Alarm device for installation of lower cover of cover channel
By installing components such as rainproof baffles, photosensitive switches, and positioning chips in the alarm device installed under the manhole cover, the problem of easy theft of manhole covers is solved, achieving anti-theft and easy locating of manhole covers, and improving safety and alarm reliability.
Patent Information
- Application Number
- CN202422964002.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The design of existing manhole covers makes them easy to steal, leading to safety hazards. The security and protection of existing photoelectric sensor-separated alarm devices are also inadequate.
An alarm device for installation under a cover was designed, including a lithium battery mounting compartment, a connecting column sleeve, a warning light mounting rod, and an audible and visual warning light. It is equipped with components such as a rainproof baffle, a photosensitive switch, and a positioning chip post to ensure the protection and positioning effect of the device. The alarm function is achieved by being powered by a lithium battery.
It improves the anti-theft properties of manhole covers and makes them easier to find if lost, reduces the impact of rainwater on the equipment, and ensures the reliability and safety of the alarm function.
Smart Images

Figure CN223842467U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of alarm equipment technology, and relates to alarm equipment installed under the cover of a tunnel. Background Technology
[0002] As is well known, manhole covers are mostly used to lay on road surfaces and cover the exits of various underground passages such as drainage pipes, cable pipes, and gas pipes to prevent people or objects from falling in and to ensure the safety of life and property. However, most manhole covers are designed with a separate installation structure, and the disadvantage of this split design is that they are easily stolen. Once a manhole cover is stolen, lost, damaged, or removed, it will create certain safety hazards. Existing technology, such as patent number CN201711250746.8, provides a special anti-loss alarm manhole cover for underground cable pipe passages in factory and enterprise parks. A photoelectric sensor-based separation alarm is installed on the inner wall of the lower base near the hinge. Once the upper cover is opened or lost, the alarm senses a weak light and emits an alarm and a red light alarm signal, which can effectively prevent the risk of people or objects falling in and improve safety. However, the safety and actual protective effect of this photoelectric sensor-based separation alarm are not ideal. Therefore, we have designed an alarm device installed on the lower cover of the manhole cover. Summary of the Invention
[0003] The purpose of this utility model is to provide an alarm device for installation under the cover of a tunnel, so as to solve the problems mentioned in the background art.
[0004] The objective of this utility model can be achieved through the following technical solution: An alarm device is installed under the cover of the enclosure, including a lithium battery mounting compartment, a connecting sleeve, a warning light mounting rod, and an audible and visual warning light. One end of the warning light mounting rod is plugged into and connected to the audible and visual warning light. A rainproof baffle is provided at the top of the audible and visual warning light, and a mounting slot is provided at the center of the rainproof baffle. A photosensitive switch connected to the audible and visual warning light is installed inside the mounting slot. The other end of the warning light mounting rod is inserted into the interior of the connecting sleeve. An electrode rod is provided in the middle of the bottom end of the connecting sleeve. One end of the electrode rod passes through the hole in the warning light mounting rod and is connected to the circuit of the audible and visual warning light. An electrode connector is provided at the other end of the electrode rod. An electrode connecting sleeve is provided at the center of the top of the lithium battery mounting compartment. The electrode rod is connected to the electrode connecting sleeve through the electrode connector, enabling the audible and visual warning light to connect to the built-in lithium battery power supply of the lithium battery mounting compartment.
[0005] In the aforementioned alarm device installed under the cover, a positioning chip post is provided at the bottom edge of the rainproof baffle, and a positioning chip is provided at the bottom of the positioning chip post.
[0006] In the aforementioned alarm device installed under the cover, the bottom of the audible and visual warning light is provided with an insulating protective base, which corresponds to the insertion part of the warning light mounting rod and the audible and visual warning light.
[0007] In the aforementioned alarm device installed under the cover, the outer ring of the audible and visual warning light is provided with multiple sound-emitting holes.
[0008] In the aforementioned alarm device installed under the cover, a protective cover is installed at the bottom of the connecting column sleeve. The protective cover is connected to the lithium battery installation compartment and covers the electrode connecting sleeve.
[0009] In the aforementioned alarm device installed under the cover, a snap-fit limiting groove is provided on one side of the lithium battery installation compartment, and a bolt positioning hole is provided at the top of the snap-fit limiting groove.
[0010] Compared with the prior art, the advantages of the alarm device installed under the cover of this utility model are as follows: by setting a rainproof baffle on the top of the audible and visual warning light, and opening an installation slot in the center of the rainproof baffle, a photosensitive switch connected to the audible and visual warning light is installed inside the installation slot. The rainproof baffle can play a good protective role and reduce the impact of rainwater on the audible and visual warning light. At the same time, the positioning chip post and positioning chip are set to ensure a good positioning effect and facilitate the search after loss. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the alarm device installed under the cover of the utility model.
[0012] Figure 2 This is a schematic diagram of the structure of the electrode rod for installing the alarm device on the underside of the cover of this utility model.
[0013] Figure 3 This is a schematic diagram of the positioning chip post of the alarm device installed under the cover of the utility model.
[0014] In the diagram: 1. Lithium battery mounting compartment; 2. Connecting post sleeve; 3. Warning light mounting rod; 4. Insulating protection seat; 5. Audible and visual warning light; 6. Rainproof baffle; 7. Mounting bayonet; 8. Photosensitive switch; 9. Protective fitting cover; 10. Electrode rod; 11. Electrode connector; 12. Electrode connecting sleeve; 13. Snap-fit limiting groove; 14. Bolt positioning hole; 15. Speaker through hole; 16. Positioning chip post; 17. Positioning chip. Detailed Implementation
[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0016] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model includes an alarm device installed on the lower cover of the tunnel.
[0017] Example 1: The alarm device includes a lithium battery mounting compartment 1, a connecting sleeve 2, a warning light mounting rod 3, and an audible and visual warning light 5. One end of the warning light mounting rod 3 is plugged into the audible and visual warning light 5. A rainproof baffle 6 is provided at the top of the audible and visual warning light 5. A mounting slot 7 is provided at the center of the rainproof baffle 6. A photosensitive switch 8 connected to the audible and visual warning light 5 is installed inside the mounting slot 7. The other end of the warning light mounting rod 3 is inserted into the inside of the connecting sleeve 2. An electrode rod 10 is provided at the middle of the bottom end of the connecting sleeve 2. One end of the electrode rod 10 passes through the hole of the warning light mounting rod 3 and is connected to the circuit of the audible and visual warning light 5. An electrode connector 11 is provided at the other end of the electrode rod 10. An electrode connecting sleeve 12 is provided at the center of the top of the lithium battery mounting compartment 1. The electrode rod 10 is connected to the electrode connecting sleeve 12 through the electrode connector 11 so that the audible and visual warning light 5 is connected to the built-in lithium battery power supply of the lithium battery mounting compartment 1.
[0018] The solution provides good protection through the rainproof baffle 6, reducing the impact of rainwater on the audible and visual warning lights.
[0019] Furthermore, in order to better install it onto the bottom cover of the manhole cover and ensure the secure connection of the audible and visual warning light 5, a snap-fit limiting groove 13 is provided on one side of the lithium battery installation compartment 1, and a bolt positioning hole 14 is provided at the top of the snap-fit limiting groove 13.
[0020] Example 2: To ensure good positioning effect and quickly find the lost location after loss, a positioning chip post 16 is provided at the bottom edge of the rainproof baffle 6, and a positioning chip 17 is provided at the bottom of the positioning chip post 16.
[0021] Furthermore, based on Embodiment 1, to better protect the connection point between the warning light mounting rod 3 and the audible and visual warning light 5 and prevent open circuits, and also to protect the electrode rod 10 and the electrode connecting sleeve 12, an insulating protective seat 4 is not only provided at the bottom of the audible and visual warning light 5, corresponding to the connection point between the warning light mounting rod 3 and the audible and visual warning light 5, but also a protective fitting cover 9 is installed at the bottom of the connecting sleeve 2. The protective fitting cover 9 is connected to the lithium battery mounting compartment 1 and covers the electrode connecting sleeve 12.
[0022] Furthermore, based on Embodiment 1, in order to better propagate the warning sound of the audible and visual warning light 5, a plurality of sound-emitting through holes 15 are provided on the outer ring of the audible and visual warning light 5.
[0023] In use: Two holes are made in the lower part of the manhole cover. The distance between the two holes is equal to the distance between the bolt positioning hole 14 and the electrode connecting sleeve 12. The lithium battery installation compartment 1 is installed at the bottom of the lower part of the manhole cover. The electrode connecting sleeve 12 passes through the hole and is connected to the electrode connector 11 of the electrode rod 10. The other hole is connected to the bolt positioning hole 14 by bolts to achieve a tight connection. This solution can achieve a good protective effect through the rainproof baffle 6, reducing the impact of rainwater on the sound and light warning lights. At the same time, the positioning chip post 16 and the positioning chip 17 are set to ensure a good positioning effect and facilitate retrieval after loss.
[0024] The contents of the manhole cover and its lower cover not described in detail in this specification belong to the prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. An alarm device installed on the underside of a cover, comprising a lithium battery mounting compartment (1), a connecting column sleeve (2), a warning light mounting rod (3), and an audible and visual warning light (5), characterized in that, One end of the warning light mounting rod (3) is plugged into the sound and light warning light (5). The top of the sound and light warning light (5) is provided with a rainproof baffle (6). The center of the rainproof baffle (6) is provided with a mounting slot (7). The inside of the mounting slot (7) is a photosensitive switch (8) connected to the sound and light warning light (5). The other end of the warning light mounting rod (3) is inserted into the inside of the connecting sleeve (2). The middle of the bottom end of the connecting sleeve (2) is provided with an electrode rod (10). One end of the electrode rod (10) passes through the hole of the warning light mounting rod (3) and is connected to the circuit of the sound and light warning light (5). The other end of the electrode rod (10) is provided with an electrode connector (11). The center of the top of the lithium battery installation compartment (1) is provided with an electrode connecting sleeve (12). The electrode rod (10) is connected to the electrode connecting sleeve (12) through the electrode connector (11) so that the sound and light warning light (5) connects to the built-in lithium battery power supply of the lithium battery installation compartment (1).
2. The alarm device installed under the cover of the tunnel according to claim 1, characterized in that, A positioning chip post (16) is provided at the bottom edge of the rainproof baffle (6), and a positioning chip (17) is provided at the bottom of the positioning chip post (16).
3. The alarm device installed under the cover of the tunnel according to claim 1, characterized in that, An insulating protective seat (4) is provided at the bottom of the audible and visual warning light (5), and the insulating protective seat (4) corresponds to the insertion part of the warning light mounting rod (3) and the audible and visual warning light (5).
4. The alarm device installed under the cover of the tunnel according to claim 1, characterized in that, The outer ring of the audible and visual warning light (5) is provided with multiple sound-emitting holes (15).
5. The alarm device installed under the cover of the tunnel according to claim 1, characterized in that, The bottom end of the connecting sleeve (2) is equipped with a protective fitting cover (9), which is connected to the lithium battery mounting compartment (1) and covers the electrode connecting sleeve (12).
6. The alarm device installed under the cover of the tunnel according to claim 1, characterized in that, The lithium battery mounting compartment (1) is provided with a snap-fit limiting groove (13) on one side, and a bolt positioning hole (14) is provided at the top of the snap-fit limiting groove (13).
Citation Information
Patent Citations
Special anti-lost alarm manhole cover for underground cable pipeline passage of factory enterprise zone
CN109868840A