CN201147445Y - Lifting/lowering device for blood-drawing chair - Google Patents
Lifting/lowering device for blood-drawing chair Download PDFInfo
- Publication number
- CN201147445Y CN201147445Y CNU2007201300916U CN200720130091U CN201147445Y CN 201147445 Y CN201147445 Y CN 201147445Y CN U2007201300916 U CNU2007201300916 U CN U2007201300916U CN 200720130091 U CN200720130091 U CN 200720130091U CN 201147445 Y CN201147445 Y CN 201147445Y
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- CN
- China
- Prior art keywords
- upper frame
- low pressure
- electric pushrod
- lowering
- pressure electric
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- 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.)
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Abstract
The utility model discloses a lifting device of a blood collecting chair, comprising a base plate installed on the ground, an upper frame connected with a seat of the blood collecting chair, and a lifting mechanism for driving the upper frame to lift relatively to the base plate. The lifting mechanism comprises an electric drive push pole of low-voltage and a gas spring. The axial lead of the electric drive push pole of low-voltage and the axial lead of the gas spring are parallelly installed in the horizontal direction. The electric drive push pole of low-voltage has the characters of safe use, low voice, good environmental condition and less external disturbance. The gas spring is always in the state of being compressed; when the electric drive push pole of low-voltage extends outwards, the gas spring plays a role of power assistance for the electric drive push pole of low-voltage, and when the electric drive push pole of low-voltage retracts inwards, the gas spring can eliminate gaps among each component of the electric drive push pole so that the falling process of the upper frame is more stable.
Description
Technical field
This utility model relates to a kind of lowering or hoisting gear that is used to adjust the seat of blood sampling chair with respect to the height on ground, so that make blood donor's the requirement for height of body adaptation blood separator.
Background technology
The lowering or hoisting gear of existing blood sampling chair generally includes two types, and a class is a mechanical transmission-type, and another kind of is hydraulic driven.Mechanical transmission-type adopts gear drive, and complex structure, profile heaviness, noise are big, stationarity is poor.Hydraulic driven is comparatively steadily, power-mass ratio is big, however fluid easily in carrying because tilt or vibrations and spilling, and Hydraulic Elements cost an arm and a leg.
Summary of the invention
The technical problems to be solved in the utility model provide a kind of safe in utilization, noise is low, the lowering or hoisting gear of the blood sampling chair that operates steadily.
The technical solution adopted in the utility model is: a kind of lowering or hoisting gear of the chair of taking a blood sample, comprise and be arranged on ground chassis, the upper frame that is connected with the seat of blood sampling chair, be used to drive the elevating mechanism of described upper frame with respect to the lifting of described chassis, described elevating mechanism comprises low pressure electric pushrod and air spring, the both ends of described low pressure electric pushrod rotate with described chassis and upper frame respectively and are connected, the both ends of described air spring also rotate with described chassis and upper frame respectively and are connected, and the axial line of the axial line of described low pressure electric pushrod and air spring parallels setting in the horizontal direction.
The lowering or hoisting gear of this blood sampling chair also comprises main lift plate and the auxiliary force plate that is used to connect described chassis and described upper frame, described main plane, lift plate place and described auxiliary force plate place plane parallel, and described main lift plate be positioned at described auxiliary force plate directly over, described chassis, upper frame, main lift plate, auxiliary force plate constitute parallel-crank mechanism.
The axial line of described low pressure electric pushrod parallels with a diagonal of described parallel-crank mechanism.Its implication is, the axial line of described low pressure electric pushrod is crossing with the rotational axis line of described main lift plate and described upper frame, the axial line of described low pressure electric pushrod also intersects with the rotational axis line on described auxiliary force plate and described chassis, and the axial line of described low pressure electric pushrod is perpendicular to the rotational axis line of described main lift plate and described upper frame; The axial line of described air spring is crossing with the rotational axis line of described main lift plate and described upper frame, the axial line of described air spring also intersects with the rotational axis line on described auxiliary force plate and described chassis, and the axial line of described air spring is perpendicular to the rotational axis line of described main lift plate and described upper frame.
Described low pressure electric pushrod has output shaft, and the end of described output shaft rotates with described upper frame and is connected.Described low pressure electric pushrod also comprises motor, be arranged on the worm gear on the output revolving shaft of described motor, worm screw with described worm wheel, with coaxial second bevel gear of fixedlying connected of described worm screw, first bevel gear of matching with described second bevel gear, with the coaxial leading screw of fixedlying connected of described first bevel gear, be set in the sleeve of described leading screw external peripheral surface, the external peripheral surface of described leading screw has external screw thread, described telescopic inner circumferential surface has the female thread that matches with the external screw thread of the external peripheral surface of described leading screw, and described output shaft is fixedly installed on the described sleeve; Described low pressure electric pushrod also comprises the fairlead that is set in the described leading screw outside, the axial line of described fairlead and the axial line of described leading screw coincide, offer the groove that extends along the direction of axis line of described fairlead on the inwall of described fairlead, have protuberance on the described sleeve, what described protuberance can slide along the direction of axis line of described fairlead is plugged in the described groove.
The driving voltage of described motor is 24 volts.
Described air spring has piston rod, and the end of described piston rod rotates with described upper frame and is connected.Described air spring is in confined state all the time.Described air spring also comprises the piston of air bag, the described air bag of compression, and described piston rod is fixedly installed on the described piston.
Because the employing of technique scheme the utlity model has following advantage: the low pressure electric pushrod has can self-locking, operate steadily, safe in utilization, noise is low, environment for use good, disturbs few characteristics to external world; Air spring is in confined state all the time, when the low pressure electric pushrod is protruding, air spring plays the effect of power-assisted to the low pressure electric pushrod, when the low pressure electric pushrod is inwardly withdrawn, air spring can be eliminated the gap between each parts in the low pressure electric pushrod, makes that the decline process of upper frame is more steady.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a left view of the present utility model;
Fig. 3 is the schematic diagram of low pressure electric pushrod;
Fig. 4 is the schematic diagram of air spring.
Wherein, 1, the chassis, 11, horn ring, 12, electric control box, 13, guidance panel;
2, upper frame, 3, main lift plate, 4, the auxiliary force plate;
5, elevating mechanism,
6, low pressure electric pushrod, 61, output shaft, 62, sleeve, 63, leading screw, 64, first bevel gear, 65, second bevel gear, 66, motor, 67, worm gear, 68, worm screw, 69, fairlead, 621, protuberance, 691, groove;
7, air spring, 71, piston rod, 72, piston, 73, air bag.
The specific embodiment
Below in conjunction with accompanying drawing and concrete embodiment this utility model is described in further detail: a kind of lowering or hoisting gear of the chair of taking a blood sample, comprise be arranged on ground chassis 1, with the upper frame 2 that is connected of seat of blood sampling chair, be used to drive the elevating mechanism 5 of described upper frame 2 with respect to 1 lifting of described chassis.
Four bights on described chassis 1 are provided with horn ring 11, and described horn ring 11 makes described chassis 1 to move freely on ground.Also be provided with electric control box 12 and guidance panel 13 on the described chassis 1, in order to operate described elevating mechanism 5.
The lowering or hoisting gear of this blood sampling chair also comprises main lift plate 3 and the auxiliary force plate 4 that is used to connect described chassis 1 and described upper frame 2, described main lift plate plane, 3 place and described auxiliary force plate 4 place plane parallel, and described main lift plate 3 be positioned at described auxiliary force plate 4 directly over, described chassis 1, upper frame 2, main lift plate 3, auxiliary force plate 4 constitutes parallel-crank mechanism, four rotating shafts of this parallel-crank mechanism are respectively the turning cylinders on described main lift plate 3 and described chassis 1, the turning cylinder of described main lift plate 3 and described upper frame 2, the turning cylinder on described auxiliary force plate 4 and described chassis 1, the turning cylinder of described auxiliary force plate 4 and described upper frame 2, and plane, described main lift plate 3 place is meant two formed planes of pivot center on the described main lift plate 3, plane, described auxiliary force plate 4 place is meant two formed planes of pivot center on the described auxiliary force plate 4.Described main lift plate 3, that why auxiliary force plate 4 adopts is tabular rather than shaft-like, is because tabular more firm.
Described elevating mechanism 5 comprises low pressure electric pushrod 6 and air spring 7, the both ends of described low pressure electric pushrod 6 rotate with described chassis 1 and upper frame 2 respectively and are connected, the both ends of described air spring 7 also rotate with described chassis 1 and upper frame 2 respectively and are connected, and the axial line of the axial line of described low pressure electric pushrod 6 and air spring 7 parallels setting in the horizontal direction.
The axial line of the axial line of described low pressure electric pushrod 6 and air spring 7 parallels with a diagonal of described parallel-crank mechanism, the axial line axial line crossing with the rotational axis line of described upper frame 2 with described main lift plate 3, described low pressure electric pushrod 6 that is described low pressure electric pushrod 6 also intersects with the rotational axis line of described auxiliary force plate 4 with described chassis 1, and the axial line of described low pressure electric pushrod 6 is perpendicular to the rotational axis line of described main lift plate 3 with described upper frame 2; The axial line of described air spring 7 is crossing with the rotational axis line of described upper frame 2 with described main lift plate 3, the axial line of described air spring 7 also intersects with the rotational axis line of described auxiliary force plate 4 with described chassis 1, and the axial line of described air spring 7 is perpendicular to the rotational axis line of described main lift plate 3 with described upper frame 2.
Described low pressure electric pushrod 6 has output shaft 61, and the end of described output shaft 61 rotates with described upper frame 2 and is connected.Described low pressure electric pushrod 6 also comprises motor 66, be arranged on the worm gear 67 on the output revolving shaft of described motor 66, the worm screw 68 of matching with described worm gear 67, with described worm screw 68 coaxial second bevel gears 65 of fixedlying connected, first bevel gear 64 of matching with described second bevel gear 65, with described first bevel gear, the 64 coaxial leading screws of fixedlying connected 63, be set in the sleeve 62 of described leading screw 63 external peripheral surfaces, the external peripheral surface of described leading screw 63 has external screw thread, the inner circumferential surface of described sleeve 62 has the female thread that matches with the external screw thread of the external peripheral surface of described leading screw 63, and described output shaft 61 is fixedly installed on the described sleeve 62; Described low pressure electric pushrod 6 also comprises the fairlead 69 that is set in described leading screw 63 outsides, the axial line of the axial line of described fairlead 69 and described leading screw 63 coincides, offer the groove 691 that extends along the direction of axis line of described fairlead 69 on the inwall of described fairlead 69, has protuberance 621 on the described sleeve 62, what described protuberance 621 can slide along the direction of axis line of described fairlead 69 is plugged in the described groove 691, thus when described leading screw 63 rotates, described sleeve 62 can slide along the direction of axis line of described leading screw 63, described output shaft 61 is fixedly installed on the described sleeve 62, can stretch by described relatively low pressure electric pushrod 6.
The driving voltage of described motor 66 is 24 volts, and the relative human body of this voltage is a safe voltage.This kind low pressure electric pushrod 6 has can self-locking, operate steadily, safe in utilization, noise is low, environment for use good, disturbs few characteristics to external world.
Described air spring 7 has piston rod 71, and the end of described piston rod 71 rotates with described upper frame 2 and is connected.Described air spring 7 is in confined state all the time.Described air spring 7 also comprises the piston 72 of air bag 73, the described air bag 73 of compression, and described piston rod 71 is fixedly installed on the described piston 72.Described air spring 7 is in confined state all the time, make that described piston rod 71 is protruding all the time, when described output shaft 61 protruding, described upper frames 2 rise (in from dotted portion to the solid line part) referring to Fig. 1, described piston rod 71 is identical with the direction of the power of output shaft 61, form and make a concerted effort, 7 pairs of described low pressure electric pushrods 6 of described air spring play the effect of power-assisted; When described output shaft 61 is inwardly withdrawn, when described upper frame 2 descends (in from the solid line part to dotted portion) referring to Fig. 1, described piston rod 71 is opposite with the direction of the power of described output shaft 61,71 pairs of described output shafts 61 of described piston rod play inhibition, eliminate the gap between each parts in the described low pressure electric pushrod 6, make that the decline process of described upper frame 2 is more steady.
Claims (10)
1, a kind of lowering or hoisting gear of the chair of taking a blood sample, comprise and be arranged on ground chassis (1), the upper frame (2) that is connected with the seat of blood sampling chair, be used to drive the elevating mechanism (5) of described upper frame (2) with respect to described chassis (1) lifting, it is characterized in that: described elevating mechanism (5) comprises low pressure electric pushrod (6) and air spring (7), the both ends of described low pressure electric pushrod (6) rotate with described chassis (1) and upper frame (2) respectively and are connected, the both ends of described air spring (7) also rotate with described chassis (1) and upper frame (2) respectively and are connected, and the axial line of the axial line of described low pressure electric pushrod (6) and air spring (7) parallels setting in the horizontal direction.
2, the lowering or hoisting gear of blood sampling chair according to claim 1, it is characterized in that: the lowering or hoisting gear of this blood sampling chair also comprises main lift plate (3) and the auxiliary force plate (4) that is used to connect described chassis (1) and described upper frame (2), described main lift plate (3) plane, place and described auxiliary force plate (4) place plane parallel, and described main lift plate (3) be positioned at described auxiliary force plate (4) directly over
Described chassis (1), upper frame (2), main lift plate (3), auxiliary force plate (4) constitute parallel-crank mechanism.
3, the lowering or hoisting gear of blood sampling chair according to claim 2 is characterized in that: the axial line of described low pressure electric pushrod (6) parallels with a diagonal of described parallel-crank mechanism.
4, the lowering or hoisting gear of blood sampling chair according to claim 3, it is characterized in that: the axial line of described low pressure electric pushrod (6) is crossing with the rotational axis line of described upper frame (2) with described main lift plate (3), the axial line of described low pressure electric pushrod (6) also intersects with the rotational axis line of described auxiliary force plate (4) with described chassis (1), and the axial line of described low pressure electric pushrod (6) is perpendicular to the rotational axis line of described main lift plate (3) with described upper frame (2);
The axial line of described air spring (7) is crossing with the rotational axis line of described upper frame (2) with described main lift plate (3), the axial line of described air spring (7) also intersects with the rotational axis line of described auxiliary force plate (4) with described chassis (1), and the axial line of described air spring (7) is perpendicular to the rotational axis line of described main lift plate (3) with described upper frame (2).
5, the lowering or hoisting gear of blood sampling chair according to claim 1 is characterized in that: described low pressure electric pushrod (6) has output shaft (61), and the end of described output shaft (61) rotates with described upper frame (2) and is connected.
6, the lowering or hoisting gear of blood sampling chair according to claim 5, it is characterized in that: described low pressure electric pushrod (6) also comprises motor (66), be arranged on the worm gear (67) on the output revolving shaft of described motor (66), the worm screw (68) of matching with described worm gear (67), with coaxial second bevel gear (65) of fixedlying connected of described worm screw (68), first bevel gear (64) of matching with described second bevel gear (65), with the coaxial leading screw of fixedlying connected of described first bevel gear (64) (63), be set in the sleeve (62) of described leading screw (63) external peripheral surface, the external peripheral surface of described leading screw (63) has external screw thread, the inner circumferential surface of described sleeve (62) has the female thread that matches with the external screw thread of the external peripheral surface of described leading screw (63), and described output shaft (61) is fixedly installed on the described sleeve (62);
Described low pressure electric pushrod (6) also comprises the fairlead (69) that is set in described leading screw (63) outside, the axial line of the axial line of described fairlead (69) and described leading screw (63) coincides, offer the groove (691) that extends along the direction of axis line of described fairlead (69) on the inwall of described fairlead (69), have protuberance (621) on the described sleeve (62), what described protuberance (621) can slide along the direction of axis line of described fairlead (69) is plugged in the described groove (691).
7, the lowering or hoisting gear of blood sampling chair according to claim 6 is characterized in that: the driving voltage of described motor (66) is 24 volts.
8, the lowering or hoisting gear of blood sampling chair according to claim 1 is characterized in that: described air spring (7) has piston rod (71), and the end of described piston rod (71) rotates with described upper frame (2) and is connected.
9, the lowering or hoisting gear of blood sampling chair according to claim 1 is characterized in that: described air spring (7) is in confined state all the time.
10, the lowering or hoisting gear of blood sampling chair according to claim 8, it is characterized in that: described air spring (7) also comprises air bag (73), compresses the piston (72) of described air bag (73), and described piston rod (71) is fixedly installed on the described piston (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201300916U CN201147445Y (en) | 2007-12-30 | 2007-12-30 | Lifting/lowering device for blood-drawing chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201300916U CN201147445Y (en) | 2007-12-30 | 2007-12-30 | Lifting/lowering device for blood-drawing chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147445Y true CN201147445Y (en) | 2008-11-12 |
Family
ID=40115215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201300916U Expired - Fee Related CN201147445Y (en) | 2007-12-30 | 2007-12-30 | Lifting/lowering device for blood-drawing chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147445Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021839A (en) * | 2015-07-16 | 2015-11-04 | 苏州华达仪器设备有限公司 | Height-automatically adjustable sealed air volume cover |
| CN105310852A (en) * | 2014-07-04 | 2016-02-10 | 迈柯唯有限公司 | Device for adjusting the height of an operation table |
| CN106512320A (en) * | 2016-11-24 | 2017-03-22 | 韩俊霞 | Neurological rehabilitation treatment chair |
| US10028874B2 (en) | 2014-07-04 | 2018-07-24 | MAQUET GmbH | Operating table base for an operating table |
| US10383779B2 (en) | 2014-07-04 | 2019-08-20 | MAQUET GmbH | Operating table column for an operating table |
-
2007
- 2007-12-30 CN CNU2007201300916U patent/CN201147445Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105310852A (en) * | 2014-07-04 | 2016-02-10 | 迈柯唯有限公司 | Device for adjusting the height of an operation table |
| US10028874B2 (en) | 2014-07-04 | 2018-07-24 | MAQUET GmbH | Operating table base for an operating table |
| US10111797B2 (en) | 2014-07-04 | 2018-10-30 | MAQUET GmbH | Device for height adjustment of an operating table |
| US10383779B2 (en) | 2014-07-04 | 2019-08-20 | MAQUET GmbH | Operating table column for an operating table |
| CN105021839A (en) * | 2015-07-16 | 2015-11-04 | 苏州华达仪器设备有限公司 | Height-automatically adjustable sealed air volume cover |
| CN106512320A (en) * | 2016-11-24 | 2017-03-22 | 韩俊霞 | Neurological rehabilitation treatment chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |