Well lid anti-loss alarm device

Abstract

The utility model discloses a manhole cover anti-loss alarm device which comprises an arc-shaped manhole body connecting plate, two sets of mounting holes are formed in the front face of the arc-shaped manhole body connecting plate, a protective shell is fixedly connected to the front face of the arc-shaped manhole body connecting plate, and two infrared sensors are fixedly connected to the upper surface of the protective shell. A loudspeaker is fixedly connected to the front face of the protective shell, and an electric telescopic rod is fixedly embedded in the bottom face of the protective shell. A well lid above the device can be sensed through a controller and an infrared sensor, meanwhile, when the well lid is lost, the device can work in cooperation with a loudspeaker and an alarm lamp, surrounding pedestrians are prompted, the position of a supporting plate can be controlled through an electric telescopic rod, the supporting plate can push a positioning ejector rod to move out of a well opening, and therefore the well lid is prevented from being damaged. And the reflective warning sleeve and the warning lamp warn pedestrians and vehicles, so that the problem that surrounding pedestrians are difficult to prompt and give an alarm in time due to the fact that an inclination angle sensor is easy to damage is solved.

Description

Technical Field

[0001] The utility model relates to the field of manhole covers, in particular to a manhole cover anti-lost alarm device. Background Art

[0002] There will be many underground pipelines in urban construction, such as sewers, underground gas pipelines, water pipelines, power pipelines, communication pipelines, national defense pipelines, etc. These pipelines must have an exit to the ground at every section. The section from the pipeline to the ground is called a well. The wellhead is usually flush with the ground, so a cover is needed. The cover used to cover the well is called a manhole cover. The manhole cover is usually made of reinforced cement, metal, reinforced plastic and other materials. The shape is mainly round and square. On the manhole cover, the purpose of the underground pipeline and the maintenance unit and telephone number and other information are generally indicated. Since there is a well body under the manhole cover, after the manhole cover is lost, the well body has no cover, and pedestrians and vehicles can easily fall into the well body, which is prone to safety accidents. In order to reduce the occurrence of safety accidents, a lost alarm device is needed to alarm when the manhole cover is lost.

[0003] Patent document publication number CN209056053U discloses a manhole cover anti-loss alarm device, comprising a tilt sensor body and a base clamped on the lower surface of the tilt sensor body, wherein the lower end of the tilt sensor body is integrally formed with a guide groove, the upper end of the base is clamped in the inside of the guide groove, the surface of the guide groove is provided with a positioning groove, a magnetic column is installed in the inside of the positioning groove, and the magnetic column runs through the base, and a spring groove is provided on the surface of the base; the base is adopted, so that the tilt sensor body is sleeved on the outside of the base through the guide groove, the positioning groove and the magnetic column, and at the same time, the upper end of the base is clamped in the inside of the guide groove, and the magnetic column is installed in the inside of the positioning groove, and the magnetic column runs through the base, thereby increasing the convenience of separation and installation of the tilt sensor body and the base, reducing the installation time of the tilt sensor body, and improving the efficiency of workers in replacing the tilt sensor body.

[0004] Although the above patent can detect the manhole cover through the tilt angle sensor when in use, since the tilt angle sensor needs to be installed on the manhole cover through a base, the tilt angle sensor is easily damaged by the movement of the manhole cover during use, making it difficult to prompt and alarm the surrounding pedestrians in time. Therefore, we propose a manhole cover anti-loss alarm device to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a manhole cover anti-lost alarm device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A manhole cover anti-loss alarm device comprises an arc-shaped manhole body connecting plate, two groups of mounting holes are opened on the front side of the arc-shaped manhole body connecting plate, a protective shell is fixedly connected to the front side of the arc-shaped manhole body connecting plate, two infrared sensors are fixedly connected to the upper surface of the protective shell, a speaker is fixedly connected to the front side of the protective shell, an electric telescopic rod is fixedly inlaid on the bottom surface of the protective shell, the telescopic end of the electric telescopic rod is fixedly connected to a support plate, a positioning push rod is fixedly connected to the upper surface of the support plate, an alarm light is fixedly connected to the top end of the positioning push rod, and a controller is fixedly connected to the inner bottom wall of the protective shell.

[0008] In a further embodiment, both left and right side surfaces of the protective shell are fixedly connected with positioning bars, and the back side of each positioning bar is fixedly connected to the front side of the arc-shaped well body connecting plate.

[0009] In a further embodiment, two LED light strips are provided above the protective shell, and the bottom surface of each of the LED light strips is fixedly connected to the upper surface of the protective shell.

[0010] In a further embodiment, a limiting hole is provided on the upper surface of the support plate, an inner wall of the limiting hole is slidably connected to a limiting rod, and a top end of the limiting rod is fixedly connected to the bottom surface of the protective shell.

[0011] In a further embodiment, a reflective warning sleeve is fixedly connected to the outer surface of the positioning top rod, and the reflective warning sleeve is located on the top of the positioning top rod.

[0012] In a further embodiment, the bottom end of the limiting rod is fixedly connected to the limiting plate, and two groups of ventilation holes are formed on the bottom surface of the protective shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The device can sense the manhole cover above the device by being provided with a controller and an infrared sensor, and can cooperate with a speaker and an alarm light to warn pedestrians around when the manhole cover is lost. The electric telescopic rod can be used to control the position of the support plate so that the support plate can push the positioning top rod to move out of the manhole, so that the reflective warning sleeve and the alarm light can warn pedestrians and vehicles, thereby solving the problem that the tilt angle sensor is easily damaged, making it difficult to promptly warn and alarm pedestrians around. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the manhole cover anti-loss alarm device.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the top view of the manhole cover anti-loss alarm device.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of a top-down view of a manhole cover anti-loss alarm device.

[0018] Figure 4 It is a three-dimensional structural diagram of the manhole cover anti-loss alarm device from the bottom view.

[0019] In the figure: 1. Mounting hole; 2. Protective shell; 3. Infrared sensor; 4. Arc well body connecting plate; 5. LED light bar; 6. Positioning bar; 7. Electric telescopic rod; 8. Limit rod; 9. Support plate; 10. Positioning top rod; 11. Reflective warning cover; 12. Speaker; 13. Alarm light; 14. Ventilation hole; 15. Controller; 16. Limit hole; 17. Limit plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 In the utility model, a manhole cover anti-loss alarm device includes an arc-shaped manhole body connecting plate 4, two groups of mounting holes 1 are opened on the front of the arc-shaped manhole body connecting plate 4, a protective shell 2 is fixedly connected to the front of the arc-shaped manhole body connecting plate 4, two infrared sensors 3 are fixedly connected to the upper surface of the protective shell 2, a speaker 12 is fixedly connected to the front of the protective shell 2, an electric telescopic rod 7 is fixedly inlaid on the bottom surface of the protective shell 2, the telescopic end of the electric telescopic rod 7 is fixedly connected to a support plate 9, a positioning push rod 10 is fixedly connected to the upper surface of the support plate 9, an alarm light 13 is fixedly connected to the top of the positioning push rod 10, and a controller 15 is fixedly connected to the inner bottom wall of the protective shell 2.

[0022] The left and right sides of the protective shell 2 are fixedly connected with positioning bars 6, and the back of each positioning bar 6 is fixedly connected to the front of the arc-shaped well body connecting plate 4. The positioning bars 6 can reinforce the protective shell 2 to prevent the protective shell 2 from loosening. Two LED light strips 5 are provided above the protective shell 2, and the bottom surface of each LED light strip 5 is fixedly connected to the upper surface of the protective shell 2. The LED light strips 5 can increase the brightness around the device, so that pedestrians and vehicles can see that the well cover is lost, thereby preventing safety accidents at night.

[0023] A limiting hole 16 is provided on the upper surface of the support plate 9, and the inner wall of the limiting hole 16 is slidably connected to the limiting rod 8. The top of the limiting rod 8 is fixedly connected to the bottom surface of the protective shell 2. The limiting rod 8 can be used to limit the support plate 9 to prevent the support plate 9 from shaking. A reflective warning sleeve 11 is fixedly connected to the outer surface of the positioning top rod 10. The reflective warning sleeve 11 is located at the top of the positioning top rod 10. Pedestrians can be warned by providing the reflective warning sleeve 11, so as to warn pedestrians and vehicles. The bottom end of the limiting rod 8 is fixedly connected to the limiting plate 17. Two groups of ventilation holes 14 are provided on the bottom surface of the protective shell 2. The limiting plate 17 can be used to limit the support plate 9 to prevent the support plate 9 from falling off.

[0024] The working principle of the utility model is:

[0025] When in use, the device is installed in the well through the mounting hole 1 and the arc-shaped well body connecting plate 4, the controller 15 is connected to the electric telescopic rod 7, the speaker 12, the infrared sensor 3 and the alarm light 13 through wires, and the device is connected to the municipal power supply, so that the controller 15 can control the electronic equipment inside the device. When in use, the well cover above is sensed by the infrared sensor 3. After the well cover is lost, the infrared sensor 3 can send a signal to the controller 15, and the controller 15 starts the speaker 12 to sound an alarm, and at the same time starts the electric telescopic rod 7 to shrink the electric telescopic rod 7, driving the support plate 9 to move upward, and the support plate 9 pushes the positioning push rod 10 to move upward, so that the positioning push rod 10 pushes the alarm light 13 to move upward, to warn pedestrians and vehicles, and at the same time, the reflective warning cover 11 can be used to warn vehicles so that the vehicle can adjust its direction in time.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A manhole cover anti-loss alarm device, characterized in that: The invention comprises an arc-shaped well body connecting plate (4), the front of which is provided with two groups of mounting holes (1), the front of which is fixedly connected to a protective shell (2), the upper surface of which is fixedly connected to two infrared sensors (3), the front of which is fixedly connected to a loudspeaker (12), the bottom surface of which is fixedly inlaid with an electric telescopic rod (7), the telescopic end of which is fixedly connected to a support plate (9), the upper surface of which is fixedly connected to a positioning push rod (10), the top of which is fixedly connected to an alarm light (13), and the inner bottom wall of which is fixedly connected to a controller (15).

2. A manhole cover anti-loss alarm device according to claim 1, characterized in that: Positioning strips (6) are fixedly connected to the left and right side surfaces of the protective shell (2), and the back surface of each positioning strip (6) is fixedly connected to the front surface of the arc-shaped well body connecting plate (4).

3. The manhole cover anti-loss alarm device according to claim 1, characterized in that: Two LED light bars (5) are arranged above the protective shell (2), and the bottom surface of each LED light bar (5) is fixedly connected to the upper surface of the protective shell (2).

4. The manhole cover anti-loss alarm device according to claim 1, characterized in that: A limiting hole (16) is provided on the upper surface of the support plate (9), the inner wall of the limiting hole (16) is slidably connected to a limiting rod (8), and the top end of the limiting rod (8) is fixedly connected to the bottom surface of the protective shell (2).

5. The manhole cover anti-loss alarm device according to claim 1, characterized in that: A reflective warning sleeve (11) is fixedly connected to the outer surface of the positioning top rod (10), and the reflective warning sleeve (11) is located on the top of the positioning top rod (10).

6. A manhole cover anti-loss alarm device according to claim 4, characterized in that: The bottom end of the limiting rod (8) is fixedly connected to the limiting plate (17), and the bottom surface of the protective shell (2) is provided with two groups of ventilation holes (14).

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