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 safety lock structure of an electric pencil sharpener. The safety lock structure comprises a shell (1), an upper cover (2) and a partition plate (3), wherein a first limitingstructure and a second limiting structure are arranged on the top surface of the partition plate (3); a pen point shifting block (4), a pen inlet starting switch (5) and a rotary lock catch (6) are arranged on the partition plate (3); and the pen point shifting block (4) is located between the first limiting structure and the second limiting structure in the stop working state, one part of the pen point shifting block (4) is located at the top of a first through hole (3.1), and the pen point shifting block (4) abuts against a shifting piece of the pen inlet starting switch (5) and is far awayfrom the top of the first through hole (3.1) in the working state. According to the safety lock structure of the electric pencil sharpener, a mechanical structure is adopted to automatically switch on and switch off a power switch when the upper cover is opened or closed, reliability and durability are good, and the cost is low.

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 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 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 relates to a charging connector appearance detection fixture, comprising a base; a chute is arranged on the base; a plurality of installation cavities communicated with the chute are arranged on the base along the extending direction of the chute; A fixing component is arranged in the installation cavity; the fixing component includes a shaft body; the shaft body is rotatably arranged in the installation cavity, and the shaft body is provided with a fixing tool for fixing the charging connector; the shaft body is coaxially provided with a transmission a gear; a drive rack is slidably arranged in the chute; a part of the transmission gear extends into the chute to cooperate with the drive rack. The present invention can quickly perform 360-degree appearance detection on a plurality of charging connectors; at the same time, the detection setting is also convenient to find out the charging connectors with bad appearance.

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.