A personal safety alarm

Abstract

The utility model discloses a personal safety alarm, including alarm body and with the plug -pin of alarm body plug -in connection, alarm body inside is provided with main control circuit board and loudspeaker, and main control circuit board is provided with with the trigger switch of plug -pin top, and main control circuit board is fixedly provided with the luminous ware, when the plug -pin leaves trigger switch, main control circuit board will cause loudspeaker and luminous ware respectively send sound and light alarm, alarm body inside fixedly connected with the pearl of being used for clamping plug -pin, and the plug -pin is provided with the pit for pearl clamping, and the pearl includes the steel shell of one -end opening and the spring and steel ball in the steel shell interior, and the steel ball can roll in the steel shell opening under the action of spring and provide a force that pushes out to the outside, and is connected with the pit on the plug -pin. The present application is through the spring elasticity size adjustment plug -pin appropriate plug -in force of pearl, satisfies the use feeling of user, and the steel ball on pearl and the plastic shell of plug -pin carry out rolling friction, and durable.

Description

Technical Field

[0001] This utility model relates to the field of personal safety alarm devices, and in particular to a personal safety alarm device. Background Technology

[0002] Personal safety alarms are generally used to protect vulnerable groups such as the elderly, children, and women. When they encounter danger, they can trigger the device on the alarm to make it emit a piercing sound or flashing light, thereby deterring the other party or sending a distress signal.

[0003] In the existing technology, devices that trigger alarms usually use a plug. Many plugs on the market are made of metal parts that are inserted into a socket. When the plug is pulled out, it triggers the circuit program and emits an alarm sound and light.

[0004] Existing technology relies on the elastic friction between metals, which can cause the pin to be too tight and the pulling force to be too great. This can prevent children, the elderly, and women from pulling it out in an emergency, thus failing to trigger the alarm.

[0005] Some technologies achieve the function of a latch by tightly fitting the plastic shell of the product. However, these products wear down quickly due to the pulling friction between the plastic parts, eventually turning the tightly fitted plastic into a loose fit. As a result, the latch becomes loose after a period of use, with very little pulling force, making it easy for users to misoperate during use. This leads to frequent false alarms in non-emergency situations, and in some cases, the latch may even fall off and be lost.

[0006] Therefore, a new structural design is needed to reduce costs while also addressing the issue of excessive or insufficient pin pull-out force. Utility Model Content

[0007] The purpose of this utility model is to provide a personal safety alarm device to solve the technical problem in the prior art where the pull-out force of the pin is too large or too small, resulting in inconvenience in use.

[0008] To solve the above-mentioned technical problems, this utility model provides a personal safety alarm, including an alarm body and a pin that is plugged into and detached from the alarm body. One end of the alarm body is provided with a pin engagement hole for plugging and detaching the pin. The alarm body is provided with a main control circuit board and a speaker. The main control circuit board is provided with a trigger switch that is abutted against the pin at the end near the pin engagement hole. A light emitter is fixedly provided on the main control circuit board. The main control circuit board is electrically connected to the trigger switch, the speaker, and the light emitter. When the pin is removed from the trigger switch, the main control circuit board will trigger the speaker and the light emitter to emit sound and light alarms, respectively.

[0009] The alarm body has symmetrically connected ball bearings on both sides for engaging the pin, and the top of the pin has recesses on both sides for engaging the ball bearings.

[0010] Preferably, the ball includes a steel shell with one open end and a spring and a steel ball located inside the steel shell. The steel ball is located at the opening of the steel shell, and the diameter of the steel ball is larger than the opening of the steel shell. The steel ball can roll at the opening of the steel shell under the action of the spring and provide an outward pushing force. The steel ball can engage with the recess on the pin.

[0011] Preferably, the alarm body includes an upper cover and a bottom shell that are snapped or screwed together. The bottom shell is provided with a horn groove. The horn groove and the upper cover are respectively provided with through holes for sound generation at the positions corresponding to the horn. The upper cover is provided with a light-emitting through hole at the position corresponding to the light emitter.

[0012] Preferably, the top cover, bottom shell, and pin are made of plastic material, including ABS, PC, or ABS+PC.

[0013] Preferably, the dial beads are fixed to the upper cover and the bottom shell respectively.

[0014] Preferably, the main control circuit board can be a PCB circuit board.

[0015] Preferably, the light emitter can be an LED lamp.

[0016] Preferably, the other end of the pin is provided with a pin pull ring.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This application applies a ball bearing to an alarm device, using it to function as a latch while providing a good tactile feel. The spring force on the ball bearing provides appropriate insertion and extraction force, and the spring is adjustable, allowing for adjustable latch force to meet user needs. Simultaneously, the steel ball on the ball bearing rolls and rubs against the plastic housing of the latch, ensuring durability. Attached Figure Description

[0019] Figure 1 This is an exploded view of the structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a side sectional view of the bead-shifting mechanism of this utility model;

[0022] Figure 4 This is a side sectional view of the overall structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the trigger switch of this utility model.

[0024] Attached reference numerals: 1. Main control circuit board; 2. Toggle ball; 3. Pin; 4. Trigger switch; 5. Speaker; 6. Light emitter; 7. Top cover; 8. Bottom shell; 9. Steel shell; 10. Spring; 11. Steel ball. Detailed Implementation

[0025] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, top, bottom, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. 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 IoT terminal that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or IoT terminals.

[0026] Furthermore, the reference to "embodiment" herein 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.

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] like Figure 1-2As shown in Figures 4-5, this utility model provides a personal safety alarm, including an alarm body and a plug 3 that is pluggably connected to the alarm body. One end of the alarm body is provided with a plug engagement hole for plugging and unplugging the plug 3. The alarm body is provided with a main control circuit board 1 and a speaker 5. The main control circuit board 1 is provided with a trigger switch 4 that is connected to the plug at the end near the plug engagement hole. A light emitter 6 is fixedly provided on the main control circuit board 1. The main control circuit board 1 is electrically connected to the trigger switch 4, the speaker 5 and the light emitter 6 respectively. When the plug 3 is removed from the trigger switch 4, the main control circuit board 1 will trigger the speaker and the light emitter to emit sound and light alarms respectively.

[0029] In non-emergency situations, the pin 3 is in the state of passing through the pin engagement hole and being in contact with the trigger switch. When the pin is inserted, it will press against the trigger switch on the main control circuit board, thus turning the trigger switch off.

[0030] In an emergency, pulling the latch will trigger the switch to turn on the device, which will emit a piercing sound and the lights will flash, serving as a deterrent.

[0031] The chip program on the main control circuit board is set so that the speaker will not sound when the tactile switch is pressed by the latch. If the latch is pulled open, the tactile switch will be triggered because the latch is not pressed, and the speaker will then sound.

[0032] The alarm body has symmetrically connected ball bearings 2 on both sides for engaging the pin, and the top of the pin has recesses on both sides for engaging the ball bearings.

[0033] like Figure 3 As shown, the ball includes a steel shell 9 with one end open, a spring 10 and a steel ball 11 located inside the steel shell. The steel ball 11 is located at the opening of the steel shell, and the diameter of the steel ball is larger than the opening of the steel shell. The steel ball can roll at the opening of the steel shell under the action of the spring and provide an outward pushing force. The steel ball can engage with the recess on the pin.

[0034] The working principle of the ball bearing mechanism: A steel ball and a spring are pressed into a steel shell. The steel ball is pushed out by the spring, and it can roll to reduce friction.

[0035] like Figure 1 As shown, the alarm body includes an upper cover 7 and a bottom shell 8 that are snapped or screwed together. The bottom shell 8 is provided with a horn groove. The horn groove and the upper cover are respectively provided with through holes for sound generation at the positions corresponding to the horn. The upper cover is provided with a light-emitting through hole at the position corresponding to the light emitter.

[0036] The two ball bearings are fixed to the upper cover 7 and the bottom shell 8 respectively. The ball bearings act as a fixing pin, and when the pin is inserted, the ball bearing fits into the recess of the pin. When the pin is pulled out, the ball bearing rubs against the pin. When the pin is inserted back in, the tactile switch is pressed, and the chip program in the main control circuit board will stop the audible and visual alarm.

[0037] Furthermore, the top cover, bottom shell, and pin are made of plastic materials, including ABS, PC, or ABS+PC, but not limited to these materials. They can also be other plastic materials, which are relatively common, environmentally friendly, and low-cost materials.

[0038] The main control circuit board can be a PCB circuit board, which can be enclosed by a top cover, a bottom shell, and a latch. The light emitter can be an LED light. A latch pull ring is provided at the other end of the latch.

[0039] Compared with existing technologies, the advantages of this utility model are as follows: This application applies a ball bearing to an alarm device, using the ball bearing to design a latch function while providing a good tactile feel. The spring force on the ball bearing can provide appropriate insertion and extraction force, and the spring of the ball bearing is adjustable, achieving adjustable latch force and meeting user tactile needs. Simultaneously, the steel ball on the ball bearing rolls and rubs against the plastic shell of the latch, ensuring durability.

[0040] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the specific details described above. The above description is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features of this application.

[0041] The above are merely preferred embodiments of this application and are not intended to limit the scope of this application. Any modifications or equivalent substitutions made within the spirit and principles of this application shall be included within the protection scope of this application.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A personal safety alarm device, characterized in that, The device includes an alarm body and a pin that is plugged into and detached from the alarm body. One end of the alarm body is provided with a pin engagement hole for the pin to be plugged into and detached. The alarm body contains a main control circuit board and a speaker. The main control circuit board has a trigger switch that is connected to the pin at the end near the pin engagement hole. A light is fixedly mounted on the main control circuit board. The main control circuit board is electrically connected to the trigger switch, the speaker, and the light. When the pin is removed from the trigger switch, the main control circuit board will trigger the speaker and the light to emit sound and light alarms, respectively. The alarm body has symmetrically connected ball bearings on both sides for engaging the pin, and the top of the pin has recesses on both sides for engaging the ball bearings.

2. A personal safety alarm device according to claim 1, characterized in that, The ball joint includes a steel shell with one open end and a spring and a steel ball located inside the steel shell. The steel ball is located at the opening of the steel shell, and the diameter of the steel ball is larger than the opening of the steel shell. The steel ball can roll at the opening of the steel shell under the action of the spring and provide an outward pushing force. The steel ball can engage with the recess on the pin.

3. A personal safety alarm device according to claim 1, characterized in that, The alarm body includes an upper cover and a bottom shell that are snapped or screwed together. The bottom shell is provided with a horn groove. The horn groove and the upper cover are respectively provided with through holes for sound generation at the positions corresponding to the horn. The upper cover is provided with a light-emitting through hole at the position corresponding to the light emitter.

4. A personal safety alarm device according to claim 3, characterized in that, The top cover, bottom shell, and pin are made of plastic materials, including ABS, PC, or ABS+PC.

5. A personal safety alarm device according to claim 3, characterized in that, The dial beads are fixed to the upper cover and the bottom shell respectively.

6. A personal safety alarm device according to claim 1, characterized in that, The main control circuit board can be a PCB circuit board.

7. A personal safety alarm device according to claim 1, characterized in that, The light emitter can be an LED lamp.

8. A personal safety alarm device according to claim 1, characterized in that, The other end of the pin is provided with a pin pull ring.

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