CN107986137A - One kind tree room auxiliary system - Google Patents
One kind tree room auxiliary system Download PDFInfo
- Publication number
- CN107986137A CN107986137A CN201711197692.3A CN201711197692A CN107986137A CN 107986137 A CN107986137 A CN 107986137A CN 201711197692 A CN201711197692 A CN 201711197692A CN 107986137 A CN107986137 A CN 107986137A
- Authority
- CN
- China
- Prior art keywords
- plate
- loading
- auxiliary system
- tree room
- sunpender
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
-
- 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
-
- 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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Automation & Control Theory (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The present invention relates to one kind to set room auxiliary system, its drip irrigation device:Including arranged on setting, room outside is upper, encloses the loading plate equipped with guardrail;Base station on ground;Load carrier between the base station and the loading plate, for bearing article or people;It is used for the elevating mechanism for driving the load carrier lifting on the base station or loading plate;And it is opened in the port being pierced by the loading plate for article or people.The tree room auxiliary system of the present invention when in use, will can be transferred on the loading plate on tree room by opening elevating mechanism compared with heavy articles or handicapped occupant.
Description
Technical field
The present invention relates to tree room technical field, more particularly to a kind of tree room auxiliary system.
Background technology
With the development of economy and society, miscellaneous building emerges in an endless stream, wherein just including the tree room risen in recent years, tree
House owner will be to set as bearing system, and house is built in the tree, full of rustic charm.
At present, tree room is generally built in the place for having certain altitude apart from ground, it will usually builds miscellaneous ladder
Or stair connection ground and tree room, so as to facilitate occupant to pass in and out tree room.
But if when occupant is needed on some heavier article carryings to tree room, can be very inconvenient, meanwhile, such as
If occupant is handicapped, it can more increase the difficulty in disengaging tree room, in this case, remain to be further improved.
The content of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of tree room auxiliary system, can facilitate
Tree room is passed in and out compared with heavy articles and handicapped occupant.
The present invention above-mentioned purpose technical scheme is that:
One kind tree room auxiliary system, including room outside is upper, encloses the loading plate equipped with guardrail arranged on setting;Base station on ground;
Load carrier between the base station and the loading plate, for bearing article or people;Arranged on the base station or carrying
It is used for the elevating mechanism for driving the load carrier lifting on plate;And it is opened on the loading plate and is pierced by for article or people
Port.
Using above-mentioned technical proposal, the load carrier of setting can carry heavier article or handicapped inhabitation
Person, and elevating mechanism can drive load carrier to lift, when driving article or the people's rising on load carrier, people or article can
To be transferred to from the port on loading plate on the loading plate in tree room, so as to convenient compared with heavy articles and handicapped residence
Firmly shifted between tree room and ground so that tree room has more the market competitiveness.
It is of the invention further to set:The load carrier includes:Polylith between the base station and the loading plate
Riser;Slidingtype is connected to the support plate on the riser;And the guard assembly in the support plate.
Using above-mentioned technical proposal, support plate can be used for bearing article or people, and branch can be driven by opening elevating mechanism
Fagging is moved up and down along riser, and the guard assembly set, there is certain protective effect to the article in support plate or people, from
And reduce unnecessary loss.
It is of the invention further to set:The guard assembly includes:It is detachable to be installed on phase on the support plate loading end
Symmetrical baffle;It is articulated with the railing of the wherein one baffle both sides;It is used to fix the railing on another baffle
So that the railing and the perpendicular fixing piece of the baffle.
Using above-mentioned technical proposal, after person to be used enters in support plate, railing can be rotated so that railing is not hinged
End is in contact with another baffle, meanwhile, it can further limit railing using fixing piece so that whole guard assembly is more
Firmly, the safety of user is then ensured.
It is of the invention further to set:Level is interspersed with L shaped plate on the inside of the baffle, and the L shaped plate passes through the baffle
One end side end face is provided with the spill spin block for limiting the L shaped plate, the L shaped plate other end and the loading end of the support plate
It is in contact.
Using above-mentioned technical proposal, after handicapped person enters in support plate, L shaped plate can be extracted out from baffle,
In this way, handicapped people can be very easily sitting in L shaped plate;The design is simple, tends to hommization, while can also carry
The experience sense of high user, has certain market value.
It is of the invention further to set:The elevating mechanism includes:Batten arranged on the support plate bottom;It is vertical to be arranged on institute
State screw between base station and the loading plate, being pierced by from the bar end;And for driving the screw rotating
First actuator.
Using above-mentioned technical proposal, the first actuator is opened, screw can be driven to rotate, screw, which rotates, can drive bar
Strip moves support plate lifting, and so as to facilitate the article or people disengaging tree room in support plate, this is simple in structure, easily operated.
It is of the invention further to set:The elevating mechanism includes:The support base being installed on the loading plate loading end;If
Sunpender on the support base;And it is assemblied on the sunpender and the corresponding platform sling in port position, the platform sling
On multiple fixed pulleys are installed, be arranged with drawstring on the fixed pulley, the drawstring end is through the port and in the drawing
Rope end portion is fixed with hook, is provided with the support plate and links up with the link to match with described, use is provided with the sunpender
It is used to drive rotating second driving of the winding wheel in being additionally provided with the winding wheel for winding or discharging the drawstring, the sunpender
Part.
Using above-mentioned technical proposal, the second actuator is opened, winding wheel can be driven to rotate, winding wheel is in rotating process
In can drive drawstring wind or release, so as to control the lifting of support plate.
It is of the invention further to set:Turntable is installed, the turntable, which is equipped with, to be used to lock on the loading plate loading end
The locking piece of the turntable, the support base are assemblied on the turntable loading end.
Using above-mentioned technical proposal, after hook is taken away from link, drawstring is taken out out of port, at this time, hook can
To hang other cargos that some support plates can not carry, and the turntable set can drive the rotation of whole support base and sunpender
Turn so that linking up with the cargo of suspension can very easily be hoisted on loading plate from ground, so as to further expand this liter
The use scope of descending mechanism.
It is of the invention further to set:The locking piece includes:The swingle being hinged at the disk edge;Arranged on described
The arc panel being adapted on loading plate with the turntable;It is clouded in card slot mutually chimeric with the swingle on the arc panel.
Using above-mentioned technical proposal, after the completion for the treatment of that the position of turntable is adjusted, swingle can be turned in card slot, card slot
Can be mutually chimeric with swingle, so as to limit the rotation of turntable.
It is of the invention further to set:The sunpender is articulated with the edge of the support base loading end, the support base
Loading end horizontal sliding is connected with the tilted block for adjusting angle of inclination between the sunpender and the loading plate, the inclination
Block is equipped with the locating part for being used for limiting the tilted block.
Using above-mentioned technical proposal, when the article height of support plate carrying is higher, sunpender can be rotated, it is to be regulated to hang well
After the height of bar, tilted block can be slided so that the inclined plane of tilted block and the outer wall of sunpender are inconsistent, so as to support lifting
Bar, then recycles locating part to fix tilted block, in this way, sunpender can be adapted to the article of different height in support plate.
It is of the invention further to set:The port edge is hinged with the cover board for blocking the port.
Using above-mentioned technical proposal, when using support plate, it can rotate the cover and block port, prevent people or article not
Carefully fallen down from port, the security in tree room is further improved, so as to reduce unnecessary loss.
In conclusion the invention has the advantages that:
By setting support plate, screw and the first actuator, open the first actuator can drive article in support plate or
People is transferred on loading plate from base station, so as to reduce amount of labour when occupant carries article, while also for action not
Just provide a convenient;And the guard assembly set, further the article in support plate can be protected with people;
Sunpender, drawstring and the second actuator of setting, when drawstring is connected with support plate, opens the second actuator, then may be used
To drive support plate to lift, article is facilitated to pass in and out tree room with handicapped person;When the cargo for needing carrying support plate to carry
When, drawstring can be taken out out of port, the hook on drawstring can hang other cargos to be handled on ground, using setting
Cargo, can very easily be transferred on loading plate, so as to further increase by the cooperation of the turntable and the second actuator put
Add the use scope of the elevating mechanism.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the embodiment of the present invention 1;
Fig. 2 is the enlarged drawing at A in Fig. 1;
Fig. 3 is the position relationship schematic diagram of spill spin block in the embodiment of the present invention 1;
Fig. 4 is the overall structure diagram of the embodiment of the present invention 2;
Fig. 5 is the enlarged drawing at B in Fig. 4;
Fig. 6 is the enlarged drawing at C in Fig. 4.
Reference numeral:1st, room is set;2nd, loading plate;21st, guardrail;22nd, port;23rd, cover board;3rd, base station;4th, riser;41st, prop up
Fagging;5th, baffle;51st, railing;511st, U-shaped block;52nd, L shaped plate;53rd, spill spin block;6th, screw;61st, first gear;62nd, the first electricity
Machine;63rd, second gear;7th, support base;71st, sunpender;72nd, platform sling;73rd, fixed pulley;74th, drawstring;75th, link up with;76th, link;77、
Winding wheel;78th, the second motor;8th, turntable;81st, swingle;82nd, arc panel;83rd, card slot;9th, tilted block;91st, inserted link;92nd, insert
Hole.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification for not creating contribution after this specification is read, but as long as in this hair
All protected in bright right be subject to Patent Law.
Embodiment 1:One kind tree room auxiliary system, as depicted in figs. 1 and 2, is provided with loading plate 2 in the outside in tree room 1, holds
Guardrail 21 is installed on support plate 2, and port 22 is further opened with loading plate 2, port 22 can pass through for some articles or people;
Cover board 23 is also hinged with the edge of port 22, cover board 23 can block port 22, prevent people or article imprudence from port
22 fall down;Base station 3 is provided with the ground, load carrier is provided between base station 3 and loading plate 2, and load carrier is mainly used to
Bearing article or people;In addition, being additionally provided with elevating mechanism on base station 3 or loading plate 2, elevating mechanism can drive carrying
Mechanism lifts so that article or people on load carrier can be directly entered from port 22 in tree room 1.
Load carrier includes:The polylith riser 4 being fixed on base station 3, the top of riser 4 are mutually filled with the bottom of loading plate 2
Match somebody with somebody, support plate 41 is connected with along the extending direction slidingtype of riser 4 between riser 4, support plate 41 is mainly used to bearing article
Or people;Meanwhile baffle 5 is respectively and fixedly provided with 41 opposite sides therein of support plate, two block baffles 5 are parallel to each other, and one of
Railing 51 is hinged with the both sides of the edge of baffle 5, and is provided with the both sides of the edge of another block baffle 5 for non-floating rail 51
Fixing piece, can when fixing piece is flexible U-shaped block 511, railing 51 and mutually chimeric U-shaped block 511 in the present embodiment
Railing 51 is firmly fixed very much so that railing 51 surrounds support plate 41 together with baffle 5, so as to protect support plate
People or article on 41.
Elevating mechanism includes:It is fixed on 41 bottom of support plate and exposes the batten 42 of 41 edge of support plate;It is vertically-mounted
Screw 6 on base station 3;And for driving rotating first actuator of screw 6, and screw 6 is worn from the end of batten 42
Go out, the first actuator includes:The first motor 62 on base station 3;The close first gear 61 being set on screw 6;With
And second gear 63 of the key connection on 62 output shaft of the first motor, first gear 61 are intermeshed with second gear 63.
When needing to use support plate 41, the first motor 62 can be first opened, passes through first gear 61 and second gear 63
Driving screw 6 rotates, and the rotation of screw 6 can drive batten 42 to lift, so as to drive support plate 41 to lift;When the first motor 62
Support plate 41 is driven to when moving at port 22, it is possible to easily heavier article or people are transferred on loading plate 2, so that
Manpower can be saved.
As shown in Figures 2 and 3, L shaped plate 52 is interspersed with the inner side level of baffle 5, and L shaped plate 52 passes through the one of baffle 5
Side end face is provided with the spill spin block 53 for limiting L shaped plate 52, and 52 other end of L shaped plate connects with the loading end of support plate 41
Touch;Spill spin block 53 can block L shaped plate 52, at the same time it can also which by rotating spill spin block 53, L shaped plate 52 is disassembled;Work as row
When dynamic inconvenience person needs to use support plate 41, L shaped plate 52 can be extracted out so that handicapped person can be sitting in L shaped plate 52
On, so as to further protect handicapped person, while the experience sense of user can also be improved.
Embodiment 2:As shown in Figures 4 to 6, the difference with embodiment 1 is, elevating mechanism can also be as follows:Bag
Include the support base 7 on 2 loading end of loading plate;Sunpender 71 on support base 7;And be assemblied on sunpender 71 with
The corresponding platform sling 72 in 22 position of port;At rainy day, platform sling 71 can be kept off in the top of support plate 41, so as to reduce
Rainwater drenches article or the situation of people;At least two fixed pulleys 73 are installed on platform sling 72, and drawing is connected with fixed pulley 73
Rope 74, the one end of drawstring 74 pass through port 22, and pass through 74 end of drawstring of port 22 to be fixed with hook 75, and support plate 41
On be provided with and 75 links 76 that match of hook.
In addition, being provided with the quantity winding wheel 77 consistent with 73 quantity of fixed pulley on sunpender 71, winding wheel 77 is mainly used
To wind or discharge drawstring 74, and it is also equipped with being used to drive rotating second actuator of winding wheel 77 on sunpender 71, second drives
Moving part can be the second motor 78 in the present embodiment;The second motor 78 is opened, winding wheel 77 can be driven to rotate, winding wheel 77
During rotating drawstring 74 can be driven to wind or discharge, so as to control the lifting of support plate 41.
Detachable turntable 8 is installed on the loading end of loading plate 2, support base 7 is assemblied in the loading end of turntable 8
On, and the locking piece for fixing turntable 8 is additionally provided with turntable 8, locking piece includes:It is hinged on the rotation of 8 edge of turntable
Bar 81;The arc panel 82 being fixed on by screw or bolt on loading plate 2, arc panel 82 is around the outside for being located at turntable 8, and arc
Some card slots 83 mutually chimeric with swingle 81 are further opened with plate 82;When rotating swingle 81, swingle 81 can be with card
83 phase of groove is fitted together to, so as to fix turntable 8.
When other cargos for needing that some support plates 41 cannot be carried are transferred on loading plate 2,75 can will be linked up with
Separate, hook 75 is taken out with drawstring 74 out of port 22 so that hook 75 hooks cargo, or will by rope with link 76
Cargo is pinioned, then is hooked by hook 75;After hook 75 hooks cargo, the second motor 78 can be opened, cargo is sling, together
When, swingle 81 is taken away out of card slot 83, is rotated further by turntable 8, drives support base 7 to rotate together so that cargo can be very square
Being transferred on loading plate 2 just, then can further increase the use scope of sunpender 71.
Wherein, sunpender 71 is hinged at the top edge of support base 7, and slidingtype company is gone back on the top end face of support base 7
Tilted block 9 is connected to, 9 inclined end face of tilted block and 71 outer wall of sunpender are inconsistent, are also installed on a side end face of tilted block 9
There is the inserted link 91 of L-shaped, inserted link 91 can twitch up and down, and be further opened with the top end face of support base 7 multiple with 91 phase of inserted link
Matched jack 92, jack 92 are linearly arranged.
When the article height that support plate 41 carries is inconsistent, sunpender 71 and carrying can be changed by rotating sunpender 71
Angle of inclination between 2 loading end of plate, after the height of good sunpender 71 to be regulated, can slide tilted block 9 so that tilted block 9
Inclined plane and the outer wall of sunpender 71 it is inconsistent, be then directed at the position of inserted link 91 and jack 92 again, press down on inserted link 91, make
Obtain inserted link 91 to be inserted into jack 92, so as to tilted block 9 be fixed, at the same time so that sunpender 71 is limited in support base 7 by firm
On.
Claims (10)
1. one kind tree room auxiliary system, it is characterised in that including:Arranged on tree room(1)On outside, enclose equipped with guardrail(21)Carrying
Plate(2);
Base station on ground(3);
Arranged on the base station(3)With the loading plate(2)Between, load carrier for bearing article or people;
Arranged on the base station(3)Or loading plate(2)The upper elevating mechanism for being used to drive the load carrier lifting;And
It is opened in the loading plate(2)On the port that is pierced by for article or people(22).
2. a kind of tree room auxiliary system according to claim 1, it is characterised in that the load carrier includes:Arranged on institute
State base station(3)With the loading plate(2)Between polylith riser(4);Slidingtype is connected to the riser(4)On support plate
(41);And arranged on the support plate(41)On guard assembly.
3. a kind of tree room auxiliary system according to claim 2, it is characterised in that the guard assembly includes:Detachably
Formula is installed on the support plate(41)Symmetrical baffle on loading end(5);It is articulated with wherein one baffle(5)The column of both sides
Bar(51);Arranged on another baffle(5)It is upper to be used to fix the railing(51)So that the railing(51)With the baffle(5)
Perpendicular fixing piece.
A kind of 4. tree room auxiliary system according to claim 3, it is characterised in that the baffle(5)Inner side is horizontal interspersed
There is L shaped plate(52), the L shaped plate(52)Through the baffle(5)One end side end face be provided with for limiting the L shaped plate
(52)Spill spin block(53), the L shaped plate(52)The other end and the support plate(41)Loading end be in contact.
5. a kind of tree room auxiliary system according to claim 1, it is characterised in that the elevating mechanism includes:Arranged on institute
State support plate(41)The batten of bottom(42);The base station is arranged on vertically(3)With the loading plate(2)Between, from the bar
Plate(42)The screw that end is pierced by(6);And for driving the screw(6)Rotating first actuator.
6. a kind of tree room auxiliary system according to claim 1, it is characterised in that the elevating mechanism includes:It is installed on
The loading plate(2)Support base on loading end(7);Arranged on the support base(7)On sunpender(71);And it is assemblied in institute
State sunpender(71)The upper and port(22)The corresponding platform sling in position(72), the platform sling(72)On multiple fixed pulleys are installed
(73), the fixed pulley(73)On be arranged with drawstring(74), the drawstring(74)End passes through the port(22)And described
Drawstring(74)End is fixed with hook(75), the support plate(41)On be provided with and the hook(75)The link to match
(76), the sunpender(71)On be provided with for winding or discharge the drawstring(74)Winding wheel(77), the sunpender(71)
On be additionally provided with for driving the winding wheel(77)Rotating second actuator.
A kind of 7. tree room auxiliary system according to claim 6, it is characterised in that the loading plate(2)Pacify on loading end
Equipped with turntable(8), the turntable(8)It is equipped with and is used to lock the turntable(8)Locking piece, the support base(7)It is assemblied in
The turntable(8)On loading end.
8. a kind of tree room auxiliary system according to claim 7, it is characterised in that the locking piece includes:It is hinged on institute
State turntable(8)The swingle of edge(81);Arranged on the loading plate(2)The upper and turntable(8)The arc panel being adapted
(82);It is clouded in the arc panel(82)The upper and swingle(81)Mutually chimeric card slot(83).
A kind of 9. tree room auxiliary system according to claim 7, it is characterised in that the sunpender(71)It is articulated with the branch
Support seat(7)The edge of loading end, the support base(7)Loading end horizontal sliding be connected with for adjusting the sunpender(71)
With the loading plate(2)Between angle of inclination tilted block(9), the tilted block(9)It is equipped with and is used to limit the tilted block
(9)Locating part.
A kind of 10. tree room auxiliary system according to claim 1, it is characterised in that the port(22)Edge is hinged with
For blocking the port(22)Cover board(23).
Priority Applications (1)
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CN201711197692.3A CN107986137B (en) | 2017-11-25 | 2017-11-25 | A kind of tree room auxiliary system |
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CN201711197692.3A CN107986137B (en) | 2017-11-25 | 2017-11-25 | A kind of tree room auxiliary system |
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CN107986137A true CN107986137A (en) | 2018-05-04 |
CN107986137B CN107986137B (en) | 2019-07-12 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070169996A1 (en) * | 2006-01-20 | 2007-07-26 | Blue Lewis J | Powered lift platform |
US7281607B1 (en) * | 2005-03-10 | 2007-10-16 | King Tool & Manufacturing Company, Inc. | Elevating device |
CN102101622A (en) * | 2010-09-20 | 2011-06-22 | 江苏申锡建筑机械有限公司 | Fixed rotatable well conveying device |
US20130214224A1 (en) * | 2006-04-03 | 2013-08-22 | Thomas L. Byers | Lifting system |
CN205652981U (en) * | 2016-04-25 | 2016-10-19 | 山东大明胜开实业有限公司 | Ball screw transmission formula elevator |
-
2017
- 2017-11-25 CN CN201711197692.3A patent/CN107986137B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7281607B1 (en) * | 2005-03-10 | 2007-10-16 | King Tool & Manufacturing Company, Inc. | Elevating device |
US20070169996A1 (en) * | 2006-01-20 | 2007-07-26 | Blue Lewis J | Powered lift platform |
US20130214224A1 (en) * | 2006-04-03 | 2013-08-22 | Thomas L. Byers | Lifting system |
CN102101622A (en) * | 2010-09-20 | 2011-06-22 | 江苏申锡建筑机械有限公司 | Fixed rotatable well conveying device |
CN205652981U (en) * | 2016-04-25 | 2016-10-19 | 山东大明胜开实业有限公司 | Ball screw transmission formula elevator |
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CN107986137B (en) | 2019-07-12 |
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