CN110942575B

CN110942575B - Alarm device

Info

Publication number: CN110942575B
Application number: CN201911011208.2A
Authority: CN
Inventors: 陈子涵; 皮昊书; 时亨通; 饶伟云; 马楠; 彭毅; 吴中; 宋书生; 陈晨; 齐翰博; 叶枫舒; 夏金凯
Original assignee: Shenzhen Power Supply Bureau Co Ltd
Current assignee: Shenzhen Power Supply Bureau Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2021-04-06
Anticipated expiration: 2039-10-23
Also published as: CN110942575A

Abstract

The invention discloses an alarm device, which is used for optical fiber anti-theft alarm and comprises: the trigger assembly comprises a base with an accommodating cavity, an elastic piece arranged in the accommodating cavity, a trigger assembly which is matched with the elastic piece and can move, and a guide assembly used for guiding the trigger assembly; the base with all be equipped with the portion of wearing to establish that is used for wearing to establish optic fibre on the elastic component. The alarm device can amplify the vibration signal in a strengthening way and transmit the vibration signal to the optical fiber, so that the system can sense the vibration signal and perform early warning and alarming in time at the early stage of invasion, and the protection object is protected powerfully.

Description

Alarm device

Technical Field

The invention relates to the field of theft prevention, in particular to an alarm device.

Background

Along with the increase of the urbanization scale and the acceleration of the construction speed, the construction of corresponding urban affiliated facilities is also developed rapidly, the power cable power supply network is also developed rapidly, and the underground power supply network with large scale has numerous cables. However, some illegal persons directly aim the theft target at the power equipment and the power transmission and distribution main line cable in operation, and the normal order of property safety and production and management of enterprises is directly damaged. The traditional anti-theft alarm method is characterized in that armored optical fibers are buried along the periphery of a protector, when an intruder intrudes to generate vibration, the optical fibers perform intrusion judgment through vibration signals transmitted by soil, but the soil, a protective sleeve for protecting the optical fibers and the like weaken the vibration signals, so that intrusion alarm cannot be timely and accurately sent out, the intruder often needs to be close to the protector or touch the optical fibers to send out alarm, the alarm is delayed, and the protector is not protected.

Disclosure of Invention

Based on the above, the invention provides an alarm device, which overcomes the defects that in the prior art, in the positioning and monitoring technology of the optical fiber cable channel in the channel, the optical fiber cannot sense enough vibration signals in time, so that intrusion alarm cannot be timely and accurately sent out, an intruder often needs to be close to a protective object or touch the optical fiber to send out alarm, alarm is delayed, and the protective object is not protected.

The technical scheme is as follows:

an alarm device for a fiber optic burglar alarm, comprising: the trigger assembly comprises a base with an accommodating cavity, an elastic piece arranged in the accommodating cavity, a trigger assembly which is matched with the elastic piece and can move, and a guide assembly used for guiding the trigger assembly; the base with all be equipped with the portion of wearing to establish that is used for wearing to establish optic fibre on the elastic component.

This technical scheme's alarm device is when using, wear to locate base and elastic component in the portion of wearing to establish with optic fibre, and will trigger the subassembly and be connected with the well lid, when the well lid is closed, trigger the subassembly along the direction extrusion elastic component of direction subassembly, make the elastic component produce deformation savings energy, when the intruder opens the well lid, the subassembly that triggers that is connected with the well lid is drawn together equally, lose the squeezing action to the elastic component, after the well lid is lifted to certain degree, the elastic component begins to reset, release energy produces the vibration and conducts to optic fibre and trigger the subassembly with the vibration, trigger the subassembly and produce the vibration and further amplify vibration signal to optic fibre. Therefore, when the intrusion event occurs, the alarm device can strengthen and amplify the vibration signal and transmit the vibration signal to the optical fiber according to the vibration signals such as mechanical vibration and impact quantity, so that the purposes that the system can sense the vibration signal and early warn and alarm in time in the early stage of the intrusion event are achieved, and the protective object is protected powerfully.

In one embodiment, one end of the elastic element is connected with the base, and the other end of the elastic element is connected with the trigger assembly.

In one embodiment, the triggering assembly comprises a gravity hammer connected with the elastic member and a transmission member for driving the gravity hammer to compress the elastic member; the guide assembly guides at least the transmission member.

In one embodiment, the gravity weight, the transmission member and the elastic member are coaxially disposed.

In one embodiment, the guide assembly is disposed on the base, the guide assembly includes a first guide portion having a first guide channel, and the transmission member is disposed in the first guide channel.

In one embodiment, the transmission part comprises a transmission shaft penetrating through the first guide channel, and a limiting rod vertically connected with the transmission shaft and used for limiting the transmission shaft; the limiting rod is located outside the first guide channel, and the rod length of the limiting rod is larger than the inner diameter of the first guide channel.

In one embodiment, the guide assembly further includes a second guide portion connected to the first guide portion and provided with a second guide channel, the second guide channel is communicated with the first guide channel, and the gravity hammer is in plug-in fit with the second guide channel.

In one embodiment, the gravity hammer comprises a connecting part connected with the elastic part and an inserting part connected with the connecting part and matched with the second guide channel; the outer diameter of the connecting portion is larger than the inner diameter of the second guide passage.

In one embodiment, the second guide part is a rubber tube; or the second guide part comprises a first rubber strip and a second rubber strip which are arranged at intervals and form a second guide channel; the second guide channel is in interference fit with the gravity hammer.

In one embodiment, the elastic member is a return spring.

Drawings

FIG. 1 is a schematic view of an alarm device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an alarm device according to an embodiment of the present invention.

Description of reference numerals:

10. a base; 20. an elastic member; 30. a trigger component; 31. a gravity hammer; 311. a connecting portion; 312. a plug-in part; 32. a transmission member; 321. a drive shaft; 322. a limiting rod; 323. a steel ball; 40. a guide assembly; 41. a first guide portion; 412. a first fixing frame; 413. a second fixing frame; 42. a second guide portion; 422. a first rubber strip; 423. a second rubber strip; 50. an optical fiber; 60. a well cover is provided.

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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

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 herein in the description of the invention 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.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

An alarm device as shown in fig. 1-2, for use in an optical fiber 50 burglar alarm, comprising: the trigger device comprises a base 10 with a containing cavity, an elastic member 20 arranged in the containing cavity, a trigger assembly 30 which is matched with the elastic member 20 and can move, and a guide assembly 40 for guiding the trigger assembly 30; the base 10 and the elastic member 20 are provided with penetrating portions for penetrating the optical fibers 50.

When the alarm device of the embodiment is used, the optical fiber 50 is arranged in the penetrating parts of the base 10 and the elastic part 20 in a penetrating way, the triggering component 30 is connected with the well lid 60, and when the well lid 60 is closed, the triggering component 30 extrudes the elastic part 20 along the guide of the guide component 40, so that the elastic part 20 generates deformation to store energy; when the manhole cover 60 is opened by an intruder, the triggering component 30 connected with the manhole cover 60 is also lifted up and loses the squeezing effect on the elastic member 20, after the manhole cover 60 is lifted to a certain degree, the elastic member 20 starts to reset, energy is released to generate vibration and the vibration is transmitted to the optical fiber 50 and the triggering component 30, and the triggering component 30 generates vibration to further amplify the vibration signal to the optical fiber 50. The guide assembly 40 prevents the transmission member 32 from shaking during movement, thereby affecting the force transmission effect. Therefore, when the intrusion event occurs, the vibration signals such as mechanical vibration and impact quantity can be amplified intensively by the alarm device of the embodiment and transmitted to the optical fiber 50, so that the purposes that the system can sense the vibration signals and perform early warning and alarming in time at the early stage of the intrusion event are achieved, and the protective object is protected powerfully.

In this embodiment, one end of the elastic member 20 is connected to the base 10, and the other end is connected to the trigger assembly 30. In particular, one end of said elastic element 20 is connected to the bottom of the housing chamber.

The triggering assembly 30 of the present embodiment includes a gravity weight 31 connected to the elastic member 20, and a transmission member 32 for driving the gravity weight 31 to compress the elastic member 20; the guide assembly 40 guides at least the transmission member 32. The end of the transmission member 32, which is far away from the gravity hammer 31, is connected with the well lid 60, when the well lid 60 is closed, the transmission member 32 moves towards the gravity hammer 31 and pushes against the gravity hammer 31 under the action of the force of the well lid 60 and the guiding action of the guiding component 40, and the gravity hammer 31 is stressed and compresses the elastic member 20, so that the elastic member 20 is elastically deformed, and energy is stored. When an intruder opens the well lid 60, the transmission member 32 connected with the well lid 60 is also lifted, the gravity hammer 31 loses the pushing force, so that the squeezing effect on the elastic member 20 is lost, after the well lid 60 is lifted to a certain degree, the elastic member 20 starts to reset, energy is released to generate vibration and the vibration is transmitted to the optical fiber 50 and the gravity hammer 31 connected with the elastic member 20, and the gravity hammer 31 generates vibration to further amplify a vibration signal to the optical fiber 50.

In order to ensure the force transmission function, the gravity weight 31, the transmission member 32 and the elastic member 20 are coaxially disposed in the present embodiment.

In this embodiment, the guiding component 40 is disposed on the base 10, and the guiding component 40 includes a first guiding portion 41 having a first guiding channel, and the transmission member 32 is disposed in the first guiding channel in a penetrating manner. In this embodiment, the first guiding portion 41 includes a first fixing frame 412 and a second fixing frame 413 which are disposed on the base 10 and are matched with the base 10, the first fixing frame 412 and the second fixing frame 413 are disposed at an interval, and a first guiding channel is formed at the interval. In other embodiments, the second guide portion 41 may be a hollow tubular structure provided with a first guide channel.

In this embodiment, the transmission member 32 includes a transmission shaft 321 penetrating through the first guide channel, a limiting rod 322 vertically connected to the transmission shaft 321 and used for limiting the transmission shaft 321, and a steel ball 323 arranged at one end of the transmission shaft 321 and used for pushing the gravity hammer 31; gag lever post 322 is located outside the first direction passageway, just the pole length of gag lever post 321 is greater than the internal diameter of first direction passageway, this embodiment gag lever post 321 perpendicular to transmission shaft 321 sets up to when well lid 60 was covered, transmission shaft 321 moved along first direction passageway's direction of guidance, when elastic component 20 compression energy storage was accomplished, gag lever post 321 was spacing in the tip of first guide part 41, improved the harmony and the stability of product.

The guiding assembly 40 of this embodiment further includes a second guiding portion 42 connected to the first guiding portion 41 and provided with a second guiding channel, the second guiding channel is communicated with the first guiding channel, and the gravity hammer 31 is inserted into and matched with the second guiding channel 31. The second guide channel 31 has a certain positioning and guiding function on the gravity hammer 31, so that the gravity hammer 31 is prevented from shaking in the movement process.

The second guide part 42 of the present embodiment includes a first rubber strip 422 and a second rubber strip 423 that are disposed at an interval and form a second guide passage; the second guide channel is in interference fit with the gravity hammer 31 and is used for increasing the gliding resistance of the gravity hammer 31. In other embodiments, the second guide portion 42 is a rubber tube.

Specifically, the gravity hammer 31 of the present embodiment includes a connecting portion 311 connected to the elastic member 20, and an inserting portion 312 connected to the connecting portion 311 and engaged with the second guide channel, wherein an outer diameter of the connecting portion 311 is larger than an inner diameter of the second guide channel. The insertion part 312 is in interference fit with the second guide channel, and the insertion part 312 is used for receiving the pushing force of the transmission shaft 321 and transmitting the pushing force to the connecting part 311.

The elastic member 20 in this embodiment is a return spring, and in other embodiments, may be a spring plate or other elastic member.

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

1. An alarm device for optical fiber burglar alarm, comprising: the trigger assembly comprises a base with an accommodating cavity, an elastic piece arranged in the accommodating cavity, a trigger assembly which is matched with the elastic piece and can move, and a guide assembly used for guiding the trigger assembly; the base and the elastic piece are respectively provided with a penetrating part for penetrating an optical fiber; the triggering assembly comprises a gravity hammer connected with the elastic piece and a transmission piece used for driving the gravity hammer to compress the elastic piece; the guide assembly at least guides the transmission piece; the guide assembly is arranged on the base and comprises a first guide part provided with a first guide channel, and the transmission part is arranged in the first guide channel in a penetrating manner; the transmission part comprises a transmission shaft penetrating through the first guide channel and a limiting rod which is vertically connected with the transmission shaft and used for limiting the transmission shaft; the limiting rod is located outside the first guide channel, and the rod length of the limiting rod is larger than the inner diameter of the first guide channel.

2. The warning device of claim 1 wherein one end of the resilient member is connected to the base and the other end is connected to the triggering assembly.

3. The warning device of claim 1 wherein the weight, the transmission member and the resilient member are all coaxially disposed.

4. The warning device as claimed in claim 1 wherein the guide assembly further comprises a second guide portion connected to the first guide portion and provided with a second guide channel, the second guide channel being in communication with the first guide channel, and the gravity hammer being in bayonet engagement with the second guide channel.

5. The warning device as claimed in claim 4 wherein the gravity hammer comprises a connecting portion connected to the resilient member and a plug portion connected to the connecting portion and cooperating with the second guide channel; the outer diameter of the connecting portion is larger than the inner diameter of the second guide passage.

6. The warning device of claim 4 wherein the second guide is a rubber tube.

7. The warning device of claim 4, wherein the second guide portion comprises a first rubber strip and a second rubber strip which are arranged at intervals and form a second guide channel; the second guide channel is in interference fit with the gravity hammer.

8. A warning device as claimed in any one of claims 1 to 7 wherein the resilient member is a return spring.