CN204683600U - Hand release and imaging device - Google Patents
Hand release and imaging device Download PDFInfo
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- CN204683600U CN204683600U CN201520007261.6U CN201520007261U CN204683600U CN 204683600 U CN204683600 U CN 204683600U CN 201520007261 U CN201520007261 U CN 201520007261U CN 204683600 U CN204683600 U CN 204683600U
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- drive shaft
- main drive
- clutch
- hand release
- driving member
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Abstract
This utility model provides a kind of hand release and imaging device, wherein, comprising: a main drive shaft (10), and its one end is used for being connected with drive source, one driving member (40), it is fixed on described main drive shaft, and rotates with described main drive shaft, one driven member (30), it is along the side being axially set in described driving member (40) of described main drive shaft, one clutch component (50), it is along the opposite side opposed with described driven member (30) being axially set in described driving member of described main drive shaft, described clutch component (50) can move between transmission position and disengaging configuration, wherein, in described transmission position, described driven member (30) is connected with described driving member (40) by described clutch component (50), and accept the rotary actuation of described main drive shaft (10), at described disengaging configuration, described driven member (30) departs from described driving member (40) and is connected, and disconnect the rotary actuation of described main drive shaft (10).
Description
Technical field
This utility model relates to a kind of hand release and imaging device.
Background technology
Diagnostic bed is the important ingredient of magnetic resonance system one, the horizontal drive apparatus of sick bed drives drive disk assembly to drive bed panel to move back and forth by motor, by remote control software, patient is transported to the imaging region of specifying, but as run into the emergency situations such as power failure, software failure in imaging process, now cannot utilize motor that patient is taken away imaging area by control software design, just need doctor by manual operation, bed panel is pulled and gets back to initial position, make patient away from danger.The pulling force now manually pulling bed board needs to overcome frictional resistance in the frictional resistance of bed panel and guide wheel, driving-chain and the larger holding torque of motor self.This resistance can reach 200 newton (about motor holding torque 100 newton), and this makes manually to pull bed board reset and becomes the needs larger strength of cost and time.
Utility model content
In view of this, the utility model proposes and a kind ofly can reduce the hand release of reset resistance and possess the imaging device of this hand release.
An embodiment of the present utility model provides a kind of hand release, wherein, comprising: a main drive shaft, and its one end is used for being connected with drive source; One driving member, it is fixed on described main drive shaft, and rotates with described main drive shaft; One driven member, it is along the side being axially set in described driving member of described main drive shaft; One clutch component, it is along the opposite side opposed with described driven member being axially set in described driving member of described main drive shaft, described clutch component can move between transmission position and disengaging configuration, wherein, in described transmission position, described driven member is connected with described driving member by described clutch component, and accept the rotary actuation of described main drive shaft, at described disengaging configuration, described driven member departs from described driving member and is connected, and disconnects the rotary actuation of described main drive shaft.
According to embodiment of the present utility model, install hand release additional in driver part after, pull clutch component just can realize being separated of drive source and driven member, now manually pull frictional resistance and driving-chain frictional resistance that pulling force that the bed board be connected with driven member carries out resetting only needs to overcome guide wheel, user can easily pass through to pull and be resetted by bed board.
In addition, in the above-described embodiments, preferably on described driving member, one first pilot hole is offered along the direction parallel with the axis of described main drive shaft, on described driven member, one second pilot hole is offered along the direction parallel with the axis of described main drive shaft, the end face relative with described driving member of described clutch component is arranged in the prominent part of a guide along the direction parallel with the axis of described main drive shaft, in described transmission position, described guide runs through described first pilot hole and described second pilot hole, connect described driving member and described driven member, at described disengaging configuration, described guide departs from from described second pilot hole.
In addition, in the above-described embodiments, preferably also comprise and a clutch driving lever and the mosaic process being arranged at described clutch driving lever, described clutch driving lever is installed along the direction vertical with the axis of described main drive shaft, and can swing along the direction that the axis of described main drive shaft is parallel, offer an annular recess at described clutch component along on the surface of driving shaft radial outside, and the mosaic process of described clutch driving lever is embedded in the annular recess of described clutch component.
In addition, in the above-described embodiments, preferably also comprise a hold-down mechanism, described hold-down mechanism comprises an end cap and a holddown spring, described end cap is fixed on the other end relative with described drive source of described driving shaft, described holddown spring is arranged between described end cap and described clutch component, bestows ejection force to described clutch component.
Another embodiment of the present utility model provides a kind of imaging device, wherein, comprising: mounting table, for carrying imaging object thing; Above-mentioned hand release, and described driven member is connected to described mounting table.
According to embodiment of the present utility model, install hand release additional in driver part after, pull clutch component just can realize being separated of drive source and driven member, now manually pull frictional resistance and driving-chain frictional resistance that pulling force that the bed board be connected with driven member carries out resetting only needs to overcome guide wheel, doctor can easily pass through to pull and be resetted by bed board.
Accompanying drawing explanation
Preferred embodiment of the present utility model will be described in detail by referring to accompanying drawing below, the person of ordinary skill in the art is more clear that above-mentioned and other feature and advantage of the present utility model, in accompanying drawing:
Fig. 1 schematically shows the axonometric chart of the hand release involved by embodiment of the present utility model.
Fig. 2 schematically shows in the hand release involved by embodiment of the present utility model profile when being in transmission position.
Fig. 3 hand release schematically shown involved by embodiment of the present utility model carries out the axonometric chart of clutch action.
Fig. 4 schematically shows in the hand release involved by embodiment of the present utility model profile when being in disengaging configuration.
Wherein, Reference numeral is as follows:
1 hand release;
10 main drive shafts;
20 motors (drive source);
30 driven discs (driven member);
31 second lip portions;
32 second pilot holes;
40 rotating plates (driving member);
41 first lip portions;
42 first pilot holes;
50 clutch-plates (clutch component);
51 direction protrusions;
52 annular recess;
53 locating lugs;
60 on-of pins;
70 end caps;
80 holddown springs;
90 torsion springs;
100 driving lever supports;
110 electric machine supports;
120 clutch driving levers;
121 mosaic processes;
130 driven pulleys;
140 driving-belts.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, by the following examples this utility model is further described.
In this article, " schematically " expression " serves as example, example or explanation ", not should by being described to any diagram of " schematically " in this article, embodiment is interpreted as a kind of preferred or have more the technical scheme of advantage.
For making simplified form, only schematically show the part relevant to this utility model in each figure, they do not represent its practical structures as product.In addition, being convenient to for making simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only having marked one of them.
Fig. 1 schematically shows the axonometric chart of the hand release 1 involved by embodiment of the present utility model.Fig. 2 schematically shows in the hand release 1 involved by embodiment of the present utility model profile when being in transmission position.Fig. 3 hand release 1 schematically shown involved by embodiment of the present utility model carries out the axonometric chart of clutch action.Fig. 4 schematically shows in the hand release 1 involved by embodiment of the present utility model profile when being in disengaging configuration.
As shown in Figure 1, 2, the sick bed driving device involved by embodiment of the present utility model mainly comprises: main drive shaft 10, motor 20, rotating plate 40, driven disc 30, clutch-plate 50.In the present embodiment, one end of main drive shaft 10 is connected to motor 20 by spline or screw etc., and the rotation accepting motor 20 exports.Near the other end of main drive shaft 10, be provided with the rotating plate 40 of a circle, and main drive shaft 10 runs through this rotating plate 40, and coupled together with rotating plate 40 by spline etc.As shown in Figure 2, this rotating plate 40 comprise the peripheral part being socketed in main drive shaft 10 sleeve and from sleeve to the first lip portions 41 that the radial outside of main drive shaft 10 stretches out.This first lip portions 41 has four the first pilot holes 42 (only illustrating two in figure) circumferentially arranged at equal intervals.
As shown in Figure 1, 2, in close motor 20 end side of rotating plate 40, the axis of main drive shaft 10 is provided with driven disc 30, driven disc 30 has the second lip portions 31 that the radial outside to main drive shaft 10 stretches out, and the second lip portions 31 has equally four the second pilot holes 32 (only illustrating two in figure) circumferentially arranged at equal intervals.Be provided with driven pulley 130 in close motor 20 side of driven disc 30, and driven pulley 130 is fixed on main drive shaft 10 by double-row bearing.In the present embodiment, driven pulley 130 is connected with the sick bed (not shown) in medical imaging device, as the horizontal drive wheel work of sick bed by driving-belt 140 grade.
In addition, in the end side away from motor 20 of rotating plate 40, the axis of main drive shaft 10 is provided with clutch-plate 50.This clutch-plate 50 for having the cavity of hollow, and has four direction protrusions 51 (only illustrating two in figure) circumferentially equally spaced arranged on an end face relative with rotating plate 40 of this clutch-plate 50.Near the end that this clutch-plate 50 is relative with rotating plate 40, give prominence in the cavity of clutch-plate 50 and be provided with a locating lugs 53.In addition, an annular recess 52 is circumferentially provided with at clutch-plate 50 away from the surface near the end of rotating plate 40.
In addition, as shown in Figure 2, the other end contrary with the end that motor 20 is connected of main drive shaft 10 is provided with an end cap 70, and this end cap is fixed on main drive shaft 10 by screw.And spring 80 is provided with between this end cap 70 and locating lugs 53 of clutch-plate 50, and make this spring 80 be positioned at the cavity of clutch-plate 50, in the present embodiment, spring 80 is configured to bestow ejection force to rotating plate 40.In addition, between end cap 70 and rotating plate 40, along the locating ring 150 be axially arranged with for carrying out axial limiting to rotating plate 40 of main drive shaft 10.Thus by end cap 70 and spring 80, clutch-plate 50, rotating plate 40, driven disc 30 location are fixed on driving shaft 10.
In addition, as shown in Figure 1, 2, for the support 110 of fixed electrical machinery 20 is provided with driving lever support 100, and be articulated with by on-of pin 60 the clutch driving lever 120 that framework becomes " door " font near the end of the close clutch-plate 50 of driving lever support 100, in the present embodiment, in order to more effectively utilize space, reduce the volume of hand release 1, make main drive shaft 10 through " door " font framework of clutch driving lever 120, namely clutch driving lever 120 is installed along the direction vertical with the axis of main drive shaft, and can swing along the direction parallel with the axis of main drive shaft.At on-of pin 60 and the pivot points of clutch driving lever 120, a torsion spring 90 is set.When stirring clutch driving lever 120, there is elastic deformation in torsion spring 90, when discharging clutch driving lever 120, utilizes this elastic deformation force that clutch driving lever 120 can be made to turn back to initial position.In addition, be provided with mosaic process 121 in the position corresponding with the annular recess 52 of clutch-plate 50 of clutch driving lever 120, and this mosaic process 121 is embedded in the annular recess 52 of clutch-plate 50.
Below, the specific works method of the hand release 1 of embodiment of the present utility model is described.
In the present embodiment, as shown in Figure 2, when for driving sick bed, connect the power supply of motor 20, main drive shaft 10 is rotated, and clutch-plate 50 is aimed at the first pilot hole 42 of rotating plate 40 and the second pilot hole 32 of driven disc 30 by mounted thereto four direction protrusions 51, clutch-plate 50 makes direction protrusion 51 through this first pilot hole 42 and the second pilot hole 32 under the effect of holddown spring 80, thus is fixed together relative with driven disc 30 for rotating plate 40.In this case, clutch-plate 50 is in transmission position, clutch-plate 50 will pass to driven disc 30 from the direction protrusion 51 that is rotated through of main drive shaft 10 (and rotating plate 40), and then drive and the driven pulley 130 that is fixed together of driven disc 30 rotates, thus the sick bed bed board be connected with driven pulley 130 can move.That is, exist
When in imaging process as run into the emergency situations such as power failure, software failure, when now cannot be driven by motor 20 pairs of bed boards, by the direction of arrow shown in Fig. 3, clutch driving lever 120 is rotated around rotational pin 60, the mosaic process 121 be embedded in the annular recess 52 of clutch-plate 50 drives clutch-plate 50 to slide on the right side of the drawing shown in Fig. 3, until the direction protrusion 51 of clutch-plate 50 departs from the second pilot hole 32 of driven disc 30.The profile of the disengaging configuration that the second pilot hole 32 that the clutch-plate 50 that Fig. 4 shows the present embodiment becomes direction protrusion 51 and driven disc 30 departs from.As shown in Figure 4, when clutch-plate 50 is in disengaging configuration, the direction protrusion 51 of clutch-plate 50 only runs through in the first pilot hole 42 of rotating plate 40, and be not positioned at the second pilot hole 32 of driven disc 30, such driven disc 30 is disconnected with the connection of rotating plate 40, thus realizes being separated of rotating plate 40 and driven disc 30.Now, the driven pulley 130 linked together with driven disc 30 is also thrown off with the connection of main drive shaft 10.Like this, when needs manually pull to be connected sick bed reposition with driven pulley 30 time, as long as pull clutch driving lever 120, just can realize motor 20 (main drive shaft 10) to be separated with the driving-chain of bed panel (driven pulley 130), the pulling force now manually pulling bed board reset only needs to overcome frictional resistance and the driving-chain frictional resistance of guide wheel, and doctor can easily pass through to pull and be resetted by bed board.
In addition, in the above-described embodiments, exemplified with the second pilot hole 32 being made the direction protrusion 51 of clutch-plate 50 depart from driven disc 30 by clutch driving lever 120, but also clutch driving lever 120 can not be set.
In addition, in the above-described embodiments, exemplified with when clutch-plate 50 is in disengaging configuration, direction protrusion 51 is still positioned at the first pilot hole 42 of rotating plate 40, but also can depart from completely from the first pilot hole 42 and the second pilot hole 32.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a hand release, is characterized in that, comprising:
One main drive shaft, its one end is used for being connected with drive source;
One driving member, it is fixed on described main drive shaft, and rotates with described main drive shaft;
One driven member, it is along the side being axially set in described driving member of described main drive shaft;
One clutch component, it is along the opposite side opposed with described driven member being axially set in described driving member of described main drive shaft,
Described clutch component can move between transmission position and disengaging configuration, it is characterized in that, in described transmission position, described driven member is connected with described driving member by described clutch component, and accept the rotary actuation of described main drive shaft, at described disengaging configuration, described driven member departs from described driving member and is connected, and disconnects the rotary actuation of described main drive shaft.
2. hand release according to claim 1, is characterized in that,
On described driving member, offer one first pilot hole along the direction parallel with the axis of described main drive shaft,
On described driven member, offer one second pilot hole along the direction parallel with the axis of described main drive shaft,
The end face relative with described driving member of described clutch component is arranged in the prominent part of a guide along the direction parallel with the axis of described main drive shaft,
In described transmission position, described guide runs through described first pilot hole and described second pilot hole, connects described driving member and described driven member, and at described disengaging configuration, described guide departs from from described second pilot hole.
3. hand release according to claim 1 and 2, is characterized in that,
Described hand release also comprises a clutch driving lever and is arranged at a mosaic process of described clutch driving lever, described clutch driving lever is also installed along the direction vertical with the axis of described main drive shaft across described main drive shaft, and can swing along the direction that the axis of described main drive shaft is parallel
Offer an annular recess at described clutch component along on the surface of driving shaft radial outside, and the mosaic process of described clutch driving lever is embedded in the annular recess of described clutch component.
4. hand release according to claim 1 and 2, is characterized in that,
Described hand release also comprises a hold-down mechanism, described hold-down mechanism comprises an end cap and a holddown spring, described end cap is fixed on the other end relative with described drive source of described driving shaft, described holddown spring is arranged between described end cap and described clutch component, bestows ejection force to described clutch component.
5. an imaging device, is characterized in that,
Mounting table, for carrying imaging object thing;
Hand release according to any one of Claims 1 to 4, and described driven member is connected to described mounting table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007261.6U CN204683600U (en) | 2015-01-05 | 2015-01-05 | Hand release and imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007261.6U CN204683600U (en) | 2015-01-05 | 2015-01-05 | Hand release and imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204683600U true CN204683600U (en) | 2015-10-07 |
Family
ID=54223945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007261.6U Active CN204683600U (en) | 2015-01-05 | 2015-01-05 | Hand release and imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204683600U (en) |
-
2015
- 2015-01-05 CN CN201520007261.6U patent/CN204683600U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |