Well lid illegal opening alarm device convenient to disassemble

Abstract

The utility model relates to the technical field of alarm devices, in particular to a conveniently-detached alarm device for illegal opening of a well lid, which comprises a well lid main body component, an auxiliary confirmation component is arranged on the inner surface wall of the well lid main body component, and a built-in alarm component is arranged at the bottom of the well lid main body component. The device can be fixed to the bottom of an iron well lid through a strong magnetic fixing plate, the well lid which cannot be magnetically attracted can also be fixed in a fixed screw hole drilling mode, meanwhile, the arranged micro radar can detect the distance between the well lid and the ground, and sound alarm and data transmission can be conducted once parameters are not correct; an auxiliary confirmation assembly is arranged, meanwhile, an infrared receiver is used for receiving a ray signal of the infrared receiver, after the trigger switch is started, the infrared structure is started again for confirmation, and the situation that the trigger switch is started when a vehicle runs on the well lid to generate a slight deviation behavior, and then the alarm device is triggered is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of alarm devices, in particular to a conveniently detachable manhole cover illegal opening alarm device. Background Art

[0002] As NB-IOT Internet of Things technology matures, smart manhole cover products will be applied on a large scale. On the basis of the original traditional functions, smart manhole covers have added illegal opening alarm functions, authorized opening electronic lock functions, etc., which strengthen the security prevention and management of manhole resources by relevant units and departments. The anti-theft of manhole covers has always been a key issue of concern to people. In order to avoid the loss of manhole covers, there are more and more anti-theft methods in the existing technology, from manhole covers with manhole cover locks to smart manhole covers, but the anti-theft methods are more complicated, and the installation and removal are more troublesome, and the staff are prone to damage during operation.

[0003] Authorization announcement number CN214311968U An alarm device for monitoring illegal opening of intelligent manhole covers, comprising: a manhole seat, the manhole seat is provided with a manhole seat ear; a top block is provided at the bottom of the manhole seat ear; a manhole cover is arranged above the manhole seat; the manhole cover is provided with a manhole cover ear corresponding to the manhole seat ear; an alarm device is fixed under the manhole cover; a controller, an alarm and an infrared detector are arranged inside the alarm device; an opening device is fixed to the manhole cover ear; the opening device comprises a guide rod, a shell, a switch, a pressure plate and a second spring; the pressure plate is arranged inside the shell; the switch is fixed to the top of the shell; one end of the guide rod passes through the shell and is connected to the pressure plate; one end of the second spring is fixed to the pressure plate, and the other end is fixed to the bottom of the shell. Thus, the utility model has a simple structure, stable operation, high monitoring efficiency, and is convenient for installation and maintenance.

[0004] However, the above and other typical existing technologies still have certain problems when used:

[0005] 1. The alarm device of this patent has too simple an installation method during use, and after installation, the manhole cover and the well body will be connected by lines, which will cause the alarm device line to be damaged after the manhole cover is violently disassembled.

[0006] 2. The alarm device of this patent does not have an alarm reconfirmation device during use. Most of the application scenarios of the manhole cover are on the road where vehicles are driving, and when the vehicle drives on it, it is very easy for the movable manhole cover to float slightly, thereby triggering the alarm device. Utility Model Content

[0007] The utility model aims to provide a removable manhole cover illegal opening alarm device to solve the problem of single installation method of the alarm device proposed in the above background technology and the problem that the alarm device cannot be confirmed twice.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A removable manhole cover illegal opening alarm device comprises a manhole cover main body component, an auxiliary confirmation component is arranged on the inner surface wall of the manhole cover main body component, and a built-in alarm component is arranged on the bottom of the manhole cover main body component;

[0010] The built-in alarm component includes a magnetic isolation installation main body plate, the magnetic isolation installation main body plate is provided with fixing screw holes, a strong magnetic fixing plate is fixedly connected to the top of the magnetic isolation installation main body plate, a central chip is installed at the bottom of the magnetic isolation installation main body plate, a miniature radar is installed at the bottom of the magnetic isolation installation main body plate, the miniature radar is electrically connected to the central chip, a sounding alarm is installed at the bottom of the magnetic isolation installation main body plate, the sounding alarm is electrically connected to the central chip, an infrared transmitter is installed at the bottom of the magnetic isolation installation main body plate, and the infrared transmitter is electrically connected to the central chip;

[0011] The auxiliary confirmation component includes a receiver fixing block, the inner surface wall of the receiver fixing block is rotatably connected with a hexagonal bolt, the side of the receiver fixing block is fixedly connected with a waterproof glass, the inner surface wall of the receiver fixing block is installed with an infrared receiver, and the infrared receiver is positioned opposite to the infrared transmitter.

[0012] As a preferred solution of the utility model, the manhole cover main body assembly includes a manhole cover mounting base, and a manhole cover fixing cylinder is fixedly connected to the top of the manhole cover mounting base.

[0013] As a preferred solution of the utility model, a movable manhole cover is slidably connected to the top of the manhole cover fixing cylinder, and a manhole cover ear is fixedly connected to the outer surface wall of the movable manhole cover.

[0014] As a preferred solution of the utility model, a trigger switch is installed on the inner surface wall of the manhole cover fixing tube, and a signal transmitter is electrically connected to the side of the trigger switch.

[0015] As a preferred solution of the utility model, the input end of the trigger switch is arranged at the bottom of the movable manhole cover, the trigger switch abuts against the movable manhole cover, and the signal transmitter is electrically connected to the infrared receiver.

[0016] As a preferred solution of the utility model, the magnetic isolation installation main body plate is arranged at the bottom of the movable manhole cover, and the magnetic isolation installation main body plate is magnetically connected to the movable manhole cover.

[0017] As a preferred solution of the utility model, the receiver fixing block is arranged on the inner surface wall of the manhole cover fixing tube, and the receiver fixing block abuts against the manhole cover fixing tube.

[0018] As a preferred solution of the utility model, the hexagonal bolt passes through the receiver fixing block and is threadedly connected to the manhole cover fixing tube.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. In the utility model, a built-in alarm component is provided, and a strong magnetic fixing plate is used so that it can be fixed on the bottom of an iron manhole cover. The manhole cover that cannot be magnetically adsorbed can also be fixed by drilling fixed screw holes. At the same time, a micro radar is provided to detect the position of the manhole cover from the ground. Once the parameters are incorrect, an audible alarm and data transmission can be performed, thus avoiding the problem that the traditional alarm device needs to be connected to the well body by lines.

[0021] 2. In the utility model, an auxiliary confirmation component is provided and an infrared receiver is used to receive the infrared receiver's ray signal. When the trigger switch is activated, the infrared structure is activated again for confirmation to avoid the trigger switch being activated by a slight deviation of the manhole cover when the vehicle is driving, thereby triggering the alarm device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the built-in alarm component of the utility model;

[0024] Figure 3 This is a schematic diagram of the auxiliary confirmation component structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the main assembly of the manhole cover of the utility model.

[0026] In the figure: 1. Built-in alarm component; 101. Magnetic isolation mounting main plate; 102. Fixing screw hole; 103. Strong magnetic fixing plate; 104. Mini radar; 105. Central chip; 106. Sound alarm; 107. Infrared transmitter; 2. Auxiliary confirmation component; 201. Receiver fixing block; 202. Hexagonal bolt; 203. Waterproof glass; 204. Infrared receiver; 3. Manhole cover main body component; 301. Manhole cover mounting base; 302. Manhole cover fixing tube; 303. Movable manhole cover; 304. Manhole cover ear; 305. Trigger switch; 306. Signal transmitter. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0029] A detachable manhole cover illegal opening alarm device comprises a manhole cover main body component 3, an auxiliary confirmation component 2 is arranged on the inner surface wall of the manhole cover main body component 3, and a built-in alarm component 1 is arranged on the bottom of the manhole cover main body component 3.

[0030] In this embodiment, refer to Figure 1 and Figure 2 As shown, the built-in alarm component 1 includes a magnetic isolation installation main body plate 101, the magnetic isolation installation main body plate 101 is provided with a fixing screw hole 102, a strong magnetic fixing plate 103 is fixedly connected to the top of the magnetic isolation installation main body plate 101, a central chip 105 is installed at the bottom of the magnetic isolation installation main body plate 101, a miniature radar 104 is installed at the bottom of the magnetic isolation installation main body plate 101, the miniature radar 104 is electrically connected to the central chip 105, a sound alarm 106 is installed at the bottom of the magnetic isolation installation main body plate 101, the sound alarm 106 is electrically connected to the central chip 105, and an infrared transmitter 107 is installed at the bottom of the magnetic isolation installation main body plate 101, and the infrared transmitter 107 is electrically connected to the central chip 105;

[0031] Among them, by providing a built-in alarm component 1, the installation method of the alarm device is no longer single, and the alarm device can still be triggered without being connected to the well body, which increases the practicality of the alarm device.

[0032] In this embodiment, refer to Figure 1 and Figure 3 As shown, the auxiliary confirmation assembly 2 includes a receiver fixing block 201, the inner surface wall of the receiver fixing block 201 is rotatably connected with a hexagonal bolt 202, the side of the receiver fixing block 201 is fixedly connected with a waterproof glass 203, and the inner surface wall of the receiver fixing block 201 is installed with an infrared receiver 204, and the infrared receiver 204 is opposite to the infrared transmitter 107;

[0033] Among them, by providing the auxiliary confirmation component 2, the problem of triggering the alarm device due to vehicle driving can be effectively avoided.

[0034] In this embodiment, refer to Figure 1 and Figure 4As shown, the manhole cover main body component 3 includes a manhole cover mounting base 301, a manhole cover fixing cylinder 302 is fixedly connected to the top of the manhole cover mounting base 301, a movable manhole cover 303 is slidably connected to the top of the manhole cover fixing cylinder 302, a manhole cover ear 304 is fixedly connected to the outer wall of the movable manhole cover 303, a trigger switch 305 is installed on the inner wall of the manhole cover fixing cylinder 302, a signal transmitter 306 is electrically connected to the side of the trigger switch 305, and the input end of the trigger switch 305 is arranged at the bottom of the movable manhole cover 303 , the trigger switch 305 is in contact with the movable manhole cover 303, the signal transmitter 306 is electrically connected to the infrared receiver 204, the magnetic isolation installation main body plate 101 is set at the bottom of the movable manhole cover 303, the magnetic isolation installation main body plate 101 is magnetically connected to the movable manhole cover 303, the receiver fixing block 201 is set on the inner surface wall of the manhole cover fixing tube 302, the receiver fixing block 201 is in contact with the manhole cover fixing tube 302, and the hexagonal bolt 202 passes through the receiver fixing block 201 and is threadedly connected to the manhole cover fixing tube 302;

[0035] Among them, through the manhole cover main body component 3, using the movable manhole cover 303, after it is separated from the trigger switch 305, the trigger switch 305 will be triggered to use the signal transmitter 306 to alarm.

[0036] Working process of the utility model: when the detachable manhole cover illegal opening alarm device designed by the present scheme is in operation, first, when the movable manhole cover 303 leaves the trigger switch 305, the trigger switch 305 will start the signal transmitter 306 to send a signal to the central chip 105, and then start the infrared transmitter 107 to transmit infrared rays to the infrared receiver 204. When the infrared receiver 204 receives the signal, it will stop the overall alarm device. When it cannot receive infrared rays, it will continue to start the micro radar 104. After the micro radar 104 detects that the movable manhole cover 303 has left the preset position, it will transmit the signal back to the central chip 105 to start the sound alarm 106 for alarm, and at the same time, it will use the signal transmitter 306 to transmit the signal to the data terminal.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A removable manhole cover illegal opening alarm device, comprising a manhole cover main body component (3), characterized in that: The inner surface wall of the manhole cover main body component (3) is provided with an auxiliary confirmation component (2), and the bottom of the manhole cover main body component (3) is provided with a built-in alarm component (1); The built-in alarm component (1) comprises a magnetic isolation installation main body plate (101), the magnetic isolation installation main body plate (101) is provided with a fixing screw hole (102), the top of the magnetic isolation installation main body plate (101) is fixedly connected with a strong magnetic fixing plate (103), the bottom of the magnetic isolation installation main body plate (101) is installed with a central chip (105), the bottom of the magnetic isolation installation main body plate (101) is installed with a micro radar (104), the micro radar (104) is electrically connected to the central chip (105), the bottom of the magnetic isolation installation main body plate (101) is installed with a sound alarm (106), the sound alarm (106) is electrically connected to the central chip (105), the bottom of the magnetic isolation installation main body plate (101) is installed with an infrared transmitter (107), the infrared transmitter (107) is electrically connected to the central chip (105); The auxiliary confirmation component (2) comprises a receiver fixing block (201), the inner surface wall of the receiver fixing block (201) is rotatably connected with a hexagonal bolt (202), the side of the receiver fixing block (201) is fixedly connected with a waterproof glass (203), and the inner surface wall of the receiver fixing block (201) is installed with an infrared receiver (204), and the infrared receiver (204) is opposite to the infrared transmitter (107).

2. The detachable manhole cover illegal opening alarm device according to claim 1, characterized in that: The manhole cover main body assembly (3) comprises a manhole cover mounting base (301), and a manhole cover fixing cylinder (302) is fixedly connected to the top of the manhole cover mounting base (301).

3. The detachable manhole cover illegal opening alarm device according to claim 2, characterized in that: The top of the manhole cover fixing cylinder (302) is slidably connected to a movable manhole cover (303), and the outer surface wall of the movable manhole cover (303) is fixedly connected to a manhole cover ear (304).

4. The detachable manhole cover illegal opening alarm device according to claim 3, characterized in that: A trigger switch (305) is installed on the inner surface wall of the manhole cover fixing tube (302), and a signal transmitter (306) is electrically connected to the side of the trigger switch (305).

5. The detachable manhole cover illegal opening alarm device according to claim 4, characterized in that: The input end of the trigger switch (305) is arranged at the bottom of the movable manhole cover (303), the trigger switch (305) is in contact with the movable manhole cover (303), and the signal transmitter (306) is electrically connected to the infrared receiver (204).

6. The detachable manhole cover illegal opening alarm device according to claim 1, characterized in that: The magnetic isolation installation main body plate (101) is arranged at the bottom of the movable manhole cover (303), and the magnetic isolation installation main body plate (101) is magnetically connected to the movable manhole cover (303).

7. The detachable manhole cover illegal opening alarm device according to claim 1, characterized in that: The receiver fixing block (201) is arranged on the inner surface wall of the manhole cover fixing tube (302), and the receiver fixing block (201) is in abutment with the manhole cover fixing tube (302).

8. The detachable manhole cover illegal opening alarm device according to claim 1, characterized in that: The hexagonal bolt (202) passes through the receiver fixing block (201) and is threadedly connected to the manhole cover fixing tube (302).

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