CN116924193A - Elevator car comprising embedded lifting platform - Google Patents
Elevator car comprising embedded lifting platform Download PDFInfo
- Publication number
- CN116924193A CN116924193A CN202310980527.4A CN202310980527A CN116924193A CN 116924193 A CN116924193 A CN 116924193A CN 202310980527 A CN202310980527 A CN 202310980527A CN 116924193 A CN116924193 A CN 116924193A
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- Prior art keywords
- car
- lifting platform
- landing
- roof
- frame
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Links
- 230000007246 mechanism Effects 0.000 claims description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000013016 damping Methods 0.000 claims description 13
- 238000010008 shearing Methods 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 239000003351 stiffener Substances 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 17
- 230000007306 turnover Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses an elevator car comprising an embedded lifting platform, which comprises a lifting platform, a car wall, a car roof, a supporting frame, a car bottom frame, safety tongs and a sill, wherein the elevator car is provided with a lifting platform and a car body; the car roof is provided with an openable car roof; the lowest position of the lifting platform is flush with the sill plane; before the car roof is not opened, the highest lifting position of the lifting platform is one third of the net height in the car; after the car roof is opened, the highest lifting position of the lifting platform is two thirds of the net height in the car.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator car comprising an embedded lifting platform
Background
Because of the existence of the car roof protective guard, the elevator without a machine room has higher requirements on the height of the top floor of the hoistway, and the existing building hoistway has limited height of the top floor, so that the phenomenon that the elevator cannot be installed frequently occurs. If the car roof maintenance operation can be conveniently carried out by maintenance personnel, and the personal safety can be ensured, the car roof guard rail is canceled, the application bottleneck of the elevator without a machine room is relieved, and the car roof maintenance operation device has extremely important significance for the practical use of the elevator without a machine room.
Publication CN110194405B, CN112441491A, CN11634786a and the like propose an in-car working platform which is opened from the car roof and can be used for in-car maintenance, but such a scheme not only increases the difficulty in designing and installing mechanical parts of the car roof, but also has a larger limitation on the configuration of car roof decorating components in the car. In addition, because the position of the car top is relatively high, the maintenance personnel are difficult to open from the car, and the maintenance personnel still need to resort to auxiliary devices such as a cat ladder when entering the opened working platform, so that the practical application is very inconvenient.
Publication CN114920104a discloses an elevator car with a liftable car bottom, which is beneficial for maintaining personnel to approach the car top, but has the following technical problems: failure to realize the linkage of the opening and closing of the car roof and the lifting position of the car bottom can cause the danger of improper operation of maintenance personnel; when the movable lifting platform is normally used as the car bottom, vibration or shaking is easily generated when the elevator runs, and riding comfort of passengers is affected.
Disclosure of Invention
In order to solve the technical problems, the invention provides an elevator car comprising an embedded lifting platform, which comprises a lifting platform, a car wall, a car top, a supporting frame, a car bottom frame, safety tongs and a sill;
the car roof is provided with an openable car roof; the lowest position of the lifting platform is flush with the sill plane; before the car roof is not opened, the highest lifting position of the lifting platform is one third of the net height in the car; after the car roof is opened, the highest lifting position of the lifting platform is two thirds of the net height in the car.
Preferably, the car roof is provided with an automatic opening device, and when the car roof is opened under the drive of the automatic opening device, the lifting platform is driven to descend to a position capable of avoiding the overturning and opening of the car roof.
Preferably, when the car roof is closed under the drive of the automatic opening device, the lifting platform is driven to descend to a position capable of avoiding the car roof to turn over and close or is driven to descend to the lowest position.
Preferably, the lifting platform comprises an upper platform, a lower platform, a power element, a shearing fork mechanism, a lower platform reinforcing rib and a reinforcing rib track; one side of the power element and one side of the shearing fork mechanism are hinged with the reinforcing ribs of the lower platform, the other side of the shearing fork mechanism moves on the reinforcing rib track, and the upper platform is driven to lift by the expansion and contraction of the shearing fork mechanism; the car bottom frame comprises a car bottom upper layer frame and a car bottom lower layer frame.
Preferably, the lifting platform is provided with a self-locking mechanism, and when the lifting platform is static, the lifting platform is self-locked by the self-locking mechanism.
Preferably, two vibration damping rubbers are respectively mounted on the front and rear beams of the under-car floor frame and the safety tongs, and the lower platform is mounted on the safety tongs and the front and rear beams of the under-car floor frame via the vibration damping rubbers.
Preferably, when the lifting platform is in a non-lifting state, the upper surface of the upper platform and the upper surface of the supporting frame are kept horizontal, the upper surface of the supporting frame is provided with a car wall, the lower surface of the supporting frame is connected with the upper layer frame of the car bottom through bolts, and the reinforcing ribs of the supporting frame support the upper platform.
Preferably, the shearing fork mechanism keeps a preset gap with the reinforcing rib of the supporting frame during movement.
Preferably, a layer of flexible material is stuck between the side edge of the lifting platform and the car wall.
Preferably, the lifting platform is spaced from the rear side wall of the car by a distance of about 100 mm.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
fig. 1 is a schematic view of an elevator car including an embedded lifting platform according to embodiment 1;
fig. 2 is a schematic diagram of a car roof maintenance workflow of example 1;
fig. 3 is a schematic structural diagram of a lifting platform according to embodiment 2;
fig. 4 to 6 are schematic views of a supporting frame structure and a connecting structure according to embodiment 3;
fig. 7 is a schematic diagram showing the connection structure of the lifting platform, the supporting frame and the lower layer frame of the car according to embodiment 4;
fig. 8 is a schematic diagram of the lifting and non-lifting states of an elevator car including an embedded lifting platform according to embodiment 3.
Description of the reference numerals
1, lifting a platform; 2, a car wall; 3, a car roof; 4, supporting a frame;
5, a car bottom upper layer frame; 6, a lower layer frame of the sedan chair; 7, a safety tongs; 8 sills;
11, loading a platform; 12 lower platforms; 13 a power element; 14 a scissors mechanism;
15 lower platform reinforcing ribs; 16 stiffener rails; 17 vibration damping rubber; 18 vibration damping rubber;
21 car front side walls; 22 car rear side walls; 31 electrically driven damping hinges; 32 turnover type sedan top plate;
33 a flip switch; 41 support frame front beams; 42 supporting a frame back beam; 43 support frame side beams;
44 support frame stiffener; 61 car under floor frame front beam 62 car under floor frame back beam
Detailed Description
Other advantages and technical effects of the present invention will become more fully apparent to those skilled in the art from the following disclosure, which is a detailed description of the present invention given by way of specific examples. The invention may be practiced or carried out in different embodiments, and details in this description may be applied from different points of view, without departing from the general inventive concept. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. The following exemplary embodiments of the present invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It should be appreciated that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical solution of these exemplary embodiments to those skilled in the art.
Example 1
As shown in fig. 1 and 2, the present embodiment provides an elevator car including an embedded lifting platform, which is characterized by comprising a lifting platform 1, a car wall 2, a car roof 3, a support frame 4, a car bottom frame, safety tongs 7 and a sill 8; the car bottom frame comprises a car bottom upper layer frame 5 and a car bottom lower layer frame 6.
The roof has an openable roof 32; the lowest position of the lifting platform 1 is flush with the plane of the sill 8; before the car roof is not opened, the highest lifting position of the lifting platform 1 is one third of the net height in the car; after the top plate of the car is opened, the highest lifting position of the lifting platform 1 is two thirds of the net height in the car.
The car roof is provided with an automatic opening device, and when the car roof is opened under the drive of the automatic opening device, the lifting platform is driven to descend to a position capable of avoiding the overturning and opening of the car roof. When the car roof is closed under the drive of the automatic opening device, the lifting platform is driven to descend to a position capable of avoiding the turning and closing of the car roof or is driven to descend to the lowest position.
Fig. 2 is a car top service work flow diagram of an elevator car including an embedded elevator landing of an embodiment. In the initial state, the lifting platform 1 is in a compressed state at the lowest position, is flush with the plane of the sill 8 and keeps a horizontal state. The turnover type car roof 32 is locked by a turnover switch 33, passengers can stand on the elevator car bottom lifting platform 1, and the elevator car can normally carry passengers up and down. When the maintenance operation of the car roof is needed, maintenance personnel can control the platform to be lifted to about one third of the clear height in the car on the platform, after stopping, the car roof overturning switch 33 is turned on, the car roof overturning plate 32 rotates around the electric drive damping hinge 31, meanwhile, the car floor lifting platform 1 slowly descends to the upper layer of car roof overturning to leave a space at a constant speed, and the upper layer of car roof overturning plate 32 slowly opens until being close to the car rear side car wall 22. The lifting platform 1 can be lifted to the maximum two thirds of the net height in the car, and the self-locking is stable, so that the normal operation of the personnel is maintained. The size and the carrying capacity of the lifting platform can meet the requirement that two people can work simultaneously, after the maintenance work is finished, the lifting platform 1 descends, the turnover type car top plate 32 reversely turns to a horizontal state under the drive of the electric drive damping hinge 31, then the lifting platform 1 is lifted, maintenance personnel manually close the turnover switch 33, the lifting platform 1 descends to be in a horizontal state with the plane of the sill 8 again, and the elevator resumes a normal up-down passenger carrying state. Fig. 2-b illustrates the manner in which the roof of example 1 is opened, with a damped hinge to facilitate adjustment of the speed and angle of overturning, and slow descent to reduce impact on the walls, but the roof opening mechanism includes, but is not limited to, up and down movement, horizontal movement or roller blind, folding mechanism, etc. The car roof decorating components, such as a car ceiling lamp, a fan and the like, can be integrated on the turnover car roof.
The elevator car with the embedded lifting platform of the embodiment cancels the original car top protective fence, the car top is changed into a turnover car top which can be conveniently opened inwards, and the elevator car is closed to the rear side car wall of the car after being opened. The original integral upper and lower layers of the car bottom are changed into an independent upper layer of the car bottom, the upper layer of the car bottom is improved into an independent embedded lifting working platform, the upper layer of the car bottom can move upwards in parallel relative to the lower layer of the car bottom, the lifting platform can be used for rescue or overhaul in the car, and the original surrounding car walls of the car are used as safety guards for maintenance personnel.
A layer of flexible material is stuck between the side edge of the lifting platform 1 and the car wall 2 so as to ensure the stability of the platform. . The lifting platform 1 is spaced from the rear side wall of the car by about 100mm, so that a space is reserved for the turnover type car roof which is close to the rear side wall of the car after being opened.
Compared with the prior art, the embodiment cancels the original car top protective guard, reduces the height of the top layer of the car, removes the application bottleneck of the elevator without the machine room, and increases the utilization rate of a hoistway. In the initial state, the lift platform at the bottom of the sedan-chair is parallel and level with the sill plane, and the elevator can normally reciprocate. When the maintenance operation of the car roof is needed, maintenance personnel can control the platform to be lifted to about one third of the net height in the car on the platform, after stopping, the upper layer turnover car roof switch is turned on, then the platform descends to turn over the upper layer car roof to leave a space, and the upper layer car roof is slowly opened until the upper layer car roof is close to the rear side car wall. The platform can be continuously lifted to the maximum two thirds of the net height in the car, and the self-locking is kept stable, so that normal operation of personnel is maintained. The size and the carrying capacity of the lifting platform can meet the requirement that two persons can work simultaneously.
Example 2
The present embodiment provides an exemplary lifting platform structure on the basis of embodiment 1, as shown in fig. 3, the lifting platform 1 includes an upper platform 11, a lower platform 12, a power element 13, a scissor mechanism 14, a lower platform stiffener 15, and a stiffener rail 16; one side of the power element 13 and one side of the shearing mechanism 14 are hinged with the lower platform reinforcing ribs 15, the other side of the shearing mechanism 14 moves on the reinforcing rib tracks 16, and the upper platform 11 is driven to lift by the expansion and contraction of the shearing mechanism 14.
When the lifting platform 1 is lifted to a preset height, an operator presses the stop button, the lifting platform can be stably kept at the specified height through self-locking, the lifting platform can be stably kept when bearing 200kg and has no permanent deformation, and the platform can meet the requirement that two operators carrying operation tools can simultaneously carry out maintenance work in the car roof. The shearing fork mechanism for the lifting platform can be replaced by screw rod linkage, mast type, arm frame type, sleeve cylinder type and truss type mechanisms; the power elements also include, but are not limited to, hydraulic drives, lead screw screws, gas springs, or reduction gear assemblies, among others.
Example 3
The present embodiment provides the structure of the exemplary support frame 4 on the basis of embodiment 2, and as shown in fig. 4 to 6, the support frame 4 includes a support frame front beam 41, a support frame rear beam 42, support frame side beams 43, and support frame reinforcing ribs 44. The sill 8 is secured within a notched slot in the support frame front beam 41.
Two vibration damping rubbers 17, 18 are respectively attached to the front and rear beams 61, 62 of the lower floor frame of the car and the safety tongs 7, and the lower platform 12 of the lifting platform is attached to the front and rear beams 61, 62 of the safety tongs 7 and the lower floor frame of the car via the vibration damping rubbers, thereby achieving vibration damping effect.
The supporting frame structure of the embodiment reduces the additionally increased carrying capacity, expands the space of the car bottom and is convenient for installing an independent embedded lifting platform. Meanwhile, the supporting frame considers the requirement that a certain initial height is needed when the lifting platform is in a non-lifting state under the condition of a large-tonnage load elevator, and further provides a space for the embedded platform. In addition, the embedded lifting platform has small modification on side beams of the lower layer frame and the upper layer frame of the elevator car with the current structure, and is convenient for practical application. And the vibration isolation problem is also better solved by additionally installing the car bottom rubber between the lower platform of the lifting platform and the safety tongs and other parts.
Fig. 8 shows a non-lifting and lifting state of the embedded lifting platform, when the embedded lifting platform is in the non-lifting state (i.e. the lifting platform is at the lowest position), the upper platform 11 is kept level with the upper surface of the supporting frame 4, the upper surface of the supporting frame 4 is provided with a car wall, the lower surface of the supporting frame 4 is connected with the car bottom upper layer frame 5 through bolts and the like, the supporting frame reinforcing ribs 44 support the lifting platform 11, so that the load in the car is applied to the supporting frame 4, and the scissor mechanism 14 of the lifting platform 1 does not interfere with the supporting frame reinforcing ribs 44 in the moving process; in the lifted state, the scissor mechanism 14 is driven by the power element 13 to move the upper platform 11 of the lifting table upwards.
The design of the supporting frame reinforcing ribs 14 can meet the requirement of the embedded lifting platform for bearing the load in the elevator car in a non-lifting state, so that the load main body is still applied to the upper frame of the elevator car bottom through the supporting frame, but does not act on the lifting platform completely, the lifting platform only bears the carrying capacity of maintenance personnel and equipment tools in a lifting state, and the carrying capacity is still borne by the original elevator car bottom frame in the non-lifting state and the normal up-down state of the elevator, so that the stability of the lifting platform of the elevator in the normal up-down state is also ensured.
The mounting holes of the side beams 43 of the supporting frame are positioned in conformity with the upper frame of the original car bottom. Meanwhile, the design of keeping the original upper and lower floors of the elevator car bottom not only fully plays the damping function of the original structure of the elevator, but also reduces the cost of carrying out large-scale structural improvement on the existing elevator.
Example 4
The difference between this embodiment and embodiment 1 is that, as shown in fig. 7, the upper frame of the car bottom can be selected according to the civil engineering requirement, and the upper frame of the car bottom can be omitted and only the lower frame of the car bottom can be arranged under the condition of dealing with the small-tonnage household ladder, so that the structure is simpler and the installation is more convenient.
The present invention has been described in detail by way of specific embodiments and examples, but these should not be construed as limiting the invention. Many variations and modifications may be made by one skilled in the art without departing from the principles of the invention, which is also considered to be within the scope of the invention.
Claims (10)
1. An elevator car comprising an embedded lifting platform is characterized by comprising a lifting platform, a car wall, a car roof, a supporting frame, a car bottom frame, safety tongs and a sill;
the car roof is provided with an openable car roof; the lowest position of the lifting platform is flush with the sill plane; before the car roof is not opened, the highest lifting position of the lifting platform is one third of the net height in the car; after the car roof is opened, the highest lifting position of the lifting platform is two thirds of the net height in the car.
2. The elevator car of claim 1, wherein the roof has an automatic opening device, and wherein the landing is driven to descend to a position in which the roof can be turned open when the roof is opened by the automatic opening device.
3. The elevator car of claim 2, wherein the landing is driven to descend to a position where it can avoid the ceiling to turn closed or to a lowermost position when the ceiling is closed by the actuation of the automatic opening device.
4. The elevator car of claim 1, wherein the elevator landing comprises an upper landing, a lower landing, a power element, a scissor mechanism, a lower landing stiffener, and a stiffener rail; one side of the power element and one side of the shearing fork mechanism are hinged with the reinforcing ribs of the lower platform, the other side of the shearing fork mechanism moves on the reinforcing rib track, and the upper platform is driven to lift by the expansion and contraction of the shearing fork mechanism; the car bottom frame comprises a car bottom upper layer frame and a car bottom lower layer frame.
5. The elevator car of claim 1, wherein the landing has a self-locking mechanism, the landing being self-locking by the self-locking mechanism when the landing is stationary.
6. The elevator car including the embedded lifting platform as claimed in claim 4, wherein two damping rubbers are respectively installed on the front and rear beams of the lower floor frame of the car and the safety gear, and the lower platform is installed on the safety gear and the front and rear beams of the lower floor frame of the car via the damping rubbers.
7. The elevator car of claim 4, wherein the upper landing is horizontally disposed from the upper surface of the support frame when the landing is in the non-elevated position, the upper surface of the support frame is provided with a wall, the lower surface of the support frame is bolted to the upper frame of the floor, and the support frame has ribs for supporting the upper landing.
8. The elevator car including an embedded lifting platform of claim 4, wherein the scissor mechanism maintains a predetermined gap with a stiffener of the support frame during movement.
9. The elevator car of claim 1, wherein a layer of flexible material is applied between the side edges of the landing and the wall of the car.
10. The elevator car including an embedded landing of claim 1, wherein the landing is spaced from a rear side wall of the car by a distance of about 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310980527.4A CN116924193A (en) | 2023-08-07 | 2023-08-07 | Elevator car comprising embedded lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310980527.4A CN116924193A (en) | 2023-08-07 | 2023-08-07 | Elevator car comprising embedded lifting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116924193A true CN116924193A (en) | 2023-10-24 |
Family
ID=88394104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310980527.4A Pending CN116924193A (en) | 2023-08-07 | 2023-08-07 | Elevator car comprising embedded lifting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116924193A (en) |
-
2023
- 2023-08-07 CN CN202310980527.4A patent/CN116924193A/en active Pending
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