CN213714486U - Flood prevention early warning device for reservoir - Google Patents
Flood prevention early warning device for reservoir Download PDFInfo
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- CN213714486U CN213714486U CN202023348921.7U CN202023348921U CN213714486U CN 213714486 U CN213714486 U CN 213714486U CN 202023348921 U CN202023348921 U CN 202023348921U CN 213714486 U CN213714486 U CN 213714486U
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- shell
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- early warning
- mounting groove
- warning device
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- 230000002265 prevention Effects 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000000977 initiatory effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The application relates to a flood prevention early warning device for a reservoir, which comprises a base and a shell, wherein a water inlet is formed in the peripheral surface of the lower end of the shell, an air hole is formed in the peripheral surface of the upper end of the shell, a sliding rod is vertically arranged on the inner bottom wall of the shell, and a floating plate is sleeved on the peripheral surface of the sliding rod in a sliding manner; the upper end of the shell is provided with a controller, a liquid level sensor and an alarm lamp, and the liquid level sensor is embedded in the top of the shell and extends into the shell; the upper end surface of the base is provided with a mounting groove, the bottom of the shell is provided with a positioning bulge matched with the mounting groove, and the shell and the base are inserted and positioned with the mounting groove through the positioning bulge; the draw-in groove has been seted up to the mounting groove inside wall, draw-in groove and base up end intercommunication, the protruding outer peripheral face in location be provided with the slider of draw-in groove joint, the mounting groove inside wall has been seted up and has been encircleed the base axis and supply the gliding arc wall of slider joint, arc wall and draw-in groove intercommunication. The flood prevention early warning device has the effect of improving the stability of the flood prevention early warning device.
Description
Technical Field
The application relates to the technical field of flood prevention equipment, in particular to a flood prevention early warning device for a reservoir.
Background
The reservoir flood prevention monitoring and early warning is a monitoring and management platform for reservoir unit flood discharge (or water discharge), a monitoring center can remotely monitor information such as water level, rainfall, field images and the like of a reservoir flood discharge opening in real time by means of the system, and a reservoir flood prevention early warning device is installed at a downstream monitoring point. When sudden flood discharge or regulated water discharge occurs, the downstream reservoir flood prevention early warning device issues early warning in time, and life and property loss of people caused by flood discharge or water discharge is avoided.
Among the correlation technique, chinese patent with an authority bulletin number CN210221208U discloses a reservoir water level early warning device, reservoir water level early warning device includes the base, the top of base is provided with the box, the water inlet has all been seted up to the both sides of box, fixedly connected with slide bar between the top of box inner wall and the bottom, the surface of slide bar is provided with the kickboard, the inside of kickboard and the surface sliding connection of slide bar, the top fixedly connected with machine case of box, the bottom of machine incasement portion is from a left side to right side respectively fixedly connected with battery, dc-to-ac converter and nut, battery and dc-to-ac converter electric connection, the inside threaded connection of nut has the threaded rod, the equal fixedly connected with sliding frame. The bottom sliding connection of sliding frame inner wall has the slider, and the slider is used for driving the fixture block and removes, and one side fixedly connected with fixture block of slider, fixture block and draw-in groove looks adaptation, and the sliding frame is run through and extends to the outside of sliding frame in the slider top, and the spout that the cooperation slider used is seted up at the top of sliding frame, and fixedly connected with spring between one side of slider and one side of sliding frame inner wall, the spring is used for the slider to resume the normal position. The utility model provides a reservoir water level early warning device has and does not need the administrator to monitor the water level in real time when flood season, and the malignant event that causes when prevention water level rises, labour saving and time saving, the practicality is higher, and the convenience is dismantled and is installed the device, and the convenience is maintained the device.
With respect to the related art in the above, the inventors consider that: in the related art, the sliding groove matched with the sliding block is formed in the top of the sliding frame, and the sliding frame is installed in water, so that water in a reservoir easily enters the sliding frame through the sliding groove, the spring is immersed in the water, the spring is easily rusted, the stiffness of the spring is affected, the elasticity is reduced, the stability of the flood prevention early warning device is affected, and the improvement space is still provided.
SUMMERY OF THE UTILITY MODEL
In order to improve flood prevention early warning device's steadiness, this application provides a flood prevention early warning device for reservoir.
The application provides a flood prevention early warning device for reservoir adopts following technical scheme:
a flood prevention early warning device for a reservoir comprises a base arranged at a detection point and a shell arranged on the base, wherein a water inlet is formed in the outer peripheral surface of the lower end of the shell, an air hole is formed in the outer peripheral surface of the upper end of the shell, a sliding rod is vertically arranged on the bottom wall in the shell, and a floating plate is sleeved on the outer peripheral surface of the sliding rod in a sliding manner; the upper end of the shell is provided with a controller, a liquid level sensor connected with the controller through an electric wire and an alarm lamp connected with the controller through an electric wire, and the liquid level sensor is embedded at the top of the shell and extends into the shell; the upper end surface of the base is provided with a mounting groove, the bottom of the shell is provided with a positioning bulge matched with the mounting groove, and the shell and the base are inserted and positioned with the mounting groove through the positioning bulge; the mounting groove inside wall has been seted up the draw-in groove, draw-in groove and base up end intercommunication, the protruding outer peripheral face in location be provided with the slider of draw-in groove joint, the mounting groove inside wall has been seted up and has been encircleed the base axis and supply the gliding arc wall of slider joint, arc wall and draw-in groove intercommunication.
Through adopting above-mentioned technical scheme, set up the mounting groove at the base, and set up the location arch with the mounting groove adaptation at the shell lower extreme, the shell installation of being convenient for is taken one's place, simultaneously when the location arch inserts in the mounting groove, the slider inserts to the arc wall entry end from draw-in groove upper end opening, then rotates around base axis direction, make in the slider slides into the arc wall, the roof provides vertical decurrent pretightning force for the slider on the arc wall, be favorable to reducing the probability that the shell breaks away from the base, be favorable to improving flood prevention early warning device's steadiness. Through seting up of water inlet and gas pocket for the liquid level of reservoir can keep flushing with the liquid level in the shell, and the kickboard moves up along slide bar length direction under the buoyancy, and when level sensor was touched to the kickboard, level sensor received the pressure signal of kickboard, and with pressure signal transmission to controller, the controller received the signal and control the warning light and send out alarm sound and flashing light, thereby reaches flood prevention early warning's purpose.
Preferably, the mounting groove is a through groove.
Through adopting above-mentioned technical scheme, when needs are dismantled the maintenance to flood prevention alarm device, the opening of the mounting groove of base opens in aqueous, and the silt debris of aquatic are piled up in the inslot easily, establish the mounting groove into logical groove for the equal opening in both ends sets up about the mounting groove, is favorable to the circumstances that silt was hoarded, and the location of being convenient for is protruding to accomplish with the mounting groove and is pegged graft.
Preferably, the opening at the upper end of the mounting groove is larger than the opening at the lower end of the mounting groove, and the inner side wall of the mounting groove gradually shrinks and narrows from the opening at the upper end of the mounting groove to the opening at the lower end of the mounting groove.
Through adopting above-mentioned technical scheme for the mounting groove lateral wall can provide the holding power for the location is protruding, thereby avoids the condition that whole weight of shell is only born by the slider, is favorable to reducing the cracked probability of slider, is favorable to improving the shell installation steadiness simultaneously.
Preferably, a sliding hole penetrates through the upper end face of the shell, the shell is provided with a vertical sliding connection and an insertion rod in the sliding hole, the insertion rod vertically penetrates through the sliding block, a jack corresponding to the sliding hole is formed in the side wall of the arc-shaped groove, when the sliding block moves to one end, away from the clamping groove, of the arc-shaped groove, the sliding hole is right opposite to the jack, and the sliding block and the arc-shaped groove are fixedly connected with the jack through the insertion rod in an inserting mode.
Through adopting above-mentioned technical scheme, when the slider rotated to the arc wall end, the jack that makes the slide opening of shell and arc wall lower wall aligns to it is fixed to peg graft through the jack of inserted bar and arc wall, thereby the removal of restriction slider is favorable to improving the steadiness of shell.
Preferably, the insertion hole is a through hole.
Through adopting above-mentioned technical scheme, when installing flood prevention early warning device again, probably there is silt in the arc wall of base, sets up the jack into the through-hole for when inserted bar and jack are pegged graft, silt is discharged from jack lower extreme opening, is favorable to reducing the silt and prevents the condition that the inserted bar inserted the jack.
Preferably, the peripheral surface of the base is provided with a sludge discharge groove communicated with the tail end of the arc-shaped groove.
Through adopting above-mentioned technical scheme for when the slider moved toward the spout tip, silt in the arc wall was crowded to the mud discharging groove in, was favorable to reducing the circumstances that silt hinders the slider and slides to the arc wall end.
Preferably, the outer side wall of the shell is provided with an operation groove communicated with the slide hole, the inserted rod is provided with an operation rod extending out of the operation groove, and the length direction of the operation groove is consistent with that of the slide hole.
Through adopting above-mentioned technical scheme for maintenance personal accessible slide operation pole orders about inserted bar and jack separation, thereby for maintenance personal provides the application of force point, is convenient for dismantle the shell.
Preferably, the upper end of the shell is provided with an annular guard plate, the controller is located in the annular guard plate, the alarm is embedded on the outer side wall of the annular guard plate, and the upper end of the annular guard plate is provided with a baffle plate for closing an opening in the upper end of the annular guard plate.
Through adopting above-mentioned technical scheme, annular backplate and baffle form the protection barrier in controller week side and upper end, are favorable to avoiding the controller to receive weather factors such as rainwater and impaired condition.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through location arch and mounting groove grafting realization flood prevention early warning device shell location on the base to through seting up draw-in groove and arc wall at the mounting groove lateral wall, the arc wall encircles around the mounting groove axis, thereby the accessible inserts the bellied slider in the draw-in groove of location and removes to the arc wall initiating terminal, then through rotating the shell, makes in the slider slides in the arc wall, thereby realize the fixed of shell, be favorable to improving the steadiness of shell, and have the function of the dismouting of being convenient for.
Drawings
Fig. 1 is an overall structure schematic diagram of a flood prevention early warning device for a reservoir in an embodiment of the application.
FIG. 2 is a vertical sectional view of an outer shell in the flood prevention early warning device for the reservoir in the embodiment of the application.
Fig. 3 is an explosion diagram of the housing and the base in the flood prevention early warning device for the reservoir according to the embodiment of the application.
FIG. 4 is a schematic view of a connecting structure of a positioning protrusion and a sliding block in the flood prevention early warning device for the reservoir according to the embodiment of the application.
Description of reference numerals: 1. a base; 11. support columns, 12 and backing plates; 13. a sludge discharge groove; 14. mounting grooves; 15. a card slot; 16. an arc-shaped slot; 17. a jack; 2. a housing; 21. a water inlet; 22. air holes; 23. a top plate; 24. an annular guard plate; 25. a baffle plate; 26. a slide hole; 261. an operation slot; 27. a controller; 28. a liquid level sensor; 29. an alarm light; 3. inserting a rod; 31. an operating lever; 4. a slide bar; 41. a floating plate; 5. positioning the projection; 51. a slide block.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses flood prevention early warning device for reservoir. Referring to fig. 1 and 2, the flood prevention early warning device for the reservoir comprises a base 1 fixed at a monitoring point and a shell 2 installed on the upper end face of the base 1. The housing 2 is formed in a cylindrical shape, and an upper end of the housing 2 is opened, and a top plate 23 for closing the opening of the housing 2 is fixed to the upper end of the housing 2. Two water inlets 21 communicated with the inside of the shell 2 are formed in the peripheral surface of the lower end of the shell 2, and air holes 22 communicated with the inside of the shell 2 are formed in the peripheral surface of the upper end of the shell 2. A sliding rod 4 is vertically fixed on the inner bottom wall of the shell 2, and a floating plate 41 is slidably sleeved on the outer peripheral surface of the sliding rod 4. So that water flow can enter the housing 2 from the water inlet 21 and force the floating plate 41 to float inside the housing 2 and be always level with the surface of the reservoir.
Referring to fig. 2, an annular guard plate 24 is fixedly mounted on the upper end surface of the top plate 23, and the annular guard plate 24 is circumferentially disposed along the outer circumferential surface of the top plate 23. The upper end surface of the top plate 23 is fixedly provided with a controller 27 and a liquid level sensor 28 connected with the controller 27 through an electric wire, the liquid level sensor 28 vertically penetrates through the top plate 23 and extends into the shell 2, the outer side wall of the annular protection plate 24 is embedded with an alarm lamp 29, and the alarm lamp 29 is connected with the controller 27 through an electric wire. The baffle 25 is fixed on the upper end face of the annular guard plate 24, so that the periphery and the top of the controller 27 are in a closed environment, and the controller 27 is prevented from being damaged by rainwater. When the liquid level of the reservoir rises, the floating plate 41 moves upwards along the length direction of the slide rod 4 under the action of buoyancy, when the floating plate 41 touches the liquid level sensor 28, the liquid level sensor 28 receives a pressure signal of the floating plate 41 and transmits the pressure signal to the controller 27, and the controller 27 receives the signal and controls the alarm lamp 29 to give out alarm sound and flash the lamp, so that the purpose of flood prevention and early warning is achieved.
Referring to fig. 3 and 4, the base 1 is cylindrical, a plurality of support columns 11 are fixed on the lower end face of the base 1, a backing plate 12 is fixed on the lower end of each support column 11, and the backing plate 12 is fixed on a monitoring point through screws. Thereby making the base 1 overhead. The base 1 has a mounting groove 14 along the axis direction of the base, and the mounting groove 14 is a through groove to prevent silt from being hoarded at the bottom wall of the mounting groove 14. The mounting groove 14 is the radius circular truncated cone type for 14 upper end openings of mounting groove are greater than 14 lower extreme openings of mounting groove, and 14 inside walls of mounting groove contract gradually and narrow from 14 upper end openings of mounting groove to 14 lower extreme openings of mounting groove. The lower end face of the shell 2 is fixed with a positioning bulge 5 matched with the mounting groove 14, and the positioning bulge 5 is in an inverted circular truncated cone shape. The shell 2 and the base 1 are inserted and positioned with the mounting groove 14 through the positioning bulge 5.
Referring to fig. 3 and 4, a clamping groove 15 is formed in the inner side wall of the mounting groove 14, the clamping groove 15 is communicated with the upper end face of the base 1, a sliding block 51 which is connected with the clamping groove 15 in an inserting mode is fixed on the outer peripheral face of the positioning protrusion 5, an arc-shaped groove 16 which surrounds the axis of the base 1 and is used for clamping the sliding block 51 is formed in the inner side wall of the mounting groove 14, and the starting end of the arc-shaped groove 16. When the slide block 51 is inserted into the slot 15 and slides into the starting end of the arc-shaped slot 16, the positioning projection 5 is embedded with the mounting slot 14. Through rotating the shell 2, the sliding block 51 slides into the tail end of the arc-shaped groove 16, so that the shell 2 and the base 1 are fixed, the probability that the shell 2 is separated from the base 1 is favorably reduced, and the stability of the flood prevention early warning device is favorably improved.
Referring to fig. 2 and 3, a sliding hole 26 vertically penetrates through the edge of the upper end of the shell 2, an inserting rod 3 vertically connected with the sliding hole 26 in a sliding manner is installed in the shell 2, the inserting rod 3 vertically penetrates through a sliding block 51, a jack 17 corresponding to the sliding hole 26 is formed in the lower side wall of the arc-shaped groove 16, the jack 17 is a through hole, the condition that sludge is accumulated at the bottom wall of the jack 17 can be reduced, and the jack 17 is located at the tail end of the arc-shaped groove 16. When the sliding block 51 moves to the end of the arc-shaped groove 16, the sliding hole 26 is opposite to and communicated with the insertion hole 17, so that the insertion rod 3 can extend out of the sliding block 51 and be inserted into the insertion hole 17 by sliding the insertion rod 3 downwards. So that the sliding block 51 and the arc-shaped groove 16 are fixedly inserted into the insertion hole 17 through the insertion rod 3. The stability of the housing 2 is further improved.
Referring to fig. 2 and 3, an operation groove 261 communicated with the slide hole 26 is formed in an outer side wall of an upper end of the housing 2, and a length direction of the operation groove 261 is identical to a length direction of the slide hole 26. The outer peripheral surface of the inserted rod 3 is fixed with an operating rod 31 extending out of the operating groove 261, but when the operating rod 31 slides to the upper end of the operating groove 261, the inserted rod 3 is separated from the jack 17, so that a maintenance worker can drive the inserted rod 3 to be separated from the jack 17 by sliding the operating rod 31 outside the shell 2, and the shell 2 is convenient to detach.
Referring to fig. 2 and 3, the outer peripheral surface of the base 1 is provided with a sludge discharge groove 13 communicated with the tail end of the arc-shaped groove 16, so that when the sliding block 51 moves towards the tail end of the arc-shaped groove 16, sludge in the arc-shaped groove 16 is squeezed into the sludge discharge groove 13, and the situation that the sliding block 51 slides to the tail end of the arc-shaped groove 16 is prevented by the sludge.
The implementation principle of the flood prevention early warning device for the reservoir is as follows:
when dismantling the maintenance to flood prevention early warning device's shell 2, installer at first upwards slides action bars 31, makes action bars 31 slide to action groove 261 upper end to order about inserted bar 3 and draw-in groove 15 separation, then rotate shell 2, move to 16 initiating terminals of arc wall until slider 51, then upwards extract shell 2 can, have convenient to detach's advantage.
When installing shell 2 on base 1, at first aim at location arch 5 and mounting groove 14, and adjust slider 51 position, make slider 51 get into the initiating terminal of arc wall 16 from draw-in groove 15, then rotate shell 2, order about slider 51 to slide into arc wall 16 simultaneously, at this in-process, silt in the arc wall 16 is crowded into mud groove 13, when slider 51 supports 16 terminal lateral wall of arc wall, slide opening 26 is just right with the hole, slide action bars 31 downwards at last, and order about inserted bar 3 and insert in the jack 17, thereby accomplish the installation work, have the firm advantage of just being convenient for the installation of installation.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a flood prevention early warning device for reservoir which characterized in that: the detection device comprises a base (1) arranged at a detection point and a shell (2) arranged on the base (1), wherein a water inlet (21) is formed in the outer peripheral surface of the lower end of the shell (2), an air hole (22) is formed in the outer peripheral surface of the upper end of the shell (2), a sliding rod (4) is vertically arranged on the inner bottom wall of the shell (2), and a floating plate (41) is sleeved on the outer peripheral surface of the sliding rod (4) in a sliding manner; the upper end of the shell (2) is provided with a controller (27), a liquid level sensor (28) connected with the controller (27) through an electric wire and an alarm lamp (29) connected with the controller (27) through an electric wire, and the liquid level sensor (28) is embedded in the top of the shell (2) and extends into the shell (2); an installation groove (14) is formed in the upper end face of the base (1), a positioning protrusion (5) matched with the installation groove (14) is arranged at the bottom of the shell (2), and the shell (2) and the base (1) are inserted and positioned with the installation groove (14) through the positioning protrusion (5); draw-in groove (15) have been seted up to mounting groove (14) inside wall, draw-in groove (15) and base (1) up end intercommunication, the protruding (5) outer peripheral face in location be provided with slider (51) of draw-in groove (15) joint, mounting groove (14) inside wall has been seted up and has been encircleed base (1) axis and supply slider (51) gliding arc wall (16) of joint, arc wall (16) and draw-in groove (15) intercommunication.
2. The flood prevention early warning device for the reservoir according to claim 1, characterized in that: the mounting groove (14) is a through groove.
3. The flood prevention early warning device for the reservoir according to claim 2, characterized in that: the opening of the upper end of the mounting groove (14) is larger than the opening of the lower end of the mounting groove (14), and the inner side wall of the mounting groove (14) gradually shrinks and narrows from the opening of the upper end of the mounting groove (14) to the opening of the lower end of the mounting groove (14).
4. The flood prevention early warning device for the reservoir according to claim 3, wherein: the utility model discloses a clamping groove (15) is including shell (2), shell (2) up end run through there is slide opening (26), shell (2) be provided with vertical sliding connection with inserted bar (3) in slide opening (26), inserted bar (3) vertically run through slider (51), jack (17) that correspond with slide opening (26) are seted up to lateral wall under arc wall (16), work as slider (51) move when keeping away from the one end of draw-in groove (15) to arc wall (16), slide opening (26) with jack (17) are just right, it is fixed with jack (17) to peg graft through inserted bar (3) between slider (51) and arc wall (16).
5. The flood prevention early warning device for the reservoir according to claim 4, wherein: the insertion holes (17) are through holes.
6. The flood prevention early warning device for the reservoir according to claim 5, wherein: the outer peripheral surface of the base (1) is provided with a sludge discharge groove (13) communicated with the tail end of the arc-shaped groove (16).
7. The flood prevention early warning device for the reservoir according to claim 6, wherein: the operation groove (261) with slide opening (26) intercommunication is seted up to shell (2) lateral wall, inserted bar (3) are provided with and stretch out outside operation groove (261) action bars (31), the length direction in operation groove (261) length direction is unanimous with the length direction of slide opening (26).
8. The flood prevention early warning device for the reservoir according to claim 7, characterized in that: the alarm is characterized in that an annular protection plate (24) is arranged at the upper end of the shell (2), the controller (27) is located in the annular protection plate (24), the alarm is embedded in the outer side wall of the annular protection plate (24), and a baffle (25) for closing an opening at the upper end of the annular protection plate (24) is arranged at the upper end of the annular protection plate (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023348921.7U CN213714486U (en) | 2020-12-31 | 2020-12-31 | Flood prevention early warning device for reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023348921.7U CN213714486U (en) | 2020-12-31 | 2020-12-31 | Flood prevention early warning device for reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213714486U true CN213714486U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023348921.7U Expired - Fee Related CN213714486U (en) | 2020-12-31 | 2020-12-31 | Flood prevention early warning device for reservoir |
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| Country | Link |
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| CN (1) | CN213714486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837124A (en) * | 2022-04-15 | 2022-08-02 | 蒙城县水利局建筑工程队 | Water conservancy flood prevention monitoring and early warning system |
| CN115424400A (en) * | 2022-09-15 | 2022-12-02 | 山东飞天光电科技股份有限公司 | Railway platform monitoring and early warning device |
-
2020
- 2020-12-31 CN CN202023348921.7U patent/CN213714486U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837124A (en) * | 2022-04-15 | 2022-08-02 | 蒙城县水利局建筑工程队 | Water conservancy flood prevention monitoring and early warning system |
| CN114837124B (en) * | 2022-04-15 | 2024-02-09 | 蒙城县水利局建筑工程队 | Water conservancy flood prevention monitoring and early warning system |
| CN115424400A (en) * | 2022-09-15 | 2022-12-02 | 山东飞天光电科技股份有限公司 | Railway platform monitoring and early warning device |
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Granted publication date: 20210716 |