CN109730631A

CN109730631A - Clinical obstetrics clamp stretching apparatus

Info

Publication number: CN109730631A
Application number: CN201910129801.0A
Authority: CN
Inventors: 杨蕾; 付文君
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2019-02-21
Filing date: 2019-02-21
Publication date: 2019-05-10

Abstract

Clinical obstetrics clamp stretching apparatus, good expanded support cannot be carried out to patient's lower body during the inspection process by solving present clinical obstetrics, lead to limited view, check the problems such as inconvenient for operation, it includes seat, chair base rear end is rotatably equipped with the chair back, seat lower end is fixed, and there are four supporting legs, be equipped in the middle part of two supporting legs of front end can vertical sliding supporting table, supporting table upper end is fixed with cabinet, it is horizontally slidable in cabinet to be equipped with slide unit, lateral rotatable rotation axis is equipped in slide unit, the rear end of rotation axis and middle-end are equipped with the opposite screw thread of thread rotary orientation, the rear end of rotation axis and middle-end are threaded with a sliding block respectively, the left end of each sliding block is rotatably fixed with first gear, the first rack gear is fixed in slide unit, first rack gear is located at the top of first gear, first gear and the first rack gear are intermeshed, first It is hinged with first connecting rod on the outside of gear, is hinged with second connecting rod on the outside of first connecting rod, the other end and the expanded support plate of second connecting rod are hingedly fixed.

Description

Clinical obstetrics clamp stretching apparatus

Technical field

The present invention relates to the field of medical instrument technology, clamp stretching apparatus more particularly, to a kind of clinical obstetrics.

Background technique

Obstetrics are one and are related to forepart pregnant women, childbirth puerperium overall process, and to all lifes caused by during this Reason, psychology, pathological change are diagnosed, the medical science of processing, are the science for assisting new life to be born.

Clinical obstetrics are when checking treatment, it will usually check lower body, usually require during inspection to trouble The lower body of person carries out expanded support, is checked to facilitate, and is all using drag hook at present, expanded support pincers are operated, but this behaviour There is a problem of more during making, such as limited view, cannot realize expanded support well.

Summary of the invention

For above situation, to overcome the shortcomings of existing technologies, a kind of clinical obstetrics clamping expanded support dress provided by the invention It sets, the present clinical obstetrics of effective solution cannot carry out good expanded support to patient lower body during the inspection process, lead to the visual field It is limited, check the problems such as inconvenient for operation.

To achieve the above object, the present invention includes seat, and chair base rear end is rotatably equipped with the chair back, and seat lower end is fixed with Four supporting legs, be equipped in the middle part of two supporting legs of front end can vertical sliding supporting table, supporting table upper end is fixed with cabinet, case It is horizontally slidable in vivo to be equipped with slide unit, it is equipped with lateral rotatable rotation axis in slide unit, the rear end of rotation axis and middle-end are set There is the screw thread that thread rotary orientation is opposite, the rear end of rotation axis and middle-end are threaded with a sliding block, the left end of each sliding block respectively It rotatably is fixed with first gear, the first rack gear is fixed in slide unit, the first rack gear is located at the top of first gear, the first tooth Wheel is intermeshed with the first rack gear, and first connecting rod is hinged on the outside of first gear, is hinged with second connecting rod on the outside of first connecting rod, Set the expanded support plate there are two symmetrical arc above slide unit, two expanded support plates carry out lateral horizontal sliding, second connecting rod it is another One end is hingedly fixed with expanded support plate, and rotation axis rotation constitutes the structure that two expanded support plates mutually move, and expanded support plate and cabinet can erect That directly slides runs through seat.

Preferably, it sets in the slide unit there are two the first lateral symmetry T-slot, is slidably equipped in the first T-slot The upper end of first T-block, the first T-block through sliding and is fixed with stiffening plate, and the upper end of stiffening plate is fixed with connecting plate, connection Plate is fixedly connected with expanded support plate, and the first T-block lower end is fixed with vertical vertical plate, and second connecting rod is hingedly fixed with vertical plate.

Preferably, the rotation axis is fixedly arranged at the front end with second gear, is engaged with the second rack gear, the second tooth below second gear Item is horizontally slidable, and horizontally slidable rectangular block is equipped in cabinet, is fixed with rotatable first threaded rod in cabinet, and first Threaded rod is threadedly coupled with rectangular block, is hingedly fixed on the right side of the second rack gear with rectangular block, the lower end of the second rack gear is fixedly connected with The other end of tension spring, tension spring is fixedly connected with rectangular block, and the second rack gear is that can carry out around the second rack gear and rectangular block hinge joint The lower section of the structure of swing, the second rack gear is equipped with cam, and cam is in contact with the lower end surface of the second rack gear, and cam pushes the second tooth When item is meshed with the second gear, the rotation of the first threaded rod constitutes the structure of second gear rotation.

Preferably, horizontal rotatable second threaded rod is equipped in the cabinet, the second threaded rod and slide unit screw thread connect Connect, the second horizontal T-slot be equipped in cabinet, be slidably equipped with the second T-block in the second T-slot, the second T-block upper end with Slide unit is fixedly connected, and the rotation of the second threaded rod constitutes the structure of slide unit level sliding.

Preferably, the second threaded rod right end is fixed with third gear, and idle pulley, idle pulley are engaged with below third gear Lower section be engaged with can in cabinet horizontal sliding the 4th gear, be equipped with rotatable 5th gear, the 5th gear position in cabinet On front side of the lower section of idle pulley, the 5th gear is coaxially fixed with first pulley, and the percutaneous band connection of first pulley has the second belt wheel, and second Belt wheel is fixedly connected with the first threaded rod, and for the 4th gear slidably to engaging with the 5th gear, cam coaxial is connected with the 6th tooth Wheel, the 6th gear are located at the front of cam, are engaged with third rack gear below the 6th gear, third rack gear right end is fixedly connected with The sliding shoe of horizontal sliding in cabinet, cabinet is interior to be equipped with horizontal rotatable third threaded rod, third threaded rod and sliding shoe It is threadedly coupled and constitutes the structure that the rotation of third threaded rod drives the sliding of sliding shoe level, be equipped with rotatable 7th tooth in cabinet Wheel, the 7th gear are located at lower section, the 7th gear on the left of idle pulley and are coaxially connected with third belt wheel, and third belt wheel is located at the 7th gear Left side, the percutaneous band connection of third belt wheel have the 4th belt wheel, and the 4th belt wheel is coaxially connected with the 5th belt wheel, and the 5th belt wheel connects through belt Be connected to the 6th belt wheel, the 6th belt wheel is fixed on the right end of third threaded rod, when the 4th gear is engaged with idle pulley, the 4th gear not with 5th gear, the engagement of the 7th gear, when the 4th gear is engaged with the 5th gear, the 4th gear is not engaged with idle pulley, the 7th gear, When 4th gear is engaged with the 7th gear, the 4th gear is not engaged with idle pulley, the 5th gear.

Preferably, the 4th gear right end is fixed with operating stick, and operating stick front end is slidably run through cabinet and is placed in The right of cabinet, the interior locating slots for being equipped with multiple annulars on the outside of operating stick of cabinet, operating stick are interior equipped with stretching operating stick External positioning head, positioning head and locating slot cooperation constitute operating stick and are fixed on the intracorporal structure of case, are equipped with connection in operating stick The fixture block of positioning head constitutes fixture block and stretches out the fixed structure of lever position, and fixture block is fixed in operating stick through spring, constitutes bullet Positioning head is ejected the structure outside operating stick by spring always.

Preferably, lateral rotatable shaft is equipped between the supporting leg of the front end two, shaft upper outer circumference is fixed with First bevel gear, first bevel gear top are engaged with second bevel gear, and second bevel gear upper end is fixed with rotatable 4th spiral shell Rasp bar, the 4th threaded rod are threadedly coupled with supporting table, and the upper end of the 4th threaded rod is fixedly connected through supporting table with seat.

Preferably, horizontal rectangular through-hole is offered on the seat, cabinet upper surface and expanded support plate slidably pass through Rectangular through-hole, seat are equipped with horizontally slidable shutter, and shutter is horizontally slidable extremely to shut rectangular through-hole.

Preferably, the chair back lower end is fixed with fixing axle, and the chair back and respectively fixed company are run through in fixing axle rear and front end It is connected to a positioning card wheel, the right side for positioning card wheel is equipped with horizontally slidable snap-gauge, and positioning card wheel and snap-gauge cooperation constitute card The structure that plate locks positioning card wheel.

Preferably, the snap-gauge right end is fixed with guide rod, and seat is fixed with vertical guide plate, and guide rod right end is slidable Through guide plate and be fixed with pulling plate, pressure spring be set on guide rod, pressure spring one end is in contact with snap-gauge, the other end of pressure spring with lead It is in contact to plate.

Structure of the invention is novel, is skillfully constructed, simple to operate, the present apparatus be it is dual-purpose, can largely save About man power and material, and can be good at carrying out the lower body of puerpera expanded support, the convenient inspection to puerpera is suitble to carry out in hospital The popularization of range.

Detailed description of the invention

Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:

Fig. 1 is overall structure of the present invention.

Fig. 2 is overall structure axis side structure schematic diagram of the present invention.

Fig. 3 is supporting table vertical sliding structural schematic diagram of the present invention.

Fig. 4 is box inner structure schematic diagram of the present invention.

Fig. 5 is box inner structure axis side structure schematic diagram of the present invention.

Fig. 6 is the second axis of box inner structure side structure schematic diagram of the present invention.

Fig. 7 is slide unit schematic diagram of internal structure of the present invention.

Fig. 8 is slide unit inner shaft side structure schematic diagram of the present invention.

Fig. 9 is expanded support plate slide construction schematic diagram of the present invention.

Figure 10 is expanded support plate sliding axle side structure schematic diagram of the present invention.

Figure 11 is present invention positioning card wheel and snap-gauge fit structure schematic diagram.

Figure 12 is that box house of the present invention removes slide unit schematic diagram of internal structure.

Figure 13 is that box house of the present invention removes slide unit internal structure axis side schematic diagram.

Figure 14 is present invention driving rotation axis rotational structure schematic diagram.

Figure 15 is the second rack gear and second gear fit structure schematic diagram of the invention.

Figure 16 is operation of the present invention bar slide construction schematic diagram.

Specific embodiment

1-16 is described in further details a specific embodiment of the invention with reference to the accompanying drawing.

It is provided by Fig. 1-16, the present invention includes seat 1, and 1 rear end of seat is rotatably equipped with the chair back 2, and 1 lower end of seat is fixed There are four supporting leg 3, puerpera is sitting on seat 1, according to the actual needs the angle between the de-regulation chair back 2 and horizontal plane, to the greatest extent The both legs bending of the possible comfort level for going to guarantee puerpera, puerpera can will be produced by the way that bandage is arranged on the seat by bandage The completely later both legs of woman are fixed, so as to be that the both legs of puerpera are in suitable position, two supporting legs 3 of front end Middle part be equipped with can vertical sliding supporting table 4, supporting table 4 primarily serves the effect of support, and 4 upper end of supporting table is fixed with cabinet 5, The horizontal section area of cabinet 5 is less than the area of section of supporting table 4, and 5 upper end of cabinet is equipped with horizontal sliding slot, can water in cabinet 5 That smoothly moves is equipped with slide unit 6, and slide unit 6 can be slided in sliding slot, and lateral rotatable rotation axis 7 is equipped in slide unit 6, The rear end of rotation axis 7 and middle-end are equipped with the opposite screw thread of thread rotary orientation, and the rear end of rotation axis 7 and middle-end are threaded with one respectively A sliding block 8, the thread rotary orientation in two sliding blocks 8 is also on the contrary, just corresponding with the screw thread of rotation axis 7, so that rotation axis 7 Rotation drives two 8 relative motions of sliding block, and the left end of each sliding block 8 is rotatably fixed with first gear 9, fixes in slide unit 6 There is the first rack gear 10, the first rack gear 10 is located at the top of first gear 9, and first gear 9 and the first rack gear 10 are intermeshed, sliding block 8 can drive first gear 9 to be slided during sliding, and first gear 9 with the first rack gear 10 because being intermeshed, and first Gear 9 is rotated during sliding, and the outside of first gear 9 is hinged with first connecting rod 11, is cut with scissors on the outside of first connecting rod 11 It is connected to second connecting rod 12, the expanded support plate 13 there are two symmetrical arc is set above slide unit 6, expanded support plate 13 can only carry out lateral cunning Dynamic, the other end and expanded support plate 13 of second connecting rod 12 are hingedly fixed, and first gear 9 rotates through first connecting rod 11 and second connecting rod 12 drive expanded support plates 13 carry out lateral sliding, and expanded support plate 13 first and sliding horizontal sliding together, the second first gear 9 turn Dynamic that expanded support plate 13 is driven to be slided, the horizontal sliding of expanded support plate 13 is the synthesis of two movements, can be rapidly performed by sliding To the position of needs, to complete the expanded support to obstetrics' lower body, expanded support plate 13 is arranged rubber using the plastic sheet of mist all on the outer wall Gum cover is made, and does not injure to the lower body of puerpera, and is threadedly coupled with self-locking performance, can be very good to guarantee expanded support plate 13 Position.

13 initial position of expanded support plate is located at the lower section of seat 1, by the vertical lifting of supporting table 4, to complete expanded support plate 13 vertical lifting, expanded support plate 13 and cabinet 5 are risen through seat 1, so that expanded support plate 13 and the lower body of puerpera are located at together It on one horizontal plane, is slided by the level of slide unit 6, so that expanded support plate 13 be driven to carry out the lower internal of puerpera, passes through rotation axis 7 So that the expanded support to puerpera's lower body is rapidly completed in two expanded support plates 13, the lower body of abundant exposure puerpera facilitates and is checked for rotation, And will not block vision, can sufficiently complete the inspection to puerpera.

It is set in the slide unit 6 there are two the first lateral symmetry T-slot, the first T-type is slidably equipped in the first T-slot The upper end of block 14, the first T-block 14 through sliding and is fixed with stiffening plate 15, and the upper end of stiffening plate 15 is fixed with connecting plate 16, Connecting plate 16 is fixedly connected with expanded support plate 13, and T-block lower end is fixed with vertical vertical plate 17, second connecting rod 12 and vertical plate 17 It is hinged fixed, it can guarantee that expanded support plate 13 carries out lateral sliding by the cooperation of the first T-slot and the first T-block 14, reinforce Plate 15 and connecting plate 16 play the role of being connected and fixed, and the other end and vertical plate 17 of second connecting rod 12 are hingedly fixed, to make Obtaining the rotation of first gear 9 drives expanded support plate 13 to be slided.

The rotation axis 7 is fixedly arranged at the front end with second gear 18, and the second rack gear 19, the second tooth are engaged with below second gear 18 Item 19 is horizontally slidable, and the second rack gear 19 can drive second gear 18 to be rotated during sliding, second gear 18 Rotation will drive rotation axis 7 and rotated, to complete the expanded support of expanded support plate 13, horizontally slidable square is equipped in cabinet 5 Shape block 20, rectangular block 20 can only carry out horizontal sliding in cabinet 5, and rotatable first threaded rod 21 is fixed in cabinet 5, 20 left end of rectangular block is equipped with blind hole, and internal screw thread is equipped in blind hole, and the first threaded rod 21 is equipped with external screw thread, and internal screw thread is matched with external screw thread It closes so that the rotation of the first threaded rod 21 drives rectangular block 20 to carry out horizontal sliding, the horizontal sliding drive of rectangular block 20 the Two rack gears 19 are slided, and 19 right side of the second rack gear and rectangular block 20 are hingedly fixed, complete the second rack gear 19 and square by pin shaft Shape block 20 it is hinged, the lower end of the second rack gear 19 is fixedly connected with tension spring 22, and the other end and rectangular block 20 of tension spring 22 are fixed to be connected It connects, the second rack gear 19 is the structure that can be swung around the second rack gear 19 with 20 hinge joint of rectangular block, under the second rack gear 19 Side is equipped with cam 23, and cam 23 is in contact with the lower end surface of the second rack gear 19, and under normal circumstances, tension spring 22 pulls the second rack gear 19 are rotated around pin shaft, and under the auxiliary of cam 23, the second rack gear 19 is in contact with cam 23 always, pass through cam 23 To adjust whether the second rack gear 19 is engaged with second gear 18, cam 23 pushes the second rack gear 19 and second gear for rotation 18 when being meshed, and the rotation of the first threaded rod 21 constitutes the structure that second gear 18 rotates, and 23 highest point of cam is equipped with smooth slot, puts down When sliding slot is in contact with the second rack gear 19, the second rack gear 19 is engaged with second gear 18 at this time, carries out horizontal cunning in slide unit 6 In dynamic process, so that the second rack gear 19 and second gear 18 do not engage, the horizontal sliding for guaranteeing slide unit 6 can be very good.

Horizontal rotatable second threaded rod 24 is equipped in the cabinet 5, the second threaded rod 24 connects with 6 screw thread of slide unit It connects, the second horizontal T-slot is equipped in cabinet 5, is slidably equipped with the second T-block 25, the second T-block 25 in the second T-slot Upper end is fixedly connected with slide unit 6, and the rotation of the second threaded rod 24 constitutes the structure of the horizontal sliding of slide unit 6, the second T-slot and the 2nd T Type block 25 cooperates the horizontal sliding property that can be very good to guarantee slide unit 6, can be with during the second threaded rod 24 is rotated So that slide unit 6 carries out horizontal sliding, the horizontal sliding of slide unit 6 is to carry out the lower internal of puerpera for expanded support plate 13, in slide unit 6 In sliding process, second gear 18 is not engaged with the second rack gear 19, and being threadedly coupled has self-locking performance, can be very good to guarantee The horizontal position of expanded support plate 13.

Second threaded rod, 24 right end is fixed with third gear 26, and the lower section of third gear 26 is engaged with idle pulley 27, lazy Wheel 27 plays the role of conduction, be engaged with below idle pulley 27 can in cabinet 5 horizontal sliding the 4th gear 28, when the 4th gear 28 with idle pulley 27 be engaged when, the idle pulley 27 that rotates through of the 4th gear 28 is transferred to third gear 26, third gear 26 Rotation drives the second threaded rod 24 to be rotated, so that slide unit 6 carries out horizontal sliding, is equipped in cabinet 5 rotatable 5th gear 29, the 5th gear 29 are located on front side of the lower section of idle pulley 27, and the 5th gear 29 is coaxially fixed with first pulley 30, and first The percutaneous band connection of belt wheel 30 has the second belt wheel 31, and the second belt wheel 31 is fixedly connected with the first threaded rod 21, and the 4th gear 28 can be slided It moves to the 5th gear 29 and engages, when the 4th gear 28 is engaged with the 5th gear 29, the 4th gear 28 rotates through first Belt wheel 30 and the second belt wheel 31 drive the first threaded rod 21 to be rotated, the rotation of the first threaded rod 21 will drive rectangular block 20 into The horizontal sliding of row, to complete corresponding operation, cam 23 is coaxially connected with the 6th gear 32, and the 6th gear 32 is located at cam 23 front, third rack gear 33 is engaged with below the 6th gear 32, and 33 right end of third rack gear is fixedly connected in cabinet 5 horizontal The sliding shoe 34 of sliding, cabinet 5 is interior to be equipped with horizontal rotatable third threaded rod 35, third threaded rod 35 and 34 spiral shell of sliding shoe Line connects and composes the structure that the rotation of third threaded rod 35 drives the horizontal sliding of sliding shoe 34, when third threaded rod 35 is in the mistake of rotation It can make 34 carry out level sliding of sliding shoe in journey, the sliding of sliding shoe 34 drives third rack gear 33 to be slided, third rack gear 33 can drive the 6th gear 32 to be rotated during sliding, the rotation meeting of the 6th gear 32 so that cam 23 with one of Play rotation, thus complete cam 23 push the second rack gear 19 make the second rack gear 19 and the engagement of second gear 18 with separate, case Rotatable 7th gear 36 is equipped in body 5, the 7th gear 36 is located at 27 left side lower section of idle pulley, and the 7th gear 36 is coaxially connected with Third belt wheel 39, third belt wheel 39 are located at the left side of the 7th gear 36, and the percutaneous band connection of third belt wheel 39 has the 4th belt wheel 37, the Four belt wheels 37 are coaxially connected with the 5th belt wheel 38, and the percutaneous band connection of the 5th belt wheel 38 has the 6th belt wheel, and the 6th belt wheel is fixed on The right end of three threaded rods 35, when the 4th gear 28 is engaged with the 7th gear 36, the rotation of the 4th gear 28 will drive third spiral shell Rasp bar 35 is rotated, to complete the horizontal sliding of third rack gear 33, herein can by all belt wheels using sprocket wheel into Row substitution, when the 4th gear 28 is engaged with idle pulley 27, the 4th gear 28 is not engaged with the 5th gear 29, the 7th gear 36, and the 4th When gear 28 is engaged with the 5th gear 29, the 4th gear 28 is not engaged with idle pulley 27, the 7th gear 36, the 4th gear 28 and the 7th When gear 36 engages, the 4th gear 28 is not engaged with idle pulley 27, the 5th gear 29, and the 4th gear 28 can only be with idle pulley the 27, the 5th One of them in gear 29 and the 7th gear 36 is engaged, and can not complete to be engaged with two therein simultaneously.

4th gear, 28 right end is fixed with operating stick 40, and 40 front end of operating stick is slidably run through cabinet 5 and is placed in The right of cabinet 5, the interior locating slots 41 equipped with multiple annulars positioned at 40 outside of operating stick of cabinet 5, interior be equipped with of operating stick 40 are stretched Positioning head 42 outside operating stick 40 out, positioning head 42 and the cooperation of locating slot 41 constitute operating stick 40 and are fixed on the knot in cabinet 5 Structure, the interior fixture block 43 for being equipped with connection positioning head 42 of operating stick 40 constitute fixture block 43 and stretch out the structure that 40 position of operating stick is fixed, card Block 43 is fixed in operating stick 40 through spring 44, and positioning head 42 is ejected the structure outside operating stick 40 always by composition spring 44, In the design, than all two groups of number of rows of positioning head 42, positioning head 42 is located in different locating slots 41 quantity of locating slot 41, It can guarantee that the 4th gear 28 is engaged respectively at idle pulley 27, the 5th gear 29 and the 7th gear 36.

It is equipped with laterally rotatable shaft 45, rotation between the supporting leg 3 of the front end two and is located at the lower part of supporting leg 3, 45 upper outer circumference of shaft is fixed with first bevel gear 46, and there are two the settings of first bevel gear 46, and two first bevel gears 46 are symmetrical It is arranged between two supporting legs 3, second bevel gear 47 is engaged with above first bevel gear 46,47 upper end of second bevel gear is fixed There is rotatable 4th threaded rod 48, the 4th threaded rod 48 is threadedly coupled with supporting table 4, and the upper end of the 4th threaded rod 48 is through branch Support platform 4 is fixedly connected with seat 1, and the 4th threaded rod 48 is also two, rotates through 46 He of first bevel gear by shaft 45 Second bevel gear 47 drives the 4th threaded rod 48 to be rotated, and it is vertical that the rotation of the 4th threaded rod 48 drives supporting table 4 to carry out Sliding.

Horizontal rectangular through-hole is offered on the seat 1,5 upper surface of cabinet and expanded support plate 13 slidably pass through rectangle Through-hole, seat 1 are equipped with horizontally slidable shutter 49, and shutter 49 is horizontally slidable extremely to shut rectangular through-hole, expanded support Plate 13 and 5 initial position of cabinet are respectively positioned on the lower section of seat 1, and puerpera is sitting on seat 1, when not needing to say lower body expanded support, no It is required that expanded support plate 13 rises, whole device uses as the inspection chair usually having, when needing lower body expanded support, pulls open and block Plate 49, so that expanded support plate 13 and cabinet 5 are completed to rise.

2 lower end of the chair back is fixed with fixing axle 50, and 50 rear and front end of fixing axle is run through the chair back 2 and is respectively fixedly connected with There is a positioning card wheel 51, the right side of positioning card wheel 51 is equipped with horizontally slidable snap-gauge 52, and positioning card wheel 51 is matched with snap-gauge 52 It closes and constitutes the structure that snap-gauge 52 locks positioning card wheel 51, positioning 51 excircle of card wheel is evenly equipped with multiple latches, sets on snap-gauge 52 There is card slot corresponding with multiple latches, card slot and latch cooperate so that the located card wheel 51 of snap-gauge 52 is locked.

52 right end of snap-gauge is fixed with guide rod 53, and seat 1 is fixed with vertical guide plate 54, and 53 right end of guide rod is slidably Through guide plate 54 and pulling plate 55 is fixed with, pressure spring 56 is set on guide rod 53,56 one end of pressure spring is in contact with snap-gauge 52, presses The other end of spring 56 is in contact with guide plate 54, under the action of pressure spring 56, can be very good to guarantee the located card wheel of snap-gauge 52 51 is stuck, when needing to adjust angle, pulling plate 55 is pulled to rotate the chair back 2.

The present invention is in use, puerpera is sitting on seat 1, and the position of adjusting back 2, is adjusted to properly according to the actual needs Position completes to fix later, and lower body is adequately exposed, judges whether to need according to the actual needs by two both legs bending of puerpera Lower body is subjected to expanded support, when not needing expanded support, the present apparatus directly as check chair carry out using, when needing to lower body expanded support, Shutter 49 is pulled, it is connected with handwheel through supporting leg 3 for one end of shaft 45, by the rotation of handwheel so that 45 turns of shaft Dynamic, the rotation of shaft 45 is to drive supporting table 4 to carry out vertical sliding, and supporting table 4 is slided so that cabinet 5 and expanded support plate 13 pass through Rectangular through-hole is located at the position concordant with puerpera's lower body, is engaged by the 4th gear 28 with idle pulley 27, and the 4th gear 28 of rotation makes It obtains slide unit 6 and carries out horizontal sliding, so that expanded support plate 13 carries out the lower body of puerpera, then operating stick 40 is pushed to make the 4th tooth Wheel 28 engage with the 7th gear 36, by the rotation of the 4th gear 28 so that the 6th gear 32 of drive of third rack gear 33 rotates, from And the rotation of cam 23 is completed, cam 23 rotates so that the second rack gear 19 is engaged with second gear 18, then promotion operating stick 40 So that the 4th gear 28 is engaged with the 7th gear 36, by the rotation of the 4th gear 28 so that the second rack gear 19 slides, thus complete At sliding laterally for expanded support plate 13, the expanded support to puerpera's lower body is completed, because expanded support plate 13 is arc, so that the lower body quilt of puerpera Sufficient expanded support, and will not influence the sight of examiner.

The present invention and the prior art have the advantage that the sliding for 1) passing through shutter 49, can be using the present apparatus as general Logical inspection chair carry out using；2) expanded support plate 13 is located at the lower section of seat 1, need using when rise to the positions of needs It sets, reduces the carrying back and forth and fixation of device, save time and manpower；3) expanded support plate 13 can be completed to go up and down, and slide laterally, Horizontal sliding action, so that the lower body for carrying out puerpera that expanded support plate 13 is appropriate, will not injure puerpera；4) supporting table 4 are threadedly coupled with the 4th threaded rod 48, sliding shoe 34 is threadedly coupled with third threaded rod 35,24 spiral shell of slide unit 6 and the second threaded rod Line connection, rectangular block 20 are threadedly coupled with the first threaded rod 21, and rotation axis 7 is threadedly coupled with sliding block 8, are threadedly coupled with self-locking Property, it can be very good the stability for guaranteeing position；5) thus operation all concentrate in an operating stick 40, reduce space Position, it is known that operating procedure；6) angle between the chair back 2 and horizontal plane is adjustable, it may be possible to adjust puerpera and be in The position of the most comfortable.

Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims

1. clinical obstetrics clamp stretching apparatus, which is characterized in that including seat (1), seat (1) rear end is rotatably equipped with the chair back (2), seat (1) lower end is fixed there are four supporting leg (3), be equipped in the middle part of two supporting legs (3) of front end can vertical sliding branch It supports platform (4), supporting table (4) upper end is fixed with cabinet (5), and it is horizontally slidable in cabinet (5) to be equipped with slide unit (6), in slide unit (6) Equipped with lateral rotatable rotation axis (7), the rear end of rotation axis (7) and middle-end are equipped with the opposite screw thread of thread rotary orientation, rotation The rear end of axis (7) and middle-end are threaded with a sliding block (8) respectively, and the left end of each sliding block (8) is rotatably fixed with One gear (9) is fixed with the first rack gear (10) in slide unit (6), and the first rack gear (10) is located at the top of first gear (9), and first Gear (9) and the first rack gear (10) are intermeshed, and are hinged with first connecting rod (11), first connecting rod on the outside of first gear (9) (11) outside is hinged with second connecting rod (12), and the expanded support plate (13) there are two symmetrical arc, two expanded supports are set above slide unit (6) Plate (13) carries out lateral horizontal sliding, and the other end of second connecting rod (12) and expanded support plate (13) are hingedly fixed, and rotation axis (7) turns The dynamic structure for constituting two expanded support plates (13) and mutually moving, expanded support plate (13) and cabinet (5) can vertical sliding through seat (1)。

2. clinical obstetrics according to claim 1 clamp stretching apparatus, which is characterized in that be equipped with two in the slide unit (6) A the first lateral symmetry T-slot is slidably equipped with the first T-block (14) in the first T-slot, the first T-block (14) it is upper End is through sliding and is fixed with stiffening plate (15), and the upper end of stiffening plate (15) is fixed with connecting plate (16), connecting plate (16) and expansion Fagging (13) is fixedly connected, and the first T-block (14) lower end is fixed with vertical vertical plate (17), second connecting rod (12) and vertical plate (17) hinged fixed.

3. clinical obstetrics according to claim 2 clamp stretching apparatus, which is characterized in that rotation axis (7) front end is solid Surely have second gear (18), be engaged with the second rack gear (19) below second gear (18), the second rack gear (19) is horizontally slidable, case It is equipped with horizontally slidable rectangular block (20) in body (5), is fixed with rotatable first threaded rod (21) in cabinet (5), first Threaded rod (21) is threadedly coupled with rectangular block (20), hingedly fixed with rectangular block (20) on the right side of the second rack gear (19), the second rack gear (19) lower end is fixedly connected with tension spring (22), and the other end of tension spring (22) is fixedly connected with rectangular block (20), the second rack gear It (19) is the structure that can be swung around the second rack gear (19) and rectangular block (20) hinge joint, the second rack gear is set below (19) Have cam (23), cam (23) is in contact with the lower end surface of the second rack gear (19), and cam (23) pushes the second rack gear (19) and the When two gears (18) are meshed, the first threaded rod (21) rotation constitutes the structure of second gear (18) rotation.

4. clinical obstetrics according to claim 3 clamp stretching apparatus, which is characterized in that be equipped with water in the cabinet (5) Flat rotatable second threaded rod (24), the second threaded rod (24) are threadedly coupled with slide unit (6), and level is equipped in cabinet (5) The second T-slot, be slidably equipped with the second T-block (25) in the second T-slot, the second T-block (25) upper end and slide unit (6) are solid Fixed connection, the second threaded rod (24) rotation constitute the structure of slide unit (6) horizontal sliding.

5. clinical obstetrics according to claim 4 clamp stretching apparatus, which is characterized in that second threaded rod (24) is right End is fixed with third gear (26), is engaged with below third gear (26) idle pulley (27), and being engaged with below idle pulley (27) can be 4th gear (28) of horizontal sliding in cabinet (5), cabinet (5) is interior to be equipped with rotatable 5th gear (29), the 5th gear (29) on front side of the lower section of idle pulley (27), the 5th gear (29) is coaxially fixed with first pulley (30), first pulley (30) warp Belt is connected with the second belt wheel (31), and the second belt wheel (31) is fixedly connected with the first threaded rod (21), and the 4th gear (28) can be slided It moves to the 5th gear (29) and engages, cam (23) is coaxially connected with the 6th gear (32), and the 6th gear (32) is located at cam (23) front, the 6th gear (32) lower section are engaged with third rack gear (33), and third rack gear (33) right end is fixedly connected in case The sliding shoe (34) of horizontal sliding in body (5), cabinet (5) is interior to be equipped with horizontal rotatable third threaded rod (35), third spiral shell Rasp bar (35) is threadedly coupled with sliding shoe (34) constitutes the knot that third threaded rod (35) rotation drives sliding shoe (34) horizontal sliding Structure, cabinet (5) is interior to be equipped with rotatable 7th gear (36), and the 7th gear (36) is located at lower section, the 7th tooth on the left of idle pulley (27) Wheel (36) is coaxially connected with third belt wheel (39), and third belt wheel (39) is located at the left side of the 7th gear (36), third belt wheel (39) Percutaneous band connection has the 4th belt wheel (37), and the 4th belt wheel (37) is coaxially connected with the 5th belt wheel (38), and the 5th belt wheel (38) is percutaneous Band connection has the 6th belt wheel, and the 6th belt wheel is fixed on the right end of third threaded rod (35), and the 4th gear (28) is nibbled with idle pulley (27) When conjunction, the 4th gear (28) is not engaged with the 5th gear (29), the 7th gear (36), the 4th gear (28) and the 5th gear (29) When engagement, the 4th gear (28) is not engaged with idle pulley (27), the 7th gear (36), and the 4th gear (28) is nibbled with the 7th gear (36) When conjunction, the 4th gear (28) is not engaged with idle pulley (27), the 5th gear (29).

6. clinical obstetrics according to claim 5 clamp stretching apparatus, which is characterized in that the 4th gear (28) right end It is fixed with operating stick (40), operating stick (40) front end slidably runs through cabinet (5) and is placed in the right of cabinet (5), cabinet (5) The locating slot (41) of the interior annular equipped with multiple on the outside of operating stick (40), interior be equipped with of operating stick (40) stretch out operating stick (40) External positioning head (42), positioning head (42) and locating slot (41) cooperation constitute operating stick (40) and are fixed on the knot in cabinet (5) It is solid to constitute fixture block (43) stretching operating stick (40) position for structure, the interior fixture block (43) for being equipped with connection positioning head (42) of operating stick (40) Fixed structure, fixture block (43) are fixed in operating stick (40) through spring (44), are constituted spring (44) and are always pushed up positioning head (42) The external structure of operating stick (40) out.

7. clinical obstetrics according to claim 6 clamp stretching apparatus, which is characterized in that the supporting leg of the front end two (3) it is equipped with laterally rotatable shaft (45), shaft (45) upper outer circumference between to be fixed with first bevel gear (46), the first cone tooth It is engaged with second bevel gear (47) above wheel (46), second bevel gear (47) upper end is fixed with rotatable 4th threaded rod (48), the 4th threaded rod (48) is threadedly coupled with supporting table (4), and supporting table (4) and chair are run through in the upper end of the 4th threaded rod (48) Seat (1) is fixedly connected.

8. clinical obstetrics according to claim 7 clamp stretching apparatus, which is characterized in that offered on the seat (1) Horizontal rectangular through-hole, cabinet (5) upper surface and expanded support plate (13) slidably pass through rectangular through-hole, and seat (1) is equipped with can The shutter (49) of level sliding, shutter (49) is horizontally slidable extremely to shut rectangular through-hole.

9. clinical obstetrics according to claim 8 clamp stretching apparatus, which is characterized in that the chair back (2) lower end is fixed Having fixing axle (50), fixing axle (50) rear and front end runs through the chair back (2) and has been respectively fixedly connected with a positioning card wheel (51), The right side for positioning card wheel (51) is equipped with horizontally slidable snap-gauge (52), and positioning card wheel (51) and snap-gauge (52) cooperation constitute snap-gauge (52) card wheel (51) locked structure will be positioned.

10. clinical obstetrics according to claim 9 clamp stretching apparatus, which is characterized in that snap-gauge (52) right end is solid Surely have guide rod (53), seat (1) is fixed with vertical guide plate (54), and guide rod (53) right end slidably runs through guide plate (54) And pulling plate (55) are fixed with, it is set on guide rod (53) pressure spring (56), pressure spring (56) one end is in contact with snap-gauge (52), pressure spring (56) the other end is in contact with guide plate (54).