33results about How to "Play a self-locking role" patented technology

The automobile air conditioner air door device includes an executor, a transmission mechanism, an air door baffle, and an air intake box, and the transmission mechanism includes an executor rotation arm, a driving rack and an air door rotation arm. The air door baffle is made to switch the position between the inner air intake and the outer air intake for realizing the inside circulation and the outer circulation of the air inside the automobile to ensure the ventilation and comfort effectively. The simple structure of the transmission mechanism and the small size of the air door device result in greatly reduced size of the whole air intake. In addition, the air door baffle has self-locking effect and the air door has excellent sealing performance.

The invention provides a device and method for strengthening foil connection strength under laser loading. The device comprises a laser loading system, a control system, a heating system, a welding system, a clamping system and a three-dimensional mobile platform system; the laser loading system comprises a focusing lens, a lens support, a lens height adjustor, a reflector and a pulse laser; the control system comprises a computer, a laser controller, an air pressure controller, a heating controller and a three-dimensional mobile platform controller; the temperature system comprises a heating plate; the three-dimensional mobile platform system comprises a three-dimensional mobile platform and a right-angle base; the welding system comprises a restraint layer, an absorbing layer and a workpiece; and the clamping system comprises a workpiece, an air cylinder, a die driving device and upper and lower dies. According to the device and method, under the heating condition, by loading lasers, two layers of foil can be subject to impact welding and clamping at the same time, and the connecting strength of the foil is strengthened; and the die driving device in the device can drive the movable upper die to move left and right, the self-locking effect can be achieved, and the working efficiency is improved.

The invention discloses a four-direction displacement geotechnical bridge handrail concrete pouring device. The geotechnical bridge handrail concrete pouring device comprises a chassis, wheel systems,a hydraulic rod and a storage box. Two sets of wheel systems are installed on the lower surface of the chassis and arranged in a crossed mode. The storage box is arranged on the upper surface of thechassis in an up-down sliding mode, the hydraulic rod is arranged between the storage box and the chassis, and the hydraulic rod pushes the storage box to move up and down; L-shaped push handles are arranged on the adjacent side edges of a bottom frame; each wheel system comprises a wheel bridge, a wheel arm, a roller, a steering rod, a connecting rod and a rack; and the wheel arms are rotatably installed below the two ends of the wheel bridges, and the rollers are installed on the wheel arms. The device is specially used for pouring construction of a bridge handrail, prepared concrete can berapidly poured into a handrail mold of a bridge through the device, and meanwhile the height of a discharging opening can be adjusted according to the height of the handrail so as to achieve adaptation. According to wheel layout, steering can be well controlled, and rapid and accurate positioning to a target area can be achieved.

The invention discloses a battery cover component of a switchable radio frequency test hole, which comprises a battery cover body, a radio frequency test hole baffle and a cover board with a hole. The cover board is mounted with two parallel limiting bars, a press button with a step is mounted on the radio frequency test hole baffle, the cover board is fixed on an inner side of the battery cover, the radio frequency test hole baffle is positioned between the two parallel limiting bars of the cover board and the baffle can slide along the limiting bars; a limiting slot for the sliding of the press button is opened on the battery cover, and one end of the limiting slot is corresponding to the hole of the cover board. The invention also discloses a mobile phone, which utilizes the battery cover component. The closing and opening of a radio frequency test hole of the mobile phone is implemented by blocking the battery cover component on a mobile phone body, which also prevents a mobile phone battery from accidentally sliding from a battery chamber. With the battery cover component of the invention, the mobile phone can eliminate color difference of a mobile phone shell, avoid dust from entering the radio frequency test hole and improving the quality of the mobile phone shell at the same time.

The invention provides a device and method for strengthening foil connection strength under laser loading. The device comprises a laser loading system, a control system, a heating system, a welding system, a clamping system and a three-dimensional mobile platform system; the laser loading system comprises a focusing lens, a lens support, a lens height adjustor, a reflector and a pulse laser; the control system comprises a computer, a laser controller, an air pressure controller, a heating controller and a three-dimensional mobile platform controller; the temperature system comprises a heating plate; the three-dimensional mobile platform system comprises a three-dimensional mobile platform and a right-angle base; the welding system comprises a restraint layer, an absorbing layer and a workpiece; and the clamping system comprises a workpiece, an air cylinder, a die driving device and upper and lower dies. According to the device and method, under the heating condition, by loading lasers, two layers of foil can be subject to impact welding and clamping at the same time, and the connecting strength of the foil is strengthened; and the die driving device in the device can drive the movable upper die to move left and right, the self-locking effect can be achieved, and the working efficiency is improved.

The invention discloses a self-locking and interlocking mechanism for shifting fork shafts of a gearbox, which comprises a plurality of parallel shifting fork shafts penetrating through a gearbox shell. Corresponding neutral annular grooves are arranged on the shifting fork shafts respectively, two sides of each neutral annular groove are positioned on the upper portion of the corresponding shifting fork shaft and provided with self-locking grooves, a self-locking and interlocking block is arranged on the outer side wall of the gearbox shell and provided with a plurality of shifting fork shaft holes, a self-locking device and an interlocking device, the shifting fork shafts penetrate through the shifting fork shaft holes, the self-locking device is matched with the self-locking grooves, and the interlocking device is matched with the neutral annular grooves. Self-locking and interlocking devices originally mounted inside the gearbox shell are mounted outside the gearbox shell, complicated self-locking and interlocking holes machined on the gearbox shell are avoided, machining complexity and rejection rate are reduced, and tightness of the gearbox shell is also improved.

The invention provides an earthquake alarm which comprises an induction device and an alarm circuit and is capable of giving acousto-optic alarm. The earthquake alarm is characterized in that the induction device comprises a supporting frame fixed on a bottom plate and a magnet suspended on the supporting frame; the alarm circuit comprises a power supply, a reed pipe arranged below the magnet and an acousto-optic alarm device arranged in the circuit, wherein the reed pipe is accessed to the circuit in a form of a normally-closed point. The alarm comprises the induction device and the alarm circuit, and realizes the rapid induction on earthquake and caution function for people in a seismic center. A relay J playing a self-locking function is arranged in the alarm circuit to ensure that an alarm signal is continuous.

The invention relates to a large-torque self-locking steering engine. The large-torque self-locking steering engine comprises an essential worm gear and output shaft gear speed reduction set in main transmission and is characterized in that an angle sensor and a motor are connected with control lines divided from a control circuit board in a closed shell, a main shaft of the motor rotates to drivea motor drive gear, the motor drive gear drives a worm connecting gear engaged with the motor drive gear, the worm connecting gear and a worm gear are coaxial, the worm gear and an output shaft gearare engaged with each other and driven to rotate together, a shaft of the output shaft gear is connected with the angle sensor at the bottom, after the output shaft gear rotates at a certain angle, the angle sensor inducts position information and feeds the position information back to the control circuit board, so that the motor is controlled to stop rotating, so that the stroke position of a steering disc connected to the upper face of the output shaft gear is controlled, at the moment, if the external force is larger than the torsion of the motor, rotation or an out-of-control condition canbe generated, and a self-locking function is achieved by the output shaft gear and the worm connecting gear engaged with the output shaft gear.

The invention provides a single-screw-control three-arm type lifting platform based on gear linkage. The single-screw-control three-arm type lifting platform based on the gear linkage comprises a top plate, a bottom plate, three arm rods, three lead screws and a center gear unit. The two ends of each arm rod are matched with the top plate and the bottom plate in a hinged mode. Each arm rod comprises an upper arm connecting rod, a lower arm connecting rod and an elbow-shaped bracket. The middle of each elbow-shaped bracket is matched with the corresponding lead screw. When the lead screws rotate, the elbow-shaped brackets can be driven to move, so that the upper arm connecting rods and the lower arm connecting rods do scissor-type movement in the rotating process. The center gear unit comprises two hexagonal rings and six oblique gears. The two hexagonal rings are assembled coaxially in an embedded-sleeved mode, the six oblique gears are clamped between the two hexagonal rings, and every two adjacent oblique gears mesh mutually. The three lead screws are fixedly connected with the three corresponding oblique gears which are arranged at intervals in a coaxial mode, one of the rest of three oblique gears is connected with an external power source, and the other two oblique gears are transmission gears. The single-screw-control three-arm type lifting platform based on the gear linkage can be used for manual operation or electric operation, and the better stability and the higher working efficiency are achieved.

The invention relates to an efficient child-mother cylinder and a hydraulic control system thereof. The efficient child-mother cylinder comprises a mother cylinder body, a child cylinder body and a piston rod. At least one mother cylinder mold closing oil inlet and at least one differential oil inlet are formed in the top of the mother cylinder body, and a mold opening oil inlet is formed in the bottom of the mother cylinder body. The child cylinder body is slidably arranged in the mother cylinder body, and the lower end of the child cylinder body extends out of the cylinder body, so that a mold closing cavity and a mold opening cavity are formed in the mother cylinder body. A mold closing channel extending into the child cylinder body is arranged at the upper end of the child cylinder body. The upper end of the piston rod is fixed to the mother cylinder body, and the lower end extends into the mold closing channel. The piston rod is of a hollow structure, and a child cylinder mold closing oil inlet is formed in the upper end of the piston rod. According to the efficient child-mother cylinder and the hydraulic control system thereof, the mother cylinder mold closing oil inlets are formed in the mother cylinder body so that a large amount of oil can be conveniently fed into the mold closing cavity, and meanwhile, hydraulic oil in the mold opening cavity can be guided into the mold closing cavity through the differential oil inlets, so that the mold closing speed is high, the working efficiency is improved, the output force is large, and the requirement of a large-load occasion can be met.

The invention discloses a working condition self-adaptive driving system of a loading machine. The working condition self-adaptive driving system comprises an elementary unit and a variable force hydraulic coupler. The elementary unit is connected with an input shaft. The elementary unit is connected with a plurality of load shafts through the variable force hydraulic coupler. In the elementary unit, a first gear, a second gear and a first force distribution wheel constitute a planet gear driving system, a second force distribution wheel, a third gear and a fourth gear constitute a planet gear system, the rotating speeds of three output shafts can be automatically adjusted according to rotating resistance of the three output shafts, and self-adaptive working condition regulation is realized. A first baffle plate is clamped by two shells of the variable force hydraulic coupler clamps and then fixed through fasteners. The shells are provided with two hydraulic coupling wheels which are spaced through the first baffle plate. A second baffle plate on one side of the first baffle plate can rotate to change the overlapping area of second blocking holes and first blocking holes so as to change the shaft connecting power of the hydraulic coupler.

The invention discloses a brick-moving device, which belongs to the technical field of construction engineering and comprises a movable base, a cylinder and a brick-moving clamping mechanism; the cylinder body of the cylinder is fixed on the movable base, and the brick-moving clamping mechanism is located on the piston rod of the cylinder; The clamping mechanism for moving bricks includes two clamping arms parallel to each other and two hand levers parallel to each other. connection; the two hinge points between the two hand levers and the two clamping arms are in line with the hinge points between the two hand levers; corresponding limit blocks are respectively provided on the opposite surfaces of the two hand levers. It does not need manual labor or other auxiliary devices to keep it in a clamped state, which is very convenient and labor-saving, and has a simple structure and low cost.

The invention discloses a brick moving device, and belongs to the technical field of constructional engineering. The brick moving device comprises a movable base, an air cylinder and a brick moving and clamping mechanism. A cylinder body of the air cylinder is fixed to the movable base, and the brick moving and clamping mechanism is arranged on a piston rod of the air cylinder. The brick moving and clamping mechanism comprises two parallel clamping arms and two parallel hand rods. One end of each clamping arm is hinged to one end of the corresponding hand rod, the two clamping arms are hinged, and the two hand rods are hinged. The two hinge points of the two hand rods and the two clamping arms are collinear with the hinge point of the two hand rods. Corresponding limiting blocks are arranged on the opposite faces of the two hand rods respectively. The brick moving device can be kept in a clamping state without manpower or other auxiliary devices, great convenience is achieved, and labor is saved; and the structure is simple and cost is low.

The invention provides an earthquake alarm which comprises an induction device and an alarm circuit and can be used for sound-light alarming. The earthquake alarm comprises the induction device and the alarm circuit, and is characterized in that the induction device comprises a supporting frame fixed to a bottom plate and a magnet suspended on the supporting frame; the alarm circuit comprises a power supply, a dry reed pipe arranged below the magnet and a sound-light alarm device arranged in the circuit; the dry reed pipe is connected to the circuit in the form of a normally closed point. The alarm comprises the induction device and the alarm circuit, so that an earthquake can be quickly induced and a very good warning effect on people in the earthquake is achieved; a relay J with a self-locking effect is arranged in the alarm circuit, so that an alarm signal can be continuously generated.

The invention discloses a working condition adaptive transmission system of a loader, comprising a basic unit and a variable force hydraulic coupler. In the basic unit, the planetary gear transmission system composed of the first gear, the second gear and the first force distribution wheel, and the planetary gear system composed of the second force distribution wheel, the third gear and the fourth gear can be adjusted according to the three-way output shaft. The rotation resistance automatically adjusts the rotation speed of the output shaft, so as to achieve self-adaptive working condition adjustment. The two shells of the variable force hydraulic coupler are clamped by the first shielding plate and then fixed by fasteners. The shell is provided with two hydraulic coupling wheels, which are separated by the first shielding plate, and the second hydraulic coupling wheel is separated by the first shielding plate. The rotation of the second shielding plate on one side of the shielding plate can change the overlapping area of ​​the second blocking hole and the first blocking hole, thereby changing the coupling power of the variable force hydraulic coupler.

The invention discloses a device for moving bricks, which belongs to the technical field of construction engineering and comprises a movable base, a lifting cylinder and a clamping mechanism for moving bricks; the clamping mechanism for moving bricks includes two clamping arms parallel to each other and two hand levers parallel to each other , one end of the two clamping arms is hinged with one end of the two hand rods respectively, and the two clamping arms are hingedly connected, and the two handle rods are hingedly connected; The hinge points are collinear; there are corresponding limit blocks on the opposite surfaces of the two handles; there is also a clamping cylinder between the two handles, and a T-shaped set along its length is provided on one handle. Slot, a slide block is arranged in the T-shaped slot, the slide block is hinged with the piston rod clamping the cylinder, and the other hand rod is hinged with the cylinder body clamping the cylinder. It is convenient and labor-saving, and has a simple structure and low cost.

The invention discloses a connection structure of a reverse triangular double-ring card pipe fitting connection structure, which includes a joint body, each end of the joint body is provided with a joint cavity, and a pair of reverse triangular rings are arranged in the joint cavity, and the bottom of the joint body is provided with a joint cavity. There is a first snap ring with a notch, and a positioning ring is arranged in the joint cavity at the outer end of the first snap ring with a notch; the present invention squeezes the push ring axially, so that the second snap ring with a notch is squeezed to produce a diameter Deform in the direction, press the supporting pipe material tightly, and then continue to squeeze axially, so that the first notched snap ring enters the first oblique triangle groove of the joint body, presses the supporting pipe material tightly and locks it, and causes the push ring to enter the second groove of the joint body. The inner locking of the oblique triangular card slot realizes the deformation of the inner concave triangular ring and the outer convex triangular ring due to extrusion. The resulting deformation is blocked by the inner wall of the joint body, and can only produce radial compression deformation to the center of the pipe axis, thereby extrusion matching Pipe to produce a hard seal effect.

The invention discloses a self-locking clamp for a color steel tile and a working method thereof. The self-locking clamp comprises a first clamp body, a second clamp body, a first bolt structure and a second bolt structure, and the first clamp body and the second clamp body are the same in structure and comprise limiting plates, positioning plates and clamping plates; clamping hooks are arranged on the limiting plates; the positioning plates are provided with small convex hulls, large convex hulls and positioning holes which are arranged side by side. When a color steel tile photovoltaic track is installed, the first bolt structure and the second bolt structure are loosened, the track can be conveniently placed into the first clamp body and the second clamp body, the positions of the first clamp body and the second clamp body are adjusted, the large convex hull of the first clamp body is embedded into the positioning hole of the second clamp body, the large convex hull of the second clamp body is embedded into the positioning hole of the first clamp body, the first bolt structure and the second bolt structure are locked, and the track is tightly held through the clamping hooks on the limiting plates.

The invention discloses a reverse triangular double-ring pipe clamping piece connecting structure. The structure comprises a joint body; joint cavities are formed in each end in the joint body; pairsof reverse triangular rings are arranged in the joint cavities; first gap clamping rings are arranged at the bottoms; and positioning rings are arranged in the joint cavities at the outer ends of thefirst gap clamping rings. Through axial extrusion of push rings, second gap clamping rings are extruded to radialy deform to tightly press matched pipes; through continuous axial extrusion, the firstgap clamping rings enters first inclined triangular clamping grooves of the joint body to tightly press the matched pipes for locking, and the push rings enter second inclined triangular clamping grooves of the joint body for locking to realize deformation of inner concave triangular rings and outer convex triangular rings due to extrusion; and the generated deformation is only radial compressiondeformation to the centers of pipe shafts due to stop by the inner wall of the joint body, so that the matched pipes are extruded to achieve a hard sealing effect.

The automobile air conditioner air door device includes an executor, a transmission mechanism, an air door baffle, and an air intake box, and the transmission mechanism includes an executor rotation arm, a driving rack and an air door rotation arm. The air door baffle is made to switch the position between the inner air intake and the outer air intake for realizing the inside circulation and the outer circulation of the air inside the automobile to ensure the ventilation and comfort effectively. The simple structure of the transmission mechanism and the small size of the air door device result in greatly reduced size of the whole air intake. In addition, the air door baffle has self-locking effect and the air door has excellent sealing performance.

The invention relates to a small animal tooth extraction tool, which belongs to a tool capable of solving relevant problems of small and middle animal tooth extraction. The small animal tooth extraction tool consists of a clamping system, a fixing system and a tooth extraction system, wherein the clamping system comprises a clamp jaw, a fixed clamp jaw block, a sliding clamp jaw block, a threaded connecting shaft, a worm wheel and worm gear, a worm gear shaft and a worm gear fixing frame; the clamping system forms an opening and closing state through the moving relative to a fixed clamp jaw; fixing assemblies are positioned at the two sides of the clamp jaw, and are fixedly connected with a main body; the height of the fixing position can be regulated through a retaining screw nut; the fixing assemblies can prevent a movable clamp jaw from moving so as to maintain the clamping state; the tool extraction system comprises a wedge-shaped slide block, a lead screw and a handle; the wedge-shaped slide block of the tooth extraction system is matched with an inclined groove formed in the sliding clamp jaw so that the clamping system upwards moves. Compared with the prior art, the small animal tooth extraction tool has the advantages that the operation is simple and fast; the work efficiency and the precision can be improved; the operation risk can be reduced.

The energy-saving building construction lifting platform with the protection function comprises a bottom plate, supporting frames are fixedly connected to the left side and the right side of the upper end face of the bottom plate, and a top plate is fixedly connected to the upper ends of the supporting frames; a lifting bearing frame is arranged on the upper side of the bottom plate; and the front end of the lifting bearing frame is connected with a frame door through a hinge. According to the lifting platform for building construction, the lifting bearing frame can be conveniently limited and locked through the falling protection mechanism under the condition that a pull rope is broken, so that the use safety of the lifting platform for building construction can be effectively improved, and the locking of the lifting bearing frame can be conveniently buffered through a buffer spring, so that the injury of workers caused by sudden stop is avoided; and a driving motor with relatively low power can be conveniently selected through cooperation of a pulley block, so that the energy-saving performance of the lifting platform for building construction is improved.

The invention discloses a permanent magnet synchronous spiral linear motor, which is characterized in that the iron core of a motor armature is made into a plurality of circles of a spiral iron core with an equal pitch, a plurality of notches uniformly distributed on an inner circle of the spiral iron core are embedded with a three-phase coil group capable of axially penetrating through the plurality of circles of the spiral iron core, or three-phase windings are sequentially embedded along the spiral direction of the spiral iron core; an excitation body of the motor is formed by spirally attaching a plurality of permanent magnet tiles with the N poles and S poles being alternately arranged to the periphery of a cylindrical magnetic yoke with a ball thread; and the excitation body and the armature are coaxially sleeved together, and the three-phase coil group of the armature is powered by a control circuit to form a spiral magnetic field so as to drag the excitation body to perform synchronous spiral motion. The permanent magnet synchronous spiral linear motor produces compound motion, that is, there is a speed ratio between the rotary motion and the linear motion, and the speed ratio can increase the thrust of the motor and the speed of the linear motion; and the high-precision linear motion can be obtained without an intermediate conversion mechanism.

The invention discloses a safe and reliable two-section type covering and uncovering device for a ladle. The safe and reliable two-section type covering and uncovering device for the ladle comprises a ladle cover, electric-hydraulic pushers and a base. The ladle cover is connected with telescopic rockers and guide rockers in a rotating mode. Each telescopic rocker comprises rocker arms and gear transmission cases. Each gear transmission case comprises a case body which is connected with the base in a rotating mode. A gear transmission set comprising a power input rotating shaft and power output gears is arranged in each case body, and one gear of each gear transmission set is an incomplete gear. Each case body is fixedly connected with the power input rotating shaft of the corresponding gear transmission set. Each case body is further provided with a sliding groove. The rocker arms are in sliding connection with the case bodies through the sliding grooves, and the case bodies are driven by the rocker arms to rotate together with the rocker arms. One end of each rocker arm is connected with the ladle cover in a rotating mode. Teeth are arranged at the other end of each rocker arm so that a rack can be formed, and each rack is engaged with the power output gears of the corresponding gear transmission set. The rocker arms in each telescopic rocker are connected with the corresponding electric-hydraulic pusher.

The invention discloses a transformer core vertical tilter comprising a tilting carrier, a supporting device and a driving system, wherein the tilting carrier is in a columnar shape, and a carrying zone for carrying a transformer core is arranged on the tilting carrier; the supporting device is used for horizontally supporting the tilting carrier, and the driving system is used for driving the tilting carrier to rotate around an axis, thereby driving the transformer core in the carrying zone to vertically tilt. The invention has the advantages of simple structure and low cost and can realize the stable and vertical tilting of the transformer core and avoid the deformation of a core sheet.

The invention discloses a method for controlling water feeding of a pressure water valve by using a water current resistance change box. The method comprises a solar water tank; the water current resistance change box is mounted on the solar water tank; the upper part of the water current resistance change box is an overflow storage cavity; a valve hole is formed in a valve hole plate at the lower part of the overflow storage cavity; a floating valve cavity is below the valve hole plate; a valve cover is on a floating object in the floating valve cavity; a floating pipe is inserted in a hole between the floating object and the valve cover; a thin through hole is in the floating pipe; when no water is in an impedance box, the floating object falls down to enable the valve cover to leave from the valve hole; the thin through hole can enable an air clearance to become smooth in middle of the valve hole; at this time, the pressure in the water tank is lower; when water fed in the solar water tank is ascended into the water current resistance change box, the floating object upwards floats to close the valve hole; only the thin through hole is remained for passing through water; at this time, the pressure in the water tank is suddenly increased; and the suddenly increased pressure closes a self-locking pressure water valve. The method for controlling water feeding of the pressure water valve by using the water current resistance change box has no need to pull conduction wires into user homes, is liable to adjust and excellent in reliability, and is a good helper for water conversion of the solar water tank.

The invention discloses a method for controlling water feeding of a pressure water valve by using a water current resistance change box. The method comprises a solar water tank; the water current resistance change box is mounted on the solar water tank; the upper part of the water current resistance change box is an overflow storage cavity; a valve hole is formed in a valve hole plate at the lower part of the overflow storage cavity; a floating valve cavity is below the valve hole plate; a valve cover is on a floating object in the floating valve cavity; a floating pipe is inserted in a hole between the floating object and the valve cover; a thin through hole is in the floating pipe; when no water is in an impedance box, the floating object falls down to enable the valve cover to leave from the valve hole; the thin through hole can enable an air clearance to become smooth in middle of the valve hole; at this time, the pressure in the water tank is lower; when water fed in the solar water tank is ascended into the water current resistance change box, the floating object upwards floats to close the valve hole; only the thin through hole is remained for passing through water; at this time, the pressure in the water tank is suddenly increased; and the suddenly increased pressure closes a self-locking pressure water valve. The method for controlling water feeding of the pressure water valve by using the water current resistance change box has no need to pull conduction wires into user homes, is liable to adjust and excellent in reliability, and is a good helper for water conversion of the solar water tank.