CN111646337B - Floatable elevator safety tongs - Google Patents
Floatable elevator safety tongs Download PDFInfo
- Publication number
- CN111646337B CN111646337B CN202010457676.9A CN202010457676A CN111646337B CN 111646337 B CN111646337 B CN 111646337B CN 202010457676 A CN202010457676 A CN 202010457676A CN 111646337 B CN111646337 B CN 111646337B
- Authority
- CN
- China
- Prior art keywords
- guide rail
- wedge block
- pull rod
- frame
- floatable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005192 partition Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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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
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a floatable elevator safety tongs, which belongs to the field of elevator accessories and comprises a mounting frame fixedly arranged at the position of an elevator car corresponding to a car guide rail and a supporting frame positioned on the car guide rail, wherein the supporting frame is movably connected with the mounting frame; a first guide rail and a second guide rail are respectively fixedly arranged in the support frame corresponding to the two sides of the car guide rail, and a first wedge block and a second wedge block are respectively slidably arranged in the first guide rail and the second guide rail; one side of the mounting frame is fixedly provided with a connecting plate, and a pull rod used for being connected with a speed limiter wire rope to pull the second wedge block is hinged between the second wedge block and the connecting plate. The floatable elevator safety tongs can effectively avoid car displacement caused by safety tongs stopping, avoid impact and deformation on the car and guide shoes, improve the stability and safety of emergency stopping, and simultaneously have convenient installation and are suitable for popularization and use.
Description
Technical Field
The invention belongs to the technical field of elevator accessories, and particularly relates to a floatable elevator safety tongs.
Background
The safety gear is a safety protection device of an elevator, and when the elevator exceeds the limit speed set by an elevator speed limiter or under the condition that suspension ropes break and loose, the safety gear stops a car and clamps the car on a guide rail under the operation of the speed limiter. It provides effective protection for the safe operation of the elevator.
However, the existing elevator safety tongs device is generally fixed, when the elevator is stopped in an emergency, the elevator car is easy to displace when the safety tongs are stopped, the impact and deformation to the elevator car and guide shoes are avoided, and the stability and safety of the emergency stop are improved.
Disclosure of Invention
The invention aims to provide a floatable elevator safety tongs, which solves the problems of car displacement, impact and deformation on a car and guide shoes caused by the fact that the car is stopped by safety tongs in the prior fixed installation in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a floatable elevator safety tongs comprises a mounting frame fixedly mounted at the position of an elevator car corresponding to a car guide rail and a supporting frame positioned on the car guide rail, wherein the supporting frame is movably connected with the mounting frame;
a first guide rail and a second guide rail are respectively fixedly arranged in the support frame corresponding to the two sides of the car guide rail, and a first wedge block and a second wedge block are respectively slidably arranged in the first guide rail and the second guide rail;
a connecting plate is fixedly arranged on one side of the mounting frame, a pull rod used for being connected with a speed limiter wire rope to pull the second wedge is hinged between the second wedge and the connecting plate, and a bolt connected with the speed limiter wire rope is inserted on the pull rod; the safety switch which rotates along with the pull rod is arranged on the connecting plate;
the second wedge blocks slide on the second guide rails to be close to or far away from the car guide rails under the drive of the pull rods, and clamp or release the car guide rails in a matched mode with the first wedge blocks.
Preferably, a baffle is welded at the middle position of one surface of the mounting frame far away from the supporting frame, and the supporting frame is connected with the mounting frame through countersunk bolts;
perforations are formed in the positions, corresponding to the countersunk bolts, of the two sides of the mounting frame, corresponding to the partition plate, and the countersunk bolts penetrate through the perforations and are in threaded connection with the supporting frame;
the through holes are long strips, and the countersunk bolts can move in the through holes to be close to or far away from the partition plate.
Preferably, at least one side of the partition plate is provided with an L-shaped base plate, one vertical surface of the L-shaped base plate is positioned on the mounting frame, and the countersunk head bolts penetrate through the vertical surface of the L-shaped base plate, which is correspondingly positioned on the mounting frame;
a connecting piece is arranged between the other vertical surface of the L-shaped backing plate and the partition plate, and the connecting piece is movably connected with the L-shaped backing plate and the partition plate;
the outer surface wall of the connecting piece is sleeved with a first reset spring, and two ends of the first reset spring are fixedly connected with the L-shaped base plate and the partition plate respectively.
Preferably, a first sliding block and a second sliding block are respectively arranged between the first wedge block and the first guide rail and between the second wedge block and the second guide rail.
Preferably, a baffle is mounted at one end of the support frame corresponding to the first wedge block through a fixing piece, the baffle is in sliding connection with the fixing piece, and the baffle is fixedly connected with the first wedge block through a screw;
the fixing piece is sleeved with a second reset spring, and two ends of the second reset spring are fixedly connected with the baffle plate and the fixing piece respectively.
Preferably, the first guide rail is fixedly connected with the support frame through a support rod, the outer surface wall of the support rod is sleeved with a support piece, and two ends of the support piece are respectively contacted with the first guide rail and the support frame.
Preferably, a first limit bolt is fixedly installed at one end of the second wedge block, and a second limit bolt for limiting the second wedge block is fixedly installed at one end, away from the first limit bolt, of the second guide rail.
Preferably, a rotating shaft is arranged at one end of the pull rod and one end of the safety switch, which corresponds to the connecting plate, and a connecting frame is fixedly arranged at one end of the second wedge block, which is close to the pull rod, and the connecting frame is connected with the pull rod through a connecting column;
the connecting column is rotationally connected with the connecting frame, and a bar-shaped groove for moving the connecting column is formed in the pull rod.
Preferably, a limiting column for limiting the pull rod is fixedly arranged on the connecting plate.
Preferably, an inserted pin for limiting the inserted pin is inserted into one end of the inserted pin away from the safety switch.
The floatable elevator safety tongs can effectively avoid car displacement caused by safety tongs stopping, avoid impact and deformation on the car and guide shoes, improve the stability and safety of emergency stopping, and simultaneously have convenient installation and are suitable for popularization and use.
Drawings
Fig. 1 is a schematic perspective view of a floatable elevator safety gear in a rear view direction;
fig. 2 is a schematic perspective view of a floatable elevator safety gear in a front view;
fig. 3 is a schematic view of the structure of a mounting bracket in a floatable elevator safety gear;
fig. 4 is an enlarged schematic view of the structure at a in fig. 2.
Detailed Description
The invention is further described below with reference to examples.
The following examples are illustrative of the present invention but are not intended to limit the scope of the invention. The conditions in the examples can be further adjusted according to specific conditions, and simple modifications of the method of the invention under the premise of the conception of the invention are all within the scope of the invention as claimed.
As shown in fig. 1-4, the invention provides a floatable elevator safety tongs, which comprises a mounting frame 1 fixedly mounted at the position of an elevator car corresponding to a car guide rail and a supporting frame 2 positioned on the car guide rail, wherein the supporting frame 2 is movably connected with the mounting frame 1;
a first guide rail 3 and a second guide rail 4 are respectively fixedly arranged at two sides of the inner part of the support frame 2 corresponding to the car guide rail, and a first wedge block 5 and a second wedge block 6 are respectively slidably arranged in the first guide rail 3 and the second guide rail 4;
a connecting plate 17 is fixedly arranged on one side of the mounting frame 1, a pull rod 18 used for being connected with a speed limiter wire rope to pull the second wedge block 6 is hinged between the second wedge block 6 and the connecting plate 17, and a bolt 21 connected with the speed limiter wire rope is inserted on the pull rod 18; the connecting plate 17 is provided with a safety switch 19 which rotates along with the pull rod 18;
the second wedge block 6 slides on the second guide rail 4 to approach or separate from the car guide rail under the drive of the pull rod 18, and is matched with the first wedge block 5 to clamp or release the car guide rail.
When the elevator is decelerated or stopped, the pull rod 18 is pulled by the speed limiter steel wire rope, so that the pull rod 18 drives the second wedge block 6 to move on the second guide rail 4 to be in contact with the car guide rail, after being matched with the first wedge block 5, the first wedge block 5 and the second wedge block 6 are clamped on the car guide rail, thus the stopping work of the elevator car is completed, the support frame 2 floats on the mounting frame 1, and when the elevator is stopped, the first wedge block 5 and the second wedge block 6 are clamped on the car guide rail to drive the support frame 2 to deviate, thereby effectively avoiding deformation and damage of the car guide rail caused by the fixation of the support frame 2, and further improving the safety of the elevator stopping; meanwhile, the support frame 2, the first wedge block 5 and the second wedge block 6 can float on the mounting frame 1, and when the safety tongs are mounted, the mounting accuracy can be reduced to a certain extent, so that the mounting difficulty of the safety tongs is reduced.
Specifically, in order to enable the support frame 2, the first wedge block 5 and the second wedge block 6 to float on the mounting frame 1, as shown in fig. 1, 2 and 3, a baffle plate 26 is welded at the middle position of one surface of the mounting frame 1 away from the support frame 2, and the support frame 2 is connected with the mounting frame 1 through a countersunk bolt 27;
the positions of the two sides of the mounting frame 1 corresponding to the partition plate 26 and corresponding to the countersunk head bolts 27 are respectively provided with a through hole 30, and the countersunk head bolts 27 penetrate through the through holes 30 and are in threaded connection with the support frame 2;
the perforations 30 are elongated and the countersunk bolts 27 are able to move within the perforations 30 toward and away from the separator 26.
When the elevator car is stopped, under the action of the car guide rail, the first wedge block 5 and the second wedge block 6 drive the countersunk head bolts 27 to float on the mounting frame 1, so that the support frame 2 floats on the mounting frame 1, and the deformation and damage of the car guide rail caused by the position fixing of the first wedge block 5 and the second wedge block 6 are avoided.
In order to enable the support frame 2, the first wedge block 5 and the second wedge block 6 to automatically reset after floating, as shown in fig. 1, at least one side of the partition plate 26 is provided with an L-shaped base plate 24, one vertical surface of the L-shaped base plate 24 is located on the mounting frame 1, and countersunk bolts 27 penetrate through the vertical surface of the L-shaped base plate 24, which is located on the mounting frame 1 correspondingly;
a connecting piece 28 is arranged between the other vertical surface of the L-shaped backing plate 24 and the partition plate 26, and the connecting piece 28 is movably connected with the L-shaped backing plate 24 and the partition plate 26;
the outer surface wall of the connecting piece 28 is sleeved with a first return spring 29, and two ends of the first return spring 29 are fixedly connected with the L-shaped backing plate 24 and the partition plate 26 respectively.
Through setting up L type backing plate 24, connecting piece 28 and first reset spring 29, after support frame 2, first voussoir 5 and second voussoir 6 float and release under the car guide rail drive, under the elasticity effect of first reset spring 29, promote L type backing plate 24 and remove to drive countersunk head bolt 27 through L type backing plate 24, drive support frame 2, first voussoir 5 and second voussoir 6 through countersunk head bolt 27 and reset.
In order to reduce the friction force between the first wedge 5 and the first guide rail 3 and between the second wedge 6 and the second guide rail 4, as shown in fig. 2, a first slider 7 and a second slider 8 are respectively disposed between the first wedge 5 and the first guide rail 3 and between the second wedge 6 and the second guide rail 4.
Specifically, in order to effectively limit the first wedge 5 and buffer impact force generated during braking, as shown in fig. 2, a baffle 11 is mounted at one end of the support frame 2 corresponding to the first wedge 5 through a fixing piece 12, the baffle 11 is slidably connected with the fixing piece 12, and the baffle 11 is fixedly connected with the first wedge 5 through a screw;
the fixing piece 12 is sleeved with a second return spring 13, and two ends of the second return spring 13 are fixedly connected with the baffle 11 and the fixing piece 12 respectively.
One end of the supporting frame 2 is provided with a baffle plate 11 through a fixing piece 12 and a second reset spring 13 to limit the first wedge block 5, the baffle plate 11 is fixed with the first wedge block 5 through a screw, when the elevator is stopped, the first wedge block 5 can have a certain sliding space in the first guide rail 3, and meanwhile, impact force generated by stopping is buffered under the action of the second reset spring 13, so that the impact force generated by stopping is effectively reduced, the car guide rail is prevented from being broken due to overlarge rigidity, and the safety of elevator stopping is further improved.
In order to ensure the stability of the structure of the first guide rail 3, as shown in fig. 2, the first guide rail 3 is fixedly connected with the support frame 2 through a support rod 9, a support member 10 is sleeved on the outer surface wall of the support rod 9, and two ends of the support member 10 are respectively contacted with the first guide rail 3 and the support frame 2.
The first guide rail 3 is fixed on the support frame 2 through the support rod 9 and the support piece 10, so that the first guide rail 3 is kept stable, and the first guide rail 3 is prevented from expanding outwards when stopping, and the stopping efficiency is prevented from being influenced.
It should be noted that the support member 10 may be composed of a plurality of shims in contact with each other, which are fitted over the support rod 9 and spaced between the support frame 2 and the first rail 3, so as to stably support the first rail 3 on the support frame 2.
In order to avoid the second wedge 6 from falling out of the second guide rail 4, the stability of the second wedge 6 is ensured, as shown in fig. 2 and 4, a first limit bolt 16 is fixedly mounted at one end of the second wedge 6, and a second limit bolt 31 for limiting the second wedge 6 is fixedly mounted at one end of the second guide rail 4 away from the first limit bolt 16.
In order to enable the pull rod 18 to act on the second wedge block 6 under the condition of no deformation, so that the second wedge block 6 moves, as shown in fig. 1 and 2, one end of the pull rod 18 and one end of the safety switch 19, which corresponds to the connecting plate 17, are provided with a rotating shaft 20, one end of the second wedge block 6, which is close to the pull rod 18, is fixedly provided with a connecting frame 14, and the connecting frame 14 is connected with the pull rod 18 through a connecting column 15;
the connecting column 15 is rotatably connected with the connecting frame 14, and the pull rod 18 is provided with a strip-shaped groove for moving the connecting column 15.
When stopping, the speed limiter wire rope pulls the pull rod 18, one end of the pull rod 18 rotates on the connecting plate 17, and the other end rotates on the connecting plate 17 by taking the rotating shaft 20 as the center of a circle, so that the second wedge block 6 is pushed to move, the second wedge block 6 is close to the car guide rail, and the stopping work is completed.
In order to effectively limit the pull rod 18, the rotation amplitude of the pull rod 18 caused by gravity is reduced to be too large, so that the pull rod 18 is kept stable, and as shown in fig. 2, a limiting post 23 for limiting the pull rod 18 is fixedly arranged on the connecting plate 17.
In addition, in order to ensure that the safety switch 19 is stably mounted on the pull rod 18, as shown in fig. 2, one end of the plug pin 21 away from the safety switch 19 is inserted with a plug pin 22 for limiting the plug pin 21.
After the safety switch 19 is fixed by the bolt 21, one end of the bolt 21 passes through the pull rod 18, and one end of the bolt 21, which is far away from the safety switch 19, is limited on the pull rod 18 through the plug pin 22, so that the safety switch 19 is prevented from falling off.
It should be noted that the latch 21 is a pulling stress point of the pull rod 18, and when the speed limiter is stopped, the pull rod 18 is pulled by the latch 21 to perform the stop operation.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A floatable elevator safety gear which is characterized in that: the elevator car guide rail device comprises a mounting frame (1) fixedly mounted at the position of an elevator car corresponding to the elevator car guide rail and a support frame (2) positioned on the elevator car guide rail, wherein the support frame (2) is movably connected with the mounting frame (1);
a baffle plate (26) is welded at the middle position of one surface of the mounting frame (1) far away from the supporting frame (2), and the supporting frame (2) is connected with the mounting frame (1) through countersunk bolts (27);
the positions, corresponding to the countersunk head bolts (27), of the two sides of the mounting frame (1) corresponding to the partition plates (26) are provided with through holes (30), and the countersunk head bolts (27) penetrate through the through holes (30) and are in threaded connection with the supporting frame (2);
the through hole (30) is long, and the countersunk head bolt (27) can move in the through hole (30) to be close to or far away from the partition plate (26);
at least one side of the partition plate (26) is provided with an L-shaped base plate (24), one vertical surface of the L-shaped base plate (24) is positioned on the mounting frame (1), and the countersunk bolts (27) penetrate through the vertical surface of the L-shaped base plate (24) which is correspondingly positioned on the mounting frame (1);
a connecting piece (28) is arranged between the other vertical surface of the L-shaped backing plate (24) and the partition plate (26), and the connecting piece (28) is movably connected with the L-shaped backing plate (24) and the partition plate (26);
a first reset spring (29) is sleeved on the outer surface wall of the connecting piece (28), and two ends of the first reset spring (29) are fixedly connected with the L-shaped backing plate (24) and the partition plate (26) respectively;
a first guide rail (3) and a second guide rail (4) are respectively and fixedly arranged at two sides of the inner part of the supporting frame (2) corresponding to the car guide rail, and a first wedge block (5) and a second wedge block (6) are respectively and slidably arranged in the first guide rail (3) and the second guide rail (4);
a connecting plate (17) is fixedly arranged on one side of the mounting frame (1), a pull rod (18) used for being connected with a speed limiter wire rope to pull the second wedge block (6) is hinged between the second wedge block (6) and the connecting plate (17), and a bolt (21) connected with the speed limiter wire rope is inserted on the pull rod (18); a safety switch (19) which rotates along with the pull rod (18) is arranged on the connecting plate (17);
the second wedge block (6) slides on the second guide rail (4) to be close to or far away from the car guide rail under the drive of the pull rod (18), and is matched with the first wedge block (5) to clamp or release the car guide rail.
2. Floatable elevator safety gear according to claim 1, characterized in that: a first sliding block (7) and a second sliding block (8) are respectively arranged between the first wedge block (5) and the first guide rail (3) and between the second wedge block (6) and the second guide rail (4).
3. Floatable elevator safety gear according to claim 2, characterized in that: a baffle (11) is arranged at one end of the support frame (2) corresponding to the first wedge block (5) through a fixing piece (12), the baffle (11) is in sliding connection with the fixing piece (12), and the baffle (11) is fixedly connected with the first wedge block (5) through a screw;
the fixing piece (12) is sleeved with a second reset spring (13), and two ends of the second reset spring (13) are fixedly connected with the baffle piece (11) and the fixing piece (12) respectively.
4. Floatable elevator safety gear according to claim 2, characterized in that: the first guide rail (3) is fixedly connected with the support frame (2) through a support rod (9), the outer surface wall of the support rod (9) is sleeved with a support piece (10), and two ends of the support piece (10) are respectively contacted with the first guide rail (3) and the support frame (2).
5. Floatable elevator safety gear according to claim 2, characterized in that: one end of the second wedge block (6) is fixedly provided with a first limit bolt (16), and one end of the second guide rail (4) away from the first limit bolt (16) is fixedly provided with a second limit bolt (31) for limiting the second wedge block (6).
6. Floatable elevator safety gear according to claim 1, characterized in that: a rotating shaft (20) is arranged at one end of the pull rod (18) and one end of the safety switch (19) corresponding to the connecting plate (17), a connecting frame (14) is fixedly arranged at one end of the second wedge block (6) close to the pull rod (18), and the connecting frame (14) is connected with the pull rod (18) through a connecting column (15);
the connecting column (15) is rotationally connected with the connecting frame (14), and the pull rod (18) is provided with a strip-shaped groove for moving the connecting column (15).
7. The floatable elevator safety gear according to claim 6, characterized in that: and a limiting column (23) for limiting the pull rod (18) is fixedly arranged on the connecting plate (17).
8. Floatable elevator safety gear according to claim 1, characterized in that: one end of the bolt (21) far away from the safety switch (19) is inserted with a plug pin (22) for limiting the bolt (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457676.9A CN111646337B (en) | 2020-05-26 | 2020-05-26 | Floatable elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457676.9A CN111646337B (en) | 2020-05-26 | 2020-05-26 | Floatable elevator safety tongs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111646337A CN111646337A (en) | 2020-09-11 |
| CN111646337B true CN111646337B (en) | 2024-03-12 |
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ID=72342045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010457676.9A Active CN111646337B (en) | 2020-05-26 | 2020-05-26 | Floatable elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111646337B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538239B (en) * | 2022-02-25 | 2023-07-28 | 浙江智菱科技有限公司 | Elevator safety lifting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526306Y (en) * | 2002-03-28 | 2002-12-18 | 河北东方机械厂 | Safety equipment for elevator |
| EP1942071A2 (en) * | 2007-01-08 | 2008-07-09 | Thyssenkrupp Elevator Manufacturing Spain S.L. | Flotation means for the correct wedging of a safety device for life |
| CN102887411A (en) * | 2012-10-11 | 2013-01-23 | 浙江南奥电梯有限公司 | Safety passenger elevator |
| KR20140013624A (en) * | 2012-07-25 | 2014-02-05 | (주)모든엘리베이터 | Gradually lifts the emergency stop device actuated type bidirectional |
| CN205709303U (en) * | 2016-06-24 | 2016-11-23 | 亚洲富士长林电梯（新余）有限公司 | A kind of elevator safety gear |
| CN106241549A (en) * | 2016-08-30 | 2016-12-21 | 浙江西子富沃德电机有限公司 | A kind of elevator bidirectional safety tongs |
| CN208932733U (en) * | 2018-08-10 | 2019-06-04 | 广东联合富士电梯有限公司 | A kind of safety tongs arrestment mechanism |
| CN213059759U (en) * | 2020-05-26 | 2021-04-27 | 上海乐天电梯部件有限公司 | Floatable elevator safety tongs |
-
2020
- 2020-05-26 CN CN202010457676.9A patent/CN111646337B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526306Y (en) * | 2002-03-28 | 2002-12-18 | 河北东方机械厂 | Safety equipment for elevator |
| EP1942071A2 (en) * | 2007-01-08 | 2008-07-09 | Thyssenkrupp Elevator Manufacturing Spain S.L. | Flotation means for the correct wedging of a safety device for life |
| KR20140013624A (en) * | 2012-07-25 | 2014-02-05 | (주)모든엘리베이터 | Gradually lifts the emergency stop device actuated type bidirectional |
| CN102887411A (en) * | 2012-10-11 | 2013-01-23 | 浙江南奥电梯有限公司 | Safety passenger elevator |
| CN205709303U (en) * | 2016-06-24 | 2016-11-23 | 亚洲富士长林电梯（新余）有限公司 | A kind of elevator safety gear |
| CN106241549A (en) * | 2016-08-30 | 2016-12-21 | 浙江西子富沃德电机有限公司 | A kind of elevator bidirectional safety tongs |
| CN208932733U (en) * | 2018-08-10 | 2019-06-04 | 广东联合富士电梯有限公司 | A kind of safety tongs arrestment mechanism |
| CN213059759U (en) * | 2020-05-26 | 2021-04-27 | 上海乐天电梯部件有限公司 | Floatable elevator safety tongs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111646337A (en) | 2020-09-11 |
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