Door and window magnetic sensor with alarm function

Abstract

The utility model belongs to the field of magnetic sensors, and particularly relates to a door and window magnetic sensor with an alarm function, which comprises an upper magnetic sensor and a lower magnetic sensor. The top of the upper magnetic sensor is fixedly connected with an emergency battery pack, one end of the emergency battery pack electrically communicates with a motor, and an output port of the motor is rotationally connected with a lead screw. Through cooperative use of a lead screw and an emergency battery pack, after a sensor fails or is powered off, the emergency battery pack can transmit a power source to a motor, and the motor drives the lead screw to rotate, so that an internal limiting rod is driven to move downwards to enter a limiting hole, and the electromagnetic door is fixed; when a person moves, the control assembly transmits power through the emergency battery pack, the loudspeaker starts to give an alarm, and the warning lamp starts to flicker, so that the alarm effect is achieved, and after power supply is recovered, the motor rotates reversely to drive the limiting rod to be separated from the limiting hole.

Description

Technical Field

[0001] The utility model relates to the field of magnetic sensors, in particular to a door and window magnetic sensor with an alarm function. Background Art

[0002] Magnetic sensors are devices that detect corresponding physical quantities by converting changes in the magnetic properties of sensitive components caused by external factors such as magnetic field, current, stress strain, temperature, and light into electrical signals. Magnetic sensors are widely used in modern industry and electronic products to measure physical parameters such as current, position, and direction by sensing magnetic field strength. In the prior art, there are many different types of sensors used to measure magnetic fields and other parameters.

[0003] The existing magnetic sensors are easily disturbed by external magnetic fields when working, and have poor reliability. After the power is cut off, the magnetic sensors will not issue a warning function, and lack the effect of alarming and warning after emergencies. Therefore, a door and window magnetic sensor with an alarm function is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model proposes a door and window magnetic sensor with an alarm function to solve the problems that the existing magnetic sensors are easily disturbed by the external magnetic field when working, have poor reliability, and will not issue a warning function after the power is cut off, lacking the effect of alarming and early warning after emergencies.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a door and window magnetic sensor with an alarm function described in the utility model comprises an upper magnetic sensor and a lower magnetic sensor; the top of the upper magnetic sensor is fixedly connected to an emergency battery pack, one end of the emergency battery pack is electrically connected to a motor, the output port of the motor is rotatably connected to a screw rod, the surface of the screw rod is rotatably connected to a limit rod, one side of the lower magnetic sensor is fixedly connected to a limit block, the top of the limit block is provided with a limit hole used in conjunction with the limit rod, the outer side of the upper magnetic sensor is fixedly connected to an infrared sensor, and the top of the upper magnetic sensor is fixedly connected to a speaker.

[0006] Preferably, warning lights are fixedly connected to both sides of the speaker.

[0007] Preferably, an arc block is fixedly connected to one side of the upper magnetic sensor, guide blocks are fixedly connected to both sides of the limit rod, and guide grooves for use with the guide blocks are provided on both sides of the inner wall of the arc block.

[0008] Preferably, dustproof nets are fixedly connected to both sides of the speaker.

[0009] Preferably, the infrared sensor, speaker and motor are all electrically connected to the emergency battery pack.

[0010] Preferably, a charging port is provided on the top of the emergency battery pack.

[0011] The utility model is beneficial in that:

[0012] 1. The utility model sets a screw rod and an emergency battery pack for use. When a sensor fails or a power outage occurs, the emergency battery pack will transmit power to the motor, and the motor drives the screw rod to rotate, thereby driving the internal limit rod to move downward, thereby entering the limit hole to fix the electromagnetic door, so that the external infrared sensor starts to operate. After human activity occurs, the control component transmits power through the emergency battery pack, the speaker starts to alarm, and the warning light starts to flash, thereby achieving the alarm effect. After the power supply is restored, the motor reverses to drive the limit rod out of the limit hole;

[0013] 2. The utility model sets the guide block and the guide groove for use together, so that the limit rod can only move up and down, and the deviation is prevented. The limit rod is fixed to move up and down, and the stability during movement is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the screw rod and the limit rod structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the infrared sensor of the utility model;

[0018] Figure 4 This is a cross-sectional view of the guide groove and arc block of the utility model.

[0019] In the figure: 1. Upper magnetic sensor; 2. Lower magnetic sensor; 3. Emergency battery pack; 4. Motor; 5. Screw; 6. Limit rod; 7. Limit block; 8. Limit hole; 9. Infrared sensor; 10. Speaker; 11. Warning light; 12. Arc block; 13. Guide block; 14. Guide groove; 15. Dust net; 16. Charging port. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Terms such as "upper", "above", "lower", "below", "first end", "second end", "one end", "the other end" used in the present application to represent spatial relative positions are used to describe the relationship between a unit or feature as shown in the accompanying drawings relative to another unit or feature for the purpose of convenience of explanation. Terms of spatial relative position may be intended to include different orientations of the device in use or work other than the orientation shown in the figure. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptors used herein are interpreted accordingly.

[0021] In addition, the terms "installed", "set", "provided with", "connected", "slidingly connected", "fixed", and "sleeved" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4As shown, a door and window magnetic sensor with an alarm function comprises an upper magnetic sensor 1 and a lower magnetic sensor 2; an emergency battery pack 3 is fixedly connected to the top of the upper magnetic sensor 1, one end of the emergency battery pack 3 is electrically connected to a motor 4, an output port of the motor 4 is rotatably connected to a screw rod 5, the surface of the screw rod 5 is rotatably connected to a limit rod 6, one side of the lower magnetic sensor 2 is fixedly connected to a limit block 7, a limit hole 8 used in conjunction with the limit rod 6 is provided on the top of the limit block 7, an infrared sensor 9 is fixedly connected to the outer side of the upper magnetic sensor 1, a speaker 10 is fixedly connected to the top of the upper magnetic sensor 1, warning lights 11 are fixedly connected to both sides of the speaker 10, and the infrared sensor 9, the speaker 10 and the motor 4 are all electrically connected to the emergency battery pack 3;

[0024] During operation, by setting the screw rod 5 and the emergency battery pack 3 for use together, after the sensor fails or the power is cut off, the emergency battery pack 3 will supply power to the motor 4, and the motor 4 will drive the screw rod 5 to rotate, thereby driving the internal limit rod 6 to move downward, so that it enters the limit hole 8, and fixes the electromagnetic door, so that the external infrared sensor 9 starts to operate. After the human activity occurs, the control component transmits power through the emergency battery pack 3, the speaker 10 starts to alarm, and the warning light 11 starts to flash, thereby achieving the alarm effect. After the power supply is restored, the motor 4 reverses to drive the limit rod 6 to disengage from the limit hole 8.

[0025] Furthermore, an arc block 12 is fixedly connected to one side of the upper magnetic sensor 1, and guide blocks 13 are fixedly connected to both sides of the limit rod 6. Guide grooves 14 for use with the guide blocks 13 are provided on both sides of the inner wall of the arc block 12;

[0026] During operation, the guide block 13 and the guide groove 14 are used in coordination to ensure that the limit rod 6 can only move up and down, thereby preventing deviation. The limit rod 6 is fixed so that it can only move up and down, thereby increasing stability during movement.

[0027] Furthermore, dustproof nets 15 are fixedly connected to both sides of the speaker 10, and a charging port 16 is provided on the top of the emergency battery pack 3;

[0028] During operation, the dustproof net 15 is provided to reduce the ingress of dust, thereby reducing the internal sound, and the charging port 16 facilitates the connection of the circuit.

[0029] Working principle: When a sensor fails or a power outage occurs, the emergency battery pack 3 will supply power to the motor 4, and the motor 4 will drive the screw rod 5 to rotate, thereby driving the internal limit rod 6 to move downward, and the limit rod 6 will drive the guide block 13 to move in the guide groove 14, thereby entering the limit hole 8, thereby fixing the electromagnetic door, and the external infrared sensor 9 will start to operate. After human activity occurs, the control component transmits power through the emergency battery pack 3, the speaker 10 starts to alarm, and the warning light 11 starts to flash, thereby achieving the alarm effect. After the power supply is restored, the motor 4 reverses to drive the limit rod 6 out of the limit hole 8.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A door and window magnetic sensor with an alarm function, comprising an upper magnetic sensor (1) and a lower magnetic sensor (2); characterized in that: The top of the upper magnetic sensor (1) is fixedly connected to an emergency battery pack (3), one end of the emergency battery pack (3) is electrically connected to a motor (4), an output port of the motor (4) is rotatably connected to a lead screw (5), the surface of the lead screw (5) is rotatably connected to a limit rod (6), one side of the lower magnetic sensor (2) is fixedly connected to a limit block (7), the top of the limit block (7) is provided with a limit hole (8) used in conjunction with the limit rod (6), the outer side of the upper magnetic sensor (1) is fixedly connected to an infrared sensor (9), and the top of the upper magnetic sensor (1) is fixedly connected to a speaker (10).

2. A door and window magnetic sensor with alarm function according to claim 1, characterized in that: Warning lights (11) are fixedly connected to both sides of the speaker (10).

3. The door and window magnetic sensor with alarm function according to claim 1, characterized in that: An arc block (12) is fixedly connected to one side of the upper magnetic sensor (1), guide blocks (13) are fixedly connected to both sides of the limit rod (6), and guide grooves (14) for use with the guide blocks (13) are provided on both sides of the inner wall of the arc block (12).

4. The door and window magnetic sensor with alarm function according to claim 1, characterized in that: Dust-proof nets (15) are fixedly connected to both sides of the loudspeaker (10).

5. The door and window magnetic sensor with alarm function according to claim 1, characterized in that: The infrared sensor (9), the speaker (10) and the motor (4) are all electrically connected to the emergency battery pack (3).

6. The door and window magnetic sensor with alarm function according to claim 1, characterized in that: A charging port (16) is provided on the top of the emergency battery pack (3).

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