A kind of brake device for positioning and rotating photography couch
Technical field
The present invention relates to the armarium technical field, be specifically related to a kind of brake device for positioning and rotating photography couch.
Background technology
Shown in Figure 1 is suspension architecture digital radiation filming system.When carrying out radiophotography, as shown in Figure 2, patient lies on photography bed 3 bed panel, by adjusting the relative position between detector 4 and the bulb light concentrator 1, patient is on bulb light concentrator 1 focus and the detector 4 central vertical lines during clinostatism (bed is the next).As shown in Figure 3, patient stands between detector 4 and bulb light concentrator 1 assembly during upright position (rabat position), by adjusting the relative position between detector 4 and the bulb light concentrator 1, patient is on bulb light concentrator 1 focus and the detector 4 central vertical lines.More than two positions, the x-ray that penetrates from bulb passes patient's lesions position and beats on detector 4 dash receivers after light concentrator is regulated the light open country, after digital processing, generate the image of lesions position on work station, thereby the doctor can provide a diagnostic result.During clinostatism, need earlier machine to be run to the next location status of bed, promote photography bed 3 then, detector 4 is extend into below the bed panel.And when forwarding upright position to by clinostatism, will photograph again and beds 3 push open, stand in order to avoid prevent patient.
(1) in the process that promotes photography bed 3, if medical worker's careless manipulation or exert oneself to produce the situation of photography bed 3 collision detectors 1 or column 2, thereby cause serious loss when excessive.
(2) when promoting photography bed 3, the brake that open castor after the photography bed is shifted the position onto, is stepped on the fixing photography bed of castor brake again, and complex operation has increased medical workers.
As shown in Figure 4, for solving above two problems, be that a castor with photography bed 3 wraps up and castor is fixed on the ground with box body 31 in the prior art, photography bed 3 can be rotated around this castor, positive 90 degree of the bed rotation of will photographing in the time of upright, during clinostatism, negative 90 degree of the bed rotation of will photographing again are just passable.This solution still has following shortcoming:
(1) if medical worker firmly excessive, still might collide detector or column in the process of rotating the photography bed.
(2) medical worker will photograph bed still to step on the castor brake after being rotated in place could the photography bed is fixing, when rotate the photography bed, still to open the castor brake, medical workers is big.
(3) it is inharmonious to wrap box body and whole photography bed profile that castor uses, the aesthetic appearance of influence photography bed.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of brake device for positioning and rotating photography couch, the defective, the medical worker that overcome easy when rotated collision detector of prior art photography bed or column rotate the big defective of photography bed labor intensity, and wrap box body and the inharmonic defective of whole photography bed profile that the photography casters is used.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of brake device for positioning and rotating photography couch, comprise rotating shaft, rotating shaft self-braking device and installation chassis, on described installation chassis, be fixed with bearing, the fixedly connected photography bed of the head end of described rotating shaft, the tail end of described rotating shaft embeds described bearing, and described rotating shaft self-braking device connects described rotating shaft and described installation chassis and in described rotating shaft rotary course described rotating shaft braked.
Described brake device for positioning and rotating photography couch, wherein said installation chassis comprise base and and the vertical tube of described base one, described bearing embeds described vertical tube.
Described brake device for positioning and rotating photography couch, wherein said rotating shaft is provided with blind hole, described rotating shaft self-braking device comprises stage clip and the steel ball that is arranged in the described blind hole, and on described vertical tube inwall first groove of relevant position.
Described brake device for positioning and rotating photography couch, wherein said rotating shaft self-braking device also is included on the described vertical tube inwall and corresponding second groove in described blind hole position, and second groove and first groove are 90 with respect to described vertical tube centrage and spend angles.
Described brake device for positioning and rotating photography couch, wherein said vertical tube inwall is provided with blind hole, described rotating shaft self-braking device comprises stage clip and the steel ball that is arranged in the described blind hole, and on described rotating shaft first groove of relevant position.
Described brake device for positioning and rotating photography couch, wherein said rotating shaft self-braking device also are included on the described rotating shaft and corresponding second groove in described blind hole position, and second groove and first groove are 90 degree angles with respect to rotating shaft center's line.
Described brake device for positioning and rotating photography couch, wherein said device also comprises the installation chassis outer housing, described installation chassis outer housing and described rotating shaft are by being threaded.
Described brake device for positioning and rotating photography couch, the head end of wherein said rotating shaft is provided with external screw thread, and the support of described rotating shaft and photography bed is by being threaded.
Beneficial effect of the present invention: use brake device for positioning and rotating photography couch of the present invention can avoid that the photography bed collides detector or column in the process of rotating the photography bed, the medical worker also needn't brake the photography bed by jamming on the brake of photography casters, has alleviated medical workers greatly.
Description of drawings
The present invention includes following accompanying drawing:
Fig. 1 is a prior art suspension architecture digital radiation filming system sketch map;
Fig. 2 takes sketch map for the prior art clinostatism;
Fig. 3 is the upright position shooting of prior art sketch map;
Fig. 4 is prior art photography bed sketch map;
Fig. 5 is a brake device for positioning and rotating photography couch three-dimensional exploded view of the present invention;
Fig. 6 is a brake device for positioning and rotating photography couch cutaway view of the present invention;
Fig. 7 is a brake device for positioning and rotating photography couch scheme of installation of the present invention;
Fig. 8 installs cutaway view for brake device for positioning and rotating photography couch of the present invention.
The specific embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As Fig. 5, Fig. 6, Fig. 7 and shown in Figure 8, brake device for positioning and rotating photography couch 10 of the present invention comprises rotating shaft 11, rotating shaft self-braking device and installation chassis 12, on installation chassis 12, be fixed with bearing 14, the fixedly connected photography bed of the head end of rotating shaft 11, the tail end of rotating shaft 11 embeds bearing 14, and the rotating shaft self-braking device connects rotating shaft 11 and installation chassis 12 and in rotating shaft 11 rotary courses rotating shaft 11 braked.Installation chassis 12 comprise base and and the vertical tube of base one, bearing 14 embeds vertically tube.Rotating shaft 11 is provided with blind hole, and the rotating shaft self-braking device comprises stage clip 111 and the steel ball 112 that is arranged in the blind hole, and on vertical tube inwall first groove 121 of relevant position.The rotating shaft self-braking device also is included on the vertical tube inwall and is 90 degree angles with blind hole position corresponding second groove 121, the second grooves 121 and first groove 121 with respect to vertical tube centrage.Brake device for positioning and rotating photography couch 10 of the present invention also comprises installation chassis outer housing 13, and installation chassis outer housing 13 and rotating shaft 11 are by being threaded.The head end of rotating shaft 11 is provided with external screw thread, and the support 33 of rotating shaft 11 and photography bed is by being threaded, and rotating shaft 11 tops are fixed together by locking nut 113 with photography bedrest 33.
Another embodiment of brake device for positioning and rotating photography couch 10 of the present invention is that vertically the tube inwall is provided with blind hole, the rotating shaft self-braking device comprises stage clip and the steel ball that is arranged in the described blind hole, with corresponding first groove in blind hole position and second groove, second groove and first groove are 90 degree angles with respect to rotating shaft center's line on rotating shaft.
The installation site of brake device for positioning and rotating photography couch 10 of the present invention is nearer with castor 32 positions of photography bed, with the radius of turn of the bed that reduces to photograph.Installation chassis 12 is fixed together by the screw that screws in through hole 122 with the floor.When rotating the photography bed, rotating shaft 11 rotates synchronously with the photography bed, when forwarding 90 to when spending, is installed in the groove 121 in steel ball 112 on the rotating shaft 11 will be stuck in installation chassis 12 under the effect of stage clip 11 the vertical tube; When counter turning 90 degrees, steel ball 112 can be stuck in again in another groove 121, thereby realizes that twice in 90 degree scopes of photography bed is spacing, and the medical worker is without the control pin wheel brake.Promptly in clinostatism and upright position mutually during conversion, but the 90 degree rotation automatic spacings that the photography bed carries out, and the phenomenon of collision detector or column can not appear.In the practical application, in the time will taking patient's rabat, patient will stand in the detector front, and chest is close to the detector sensitive surface, at this moment, will move to the photography bed on one side, with standing of obstruction free patient.The medical worker just can rotate a jiao of photography bed, firmly the photography bed can be rotated 90 degree and realize automatic spacing once getting rid of, and operates very easy.Can change brake force by size, the size of stage clip power and the size of installation chassis upper groove of adjusting steel ball, thereby realize effective automatic spacing of photography bed.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalent structure that all utilizations description of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.