CN112700740B - Safe passage road guide sign - Google Patents
Safe passage road guide sign Download PDFInfo
- Publication number
- CN112700740B CN112700740B CN202011578140.9A CN202011578140A CN112700740B CN 112700740 B CN112700740 B CN 112700740B CN 202011578140 A CN202011578140 A CN 202011578140A CN 112700740 B CN112700740 B CN 112700740B
- Authority
- CN
- China
- Prior art keywords
- cavities
- reciprocating
- liquid storage
- cavity
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
- G09F27/004—Displays including an emergency or alarm message
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention discloses a road guide mark for a safe passage, which comprises a shell, wherein a rotating cavity and a liquid storage cavity are sequentially arranged in the shell from top to bottom; trigger mechanism is including setting up two spouts in the casing, two the spout is located the left and right sides in stock solution chamber respectively, two all be equipped with the sliding block in the spout, two the sliding block all with the interior top and the interior bottom sliding connection of the spout that corresponds. This guide sign can produce sound and light when the conflagration takes place and remind the crowd to keep calm, can set up a plurality of roads of finding out that guarantee people can be accurate simultaneously in the escape way, and will guide the smoke and dust around the sign and blow away to the extension guides the time of guiding of sign.
Description
Technical Field
The invention relates to the field of fire fighting, in particular to a safe passage road guiding mark.
Background
In recent years, with the enlargement of commercial building area, the problems in people evacuation design are increasingly appearing, wherein the problems frequently encountered are that the first floor evacuation distance is too long and the evacuation stairway is not directly communicated outdoors, and therefore, a safety passageway is often separately established, but the following problems still exist in the existing safety passageway:
when a fire disaster occurs, especially when the fire disaster is large, because the passageway in a building is small and inflammable matters are more, a large amount of dense smoke can be generated under normal conditions, because the dense smoke is usually more, when the dense smoke penetrates into the safety passageway, the sight line in the safety passageway is deteriorated, so that people cannot find a correct road, and meanwhile, because people are too panic when the fire disaster occurs, a trampling event easily occurs, so that the problem is reasonably solved.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a safe passage road guiding mark which can generate sound and light to remind people of keeping calm when a fire disaster occurs, and meanwhile, a plurality of roads which can ensure people to accurately find out can be arranged in a safe passage, and smoke around the guiding mark is blown away, so that the guiding time of the guiding mark is prolonged.
In order to achieve the purpose, the invention adopts the following technical scheme:
a road guide mark of a safe passage comprises a shell, wherein a rotating cavity and a liquid storage cavity are sequentially arranged in the shell from top to bottom, two reciprocating cavities and two impact cavities are arranged in the shell, the two reciprocating cavities are positioned on the left side and the right side of the rotating cavity, and the two impact cavities are respectively positioned above the corresponding reciprocating cavities; trigger mechanism, trigger mechanism is including setting up two spouts in the casing, two the spout is located the left and right sides in stock solution chamber respectively, two all be equipped with the sliding block in the spout, two the sliding block all with the interior top and the interior bottom sliding connection of the spout that corresponds, two one side inner wall that stock solution chamber was kept away from to one side in stock solution chamber and the spout that corresponds was kept away from to the sliding block all is connected through the memory wire, two the spout is located one side space that corresponds the sliding block and is close to the stock solution chamber and all fills there is sodium carbonate powder, the stock solution intracavity is filled there is aluminum sulfate solution. A reciprocating mechanism is arranged in the two reciprocating cavities together; two striking intracavity is equipped with sound generating mechanism jointly, thereby sound generating mechanism is used for producing sound reminds people.
Preferably, the level is equipped with the bull stick in the rotation intracavity, the both ends of bull stick rotate with the both sides inner wall in rotation chamber to be connected, the interior bottom in rotation chamber passes through the intake pipe intercommunication with the interior top in stock solution chamber, a plurality of impeller blades are installed along its circumference to the outer wall of bull stick.
Preferably, the reciprocating mechanism comprises moving blocks respectively arranged in two reciprocating cavities, the two moving blocks are all magnetic, two ends of the rotating rod respectively extend into the two reciprocating cavities and are rotatably connected with the inner wall of one side, far away from the rotating cavity, of the two reciprocating cavities, the rotating rod is internally provided with thread layers inside the two reciprocating cavities, the two thread layers of the rotating rod respectively penetrate through the two moving blocks, the two thread layers of the rotating rod are respectively in threaded connection with the two moving blocks, the two moving blocks are respectively in sliding connection with the inner top and the inner bottom of the corresponding reciprocating cavity, the front side of the shell is symmetrically provided with two hollow plates, the two hollow plates are communicated with the inner top of the rotating cavity through a three-way pipe, and the adjacent sides of the two hollow plates are provided with a plurality of air ports.
Preferably, the sound generating mechanism is including setting up two mounting panels in the striking intracavity respectively, two the mounting panel is with the both sides inner wall fixed connection in the striking chamber that corresponds, two equal fixedly connected with tuning fork, two on the adjacent side inner wall in striking chamber all be equipped with a plurality ofly on the mounting panel and correspond tuning fork matched with striking structure, every the magnetic path with corresponding movable block matched with is all installed to the lower extreme of striking structure, like poles repel with the looks of the adjacent surface of corresponding movable block a plurality of magnetic paths.
Preferably, the impact structure comprises a supporting rod arranged above the mounting plate, a copper ball is fixed at the upper end of the supporting rod, a baffle is arranged on the part, located above the mounting plate, of the supporting rod, and the two ends of the baffle are elastically connected with the upper end of the mounting plate through connecting springs.
Preferably, the front side of casing is equipped with two transparent light emitting box, two equal symmetry is installed two electrically conductive sharp needles, two on transparent light emitting box's the inner wall all be equipped with piezoceramics piece, two in the striking chamber the both sides inner wall fixed connection in both ends and the striking chamber that corresponds of piezoceramics piece.
Compared with the prior art, the invention has the following beneficial effects:
1. be provided with sound production mechanism, the carbon dioxide that the reaction produced passes through the intake pipe and gets into and rotate the intracavity, because gaseous continuous impact, make a plurality of impeller blades take place to rotate, thereby control the removal of drive movable block, remove of movable block and make a plurality of magnetic paths drive striking structure striking tuning fork, thereby produce sound and keep calm, avoid trampling the emergence of incident, when smog is great, the unable clear road of seeing of people and when guiding the sign, can remind people correct road's position through sound, thereby avoid the condition emergence of people lost.
2. The intracavity is rotated in the gaseous entering of carbon dioxide for the gas in rotation chamber increases, and unnecessary gas can get into two hollow core plates through the three-way pipe in, through two gas pocket spouts on the hollow core plate, thereby will guide the smoke and dust on the sign to get rid of, promote the guide time of guiding the sign.
3. In the process that the magnetic block moves up and down, the magnetic block can extrude the piezoelectric ceramic piece to generate high voltage, the high voltage is transmitted into the transparent light-emitting boxes on two sides through electric connection, the high voltage is generated between the two conductive sharp needles in the two conductive sharp needles to puncture air in the transparent light-emitting boxes to generate a discharge phenomenon to generate light, and the light can be sequentially generated in the two transparent light-emitting boxes along with continuous up and down movement of the magnetic block, so that the reminding effect and the guiding effect are better.
Drawings
Fig. 1 is a schematic structural diagram of a safety channel road guidance sign according to the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B of FIG. 1;
FIG. 4 is an enlarged schematic view of the structure at C in FIG. 1;
FIG. 5 is a schematic front view of FIG. 1;
FIG. 6 is a schematic structural view of example 2 of the present invention;
fig. 7 is a schematic front view of fig. 6.
In the figure: the device comprises a shell 1, a liquid storage cavity 2, a sliding chute 3, a sliding block 4, a memory metal wire 5, a reciprocating cavity 6, a rotating rod 7, an air inlet pipe 8, an impeller blade 9, a rotating cavity 10, an impact cavity 11, a tuning fork 12, a transparent light-emitting box 13, a conductive sharp needle 14, a moving block 15, a mounting plate 16, a magnetic block 17, an impact structure 18, a three-way pipe 19, a hollow plate 20 and a piezoelectric ceramic plate 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-5, a safety channel road guide sign comprises a housing 1, wherein the housing 1 has thermal conductivity, a rotating cavity 10 and a liquid storage cavity 2 are sequentially arranged in the housing 1 from top to bottom, two reciprocating cavities 6 and two impact cavities 11 are arranged in the housing 1, the two reciprocating cavities 6 are positioned at the left side and the right side of the rotating cavity 10, and the two impact cavities 11 are respectively positioned above the corresponding reciprocating cavities 6;
trigger mechanism, trigger mechanism is including setting up two spout 3 in casing 1, two spout 3 are located the left and right sides in stock solution chamber 2 respectively, all be equipped with sliding block 4 in two spout 3, two sliding block 4 all with the interior top and the interior bottom sliding connection of spout 3 that correspond, one side that stock solution chamber 2 was kept away from to two sliding block 4 and one side inner wall that stock solution chamber 2 was kept away from to spout 3 that corresponds all are connected through memory wire 5, memory wire 5 is the heliciform at normal atmospheric temperature, when the temperature reaches memory wire 5's abnormal temperature, memory wire 5 becomes the strip by the heliciform, two spout 3 are located to correspond one side space that sliding block 4 is close to stock solution chamber 2 and all fill there is the sodium carbonate powder, stock solution 2 intussuseption is filled with aluminum sulfate solution, the sodium carbonate powder can acutely react with aluminum sulfate and produce a large amount of carbon dioxide gas.
A reciprocating mechanism is arranged in the two reciprocating cavities 6;
the two impact cavities 11 are internally provided with a sound generating mechanism together, and the sound generating mechanism is used for generating sound so as to remind people.
Wherein, rotate the interior level of chamber 10 and be equipped with bull stick 7, the both ends of bull stick 7 are connected with the both sides inner wall rotation of rotating chamber 10, rotate the interior bottom in chamber 10 and pass through intake pipe 8 intercommunication with the interior top in stock solution chamber 2, and a plurality of impeller blades 9 are installed along its circumference to the outer wall of bull stick 7.
Wherein, reciprocating mechanism is including setting up the movable block 15 in two reciprocating chambers 6 respectively, two movable blocks 15 all have magnetism, the both ends of bull stick 7 extend to respectively in two reciprocating chambers 6 and keep away from one side inner wall rotation connection that rotates chamber 10 with two reciprocating chambers 6, bull stick 7 is located two reciprocating chambers 6 insides and all is equipped with the screw thread layer, the screw thread layer on the bull stick 7 is the screw thread layer similar to reciprocating screw, two screw thread layer parts of bull stick 7 run through two movable blocks 15 respectively, two screw thread layer parts of bull stick 7 respectively with two movable block 15 threaded connection, two movable blocks 15 all with the interior top and the interior bottom sliding connection of corresponding reciprocating chamber 6, the front side symmetry of casing 1 is equipped with two hollow plates 20, two hollow plates 20 pass through three-way pipe 19 intercommunication with the interior top of rotating chamber 10, three-way pipe 19 is for having three open-ended pipeline, all be equipped with a plurality of gas ports on the adjacent side of two hollow plates 20.
Wherein, the sound generating mechanism is including setting up two mounting panels 16 in striking chamber 11 respectively, two mounting panels 16 and the both sides inner wall fixed connection of the striking chamber 11 that corresponds, equal fixedly connected with tuning fork 12 on the adjacent side inner wall in two striking chambers 11, all be equipped with a plurality ofly on two mounting panels 16 and correspond tuning fork 12 matched with striking structure 18, the magnetic path 17 with corresponding movable block 15 matched with is all installed to the lower extreme of every striking structure 18, a plurality of magnetic paths 17 repel each other with the adjacent surface of corresponding movable block 15, when movable block 15 is close to like polarity magnetic path 17, make magnetic path 17 move up, when movable block 15 keeps away from magnetic path 17, under the effect of gravity, magnetic path 17 moves down.
The impact structure 18 includes a support rod disposed above the mounting plate 16, a copper ball is fixed to the upper end of the support rod, a baffle is mounted on a portion of the support rod above the mounting plate 16, and two ends of the baffle are elastically connected to the upper end of the mounting plate 16 through a connecting spring.
When the conflagration takes place, because the smoke and dust temperature that produces is higher, when the smoke and dust is filled up in the escape way, through inside casing 1 with heat induction device, thereby make the temperature rise in two spouts 3 and the stock solution chamber 2, when the temperature reaches memory wire 5's abnormal temperature, memory wire 5 becomes the strip by the heliciform, thereby make two sliding blocks 4 relative motion left, two sliding blocks 4 are relative motion and make sodium carbonate powder get into in the stock solution chamber 2 and react with aluminum sulfate solution, the reaction equation is AI 2 (SO 4 ) 3 +3Na 2 CO 3 +3H 2 O＝＝3Na 2 SO 4 +2AI(OH) 3 +3CO 2 Thereby producing a large amount of carbon dioxide;
the generated carbon dioxide enters the rotating cavity 10 through the air inlet pipe 8, the impeller blades 9 rotate due to continuous impact of air, the impeller blades 9 rotate to drive the rotating rod 7 to rotate, the rotating rod 7 rotates to enable the two moving blocks 15 to move left and right, the two moving blocks 15 move left and right due to the fact that the two moving blocks 15 and the corresponding magnetic blocks 17 are in the same polarity repulsion with each other on the adjacent surfaces, when the moving blocks 15 move to the lower ends of the corresponding magnetic blocks 17, the magnetic blocks 17 move up, the magnetic blocks 17 drive the abutting rods to move up, the copper balls collide with the tuning forks 12 to generate sound, people are reminded of keeping calm, the occurrence of trampling events is avoided, when the moving blocks 15 are far away from the magnetic blocks 17, the abutting rods move down under the gravity action of the copper balls, due to the elastic action of the connecting springs, the abutting rods and the copper balls can continuously collide with the tuning forks 12 for multiple times under the inertia action, and the reminding effect is better;
when the smoke is large, people can not clearly see the road and guide the sign, and the correct road position can be reminded through sound, so that the phenomenon that people get lost is avoided.
When carbon dioxide gas gets into and rotates chamber 10 for the gas that rotates chamber 10 increases, unnecessary gas can get into two hollow plates 20 through three-way pipe 19 in, through two gas pocket spouts on the hollow plate 20, thereby will guide the smoke and dust on the sign to get rid of, promote the guide time of guiding the sign.
Example 2
Referring to fig. 6 to 7, the embodiment is different from embodiment 1 in that two transparent light emitting boxes 13 are disposed on the front side of the housing 1, neon gas can be filled in the transparent light emitting boxes 13, and the neon gas can generate red light during ionization, so that the reminding and guiding effects are better, two conductive sharp needles 14 are symmetrically mounted on the inner walls of the two transparent light emitting boxes 13, piezoelectric ceramic plates 21 are disposed in the two impact cavities 11, two ends of each of the two piezoelectric ceramic plates 21 are fixedly connected with the inner walls of two sides of the corresponding impact cavity 11, the two piezoelectric ceramic plates 21 are located below the corresponding multiple impact structures 18, and the piezoelectric ceramic plates 21 are pressed by up and down movement of the magnetic block 17, so that high voltage is generated.
In this embodiment, the in-process that a plurality of magnetic blocks 17 reciprocated for a plurality of magnetic blocks 17 extrusion piezoceramics piece 21, thereby produce high voltage, and transmit to four electrically conductive sharp needles 14 in the transparent light-emitting box 13 of both sides through electric connection on, make to produce high voltage between per two corresponding electrically conductive sharp needles 14, puncture neon in the transparent light-emitting box 13, produce the discharge phenomenon, produce ruddiness, along with continuous reciprocating of magnetic block 17, can make the interior indirect production ruddiness of two transparent light-emitting boxes 13, realize the scintillation of light source, thereby make and remind the effect and guide the effect better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A secure tunnel road guidance sign, comprising:
the liquid storage device comprises a shell (1), wherein a rotating cavity (10) and a liquid storage cavity (2) are sequentially arranged in the shell (1) from top to bottom, two reciprocating cavities (6) and two impact cavities (11) are arranged in the shell (1), the two reciprocating cavities (6) are positioned on the left side and the right side of the rotating cavity (10), and the two impact cavities (11) are respectively positioned above the corresponding reciprocating cavities (6);
the trigger mechanism comprises two sliding grooves (3) arranged in the shell (1), the two sliding grooves (3) are respectively positioned at the left side and the right side of the liquid storage cavity (2), sliding blocks (4) are respectively arranged in the two sliding grooves (3), the two sliding blocks (4) are respectively in sliding connection with the inner top and the inner bottom of the corresponding sliding groove (3), one side, far away from the liquid storage cavity (2), of each sliding block (4) is connected with the inner wall, far away from the liquid storage cavity (2), of the corresponding sliding groove (3) through a memory metal wire (5), the space, close to the liquid storage cavity (2), of one side, close to the liquid storage cavity (2), of each sliding block (4) is filled with sodium carbonate powder, and the liquid storage cavity (2) is filled with aluminum sulfate solution;
a reciprocating mechanism is arranged in the two reciprocating cavities (6) together;
the two impact cavities (11) are internally provided with a sounding mechanism together, and the sounding mechanism is used for generating sound to remind people;
a rotating rod (7) is horizontally arranged in the rotating cavity (10), two ends of the rotating rod (7) are rotatably connected with the inner walls of two sides of the rotating cavity (10), the inner bottom of the rotating cavity (10) is communicated with the inner top of the liquid storage cavity (2) through an air inlet pipe (8), and a plurality of impeller blades (9) are arranged on the outer wall of the rotating rod (7) along the circumferential direction of the rotating rod;
the reciprocating mechanism comprises moving blocks (15) which are respectively arranged in two reciprocating cavities (6), the two moving blocks (15) are magnetic, two ends of the rotating rod (7) respectively extend into the two reciprocating cavities (6) and are rotatably connected with the inner wall of one side, far away from the rotating cavity (10), of the two reciprocating cavities (6), the rotating rod (7) is positioned inside the two reciprocating cavities (6) and is provided with a threaded layer, two threaded layer parts of the rotating rod (7) respectively penetrate through the two moving blocks (15), the two threaded layer parts of the rotating rod (7) are respectively in threaded connection with the two moving blocks (15), the two moving blocks (15) are respectively in sliding connection with the inner top and the inner bottom of the corresponding reciprocating cavities (6), two hollow plates (20) are symmetrically arranged on the front side of the shell (1), the two hollow plates (20) are communicated with the inner top of the rotating cavity (10) through a three-way pipe (19), and a plurality of air ports are respectively arranged on the adjacent sides of the two hollow plates (20);
the sound production mechanism is including setting up two mounting panel (16) in striking chamber (11), two respectively mounting panel (16) and the both sides inner wall fixed connection of the striking chamber (11) that corresponds, two equal fixedly connected with tuning fork (12), two on the adjacent side inner wall of striking chamber (11) all be equipped with a plurality ofly on mounting panel (16) and correspond tuning fork (12) matched with striking structure (18), every the magnetic path (17) of moving block (15) matched with that correspond is all installed to the lower extreme of striking structure (18), a plurality of magnetic paths (17) are repelled with the adjacent surface homopolar of the moving block (15) that corresponds.
2. The safe passageway road guide sign according to claim 1, wherein the impact structure (18) comprises a resisting rod arranged above the mounting plate (16), a copper ball is fixed at the upper end of the resisting rod, a baffle is arranged at the part of the resisting rod above the mounting plate (16), and both ends of the baffle are elastically connected with the upper end of the mounting plate (16) through a connecting spring.
3. The safety channel road guide sign according to claim 1, wherein two transparent light-emitting boxes (13) are arranged on the front side of the housing (1), two conductive sharp needles (14) are symmetrically arranged on the inner walls of the two transparent light-emitting boxes (13), piezoelectric ceramic plates (21) are arranged in the two impact cavities (11), and two ends of the two piezoelectric ceramic plates (21) are fixedly connected with the inner walls of two sides of the corresponding impact cavities (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578140.9A CN112700740B (en) | 2020-12-28 | 2020-12-28 | Safe passage road guide sign |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578140.9A CN112700740B (en) | 2020-12-28 | 2020-12-28 | Safe passage road guide sign |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112700740A CN112700740A (en) | 2021-04-23 |
| CN112700740B true CN112700740B (en) | 2022-12-30 |
Family
ID=75512503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011578140.9A Active CN112700740B (en) | 2020-12-28 | 2020-12-28 | Safe passage road guide sign |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112700740B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117739517B (en) * | 2024-02-19 | 2024-04-30 | 福建省鼎智新材料科技有限公司 | PTC water heating water tank of new energy automobile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3567928A (en) * | 1969-06-12 | 1971-03-02 | Du Pont | Fluorescent analytical radiation source for producing soft x-rays and secondary electrons |
| US9719812B2 (en) * | 2015-08-07 | 2017-08-01 | Cooper Technologies Company | Gas sensor housing |
| CN108432394A (en) * | 2018-04-23 | 2018-08-24 | 道真仡佬族苗族自治县好未来中药材农民专业合作社 | Lip river Radix Codonopsis seed germinating apparatus |
| CN111028734B (en) * | 2019-12-26 | 2021-11-26 | 深圳市美何广告有限公司 | Self-cleaning display type board |
| CN111480694A (en) * | 2020-04-23 | 2020-08-04 | 戴海荣 | Agricultural cereal drying device |
| CN111785185A (en) * | 2020-07-22 | 2020-10-16 | 丁祥书 | Fire indication escape device for underground engineering |
-
2020
- 2020-12-28 CN CN202011578140.9A patent/CN112700740B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112700740A (en) | 2021-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112700740B (en) | Safe passage road guide sign | |
| CN111028734B (en) | Self-cleaning display type board | |
| ES2557572T3 (en) | Procedures and apparatus for determining the flight conditions of an aircraft | |
| CN111038649A (en) | Self-flashing type marine warning equipment | |
| CN210377761U (en) | Fire fighting equipment based on NB-IoT (network B-IoT) Internet of things | |
| CA2261282A1 (en) | Fire alarm lever enclosure | |
| CN211033680U (en) | Storage equipment for surveying and mapping device | |
| CN218409454U (en) | Camera capable of monitoring temperature | |
| CN114400548A (en) | Multi-functional domestic intelligent power distribution box | |
| CN113566899A (en) | Self-early-warning type high-heat-dissipation laser obstacle-clearing platform system | |
| CN215258496U (en) | Variable airflow protection device | |
| CN112909379A (en) | Storage battery capacity protection device based on chemical solution characteristics | |
| CN210534961U (en) | Earthquake warning and salvation device | |
| CN216774851U (en) | High-performance camera lens cone | |
| CN202994402U (en) | SF6 gas leaking point laser imager | |
| CN215633150U (en) | Mining intrinsic safety type audible and visual alarm | |
| CN211182023U (en) | Magnetic blow type arc isolation plate and miniature circuit breaker arc extinguishing system using same | |
| CN110265898B (en) | Electric meter box | |
| CN210924845U (en) | Firefighter distress device | |
| CN210577226U (en) | Power control device based on Internet of things | |
| CN209989244U (en) | Glass machine-shaping equipment for building | |
| CN216159871U (en) | Building engineering quality detector squareness detector | |
| CN219842726U (en) | Smoke alarm | |
| CN220543635U (en) | Fireproof flame-retardant cable | |
| CN217541875U (en) | Cigarette circumference detects auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221207 Address after: No.139, Hong Kong East Road, Laoshan District, Qingdao City, Shandong Province 266000 Applicant after: Qingdao Road and Bridge Construction Group Co.,Ltd. Address before: 210046 Maigaoqiao Pioneer Park, 18 Yinchun Road, Qixia District, Nanjing City, Jiangsu Province Applicant before: Bi Yudong |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |