An alarm device to prevent excessive tilt angle of the human body

Abstract

This invention relates to the field of tilt angle measurement and provides an alarm device to prevent excessive tilt angle of the human body. The device includes: an insulating housing, a power supply module, a tilt angle switch, and an alarm module installed inside the insulating housing; wherein the tilt angle switch and the power supply module are located at the bottom of the insulating housing, and the tilt angle switch is used to monitor the tilt angle of the human body. When the tilt angle is too large, the alarm circuit is activated, causing the alarm module to sound an alarm. The power supply module supplies power to the entire device. The alarm device to prevent excessive tilt angle of the human body provided by this invention can emit an audible and visual alarm when the worker's body is tilted at a large angle, reminding the worker to adjust their posture and preventing accidents such as falls or falls from heights, thereby protecting the worker's life safety.

Description

Technical Field

[0001] This invention relates to the field of tilt warning, and more particularly to an alarm device for preventing excessive tilt angle of the human body. Background Technology

[0002] With the development of production technology and the upgrading of production equipment, the size of production equipment is getting larger and larger. It is often necessary for staff to inspect and maintain production equipment at high positions. Since the internal space of the factory is not convenient to use large mobile equipment for maintenance and repair, this work is generally carried out by staff climbing directly onto the production equipment that needs to be repaired, or by using the ladders and platforms that come with the equipment.

[0003] In actual operation, due to the lack of safety awareness of the staff or the need to use a large tilt angle to support their body in order to maintain specific parts of the equipment, it often happens that the staff cannot control their center of gravity due to the excessive tilt angle and fall from a height, endangering their lives.

[0004] In existing technologies, tilt alarm devices mostly use liquid mercury or accelerometers to measure the tilt angle. For example, patent CN2781476Y, entitled "Automatic Fall Alarm Device," uses a mercury switch to automatically alarm when someone falls or tilts at a large angle. However, mercury is toxic to both humans and the environment. In engineering applications, a liquid mercury leak could cause toxic effects on both humans and the environment, making it unsuitable for daily production. Another example is patent CN102997896A, entitled "A Tilt Alarm Device." This device includes a gravity sensor that detects the angle between the human body and the horizontal direction, and a data processing device responsible for transmitting and converting data. However, this device requires a certain amount of time to detect, transmit, and analyze data, which may lead to delayed alarms, and it is also relatively expensive. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides an alarm device to prevent excessive body tilt angle, which automatically alarms when the worker's body tilts at an excessive angle.

[0006] The alarm device for preventing excessive tilt angle of the human body provided by the present invention includes:

[0007] The tilt angle switch includes an insulating housing, a metal groove, a metal slide, a ball, and a metal plate. The metal groove is installed at the center of the insulating housing, and the angle between the inner wall of the metal groove and the bottom surface of the metal groove is an obtuse angle. Multiple metal slides are connected to the opening of the metal groove. The ball is placed in the metal groove and can roll along the inner wall of the metal groove and the metal slide.

[0008] A first lead wire is connected to the metal groove, and the first lead wire passes through the insulating shell and is electrically connected to one end of the power supply module. The metal slide includes an inclined section that is inclined downward and a horizontal section that is horizontal. The top of the inclined section is connected to the groove opening of the metal groove, the bottom of the inclined section is connected to the horizontal section, and the end of the horizontal section is bent upward to form a blocking part. The adjacent sides of adjacent metal slides intersect at the groove opening of the metal groove. A metal sheet is installed on the inner wall of the insulating shell, and the metal sheet is provided with multiple conductive metal protrusions that correspond one-to-one with the metal slides. Each conductive metal protrusion is located directly below the corresponding horizontal section of the metal slide. A second lead wire is connected to the metal sheet, and the second lead wire passes through the insulating shell and is electrically connected to one end of the alarm module. The other end of the alarm module is electrically connected to the other end of the power supply module.

[0009] Furthermore, the alarm module includes a buzzer.

[0010] Furthermore, the alarm module also includes an alarm indicator light, which is mounted on the insulating housing.

[0011] Furthermore, the power supply module includes a power supply base and a battery placed on the power supply base.

[0012] Furthermore, the insulating shell is cylindrical.

[0013] Furthermore, the battery is a rechargeable battery, the power supply base has a built-in charging circuit, and the power supply base is also equipped with a charging port.

[0014] Furthermore, the angle between the inner wall of the metal groove and the bottom surface of the metal groove is between 120° and 150°.

[0015] Furthermore, the power supply module and the tilt angle switch are separated by a partition inside the insulating housing.

[0016] Furthermore, an insulator is installed between two adjacent metal tracks.

[0017] Furthermore, the bottom of the insulator is fixed to the bottom of the insulating outer shell, and the top of the insulator is attached to the top of the insulating outer shell.

[0018] The alarm device for preventing excessive tilt angle of the human body provided by the present invention has at least the following beneficial effects:

[0019] The alarm device for preventing excessive body tilt angle includes a tilt angle switch and an alarm module. The tilt angle switch comprises a metal groove, metal rails, a ball, and a metal plate. Multiple metal rails are connected to the groove opening, and a first lead wire extends from the groove. The tilt angle switch is electrically connected to a power supply module via this first lead wire. Adjacent sides of adjacent metal rails intersect at the opening of the metal groove. The metal plate is mounted on the inner wall of an insulating housing, and a second lead wire is connected to the plate. This second lead wire passes through the insulating housing and is electrically connected to one end of the alarm module. The other end of the alarm module is electrically connected to the other end of the power supply module. The device is used to prevent excessive body tilt angle. In the normally upright position, the ball is located at the bottom center of the metal groove. When the human body tilts at an excessive angle, the ball slides out from the bottom of the metal groove through the metal track, presses against the metal track, and makes the metal track contact with the conductive metal protrusion, thus connecting the alarm circuit and realizing the alarm function. Since there is no need for sensing acceleration and transmitting data, the reaction time of the alarm device is shortened. The track in different directions can realize the alarm for different tilt angles of the human body. The alarm sensitivity is also higher when the tilt angle is too large. At the same time, the structural components of this device are made of common metal conductors, which are easier to manufacture and simpler and safer in daily use and storage.

[0020] The alarm device for preventing excessive tilt angle of the human body also includes a charging circuit and interface for battery charging. Users can use rechargeable batteries to power the device, avoiding the use of disposable dry batteries and making it more environmentally friendly. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A top-view cross-sectional diagram of an alarm device designed to prevent excessive tilt angle of the human body;

[0023] Figure 2 This is a schematic cross-sectional view of the tilt angle switch.

[0024] 1-Alarm indicator light, 2-Buzzer, 3-Insulating housing, 4-Second lead wire, 5-Insulating housing, 6-Metal sheet, 7-Metal slide, 8-Insulator, 9-Ball, 10-Charging hole, 11-Battery, 12-First lead wire, 13-Metal groove, 14-Conductive metal protrusion. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0026] In one embodiment of the present invention, such as Figure 1-2 As shown, the alarm device for preventing excessive tilt angle of the human body provided by the present invention includes an insulating housing 3, a tilt angle switch installed inside the insulating housing 3, an alarm module, and a power supply module, wherein:

[0027] The tilt angle switch includes an insulating housing 5, a metal groove 13, a metal slide 7, a ball 9, and a metal sheet 6.

[0028] A metal groove 13 is installed at the center of the interior of the insulating housing 5. The angle between the inner wall of the metal groove 13 and the bottom surface of the metal groove 13 is obtuse. Multiple metal slides 7 are connected to the opening of the metal groove 13. The number of metal slides 7 can be increased or decreased according to the size of the device and the requirements of the measurement direction during use. A first lead wire 12 is also connected to the metal groove. The first lead wire 12 passes through the insulating housing 5 and is electrically connected to one end of the power supply module. A ball 9 is placed in the metal groove 13 and can roll along the inner wall of the metal groove 13 and the metal slides 7.

[0029] The metal slide 7 includes an inclined section that is inclined downward and a horizontal section that is horizontal. The top of the inclined section is connected to the groove of the metal groove 13, the bottom of the inclined section is connected to the horizontal section, and the end of the horizontal section is bent upward to form a blocking part, so as to prevent the ball 9 from flying out of the metal slide when it rolls along the metal slide 7, and to stop the ball 9 from rolling at the position of the horizontal section of the metal slide.

[0030] The adjacent sides of the adjacent metal slides 7 intersect at the opening of the metal groove 13, thereby ensuring that when the human body tilts, the ball can slide smoothly along the corresponding metal slide 7 without jamming, thus enhancing the sensitivity of the tilt angle switch.

[0031] The metal sheet 6 is mounted on the inner wall of the insulating housing 5, and the metal sheet 6 has multiple conductive metal protrusions 14 that correspond one-to-one with the metal slides 7. Each conductive metal protrusion 14 is located directly below the horizontal section of the corresponding metal slide 7. The metal sheet 6 can be an annular metal sheet, with its outer sidewall fitting against the inner wall of the insulating housing, and its inner sidewall having multiple conductive metal protrusions 14.

[0032] A second lead wire 4 is connected to the metal sheet 6. The second lead wire 4 passes through the insulating shell 5 and is electrically connected to one end of the alarm module. The other end of the alarm module is electrically connected to the other end of the power supply module.

[0033] In actual use, the alarm device for preventing excessive tilt angle of the human body in this embodiment is worn by the staff. When the staff is in a normal upright position, the ball 9 in the alarm device is located in the metal groove 13, and the metal slide 7 is not in contact with the conductive metal protrusion 14. That is, the tilt angle switch is in the open state, and the alarm module is not powered on and is in the closed state. When the staff tilts their body during the operation, the alarm device for preventing excessive tilt angle of the human body worn by the staff will also tilt. When the staff tilts their body more, the ball 9 in the alarm device will roll along the side wall of the metal groove 13 from the metal groove 13 to a metal slide 7 (the specific metal slide is related to the direction of the human body tilt), and roll along the metal slide 7 until it is blocked by the blocking part of the metal slide 7 and stops at the horizontal section of the metal slide 7. Under the action of gravity, the horizontal section of the metal slide 7 will contact the conductive metal protrusion 14 directly below it, thereby closing the tilt angle switch and powering on the alarm module to sound an alarm.

[0034] Specifically, this invention does not limit the shape or material of the insulating outer shell 3 and the insulating housing 5. For example, the shape of the insulating outer shell 3 and the insulating housing 5 can be set as a cylinder, a cube, or a cuboid, etc. Furthermore, the distance between the horizontal section of the metal slide 7 and the metal sheet 6, as well as the size, material, and mass of the rolling ball, can be set by those skilled in the art according to actual needs, and this invention does not impose any restrictions on these aspects. It should be understood that, during setup, the size of the metal slide 7 and the rolling ball 9 should match so that the rolling ball 9 can roll freely on the metal slide 7.

[0035] The alarm device for preventing excessive tilt angle of the human body provided in this embodiment is worn by workers during construction. When the human body is in a normal upright position, the rolling ball 9 is located at the bottom center of the metal groove 13. When the human body tilts at an excessive angle, the rolling ball 9 slides out from the bottom of the metal groove 13 through the metal slide 7, presses the metal slide 7 and makes the metal slide 7 contact the conductive metal protrusion 14 on the metal plate 6, connecting the alarm circuit and realizing the alarm function. Since there is no need to sense acceleration and transmit data, the reaction time of the alarm device is shortened. The slides in different directions can realize the alarm for different tilt angles of the human body. The sensitivity of the alarm is also higher when the tilt angle is too large. At the same time, the structural components of this device are made of common metal conductors, which are easier to manufacture, have lower costs, and are simpler and safer in daily use and storage.

[0036] In another embodiment of the invention, such as Figure 1 As shown, the alarm module includes a buzzer 2, which provides an audible alarm to effectively alert staff to excessive tilt angles and prevent falls. The buzzer in this invention can be any existing buzzer product; this invention does not limit its use.

[0037] In another embodiment of the invention, such as Figure 1 The alarm module also includes an alarm indicator light 1, which is connected in parallel with a buzzer 2. The alarm indicator light 1 is mounted on the insulating housing 3. When the worker tilts at too large an angle, it can flash an alarm to remind the worker that the tilt angle is too large and prevent the worker from falling.

[0038] In another embodiment of the present invention, the power supply module includes a power supply base (not shown in the figure) and a battery 11 placed on the power supply base. The alarm device for preventing excessive tilt angle of the human body is powered by a battery, which is convenient. Furthermore, the battery 11 is a rechargeable battery, the power supply base has a built-in charging circuit, and the power supply base is also provided with a charging port 10. Using a rechargeable battery to power the device allows for reuse. When the battery is depleted, the user does not need to replace it; they only need to recharge it with a charger for reuse. This saves on usage costs and reduces the generation of waste batteries, thus having a certain environmental protection effect.

[0039] Specifically, the charging circuit mentioned in this embodiment can be any commonly used charging circuit in the prior art, and the present invention does not impose any restrictions on it.

[0040] Furthermore, the power supply module and the tilt angle switch are separated by a partition inside the insulating housing.

[0041] In another embodiment of the present invention, the angle between the inner sidewall of the metal groove 13 and the bottom surface of the metal groove 13 is between 120° and 150°, so that the rolling ball 9 can easily slide out of the bottom of the metal groove 13 to realize the alarm function. Furthermore, the angle between the inner sidewall of the metal groove 13 and the bottom surface of the metal groove 13 can be adjusted by the operator according to the usage scenario of the device and the angle at which the device is to trigger an alarm, so as to ensure the accuracy of the alarm.

[0042] In another embodiment of the present invention, an insulator 8 is provided between two adjacent metal slides. Furthermore, the bottom of the insulator 8 is fixed to the bottom of the insulating outer shell 3, and the top of the insulator 8 is in contact with the top of the insulating outer shell 3.

[0043] In this embodiment, the purpose of the insulator 8 is to ensure that the ball 9 slides downwards along the metal slide 7 after sliding out of the metal groove 13, preventing the ball from flying out from the side of the metal slide 7 (when the cross-section of the metal slide is U-shaped). This avoids the situation where the ball 9 fails to alarm after sliding out of the metal groove 13, thus improving the reliability of the device. Furthermore, the number of metal slides 7 can be increased or decreased according to the size of the device and the requirements for the monitoring direction during use. When the number of metal slides changes, the shape of the insulator can be changed accordingly to improve the accuracy and reliability of the device alarm. However, it should be ensured that the included angle formed by the intersection of adjacent sides of two adjacent metal slides is less than 90°.

[0044] Of course, in another embodiment, the metal slide can be directly set as a circular tube with no opening in the tube wall or an opening smaller than the diameter of the rolling ball, or when the cross-section of the metal slide is set as U-shaped, an anti-flying net or the like can be set at the top to ensure that the rolling ball rolls down the metal slide to the horizontal section of the metal slide, presses the horizontal section into contact with the conductive metal protrusion on the metal sheet, and thus realizes the alarm.

[0045] The alarm device for preventing excessive tilt angle provided by this invention, when a worker's body tilts at a large angle, causes a rolling ball to slide out from the bottom of the metal groove under the influence of gravity, slide down the metal track, and reach the horizontal section of the metal track. It then presses the metal track into contact with a conductive metal protrusion, thereby activating the entire alarm circuit and quickly triggering the alarm. This promptly alerts the worker to their condition and emphasizes work safety, reducing the possibility of workplace accidents and ensuring worker safety. Because it eliminates the need for acceleration sensing and data transmission, the alarm device's reaction time is shortened. The device incorporates multiple tracks in different directions, enabling alarms to be triggered at various tilt angles, with higher sensitivity for excessive tilt angles. Furthermore, the device's structural components are made of common metal conductors, making it easier to manufacture, lower in cost, and simpler and safer to use and store.

[0046] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the nature and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention.

Claims

1. An alarm device for preventing excessive tilt angle of the human body, characterized in that, The alarm device is applied to workers during work, and comprises an insulating shell, a power supply module, an inclination angle switch and an alarm module. The inclination angle switch comprises an insulating shell, a metal groove, a metal slide, a rolling ball and a metal sheet. The metal groove is installed at a central position inside the insulating shell, and an included angle between an inner side wall of the metal groove and a bottom surface of the metal groove is obtuse. The metal groove is further connected with a first lead-out wire, and the first lead-out wire is electrically connected with one end of the power supply module through the insulating shell. The metal slide comprises an inclined section and a horizontal section, the inclined section is downwardly inclined, the inclined section is connected with the groove of the metal groove, the bottom end of the inclined section is connected with the horizontal section, and the horizontal section is upwardly bent at the end to form a blocking part. Adjacent edges of adjacent metal slides intersect at the groove of the metal groove. The metal sheet is installed on the inner wall of the insulating shell, and a plurality of conductive metal protrusions corresponding to the metal slides are arranged on the metal sheet.

2. The alarm device for preventing a human from tilting at an excessive angle according to claim 1, wherein The alarm module comprises a buzzer.

3. The alarm device for preventing a human from tilting at an excessive angle according to claim 2, wherein The alarm module further comprises an alarm indicator light arranged on the insulating shell.

4. The alarm device for preventing a human from tilting at an excessive angle according to claim 1, wherein The power supply module comprises a power supply base and a battery arranged on the power supply base.

5. The alarm device for preventing a human from tilting at an excessive angle according to claim 1, wherein The insulating shell is cylindrical.

6. The alarm device for preventing a human from tilting at an excessive angle according to claim 4, wherein The battery is a rechargeable battery, the power supply base is internally provided with a charging circuit, and the power supply base is further provided with a charging hole.

7. The alarm device for preventing a human from tilting at an excessive angle according to claim 1, wherein The included angle between the inner side wall of the metal groove and the bottom surface of the metal groove ranges from 120° to 150°.

8. The alarm device for preventing a human from tilting at an excessive angle according to claim 1, wherein The power supply module and the inclination angle switch are separated by a partition inside the insulating shell.

9. The alarm device for preventing a human from tilting at an excessive angle according to claim 1, wherein An insulator is arranged between the two adjacent metal slides.

10. The alarm device for preventing a human from tilting at an excessive angle according to claim 9, wherein The bottom of the insulator is fixed to the bottom of the insulating shell, and the top of the insulator is attached to the top of the insulating shell.

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