CN201653371U - Digital display displacement alarm device - Google Patents
Digital display displacement alarm device Download PDFInfo
- Publication number
- CN201653371U CN201653371U CN2009203518178U CN200920351817U CN201653371U CN 201653371 U CN201653371 U CN 201653371U CN 2009203518178 U CN2009203518178 U CN 2009203518178U CN 200920351817 U CN200920351817 U CN 200920351817U CN 201653371 U CN201653371 U CN 201653371U
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- digital display
- displacement
- alarm
- digital
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Abstract
The utility model provides a digital display displacement alarm device capable of accurately measuring the deformation and cracking of large buildings, such as large dams. The digital displacement alarm device consists of a measurement system and an alarm system. Using the gravity of a heavy block as the constant tension, the digital display displacement alarm device can display the displacement value on a liquid crystal display screen in a digital manner, and has the advantages of high measurement accuracy (the error is within the range from minus 0.01 mm to plus 0.01 mm) and convenient operation. The digital displacement alarm device can set the displacement alarm value at random, and can send sound-light alarm when the displacement value reaches the set alarm value. A plurality of the digital displacement devices can be assembled together to construct an integral observation network, which can provide scientific decision reference for the commander.
Description
Technical field: the utility model relates to a kind of distortion to big shape buildings, cracking monitoring and warning, belongs to the monitoring technology scope.
Background technology: dam has certain life cycle as retaining the buildings of the huge energy of water from surveying, design, construct, put into operation until discarding.Therefore, from being born from its, since geology and hydrologic condition aging with environmental change, dam material in time, the difference of weather, geology, geography, working time, the condition of dam changes, and its safe condition is different because of the dam.Therefore it is great with analysis significance, very necessary it to be carried out monitoring.Monitoring System for Dam Safety is that reservoir dam is carried out monitoring management in real time, by to Monitoring Data collection, analysis, processing, inquiry, grasps the real time execution situation of reservoir dam, and unusual circumstance is in time also taken measures.
Both at home and abroad to distortion, the cracking monitoring technology of big shape buildings, comparatively advanced at present have microscan camera system, a GPS Global Positioning System (GPS).The former costs an arm and a leg, and then precision is too low again.
Summary of the invention: the purpose of this utility model is to propose a kind of digital display displacement alarm for overcoming above-mentioned deficiency, show shift value with numeral, on the digital display assembly, data-out port is arranged, use special-purpose connecting line, measurement data can be imported computer and carry out data processing.Easy and simple to handle, measuring accuracy is high (error is less than ± 0.01 millimeter), use cost is low.And can set the early warning shift value arbitrarily, when the shift value between two measuring points surpassed the early warning value of setting, main frame sent alarm sound.Also alerting signal can be sent to the command and control center, propose scientific basis so that in time assign the reinforcing dam of speedily carrying out rescue work to the commander.
The method that its technical matters that solves this instrument adopts is: the part of will measuring and report to the police is sealed in (title main frame) in the container, adds special-purpose spooler, support, forms the digital display displacement alarm of a Displacement Measurement jointly.
By surveying chi (1), digital display assembly (comprising: liquid crystal digital display screen (2), fixed screw (3), output port (4), digital display power switch (6), capacitor grid transducer (7)), vernier adjustment knob (5), pouring weight (10), head pulley (11), brace (12), suspension holdfast (13), pulley (14), hook (15), forming the measuring system part.Shadow shield (8), optoelectronic switch (9), battery (16), main power switch (17), relay indicating light (18), horn switch (19), loudspeaker (20), alarm lamp (21), outer terminal (22) etc. are formed the warning system part.See Fig. 1.
Brace (12) passes head pulley (11) and links to each other with survey chi (1) with hook (15) respectively; Vernier adjustment knob (5) links to each other the digital display assembly with backboard, its function is to set the early warning shift value; The bottom of surveying chi (1) links to each other with pouring weight (10); Surveying chi (1) passes in the middle of the digital display assembly; Shadow shield (8) is fixed on to be surveyed on the chi (1), and optoelectronic switch (9) is fixed on the digital display assembly; The suspension holdfast of main frame (13) passes from head pulley (11) center, but fastening screw is in plumbness to guarantee main frame when measuring after main frame is not swung.Select heavy more pouring weight for use according to tested two ends span is big more, the gravity that utilizes pouring weight (10) to produce is made constant-tension drive survey chi (1) and is moved, when tested point-to-point transmission produced change in displacement, survey chi (1) converted shift value with digital form to by the capacitor grid transducer in the digital display assembly (7) and is presented on the liquid crystal digital display screen (2).
Description of drawings:
Fig. 1 is a digital display displacement alarm structural representation.
Fig. 2 is the simple installment work synoptic diagram of digital display displacement alarm.
Embodiment: in Fig. 2, at to be monitored some both sides fixed support (25), the support of digital display displacement alarm (13) is fixed on one side on the support, and the line (23) of spooler (24) hook from another side support (25) is passed on the hook (15) that is connected on main frame.The equipment operation (see figure 1) is: coarse adjustment spooler (tightening up survey line).Close horn switch (19), switch power supply switch (17), open the holding screw (3) on the digital display assembly, surveying chi (1) moves down under the drive of pouring weight (10), shadow shield (8) can not shelves be lived the light of optoelectronic switch (9), relay indicating light this moment (18) is bright, and alarm lamp (21) does not work.The vernier adjustment knob (5) that turns clockwise moves down the digital display assembly, covers the light of optoelectronic switch (9) up to shadow shield (8), and alarm lamp (18) is firm to be ended when bright.Open the power switch (6) on the digital display assembly, this moment, reading was zero; According to the shift value of wanting early warning, counter-clockwise again rotary fine adjustment knob (5) ends when the numerical value that shows to the liquid crystal digital display screen equals early warning value.Record reading is at this moment opened horn switch (19).When producing displacement, surveying chi (1) directly is being presented at displacement on the liquid crystal digital display screen (2) by capacitor grid transducer (7) with digital form, we can be taken in from liquid crystal digital display screen (2) at any time and see the situation of change of current displacement, utilize output port (4), use special-purpose connecting line that measurement data is imported computer and carry out data processing.When warning shift value that mobile displacement equals to set, shadow shield (8) covers the light of optoelectronic switch (9), warning circuit work this moment, and alarm lamp (21) is bright, and loudspeaker (20) send continuous alarm sound.Utilize outer terminal (22), alerting signal can be sent to the command and control center.
The beneficial effects of the utility model are: the gravity that utilizes pouring weight (10) to produce is made constant-tension, selects different pouring weights according to tested point-to-point transmission span size, and the more big pouring weight of selecting of span is more heavy. Shift value intuitively shows with digital form. Certainty of measurement height (error less than less than ± 0.01 millimeter), easy and simple to handle, can Set arbitrarily warning shift value, when reaching the early warning value of setting, shift value produces sound and light alarm. When many digital display displacement alarm devices are combined, just can set up a complete observational network, the decision-making foundation of science is provided to the commander.
Claims (4)
1. digital display displacement alarm, by surveying chi (1), liquid crystal digital display screen (2), fixed screw (3), output port (4), digital display power switch (6), capacitor grid transducer (7), vernier adjustment knob (5), pouring weight (10), head pulley (11), brace (12), suspension holdfast (13), pulley (14), hooks (15) etc. are formed the measuring system part, by shadow shield (8), optoelectronic switch (9), battery (16), main power switch (17), relay indicating light (18), horn switch (19), loudspeaker (20), alarm lamp (21), outer terminal (22) is formed the warning system part, it is characterized in that: survey the capacitor grid transducer (7) of chi (1) from the digital display assembly and pass, the bottom of surveying chi (1) links to each other with pouring weight (10), the heavy more pouring weight (10) of big more loading of finding range, the gravity that utilizes pouring weight (10) to produce is made constant-tension, drives survey chi (1) and moves.
2. digital display displacement alarm according to claim 1 is characterized in that: shadow shield (8) and optoelectronic switch (9) are separately fixed to be surveyed on chi (1) and the digital display assembly.
3. digital display displacement alarm according to claim 1 is characterized in that: when survey chi (1) moves through capacitor grid transducer (7) displacement is presented on the liquid crystal digital display screen (2) with digital form.
4. digital display displacement alarm according to claim 1, it is characterized in that: vernier adjustment knob (5) is used for freely setting the early warning shift value, when displacement surpasses the early warning shift value of setting, produce alarm sound, and be sent to the command and control center by outer terminal (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203518178U CN201653371U (en) | 2009-12-23 | 2009-12-23 | Digital display displacement alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203518178U CN201653371U (en) | 2009-12-23 | 2009-12-23 | Digital display displacement alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653371U true CN201653371U (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203518178U Expired - Fee Related CN201653371U (en) | 2009-12-23 | 2009-12-23 | Digital display displacement alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653371U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706392A (en) * | 2012-06-16 | 2012-10-03 | 无锡同春新能源科技有限公司 | Dam observation instrument with power supply of wind-light compensation power-generating system |
| CN103267475A (en) * | 2013-06-19 | 2013-08-28 | 张楷 | Crack monitoring alarm |
| CN105157553A (en) * | 2015-08-25 | 2015-12-16 | 中汇建筑集团有限公司 | Building component relative displacement signal sensing generation device and application method thereof |
-
2009
- 2009-12-23 CN CN2009203518178U patent/CN201653371U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706392A (en) * | 2012-06-16 | 2012-10-03 | 无锡同春新能源科技有限公司 | Dam observation instrument with power supply of wind-light compensation power-generating system |
| CN103267475A (en) * | 2013-06-19 | 2013-08-28 | 张楷 | Crack monitoring alarm |
| CN105157553A (en) * | 2015-08-25 | 2015-12-16 | 中汇建筑集团有限公司 | Building component relative displacement signal sensing generation device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20131223 |