CN112141859A - Foldable car roof maintenance platform and using method thereof - Google Patents
Foldable car roof maintenance platform and using method thereof Download PDFInfo
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- CN112141859A CN112141859A CN202011166785.1A CN202011166785A CN112141859A CN 112141859 A CN112141859 A CN 112141859A CN 202011166785 A CN202011166785 A CN 202011166785A CN 112141859 A CN112141859 A CN 112141859A
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- supporting
- support
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- bearing beam
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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
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
- B66B11/0246—Maintenance features
-
- 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
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a foldable car roof maintenance platform and a using method thereof. According to the elevator maintenance platform, the plurality of groups of supporting structures are arranged on the bearing beam in advance, so that the supporting plates can be folded and unfolded, when the elevator maintenance platform is not used, the supporting plates can be folded, the use of the elevator cannot be influenced, when the maintenance platform needs to be maintained, the supporting plates can be unfolded, more spaces capable of standing are provided for maintenance personnel, the maintenance operation of the maintenance personnel is facilitated, and the potential safety hazard caused by insufficient standing space during maintenance is solved.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a foldable car roof maintenance platform and a using method thereof.
Background
At present, a car elevator is a device for vertically carrying a human body or an object, and the car elevator needs to be overhauled after running for a period of time or when a fault occurs. However, under the condition that the depth of some well ways is too small or the plane of the car roof cannot bear the force, for example, the car roof is made of sightseeing glass, the car roof is not provided with a corresponding structure for a maintainer to stand, so that the maintainer can only stand on the upper cross beam, the standing area of the upper cross beam is small, and potential safety hazards exist during maintenance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a foldable car roof maintenance platform and a using method thereof, and solves the problems that in the prior art, as no corresponding structure is provided for maintenance personnel to stand, the maintenance personnel can only stand on an upper cross beam with a small area for maintenance, and potential safety hazards exist.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a sedan-chair top that can fold up overhauls platform, includes two parallel arrangement's spandrel girder, and the both ends of two spandrel girders are fixed continuous with the relative both sides at elevator well top, and one side that two spandrel girders deviate from each other is seted up a storage tank that runs through its both ends respectively along its length direction. One side that deviates from mutually at two spandrel girders is equipped with a backup pad respectively, one side of backup pad is passed through the hinge and is rotated with the spandrel girder and link to each other, and the backup pad can rotate to vertical state downwards around the pivot of hinge at least. The length direction of the supporting plate is consistent with that of the bearing beam, and gaps are formed between the two ends of the supporting plate and the side wall of the elevator shaft.
The bearing beam comprises a bearing beam body, wherein the bearing beam body is provided with a containing groove, the containing groove is internally provided with at least one group of supporting structures, each supporting structure comprises a first supporting member and a second supporting member, the bottom of the containing groove is provided with a first rotating pair, and one end of each first supporting member is rotatably connected with the bearing beam body through the first rotating pair; the other end of the first supporting member is provided with a rotating shaft and is rotatably connected with one end of the second supporting member through the rotating shaft. And a second revolute pair is arranged on the lower side of one side, far away from the bearing beam, of the support plate, and the other end of the second support member is rotatably connected with the support plate through the second revolute pair.
The second support component is also sleeved with a sleeve, and when the first support component and the second support component are positioned on the same straight line, the sleeve can slide along the length direction of the first support component and the second support component and can be positioned at the connecting position of the first support component and the second support component.
The connecting piece is fixedly connected with the sleeve, the length direction of the connecting piece is consistent with that of the bearing beam, and two ends of the connecting piece extend into gaps between two ends of the supporting plate and the side wall of the elevator shaft respectively.
In the initial state, the supporting plate is in a vertical state or an inclined state, and one side of the supporting plate, which is far away from the connecting position of the supporting plate and the bearing beam, is close to the lower side of the bearing beam.
When the supporting plate is unfolded and upwards rotated by external force, the first supporting component rotates through the first revolute pair, the second supporting component rotates through the rotary shaft and the second revolute pair, so that the first supporting component and the second supporting component form a straight line, the supporting plate is unfolded to be in a horizontal state, and meanwhile, the sleeve slides along the first supporting component and the second supporting component and is positioned at the joint of the first supporting component and the second supporting component, so that the rigidity and the supporting strength of the first supporting component and the second supporting component are ensured
When the folding elevator is folded, the connecting piece is operated through a gap between the support plate and the side wall of the elevator shaft, the sleeve is driven by the connecting piece to slide to the second support member, the rotating shaft is exposed, and then the support plate is pressed down, so that the support plate rotates downwards around the hinge rotating shaft to return to the initial state.
Preferably, the elevator car further comprises a connecting plate, the connecting plate is laid above the two bearing beams, and two ends of the connecting plate respectively extend to the side walls close to the elevator shaft. The lower surface of the connecting plate is fixedly connected with the upper side surfaces of the two bearing beams, and the two opposite sides of the connecting plate at least extend to the side flush with the two bearing beams. The supporting plates are located on two sides of the connecting plate, and one side of the supporting plate is connected with the connecting plate through hinges in a rotating mode.
Preferably, a connecting spring is further sleeved on the outer side of the second support member, one end of the connecting spring is fixedly connected with the second revolute pair, and the other end of the connecting spring is fixedly connected with one end of the sleeve close to the second revolute pair.
Preferably, the elevator shaft fixing device further comprises two fixing plates, the two fixing plates are located at two ends of the bearing beam along the length direction of the bearing beam and fixedly connected with a guardrail in an elevator shaft, one side, facing the bearing beam, of each fixing plate is provided with an unfolding positioning point and a folding positioning point respectively, the two ends of each unfolding positioning point, the two ends of each folding positioning point and the two ends of each connecting piece are provided with matched locking parts, and one end of each connecting piece is fixedly connected with the corresponding fixing plate through the corresponding locking part.
Preferably, the length of the sleeve is greater than the length of the first support member and less than the length of the second support member.
Preferably, the side walls of the accommodating groove notch are bent in opposite directions to form an upper edge and a lower edge.
The invention discloses a use method of a foldable car top maintenance platform, which comprises the following steps:
in the initial state, the supporting plate is in a vertical state or an inclined state, one side, far away from the connecting position of the supporting plate and the bearing beam, of the supporting plate is close to the lower side of the bearing beam, and the first supporting member is located in the accommodating groove;
when the maintenance is needed, when the supporting plate is rotated upwards by external force, the first supporting component rotates through the first rotating pair, the second supporting component rotates through the rotating shaft and the second rotating pair, so that the first supporting component and the second supporting component form a straight line, the supporting plate is unfolded to be in a horizontal state, meanwhile, the sleeve slides along the first supporting component and the second supporting component and is positioned at the connecting position of the first supporting component and the second supporting component, the first supporting component and the second supporting component are prevented from rotating through the rotating shaft, the rigidity and the supporting strength of the first supporting component and the second supporting component are ensured, at the moment, the maintenance platform is in an unfolded state, and an operator can perform maintenance operation on the supporting plate;
when the folding elevator is folded, the connecting piece is operated through a gap between the support plate and the side wall of the elevator shaft, the sleeve is driven by the connecting piece to slide to the second support member, the rotating shaft is exposed, and then the support plate is pressed down, so that the support plate rotates downwards around the hinge rotating shaft to return to the initial state.
Compared with the prior art, the invention has the following beneficial effects:
according to the elevator maintenance platform, the plurality of groups of supporting structures are arranged on the bearing beam in advance, so that the supporting plates can be folded and unfolded, when the elevator maintenance platform is not used, the supporting plates can be folded, the use of the elevator cannot be influenced, when the maintenance platform needs to be maintained, the supporting plates can be unfolded, more spaces capable of standing are provided for maintenance personnel, the maintenance operation of the maintenance personnel is facilitated, and the potential safety hazard is solved.
Drawings
Fig. 1 is a schematic structural view of a retractable car top maintenance platform in the initial stage.
Fig. 2 is a schematic structural view of the foldable car top maintenance platform when unfolded.
FIG. 3 is a schematic view of the initial configuration of the ceiling maintenance platform with the attachment plates and attachment springs.
Figure 4 is a schematic structural view of the car top maintenance platform with the connecting plates and the connecting springs when unfolded.
Fig. 5 is a schematic structural view of a foldable car top maintenance platform installed on a guardrail of an elevator shaft.
Figure 6 is a schematic structural view of the retractable car top maintenance platform with the support plates removed when the platform is unfolded.
In the figure: the bearing beam comprises a bearing beam 1, an accommodating groove 2, a connecting plate 3, a supporting plate 4, a first supporting member 5, a second supporting member 6, a first rotating pair 7, a rotating shaft 8, a second rotating pair 9, a sleeve 10, a connecting spring 11, a fixing plate 12, a guardrail 13, a connecting piece 14, an upper edge 15 and a lower edge 16.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
Foldable car roof maintenance platform
Referring to fig. 1-2 and 6, the car top maintenance platform comprises two bearing beams 1 which are arranged in parallel, two ends of the two bearing beams are fixedly connected with two opposite sides of the top of the elevator shaft, and one side, which deviates from each other, of the two bearing beams is provided with a containing groove 2 which runs through the two ends of the two bearing beams along the length direction of the two bearing beams. One side that deviates from mutually at two spandrel girders is equipped with a backup pad 4 respectively, one side of backup pad is passed through the hinge and is rotated with the spandrel girder and link to each other, and the backup pad can rotate to vertical state downwards around the pivot of hinge at least. The length direction of the supporting plate is the same as that of the bearing beam, and gaps are formed between the two ends of the supporting plate and the side wall of the elevator shaft.
The bearing beam comprises a bearing beam and is characterized in that at least one group of supporting structures are further arranged in the accommodating groove of the bearing beam, a plurality of groups of supporting structures can be arranged in practical use, each supporting structure comprises a first supporting member 5 and a second supporting member 6, a first rotating pair 7 is arranged at the bottom of the accommodating groove, and one end of each first supporting member is rotatably connected with the bearing beam through the corresponding first rotating pair. The other end of the first support member is provided with a rotating shaft 8 and is rotatably connected with one end of the second support member through the rotating shaft. And a second revolute pair 9 is arranged on the lower side of one side, far away from the bearing beam, of the support plate, and the other end of the second support member is rotatably connected with the support plate through the second revolute pair.
The second supporting member is also sleeved with a sleeve 10, and when the first supporting member and the second supporting member are positioned on the same straight line, the sleeve can slide along the length direction of the first supporting member and the second supporting member and can be positioned at the connecting position of the first supporting member and the second supporting member. And the elevator hoistway connecting structure further comprises a connecting piece 14, wherein the connecting piece is fixedly connected with the sleeve, the length direction of the connecting piece is consistent with that of the bearing beam, and two ends of the connecting piece respectively extend into gaps between two ends of the supporting plate and the side wall of the elevator hoistway. When the maintenance platform is actually used, an operator can use tools such as a long hook to extend into a gap between the support plate and the side wall of the elevator shaft to pull the connecting piece, so that the connecting piece drives the sleeve to move, and the maintenance platform is folded; meanwhile, an operator can also stretch into the gap by using tools such as a long hook and the like, and the supporting plate is pulled to rotate upwards, so that the maintenance platform is unfolded.
In an initial state, referring to fig. 1, the supporting plate is in a vertical state or an inclined state, and a side of the supporting plate away from a connection between the supporting plate and the bearing beam is close to a lower side of the bearing beam, at this time, the first supporting member is located in the accommodating groove.
Referring to fig. 2 and 6, when the support plate is unfolded, when the support plate is rotated upward by an external force, the first support member is rotated by the first revolute pair, and the second support member is rotated by the rotary shaft and the second revolute pair, so that the first support member and the second support member form a straight line, the support plate is unfolded to a horizontal state, and the best state is that the support plate and the upper side of the load-bearing beam connected with the support plate are positioned on the same horizontal plane, and meanwhile, the sleeve slides along the first support member and the second support member and is positioned at the joint of the first support member and the second support member, so that the rigidity and the support strength of the first support member and the second support member are ensured.
When folding up, operate the connecting piece through the clearance between backup pad and the elevator well lateral wall, drive the sleeve pipe through the connecting piece and slide to the second supporting member on, and will the pivot exposes, and first supporting member gets into in the storage tank through pivot and first revolute pair rotation back, and the second supporting member rotates through pivot and second revolute pair, then pushes down the backup pad, makes the backup pad wind hinge pivot downwardly rotating to replying initial condition, just makes the backup pad keep away from its and the bearing beam junction one side be close to the downside of this bearing beam, and the backup pad gets back to vertical state or tilt state.
In one embodiment, referring to fig. 3-4, the elevator system further comprises a connecting plate 3 laid above the two load-bearing beams, and two ends of the connecting plate extend to the side walls of the elevator shaft respectively. The lower surface of the connecting plate is fixedly connected with the upper side surfaces of the two bearing beams, and the two opposite sides of the connecting plate at least extend to the side flush with the two bearing beams or protrude from the side of the two bearing beams. The supporting plates are located on two sides of the connecting plate, and one side of the supporting plate is connected with the connecting plate through hinges in a rotating mode.
In an embodiment, referring to fig. 3 to 4, a connecting spring 11 is further sleeved outside the second support member, one end of the connecting spring is fixedly connected with the second revolute pair, and the other end of the connecting spring is fixedly connected with one end of the sleeve close to the second revolute pair, wherein when the connecting spring is compressed, the sleeve is pulled back in a direction close to the second revolute pair, the sleeve is located outside the second support member, and the rotating shaft is exposed, so that the second support member and the first support member can rotate through the rotating shaft; when the connecting spring is extended, the sleeve is pushed in the direction away from the second revolute pair, and the sleeve is positioned at the joint of the first supporting member and the second supporting member to prevent the first supporting member and the second supporting member from rotating through the rotating shaft.
In one embodiment, the length of the sleeve is greater than the length of the first support member and less than the length of the second support member. When the first support member and the second support member form a straight line, the sleeve can be positioned along the first support member and the second support member and at the joint of the first support member and the second support member, so that the first support member and the second support member are prevented from rotating through the rotating shaft; when the sleeve slides upwards along the length direction of the second supporting member, the sleeve is positioned on the outer side of the second supporting member and the rotating shaft is exposed, so that the first supporting member and the second supporting member can rotate through the rotating shaft.
In one embodiment, referring to fig. 5, the elevator car further comprises two fixing plates 12, the two fixing plates are located at two ends of the bearing beam along the length direction of the bearing beam and are fixedly connected with a guardrail 13 in an elevator shaft, one side of each fixing plate facing the bearing beam is provided with an unfolding positioning point and a folding positioning point, the two ends of each unfolding positioning point, the two ends of each folding positioning point and the two ends of each connecting piece are provided with matched locking parts, and one end of each connecting piece is fixedly connected with the fixing plate through the locking parts.
In one embodiment, the side walls of the receiving slot opening are bent in opposite directions to form an upper edge 15 and a lower edge 16.
The invention relates to a use method of a foldable car roof maintenance platform, which comprises the following steps:
in the initial state, the supporting plate is in a vertical state or an inclined state, one side, far away from the connecting position of the supporting plate and the bearing beam, of the supporting plate is close to the lower side of the bearing beam, and the first supporting member is located in the accommodating groove;
when the elevator needs to be overhauled, an operator upwards rotates the supporting plate through external force by means of an external tool, the first supporting component rotates through the first rotating pair, the second supporting component rotates through the rotating shaft and the second rotating pair, the first supporting component and the second supporting component form a straight line, and the supporting plate is unfolded to be in a horizontal state.
When the maintenance is completed, when the maintenance platform is folded, an operator operates the connecting piece through a gap between the support plate and the side wall of the elevator hoistway, the connecting piece drives the sleeve to slide to the second support member, the rotating shaft is exposed, the first support member enters the accommodating groove after rotating through the rotating shaft and the first rotating pair, the second support member rotates through the rotating shaft and the second rotating pair, then the support plate is pressed downwards, the support plate is rotated downwards around the hinge rotating shaft to return to the initial state, at the moment, one side, far away from the joint of the support plate and the bearing beam, of the support plate is close to the lower side of the bearing beam, and the support plate returns to the vertical state or the inclined state, at the moment, the maintenance platform returns to the initial.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (7)
1. A foldable car roof maintenance platform comprises two bearing beams (1) which are arranged in parallel, wherein two ends of the two bearing beams are fixedly connected with two opposite sides of the top of an elevator shaft, and the foldable car roof maintenance platform is characterized in that one side, which deviates from each other, of the two bearing beams is respectively provided with a containing groove (2) which penetrates through the two ends of the two bearing beams along the length direction of the two bearing beams; one sides of the two bearing beams, which are far away from each other, are respectively provided with a supporting plate (4), one sides of the supporting plates are rotatably connected with the bearing beams through hinges, and the supporting plates can at least downwards rotate around the rotating shafts of the hinges to be in a vertical state; the length direction of the supporting plate is consistent with that of the bearing beam, and gaps are formed between the two ends of the supporting plate and the side wall of the elevator hoistway;
at least one group of support structures are further arranged in the accommodating groove of the bearing beam, each support structure comprises a first support member (5) and a second support member (6), a first rotating pair (7) is arranged at the bottom of the accommodating groove, and one end of each first support member is rotatably connected with the bearing beam through the corresponding first rotating pair; the other end of the first supporting component is provided with a rotating shaft (8) and is rotationally connected with one end of the second supporting component through the rotating shaft; a second revolute pair (9) is arranged on the lower side of one side, far away from the bearing beam, of the supporting plate, and the other end of the second supporting member is rotatably connected with the supporting plate through the second revolute pair;
the second supporting component is also sleeved with a sleeve (10), and when the first supporting component and the second supporting component are positioned on the same straight line, the sleeve can slide along the length direction of the first supporting component and the second supporting component and can be positioned at the connecting position of the first supporting component and the second supporting component;
the connecting piece (14) is fixedly connected with the sleeve, the length direction of the connecting piece is consistent with that of the bearing beam, and two ends of the connecting piece respectively extend into a gap between two ends of the supporting plate and the side wall of the elevator shaft;
in an initial state, the supporting plate is in a vertical state or an inclined state, and one side of the supporting plate, which is far away from the connecting part of the supporting plate and the bearing beam, is close to the lower side of the bearing beam;
when the support plate is unfolded and rotated upwards by external force, the first support component rotates through the first revolute pair, the second support component rotates through the rotary shaft and the second revolute pair, so that the first support component and the second support component form a straight line, the support plate is unfolded to be in a horizontal state, and meanwhile, the sleeve slides along the first support component and the second support component and is positioned at the joint of the first support component and the second support component, so that the rigidity and the support strength of the first support component and the second support component are ensured;
when the folding elevator is folded, the connecting piece is operated through a gap between the support plate and the side wall of the elevator shaft, the sleeve is driven by the connecting piece to slide to the second support member, the rotating shaft is exposed, and then the support plate is pressed down, so that the support plate rotates downwards around the hinge rotating shaft to return to the initial state.
2. A collapsible ceiling service platform according to claim 1, further comprising a connecting plate (3) laid over the two beams, the connecting plate having ends extending to adjacent the side walls of the hoistway; the lower surface of the connecting plate is fixedly connected with the upper side surfaces of the two bearing beams, and the two opposite sides of the connecting plate at least extend to be flush with the side deviated from the two bearing beams; the supporting plates are located on two sides of the connecting plate, and one side of the supporting plate is connected with the connecting plate through hinges in a rotating mode.
3. A collapsible ceiling inspection platform as defined in claim 1 wherein a connecting spring (11) is further sleeved outside said second support member, one end of said connecting spring is fixedly connected to said second revolute pair, and the other end of said connecting spring is fixedly connected to the end of said sleeve adjacent to said second revolute pair.
4. A collapsible ceiling inspection platform according to claim 1, further comprising two fixing plates (12) located at both ends of the load-bearing beam along its length direction and fixedly connected to a guardrail (13) in the elevator hoistway, wherein an unfolding positioning point and a folding positioning point are respectively provided at one side of the fixing plates facing the load-bearing beam, the two ends of the unfolding positioning point, the folding positioning point and the connecting member are provided with locking members, and one end of the connecting member is fixedly connected to the fixing plates through the locking members.
5. A collapsible ceiling service platform in accordance with claim 1, wherein the length of said sleeve is greater than the length of the first support member and less than the length of the second support member.
6. A collapsible ceiling service platform as claimed in claim 1, wherein the side walls of the tank slot are bent in opposite directions to form an upper edge (15) and a lower edge (16).
7. A use method of a foldable car roof maintenance platform is characterized in that the use method of the foldable car roof maintenance platform according to any one of claims 1 to 6 comprises the following steps:
in an initial state, the supporting plate is in a vertical state or an inclined state, and one side of the supporting plate, which is far away from the connecting part of the supporting plate and the bearing beam, is close to the lower side of the bearing beam;
when the maintenance is needed, when the supporting plate is rotated upwards by external force, the first supporting component rotates through the first rotating pair, the second supporting component rotates through the rotating shaft and the second rotating pair, so that the first supporting component and the second supporting component form a straight line, the supporting plate is unfolded to be in a horizontal state, meanwhile, the sleeve slides along the first supporting component and the second supporting component and is positioned at the connecting position of the first supporting component and the second supporting component, the rigidity and the supporting strength of the first supporting component and the second supporting component are ensured, and an operator can perform maintenance operation on the supporting plate;
when the folding elevator is folded, the connecting piece is operated through a gap between the support plate and the side wall of the elevator shaft, the sleeve is driven by the connecting piece to slide to the second support member, the rotating shaft is exposed, and then the support plate is pressed down, so that the support plate rotates downwards around the hinge rotating shaft to return to the initial state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166785.1A CN112141859B (en) | 2020-10-27 | 2020-10-27 | Foldable car roof maintenance platform and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166785.1A CN112141859B (en) | 2020-10-27 | 2020-10-27 | Foldable car roof maintenance platform and use method thereof |
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| Publication Number | Publication Date |
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| CN112141859A true CN112141859A (en) | 2020-12-29 |
| CN112141859B CN112141859B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011166785.1A Active CN112141859B (en) | 2020-10-27 | 2020-10-27 | Foldable car roof maintenance platform and use method thereof |
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| CN101066733A (en) * | 2006-12-13 | 2007-11-07 | 上海永大电梯设备有限公司 | Foldable overhaul platform |
| CN204643417U (en) * | 2015-04-27 | 2015-09-16 | 巨立电梯股份有限公司 | A kind of overhauling elevator device |
| CN105480802A (en) * | 2016-01-20 | 2016-04-13 | 江南嘉捷电梯股份有限公司 | Machine-room-free elevator overhauling platform |
| CN208008232U (en) * | 2017-12-29 | 2018-10-26 | 苏州江南嘉捷电梯有限公司 | A kind of machine-roomless lift top layer maintenance cat ladder |
| CN209536724U (en) * | 2019-01-29 | 2019-10-25 | 北京瑛达源电梯有限公司 | A kind of overhauling elevator platform |
| CN211169380U (en) * | 2019-09-03 | 2020-08-04 | 珠江富士电梯（中国）有限公司 | Car top guardrail with maintenance platform |
| CN111747257A (en) * | 2020-07-20 | 2020-10-09 | 中山市鑫海精密制造科技有限公司 | Safety maintenance guardrail and bbservation elevator that bbservation elevator used |
| CN213356615U (en) * | 2020-10-27 | 2021-06-04 | 重庆迈高电梯有限公司 | Foldable car roof maintenance platform |
-
2020
- 2020-10-27 CN CN202011166785.1A patent/CN112141859B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066733A (en) * | 2006-12-13 | 2007-11-07 | 上海永大电梯设备有限公司 | Foldable overhaul platform |
| CN204643417U (en) * | 2015-04-27 | 2015-09-16 | 巨立电梯股份有限公司 | A kind of overhauling elevator device |
| CN105480802A (en) * | 2016-01-20 | 2016-04-13 | 江南嘉捷电梯股份有限公司 | Machine-room-free elevator overhauling platform |
| CN208008232U (en) * | 2017-12-29 | 2018-10-26 | 苏州江南嘉捷电梯有限公司 | A kind of machine-roomless lift top layer maintenance cat ladder |
| CN209536724U (en) * | 2019-01-29 | 2019-10-25 | 北京瑛达源电梯有限公司 | A kind of overhauling elevator platform |
| CN211169380U (en) * | 2019-09-03 | 2020-08-04 | 珠江富士电梯（中国）有限公司 | Car top guardrail with maintenance platform |
| CN111747257A (en) * | 2020-07-20 | 2020-10-09 | 中山市鑫海精密制造科技有限公司 | Safety maintenance guardrail and bbservation elevator that bbservation elevator used |
| CN213356615U (en) * | 2020-10-27 | 2021-06-04 | 重庆迈高电梯有限公司 | Foldable car roof maintenance platform |
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| Publication number | Publication date |
|---|---|
| CN112141859B (en) | 2023-08-25 |
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