CN111071896A - Elevator car is with buffering protection device - Google Patents
Elevator car is with buffering protection device Download PDFInfo
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- CN111071896A CN111071896A CN202010119390.XA CN202010119390A CN111071896A CN 111071896 A CN111071896 A CN 111071896A CN 202010119390 A CN202010119390 A CN 202010119390A CN 111071896 A CN111071896 A CN 111071896A
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- protection device
- elevator car
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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
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/532—Electrorheological [ER] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a buffer protection device for an elevator car, which aims at the problem that the amplitude of a device after buffering cannot be quickly attenuated. According to the elevator protection device, when the elevator falls and contacts with the elevator protection device, the first rubber shock absorption block is compressed, and the falling pressure of the elevator is inwards concentrated under the obstruction of the folded plate, so that the elevator protection device can fully buffer the pressure and protect personnel in the elevator.
Description
Technical Field
The invention relates to the technical field of limiting devices, in particular to a buffer protection device for an elevator car.
Background
The elevator is a transportation device for vertically transporting pedestrians or goods, the elevator serves a building with specified floors, the vertical lifting elevator is provided with a car, the car runs between at least two rows of vertical rigid guide rails or rigid guide rails with an inclination angle smaller than 15 degrees, so that passengers can conveniently come in and go out or load and unload goods, the elevator is convenient to search, and a buffer protection device for the elevator car is usually used for ensuring that the elevator can protect the passengers when accidents occur.
Most of the existing buffer protection devices for elevator cars have the following defects: the buffering effect can be achieved, but the buffering device still needs a long time to stabilize the amplitude after buffering, the effect is general, and the above patent cannot solve the problem, so that a buffering protection device for an elevator car is urgently needed to solve the problem.
Disclosure of Invention
The invention provides a buffer protection device for an elevator car, which is based on the technical problem that the amplitude of a device cannot be quickly attenuated after the buffer protection device for the elevator car buffers.
In order to achieve the purpose, the invention adopts the following technical scheme:
a buffer protection device for an elevator car comprises a fixing frame, wherein folded plates are fixed on two sides of the outer wall of the top of the fixing frame through bolts, a first rubber damping block is bonded on the inner wall of the bottom of the fixing frame, a plurality of chassis are bonded and fixed on the position, close to the center, of the outer wall of the top of the first rubber damping block, a fixing cylinder is fixed on the outer wall of the top of the chassis through bolts, a piston rod is inserted and connected onto the inner wall of the top of the fixing cylinder, a supporting plate is sleeved on the outer wall of the circumference of the fixing cylinder, a damping spring is welded on the outer wall of the top of the supporting plate and sleeved on the outer walls of the circumferences of the fixing cylinder and the piston rod, a spring tray is fixed at the top end of the piston rod through bolts, one end of the damping spring is welded on the outer wall of the bottom of the spring tray, and a second rubber shock absorption block is bonded on the outer wall of the top of the connecting plate, and oil is filled in the fixed cylinder.
As a still further scheme of the invention: the longitudinal section of the folded plate is V-shaped, one side of the folded plate close to the fixed frame is vertical to one side of the fixed frame, and the other side of the folded plate is internally buckled.
As a still further scheme of the invention: the welding has the dead lever on one side outer wall of a fixed cylinder, and the one end of dead lever has the gas pitcher through the bolt fastening, and it has the connecting pipe to peg graft on the bottom outer wall of gas pitcher, and the inside packing of gas pitcher has nitrogen gas, and the one end of connecting pipe is pegged graft in the position that one side outer wall of a fixed cylinder is close to the bottom.
As a still further scheme of the invention: a connecting rod is fixed on the outer wall of the bottom of the piston rod through a bolt, a piston is fixed on the outer wall of the bottom of the connecting rod through a bolt, and the outer wall of the piston is in contact with the inner wall of the circumference of the fixed cylinder.
As a still further scheme of the invention: the outer wall of the top of the piston is provided with a plurality of first through holes, a first valve is arranged at the position, close to the top, of the circumferential inner wall of the first through hole, a plurality of second through holes are arranged on the outer wall of the top of the piston, and a second valve is arranged at the position, close to the bottom, of the circumferential inner wall of the second through hole.
As a still further scheme of the invention: the valve body is fixed on the inner wall of the bottom of the fixed cylinder through a bolt, the liquid storage cavity is formed in the wall of the fixed cylinder, the L-shaped flow channel is formed in the outer wall of the top of the valve body, and one end of each flow channel is communicated with the two liquid storage cavities respectively.
As a still further scheme of the invention: the runner is inside to be welded on the inner wall of one side that is close to the flex point has first extension spring, and the other end welding of first extension spring has the separation blade, and the inside opposite side inner wall that is close to the flex point of runner has the second extension spring in the welding, and the other end welding of second extension spring is on the outer wall of one side of separation blade.
As a still further scheme of the invention: one end of the separation blade is hinged to the inner wall of the flow channel, and the other end of the separation blade is in contact with the inner wall of the other side of the flow channel.
As a still further scheme of the invention: the device is characterized by further comprising a control box, a processor and a linear motor, wherein the control box is fixed on the inner wall of one side of the fixing frame through bolts, the processor is fixed on the inner wall of the bottom of the control box through bolts, and the linear motor is fixed on the inner wall of the bottom of the chassis through bolts.
The invention has the beneficial effects that:
1. through the arrangement of the folded plate, the piston rod and the fixed cylinder, the folded plate is in an inner buckling state, so that when the elevator falls and contacts with the device, the first rubber shock absorption block is compressed, and the falling pressure of the elevator is inwards concentrated under the obstruction of the folded plate, so that the device can fully buffer the pressure and protect personnel in the elevator;
2. by arranging the piston, the valve body and the liquid storage cavity, when the device is pressed, the damping spring is compressed, so that the piston rod moves downwards, when the piston rod moves downwards, the volume of a cavity below the piston is reduced, the oil pressure is increased, the oil liquid flows into an upper cavity by pushing a first valve open by the upward flow of the oil liquid, the area of the upper cavity is smaller than that of a lower cavity due to the piston rod, part of the oil liquid enters the liquid storage cavity by pushing a separation blade open by a flow channel, then the piston rod moves upwards, the oil liquid flows back, the oil liquid pushes a second valve open, the oil liquid flows downwards to form damping force when the valve throttles the oil liquid, so that the energy compressed by the spring is converted into the heat energy of the oil liquid and further dissipated into the atmosphere, and because the rigidity and the pretightening force of the first valve are larger than those of the second valve, and under the same pressure, the sum of the sectional area, the damping device can achieve a quick damping effect, so that the amplitude of the device is quickly reduced when the device is pressed, the device and an elevator are quickly stabilized, and a buffering protection effect is achieved;
3. through treater and the linear electric motor that sets up, install an acceleration sensor and cooperate with it on elevator car, the fluid in the fixed cylinder adopts the special damping fluid of magnetic current rheology, acceleration sensor is different with in the past at perception elevator car falling speed, give the treater with signal transmission, the linear electric motor is opened after the treater analysis handles, the linear electric motor produces magnetic field after opening, after the linear electric motor current increase, the viscosity of damping fluid also increases, increase damping force, be convenient for fine absorb the energy of damping spring compression, accelerate the decay of vibration.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment 1 of a buffer protection device for an elevator car according to the present invention;
fig. 2 is a partial cross-sectional structural schematic view of an embodiment 1 of a buffer protection device for an elevator car according to the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B of FIG. 2;
fig. 5 is a schematic partial simple three-dimensional structure diagram of an elevator car buffer protection device in accordance with embodiment 1 of the present invention;
fig. 6 is an overall structural schematic diagram of an embodiment 2 of the buffer protection device for the elevator car provided by the invention;
fig. 7 is a partial sectional structural schematic view of an embodiment 2 of a buffer protection device for an elevator car according to the present invention.
In the figure: the device comprises a fixing frame 1, a first rubber shock absorption block 2, a gas tank 3, a shock absorption spring 4, a folded plate 5, a second rubber shock absorption block 6, a connecting plate 7, a spring tray 8, a piston rod 9, a fixing cylinder 10, a supporting plate 11, a chassis 12, a connecting pipe 13, a connecting rod 14, a piston 15, a valve body 16, a liquid storage cavity 17, a first throttle hole 18, a first valve 19, a second throttle hole 20, a second valve 21, a flow passage 22, a first tension spring 23, a blocking piece 24, a second tension spring 25, a control box 26, a processor 27 and a linear motor 28.
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.
Example 1
Referring to fig. 1-5, a buffer protection device for an elevator car comprises a fixing frame 1, wherein both sides of the top outer wall of the fixing frame 1 are fixed with folded plates 5 through bolts, a first rubber damping block 2 is adhered on the bottom inner wall of the fixing frame 1, a plurality of chassis 12 are adhered and fixed on the position, close to the center, of the top outer wall of the first rubber damping block 2, a fixed cylinder 10 is fixed on the top outer wall of the chassis 12 through bolts, a piston rod 9 is inserted and connected on the top inner wall of the fixed cylinder 10, a supporting plate 11 is sleeved and connected on the circumferential outer wall of the fixed cylinder 10, a damping spring 4 is welded on the top outer wall of the supporting plate 11, the damping spring 4 is sleeved and connected on the circumferential outer walls of the fixed cylinder 10 and the piston rod 9, a spring tray 8 is fixed on the top end of the piston rod 9 through bolts, one end of the damping spring 4 is welded on the bottom outer wall of the spring tray 8, the outer wall of the top of the connecting plate 7 is bonded with a second rubber shock absorption block 6, and oil is filled in the fixed cylinder 10.
In the invention, the longitudinal section of a folded plate 5 is V-shaped, one side of the folded plate 5 close to a fixed frame 1 is vertical to one side of the fixed frame 1, the other side of the folded plate 5 is internally buckled, a fixed rod is welded on the outer wall of one side of a fixed cylinder 10, an air tank 3 is fixed at one end of the fixed rod through a bolt, a connecting pipe 13 is inserted on the outer wall of the bottom of the air tank 3, nitrogen is filled in the air tank 3, one end of the connecting pipe 13 is inserted at the position of the outer wall of one side of the fixed cylinder 10 close to the bottom, a connecting rod 14 is fixed on the outer wall of the bottom of a piston rod 9 through a bolt, a piston 15 is fixed on the outer wall of the bottom of the connecting rod 14 through a bolt, the outer wall of the piston 15 is contacted with the inner wall of the circumference of the fixed cylinder 10, a plurality of first through throttle holes 18 are arranged on the outer wall of the top of, the position that the inner wall of second orifice 20 circumference is close to the bottom is equipped with second valve 21, there is valve body 16 through the bolt fastening on the bottom inner wall of solid fixed cylinder 10, it has stock solution chamber 17 to open on the wall of solid fixed cylinder 10, it has the runner 22 of L shape to open on the top outer wall of valve body 16, the one end of two runners 22 is linked together with two stock solution chambers 17 respectively, the welding has first extension spring 23 on the inside one side inner wall that is close to the flex point of runner 22, the welding of the other end of first extension spring 23 has separation blade 24, the welding has second extension spring 25 on the inside opposite side inner wall that is close to the flex point of runner 22, the welding of the other end of second extension spring 25 is on one side outer wall of separation blade 24, the one end of separation blade 24 articulates on the inner.
When the elevator is used, the device is positioned under an elevator car and a counterweight to play a role of buffering protection and avoid the elevator from being suddenly dropped to cause injury to human bodies, when the elevator is accidentally dropped, firstly, the external safety tongs can start to work to lock the elevator, if the elevator is still descending, and internal personnel do not hurry, the floor on which the elevator falls should be sequentially pressed down, then, the body is stuck to the wall, a handrail or a double-hand holding head is held to prevent falling injury due to unstable gravity center, the knee is bent, the toe is grounded, and the heel is lifted to achieve self protection, the bottom of the elevator is provided with a buffering protection device, the impact is relieved from the outside to ensure the safety of the internal personnel, the car is contacted with the second rubber damping block 6 after falling, under the action of the folded plate 5, the second rubber block 6 shrinks and concentrates the pressure inwards, the buffering mechanism consisting of the damping spring 4 and the fixed cylinder 10 performs force unloading buffering and pressing, the damping spring 4 is compressed, the piston rod 9 moves downwards, the volume of a cavity below the piston 15 is reduced, the oil pressure is increased, the oil liquid flows upwards to open the first valve 19 to flow into an upper cavity, the area of the upper cavity is smaller than that of a cavity below because the piston rod 9 is arranged in the upper cavity, part of the oil liquid flows into the liquid storage cavity 17 through the flow passage 22 to press open the baffle 24, the piston rod 9 moves upwards after compression, the oil liquid flows backwards, the oil liquid opens the second valve 21, the oil liquid flows into the cavity and forms damping force when the valve throttles the oil liquid, so that the energy compressed by the damping spring 4 is converted into the heat energy of the oil liquid to be emitted into the atmosphere, the rigidity and the pretightening force of the first valve 19 are larger than those of the second valve 21, the sum of the channel sectional area of the first valve 19 is smaller than that of the channel of the second valve 21 under the same pressure, and therefore, thereby make the device amplitude reduce rapidly when the pressurized to make device and elevator stable rapidly, thereby play certain protection to personnel in the elevator, the hydraulic pressure chamber volume that produces when interior pole removes is alleviated to gas pitcher 3 changes, prevents damping spring 4 idle stroke when kick-backing, and the vacuum in the lower chamber makes the better work of hydraulic damping ability.
Example 2
Referring to fig. 6-7, a buffer protection device for an elevator car, this embodiment is compared with embodiment 1, and further includes a control box 26, a processor 27 and a linear motor 28, the control box 26 is fixed on one side inner wall of the fixing frame 1 through bolts, the processor 27 is fixed on the bottom inner wall of the control box 26 through bolts, and the linear motor 28 is fixed on the bottom inner wall of the chassis 12 through bolts.
During the use, elevator car is equipped with acceleration sensor, with treater 27 wireless connection, it is different with in the past at perception elevator car falling speed when acceleration sensor, give treater 27 with signal transmission, linear motor 28 is opened after treater 27 analysis processes, linear motor 28 opens the back and produces magnetic field, linear motor 28 current increase back, the viscosity of the inside special shock absorber liquid of fixed cylinder 10 also increases, and then increase damping force, be convenient for fine absorb the energy of damping spring compression, accelerate the decay of vibration, alleviate the lasting amplitude of device, thereby make device and car stable rapidly, play certain protection to inside personnel.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The buffering protection device for the elevator car comprises a fixing frame (1) and is characterized in that folded plates (5) are fixed on two sides of the top outer wall of the fixing frame (1) through bolts, a first rubber damping block (2) is bonded on the bottom inner wall of the fixing frame (1), a plurality of chassis (12) are bonded and fixed at the position, close to the center, of the top outer wall of the first rubber damping block (2), a fixing cylinder (10) is fixed on the top outer wall of the chassis (12) through bolts, a piston rod (9) is inserted into the top inner wall of the fixing cylinder (10), a supporting plate (11) is sleeved on the circumference outer wall of the fixing cylinder (10), a damping spring (4) is welded on the top outer wall of the supporting plate (11), the damping spring (4) is sleeved on the circumference outer walls of the fixing cylinder (10) and the piston rod (9), and a spring supporting plate (8) is fixed at the top end of the piston rod (9) through bolts, one end of each damping spring (4) is welded on the outer wall of the bottom of the spring tray (8), the same connecting plate (7) is fixed on the outer wall of the top of the spring tray (8) through bolts, a second rubber damping block (6) is bonded on the outer wall of the top of the connecting plate (7), and oil is filled in the fixed cylinder (10).
2. The buffer protection device for the elevator car as claimed in claim 1, wherein the longitudinal section of the folded plate (5) is V-shaped, one side of the folded plate (5) close to the fixed frame (1) is perpendicular to one side of the fixed frame (1), and the other side of the folded plate (5) is internally buckled.
3. The buffer protection device for the elevator car as claimed in claim 1, wherein a fixing rod is welded on the outer wall of one side of the fixing cylinder (10), one end of the fixing rod is fixed with a gas tank (3) through a bolt, a connecting pipe (13) is inserted on the outer wall of the bottom of the gas tank (3), the inside of the gas tank (3) is filled with nitrogen, and one end of the connecting pipe (13) is inserted at a position, close to the bottom, of the outer wall of one side of the fixing cylinder (10).
4. The buffer protection device for the elevator car as claimed in claim 1, wherein the piston rod (9) is fixed with a connecting rod (14) on the outer wall of the bottom through a bolt, a piston (15) is fixed on the outer wall of the bottom of the connecting rod (14) through a bolt, and the outer wall of the piston (15) is in contact with the inner wall of the circumference of the fixed cylinder (10).
5. The buffer protection device for the elevator car as claimed in claim 4, characterized in that the piston (15) is provided with a plurality of first through holes (18) on the outer wall of the top, the first through holes (18) are provided with a first valve (19) on the inner wall of the circumference near the top, the piston (15) is provided with a plurality of second through holes (20) on the outer wall of the top, and the second through holes (20) are provided with a second valve (21) on the inner wall of the circumference near the bottom.
6. The buffer protection device for the elevator car according to claim 1 or 3, wherein the valve body (16) is fixed on the bottom inner wall of the fixed cylinder (10) through bolts, the liquid storage cavity (17) is formed on the wall of the fixed cylinder (10), the L-shaped flow passage (22) is formed on the top outer wall of the valve body (16), and one end of each of the two flow passages (22) is respectively communicated with the two liquid storage cavities (17).
7. The buffering protection device for the elevator car as claimed in claim 6, wherein a first tension spring (23) is welded on the inner wall of one side of the flow channel (22) close to the inflection point, a blocking piece (24) is welded at the other end of the first tension spring (23), a second tension spring (25) is welded on the inner wall of the other side of the flow channel (22) close to the inflection point, and the other end of the second tension spring (25) is welded on the outer wall of one side of the blocking piece (24).
8. The buffer protection device for the elevator car as claimed in claim 7, wherein one end of the blocking piece (24) is hinged on the inner wall of the flow passage (22), and the other end of the blocking piece (24) is in contact with the inner wall of the other side of the flow passage (22).
9. The buffer protection device for the elevator car is characterized by further comprising a control box (26), a processor (27) and a linear motor (28), wherein the control box (26) is fixed on one side inner wall of the fixed frame (1) through bolts, the processor (27) is fixed on the bottom inner wall of the control box (26) through bolts, and the linear motor (28) is fixed on the bottom inner wall of the chassis (12) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119390.XA CN111071896B (en) | 2020-02-26 | 2020-02-26 | Elevator car is with buffering protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119390.XA CN111071896B (en) | 2020-02-26 | 2020-02-26 | Elevator car is with buffering protection device |
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| Publication Number | Publication Date |
|---|---|
| CN111071896A true CN111071896A (en) | 2020-04-28 |
| CN111071896B CN111071896B (en) | 2020-11-24 |
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| CN202010119390.XA Active CN111071896B (en) | 2020-02-26 | 2020-02-26 | Elevator car is with buffering protection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212134A (en) * | 2020-10-12 | 2021-01-12 | 岑阳 | Damping and noise-reducing foot pad equipment for folding mechanical equipment |
| CN112901587A (en) * | 2021-01-15 | 2021-06-04 | 重庆仟知佳科技有限公司 | Hydraulic power mechanical power assisting device |
| CN113550444A (en) * | 2021-08-26 | 2021-10-26 | 仲恺农业工程学院 | Assembled shear connector |
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| CN209177794U (en) * | 2018-11-29 | 2019-07-30 | 南京新蓝摩显示技术有限公司 | A kind of elevator buffer device |
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| CN207078858U (en) * | 2017-08-25 | 2018-03-09 | 山西东迅自动化设备有限公司 | A kind of lift car buffer |
| CN107458943A (en) * | 2017-09-04 | 2017-12-12 | 苏州台菱奥创电梯有限公司 | A kind of buffer unit being installed in stair shaft |
| CN207632281U (en) * | 2017-09-30 | 2018-07-20 | 上海龙钰电梯配件有限公司 | A kind of buffer of elevator |
| CN108657901A (en) * | 2018-07-06 | 2018-10-16 | 苏州福特美福电梯有限公司 | A kind of foot guard device of elevator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212134A (en) * | 2020-10-12 | 2021-01-12 | 岑阳 | Damping and noise-reducing foot pad equipment for folding mechanical equipment |
| CN112212134B (en) * | 2020-10-12 | 2022-07-15 | 岑阳 | Damping and noise-reducing foot pad equipment for foldable mechanical equipment |
| CN112901587A (en) * | 2021-01-15 | 2021-06-04 | 重庆仟知佳科技有限公司 | Hydraulic power mechanical power assisting device |
| CN113550444A (en) * | 2021-08-26 | 2021-10-26 | 仲恺农业工程学院 | Assembled shear connector |
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