CN115512521B - Power line ground fault alarm device - Google Patents
Power line ground fault alarm device Download PDFInfo
- Publication number
- CN115512521B CN115512521B CN202210958567.4A CN202210958567A CN115512521B CN 115512521 B CN115512521 B CN 115512521B CN 202210958567 A CN202210958567 A CN 202210958567A CN 115512521 B CN115512521 B CN 115512521B
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- Prior art keywords
- base
- power line
- groove
- light source
- rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a power line ground fault alarm device which comprises a base with a built-in power supply, wherein a first connecting device used for being connected with the power line is arranged on the upper side of the base, a light-emitting device is arranged on the lower side of the base, the light-emitting device comprises an inner lampshade fixedly connected with the lower side of the base, an outer lampshade is sleeved on the outer side of the inner lampshade, the outer lampshade is connected with the base through a second connecting device, an end plate is arranged at the lower end of the outer lampshade, a driving device used for rotating a light source is arranged on the base, the power supply is electrically connected with the light-emitting device and the driving device through a fault trigger switch to form a loop, and a weight is fixedly connected on the lower side of the end plate. The power line ground fault alarm device has the advantages of striking light source and good transmission effect.
Description
Technical Field
The invention relates to the technical field of alarm devices, in particular to a power line ground fault alarm device.
Background
The short-circuit grounding fault alarm device is an auxiliary device for detecting the fault of the power line in the electrical industry of China at present, and is also one of a plurality of fault alarm devices, and when the power line breaks down, the alarm device is used as a signal for informing personnel to maintain in a lighting mode and the like.
When the alarm device is used, the alarm device is arranged on a power line and is exposed to the air for a long time, after dust in the air is accumulated on the luminous body, the brightness of the luminous body is easy to reduce, and when the power line fails, personnel cannot easily see the luminous signal of the alarm device.
Disclosure of Invention
The invention provides a power line ground fault alarm device, which aims to solve the defect that the existing alarm device is easy to accumulate ash so as to reduce brightness, has a dustproof effect, and has a striking light source and a good transmission effect.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a power line ground fault alarm device, including the base that embeds there is the power, the upside of base is provided with the first connecting device who is used for being connected with power line, the downside of base is provided with illuminator, illuminator includes interior lamp shade, outer lamp shade and light source, interior lamp shade fixed connection is in the downside of base, the outside of interior lamp shade is located to outer lamp shade cover, outer lamp shade and interior lamp shade sliding connection, connect through second connecting device between outer lamp shade and the base, the lower extreme of outer lamp shade has the end plate, the upside and the base of light source rotate to be connected, the base is provided with and is used for rotating the light source and drive second connecting device so that the connection between base and the outer lamp shade breaks away from, the power passes through the trouble trigger switch and is connected with illuminator and drive arrangement electricity and forms the return circuit, the downside fixedly connected with pouring weight of end plate.
Further, the first connecting device comprises two brackets and a screw rod which are fixedly connected to the upper side of the base, the screw rod penetrates through the brackets and is in threaded connection with the brackets, an extrusion block is connected between the brackets in a sliding mode, the extrusion block is connected with the base through a first spring, a groove is formed in the upper side of the extrusion block, and a containing cavity for containing a power line is formed between the groove and the screw rod.
Further, the base is provided with a rotating groove, the lamp holder is rotationally connected in the rotating groove, the driving device comprises a motor connected with the lamp holder, and the upper end of the light source is fixedly connected with the lamp holder.
Further, the upside of lamp stand is provided with and is annular first conducting ring and is annular second conducting ring, and the light source includes first positive pole and first negative pole, and first positive pole is connected with first conducting ring, and first negative pole is connected with second conducting ring, and the base is provided with the battery, and the battery electricity is connected with second positive pole and second negative pole, and second positive pole and first conducting ring butt, second negative pole and second conducting ring butt.
Further, the upper end fixedly connected with connecting rod of outer lamp shade, the downside of base is provided with the spread groove, the connecting rod inserts the spread groove, and the upper end of connecting rod extends to form the hook dorsad, the base is provided with first spout, first spout setting is in the upside of spread groove, the one end and the rotation groove intercommunication of first spout, the other end downwardly extending of first spout forms the second spout with the spread groove intercommunication, second connecting device includes sliding connection at the first slide bar of first spout and sliding connection at the second slide bar in the second spout, first slide bar and second slide bar fixed connection, the second slide bar sets up in the one side that the hook was kept away from, and the lower extreme of second slide bar extends to the hook and forms the bolt, bolt and hook cooperation, the upside of first spout is provided with the holding tank, be provided with the second spring in the holding tank, second spring and first slide bar are connected and make first slide bar butt at the edge of lamp stand, the edge fixedly connected with is used for driving the drive piece that first slide bar kept away from the lamp stand, the drive piece is provided with the inclined plane, the one end of inclined plane is connected to the lamp stand's edge of lamp stand is kept away from gradually to the inclined plane.
Further, the upper side of the end plate is also rotationally connected with a rotating seat, the rotating seat is connected with the light source through a transmission device, a reflecting plate in a shape of a circular table is arranged on the upper side of the rotating seat, and the radius of the reflecting plate gradually increases from top to bottom.
Further, the light source is provided with a third chute extending vertically, the transmission device comprises a transmission rod fixedly connected with the lower end and the rotating seat, the transmission rod is at least partially arranged in the third chute and is in sliding connection with the third chute, and the reflecting plate is arranged around the transmission rod.
Further, the cross section of the transmission rod is square, and the cross section of the third sliding groove is matched with the cross section of the transmission rod.
Further, one side of the third chute is provided with a limiting chute, the extending direction of the limiting chute is consistent with that of the third chute, the transmission rod is fixedly connected with a limiting block, and the limiting block is slidably connected in the limiting chute.
Compared with the prior art, the outer lampshade is sleeved on the inner lampshade, so that dust accumulation on the inner lampshade is prevented. The end plate is used for sealing the lower end of the outer lampshade so as to prevent dust from entering the outer lampshade. The driving device is used for rotating the light source, and when the power line fails, the light source emits light and rotates at the same time, so that the light source is more striking. When the power line breaks down, the second connecting device breaks away from base and outer lamp shade, under the effect of gravity, outer lamp shade downward movement has increased alarm device's light emitting area, and then makes alarm device more striking, and the light of a part of light source directly shines in the lamp shade, and in the lamp shade because the dustproof effect of outer lamp shade, the surface is clean, and transmission effect is good.
Drawings
FIG. 1 is a side view of an embodiment of the present application;
FIG. 2 is a top view of an embodiment of the present application;
FIG. 3 is a cross-sectional view A-A of FIG. 2 in accordance with an embodiment of the present application;
FIG. 4 is a B-B cross-sectional view of FIG. 1 in accordance with an embodiment of the present application;
fig. 5 is a schematic view of a lamp socket according to an embodiment of the present application after rotation;
fig. 6 is a schematic view showing a downward movement of an outer cover according to an embodiment of the present application;
figure 7 is a side view of an outer globe of an embodiment of the present application after downward movement.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Referring to fig. 1 to 7, a power line ground fault alarm device includes a base 11 having a power source built therein, a first connection device 12 for connecting with the power line is provided on an upper side of the base 11, a light emitting device 13 is provided on a lower side of the base 11, the light emitting device 13 includes an inner lamp housing 131, an outer lamp housing 132 and a light source 134, the inner lamp housing 131 is fixedly connected to a lower side of the base 11, the outer lamp housing 132 is sleeved on an outer side of the inner lamp housing 131, the outer lamp housing 132 is slidably connected with the inner lamp housing 131, the outer lamp housing 132 is connected with the base 11 through a second connection device 14, a lower end of the outer lamp housing 132 has an end plate 133, a cavity 101 for accommodating the light source 134 is formed between the end plate 133, the outer lamp housing 132, the inner lamp housing 131 and the base 11 is rotatably connected with the upper side of the light source 134, the base 11 is provided with a driving device 15 for rotating the light source 134 and driving the second connection device to disconnect the connection between the base and the outer lamp housing, the power source is electrically connected with the light emitting device and the driving device through a fault trigger switch to form a loop, and a lower side of the end plate 133 is fixedly connected with a weight 1333. In this embodiment, a rotating seat 1331 is rotatably connected to the upper side of the end plate 133, the rotating seat 1331 is connected to the light source 134 through a transmission device 16, a truncated cone-shaped reflecting plate 1332 is disposed on the upper side of the rotating seat 1331, and the radius of the reflecting plate 1332 is gradually increased from top to bottom.
The first connection means 12 is used to connect the power lines, thereby facilitating the installation of the alarm device on the power lines. The light emitting device 13 is used for emitting light, so that when a power line fails, the failure trigger switch enables the light emitting device to work, and personnel are reminded of maintenance in time. One existing conventional manner may be provided with a mounting cavity in the base, the fault trigger switch includes a coil 31 and a switch motor 32 disposed in the mounting cavity, the switch motor is electrically connected with the coil, an output shaft of the switch motor is fixedly connected with a knife 33, a conductive sheet 34 is fixedly connected in the mounting cavity, the conductive sheet is in a circular arc shape, and a center of the conductive sheet is located on an axis of the output shaft of the switch motor. When the circuit fails, a large magnetic field is passed through the coil to generate current to drive the switch motor to rotate, the switch motor drives the knife blade to rotate towards the conducting strip, and after the conducting strip contacts with the knife blade, the battery starts to supply power to the driving device and the light source. The outer lamp shade 132 is sleeved on the inner lamp shade 131 and is attached to the inner lamp shade 131, thereby preventing dust from being accumulated on the inner lamp shade 131. The second connecting means 14 is used to connect the outer lamp cover 132, thereby fixing the outer lamp cover 132 to the base 11. The end plate 133 serves to close the lower end of the outer cover 132, thereby preventing dust from entering the cavity 101. The light source 134 is used to emit light. The driving device 15 is used for rotating the light source 134, and when the power line fails, the light source 134 rotates while emitting light, so that the light source 134 is more striking. In this embodiment, the light source may be configured as a single-side-emitting lamp, so that the light source has a flickering visual effect when rotated. The rotating seat 1331 serves to support the reflection plate 1332. When the power line fails, the second connecting device 14 disconnects the base 11 from the outer lamp cover 132, the outer lamp cover 132 moves downwards under the action of gravity, the volume of the cavity 101 becomes larger, on the other hand, the light of the light source 134 is reflected by the reflecting plate 1332 and irradiates the outer lamp cover 132, so that the light emitting area of the alarm device is increased, the alarm device is more striking, a part of the light source 134 directly irradiates the inner lamp cover 131, and the inner lamp cover 131 is clean in surface and good in transmission effect due to the dustproof effect of the outer lamp cover 132, and the light of the light source 134 can be well transmitted, see fig. 6.
The first connecting device 12 comprises two brackets 121 and a screw 122 fixedly connected to the upper side of the base 11, the screw 122 penetrates through the brackets 121 and is in threaded connection with the brackets 121, an extrusion block 123 is slidably connected between the brackets 121, the extrusion block 123 is connected with the base 11 through a first spring 124, a groove 1231 is formed in the upper side of the extrusion block 123, and a containing cavity 1232 for containing a power line is formed between the groove 1231 and the screw 122.
The first connecting means 12 is based on the principle that the screw 122 is detached from the bracket 121, then the electric power line is placed in the groove 1231, and then the screw 122 is passed through the bracket 121 and screwed down, so far, the electric power line is located in the receiving chamber 1232 and is pressed against the screw 122 by the pressing block 123.
The base 11 is provided with a rotation groove 111, a lamp holder 112 is rotatably connected in the rotation groove 111, the driving device 15 comprises a motor 151 connected with the lamp holder 112, and the upper end of the light source 134 is fixedly connected with the lamp holder 112.
The lamp holder 112 is used for supporting the light source 134, the motor 151 is arranged on the upper side of the lamp holder 112, and when the motor 151 operates, the motor 151 drives the lamp holder 112 to rotate, and the lamp holder 112 drives the light source 134 to rotate.
The upper side of the lamp holder 112 is provided with a first ring 1121 and a second ring 1122, the light source 134 includes a first positive electrode (not shown in the figure) and a first negative electrode (not shown in the figure), the first positive electrode is connected with the first ring 1121, the first negative electrode is connected with the second ring 1122, a battery (i.e. a built-in power supply, not shown in the figure) is arranged in the base 11 and is used for supplying power to the light source 134 and the motor 151, the battery is electrically connected with a second positive electrode 1123 and a second negative electrode 1124, the second positive electrode 1123 is abutted with the first ring 1121, and the second negative electrode 1124 is abutted with the second ring 1122. When the motor 151 drives the lamp holder 112 to rotate, the second anode 1123 is always abutted against the first conductive ring 1121, the second cathode 1124 is always abutted against the second conductive ring 1122, and the battery can always supply power to the light source 134.
The upper end of the outer lamp shade 132 is fixedly connected with a connecting rod 1321, the lower side of the base 11 is provided with a connecting groove 113, the connecting rod 1321 is inserted into the connecting groove 113, the upper end of the connecting rod 1321 extends back to the lamp holder 112 to form a hook 1322, the base 11 is provided with a first sliding groove 114, the first sliding groove 114 is arranged on the upper side of the connecting groove 113, one end of the first sliding groove 114 is communicated with the rotating groove 111, the other end of the first sliding groove 114 extends downwards to form a second sliding groove 115 communicated with the connecting groove 113, the second connecting device 14 comprises a first sliding rod 141 which is connected with the first sliding groove 114 in a sliding way and a second sliding rod 142 which is connected with the second sliding groove 115 in a sliding way, the first sliding rod 141 and the second sliding rod 142 are fixedly connected, the second sliding rod 142 is arranged at one side of the hook 1322 far away from the lamp holder 112, the lower end of the second sliding rod 142 extends to the hook 1322 to form a plug pin 143, the plug pin 143 is matched with the hook 1322, a containing groove 1141 is formed in the upper side of the first sliding groove 114, a second spring 144 is arranged in the containing groove 1141, the second spring 144 is connected with the first sliding rod 141 and enables the first sliding rod 141 to be abutted against the edge of the lamp holder 112, the edge of the lamp holder 112 is fixedly connected with a driving block 1125 for driving the first sliding rod 141 to be far away from the lamp holder 112, the driving block 1125 is provided with an inclined surface 1126, one end of the inclined surface 1126 is connected to the edge of the lamp holder 112, and the other end of the inclined surface 1126 is gradually far away from the lamp holder 112.
When the latch 143 is engaged with the hook 1322, the outer lamp cover 132 is fixed to the base 11, the first sliding rod 141 is pressed against the lamp socket 112 under the action of the second spring 144, and when the power line fails, the motor drives the lamp socket and the driving block to rotate, and the second connection device is driven by the driving block to disconnect the connection between the base and the outer lamp cover. Specifically, the lamp holder 112 is rotated by the motor 151, the lamp holder 112 drives the driving block 1125 to rotate, and when the driving block 1125 rotates to the first sliding rod 141, the first sliding rod 141 is far away from the lamp holder 112 by the inclined surface 1126, see fig. 5. The second spring 144 is shortened, the first sliding rod 141 drives the latch 143 to move through the second sliding rod 142, the latch 143 and the hook 1322 are disengaged, and the outer lamp cover 132 moves downward under the action of gravity, see fig. 6.
The light source 134 is provided with a third slide groove 1341 extending vertically, the transmission device 16 comprises a transmission rod 161 fixedly connected with the rotating seat 1331 at the lower end, the transmission rod 161 is at least partially arranged in the third slide groove 1341 and slidingly connected with the third slide groove 1341, and the reflecting plate 1332 is arranged around the transmission rod 161.
The cross section of the transmission rod 161 is square, and the cross section of the third chute 1341 is adapted to the cross section of the transmission rod 161.
When the cross section of the transmission rod 161 is square, the transmission rod 161 and the light source 134 can only relatively slide, but cannot relatively rotate, that is, when the light source 134 rotates, the transmission rod 161 synchronously rotates, and the transmission rod 161 drives the rotating seat 1331 to rotate.
One side of the third chute 1341 is provided with a limit chute 1342, the extending direction of the limit chute 1342 is consistent with that of the third chute 1341, the transmission rod 161 is fixedly connected with a limit block 1611, and the limit block 1611 is slidably connected in the limit chute 1342.
The limiting block 1611 and the limiting chute 1342 provide a limiting function for the outer lampshade 132, and after the outer lampshade 132 is separated from the base 11, the limiting block 1611 moves downwards until the limiting block 1611 moves to the lower end of the limiting chute 1342, so that the outer lampshade 132 is prevented from falling. In this scheme, the weight 1333 and the outer lampshade 132 are made of lighter materials, and the impact injury is not easy to be caused by gravity falling. In addition, a buffer spring is provided between the end plate 133 and the bottom of the inner globe 131 to avoid the problem of drop impact.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (7)
1. The utility model provides a power line ground fault alarm device which is characterized in that, including the base that embeds there is the power, the upside of base is provided with the first connecting device that is used for with the power line connection, the downside of base is provided with lighting device, lighting device includes interior lamp shade, outer lamp shade and light source, interior lamp shade fixed connection in the downside of base, outer lamp shade cover locates the outside of interior lamp shade, outer lamp shade with interior lamp shade sliding connection, connect through second connecting device between outer lamp shade and the base, the lower extreme of outer lamp shade has the end plate, the upside of light source with the base rotates to be connected, the base is provided with and is used for rotating the light source and drives second connecting device so that the connection between base and the outer lamp shade breaks off, the power passes through the trouble trigger switch and is connected electrically with lighting device and drive arrangement and forms the return circuit, the downside of end plate fixedly connected with the pouring weight;
the base is provided with a rotating groove, the lamp holder is rotationally connected with the rotating groove, the driving device comprises a motor connected with the lamp holder, and the upper end of the light source is fixedly connected with the lamp holder;
The upper end of the outer lampshade is fixedly connected with a connecting rod, the lower side of the base is provided with a connecting groove, the connecting rod is inserted into the connecting groove, the upper end of the connecting rod extends back to the lamp holder to form a hook, the base is provided with a first sliding groove, the first sliding groove is arranged on the upper side of the connecting groove, one end of the first sliding groove is communicated with the rotating groove, the other end of the first sliding groove extends downwards to form a second sliding groove communicated with the connecting groove, the second connecting device comprises a first sliding rod which is in sliding connection with the first sliding groove and a second sliding rod which is in sliding connection with the second sliding groove, the first sliding rod is fixedly connected with the second sliding rod, the second slide bar sets up the hook is kept away from one side of lamp stand, just the lower extreme of second slide bar to the hook extends and forms the bolt, the bolt with the hook cooperation, the upside of first spout is provided with the holding tank, be provided with the second spring in the holding tank, the second spring with first slide bar is connected and makes first slide bar butt is in the edge of lamp stand, the edge fixedly connected with of lamp stand is used for the drive first slide bar is kept away from the drive piece of lamp stand, the drive piece is provided with the inclined plane, the one end of inclined plane is connected to the edge of lamp stand, the other end of inclined plane is kept away from the lamp stand gradually.
2. The power line ground fault warning device according to claim 1, wherein the first connecting device comprises two brackets fixedly connected to the upper side of the base and a screw rod penetrating through the brackets and in threaded connection with the brackets, a squeezing block is slidably connected between the brackets, the squeezing block is connected with the base through a first spring, a groove is formed in the upper side of the squeezing block, and a containing cavity for containing the power line is formed between the groove and the screw rod.
3. The power line ground fault alarm device according to claim 1, wherein a first annular conductive ring and a second annular conductive ring are arranged on the upper side of the lamp holder, the light source comprises a first positive electrode and a first negative electrode, the first positive electrode is connected with the first conductive ring, the first negative electrode is connected with the second conductive ring, the base is provided with a battery, the battery is electrically connected with a second positive electrode and a second negative electrode, the second positive electrode is abutted with the first conductive ring, and the second negative electrode is abutted with the second conductive ring.
4. A power line ground fault warning device according to any one of claims 1 to 3, characterized in that a rotating seat is rotatably connected to the upper side of the end plate, the rotating seat is connected to the light source via a transmission device, a reflecting plate in the shape of a truncated cone is provided on the upper side of the rotating seat, and the radius of the reflecting plate is gradually increased from top to bottom.
5. The power line ground fault warning device according to claim 4, wherein the light source is provided with a third chute extending vertically, the transmission device comprises a transmission rod fixedly connected with the rotating base at the lower end, the transmission rod is at least partially arranged in the third chute and slidingly connected with the third chute, and the reflecting plate is arranged around the transmission rod.
6. The power line ground fault warning device of claim 5, wherein the cross section of the drive rod is square, and the cross section of the third runner is adapted to the cross section of the drive rod.
7. The power line ground fault alarm device according to claim 5, wherein a limit chute is arranged on one side of the third chute, the extending direction of the limit chute is consistent with that of the third chute, the transmission rod is fixedly connected with a limit block, and the limit block is slidably connected in the limit chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210958567.4A CN115512521B (en) | 2022-08-09 | 2022-08-09 | Power line ground fault alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210958567.4A CN115512521B (en) | 2022-08-09 | 2022-08-09 | Power line ground fault alarm device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115512521A CN115512521A (en) | 2022-12-23 |
| CN115512521B true CN115512521B (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210958567.4A Active CN115512521B (en) | 2022-08-09 | 2022-08-09 | Power line ground fault alarm device |
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| Country | Link |
|---|---|
| CN (1) | CN115512521B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372173A (en) * | 2018-12-05 | 2019-02-22 | 金螳螂精装科技（苏州）有限公司 | A kind of suspended ceiling assembling structure in hard-cover room |
| CN211604280U (en) * | 2020-04-14 | 2020-09-29 | 邯郸北科高新技术有限公司 | A raise dust detection warning device for building site |
| CN112419631A (en) * | 2020-12-04 | 2021-02-26 | 陕西天赟轩越科技有限公司 | Waterproof anti-theft alarm for civil security engineering |
| CN212782243U (en) * | 2020-09-30 | 2021-03-23 | 马亚文 | House construction safety alarm device |
| CN216352714U (en) * | 2021-12-03 | 2022-04-19 | 广东为众消防科技股份有限公司 | Automatic fire alarm |
| CN216693451U (en) * | 2022-01-13 | 2022-06-07 | 广东潽洛德照明科技有限公司 | Emergency marker light capable of reducing hanging height in case of fire |
-
2022
- 2022-08-09 CN CN202210958567.4A patent/CN115512521B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372173A (en) * | 2018-12-05 | 2019-02-22 | 金螳螂精装科技（苏州）有限公司 | A kind of suspended ceiling assembling structure in hard-cover room |
| CN211604280U (en) * | 2020-04-14 | 2020-09-29 | 邯郸北科高新技术有限公司 | A raise dust detection warning device for building site |
| CN212782243U (en) * | 2020-09-30 | 2021-03-23 | 马亚文 | House construction safety alarm device |
| CN112419631A (en) * | 2020-12-04 | 2021-02-26 | 陕西天赟轩越科技有限公司 | Waterproof anti-theft alarm for civil security engineering |
| CN216352714U (en) * | 2021-12-03 | 2022-04-19 | 广东为众消防科技股份有限公司 | Automatic fire alarm |
| CN216693451U (en) * | 2022-01-13 | 2022-06-07 | 广东潽洛德照明科技有限公司 | Emergency marker light capable of reducing hanging height in case of fire |
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| Publication number | Publication date |
|---|---|
| CN115512521A (en) | 2022-12-23 |
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