CN116281520A - Elevator car stand that stability is good - Google Patents
Elevator car stand that stability is good Download PDFInfo
- Publication number
- CN116281520A CN116281520A CN202310358679.0A CN202310358679A CN116281520A CN 116281520 A CN116281520 A CN 116281520A CN 202310358679 A CN202310358679 A CN 202310358679A CN 116281520 A CN116281520 A CN 116281520A
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- frame
- elevator car
- frames
- stress
- good stability
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- 239000000872 buffer Substances 0.000 claims abstract description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 37
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 6
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0206—Car frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
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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)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention provides an elevator car upright post with good stability, which relates to the technical field of elevator car components and comprises a fixing frame; the middle position of the inside of the fixing frame is fixedly connected with a stay bar, the stay bar is of a T-shaped design, the middle lower position of the stay bar is rotationally connected with the lower end positions of the two long plates, and the lower end positions of the two long plates are rotationally connected. After the top position stress of the stress frame and the position of the car are limited and fixed, the roller at the upper end of the supporting arm of the buffer is stressed by the downward acting force of the stress frame, the supporting arm of the buffer is inclined, the top position of the damper is attached to the upper position inside the car, and the acting force applied by the buffer is shared by the damper. The problem of current elevator car stand can lead to the elevator car stand to have the condition of deformation under the influence of gravity, and the car stand of deformation influences normal use is solved.
Description
Technical Field
The invention relates to the technical field of elevator car components, in particular to an elevator car upright post with good stability.
Background
The elevator serves a plurality of specific floors in a building, the elevator runs on at least two rows of permanent transportation equipment which are perpendicular to a horizontal plane or move along a rigid track with an inclination angle smaller than 15 degrees with a plumb line, the elevator is a box-shaped space for carrying and transporting personnel and materials, the elevator generally comprises main components such as an elevator bottom, an elevator wall, an elevator top, an elevator door and the like, the elevator is an elevator body component for carrying passengers or goods and other loads, and an elevator upright is a stress member of the elevator, and is connected with an elevator upper beam and an elevator lower beam through the upright to form a fixed frame of the elevator.
Similar to current elevator car posts, the following deficiencies also exist: the elevator car stand is mostly fixed when setting up, can lead to the elevator car stand to have the circumstances of deformation under the influence of gravity, and the car stand of deformation influences normal use, can not independently reset, can only overhaul the maintenance through the manual work afterwards.
Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elevator car column with good stability, which has a higher practical value.
Disclosure of Invention
The invention provides a purpose and an effect of an elevator car upright post with good stability, which specifically comprise the following steps: a fixing frame; the inside intermediate position fixedly connected with vaulting pole of mount, the vaulting pole is T shape design, the well below position of vaulting pole rotates with the lower extreme position of two longplates to be connected, the lower extreme position of two longplates rotates to be connected, the intermediate position of two longplates rotates with the lower extreme position of a shortboard to be connected respectively, two shortboards are symmetrical design, the upper end position of two shortboards rotates to be connected, and the intermediate rotation hookup location in the middle of two shortboards upper end rotates with the upper end position of connecting rod to be connected, the upper end position of two longplates is provided with the dispersion board respectively, two dispersion boards are symmetrical design, and two dispersion boards are located the inside both sides position of mount, the bottom position of connecting rod and the intermediate position fixed connection of the bottom rear end of stabilizing frame.
Further, the two long plates are located at the inner positions of the fixing frame, and the connecting rod penetrates through the middle positions of rotation of the two long plates.
Further, a sliding groove is formed in the middle position of the front end of the stabilizing frame, a threaded column is rotatably connected to the middle position of the inner portion of the stabilizing frame, an adjusting frame is slidably connected in the sliding groove of the stabilizing frame, a threaded hole is formed in the middle position of the top of the adjusting frame, and the threaded column is rotatably connected to the threaded hole of the adjusting frame.
Further, the left side position and the right side position of the adjusting frame are respectively connected with an adaptive frame in a rotating mode, the two adaptive frames are symmetrically designed, the front end positions of the inner parts of the two adaptive frames are respectively connected with an extending frame in a sliding mode, and the two extending frames are designed in an L shape.
Further, two the front end upper position sliding connection of extension frame has the atress frame, and the well below position of two atress frames all is provided with the spring, and the spring upper end position that the atress frame set up is laminated with extension frame inside upper end position mutually.
Further, two the front end internal position of extension frame all is provided with a buffer, and the rear end position elastic connection of buffer has a support arm, and the upper end position of every buffer support arm all is provided with the gyro wheel, and the gyro wheel of two buffer backup pad upper ends all laminates with a atress frame bottom position mutually.
Furthermore, the bottom positions of the two extension frames are fixedly connected with a reversing frame, and two side positions of the front ends of the two reversing frames are respectively and rotatably connected with an adjusting support plate.
Further, a damper is arranged at the position above the front end of each adjusting support plate, the damper is of a telescopic rod design, a spring is sleeved at the middle position of the damper, and the upper end of the damper is lower than the upper end of the stress frame.
Compared with the prior art, the invention has the following beneficial effects:
1. the back position of the fixing frame is connected with the position of the car, the bottom position of the stabilizing frame is attached to the position below the car, the threaded column is rotated subsequently, the adjusting frame slides in the up-down direction in the sliding groove of the stabilizing frame through the matching of the threaded column and the threaded hole of the adjusting frame, when the adjusting frame ascends in the sliding groove of the stabilizing frame, the parts arranged on the adjusting frame synchronously move upwards until the top position of the stress frame is attached to the top position of the car, meanwhile, the radian placement position of the stress frame is adjusted through the rotation of the adjusting frame and the adapting frame, the top position of the stress frame is attached to the proper position of the car, the extending range of the position of the stress frame can be adjusted when the extending frame and the stress frame slide in a telescopic manner, the extending and attaching mode can be adapted to the position of the inner side of the top of the car, and the stress area of the stress frame is enlarged.
2. After the position of the stress frame is determined, the threaded column is continuously rotated, so that the adjusting frame moves upwards in the chute of the stabilizing frame, the top position of the stress frame is attached to the upper position of the car, acting force is applied to the stress frame, the position of the stress frame is limited, the rotation amplitude of the adaptive frame is not required to be fixed independently, and the extending distance between the adaptive frame and the extending frame is not required to be fixed independently.
3. After the top position stress of the stress frame and the position of the car are limited and fixed, the roller at the upper end of the supporting arm of the buffer is stressed by the downward acting force of the stress frame, the supporting arm of the buffer is inclined, the top position of the damper is attached to the upper position inside the car, and the acting force applied by the buffer is shared by the damper.
4. When the stress frame and the damper are subjected to downward acting force, the downward acting force of the adjusting frame is transmitted to the stabilizing frame by combining the threaded column with the threaded hole of the adjusting frame, so that the stabilizing frame is pressed downwards, the connecting rod is driven to slide downwards in the fixing frame by combining the bottom position of the connecting rod with the middle position of the bottom rear end of the stabilizing frame, the connecting rod is driven to slide downwards in the fixing frame when the stabilizing frame is pressed downwards, the two short plates are driven to move downwards when the connecting rod slides downwards, the two long plates are driven to rotate, the distance between the upper end positions of the two long plates is kept away, the dispersing plates at the two sides of the upper end of the two long plates are respectively attached to the two inner side positions of the fixing frame, the downward acting force of the stabilizing frame is converted into transverse acting force, and the downward acting force of the stabilizing frame is dispersed in a mechanical reversing mode, so that the stability of the whole stabilizing frame is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.
In the drawings:
fig. 1 is a schematic diagram showing a left-view state structure of an elevator car column according to an embodiment of the present invention;
fig. 2 is a schematic diagram showing a side view of an elevator car column according to an embodiment of the invention;
fig. 3 is a schematic diagram showing a bottom side view of an elevator car column according to an embodiment of the invention;
FIG. 4 is a schematic view showing a partially enlarged structure at A in FIG. 3 according to an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the overall rear view state structure of a fixing frame according to an embodiment of the present invention;
FIG. 6 is a schematic diagram showing the overall rear side view of the mount according to an embodiment of the present invention;
FIG. 7 shows a schematic diagram of an overall semi-cutaway top view of an adjustment frame according to an embodiment of the present invention;
fig. 8 shows a schematic diagram of the overall semi-cutaway side view of an adjusting bracket according to an embodiment of the invention.
List of reference numerals
1. A fixing frame; 101. a brace rod; 102. a short plate; 103. a long plate; 104. a dispersion plate; 105. a connecting rod; 2. a stabilizing rack; 201. a threaded column; 3. an adjusting frame; 301. an adaptation frame; 302. an extension frame; 303. a stress frame; 304. a buffer; 305. a reversing frame; 306. adjusting the support plate; 307. a damper.
Description of the embodiments
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
Examples
As shown in fig. 1 to 8:
the invention provides an elevator car upright post with good stability, which comprises: a fixing frame 1; the middle position inside the mount 1 is fixedly connected with brace 101, brace 101 is T shape design, the well below position of brace 101 rotates with the lower extreme position of two longplates 103 to be connected, the lower extreme position of two longplates 103 rotates to be connected, the intermediate position of two longplates 103 rotates with the lower extreme position of a shortboard 102 respectively to be connected, two shortboards 102 are symmetrical design, the upper end position of two shortboards 102 rotates to be connected, and the intermediate rotation hookup location in the middle of two shortboards 102 rotates with the upper end position of connecting rod 105 to be connected, the upper end position of two longboards 103 is provided with dispersion board 104 respectively, two dispersion board 104 is symmetrical design, and two dispersion board 104 are located the inside both sides position of mount 1, the bottom position of connecting rod 105 is fixed with the intermediate position of the bottom rear end of stabilizing frame 2, two longboards 103 are located the inside position of mount 1, connecting rod 105 passes the intermediate position of two longboards 103 rotation.
Wherein, the spout has been seted up to the front end intermediate position of stabilizing frame 2, the inside intermediate position rotation of stabilizing frame 2 is connected with screw thread post 201, sliding connection has alignment jig 3 in the spout of stabilizing frame 2, screw hole has been seted up to the top intermediate position of alignment jig 3, screw hole internal rotation of alignment jig 3 is connected with screw thread post 201, the left and right sides position of alignment jig 3 is rotated respectively and is connected with an adaptation frame 301, two adaptation frames 301 are symmetrical design, the inside front end position of two adaptation frames 301 all sliding connection has an extension frame 302, two extension frames 302 are L shape design.
Wherein, the upper positions of the front ends of the two extension frames 302 are slidingly connected with a stress frame 303, the middle lower positions of the two stress frames 303 are respectively provided with a spring, the upper positions of the springs arranged on the stress frames 303 are jointed with the upper positions of the interiors of the extension frames 302, the interiors of the front ends of the two extension frames 302 are respectively provided with a buffer 304, the rear ends of the buffers 304 are elastically connected with a supporting arm, the upper positions of the supporting arms of each buffer 304 are respectively provided with a roller, the rollers at the upper ends of the supporting plates of the two buffers 304 are jointed with the bottom positions of the stress frames 303, the bottom positions of the two extension frames 302 are respectively and fixedly connected with a reversing frame 305, the two side positions of the front ends of the two reversing frames 305 are respectively and rotatably connected with an adjusting supporting plate 306, the upper positions of the front ends of each adjusting supporting plate 306 are respectively provided with a damper 307, the damper 307 is telescopic rod design, and the spring has been cup jointed to the intermediate position of damper 307, the high height that is less than the upper end position of atress frame 303 of damper 307 upper end, when alignment jig 3 goes up in the spout of stabilizing frame 2, make the spare part that alignment jig 3 set up upwards move in step, until the top position of atress frame 303 is laminated with the top position of car position, simultaneously adjust the radian position of putting of atress frame 303 through alignment jig 3 and adaptation frame 301's rotation, be convenient for the laminating of atress frame 303 top position and car suitable position, when extension frame 302 and atress frame 303 carry out telescopic slip, the extension scope of atress frame 303 position can be adjusted, more adaptation atress frame 303 extends the laminating to the inboard position in car top, the atress position of increase atress frame 303.
When in use, the utility model is characterized in that: firstly, the device is assembled relatively by combining the embodiment, then the rear position of the fixing frame 1 is connected with the position of the car, the bottom position of the stabilizing frame 2 is jointed with the position below the interior of the car, the threaded column 201 is rotated subsequently, the adjusting frame 3 slides in the vertical direction in the sliding groove of the stabilizing frame 2 by matching the threaded column 201 with the threaded hole of the adjusting frame 3, when the adjusting frame 3 ascends in the sliding groove of the stabilizing frame 2, the parts arranged by the adjusting frame 3 synchronously move upwards until the top position of the stress frame 303 is jointed with the top position of the car, meanwhile, the radian placing position of the stress frame 303 is regulated by rotating the adjusting frame 3 and the adapting frame 301, so that the top position of the stress frame 303 is jointed with the proper position of the car, and when the extending frame 302 slides in a telescopic manner with the stress frame 303, the extending range of the position of the stress frame 303 can be regulated, and the stress area of the stress frame 303 can be further adapted to extend and joint towards the inner position of the top of the car.
After the position of the stress frame 303 is determined, the threaded column 201 is continuously rotated, so that the adjusting frame 3 moves upwards in the chute of the stabilizing frame 2, at this time, the top position of the stress frame 303 is attached to the position above the car, acting force is applied to the stress frame 303, and then the position of the stress frame 303 is limited, and the rotation amplitude of the adaptive frame 301 and the extension distance between the adaptive frame 301 and the extension frame 302 do not need to be independently fixed.
After the top position of the force-bearing frame 303 is forced and the car position is limited and fixed, the roller at the upper end of the supporting arm of the buffer 304 receives the downward acting force of the force-bearing frame 303, the supporting arm of the buffer 304 tilts, the top position of the damper 307 is attached to the upper position inside the car, and the acting force received by the buffer 304 is shared by the damper 307.
When the force-bearing frame 303 and the damper 307 are subjected to downward acting force, the downward acting force of the adjusting frame 3 is transmitted to the stabilizing frame 2 by combining the threaded column 201 and the threaded hole of the adjusting frame 3, so that the stabilizing frame 2 is pressed downwards, the bottom position of the connecting rod 105 is fixedly connected with the middle position of the rear end of the bottom of the stabilizing frame 2, the connecting rod 105 is driven to slide downwards in the fixing frame 1 when the stabilizing frame 2 is pressed downwards, the two short plates 102 are driven to move downwards when the connecting rod 105 slides downwards, the two long plates 103 are driven to rotate, the upper end position intervals of the two long plates 103 are far away, the dispersing plates 104 on the two upper ends of the two long plates 103 are respectively attached to the two inner side positions of the fixing frame 1, the downward acting force of the stabilizing frame 2 is converted into transverse acting force, and the downward acting force of the stabilizing frame 2 is mechanically commutated and dispersed, so that the overall stability of the stabilizing frame 2 is improved.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. An elevator car upright post with good stability is characterized by comprising a fixing frame (1); the inside intermediate position fixedly connected with vaulting pole (101) of mount (1), vaulting pole (101) are T shape design, the well below position of vaulting pole (101) rotates with the lower extreme position of two longplates (103) to be connected, the lower extreme position of two longplates (103) rotates to be connected, the intermediate position of two longplates (103) rotates with the lower extreme position of a shortcutting board (102) to be connected respectively, two shortcutting boards (102) are symmetrical design, the upper end position of two shortcutting boards (102) rotates to be connected, and the intermediate rotation hookup location in the middle of two shortcutting boards (102) upper end is connected with the upper end position rotation of connecting rod (105), the upper end position of two longcutting boards (103) is provided with dispersion board (104) respectively, two dispersion board (104) are symmetrical design, and two dispersion board (104) are located the inside both sides position of mount (1), the bottom position of connecting rod (105) is fixed connection with the intermediate position of the bottom rear end of stabilizing frame (2).
2. An elevator car column of good stability as defined in claim 1, wherein: the two long plates (103) are positioned in the inner position of the fixing frame (1), and the connecting rod (105) penetrates through the middle position of rotation of the two long plates (103).
3. An elevator car column of good stability as defined in claim 1, wherein: the novel stabilizing device is characterized in that a sliding groove is formed in the middle position of the front end of the stabilizing frame (2), a threaded column (201) is rotatably connected to the middle position of the inner portion of the stabilizing frame (2), an adjusting frame (3) is slidably connected to the sliding groove of the stabilizing frame (2), a threaded hole is formed in the middle position of the top of the adjusting frame (3), and the threaded hole of the adjusting frame (3) is rotationally connected with the threaded column (201).
4. An elevator car column of good stability as defined in claim 3, wherein: the left side position and the right side position of the adjusting frame (3) are respectively connected with an adaptive frame (301) in a rotating mode, the two adaptive frames (301) are symmetrically designed, the front end positions of the inner parts of the two adaptive frames (301) are respectively connected with an extending frame (302) in a sliding mode, and the two extending frames (302) are designed in an L shape.
5. An elevator car mast of good stability according to claim 4, wherein: the upper positions of the front ends of the two extending frames (302) are slidably connected with stress frames (303), springs are arranged at the middle lower positions of the two stress frames (303), and the upper end positions of the springs arranged on the stress frames (303) are attached to the upper end positions of the inside of the extending frames (302).
6. An elevator car mast of good stability according to claim 4, wherein: the front end internal position of two extension frames (302) all is provided with a buffer (304), and the rear end position elastic connection of buffer (304) has a support arm, and the upper end position of every buffer (304) support arm all is provided with the gyro wheel, and the gyro wheel of two buffer (304) backup pad upper ends all laminates with a atress frame (303) bottom position mutually.
7. An elevator car mast of good stability according to claim 4, wherein: the bottom positions of the two extension frames (302) are fixedly connected with a reversing frame (305), and two side positions of the front ends of the two reversing frames (305) are respectively and rotatably connected with an adjusting support plate (306).
8. An elevator car mast of good stability according to claim 7, wherein: and a damper (307) is arranged at the upper position of the front end of each adjusting support plate (306), the damper (307) is designed as a telescopic rod, a spring is sleeved at the middle position of the damper (307), and the upper end of the damper (307) is lower than the upper end of the stress frame (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310358679.0A CN116281520B (en) | 2023-04-06 | 2023-04-06 | Elevator car stand that stability is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310358679.0A CN116281520B (en) | 2023-04-06 | 2023-04-06 | Elevator car stand that stability is good |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116281520A true CN116281520A (en) | 2023-06-23 |
| CN116281520B CN116281520B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310358679.0A Active CN116281520B (en) | 2023-04-06 | 2023-04-06 | Elevator car stand that stability is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116281520B (en) |
Citations (9)
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|---|---|---|---|---|
| JP2013180868A (en) * | 2012-03-02 | 2013-09-12 | Hitachi Ltd | Space-saving elevator |
| FR3035094A1 (en) * | 2015-04-15 | 2016-10-21 | Outinord St Amand | CONSTRUCTION TOOLS FOR ELEVATOR CAGE. |
| CN210012463U (en) * | 2019-06-06 | 2020-02-04 | 成都南头科技有限公司 | Car frame stand welding piece with high stability |
| CN111017674A (en) * | 2019-12-18 | 2020-04-17 | 南京兆奎网络科技有限公司 | Elevator car with emergent function of preventing weighing down |
| CN211254898U (en) * | 2019-12-11 | 2020-08-14 | 四川科莱电梯股份有限公司 | Elevator for shallow pit |
| CN211687864U (en) * | 2019-11-29 | 2020-10-16 | 江苏天利电梯有限公司 | Buffer type elevator car |
| CN214614587U (en) * | 2021-05-06 | 2021-11-05 | 陕西火花钢结构有限公司 | A assembled steel construction strutting arrangement for building engineering |
| EP3943432A1 (en) * | 2020-07-23 | 2022-01-26 | Otis Elevator Company | Elevator car with foldable working platform |
| CN114799407A (en) * | 2022-03-29 | 2022-07-29 | 东台创跃机电有限公司 | Welding equipment for elevator car stand column for weld joint detection and assembly welding method thereof |
-
2023
- 2023-04-06 CN CN202310358679.0A patent/CN116281520B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013180868A (en) * | 2012-03-02 | 2013-09-12 | Hitachi Ltd | Space-saving elevator |
| FR3035094A1 (en) * | 2015-04-15 | 2016-10-21 | Outinord St Amand | CONSTRUCTION TOOLS FOR ELEVATOR CAGE. |
| CN210012463U (en) * | 2019-06-06 | 2020-02-04 | 成都南头科技有限公司 | Car frame stand welding piece with high stability |
| CN211687864U (en) * | 2019-11-29 | 2020-10-16 | 江苏天利电梯有限公司 | Buffer type elevator car |
| CN211254898U (en) * | 2019-12-11 | 2020-08-14 | 四川科莱电梯股份有限公司 | Elevator for shallow pit |
| CN111017674A (en) * | 2019-12-18 | 2020-04-17 | 南京兆奎网络科技有限公司 | Elevator car with emergent function of preventing weighing down |
| EP3943432A1 (en) * | 2020-07-23 | 2022-01-26 | Otis Elevator Company | Elevator car with foldable working platform |
| CN214614587U (en) * | 2021-05-06 | 2021-11-05 | 陕西火花钢结构有限公司 | A assembled steel construction strutting arrangement for building engineering |
| CN114799407A (en) * | 2022-03-29 | 2022-07-29 | 东台创跃机电有限公司 | Welding equipment for elevator car stand column for weld joint detection and assembly welding method thereof |
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| Publication number | Publication date |
|---|---|
| CN116281520B (en) | 2023-10-20 |
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