CN110428987B - Safety protection device - Google Patents
Safety protection device Download PDFInfo
- Publication number
- CN110428987B CN110428987B CN201910615655.2A CN201910615655A CN110428987B CN 110428987 B CN110428987 B CN 110428987B CN 201910615655 A CN201910615655 A CN 201910615655A CN 110428987 B CN110428987 B CN 110428987B
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- CN
- China
- Prior art keywords
- electrode
- supporting seat
- base
- fixedly connected
- electromagnet
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- 230000005611 electricity Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
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
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a safety protection device, and relates to the technical field of safety protection devices; the electromagnetic switch comprises a base, the rigid coupling has the supporting seat on the base, it is equipped with the guide bar to insert on the supporting seat, guide bar and supporting seat sliding connection, guide bar one end rigid coupling has the electro-magnet, the cover is equipped with the extension spring on the guide bar, extension spring one end is supported and is leaned on the supporting seat, the extension spring other end supports and leans on the electro-magnet, be connected with anodal and negative pole on the electro-magnet, the electro-magnet is kept away from guide bar one side and is equipped with magnet, the magnet rigid coupling is on the base, be equipped with the device that pushes away the floodgate on the base, when the. The invention provides a safety protection device, which can automatically push down a switch by a brake pushing device when power is off, thereby preventing the instrument from restarting when a call is coming. In addition, an alarm can be given; the stability is high.
Description
Technical Field
The invention belongs to the field of safety protection devices, and particularly relates to a safety protection device capable of automatically turning off a switch during power failure.
Background
Sometimes, a laboratory has a sudden power failure, at this time, scientific research personnel need to manually turn off the instrument, if the scientific research personnel forget to turn off the instrument and directly leave the laboratory, the laboratory equipment can be restarted next time when a sudden power is received, and at this time, accidents such as fire disasters and the like can be easily caused if no personnel are in the laboratory.
Disclosure of Invention
The invention aims to overcome the defects that the instrument needs to be powered off manually and is easy to forget in the prior art, and provides a safety protection device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a safety protection device, its characterized in that, includes the base, the rigid coupling has the supporting seat on the base, insert on the supporting seat and be equipped with the guide bar, guide bar and supporting seat sliding connection, guide bar one end rigid coupling has the electro-magnet, the cover is equipped with the extension spring on the guide bar, extension spring one end is supported and is leaned on the supporting seat, the extension spring other end is supported and is leaned on the electro-magnet, be connected with positive pole and negative pole on the electro-magnet, the electro-magnet is kept away from guide bar one side and is equipped with magnet, the magnet rigid coupling is on the base, be equipped with the device that pushes away the floodgate on the base. At ordinary times, the electromagnet is adsorbed on the magnet, the third electrode abuts against the first electrode, the fourth electrode abuts against the second electrode, the brake pushing device does not work, when the power is off, the electromagnet is separated from the magnet, the brake pushing device works to push the electric brake downwards, and the electric brake is closed.
Preferably, the brake pushing device comprises a battery, a switching disc, a first electrode, a second electrode, a third electrode, a fourth electrode, a servo motor, a rack, a gear, a lead screw, a push plate, a second guide rod, a second support seat fixedly connected to the base, and a third support seat fixedly connected to the base, wherein the rack is fixedly connected to the electromagnet, the gear is meshed with the rack, a coaxial rotating shaft is fixedly connected to the gear, the rotating shaft penetrates through the second support seat and is rotatably connected with the second support seat, the switching disc is vertically and fixedly connected to the rotating shaft, the switching disc is provided with the third electrode and the fourth electrode, the shafts of the third electrode, the fourth electrode and the rotating shaft are positioned on the same plane, the distance from the third electrode to the rotating shaft is equal to the distance from the fourth electrode to the rotating shaft, the first electrode and the second electrode are fixed to the base, and the third electrode is abutted against the first electrode or the second electrode, the fourth electrode supports and leans on second electrode or first electrode, a utmost point and the third electrode electricity of battery are connected, another utmost point and the fourth electrode electricity of battery are connected, first electrode is connected with servo motor's an utmost point, the second electrode is connected with servo motor's another utmost point, servo motor is connected with rather than coaxial lead screw, lead screw threaded connection has the push pedal, be connected with the second guide bar in the push pedal, the second guide bar pass the third supporting seat and with third supporting seat sliding connection, the electric brake can be promoted downwards in second guide bar bottom. When the power is off, the positive electrode and the negative electrode are powered off, the magnetic force on the electromagnet disappears, the electromagnet moves towards the direction away from the magnet under the action of the tension spring, at the moment, the rack moves, the rack drives the gear to rotate, the gear drives the switching disc to rotate, the third electrode and the fourth electrode rotate, if the original third electrode is abutted against the first electrode, the fourth electrode is abutted against the second electrode, after the rotation, the third electrode is abutted against the second electrode, the fourth electrode is abutted against the first electrode, the circuit is switched on, the servo motor operates to drive the screw rod to rotate, the screw rod drives the push plate to move downwards, the push plate drives the second guide rod to move downwards, and the bottom end of the second guide rod pushes the electric brake downwards so as to turn off the electric brake; the positive pole and the negative pole are electrified, the magnetic force on the electromagnet is recovered, the electromagnet is adsorbed on the magnet at the moment, the rack moves reversely, the switching disc rotates reversely, the third electrode supports against the first electrode again at the moment, the fourth electrode supports against the second electrode again at the moment, the servo motor rotates reversely, and the second guide rod moves upwards.
Preferably, a delay relay is connected in series to a circuit in which the servo motor is located. The circuit is automatically disconnected after the time delay relay 5s, and the servo motor is prevented from excessively operating.
Preferably, an alarm is connected in series to a circuit in which the servo motor is provided. When the circuit is on, the alarm gives an alarm.
Preferably, the brake pushing device can also be: the brake pushing device comprises a first electrode, a second electrode, a battery and an electric push rod for pushing an electric brake downwards, wherein the first electrode is fixedly connected to the electromagnet, the second electrode is fixedly connected to the base, the second electrode is located on a motion path of the first electrode, one pole of the battery is electrically connected with the second electrode, the other pole of the battery is electrically connected with one pole of the electric push rod, and the other pole of the electric push rod is electrically connected with the first electrode. When the power is off, the electromagnet loses magnetic force, the first electrode moves towards the second electrode, the first electrode abuts against the second electrode, the circuit is connected, and the electric brake is pushed down by the electric push rod.
Preferably, a delay relay is connected in series with a circuit on which the electric push rod is located. The circuit is automatically disconnected after the time delay relay 5s, and the servo motor is prevented from excessively operating.
Preferably, an alarm is connected in series to a circuit in which the electric push rod is located. When the circuit is on, the alarm gives an alarm.
The invention has the beneficial effects that: the invention provides a safety protection device, which can automatically push down a switch by a brake pushing device when power is off, thereby preventing the instrument from restarting when a call is coming. In addition, an alarm can be given; the stability is high.
Drawings
FIG. 1 is a schematic view of example 1;
FIG. 2 is an enlarged view of FIG. 1 at B;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a schematic view of embodiment 1 at power-off;
FIG. 5 is a schematic view of example 2;
FIG. 6 is a schematic view of the embodiment 2 at the time of power-off.
In the figure: the device comprises a base 1, a supporting seat 2, a guide rod 3, an anode 4, a cathode 5, a battery 6, a switching disc 7, a first electrode 8, a second electrode 9, a servo motor 10, a rack 11, a gear 12, a second supporting seat 13, a rotating shaft 14, a third electrode 15, a fourth electrode 16, a lead screw 17, a push plate 18, a second guide rod 19, a third supporting seat 20, an electric push rod 21 and a time delay relay 22.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example 1:
fig. 1 to 4 are safety protection devices, which include a base 1, wherein a support base 2 is fixedly connected to the base 1, a guide rod 3 is inserted into the support base 2, the guide rod 3 is slidably connected to the support base 2, an electromagnet is fixedly connected to one end of the guide rod 3, a tension spring is sleeved on the guide rod 3, one end of the tension spring abuts against the support base 2, the other end of the tension spring abuts against the electromagnet, the electromagnet is connected to an anode 4 and a cathode 5, a magnet is arranged on one side of the electromagnet away from the guide rod 3, the magnet is fixedly connected to the base 1, a brake pushing device is arranged on the base 1, and when the electromagnet is powered off, the brake pushing device pushes a brake downwards; the brake pushing device comprises a battery 6, a switching disc 7, a first electrode 8, a second electrode 9, a third electrode 15, a fourth electrode 16, a servo motor 10, a rack 11, a gear 12, a lead screw 17, a push plate 18, a second guide rod 19, a second supporting seat 13 fixedly connected to the base 1, and a third supporting seat 20 fixedly connected to the base 1, wherein the rack 11 is fixedly connected to an electromagnet, the gear 12 is meshed with the rack 11, a coaxial rotating shaft 14 is fixedly connected to the gear 12, the rotating shaft 14 penetrates through the second supporting seat 13 and is rotatably connected with the second supporting seat 13, the switching disc 7 is vertically and fixedly connected to the rotating shaft 14, the switching disc 7 is provided with the third electrode 15 and the fourth electrode 16, the axes of the third electrode 15, the fourth electrode 16 and the rotating shaft 14 are positioned on the same plane, and the distance from the third electrode 15 to the rotating shaft 14 is equal to the distance from the fourth electrode 16 to the rotating shaft 14, the first electrode 8 and the second electrode 9 are fixed on the base 1, the third electrode 15 is abutted against the first electrode 8 or the second electrode 9, the fourth electrode 16 is abutted against the second electrode 9 or the first electrode 8, one pole of the battery 6 is electrically connected with the third electrode 15, the other pole of the battery 6 is electrically connected with the fourth electrode 16, the first electrode 8 is connected with one pole of the servo motor 10, the second electrode 9 is connected with the other pole of the servo motor 10, the servo motor 10 is connected with a lead screw 17 coaxial with the servo motor, the lead screw 17 is in threaded connection with a push plate 18, the push plate 18 is connected with a second guide rod 19, the second guide rod 19 penetrates through the third support seat 20 and is in sliding connection with the third support seat 20, and the bottom end of the second guide rod 19 can push an electric brake downwards; a delay relay 22 is connected in series with a circuit where the servo motor 10 is located; an alarm is connected in series to a circuit in which the servo motor 10 is located.
The use process of the embodiment is as follows:
when the power is off, the positive electrode 4 and the negative electrode 5 are powered off, the magnetic force on the electromagnet disappears, the electromagnet moves away from the magnet under the action of the tension spring, at the moment, the rack 11 moves, the rack 11 drives the gear 12 to rotate, the gear 12 drives the switching disc 7 to rotate, the third electrode 15 and the fourth electrode 16 rotate, if the original third electrode 15 is abutted against the first electrode 8 and the fourth electrode 16 is abutted against the second electrode 9, after the rotation, the third electrode 15 is abutted against the second electrode 9 and the fourth electrode 16 is abutted against the first electrode 8, the circuit is switched on, the servo motor 10 operates to drive the screw 17 to rotate, the screw 17 drives the push plate 18 to move downwards, the push plate 18 drives the second guide rod 19 to move downwards, and the bottom end of the second guide rod 19 pushes the electric brake downwards, so that the electric brake is turned off; meanwhile, the alarm gives out a warning that the switch is closed when the power is off; reminding people; after 5s, the time delay relay 22 works to disconnect the circuit and prevent the servo motor from running excessively.
When the power is turned on again, the positive electrode 4 and the negative electrode 5 are turned on, the magnetic force on the electromagnet is recovered, the electromagnet is adsorbed on the magnet, the rack 11 moves in the reverse direction, the switching disc 7 rotates in the reverse direction by 180 degrees, the third electrode 15 abuts against the first electrode 8 again, the fourth electrode 16 abuts against the second electrode 9 again, the servo motor rotates in the reverse direction, the second guide rod 19 moves upwards, and meanwhile, the alarm gives an alarm that the power is turned on and the switch is turned on; and 5s, reminding personnel, and operating the delay relay 22 to disconnect the circuit and prevent the servo motor from excessively operating.
Example 2:
as shown in fig. 5 and 6, the present embodiment is substantially the same as embodiment 1, except that: the brake pushing device comprises a first electrode 8, a second electrode 9, a battery 6 and an electric push rod 21 for pushing an electric brake downwards, wherein the first electrode 8 is fixedly connected to an electromagnet, the second electrode 9 is fixedly connected to the base 1, the second electrode 9 is located on a motion path of the first electrode 8, one pole of the battery 6 is electrically connected with the second electrode 9, the other pole of the battery 6 is electrically connected with one pole of the electric push rod 21, and the other pole of the electric push rod 21 is electrically connected with the first electrode 8; a circuit on which the electric push rod 21 is arranged is connected with a delay relay 22 in series; an alarm is connected in series to the circuit where the electric push rod 21 is located.
The use process of the embodiment is as follows:
when the power is off, the electromagnet loses magnetic force, the first electrode 8 moves towards the second electrode 9, the first electrode 8 abuts against the second electrode 9, the circuit is connected, the electric brake is pushed down by the electric push rod 21, after the electric brake works for 5s, the delay relay 22 works to disconnect the circuit, and meanwhile, the alarm gives an alarm.
Claims (3)
1. A safety protection device is characterized by comprising a base, wherein a supporting seat is fixedly connected to the base, a guide rod is inserted into the supporting seat and is connected with the supporting seat in a sliding mode, an electromagnet is fixedly connected to one end of the guide rod, a tension spring is sleeved on the guide rod, one end of the tension spring abuts against the supporting seat, the other end of the tension spring abuts against the electromagnet, the electromagnet is connected with a positive electrode and a negative electrode, a magnet is arranged on one side, away from the guide rod, of the electromagnet and fixedly connected to the base, a brake pushing device is arranged on the base, and when the electromagnet is powered off, the brake pushing device pushes a brake downwards;
the brake pushing device comprises a battery, a switching disc, a first electrode, a second electrode, a third electrode, a fourth electrode, a servo motor, a rack, a gear, a lead screw, a push plate, a second guide rod, a second supporting seat fixedly connected to the base and a third supporting seat fixedly connected to the base, wherein the rack is fixedly connected to the electromagnet, the gear is meshed with the rack, a coaxial rotating shaft is fixedly connected to the gear, the rotating shaft penetrates through the second supporting seat and is rotatably connected with the second supporting seat, the switching disc is vertically and fixedly connected to the rotating shaft, the switching disc is provided with the third electrode and the fourth electrode, the shafts of the third electrode, the fourth electrode and the rotating shaft are positioned on the same plane, the distance from the third electrode to the rotating shaft is equal to the distance from the fourth electrode to the rotating shaft, the first electrode and the second electrode are fixed to the base, and the third electrode is abutted against the first electrode or the second electrode, the fourth electrode supports and leans on second electrode or first electrode, a utmost point and the third electrode electricity of battery are connected, another utmost point and the fourth electrode electricity of battery are connected, first electrode is connected with servo motor's an utmost point, the second electrode is connected with servo motor's another utmost point, servo motor is connected with rather than coaxial lead screw, lead screw threaded connection has the push pedal, be connected with the second guide bar in the push pedal, the second guide bar pass the third supporting seat and with third supporting seat sliding connection, the electric brake can be promoted downwards in second guide bar bottom.
2. The safety protection device according to claim 1, wherein a time delay relay is connected in series with a circuit on which the servo motor is arranged.
3. A safety arrangement according to claim 1 or claim 2, wherein an alarm is connected in series with the circuit in which the servo motor is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615655.2A CN110428987B (en) | 2019-07-09 | 2019-07-09 | Safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615655.2A CN110428987B (en) | 2019-07-09 | 2019-07-09 | Safety protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110428987A CN110428987A (en) | 2019-11-08 |
| CN110428987B true CN110428987B (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910615655.2A Active CN110428987B (en) | 2019-07-09 | 2019-07-09 | Safety protection device |
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| CN (1) | CN110428987B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932179B (en) * | 2019-11-20 | 2021-04-23 | 国网山东省电力公司东营供电公司 | Line stringing tightening mechanism for capital construction engineering |
| CN110864004B (en) * | 2019-11-29 | 2020-10-30 | 郑州财经学院 | Case fan control device |
| CN111417280B (en) * | 2020-05-22 | 2021-02-02 | 东莞市技师学院(东莞市高级技工学校) | Detection apparatus for electrical automation equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645212Y (en) * | 2003-08-29 | 2004-09-29 | 唐建国 | Single-phase electric brake capable of timing switching off |
| CN2748335Y (en) * | 2004-09-29 | 2005-12-28 | 刘强 | Automobile warning lamp for emergency brake |
| CN201608129U (en) * | 2009-12-08 | 2010-10-13 | 李佳旺 | Electric brake device |
| CN108683154A (en) * | 2018-06-19 | 2018-10-19 | 郑州航空工业管理学院 | A kind of over-pressure safety device of Internet of Things radiofrequency launcher |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262965B (en) * | 2010-05-31 | 2013-09-25 | 维熹科技股份有限公司 | Microswitch |
-
2019
- 2019-07-09 CN CN201910615655.2A patent/CN110428987B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645212Y (en) * | 2003-08-29 | 2004-09-29 | 唐建国 | Single-phase electric brake capable of timing switching off |
| CN2748335Y (en) * | 2004-09-29 | 2005-12-28 | 刘强 | Automobile warning lamp for emergency brake |
| CN201608129U (en) * | 2009-12-08 | 2010-10-13 | 李佳旺 | Electric brake device |
| CN108683154A (en) * | 2018-06-19 | 2018-10-19 | 郑州航空工业管理学院 | A kind of over-pressure safety device of Internet of Things radiofrequency launcher |
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| Publication number | Publication date |
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| CN110428987A (en) | 2019-11-08 |
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