CN201802831U

CN201802831U - Lifting device

Info

Publication number: CN201802831U
Application number: CN2010205535344U
Authority: CN
Inventors: 曾贤德
Original assignee: Moteck Electric Corp
Current assignee: Moteck Electric Corp
Priority date: 2010-09-28
Filing date: 2010-09-28
Publication date: 2011-04-20
Anticipated expiration: 2020-09-28

Abstract

The utility model provides a lifting device which comprises a driving device, a first transmission mechanism and a second transmission mechanism, wherein two sides of a seat body of the driving device are respectively provided with a plurality of roller wheel groups; a first sliding unit is sheathed above the seat body; the first transmission mechanism is provided with a leading screw driven by the driving device, and a telescopic pipe component which is connected on the leading screw by a screw thread and makes linear displacement relative to the leading screw; the top of the telescopic pipe component is fixed with a second sliding unit which is sheathed and connected in the first sliding unit; the second transmission mechanism comprises a third sliding unit which is sheathed and connected outside the first sliding unit, and at least two linking components; one end of each linking component is respectively connected and arranged on the top of the third sliding unit; and the other ends of the linking components pass through the roller wheel groups and then are respectively connected and arranged at the bottom end of the second sliding unit, so that the second and the third sliding units are synchronously driven to do extension or retraction action relative to the first sliding unit by the transmission of the driving device.

Description

Lowering or hoisting gear

Technical field

The utility model relates to the device or the equipment of a kind of beddo, massage chair, the relevant equipment with rehabilitation of body-building or keying of other may command and displacement stroke, particularly its lowering or hoisting gear.

Background technique

The use of lowering or hoisting gear is quite general now, and the lowering or hoisting gear of different types then has different institutions design, the kind of drive, and can use just like beddo, massage chair, the relevant equipment of body-building or other may command open and close and the device of displacement stroke or equipment use with rehabilitation, so user or article can be sling and do the adjustment of adjustable height or different amount.

Moreover, general lowering or hoisting gear is installed in two section type sliding unit inside, be linked to again on beddo or the massage chair, and make these beddos or massage chair can make height, the adjustment of lower position, only the extension total length of this lowering or hoisting gear be no more than two sliding units and, the contraction total length then is not shorter than the length of arbitrary longer sliding unit, the extension that it can be reached and the stroke of contraction have certain narrow limitation, can't satisfy the requirement of higher adjustment spacing on the market, be with, just there is manufacturer to develop 3 stops, the design of multi-section type sliding units such as four-part form, not only have outside longer elongation and the shorter withdrawal amount than the two section type sliding unit, sliding unit stretch out or the travelling speed of withdrawing on also faster, become and be engaged in the extensive and universal application of the sector person so have the lowering or hoisting gear of multi-section type sliding unit.

Yet, existing lowering or hoisting gear is for including driving mechanism, first driving mechanism and second driving mechanism, wherein first driving mechanism has a tubular driving screw and can be subjected to the nut of driving mechanism institute transmission rotation, and in the tubular driving screw, in being respectively equipped with outward, external screw thread, and with external screw thread and nut bolt, and second driving mechanism is to be provided with the first driving mechanism tandem, and have can with the cylindricality driving screw of the internal screw thread bolt transmission of tubular driving screw, can do linear moving with respect to nut and cylindricality driving screw simultaneously for the tubular driving screw, rely on the transmission of driving mechanism again, make each sliding unit produce the start of mutual slippage.

But because of tubular driving screw, the cylindricality driving screw of existing lowering or hoisting gear is making out of the ordinary, and do not have a mutually general function of member, the cost of member can't be effectively reduced, and the inside and outside thread that all is provided with because of the tubular driving screw, not only the processing and fabricating aspect suitable loaded down with trivial details with the difficulty, heat treatment processing procedure after its processing is difficult for obtaining surface of good hardness especially, and often between the internal screw thread of tubular driving screw and cylindricality driving screw, cause friction loss fast, the emptier inconvenience that increases follow-up maintenance cost and use then remains redesign effectively to be solved.

So model utility designer is because above-mentioned problem and disappearance, be to collect related data via in many ways assessment and consider, and utilize the research and development experience for many years of engaging in the industry constantly to study and revise that the beginning is designed the novel birth of this kind lowering or hoisting gear.

Summary of the invention

At the deficiencies in the prior art, the purpose of this utility model is: provide a kind of lowering or hoisting gear, the problem that the member cost that the solution existing structure exists can't reduce.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of lowering or hoisting gear is characterized in that: include drive unit, first driving mechanism and second driving mechanism, wherein:

The pedestal two side places that this drive unit had are provided with plural roller group, and the pedestal top is arranged with first sliding unit;

This first driving mechanism has a driving screw, this driving screw bottom is stretched into pedestal inside and is rotated by the drive unit drive, be bolted with on the driving screw and can it make the telescopic tube assembly of linear displacement relatively, and be fixed with second sliding unit that can be socketed in first sliding unit at the telescopic tube assembly top end;

This second driving mechanism includes the 3rd sliding unit and at least two linkage parts that are socketed on the first sliding unit outside, and each linkage part one end is arranged in two side places, the 3rd sliding unit top respectively, and pass roller group corresponding on the pedestal by the other end of linkage part, be arranged in two side places, the second sliding unit bottom more respectively, make the transmission of drive unit can drive second sliding unit and the 3rd sliding unit synchronously and do the action of stretching out or withdrawing with respect to first sliding unit.

Wherein: the pedestal inside of this drive unit contains gear train, and on pedestal, be combined with motor, and motor one side is provided with and can stretches in the pedestal and be engaged in transmission shaft on the gear train, and parallel with transmission shaft or the vertical setting of the driving screw of first driving mechanism, and the driving screw bottom is located to be equipped with to be engaged in first gear that rotates on the gear train.

Wherein: the telescopic tube assembly of this first driving mechanism has inner sleeve, spiro union portion and can be socketed on the outer sleeve of inner sleeve outside, and with the inner sleeve bottom affixed spiro union portion be spirally connected on the driving screw, and the inner sleeve top end is connected with and can be fixedly coupled seat with second sliding unit, and combination is positioned with default bond on connecting base.

Wherein: the spiro union portion outer peripheral edge place of this telescopic tube assembly is provided with the plural slide block of arranging in the form of a ring, and inside pipe casing is provided with and can be corresponding rail groove with slide block outside, does the action of linear displacement with respect to driving screw for the guiding inner sleeve.

Wherein: the two side places, the second sliding unit bottom of this first driving mechanism are provided with the plural fixed base that can supply linkage part one termination to establish respectively, the two side places, the 3rd sliding unit top of second driving mechanism then are respectively equipped with the plural fixed base that can supply another termination of linkage part to establish, utilize the fixed base of second sliding unit to spur linkage part respectively, do reverse telescopic displacement action by linkage part by the fixed base that roller group corresponding on the drive unit spurs the 3rd sliding unit synchronously again.

Wherein: the 3rd sliding unit bottom of this second driving mechanism is combined with a base plate, and then is provided with the plural location piece that is the L type in the 3rd sliding unit side edge.

Wherein: the roller group of this drive unit is a belt pulley, and it then is a belt that the linkage part of second driving mechanism cooperates roller group.

Wherein: the roller group of this drive unit is gear, sprocket wheel or idle pulley, and it then is tooth belt, chain, steel disc or rope that the linkage part of second driving mechanism cooperates roller group.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be: drive unit can drive the driving screw of first driving mechanism institute tool, make the telescopic tube assembly that is spirally connected on the driving screw its linear displacement relatively, and drive the second fixing sliding unit of telescopic tube assembly top end with respect to doing the slippage action in first sheathed above the pedestal sliding unit, rely on place, second sliding unit, two side bottoms to connect the roller group that the linkage part of establishing passes drive unit pedestal two side places simultaneously, be arranged in two side places, the 3rd sliding unit top respectively by two linkage parts again, can utilize linkage part to spur the 3rd sliding unit is made reverse telescopic displacement with respect to the first sliding unit outside action synchronously, this kind mode adopts existing on the market standard size product to produce, two driving screw structural designs compared to existing lowering or hoisting gear, can reduce integrated member weight and have light-weighted effect, and can simplified structure and the processing and the heat treatment expense of saving each element, to reach the reduction of cost effectively.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is a side cutaway view of the present utility model;

Fig. 4 is the stereo appearance figure before the utility model preferred embodiment is used;

Side cutaway view when Fig. 5 is the utility model preferred embodiment use;

Fig. 6 is the stereo appearance figure after the utility model preferred embodiment is used.

Description of reference numerals: 1-drive unit; The 11-pedestal; The 131-transmission shaft; The 12-gear train; The 14-roller group; The 13-motor; 15-first sliding unit; 2-first driving mechanism; The 21-driving screw; The 2321-slide block; The 211-bearing; The 233-outer sleeve; 22-first gear; 2331-rail groove; The 23-telescopic tube assembly; The 24-connecting base; The 231-inner sleeve; 25-second sliding unit; The 232-spiro union portion; The 251-fixed base; 3-second driving mechanism; 31-the 3rd sliding unit; The 33-base plate; The 311-fixed base; The 34-location piece; The 32-linkage part; The 4-bond.

Embodiment

For reaching above-mentioned purpose and structure, technological means that the utility model adopted and effect thereof, drawing now illustrates in detail that with regard to preferred embodiment of the present utility model its structure is as follows with function, profit is understood fully.

See also Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, be respectively stereo appearance figure of the present utility model, three-dimensional exploded view and side cutaway view, find out by knowing among the figure, the utility model includes the stereo appearance figure before drive unit 1, first driving mechanism 2, second driving mechanism 3 and preferred embodiment are used, wherein:

This drive unit 1 has pedestal 11, and contain gear train 12 in pedestal 11 inside, and pedestal 11 belows are combined with motor 13, its motor 13 1 sides are provided with and can stretch in the pedestal 11 and be engaged in transmission shaft 131 on the gear train 12, and pedestal 11 2 side places are provided with relative plural roller group 14, are arranged with first sliding unit 15 in pedestal 11 tops again.

This first driving mechanism 2 has a driving screw 21 that is parallel to transmission shaft 131 on the motor 13, and pedestal 11 inside of drive unit 1 are stretched in driving screw 21 bottoms, and utilize bearing 211 to locate, and place, driving screw 21 bottoms is equipped with engageable first gear 22 that rotates that is on gear train 12, can be driven in driving screw 21 by 12 engagements of the 131 driven gear groups of the transmission shaft on the motor 13 to be a rotation; In addition, be bolted with telescopic tube assembly 23 on the driving screw 21 with inner sleeve 231, spiro union portion 232 and outer sleeve 233, and be bolted on the driving screw 21 with the affixed spiro union portion 232 in inner sleeve 231 bottoms, and spiro union portion 232 outer peripheral edge places are provided with the plural slide block 2321 of arranging shape in the form of a ring, and outer sleeve 233 inside of inner sleeve 231 outside institutes socket are provided with and can be corresponding rail groove 2331 with slide block 2321, do the linear displacement action for guiding inner sleeve 231 with respect to driving screw 21; Again, inner sleeve 231 top ends can utilize a pin member (not shown) to be fixed on the connecting base 24, and be fixed with second sliding unit 25 that can be socketed in first sliding unit 15 in connecting base 24 top ends, and two side places, second sliding unit, 25 bottoms are provided with relative plural fixed base 251.

This second driving mechanism 3 reaches at least two linkage part 32 for including the 3rd sliding unit 31, and be socketed on first sliding unit, 15 outsides with the 3rd sliding unit 31, and two side places, the 3rd sliding unit 31 tops are provided with relative plural fixed base 311, and each linkage part 32 1 end is for being arranged in respectively on the fixed base 311, and after passing roller group 14 corresponding on the pedestal 11 by the other end of linkage part 32, the plural fixed base 251 that is arranged in second sliding unit, 25 bottoms more respectively is a location, for inner sleeve 231 during with respect to driving screw 21 telescopic displacements, can utilize the fixed base 251 of second sliding unit, 25 2 sides to spur respectively, spur synchronously respectively in the fixed base 311 of the 3rd sliding unit 31 2 sides by plural roller group 14 by two linkage parts 32 again and do the action of opposite direction telescopic displacement in linkage part 32; In addition, the 3rd sliding unit 31 bottoms are combined with a base plate 33, and then are provided with the plural location piece 34 that is the L type in the 3rd sliding unit 31 side edge.

Moreover, the plural roller group 14 of above-mentioned drive unit 1 can be belt pulley, gear, pattern such as sprocket wheel or idle pulley, the linkage part 32 of 3 tools of second driving mechanism cooperates roller group 14 then to can be belt, tooth belt, chain, pattern such as steel disc or rope, it only need provide the transmission of drive unit 1, can drive synchronously in second sliding unit 25, the 3rd sliding unit 31 does to stretch out with respect to first sliding unit 15 or the slippage action of withdrawing gets final product, contained by the utility model so can reach the form of aforementioned effect such as, simple and easy modification of this kind and equivalent structure change, all should in like manner be contained in the claim of the present utility model, close and give Chen Ming.

Please consult Fig. 2 simultaneously, Fig. 4, Fig. 5, shown in Figure 6, be respectively three-dimensional exploded view of the present utility model, stereo appearance figure before preferred embodiment is used, stereo appearance figure after side cutaway view during use and the use, find out by knowing among the figure, connecting base 24 can be the framework pattern in this preferred embodiment, and be positioned at connecting base 24 rear sides in conjunction with being positioned with the bond 4 that can be liquid crystal display, plural location piece 34 by the 3rd sliding unit 31 side edge utilizes the interlocking means of fixation to be installed in beddo again, massage chair, the equipment of body-building and rehabilitation or other may command open and close and the device or the equipment use of displacement stroke only are a kind of preferable enforcement state, it is not the feature place of the main demand of the utility model, also can adopt variety of way to implement, but this kind mode can rely on the transmission of drive unit 1, drive synchronously in second sliding unit 25, the 3rd sliding unit 31 does to stretch out with respect to first sliding unit 15 or the slippage of withdrawing is moved, and bond 4 done the adjustment of adjustable height, and each first sliding unit 15, second sliding unit 25, the 3rd sliding unit 31 can be respectively the hollow, rectangular pipe of different size.

When the utility model when using, can utilize transmission shaft 131 on the motor 13 to drive and be a rotation in gear train 12, and rely on gear train 12 to drive to rotate synchronously in first gear 22 and driving screw 21, at this moment, the telescopic tube assembly 23 that is spirally connected on the driving screw 21 will be done the linear start that protrudes out, the mode of its telescopic tube assembly 23 actions utilizes the affixed spiro union portion 232 in inner sleeve 231 bottoms to be bolted on the driving screw 21, can drive spiro union portion 232 and inner sleeve 231 when driving screw 21 is rotated and do the linear displacement action, do to stretch out the slippage action and can drive the second fixing sliding unit 25 of connecting base 24 top ends with respect to first sliding unit 15 by inner sleeve 231, and can utilize the plural fixed base 251 at two side places, second sliding unit, 25 bottoms to spur respectively in linkage part 32, spur synchronously in the plural fixed base 311 at two side places, the 3rd sliding unit 31 tops by roller group 14 corresponding on the pedestal 11 by two linkage parts 32 again and do reverse telescopic displacement action, and then make the 3rd sliding unit 31 can do to stretch out the action of slippage with respect to first sliding unit 15; Otherwise, also can rely on transmission shaft 131 counter-rotatings on the motor 13, make second sliding unit 25 and the 3rd sliding unit 31 do the slippage action of withdrawal, and bond 4 is done the adjustment of adjustable height with respect to first sliding unit 15.

In addition, the above only is the utility model preferred embodiment, non-so promptly limit to claim of the present utility model, the utility model lowering or hoisting gear is for can be installed in beddo, massage chair, the equipment of body-building and rehabilitation or other may command open and close and the device or the equipment of displacement stroke use, and the motor 13 of this drive unit 1 also can be incorporated on the side plate of pedestal 11, its transmission shaft 131 be can be equipped with the motor gear (not shown) on a worm screw or the main shaft, and with the driving screw 21 vertical settings of first driving mechanism 2, can rotate synchronously by first gear 22 that transmission shaft 131 driven gear groups 12 are engaged in driving screw 21 bottoms, make its spiro union portion 232 and inner sleeve 231 drive the slippage action that second sliding unit 25 stretches out with respect to first sliding unit, 15 works, and can utilize the fixed base 251 of second sliding unit, 25 bottoms to spur in linkage part 32, spur the action of making reverse telescopic displacement in the fixed base 311 on the 3rd sliding unit 31 tops synchronously by the roller group on the pedestal 11 14 by linkage part 32 again, make second sliding unit 25 and the 3rd sliding unit 31 do the slippage action of stretching out with respect to first sliding unit 15, this kind utilizes linkage part 32 to be subjected to the pulling of second sliding unit 25, and spur the mode of the 3rd sliding unit 31 synchronously with respect to first sliding unit, 15 telescopic displacements, adopt existing on the market standard size product can assemble production, and utilize the tubular driving screw compared to existing lowering or hoisting gear, the structural design of cylindricality driving screw bolt transmission, can reduce the weight of integrated member and have light-weighted effect, and simple in structure can conveniently production, and can simplify overall structure, and the processing and the heat treatment expense of saving each element, and then the reduction that can effectively reach cost.

More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.

Claims

1. lowering or hoisting gear is characterized in that: include drive unit, first driving mechanism and second driving mechanism, wherein:

2. lowering or hoisting gear according to claim 1, it is characterized in that: the pedestal inside of this drive unit contains gear train, and on pedestal, be combined with motor, and motor one side is provided with and can stretches in the pedestal and be engaged in transmission shaft on the gear train, and parallel with transmission shaft or the vertical setting of the driving screw of first driving mechanism, and the driving screw bottom is located to be equipped with to be engaged in first gear that rotates on the gear train.

3. lowering or hoisting gear according to claim 1, it is characterized in that: the telescopic tube assembly of this first driving mechanism has inner sleeve, spiro union portion and can be socketed on the outer sleeve of inner sleeve outside, and with the inner sleeve bottom affixed spiro union portion be spirally connected on the driving screw, and the inner sleeve top end is connected with and can be fixedly coupled seat with second sliding unit, and combination is positioned with default bond on connecting base.

4. lowering or hoisting gear according to claim 3, it is characterized in that: the spiro union portion outer peripheral edge place of this telescopic tube assembly is provided with the plural slide block of arranging in the form of a ring, and inside pipe casing is provided with and can be corresponding rail groove with slide block outside, does the action of linear displacement with respect to driving screw for the guiding inner sleeve.

5. lowering or hoisting gear according to claim 1, it is characterized in that: the two side places, the second sliding unit bottom of this first driving mechanism are provided with the plural fixed base that can supply linkage part one termination to establish respectively, the two side places, the 3rd sliding unit top of second driving mechanism then are respectively equipped with the plural fixed base that can supply another termination of linkage part to establish, utilize the fixed base of second sliding unit to spur linkage part respectively, do reverse telescopic displacement action by linkage part by the fixed base that roller group corresponding on the drive unit spurs the 3rd sliding unit synchronously again.

6. lowering or hoisting gear according to claim 1 is characterized in that: the 3rd sliding unit bottom of this second driving mechanism is combined with a base plate, and then is provided with the plural location piece that is the L type in the 3rd sliding unit side edge.

7. lowering or hoisting gear according to claim 1 is characterized in that: the roller group of this drive unit is a belt pulley, and it then is a belt that the linkage part of second driving mechanism cooperates roller group.

8. lowering or hoisting gear according to claim 1 is characterized in that: the roller group of this drive unit is gear, sprocket wheel or idle pulley, and it then is tooth belt, chain, steel disc or rope that the linkage part of second driving mechanism cooperates roller group.