41results about How to "Wide range of rotation angles" patented technology

The invention discloses a lifting hinge structure. The lifting hinge structure comprises an upper sleeve, a lower sleeve, a connecting rod, a first hinge piece and a second hinge piece. A sealed sleeve bottom is arranged on the upper sleeve. An inner gear is arranged on the inner cylinder wall of the upper sleeve. A stepped hole is formed in the lower sleeve cylinder. A big hole and a small hole in the stepped hole are eccentrically arranged. The connecting rod comprises an abutting portion, a gear portion and a guide column which are fixedly connected into a whole from top to bottom. The guide column of the connecting rod is spirally connected into the small hole of the stepped hole in the lower sleeve and drives the first hinge piece to drive the upper sleeve on the first hinge piece to rotate. Due to the fact that the inner gear on the inner cylinder wall of the upper sleeve and the gear portion on the connecting rod are eccentrically arranged and internally engaged with each other, the gear portion on the connecting rod rotates to drive the connecting rod to spirally rotate up and down in the small hole of the lower sleeve, the abutting portion on the connecting rod abuts against the sleeve bottom of the upper sleeve, and the upper sleeve and the first hinge piece fixedly connected with the upper sleeve ascend and descend in the axial direction. By the adoption of the lifting hinge structure, the large-range angle rotation can be achieved, the structure is simple, and disassembly, assembly and operation are facilitated.

The invention relates to an all-purpose turning joint which is a furniture member and comprises a right connecting plate and a left connecting plate, each of the two connecting plates is provided with a matching bearing surface and a gear surface at one end, the two connecting plates can enlarge the rotation angle through a plurality of steps of connecting device, each step of connecting device comprises an upper gear form plate and a lower gear form plate, the two ends of the upper gear form plate and the lower gear form plate are all provided with a bearing surface and a gear surface, the corresponding upper gear form plate and the lower gear form plate are movably connected through a rotation shaft; when the two connecting plates are stressed by the rotating force from the respective gear faces, the rotating force is stably transferred through the engaged gear surface and the limiting effect between the neighboring rotation shafts, and thus, the rotation angle between the two connecting plates is adjustable within the range of the gear face. Each rotation connecting point is all designed to the connection with the connecting plate, the connecting device, a liner bushing, an elastic gasket through the rotation shaft, and thus, the rotation position of a hinge can stop at any angle. Compared with the existing art, the invention has the advantages that the range of the rotation angle is large, the rotation position can stop at any angle, the rotation is stable, noise-free and the bearing strength is large, etc.

The invention discloses a trainer facilitating ankle pump motion of foot drop patients. The trainer comprises a horizontally-arranged base, wherein a rotational supporting plate is arranged at one end, along the length direction of the base, of the base; sliding rails are arranged along the length direction of the supporting plate; a connecting plate is connected onto the sliding rails in a sliding manner; a training frame is also arranged between the base and the supporting plate; one end, along the length direction of the training frame, of the training frame is connected with the connecting plate, and the other end of the training frame is rotationally connected with the base; an operating rod for a patient to operate is arranged at one end, away from the base, of the supporting plate; a fixer for fixing feet of the patient is arranged on the training frame. According to the trainer disclosed by the invention, embolism of heart, brain and lung, caused by lower limb venous thrombosis, can be effectively prevented; meanwhile, recovery of functions of lower limbs is facilitated; the foot drop patients can conveniently do rehabilitation training, and can actively participate in own limb rehabilitation; high comfortableness is realized, the cost is reduced, and the working efficiency is improved.

The invention relates to an air guide mechanism of an indoor unit of an air conditioner, which comprises an air guide door and is characterized in that the air guide mechanism further comprises a motion mechanism capable of leading the air guide door to expand, contract, swing and rotate, the motion mechanism arranges a first stepping motor and a second stepping motor in a case, wherein, the first stepping motor is meshed and connected with a swing gear through a first gear mechanism, one end of a swing foot is rotatably connected at one end of the swing gear, a guide pin on the swing foot and a guide slot in an outer cover are in guide matching, the second stepping motor is meshed and connected with a third gear mechanism in the swing foot through a second gear mechanism in the swing gear, a terminal for connecting with the air guide door is mounted in a shaft hole at the lower end of the swing foot, and a gear at the other end in the third gear mechanism and the terminal are connected together, so that air guide blades can carry out telescopic motion and rotate, the guide effect of air is greatly enhanced and the air can be delivered to the further place; furthermore, the range of rotational angle is wider, and dead angles are greatly reduced.

The invention discloses a mechanical limiting structure. The mechanical limiting structure is applied to industrial robot equipment, photoelectric precision tracking equipment, radar equipment and other large or relatively large equipment with a rotating shaft, a precision device, and high safety requirements and the like. The problem to be solved is that the large or relatively large equipment with the rotating shaft series need to have the mechanical limiting structure with good buffering effect and the shaft with wide range of rotating angles, but the shaft bears larger curving force vertical to the rotating axis due to nonsymmetrical wear-stress during the limiting buffering process. By means of the isomerization design of two buffering module mechanisms and the isomerization design oftwo ends of a collision block, the effect that the rotating shaft only bears the torsion load during the limiting buffering process is realized, and the safety and reliability of the system are improved on the basis of ensuring wider range of rotating angle of the rotating shaft of the mechanical limiting mechanism.

The invention provides a spring energy storage device for an on-load tap-changer, and relates to a spring energy storage device. The spring energy storage device aims to solve the problems that according to an existing over-dead-point type spring energy storage device, the rotation angle range of tension spring drive components is small, and therefore the reliability of the spring energy storage device is low. A second transmission shaft is installed on the lower portion of a side plate through a first bearing block. The second transmission shaft and a third transmission shaft are coaxially arranged. A transmission gear is installed on the second transmission shaft and located between the side plate and a switching support plate. The end face, facing a transmission shifting block, of the transmission gear is provided with a first shifting column and a second shifting column. The first shifting column and the second shifting column are integrated with the transmission gear. The second transmission shaft is fixedly sleeved with one end of a switching shifting block. A transmission column is horizontally and fixedly installed to the other end of the switching shifting block. The transmission column is sleeved with a transmission shaft sleeve and a rotating sleeve in sequence. One end of a tension spring is installed on the transmission shaft sleeve, and the other end of the tension spring is fixed through a fixing column. Two limiting shaft sleeves are located on the periphery of a limiting wheel. The spring energy storage device is used for the on-load tap-changer.

The invention provides a universal swing machining handpiece for a machine tool. The universal swing machining handpiece comprises a connecting structure used for being connected with the machine tooland a universal machining handpiece body arranged on the connecting structure, wherein the universal machining handpiece body comprises a universal mechanism and handpiece main bodies arranged on theuniversal mechanism; the universal mechanism comprises a first steering mechanism, a second moving mechanism and a third moving mechanism which can realize three-dimensional motion; and the first steering mechanism, the second moving mechanism and the third moving mechanism are adopted so that the machining handpiece can realize three-dimensional motion, in addition, through the designed liftingof the connecting structure and rotation of a precise indexing table, in match with rotation of rotating shaft joints, the rotating angle ranges of the handpiece main bodies can be greatly enlarged, universal rotation with practical significance is realized, and thus the device is higher in practicability and suitable for large-scale popularization.

The invention provides a universal oscillating processing head for a machine tool, including a connection structure for connecting with a machine tool, and a universal processing head arranged on the connecting mechanism; the universal processing head includes a universal mechanism, and a machine head arranged on the universal mechanism; the universal mechanism includes a first steering mechanism capable of three-dimensional movement, a second moving mechanism, and a third moving mechanism; adopting the first steering mechanism, the second moving mechanism, The third moving mechanism can not only realize the three-dimensional movement of the processing head, but also the lifting and lowering of the designed connection structure, the rotation of the precision indexing table, and the rotation of the rotating shaft joint can greatly increase the rotation angle range of the machine head body. Universal rotation with practical significance makes the present invention more practical and suitable for mass promotion.

The invention discloses an isolation curtain wall for building intelligent installation engineering, which comprises a first wall and a second wall. Two L-shaped plates are fixedly connected to the left side of the rear end of the first wall. The right side of the rear end of the wall is fixedly connected with two clamping plates, and a matching clamping mechanism is provided between the clamping plates and the L-shaped plate, and the middle part of the front end of the first wall is fixedly connected with a support Rod, the front end of the support rod is rotatably connected to the second wall, the first wall is provided with an adjustment mechanism for adjusting the angle of the second wall, the first wall and the second wall There is a moving mechanism between them. The invention saves time and effort during installation, has a wide range of rotation angles, and is convenient for handling and moving.

The invention provides a rotating mechanism used for connecting a platform service basket to a derrick in a rotatable mode. The rotating mechanism comprises a fixed base, a rotating shaft, a speed reduction fluted disc and a drive mechanism. The fixed base is fixed to the derrick. The rotating shaft is vertically arranged on the fixed base in a rotatable mode. The platform service basket is fixedly connected with the rotating shaft. The speed reduction fluted disc is fixed to the rotating shaft. The corresponding circle center of the speed reduction fluted disc coincides with the central line of the rotating shaft. The drive mechanism is arranged on the fixed base and used for driving the speed reduction fluted disc to rotate so as to drive the rotating shaft to rotate. Compared with an existing oil cylinder steering mechanism, due to the structure that the drive mechanism drives the rotating shaft to rotate, the service basket fixed to the rotating shaft can have a wider rotation angle range. In addition, compared with an existing motor gear box steering mechanism, the rotating mechanism is simpler in structure and low in manufacturing cost.

The invention discloses a reconfigurable redundant mechanical arm driven by a rope, which belongs to the field of robot research and engineering. The redundant mechanical arm of the present invention is composed of a plurality of joint units, and its joint unit mainly includes a first joint, a second joint, a third joint, a retractable trunnion, a two-way electric push rod, an external threaded bearing and a spring embedded Silicone bellows, the two-way electric push rod built in the joint is connected to the retractable trunnion, and the trunnion is fixed between the two joints through an external threaded bearing to form a single-degree-of-freedom rotary joint and covered with a silicone bellows. Methods The position and equivalent height of the trunnion are changed by using the electric push rod to provide the drive, so as to realize the reconstruction of the joint mechanism. When the trunnion of the present invention is contracted, the inter-joint gap is reduced, and the rigidity and control precision of the overall redundant mechanical arm are improved; when the trunnion is extended, the joint gap is increased, the rotation angle range of the redundant arm is increased, and there is a larger terminal operation space.

The invention provides a spring energy storage device for an on-load tap-changer, and relates to a spring energy storage device. The spring energy storage device aims to solve the problems that according to an existing over-dead-point type spring energy storage device, the rotation angle range of tension spring drive components is small, and therefore the reliability of the spring energy storage device is low. A second transmission shaft is installed on the lower portion of a side plate through a first bearing block. The second transmission shaft and a third transmission shaft are coaxially arranged. A transmission gear is installed on the second transmission shaft and located between the side plate and a switching support plate. The end face, facing a transmission shifting block, of the transmission gear is provided with a first shifting column and a second shifting column. The first shifting column and the second shifting column are integrated with the transmission gear. The second transmission shaft is fixedly sleeved with one end of a switching shifting block. A transmission column is horizontally and fixedly installed to the other end of the switching shifting block. The transmission column is sleeved with a transmission shaft sleeve and a rotating sleeve in sequence. One end of a tension spring is installed on the transmission shaft sleeve, and the other end of the tension spring is fixed through a fixing column. Two limiting shaft sleeves are located on the periphery of a limiting wheel. The spring energy storage device is used for the on-load tap-changer.