CN204258529U - The structure-improved of electric pushrod - Google Patents
The structure-improved of electric pushrod Download PDFInfo
- Publication number
- CN204258529U CN204258529U CN201420735687.9U CN201420735687U CN204258529U CN 204258529 U CN204258529 U CN 204258529U CN 201420735687 U CN201420735687 U CN 201420735687U CN 204258529 U CN204258529 U CN 204258529U
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- Prior art keywords
- jack
- post
- electric pushrod
- pedestal
- improved
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 230000004308 accommodation Effects 0.000 claims description 13
- 125000003003 spiro group Chemical group 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000006378 damage Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model provides a kind of structure-improved of electric pushrod, it is that the pedestal inside of putter body institute tool is provided with gear train and stop mechanism, and present external body be combined with can for driving in gear train in the drive division rotated, and gear train is linked with the driving screw of transmission mechanism, driving screw is bolted with a telescoping tube group, and the driven gear centre jack-post of gear train institute tool is for be coaxially equipped with driving screw, and be formed with friction portion at the outer surface of jack-post adjacent to driven gear place, and jack-post is socketed with and can presses on for friction portion the unilateral bearing that its inner ring carries out friction formation reverse brake state, and stop mechanism can supply the thrust bearing of block in unilateral bearing inner ring, just thrust bearing can be utilized to coordinate unilateral bearing to carry out carrying large axial thrust load and high impact loads, make the putter body situation that unlikely recurring structure damages or destroys under the situation of high rotating speed and variable load and moment impact, more can guarantee integrally-built stability.
Description
Technical field
The utility model relates to a kind of structure-improved of electric pushrod, for being socketed with unilateral bearing and thrust bearing on the jack-post of espespecially putter body gear train, when drive division drive gear set drive driving screw be linked in telescoping tube group do Linear transmission displacement time, just thrust bearing can be utilized to coordinate unilateral bearing to carry out carrying large axial thrust load and high impact loads, make the unlikely recurring structure damage of putter body or destroy, more can guarantee integrally-built stability.
Background technology
Suitable general of the use of push rod device now, and the push rod device of different types also has different institutions to design the mode with transmission, and can be applicable to beddo, massage armchair, body-building equipment relevant to rehabilitation use, and in the process that general push rod device is transmitted at motor power, its stretched sheathed tube can be driven to elongate or shorten displacement, make beddo, massage armchair etc. can do the adjustment of adjustable height or different angles.
Moreover, the mode of current push rod device start on the market, mostly utilize the worm drive worm gear of motor to drive in screw rod in rotating, and do Linear transmission displacement by screw linkage in stretched sheathed tube, do to rise or decline with the connecting rod or carrier base that promote elevating mechanism link, when worm engaging drives screw rod and stretched sheathed tube in worm gear, the strength of its transmission is very large, so when push rod device stops start, be easy to because the impact of load causes screw rod to reverse, connecting rod or carrier base to be produced decline fast and cannot immediately brake, therefore dealer is just had to install brake apparatus additional in push rod device, push rod device is enable to stop reaching during start the function of lock brake, separately, when push rod device is subject to load variations or the moment impact function influence of external device (ED), stretched sheathed tube just ejection can cause the large axial thrust load of carrying and high impact loads on screw rod, the situation making putter body be easy to recurring structure under the situation of high rotating speed and variable load and moment impact to damage or destroy, cannot immediately brake and carry axial thrust load so push rod device how effectively will can be solved and impact the disappearance damage of easy recurring structure, being and needing to engage in this journey dealer institute and desire most ardently the key point studying improvement.
Utility model content
Therefore, novel practical new design people is because above-mentioned existing problem and disappearance, be collect related data via assessment in many ways and consideration, and utilize the research and development experience for many years engaging in the industry constantly to study and amendment, begin to design the structure improved novel birth of this kind of electric pushrod.
For achieving the above object, the technical solution adopted in the utility model is:
A structure-improved for electric pushrod, is characterized in that: include putter body and stop mechanism, wherein:
This putter body has pedestal, and the gear train with at least one driven gear is provided with at the accommodation space of pedestal inside, and driven gear centre is provided with jack-post, at least one friction portion is formed with adjacent to driven gear place at jack-post outer surface, jack-post is socketed with and can presses on for friction portion the unilateral bearing that its inner ring carries out friction formation reverse brake state, and pedestal combined outside have can for drive in gear train in rotate drive division, and the driving screw of transmission mechanism is coaxially equipped with at the jack-post of driven gear, and driving screw is bolted with the telescoping tube group doing Linear transmission displacement towards pedestal outside,
This stop mechanism is arranged in the accommodation space of putter body, and have to be socketed on driven gear jack-post can for block in unilateral bearing inner ring in order to carry the thrust bearing of axial thrust load and impact.
In the structure-improved of described electric pushrod: the accommodation space lower opening place of this putter body pedestal is combined with the first linking part.
In the structure-improved of described electric pushrod: the accommodation space internal face of this putter body pedestal is respectively equipped with location notch close to opening part that is central and below, and be positioned with respectively in location notch and can wear for driven gear upper and lower jack-post the rolling bearing and unilateral bearing that form socket location.
In the structure-improved of described electric pushrod: this stop mechanism is provided with the linking sleeve being positioned at location notch, and be axially formed for the embedding slot of unilateral bearing location, and bottom embedding slot, can be axially formed with the recess stopper slot that can supply thrust bearing location in linking sleeve inner.
In the structure-improved of described electric pushrod: the embedding slot internal face place of this linking sleeve is formed with the plural number that can support for unilateral bearing periphery place and holds rib, and be provided with plural through hole at embedding slot adjacent to the lateral surfaces at stopper slot place.
In the structure-improved of described electric pushrod: the drive division that this putter body pedestal combines has motor, and be provided with at motor side place the driving shaft being inserted in pedestal and being engaged on gear train.
In the structure-improved of described electric pushrod: the telescopic tube of this putter body has telescopic tube, and the spiro union portion be bolted on driving screw is combined with by telescopic tube side, and telescopic tube outer cover is connected to outer tube, be combined with the second linking part at telescopic tube relative to the opposite side place of spiro union portion.
In the structure-improved of described electric pushrod: the thrust bearing of this stop mechanism includes at least two relative track plates and is positioned between each two adjacent track plates and utilizes retainer to form spaced plural rolling element.
Compared with prior art, the advantage adopting the utility model of technique scheme to have is: when putter body is subject to affecting of external device (ED) load variations or moment impact effect, thrust bearing can be utilized to coordinate unilateral bearing to carry out the large axial thrust load of carrying and high impact loads, putter body unlikely recurring structure under high rotating speed and variable load and moment impact situation is made to damage or destroy, more can guarantee integrally-built stability, and this unilateral bearing and thrust bearing are general standard specification product, just do not need to change original specification or develop different moulds for it, effectively to reduce the cost needed for manufacture.The utility model also can utilize thrust bearing block in the inner ring of unilateral bearing, and coordinate linking sleeve reach to thrust loading and shock loading, this kind of thrust bearing be connected sleeve and be arranged at pedestal inside, putter body space outerpace can not be taken, to improve mechanism design and the elasticity in utilization, and there is by thrust bearing the characteristic of low frictional resistance, more smooth and easy when unilateral bearing and driven gear are rotated.
Accompanying drawing explanation
Fig. 1 is stereo appearance figure of the present utility model;
Fig. 2 is three-dimensional exploded view of the present utility model;
Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model;
Fig. 4 is side cutaway view of the present utility model;
Fig. 5 is the partial enlarged drawing of the utility model Fig. 4;
Fig. 6 is the partial perspective cutaway view of the utility model thrust bearing.
Description of reference numerals: 1-putter body; 10-accommodation space; 101-opening; 11-pedestal; 111-first linking part; 112-location notch; 113-rolling bearing; 114-unilateral bearing; 1141-inner ring; 12-gear train; 121-driven gear; 122-jack-post; 1220-standing block hole; 123-friction portion; 13-drive division; 131-motor; 132-driving shaft; 14-transmission mechanism; 141-driving screw; 15-telescoping tube group; 151-telescopic tube; 152-spiro union portion; 1521-screw; 1522-slide block; 153-outer tube; 1531-rail groove; 154-second linking part; 2-stop mechanism; 21-thrust bearing; 211-track plate; 212-rolling element; 213-retainer; 22-sleeve; 220-bores a hole; 221-embedding slot; 222-stopper slot; 2221-holds rib; 2222-through hole.
Embodiment
For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, just preferred embodiment of the present utility model of hereby drawing illustrates that its structure is as follows with function in detail, understands completely in order to do profit.
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, be respectively stereo appearance figure of the present utility model, three-dimensional exploded view, the three-dimensional exploded view at another visual angle, side cutaway view, the partial enlarged drawing of Fig. 4 and the partial perspective cutaway view of thrust bearing, find out by knowing in figure, the utility model includes putter body 1 and stop mechanism 2, wherein:
This putter body 1 has the pedestal 11 of hollow, and the accommodation space 10 of upper and lower two side place tool openings 101 is formed in pedestal 11 inside, and opening 101 place be arranged in below accommodation space 10 utilizes two shells (figure does not indicate) of pedestal 11 to be combined with the first linking part 111 in the mode of chimeric fixing, and accommodation space 10 internal face of pedestal 11 is respectively equipped with the location notch 112 of terrace shape close to opening 101 place that is central and below, and be positioned with a rolling bearing 113 and unilateral bearing 114 respectively in two location notchs 112.
Moreover, gear train 12 is provided with in the accommodation space 10 of pedestal 11, its gear train 12 having at least one is the driven gear (as worm gear) 121 be made up of plastic cement material, but when practical application, gear train 12 also can have the plural driven gear 121 engaging each other transmission, and the jack-post 122 protruding out driven gear about 121 two side surface place is provided with in driven gear 121 centre, and the jack-post 122 of driven gear 121 upper and lower is arranged in respectively in rolling bearing 113 and the endoporus (not indicating in figure) of unilateral bearing 114 to be formed to be socketed and locates, and the empty internal of jack-post 122 has standing block hole 1220, and be formed with at least one terrace shape friction portion 123 of protruding at jack-post 122 outer surface adjacent to driven gear 121 place, separately, pedestal 11 combined outside has a drive division 13, and be provided with at the motor 131 side place of drive division 13 tools to be inserted in pedestal 11 to be engaged in and gear train 12 drive it be the driving shaft (as worm screw) 132 of rotation, and it is perpendicular or parallel in the driving screw 141 of motor 131 this gear train 12 to be linked with transmission mechanism 14.
But, driving screw 141 lower end of above-mentioned transmission mechanism 14 is be combined into one in the standing block hole 1220 being coaxially arranged in driven gear 121 jack-post 122, and on driving screw 141, be bolted with the telescoping tube group 15 elongating or shortening displacement towards pedestal 11 outside as Linear transmission, and telescoping tube group 15 includes telescopic tube 151, spiro union portion 152 and outer tube 153, and the screw 1521 of the spiro union portion 152 empty internal institute tool that telescopic tube 151 side place combines is for being bolted on driving screw 141, its telescopic tube 151 outer cover is connected to an outer tube 153, and at spiro union portion 152 and the plural slide block 1522 outer tube 153 is provided with in corresponding slide displacement and rail groove 1531, elongate or shorten the action of displacement as Linear transmission relative to driving screw 141 for telescopic tube 151, again, telescopic tube 151 is combined with the second linking part 154 relative to the opposite side place of spiro union portion 152.
This stop mechanism 2 is arranged in the accommodation space 10 of putter body 1 pedestal 11, and there is the thrust bearing 21 at location notch 112 place be positioned at below pedestal 11, and thrust bearing 21 includes about at least two relatively and the track plate 211 be socketed on the jack-post 122 below driven gear 121 and be positioned between each two adjacent track plates 211 and utilize retainer 213 to form spaced plural rolling element 212, and rolling element 212 can be ball, cylinder roller, conical roller, needle roller or other kenels.
But, above-mentioned stop mechanism 2 is provided with the linking sleeve 22 in the location notch 112 that is positioned below pedestal 11, and be axially formed with opening upwards in linking sleeve 22 inside and can insert for unilateral bearing 114 embedding slot 221 being formed and be socketed and locate, and bottom embedding slot 221, be axially formed with the recess stopper slot 222 can located for thrust bearing 21 and the perforation 220 being positioned at stopper slot 222 centre and can penetrating for the jack-post 122 below driven gear 121, and the embedding slot 221 internal face place being connected sleeve 22 has and can hold rib 2221 for the plural number being held in unilateral bearing 114 periphery place formation close-fitting fixing, and be provided with plural through hole 2222 at embedding slot 221 adjacent to the lateral surfaces at stopper slot 222 place, during as unilateral bearing 114 need be dismantled, hand tool can be utilized to be inserted into through hole 2222 interior also force unilateral bearing 114 is released, be beneficial to dismounting or change operation.
Putter body 1 of the present utility model is for can be applicable to external device (ED) (as beddo, massage armchair, body-building and the relevant equipment of rehabilitation etc.), elevating mechanism or miscellaneous equipment use, and by the first linking part 111 of pedestal 11, second linking part 154 of telescoping tube group 15 utilizes bolt, the components such as alignment pin are incorporated into connecting rod or the carrier base of external device (ED) with articulated manner, when the motor 131 of drive division 13 drives that meshed gears group 12 is rotated on driving shaft 132, driving screw 141 turn of transmission mechanism 14 can be driven to pass spiro union portion 152 linear displacement in telescoping tube group 15 by gear train 12, and be linked in telescopic tube 151 and extend outer tube 153 elongates or shortens displacement action as Linear transmission towards pedestal 11 outside, rely on the second linking part 154 to promote on the connecting rod or carrier base of external device (ED) simultaneously, just can do the adjustment of adjustable height or different angles to external device (ED) according to actual demand.
When drive division 13 drive rise in telescoping tube group 15 time, the jack-post 122 of gear train 12 can be utilized to drive inner ring 1141 in unilateral bearing 114, make the inner ring 1141 of unilateral bearing 114 can make single direction (as clockwise or counter clockwise direction) relative to fixing outer shroud to rotate, when drive division 13 stops driving in telescoping tube group 15, because putter body 1 is subject to external device (ED) deadweight or external force impact, the spiro union portion 152 of telescoping tube group 15 just can produce reversion by the related gear train 12 that makes on driving screw 141 of ejection downwards, and cause telescoping tube group 15 that the disappearance that cannot immediately brake may occur to decline fast, so, inner ring 1141 side edge that the friction portion 123 of the utility model gear train 12 just can be utilized to press on unilateral bearing 114 is carried out friction and is played braking action and form reverse brake state, to prevent from occurring because driving screw 141 reversion causes connecting rod or carrier base to produce situation about declining.
In addition, when putter body 1 is subject to external device (ED) load variations or moment impact function influence, the spiro union portion 152 of its telescoping tube group 15 just can ejection on the driving screw 141 of transmission mechanism 14, and pressed on inner ring 1141 side edge of unilateral bearing 114 with friction portion 123 by the driven gear 121 of gear train 12, just thrust bearing 21 block of stop mechanism 2 can be utilized in the inner ring 1141 of unilateral bearing 114, make thrust bearing 21 that unilateral bearing 114 can be coordinated to carry out the large axial thrust load of carrying and high impact loads, make putter body 1 unlikely situation having structural damage or destruction under the situation of high rotating speed and variable load and moment impact, also linking sleeve 22 can be utilized to be socketed on unilateral bearing 114 and the Modular Structure Design on thrust bearing 21, not only can be convenient to assembling fixing, and can be promoted it carry large axial thrust load and the intensity of high impact loads, more can guarantee integrally-built stability, also itself there is by thrust bearing 21 characteristic of low frictional resistance, it is more smooth and easy when unilateral bearing 114 and driven gear 121 are rotated, to be arranged at pedestal 11 inner with being connected sleeve 22 for the thrust bearing 21 of this kind of stop mechanism 2, just the space of putter body 1 outside can not be taken, to improve integrated model design and the elasticity in utilization, and this unilateral bearing 114 is general standard specification product with thrust bearing 21, just do not need the original specification of change putter body 1 or develop different moulds for it, so effectively can reduce the cost needed for manufacture, have more the competitiveness of product.
More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection range of the present utility model.
Claims (8)
1. a structure-improved for electric pushrod, is characterized in that: include putter body and stop mechanism, wherein:
This putter body has pedestal, and the gear train with at least one driven gear is provided with at the accommodation space of pedestal inside, and driven gear centre is provided with jack-post, at least one friction portion is formed with adjacent to driven gear place at jack-post outer surface, jack-post is socketed with and can presses on for friction portion the unilateral bearing that its inner ring carries out friction formation reverse brake state, and pedestal combined outside have can for drive in gear train in rotate drive division, and the driving screw of transmission mechanism is coaxially equipped with at the jack-post of driven gear, and driving screw is bolted with the telescoping tube group doing Linear transmission displacement towards pedestal outside,
This stop mechanism is arranged in the accommodation space of putter body, and have to be socketed on driven gear jack-post can for block in unilateral bearing inner ring in order to carry the thrust bearing of axial thrust load and impact.
2. the structure-improved of electric pushrod according to claim 1, is characterized in that: the accommodation space lower opening place of this putter body pedestal is combined with the first linking part.
3. the structure-improved of electric pushrod according to claim 1, it is characterized in that: the accommodation space internal face of this putter body pedestal is respectively equipped with location notch close to opening part that is central and below, and be positioned with respectively in location notch and can wear for driven gear upper and lower jack-post the rolling bearing and unilateral bearing that form socket location.
4. the structure-improved of electric pushrod according to claim 3, it is characterized in that: this stop mechanism is provided with the linking sleeve being positioned at location notch, and be axially formed for the embedding slot of unilateral bearing location, and bottom embedding slot, can be axially formed with the recess stopper slot that can supply thrust bearing location in linking sleeve inner.
5. the structure-improved of electric pushrod according to claim 4, it is characterized in that: the embedding slot internal face place of this linking sleeve is formed with the plural number that can support for unilateral bearing periphery place and holds rib, and be provided with plural through hole at embedding slot adjacent to the lateral surfaces at stopper slot place.
6. the structure-improved of electric pushrod according to claim 1, is characterized in that: the drive division that this putter body pedestal combines has motor, and is provided with at motor side place the driving shaft being inserted in pedestal and being engaged on gear train.
7. the structure-improved of electric pushrod according to claim 1, it is characterized in that: the telescopic tube of this putter body has telescopic tube, and the spiro union portion be bolted on driving screw is combined with by telescopic tube side, and telescopic tube outer cover is connected to outer tube, be combined with the second linking part at telescopic tube relative to the opposite side place of spiro union portion.
8. the structure-improved of electric pushrod according to claim 1, is characterized in that: the thrust bearing of this stop mechanism includes at least two relative track plates and is positioned between each two adjacent track plates and utilizes retainer to form spaced plural rolling element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420735687.9U CN204258529U (en) | 2014-11-28 | 2014-11-28 | The structure-improved of electric pushrod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420735687.9U CN204258529U (en) | 2014-11-28 | 2014-11-28 | The structure-improved of electric pushrod |
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CN204258529U true CN204258529U (en) | 2015-04-08 |
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CN201420735687.9U Expired - Fee Related CN204258529U (en) | 2014-11-28 | 2014-11-28 | The structure-improved of electric pushrod |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105815934A (en) * | 2016-05-12 | 2016-08-03 | 乐歌人体工学科技股份有限公司 | Rotation stopping structure of hoistable table leg |
CN109038940A (en) * | 2018-08-08 | 2018-12-18 | 东莞市特姆优传动科技有限公司 | A kind of efficient high thrust solar panels electric pushrod |
CN109073046A (en) * | 2016-04-21 | 2018-12-21 | L & P 产权管理公司 | Component is quickly exited for furniture of swaying |
-
2014
- 2014-11-28 CN CN201420735687.9U patent/CN204258529U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109073046A (en) * | 2016-04-21 | 2018-12-21 | L & P 产权管理公司 | Component is quickly exited for furniture of swaying |
CN109073046B (en) * | 2016-04-21 | 2021-11-09 | L & P 产权管理公司 | Quick-release assembly for reclining furniture |
CN105815934A (en) * | 2016-05-12 | 2016-08-03 | 乐歌人体工学科技股份有限公司 | Rotation stopping structure of hoistable table leg |
CN105815934B (en) * | 2016-05-12 | 2018-11-23 | 乐歌人体工学科技股份有限公司 | Go up and down the spline structure of table leg |
CN109038940A (en) * | 2018-08-08 | 2018-12-18 | 东莞市特姆优传动科技有限公司 | A kind of efficient high thrust solar panels electric pushrod |
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C14 | Grant of patent or utility model | ||
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 |
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CF01 | Termination of patent right due to non-payment of annual fee |