277results about How to "Effortless adjustment" patented technology

A universal vertebral body reduction device for orthopedic vertebral column surgery comprises a first reduction bar and a second reduction bar. The first reduction bar and the second reduction bar are connected via a connecting device, a first universal joint is fixedly welded or sleeved on the first reduction bar, and a second universal joint is fixedly welded or sleeved on the second reduction bar; one end of the connecting device is fixedly welded or inserted in the first universal joint, and the other end of the connecting device is adjustably connected into the second universal joint via a fastening device; and bottom ends of the first reduction bar and the second reduction bar are respectively fixedly connected with a first clamping device and a second clamping device which are used for being connected with an orthopedic internal fixing apparatus. The universal vertebral body reduction device is a surgical instrument which is simple and labor-saving in operation, fast and reliable in temporary fixation, and sophisticated and accurate in surgical reduction, and can meet orthopedic clinical requirements of temporary fixation and surgical reduction between bone fracture sections.

The invention discloses a drawer panel adjusting and connecting device and a connecting and demounting method thereof. The device comprises an adjusting mechanism fixedly arranged in the side wall of a drawer, a panel connecting member fixedly arranged on a drawer panel and detachably clamped in the adjusting mechanism, and a demounting hook, an eccentric adjusting wheel used for adjusting longitudinal positions of the drawer panel and left and right adjusting buttons used for adjusting horizontal positions of the drawer panel are arranged on the panel connecting member, and the demounting hook is arranged below the adjusting mechanism and bent downwards at the edge of the side wall of the drawer. According to the connecting and demounting method for the device, a front panel can be connectedly fixed on the drawer by the device, the problem of adjusting gaps above and below as well as on the left and right of the drawer panel can be solved, longitudinal gaps and horizontal positions between the front panel and the side wall of the drawer can be adjusted easily and conveniently; the demounting hook is arranged, so that mounting and demounting of the drawer and slide rails is simple, quick and convenient.

The invention discloses a planetary speed reduction type eccentricity-adjustable helical hole-milling device. The planetary speed reduction type eccentricity-adjustable helical hole-milling device is characterized by comprising a rotation system, a revolution system, a radial eccentricity adjusting system, a clamping braking system assembly and an axial feeding system. The radial eccentricity adjusting system can achieve precise trace linear eccentricity adjustment with high transmission ratio, and required input power is small. Compared with sliding block adjusting structures disclosed by existing patents, the radial eccentricity adjusting system can perform adjustment conveniently with less labor, and compared with a dual eccentric sleeve structure and an offset sliding block structure, the ratio of the size of the adjusting structure to the size of a rotation power source is greatly decreased, the occupied space is reduced, and the dead weight is reduced relatively in case of the identical material. Compared with an electromagnetic brake, the clamping braking system assembly can perform braking easily and conveniently; compared with a radial screw holding structure, the required pretightening force is small, and clamping is reliable; and compared with a worm and gear structure, self-locking never fails, and the working stability is high.

The invention discloses a device for adjusting the direction of under-arch secondary air of a W-shaped flame furnace. More than two guide blades (1) are connected with each other through a connection hinge (2), a rotation shaft (3) is arranged on each guide blade (1), the guide blades (1) are arranged between an orifice plate (5) and a water-cooling wall pipe (6) of an under-arch secondary air chamber (4) of the W-shaped flame furnace, an adjusting arm (7) is arranged on one of the guide blades (1), and a pull rod (8) is connected with the adjusting arm (7). The device can set different under-arch secondary air inclination angle according to different conditions of each burner and can adjust the under-arch secondary air inclination angle to adapt to different areas (altitudes) and different coal qualities. Under proper lower inclination angle of the under-arch secondary air, the undershoot stroke of the flame and the coal retention time are increased remarkably, and the flame filling degree and uniformity in the lower furnace are improved remarkably, thus effectively improving the burn-out rate of pulverized coal and saving energy resource by about 30 to 50%.

This new and unique adjustable cantilevered aquatic exercise device offers a clean modern appearing device for exercising on the side of a swimming pool or from the end of a diving board. By mounting two extension arms to two horizontal support arms connected and mounted to the pool deck surface by mounting plates, angle-mounting brackets or slid over the end of the diving board, a single exercise bar may be relocated between pluralities of orifices on the extension arms to achieve a wide variety of elevations to exercise at the side of a swimming pool. This device can be pivoted back from the edge of the pool and remains completely out of the water when in use, not requiring the need to be constructed from expensive materials, and may be finished with a wide variety of rust preventative and cushioned coatings.

A constant temperature mixed valve core includes a fluid switch control unit and a thermostatic control unit, wherein, the fluid switching control unit is connected together with the thermostatic control unit through a temperature conditioning mechanism of the thermostatic control unit; the fluid switching control unit includes a shell of a determined internal area, a fixed lower ceramic chip arranged in the internal area and provided with a center trepanning and at least one grooving, and an upper ceramic chip arranged in the shell internal area, rotatable on the lower ceramic chip and provided with a center trepanning and at least one grooving; a temperature regulation mechanism perforates the center of the shell and combines with the upper ceramic chip to perform operations, drives the ceramic chip to move so that the grooving of the upper ceramic chip is supposed with the grooving of the lower ceramic chip to form a state that the outside water outlet is open. The fluid switching regulator control unit is used to control the mixed water that has been completely mixed evenly and reaches the setting temperature, adjusts the opening angle of the control switch to control the output water flow of the mixed water that has been completely mixed evenly and reaches the setting temperature and the open and shut of the water output, which has features of easy modulation and long service life.

The invention discloses a force adjusting device of a high-loading rigid hanger which comprises a height adjusting pull rod and a crane boom, wherein the crane boom is connected with the height adjusting pull rod in a screw thread mode; a hanger rod of the rigid hanger to be adjusted is connected with the height adjusting pull rod through a connecting nut in a screw threaded mode; and a hydraulicjack is arranged at two sides of the height adjusting pull rod under the crane boom. According to the invention, the defects that applied force adjustment for the traditional high-loading rigid hanger is very difficult, can not be removed, and even the hanger boom and the nut screw thread are easy to damage in the adjustment process are eliminated, the high-loading rigid hanger is a labor-saving,efficient and safe mechanical device, especially the batch high-loading rigid hanger have the characteristics of convenience and rapidness, efficiency and labor reservation when the applied force is adjusted.

The invention relates to a tool-free adjusting device of a chain saw, comprising a knob platen, a driving part, an adjusting part and a permanent seat, wherein the driving part comprises a tensioning knob, a side cover and a tensioning wheel, the tensioning wheel is fixedly connected with the tensioning knob and is provided with a guide pin; the adjusting part comprises a cutting board, a chain and a tensioning block, wherein the cutting board and the tensioning block are fixed, the tensioning block is provided with a spiral groove patched with the guide pin, and the cutting board is provided with a guide slot; the permanent seat is provided with a chain wheel, a screw and a guide block patched with the guide slot; and the screw passes through the cutting board, the tensioning block, the tensioning wheel and the tensioning knob to be connected with the knob platen by the screw. The invention achieves the purposes of tensioning and loosening the chain in the mode of adjusting the tensioning knob and has more convenient operation and higher efficiency.

The invention discloses a universal loading device for a cantilever. The universal loading device comprises an X-directional feeding mechanism, a Z-directional feeding mechanism, a universal rotating mechanism and a loading mechanism; the X-directional feeding mechanism comprises an X-directional lead screw and an upright post, and the upright post can move leftwards and rightwards along the X-directional lead screw; the Z-directional feeding mechanism comprises a Z-directional lead screw and a cantilever, and the cantilever can move up and down along the Z-directional lead screw; the universal rotating mechanism comprises a universal rotating base, a second turning hand wheel and a first turning hand wheel; the first turning hand wheel is rotated to drive the universal rotating base to rotate along a first axis clockwise or anticlockwise, and the second turning hand wheel is rotated to drive a second connecting plate to rotate along a second axis clockwise or anticlockwise; and the loading mechanism comprises a loading hand wheel and a loading base, the lower part of the loading base is connected with the second connecting plate, and the loading hand wheel is rotated to drive a force application rod to move leftwards and rightwards. The universal loading device is simple in structure, convenient to operate and strong in practicability.

The invention relates to a load transverse adjusting mechanism for a bilateral half-spring type holding head, which is installed in a holding head box body of a lifting unit of a pit type car locomotive, is fixedly connected with the box body, is directly connected with a regulating unit at the end part of the holding head, and is installed on a leading screw of the regulating unit. The transverse adjusting mechanism comprises a regulating nut, a regulating nut guiding part, a guiding pipe, a guiding sleeve, a nut fixing plate, a flange plate, a compression spring and a sliding shaft. The load transverse adjusting mechanism is suitable for unload transverse adjustment and load transverse fine adjustment for holding heads of pit type car locomotives of CRH (China Railway High-Speed) trains. Proved by theoretical analysis, experimental study and multiple live synchronous lifting replacement bogie homework, the load transverse adjusting mechanism is reliable and practical in structure, safe and convenient for use, saves labor, and meets the requirements of the entire CRH synchronous car homework of the compatible type pit car locomotive in China. The mechanism is also suitable for other large-load and long-structure occasions needing transverse alignment during installation.

An adapter for the releasable and relockable coupling of an endoscope with a camera head has an inner wall and an outer wall that are connected with one another via a connecting wall extending between the inner wall and outer wall at or near their first axial ends, and which inner wall and outer wall are arranged with at least a lateral separation from one another, so that an open clearance results between the inner wall and outer wall on a second axial side that is situated opposite the first axial ends. Furthermore, the adapter comprises a coupling wall that seals a clearance enclosed by the inner wall at or near a second axial end of the inner wall, such that the clearance that is enclosed by the inner wall is open at a first axial side that is situated opposite the second axial end of the inner wall.

The invention discloses a pair of cross-shaped modular jaw angle tongs, which comprises a cross-shaped sliding table, a rotary base and an angle tongs body. The rotary base is fixed onto the cross-shaped sliding table; the angle tongs body is fixed onto the rotary base, and comprises a first support, a second support, a bench and an adjusting gear; the first support and the second support are fixed onto the rotary base; two opposite sliding blocks are arranged on the first support; the bench is arranged on the first support; two opposite arc-shaped sliding chutes are formed in two side faces of the bench; the two sliding blocks are embedded into the two arc-shaped sliding chutes; a rack is arranged on a bottom surface of the bench; an adjusting shaft is coupled onto the second support; andthe adjusting gear is fixed onto the adjusting shaft and is meshed with the rack. The pair of angle tongs provided by the invention is arranged on the rotary base, and the rotary base is arranged onthe cross-shaped sliding table, so that during punching, an angular variation in multiple directions can be realized.

The invention belongs to the field of washing machines and particularly relates to a washing machine cover body opening-closing structure and a washing machine. The washing machine cover body opening-closing structure comprises a base and a cover body covering the base and also comprises a housing arranged on the cover body, a permanent magnet and an adjusting device for adjusting the direction of the permanent magnet, wherein the housing comprises a magnetism isolating body and a magnetism conducting body, the magnetism conducting body and the magnetism isolating body jointly define a closed ring, the permanent magnet is arranged in the closed ring and rotates with the axis of the closed ring as a rotary axis, poles N and S of the permanent magnet face the closed ring, a magnetic body is arranged on the base, the adjusting device adjusts the direction of the permanent magnet to achieve attraction / separation of the housing and the magnetic body, and the cover body and the base are driven to close / open. The washing machine cover body opening-closing structure has the advantages that the opposite positions of the permanent magnet and the magnetism isolating body and the magnetism conducting body are adjusted by arranging the adjusting device and are more convenient to adjust, the problem is solved that the attraction position is difficult to open due to the structure, more effort is saved during cover body opening, the cover body is not likely to loosen after being closed, and noise is decreased.

The invention provides a seat leg support adjusting mechanism. An upper connecting plate is rotationally connected with a lower connecting plate through a fixed shaft fixed to the upper connecting plate. The fixed shaft is fixedly connected with a large coil spring. The outer end of the large coil spring is hooked to a pin fixed to the lower connecting plate. One end of the upper connecting plate is provided with convex locking teeth. A toothed plate is rotationally connected with the lower connecting plate through a hinge pin. The upper side edge of the toothed plate is provided with concave locking teeth capable of being engaged with the convex locking teeth. The lower side edge of the toothed plate is provided with a front blocking edge and a rear oblique edge. An unlocking cam is rotationally connected with the lower connecting plate through a rotary shaft. A handle is fixedly connected with one end of the rotary shaft. A shifting fork is arranged at the upper end of the unlocking cam. One side of the shifting fork can abut against the front blocking edge so as to rotate the toothed plate, so that the toothed plate is disengaged from the convex locking teeth. The other side of the shifting fork can squeeze the rear oblique edge so that the concave locking teeth can be clamped into the convex locking teeth. A convex hook is arranged at the lower end of the unlocking cam. A small coil spring is connected to the lower connecting plate through a fixed pin. The outer end of the small coil spring is buckled to the convex hook. The seat leg support adjusting mechanism is simple, convenient to use, flexible, reliable and especially suitable for seat leg support devices.

Disclosed is a flat panel display stand, comprising a base (1), a first rocker arm (2) and a second rocker arm (3), wherein one end of the first rocker arm (2) is rotatably connected to a rotary shaft (7) on the base (1), the other end of the first rocker arm (2) is rotatably connected to one end of the second rocker arm (3); and further comprising a hanging plate (22) and a connecting block (20), wherein one end of the connecting block (20) is hinged with the second rocker arm (3), the other end of the connecting block (20) is hinged with the hanging plate (22), a rotating base (4) is provided between the first rocker arm (2) and the second rocker arm (3), a lower end of the rotating base (4) is rotatably connected to the first rocker arm (2), the second rocker arm (3) is hinged with the rotating base (4) via the rotary shaft (7), a one-way bearing (8) is connected on the rotary shaft (7), an outer peripheral wall of the one-way bearing (8) is tightly fitted with an inner wall of a mounting hole of the rotary shaft (7) on the rotating base (4), and two ends of the rotary shaft (7) are fixedly mounted on two side walls of the second rocker arm (3). The flat panel display stand prevents the dead-weight of the second rocker arm (3) causing the hanging plate (22) to tilt downwards, while making adjustment of the angle of the hanging plate (22) economical on labour and convenient.

The invention relates to an elastic supporting piece of an aerogenerator unit, in particular to an elastic supporting piece of an aerogenerator. The elastic supporting piece of the aerogenerator comprises an upper hood, a lower hood and an elastomer clamped between the upper hood and the lower hood, central holes of the upper hood and the lower hood respectively penetrate through an upper mandrel and a lower mandrel which are connected through threads and press the upper hood and the lower hood, the upper mandrel is connected in match with the external thread at the lower segment of a lifting column through the internal thread in the center, the height position of the upper mandrel can be adjusted by the rotation of the lifting column, and an upper supporting plate capable of lifting along with the lifting column is mounted at the top of the lifting column. The elastic supporting piece of the aerogenerator unit can ensure that the position of the generator mounted on the upper supporting plate is finely adjusted by adjusting the vertical position and the horizontal position of the upper supporting plate, is convenient to adjust, saves labor, has high accuracy, not only can lessen the direct friction of a metal piece by arranging wearing plates at the inner side and the outer side, but also can lessen the horizontal single-side force of the elastomer so as to prolong the service life of a member.

The invention belongs to the technical field of agricultural machinery and particularly relates to a four-wheel drive multifunctional cultivating boat. The technical scheme is that the four-wheel drive multifunctional cultivating boat comprises a boat body (1), and a high-power engine (3) for providing a power source, a main clutch (5), a transmission case (6), a transmission system with a front drive axle (9) and a rear drive axle (18) which are linked together, a traveling device with four driving wheels with adjustable relevant positions, a steering system, a braking system, a power outputdevice, a suspension device and a hydraulic system are installed on the boat body (1); dual-axle four-wheel drive is realized through left and right tight-up V belts, gears or chains in a transmission way; a steering clutch device under the control of a steering wheel is linked with the differential gear of an auxiliary brake to realize pivot steering; and the positions of the driving wheels relative to the boat body are adjustable. The four-wheel drive multifunctional cultivating boat has the advantages of high power, low energy consumption, high working efficiency and light weight, is widely applicable to wet and dry continuous cropping areas in south China and rice growing areas in northeast China, and satisfies the needs of fields in plains, hills, lakesides and the like.

The invention discloses a grinding machine convenient to use. The grinding machine comprises a grinding machine body; grinding wheels are mounted at the two ends of the grinding machine body; a protection cover fixed to the grinding machine body is arranged outside the grinding wheels; first sleeves are fixed to the two sides of the lower end of the grinding machine body; vertical rods are inserted into the lower ends of the first sleeves; a cabinet body is fixed to the lower end of each vertical rod; cushioning springs arranged on the vertical rods in a sleeving mode are arranged between thefirst sleeves and the cabinet bodies; a vertical plate fixed to the cabinet bodies is arranged between the two vertical rods; a first gear is rotationally connected to the front surface of the vertical plate; a hand wheel is fixed to the front surface of the first gear; a connecting plate fixed to the vertical plate is arranged on one side of the first gear; a bolt penetrates through the connecting plate and is in threaded connection with the connecting plate; a rack is fixed to the side end of one of the first sleeves; the first gear meshes with the rack; the end, opposite to the first gear,of the bolt is in a conical shape, and the diameter of the end is smaller than the tooth pitch of the first gear; a transverse shaft is fixed to the side end of the protection cover; and the transverse shaft is sleeved with a second sleeve. The grinding machine is safe, labor-saving and convenient to use.

Disclosed is a three-shaft adjusting hanging arm joint for hanging a projector. The three-shaft adjusting hanging arm joint comprises a hanging arm fixing disk, a projector fixing disk and a three-shaft adjusting mechanism. The three-shaft adjusting mechanism comprises an upper U-shaped frame, a lower U-shaped frame, an X-shaft adjusting assembly, a Y-shaft adjusting assembly and a Z-shaft adjusting assembly, wherein the X-shaft adjusting assembly, the Y-shaft adjusting assembly and the Z-shaft adjusting assembly are installed in the upper / lower U-shaped frame. The upper U-shaped frame and the lower U-shaped frame are connected through an X-shaft and a Y-shaft, wherein the X-shaft and the Y-shaft are arranged on a cross-shaped rotating shaft assembly and are perpendicular to each other. The X-shaft adjusting assembly is installed on one side of the upper U-shaped frame, the Y-shaft adjusting assembly is installed on one side of the lower U-shaped frame, the lower U-shaped frame is connected with the projector fixing disk, the Z-shaft adjusting assembly is installed on the top surface of the upper U-shaped frame, and a Z-shaft of the Z-shaft adjusting assembly is fixedly connected with the hanging arm fixing disk. The three-shaft adjusting hanging arm joint has good stability and impact resistance, angle adjustment is accurate, adjustment is easy, convenient, rapid and accurate and saves labor, and self-locking positioning can be achieved.

The invention discloses a multifunctional water cooling device of a plastic coating machine for a protective tube of a flexible shaft. The multifunctional water cooling device comprises a water tank, rollers, a gear, a rotating shaft, a rack, a recovery tank, a translation trough, a bracket body, a water inlet pipe, roller shafts, adjusting screw rods, seat bodies, a mounting rack, studs, adjusting nuts, a pump unit, a cooler, a supporting wheel, a water collection tank, a fan and a blowing head, wherein the adjusting screw rods are arranged on the bracket body; the seat bodies are arranged on the front part and the rear part of the bracket body; the adjusting screw rods are rotationally connected with the seat bodies; the studs are inserted into the seat bodies; the rollers are arranged at the ends of the roller shafts; the rack is arranged at the bottom of the water tank; the gear is arranged on the rotating shaft and is meshed with the rack; and the blowing head is arranged on the water collection tank. According to the invention, time can be saved, production is not influenced, the device can be conveniently adjusted and saves labor in adjustment and high in accuracy of position adjustment, and a phenomenon that water in the water tank is taken with the protective tube out of the water tank to drop on the ground can be avoided, so that the field operating environment and normal operation of equipment are not influenced, and water is saved.

An accelerator pedal apparatus, in which pedal effort can be varied through length variation of a spring. Stroke of a pedal arm can be varied in accordance with inclination and body type of driver.

The invention discloses a variable-position chuck sleeve and relates to a bolt sleeve, aiming at overcoming the defects of the existing hexagon bolt sleeves that the weight is large, the size is large and the carrying is uneasy. According to the technical scheme, the variable-position chuck sleeve comprises a chuck, a wire coiling, an adjusting knob and a handle which are connected in sequence; each jaw is arranged in 2-6 jaw slots of the chuck, the end face thread of the wire coiling is meshed with jaw teeth on the end face of the jaw, the end face thread of the wire coiling is equidistance involute thread and meets equal progression property and equal distance property, the shape of the jaw teeth is the same as the tooth slot shape of the end face thread of the wire coiling, the jaw teeth can slide in the tooth slot of the end face thread of the wire coiling, the wire coiling rotates to drive the jaw to move along the radial direction of the chuck, the other end of the wire coiling is meshed with the adjusting knob, and the wire coiling rotates together with the adjusting knob to drive the jaw to move along the radial direction of the chuck; and the small shaft end of the handle penetrates through the centers holes of the adjusting knob and the wire coiling to be meshed with the small shaft end of the chuck, and the handle rotates together with the chuck. The sleeve has the beneficial effects of being applicable to outside and inside hexagonal bolts, and convenient and labor-saving in adjustment.

The invention relates to a simple type television auxiliary teleswitch, comprising a base body and a control panel consisting of a power button switch, a reset button, channel up-down buttons and volume higher-lower buttons, which is used as a subsidiary teleswitch of the television master teleswitch when working, just pressing the power button switch to execute on / off actions, pressing the channel up-down buttons to search channels upwards or downwards, pressing the volume higher-lower buttons to increase or reduce volume, pressing the reset button to stop working and give way to the master teleswitch. The simple type television auxiliary teleswitch of invention has advantages that function is simple, operation is convenient, which takes less time and labor, people just have to master operations like startup, shutdown, channels selection and volume adjustment, which is specially suitable for younger and elder, and strong practicability is provided.

The invention relates to a light-emitting vaginal dilator. By adoption of the light-emitting vaginal dilator, the technical problems of no own light source and the like in the existing vaginal dilator are solved. The light-emitting vaginal dilator comprises an upper half body with a window, wherein the upper half body is provided with an upper blade and an upper handle; the lower half body is hinged to the upper half body and is provided with a lower blade and a lower handle; a positioning mechanism is arranged between the upper handle and the lower handle; an installing gap is arranged on the upper blade and is internally provided with a lamp holder shell; the lamp holder shell is provided with a light transmitting hole positioned at the inner end of the lamp holder shell; the lamp holder shell is internally and fixedly provided with a light emitting body and a battery; the light emitting body is connected with the battery, and a toggle switch is arranged between the light emitting body and the battery. The light-emitting vaginal dilator has the advantages that any external light source does not need to be used, the operation is easy, the entering of the sight line and surgical instruments is not easily blocked, starting or stopping of the light emitting body can be realized, the fixing of the light emitting body is firm, the illuminating angle is conveniently adjusted, and the battery is conveniently replaced, so that the use is convenient; by utilization of the lever principle, the adjustment of the opening angle is more labor-saving.

The invention discloses a marine jib crane luffing structure. Three booms are arranged at the front end of a platform through rotating shafts, three tripods are arranged at the rear end of the platform, a winding drum which is powered by a motor is arranged at the top end of each tripod, a steel rope on the winding drum is fixedly connected with the top end of each boom, three bottom sliding mechanisms are arranged in the middle of the platform, and are connected with telescopic oil cylinders through rotating shafts, and the top end of each telescopic oil cylinder is connected with the middle of each boom correspondingly one by one. According to the marine jib crane luffing structure disclosed by the invention, a steel rope luffing mechanism and a telescopic cylinder luffing mechanism are matched with each other for use, so that relatively light objects can be lifted by directly using the steel rope luffing mechanism when a crane lifts the relatively light objects, and when the lifted objects are overweight, firstly the telescopic cylinder luffing mechanism can be used for luffing lifting, and then the steel rope luffing mechanism is appropriately adjusted to be matched with the telescopic cylinder luffing mechanism, so as to avoid the excessive wear of a steel rope.

The invention discloses a deformation correcting device for welded tubes. The deformation correcting device is convenient to use and good in deformation correcting effect. The device comprises a portal frame arranged on an installing base, a movable base which can move in the vertical direction is movably arranged in the portal frame, and a rotating shaft is arranged on the movable base. The rotating shaft is sleeved with a main worm gear and a rotating base, the movable base is provided with a main worm driving the main worm gear, and a through hole is formed in the center of the rotating base and used for allowing the welded tube to penetrate. Three or more shaping assemblies are evenly distributed in the circumferential direction of the through hole in the rotating base. Each shaping assembly comprises a fixing plate arranged on the rotating base, the fixing plates are connected with sliding bases through bolts, wherein the sliding bases move in the radial direction of the through hole, and shaping rollers are arranged on the sliding bases and are perpendicular to the moving direction of the sliding bases and rotate freely. Limiting pressing strips are arranged on the parts, on the two sides of each sliding base, of the rotating base. The shaping faces of the shaping rollers are circular arc surfaces of which the diameter is the same as the diameter of the peripheries of the welded tubes, and the total circular arc length of all the shaping faces accounts for over 80% of the length of the peripheries of the welded tubes.

The invention relates to a body posture adjusting wheelchair used for dysphagia ingestion training. The body posture adjusting wheelchair comprises a wheelchair frame, a headrest mechanism, a backrest mechanism, a seat mechanism and a foot support mechanism, wherein the headrest mechanism comprises a headrest, an upper bracket, a lower bracket and two clamp plates; the backrest mechanism comprises a backrest frame, safety protection boards on the left and right sides and a backrest inclined air cylinder; the seat mechanism comprises a seat cushion frame and a seat cushion rotation air cylinder; the foot support mechanism comprises a foot support frame, a pedal, left and right leg baffles and a foot support lifting air cylinder. With the body posture adjusting wheelchair, patients can be subjected to multi-part (head flexion and extension rotation, back lateral pitching composite posture and leg inclining posture) and multi-angle body posture adjustment on the wheelchair, so that the patients can adopt the different ingestion postures according to the dysphagia degree in the ingestion training process, then different body postures are adopted, and thus the patients can safely and effectively eat food.