CN2402296Y - Driving apparatus for spine correction traction bed - Google Patents

Abstract

The utility model relates to a driving apparatus for a spine correction traction bed, which is an electromagnetic driver formed by an embedded type electromagnet. The end of a coil is provided with a shaft sleeve, a leading screw and a motor which are matched with the shaft sleeve, and the other end of the leading screw is arranged on a frame; the outer end of an iron core is connected with driven members; an iron core of a head chest plate driver is connected with a guideway by a pulley and provided with a return spring; two drivers of a hip leg plate are vertically positioned at both sides of an X axis, and the top of the iron core is hinged with the hip leg plate; the heights of two coils can be adjusted and driven by one leading screw, and the bottom of the hip leg plate is provided with an electromagnetic lockout mechanism. The utility model without a huge and heavy permanent magnet has the advantages of concise structure, high utilization rate, sensitive operations and cost reduction.

Description

The driving device of positive ridge extension table

This utility model relates to the skeleton orthopedic instruments, particularly a kind of driving device of the positive ridge extension table to spinal column dragging treatment.

CN1149443A, the patent application document of " three dimensional tracting bed for spine " by name has been announced a kind of physical therapy apparatus for treatment prolapse of lumbar intervertebral disc, cervical spondylosis.The bed surface of this extension table is made up of cephalothorax plate and two main body panel of buttocks and legs plate.Establish the box-shaped main frame under the cephalothorax plate, guide rail is established at the main frame top; The affixed long framework in buttocks and legs plate bottom, the axis that the segmental support of long framework and its below is articulated in extension table is (X-axis is promptly by the center line of the head of a bed to tailstock) on the X-axis, long framework is hinged with main frame again, the vertical Y-axis that claims with X-axis of its hinge; The buttocks and legs prelaminar part is established podical plate and is articulated on the long framework, and its hinge is vertical with bed surface to claim Z axle.The cephalothorax plate can move back and forth along X axis, and the buttocks and legs plate can turn an angle for axle by X, can also turn an angle for axle by Y, and podical plate can turn an angle for axle by Z.This bed also is provided with cervical vertebra slow traction device and be connected clutch soon at a slow speed, and slow traction is the poplar of the volume at a slow speed device of a driven by motor, and pull rope turns to by deflecting roller and causes the head of a bed, and end is established hook, hook and the cervical vertebra that can draw the people after the helmet is connected.Speed is connected clutch, and the pull rope that this slow lead and cephalothorax plate driving mechanism are drawn combines, and quickens for slow lead in short-term, realizes the sudden change traction.Technique scheme if can then can be treated prolapse of lumbar intervertebral disc and cervical spondylosis effectively in realization as described in it.But the driving device of this technical scheme exists major defect to make its described function be difficult to realize.Its cephalothorax plate driving device is permanent magnet and the electric magnet that is loaded in the box-shaped shell, and the two end face is relative.Electric magnet is switched on, and the latter two repel each other, and drive the cephalothorax plate and move to the head of a bed, carry out traction therapeutic; After the outage, permanent magnet attracts electric magnet to reset.As is known, the active force between two magnets and its distance dependent, and can strengthen and decay rapidly with distance.Therefore to make this repulsion be enough to drive the cephalothorax plate and on human body, the volume of permanent magnet must be quite huge, be difficult to be loaded in the main frame, not only the difficulty of Zhi Zaoing is big, and will overcome the huge weight of self in action, consumes most of energy, capacity usage ratio is very low, obviously improve the cost and the deadweight of product,, influence its sensitivity, realize function conversion exactly with the loose complexity of clutch configuration of this driving device double as sudden change traction.On the slide block by permanent magnet driving traction the deflecting roller that passes slow lead is housed, slide block is far apart from the hook of pull rope terminal, and slide block is greatly weakened the active force of rope, and being difficult to realizes suddenling change draws (being unexpected speed change traction).The buttocks and legs plate is along the upset swing of X-axis, be that the swing arm that electric magnet is stirred and long framework is affixed that is placed on the dovetail groove is finished, the hinged ferromagnet in swing lower end, respectively there is an electric magnet ferromagnet both sides, each adjusts itself and ferromagnet, distance by leading screw two electric magnet, leading screw and motor thereof are loaded on the slide plate, and slide plate is loaded on the dovetail groove, adjust its position by leading screw, motor.This driving device is complex structure not only, and difficulty of processing is big, and cephalothorax plate action is by the swing arm upper end torsion of this plate to be finished, and starting torque is big, influences its motility, and consumes energy is also big.

The purpose of this utility model provides a kind of driving device of positive ridge extension table, this driving device needn't use permanent magnet, and can guarantee that driving force can not decayed in whole distraction procedure, solved use huge electric magnet and permanent magnet brought from great, capacity usage ratio is low, the shortcoming that cost is very high.This driving device structure letter refining is compact, is easy to make produce, and the buttocks and legs plate is simplified along the driving device structure of X-axis upset, and starting torque is little, and is highly sensitive, cuts down the consumption of energy.

For achieving the above object, this utility model is taked following design: the driving device of positive ridge extension table is the electromagnetic driver based on embedded electric magnet, the coil of this driver and iron core place a band guide rail or not in the framework with guide rail, the tail end of coil is provided with axle sleeve, a side that connects above-mentioned axle sleeve and framework with a rhizoid thick stick, leading screw is by motor-driven, and iron core the inner inserts in the core hole of coil, the outer end be driven parts and be connected; Be located in the driver frame under this plate as the driver of cephalothorax plate, and coil is loaded on the guide rail of framework, the direction of guide rail is consistent with the cephalothorax plate direction of motion, iron core links to each other with guide rail by the pulley on the pulley plate, pulley plate is connected with back-moving spring with the framework that is positioned at the iron core end, iron core top is provided with upper plate, and upper plate is connected with the bracket of cephalothorax plate bottom; Segmental support upper edge X-direction is provided with 2 body cradles, the buttocks and legs plate is articulated in its top, the buttocks and legs plate is provided with 2 electromagnetic drivers and is located at two body cradle line both sides symmetrically, 2 coil bottom link to each other with connecting plate, the connecting plate center is provided with axle sleeve, leading screw connects this axle sleeve and segmental support bottom, establishes electromagnetic clutch on segmental support top, and buttocks and legs plate bottom is provided with the location connecting plate with this clutch coupling.Described electromagnetic clutch is to make electromagnet core place a quadrilateral frame, and the iron core top is provided with latching, and this latching passes a guide pin bushing that has spring, and guide pin bushing is loaded on the framework.

The driving device of this positive ridge extension table, its main body is actual to be the bigger embedded electric magnet of a power, its coil is loaded on the guide rail of framework, can install the pulley with guide rail in case of necessity on coil.In order to protect coil and easy for installation, generally coil is embedded in the tetragon frame, this frame has two limits consistent with coil core hole direction, and pulley or slide block can be installed on this limit, also is loaded on the frame at the axle sleeve of coil tail end setting.Leading screw is rotated by driven by motor, can adjust the position of coil on guide rail.Coil-end identity distance iron core outer end is near more, and the stroke of iron core is short more.So both adjusted the stroke of iron core, the also corresponding stroke that is driven parts such as cephalothorax plate of having adjusted.As the driver of cephalothorax plate, its iron core links to each other with guide rail by pulley, and the direction of guide rail is consistent with the cephalothorax plate direction of motion, and the direction of motion of iron core is the direction of motion of cephalothorax plate.Behind coil electricity, produce huge magnetic attraction, iron core overcomes the elastic force of back-moving spring, all enters in the coil core hole, thereby drives the motion of cephalothorax plate, plays the traction therapeutic effect.This utility model is a driver entity with embedded electric magnet, because of its iron core the inner is embedded in the coil core hole all the time, in whole drawing-in motion, iron core is subjected to the influence of coil field of magnetic forece all the time, not only can not produce the magnetic force attenuation problem, and because of the constantly close coil in iron core outer end, the position that iron core is influenced by magnetic force continues to increase, magnetic force also can strengthen, so this magnetic driver has advantage safely and efficiently.This utility model need not to use permanent magnet, has solved the problem that must use huge permanent magnet just can move reluctantly in the prior art, and has used huge permanent magnet can bring deadweight too big, and capacity usage ratio is low, the problem that cost is very high.Particularly use huge permanent magnet to bring a difficult problem to transporting, deposit, manufacture each link.Adopting this utility model to make driving device then can make an above-mentioned difficult problem be readily solved.And the more simple refining of this driving device structure is compact by contrast, is easy to manufacture.The driver that the buttocks and legs plate is rotated along X-axis is located at the both sides of X-axis respectively, 2 electromagnetic core tops and buttocks and legs plate are hinged, the lower end of iron core is arranged in the coil core hole, when two iron core weight are similar, 2 iron cores that hang on the buttocks and legs plate are equilibrium-like, make its surface horizontal, at this moment, the pin-and-hole of location on the connecting plate is just relative with the latching of electromagnetic clutch on the segmental support, and the spring in the clutch guide pin bushing advances latching in the pin-and-hole of location connecting plate, connecting plate is locked, thereby also with the locking of top buttocks and legs plate, the buttocks and legs plate can be stablized and keeps horizontal, or is that axle rotates with Y with segmental support, tailstock is overturn up or down, when needs buttocks and legs plate with X is axle one-tenth angular oscillatory motion, start the driver motor by controller, leading screw is rotated forward or backwards, regulate the length that iron core enters the coil core hole, thereby adjust the iron core stroke.Make the electromagnetic clutch conducting then, its latching withdraws from the pin-and-hole of location connecting plate and enters guide pin bushing, makes a side driver coil connect electricity, and the decline of armature (iron) core, draws this side buttocks and legs plate to descend, and the opposite side of this plate rises; Otherwise give the coil switch power of other side driver, this plate again can be to other commentaries on classics of turning on one's side.Hang shape and keep balance because 2 iron cores are, therefore, making one of them iron core descend required magnetic attraction can be not excessive, and this driver is structure letter refining not only, and required starting torque is little, and is highly sensitive, has the few advantage of power consumption.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is this utility model main frame position structural representation

Fig. 2 is this extension table electromagnetic clutch structural representation

Fig. 3 is this extension table buttocks and legs plate driving mechanism structure sketch map

Fig. 4 is this extension table head of a bed position cut-away view

Fig. 5 is this extension table bundling belt driving mechanism structure sketch map

The driving device of the positive ridge extension table of this utility model such as Fig. 1, Fig. 2, shown in Figure 3, this driver is the electromagnetic driver based on embedded electric magnet, the coil 11 of this driver and iron core 18 place a band guide rail 16 or not with when straight motion (iron core heavy can not be with guide rail) in the framework of guide rail, the tail end of coil is provided with axle sleeve 12, a side that connects above-mentioned axle sleeve and framework with a rhizoid thick stick 13, leading screw is driven by motor 14, iron core 18 the inners insert in the coil core hole, the outer end be driven parts and be connected; Be located in the main frame 4 under this plate bottom as the driver 1 of cephalothorax plate 2, and coil 11 is loaded on the guide rail 16 of framework 15, the direction of guide rail is consistent with the cephalothorax plate direction of motion, iron core links to each other with guide rail 16 by the pulley on the pulley plate 181, pulley plate is connected with back-moving spring 19 with the framework that is positioned at the iron core end, iron core top is provided with upper plate 17, and upper plate is connected with the bracket 21 of cephalothorax plate bottom; The segmental support 32 usefulness hinges 31 of buttocks and legs plate 3 bottoms are connected in the top of main frame, and twisted axis 31 is Y-axis.Segmental support upper edge X-direction is provided with 2 body cradles 33, and the buttocks and legs plate is articulated in its top, and this hinge is X-axis.The buttocks and legs plate is provided with 2 electromagnetic drivers 71,72, be located at 2 body cradles, 33 line both sides symmetrically, the buttocks and legs plate at driver iron core and top is hinged, and 2 coil bottom link to each other with connecting plate 73, the center of connecting plate is provided with axle sleeve, and leading screw 74 connects this axle sleeve and segmental support bottom; Leading screw is driven by motor 75.Like this, a motor can drive the elevating movement simultaneously of 2 coils, to adjust the angle of buttocks and legs plate swing.Establish electromagnetic clutch 6 on segmental support top, buttocks and legs plate bottom is provided with the location connecting plate 77 with this clutch coupling.When the buttocks and legs plate was in level, the latching of electromagnetic clutch can enter in the pin-and-hole of location connecting plate, and the buttocks and legs plate is locked.Described electromagnetic clutch makes electromagnet core 63 place a quadrilateral frame 64 as shown in Figure 2, and the iron core top is provided with latching 65, and this latching passes a guide pin bushing 66 that has spring 67, and guide pin bushing is loaded on the framework.Positive ridge extension table cervical traction mechanism as shown in Figure 1.Wherein slow traction mechanism is identical substantially with the structure of prior art, and it is by leading hoist engine 5 slowly, and pull rope 51, hook 52 and several pulleys constitute.This utility model will lead hoist engine slowly and be located at main frame near the head of a bed one end, can shorten the length of pull rope, strengthen the traction dynamics.An affixed lower plate 182 below the iron core of cephalothorax sheet drive, lower plate is provided with pin-and-hole; Install electromagnetic clutch 61 below lower plate, its latching mates with the pin-and-hole of lower plate and is corresponding, and this clutch is loaded on the main frame by guiding mechanisms such as pulley 62, guide rail, guide posts; Install guide post 615 on main frame top near the head of a bed 8 places, on guide post, install sliding sleeve 613 and back-moving spring 614, the bottom of sliding sleeve is provided with deflecting roller 53, pull rope 51 passes this deflecting roller and guides the head of a bed 8 into, and sudden change pull rope 611 1 ends connect sliding sleeve and are connected with clutch 61 by the pulley 610,612 that is positioned at the main frame rear end.When plastron was made drawing-in motion right overhead, controller made clutch 61 break away from lower plate, the pull rope of promptly not undergoing mutation action; When implementing to suddenly change traction, clutch is connected with lower plate, starts electromagnetic driver 1, and leads hoist engine 5 slowly, and pull rope 51 ends hook is led parts (helmet) with quilt and is connected, and pull rope is tightened; Iron core 18 drives lower plate 182 and clutch 61 actions simultaneously, sudden change pull rope 51 drives sliding sleeve rapid movement rearward, pulley 52 pulling traction ropes 51 upper ends on sliding sleeve hook, quick acting (because of pull rope in addition end be hoist engine, and this end can not adverse movement).The stroke of sudden change traction is short, and the time is short, and speed is fast, the treatment of suitable some cervical spondylosis of formed traction skill.It is nearer that this mechanism acts on this rope hook end of moment of pull rope 51, thereby can make the sudden change pull strength comparatively sensitive and effectively to the effect of this rope.In order to adapt to the different situations of different people in the cervical traction, adjust traction angle, can in the standpipe of the head of a bed 8, install leading screw 81 and axle sleeve 83,84, screw-casing 85 is established at the leading screw middle part, install angle pulley 86 on the screw-casing, standpipe is offered gathering sill along the leading screw trend, and pulley is moved up and down in groove.

Positive ridge extension table is equipped with bundling belt at cephalothorax plate, buttocks and legs plate, and existing extension table all adopts the manual binding method that human body is fixed thereon.But the pull strength of extension table is big, speed is very fast, and not firm meeting is dampened human body skin as bundle.This utility model has adopted the bundling belt electromagnetic drive mechanism, as shown in Figure 5.The coil 96 of bundling belt electromagnetic driver is embedded in the flute profile framework 94, the flute profile framework is fixed in the bed board bottom, L shaped connecting plate 95 is equipped with on its iron core top, on the axle of leading block 93 is loaded at the bottom of the bed board, its wheel rim mates and is connected with the sidewall of connecting plate 95, connecting plate is provided with back-moving spring 98 and links to each other with bed board, and connecting plate is connected with bundling belt 91 1 ends by connector, and bundling belt is guided the bed board upper surface into through slewing rollers 92.

Claims (4)

1, a kind of driving device of positive ridge extension table, it is characterized in that: this driving device is the electromagnetic driver based on embedded electric magnet, the coil of this driver and iron core place a band guide rail or not in the framework with guide rail, the tail end of coil is provided with axle sleeve, a side that connects above-mentioned axle sleeve and framework with a rhizoid thick stick, leading screw is by motor-driven, and iron core the inner inserts in the core hole of coil, the outer end be driven parts and be connected; Be located in the driver frame under this plate as the driver of cephalothorax plate, and coil is loaded on the guide rail of framework, the direction of guide rail is consistent with the cephalothorax plate direction of motion, iron core links to each other with guide rail by the pulley on the pulley plate, pulley plate is connected with back-moving spring with the framework that is positioned at the iron core end, iron core top is provided with upper plate, and upper plate is connected with the bracket of cephalothorax plate bottom; Segmental support upper edge X-direction is provided with 2 body cradles, the buttocks and legs plate is articulated in its top, the buttocks and legs plate is provided with 2 electromagnetic drivers and is located at two body cradle line both sides symmetrically, 2 coil bottom link to each other with connecting plate, the connecting plate center is provided with axle sleeve, leading screw connects this axle sleeve and segmental support bottom, establish electromagnetic clutch on segmental support top, buttocks and legs plate bottom is provided with the location connecting plate with this clutch coupling, described electromagnetic clutch is to make electromagnet core place a quadrilateral frame, the iron core top is provided with latching, and this latching passes a guide pin bushing that has spring, and guide pin bushing is loaded on the framework.

2, the driving device of positive ridge extension table according to claim 1 is characterized in that: the described hoist engine (5) that leads slowly is located at main frame near the head of a bed one end; An affixed lower plate (182) below the iron core of cephalothorax sheet drive, lower plate is provided with pin-and-hole; Install electromagnetic clutch (61) below lower plate, its latching mates with the pin-and-hole of lower plate and is corresponding, and this clutch is loaded on the main frame by guiding mechanism; Install guide post (615) on main frame top near head of a bed place, on guide post, install sliding sleeve (613) and back-moving spring, the bottom of sliding sleeve is provided with deflecting roller, pull rope (51) passes this and takes turns and guide the head of a bed into, and sudden change pull rope (611) one ends connect sliding sleeve and pulley (610), (612) by the main frame rear end are connected with clutch (61).

3, the driving device of positive ridge extension table according to claim 1, it is characterized in that: install leading screw (81) and axle sleeve (83,84) leading screw middle part in the standpipe of the described head of a bed and establish screw-casing (85), install angle pulley on the screw-casing, standpipe is offered gathering sill along the leading screw trend.

4, the driving device of positive ridge extension table according to claim 1, it is characterized in that: the coil 96 of the electromagnetic driver of described bundling belt) be embedded in the flute profile framework (94), the flute profile framework is fixed in the bed board bottom, L shaped connecting plate (95) is equipped with on its iron core top, the axle of leading block 93 is loaded on the bed board bottom, its wheel rim mates and is connected with the sidewall of connecting plate (95), connecting plate is provided with back-moving spring (98) and links to each other with bed board, connecting plate is connected with bundling belt by connector, and bundling belt is guided the bed board upper surface into through slewing rollers.

Images