CN111681400A - 110 networking alarm device of education trade - Google Patents

110 networking alarm device of education trade Download PDF

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Publication number
CN111681400A
CN111681400A CN202010519586.8A CN202010519586A CN111681400A CN 111681400 A CN111681400 A CN 111681400A CN 202010519586 A CN202010519586 A CN 202010519586A CN 111681400 A CN111681400 A CN 111681400A
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CN
China
Prior art keywords
baffle
alarm
plate
pressing
top surface
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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.)
Withdrawn
Application number
CN202010519586.8A
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Chinese (zh)
Inventor
田维源
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Yuankang Information Technology Co ltd
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Hefei Yuankang Information Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hefei Yuankang Information Technology Co ltd filed Critical Hefei Yuankang Information Technology Co ltd
Priority to CN202010519586.8A priority Critical patent/CN111681400A/en
Publication of CN111681400A publication Critical patent/CN111681400A/en
Withdrawn legal-status Critical Current

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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/12Manually actuated calamity alarm transmitting arrangements emergency non-personal manually actuated alarm, activators, e.g. details of alarm push buttons mounted on an infrastructure

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The invention discloses a networking alarm device in the education industry, which comprises a street lamp bracket and an alarm device arranged outside the street lamp bracket in a matching way, wherein the upper end of the outer surface of the street lamp bracket is provided with a monitoring mechanism in a matching way, and the alarm device comprises an alarm and an adjusting bracket arranged outside the alarm in a matching way. According to the alarm, the alarm is arranged in the adjusting frame through the adjusting frame, the alarm is protected, and the connecting lock is arranged, so that the second cover plate can be conveniently opened, and the alarm can be directly operated; through setting up first pressing mechanism, the personnel of reporting to the police can use the balancing weight to destroy the guard box, pushes down first pressure strip to make the U type press the frame and press alarm button, accomplish a key and report to the police, this kind of setting, first pressing mechanism is airtight places in the guard box, during the warning, need destroy the guard box and can accomplish the warning, thereby effectively avoid traditional protecting sheathing to easily open and lead to the mistake to open the emergence of the urgent equipment condition of seeking help.

Description

110 networking alarm device of education trade
Technical Field
The invention belongs to the technical field of alarm equipment, and particularly relates to a 110 networking alarm device in the education industry.
Background
The campus safety work is an important part of the whole social safety work, is directly related to the safety and health of young students, and has become a hot point of attention of all social circles. In the campus safety work, equipment such as campus security protection, emergency alarm need increase and upgrade urgently, need increase the density of equipment of seeking help in the campus, and when the time of emergency took place, the student can catch up to the department of reporting to the police fast, presses alarm button and reports to the police. Urgent help equipment is generally installed in enclosure, railing or corridor department, generally only installs the shell additional in urgent help equipment outside, during the use, directly open the shell, can report to the police, this kind of setting, it is poor to the protective effect of urgent help equipment, moreover, because the flow of people is big in the campus, because urgent help equipment protective housing is convenient for open, there is the condition of opening urgent help equipment by mistake to take place, lead to real emergency to obtain timely succourage from this.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a 110 networking alarm device in the education industry, wherein the alarm is arranged in the adjusting frame through the adjusting frame to form protection for the alarm, and the second cover plate can be conveniently opened through the connecting lock, so that the alarm can be directly operated; through setting up first pressing mechanism, the warning personnel can use the balancing weight to destroy the guard box, push down first pressure strip, thereby make the U type press the frame and press alarm button, accomplish a key and report to the police, this kind of setting, first pressing mechanism is airtight to be placed in the guard box, during the warning, need destroy just can accomplish the warning to the guard box, thereby effectively avoid traditional protecting sheathing to easily open and lead to the mistake to open the emergence of the urgent equipment condition of seeking help, prevent that real emergency from getting the emergence of the condition of timely succour.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a110 networking alarm device in education industry comprises a street lamp bracket and an alarm device which is installed outside the street lamp bracket in a matching mode, wherein a monitoring mechanism is installed at the upper end of the outer surface of the street lamp bracket in a matching mode, the alarm device comprises an alarm and an adjusting bracket which is installed outside the alarm in a matching mode, a first base is fixedly installed below the street lamp bracket, and the adjusting bracket is fixedly installed on the top surface of the first base;
the alarm device comprises an alarm device, a first pressing column, a first pressing mechanism, an arc pressing rod and a second pressing mechanism, wherein an alarm button is slidably mounted on the top surface of the alarm device, a U-shaped pressing frame is arranged in the center of the top surface of the alarm button, the first pressing column is fixedly mounted at the closed end of the U-shaped pressing frame, the first pressing mechanism is movably mounted above the first pressing column, the arc pressing rod matched with the first pressing column is movably mounted at the right end of the top surface of the alarm button, and the second pressing mechanism is fixedly mounted;
the alignment jig is including rotating pedestal and fixed mounting at the adjusting box who rotates the pedestal right flank, it rotates the pedestal and installs in the lighting fixture surface to rotate, it has vertical extension board to rotate pedestal top surface right-hand member fixed mounting, adjusting box right flank fixed mounting has first baffle, the one end that adjusting box was kept away from to first baffle top surface is installed the second baffle perpendicularly, the third baffle is installed perpendicularly to second baffle top surface, bottom surface and vertical extension board top surface fixed connection under the third baffle, first pressing mechanism fixed mounting is in third baffle top surface, the cooperation of second pressing mechanism is installed between alarm right flank and second baffle left surface.
Further, monitoring mechanism includes second base and the L type connecting rod of fixed mounting at the second base right flank, the second base rotates to be installed in the lighting fixture outside, the one end fixed mounting that the second base was kept away from to L type connecting rod has the camera.
Further, vertical extension board trailing flank fixed mounting has first apron, vertical extension board leading flank rotates and installs the second apron, second apron right flank fixed mounting has first U type hasp, second baffle right flank fixed mounting has second U type hasp, movable mounting has the connection lock between first U type hasp and the second U type hasp.
Further, slidable mounting has the connection baffle in the adjusting box, bottom surface fixed mounting has first spring under the connection baffle, the one end fixed mounting that the connection baffle was kept away from to first spring is in adjusting the bottom half, frame one end and alarm button in close contact with are pressed to the U type, the frame other end is pressed to the U type and is connected baffle fixed connection.
Furthermore, the first pressing mechanism comprises a sliding rod and a sliding sleeve sleeved outside the sliding rod, the top surface of the third baffle is provided with a sliding hole matched with the sliding rod, the sliding sleeve is fixedly installed on the top surface of the third baffle, and one end of the sliding rod penetrating through the sliding sleeve is fixedly provided with a first pressing plate;
a second pressing plate is fixedly arranged at one end of the outer surface of the sliding sleeve, which is far away from the third baffle plate, second springs are fixedly arranged at the front end and the rear end of the top surface of the second pressing plate, and one end of each second spring, which is far away from the second pressing plate, is fixedly connected with the first pressing plate;
the outer cover of first pressing mechanism is equipped with the guard box, guard box fixed mounting is in third baffle top surface, movable mounting has the balancing weight above the guard box, balancing weight top surface fixed mounting has the third spring, the one end fixed mounting that the balancing weight was kept away from to the third spring has the rotation mounting panel, the rotation mounting panel rotates to be installed in the lighting fixture surface.
Furthermore, the second pressing mechanism comprises a convex plate and an L-shaped sliding plate fixedly arranged on the lower bottom surface of the convex plate, the convex plate comprises a first connecting plate and a second connecting plate which are vertically connected, the left side surface of the first connecting plate is provided with an arc-shaped mounting groove matched with the arc-shaped pressing rod, and the second connecting plate is slidably arranged on the left side surface of the second baffle plate;
the L-shaped sliding plate is fixedly arranged at the right end of the lower bottom surface of the second connecting plate, one end of the L-shaped sliding plate, far away from the second connecting plate, is slidably arranged on the right side surface of the alarm, and the left end of the front side surface of the L-shaped sliding plate is fixedly provided with a pulling rod;
the front end and the rear end of the lower bottom surface of the second connecting plate are fixedly provided with fourth springs, and one ends, far away from the second connecting plate, of the fourth springs are fixedly connected with the top surface of the first baffle.
The invention has the beneficial effects that:
1. according to the invention, through the arrangement of the adjusting frame, the alarm is arranged in the adjusting frame to protect the alarm, and through the arrangement of the connecting lock, the second cover plate can be conveniently opened, so that the alarm can be directly operated.
2. According to the invention, by arranging the first pressing mechanism, an alarm person can use the balancing weight to damage the protection box and press the first pressing plate downwards, so that the U-shaped pressing frame presses the alarm button to complete one-key alarm.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is an exploded view of a portion of the structure of the present invention;
FIG. 4 is an exploded view of a portion of the structure of the present invention;
FIG. 5 is an exploded view of a portion of the structure of the present invention;
FIG. 6 is an exploded view of a portion of the structure of the present invention;
fig. 7 is an exploded view of a partial structure of the present invention.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
As shown in fig. 1 to 2, the networking alarm device 110 for education industry comprises a street lamp bracket 1 and an alarm device 2 installed outside the street lamp bracket 1 in a matching manner, wherein the upper end of the outer surface of the street lamp bracket 1 is provided with a monitoring mechanism 3 in a matching manner, the alarm device 2 comprises an alarm 21 and an adjusting bracket 22 installed outside the alarm 21 in a matching manner, a first base 11 is fixedly installed below the street lamp bracket 1, and the adjusting bracket 22 is fixedly installed on the top surface of the first base 11;
the monitoring mechanism 3 comprises a second base 31 and an L-shaped connecting rod 32 fixedly mounted on the right side surface of the second base 31, the second base 31 is rotatably mounted outside the street lamp holder 1, and a camera 33 is fixedly mounted at one end, far away from the second base 31, of the L-shaped connecting rod 32.
As shown in fig. 3 to 4, an alarm button 211 is slidably mounted on the top surface of the alarm 21, a U-shaped pressing frame 212 is disposed in the center of the top surface of the alarm button 211, a first pressing column 213 is fixedly mounted at the closed end of the U-shaped pressing frame 212, a first pressing mechanism 214 is movably mounted above the first pressing column 213, an arc-shaped pressing rod 215 matched with the first pressing column 213 is movably mounted at the right end of the top surface of the alarm button 211, and a second pressing mechanism 216 is fixedly mounted at the right end of the arc-shaped pressing rod 215;
the adjusting bracket 22 comprises a rotating pedestal 221 and an adjusting box body 222 fixedly installed on the right side surface of the rotating pedestal 221, the rotating pedestal 221 is rotatably installed on the outer surface of the street lamp bracket 1, a vertical extending plate 223 is fixedly installed at the right end of the top surface of the rotating pedestal 221, a first baffle 224 is fixedly installed on the right side surface of the adjusting box body 222, a second baffle 225 is vertically installed at one end, away from the adjusting box body 222, of the top surface of the first baffle 224, a third baffle 226 is vertically installed on the top surface of the second baffle 225, the lower bottom surface of the third baffle 226 is fixedly connected with the top surface of the vertical extending plate 223, a first pressing mechanism 214 is fixedly installed on the top surface of the third baffle 226, and a second pressing mechanism 216 is installed between the right side;
vertical extension board 223 trailing flank fixed mounting has first apron 2231, and vertical extension board 223 leading flank rotates installs second apron 2232, and second apron 2232 right flank fixed mounting has first U type hasp 2233, and second baffle 225 right flank fixed mounting has second U type hasp 2251, and movable mounting has between first U type hasp 2233 and the second U type hasp 2251 connects the lock 2252.
As shown in fig. 5, a connecting partition 2221 is slidably installed in the adjusting box 222, a first spring 2222 is fixedly installed on the lower bottom surface of the connecting partition 2221, one end of the first spring 2222, which is far away from the connecting partition 2221, is fixedly installed at the bottom of the adjusting box 222, one end of the U-shaped pressing frame 212 is in close contact with the alarm button 211, and the other end of the U-shaped pressing frame 212 is fixedly connected with the connecting partition 2221.
As shown in fig. 6, the first pressing mechanism 214 includes a sliding rod 2141 and a sliding sleeve 2142 sleeved outside the sliding rod 2141, a sliding hole 2261 matched with the sliding rod 2141 is formed on the top surface of the third baffle 226, the sliding sleeve 2142 is fixedly installed on the top surface of the third baffle 226, and a first pressing plate 2143 is fixedly installed at one end of the sliding rod 2141 penetrating through the sliding sleeve 2142;
a second pressing plate 2144 is fixedly mounted at one end of the outer surface of the sliding sleeve 2142 away from the third baffle 226, second springs 2145 are fixedly mounted at the front end and the rear end of the top surface of the second pressing plate 2144, and one end of the second spring 2145 away from the second pressing plate 2144 is fixedly connected with the first pressing plate 2143;
the first pressing mechanism 214 is sleeved with a protection box 2146, the protection box 2146 is fixedly mounted on the top surface of the third baffle 226, a counterweight 2147 is movably mounted above the protection box 2146, a third spring 2148 is fixedly mounted on the top surface of the counterweight 2147, a rotating mounting plate 2149 is fixedly mounted at one end of the third spring 2148 far away from the counterweight 2147, and the rotating mounting plate 2149 is rotatably mounted on the outer surface of the street lamp holder 1.
As shown in fig. 7, the second pressing mechanism 216 includes a convex plate 2161 and an L-shaped sliding plate 2162 fixedly installed on the lower bottom surface of the convex plate 2161, the convex plate 2161 includes a first connecting plate 2163 and a second connecting plate 2164 vertically connected, the left side surface of the first connecting plate 2163 is opened with an arc-shaped installation slot 2165 matched with the arc-shaped pressing rod 215, and the second connecting plate 2164 is slidably installed on the left side surface of the second baffle 225;
an L-shaped sliding plate 2162 is fixedly arranged at the right end of the lower bottom surface of the second connecting plate 2164, one end of the L-shaped sliding plate 2162 far away from the second connecting plate 2164 is slidably arranged on the right side surface of the alarm 21, and a pulling rod 2166 is fixedly arranged at the left end of the front side surface of the L-shaped sliding plate 2162;
the front end and the rear end of the lower bottom surface of the second connecting plate 2164 are both fixedly provided with a fourth spring 2167, and one end of the fourth spring 2167 far away from the second connecting plate 2164 is fixedly connected with the top surface of the first baffle 224.
In the actual use process, the alarm 21 is arranged in the adjusting frame 22 through the setting of the adjusting frame 22, the alarm 21 is protected, and the second cover plate 2232 can be conveniently opened through the setting of the connecting lock 2252, so that the alarm 21 is directly operated; through setting up first pressing means 214, the warning personnel can use balancing weight 2147 to destroy guard box 2146, push down first pressure strip 2143, thereby make the U type press frame 212 to press alarm button 211, accomplish a key warning, this kind of setting, first pressing means 214 is airtight to be placed in guard box 2146, during the warning, need destroy to guard box 2146 and can accomplish the warning, thereby effectively avoid traditional protecting sheathing to easily open thereby lead to the emergence of the urgent equipment condition of seeking help of mistake opening, prevent the emergence of the condition that real emergency can not in time salvage.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (6)

1. An educational industry 110 networking alarm device, characterized by: the road lamp stand comprises a road lamp stand (1) and an alarm device (2) which is installed outside the road lamp stand (1) in a matched mode, a monitoring mechanism (3) is installed at the upper end of the outer surface of the road lamp stand (1) in a matched mode, the alarm device (2) comprises an alarm (21) and an adjusting frame (22) which is installed outside the alarm (21) in a matched mode, a first base (11) is fixedly installed below the road lamp stand (1), and the adjusting frame (22) is fixedly installed on the top surface of the first base (11);
an alarm button (211) is slidably mounted on the top surface of the alarm (21), a U-shaped pressing frame (212) is arranged in the center of the top surface of the alarm button (211), a first pressing column (213) is fixedly mounted at the closed end of the U-shaped pressing frame (212), a first pressing mechanism (214) is movably mounted above the first pressing column (213), an arc-shaped pressing rod (215) matched with the first pressing column (213) is movably mounted at the right end of the top surface of the alarm button (211), and a second pressing mechanism (216) is fixedly mounted at the right end of the arc-shaped pressing rod (215);
the adjusting frame (22) comprises a rotating pedestal (221) and an adjusting box body (222) fixedly arranged on the right side surface of the rotating pedestal (221), the rotary pedestal (221) is rotatably arranged on the outer surface of the street lamp stand (1), a vertical extension plate (223) is fixedly arranged at the right end of the top surface of the rotary pedestal (221), a first baffle (224) is fixedly arranged on the right side surface of the adjusting box body (222), a second baffle (225) is vertically arranged at one end of the top surface of the first baffle (224) far away from the adjusting box body (222), a third baffle (226) is vertically arranged on the top surface of the second baffle (225), the lower bottom surface of the third baffle (226) is fixedly connected with the top surface of the vertical extending plate (223), the first pressing mechanism (214) is fixedly arranged on the top surface of the third baffle plate (226), the second pressing mechanism (216) is installed between the right side face of the alarm (21) and the left side face of the second baffle (225) in a matched mode.
2. The networking alarm device of educational industry 110 of claim 1, wherein: monitoring mechanism (3) include second base (31) and L type connecting rod (32) of fixed mounting in second base (31) right flank, second base (31) rotate install in lighting fixture (1) outside, the one end fixed mounting that second base (31) were kept away from in L type connecting rod (32) has camera (33).
3. The networking alarm device of educational industry 110 of claim 1, wherein: vertical extension board (223) trailing flank fixed mounting has first apron (2231), vertical extension board (223) leading flank rotates installs second apron (2232), second apron (2232) right flank fixed mounting has first U type hasp (2233), second baffle (225) right flank fixed mounting has second U type hasp (2251), movable mounting has between first U type hasp (2233) and second U type hasp (2251) to connect and lock (2252).
4. The networking alarm device of educational industry 110 of claim 1, wherein: adjust box (222) slidable mounting and connect baffle (2221), bottom surface fixed mounting has first spring (2222) under connecting baffle (2221), the one end fixed mounting in adjusting box (222) bottom of connecting baffle (2221) is kept away from in first spring (2222), U type is pressed frame (212) one end and alarm button (211) in close contact with, U type is pressed frame (212) other end and is connected baffle (2221) fixed connection.
5. The networking alarm device of educational industry 110 of claim 1, wherein: the first pressing mechanism (214) comprises a sliding rod (2141) and a sliding sleeve (2142) sleeved outside the sliding rod (2141), the top surface of the third baffle plate (226) is provided with a sliding hole (2261) matched with the sliding rod (2141), the sliding sleeve (2142) is fixedly installed on the top surface of the third baffle plate (226), and one end, penetrating through the sliding sleeve (2142), of the sliding rod (2141) is fixedly provided with a first pressing plate (2143);
a second pressing plate (2144) is fixedly installed at one end, far away from the third baffle (226), of the outer surface of the sliding sleeve (2142), second springs (2145) are fixedly installed at the front end and the rear end of the top surface of the second pressing plate (2144), and one end, far away from the second pressing plate (2144), of each second spring (2145) is fixedly connected with the first pressing plate (2143);
first pressing means (214) outside cover is equipped with guard box (2146), guard box (2146) fixed mounting is in third baffle (226) top surface, guard box (2146) top movable mounting has balancing weight (2147), balancing weight (2147) top surface fixed mounting has third spring (2148), the one end fixed mounting that balancing weight (2147) were kept away from in third spring (2148) has rotation mounting panel (2149), rotation mounting panel (2149) rotate to be installed in street lamp frame (1) surface.
6. The networking alarm device of educational industry 110 of claim 1, wherein: the second pressing mechanism (216) comprises a convex plate (2161) and an L-shaped sliding plate (2162) fixedly mounted on the lower bottom surface of the convex plate (2161), the convex plate (2161) comprises a first connecting plate (2163) and a second connecting plate (2164) which are vertically connected, the left side surface of the first connecting plate (2163) is provided with an arc-shaped mounting groove (2165) matched with the arc-shaped pressing rod (215), and the second connecting plate (2164) is slidably mounted on the left side surface of the second baffle plate (225);
the L-shaped sliding plate (2162) is fixedly arranged at the right end of the lower bottom surface of the second connecting plate (2164), one end of the L-shaped sliding plate (2162) far away from the second connecting plate (2164) is slidably arranged on the right side surface of the alarm (21), and the left end of the front side surface of the L-shaped sliding plate (2162) is fixedly provided with a pulling rod (2166);
the front end and the rear end of the lower bottom surface of the second connecting plate (2164) are fixedly provided with fourth springs (2167), and one end, far away from the second connecting plate (2164), of each fourth spring (2167) is fixedly connected with the top surface of the first baffle (224).
CN202010519586.8A 2020-06-09 2020-06-09 110 networking alarm device of education trade Withdrawn CN111681400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010519586.8A CN111681400A (en) 2020-06-09 2020-06-09 110 networking alarm device of education trade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010519586.8A CN111681400A (en) 2020-06-09 2020-06-09 110 networking alarm device of education trade

Publications (1)

Publication Number Publication Date
CN111681400A true CN111681400A (en) 2020-09-18

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ID=72454196

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010519586.8A Withdrawn CN111681400A (en) 2020-06-09 2020-06-09 110 networking alarm device of education trade

Country Status (1)

Country Link
CN (1) CN111681400A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112085910A (en) * 2020-09-28 2020-12-15 浙江天盛机械有限公司 Emergency call alarm column and installation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112085910A (en) * 2020-09-28 2020-12-15 浙江天盛机械有限公司 Emergency call alarm column and installation method thereof
CN112085910B (en) * 2020-09-28 2023-08-22 浙江天盛机械有限公司 Alarm column for emergency call and installation method thereof

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Application publication date: 20200918