Alarm device

Abstract

The utility model relates to the technical field of alarm devices, in particular to an alarm device, which comprises a box body. The alarm trigger button is arranged on the box body; the protective cover is arranged on the periphery of the alarm trigger button and used for protecting the alarm trigger button; and the audible and visual alarm is arranged above the protective cover and is electrically connected with the alarm trigger button through a wire, and the audible and visual alarm emits sound and light when being triggered. The alarm trigger button can be protected through the protective cover, the situation that the alarm trigger button is mistakenly touched for the alarm among students is avoided, meanwhile, when the alarm trigger button needs to be pressed down, the protective cover moves upwards through operation of the adjusting device, the alarm trigger button is exposed out, the alarm trigger button can be rapidly pressed down, and therefore the students can conveniently and rapidly take out the alarm. On the premise that the alarm trigger button can be pressed quickly, the alarm trigger button is protected, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of alarm devices, in particular to an alarm device. Background Art

[0002] An alarm device refers to an information display device that indicates a malfunction, accident or dangerous situation. School safety is a very important part of the safety work of the whole society. It is directly related to whether young students can grow up safely and healthily, and is related to the happiness and peace of thousands of families and social stability. For the safety of students, alarm devices will be installed on campus.

[0003] However, when the existing alarm device is in use, the user performs the alarm operation by pressing the alarm trigger button. However, since the alarm trigger buttons are mostly directly set outside and there are many students on campus, it is easy for the alarm trigger button to be accidentally pressed due to fighting between students, resulting in a false alarm. The alarm trigger button cannot be protected while ensuring that it can be pressed quickly, which is inconvenient to use. Utility Model Content

[0004] The utility model aims to solve the problem that the existing alarm device cannot protect the alarm trigger button under the premise of ensuring that the alarm trigger button can be pressed quickly, which causes inconvenience in use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An alarm device, comprising:

[0007] Box;

[0008] An alarm trigger button is arranged on the box body;

[0009] A protective cover, arranged at the periphery of the alarm trigger button, for protecting the alarm trigger button;

[0010] An audible and visual alarm is arranged above the protective cover and is electrically connected to the alarm trigger button through an electric wire. When the audible and visual alarm is triggered, it emits sound and light;

[0011] The adjusting device is arranged at the lower part of the box body and is fixedly connected to the lower edge of the protective cover, and is used to push the protective cover to move vertically.

[0012] Preferably, the adjusting device comprises:

[0013] Spur gears;

[0014] A rotating plate, one end of which is fixedly connected to the axis of the spur gear and the other end of which is provided with a first sliding groove;

[0015] A connecting member, which passes through a corresponding position of the box body and is slidably connected to the box body, the connecting member is composed of a first plate, a second plate and a first cylindrical pin, the top end of the first plate is fixedly connected to the protective cover, the bottom end is fixedly connected to an end of the second plate away from the rotating plate, the end of the second plate close to the rotating plate is fixedly connected to the first cylindrical pin, the first cylindrical pin is arranged in the first slide groove, and is slidably connected to the rotating plate through the first slide groove;

[0016] A rack meshingly connected with the spur gear;

[0017] A first transverse plate is disposed below the rack, and one end of the first transverse plate is fixedly connected to the bottom end of the rack, and the first transverse plate passes through a corresponding position of the box body and is slidably connected to the box body;

[0018] A pedal, disposed at one end of the first transverse plate away from the rack and fixedly connected to the first transverse plate;

[0019] The second transverse plate is arranged above the first transverse plate in parallel, and a spring is arranged between the second transverse plate and the first transverse plate.

[0020] Preferably, it further comprises: a winding device; the winding device is arranged on one side of the upper part of the box body close to the protective cover and is in contact with the electric wire, so as to be used for winding the electric wire.

[0021] Preferably, the winding device comprises:

[0022] The turntable is composed of a rotating shaft and two groups of discs, the two ends of the rotating shaft pass through the corresponding positions of the box, and a torsion spring is arranged between the rotating shaft and the box, and the two groups of discs are arranged coaxially with the rotating shaft;

[0023] A first winding wheel is disposed between the two groups of the discs and is coaxially disposed with the rotating shaft, and a surface of the first winding wheel is in contact with the electric wire;

[0024] The second winding wheel is arranged between the two groups of the discs and is located at the edge of the rotating disc. The surface of the second winding wheel is in contact with the electric wire.

[0025] Preferably, it further comprises: a first guide wheel; the first guide wheel is arranged below the turntable and fits with the electric wire, so as to control the direction of the electric wire.

[0026] Preferably, it also includes: a second guide wheel; the second guide wheel is arranged above the turntable and fits the electric wire, the second guide wheel and the first guide wheel are on the same vertical line, and are used to control the direction of the electric wire.

[0027] Preferably, it further comprises: a base; the base is arranged below the box body and fixedly connected to the box body, so as to increase the contact area between the box body and the ground.

[0028] Preferably, it further comprises: a limiting device; the limiting device is arranged on a side of the interior of the box body away from the protective cover, and is used to limit the protective cover to the highest position.

[0029] Preferably, the limiting device comprises:

[0030] A bevel gear set, consisting of a first bevel gear and a second bevel gear, wherein an edge of the first bevel gear is meshedly connected with the second bevel gear;

[0031] A hand wheel, fixedly connected to the axis of the first bevel gear, and used to drive the first bevel gear to rotate;

[0032] A screw rod is fixedly connected to the axis of the second bevel gear and rotates along with the second bevel gear;

[0033] A connecting frame, threadedly connected to the screw rod;

[0034] An inclined plate is arranged above the connecting frame and fixedly connected to the connecting frame, and a second sliding groove is provided on the surface of the inclined plate;

[0035] A latch pin, the surface of which is disposed on a second cylindrical pin, the second cylindrical pin is disposed in the second slide groove, and is slidably connected to the inclined plate through the second slide groove;

[0036] A limit plate, wherein one end of the limit plate close to the sound and light alarm is fixedly connected to the protective cover, and one end of the limit plate away from the sound and light alarm is provided with a notch, and after the limit plate moves to the uppermost position, the notch and the latch are in the same horizontal line.

[0037] Preferably, a sliding block is provided at one end of the latch pin close to the second cylindrical pin, and the top end of the sliding block is slidably connected to the box body via a sliding groove provided above the inner wall of the box body.

[0038] The beneficial effects proposed by the utility model are: the alarm trigger button can be protected by the protective cover to prevent the alarm trigger button from being accidentally touched due to a fight between students; at the same time, when the alarm trigger button needs to be pressed, the operation of the adjusting device can be utilized to move the protective cover upwards to expose the alarm trigger button, so that the alarm trigger button can be quickly pressed, thereby ensuring that the alarm trigger button can be quickly pressed while protecting the alarm trigger button for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the utility model;

[0040] Figure 2 for Figure 1 Schematic diagram of the main plan view of the internal connection structure;

[0041] Figure 3 for Figure 2 Schematic diagram of the connection structure at A in the middle;

[0042] Figure 4 for Figure 2 Schematic diagram of the connection structure at B in the middle.

[0043] In the figure: 1, box body, 2, alarm trigger button, 3, protective cover, 4, sound and light alarm, 5, wires, 6, luminous strip, 7, base, 8, spur gear, 9, rotating plate, 10, connecting piece, 11, rack, 12, first horizontal plate, 13, pedal, 14, turntable, 15, first winding wheel, 16, second winding wheel, 17, first guide wheel, 18, second guide wheel, 19, limit plate, 20, bevel gear set, 21, hand wheel, 22, screw, 23, connecting frame, 24, inclined plate, 25, latch, 26, second horizontal plate. DETAILED DESCRIPTION

[0044] The utility model is further described below in conjunction with the accompanying drawings:

[0045] This embodiment:

[0046] See also Figure 1-4 In this embodiment: an alarm device includes: a box body 1, an alarm trigger button 2, a protective cover 3, an audible and visual alarm 4 and an adjusting device.

[0047] Among them, the alarm trigger button 2 is arranged on the box body 1; the protective cover 3 is arranged on the periphery of the alarm trigger button 2, and is used to protect the alarm trigger button 2; the sound and light alarm 4 is arranged above the protective cover 3, and is electrically connected to the alarm trigger button 2 through the wire 5. The sound and light alarm 4 is triggered by pressing the alarm trigger button 2, and the sound and light alarm 4 emits sound and light when triggered; the adjusting device is arranged at the lower part of the interior of the box body 1, and is fixedly connected to the lower edge of the protective cover 3, and is used to push the protective cover 3 to move vertically. When the alarm trigger button 2 needs to be pressed, the protective cover 3 is moved upward by the adjusting device, so that the alarm trigger button 2 leaks out. When the alarm trigger button 2 does not need to be pressed, the protective cover 3 will always protect the alarm trigger button 2.

[0048] In this embodiment, Figure 2 As shown, the adjusting device includes: a spur gear 8, a rotating plate 9, a connecting member 10, a rack 11, a first transverse plate 12, a pedal 13 and a second transverse plate 26.

[0049] Specifically, one end of the rotating plate 9 is fixedly connected to the axis of the spur gear 8, and the other end is provided with a first slide groove. When the spur gear 8 rotates, the rotating plate 9 will be driven to rotate synchronously; the connecting member 10 passes through the corresponding position of the box body 1 and is slidably connected to the box body 1. The connecting member 10 is composed of a first plate, a second plate and a first cylindrical pin. The top of the first plate is fixedly connected to the protective cover 3, and the bottom end is fixedly connected to the end of the second plate away from the rotating plate 9. The end of the second plate close to the rotating plate 9 is fixedly connected to the first cylindrical pin. The first cylindrical pin is set in the first slide groove and is slidably connected to the rotating plate 9 through the first slide groove. When the rotating plate 9 rotates, the sliding between the first slide groove and the first cylindrical pin will cause the connecting member 10 to move vertically; the rack 11 is meshed and connected with the spur gear 8. When the rack 11 moves downward, the spur gear 8 will rotate counterclockwise; the first cross plate 12 is arranged below the rack 11, and one end of the first cross plate 12 is fixedly connected to the bottom end of the rack 11, and the first cross plate 12 drives the rack 11 to move vertically, and the first cross plate 12 passes through the corresponding position of the box body 1 and is slidably connected to the box body 1; the pedal 13 is arranged at one end of the first cross plate 12 away from the rack 11, and is fixedly connected to the first cross plate 12, and the pedal 13 drives the first cross plate 12 to move; the second cross plate 26 is arranged parallel to the top of the first cross plate 12, and a spring is arranged between the second cross plate 26 and the first cross plate 12, and when the first cross plate 12 moves downward, the spring will be stretched.

[0050] When it is necessary to press the alarm trigger button 2, the user steps on the pedal 13 downward with his foot, and the pedal 13 drives the first horizontal plate 12 to move. The first horizontal plate 12 and the second horizontal plate 26 work together to stretch the spring, and at the same time drive the rack 11 to move downward, and the rack 11 causes the spur gear 8 to rotate counterclockwise, and the spur gear 8 drives the rotating plate 9 to rotate synchronously. The rotating plate 9 slides between the first slide groove and the first cylindrical pin to make the connecting member 10 move vertically upward, and the connecting member 10 drives the protective cover 3 to move, so that the alarm trigger button 2 is exposed and pressed, which is convenient for triggering. At the same time, the alarm trigger button 2 will not be accidentally touched due to fighting between students, which is convenient for use.

[0051] After the alarm device is installed, there will be some excess wires, which will accumulate in the box 1 and hinder the remaining structures, making it impossible to reel in the excess wires.

[0052] In order to solve the above problem, as an implementation of this embodiment, the alarm device also includes: a winding device; the winding device is arranged on the upper side of the box body 1 close to the protective cover 3, and is in contact with the wire 5, and is used to wind up the wire 5.

[0053] In this embodiment, Figure 2 and 4 As shown, the winding device includes: a turntable 14 , a first winding wheel 15 and a second winding wheel 16 .

[0054] In this embodiment, the turntable 14 is composed of a rotating shaft and two groups of discs. Both ends of the rotating shaft pass through the corresponding positions of the box body 1, and a torsion spring is arranged between the rotating shaft and the box body 1. When the turntable 14 rotates counterclockwise, the torsion spring will be stretched, and the two groups of discs are coaxially arranged with the rotating shaft; the first winding wheel 15 is arranged between the two groups of discs and coaxially arranged with the rotating shaft. The turntable 14 can drive the first winding wheel 15 to rotate synchronously, and the surface of the first winding wheel 15 is in contact with the electric wire 5; the second winding wheel 16 is arranged between the two groups of discs and is located at the edge of the turntable 14. When the turntable 14 rotates, the second winding wheel 16 will revolve around the axis of the turntable 14 as the center, and the surface of the second winding wheel 16 is in contact with the electric wire 5.

[0055] After the installation is completed, first rotate the turntable 14 slightly counterclockwise to stretch the torsion spring. At this time, pass the wire 5 through the turntable 14, and make the first winding wheel 15 and the second winding wheel 16 located on both sides of the wire 5. At this time, release the turntable 14, and the torsion spring rebounds, so that the turntable 14 rotates clockwise, and utilizes the limit of the first winding wheel 15 and the second winding wheel 16 to wind up the excess wire 5.

[0056] The alarm device further includes: a first guide wheel 17 ; the first guide wheel 17 is disposed below the turntable 14 and is in contact with the wire 5 , and is used to control the direction of the wire 5 .

[0057] The alarm device further includes: a second guide wheel 18 ; the second guide wheel 18 is disposed above the turntable 14 and fits the wire 5 , and the second guide wheel 18 and the first guide wheel 17 are on the same vertical line for controlling the direction of the wire 5 .

[0058] The alarm device further comprises: a base 7; the base 7 is arranged below the box body 1 and is fixedly connected to the box body 1, and is used to increase the contact area between the box body 1 and the ground, thereby making the box body 1 more stable.

[0059] When the alarm trigger button 2 needs to be repaired, the user needs to step on the pedal 13 all the time, and cannot fix the protective cover 3 at the top during the repair process, which is inconvenient to use.

[0060] In order to solve the above problem, as an implementation of this embodiment, the alarm device also includes: a limiting device; the limiting device is arranged on a side of the inside of the box body 1 away from the protective cover 3, and is used to limit the protective cover 3 to the highest position.

[0061] In this embodiment, Figure 2 and 3 As shown, the limiting device includes: a bevel gear set 20, a hand wheel 21, a screw rod 22, a connecting frame 23, a ramp plate 24, a latch pin 25 and a limiting plate 19.

[0062] The bevel gear set 20 is composed of a first bevel gear and a second bevel gear. The edge of the first bevel gear is meshed with the second bevel gear. The bevel gear set 20 is used to change the transmission direction. The hand wheel 21 is fixedly connected to the axis of the first bevel gear and is used to drive the first bevel gear to rotate. The screw rod 22 is fixedly connected to the axis of the second bevel gear and rotates with the second bevel gear. The connecting frame 23 is threadedly connected to the screw rod 22. When the screw rod 22 rotates, the connecting frame 23 moves vertically. The inclined plate 24 is arranged above the connecting frame 23 and is fixedly connected to the connecting frame 23. The connecting frame 23 can drive The inclined plate 24 moves vertically, and a second slide groove is provided on the surface of the inclined plate 24; the surface of the latch 25 is set on the second cylindrical pin, and the second cylindrical pin is set in the second slide groove, and is slidably connected to the inclined plate 24 through the second slide groove. When the inclined plate 24 moves vertically, it will slide between the second slide groove and the second cylindrical pin, so that the latch 25 moves horizontally; the end of the limit plate 19 close to the sound and light alarm 4 is fixedly connected to the protective cover 3, and the end of the limit plate 19 away from the sound and light alarm 4 is provided with a notch, and after the limit plate 19 moves to the top, the notch and the latch 25 are on the same horizontal line.

[0063] After the protective cover 3 moves to the highest position, the notch on the limit plate 19 and the latch 25 are at the same horizontal line, and the user rotates the hand wheel 21, and the hand wheel 21 is transmitted by the bevel gear set 20 to change direction, thereby rotating the screw rod 22, and the screw rod 22 causes the connecting frame 23 to move vertically upward, and the connecting frame 23 drives the inclined plate 24 to move, and the inclined plate 24 will slide between the second slide groove and the second cylindrical pin, so that the latch 25 moves toward the direction of the limit plate 19, so that the latch 25 is inserted into the notch, and the limit plate 19 is fixed at a high place, and then the protective cover 3 is fixed at a high place, which is convenient for use.

[0064] A slider is provided at one end of the latch pin 25 close to the second cylindrical pin, and the top end of the slider is slidably connected to the box body 1 through a slide groove provided on the upper inner wall of the box body 1 .

[0065] Working principle:

[0066] When the alarm device is in use, the user installs the alarm trigger button 2 and the sound and light alarm 4 on the box body 1, and connects them with the wire 5, and at the same time rotates the turntable 14 slightly counterclockwise to stretch the torsion spring. At this time, the wire 5 passes through the turntable 14, and the first winding wheel 15 and the second winding wheel 16 are located on both sides of the wire 5. At this time, the turntable 14 is released, the torsion spring rebounds, so that the turntable 14 rotates clockwise, and the first winding wheel 15 and the second winding wheel 16 are used to limit the excess wire 5. When it is necessary to press the alarm trigger button 2, the user steps on the pedal 13 downward with his foot, and the pedal 13 drives the first cross plate 12 to move. The first cross plate 12 and the second cross plate 26 work together to stretch the spring, and at the same time drive the rack 11 to move downward, and the rack 11 causes the spur gear 8 to rotate counterclockwise, and the spur gear 8 drives the rotating plate 9 to rotate synchronously, and the rotating plate 9 is connected to the first slide groove and the second slide groove through the first slide groove. The sliding between the cylindrical pins causes the connecting member 10 to move vertically upward, and the connecting member 10 drives the protective cover 3 to move, so that the alarm trigger button 2 leaks out and is pressed, which is convenient for triggering. At the same time, the alarm trigger button 2 will not be accidentally touched due to the fight between students, which is convenient for use. When performing maintenance, after the protective cover 3 moves to the highest point, the notch on the limit plate 19 and the latch 25 are at the same horizontal line. The user rotates the hand wheel 21, and the hand wheel 21 is transmitted through the direction change of the bevel gear set 20, so that the screw 22 rotates, and the screw 22 causes the connecting frame 23 to move vertically upward, and the connecting frame 23 drives the inclined plate 24 to move. The inclined plate 24 will slide between the second slide groove and the second cylindrical pin, so that the latch 25 moves toward the direction of the limit plate 19, so that the latch 25 is inserted into the notch, and the limit plate 19 is fixed at a high place, and then the protective cover 3 is fixed at a high place, which is convenient for use and completes the use of this device.

[0067] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An alarm device, characterized in that: include: Box body (1); An alarm trigger button (2) is arranged on the box (1); A protective cover (3) is arranged on the periphery of the alarm trigger button (2) and is used to protect the alarm trigger button (2); An audible and visual alarm (4) is arranged above the protective cover (3) and is electrically connected to the alarm trigger button (2) via an electric wire (5). When the audible and visual alarm (4) is triggered, it emits sound and light; The adjusting device is arranged at the lower part of the box body (1) and is fixedly connected to the lower edge of the protective cover (3) and is used to push the protective cover (3) to move vertically.

2. The alarm device according to claim 1, characterized in that: The regulating device comprises: Spur gear (8); A rotating plate (9), one end of which is fixedly connected to the axis of the spur gear (8), and the other end of which is provided with a first sliding groove; A connecting member (10) passes through a corresponding position of the box body (1) and is slidably connected to the box body (1), the connecting member (10) being composed of a first plate, a second plate and a first cylindrical pin, the top end of the first plate being fixedly connected to the protective cover (3), the bottom end being fixedly connected to an end of the second plate away from the rotating plate (9), the end of the second plate close to the rotating plate (9) being fixedly connected to the first cylindrical pin, the first cylindrical pin being arranged in the first sliding groove and being slidably connected to the rotating plate (9) through the first sliding groove; A rack (11) meshingly connected with the spur gear (8); A first transverse plate (12) is arranged below the rack (11), and one end of the first transverse plate (12) is fixedly connected to the bottom end of the rack (11); the first transverse plate (12) passes through a corresponding position of the box body (1) and is slidably connected to the box body (1); A pedal (13) is arranged at one end of the first transverse plate (12) away from the rack (11) and is fixedly connected to the first transverse plate (12); The second transverse plate (26) is arranged parallel to and above the first transverse plate (12), and a spring is arranged between the second transverse plate (26) and the first transverse plate (12).

3. The alarm device according to claim 1, characterized in that: Also includes: A winding device; the winding device is arranged on one side of the upper part of the box body (1) close to the protective cover (3) and is in contact with the electric wire (5) for winding the electric wire (5).

4. The alarm device according to claim 3, characterized in that: The winding device comprises: The rotating disk (14) is composed of a rotating shaft and two groups of circular disks, the two ends of the rotating shaft pass through corresponding positions of the box (1), a torsion spring is arranged between the rotating shaft and the box (1), and the two groups of circular disks are arranged coaxially with the rotating shaft; A first winding wheel (15) is arranged between the two groups of the discs and is coaxially arranged with the rotating shaft, and the surface of the first winding wheel (15) is in contact with the electric wire (5); The second winding wheel (16) is arranged between the two groups of circular discs and is located at the edge of the rotating disc (14); the surface of the second winding wheel (16) is in contact with the electric wire (5).

5. The alarm device according to claim 4, characterized in that: Also includes: A first guide wheel (17); the first guide wheel (17) is arranged below the rotating disk (14) and is in contact with the electric wire (5) to control the direction of the electric wire (5).

6. The alarm device according to claim 5, characterized in that: Also includes: A second guide wheel (18); the second guide wheel (18) is arranged above the turntable (14) and is in contact with the electric wire (5); the second guide wheel (18) and the first guide wheel (17) are on the same vertical line and are used to control the direction of the electric wire (5).

7. The alarm device according to claim 1, characterized in that: Also includes: A base (7); the base (7) is arranged below the box body (1) and is fixedly connected to the box body (1) to increase the contact area between the box body (1) and the ground.

8. The alarm device according to claim 1, characterized in that: Also includes: A limiting device; the limiting device is arranged on a side of the interior of the box body (1) away from the protective cover (3), and is used to limit the protective cover (3) to the highest position.

9. The alarm device according to claim 8, characterized in that: The limiting device comprises: A bevel gear set (20), consisting of a first bevel gear and a second bevel gear, wherein an edge of the first bevel gear is meshedly connected with the second bevel gear; A hand wheel (21) is fixedly connected to the axis of the first bevel gear and is used to drive the first bevel gear to rotate; A screw (22) is fixedly connected to the axis of the second bevel gear and rotates along with the second bevel gear; A connecting frame (23) threadably connected to the screw rod (22); An inclined plate (24) is arranged above the connecting frame (23) and is fixedly connected to the connecting frame (23), and a second sliding groove is provided on the surface of the inclined plate (24); A latch pin (25), the surface of the latch pin (25) being arranged on a second cylindrical pin, the second cylindrical pin being arranged in the second slide groove and being slidably connected to the inclined plate (24) via the second slide groove; A limit plate (19), wherein one end of the limit plate (19) close to the sound and light alarm (4) is fixedly connected to the protective cover (3), and one end of the limit plate (19) away from the sound and light alarm (4) is provided with a notch, and when the limit plate (19) moves to the uppermost position, the notch and the latch (25) are on the same horizontal line.

10. The alarm device according to claim 9, characterized in that: A sliding block is provided at one end of the latch pin (25) close to the second cylindrical pin, and the top end of the sliding block is slidably connected to the box body (1) via a sliding groove provided above the inner wall of the box body (1).

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