CN112850411A - Pit scram switch safety device - Google Patents
Pit scram switch safety device Download PDFInfo
- Publication number
- CN112850411A CN112850411A CN202110251765.2A CN202110251765A CN112850411A CN 112850411 A CN112850411 A CN 112850411A CN 202110251765 A CN202110251765 A CN 202110251765A CN 112850411 A CN112850411 A CN 112850411A
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- CN
- China
- Prior art keywords
- emergency stop
- stop switch
- pit
- switch box
- safety
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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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a pit emergency stop switch safety device, which comprises a pit emergency stop switch box, wherein an emergency stop switch is fixedly arranged at the top of one side of the front surface of the pit emergency stop switch box, an emergency cut-off switch is fixedly arranged at the bottom of one side of the front surface of the pit emergency stop switch box, a lighting switch is fixedly arranged at the top of the other side of the front surface of the pit emergency stop switch box, an indicator lamp is fixedly arranged at the middle of the other side of the front surface of the pit emergency stop switch box, voice broadcasting equipment is fixedly arranged at the bottom of the other side of the front surface of the pit emergency stop switch box, and a connecting cable is fixedly arranged at the bottom of the pit emergency stop switch box. The personal safety of the operating personnel is guaranteed.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a pit emergency stop switch safety device.
Background
With the continuous development of elevator technology, the reliability of the safety performance of an elevator is continuously improved, however, emergency stop switches which are configured for entering a pit and operated by the existing elevator are only a group of normally closed switches, no other safety guarantee is provided, if the emergency stop switches of the pit break down, operators who are ready to enter the pit are not informed, the elevator continues to operate at the moment, safety accidents are easily caused in the process, and in addition, the operators who are about to enter the pit cannot master the state information of the emergency stop switches of the pit at the moment, and personal safety of the operators cannot be guaranteed.
Disclosure of Invention
The invention aims to provide a pit emergency stop switch safety device, which aims to solve the problems that the existing switch safety device proposed in the background technology cannot remind safety operators in time, and safety accidents are easily caused.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pit emergency stop switch safety device, includes pit emergency stop switch box, the top fixed mounting of the positive one side of pit emergency stop switch box has emergency stop switch, the bottom fixed mounting of the positive one side of pit emergency stop switch box has urgent cut-off switch, the top fixed mounting of the positive opposite side of pit emergency stop switch box has lighting switch, the middle part fixed mounting of the positive opposite side of pit emergency stop switch box has the pilot lamp, the bottom fixed mounting of the positive opposite side of pit emergency stop switch box has voice broadcast equipment, the fixed connecting cable that is provided with in bottom of pit emergency stop switch box.
As a preferred technical solution of the present invention, the emergency stop switch is electrically connected to the safety circuit, and both the emergency cut-off switch and the safety circuit are electrically connected to the control system.
As a preferred technical scheme of the present invention, the indicator light and the voice broadcasting device are both electrically connected to the bottom layer outbound display, and the bottom layer outbound display is electrically connected to the control system.
As a preferable technical solution of the present invention, the emergency stop switch is electrically connected to the indicator lamp.
As a preferable technical scheme of the invention, a cable protective sleeve is fixedly arranged at the joint of the pit emergency stop switch box and the connecting cable.
Compared with the prior art, the invention has the beneficial effects that:
1. the safety device of the bottom pit emergency stop switch adopts the technology of monitoring the state of the bottom pit emergency stop switch, compares the states of two groups of switches of the emergency stop switch, if the control system is inconsistent in comparison state, the elevator stops all operation action instructions, and an operator can more intuitively obtain the state prompt of an indicator light and the fault prompt of voice broadcasting equipment and quit the operation in time, thereby greatly improving the safety of the operation and the equipment;
2. the safety device of the pit emergency stop switch adopts the safety circuit breaking device of the emergency cut-off switch, so that when the pit emergency stop switch and the control system are checked and simultaneously have faults, a safety loop is cut off emergently to stop the operation of the elevator, thereby greatly ensuring safety measures at emergency time and ensuring the personal safety of operating personnel.
Drawings
FIG. 1 is a schematic view of an interface arrangement according to the present invention;
fig. 2 is a schematic diagram of the circuit principle structure of the present invention.
In the figure: 1. a pit emergency stop switch box; 2. a bottom layer outbound display; 3. a control system; 4. a scram switch; 5. an indicator light; 6. a voice broadcast device; 7. a safety circuit; 8. an emergency disconnect switch; 9. a light switch; 10. and connecting the cable.
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.
Referring to fig. 1-2, the invention provides a pit emergency stop switch safety device, which comprises a pit emergency stop switch box 1, wherein an emergency stop switch 4 is fixedly installed at the top of one side of the front surface of the pit emergency stop switch box 1, an emergency cut-off switch 8 is fixedly installed at the bottom of one side of the front surface of the pit emergency stop switch box 1, a lighting switch 9 is fixedly installed at the top of the other side of the front surface of the pit emergency stop switch box 1, an indicator lamp 5 is fixedly installed in the middle of the other side of the front surface of the pit emergency stop switch box 1, a voice broadcasting device 6 is fixedly installed at the bottom of the other side of the front surface of the pit emergency stop switch box 1, and a connecting cable 10 is fixedly installed at the bottom of the pit emergency stop.
Preferably, the emergency stop switch 4 is electrically connected with the safety circuit 7, the emergency cut-off switch 8 and the safety circuit 7 are both electrically connected with the control system 3, the emergency cut-off switch 8 is connected with the normally closed switch contact of the emergency stop switch 4 in series by one pin and two pins and is connected into the safety circuit 7 together, and the emergency cut-off switch 8 is a safe and reliable cut-off circuit breaker and is not adhered during fault or cut-off.
Preferably, pilot lamp 5 and voice broadcast equipment 6 all with the bottom exhale display 2 electric connection outward, the bottom exhales display 2 and 3 electric connection of control system outward, when control system 3 obtained the action state nonconformity of two sets of switches of scram switch 4, the elevator will the bring to rest, and exhale display 2 control pit scram switch box 1 outward through the bottom and carry out safety prompt with voice broadcast equipment 6, when scram switch 4 breaks down in addition, accessible emergency cut-off switch 8 carries out emergency operation, safe reliability has further been guaranteed.
Preferably, the emergency stop switch 4 is electrically connected with the indicator lamp 5, and when the emergency stop switch 4 is operated, the bottom layer outbound display 2 controls the indicator lamp 5 to light up, which indicates that the device is in a working state at the moment.
Preferably, a cable protective sleeve is fixedly arranged at the joint of the pit emergency stop switch box 1 and the connecting cable 10, and the cable protective sleeve protects the joint of the connecting cable 10 and the pit emergency stop switch box 1 and prevents the connecting cable 10 from being broken.
When the safety device is used, one pin of one group of normally closed switches 4 in an emergency stop switch box 1 of the pit is connected with one pin of an emergency cut-off switch 8, two pins of the emergency stop switch 4 are connected into an elevator safety loop 7, two pins of the emergency cut-off switch 8 are connected into a safety loop detection point of a control system 3, another group of normally closed switch contacts eleven of the emergency stop switch 4 in the emergency stop switch box 1 of the pit is connected into a bottom layer external call display 2, twelve pins of the emergency stop switch 4 are connected into a signal input in the bottom layer external call display 2, the bottom layer external call display 2 is in communication connection with the control system 3, a negative pin of an indicator lamp 5 is connected into a J2 plug-in indicator lamp output in the bottom layer external call display 2, a positive pin of the indicator lamp 5 is connected into a J2 plug-in positive 24V in the bottom layer external call display 2, when the emergency stop switch 4 acts, a closing signal of the eleven pins and twelve pins of the emergency stop switch 4 are provided to the control system 3 through the bottom layer external call display 2, the control system 3 controls the output of the indicator lamp 5 to be lightened through the bottom layer outbound display 2, and the emergency stop switch 4 is in a working state at the moment;
a safety device of a bottom pit emergency stop switch is characterized in that a negative pin of a voice broadcasting device 6 is connected to a J3 plug buzzer in a bottom layer external call display 2 for output, a positive pin of the voice broadcasting device 6 is connected to a J3 plug positive 24V in the bottom layer external call display 2 for output, a control system 3 compares a monitoring point of a safety loop 7 with an input signal received by the bottom layer external call display 2, if two groups of normally closed switches (one, two pins) and (eleven, twelve pins) of the emergency stop switch 4 are inconsistent in action, the control system 3 controls an elevator to stop all operation instructions, and controls the voice broadcasting device 6 in a bottom pit emergency stop switch box 1 to perform safety prompt through the bottom layer external call display 2;
the emergency cut-off switch 8 is connected with the normally closed switch contact of the emergency cut-off switch 4 in series by one pin and two pins and is connected into the safety loop 7 together, and preferably, the emergency cut-off switch 8 is a safe and reliable cut-off circuit breaker, so that the adhesion condition exists when the fault occurs or the cut-off is performed, if the normally closed switch of one pin and two pins of the emergency cut-off switch 4 fails or the normally closed switch of eleven pin and twelve pins of the emergency cut-off switch 4 fails, the elevator still has the uncontrolled and accidental movement condition at the moment, an operator can perform emergency operation through the emergency cut-off switch 8 to cut off the safety loop 7 to stop the elevator operation instruction, and safety measures for protecting safety by emergency operation are provided at emergency moment;
the safety device of the bottom pit emergency stop switch adopts the technology of monitoring the state of the bottom pit emergency stop switch 4, compares the states of two groups of switches of the emergency stop switch 4, if the comparison states of the control system 3 are inconsistent, the elevator stops all operation action instructions, and an operator can more intuitively obtain the state prompt of the indicator lamp 5 and the fault prompt of the voice broadcasting equipment 6 to timely quit the operation, thereby greatly improving the safety of the operation and the equipment;
the safety device of the pit emergency stop switch adopts the safety circuit breaking device of the emergency cut-off switch 8, so that when the pit emergency stop switch 4 and the control system 3 are checked and simultaneously break down, the safety loop 7 is cut off in an emergency, the elevator is stopped, and therefore, the safety measures can be greatly guaranteed at an emergency moment, and the personal safety of operating personnel can be guaranteed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a pit scram switch safety device, includes pit scram switch box (1), its characterized in that: the utility model discloses a pit emergency stop switch box, including pit emergency stop switch box (1), pit emergency stop switch box (1) and lighting switch (9), the top fixed mounting of the positive one side of pit emergency stop switch box (1) has emergency cut-off switch (8), the top fixed mounting of the positive opposite side of pit emergency stop switch box (1) has lighting switch (9), the middle part fixed mounting of the positive opposite side of pit emergency stop switch box (1) has pilot lamp (5), the bottom fixed mounting of the positive opposite side of pit emergency stop switch box (1) has voice broadcast equipment (6), the fixed connecting cable (10) that is provided with in bottom of pit emergency stop switch box (1).
2. A pit emergency stop switch safety device according to claim 1, characterized in that: the emergency stop switch (4) is electrically connected with the safety loop (7), and the emergency cut-off switch (8) and the safety loop (7) are both electrically connected with the control system (3).
3. A pit emergency stop switch safety device according to claim 2, characterized in that: indicator lamp (5) and voice broadcast equipment (6) all exhale display (2) electric connection outward with the bottom, exhale display (2) and control system (3) electric connection outward of bottom.
4. A pit emergency stop switch safety device according to claim 1, characterized in that: the emergency stop switch (4) is electrically connected with the indicator lamp (5).
5. A pit emergency stop switch safety device according to claim 1, characterized in that: and a cable protective sleeve is fixedly arranged at the joint of the pit emergency stop switch box (1) and the connecting cable (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251765.2A CN112850411A (en) | 2021-03-08 | 2021-03-08 | Pit scram switch safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251765.2A CN112850411A (en) | 2021-03-08 | 2021-03-08 | Pit scram switch safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112850411A true CN112850411A (en) | 2021-05-28 |
Family
ID=75994793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110251765.2A Pending CN112850411A (en) | 2021-03-08 | 2021-03-08 | Pit scram switch safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112850411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038174A (en) * | 2021-12-03 | 2022-02-11 | 虏克电梯有限公司 | Safety alarm reminding device used before operation of entering pit and car roof |
-
2021
- 2021-03-08 CN CN202110251765.2A patent/CN112850411A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038174A (en) * | 2021-12-03 | 2022-02-11 | 虏克电梯有限公司 | Safety alarm reminding device used before operation of entering pit and car roof |
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