31results about How to "Guaranteed rotation angle" patented technology

The invention discloses a pure pneumatic power-assisted mechanical arm device. The technical problems that in the prior art, the moving and overturning efficiency of a self-suction type gear oil pumpis low in the manufacturing process of an oiling machine, the labor intensity of workers is high, and the safety coefficient is low are solved. The device comprises a universal mechanical arm, a control unit and an overturning mechanism. The overturning mechanism comprises a clamp support, a pneumatic clamp and a pneumatic driving mechanism. The pneumatic driving mechanism comprises an overturningair cylinder, wherein the air cylinder is connected with the clamp support, the overturning air cylinder is hinged to an overturning connecting rod, the end part of the clamp support is fixedly connected with an overturning shaft seat, a transmission gear connected with the overturning connecting rod is arranged in the overturning shaft seat, and an overturning rotating shaft which is in transmission connection with the transmission gear is arranged below the overturning shaft seat, the pneumatic clamp is arranged on the overturning rotating shaft, and a limiting structure is arranged on theoverturning shaft seat. The device has the advantages of being simple and compact in structure, strong in compatibility, convenient and flexible to operate, and capable of replacing the clamp, and having a good popularization and application prospect.

The invention relates to the technical field of a grabbing operation device of an end part fitting of a damaged fuel assembly after irradiation in the repairing process, and in particular discloses an underwater operation device for grabbing the end part fitting of a nuclear fuel assembly. The device comprises an upper outer sleeve, a core rod and a lower outer sleeve; a retainer ring is arranged between the upper outer sleeve and the lower outer sleeve which can rotate respectively; the opposite angle of the sleeve wall of the lower outer sleeve is provided with a limiting hole; the core rod penetrates through the upper outer sleeve and the lower outer sleeve; a cylindrical pin penetrates through the limiting hole and the core rod on the lower outer sleeve, and is fixed on the core rod; the lower end of the core rod extends out of the lower outer sleeve and a 'cross-shaped' structural grab head is fixed on the lower end of the core rod. The device can freely pass in and out the end part fitting, and can clamp the end part fitting after rotating for certain angle; and simultaneously, the limiting hole on the lower outer sleeve can ensure the rotation angle and the lifting height of the core rod and the grab head, the device is convenient to operate, the state of the device is convenient to confirm, and the underwater grabbing problem of the end part fitting of the neclear fuel assembly is solved.

The invention relates to a rotary knob, a temperature control panel comprising the same and a freezer. The rotary knob comprises a handheld part, an assembly joint part and a running fit part, wherein the running fit part is in running fit with a temperature controller in the temperature control panel; the lower end of the assembly joint part is provided with at least two buckle structures which rotate relative to the temperature control panel and are connected with the temperature control panel in a clamped mode. One buckle structure is additionally provided with a limiting clamping jaw which rotates relative to the temperature control panel and is connected with the temperature control panel in a clamped mode. The limiting clamping jaw and a limiting block on the temperature control panel abut against each other and carry out limiting. The rotary knob is provided with at least two buckle structures which ensure effective connection between the rotary knob and the temperature control panel and stress uniformity together, increase the connection reliability of the rotary knob and guarantee that the rotary knob cannot be taken out easily. On one hand, the limiting clamping jaw improves the connection strength between the rotary knob and the temperature control panel, and on the other hand, the limiting clamping jaw and the limiting block on the temperature control panel jointly play a role of limiting and guarantee the rotating angle of the rotary knob.

The invention discloses a paper pressing device for a printing machine. Two sets of compressing assemblies are arranged on the side portions of a machine body. Each compressing assembly comprises a rotary arm which can rotate, a drive cylinder which can drive the rotary arm to rotate and a rolling body which can make contact with paper. The two sets of compressing assemblies are located on the two sides of the machine body correspondingly and are mutually symmetrical. Two sets of buffering assemblies are arranged on the bottom of a chamber of the machine body. Each buffering assembly comprises a guide track which is arranged in the horizontal direction, a supporting frame which can do linear reciprocating motion along the guide track, an elastic unit which can extend and retract in the horizontal direction and an abutting and connecting unit which can make contact with the outer circumferential surface of the corresponding rolling body. The two sets of buffering assemblies are located on the two sides of the chamber of the machine body correspondingly and are mutually symmetrical. The paper pressing device can effectively improve the paper pressing efficiency and the paper flatness after the paper is compressed.

An automatic rotating mechanical worktable is characterized by comprising a hydraulic cylinder, supporting stand columns, a hydraulic piston, a coupler, a fixing tool, a rotating disc, a worktable body and a fixing chuck, wherein the fixing chuck is fixed to the supporting stand columns, the worktable body is arranged on the fixing chuck and connected with the rotating disc arranged in the fixing chuck, the lower side of the rotating disc is connected with a driving device, the driving device comprises the hydraulic cylinder, the hydraulic piston and the coupler, the hydraulic piston of the hydraulic cylinder is connected with the coupler, the driving device is connected to the lower side of the rotating disc through the fixing tool, the rotating disc is in a round cake shape, a sliding wheel is arranged on the outer edge of the rotating disc, the fixing chuck is in a ring shape, and a sliding track matched with the sliding wheel of the rotating disc is arranged on the inner ring of the fixing chuck. The automatic rotating mechanical worktable has the advantages that the structure is simple, use is convenient, the combination efficiency of sand cores can be effectively improved, and the labor intensity of workers can be effectively relieved; besides, by adopting a tabletop rotating device, the rotating angle of the sand cores can be guaranteed, the sand cores can be prevented from being damaged, the rate of finished products can be increased, and requirements of modernized production can be met.

The invention discloses a two-stage planetary gear transmission mechanism for a three-dimensional (3D)curved glass polishing machine. The two-stage planetary gear transmission mechanism comprises a sun wheel assembly and at least two groups of planetary gear assemblies; the sun wheel assembly comprises a sun wheel bracket and a sun wheel arranged on the sun wheel bracket; the planetary gear assemblies are engaged with the periphery of the sun wheel, wherein a planet framesynchronously rotated with the sun wheel is arranged over the sun wheel, a feeding and discharging station and one or more polishing stations are successively arranged on the planet frame in the circumferential direction of the planet frame, and the planetary gear assemblies are installed on the planet frame. According tothe two-stage planetary gear transmission mechanism for the 3D curved glass polishing machine, at least two groups of planetary gear assemblies are arranged on the two-stage planetary gear transmission mechanism, agreat deal of 3D curved glass can be synchronously polished, it can be ensured that the rotating angle and amplitude of each 3D curved glass are uniform, and polishing uniformity is improved; meanwhile, a clutch assembly is responsive, and the phenomenon of braking feedback delay is greatly reduced; and meanwhile, the planetary gear assemblies can further be braked in time, and the polishing error is further decreased.

The invention discloses high-efficiency and safety biological detection equipment. The high-efficiency and safety biological detection equipment comprises a machine body, wherein the machine body is fixedly arranged on ground, a first drying chamber is arranged in the machine body, a second drying chamber is arranged at a lower side of the first drying chamber, a drying device is arranged betweenthe first drying chamber and the second drying chamber, a placement box is arranged in a detection chamber, a moving device is arranged at a middle position of an upper end surface of the placement box, a moisture value test needle is arranged at a left side of an upper end surface of the detection chamber, a pH value test needle is arranged at a right side of the upper end surface of the detection chamber, a stirring shaft is arranged in the stirring chamber, blades are uniformly arranged on a shaft body of the stirring shaft, a left end surface of the stirring shaft penetrates through a connection cavity and is fixedly connected with a central position of a right end surface of belt wheel, a detector is arranged at a right side of the stirring chamber, and an operable window is arrangedat a position of the detection chamber on a front end surface of the machine body. The equipment is comprehensively simple to operate, multiple steps are completed in the equipment, the detection costis reduced, and the working efficiency is improved.

The invention discloses a rapid leveling construction engineering cost on-site surveying and mapping device, and the device comprises a plurality of movable bases; locking universal wheels are arranged at four opposite angles of the bottoms of the movable bases, the tops of the bases are connected with horizontal plates through adjusting mechanisms, and the tops of the horizontal plates are fixedly connected with rotating shafts. A placement plate is fixedly connected to the top of the rotating shaft, a limiting mechanism is arranged at the bottom of the placement plate, threaded rods are rotationally connected to the inner side walls of the two mounting grooves, the opposite ends of the two threaded rods penetrate through the mounting grooves and are fixedly connected with handles, and the two threaded rods are connected with a gradienter body through fixing mechanisms. According to the device, a telescopic rod and a limiting block are clamped, meanwhile, a rotating shaft rotates to drive a placement plate to rotate, meanwhile, the placement plate rotates to drive the telescopic rod to rotate, after the telescopic rod rotates to the needed position, the limiting block is inserted into an inserting groove, the placement plate is fixed, the device is located at the horizontal position, and the practicability of the device is improved.

The invention discloses an LED (Light Emitting Diode) lamp and a control method thereof, and relate to an LED lamp, which comprises a base, wherein the lower surface of the base is provided with pulleys, and a groove is formed in one side, close to the pulley, of the lower surface of the base; a supporting rod is rotatably arranged inside the groove, and the pulleys and the supporting rods are arranged in a triangle; a fixing rod is fixedly arranged on the upper surface of the base, and a storage battery is arranged at one side, close to the fixing rod, of the upper surface of the base; one side of the storage battery is connected with a plug, and one side of the fixing rod is provided with a control switch. An LED lamp panel can be installed and disassembled by moving a moving board of anLED mounting frame, and the LED lamp panel can be fixed by a fixing buckle, the rotation angle of the LED lamp panel can be maintained, an electric wire binding ring can limit an electric wire to keep away from the fixing rod and can prevent the electric wire from being scratched when the LED lamp panel is moved, the LED lamp panel can be conveniently moved by the pulleys, and the LED lamp panelcan be fixed by matching the supporting rods.

The invention discloses a scanning device for assisting patient in positioning during ultrasonic guided radiotherapy. The scanning device comprises a clamping plate, a base, a PLC control panel, a placement groove, a travel switch I, a travel switch II, an electric push rod I, a stepping motor I, a rotating shaft, an arc-shaped rack, a movable seat, a stepping motor II, a gear, an electric push rod II, a fixed seat, a pressure sensor and an ultrasonic probe. According to the invention, through the action of an X-axis, Y-axis and Z-axis electric position adjusting mechanism, accurate control over an ultrasonic guided scanning position is achieved; through the matching effect of an angle rotating and positioning device, the rotating angle of the ultrasonic probe is ensured; the design of a pressure sensing system is cooperatively used, so medical staff can conveniently master pressing depth and pressing force, and the precision of positioning verification of ultrasonic-assisted CBCT is improved; and in conclusion, by means of the device, the consistency of ultrasonic probe scanning in each time of positioning verification is guaranteed, and popularization and application of auxiliary positioning during ultrasonic guided radiotherapy are facilitated.

The invention discloses a leg structure shaped like the Chinese character 'shan' capable of being stored and a massage chair thereof. The 'shan'-shaped leg structure comprises a seat frame, a walkingframe, a power transmission part, a rack and a 'shan'-shaped leg, and the seat frame is installed in the massage chair; the walking frame is slidably installed on the seat frame; the power transmission part is installed on the seat frame and is in transmission connection with the walking frame; the rack can slide for a distance relative to the seat frame; the 'shan'-shaped lag structure is provided with a gear, the gear and the rack are meshed, cooperatively and rotatably installed on the walking frame, and rotate between the folding position and the unfolding position; when the 'shan'-shapedleg needs to be unfolded, the power transmission part drives the walking frame and the 'shan'-shaped leg to move, and after the rack is driven to synchronously move for a distance through the clampingof the gear and the rack, the 'shan'-shaped leg is driven to rotate through the cooperative meshing of the gear and the rack. The whole unfolding or folding process of the 'shan'-shaped leg does notneed manual operations, and the 'shan'-shaped leg can be unfolded when in use, the 'shan'-shaped leg can be stored in a seat when not in use, and the structure is convenient to use and does not occupyspace.

The invention discloses assembling equipment for a charging connector. The assembling equipment comprises a rotary line, a charging line and a charging line, wherein an accompanying jig is mounted on the rotary line; a fork bridge assembly assembling device and a fork bridge assembly assembling device are sequentially arranged in the flowing direction of the rotation line. An electricity taking frame assembly assembling device; a third manipulator; a circulation line is arranged on the other side of the third mechanical arm, a shell carrier is installed on the circulation line, and a shell assembling device, a shell discharging device and a shell discharging device are sequentially arranged in the flowing direction of the circulation line. An elastic sheet assembly assembling device; a semi-finished product assembling device; a finished product assembling device; and a fixed seat assembly assembling device is arranged outside the circulating line. According to the follow-up jig, the fork bridge assembly, the left support and the right support are assembled to form the power taking frame assembly, and in the process that the follow-up jig moves towards the third mechanical arm on the rotation line, the first elastic piece applies elastic force to the pushing block to conduct pressure maintaining, so that the fork bridge assembly is combined with the left support and the right support more stably.

The invention discloses a table top rotating device. The rotating device comprises a fixing support which is equipped with a drive motor, wherein the drive motor is connected with a working table for holding a sand core through a transmission mechanism. When the table top rotating device is in use, a sand core seat equipped with the sand core is placed on the working table, and the drive motor drives the working table to rotate an angle through the transmission mechanism, and correspondingly, the sand core rotates a certain angle. The table top rotating device has simple structure and is convenient to use; and by utilizing the device, combination efficiency of the sand core can be effectively improved, labor strength of a worker is lowered, rotation angle of the sand core is ensured, damage to the sand core is avoided, finished product ratio is improved, and the requirements of modernized production is met.

The invention provides a drafting device of a drawing frame, belonging to the technical field of textile machinery. The drafting device comprises a roller mechanism and an intermittent rotary pressure bar mechanism, wherein the roller mechanism comprises a first roller component and a second roller component; the intermittent rotary pressure bar mechanism is arranged between the first roller component and the second roller component; a pressure bar of the intermittent rotary pressure bar mechanism is arranged at one end of an output shaft; a one-way clutch is arranged on the output shaft; an idler wheel fulcrum is arranged outside the one-way clutch; an idler wheel is arranged at one end of the idler wheel fulcrum in a rotatable manner; one end of a spring is connected with the idler wheel fulcrum and the other end is connected with a support base; a sliding cam is arranged on the support base in a slideable manner; the idler wheel always keeps fit with the sliding cam under the action of the spring; the body of an oil cylinder is horizontally fixed on an oil cylinder support; one end of a piston rod is connected with the sliding cam. The drafting device utilizes intermittent rotary pressure bar curvilinear drafting, thus not only reducing accumulated fibers of the pressure bar but also greatly reducing yarn faults.

The invention discloses a new energy automobile support with a stable structure, and belongs to the technical field of automobile accessories, the new energy automobile support comprises a support, the outer surface of the support is fixedly connected with four connecting blocks, the upper surfaces of two corresponding connecting blocks are fixedly connected with the same fixing plate, and the upper surface of the fixing plate is fixedly connected with a supporting rod. According to the support with the stable structure for the new energy automobile, by arranging the buffer boxes, the connecting pieces, the inclined rods, the connecting rods, the rolling wheels, the fixing blocks, the notches, the first springs and the second springs, it can be guaranteed that the support cannot be damaged due to too large external force, and the service life of the support is guaranteed; and meanwhile, the buffering distance needed by the buffering mechanism in the device is small, the stability of the device can be further improved while the buffering effect can be guaranteed, meanwhile, the buffering effect after long-term use can be guaranteed, the situation that the device is damaged due to the fact that the buffering effect is reduced is avoided, unnecessary property loss is avoided, and the device is very practical.

The invention discloses a metal product surface anode treatment device. The device comprises a box; a fixed plate is fixedly connected between two opposite sides of the inner wall of the box; the bottom of the inner wall of the box is fixedly connected with a first motor; an output shaft end of the first motor is fixedly connected with a lead screw through a first coupling; the surface of the lead screw is engaged with a slide block; the top of the slide block is fixedly connected, and is rotationally connected with a movable plate through a rhombic frame; the top of the movable plate is fixedly connected with a rotating device; the other end of the rotating device is fixedly connected with the surface of a first rotating shaft; one end of the first rotating shaft penetrates through the top of the box, and extends to the external of the box; and one end, extending to the external of the box, of the first rotating shaft is fixedly connected with a lifting device. The device relates to the technical field of metal product machining. The metal product surface anode treatment device solves the problem of need of manual transfer in a traditional treatment method, meanwhile, reduces the space demands, reduces the labor intensity, and improves the production efficiency.

The invention relates to a charging connector appearance detection fixture which comprises a base, wherein a sliding chute is formed in the base; a plurality of mounting cavities communicated with thesliding chute are formed in the base in the extending direction of the sliding chute. Each mounting cavity is internally provided with a fixing assembly which comprises a shaft body is rotationally arranged in an installation cavity. A fixing tool for fixing a charging connector is arranged on the shaft body, and a transmission gear is coaxially arranged on the shaft body. A driving gear rack isarranged in the sliding chute in a sliding mode, and a part of the transmission gear extends into the sliding chute and is in transmission fit with the driving gear rack. 360-degree appearance detection can be carried out on a plurality of charging connectors quickly. Meanwhile, the detection setting is convenient, and the charging connectors with poor appearance can be selected out conveniently.

The invention discloses a processing technology of an anti-freezing heat-resistant PE pipe, and belongs to the technical field of PE (polyethylene) pipeline processing. The processing technology comprises the following steps that step 1, firstly, a to-be-drilled angle on the circumference of the PE pipe is manually adjusted and confirmed; step 2, the to-be-drilled PE pipe is positioned and individually clamped; step 3, the PE pipe is clamped through an all-directional clamping device, and deviation of a drilling device is prevented; and step 4, finally, the PE pipe is rotated to the angle adjusted in advance so that multi-aspect drilling can be carried out on the PE pipe. According to the processing technology of the anti-freezing heat-resistant PE pipe, the problems that a clamping device cannot adapt to clamping operation of PE pipes with various calibers, the drilling effect is poor, the precision is low, the drilling position cannot be automatically adjusted through equipment, the uniformity degree of drilling is not guaranteed, and the use effect of the PE pipes is affected can be solved.

The invention discloses an automatic refueling device which comprises a differential fuel injection device, a swing device, a lifting device and a transverse moving device. The differential fuel injection device and the swing device are used for inserting an oil gun into a refueling port. The differential fuel injection device drives the oil gun on an oil gun base to rotate in stages in the modes that a driving assembly drives a second arc-shaped rack to rotate and a driven assembly rotates on a first arc-shaped rack, and the swing device is used for moving the differential fuel injection device to the refueling port from the storage position. The lifting device and the transverse moving device are used for adjusting the heights and the horizontal positions of the differential fuel injection device and the swing device correspondingly, and therefore the automatic refueling device adapts to refueling of different vehicles. According to the automatic refueling device, the occupied space of the refueling device can be effectively reduced, the purpose that the oil gun is automatically inserted into the refueling port can be effectively achieved, and the automatic refueling device has the advantages of being small in occupied area, high in refueling port alignment precision and high in refueling speed, saving manpower, achieving uninterrupted refueling, and being simple in structure and low in maintenance cost.

The invention discloses a scenic area stair with a display function, and relates to the technical field of stairs. The scenic area stair comprises a stair body, handrails and supporting rods. The handrails are suspended on the left side and the right side of the upper part of the stair body, the multiple supporting rods are fixed to the lower side walls of the handrails at equal intervals, and thelower ends of the supporting rods are fixed to the stair body. The scenic area stair further comprises a display mechanism, fixed covers and a rotating mechanism. The multiple fixed covers are fixedto the upper sides of the handrails on the front side and the rear side at equal intervals, the side walls of the fixed covers are arranged in a triangular shape, the display mechanism is suspended onthe upper sides of the fixed covers, a plurality of rotating rods in the display mechanism penetrate through bearings in the upper side walls of the fixed covers and then are suspended in the fixed covers, rotating mechanisms are arranged in the fixed covers, and one ends of rotating rods in the rotating mechanisms penetrate through the side walls of the fixed covers and then are exposed out of the fixed covers. According to the scenic area stair with the display function, the culture of a scenic area can be introduced without explanation of a tour guide, so that tourist officers knows the culture of the scenic area conveniently, and the scenic area stair with the display function has the advantages of reasonable arrangement, low manufacturing cost and the like.

The invention relates to a hinge mechanism for a treadmill electronic watch assembly and a treadmill. The hinge mechanism comprises a hinge plate, a hinge base and a hinge shaft. One of the hinge plate and the hinge base is fixed to a base frame of the electronic watch assembly, and the other of the hinge plate and the hinge base is fixed to the upper end portion of a stand column of the treadmill. The hinge shaft penetrates through an arc-shaped hole formed in the hinge plate and a round hole formed in the hinge base so that the hinge plate and the hinge base can be connected together. The hinge shaft can slide along the arc-shaped hole relative to the hinge plate, thus the whole electronic watch assembly can move along an arc-shaped trail corresponding to the arc-shaped hole relative tothe stand column. The arc-shaped hole is provided with a first end portion and a second end portion which are mutually opposite. When the hinge shaft is located on the first end portion, a shell of the electronic watch assembly is connected with the stand column in an abutting-against manner. When the hinge shaft is located on the second end portion, the electronic watch assembly is turned over tothe front side of the stand column. According to the hinge mechanism, a gap between the shell of the electronic watch assembly and the stand column can be effectively eliminated, appearance attractiveness of the treadmill is improved beneficially, and integrity of the overall appearance is kept beneficially.

A novel straw peeling machine comprises a belt pulley and a peeling roller. A support is arranged beside the belt pulley and is of a trapezoidal structure. An end plate is arranged on the support and provided with the peeling roller. Fixing rods are arranged on the two sides of the peeling roller and connected with the peeling roller. Elastic components are arranged between the peeling roller and the fixing rods and are flexible springs. The elastic components are uniformly distributed between the peeling roller and the fixing rods. The elastic components are arranged between the peeling roller and the fixing rods, and thus the vibration frequency of the peeling machine can be lowered effectively, and normal use of the peeling machine is guaranteed. Round protruding blocks are arranged on the peeling roller, and thus impurities on the outer surface of straw can be completely removed rapidly, and cleanliness of recycled straw is guaranteed.

The invention belongs to the field of threaded fastener disassembly tools, and particularly relates to a spanner and a clamping-and-holding assembly thereof. The spanner includes a spanner handle andthe clamping-and-holding assembly, wherein the clamping-and-holding assembly includes clamping-and-holding members, a main rod and set screws. A through long hole is formed in the main rod, the spanner handle penetrates through the through long hole in the main rod and is connected with the main rod, two ends of the main rod are connected with the clamping-and-holding members, and each clamping-and-holding member is provided with a long hole, wherein the extending length of the long hole in the circumferential direction is equal to one twelfth of the circumference of the clamping-and-holding member, and the width of the long hole is equal to the diameter of the corresponding set screw. The set screws penetrate through the long holes to connect the inserted clamping-and-holding members andthe main rod so that when the spanner works and the clamping-and-holding members and fasteners are not fully matched, the clamping-and-holding members can be rotated to realize the cooperation of theclamping-and-holding members and the fasteners. When the spanner works in a special environment with small operable space, the rotation angle of the spanner can be ensured to the maximum, so that theworking efficiency can be improved in special environments.