131results about How to "Limited range of motion" patented technology

The invention provides a cooking utensil. The cooking utensil comprises an outer pot, a temperature controller, an elastic part and a heating disc. Guide holes are formed in the outer pot, the temperature controller is put in the outer pot, supporting legs are arranged at the bottom of a shell of the temperature controller, and the supporting legs penetrate through the guide holes. The elastic part is arranged between the shell and the outer pot, and the upper end and the lower end of the elastic part abut against the shell and the inner bottom wall of the outer pot respectively. The heating disc is arranged in the outer pot and covers the temperature controller, a receding hole is formed in the heating disc, and the top of the temperature controller can protrude out of the receding hole.The supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs. Accordingto the cooking utensil, the supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs, it is effectively avoided that a main temperature controller greatly rubs with an outer pot in the moving process, so that the main temperature controller is jammed, thus, the problemof jamming of the temperature controller is conveniently and effectively solved, and the cooking utensil is simple in structure and beneficial for popularization.

The invention relates to a two-degree of freedom inertial driving mechanism utilizing photovoltaic power supply, which comprises a photovoltaic assembly (7), a driving box (8) comprising a driving control circuit as well as a load(9), four piezoelectric stack elements and four counterweights, wherein the photovoltaic assembly(7), the driving box (8) and the load (9) are integrated into a main body and contacted with a working surface (10), and the four piezoelectric stack elements are respectively located in the front, at the back, on the left and the right of the main body. One ends of the four piezoelectric stack elements are connected with the main body, and the other ends are connected with the four counterweights. Under the lighting of sunlight (6), the photovoltaic assembly (7) generates direct current, and asymmetrical voltage signals are generated to excite the piezoelectric stack elements after the direct current is supplied to the driving control circuit in the driving box (8), therefore, the inertial driving mechanism can make continuous displacement in an x-y plane.

The invention discloses a vibration absorber for a cycloid type wind driven generator tower. The vibration absorber comprises a mass block and a steel wire rope, wherein a rubber rod is connected on the mass block; a connector is sleeved on the steel wire rope; one end of the steel wire rope is connected with a steel wire rope expansion head, and the other end of the steel wire rope is provided with a connecting installation hole; and the connector and the mass block are in a threaded connection. The damper absorbs the structure vibration energy by the swinging of the mass block, and simultaneously dissipates the energy through the axial deformation of a connected rubber spring. The movement direction of a mass cycloid is reverse to that of the structure for the action of dynamically damping; one end of the rubber spring is fixed on the mass block, and the deformation is controlled by the mass block to provide a force which is always reverse to the movement direction of the mass block, and the axial deformation of the rubber spring will have the function of consuming energy. The vibration absorber is simple to design and manufacture, convenient to install and change, has stable hysteretic characteristic, relatively low manufacture cost, and is applied to the structure for remarkably absorbing vibration.

The invention discloses a wind driven generator of a wind driven generator. The wind driven generator comprises a machine shell. First rolling bearings are fixedly connected with the middle of the right side of the inner wall of the machine shell. A hollow spindle is movably connected into the first rolling bearings. The right end of the hollow spindle sequentially penetrates through the first rolling beating and the machine shell from left to right, and extends out of the machine shell to be fixedly connected with a wind wheel. A push rod is arranged on the right side of the wind wheel and corresponds to the position of the hollow spindle. Through mutual cooperation of the hollow spindle, the wind wheel, the push rod, a triangular block, a baffle, a reset spring, second rolling bearings,a threaded rod, a threaded sleeve, a pulley, a positive and negative motor, a positive and negative rotating shaft, a first bevel gear, a second bevel gear, fixing plates, bearing seats, rotating blocks and inserting rods, excellent propeller varying effect is achieved, synchronous propeller varying of each blade is achieved. Stability and electric generating efficiency of the wind driven generator are improved, and the service life of the wind driven generator is prolonged.

The invention relates to a shoulder joint rehabilitation training device and belongs to the rehabilitation medical appliances; the rehabilitation training device solves the problem that the existing device only carries out single freedom degree training. The shoulder joint rehabilitation training device comprises a shoulder supporting mechanism, an abduction-adduction mechanism and a procurvation and post-extension mechanism; the shoulder supporting mechanism is composed of a back supporting plate, a back adjusting plate, a back connecting plate, a shoulder front plate, a shoulder-back supporting plate, a shoulder-back base plate and a shoulder front-tensioning block; the abduction-adduction mechanism is composed of a shoulder front connecting plate, a shoulder rear connecting plate, a shoulder front bearing base, a shoulder front shaft, a shoulder rear protecting plate, a shoulder post-tensioning disk, a shoulder rear bearing base and a shoulder rear shaft; the procurvation and post-extension mechanism is composed of an arm front connecting plate, an arm rear connecting plate, an arm supporting plate, an arm tensioning disk, an arm side shaft, an elbow connecting plate and an arm side bearing base. The shoulder joint rehabilitation training device eliminates the safety hazard of people causes by overtravel movement and realizes abduction-adduction, and procurvation, post-extension movement and combined movement of the shoulder joint; the structure is simple, the wearing is comfortable, the adjustment is flexible, the movement is smooth, and the device is safe and reliable and can carry out all-round rehabilitation training for upper-limb handicapped patients.

The invention discloses a low-energy-consumption posture analysis method under the standing state based on a bionic foot robot. The research is performed for the relation between the posture and the energy consumption of the foot robot, firstly the output torque of each joint of the legs is obtained through static leg analysis and the overall energy consumption model of the foot robot is established; then the motion flexibility of the robot is comprehensively considered, the maximum step performance indicator is introduced and the multi-objective function based on the energy consumption and the maximum step is established; and the low-energy-consumption posture of the robot is obtained through MATLAB simulation. The reliability and the effectiveness of the analytical method are proved by the experiment, the objectives of reducing energy consumption and increasing work endurance time can be achieved by adjusting the posture of the robot under the horizontal environment by establishing the dynamic relation between the robot posture change and the energy consumption and thus the method has important meaning for the static posture research of the robot.

The invention discloses a system and a method for repeatedly capturing microspheres based on pulsed laser. Left optical fiber is connected to the input side of a left optical coupler, the output sideof the left optical coupler is connected through left fused optical fiber, the left fused optical fiber is fused with a capillary, the capillary is fused with right fused optical fiber, the right fused optical fiber is connected with the output side of a right optical coupler, and the input side of the right optical coupler is connected with right optical fiber. Left continuous laser and right continuous laser are simultaneously oppositely emitted into the capillary to form an optical trap trapping region. The left pulse laser and the right pulse laser act on microspheres, and the power of theright pulse laser is adjusted, so the the left pulse laser and the right pulse laser act on the microspheres at the same time, and the microspheres bounce off the original position and move to the inside of the optical trap capture region, so the stable capture of the microspheres can be realized. According to the method, the microspheres are separated from the surface of a microcavity by the pulse laser and enter the optical trap trapping region, so the the branching and trapping of the microspheres can be realized, the repeated trapping of single particles can be realized, repeated loadingof the particles is not needed, and the system can be applied to environments such as air, vacuum and the like.

The invention relates to a breaking device, in particular to an efficient breaking device for construction wastes, and aims to solve the technical problem by providing the efficient breaking device for the construction wastes with high breaking efficiency. In order to solve the technical problem, the invention provides the efficient breaking device for the construction wastes, which comprises a left bracket, a slideway, a slide block, a right bracket, a breaking box, a fixed pulley, a stay wire, a first lifting frame, an electric push rod, a first connecting rod and a second swing base, the first lifting frame and the fixed pulley are arranged on the right side of the left bracket, the first lifting frame is located above the fixed pulley, the second swing base is arranged at the inner bottom of the first lifting frame, and the second swing base is connected with the electric push rod in a hinging manner. The efficient breaking device achieves the effects of high breaking efficiency, short breaking time, simple operation, and resource conservation, a rotating motor is started to rotate, a breaking rod is driven to rotate, and then the electric push rod is started to extend and shorten.

The invention relates to a contact rear sleeve riveting tool comprising a base. A cylinder and a riveting device are mounted on the base. The riveting device comprises a slide block circular seat; the center of the slide block circular seat is provided with a positioning through hole; the top surface of the slide block circular seat is provided with a cylinder boss coaxial with the slide block circular seat; the cylinder boss is provided with horizontal cross recess penetrating the cylinder boss; the center of the cross recess is communicated with the positioning through hole; and four slide blocks in a cross structure are placed in the cross recess. The head of each slide block has a steeple top; the tail of each slide block has an arc surface; and the tail of each slide block extends from the outer side of the cylinder boss. A pressure spring arranged in the direction of the cross recess is arranged at the bottom of each slide block; one end of the pressure spring is connected to the corresponding slide block; and the other end of the pressure spring is fixedly connected to the slide block circular seat. The slide blocks simultaneously press a contact rear sleeve located in the positioning through hole of the slide block circular seat after the slide blocks move toward the center in the cross recess, and then the riveting is completed.

The invention relates to a hollow high-precision three-axis horizontal turntable in a heavy load, which comprises a base, two groups of outer frame assemblies, a middle frame, a first angle measurement device, two groups of middle frame assemblies, an inner frame, a second angle measurement device, an inner frame assembly, a load mounting frame and a circular grating, wherein the two groups of outer frame assemblies are fixedly connected with a first side wall and a second side wall of the base respectively; each of two ends of the middle frame is connected with one outer frame assembly groupand performs rotating movement under driving of the outer frame assembly group; the first angle measurement device is connected with the outer frame assemblies; the two groups of middle frame assemblies are fixedly connected with the middle frame; the inner frame is connected with the two groups of middle frame assemblies respectively and performs turning movement under driving of the middle frameassemblies; the second angle measurement device is connected with the middle frame assemblies for measuring the rotating angle of the inner frame; the inner frame assembly is fixedly connected with the inner frame; the load mounting frame is fixedly connected with the inner frame assembly and rotates under driving of the inner frame assembly; and the circular grating is connected with the inner frame assembly for measuring the rotating angle of the load mounting frame. The problems of large span, low resonance frequency, large turntable weight and high cost of the traditional table frame canbe solved.

The invention relates to an integral brake control mechanism for an operating bed. The mechanism comprises a bracket, wherein a universal wheel is arranged on the two sides of the bracket respectively; a connecting rod is arranged between the two universal wheels; and a pedal component is arranged on the connecting rod. The shape of the section of the connecting rod is a polygon, particularly a regular hexagon; the pedal component comprises a rotating beam and a support beam for supporting a pedal; a beam is arranged at the front end of the rotating beam; a limiting bump is formed on the lower part of the bracket which is positioned over the beam; and a baffle plate is arranged between the rotating beam and the support beam and is fixed on the bracket. By using the combination of the pedal component and the connecting rod with the regular hexagonal section, the two universal wheels of the operating bed can be braked at the same time, so that the phenomenon that only one wheel of the operating bed is locked is avoided; and by using the structure of the limiting bump and the baffle plate, the motion range of the pedal component can be effectively limited, so that the damage to the universal wheels is eliminated.

The invention provides a vertebral body structure which comprises a first part, a second part and two vertebral plates, wherein the first part is provided with a spinous process; the second part is provided with a medullary cavity; the first end of the first part is connected with the first end of the second part through one of the two vertebral plates; the second end of the first part is connected with the second end of the second part through the other vertebral plate; and a vertebral canal is defined by the first part, the second part and the two vertebral plates. Through the application of the technical scheme of the invention, the vertebral body structure can remain complete soft tissue, generates less injury to a human body, is more beneficial to recovery of the human body, avoids changing the structure and the motion mode of a power device for a cervical vertebra (or a thoracic vertebra and a lumbar vertebra), prevents vertebra curvature loss, even kyphosis, and avoids the condition that the motion amplitude of the vertebra is limited obviously.

The invention discloses a multi-cable cutting device for cable erection. Two sets of clamping devices are arranged. In each clamping device, a lower clamping plate is arranged at the upper part of a base, one side of the lower clamping plate is movably connected with one side of an upper clamping plate through a hinge, a plurality of cable clamping grooves are formed in the upper clamping plate and the lower clamping plate, and cables are placed in the cable clamping grooves. A cutter rest is installed between the two sets of clamping devices and comprises stand columns arranged at the two ends of the base, a supporting plate connected with the upper ends of the stand columns, and a first guide rail installed on the upper portion of the supporting plate; a cutting machine is arranged on one side of the upper portion of the supporting plate; supporting legs are arranged on the two sides of a motor of the cutting machine; first sliding blocks are arranged on one sides of the lower portions of the supporting legs; and handles are arranged on the upper portions of the supporting legs on the two sides. According to the multi-cable cutting device for cable erection of the invention, themultiple wire clamping grooves are formed in the upper clamping plates and the lower clamping plates; when cables are to be cut, the wire clamping grooves are used for clamping the cables, so that themultiple cables are cut at a time; and therefore, the cutting precision of the cables is guaranteed, the process quality of cable cutting is improved, and the working efficiency is improved.

The invention discloses a hysteresis mechanism for a drawing die and an application method thereof. The hysteresis mechanism includes a hysteresis cylinder and a hysteresis cushion block, the hysteresis cushion block is connected with the piston rod of the hysteresis cylinder, the hysteresis cylinder is mounted on a blank holder, and the blank holder is installed On the lower die, the drawing die also includes an upper die, the upper die is provided with a binder body, a limit cover plate is arranged above the binder body, a nitrogen cylinder is arranged on the limit cover plate, and the ejector rod of the nitrogen cylinder and the binder body The height of the contact and hysteresis pads is the same as the movement stroke of the binder body; the application method of the hysteresis mechanism: 1. Place the sheet; 2. Clamp the mold and stamp the sheet into a finished product; 3. Start the hysteresis mechanism; 4. Delay the mold opening press body Exit; 5. Take out the stamping part. In the process of mold opening, the binder body starts to withdraw after the end of the binder ring stroke, so that the binder ring and the binder body move first and then later, avoiding the two moving at the same time and damaging the stamping part, and it can be used without air cushion The delay function is used on the press to save resources and reduce stamping costs.

The invention discloses a liquid level switch and a liquid level control device. The liquid level switch comprises a stationary part (1) and a movable part, wherein the stationary part (1) is provided with a travel switch (11); one of the stationary part (1) and the movable part is provided with a hollow push rod cavity; the other one of the stationary part (1) and the movable part is provided with a push rod (21) capable of moving relative to the push rod cavity in a predetermined range of the push rod cavity; the movable part comprises a floating body (22) capable of floating on the liquid; the movement of the movable part is capable of actuating the travel switch (11). According to the technical scheme, the push rod (21) of the floating body liquid level switch is capable of moving in the predetermined range along the push rod cavity, so that the movement range of the movable part is limited, thereby avoiding shake or swing caused by excessively large movement range of the movable part; the problem that signals shake can be effectively overcome.

The invention relates to a clamping device for a side guide rail of an operating bed. The clamping device comprises a shell, an inner clamping block, a shaft, a torsional spring and a handle, wherein the shell is provided with a first clamping part, a second clamping part and a third clamping part; the inner clamping block is provided with a fourth clamping part and a fifth clamping part; the shaft comprises a first section, a second section, a third section and a fourth section which are sequentially arranged along the axial direction, wherein the first section, the second section and the fourth section are coaxial, and the third section is eccentric; the shell comprises a first shell hole and a second shell hole which are respectively located at two sides of the axial direction of the shell, wherein the first shell hole is rotatably matched with the second section, and the second shell hole is rotatably matched with the fourth section; the inner clamping block comprises an inner clamping block hole extending along the axial direction, and the inner clamping block hole is rotatably matched with the third section; the handle comprises a handle hole which is unrotatably matched with the first section; and the third section is sleeved by the torsional spring. The clamping device has the following beneficial technical effects that accessories of an operating bed can be rapidly and reliably connected with and separated from a side guide rail, and the clamping device is suitable for side guide rails with different sizes and any positions on the side guide rails.