realize signal processing and transmission functions. Circuit board 140 can be made of materials such as FR4, which have good insulation and conductivity.

[0037] The tilt sensor 141 is used to feed back a tilt angle signal to the mainboard 150 when the fuel tank lid is opened, so that the mainboard 150 can trigger an alarm based on the signal fed back by the tilt sensor 141. The tilt sensor 141 can be made of silicon-based materials, which have high sensitivity and reliability.

[0038] The mainboard 150 receives signals from the tilt sensor 141, processes the signals, and sends them to user devices (such as mobile phones, tablets, etc.) to achieve remote alarm functionality. The mainboard 150 can also be made of materials such as FR4, which have good insulation and conductivity.

[0039] The sealing ring 160 is used to prevent external substances such as water and dust from entering the device through the connection between the upper shell 110 and the knob 120, protecting the electronic components from damage. The sealing ring 160 can be made of rubber, which has good sealing performance and durability.

[0040] The following is a detailed description of each component:

[0041] Please see Figure 2 , Figure 2 A front sectional view of the upper shell provided in an embodiment of this application, such as... Figure 2 As shown, the upper shell 110 includes a limiting structure 111, a sealing ring mounting surface 112, and a bracket mounting surface 113.

[0042] The limiting structure 111 corresponds to the rotation limiting structure on the bracket. When the bracket 130 is rotated by the knob 120, the limiting structure 111 on the upper shell 110 blocks the rotation limiting structure on the bracket 130, thereby limiting the rotation of the bracket 130 and preventing the knob from rotating too much in the same direction, which could break the connection line between the main board 150 and the circuit board 140.

[0043] The sealing ring mounting surface 112 is used to mount the sealing ring 160. Understandably, the size of the sealing ring mounting surface 112 should correspond to the size of the sealing ring 160. When the knob 120 is assembled onto the upper shell 110, the knob 120 and the sealing ring mounting surface 112 together compress the sealing ring 160, thereby achieving the functions of waterproofing and increasing damping.

[0044] The bracket mounting surface 113 is used to mount the bracket 130.

[0045] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a knob provided in an embodiment of this application, as shown below. Figure 3 As shown, the knob 120 includes a knob handle structure 121, a snap-fit ​​structure 122, and a positioning structure 123.

[0046] In addition, the knob handle structure 121 can be replaced with a non-circular recessed structure. The knob handle structure 121 is used to apply external force to make the knob 120 rotate.

[0047] The snap-fit ​​structure 122 corresponds to the female snap-fit ​​structure on the bracket 130. By passing the snap-fit ​​structure 122 on the knob 120 through the female snap-fit ​​structure on the bracket 130, the knob 120 and the bracket 130 are fixed together.

[0048] The positioning structure 123 corresponds to the positioning hole on the bracket 130. When the knob 120 is fixed to the bracket 130, by passing the positioning structure 123 through the positioning hole on the bracket 130, the axial movement between the knob 120 and the bracket 130 can be reduced when the knob 120 is rotated.

[0049] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of a bracket provided in an embodiment of this application, as shown below. Figure 4 As shown, the bracket 130 includes a rotation limiting structure 131, a positioning hole 132, a hot riveting post 133, and a female buckle structure 134.

[0050] The rotation limiting structure 131 corresponds to the limiting structure 111 on the upper shell 110. During the rotation of the bracket 130 by the knob 120, the limiting structure 111 on the upper shell 110 blocks the rotation limiting structure 131 on the bracket 130, thereby limiting the rotation of the bracket 130 and preventing the knob from rotating too much in the same direction, which could break the connection line between the main board 150 and the circuit board 140.

[0051] The positioning hole 132 corresponds to the positioning structure 123 on the knob 120. When the knob 120 is fixed with the bracket 130, by passing the positioning structure 123 through the positioning hole on the bracket 130, the axial movement between the knob 120 and the bracket 130 can be reduced when the knob 120 is rotated in the future.

[0052] The hot riveting post 133 corresponds to the hot riveting hole on the circuit board 140, and there can be multiple hot riveting posts 133 and hot riveting holes. When the hot riveting post 133 is fixed to the hot riveting hole on the circuit board 140, a hot riveting method can be used. Hot riveting is a method of fixing plastic parts. It utilizes the thermoplastic properties of plastics to insert a columnar object on one component (such as the hot riveting post 133 on the bracket 130) into a hole on another component (such as the hot riveting hole on the circuit board 140) under heating conditions. Then, by cooling or further applying pressure, the columnar object is deformed, thereby achieving a permanent connection between the two components.

[0053] For example, place circuit board 140 above bracket 130, ensuring the hot riveting hole aligns with the hot riveting post 133. Gently press down on circuit board 140 to allow the hot riveting post 133 to pass through the corresponding hot riveting hole. Use a specialized hot riveting tool, which typically has a heating tool and a clamp for securing the assembly. The tip of the heating tool should be adapted to the shape and size of the hot riveting post to ensure even heating. Contact the tip of the heating tool with the top of the hot riveting post 133 and activate the heating function. Continue applying pressure until the hot riveting post 133 softens and begins to flow into the hot riveting hole. Once the hot riveting post 133 reaches sufficient temperature and begins to flow, maintain constant pressure, allowing the hot riveting post 133 to form a head or mushroom-shaped structure within the hot riveting hole. Turn off the heating tool, allowing the material to cool naturally or using cold air to accelerate the cooling process. At this point, the hot riveting post 133 will harden within the hot riveting hole, forming a strong connection. Ensure that each hot riveting point is fully cured and that there are no incompletely formed or poorly connected areas. Check for any excess plastic spillage; if so, it may need to be cleaned up. Additionally, the temperature should not be too high during the hot riveting process to avoid overheating and damaging other electronic components on the circuit board.

[0054] The female buckle structure 134 corresponds to the snap-fit ​​structure 122 on the knob 120. By passing the snap-fit ​​structure 122 on the knob 120 through the female buckle structure 134 on the bracket 130, the knob 120 and the bracket 130 are fixed.

[0055] Please see Figure 5 , Figure 5 This application provides a schematic diagram of the structure of a circuit board, as shown in the embodiment of the present application. Figure 5 As shown, the circuit board 140 includes a hot-drill hole 142 and a solder hole 143. A tilt sensor 141 is also mounted on the circuit board 140.

[0056] The hot riveting hole 142 corresponds to the hot riveting post 133 on the bracket 130. Based on the cooperation of the hot riveting hole 142 and the hot riveting post 133 in the aforementioned embodiment, the circuit board 140 and the bracket 130 can be fixed together.

[0057] The soldering hole 143 is used for soldering a connecting wire, the other end of which is used to connect to the motherboard 150.

[0058] Optionally, the tilt sensor 141 can be a ball-type tilt sensor. When the ball-type tilt sensor tilts, the ball inside the sensor is subjected to gravity and rolls from one end of the ball-type tilt sensor to the other end, thereby turning on the internal circuit of the ball-type tilt sensor. At this time, the ball-type tilt sensor transmits an electrical signal to the main board 150, so that the main board 150 can determine based on the electrical signal that the tilt angle of the device has reached the alarm trigger threshold, and the main board 150 will then issue an alarm.

[0059] In practical applications, the mailbox alarm device is installed on the mailbox lid. When the mailbox lid is opened, the mailbox alarm package will also tilt along with the movement of the mailbox lid. At this time, the state of the internal balls of the ball-type tilt sensor changes. As the mailbox lid opens to a certain angle, that is, when the tilt angle corresponding to the mailbox alarm device reaches the alarm trigger threshold, the circuit inside the ball-type tilt sensor is turned on, thereby transmitting an electrical signal to the main board 150, so that the main board 150 executes the alarm operation.

[0060] Optionally, the tilt sensor 141 can also be a liquid capacitive tilt sensor. When the liquid capacitive tilt sensor tilts, the capacitance value changes based on the movement of the liquid in the liquid capacitive tilt sensor within the container, so that the motherboard 150 can determine the tilt angle based on the capacitance value, and then determine whether to trigger a remote alarm based on the tilt angle.

[0061] In practical applications, the mailbox alarm device is installed on the mailbox lid. When the mailbox lid is opened, the liquid capacitive tilt sensor in the mailbox alarm device generates different capacitance values ​​based on the tilt of the mailbox alarm device. The main board 150 determines the tilt angle according to the different capacitance values. When the tilt angle is detected to be greater than the alarm trigger threshold, the main board 150 executes the alarm operation. This can avoid the mailbox alarm device from sounding when the mailbox lid tilts at a small angle due to external environmental factors (wind, rain, etc.).

[0062] Therefore, depending on the type of tilt sensor 141, the logic of the motherboard 150 in performing the alarm operation is also different.

[0063] When the tilt sensor 141 is a ball-type tilt sensor, the logic for the main board 150 to perform an alarm operation is as follows:

[0064] If an electrical signal is received from the ball-type tilt sensor, an alarm operation is executed.

[0065] When the tilt sensor 141 is a liquid capacitive tilt sensor, the logic for the main board 150 to perform an alarm operation is as follows:

[0066] If a first electrical signal is received from the liquid capacitive tilt sensor, determine the difference between the first and second electrical signals;

[0067] An alarm operation is executed when the difference between the first electrical signal and the second electrical signal is greater than a preset difference.

[0068] For example, please refer to Figure 6 , Figure 6 This is a schematic diagram of the tilt angle of a tilt sensor provided in an embodiment of this application, as shown below. Figure 6 As shown, when the tilt sensor 141 is in a vertical state, it is in its initial state. When the tilt sensor 141 tilts, if it can generate different tilt signals based on different angles, the motherboard 150 will issue a remote alarm when it detects that the tilt signal is between 25° and 155°. If the motherboard 150 detects that the tilt signal is between 0° and 25°, or between 155° and 180°, it will not issue a remote alarm. If the tilt sensor 141 cannot generate different tilt signals based on different angles, it can generate a tilt signal and transmit it to the motherboard 150 when the tilt angle is between 25° and 155°. The motherboard 150 will issue a remote alarm upon receiving this tilt signal. If the tilt angle is between 0° and 25°, or between 155° and 180°, the tilt sensor 141 will not generate a tilt signal.

[0069] Understandably, the tilt sensor 141 can also be a mercury switch, a capacitive switch, an accelerometer, or other device that can be used to detect changes in the angle of an object relative to a horizontal or vertical plane.

[0070] Please see Figure 7 , Figure 7 This is a schematic diagram of another upper shell structure provided in an embodiment of this application, as shown below. Figure 7 The upper shell 110 is rectangular in shape and has an opening on one side for mounting the knob 120.

[0071] As can be seen, the embodiments of this application achieve various angle adjustments of the tilt sensor 141 within a limited space, and with the cooperation of the sealing ring 160, a certain degree of waterproofing effect can also be achieved. Inside the upper shell 110, the bracket 130 acts as a bridge between the knob 120 and the circuit board 140. The external bracket 130 is connected to the knob 120 via a snap-fit ​​structure 123 and a female snap-fit ​​structure 134 (which is more convenient and occupies less space compared to other connection methods). At the same time, the snap-fit ​​structure 123 presses the sealing ring 160, which not only achieves a certain degree of dust and water protection, but also pulls the knob 120 to press the sealing ring 160, so that the friction between the knob 120 and the sealing ring 160 is converted into the damping sensation of the knob 120 rotating, and can also achieve a positioning function. The internal bracket 130 is connected to the circuit board 140 on which the tilt sensor 141 is installed via a hot riveting post 133 and a hot riveting hole 142. While realizing the movement linkage between the knob 120 and the tilt sensor 141, it further saves space and ensures the aesthetic appearance of the product.

[0072] Optionally, the motherboard 150 may include one or more of the following components: a processor, a memory, and a communication interface. The processor, memory, and communication interface are interconnected and perform communication with each other. The memory may store one or more computer programs, which may be configured to perform actions corresponding to the alarm operation performed by the motherboard 150 as described above when executed by one or more processors.

[0073] The processor may include one or more processing cores. The processor connects to various parts within the motherboard 150 using various interfaces and lines, and performs various functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in memory, and by calling data stored in memory. Optionally, the processor may be implemented using at least one of the following hardware forms: Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. It is understood that the aforementioned modem may also not be integrated into the processor and may be implemented separately through a communication chip.

[0074] The memory may include random access memory (RAM) or read-only memory (ROM). The memory can be used to store instructions, programs, code, code sets, or instruction sets. The memory may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as touch functionality, sound playback functionality, image playback functionality, etc.), and instructions for implementing the various method embodiments described above. The data storage area may also store data created by the motherboard 150 during use.

[0075] It is understood that the motherboard 150 may include more or fewer structural components than those shown in the above block diagram, such as a power module, physical buttons, a WiFi (Wireless Fidelity) module, a speaker, a Bluetooth module, sensors, etc., without limitation.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0077] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0078] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0079] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0080] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A mailbox alarm apparatus, characterized by comprising: The device comprises a knob, an upper shell, a support, a circuit board and a mainboard, the circuit board is installed with an inclination sensor, one side of the upper shell has an opening, wherein, The support and the circuit board are installed inside the upper shell, the knob passes through the opening to be fixed with the support, the support is fixed with the circuit board, when the knob rotates, the circuit board rotates synchronously; The inclination sensor is used for feeding back an inclination angle signal to the mainboard, so that the mainboard alarms according to the inclination angle signal fed back by the inclination sensor.

2. The apparatus of claim 1, wherein, The knob is provided with a knob handle structure or a non-circular recess structure.

3. The apparatus of claim 1 or 2, wherein, The knob is provided with a buckle structure, the support is provided with a female buckle structure, the buckle structure on the knob passes through the female buckle structure on the support to fix the knob with the support.

4. The apparatus of claim 1 or 2, wherein, The knob is provided with a positioning structure, the support is provided with a positioning hole, when the knob is fixed with the support, the positioning structure passes through the positioning hole to realize synchronous movement of the knob and the support.

5. The apparatus of claim 1 or 2, wherein, The upper shell is provided with a limiting structure inside, the support is provided with a rotation limiting structure, during rotation of the support by the knob, the limiting structure on the upper shell blocks the rotation limiting structure on the support to limit rotation of the support.

6. The apparatus of claim 1 or 2, wherein, The support is provided with a hot riveting column, the circuit board is provided with a hot riveting hole, based on cooperation of the hot riveting column and the hot riveting hole, the support is fixed with the circuit board.

7. The apparatus of claim 6, wherein, The hot riveting column and the hot riveting hole are multiple.

8. The apparatus of claim 1 or 2, wherein, The device further comprises a sealing ring, a contact surface of the upper shell and the knob is provided with a sealing ring mounting surface, the sealing ring is mounted on the sealing ring mounting surface.

9. The apparatus of claim 1, wherein, The circuit board is provided with a welding hole, the welding hole is used for welding a connecting line, the connecting line is used for connecting the mainboard.

10. The apparatus of claim 1, wherein, The inclination sensor is a ball type inclination sensor, when the ball type inclination sensor inclines, the ball in the sensor is rolled from one end to the other end under the action of gravity, the circuit inside the ball type inclination sensor is turned on, the ball type inclination sensor transmits an electric signal to the mainboard, so that the mainboard alarms based on the electric signal.

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