Bracelet type near-electricity alarm

Abstract

The utility model discloses a bracelet type near-electricity alarm. The bracelet type near-electricity alarm comprises a wrist strap and an alarm body, the alarm body comprises a shell, a waterproof lens, a PCB (Printed Circuit Board), an induction coil, a buzzer, a vibrator, a battery and a waterproof sound transmission film; the waterproof lens covers the top opening of the shell and is matched with the shell to form an accommodating cavity; the PCB is arranged in the accommodating cavity, and a sound production hole is formed in the side wall of the shell; the waterproof sound transmission film covers the sound production hole; the wrist strap is provided with an installation groove, the alarm body is detachably connected to the installation groove, and the side wall of the installation groove is provided with a through hole matched with the sound production hole in position. The alarm body of the bracelet type near-electricity alarm is internally provided with the waterproof sound-transmitting film, and the waterproof sound-transmitting film covers the opening, located on one side of the accommodating cavity, of the sound-producing hole, so that water is prevented from entering the accommodating cavity from the sound-producing hole, and the alarm body is prevented from being damaged due to the fact that water enters the alarm body. Meanwhile, the sounding holes are formed in the side wall of the shell, and the chance that water drops make contact with the sounding holes can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of proximity electric sensing devices, in particular to a wristband type proximity electric alarm. Background Art

[0002] Due to the rapid development of modern power systems, while bringing convenience to users, it also puts forward higher requirements on the safety of power system maintenance personnel. Operators are prone to touch live objects while working, which may cause electric shock accidents, especially in places with confined spaces. They may touch live objects when their hands move. Near-electricity warning devices can avoid such accidents to the greatest extent. In the prior art, there have been wearable near-electricity sensing devices similar to watches, which can prevent electrical workers from high-voltage electric shock accidents. However, the wearable near-electricity sensing devices of the wristband are relatively light and do not affect the activities of the workers after wearing them. Therefore, it is often easy for workers to forget to take off the near-electricity sensing devices and wash their hands. The existing wearable near-electricity sensing devices of the wristband have a simple structure and poor waterproof ability. They are easy to get into water and cause damage to the internal components. Utility Model Content

[0003] The utility model aims to provide a wristband type proximity electric alarm to solve the problem that the aforementioned wristband wearable proximity electric sensing device has poor waterproof capability.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a wristband type near-electricity alarm, comprising a wristband and an alarm body;

[0006] The alarm body includes a shell, a waterproof lens, a PCB board, an induction coil, a buzzer, a vibrator, a battery and a waterproof sound-permeable membrane; the waterproof lens cover is arranged at the top opening of the shell, and cooperates with the shell to form a receiving cavity; the PCB board is arranged in the receiving cavity, and a field effect transistor is integrated on the PCB board; the induction coil, the buzzer, the vibrator and the battery are respectively arranged in the receiving cavity, and are respectively electrically connected to the PCB board;

[0007] The side wall of the shell is provided with a sound-generating hole connected to the accommodating cavity, and the sound output end of the buzzer faces the sound-generating hole; the waterproof sound-permeable membrane covers the opening of the sound-generating hole located on one side of the accommodating cavity;

[0008] The wristband is provided with a mounting slot, the alarm body is detachably connected to the mounting slot, the side wall of the mounting slot is provided with a through hole adapted to the position of the sound hole, and a drainage cavity is formed between the mounting slot located on one side of the through hole and the outer wall of the alarm body.

[0009] In the wristband type near-electric alarm, the mounting groove is made of rubber, a plurality of fixing protrusions are arranged at intervals on the inner edge of the opening of the mounting groove, and a mounting ring groove is arranged on the side wall of the shell; the fixing protrusions are embedded in the mounting ring groove, so that the alarm body is fixed in the mounting groove.

[0010] In the bracelet-type near-electric alarm, a charging module is also integrated on the PCB board; the charging module is electrically connected to the battery for charging the battery; a charging port is provided on the side wall of the shell, and a charging hole compatible with the charging port is provided on the side wall of the mounting groove, and a waterproof plug is provided on the charging hole, and one end of the waterproof plug is connected to the side wall of the mounting groove.

[0011] In the bracelet-type proximity alarm, the alarm body also includes a display screen; the display screen is electrically connected to the PCB board, and the display screen is arranged below the waterproof lens.

[0012] In the bracelet-type near-electric alarm, the alarm body also includes a warning light, the warning light is electrically connected to the PCB board, and the warning light is arranged below the waterproof lens.

[0013] In the bracelet-type proximity alarm, the through hole is an oblong hole.

[0014] A technical solution in the utility model can have the following beneficial effects:

[0015] The alarm body of the bracelet-type near-electric alarm is provided with a waterproof sound-permeable membrane, which covers the opening of the sound-emitting hole on one side of the accommodating cavity to prevent water from entering the accommodating cavity from the sound-emitting hole, and to prevent the alarm body from being damaged by water. At the same time, the sound-emitting hole is arranged on the side wall of the shell, and the probability of the side wall of the alarm body contacting water is lower than the top surface of the alarm body, which can reduce the chance of water droplets contacting the sound-emitting hole. In addition, a drainage cavity is formed between the installation groove and the outer wall of the alarm body, and the through hole is connected to the drainage cavity. When water enters the installation groove, the water can be discharged through the through hole to prevent water droplets from accumulating in the installation groove for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of one embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a wristband in one embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the alarm body in one embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the alarm body in one embodiment of the utility model;

[0020] In the figure: wristband 100, alarm body 200; mounting slot 110; through hole 111; fixing protrusion 112; charging hole 113; waterproof plug 114; drainage cavity 120; housing 210, waterproof lens 211, PCB board 212, induction coil 213, buzzer 214, vibrator 215, battery 216, waterproof sound-permeable membrane 217; display screen 218; housing 210 ； Warning light 220; Accommodation cavity 230;

[0021] Sound hole 2101; mounting ring groove 2102; charging port 2103; charging module 2121. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0024] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to Figures 1 to 4 The utility model provides a wristband type proximity alarm, comprising a wristband 100 and an alarm body 200;

[0027] The alarm body 200 includes a shell 210, a waterproof lens 211, a PCB board 212, an induction coil 213, a buzzer 214, a vibrator 215, a battery 216 and a waterproof sound-permeable membrane 217; the waterproof lens 211 is covered at the top opening of the shell 210 and cooperates with the shell 210 to form a receiving cavity 230; the PCB board 212 is arranged in the receiving cavity 230, and a field effect transistor is integrated on the PCB board; the induction coil 213, the buzzer 214, the vibrator 215 and the battery 216 are respectively arranged in the receiving cavity 230, and are respectively electrically connected to the PCB board 212;

[0028] The side wall of the housing 210 is provided with a sound hole 2101 communicating with the accommodating chamber 230, and the sound output end of the buzzer 214 faces the sound hole 2101; the waterproof sound-permeable membrane 217 covers the opening of the sound hole 2101 located on one side of the accommodating chamber 230;

[0029] The wristband 100 is provided with a mounting slot 110, and the alarm body 200 is detachably connected to the mounting slot 110. The side wall of the mounting slot 110 is provided with a through hole 111 adapted to the position of the sound hole 2101, and a drainage cavity 120 is formed between the mounting slot 110 located on one side of the through hole 111 and the outer wall of the alarm body 200.

[0030] The principle of the near-electric alarm of the alarm body 200 is that when the induction coil is close to the AC power supply, the magnetic field in the induction coil induces an induced current. This induced current will be received, processed and converted into a monitoring signal. The PCB board 212 will analyze and process the received monitoring signal, extract the 50HZ power frequency signal, eliminate the interference signal through digital filtering, analyze its signal strength, and when it reaches the preset value, send a wireless alarm signal to the receiving end, and the receiving end will alarm after receiving the signal. The receiving end includes electronic components such as a buzzer 214 and a vibrator 215 that send out an alarm.

[0031] The wristband type near-electricity alarm is provided with a wristband 100 and an alarm body 200, which can be worn on the hand of an operator through the wristband 100. When an operator enters an area with electrical hazards, a sound alarm will be issued, and the entire device will vibrate in various ways to alert the operator to pay attention to safety. Since the device body is directly worn on the user, it has direct physical contact with the user or is worn in a conspicuous position on the body, the user can directly hear the sound or feel the vibration, avoiding the disadvantage that the operator is not easy to notice that the device is alarming in a noisy environment.

[0032] In the alarm body 200 of the wristband type near-electric alarm, a waterproof sound-permeable membrane 217 is provided. The waterproof sound-permeable membrane 217 covers the opening of the sound-emitting hole 2101 located on one side of the accommodating chamber 230 to prevent water from entering the accommodating chamber 230 from the sound-emitting hole 2101, and to prevent the alarm body 200 from being damaged by water. At the same time, the sound-emitting hole 2101 is arranged on the side wall of the shell 210, and the probability of the side wall of the alarm body 200 contacting water is lower than the top surface of the alarm body 200, which can reduce the chance of water droplets contacting the sound-emitting hole 2101. In addition, a drainage cavity 120 is formed between the mounting groove 110 and the outer wall of the alarm body 200, and the through hole 111 is connected to the drainage cavity 120. When water enters the mounting groove 110, the water can be discharged through the through hole 111, so as to prevent water droplets from accumulating in the mounting groove 110 for a long time.

[0033] Specifically, the mounting groove 110 is made of rubber, and a plurality of fixing protrusions 112 are spaced apart on the inner edge of the opening of the mounting groove 110 . The side wall of the shell 210 is provided with a mounting ring groove 2102 . The fixing protrusions 112 are embedded in the mounting ring groove 2102 , so that the alarm body 200 is fixed in the mounting groove 110 .

[0034] In a specific embodiment of the utility model, the fixing protrusion 112 at the opening of the installation groove 110 cooperates with the installation ring groove 2102 on the side wall of the shell 210 to achieve a detachable connection. Rubber has a certain elasticity and can be deformed. The above structure is convenient for operators to fix the alarm body 200 in the installation groove 110 or take the alarm body 200 out of the installation groove 110, which is convenient for disassembly and assembly; when the operator finds that the installation groove 110 has water in it, the alarm body 200 can be separated from the installation groove 110, so that the wristband type near-electric alarm can be quickly dried.

[0035] Specifically, a charging module 2121 is also integrated on the PCB board 212; the charging module 2121 is electrically connected to the battery 216 for charging the battery 216; the side wall of the shell 210 is provided with a charging port 2103, and the side wall of the mounting groove 110 is provided with a charging hole 113 adapted to the charging port 2103, and the charging hole 113 is provided with a waterproof plug 114, and one end of the waterproof plug 114 is connected to the side wall of the mounting groove 110.

[0036] With the above structure, when the power is low, the battery 216 is charged through the charging module 2121, and the charging method is used to replace the traditional disposable battery, thereby extending the service life of the wristband type near-electricity alarm.

[0037] Specifically, the alarm body 200 further includes a display screen 218 ; the display screen 218 is electrically connected to the PCB board 212 , and the display screen 218 is disposed below the waterproof lens 211 .

[0038] By adopting the above structure, a display screen 218 is set to display information such as time, battery power or danger warning, and the time information, power information and warning information are visualized, which is convenient for operators to use. The power of battery 216 can be known in time and battery 216 can be charged.

[0039] Optionally, the alarm body 200 further includes a warning light 220, which is electrically connected to the PCB board 212 and is disposed below the waterproof lens 211. The warning light 220 can convert the wireless alarm signal into a light signal, and when a near-electric reaction occurs, the light flashes, thereby prompting the operator to pay attention, thereby avoiding the disadvantage that the operator is not easily aware that the device is alarming in a noisy environment.

[0040] Preferably, the through hole 111 is an oblong hole. Compared with a round hole, water droplets are less likely to form a water film in the oblong hole, thereby preventing the water film from reducing the volume of the sound alarm issued by the buzzer 214 and avoiding the disadvantage that the operator is not easy to notice the sound alarm of the buzzer 214 in a noisy environment.

[0041] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A wristband type proximity alarm, characterized in that: Including wristband and alarm body; The alarm body includes a shell, a waterproof lens, a PCB board, an induction coil, a buzzer, a vibrator, a battery and a waterproof sound-permeable membrane; the waterproof lens cover is arranged at the top opening of the shell, and cooperates with the shell to form a receiving cavity; the PCB board is arranged in the receiving cavity, and a field effect transistor is integrated on the PCB board; the induction coil, the buzzer, the vibrator and the battery are respectively arranged in the receiving cavity, and are respectively electrically connected to the PCB board; The side wall of the shell is provided with a sound-generating hole connected to the accommodating cavity, and the sound output end of the buzzer faces the sound-generating hole; the waterproof sound-permeable membrane covers the opening of the sound-generating hole located on one side of the accommodating cavity; The wristband is provided with a mounting slot, the alarm body is detachably connected to the mounting slot, the side wall of the mounting slot is provided with a through hole adapted to the position of the sound hole, and a drainage cavity is formed between the mounting slot located on one side of the through hole and the outer wall of the alarm body.

2. A wristband type proximity alarm according to claim 1, characterized in that: The installation groove is made of rubber, a plurality of fixing protrusions are arranged at intervals on the inner edge of the opening of the installation groove, and a mounting ring groove is arranged on the side wall of the shell; the fixing protrusions are embedded in the mounting ring groove, so that the alarm body is fixed in the installation groove.

3. A wristband type proximity alarm according to claim 1, characterized in that: A charging module is also integrated on the PCB board; the charging module is electrically connected to the battery for charging the battery; a charging port is provided on the side wall of the shell, a charging hole adapted to the charging port is provided on the side wall of the mounting groove, and a waterproof plug is provided on the charging hole, one end of the waterproof plug is connected to the side wall of the mounting groove.

4. A wristband type proximity alarm according to claim 1, characterized in that: The alarm body also includes a display screen; the display screen is electrically connected to the PCB board, and the display screen is arranged below the waterproof lens.

5. The wristband type proximity alarm according to claim 1, characterized in that: The alarm body also includes a warning light, which is electrically connected to the PCB board and is arranged below the waterproof lens.

6. A wristband type proximity alarm according to claim 1, characterized in that: The through hole is an oblong hole.

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