Safety patrol early warning device

Abstract

The utility model relates to the technical field of security and protection, and discloses a safety patrol early warning device which comprises a mounting plate, a mounting seat protruding downwards is arranged at the center of the mounting plate, a smoke sensor is fixedly mounted on the lower surface of the mounting seat, and an annular groove with a downward opening is formed in the mounting seat. An elastic rubber sleeve is fixedly connected to an opening in the lower portion of the annular groove, an annular plate is connected to the interior of the annular groove through a lifting mechanism, a plurality of sets of elastic rods are fixedly connected to the lower surface of the annular plate, in the natural state, the lower ends of the elastic rods are in a folded shape, and a detachable protective cover part is installed on the surface of the installation base. When the protective cover piece is detached from the mounting base, the lifting mechanism is arranged to be matched with the annular plate for use, in the process of replacing the filter plate cover, the exposed smoke sensor can be protected, dust in the air is prevented from being attached to the surface of the smoke sensor, and the detection precision of the smoke sensor is guaranteed.

Description

Technical Field

[0001] This application relates to the field of security technology, and in particular to a safety inspection and early warning device. Background Art

[0002] The smoke early warning system for water conservancy projects is an important part of the safety guarantee system for water conservancy projects. Its main purpose is to detect the early signs of fire in a timely manner by monitoring the smoke situation inside the project in real time, so as to quickly take corresponding measures to prevent the spread and expansion of the fire. Through such an early warning system, the losses caused by fire to water conservancy projects can be effectively reduced, and the ability of water conservancy projects to respond to disasters and the disposal efficiency can be improved.

[0003] The smoke sensor is the core component of the smoke early warning system. At present, when in use, a filter screen is set on the surface of the smoke sensor, and the filter screen needs to be cleaned or replaced regularly during use to prevent blockage. When the existing filter screen is removed for cleaning, the smoke sensor is exposed, and dust in the air easily adheres to its surface, affecting the detection accuracy of the smoke sensor. For this reason, a safety inspection and early warning device is proposed. Utility Model Content

[0004] In order to solve the problem that when the existing filter screen is removed for cleaning, the smoke sensor is exposed, and dust in the air easily adheres to its surface, affecting the detection accuracy of the smoke sensor, this application provides a safety inspection and early warning device.

[0005] The safety inspection and early warning device provided by this application adopts the following technical solutions:

[0006] A safety inspection and early warning device includes a mounting plate. The center of the mounting plate has a downwardly protruding mounting seat. The lower surface of the mounting seat is fixedly installed with a smoke sensor. An annular groove with an opening downward is arranged inside the mounting seat. The lower opening of the annular groove is fixedly connected with an elastic rubber sleeve. An annular plate is connected to the inside of the annular groove through a lifting mechanism. A plurality of elastic rods are fixedly connected to the lower surface of the annular plate. In the natural state, the lower ends of the elastic rods are in a retracted state. A detachable protective cover is installed on the surface of the mounting seat. When the protective cover is removed from the mounting seat, the lifting mechanism can drive the elastic rods out of the annular groove, so that the elastic rubber sleeve covers the outside of the smoke sensor.

[0007] Preferably, the lifting mechanism includes springs fixedly installed on the upper surface of the annular plate. There are at least three groups of springs, and the three groups of springs are distributed in an annular array on the upper surface of the annular plate. The upper ends of the springs are fixedly connected to the inner wall of the annular groove. Sliding grooves are formed on both sides of the mounting seat, and sliding blocks adapted to the sliding grooves are formed on both sides of the annular plate. One end of each sliding block away from the annular plate extends outside the sliding groove. A top groove is formed on the inner surface of the protective cover member near the opening. When the protective cover member is installed on the surface of the mounting seat, one end of the sliding block is located inside the top groove, the sliding block is located at the top of the sliding groove, and the spring is in a compressed state.

[0008] Preferably, the protective cover member includes a cover body and a filter plate cover. The bottom of the cover body is a hollowed-out part. The inner surface of the top of the cover body and the outer surface of the mounting seat are provided with a threaded structure adapted to each other. The top groove is formed on the inner surface of the opening of the cover body. The filter plate cover is installed inside the cover body through a connecting mechanism, and the filter plate cover covers the hollowed-out part of the cover body.

[0009] Preferably, the connecting mechanism includes a threaded sleeve fixedly installed at the bottom inside the cover body. A screw rod adapted to the threaded sleeve is fixedly connected to the bottom of the filter plate cover. The threaded sleeve and the screw rod are rotatably inserted and matched, and an external thread adapted to the cover body is provided on the outer surface of the top of the filter plate cover.

[0010] Preferably, a plurality of groups of mounting holes distributed in an annular array are formed on the surface of the mounting plate. The mounting plate is pre-installed on the wall surface by inserting expansion screws into the mounting holes.

[0011] In summary, the present application includes the following beneficial technical effects:

[0012] By using the lifting mechanism in cooperation with the annular plate, the present utility model can protect the exposed smoke sensor during the process of replacing the filter plate cover, prevent dust in the air from adhering to the surface of the smoke sensor, and ensure the detection accuracy of the smoke sensor. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the whole application embodiment;

[0014] Figure 2 is a cross-sectional view of the application embodiment;

[0015] Figure 3 is a schematic structural diagram of a part of the application embodiment;

[0016] Figure 4 is a cross-sectional view of the protective cover member of the application embodiment;

[0017] Figure 5 is a schematic structural diagram of the elastic rod in the natural state of the application embodiment;

[0018] Figure 6 It is an enlarged view of the location A in the application embodiment Figure 2 in the application embodiment;

[0019] Figure 7 It is an enlarged view of the location A in the application embodiment Figure 4 in the application embodiment;

[0020] Explanation of reference numerals: 1. mounting plate; 2. mounting hole; 3. cover body; 4. smoke sensor; 5. filter plate cover; 6. annular groove; 7. spring; 8. sliding groove; 9. slider; 10. elastic rubber sleeve; 11. elastic rod; 12. screw rod; 13. threaded sleeve; 14. annular plate; 15. top groove; 16. mounting seat. Detailed implementation manners

[0021] The following further describes the present application in detail Figures 1-7 in conjunction with the accompanying drawings.

[0022] An embodiment of the present application discloses a safety inspection and early warning device, including a mounting plate 1. The center of the mounting plate 1 has a downwardly protruding mounting seat 16. A smoke sensor 4 is fixedly installed on the lower surface of the mounting seat 16. An annular groove 6 with an opening facing downward is provided inside the mounting seat 16. An elastic rubber sleeve 10 is fixedly connected to the lower opening of the annular groove 6. An annular plate 14 is connected to the inside of the annular groove 6 through a lifting mechanism. A plurality of elastic rods 11 are fixedly connected to the lower surface of the annular plate 14. In the natural state, the lower ends of the elastic rods 11 are in a retracted state. A detachable protective cover member is installed on the surface of the mounting seat 16. When the protective cover member is removed from the mounting seat 16, the lifting mechanism can drive the elastic rods 11 out of the annular groove 6, so that the elastic rubber sleeve 10 covers the outside of the smoke sensor 4.

[0023] Furthermore, a plurality of mounting holes 2 distributed in an annular array are formed on the surface of the mounting plate 1. The mounting plate 1 is pre-installed on the wall surface by inserting expansion screws into the mounting holes 2.

[0024] Furthermore, the protective cover member includes a cover body 3 and a filter plate cover 5. The bottom of the cover body 3 is a hollowed-out part. The inner surface of the top of the cover body 3 and the outer surface of the mounting seat 16 are provided with a threaded structure adapted to each other. A top groove 15 is provided on the inner surface of the opening of the cover body 3. The filter plate cover 5 is installed inside the cover body 3 through a connecting mechanism, and the filter plate cover 5 covers the hollowed-out part of the cover body 3.

[0025] Furthermore, the connecting mechanism includes a threaded sleeve 13 fixedly installed at the inner bottom of the cover body 3. A screw rod 12 adapted to the threaded sleeve 13 is fixedly connected to the bottom of the filter plate cover 5. The threaded sleeve 13 and the screw rod 12 are rotationally inserted and matched, and an external thread adapted to the cover body 3 is provided on the outer surface of the top of the filter plate cover 5.

[0026] In this embodiment, the filter plate cover 5 is used to filter fine dust in the flue gas, preventing the fine dust from adhering to the surface of the smoke sensor 4 and affecting the detection accuracy of the smoke sensor 4. After long-term use, the filter plate cover 5 needs to be disassembled and replaced to prevent the filter plate cover 5 from being blocked. Specifically, when replacing the filter plate cover 5, only the cover body 3 needs to be rotated to disassemble the cover body 3 from the mounting seat 16, and then one end of the screw rod 12 is held and rotated to screw the screw rod 12 out of the threaded sleeve 13. When the screw rod 12 is rotated, the filter plate cover 5 itself will be driven to rotate, so that the filter plate cover 5 is rotationally engaged with the cover body 3 and is screwed out of the cover body 3. After replacing the new filter plate cover 5, the new filter plate cover 5 can be installed inside the cover body 3 by operating in reverse according to the above steps.

[0027] Furthermore, the lifting mechanism includes springs 7 fixedly installed on the upper surface of the annular plate 14. There are at least three springs 7, and the three springs 7 are distributed in a circular array on the upper surface of the annular plate 14. The upper ends of the springs 7 are fixedly connected to the inner wall of the annular groove 6. Sliding grooves 8 are opened on both sides of the mounting seat 16, and sliding blocks 9 adapted to the sliding grooves 8 are opened on both sides of the annular plate 14. One ends of the sliding blocks 9 far away from the annular plate 14 extend outside the sliding grooves 8. A top groove 15 is opened on one side of the inner surface of the protective cover member close to the opening. When the protective cover member is installed on the surface of the mounting seat 16, one end of the sliding block 9 is located inside the top groove 15, the sliding block 9 is located at the top of the sliding groove 8, and the spring 7 is in a compressed state.

[0028] In this embodiment, by setting the lifting mechanism to cooperate with the annular plate 14, during the process of replacing the filter plate cover 5, the exposed smoke sensor 4 can be protected to prevent dust in the air from adhering to the surface of the smoke sensor 4. Specifically, after the protective cover member is removed from the mounting seat 16, the compressed spring 7 elongates, driving the annular plate 14, the sliding block 9 and the elastic rod 11 to move, so that the lower part of the elastic rod 11 moves out of the annular groove 6. The elastic rod 11 drives the elastic rubber sleeve 10 to stretch. And because the lower parts of the elastic rods 11 move closer to each other after moving out of the annular groove 6, the elastic rod 11 can drive the elastic rubber sleeve 10 to move closer, so that the elastic rubber sleeve 10 covers the outside of the smoke sensor 4, thereby preventing dust in the air from adhering to the surface of the smoke sensor 4. After cleaning the protective cover member, the protective cover member is reinstalled on the mounting seat 16. The top groove 15 on the protective cover member forms a movement interference on the sliding block 9, so that the sliding block 9 is located at the top of the sliding groove 8, that is, the annular plate 14 moves back to its original position, the elastic rod 11 returns to the inside of the annular groove 6, and the elastic rubber sleeve 10 also returns to its original state under the action of its own elasticity and no longer blocks the smoke sensor 4, enabling the smoke sensor 4 to work normally.

[0029] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative positional relationship. When the absolute position of the object being described changes, the relative positional relationship may change;

[0030] Second, in the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0032] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered by the protection scope of this application.

Claims

1. A safety inspection and early warning device, comprising a mounting plate (1), characterized in that, The center of the mounting plate (1) is provided with a mounting seat (16) protruding downward, and a smoke sensor (4) is fixedly mounted on the lower surface of the mounting seat (16). An annular groove (6) with an opening facing downward is provided inside the mounting seat (16), and an elastic rubber sleeve (10) is fixedly connected to the lower opening of the annular groove (6). An annular plate (14) is connected inside the annular groove (6) via a lifting mechanism, and a plurality of groups of elastic rods (11) are fixedly connected to the lower surface of the annular plate (14). In a natural state, the lower ends of the elastic rods (11) are in a retracted shape. A detachable protective cover is mounted on the surface of the mounting seat (16). When the protective cover is removed from the mounting seat (16), the lifting mechanism can drive the elastic rod (11) to move out of the annular groove (6), so that the elastic rubber sleeve (10) is covered on the outside of the smoke sensor (4).

2. The safety inspection and early warning device according to claim 1, characterized in that, The lifting mechanism comprises a spring (7) fixedly mounted on the upper surface of the annular plate (14), wherein at least three groups of the springs (7) are provided, and the three groups of the springs (7) are distributed in an annular array on the upper surface of the annular plate (14), and the upper ends of the springs (7) are fixedly connected to the inner wall of the annular groove (6), and the mounting seat (16) is provided with a slide groove (8) on both sides, and the annular plate (14) is provided with a slider (9) adapted to the slide groove (8), and the end of the slider (9) away from the annular plate (14) extends to the outside of the slide groove (8), and the inner surface of the protective cover member is provided with a top groove (15) on the side close to the opening, and when the protective cover member is mounted on the surface of the mounting seat (16), one end of the slider (9) is located inside the top groove (15), and the slider (9) is located at the top of the slide groove (8), and the spring (7) is in a compressed state.

3. The safety inspection and early warning device according to claim 2, characterized in that, The protective cover comprises a cover body (3) and a filter plate cover (5); the bottom of the cover body (3) is a hollow portion; the inner surface of the top of the cover body (3) and the outer surface of the mounting seat (16) are arranged as matching threaded structures; the top groove (15) is arranged on the inner surface of the opening of the cover body (3); the filter plate cover (5) is mounted inside the cover body (3) via a connecting mechanism, and the filter plate cover (5) covers the hollow portion of the cover body (3).

4. The safety inspection and early warning device according to claim 3, wherein The connection mechanism comprises a threaded sleeve (13) fixedly mounted on the bottom of the cover body (3); a screw (12) adapted to the threaded sleeve (13) is fixedly connected to the bottom of the filter plate cover (5); the threaded sleeve (13) and the screw (12) are rotatably plugged in cooperation; and an external thread adapted to the cover body (3) is provided on the top outer surface of the filter plate cover (5).

5. The safety inspection and early warning device according to claim 1, characterized in that The surface of the mounting plate (1) is provided with a plurality of mounting holes (2) distributed in a circular array, and the mounting holes (2) are used to pre-install the mounting plate (1) on the wall surface by inserting expansion screws.

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