Alarm device for mine fire protection

Abstract

The utility model relates to an alarm device for mine fire protection, and belongs to the technical field of smoke alarm devices. According to the technical scheme, an alarm main body (2) is fixedly connected to the upper face of a mounting plate (1), the number of smoke inlets (201) is more than one, and the smoke inlets (201) are formed in the front side and the rear side of the alarm main body (2) in a scattered mode; the warning horn (3) is fixedly connected to the left side of the alarm body (2), the warning lamp (4) is fixedly connected to the upper portion of the alarm body (2), the fixing piece (5) is fixedly connected to the lower portion of the mounting plate (1), the driving motor (6) is fixedly connected to the lower portion of the fixing piece (5), and the swing assembly is arranged below the mounting plate (1). The beneficial effects of the utility model are that the arc-shaped plate reciprocates on the surface of the alarm main body, so that the sensitivity of a sensitive element in the smoke inlet is prevented from being influenced by dust, the separation and fixation operations of the mounting plate and the bearing block are simple, and the maintenance efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to a fire alarm device for mine fire protection, belonging to the technical field of smoke alarm devices. Background Art

[0002] As a special workplace, mines have a relatively high risk of fire. Smoke detectors are one of the important fire-fighting equipment in mines. They can detect the concentration of smoke in the air and trigger an alarm when the smoke concentration exceeds a preset threshold, alerting people to the possibility of a fire. Existing smoke detectors generally consist of a mounting plate, the main body of the detector, a warning horn, and a warning light.

[0003] Existing application number: CN201720372787.3, this utility model discloses a smoke alarm, including a smoke alarm body and a mounting base connected to the smoke alarm. The smoke alarm body includes a housing, a circuit board installed in the housing, and a smoke sensor, a temperature sensor, a buzzer, and a smoke generator connected to the circuit board. A microcontroller, a data preprocessing module, a communication module, a TD-LTE module, and a power module are soldered on the circuit board to realize remote monitoring, timely alarm, reduce casualties and financial losses, and provide a dual-sensor design that detects not only smoke but also temperature to avoid false alarms caused by single detection. The fire signal is transmitted to the homeowner via 4G communication, so that the alarm can be triggered in time regardless of location, reducing casualties and financial losses. After the fire, the data can be downloaded and analyzed to provide data for preventing future fires.

[0004] Based on the above, when smoke detectors are installed and used in mines, the fire protection pressure is high due to the large amount of dust in the mines. This requires the smoke detectors to be in normal working condition. Therefore, it is necessary to frequently remove and inspect the smoke detectors. However, most smoke detectors are fixed with bolts, and tools such as screwdrivers and wrenches are required for disassembly and assembly, which makes the operation inconvenient. Summary of the Invention

[0005] The purpose of this utility model is to provide a mine fire alarm device. By having an arc-shaped plate move back and forth on the surface of the alarm body, dust can be avoided from affecting the sensitivity of the sensitive element in the smoke inlet. The separation and fixing of the mounting plate and the receiving block are simple, which greatly improves maintenance efficiency and solves the above-mentioned problems in the background art.

[0006] The technical solution of this utility model is: a mine fire alarm device, comprising a mounting plate, an alarm body, a smoke inlet, a warning horn, a warning light, a fixing component, a drive motor, a swing assembly, and a mounting assembly. The alarm body is fixedly connected to the mounting plate. There is one or more smoke inlets, which are distributed on the front and rear sides of the alarm body. The warning horn is fixedly connected to the left side of the alarm body, the warning light is fixedly connected to the top of the alarm body, the fixing component is fixedly connected to the bottom of the mounting plate, the drive motor is fixedly connected to the bottom of the fixing component, and the swing assembly is located under the mounting plate.

[0007] The swing assembly includes a drive plate and a drive column. The drive plate is coaxially fixedly connected to the end of the shaft of the drive motor, and the drive column is fixedly connected to the drive plate.

[0008] The swing assembly also includes a connecting shaft, a connecting plate, and a straight slot. The connecting shaft is rotatably connected inside the mounting plate, the right end of the connecting plate is fixedly connected to the bottom of the connecting shaft, and the straight slot is opened inside the connecting plate, through which the drive column passes.

[0009] The swing assembly also includes a connecting rod and an arc-shaped plate. The connecting rod is fixedly connected to the outside of the connecting shaft. Two arc-shaped plates are provided, and the two arc-shaped plates are separately fixedly connected to the front and rear ends of the connecting rod.

[0010] The mounting assembly includes a connecting block, a sliding plate, and a limiting member. The connecting block is fixedly connected to the right side inside the mounting plate. There are two sliding plates, which are slidably connected to the connecting block. There are two limiting members, which are fixedly connected to the bottom of the two sliding plates respectively.

[0011] The mounting assembly also includes a receiving block, a receiving groove, and a return spring. The receiving block is located on the right side of the connecting block. There are two receiving grooves, which are distributed inside the receiving block. The return spring is fixedly connected to the inside of the two limiting members.

[0012] The beneficial effects of this utility model are: by moving the arc plate back and forth on the surface of the alarm body, dust is avoided from affecting the sensitivity of the sensitive element in the smoke inlet; the separation and fixing of the mounting plate and the receiving block are simple, greatly improving maintenance efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the mounting plate structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the connecting plate structure of this utility model;

[0016] Figure 4This is a schematic diagram of the receiving block structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the connecting block of this utility model;

[0018] In the diagram: 1. Mounting plate; 2. Alarm body; 3. Smoke inlet; 4. Warning horn; 5. Warning light; 6. Fixture; 7. Drive motor; 8. Drive plate; 9. Drive column; 10. Connecting shaft; 11. Connecting plate; 12. Connecting rod; 13. Arc plate; 14. Connecting block; 15. Actuating slide; 16. Limiting element; 17. Receiving block; 18. Receiving groove; 19. Return spring. Detailed Implementation

[0019] To make the purpose, technical solution, and advantages of this utility model clearer, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described implementation cases are only a small part of this utility model, not all of them. All other implementation cases obtained by those skilled in the art based on the implementation cases of this utility model without creative effort are within the protection scope of this utility model.

[0020] A mine fire alarm device includes a mounting plate 1, an alarm body 2, a smoke inlet 201, a warning horn 3, a warning light 4, a fixing component 5, a drive motor 6, a swing assembly, and a mounting assembly. The alarm body 2 is fixedly connected to the mounting plate 1. There is one or more smoke inlets 201, which are distributed on the front and rear sides of the alarm body 2. The warning horn 3 is fixedly connected to the left side of the alarm body 2. The warning light 4 is fixedly connected to the top of the alarm body 2. The fixing component 5 is fixedly connected to the bottom of the mounting plate 1. The drive motor 6 is fixedly connected to the bottom of the fixing component 5. The swing assembly is located under the mounting plate 1.

[0021] The swing assembly includes a drive plate 7 and a drive column 701. The drive plate 7 is coaxially fixedly connected to the end of the shaft of the drive motor 6, and the drive column 701 is fixedly connected to the drive plate 7.

[0022] The swing assembly also includes a connecting shaft 8, a connecting plate 801 and a straight slot 802. The connecting shaft (8) is rotatably connected inside the mounting plate 1. The right end of the connecting plate 801 is fixedly connected to the bottom of the connecting shaft 8. The straight slot 802 is opened inside the connecting plate 801. The drive column 701 passes through the straight slot 802.

[0023] The swing assembly also includes a connecting rod 9 and an arc plate 10. The connecting rod 9 is fixedly connected to the outside of the connecting shaft 8. Two arc plates 10 are provided, and the two arc plates 10 are fixedly connected to the front and rear ends of the connecting rod 9 respectively.

[0024] The mounting assembly includes a connecting block 11, a sliding plate 12, and a limiting member 1201. The connecting block 11 is fixedly connected to the right side inside the mounting plate 1. There are two sliding plates 12, which are slidably connected to the connecting block 11. There are two limiting members 1201, which are fixedly connected to the bottom of the two sliding plates 12 respectively.

[0025] The mounting assembly also includes a receiving block 13, a receiving groove 1301, and a return spring 14. The receiving block 13 is located on the right side of the connecting block 11. Two receiving grooves 1301 are provided, and the two receiving grooves 1301 are distributed inside the receiving block 13. The return spring 14 is fixedly connected to the inside of the two limiting members 1201. Example 1

[0026] like Figures 1 to 5 As shown:

[0027] This utility model includes a mounting plate 1;

[0028] Alarm body 2 is fixedly connected to mounting plate 1;

[0029] Multiple smoke inlets 201 are provided, and the multiple smoke inlets 201 are distributed on the front and rear sides of the alarm body 2.

[0030] Warning horn 3 is fixedly connected to the left side of the alarm body 2;

[0031] Warning light 4 is fixedly connected to the main body 2 of the alarm.

[0032] Fastener 5 is fixedly connected to the underside of mounting plate 1;

[0033] Drive motor 6 is fixedly connected to the underside of fixture 5;

[0034] The swing assembly is located below the mounting plate 1 and on the front and rear sides of the alarm body 2.

[0035] The swing component includes:

[0036] Drive board 7 is coaxially and fixedly connected to the end of the shaft of drive motor 6;

[0037] The drive column 701 is fixedly connected to the drive plate 7. Its function is that when the drive motor 6 drives the drive plate 7 to rotate, the drive column 701 will make circular motion around the axis of the drive motor 6.

[0038] The swing component also includes:

[0039] Connecting shaft 8 is rotatably connected inside mounting plate 1;

[0040] Connecting plate 801, the right end of connecting plate 801 is fixedly connected to the bottom of connecting shaft 8;

[0041] The straight slot 802 is opened inside the connecting plate 801. The drive column 701 passes through the straight slot 802. The function of the drive column 701 is that the movement of the drive column 701 in the straight slot 802 will cause the connecting plate 801 to swing around the connecting shaft 8 as the axis.

[0042] The swing component also includes:

[0043] Connecting rod 9 is fixedly connected to the outside of connecting shaft 8;

[0044] Two arc-shaped plates 10 are provided, and the two arc-shaped plates 10 are fixedly connected to the front and rear ends of the connecting rod 9. The function is that the inner surface of the two arc-shaped plates 10 fits against the surface of the alarm body 2. The connecting shaft 8 drives the two arc-shaped plates 10 to move back and forth on the surface of the alarm body 2 through the connecting rod 9, thereby avoiding the accumulation of dust near the smoke inlet 201 and affecting the normal operation of the alarm body 2.

[0045] The specific usage and function of this embodiment are as follows:

[0046] Due to the high dust levels in mines, dust easily accumulates near the smoke inlet 201 of the alarm body 2 during daily operation, which may cause decreased sensitivity or false alarms. In this case, the drive motor 6 can drive the drive plate 7 to rotate, causing the drive column 701 to make circular motion around the axis of the drive motor 6. Since the drive column 701 passes through the straight slot 802, the movement of the drive column 701 within the straight slot 802 will cause the connecting plate 801 to swing around the connecting shaft 8. The connecting shaft 8, through the connecting rod 9, drives the two arc-shaped plates 10, whose inner surfaces are in contact with the surface of the alarm body 2, to move back and forth on the surface of the alarm body 2, thereby preventing dust from accumulating near the smoke inlet 201 and affecting the normal operation of the alarm body 2. Example 2

[0047] Based on Example 1, such as Figures 1 to 5 As shown, it also includes an installation component, which is located inside and on the right side of the installation plate 1.

[0048] The installation components include:

[0049] Connecting block 11 is fixedly connected to the inside right side of mounting plate 1;

[0050] The slider 12 is moved. Two sliders 12 are provided, and the two sliders 12 are slidably connected inside the connecting block 11.

[0051] The limiting member 1201 is provided in two parts. The two limiting members 1201 are fixedly connected to the two sliding pieces 12 respectively. The function is that when the two sliding pieces 12 are moved inward, the two limiting members 1201 can be driven to retract inward.

[0052] The installation components also include:

[0053] The receiving block 13 is located on the right side of the connecting block 11;

[0054] The receiving groove 1301 is provided in two parts, and the two receiving grooves 1301 are distributed inside the receiving block 13.

[0055] The reset spring 14 is fixedly connected to the inner side of the two limiting pieces 1201. Its function is to release the two actuating slide pieces 12. Under the action of the reset spring 14, the two limiting pieces 1201 move outward and insert into the two receiving grooves 1301 of the receiving block 13, thereby fixing the connecting block 11 and the receiving block 13.

[0056] The specific usage and function of this embodiment are as follows:

[0057] When in use, the receiving block 13 is fixed to the building in the area being inspected by bolts. When the alarm body 2, the warning horn 3, and the warning light 4 need to be inspected, the two sliding pieces 12 are moved inward, which causes the two limiting pieces 1201 to retract inward, so that the connecting block 11 can be pulled out from the receiving block 13, making it convenient to remove the mounting plate 1 and inspect the components on it. After the inspection is completed, the two sliding pieces 12 are moved inward again, and the two limiting pieces 1201 are inserted into the two receiving grooves 1301 of the receiving block 13. Then the two sliding pieces 12 are released. Under the action of the return spring 14, the two limiting pieces 1201 move outward and are inserted into the outermost part of the two receiving grooves 1301, so that the connecting block 11 and the receiving block 13 are fixed, thereby fixing the mounting plate 1 to the building in the area being inspected.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] First, the drive motor drives the connecting shaft to swing back and forth. The connecting shaft, through the connecting rod, drives the two arc-shaped plates whose inner surfaces are in contact with the surface of the alarm body to move back and forth on the surface of the alarm body. This prevents dust from clogging or blocking the sensitive element in the smoke inlet, thus reducing its sensitivity to smoke and preventing false alarms or missed alarms from the alarm body.

[0060] Secondly, by moving the two sliding pieces inward, the mounting plate can be disengaged from the receiving block fixed on the building, making it convenient to inspect and repair the components on the mounting plate. After inserting the two limiting pieces into the two receiving grooves of the receiving block, the two sliding pieces can be released to fix the connecting block and the receiving block, thereby fixing the mounting plate to the building in the area being inspected.

[0061] This invention uses an arc-shaped plate that moves back and forth on the surface of the alarm body to prevent dust from affecting the sensitivity of the sensitive element in the smoke inlet, thus enabling the alarm body to operate more stably. The separation and fixing of the mounting plate and the receiving block are simple and can be removed without the aid of any external tools, greatly improving maintenance efficiency.

Claims

1. A mine fire alarm device, characterized in that: The device includes a mounting plate (1), an alarm body (2), a smoke inlet (201), a warning horn (3), a warning light (4), a fixing piece (5), a drive motor (6), a swing assembly, and a mounting assembly. The alarm body (2) is fixedly connected to the mounting plate (1). There is one or more smoke inlets (201), which are distributed on the front and rear sides of the alarm body (2). The warning horn (3) is fixedly connected to the left side of the alarm body (2). The warning light (4) is fixedly connected to the top of the alarm body (2). The fixing piece (5) is fixedly connected to the bottom of the mounting plate (1). The drive motor (6) is fixedly connected to the bottom of the fixing piece (5). The swing assembly is located under the mounting plate (1).

2. The mine fire alarm device according to claim 1, characterized in that: The swing assembly includes a drive plate (7) and a drive column (701). The drive plate (7) is coaxially fixedly connected to the end of the shaft of the drive motor (6), and the drive column (701) is fixedly connected to the drive plate (7).

3. The alarm device for mine fire fighting according to claim 2, characterized in that: The swing assembly also includes a connecting shaft (8), a connecting plate (801) and a straight slot (802). The connecting shaft (8) is rotatably connected inside the mounting plate (1). The right end of the connecting plate (801) is fixedly connected to the bottom of the connecting shaft (8). The straight slot (802) is opened inside the connecting plate (801). The drive column (701) passes through the straight slot (802).

4. A mine fire alarm device according to claim 3, characterized in that: The swing assembly also includes a connecting rod (9) and an arc plate (10). The connecting rod (9) is fixedly connected to the outside of the connecting shaft (8). Two arc plates (10) are provided, and the two arc plates (10) are fixedly connected to the front and rear ends of the connecting rod (9).

5. A mine fire alarm device according to claim 1, characterized in that: The mounting assembly includes a connecting block (11), a sliding piece (12), and a limiting member (1201). The connecting block (11) is fixedly connected to the right side inside the mounting plate (1). There are two sliding pieces (12), which are slidably connected inside the connecting block (11). There are two limiting members (1201), which are fixedly connected below the two sliding pieces (12).

6. A mine fire alarm device according to claim 5, characterized in that: The mounting assembly also includes a receiving block (13), a receiving groove (1301), and a return spring (14). The receiving block (13) is located on the right side of the connecting block (11). There are two receiving grooves (1301), which are distributed inside the receiving block (13). The return spring (14) is fixedly connected to the inside of the two limiting members (1201).

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