CN110969791A - Anti-invasion cable well cover and anti-invasion alarm device thereof - Google Patents
Anti-invasion cable well cover and anti-invasion alarm device thereof Download PDFInfo
- Publication number
- CN110969791A CN110969791A CN201911192168.6A CN201911192168A CN110969791A CN 110969791 A CN110969791 A CN 110969791A CN 201911192168 A CN201911192168 A CN 201911192168A CN 110969791 A CN110969791 A CN 110969791A
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- intrusion
- alarm device
- cover body
- invasion
- cable well
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention relates to an anti-invasion cable well cover and an anti-invasion alarm device thereof. The anti-intrusion alarm device is used for carrying out safety monitoring on the anti-intrusion cable well cover. The anti-invasion cable well cover comprises a well ring and a cover body. The anti-intrusion alarm device comprises a support frame, an elastic piece and a vibration sensor which are arranged in the walling crib. The elastic piece is provided with a fixed end and a sliding end which are oppositely arranged. The fixed end is arranged on the supporting frame. When the cover body is in a closed state, the sliding end is abutted against the cover body, and the elastic piece is in a compression energy storage state. The vibration sensor is mounted on the elastic member. From this, the setting of elastic component can amplify the vibration signal that illegal invasion produced to make vibration sensor can in time, effectively and accurately sense this vibration signal, and then make prevent invading alarm device and can send the warning suggestion in the shortest time consequently, above-mentioned prevent invading alarm device's warning timeliness is better, has improved the security of preventing invading cable well lid effectively.
Description
Technical Field
The invention relates to the technical field of optical fiber sensing, in particular to an anti-intrusion cable well cover and an anti-intrusion alarm device thereof.
Background
The cable trench and the cables laid in the cable trench are indispensable infrastructures in urban construction, and the cable trench is mainly used for placing and protecting the cables. The environment in the cable trench is related to the safe operation of the cable and the damage degree of the cable fault, such as the loss of the cable well cover, the injury of personnel safety, the invasion of illegal personnel into the cable trench, the theft of power cables and the like.
In order to safely monitor the environment in a cable channel, an anti-intrusion alarm device is usually installed at the position of a cable well cover, so that various traveling positions threatening the safety of a pipeline can be conveniently monitored and early warned, and pipeline maintenance personnel can flow out enough time to prevent damage or strengthen precaution.
However, for some vibration signals with smaller vibration ratio, the traditional anti-intrusion alarm device cannot sense timely, effectively and accurately, so that an intrusion behavior occurs for a period of time, and the anti-intrusion alarm device cannot sense enough vibration signals to perform safety alarm, so that the safety of the anti-intrusion cable well cover is not high.
Disclosure of Invention
Therefore, it is necessary to provide an anti-intrusion cable well cover with high safety and an intrusion alarm device for the anti-intrusion cable well cover, aiming at the problem that the traditional anti-intrusion cable well cover is not high in safety.
The utility model provides an prevent invading alarm device for carry out safety monitoring to preventing invading cable well lid, prevent invading cable well lid and include walling crib and lid, include:
the supporting frame is arranged in the walling crib;
the elastic piece is provided with a fixed end and a sliding end which are oppositely arranged, the fixed end is arranged on the support frame, and when the cover body is in a closed state, the sliding end is abutted against the cover body, so that the elastic piece is in a compression energy storage state; and
and the vibration sensor is arranged on the elastic piece.
In one embodiment, the resilient member is a spring.
In one embodiment, the vibration sensor is a detection fiber, and the detection fiber extends along the spiral direction of the spring.
In one embodiment, the elastic member is a metal spring.
In one embodiment, the friction factor of the sliding end is less than the friction factor of the fixed end.
In one embodiment, the sliding end is provided with a rotatable ball.
In one embodiment, the support frame comprises a first mounting part and a second mounting part which are arranged at intervals; the number of the elastic pieces and the number of the vibration sensors are two, and the two elastic pieces are respectively arranged on the first installation part and the second installation part; two the vibration sensor install respectively in two on the elastic component, prevent intrusion alarm device still includes monitor terminal, monitor terminal respectively with two the vibration sensor communication is connected.
In one embodiment, the first mounting part is a first supporting rod, the second mounting part is a second supporting rod, the supporting frame further comprises a mounting rod, and one end of the mounting rod is connected with the first supporting rod and the second supporting rod respectively, so that the supporting frame is Y-shaped.
In one embodiment, the fixed end is detachably mounted on the support frame.
An anti-intrusion cable manhole cover comprising:
a well ring;
the cover body is rotatably arranged on the manhole ring; and
prevent intrusion alert device, the support frame install in the inner wall of walling crib, when the lid is in the closed condition, the elastic component the slip end with the well lid butt makes the elastic component is in compression energy storage state.
Above-mentioned prevent invading cable well lid and prevent invading alarm device, when taking place illegal invasion, the lid will be opened gradually. As the opening degree of the cover body is increased, the restoring force of the elastic piece is gradually reduced in the proportion of component forces in the direction vertical to the cover body and the direction parallel to the cover body. Once the parallel component force is greater than the friction force between the sliding end and the cover body, the sliding end will slide rapidly along the surface of the cover body until the cover body and the elastic piece are completely separated. At this time, the elastic member rapidly releases its stored energy and generates a strong vibration signal to amplify the vibration signal generated during the opening of the cover. From this, the setting of elastic component can amplify the vibration signal that illegal invasion produced to make vibration sensor can in time, effectively and accurately sense this vibration signal, and then make prevent invading alarm device and can send the warning suggestion in the shortest time consequently, above-mentioned prevent invading alarm device's warning timeliness is better, has improved the security of preventing invading cable well lid effectively.
Drawings
FIG. 1 is a schematic view of an intrusion alarm device according to a preferred embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present, unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or one or more intervening elements may also be present.
Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.
Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.
Referring to fig. 1, the present invention provides an anti-intrusion cable well cover 10 and an anti-intrusion alarm device 300 thereof. The anti-invasion cable well lid 10 comprises a well ring 100, a lid body 200 and an anti-invasion alarm device 300.
An anti-intrusion alert device 300 is installed within the wellhead 100. And the grommets 100 are installed in the inner well of the cable trench. The cover 200 is rotatably mounted to the collar 100. The intrusion prevention alarm device 300 is mainly used for amplifying and processing the vibration generated by illegal intrusion and then sending out an alarm prompt. The anti-intrusion alarm device 300 can be used for monitoring cable channels and can also be used for monitoring security places surrounded by peripheries such as wire netting and underground nets. In the actual use process, the anti-intrusion alarm device 300 can be used for monitoring the vibration condition of the cable channel, the wire netting or the buried net and other shields, discovering the behavior of illegal intrusion or trying to illegally intrude the cable channel or the security and protection place in time, and improving the safety protection capability of the cable or the security and protection place and the like. In the present embodiment, the intrusion prevention alarm device 300 is applied to a cable trench, and a cable well lid is monitored.
The intrusion prevention alarm device 300 according to the preferred embodiment of the present invention includes a support bracket 310, an elastic member 320, and a vibration sensor 330.
A support bracket 310 is mounted within the lost motion collar 100. Specifically, the collar 100 is mounted to the wall of the well within the cable. Thus, the intrusion prevention alarm device 300 is installed in the well ring 100 of the intrusion prevention cable well cover 10. The supporting frame 310 mainly plays a role of connection and support. Generally, the support frame 310 is made of a material with a relatively high strength, such as stainless steel or alloy steel, so that the support frame 310 has a relatively high bearing capacity.
The elastic member 320 has a fixed end 321 and a sliding end 322 opposite to each other. The fixed end 321 is mounted on the supporting frame 310. When the cover 200 is in the closed state, the sliding end 322 abuts against the cover 200 and causes the elastic member 320 to be in a compressed energy storage state. The elastic member 320 is gradually opened when an illegal intrusion occurs during an actual use process, and the cover body 200 is opened. As the opening degree of the cover body 200 increases, the restoring force of the elastic member 320 gradually decreases in the ratio of the component forces in the direction perpendicular to the cover body 200 and the direction parallel to the cover body 200. Once the parallel force component is greater than the friction force between the sliding end 322 and the cover body 200, the sliding end 322 will slide along the surface of the cover body 200 quickly until the cover body 200 is completely separated from the elastic member 320. At this time, the elastic member 320 rapidly releases its stored energy and generates a strong vibration signal to amplify the vibration signal generated during the opening of the cover body 200.
The vibration sensor 330 is mounted on the elastic member 320. The vibration sensor 330 is used for sensing the vibration signal generated by the elastic member 320, and the intrusion prevention vibration device 300 gives an alarm according to the vibration signal.
Therefore, the elastic member 320 is arranged to amplify the vibration signal generated during illegal intrusion, so that the vibration sensor 330 can timely, effectively and accurately sense the vibration signal, and the anti-intrusion alarm device 300 can send out an alarm prompt in a short time, so that the alarm timeliness of the anti-intrusion alarm device 300 is good due to the arrangement of the elastic member 320, and the safety of the anti-intrusion cable well lid 10 is effectively improved.
Specifically, in some embodiments, the resilient member 320 is a spring. When the anti-invasion cable well lid 10 is in a closed state, the spring is compressed between the lid body 200 and the support frame 310, so that the spring stores energy; in the process that the anti-invasion cable well lid 10 is illegally opened, the spring starts to reset until the cover body 200 is completely separated from the spring, and at the moment, the spring releases energy and generates vibration with a larger amplitude, so that the vibration signal generated by the cover body 200 is amplified. Moreover, since the spring is a standard component, the processing cost is low, so the processing cost of the elastic member 320 is also low.
More specifically, the vibration sensor 330 is a detection fiber. The detection fiber extends along the spiral direction of the spring. When the elastic member 320 applies the amplified vibration signal to the detection fiber, a photo-elastic effect is generated, which causes a change in the refractive index of the fiber and thus a change in the phase of the light wave, so as to convert the vibration signal into an optical signal. Compared with other forms of signal transmission, the timeliness and effectiveness of optical signal transmission are both the best, so that the vibration sensor 330 is set as a detection optical fiber, and the alarm timeliness of the anti-intrusion alarm device 300 is further improved.
In other embodiments, the elastic member 320 is a metal spring. The metal elastic sheet is a very thin metal sheet. When the anti-invasion cable well lid 10 is closed, the metal elastic sheet is abutted against the lid body 200, and the metal elastic sheet is bent and deformed under the action of the lid body 200, so that energy storage is realized; in the process that the anti-intrusion cable well lid 10 is illegally opened, the metal elastic sheet starts to reset until the cover body 200 completely leaves the metal elastic sheet, the metal elastic sheet releases energy and generates vibration with a larger amplitude, and therefore amplification of a vibration signal generated by the cover body 200 is achieved.
In the present embodiment, the fixing end 321 is detachably mounted on the supporting frame 310. The detachable installation mode makes the assembly and disassembly of the elastic member 320 on the supporting frame 310 more convenient. After long-time use, the elastic member 320 is very easy to be degraded in working performance and damaged, and at the moment, the working reliability of the anti-intrusion alarm device 300 can be ensured and the use cost can be reduced only by detaching the elastic member 320 from the support frame 310 and replacing the new elastic member 320.
In the present embodiment, the friction factor of the sliding end 322 is smaller than that of the fixed end 321. Specifically, the surface roughness of the end of the sliding end 322 is less than the surface roughness of the end of the fixed end 321, or the sliding end 322 is provided with a structure having a friction factor less than that of the elastic member 200. Thereby, the sliding speed of the sliding end 322 on the surface of the cover body 200 is faster. When an illegal intrusion occurs, the sliding end 322 slides more rapidly on the surface of the cover body 200 as the opening degree of the cover body 200 increases until the cover body 200 is completely separated from the elastic member 320, at which time the elastic member 200 rapidly releases its stored energy and generates a strong vibration signal. Therefore, the friction factor of the sliding end 322 is set to be smaller than that of the fixing end 321, so that the elastic member 200 can amplify the vibration signal generated during the opening process of the cover body 200 in a shorter time, and the alarm timeliness of the intrusion prevention alarm device 300 is further improved.
In this embodiment, the sliding end 322 is provided with a rotatable ball (not shown). Specifically, when the lid body 200 is in the closed state, the sliding end 322 abuts against the lid body 200 via a ball. When illegal intrusion occurs, along with the increase of the opening degree of the cover body 200, the balls arranged at the sliding end 322 roll rapidly on the surface of the cover body 200, increasing the sliding speed of the sliding end 322 on the cover body 200, further shortening the amplification time of the vibration signal generated in the opening process of the cover body 200 by the elastic member 200, and further improving the alarm timeliness of the anti-intrusion alarm device 300.
In the present embodiment, the supporting frame 310 includes a first mounting portion 311 and a second mounting portion 312 that are disposed at an interval. The supporting frame 310 may be a support structure in a shape of U, Y, X, or the like, or may be a structure composed of a supporting plate and two mounting points disposed on the supporting plate. The elastic member 320 and the vibration sensor 330 are two. The two elastic members 320 are respectively mounted on the first mounting portion 311 and the second mounting portion 312. Two vibration sensors 330 are respectively mounted on the two elastic members 320. The intrusion alert device 300 further includes a monitoring terminal (not shown). The monitoring terminal is respectively connected with the two vibration sensors 330 in a communication way.
In the actual use process, the cover body 200 vibrates due to illegal intrusion, the two elastic members 320 amplify the vibration signal and then respectively transmit the amplified vibration signal to the two vibration sensors 330, the two vibration sensors 330 respectively process the vibration signal and transmit the processed two vibration signals to the monitoring terminal from two different directions, and the monitoring terminal can judge the specific position of the vibration event according to the arrival time difference of the two vibration signals. Therefore, the two vibration sensors 330 are provided, and the illegal invasion site can be positioned.
Further, in the present embodiment, the first mounting portion 311 is a first support rod, and the second mounting portion 312 is a second support rod. The support bracket 310 also includes a mounting bar 313. One end of the mounting rod 313 is connected to the first support rod and the second support rod, respectively, so that the support frame 310 is Y-shaped. In actual use, the installation of the intrusion alert device 300 at the monitoring site is accomplished by installing the installation rod 313 within the well casing 100. Specifically, the two elastic members 320 are respectively installed at one end of the first support rod away from the installation rod 313 and one end of the second support rod away from the installation rod 313. The support frame 310 is Y-shaped, so that the probability of interference between the support frame 310 and other parts in the cable trench can be reduced, and the anti-intrusion alarm device 300 is simple to use.
Furthermore, in the present embodiment, the first support rod, the second support rod and the mounting rod 313 are all hollow rod-shaped structures. In the actual use process, the support frame 310 is usually suspended in the well ring 100 of the well in the cable trench, and if the support frame 310 is too heavy, the connection part of the support frame 310 and the well ring 100 is prone to be broken. All set up first bracing piece, second bracing piece and installation pole 313 into hollow shaft-like structure for the support frame 310 has alleviateed the quality when guaranteeing use intensity, has reduced the probability that the support frame 310 dropped from well lid 100, has further improved anti-intrusion alarm device 300's reliability.
Further, in this embodiment, the supporting frame 310 further includes a connecting cross bar 314. One end of the connecting cross bar 314 is fixedly connected with the mounting bar 313. In actual use, one end of the connecting cross rod 314 far away from the mounting rod 313 is connected with the inner wall of the well ring 100 to mount the support frame 310 in the anti-invasion cable well lid 10. Therefore, the arrangement of the connecting cross bar 314 enables the supporting frame 310 to be suspended relative to the inner wall of the walling crib 200, so that the situation that the elastic element 320 is directly contacted with the inner wall of the walling crib 200 to influence the operation of the elastic element 320 can be avoided.
The anti-invasion cable well lid 10 and the anti-invasion alarm device 300 thereof are provided. When an illegal intrusion occurs, the cover body 200 is gradually opened. As the opening degree of the cover body 200 increases, the restoring force of the elastic member 320 gradually decreases in the ratio of the component forces in the direction perpendicular to the cover body 200 and the direction parallel to the cover body 200. Once the parallel force component is greater than the friction force between the sliding end 322 and the cover body 200, the sliding end 322 will slide along the surface of the cover body 200 quickly until the cover body 200 is completely separated from the elastic member 320. At this time, the elastic member 320 rapidly releases its stored energy and generates a strong vibration signal to amplify the vibration signal generated during the opening of the cover body 200. Therefore, the elastic member 320 can amplify the vibration signal generated by illegal intrusion, so that the vibration sensor 330 can timely, effectively and accurately sense the vibration signal, and the anti-intrusion alarm device 300 can send out an alarm prompt in the shortest time. Therefore, the alarm timeliness of the anti-intrusion alarm device 300 is good, and the safety of the anti-intrusion cable well lid 10 is effectively improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an anti-intrusion alarm device for carry out safety monitoring to anti-intrusion cable well lid, anti-intrusion cable well lid includes walling crib and lid, its characterized in that includes:
the supporting frame is arranged in the walling crib;
the elastic piece is provided with a fixed end and a sliding end which are oppositely arranged, the fixed end is arranged on the support frame, and when the cover body is in a closed state, the sliding end is abutted against the cover body, so that the elastic piece is in a compression energy storage state; and
and the vibration sensor is arranged on the elastic piece.
2. The intrusion prevention alert device of claim 1 wherein the resilient member is a spring.
3. The intrusion prevention alert device of claim 2 wherein the vibration sensor is a detection fiber and the detection fiber extends in the direction of the spiral of the spring.
4. The intrusion prevention alert device of claim 1 wherein the resilient member is a metal dome.
5. The intrusion prevention alert device of claim 1 wherein the friction factor of the sliding end is less than the friction factor of the fixed end.
6. An intrusion prevention alarm device according to claim 1 wherein the sliding end is provided with a rotatable ball bearing.
7. The intrusion prevention warning device of claim 1 wherein the support bracket includes first and second spaced apart mounting portions; the number of the elastic pieces and the number of the vibration sensors are two, and the two elastic pieces are respectively arranged on the first installation part and the second installation part; two the vibration sensor install respectively in two on the elastic component, prevent intrusion alarm device still includes monitor terminal, monitor terminal respectively with two the vibration sensor communication is connected.
8. The intrusion prevention alarm device of claim 7, wherein the first mounting portion is a first support bar, the second mounting portion is a second support bar, the support frame further comprises a mounting bar, one end of the mounting bar is connected with the first support bar and the second support bar respectively, so that the support frame is Y-shaped.
9. The intrusion prevention alert device of claim 1 wherein the fixed end is removably mounted to the support bracket.
10. An anti-intrusion cable well cover, comprising:
a well ring;
the cover body is rotatably arranged on the manhole ring; and
an intrusion prevention alarm device according to any one of claims 1 to 9 wherein the support is mounted to the inner wall of the walling crib and the sliding end of the resilient member abuts the manhole cover when the cover is in the closed position and causes the resilient member to be in a compressed energy storage state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192168.6A CN110969791A (en) | 2019-11-28 | 2019-11-28 | Anti-invasion cable well cover and anti-invasion alarm device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192168.6A CN110969791A (en) | 2019-11-28 | 2019-11-28 | Anti-invasion cable well cover and anti-invasion alarm device thereof |
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| Publication Number | Publication Date |
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| CN110969791A true CN110969791A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911192168.6A Pending CN110969791A (en) | 2019-11-28 | 2019-11-28 | Anti-invasion cable well cover and anti-invasion alarm device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113034824A (en) * | 2021-03-04 | 2021-06-25 | 南京君酷网络科技有限公司 | Management method and device for database in cloud computing system |
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| CN205038737U (en) * | 2015-10-28 | 2016-02-17 | 贾波 | Alarm system is prevented invading by city pipe network based on optical fiber sensing |
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| CN102217184A (en) * | 2008-09-29 | 2011-10-12 | 马来西亚微电子系统有限公司 | A device for maximum detection of vibrating energy for harvesting energy |
| CN201749538U (en) * | 2010-07-19 | 2011-02-16 | 重庆华渝电气仪表总厂 | Alarm device with vibration sensor |
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