CN112551297A - Stop device of shallow pit elevator - Google Patents
Stop device of shallow pit elevator Download PDFInfo
- Publication number
- CN112551297A CN112551297A CN202011583593.0A CN202011583593A CN112551297A CN 112551297 A CN112551297 A CN 112551297A CN 202011583593 A CN202011583593 A CN 202011583593A CN 112551297 A CN112551297 A CN 112551297A
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- Prior art keywords
- switch
- upright
- elevator
- state
- bottom plate
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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- Elevator Control (AREA)
Abstract
The invention discloses a stop device of a shallow pit elevator, which comprises: the device comprises a bottom plate assembly, a stand column assembly, an anti-falling supporting structure and at least one set of state monitoring switch; the bottom plate assembly is used for installing and fixing the whole stopping device; the bottom of an upright post in the upright post assembly is hinged on a bottom plate in the bottom plate assembly and can turn over relative to the bottom plate; the top of the upright post is provided with a buffer; the upright columns in the upright column assemblies are at least in an upright state and a flat state; the anti-falling support structure is used for keeping the upright post upright and not falling; and the state monitoring switch is used for monitoring the state of the upright column and transmitting a monitoring result signal to an elevator control system. The invention has the advantages that the self-locking can be realized when the upright post is erected, the foolproof effect is realized, the risk of mistaken resetting of the stop device caused by forgetting the operation step is avoided, and the switch touch panel in the device has the function of preventing the misoperation of the electric switch.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a stop device of a shallow pit elevator, which can greatly reduce the depth of an elevator pit.
Background
The conventional elevator at present needs to occupy a certain building space, and besides a shaft for the elevator to run up and down, a machine room and a pit are needed, and generally, in order to meet the requirements of relevant standards on the space of the elevator pit, the pit needs to have a certain depth, so that the construction amount is increased, and the engineering cost is increased.
For some additional elevators, if the position of the pit is just at the position of the underground pipeline, and the depth of the pit is too deep, the underground pipeline needs to be changed, so that the construction amount is further increased, and the engineering cost is further increased.
Therefore, how to efficiently utilize the building space, especially how to reduce the excavation depth of a pit by additionally installing an elevator, reduce the change of underground pipelines and reduce the influence on the original building foundation is an urgent problem to be solved at present.
Disclosure of Invention
The invention aims to solve the technical problem that the existing elevator needs to be provided with a deeper pit to drive, and further provides a stop device required by a shallow pit elevator, which can be overturned and horizontally placed when the elevator normally operates, can be upright when the elevator carries out maintenance operation, greatly reduces the pit depth of the elevator while meeting the relevant regulatory standard requirements of the elevator, reduces the excavation amount of the elevator pit and the influence on underground pipelines and building foundations, and has remarkable economic benefit.
The technical problem to be solved by the invention can be realized by the following technical scheme:
a stop device of a shallow pit elevator mainly comprises: the device comprises a bottom plate assembly, a stand column assembly, an anti-falling supporting structure and at least one set of state monitoring switch;
the bottom plate assembly is used for installing and fixing the whole stopping device, and comprises but is not limited to bolt fixing, anchor bolt fixing and welding fixing;
the bottom of an upright post in the upright post assembly is hinged on a bottom plate in the bottom plate assembly and can turn over relative to the bottom plate; the upright column in the upright column component mainly has an upright state and a flat state, the top of the upright column is provided with a buffer, and the buffer comprises but is not limited to a spring type, a rubber type, a polyester type and an oil pressure type;
the anti-falling support structure is used for keeping the upright post upright and not falling; the inclined support is preferably arranged on the upright post, and the position of the limit plate is adjustable; the installation positions of the inclined support and the limiting plate can be interchanged;
the state monitoring switch is used for monitoring the state of the upright post and transmitting a signal to an elevator control system; the state monitoring switch comprises an electric switch and a switch touch plate, and the electric switch can be a photoelectric switch, a microswitch or a limit switch.
The preferred electric switch is installed on the upright post, and the switch touch plate is installed on the bottom plate, and the installation positions of the switch touch plate and the bottom plate can be interchanged. The working surface of the outer edge of the preferred switch touch panel is designed according to the running track of the switch contact in the turning process of the upright post; when the electrical switch is required to be triggered, the switch contact of the electrical switch just runs to the cambered surface with larger radius in the switch touch plate, the switch contact is compressed to contract, and the electrical switch is triggered; when the electrical switch needs to be reset, the switch contact of the electrical switch just runs to the arc surface with smaller arc radius in the working surface of the switch touch panel, the switch contact is separated from being pressed and extends to reset, and the switch automatically resets.
The switch touch panel working surface is reasonably designed, so that the switch contact can be continuously contacted with the touch panel working surface in the static or overturning process of the upright column, and the switch touch panel has the function of preventing the misoperation of the switch, namely when the switch is triggered, the contact is continuously pressed and cannot be stretched and reset, and the switch can only be maintained in a triggered state; when the switch resets, the contact is separated from the pressed state, extends and resets and then is still contacted with the working surface of the switch touch plate, foreign matters cannot enter, and the switch misoperation caused by the fact that the switch contact is interfered is avoided.
Due to the adoption of the technical scheme, the invention has the advantages that: 1. the depth of the elevator pit is greatly reduced, and the economic benefit is remarkable; 2. the state of the upright post can be monitored in real time, and automatic electrical control is conveniently realized; 3. when the upright post is erected, self-locking can be realized to keep the upright state; the safety protection device has the foolproof effect, and the risk that the stand column is separated from the upright state and the switch is in misoperation because the operation step is forgotten, so that the elevator control system receives an error monitoring signal to cause safety risk; 4. the switch touch panel has the function of preventing the switch from misoperation; 5. the invention provides two-stage safety guarantee for the elevator pit space: after the stopping device is erected, a detection signal of an electrical switch is transmitted to an elevator control system, the elevator control system stops the normal operation of the elevator and switches to an operation state needing manual operation of a professional, and the lowest position of the operation is set and controlled by the system; and secondly, mechanical safety protection, when the electrical safety protection system fails, the car which continues to descend is stopped by the elevator car stopping device, so that a pit is ensured to have enough safety space.
Drawings
Fig. 1 is a schematic view of a stopping device of a shallow pit elevator of the present invention in which a column is turned to a vertical state.
Fig. 2 is a schematic view showing a state in which a column of a stopping device of a shallow pit elevator of the present invention is turned to a horizontal state.
Fig. 3 is a schematic view showing a positional relationship between an electric switch and a switch touch panel when an upright post of the stopping device of the shallow pit elevator of the present invention is turned to a vertical state.
Fig. 4 is a schematic diagram showing the positional relationship between the electrical switch and the switch touch panel when the vertical column of the stopping device of the shallow pit elevator of the present invention is turned to the horizontal state.
Detailed Description
The invention is further described below in conjunction with the appended drawings and detailed description.
Referring to the drawings, there is shown a stop arrangement for a shallow pit elevator comprising a base plate assembly, generally a base plate 10, the base plate 10 being a generally rectangular plate, the base plate 10 being mounted on the bottom floor of an elevator hoistway pit (not shown).
The bottom of the upright 40 in the upright assembly is mounted on the base plate 10 by a hinge 41, and the upright 40 is turnable relative to the base plate 10 by the hinge 41. Alternatively, the hinge 41 may be replaced with a rotating shaft. A bumper 50 is mounted on top of the post 40.
The upright post 40 is also provided with an inclined support 60 in the anti-falling support structure, the upper end of the inclined support 60 is hinged with the upright post 60 through a hinge 61, in the process that the upright post 40 is turned from the horizontal state to the vertical state, the upper end of the inclined support 60 is pulled by the upright post 40, the lower end naturally droops to slide on the bottom plate 10, and when the upright post 40 reaches the vertical state, the bottom end of the inclined support 60 just crosses the limiting plate 70 and is clamped on the bottom plate 10 by the limiting plate 70 and cannot retract. Meanwhile, because the upright post 40 has reached the upright state, the bottom surface of the upright post 40 is attached to the upper surface of the base plate 10, so that the upright post 40 cannot be turned forward. The upright post 40 cannot be turned over forward or backward, so that the upright post 40 can only be kept in an upright state.
To sense the position of the post 40, an electrical switch 80 in a condition monitoring switch assembly is mounted on one side of the post 40 and a switch touch plate 30 in the condition monitoring switch assembly is mounted on the same side of the base plate 10. The electrical switch 80 is a photoelectric switch, a limit switch or a microswitch. The working surface of the switch touch plate 30 is a curved surface, and mainly comprises a plurality of sections of curved surfaces designed according to the running track and the triggering requirement of a switch contact in the electric switch 80, wherein the curved surfaces comprise a curved surface 31 for enabling the electric switch 80 to act and a curved surface 32 for enabling the electric switch 80 to reset, and the number and the positions of the curved surfaces 31 and the curved surfaces 32 are not limited. The electric switch 80 and the switch touch panel 30 can be provided in a set and are arranged on the same side of the upright post 40; two sets of the vertical rods can also be arranged and are respectively arranged at the two sides of the upright post 40.
Whether one electrical switch 80 or two electrical switches 80 are connected with the elevator control system, the electrical switch 80 is triggered or reset by the cambered surfaces 31 and 32 in the working surface of the switch touch plate 30.
When the elevator is in normal operation and the mast 40 is in a lying position, as shown in fig. 2, the stopping device of the present invention is in a reset state, i.e., a non-operating state, when the mast 40 is in the lying position. In this state, the electrical switch 80 outputs a position monitoring signal to the elevator control system as a necessary condition for elevator reset.
When a person is working in the elevator pit, the upright column 40 is first manually turned to an upright state, which is an operating state of the stopping device of the present invention, or referred to as a working state, as shown in fig. 1. In this state, a monitoring result signal of the electrical switch 80 is transmitted to the elevator control system, the elevator stops normal operation, the operation is switched to manual operation of a professional, and the lowest point of downward operation is controlled by the electrical safety system to ensure the safety of the operating personnel in the pit. When the upright post 40 is upright, the inclined strut 60 is clamped on the bottom plate 10 by the limiting plate 70, the upright post 40 cannot turn over backwards, meanwhile, the bottom plate 10 prevents the upright post 40 from continuing to rotate forwards, and the upright post 40 is ensured not to topple over in an upright state.
When the operation of the maintainer is finished, the inclined support 60 is manually opened, so that the upright post 40 is changed from the upright state to the lying state, and the monitoring signal of the electrical switch 80 is transmitted to the elevator control system as the necessary condition for the resetting of the elevator.
The invention has the function of preventing the malfunction and error reset of the electric switch 80. I.e., the state of the post 40 in the stopping device is not changed, the switch touch plate 30 blocks the change of the state of the electrical switch 80, thereby preventing the electrical switch 80 from malfunctioning. The method is that the curved surface shape of the working surface of the switch touch plate 30 is designed according to the running track of the switch contact of the electrical switch 80, when the electrical switch 80 is required to act, the switch contact which is turned over along with the upright post 40 just runs to the cambered surface 31 in the working surface of the switch touch plate 30, the cambered surface 31 continuously presses the switch contact to enable the electrical switch 80 to act, the switch contact is pressed and cannot be reset, and the electrical switch 80 can only be maintained in an acting state. When the electrical switch 80 needs to be reset, the switch contact which is turned over along with the upright post 40 just runs to the cambered surface 32 in the working surface of the switch contact plate 30, the switch contact is still lightly contacted with the cambered surface 32 after being stretched and reset due to the fact that the switch contact is separated from being pressed, foreign matters cannot enter, and switch misoperation caused by the fact that the foreign matters interfere with the electrical switch is avoided.
As shown in fig. 3, when the upright post 40 of the present invention is shifted from the lying state to the standing state, the arc surface 31 of the working surface of the switch contact plate 30 presses the switch contact of the electrical switch 80, and the electrical switch 80 is triggered. Since the arc surface 31 is designed according to the movement locus of the switch contact of the operating state of the electrical switch 80, the switch contact of the electrical switch 80 is continuously pressed by the arc surface 31, so that the electrical switch 80 is maintained in the operating state.
As shown in fig. 4, when the shaft is back to the lying state, the arc 32 of the working surface of the switch contact plate 30 is designed according to the moving track of the switch contact in the reset state of the electrical switch 80, and the switch contact is released from being pressed and extended to be reset, so that the electrical switch 80 is automatically reset.
This device provides two-stage safety guarantee for elevator pit space. Firstly, the method comprises the following steps: the electrical safety protection, after the stopping device acts, the monitoring result signal of the electrical switch 80 is fed back to the elevator control system, and the elevator control system stops the normal operation of the elevator and limits the lowest position of the car when a professional operates the elevator manually; II, secondly: mechanical safety protection, when the electrical safety protection fails, the car which continues to descend is stopped by the stop device of the invention so as to ensure the safety of the pit space.
Claims (9)
1. A stop device for a shallow pit elevator, comprising: the device comprises a bottom plate assembly, a stand column assembly, an anti-falling supporting structure and at least one set of state monitoring switch;
the bottom plate assembly is used for installing and fixing the whole stopping device;
the bottom of an upright post in the upright post assembly is hinged on a bottom plate in the bottom plate assembly and can turn over relative to the bottom plate; the top of the upright post is provided with a buffer; the upright columns in the upright column assemblies are at least in an upright state and a flat state;
the anti-falling support structure is used for keeping the upright post upright and not falling;
and the state monitoring switch is used for monitoring the state of the upright column and transmitting a monitoring result signal to an elevator control system.
2. The stopping device for a shallow pit elevator as claimed in claim 1, wherein said condition monitoring switch comprises an electrical switch and a switch touch plate, said electrical switch is connected with an electrical control system, said switch touch plate is provided with a working surface, said electrical switch is triggered and reset by a related arc surface on said switch touch plate working surface.
3. The stop device of a shallow pit elevator as claimed in claim 2, wherein said associated arcs include an arc for touching the electrical switch to operate and an arc for touching the electrical switch to reset, and the number, position and sequence of the two arcs are not limited.
4. The stop device of a shallow pit elevator as claimed in claim 3, wherein the radius of the arc surface for touching the electrical switch is larger than the radius of the arc surface for touching the electrical switch to reset.
5. The stopping device for a shallow pit elevator as claimed in claim 2, wherein said electrical switch is mounted on said column and said switch contact plate is mounted on said base plate, the mounting positions of which can be interchanged.
6. The stop device of a shallow pit elevator as claimed in any one of claims 2 to 5, wherein said electrical switch is a photoelectric switch, a microswitch or a limit switch.
7. The stop device for a shallow pit elevator according to claim 1, wherein the buffer comprises one or a combination of two or more of a spring type buffer, a rubber type buffer, a polyester type buffer, and an oil pressure type buffer.
8. The stopping device of the elevator with shallow pit as claimed in claim 1, wherein said anti-falling supporting structure is composed of an inclined support fitted with a limiting plate, said inclined support is installed on said column, said limiting plate is installed on the bottom plate and its position is adjustable; when the upright post is in an upright state, the inclined support just crosses the limiting plate and leans against the edge of the limiting plate, and the inclined support is blocked on the bottom plate by the limiting plate and cannot retract.
9. The stop device of a shallow pit elevator as claimed in claim 8, wherein the installation positions of said diagonal support and said stop plate are interchangeable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583593.0A CN112551297A (en) | 2020-12-28 | 2020-12-28 | Stop device of shallow pit elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583593.0A CN112551297A (en) | 2020-12-28 | 2020-12-28 | Stop device of shallow pit elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112551297A true CN112551297A (en) | 2021-03-26 |
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ID=75034131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011583593.0A Pending CN112551297A (en) | 2020-12-28 | 2020-12-28 | Stop device of shallow pit elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112551297A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210331895A1 (en) * | 2020-04-28 | 2021-10-28 | Otis Elevator Company | Elevator buffering device and elevator system |
-
2020
- 2020-12-28 CN CN202011583593.0A patent/CN112551297A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210331895A1 (en) * | 2020-04-28 | 2021-10-28 | Otis Elevator Company | Elevator buffering device and elevator system |
| US11685632B2 (en) * | 2020-04-28 | 2023-06-27 | Otis Elevator Company | Elevator buffering device and elevator system |
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