CN110428987A - A kind of safety guard - Google Patents
A kind of safety guard Download PDFInfo
- Publication number
- CN110428987A CN110428987A CN201910615655.2A CN201910615655A CN110428987A CN 110428987 A CN110428987 A CN 110428987A CN 201910615655 A CN201910615655 A CN 201910615655A CN 110428987 A CN110428987 A CN 110428987A
- Authority
- CN
- China
- Prior art keywords
- electrode
- guide rod
- electromagnet
- support base
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Physics & Mathematics (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of safety guards, are related to safety guard technical field；Including pedestal, support base is connected on the pedestal, guide rod is inserted on the support base, the guide rod is slidably connected with support base, described guide rod one end is connected with electromagnet, tension spring is arranged on the guide rod, described tension spring one end is resisted against on support base, the tension spring other end is resisted against on electromagnet, and positive electrode and negative electrode are connected on the electromagnet, and the electromagnet is equipped with magnet far from guide rod side, the magnet is fixed on pedestal, the pedestal is equipped with and pushes away brake gear, and when the electromagnet is powered off, the brake gear that pushes away pushes down on electric brake.The present invention proposes a kind of safety guard, and instrument when brake gear automatically pushes down on electric brake to prevent incoming call is pushed away when power-off and is restarted.In addition it can sound an alarm；Stability is high.
Description
Technical field
The invention belongs to the safety that can automatically turn off electric brake when a kind of safety guard field, in particular to power-off to protect
Protection unit.
Background technique
Sometimes laboratory can have a power failure suddenly, and at this time scientific research personnel needs manually to turn off instrument, if forgetting to turn off
Instrument and directly off laboratory, next time incoming call suddenly, experiment equipment may restart, at this time if without personnel
If laboratory, it is easy to the accidents such as fire can be caused.
Summary of the invention
The purpose of the invention is to overcome the prior art to need to power off to instrument manually, it is easy the shortcomings that forgeing, is proposed
A kind of safety guard pushes away instrument when brake gear automatically pushes down on electric brake to prevent incoming call when power-off
Restarting.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of safety guard, which is characterized in that including pedestal, support base is connected on the pedestal, on the support base
It is inserted with guide rod, the guide rod is slidably connected with support base, and described guide rod one end is connected with electromagnet, the guide rod
On be arranged with tension spring, described tension spring one end is resisted against on support base, and the tension spring other end is resisted against on electromagnet, the electromagnetism
Positive electrode and negative electrode are connected on iron, the electromagnet is equipped with magnet far from guide rod side, and the magnet is fixed on pedestal, institute
Pedestal is stated equipped with brake gear is pushed away, when the electromagnet is powered off, the brake gear that pushes away pushes down on electric brake.Usually, electromagnet adsorbs
On magnet, third electrode is abutted together with first electrode, and the 4th electrode is abutted together with second electrode, pushes away brake gear not
Work, when power-off, electromagnet is separated from magnet, is pushed away brake gear work, electric brake is pushed down on, electric brake is closed.
Preferably, push away brake gear include battery, switch plate, first electrode, second electrode, third electrode, the 4th electrode,
Servo motor, gear, lead screw, push plate, the second guide rod, the second support base being fixed on pedestal, is fixed on pedestal rack gear
Third support base, the rack gear is fixed on electromagnet, the wheel and rack engagement, is connected on the gear coaxial
Shaft, the shaft pass through the second support base and are rotatablely connected with the second support base, and the switch plate is vertically fixed in shaft,
The switch plate is equipped with third electrode and the 4th electrode, and the axis of the third electrode, the 4th electrode and shaft is in same flat
Face, the distance of the third electrode to shaft are equal to the 4th electrode to the distance of shaft, and the first electrode and second electrode are solid
It is scheduled on pedestal, the third electrode is resisted against in first electrode or second electrode, and the 4th electrode is resisted against second electrode
Or in first electrode, a pole of the battery is electrically connected with third electrode, and another pole of the battery is electrically connected with the 4th electrode,
Another pole of the connection of one pole of the first electrode and servo motor, the second electrode and servo motor connects, the servo
Motor is connected with coaxial lead screw, and the threads of lead screw is connected with push plate, and the second guide rod, institute are connected in the push plate
The second guide rod is stated across third support base and is slidably connected with third support base, second guide rod bottom end can push down on
Electric brake.When power-off, positive electrode and negative electrode are powered off, and the magnetic force on electromagnet disappears, under the action of tension spring, electromagnet direction
Moved far from magnet direction, at this point, rack movement, rack drives gear rotation, gear drives switch plate rotation, third electrode with
4th electrode rotates, it is assumed that original third electrode was abutted together with first electrode, the 4th electrode and second electrode against
Together, then, after rotation, third electrode is abutted together with second electrode, and the 4th electrode is abutted together with first electrode, electricity
Road is connected, and servo motor operation drives lead screw rotation, and lead screw drives push plate to move downward, and push plate drives the second guide rod downward
Movement, the second guide rod bottom end pushes down on electric brake, so that electric brake be turned off；Positive electrode and negative electrode are powered, the magnetic force on electromagnet
Restore, electromagnet is adsorbed on magnet at this time, rack gear counter motion, and switch plate rotates backward °, at this time third electrode again against
On the first electrode, the 4th electrode is again against on the second electrode, at this point, servo motor rotates backward, the second guide rod to
Upper movement.
Preferably, being in series with time-delay relay on circuit where servo motor.After time-delay relay 5s certainly by circuit
Dynamic circuit breaker is opened, and prevents servo motor from excessively running.
Preferably, being in series with alarm device on circuit where servo motor.After circuit has led to, alarm device issues police
Report.
Preferably, pushing away brake gear device may also is that pushing away brake gear includes first electrode, second electrode, battery, is used for
The electric pushrod of electric brake is pushed down on, the first electrode is fixed on electromagnet, and the second electrode is fixed on pedestal, institute
Second electrode is stated to be located on first electrode motion path, a pole of the battery is electrically connected with second electrode, the battery it is another
One pole is electrically connected with a pole of electric pushrod, and another pole of the electric pushrod is electrically connected with first electrode.When power-off, electromagnet
Magnetic force is lost, first electrode is moved towards second electrode, and first electrode is against on the second electrode, and circuit is connected, electric pushrod
It will be pushed away under electric brake.
Preferably, being in series with time-delay relay on circuit where electric pushrod.After time-delay relay 5s certainly by circuit
Dynamic circuit breaker is opened, and prevents servo motor from excessively running.
Preferably, being in series with alarm device on circuit where electric pushrod.After circuit has led to, alarm device issues police
Report.
The beneficial effects of the present invention are: the present invention proposes a kind of safety guard, brake gear is pushed away when power-off certainly
It is dynamic to push down on electric brake, to prevent instrument when incoming call from restarting.In addition it can sound an alarm；Stability is high.
Detailed description of the invention
Fig. 1 is the schematic diagram of embodiment 1；
Fig. 2 is enlarged drawing at the B of Fig. 1；
Fig. 3 is the A-A cross-sectional view of Fig. 1；
Fig. 4 is the schematic diagram of embodiment 1 when power is off；
Fig. 5 is the schematic diagram of embodiment 2；
Fig. 6 is the schematic diagram of embodiment 2 when power is off.
In figure: pedestal 1, support base 2, guide rod 3, anode 4, cathode 5, battery 6, switch plate 7, the 8, second electricity of first electrode
Pole 9, servo motor 10, rack gear 11, gear 12, the second support base 13, shaft 14, third electrode 15, the 4th electrode 16, lead screw
17, push plate 18, the second guide rod 19, third support base 20, electric pushrod 21, time-delay relay 22.
Specific embodiment
The present invention is further elaborated on reference to the accompanying drawings and detailed description:
Embodiment 1:
Fig. 1 to Fig. 4 is a kind of safety guard, including pedestal 1, is connected with support base 2, the support base 2 on the pedestal 1
On be inserted with guide rod 3, the guide rod 3 is slidably connected with support base 2, and described 3 one end of guide rod is connected with electromagnet, described
Tension spring is arranged on guide rod 3, described tension spring one end is resisted against on support base 2, and the tension spring other end is resisted against on electromagnet,
Anode 4 and cathode 5 are connected on the electromagnet, the electromagnet is equipped with magnet far from 3 side of guide rod, and the magnet is affixed
On pedestal 1, the pedestal 1 is equipped with and pushes away brake gear, and when the electromagnet is powered off, the brake gear that pushes away pushes down on electric brake；It pushes away
Brake gear include battery 6, switch plate 7, first electrode 8, second electrode 9, third electrode 15, the 4th electrode 16, servo motor 10,
Rack gear 11, lead screw 17, push plate 18, the second guide rod 19, the second support base 13 being fixed on pedestal 1, is fixed in bottom at gear 12
Third support base 20 on seat 1, the rack gear 11 are fixed on electromagnet, and the gear 12 is engaged with rack gear 11, the gear
Coaxial shaft 14 is connected on 12, the shaft 14 passes through the second support base 13 and is rotatablely connected with the second support base 13, institute
It states switch plate 7 to be vertically fixed in shaft 14, the switch plate 7 is equipped with third electrode 15 and the 4th electrode 16, the third
The axis of electrode 15, the 4th electrode 16 and shaft 14 is in same plane, and the distance of the third electrode 15 to shaft 14 is equal to the
Four electrodes 16 arrive the distance of shaft 14, and the first electrode 8 is fixed on pedestal 1 with second electrode 9, and the third electrode 15 supports
It leans against in first electrode 8 or second electrode 9, the 4th electrode 16 is resisted against in second electrode 9 or first electrode 8, the electricity
One pole in pond 6 is electrically connected with third electrode 15, and another pole of the battery 6 is electrically connected with the 4th electrode 16, the first electrode 8
It is connect with a pole of servo motor 10, the second electrode 9 is connect with another pole of servo motor 10, and the servo motor 10 connects
It is connected to coaxial lead screw 17, the lead screw 17 is threaded with push plate 18, is connected with the second guide rod in the push plate 18
19, second guide rod 19 passes through third support base 20 and is slidably connected with third support base 20, second guide rod 19
Bottom end can push down on electric brake；Time-delay relay 22 is in series on circuit where servo motor 10；Where servo motor 10
Alarm device is in series on circuit.
The present embodiment use process:
When power-off, anode 4 is powered off with cathode 5, and the magnetic force on electromagnet disappears, under the action of tension spring, electromagnet court
It is moved to far from magnet direction, at this point, rack gear 11 moves, rack gear 11 is rotated with moving gear 12, and gear 12 drives 7 turns of switch plate
Dynamic, third electrode 15 rotates with the 4th electrode 16, it is assumed that and original third electrode 15 is abutted together with first electrode 8, the
Four electrodes 16 are abutted together with second electrode 9, then, after rotation, third electrode 15 is abutted together with second electrode 9, and the 4th
Electrode 16 is abutted together with first electrode 8, and circuit is connected, and servo motor 10 is run, and lead screw 17 is driven to rotate, and lead screw 17 drives
Push plate 18 moves downward, and push plate 18 drives the second guide rod 19 to move downward, and 19 bottom end of the second guide rod pushes down on electric brake, from
And electric brake is turned off；Meanwhile alarm device issues the warning of " the electricity went off, and electric brake is turned off "；Prompting personnel；After 5s, be delayed relay
Device 22 works, and circuit is disconnected, prevents servo motor from excessively running.
After being re-energised, anode 4 is powered with cathode 5, and the magnetic force on electromagnet restores, and electromagnet is adsorbed on magnetic at this time
On iron, 11 counter motion of rack gear, switch plate 7 rotates backward 180 °, and third electrode 15 is resisted against again in first electrode 8 at this time,
4th electrode 16 is resisted against again in second electrode 9, at this point, servo motor rotates backward, the second guide rod 19 is moved upwards, together
When, alarm device issues the warning of " being powered, electric brake please be opened "；Prompting personnel, after 5s, time-delay relay 22 works, by circuit
It disconnects, prevents servo motor from excessively running.
Embodiment 2:
Shown in Fig. 5, Fig. 6, the present embodiment substantially situation and embodiment 1 are consistent, the difference is that: pushing away brake gear includes the first electricity
Pole 8, second electrode 9, battery 6, the electric pushrod 21 for pushing down on electric brake, the first electrode 8 are fixed on electromagnet,
The second electrode 9 is fixed on pedestal 1, and the second electrode 9 is located on 8 motion path of first electrode, and the one of the battery 6
Pole is electrically connected with second electrode 9, and another pole of the battery 6 is electrically connected with a pole of electric pushrod 21, the electric pushrod 21
Another pole be electrically connected with first electrode 8；Time-delay relay 22 is in series on circuit where electric pushrod 21；Electric pushrod 21
Alarm device is in series on the circuit at place.
The present embodiment use process:
When power-off, electromagnet loses magnetic force, and first electrode 8 is moved towards second electrode 9, and first electrode 8 is resisted against second electrode 9
On, circuit is connected, and electric pushrod 21 will push away under electric brake, and after the 5s that works, time-delay relay 22 works, and circuit is disconnected, alert simultaneously
Report device sounds an alarm.
Claims (7)
1. a kind of safety guard, which is characterized in that including pedestal, support base, the support base are connected on the pedestal
On be inserted with guide rod, the guide rod is slidably connected with support base, and described guide rod one end is connected with electromagnet, the guiding
Tension spring is arranged on bar, described tension spring one end is resisted against on support base, and the tension spring other end is resisted against on electromagnet, the electricity
Positive electrode and negative electrode are connected on magnet, the electromagnet is equipped with magnet far from guide rod side, and the magnet is fixed on pedestal,
The pedestal is equipped with and pushes away brake gear, and when the electromagnet is powered off, the brake gear that pushes away pushes down on electric brake.
2. a kind of safety guard according to claim 1, which is characterized in that the brake gear that pushes away includes battery, cuts
Removable disk, first electrode, second electrode, third electrode, the 4th electrode, servo motor, rack gear, gear, lead screw, push plate, second are led
To bar, the second support base being fixed on pedestal, the third support base being fixed on pedestal, the rack gear is fixed in electromagnet
On, wheel and rack engagement is connected with coaxial shaft on the gear, and the shaft passes through the second support base and with the
The rotation connection of two support bases, the switch plate are vertically fixed in shaft, and the switch plate is equipped with third electrode and the 4th electricity
Pole, the axis of the third electrode, the 4th electrode and shaft are in same plane, and the distance of the third electrode to shaft is equal to the
To the distance of shaft, the first electrode is fixed on the base four electrodes with second electrode, and the third electrode is resisted against first
On electrode or second electrode, the 4th electrode is resisted against in second electrode or first electrode, a pole of the battery and third
Electrode electrical connection, another pole of the battery are electrically connected with the 4th electrode, the pole connection of the first electrode and servo motor,
The connection of another pole of the second electrode and servo motor, the servo motor are connected with coaxial lead screw, the lead screw
It is threaded with push plate, is connected with the second guide rod in the push plate, second guide rod passes through third support base and with the
Three support bases are slidably connected, and second guide rod bottom end can push down on electric brake.
3. a kind of safety guard according to claim 2, which is characterized in that on the circuit where the servo motor
It is in series with time-delay relay.
4. a kind of safety guard according to claim 2 or 3, which is characterized in that the electricity where the servo motor
Road is in series with alarm device.
5. a kind of safety guard according to claim 1, which is characterized in that the brake gear that pushes away includes the first electricity
Pole, second electrode, battery, the electric pushrod for pushing down on electric brake, the first electrode are fixed on electromagnet, and described
Two electrodes are fixed on pedestal, and the second electrode is located on first electrode motion path, a pole of the battery and the second electricity
Pole electrical connection, another pole of the battery are electrically connected with a pole of electric pushrod, another pole of the electric pushrod and the first electricity
Pole electrical connection.
6. a kind of safety guard according to claim 5, which is characterized in that on the circuit where the electric pushrod
It is in series with time-delay relay.
7. a kind of safety guard according to claim 5 or 6, which is characterized in that the electricity where the electric pushrod
Road is in series with alarm device.
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 true CN110428987A (en) | 2019-11-08 |
| CN110428987B CN110428987B (en) | 2021-03-05 |
Family
ID=68410395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910615655.2A Active CN110428987B (en) | 2019-07-09 | 2019-07-09 | Safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110428987B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864004A (en) * | 2019-11-29 | 2020-03-06 | 郑州财经学院 | Case fan control device |
| CN110932179A (en) * | 2019-11-20 | 2020-03-27 | 国网山东省电力公司东营供电公司 | Line stringing tightening mechanism for capital construction engineering |
| CN111417280A (en) * | 2020-05-22 | 2020-07-14 | 东莞市技师学院(东莞市高级技工学校) | Detection apparatus for electrical automation equipment |
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| 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 |
| US20120139674A1 (en) * | 2010-05-31 | 2012-06-07 | Well Shin Technology Co., Ltd. | Micro switch |
| 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 |
-
2019
- 2019-07-09 CN CN201910615655.2A patent/CN110428987B/en active Active
Patent Citations (5)
| 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 |
| US20120139674A1 (en) * | 2010-05-31 | 2012-06-07 | Well Shin Technology Co., Ltd. | Micro switch |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932179A (en) * | 2019-11-20 | 2020-03-27 | 国网山东省电力公司东营供电公司 | Line stringing tightening mechanism for capital construction engineering |
| 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 |
| CN110864004A (en) * | 2019-11-29 | 2020-03-06 | 郑州财经学院 | Case fan control device |
| CN110864004B (en) * | 2019-11-29 | 2020-10-30 | 郑州财经学院 | Case fan control device |
| CN111417280A (en) * | 2020-05-22 | 2020-07-14 | 东莞市技师学院(东莞市高级技工学校) | Detection apparatus for electrical automation equipment |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN110428987B (en) | 2021-03-05 |
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