CN112141859B - Foldable car roof maintenance platform and use method thereof - Google Patents
Foldable car roof maintenance platform and use method thereof Download PDFInfo
- Publication number
- CN112141859B CN112141859B CN202011166785.1A CN202011166785A CN112141859B CN 112141859 B CN112141859 B CN 112141859B CN 202011166785 A CN202011166785 A CN 202011166785A CN 112141859 B CN112141859 B CN 112141859B
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- supporting
- support member
- supporting plate
- plate
- support
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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)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a foldable car roof maintenance platform and a use method thereof. According to the invention, the supporting plates are folded and unfolded by arranging the multiple groups of supporting structures on the spandrel girder in advance, so that when the elevator is not in use, the supporting plates can be folded and can not influence the use of the elevator, when the elevator needs to be overhauled, the supporting plates can be unfolded, more space capable of standing is provided for overhauling staff, the overhauling staff can conveniently carry out overhauling operation, and the potential safety hazard caused by insufficient standing space during overhauling is solved.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a foldable car roof overhaul platform and a use method thereof.
Background
Currently, a car elevator is a device for vertically carrying a human body or an object, and after a certain period of time of operation or when a malfunction occurs, the car elevator needs to be overhauled. However, for the situation that the depth of some shafts is too small or the plane of the car roof cannot be stressed, for example, the car roof is made of sightseeing glass and the like, the car roof has no corresponding structure for maintenance personnel to stand, so that the maintenance personnel can only stand on the upper cross beam, the area of the upper cross beam which can stand is small, and potential safety hazards exist when maintenance is carried out.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a foldable car roof maintenance platform and a use method thereof, so as to solve the problem that in the prior art, maintenance staff can only stand on an upper beam with a small area for maintenance due to the fact that the car roof has no corresponding structure for the maintenance staff to stand, and potential safety hazards exist.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a car roof maintenance platform that can fold up, includes two parallel arrangement's spandrel girder, and two spandrel girder's both ends link to each other with the fixed relative both sides at elevator well top, and two spandrel girder deviate from each other one side has offered a holding groove that runs through its both ends along its length direction respectively. One side that deviates from at two spandrel girders is equipped with a backup pad respectively, one side of backup pad links to each other through hinge and spandrel girder rotation, 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 the length direction of the spandrel girder, and gaps are reserved between the two ends of the supporting plate and the side wall of the elevator shaft.
At least one group of support structures are arranged in the accommodating groove of the spandrel girder, each support structure comprises a first support member and a second support member, a first rotating pair is arranged at the bottom of the accommodating groove, and one end of each first support member is rotationally connected with the spandrel girder through the corresponding 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. The support plate is far away from the downside of spandrel girder one side is equipped with the second revolute pair, and the other end of second support member passes through the second revolute pair and rotates with the backup pad and link to each other.
The second supporting member is further sleeved with a sleeve, 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 joint of the first supporting member and the second supporting member.
The bearing beam also comprises a connecting piece which is fixedly connected with the sleeve, the length direction of the connecting piece is consistent with the length direction of the bearing beam, and the two ends of the connecting piece extend into gaps between the 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 joint of the supporting plate and the spandrel girder, is close to the lower side of the spandrel girder.
When the support plate is unfolded, the first support member rotates through the first rotating pair, and the second support member rotates through the rotating shaft and the second rotating pair, so that the first support member and the second support member form a straight line, the support plate is unfolded to be in a horizontal state, 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 the elevator shaft is folded, the connecting piece is operated through a gap between the supporting plate and the side wall of the elevator shaft, the sleeve is driven to slide onto the second supporting member through the connecting piece, the rotating shaft is exposed, and then the supporting plate is pressed down, so that the supporting plate rotates downwards around the hinge rotating shaft to return to an initial state.
Preferably, the elevator further comprises a connecting plate which is laid above the two spandrel girders, and both ends of the connecting plate extend to the side walls close to the elevator shaft, respectively. The lower surface of connecting plate links to each other with the upside surface mounting of two spandrel girders simultaneously, and the relative both sides of connecting plate extend to the one side parallel and level that deviates from mutually with two spandrel girders at least. The backup pad is located the both sides of this connecting plate, and one side of backup pad links to each other with the connecting plate through the hinge rotation.
Preferably, a connecting spring is sleeved outside the second supporting 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 comprises a supporting beam, a guardrail in an elevator shaft, a fixing plate, a locking plate, a connecting piece, a locking component and a locking component, wherein the supporting beam is arranged at the two ends of the supporting beam along the length direction of the supporting beam, the fixing plate is fixedly connected with the guardrail in the elevator shaft, one side of the fixing plate, which faces the supporting beam, is respectively provided with an unfolding locating point and a folding locating point, the two ends of the unfolding locating point, the folding locating point and the connecting piece are respectively provided with the locking component matched with each other, and one end of the connecting piece is fixedly connected with the fixing plate through the locking component.
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 opening are bent towards opposite directions to form an upper edge and a lower edge.
The application method of the foldable car top maintenance platform comprises the following steps of:
in the initial state, the supporting plate is in a vertical state or an inclined state, one side of the supporting plate, which is far away from the joint of the supporting plate and the spandrel girder, is close to the lower side of the spandrel girder, and the first supporting member is positioned in the accommodating groove;
when the support plate is required to be overhauled, the first support member rotates through the first rotating pair, the second support member rotates through the rotating shaft and the second rotating pair, so that the first support member and the second support member form a straight line, the support plate is unfolded to be in a horizontal state, 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, the first support member and the second support member are prevented from rotating through the rotating shaft, the rigidity and the support strength of the first support member and the second support member are ensured, at the moment, the overhauling platform is in an unfolded state, and an operator can overhaul the support plate;
when the elevator shaft is folded, the connecting piece is operated through a gap between the supporting plate and the side wall of the elevator shaft, the sleeve is driven to slide onto the second supporting member through the connecting piece, the rotating shaft is exposed, and then the supporting plate is pressed down, so that the supporting plate rotates downwards around the hinge rotating shaft to return to an initial state.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the supporting plates are folded and unfolded by arranging the multiple groups of supporting structures on the spandrel girder in advance, so that when the elevator is not used, the supporting plates can be folded and can not influence the use of the elevator, and when the elevator needs to be overhauled, the supporting plates can be unfolded, so that more space capable of standing is provided for overhauling staff, the overhauling staff can conveniently carry out overhauling operation, and the existing potential safety hazard is solved.
Drawings
Fig. 1 is a schematic structural view of a foldable car roof maintenance platform according to the present invention when unfolded.
Fig. 2 is a schematic structural diagram of a foldable car roof maintenance platform in the initial stage of the present invention.
Fig. 3 is a schematic structural view of a car roof maintenance platform with a connection plate and a connection spring when unfolded.
Fig. 4 is a schematic view of the structure of the car roof maintenance platform provided with the connecting plate and the connecting spring at the beginning.
Fig. 5 is a schematic view of a collapsible car roof service platform of the present invention mounted on a hoistway barrier.
Fig. 6 is a schematic structural view of the collapsible roof service platform when extended with the support plate removed.
In the figure: the bearing beam 1, the accommodating groove 2, the connecting plate 3, the supporting plate 4, the first supporting member 5, the second supporting member 6, the first rotating pair 7, the rotating shaft 8, the second rotating pair 9, the sleeve 10, the connecting spring 11, the fixing plate 12, the guardrail 13, the connecting piece 14, the upper edge 15 and the lower edge 16.
Description of the embodiments
The invention will be further described with reference to the drawings and examples.
1. Foldable car roof overhauling platform
Referring to fig. 1-2 and 6, the car roof maintenance platform comprises two parallel bearing beams 1, two ends of the two bearing beams are fixedly connected with two opposite sides of the top of the elevator shaft, and one sides, deviating from each other, of the two bearing beams are respectively provided with a containing groove 2 penetrating through two ends of the two bearing beams along the length direction of the two sides. One side that deviates from at two spandrel girder is equipped with a backup pad 4 respectively, one side of backup pad links to each other through hinge and spandrel girder rotation, and the backup pad can rotate to vertical state downwards around the pivot of hinge at least. The length direction of the supporting plate and the length direction of the spandrel girder are always, and gaps are reserved between the two ends of the supporting plate and the side wall of the elevator shaft.
At least one group of supporting structures are further arranged in the accommodating groove of the spandrel girder, multiple groups of supporting structures can be arranged in actual 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 rotationally connected with the spandrel girder 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. The lower side of the supporting plate, which is far away from one side of the spandrel girder, is provided with a second revolute pair 9, and the other end of the second supporting member is rotationally connected with the supporting plate through the second revolute pair.
The second support member is further sleeved with a sleeve 10, and when the first support member and the second support member are positioned on the same straight line, the sleeve can slide along the length direction of the first support member and the second support member and can be positioned at the joint of the first support member and the second support member. And a connecting piece 14 fixedly connected with the sleeve, wherein the length direction of the connecting piece is consistent with that of the spandrel girder, 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. When in actual use, an operator can stretch into a gap between the supporting plate and the side wall of the elevator shaft by using tools such as long hooks and the like to pull the connecting piece, so that the connecting piece drives the sleeve to move, and the overhaul platform is folded; meanwhile, operators can also stretch into the gap by using tools such as long hooks and the like to pull the supporting plate to rotate upwards, so that the maintenance platform is unfolded.
In the initial state, referring to fig. 1, the support plate is in a vertical state or an inclined state, and a side of the support plate, which is far away from the connection point of the support plate and the spandrel girder, is close to the lower side of the spandrel girder, and at this time, the first support member is positioned in the accommodating groove.
Referring to fig. 2 and 6, when the support plate is unfolded, the first support member is rotated by the first rotating pair, and the second support member is rotated by the rotating shaft and the second rotating pair, so that the first support member and the second support member form a straight line, the support plate is unfolded to be in a horizontal state, and the best state is that the upper sides of the support beams 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, through the clearance operation connecting piece between backup pad and the elevator well lateral wall, drive the sleeve pipe through the connecting piece and slide to on the second support component, and will the pivot exposes, first support component passes through in pivot and the first revolute pair rotates the back gets into the holding groove, the second support component passes through pivot and the rotation of second revolute pair, then push down the backup pad, make the backup pad rotate downwards around the hinge pivot and restore initial condition, namely make the backup pad keep away from its one side of being close to the downside of this spandrel girder with spandrel girder junction, and the backup pad returns to vertical state or incline state.
In one embodiment, see fig. 3-4, a connection plate 3 is further comprised, which is laid over the two load beams, the two ends of the connection plate extending to the side wall close to the elevator shaft, respectively. The lower surface of connecting plate links to each other with the upside fixed surface of two spandrel girders simultaneously, and the relative both sides of connecting plate extend to the one side parallel and level that deviates from mutually with two spandrel girders at least, perhaps protrude in the one side that deviates from mutually with two spandrel girders. The backup pad is located the both sides of this connecting plate, and one side of backup pad links to each other with the connecting plate through the hinge rotation.
In one embodiment, referring to fig. 3 to 4, a connecting spring 11 is further sleeved on the outer side of the second supporting 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 along the direction close to the second revolute pair, the sleeve is positioned on the outer side of the second supporting member, and the rotating shaft is exposed, so that the second supporting member and the first supporting member can rotate through the rotating shaft; when the connecting spring stretches, the sleeve is pushed in a 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 and is prevented 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 supporting member and the second supporting member form a straight line, the sleeve can be positioned at the joint of the first supporting member and the second supporting member along the first supporting member and the second supporting member, so that the first supporting member and the second supporting 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 exposes the rotating shaft, 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 further comprises two fixing plates 12, the two fixing plates are located at two ends of the spandrel girder along the length direction of the spandrel girder and fixedly connected with a guardrail 13 in an elevator hoistway, an unfolding locating point and a folding locating point are respectively arranged at one side of the fixing plates facing the spandrel girder, matched locking parts are respectively arranged at two ends of the unfolding locating point, the folding locating point and a connecting piece, and one end of the connecting piece is fixedly connected with the fixing plates through the locking parts.
In one embodiment, the side walls of the receiving groove are bent in opposite directions to form an upper edge 15 and a lower edge 16.
2. The application method of the foldable car top maintenance platform comprises the following steps of:
in the initial state, the supporting plate is in a vertical state or an inclined state, one side of the supporting plate, which is far away from the joint of the supporting plate and the spandrel girder, is close to the lower side of the spandrel girder, and the first supporting member is positioned in the accommodating groove;
when the elevator needs to be overhauled, an operator upwards rotates the supporting plate by means of external force through an external tool, the first supporting member rotates through the first rotating pair, the second supporting member rotates through the rotating shaft and the second rotating pair, the first supporting member and the second supporting member form a straight line, the supporting plate is unfolded to be in a horizontal state, wherein the upper sides of the supporting beams connected with the supporting plate are preferably located on the same horizontal plane, meanwhile, the sleeve slides along the first supporting member and the second supporting member and is located at the joint of the first supporting member and the second supporting member, the first supporting member and the second supporting member are prevented from rotating through the rotating shaft, the rigidity and the supporting strength of the first supporting member and the second supporting member are guaranteed, the overhauling platform is in an unfolded state, and the operator can overhaul the supporting plate.
When maintenance is completed, when the maintenance platform is folded, an operator operates the connecting piece through a gap between the supporting plate and the side wall of the elevator shaft, drives the sleeve to slide to the second supporting member through the connecting piece, and exposes the rotating shaft, the first supporting member rotates through the rotating shaft and the first rotating pair and then enters the accommodating groove, the second supporting member rotates through the rotating shaft and the second rotating pair, then the supporting plate is pressed down, so that the supporting plate rotates downwards around the hinge rotating shaft to restore to an initial state, at the moment, one side, away from the joint of the supporting plate and the spandrel girder, of the supporting plate is close to the lower side of the spandrel girder, and the supporting plate returns to a vertical state or an inclined state, and at the moment, the maintenance platform returns to the initial state.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the present invention, and all such modifications and equivalents are included in the scope of the claims.
Claims (5)
1. The foldable car roof overhaul platform comprises two parallel bearing beams (1), 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 overhaul platform is characterized in that one sides, away from each other, of the two bearing beams are respectively provided with a containing groove (2) penetrating through two ends of the two bearing beams along the length direction of the two bearing beams; one side, away from the two spandrel girders, of each supporting plate is respectively provided with a supporting plate (4), one side of each supporting plate is rotationally connected with the spandrel girder through a hinge, and the supporting plates at least can rotate downwards to a vertical state around the rotating shaft of the hinge; the length direction of the supporting plate is consistent with the length direction of the spandrel girder, and gaps are formed between the two ends of the supporting plate and the side wall of the elevator shaft;
at least one group of supporting structures are arranged in the accommodating groove of the spandrel girder, 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 rotationally connected with the spandrel girder through the corresponding first rotating pair; the other end of the first supporting member is provided with a rotating shaft (8) and is rotationally connected with one end of the second supporting member through the rotating shaft; a second revolute pair (9) is arranged on the lower side of one side, far away from the spandrel girder, of the supporting plate, and the other end of the second supporting member is rotationally connected with the supporting plate through the second revolute pair;
a sleeve (10) is sleeved on the second supporting member, 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 joint of the first supporting member and the second supporting member;
the elevator comprises a supporting plate, a sleeve, a connecting piece (14) and a supporting plate, wherein the sleeve is fixedly connected with the connecting piece, the length direction of the supporting plate is consistent with the length direction of the supporting beam, and two ends of the supporting plate extend into gaps between two ends of the supporting plate and the side wall of an 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 joint of the supporting plate and the spandrel girder, is close to the lower side of the spandrel girder;
when the support plate is unfolded, the first support member rotates through the first rotating pair, and the second support member rotates through the rotating shaft and the second rotating pair, so that the first support member and the second support member form a straight line, the support plate is unfolded to be in a horizontal state, 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 the elevator shaft is folded, the connecting piece is operated through a gap between the supporting plate and the side wall of the elevator shaft, the sleeve is driven to slide onto the second supporting member through the connecting piece, the rotating shaft is exposed, and then the supporting plate is pressed down, so that the supporting plate rotates downwards around the hinge rotating shaft to return to an initial state;
the elevator further comprises a connecting plate (3) which is paved above the two spandrel girders, and the two ends of the connecting plate respectively extend to the side wall close to the elevator shaft; the lower surface of the connecting plate is fixedly connected with the upper side surfaces of the two spandrel girders at the same time, and the opposite two sides of the connecting plate at least extend to be parallel and level with one side deviating from the two spandrel girders; the support plates are positioned on two sides of the connecting plate, and one side of each support plate is rotationally connected with the connecting plate through a hinge;
and a connecting spring (11) is sleeved outside the second supporting 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.
2. The foldable car roof maintenance platform according to claim 1, further comprising two fixing plates (12), wherein the two fixing plates are located at two ends of the spandrel girder along the length direction of the spandrel girder and fixedly connected with guardrails (13) in an elevator hoistway, an unfolding locating point and a folding locating point are respectively arranged at one side of the fixing plates facing the spandrel girder, matched locking parts are arranged at two ends of the unfolding locating point, the folding locating point and a connecting piece, and one end of the connecting piece is fixedly connected with the fixing plates through the locking parts.
3. The collapsible ceiling service platform of claim 1, wherein 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.
4. The collapsible car roof service platform of claim 1, wherein the side walls of the receiving slot opening are folded in opposite directions to form an upper edge (15) and a lower edge (16).
5. The method for using the foldable car roof maintenance platform is characterized by comprising the following steps of:
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 joint of the supporting plate and the spandrel girder, is close to the lower side of the spandrel girder;
when the support plate is required to be overhauled, the first support member rotates through the first rotating pair, the second support member rotates through the rotating shaft and the second rotating pair, so that the first support member and the second support member form a straight line, the support plate is unfolded to be in a horizontal state, 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, the rigidity and the support strength of the first support member and the second support member are ensured, and an operator can overhaul the support plate at the moment;
when the elevator shaft is folded, the connecting piece is operated through a gap between the supporting plate and the side wall of the elevator shaft, the sleeve is driven to slide onto the second supporting member through the connecting piece, the rotating shaft is exposed, and then the supporting plate is pressed down, so that the supporting plate rotates downwards around the hinge rotating shaft to return to an initial state.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
|---|---|
| CN112141859A CN112141859A (en) | 2020-12-29 |
| CN112141859B true CN112141859B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011166785.1A Active CN112141859B (en) | 2020-10-27 | 2020-10-27 | Foldable car roof maintenance platform and use method thereof |
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| CN (1) | CN112141859B (en) |
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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 |
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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 |
|---|---|
| CN112141859A (en) | 2020-12-29 |
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