CN108382950B - Anti-falling safety device for passenger elevator - Google Patents
Anti-falling safety device for passenger elevator Download PDFInfo
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- CN108382950B CN108382950B CN201810321024.5A CN201810321024A CN108382950B CN 108382950 B CN108382950 B CN 108382950B CN 201810321024 A CN201810321024 A CN 201810321024A CN 108382950 B CN108382950 B CN 108382950B
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- elevator
- lantern ring
- spiral
- safety device
- 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
- B66B5/02—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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The present application relates to a passenger ladder safety device that falls, include: the elevator comprises a plurality of angle steels, spiral rails and a clamping mechanism, wherein the angle steels are vertically and equidistantly arranged and fixed on the side wall of an elevator shaft, the spiral rails are threaded steel columns, the upper ends of the spiral rails are fixed on the top of the elevator shaft, and the lower ends of the spiral rails are fixed on the bottom of the elevator shaft; the clamping mechanism comprises a lantern ring, two clamping blocks and a fixed arm, wherein the two clamping blocks are oppositely arranged at two sides outside the lantern ring and are connected with the lantern ring through a shaft; the inner diameter of the lantern ring is matched with the diameter of the spiral rail, threads matched with the spiral rail are arranged on the inner side of the lantern ring, and the lantern ring is sleeved on the spiral rail; the lower end of the lantern ring is connected with a fixed arm shaft; the passenger elevator anti-falling wheel type safety device does not need electric control, gets rid of dependence on various sensors, clamps the elevator car when the elevator runs at a speed exceeding a limit speed, has a simple structure, is convenient and fast to maintain, has a buffering effect when clamped, and has small damage to passengers and the elevator car.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to an anti-falling safety device for a passenger elevator.
Background
With the continuous development of the economy in China, elevators are becoming more and more common in the urban development in China, and in most high-rise buildings, the elevators are indispensable. Because elevator load is great, partial elevator lacks the safety guarantee of sufficient intensity, once the elevator appears the phenomenon of falling, will cause serious result.
The current elevator safety device adopts a speed sensor, an acceleration sensor, an angular velocity sensor and the like to monitor the running state of an elevator except for a safety tongs which is commonly adopted, and the monitoring devices need to be electrified and regularly detect and maintain, so that the conditions of failure, reaction delay, false alarm and the like of the monitoring devices can sometimes occur, thereby causing potential safety hazards.
Disclosure of Invention
The invention aims to provide a passenger elevator anti-falling safety device capable of bearing a large load.
Another object of the invention is to provide a passenger elevator fall protection safety device with cushioning effect.
In order to solve the technical problems, the invention discloses a passenger elevator anti-falling safety device, which comprises: the elevator comprises a plurality of angle steels, spiral rails and a clamping mechanism, wherein the angle steels are vertically and equidistantly arranged and fixed on the side wall of an elevator shaft, the spiral rails are threaded steel columns, the upper ends of the spiral rails are fixed on the top of the elevator shaft, and the lower ends of the spiral rails are fixed on the bottom of the elevator shaft; the clamping mechanism comprises a lantern ring, two clamping blocks and a fixed arm, wherein the two clamping blocks are oppositely arranged at two sides outside the lantern ring and are connected with the lantern ring through a shaft; the inner diameter of the lantern ring is matched with the diameter of the spiral rail, threads matched with the spiral rail are arranged on the inner side of the lantern ring, and the lantern ring is sleeved on the spiral rail; the lower end of the lantern ring is connected with a fixed arm shaft; the fixed arm is welded on the side wall of the car;
the spiral rail is arranged between the angle steel and the car.
Preferably, in the anti-falling safety device for the passenger elevator, when the elevator runs up and down, the lantern ring rotates along the spiral rail and moves along with the elevator car, in the process of moving along with the elevator car, the lantern ring drives the clamping block to rotate together and generate centrifugal force, the lower end of the clamping block is lifted up under the action of the centrifugal force, and the clamping block does not collide with the angle steel under the normal running speed of the elevator car;
when the running speed of the car exceeds the maximum speed limit, the lifting height of the clamping block exceeds the critical position, and the clamping block collides with the angle steel and is clamped;
the right angle orientation of angle steel is opposite with the rotation direction of lantern ring when the car goes up, makes the vertical face of angle steel can play the stop block and continue forward movement, can prevent to break away from the angle steel once more after the stop block slides the angle steel plane.
Preferably, in the passenger elevator anti-falling safety device, the vertical distance between the clamping block and the angle steel is not more than 20cm. The maximum speeds defined by different elevators are different, so that the height and angle at which the locking piece lifts up are different, but if the vertical distance between the locking piece and the angle steel is too large when the locking is stationary, the shaft on the locking piece as a fulcrum will be subjected to a great pressure by the action of the lever when the locking occurs, and the shaft on the locking piece may be broken or the fixing arm may be bent, and the vertical distance between the locking piece and the angle steel should be controlled to be as small as possible for safety.
Preferably, the passenger elevator anti-falling safety device is characterized in that the clamping block is made of martensitic stainless steel, and the clamping block is not deformed and damaged when clamped.
Preferably, the passenger elevator anti-falling safety device is characterized in that a buffer gasket is arranged on the inner side of the angle steel, and the buffer gasket is made of foamed aluminum. The foamed aluminum has good high damping performance and impact energy absorptivity, and theoretically, the foamed aluminum with the porosity of 84 percent can absorb 2.5MJ/cm when 50 percent deformation occurs 3 The energy above, when the instantaneous impact force when the elevator car is blocked is great, the buffer gasket is compressed and deformed to absorb a large amount of kinetic energy, and the elevator car stops moving.
Preferably, the passenger elevator anti-falling safety device is characterized in that the clamping block is cuboid, a side angle of the upper part of the clamping block, which is close to the car, is a round angle, and a protruding block is arranged at the top of the clamping block; and notches matched with the convex blocks are arranged on two sides of the upper part of the lantern ring. When the locking takes place, the block is jacked by the angle steel, and the lug inserts the breach on the lantern ring and compress tightly on the spiral rail, makes whole locking mechanism and spiral rail locking, and this also can prevent the car to continue the motion to a certain extent.
Preferably, the passenger elevator anti-falling safety device, wherein the collar is 10-30cm higher than the clamping block, so as to provide enough movable space for the clamping block and avoid collision between the clamping block and the fixed arm.
The beneficial effects are that:
the passenger elevator anti-falling wheel type safety device does not need electric control, gets rid of dependence on various sensors, clamps the elevator car when the elevator runs at a speed exceeding a limit speed, has a simple structure, is convenient and fast to maintain, has a buffering effect when clamped, and has small damage to passengers and the elevator car.
Drawings
Fig. 1 shows the structural intent of the angle steel.
Fig. 2 is a schematic view of a structure of the locking block.
Fig. 3 is a schematic view of a collar structure.
Fig. 4 is a schematic structural view of a passenger elevator anti-falling safety device during normal operation of the elevator.
Fig. 5 is a schematic structural view of an elevator overspeed descending safety device for preventing a passenger elevator from falling when a car is locked.
Detailed Description
The present invention is described in further detail below by way of examples to enable those skilled in the art to practice the same by reference to the specification.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1
As shown in fig. 2, 3 and 4, a passenger elevator fall protection safety device comprises: the elevator comprises a plurality of angle steels 1, spiral rails 2 and a clamping mechanism 3, wherein the angle steels 1 are vertically and equidistantly arranged and fixed on the side wall of an elevator shaft, the spiral rails 2 are steel columns with threads 201, the upper ends of the spiral columns are fixed on the top of the elevator shaft, and the lower ends of the spiral columns are fixed on the bottom of the elevator shaft; the locking mechanism 3 comprises a collar 302, two locking blocks 301 and a fixed arm 305, wherein the two locking blocks 301 are oppositely arranged at two sides outside the collar 302 and are connected with the collar 302 through a first bearing 306; the inner diameter of the lantern ring 302 is adapted to the diameter of the spiral track 2, threads 307 matched with the spiral track 2 are arranged on the inner side of the lantern ring 302, and the lantern ring is sleeved on the spiral track 2; the lower end of the collar 302 is connected with the fixed arm 305 through a second bearing 308; the fixed arm 305 is welded to the side wall of the car 4;
the spiral rail 2 is arranged between the angle steel 1 and the car 4.
When the elevator moves up and down, the lantern ring 302 rotates along the spiral rail 2 and moves along with the elevator car 4, in the process of moving along with the elevator car 4, the lantern ring 302 drives the clamping block 301 to rotate together and generate centrifugal force, the lower end of the clamping block 301 is lifted up under the action of the centrifugal force, and the clamping block 301 does not collide with the angle steel 1 at the normal running speed of the elevator car 4;
the right angle of the angle steel 1 is oriented opposite to the rotation direction of the lantern ring 302 when the car is ascending.
The vertical distance between the clamping block 301 and the angle steel 1 is not more than 20cm.
The material of the locking block 301 is martensitic stainless steel.
As shown in FIG. 1, a buffer pad 101 is arranged on the inner side of the angle steel 1
The cushion pad 101 is made of foamed aluminum.
As shown in fig. 2, the locking block 301 is a rectangular parallelepiped, a corner near one side of the car 4 at the upper part of the locking block 301 is a rounded corner 307, and a bump 303 is provided at the top of the locking block 301.
As shown in fig. 3, notches 304 matching with the protrusions 303 are provided on both sides of the upper portion of the collar 302.
The collar 302 is 15cm higher than the locking piece 301.
Example 2
As shown in fig. 5, when the running speed of the car 4 exceeds the maximum speed limit, the lifting height of the locking block 301 exceeds the critical position, and the locking block collides with the angle steel 1; the convex blocks 303 are inserted into the notches 304 on two sides of the upper part of the lantern ring 302, the spiral rail 2 is locked, and the car 4 is blocked;
although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use for which the invention is suited, and further modifications may be readily made by one skilled in the art, and the invention is therefore not to be limited to the particular details and examples shown and described herein, without departing from the general concepts defined by the claims and the equivalents thereof.
Claims (8)
1. A passenger elevator fall arrest safety device comprising: the elevator comprises a plurality of angle steels, spiral rails and a clamping mechanism, wherein the angle steels are vertically and equidistantly arranged and fixed on the side wall of an elevator shaft, the spiral rails are threaded steel columns, the upper ends of the spiral rails are fixed on the top of the elevator shaft, and the lower ends of the spiral rails are fixed on the bottom of the elevator shaft; the clamping mechanism comprises a lantern ring, two clamping blocks and a fixed arm, wherein the two clamping blocks are oppositely arranged at two sides outside the lantern ring and are connected with the lantern ring through a shaft; the inner diameter of the lantern ring is matched with the diameter of the spiral rail, threads matched with the spiral rail are arranged on the inner side of the lantern ring, and the lantern ring is sleeved on the spiral rail; the lower end of the lantern ring is connected with a fixed arm shaft; the fixed arm is welded on the side wall of the car;
the spiral rail is arranged between the angle steel and the car;
when the elevator moves up and down, the lantern ring rotates along the spiral rail and moves along with the elevator car, in the process of moving along with the elevator car, the lantern ring drives the clamping block to rotate together and generate centrifugal force, the lower end of the clamping block is lifted up under the action of the centrifugal force, and the clamping block does not collide with the angle steel under the normal elevator car running speed;
when the running speed of the car exceeds the maximum speed limit, the lifting height of the clamping block exceeds the critical position, and the clamping block collides with the angle steel and is clamped;
the right angle orientation of angle steel is opposite with the rotation direction of lantern ring when the car goes up.
2. A passenger conveyor fall protection safety device according to claim 1, wherein the vertical distance between the stop block and the angle steel is not more than 20cm.
3. A passenger conveyor fall protection safety device according to claim 1, wherein the material of the detent is martensitic stainless steel.
4. A passenger elevator fall protection safety device as defined in claim 1, wherein a buffer pad is provided inside the angle steel.
5. A passenger conveyor fall protection safety device according to claim 4 wherein the cushion material is foamed aluminum.
6. The passenger elevator fall protection safety device according to claim 1, wherein the locking block is a cuboid, a side angle of the upper part of the locking block near the car is a round angle, and a protruding block is arranged at the top of the locking block.
7. A passenger elevator fall protection safety device as defined in claim 1, wherein notches are provided on both sides of the upper portion of the collar to match the lugs.
8. A passenger conveyor fall protection device as claimed in claim 1 wherein the collar is 10-30cm higher than the stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810321024.5A CN108382950B (en) | 2018-04-11 | 2018-04-11 | Anti-falling safety device for passenger elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810321024.5A CN108382950B (en) | 2018-04-11 | 2018-04-11 | Anti-falling safety device for passenger elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108382950A CN108382950A (en) | 2018-08-10 |
| CN108382950B true CN108382950B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810321024.5A Active CN108382950B (en) | 2018-04-11 | 2018-04-11 | Anti-falling safety device for passenger elevator |
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| CN (1) | CN108382950B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005104653A (en) * | 2003-09-30 | 2005-04-21 | Toshiba Elevator Co Ltd | Elevator |
| JP2008044713A (en) * | 2006-08-15 | 2008-02-28 | Shangyin Sci & Technol Co Ltd | Two-way screw type elevator drive mechanism |
| CN101554971A (en) * | 2009-04-07 | 2009-10-14 | 孙长利 | Rope-free and falling-prevention freestanding elevator |
| CN103626004A (en) * | 2012-08-28 | 2014-03-12 | 李文嫄 | Fall protection device of lifting elevator |
| CN203699596U (en) * | 2013-10-28 | 2014-07-09 | 贺乐平 | Safe elevator |
| CN203865762U (en) * | 2014-06-13 | 2014-10-08 | 赫仲伟 | Novel automatic-resetting anti-falling protector of lifter |
| CN107128770A (en) * | 2017-05-11 | 2017-09-05 | 合肥工业大学 | One kind is used for vertical-lift elevator anti-falling self-locking device |
| CN107524286A (en) * | 2017-09-20 | 2017-12-29 | 孙立民 | A kind of falling proof device of construction attachment type raise scaffold |
| CN208471307U (en) * | 2018-04-11 | 2019-02-05 | 波士顿电梯（湖州）有限公司 | Elevator falling-proof safety device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150060211A1 (en) * | 2013-08-29 | 2015-03-05 | Ching-Feng Chou | Fall prevention device for an elevator |
-
2018
- 2018-04-11 CN CN201810321024.5A patent/CN108382950B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005104653A (en) * | 2003-09-30 | 2005-04-21 | Toshiba Elevator Co Ltd | Elevator |
| JP2008044713A (en) * | 2006-08-15 | 2008-02-28 | Shangyin Sci & Technol Co Ltd | Two-way screw type elevator drive mechanism |
| CN101554971A (en) * | 2009-04-07 | 2009-10-14 | 孙长利 | Rope-free and falling-prevention freestanding elevator |
| CN103626004A (en) * | 2012-08-28 | 2014-03-12 | 李文嫄 | Fall protection device of lifting elevator |
| CN203699596U (en) * | 2013-10-28 | 2014-07-09 | 贺乐平 | Safe elevator |
| CN203865762U (en) * | 2014-06-13 | 2014-10-08 | 赫仲伟 | Novel automatic-resetting anti-falling protector of lifter |
| CN107128770A (en) * | 2017-05-11 | 2017-09-05 | 合肥工业大学 | One kind is used for vertical-lift elevator anti-falling self-locking device |
| CN107524286A (en) * | 2017-09-20 | 2017-12-29 | 孙立民 | A kind of falling proof device of construction attachment type raise scaffold |
| CN208471307U (en) * | 2018-04-11 | 2019-02-05 | 波士顿电梯（湖州）有限公司 | Elevator falling-proof safety device |
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| CN108382950A (en) | 2018-08-10 |
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