CN102309390A - Hydraulic lifting mechanism for field operation table - Google Patents
Hydraulic lifting mechanism for field operation table Download PDFInfo
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- CN102309390A CN102309390A CN201110211176A CN201110211176A CN102309390A CN 102309390 A CN102309390 A CN 102309390A CN 201110211176 A CN201110211176 A CN 201110211176A CN 201110211176 A CN201110211176 A CN 201110211176A CN 102309390 A CN102309390 A CN 102309390A
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- eccentric
- guiding post
- guide column
- stepped shaft
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Abstract
The invention relates to a hydraulic lifting mechanism for a field operation table. The hydraulic lifting mechanism is characterized by comprising a base, an inner guide column, an outer guide column, eccentric pulley units, an installing disc, a hydraulic pump and a hydraulic pump switch, wherein the outer guide column and the inner guide column are of square structures; the outer guide column is matched with the inner guide column through the eccentric pulley units in a sliding manner; four groups of eccentric pulley blocks are fixed on the four surfaces of the outer guide column; each group of eccentric pulley block comprises at least three eccentric pulley units; four rail grooves are longitudinally arranged on the four side walls of the inner guide column; each eccentric pulley unit comprises a bearing, a small shaft and an eccentric stepped shaft sleeve; the bearings are matched with the rail grooves in a rolling manner; inner rings of the bearings are fixedly connected with the small shafts; the small shafts are connected with the eccentric stepped shaft sleeves in a sliding manner; the eccentric stepped shaft sleeves are connected with the outer guide column in a sliding manner; and the small shafts and the eccentric stepped shaft sleeves are fastened on the outer guide column. The hydraulic lifting mechanism has the beneficial effects that the eccentric pulley units are adopted to form an S-shaped eccentric pulley block structure which can be contacted with the rail grooves tightly, so that the outer guide column can move stably in lifting without clamping stagnation, and the swinging quantity of a bed surface is very little.
Description
Technical field
The invention belongs to operating-table, relate in particular to a kind of field operations operating-table and use hydraulicefficiency elevation structure.
Background technology
Operating-table in order to satisfy the needs of the different position operations of the wounded, will have lift adjustment amount 250MM more than according to medical apparatus and instruments standard procedures platform as operation treatment platform.Longitudinal oscillation amount, the teeter amount of bed surface were more little good more when work was gone up and down.Therefore elevating mechanism there is very high requirement.And the field operations operating-table is as the indispensable motor-driven armarium of medical aid mechanism; The operating-table difference of using with the fixed hospital operating room is and need loads and unloads repeatedly and transport; Inevitably increase the oscillating quantity of bed surface, required the hydraulic pressure upgrading mechanism of design need possess in light weight, characteristics such as oscillating quantity is little, oscillating quantity easy repair like this.
The mechanical mechanism that the portable operating table that has at present adopts is regulated the position of operating-table, and complex structure, function are more single, can not satisfy the needs of battlefield emergent operation fully, and complicated operation, and reliability is low.
The elevating mechanism that is applied in the field operations operating-table at present mainly contains two kinds, and a kind of is to be made up of interior square tube, outer square tube and nylon sheet, and interior square tube is connected with base, and outer square tube interior four is sidelong nylon sheet and is fixed with screw, and foreign side's pipe box is in the outside of interior square tube.Fix with base in the square tube in hydraulic pump is placed on, piston rod is fixed with outer square tube, promotes outer square tube elevating movement.A kind of is telescoping structure, and inner sleeve has V-type rail, and the V-type of outer sleeve fixed plastics or copper material is led core.Hydraulic pump is placed in the inner sleeve and fixes with base, and piston rod and outer sleeve are fixed, and promotes the outer sleeve elevating movement.Low precision when shortcoming is elevating movement, oscillating quantity is big, and rapid movement is catching phenomenon to occur, quickens suddenly or amplitude is big when stopping, stationarity is lower.Running time, longer wearing and tearing were more severe, and precision also changes thereupon.Simultaneously, interior square tube, outer square tube or inner sleeve, outer sleeve all adopt steel matter, and weight is big, are unfavorable for the frequent carrying under the field condition.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology; And provide a kind of field operations operating-table to use hydraulicefficiency elevation structure; Adopt the eccentric sheave unit combination to become S shape eccentric sheave group structure; Can closely contact with rail groove, make the outer guiding post can easy motion when going up and down, the oscillating quantity that can not occur catching phenomenon and bed surface again be very little.
The present invention is for realizing above-mentioned purpose, and adopt following technical scheme: a kind of field operations operating-table is used hydraulicefficiency elevation structure, it is characterized in that: comprise base, inner guiding post, outer guiding post, eccentric sheave unit, mounting disc, hydraulic pump, hydraulic pump switch; Said outer guiding post and inner guiding post are square structure, and the outer guiding post of upper end fixed installation dish is slidingly matched through the inner guiding post that eccentric sheave unit and bottom are fixed with base, fixing four groups of eccentric sheave groups on four faces of said outer guiding post; At least three eccentric sheave unit of every group of assembly pulley; Vertically be provided with four consistent rail grooves of width on the sidewall of said inner guiding post four sides, said eccentric sheave unit is made up of bearing, little axle, eccentric stepped shaft cover, and said bearing rolls with rail groove and cooperates; Bearing inner race is fixedly connected with little axle; Said little axle and eccentric stepped shaft cover are slidingly connected, and said eccentric stepped shaft cover is slidingly connected with outer guiding post, and said little axle overlaps on the fastening guide pillar outside with eccentric stepped shaft; Said hydraulic pump places in the inner guiding post, fixes with base.
Four rail grooves on the sidewall of said inner guiding post four sides, wherein pair of tracks groove off-center is provided with relatively.
Relative inner guiding post rail groove center, eccentric sheave unit affixed on the said outer guiding post is the left avertence heart and the setting of right avertence heart septum; Promptly; Adjacent two unitary installation directions of eccentric sheave are provided with on the contrary, are combined with three eccentric sheave unit on each rail groove at least, S-shaped eccentric sheave group structure.
The said hydraulic pump that places in the inner guiding post, one of which end and base are fixed, and other end piston rod is connected with outer guiding post, and the hydraulic pump switch is connected with hydraulic pump.
Said eccentric stepped shaft cover offset equals the poor of rail groove width and bearing diameter, and the catch of eccentric stepped shaft cover is provided with the open-minded hole of eccentric direction labelling.
Beneficial effect: adopt the eccentric sheave unit combination to become S type eccentric sheave group structure, can closely contact with rail groove, make the outer guiding post can easy motion when going up and down, the oscillating quantity that can not occur catching phenomenon and bed surface again be very little.Owing to after life-time service bed surface oscillating quantity increases, can finely tune the eccentric position of eccentric stepped shaft cover, eliminate the oscillating quantity of bed surface through rotating the eccentric stepped shaft cover.Inner guiding post pair of tracks groove off-center is provided with, can eliminate since patient weight mainly at the back, the pendulum amount that causes of buttocks.Design inside and outside guide pillar and be the big profiled-cross-section aluminium alloy extrusions of CBR, in light weight, be easy to move.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is a S type eccentric sheave group structural representation;
Fig. 4 is the syndeton sketch map of eccentric sheave unit and interior outer guiding post.
Among the figure: 1, base 2, inner guiding post 2-1, rail groove 3, eccentric sheave unit 3-1, to the right eccentric mounting means 3-2, left eccentric mounting means 4, outer guiding post 5, mounting disc 6, bolt 7, hydraulic pump 8, hydraulic pump switch 9, S type eccentric sheave group 10, bearing 11, little axle 12, plain washer 13, eccentric stepped shaft cover 14, spring washer 15, hex nut 16, the hole labelling slits
The specific embodiment
Specify the specific embodiment of the present invention below in conjunction with preferred embodiment.As shown in the figure, a kind of field operations operating-table is used hydraulicefficiency elevation structure, comprises base 1, inner guiding post 2, outer guiding post 4, eccentric sheave unit 3, mounting disc 5, hydraulic pump 7, hydraulic pump switch 8; Said outer guiding post and inner guiding post are square structure; The outer guiding post of upper end fixed installation dish is slidingly matched through the inner guiding post that eccentric sheave unit and bottom are fixed with base, fixing four groups of S type eccentric sheave groups 9 on four faces of said outer guiding post, at least three eccentric sheave unit of every group of assembly pulley; Vertically be provided with four consistent rail groove 2-1 of width on the sidewall of said inner guiding post four sides; The rail groove width is a bit larger tham bearing diameter, and said eccentric sheave unit is made up of bearing 10, little axle 11, eccentric stepped shaft cover 13, plain washer 12, spring washer 14 and hex nut 15, and said bearing rolls with rail groove and cooperates; Bearing inner race is fixedly connected with little axle; Said little axle is slidingly connected with the eccentric stepped shaft cover, and said eccentric stepped shaft cover is slidingly connected with outer guiding post, through hex nut little axle is led with the eccentric stepped shaft cover is fastening outside; Said hydraulic pump places in the inner guiding post, fixes with base.Four rail grooves on the sidewall of said inner guiding post four sides, wherein pair of tracks groove off-center is provided with relatively, and eccentric distance is a.Affixed relative inner guiding post rail groove center, eccentric sheave unit is left avertence heart 3-2 and right avertence heart 3-1 is provided with at interval on the said outer guiding post; Promptly; Adjacent two unitary installation directions of eccentric sheave are provided with on the contrary; At least be combined with three eccentric sheave unit on each rail groove, S-type eccentric sheave group structure.The said hydraulic pump that places in the inner guiding post, one of which end and base are fixed, and other end piston rod is connected through bolt 6 with outer guiding post, and hydraulic pump switch 8 control hydraulic pumps 7 drive the outer guiding post elevating movement.Said eccentric stepped shaft cover offset b equals the poor of rail groove width and bearing diameter, and said eccentric stepped shaft cover offset equals the poor of rail groove width and bearing diameter, and the catch of eccentric stepped shaft cover is provided with the open-minded hole of eccentric direction labelling 16.
Operation principle:
Trample the hydraulic pump switch during work, the hydraulic pump piston rod drives outer guiding post and slides up and down with respect to inner guiding post, realizes going up and down according to the operation position needs with the fixed operation table top of mounting disc.Opening a plurality of holes with inner guiding post rail groove center relative position on four faces of outer guiding post; The eccentric sheave unit passes the hole and is fastened on four faces; At least three eccentric sheave unit on each face; Form four groups of S shape eccentric sheave groups, the bearing of every group of S shape eccentric sheave group all slides in inner guiding post respective rail groove.Because the rail groove width of inner guiding post is a bit larger tham bearing diameter; Relative inner guiding post rail groove center, eccentric sheave unit is the left avertence heart and the setting of right avertence heart septum; Promptly; Adjacent two unitary installation directions of eccentric sheave are provided with on the contrary, and the eccentric sheave unit bearing of eccentric mounting means closely contacts with rail groove left side wall left, and the eccentric sheave unit bearing of eccentric mounting means closely contacts with the right wall of rail groove to the right; Open-minded hole label table through on the catch of eccentric stepped shaft cover illustrates eccentric direction, and eccentric stepped shaft cover offset b equals the poor of rail groove width and bearing diameter.Adopt this structure, make the outer guiding post can easy motion when going up and down, can combine closely with rail groove, the oscillating quantity of bed surface be very little, catching phenomenon can not occur again.
Eccentric stepped shaft is placed in the outer guiding post areole, can relatively rotate, and little axle is slidingly connected with the eccentric stepped shaft cover, and bearing inner race is fixedly connected with little axle, through hex nut little axle and eccentric stepped shaft is overlapped on the fastening guide pillar outside.Owing to after life-time service bed surface oscillating quantity increases, can finely tune the eccentric position of eccentric stepped shaft cover, eliminate the oscillating quantity of bed surface through rotating the eccentric stepped shaft cover.
Four rail grooves on the sidewall of inner guiding post four sides; Wherein pair of tracks groove off-center is provided with relatively; Eccentric distance is a; Causing the relative hydraulic pump off-centre of being made up of inner guiding post, S shape eccentric sheave group, outer guiding post of elevating mechanism is a, can eliminate since patient weight mainly at the back, the pendulum amount that causes of buttocks.
Inside and outside guide pillar adopts the profiled-cross-section aluminium alloy extrusions, and in light weight, CBR is big.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. a field operations operating-table is used hydraulicefficiency elevation structure, it is characterized in that: comprise base, inner guiding post, outer guiding post, eccentric sheave unit, mounting disc, hydraulic pump, hydraulic pump switch, said outer guiding post and inner guiding post are square structure; The outer guiding post of upper end fixed installation dish is slidingly matched through the inner guiding post that eccentric sheave unit and bottom are fixed with base; Fixing four groups of eccentric sheave groups on four faces of said outer guiding post, at least three eccentric sheave unit of every group of assembly pulley vertically are provided with four consistent rail grooves of width on the sidewall of said inner guiding post four sides; Said eccentric sheave unit is made up of bearing, little axle, eccentric stepped shaft cover; Said bearing rolls with rail groove and cooperates, and bearing inner race is fixedly connected with little axle, and said little axle is slidingly connected with the eccentric stepped shaft cover; Said eccentric stepped shaft cover is slidingly connected with outer guiding post; Said little axle overlaps on the fastening guide pillar outside with eccentric stepped shaft, and said hydraulic pump places in the inner guiding post, fixes with base.
2. field operations operating-table according to claim 1 is used hydraulicefficiency elevation structure, it is characterized in that: four rail grooves on the sidewall of said inner guiding post four sides, wherein pair of tracks groove off-center is provided with relatively.
3. field operations operating-table according to claim 1 and 2 is used hydraulicefficiency elevation structure; It is characterized in that: relative inner guiding post rail groove center, eccentric sheave unit affixed on the said outer guiding post is the left avertence heart and the setting of right avertence heart septum; Promptly; Adjacent two unitary installation directions of eccentric sheave are provided with on the contrary, are combined with three eccentric sheave unit on each rail groove at least, S-shaped eccentric sheave group structure.
4. field operations operating-table according to claim 1 is used hydraulicefficiency elevation structure, it is characterized in that: the said hydraulic pump that places in the inner guiding post, and one of which end and base are fixed, and other end piston rod is connected with outer guiding post, and the hydraulic pump switch is connected with hydraulic pump.
5. field operations operating-table according to claim 1 is used hydraulicefficiency elevation structure, it is characterized in that: said eccentric stepped shaft cover offset equals the poor of rail groove width and bearing diameter, and the catch of eccentric stepped shaft cover is provided with the open-minded hole of eccentric direction labelling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110211176 CN102309390B (en) | 2011-07-26 | 2011-07-26 | Hydraulic lifting mechanism for field operation table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110211176 CN102309390B (en) | 2011-07-26 | 2011-07-26 | Hydraulic lifting mechanism for field operation table |
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| Publication Number | Publication Date |
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| CN102309390A true CN102309390A (en) | 2012-01-11 |
| CN102309390B CN102309390B (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110211176 Expired - Fee Related CN102309390B (en) | 2011-07-26 | 2011-07-26 | Hydraulic lifting mechanism for field operation table |
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| CN (1) | CN102309390B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103462772A (en) * | 2013-09-03 | 2013-12-25 | 苏州柯尔医疗器械有限公司 | Lifting upright column mechanism of surgical bed |
| CN103462765A (en) * | 2013-09-03 | 2013-12-25 | 苏州柯尔医疗器械有限公司 | Lifting system of surgical bed |
| CN106466217A (en) * | 2015-08-10 | 2017-03-01 | 上海卡姆南洋医疗器械股份有限公司 | Therapeutic bed lowering or hoisting gear |
| CN108750980A (en) * | 2018-04-13 | 2018-11-06 | 上海大学 | A kind of platform of lifting and translation |
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| CN2409954Y (en) * | 2000-01-04 | 2000-12-13 | 三丰医疗器材股份有限公司 | Extra-low position operating table changer |
| CN2481685Y (en) * | 2001-04-21 | 2002-03-13 | 江西日月明实业有限公司 | Hydraulic lifting mechanism |
| CN2604556Y (en) * | 2003-03-31 | 2004-02-25 | 乌信梓 | Hydraulic drive mechanism for lifting-lowering dissecting table |
| WO2006036980A1 (en) * | 2004-09-24 | 2006-04-06 | Stryker Corporation | Ambulance cot and hydraulic elevating mechanism therefor |
| CN201127698Y (en) * | 2007-12-25 | 2008-10-08 | 中国人民解放军军事医学科学院卫生装备研究所 | Portable field operations universal operating table |
| CN202211825U (en) * | 2011-07-26 | 2012-05-09 | 中国人民解放军军事医学科学院卫生装备研究所 | Hydraulic lifting mechanism for field operating table |
-
2011
- 2011-07-26 CN CN 201110211176 patent/CN102309390B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2409954Y (en) * | 2000-01-04 | 2000-12-13 | 三丰医疗器材股份有限公司 | Extra-low position operating table changer |
| CN2481685Y (en) * | 2001-04-21 | 2002-03-13 | 江西日月明实业有限公司 | Hydraulic lifting mechanism |
| CN2604556Y (en) * | 2003-03-31 | 2004-02-25 | 乌信梓 | Hydraulic drive mechanism for lifting-lowering dissecting table |
| WO2006036980A1 (en) * | 2004-09-24 | 2006-04-06 | Stryker Corporation | Ambulance cot and hydraulic elevating mechanism therefor |
| CN201127698Y (en) * | 2007-12-25 | 2008-10-08 | 中国人民解放军军事医学科学院卫生装备研究所 | Portable field operations universal operating table |
| CN202211825U (en) * | 2011-07-26 | 2012-05-09 | 中国人民解放军军事医学科学院卫生装备研究所 | Hydraulic lifting mechanism for field operating table |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103462772A (en) * | 2013-09-03 | 2013-12-25 | 苏州柯尔医疗器械有限公司 | Lifting upright column mechanism of surgical bed |
| CN103462765A (en) * | 2013-09-03 | 2013-12-25 | 苏州柯尔医疗器械有限公司 | Lifting system of surgical bed |
| CN106466217A (en) * | 2015-08-10 | 2017-03-01 | 上海卡姆南洋医疗器械股份有限公司 | Therapeutic bed lowering or hoisting gear |
| CN108750980A (en) * | 2018-04-13 | 2018-11-06 | 上海大学 | A kind of platform of lifting and translation |
| CN108750980B (en) * | 2018-04-13 | 2020-01-17 | 上海大学 | Platform capable of lifting and translating |
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| Publication number | Publication date |
|---|---|
| CN102309390B (en) | 2013-07-03 |
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Granted publication date: 20130703 Termination date: 20170726 |