The content of the invention
For the technical problem in the presence of prior art, the present invention provides a kind of operating table underbody seat, including:
Base body,
Roller, the roller is arranged at the base body side, and the roller has multiple, and wherein at least two is drive
Driving wheel,
Motor, the motor is correspondingly arranged with the driving wheel, the rotation for driving driving wheel,
Wherein, the motor carries reverse direction brake function.
Operating table underbody seat in the present invention is simple in construction, when need to it is operating operation chassis carry out brake hard
When, by inputting plugging electric current to motor so that motor exports zero tach signal, operation chassis is stopped, wherein braking
Function make it that the braking of chassis is steady, and can realize accurate brake operating.
In one embodiment, it is provided with clutch between the motor of the corresponding setting of the driving wheel.
In one embodiment, in addition to live axle, the motor is connected by clutch with the live axle, so that
The driving wheel is driven to rotate;Wherein, the live axle is supported fixation by least two bearings.
In one embodiment, the bearing includes being arranged on the first axle for the side that live axle is connected with the clutch
Hold, and positioned at the second bearing of the driving wheel opposite side.
In one embodiment, the clutch shaft bearing Internal and external cycle is fixed;The second bearing inner ring is fixed, and outer ring is not fixed.
Different selections is used for clutch shaft bearing and second bearing axial restraint mode, inner ring fixes outer in the axial direction in clutch shaft bearing
In the case of circle is unfixed, in the case of the axial precision of live axle is not extra high, because clutch shaft bearing outer ring does not have
Fixed, therefore, bearing can allow have small movement in the case of second bearing and live axle fixation, so as to adapt to
The small deviation of live axle in the axial direction;Driving wheel is further allowd to be smoothed out installation.Therefore, it is such to set
Put so that easier for installation, while eliminating influence of the axle-system axial manufacturing and positioning errors for driving wheel installation process.
In one embodiment, the roller also includes at least one driven pulley, and the driven pulley is universal wheel.By driven pulley
Universal wheel is set to, so as to add the flexibility of operating table underbody seat activity.
In one embodiment, in addition to multiple first halting mechanisms, the driving wheel has two, between two driving wheels
The first halting mechanism is provided with, other first halting mechanisms are correspondingly arranged with the universal wheel.
In one embodiment, in addition to extension leg, the extension leg is arranged at prolonging on the base body length direction
Stretch one's legs, the extension leg is used to increase the support distances of the base body.
In one embodiment, the extension leg includes extension bar and is arranged on the second universal wheel of the extension bar afterbody.
By setting extendible movable supporting leg in the present invention, add base body its length direction support away from
From so that the operating table underbody seat can be flexibly applied to the occasion of different support demands.Meanwhile, the operating table underbody seat passes through
Halting mechanism is set, the stability in surgical procedure is added, the risk of operating table sliding is reduced.
Another aspect of the present invention also provides a kind of operation chassis, including above-described any operating table underbody seat.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the structural representation of the operating table underbody seat in first embodiment of the invention, and Fig. 2 is the operating table in Fig. 1
The right view of underbody seat, Fig. 3 is the B-B direction sectional view in Fig. 2, and Fig. 4 is the enlarged drawing of Fig. 3 part A.
Implement to be specifically described to first with reference to Fig. 1 to Fig. 3.
Operating table underbody seat in this implementation, including base body 1, in this embodiment base body 1 therein be set to
Rectangular configuration, rectangular configuration is as common structure advantageously in the progress of actual production, and certain those skilled in the art can be with
Specifically designed according to actual needs.The side of base body 1 is provided with roller, in order that it is more steady to obtain overall structure
Surely being arranged on the roller has multiple, and roller includes driving wheel 2 and driven pulley 3, and multiple rollers are equal in the side of base body
Even arrangement.In order that the driving for obtaining driving wheel for overall structure is more smooth, it is preferred that driving wheel 2 is at least provided with two.
In this embodiment, there are two driving wheels 2 in the corresponding position in two angles faced of the rectangular configuration of base body 1, at two other
The corresponding position in angle is provided with two driven pulleys 3 (one is only illustrated in Fig. 1).
Operating table underbody seat in this implementation also includes drive device, and drive device is used for the rotation for driving driving wheel, this
Drive device is motor 4 as shown in Figure 1 to Figure 3 in implementation, and motor 4 is correspondingly arranged with driving wheel 2.
It is preferred that, operating table underbody seat also includes control device (not shown in FIG.), control device and multiple 4 points of motors
Do not connect, the rotating speed of driving wheel 2 is controlled by motor 4.In this embodiment, control device is attached respectively with two motors 4,
It therefore, it can control the working condition of two motors respectively, so as to realize the respective different velocity of rotation of two driving wheels 2 of control
And rotation direction, you can to realize the advance of operation chassis by the direction and speed discrepancy of two driving wheels 2, retreat and
Turn to etc..
It is preferred that, it is provided with clutch 5 between the motor 4 of the corresponding setting of driving wheel 2.The setting of clutch 5 makes
Motor 4 is more steady for the control of driving wheel 2, the conversion in speed and direction more facilitates steady.It is further in order to
Operation chassis operates steadily considerations, and clutch 5 is electromagnetic clutch, and motor 4 is with decelerator.
The present embodiment is specifically improved for the concrete structure of drive part, now by the drive division of operating table underbody seat
Divide and be defined as drive wheel assemblies, specifically as shown in Figure 3 and Figure 4.Wherein, Fig. 3 is Fig. 2 B-B direction sectional view, and Fig. 4 is that Fig. 3 exists
The enlarged drawing in A portions.As shown in Fig. 3 and Fig. 4, wherein drive wheel assemblies include:Driving wheel 2, live axle 21, live axle 21 is worn
Overdrive and take turns 2 and be fixedly connected with driving wheel 2;Also include clutch 5, clutch 5 is connected with live axle 21;And driving dress
Put, drive device is connected with clutch 5, wherein, drive device is connected by clutch 5 with live axle 21, so as to drive
Driving wheel 2 is rotated.Drive device is motor 4 as depicted in this embodiment.
It is preferred that, also include in the drive wheel assemblies in the fixation and support for driving wheel, the present embodiment to realize
Bearing, as shown in figure 4, bearing includes the clutch shaft bearing 22 and second bearing 22 that bearing at least includes being arranged at the both sides of driving wheel 2,
It is clutch shaft bearing 22 away from the side of clutch 5 to be wherein located at driving wheel 2, and positioned at driving wheel 2 close to the clutch 5 one
Side for second bearing 23.Also include the bearing block for fixing bearing, wherein the clutch shaft bearing for supporting clutch shaft bearing 22
Seat 24, for support second bearing 23 for second bearing seat 25.In the present embodiment in order to realize the guarantor for clutch 5
Shield, be additionally provided with clutch box body 51, clutch box body 51 is set around clutch 5, in order to simplify overall structure design with
And space is saved, the side wall using clutch box body 51 close to the side of driving wheel 2 is used as second bearing seat 25.
Further to the axial restraint of bearing, the present invention uses different axial directions to clutch shaft bearing 22 and second bearing 23
Inner ring is fixed outer ring and not fixed in the axial direction for fixed form, wherein clutch shaft bearing 22, the inner ring and outer in the axial direction of second bearing 23
Circle is fixed.It is such set cause when being driven the installation of wheel shaft 21, clutch shaft bearing 22 and second bearing 23,
Requirement for the axial precision of live axle 21 is lower, so as to reduce the difficulty and production cost of installation.Specifically refer to,
In the case of in clutch shaft bearing 22, inner ring fixation outer ring is unfixed in the axial direction, when the axial precision of live axle 21 is not special
In the case of height, because clutch shaft bearing outer ring is not fixed, therefore, what bearing can be fixed in second bearing and live axle
In the case of allow have small movement, so as to adapt to the small deviation of live axle in the axial direction;Further so that driving
Wheel can be smoothed out installing.
It is preferred that, first bearing seat 24 can be improved further, specifically as shown in figure 4, first bearing seat 24 is set
The cell body 241 for accommodating the clutch shaft bearing 22 is equipped with, in the live axle 21 for completing clutch shaft bearing 22 and being located therein
Installation after, also have travelling space 242 in cell body 241, be that clutch shaft bearing 22 and live axle 21 leave in cell body 214
Certain space, the axial required precision for live axle is reduced;Left simultaneously to clutch shaft bearing 22 and live axle 21
Certain expansion space, it is ensured that in clutch shaft bearing 22 and live axle 21 because still can be normal in the case of fever expansion
Work.
Fig. 5 show the partial enlarged drawing of the C portion in Fig. 4, in Figure 5 the major embodiment He of clutch shaft bearing 22 therein
The specific axial restraint mode in live axle 2 of second bearing 23.Wherein clutch shaft bearing 22 includes clutch shaft bearing inner ring 221
With clutch shaft bearing outer ring 222;In the side adjacent with driving wheel 2 of clutch shaft bearing inner ring 221, between clutch shaft bearing inner ring 221
The first baffle ring 26 being provided with, snap ring 29 is provided with the opposite side of clutch shaft bearing inner ring 221, and first is stretched out in live axle 21
One end of bearing 22 is provided with the groove 212 of the snap ring 29 for accommodating and fixing, and clutch shaft bearing inner ring 221 is by the first baffle ring 26
Axial restraint is realized with the extruding of snap ring 29;Clutch shaft bearing outer ring 222 does not carry out axial fixation.Wherein second bearing 23 includes the
Two bearing inner races 231 and second bearing outer ring 232;The protuberance 211 circumferentially disposed along live axle 21 on live axle 21,
Protuberance 211 is arranged between second bearing inner ring 231 and driving wheel 2, side of the second bearing inner ring 231 away from driving wheel 2
It is in contact by the side with the second baffle ring 27, the opposite side of the second baffle ring 27 is in contact with clutch 5, so as to realize for
The axial restraint of two bearing inner races 231.The hole that second bearing seat 25 allows live axle 21 to pass through is shoulder hole, and shoulder hole is close
One stomidium of driving wheel 2 is larger, can accommodate second bearing 22, and a stomidium of the shoulder hole away from driving wheel 2 is smaller, therefore is formed
Step 251;Side of the second bearing outer ring 232 away from driving wheel 2 is in contact with step 251 close to the side of driving wheel 2, the second axle
Bearing outer-ring 232 realizes axle close to the side of driving wheel 2 by being fixed on flange 28 of the second bearing seat 25 close to the side of driving wheel 2
To fixation.Above-mentioned fixed form is simple in construction, is easy to implement.
In order to realize the control mode in the emergent stopping for operation chassis in the process of running, the present invention for motor
Improved, in the present embodiment, motor therein 2 preferably has reverse direction brake function.Briefly, needing to fortune
When operation chassis in row carries out brake hard, by inputting plugging electric current to motor 4 so that the output zero-turn speed of motor 4
Signal, so that operation chassis be stopped.
In one embodiment, the bottom of the base body 1 is provided with the first halting mechanism 6 of distribution triangular in shape.Should
Triangular structure make use of the stability principle of triangle, add the base body 1 it is parked after stability.
In one embodiment, first halting mechanism 6 includes foot-operated 61 and for controlling the base body 1 to stay
The support feet 62 stopped, and linkage (not shown), the linkage pass through the foot-operated 61 control support feet 62
Lifting.
First halting mechanism 6 is independent mutually with the roller 3, and base body 1 is realized not by locking roller 3
It is parked, but frictional force when being contacted by support feet 62 with ground between ground is parked to realize.Specifically, when operation
Chassis base is moved to after specified location, steps on foot-operated 61, power is transferred to support feet 62, the support feet 62 by linkage
Extend downwardly from contacting with ground, and larger frictional force is produced between weight by operating table underbody seat itself and ground, realize
Operating table it is parked.Terminate when parked, when operating table needs shift position, can upwards be provoked foot-operated 61 with pin, support feet 62
Move up and and surface separation, operating table underbody seat release it is parked.
It is preferred that, the bottom of the support feet 62 is provided with rubber blanket 63, to increase the friction between support feet 62 and ground,
Prevent the parked rear stress movement of operating table.
As shown in figure 1, the operating table underbody seat in the present embodiment is a part for operation chassis, general can be with operating table
Pillar construction is set in underbody seat, due to structures such as support mechanical arm, operation handles, as shown in figure 1, can on the first column 91
To set mechanical arm (not shown), operation handle (not shown) can be set on the second column 92.Certainly also may be used
To carry out the setting of specific operation chassis using other modes, repeat no more again.
The structural representation for the operating table underbody seat being illustrated in figure 6 in second embodiment of the invention, it will be appreciated from fig. 6 that with
First embodiment is compared, and is provided with extension leg 7 on the length direction of base body 1 in the present embodiment, and extension leg 7 is used to increase
The support distances of the base body 1;Length direction in the present invention refers to that edge as shown in Figure 6 is arranged on the driving wheel of rear end
2 arrive the direction of driven pulley 3.Because the present invention merely relates to operating table underbody seating portion, other parts are largely not shown, such as scheme
Operating table foundation shown in 6, the first column 91 is not compared to Figure 1 illustrated, be will not be repeated here.Referring to Fig. 6 in the present embodiment,
The base body 1 and the extension leg 7 are connected by connector 8, and connector 8 therein as shown in Figure 6 includes being arranged on institute
Extension first connecting plate 81 of the leg 7 towards the one end of base body 1 is stated, the center of the first connecting plate 81 is provided with connecting shaft 82,
The circumference of the connecting shaft 82 is provided with some first screwed hole (not shown);Base body 1 is arranged on towards the extension
Second connecting plate 83 of the one end of leg 7, the center of second connecting plate 83 is provided with connecting hole 84, the interior energy of connecting hole 84
The connecting shaft 82 is enough worn, the circumference of the connecting hole 84 is provided with second screw thread corresponding with the first screw thread hole site
Hole 85.
Specifically, first connecting plate 81 with it is described extension leg 7 be structure as a whole, second connecting plate 83 with it is described
Base body 1 is also structure as a whole., will when chassis of performing the operation needs to increase support distances of the extension leg 7 to lengthen base body 1
Connecting shaft 82 is arranged in connecting hole 84, and screw is arranged in the first screwed hole and the second screwed hole 85 so that extension leg 7
Fixed with base body 1.It is preferred that, the cross section of the first connecting plate 81 and the second connecting plate 83 is rectangle, and described first
Screwed hole and the second screwed hole 85 are four, and four screwed holes are located at the first connecting plate 81 and the second connecting plate 83 respectively
Four corner positions.
In one embodiment, as shown in fig. 7, the second connecting plate 83 is provided with some through holes 86 close to the position at edge,
During dismounting extension leg 7, external force is applied by 86 pairs of the through hole extension leg 7 so that the extension leg 7 and the base sheet
Body 1 is separated.The position of the correspondence of base body 1 through hole 86 is provided with groove 87, during dismounting extension leg 7, out of described groove 87
A screw is penetrated to the through hole 76, the diameter of the screw is less than the diameter of the through hole 76, caused by being exerted a force to screw
The extension leg 2 is ejected.It is preferred that, the through hole 76 is two, respectively positioned at two vertical angles position of the second connecting plate 83
Put.
In one embodiment, the extension leg 7 includes extension bar 71 and is arranged on the second of the afterbody of extension bar 71
Universal wheel 72.Set the one side of the second universal wheel 72 to increase the flexibility of operating table underbody seat movement, on the other hand may be used
To balance the active force that the extension bar 71 is subject to.In the case of being not provided with second universal wheel 72, the part of extension bar 71 by
The active force of operating table is largely focused on the part of connecting shaft 82, and the long-time stress of connecting shaft 82 easily causes damage fracture.
In one embodiment, bottom of the extension bar 71 away from described one end of base body 1 is provided with the second parking machine
Structure 73.Second halting mechanism 73 coordinates the first halting mechanism 6 on the base body 1, to increase operating table underbody seat
Stability after parked.
The present invention adds the support distances in stent length direction by setting extendible movable supporting leg so that should
Bracket base can be flexibly applied to the occasion of different support demands.Meanwhile, the bracket base is increased by setting halting mechanism
Stability in surgical procedure, reduces the risk of operating table sliding.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as in the absence of structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.