CN113003499A - A aerify lift platform for construction in pit - Google Patents
A aerify lift platform for construction in pit Download PDFInfo
- Publication number
- CN113003499A CN113003499A CN202110296166.2A CN202110296166A CN113003499A CN 113003499 A CN113003499 A CN 113003499A CN 202110296166 A CN202110296166 A CN 202110296166A CN 113003499 A CN113003499 A CN 113003499A
- Authority
- CN
- China
- Prior art keywords
- supporting
- platform
- lifting
- cover plate
- cover body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/35—Inflatable flexible elements, e.g. bellows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
Abstract
The invention discloses an inflatable lifting platform for underground construction, which relates to the field of lifting equipment and comprises a supporting platform and a lifting assembly, wherein the supporting platform is used for realizing fixed support underground, the lifting assembly is arranged on the supporting platform and can realize lifting of a person or an object positioned at the top of the lifting assembly, and the supporting platform comprises a base, a supporting arm and a driving mechanism.
Description
Technical Field
The invention belongs to the field of lifting equipment, and particularly relates to an inflatable lifting platform for underground construction.
Background
The lifting platform is widely applied to the fields of industry, storage, disaster relief, municipal installation, engineering and the like, and has the function of lifting people or objects to realize the operation function. The hydraulic or screw and nut mechanism is mainly used for driving to push the parallelogram mechanism to deform so as to lift the top plate, and the hydraulic or screw and nut mechanism has the following defects:
1. the height can not be too low, and the dead point of the parallelogram mechanism can be reached if the height is too low, so that the parallelogram mechanism can not be lifted; this results in that the volume of the mechanism cannot be very small when it is retracted;
2. the lifting height cannot be too high, and the support part of the parallelogram mechanism has small span and is easy to cause instability after being too high, so that the lifting height is about 3 times of the retraction height at most, and multiple layers are used for lifting the lifting multiple, but the mechanism is more unstable when the layer number is higher.
In the aspect of underground maintenance engineering, for the maintenance of a well wall, particularly for a deep well, the construction mode that a cable suspends workers in the well is mostly adopted at present, and because of no stable support, the workers are often in a swaying unstable state in the construction process, the construction difficulty is high, the efficiency is low, the physical consumption of the workers is high, the workers are easy to fatigue, and the conventional lifting platform of a hydraulic type or screw nut mechanism is difficult to apply to the aspect of underground maintenance due to the fact that the ground is not used as a support, so that a lifting mechanism which can stably support and has a high lifting ratio is needed to be developed.
Disclosure of Invention
The invention aims to provide an inflatable lifting platform for underground construction, which aims to solve the defects caused in the prior art.
An inflatable lifting platform for underground construction comprises a supporting platform and a lifting assembly, wherein the supporting platform is used for realizing fixed support underground, and the lifting assembly is arranged on the supporting platform and can realize lifting of a person or an object positioned at the top of the lifting assembly;
the supporting platform comprises a base, a supporting arm and a driving mechanism, the base is of a cylindrical shell structure with an opening at the upper end, the upper end of the base is sealed by a cover plate, the supporting arm is provided with a plurality of supporting blocks and is horizontally and slidably connected into the side wall of the base, the supporting arm comprises a supporting block, a sliding block and a wire guide wheel, the supporting block is fixedly connected with one end of the sliding block, the other end of the sliding block is connected to the driving mechanism, the supporting block is stored and unfolded by means of the driving mechanism, and the cross section of the sliding block.
Preferably, actuating mechanism includes driving motor, screw rod, sliding sleeve and connecting rod, driving motor installs in the upper end of apron and its output is connected to the screw rod, and in the bearing on the lower extreme installation to the base of screw rod, sliding sleeve threaded connection was on the screw rod, the both ends of connecting rod are articulated with sliding sleeve, slider respectively.
Preferably, the lifting assembly comprises a cover body, an air pump, steel wire winches, an air bag, a supporting plate and a guiding mechanism, the cover body is arranged on the cover plate, the air pump is arranged on the cover plate and connected to the air bag, the number of the steel wire winches is equal to that of the supporting plates, the steel wire winches are circumferentially arranged on the cover plate, the upper end and the lower end of the air bag are respectively connected with the supporting plate and the cover plate, a notch is formed in the edge of the cover body and provided with the guiding mechanism, a steel wire rope of the winches extends to the outer side of the cover body by means of guiding of the guiding mechanism and penetrates through a guide wire wheel to be connected to a locking.
Preferably, guiding mechanism includes upset seat and guide wheel, the upper portion of upset seat is rotated through the pivot and is connected in the breach, install the reset of torsional spring in order to realize the upset seat in the pivot, the inboard of upset seat is fixed with the supporting seat, the guide wheel rotates to be connected on the supporting seat.
Preferably, the air bag is a corrugated pipe made of PVC clamp mesh cloth, and the outer diameter of the supporting plate is larger than the outer diameter of the cover body and the outer diameter of the corrugated pipe.
Preferably, the number of support arms is at least 4.
Preferably, the outer side surface of the supporting block is a circular arc surface and is provided with an anti-skid bulge.
The invention has the advantages that:
(1) based on the characteristics of underground construction, the underground stable support at any position is realized by means of the support platform, and meanwhile, an inflatable lifting mode is adopted, so that the underground stable support is light in weight and large in lifting ratio, the well wall maintenance in a larger area can be realized under the condition that the position of the support platform is not readjusted, the construction efficiency is improved, and the construction difficulty is reduced;
(2) the portable multifunctional chair adopts a storable structural design, has small volume and is convenient to carry;
(3) in order to improve the stability of the support, the outer diameter of the air bag is equal to that of the cover body, so that an expandable guide mechanism and a wire guide wheel are specially designed to avoid interference of a steel wire rope on the air bag during working, the guide mechanism can be synchronously opened in an expanded mode of the support arm, no additional driving equipment is needed, the structure is simplified, the construction speed is improved, the guide mechanism can be retracted when the guide mechanism is not needed to be used, the guide mechanism and the cover body are integrated, the protection of the guide mechanism is realized, the occupation of external space is avoided, and the carrying is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the airbag and the supporting plate of fig. 1 with parts removed.
Fig. 3 is a schematic view of the cover-removed structure of fig. 2.
Fig. 4 is an internal schematic view of the support platform.
Fig. 5 is a schematic view from the bottom of fig. 4.
Fig. 6 is a schematic view of the connection of the steel wire rope to the locking ring.
Wherein the content of the first and second substances,
1-supporting platform, 11-base, 12-supporting arm, 120-supporting block, 121-sliding block, 122-wire guide wheel, 123-support, 13-driving mechanism, 130-driving motor, 131-screw, 132-sliding sleeve, 133-connecting rod and 14-cover plate;
2-lifting component, 21-cover body, 22-air pump, 23-steel wire winding machine, 24-air bag, 25-supporting plate, 26-guiding mechanism, 260-overturning seat, 261-guiding wheel, 262-supporting seat, 27-notch, 28-locking ring, 29-angle sensor and 210-steel wire rope.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, wherein fig. 1 shows a schematic view of the elevating platform of the present invention in an inoperative state, the air bag 24 is in a non-fully compressed state.
An inflatable lifting platform for underground construction comprises a supporting platform 1 and a lifting assembly 2, wherein the supporting platform 1 is used for realizing fixed support underground, and the lifting assembly 2 is arranged on the supporting platform 1 and can realize lifting of a person or an object positioned at the top of the lifting assembly 2;
the supporting platform 1 comprises a base 11, a supporting arm 12 and a driving mechanism 13, wherein the base 11 is a cylindrical shell structure with an open upper end, the upper end of the base is sealed by a cover plate 14, a plurality of the supporting arms 12 are horizontally and slidably connected into the side wall of the base 11, each supporting arm 12 comprises a supporting block 120, a slider 121 and a wire guide wheel 122, the supporting block 120 is fixedly connected with one end of the slider 121, the other end of the slider 121 is connected to the driving mechanism 13, the supporting block 120 is accommodated and unfolded by means of the driving mechanism 13, the cross section of the slider 121 is polygonal, and the wire guide wheel 122 is mounted on the supporting block 120 through a support 123;
the lifting assembly 2 comprises a cover body 21, an air pump 22, steel wire winding machines 23, air bags 24, supporting plates 25 and a guide mechanism 26, wherein the cover body 21 is installed on the cover plate 14, the air pump 22 is installed on the cover plate 14 and connected to the air bags 24, the number of the steel wire winding machines 23 is the same as that of the supporting plates, the steel wire winding machines are circumferentially arranged on the cover plate 14, the upper end and the lower end of each air bag 24 are respectively connected with the supporting plates 25 and the cover plate 14, a notch 27 is formed in the edge of the cover body 21, the guide mechanism 26 is installed on the edge of the cover body 21, a steel wire rope 210 of each winding machine extends to the outer side of the cover body 21 under the guide of the guide mechanism 26 and penetrates through a wire guide wheel 122 to be connected.
In this embodiment, the driving mechanism 13 includes a driving motor 130, a screw 131, a sliding sleeve 132 and a connecting rod 133, the driving motor 130 is installed at the upper end of the cover plate 14, and the output end of the driving motor is connected to the screw 131, the lower end of the screw 131 is installed in a bearing on the base, the upper portion of the screw 131 is installed in a bearing on the cover plate 14, the sliding sleeve 132 is connected to the screw 131 by screw threads, and two ends of the connecting rod 133 are respectively hinged to the sliding sleeve 132 and the sliding block 121.
In this embodiment, the guiding mechanism 26 includes a turning seat 260 and a guiding wheel 261, the upper portion of the turning seat 260 is rotatably connected in the notch 27 through a rotating shaft, a torsion spring is installed on the rotating shaft to reset the turning seat 260, a supporting seat 262 is fixed on the inner side of the turning seat 260, and the guiding wheel 261 is rotatably connected on the supporting seat 262.
In this embodiment, the air bag 24 is a corrugated tube made of PVC mesh fabric, and the outer diameter of the support plate 25 is larger than the outer diameters of the cover body 21 and the corrugated tube.
In this embodiment, the number of the support arms is at least 4.
In this embodiment, the outer side surface of the supporting block 120 is a circular arc surface and is provided with an anti-slip protrusion.
In order to realize the stable operation of each execution component in the present invention, a controller (not shown in the figure) may be provided, which has a control module inside and can control the rotation of the hoist to realize that the supporting plate 25 is always in a stable horizontal state, the cover plate 14 may be provided with a related control circuit board and connecting wires for connecting the driving motor 130, the wire hoist 23 and the air pump 22 to the controller, and the controller is connected to the power supply device on the well through a cable
The working process of the invention is as follows:
firstly, fastening a lifting hook on a supporting plate 25 by using a cable, lifting the lifting hook together with a constructor to a preset position, standing the constructor to keep still, then opening a supporting platform 1 through a controller, starting a driving motor 130 and driving a screw 131 to rotate, driving a sliding sleeve 132 to move upwards by the screw 131, driving a connecting rod 133 to move by the sliding sleeve 132, and finally driving a supporting block 120 to extend outwards until the supporting block 120 is contacted with and propped against the wall of a well, thereby completing the stable support of the lifting platform; meanwhile, the guide mechanism 26 can be synchronously opened when the support arm 12 is unfolded, and the purpose is to realize transition between the wire winch 23 and the wire guide wheel 122, that is, the support block 120 extends outwards and drives the wire rope 210 to stretch outwards by means of the wire guide wheel 122, so that the overturning seat 260 is driven to rotate outwards and unfold, the guide wheel 262 is in a working position, and the wire rope 210 is pulled to the outer side of the cover body 21 and keeps a certain distance from the outer side;
step two, a constructor stands on the supporting plate 25 to start maintenance operation of a well wall, when the lifting operation is needed, a lifting button of the controller is pressed, the air pump 22 starts to fill air into the air bag 24, meanwhile, the steel wire winch 23 is started, the steel wire rope 210 is always in a tensioning state and is provided with a threshold value of the tensioning force, the tensioning force of the steel wire rope 210 is always in the threshold value, the supporting stability is ensured, the angle sensor 29 on the upper portion of the supporting plate 25 is used for detecting the horizontal state of the supporting plate 25, and if one side inclines, the length of the steel wire rope 210 is automatically adjusted by a control module in the controller, so that the supporting plate 25 is always in the horizontal state;
and step three, after the construction operation is completed, a person stands still, presses down a descending button of the controller, the air pump 22 gradually pumps away air in the air bag 24, the supporting plate 25 and the air bag 24 descend and reset, then presses down a reset button of the supporting arm 12, the supporting arm 12 retracts and resets, the guide mechanism 26 also resets under the action of the torsion spring, and in the process, the steel wire winch 23 is always in a working state and finally retracts and tensions the steel wire rope 210.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (7)
1. An inflatable lifting platform for underground construction, which is characterized by comprising a supporting platform (1) and a lifting assembly (2), wherein the supporting platform (1) is used for realizing fixed support underground, and the lifting assembly (2) is arranged on the supporting platform (1) and can realize the lifting of a person or an object positioned at the top of the lifting assembly (2);
the supporting platform (1) comprises a base (11), a supporting arm (12) and a driving mechanism (13), the base (11) is of a cylindrical shell structure with an opening at the upper end, the upper end of the base is sealed by a cover plate (14), the supporting arm (12) is provided with a plurality of supporting blocks and is horizontally connected into the side wall of the base (11) in a sliding mode, the supporting arm (12) comprises a supporting block (120), a sliding block (121) and a wire guide wheel (122), the supporting block (120) is fixedly connected with one end of the sliding block (121), the other end of the sliding block (121) is connected to the driving mechanism (13) and achieves storage and expansion of the supporting block (120) by means of the driving mechanism (13), and the cross section of the sliding block (121).
2. An inflatable lift platform for use in downhole construction according to claim 1, wherein: the driving mechanism (13) comprises a driving motor (130), a screw rod (131), a sliding sleeve (132) and a connecting rod (133), the driving motor (130) is installed at the upper end of the cover plate (14) and the output end of the driving motor is connected to the screw rod (131), the lower end of the screw rod (131) is installed in a bearing on the base, the sliding sleeve (132) is in threaded connection with the screw rod (131), and two ends of the connecting rod (133) are hinged to the sliding sleeve (132) and the sliding block (121) respectively.
3. An inflatable lift platform for use in downhole construction according to claim 1, wherein: the lifting component (2) comprises a cover body (21), an air pump (22), a steel wire winding machine (23), an air bag (24), a supporting plate (25) and a guide mechanism (26), the cover body (21) is arranged on the cover plate (135), the air pump (22) is arranged on the cover plate (135) and is connected to the air bag (24), the number of the steel wire winding machines (23) is consistent with that of the supporting plates and is arranged on the cover plate (135) in a circumferential direction, the upper end and the lower end of the air bag (24) are respectively connected with the supporting plate (25) and the cover plate (135), the edge of the cover body (21) is provided with a notch (27) and is provided with the guide mechanism (26), a steel wire rope (210) of the winch extends to the outer side of the cover body (21) by means of the guide mechanism (26) and penetrates through the wire guide wheel (122) to be connected to a locking ring (28) on the supporting plate (25), and an angle sensor (29) is further arranged on the supporting plate (25) between every two adjacent locking rings (28).
4. An inflatable lift platform for downhole construction according to claim 3 wherein: guiding mechanism (26) are including upset seat (260) and guide wheel (261), the upper portion of upset seat (260) is rotated through the pivot and is connected in breach (27), install the reset of torsional spring in order to realize upset seat (260) in the pivot, the inboard of upset seat (260) is fixed with supporting seat (262), guide wheel (261) is rotated and is connected on supporting seat (262).
5. An inflatable lift platform for downhole construction according to claim 3 wherein: the air bag (24) is a corrugated pipe made of PVC clamp mesh cloth, and the outer diameter of the supporting plate (25) is larger than that of the cover body (21) and the corrugated pipe.
6. An inflatable lift platform for use in downhole construction according to claim 1, wherein: the number of the supporting arms is at least 4.
7. An inflatable lift platform for downhole construction according to claim 2 wherein: the outer side surface of the supporting block (120) is a circular arc surface and is provided with an anti-skid bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110296166.2A CN113003499A (en) | 2021-03-19 | 2021-03-19 | A aerify lift platform for construction in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110296166.2A CN113003499A (en) | 2021-03-19 | 2021-03-19 | A aerify lift platform for construction in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113003499A true CN113003499A (en) | 2021-06-22 |
Family
ID=76403254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110296166.2A Withdrawn CN113003499A (en) | 2021-03-19 | 2021-03-19 | A aerify lift platform for construction in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113003499A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113880004A (en) * | 2021-10-27 | 2022-01-04 | 上海机器人产业技术研究院有限公司 | High-precision multi-stage lifting mechanism |
| CN114314411A (en) * | 2021-11-25 | 2022-04-12 | 北京特种机械研究所 | Flexible elevating gear of gasbag |
-
2021
- 2021-03-19 CN CN202110296166.2A patent/CN113003499A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113880004A (en) * | 2021-10-27 | 2022-01-04 | 上海机器人产业技术研究院有限公司 | High-precision multi-stage lifting mechanism |
| CN114314411A (en) * | 2021-11-25 | 2022-04-12 | 北京特种机械研究所 | Flexible elevating gear of gasbag |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210622 |