Well lid opening alarm device

Abstract

The utility model relates to a well lid opening alarm device which comprises a well lid frame and a movable well lid, the movable well lid is connected with the well lid frame through a hinge, a blocking device is arranged on the inner frame wall of the well lid frame, a plurality of sliding holes are formed in the frame wall of the well lid frame, and a plurality of lamplight warning devices are arranged in the sliding holes in a sliding mode. The blocking equipment comprises a base, a guide frame is arranged at the top end of the base, the outer wall of the guide frame is fixedly connected with the inner frame wall of the well lid frame, a plurality of guide holes are formed in the connecting position of the guide frame and the well lid frame, and ejection air rods are arranged in the guide holes. The utility model relates to the technical field of well lid safety. According to the device for well lid opening alarm, when the movable well lid is stolen, the warning ring is ejected upwards through the arrangement of the ejection air rod, the warning ring is made to be higher than the road surface, high protrusions can be generated on the road surface, then the effect of warning pedestrians can be effectively achieved, and the purpose of reducing danger is achieved.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover safety technology, and in particular to a device for alarming the opening of manhole covers. Background Technology

[0002] Manhole covers are used to cover deep wells in roads or homes to prevent people or objects from falling in. They can be classified by material, such as metal manhole covers, high-strength fiber cement concrete manhole covers, and resin manhole covers. In recent years, rapid urbanization and the large-scale laying of power and communication cables have created a vast underground power and communication network.

[0003] The lack of effective real-time monitoring and management methods has provided opportunities for criminals, and illegal activities such as moving and stealing manhole covers occur frequently. At the same time, damaged, missing, or destroyed manhole covers cannot be detected in time and cannot be repaired in a timely manner. This not only affects the normal operation of related cable equipment, but also poses a huge threat to the reliability of power grid supply and communication networks.

[0004] In existing technologies, information about stolen manhole covers is usually transmitted to the relevant departments via the Internet of Things (IoT) for replacement by workers. However, during this process, the manhole is often open and there are usually no warning signs, making it easy for danger to occur. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for alarming the opening of manhole covers, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A device for alarming the opening of a manhole cover includes a manhole cover frame and a movable manhole cover. The movable manhole cover is connected to the manhole cover frame by a hinge. The inner frame wall of the manhole cover frame is provided with a blocking device. Several sliding holes are opened inside the frame wall of the manhole cover frame, and several light warning devices are slidably installed inside the sliding holes.

[0008] The blocking device includes a base, a guide frame at the top of the base, the outer wall of the guide frame being fixedly connected to the inner wall of the manhole cover frame, several guide holes being provided at the connection between the guide frame and the manhole cover frame, and an air popper rod being provided inside the guide hole, with a warning ring at the top of the air popper rod.

[0009] Furthermore, the light warning device includes a lamp holder, which is slidably installed inside a sliding hole. A warning light is installed inside the lamp holder, and a support spring is installed at the bottom end of the lamp holder. A threaded mounting block is fixedly installed at the bottom end of the support spring.

[0010] Furthermore, the upper end of the base is provided with several threaded holes, the positions of which correspond one-to-one with the positions of the sliding holes, and the threaded holes are threadedly engaged with the threaded mounting blocks.

[0011] Furthermore, the outer wall of the warning ring is provided with a reflective warning sticker.

[0012] Furthermore, the lamp holder includes a cylindrical tube with several light-transmitting grooves on its wall. A conductive patch is provided at the bottom of the cylindrical tube. An energized patch that cooperates with the conductive patch is provided at the edge of the sliding hole at the bottom of the manhole cover frame. An anti-pressure ball is provided at the top of the lamp holder.

[0013] Furthermore, a controller is installed inside the manhole cover frame, and a power supply wire is installed on one side of the controller, which runs through the manhole cover frame. The controller is connected to the power-conducting patch.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. This device for alarming the opening of manhole covers, when a movable manhole cover is stolen, uses a pop-out air rod to push the warning ring upward, making the warning ring higher than the road surface, thus creating a higher bulge on the road surface, which can effectively warn pedestrians and reduce the risk of danger.

[0016] 2. This device for alarming the opening of manhole covers, when the movable manhole cover is stolen, the support spring extends and pushes the lamp holder out of the sliding hole, so that the lamp holder protrudes from the manhole cover frame. At this time, the warning light generated by the warning light inside the lamp holder is emitted, which can provide a good warning effect at night.

[0017] 3. This device for alarming the opening of manhole covers uses reflective warning stickers to reflect the light emitted by the warning lights at night, forming a ring of light around the warning ring. This effectively alerts pedestrians to the shape and exact location of the manhole opening, further enhancing the warning effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a device for alarming the opening of a manhole cover according to the present invention.

[0020] Figure 2This is a schematic diagram of the structure of a light warning device for a manhole cover opening alarm according to the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of a manhole cover frame for a manhole cover opening alarm device according to the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of a warning ring for a manhole cover opening alarm device according to the present invention.

[0023] Figure 5 This is a schematic diagram of the lamp holder of a device for alarming the opening of a manhole cover according to the present invention.

[0024] In the diagram, 1. Manhole cover frame; 11. Power supply wire; 2. Movable manhole cover; 3. Blocking device; 31. Base; 32. Guide frame; 33. Guide hole; 34. Warning ring; 35. Threaded hole; 36. Pop-up air rod; 4. Sliding hole; 5. Light warning device; 51. Lamp holder; 511. Cylindrical tube; 512. Light-transmitting groove; 513. Conductive patch; 514. Power-conducting patch; 515. Anti-pressure ball; 52. Warning light; 53. Support spring; 54. Threaded mounting block. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1 - Figure 5 The present invention discloses a device for alarming the opening of a manhole cover, including a manhole cover frame 1 and a movable manhole cover 2. The movable manhole cover 2 is connected to the manhole cover frame 1 by a hinge. The inner frame wall of the manhole cover frame 1 is provided with a blocking device 3. Several sliding holes 4 are opened inside the frame wall of the manhole cover frame 1. Several light warning devices 5 are slidably arranged inside the sliding holes 4.

[0028] The blocking device 3 includes a base 31, a guide frame 32 is provided at the top of the base 31, the outer wall of the guide frame 32 is fixedly connected to the inner frame wall of the manhole cover frame 1, a number of guide holes 33 are provided at the position where the guide frame 32 is connected to the manhole cover frame 1, and a pop-out air rod 36 is provided inside the guide hole 33, and a warning ring 34 is provided at the top of the pop-out air rod 36.

[0029] In this embodiment, when the manhole cover is in the closed state, the upper surface of the manhole cover is flush with the road surface, and the bottom surface of the movable manhole cover 2 is in contact with the surface of the manhole cover frame 1. Therefore, the light warning device 5 and the blocking device 3 can be pressed down by the gravity of the movable manhole cover 2, so that the light warning device 5 and the blocking device 3 are pressed into the interior of the manhole cover frame 1. At this time, the pop-out air rod 36 is in a compressed state.

[0030] When the movable manhole cover 2 is stolen, the warning ring 34 is pushed upward by the pop-out air rod 36, making the warning ring 34 higher than the road surface, so that the road surface can be raised higher, which can effectively warn pedestrians and reduce the danger.

[0031] The light warning device 5 provides light warning, and the light and the warning ring together form a halo to improve the warning effect.

[0032] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the light warning device 5 includes a lamp holder 51, which is slidably installed inside the sliding hole 4. A warning light 52 is installed inside the lamp holder 51. A support spring 53 is installed at the bottom end of the lamp holder 51, and a threaded mounting block 54 is fixedly installed at the bottom end of the support spring 53.

[0033] In this embodiment, when the manhole cover is closed, the bottom wall of the manhole cover presses down on the top of the lamp holder 51 and presses the lamp holder 51 downward, so that the lamp holder 51 is inside the sliding hole 4 and compresses the support spring 53. When the manhole cover is opened, the support spring 53 extends and pushes the lamp holder 51 out of the sliding hole 4, so that the lamp holder protrudes from the manhole cover frame 1. At this time, the warning light generated by the warning light 52 inside the lamp holder 51 is emitted, which can provide a good warning effect at night.

[0034] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the upper end of the base 31 is provided with a plurality of threaded holes 35, the positions of the threaded holes 35 correspond one-to-one with the positions of the sliding holes 4, and the threaded holes 35 are threadedly engaged with the threaded mounting block 54.

[0035] In this embodiment, the threaded hole 35 facilitates the installation and fixing of the threaded mounting block 54, which in turn facilitates the fixing of the bottom end of the support spring 53.

[0036] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the outer wall of the warning ring 34 is provided with a reflective warning sticker.

[0037] In this embodiment, by setting up reflective warning stickers, the light emitted by the warning light 52 is reflected at night, so that the warning ring 34 forms a ring of light, which can effectively remind pedestrians of the shape and accurate location of the manhole, thereby achieving the purpose of improving the warning effect.

[0038] In a further preferred embodiment of this utility model, such as Figure 1-5As shown, the lamp holder 51 includes a cylindrical tube 511, the cylindrical tube 511 has several light-transmitting grooves 512 on its wall, a conductive patch 513 is provided at the bottom end of the cylindrical tube 511, and an electrically conductive patch 514 that cooperates with the conductive patch 513 is provided at the bottom end of the manhole cover frame 1 at the edge of the sliding hole 4. An anti-pressure ball 515 is provided at the top end of the lamp holder 51.

[0039] In this embodiment, the anti-pressure ball 515 is used to seal the top of the cylindrical tube 511, and the anti-pressure ball 515 and the cylindrical tube 511 are connected to each other by a threaded connection. When the manhole cover is closed from the open state, the anti-pressure ball 515 reduces the impact on the lamp holder 51 and avoids the lamp holder 51 from deforming due to impact. With the setting of conductive patch 513 and power-conducting patch 514, when the manhole cover is closed, the manhole cover presses the lamp holder 51 downward. At this time, there is a gap between the conductive patch 513 and the power-conducting patch 514. At this time, the warning light 52 inside the lamp holder 51 cannot conduct electricity through the power-conducting patch 514. When the manhole cover is opened, the lamp holder 51 rises, so that the conductive patch 513 and the power-conducting patch 514 come into contact with each other. At this time, the power is conducted to the warning light 52 through the power-conducting patch 514 and the conductive patch 513, so as to make the warning light 52 light up.

[0040] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, a controller is installed inside the manhole cover frame 1. A power supply wire 11 is installed on one side of the controller, which passes through the manhole cover frame 1. The controller is connected to the power-conducting patch 514.

[0041] In this embodiment, the power supply wire 11 passes through the ground and connects to nearby power supply equipment, such as cables, street light cables, etc. Current is supplied to the warning light 52 through the power supply wire 11 and the controller to achieve the warning function. After the warning light 52 is powered on, the information that the manhole cover is open is transmitted to the relevant departments to achieve the purpose of automatic alarm.

[0042] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for alarming the opening of manhole covers, characterized in that, It includes a manhole cover frame (1) and a movable manhole cover (2). The movable manhole cover (2) is connected to the manhole cover frame (1) by a hinge. The inner frame wall of the manhole cover frame (1) is provided with a blocking device (3). Several sliding holes (4) are opened inside the frame wall of the manhole cover frame (1). Several light warning devices (5) are slidably installed inside the sliding holes (4). The blocking device (3) includes a base (31), a guide frame (32) is provided at the top of the base (31), the outer wall of the guide frame (32) is fixedly connected to the inner frame wall of the manhole cover frame (1), a number of guide holes (33) are provided at the position where the guide frame (32) is connected to the manhole cover frame (1), and a pop-out air rod (36) is provided inside the guide hole (33), and a warning ring (34) is provided at the top of the pop-out air rod (36).

2. The device for alarming the opening of a manhole cover according to claim 1, characterized in that, The light warning device (5) includes a lamp holder (51), which is slidably installed inside the sliding hole (4). A warning light (52) is installed inside the lamp holder (51). A support spring (53) is installed at the bottom of the lamp holder (51), and a threaded mounting block (54) is fixedly installed at the bottom of the support spring (53).

3. The device for alarming the opening of a manhole cover according to claim 2, characterized in that, The upper end of the base (31) is provided with several threaded holes (35), the positions of the threaded holes (35) correspond one-to-one with the positions of the sliding holes (4), and the threaded holes (35) are threadedly engaged with the threaded mounting block (54).

4. The device for alarming the opening of a manhole cover according to claim 3, characterized in that, The outer wall of the warning ring (34) is provided with a reflective warning sticker.

5. A device for alarming the opening of a manhole cover according to claim 4, characterized in that, The lamp holder (51) includes a cylindrical tube (511), the cylindrical tube (511) has several light-transmitting grooves (512) on its wall, a conductive patch (513) is provided at the bottom end of the cylindrical tube (511), a power-conducting patch (514) that cooperates with the conductive patch (513) is provided at the bottom end of the manhole cover frame (1) at the edge of the sliding hole (4), and an anti-pressure ball (515) is provided at the top end of the lamp holder (51).

6. A device for alarming the opening of a manhole cover according to claim 5, characterized in that, The manhole cover frame (1) is equipped with a controller inside. A power supply wire (11) is provided on one side of the controller, which passes through the manhole cover frame (1). The controller is connected to the power-conducting patch (514).

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