CN109914769B - Elevating platform for housing construction - Google Patents

Elevating platform for housing construction Download PDF

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Publication number
CN109914769B
CN109914769B CN201910232444.0A CN201910232444A CN109914769B CN 109914769 B CN109914769 B CN 109914769B CN 201910232444 A CN201910232444 A CN 201910232444A CN 109914769 B CN109914769 B CN 109914769B
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base
lifting platform
electric
platform
wall
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CN109914769A (en
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汪铮
梁广远
汪从
李士亮
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MCC5 Group Shanghai Corp Ltd
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MCC5 Group Shanghai Corp Ltd
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Abstract

The utility model provides a housing construction elevating platform for construction, includes mobile unit, pole setting position control unit, its characterized in that: the mobile unit comprises four groups of upright rods arranged in a square shape, the upright rod position adjusting unit comprises a base, and an electric lifting platform is arranged at the top of the base. The lifting platform for house building construction has the advantages that the lifting platform is simple in structure and convenient to manufacture, the lifting platform works stably, the base moves on the fixed sliding rod, jolt caused by contact with stones, concrete blocks and the like in the moving process is avoided, the bracket is favorable for moving stably, negative influence on psychology of operators is avoided, four groups of mutually independent jacks and adjusting mechanisms are favorable for keeping the lifting platform horizontal when the ground is not parallel, the lifting platform is convenient to walk, and the progress of engineering is accelerated.

Description

Elevating platform for housing construction
Technical Field
The invention relates to a lifting platform, in particular to a lifting platform for building construction.
Background
The lifting platform has the characteristics of free lifting, is widely applied to municipal maintenance, cargo transportation at wharfs and logistics centers, building decoration and the like, and has the advantages of light weight, electric starting, self-supporting legs, simplicity in operation, large operation area, capability of crossing obstacles to perform aerial work and the like.
Chinese patent CN103663256B discloses a lifting platform in 2016, 9, 28, which comprises a load board, a bottom board, a transmission assembly and at least one set of lifting assembly; the load board is arranged on the upper side of the bottom board; the lifting assembly is arranged between the load board and the bottom board; each group of lifting components comprises two supporting arms which are mutually crossed and hinged; the both ends of transmission assembly are connected with the tip of two spinal branch vaulting poles respectively, can go up and down the workstation, have made things convenient for the operation, but this elevating platform is very troublesome when removing, and if the people stands on this kind of elevating platform and carry out construction operation also very dangerous moreover, remove very inconveniently moreover.
Chinese patent CN107697860A discloses in 2018, 2.26.a lifting platform for electric power construction convenient to move, which comprises a base, wherein connecting grooves are formed in four corners of the bottom surface of the base, a first piston is arranged in each connecting groove, a rotating wheel is fixedly connected to the center of the bottom surface of the first piston, a hydraulic groove is formed in the center of the upper surface of the base, and a second piston is arranged in each hydraulic groove. However, when the technical scheme is used, the first motor is started firstly, the first motor drives the threaded rod to rotate, the threaded rod rotates in the threaded pipe, the threaded pipe moves downwards due to limitation of the limiting plate and the limiting sliding groove, the threaded pipe moves downwards to push the second piston to move downwards in the hydraulic groove, hydraulic oil in the hydraulic groove flows into the connecting groove through the first hydraulic pipeline, the hydraulic oil flows into the connecting groove to push the first piston to move downwards, and the rotating wheel is exposed from the connecting groove and can walk by the rotating wheel. The defects are that the mechanism is complex and the operation and the walking are inconvenient. The operator is located in the higher high air through the lifting platform, and in the moving process of the lifting platform, due to the fact that the ground of a house building construction site is uneven, a lot of construction waste materials such as stones and concrete blocks exist, the stones and the concrete blocks can cause jolt to the moving of the sliding bracket, and even small jolt can have negative influences on psychology of the operator located in the high air.
The known lifting table therefore suffers from the inconveniences and problems described above.
Disclosure of Invention
The invention aims to provide a multifunctional, stable-moving, safe and reliable lifting platform for building construction.
In order to achieve the purpose, the technical solution of the invention is as follows:
the utility model provides a lifting platform for housing construction, the lifting platform is equipped with four group's landing legs of bottom band pulley, arranges square bottom plate in the middle of four group's landing legs, and bottom plate upper portion sets firmly the base, and the base top is provided with electric lift platform, goes up and down through outside electric control switch control lifting platform, and operating personnel stands and goes up and down through electric control switch control electric block at the lifting platform top, rises ground goods and materials to the high altitude through electric block, including mobile unit, pole setting position control unit, its characterized in that:
the moving unit comprises four groups of upright posts which are arranged in a square shape, the lower ends of the upright posts are provided with walking wheels through an adjusting mechanism, and the upper parts of the four groups of upright posts are fixedly connected with four groups of sliding rods which are horizontally arranged to form a stable lifting platform bracket; the central positions of the four groups of upright posts are provided with bottom plates, the upper parts of the bottom plates are fixedly connected with the base, four corners of the lower part of each bottom plate are respectively provided with a jack, the jacks are vertical to the bottom plates, and the jacks can be supported on the ground when being ejected downwards;
pole setting position control unit includes the base, the base top is provided with electric lift platform, electric lift platform top periphery is provided with the rail, through annular slide rail and annular slider coaxial coupling between base and the bottom plate, base outer wall sub-unit connection has the turbine, the bottom plate is provided with the rotary mechanism who drives the turbine rotation, four group's pole settings are close to one side each other and are provided with the spiral mechanism, spiral mechanism drives the base through accomodating the rope and slides from side to side on the slide bar outer wall, electric lift platform top is located the inside perpendicular rigid coupling of rail and has the stand, the stand upper end is connected with the horizontal pole perpendicularly, electric block installs.
The lifting platform for building construction can be further realized by adopting the following technical measures.
The lifting platform for house building construction is characterized in that the jack is an electric hydraulic jack.
Aforementioned elevating platform for housing construction, wherein adjustment mechanism includes the sleeve, sliding connection about sleeve inner chamber and the pole setting outer wall, connects through electric putter between sleeve inner chamber diapire and the pole setting bottom, and the electric putter outer wall cup joints the elastic component, is favorable to keeping the level of base when ground nonparallel through four group's adjustment mechanism of mutual independence.
Aforementioned elevating platform for housing construction, wherein rotary mechanism includes two sets of perpendicular rigid couplings supports on the bottom plate, is connected with the scroll bar with the turbine meshing between two sets of supports, and scroll bar one end is connected with the first motor of installing on the support, and it is rotatory to drive the turbine through the scroll bar, realizes the change of base moving direction.
Aforementioned elevating platform for housing construction, wherein winding mechanism includes the spiral box, parallel connection has pivot and reciprocal lead screw between the lateral wall about the spiral box inner chamber, pivot outer wall connection has the take-up reel of action wheel and winding rope, pivot one end is connected with the second motor of installing at spiral box lateral wall, reciprocal lead screw outer wall connection has the follow driving wheel with the action wheel meshing, reciprocal lead screw outer wall spiro union has the removal seat of reciprocating sliding about the spiral box inner chamber, spiral box top is equipped with the opening, the rope is kept away from spiral wheel one end and is passed removal seat and opening, be favorable to taking in the rope to the take-up reel outer wall evenly.
In the lifting platform for building construction, the rope is a steel wire rope.
After the technical scheme is adopted, the lifting platform for building construction has the following advantages:
1. the lifting platform has simple structure and convenient manufacture;
2. the lifting platform works stably, the base moves on the fixed sliding rod, jolting caused by contact with stones, concrete blocks and the like in the moving process is avoided, the bracket is favorable for moving stably, and negative effects on psychology of operators are avoided;
3. the four groups of mutually independent jacks and adjusting mechanisms are beneficial to keeping the horizontal state when the ground is not parallel, so that the lifting platform can conveniently walk, and the project progress is accelerated.
Drawings
FIG. 1 is a schematic structural view of a lifting platform for building construction according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a rotating mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an adjusting mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a winding mechanism according to an embodiment of the invention.
In the figure: the automatic winding machine comprises a base 1, a bottom plate 2, a jack 3, a rotating mechanism 5, a support 51, a worm 52, a first motor 53, a turbine 6, an adjusting mechanism 7, a sleeve 71, a wheel 72, an electric push rod 73, an elastic element 74, a vertical rod 8, a winding mechanism 9, a winding box 91, a rotating shaft 92, a winding wheel 93, a second motor 94, a reciprocating screw rod 95, a driving wheel 96, a driven wheel 97, a movable seat 98, a rope 10, a sliding rod 11, an electric lifting platform 12, a fence 13, a vertical column 14, a cross rod 15 and an electric hoist 16.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
The invention relates to a lifting platform for building construction, which is provided with four groups of supporting legs with wheels at the bottom, wherein a square bottom plate is arranged in the middle of the four groups of supporting legs, a base is fixedly arranged at the upper part of the bottom plate, an electric lifting platform is arranged at the top of the base, the lifting platform is controlled to lift through an external electric control switch, an operator stands at the top of the lifting platform, controls an electric hoist to lift through the electric control switch, and lifts ground materials to high altitude through the electric hoist.
Referring to fig. 1, fig. 1 is a schematic structural view of a lifting platform for building construction according to an embodiment of the present invention. As shown in the figure, the moving unit comprises four groups of upright posts which are arranged in a square shape, the lower ends of the upright posts are provided with walking wheels through an adjusting mechanism, and the upper parts of the four groups of upright posts are fixedly connected with four groups of sliding rods which are horizontally arranged to form a stable lifting platform bracket; the central positions of the four groups of vertical rods are provided with bottom plates, the upper parts of the bottom plates are fixedly connected with the base, four corners of the lower parts of the bottom plates are respectively provided with a jack, the jacks are vertical to the bottom plates, and the jacks can be supported on the ground when being ejected downwards.
Pole setting position control unit includes the base, and 1 top of base is provided with electric lift platform 12, and electric lift platform 12 top periphery is provided with rail 13, adopts through annular slide rail and annular slider coaxial coupling between circular bottom plate 2 and the base 1 in this embodiment, and 1 outer wall sub-unit connection of base has turbine 6, and bottom plate 2 is provided with the rotary mechanism 5 that drives the rotation of turbine 6. Fig. 2 is a schematic structural diagram of a rotating mechanism according to an embodiment of the present invention.
Jack 3 is installed in 2 bottom four corners of bottom plate, base 1 middle part horizontal sliding connection has two sets of slide bars 11, both ends are connected with pole setting 8 perpendicularly about two sets of slide bars 11, 8 lower extremes of pole setting are connected with adjustment mechanism 7, four sets of pole settings 8 are close to one side each other and are provided with winding mechanism 9, winding mechanism 9 drives base 1 horizontal slip on slide bar 11 outer wall through accomodating rope 10, 12 tops of electric lift platform are located the inside perpendicular rigid coupling of rail 13 and have stand 14, stand 14 upper end is connected with horizontal pole 15 perpendicularly, electric block 16 installs in the bottom of the 15 other ends of horizontal pole. The rotating mechanism 5 comprises two groups of supports 51 vertically and fixedly connected on the bottom plate 2, a worm 52 meshed with the turbine 6 is connected between the two groups of supports 51, one end of the worm 52 is connected with a first motor 53 installed on the supports 51, the turbine 6 is driven to rotate in a labor-saving manner through the worm 52, and the moving direction of the base is changed. The jack 3 is an electric hydraulic jack.
Fig. 2 is a schematic structural diagram of an adjusting mechanism according to an embodiment of the present invention. The adjusting mechanism 7 comprises a sleeve 71, an inner cavity of the sleeve 71 is connected with the outer wall of the vertical rod 8 in a vertical sliding mode, the bottom wall of the inner cavity of the sleeve 71 is connected with the bottom of the vertical rod 8 through an electric push rod 73, an elastic piece 74 is sleeved on the outer wall of the electric push rod 73, and the four groups of mutually independent adjusting mechanisms 7 are beneficial to keeping the base horizontal when the ground is not parallel.
Fig. 3 is a schematic structural diagram of a winding mechanism according to an embodiment of the invention. Winding mechanism 9 includes spiral box 91, parallel connection has pivot 92 and reciprocal lead screw 95 between the lateral wall about spiral box 91 inner chamber, pivot 92 outer wall is connected with action wheel 96 and winding reel 93 of winding rope 10, pivot 92 one end is connected with installs the second motor 94 at spiral box 91 lateral wall, reciprocal lead screw 95 outer wall is connected with from the driving wheel 97 with the meshing of action wheel 96, reciprocal lead screw 95 outer wall spiro union has reciprocating sliding's removal seat 98 about spiral box 91 inner chamber, spiral box 91 open-top, rope 10 is kept away from spiral wheel 93 one end and is passed removal seat 98 and opening, be favorable to taking in the even rope 10 to spiral wheel 93 outer wall, rope 10 is wire rope.
Example 2
The invention discloses a using method of a lifting platform for building construction, which comprises the following steps:
step 1, when the electric lifting platform needs to move, the output ends of four groups of jacks 3 are respectively controlled to move downwards through external control switches, the jacks 3 are abutted against the ground to reversely drive the bottom plate 2 to ascend, so that the wheels 72 are separated from the ground, and the four groups of jacks 3 which are independent mutually are beneficial to keeping the top of the electric lifting platform 12 horizontal when the ground is not parallel.
Step 2, the electric lifting platform 12 is controlled to lift through an external control switch to achieve height adjustment, the electric lifting platform 12 is in the prior art, an operator stands when the top of the electric lifting platform 12 is located at a high altitude, the electric hoist 16 is controlled to lift through the control switch to lift ground stains to the high altitude through the electric hoist 16, the rotary cross rod 15 can place heavier materials which cannot be directly lifted by hand on the top of the electric lifting platform 12, and the electric hoist 16 is in the prior art.
Step 3, the second motor 94 is controlled to drive the rotating shaft 92 to rotate through the external control switch, the rotating shaft 92 rotates to drive the wire coiling wheel 93 and the driving wheel 96 to rotate, the wire coiling wheel 93 rotates to store or release the rope 10 wound on the outer wall, meanwhile, the driving wheel 96 drives the reciprocating screw rod 95 to rotate through the driven wheel 97, the reciprocating screw rod 95 rotates to drive the moving seat 98 to reciprocate left and right, the rope 10 which passes through the moving seat 98 is uniformly wound on the outer wall of the wire coiling wheel 93 through reciprocating movement left and right, the wire coiling mechanisms 9 on two groups of same sides drag the sliding rod 11 to slide in the inner cavity of the base 1, and the base 1 is suspended in the air in the moving process, so that the situation that the stone, the concrete block and. The other two groups of wire winding mechanisms 9 on the same side release the ropes with the same moving distance, so that the positions of the two groups of upright rods 8 are adjusted.
And 4, respectively controlling the four groups of jacks 3 to retract by the external control switch, enabling the four groups of wheels 72 to be abutted against the ground, and enabling the jacks 3 to be separated from the ground, and respectively controlling the four groups of electric push rods 73 by the external control switch to be beneficial to keeping the top of the electric lifting platform 12 horizontal when the ground is not parallel.
And 5, when the moving direction needs to be changed, the first motor 53 is controlled by the external control switch to drive the worm 52 to rotate, and the worm 52 rotates to drive the base 1 to rotate through the turbine 6, so that the changing of the moving direction is realized.
The lifting platform for house building construction has the advantages that the electric hoist is arranged, so that ground materials can be conveniently obtained by operators at high altitude; four sets of mutually independent jacks and adjustment mechanism are favorable to keeping the level when ground is not parallel, move on fixed slide bar through the base, avoid moving the in-process and contact such as stone and concrete piece and cause jolting, are favorable to the base to remove steadily, avoid producing negative effects to operating personnel psychology.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.

Claims (6)

1. The utility model provides a housing construction elevating platform for construction, includes mobile unit, pole setting position control unit, its characterized in that:
the moving unit comprises four groups of upright posts which are arranged in a square shape, the lower ends of the upright posts are provided with walking wheels through an adjusting mechanism, and the upper parts of the four groups of upright posts are fixedly connected with four groups of sliding rods which are horizontally arranged to form a stable lifting platform bracket; the central positions of the four groups of upright posts are provided with bottom plates, the upper parts of the bottom plates are fixedly connected with the base, four corners of the lower part of each bottom plate are respectively provided with a jack, the jacks are vertical to the bottom plates, and the jacks can be supported on the ground when being ejected downwards; the lifting platform is provided with four groups of supporting legs with wheels at the bottom, a square bottom plate is arranged in the middle of the four groups of supporting legs, a base is fixedly arranged on the upper portion of the bottom plate, an electric lifting platform is arranged on the top of the base and is controlled to lift through an external electric control switch, an operator stands on the top of the lifting platform and controls an electric hoist to lift through the electric control switch, and ground materials are lifted to the high altitude through the electric hoist;
pole setting position control unit includes the base, the base top is provided with electric lift platform, electric lift platform top periphery is provided with the rail, through annular slide rail and annular slider coaxial coupling between base and the bottom plate, base outer wall sub-unit connection has the turbine, the bottom plate is provided with the rotary mechanism who drives the turbine rotation, four group's pole settings are close to one side each other and are provided with the spiral mechanism, spiral mechanism drives the base through accomodating the rope and slides from side to side on the slide bar outer wall, electric lift platform top is located the inside perpendicular rigid coupling of rail and has the stand, the stand upper end is connected with the horizontal pole perpendicularly, electric block installs.
2. The housing construction hoist platform of claim 1, wherein the jack is an electro-hydraulic jack.
3. The elevating platform for house building construction as claimed in claim 1, wherein the adjusting mechanism comprises a sleeve, the inner cavity of the sleeve is connected with the outer wall of the vertical rod in a vertical sliding manner, the bottom wall of the inner cavity of the sleeve is connected with the bottom of the vertical rod through an electric push rod, the outer wall of the electric push rod is sleeved with an elastic member, and four independent adjusting mechanisms are used for maintaining the base horizontal when the ground is not parallel.
4. The elevating platform for house building construction as claimed in claim 1, wherein the rotation mechanism comprises two sets of supports vertically fixed on the bottom plate, a worm engaged with the worm gear is connected between the two sets of supports, one end of the worm is connected with a first motor installed on the supports, and the worm gear is driven by the worm to rotate, so as to change the moving direction of the base.
5. The elevating platform for house building construction according to claim 1, wherein the winding mechanism comprises a winding box, a rotating shaft and a reciprocating screw rod are connected in parallel between the left and right side walls of the inner cavity of the winding box, a driving wheel and a winding wheel for winding the rope are connected to the outer wall of the rotating shaft, a second motor mounted on the side wall of the winding box is connected to one end of the rotating shaft, a driven wheel meshed with the driving wheel is connected to the outer wall of the reciprocating screw rod, a moving seat which slides reciprocally in the left and right directions of the inner cavity of the winding box is screwed to the outer wall of the reciprocating screw rod, an opening is formed in the top of the winding box, and the end of the rope, which.
6. The housing construction hoist platform of claim 1, wherein the rope is a steel wire rope.
CN201910232444.0A 2019-03-26 2019-03-26 Elevating platform for housing construction Active CN109914769B (en)

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CN109914769B true CN109914769B (en) 2021-06-01

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111443176A (en) * 2020-05-08 2020-07-24 杭州能尔科技有限公司 Water pollution check out test set is with detecting sensor adjustment mechanism
CN111764613A (en) * 2020-06-19 2020-10-13 四川远大欣程环保工程有限公司 High-altitude equipment installation device in rail traveling area of rail transit engineering and construction method
CN112227683B (en) * 2020-09-17 2022-03-15 安徽国祯生态科技有限公司 Movable operating platform

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4348008A (en) * 1980-05-09 1982-09-07 Mitsuhiro Kishi Lifting apparatus
US4930598A (en) * 1988-07-25 1990-06-05 501 Sky Climber, Inc. Scissors lift apparatus
US20130233646A1 (en) * 2012-03-07 2013-09-12 Carl Boysaw Mobile and Stabilizing Scaffold Apparatus
CN205330131U (en) * 2016-01-06 2016-06-22 王博 Jenny scaffold for building
CN206645744U (en) * 2017-04-19 2017-11-17 厦门华蔚物联网科技有限公司 There is the hoist engine of solidus adjustment function under without stress
CN206737378U (en) * 2017-04-28 2017-12-12 北京城建七建设工程有限公司 A kind of civil engineering operating platform
CN207330230U (en) * 2017-05-26 2018-05-08 贵州路桥集团有限公司 A kind of bridge building materials lifting equipment
CN108751017B (en) * 2018-06-22 2020-02-11 深圳市顶尖电源科技有限公司 Lifting platform convenient to rotate for electronic product production
CN208413746U (en) * 2018-06-26 2019-01-22 中铁十二局集团第二工程有限公司 A kind of subway work transport lifting equipment

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