47results about How to "Prevent abnormal movement" patented technology

The invention relates to an elevator technology, in particular to an anti-slip protection device for an elevator, and solves the problem that a slip accident is caused because the moment of a brake is inappropriately adjusted in the mounting process of the elevator, or maintenance personnel neglect to maintain the brake in the using process of the elevator. The device comprises a rope gripper, a brake verification switch arranged on the elevator brake, and a main control unit, and is characterized in that a locking hook connecting rod stretches out of one end of the rope gripper; a trigger ejector rod is arranged at the upper end of the locking hook connecting rod; a trigger pull rod is perpendicular to the trigger ejector rod; one end of the trigger pull rod is matched with a magnet ejector rod at the end of an electromagnet; and the electromagnet is controlled by the main control unit. By the device, the phenomenon that a car moves when the elevator is in a stop state is avoided; a door opening signal is cut off, and a forcible door closing signal is given in case of an anomaly; and the car can be prevented from continuously moving when the elevator slips, a car door can be forcibly closed, passengers are prevented from leaving the car, and the running safety of the elevator is greatly improved.

The invention discloses a device for preventing an elevator cage from abnormally moving. The device comprises a braking mechanism installed on a cage large beam, a reset mechanism arranged at one end of the braking mechanism, and an electrical detecting mechanism. The braking mechanism comprises a shell. A U-shaped action jaw is arranged on one lateral side of the shell. An elevator T-shaped guide rail is located in the U-shaped action jaw. Electromagnets and brake pads are symmetrically arranged on the two sides of the U-shaped action jaw. The brake pads are installed at the ends of the electromagnets and are stretched out and drawn back under the control of the electromagnets so as to clamp and release the elevator T-shaped guide rail. The electrical detecting mechanism comprises a magnetic strip installed on the elevator T-shaped guide rail and a magnetic strip sensor opposite to the magnetic strip. The magnetic strip sensor is installed on the side, with the U-shaped action jaw, of the shell. By the adoption of the mechanical and electrical integration design, the device has the advantages of being capable of conducting detection and recognition automatically, high in response speed and short in braking length.

The invention provides a braking device for preventing an abnormal movement of an elevator lift car with doors being in an opening condition. The braking device for preventing the abnormal movement of the elevator lift car with the doors being in the opening condition comprises a pushing rod which is fixedly connected onto lift car doors; a rocking rod with a steering rod is hinged onto a rocking rod rack and pushed to swing by the pushing rod as the lift cars open and close, wherein the rocking rod rack is fixedly connected onto the lift car; connecting rods are hinged to the rocking rod and guiding rods are hinged to the connecting rods; the guiding rods are driven by the connecting rods, which are driven by the rocking rod, to move in guiding rails, which are fixedly connected onto the lift car by supporting frames, to complete a telescopic motion; braking is applied and released to the elevator lift car by inserting the guiding rods into clamping grooves which are fixed on a wall of a well and drawing the guiding rods out from the clamping grooves. The guiding rods are inserted into the clamping grooves on the wall of the well when the lift car doors open for a very small distance and drawn out from the clamping grooves when the lift car doors close with a very small gap left, so that the space that a passenger enters or exits the lift car doors can be protected for preventing the passenger from a shearing injury. An elevator safety circuit control mechanism is added, therefore when the lift car moves abnormally with the door being in the open condition, the elevator safety circuit can be broken to make the abnormal movement of the elevator lose a driving force, so that the abnormal movement of the lift car can be prevented more reliably.

The invention discloses an environmental protection mechanism for color wear-resistant bobbin paper cutting equipment. The environmental protection mechanism comprises a support plate. A support frameis fixedly connected to the left side of the top of the support plate. According to the environmental protection mechanism, the support plate, the support frame, a first air cylinder, a shell, a motor, a cutting disc, a second air cylinder, a rolling wheel, a positioning rod, a limiting block, a positioning ring, a first spring, a trapezoidal block, a vertical rod, a fixing block, support rods, afixing seat, a bobbin paper, support legs, a transverse plate, a suction fan, a connecting pipe, a dust collecting cover, a filter box, a filter screen, an air outlet pipe, a collecting hopper, a clamping groove and a clamping mechanism are matched and used. The environmental protection mechanism solves the problem that most of an existing cutting devices fix color wear-resistant bobbin paper manually by workers. The environmental protection mechanism for the color wear-resistant bobbin paper cutting device has the beneficial effects of automatically fixing the color wear-resistant bobbin paper, reducing the labor intensity of users and improving the cutting efficiency of the color wear-resistant bobbin paper.

The invention discloses an automatically-adjusted rehabilitation training device for the neurology department. The device comprises two stand columns distributed front and back. The upper ends of thestand columns are fixedly connected with the lower ends of first spring rods. First strip-shaped racks are arranged on the right sides of the small gears in a meshing fit mode respectively, vertical rods are arranged in the right portions of the box bodies respectively, the two ends of the transverse pipes are fixedly connected with the corresponding box bodies through connecting rods respectively, the inner ends of the rotating shafts are fixedly connected with the upper ends of rotating rods respectively, and pedals are fixedly installed at the lower ends of the rotating rods respectively. The device is simple in structure, and ingenuous in concept, the swing amplitude range of the spacewalk machine pedal can be automatically increased step by step; meanwhile, a limiting device is arranged, so that accidents are prevented, the swing range of the pedal can be adjusted, and an automatic reset device is arranged, so that when the device is used for the second time, the swing range of the pedal is within a small range, subsequent users are prevented from being injured, market requirements can be met, and the device is suitable for popularization.

The invention discloses an intelligent anti-theft well lid. Two lock seats are arranged in the positions, close to the edge, of the bottom of the well lid. Each lock seat is provided with a strip-shaped key slot from top to bottom. One side of each lock seat is provided with a key hole, and the other side of each lock seat is provided with a locking piece. Each locking piece is composed of a long arm and a short arm, the corner of the joint of the long arm and the short arm is hinged to a positioning block which is fixed to the bottom of the well lid, and the top of the short arm is provided with an arc-shaped lock catch groove. A WI-FI antenna is embedded in the middle of the well lid. The bottom surface of the middle of the well lid is provided with a control box. A displacement sensor and a router are arranged in the control box. The displacement sensor is connected with the router through a control circuit. The router is connected with the WI-FI antenna through a cable. The intelligent anti-theft well lid is ingenious in design, simple in structure and easy to implement. On one hand, the intelligent anti-theft well lid has the anti-theft function and is remarkable in anti-theft effect; on the other hand, the intelligent anti-theft well lid can realize complete WI-FI coverage of a wireless hotspot, can be widely applied to the places such as highway sides, pedestrian streets and squares and brings convenience to life of people.

The invention discloses a drying device for Pu'er cooked tea fermentation. The drying device comprises a carrying plate, the right side of the top of the carrying plate is fixedly connected with a fixing plate, and a drying net barrel is arranged at the top of the carrying plate. Through matched use of the carrying plate, the fixing plate, the drying net barrel, a motor box, a rotating plate, a first motor, a rotating shaft, a stirring piece, a feeding hopper, a discharging pipe, a transmission plate, a transmission rod, supporting legs, a transverse plate, a box body, a supporting plate, a second motor, a worm, a first bearing, a rotating rod, a worm wheel, a disc, a transmission column, a positioning rod, a positioning ring, a transmission frame, a cross rod, a vertical plate, a liftingframe, a fan, a first hot air pipe, a heating device, a second hot air pipe and an air outgoing head, the problem that existing drying devices for Pu'er tea do not have a shaking function caused by the fact that most of the drying devices are in horizontal arrangement is solved. The drying device has the advantage of high drying efficiency, and drying efficiency of the drying device is improved.

The invention discloses a hot-pressing curing device of a corrugated packaging paper box. The device comprises a bottom box. The bottoms of the two sides of the bottom box are fixedly connected with rollers, the top of the right side of the inner wall of the bottom box is fixedly connected with an air cylinder, the left end of the air cylinder is fixedly connected with a movable plate, and the interior of the bottom box is fixedly connected with a sliding rod transversely. Through the cooperative use of the bottom box, the rollers, the air cylinder, the movable plate, the sliding rod, a sliding ring, a movable rod, a transmission block, sliding grooves, sliding blocks, partitions, a trapezoidal block, a transmission groove, reset mechanisms, supporting legs and cushion blocks, the partitions descend to drive the cushion blocks to descend through the supporting legs, when the cushion blocks make contact with the ground and the rollers are separated from the ground, the purpose of facilitating fixation is achieved, and the problem that an existing hot-pressing curing device is inconvenient to fix is solved. The hot-pressing curing device of the corrugated packaging paper box has thebeneficial effect of facilitating fixation, the stability of the hot-pressing curing device is improved, and the practicality of the hot-pressing curing device is improved.

The invention discloses a cutting machine for solar support machining. The cutting machine comprises a carrier plate, supporting legs are fixedly connected to the two sides of the bottom of the carrier plate correspondingly, a transverse plate is fixedly connected to the bottoms of the inner sides of the supporting legs, a shell is fixedly connected to the top of the transverse plate, and the topof the shell is fixedly connected with the bottom of the carrier plate; and a gear motor is fixedly connected to the back face of the inner wall of the shell, a cam is fixedly connected to the outputend of the gear motor, sliding rods are fixedly connected to the two sides of the bottom of the inner wall of the shell, sliding rings are slidably connected to the surfaces of the sliding rods, and alifting plate used in cooperation with the cam is fixedly connected to the inner sides of the sliding rings. According to the cutting machine for solar support machining, the problem that solar supports cannot be conveniently fixed through an existing cutting device by a user is solved, the beneficial effect of being convenient to fix is achieved, a large amount of time is saved for the user, andthe working efficiency of the cutting device is improved.

The invention provides an automatic feed processing and feeding system. The system comprises a feeding device, a crushing device, a heating device and a conveying device; the crushing device is provided with an inlet and an outlet, the feeding device is arranged at the inlet of the crushing device, the outlet of the crushing device is close to the heating device, and the feeding device, the crushing device, the heating device and the conveying device are communicated with a control device separately; raw materials put into the feeding device are cut up through the crushing device, then put into the heating device to be heated and cooked thoroughly and finally conveyed to the feeding place through the conveying device, the conveying device can automatically move to the feeding place, and the feeding device, the crushing device, the heating device and the conveying device are controlled by the control device; automatic processing and feeding can be achieved by setting the process and time on the control device, manpower can be omitted, and full automation is achieved.

The invention discloses a pressure vessel with an anti-blocking structure. The pressure vessel comprises a body, the top of the left side of the body communicates with a feeding pipe, the bottom of the body communicates with a discharging pipe, the top of the body is fixedly connected with a shell, the right side of the bottom of the inner wall of the shell is fixedly connected with an air cylinder, and the top of the air cylinder is fixedly connected with a transverse plate; and a connecting plate is movably connected to the left side of the front face of the transverse plate, a sliding groove is formed at the bottom of the inner wall of the shell, a sliding block is slidably connected into the sliding groove, a movable plate is fixedly connected to the top of the sliding block, the bottom of the back face of a connecting plate is movably connected with the bottom of the front face of the movable plate, and a transmission rod is fixedly connected to the top of the front face of the movable plate. The pressure vessel with the anti-blocking structure solves the problem that an existing pressure vessel does not have the anti-blocking function, has the advantage of having the anti-blocking function, saves a large amount of time for a user, and improves the practicability of the pressure vessel.

The invention discloses a pulverizing device with convenient material discharging for agricultural straw. The device comprises a bottom plate, a support seat is welded to the left side of the top of the bottom plate, a support frame is movably connected to the front side of the support seat, and the top of the support frame is fixedly connected with a pulverizing box. Through the cooperation use of the bottom plate, the support seat, the support frame, the pulverizing box, a driving plate, a slanting hole, a sliding groove, a sliding block, a moving plate, a driving rod, a tooth plate, a box body, a support plate, a first motor, a gear, a transverse plate, a first vertical plate, a second motor, a circular disc, a driving column, a guiding groove, a guiding block, a second vertical plate,a driving frame, a third motor, a pulverizing rod, a blade, a discharging device and a feeding device, and the problem that an existing pulverizing device for the straw inconveniently discharges materials is solved; the pulverizing device with the convenient material discharging for the agricultural straw has the advantages of facilitating material discharging, saving a large amount of time for auser and improving the practicability of the pulverizing device for the straw.

The invention discloses an anti-fall protection device for an automatic doffing roving machine, which comprises the automatic doffing roving machine, wherein a shell body is fixedly connected to the bottom of the inner side of the automatic doffing roving machine; bobbins are arranged at the top of the shell body; clamping grooves are formed in the bottoms of two sides of the inner walls of the bobbins; and a pull rod is arranged inside the shell body. Through matching use of the automatic doffing roving frame, the shell body, the bobbin, the clamping grooves, the pull rod, a lifting plate, transmission rods, partition plates, cross rods, moving plates, tension springs, inclined holes, moving rods, clamping rods, a supporting plate, a sliding rod, positioning grooves, a sliding ring, a positioning mechanism, a stretchable hose, a suction head, a filter tank, a suction fan, a connecting pipe, a filter screen and an air outlet pipe, the problem that the bobbin for the existing automaticdoffing roving machine is easy to fall is solved; the anti-falling protection device for the automatic doffing roving machine has the advantage of falling prevention, and is convenient for users to produce roving, the production period of roving is shortened.

The invention belongs to the technical field of artificial joints, and particularly relates to a knee joint prosthesis with a posterior cruciate ligament. The anatomical form knee joint prosthesis with the posterior cruciate ligament comprises a femoral condyle and a tibial plateau pad, wherein the femoral condyle comprises entocondyle, lateral condyle and blocks, the entocondyle and the lateral condyle both are in the shape of C, and the intercondylar void is intercondylar fossa. The entocondyle and the lateral condyle are connected through the blocks, an inclined angle of the connecting lineof the lowest point of the entocondyle and the lowest point of the lateral condyle and the horizontal line is 3 degrees, and the tibial plateau pad comprises an entocondyle pit and a lateral condylepit to accommodate the entocondyle and the lateral condyle. According to the technical scheme, the pace of a postoperative patient is natural, the bending degree of the femoral condyle is increased, actions of going up and down stairs, deep squating, kneeling posture and the like are facilitated, and kneecap clicking and anterior knee pain can be reduced.

The invention relates to a natural cold storage cooling air-conditioner and belongs to the field of the air-conditioner for a building. The natural cold storage cooling air-conditioner consists of a cooling body, a water supply and drainage system, an indoor reinforced heat exchange fan, an outdoor reinforced cooling fan, a sunshade, a solar photovoltaic power supply system, a ventilation decorated grid and a water temperature and water level displayer, wherein the cooling body is arranged above the ventilation decorated grid and connected with the indoor reinforced heat exchange fan and / or the outdoor reinforced cooling fan through the water supply and drainage system; and the solar photovoltaic power supply system provides a power source for the indoor reinforced heat exchange fan and / or the outdoor reinforced cooling fan. The invention overcomes the defect of the conventional air-conditioning technique, and provides the simple and reliable natural cold storage cooling air-conditioner which is independent of the conventional energy system, along with zero release of greenhouse gas and harmful substances, transfers the indoor heat in the building unidirectionally and radiates the heat to the outside by the way of cold storage and cooling and by using the naturality and the interaction of metal, water, air, the sun and the space to reduce the indoor temperature of the building and enable the building to have the comfortable use function in a hot climatic environment for the building with the installation condition in the hot climate region.

The invention discloses transportation equipment capable of preventing articles from falling off for new material machining. The transportation equipment comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a transportation equipment body. According to the transportation equipment, through cooperative use of the bottom plate, the transportation equipment body, abox body, a rotating disc, a positioning hole, a positioning rod, a positioning groove, a rotating rod, a first bevel gear, a first bearing, a rotating shaft, a second bevel gear, a disc, a transmission rod, a fixed block, a rotating plate, a transmission hole, a transmission column, a supporting rod, a positioning sleeve, a moving rod, a moving frame, a vertical plate, a clamping rod, a lifting device, a lifting rod, a clamping groove, a lifting plate and a baffle, the problem that existing transportation equipment for new material machining does not have a function of preventing the articlesfrom falling off is solved, the transportation equipment capable of preventing the articles from falling off for new material machining has the advantage of preventing the articles from falling off,a damage rate of new material transportation is reduced, and the practicability of the transportation equipment for new material machining is improved.

The invention discloses a garment button automatic assembling machine. The machine comprises a bottom box. A supporting block is fixedly connected to the bottom of the right side of the inner wall ofthe bottom box, an air cylinder is movably connected to the front face of the supporting block, a fixing block is fixedly connected to the bottom of the inner wall of the bottom box, a rotating plateis movably connected to the front face of the fixing block, and the front face of the rotating plate is movably connected with the left end of the air cylinder. Through arranging and using the bottombox, the supporting block, the air cylinder, the fixing block, the rotating plate, the transmission rod, the sliding groove, the sliding block, the transverse plate, the frame, the ejector rod, the workbench, the machining groove, the groove, the ejector plate and the assembling machine body in cooperation, the garment button automatic assembling machine solves the problem that an existing buttonautomatic assembling machine is inconvenient for a user to take out button products, has the advantage of being convenient for discharging, saves a large amount of time for the user, shortens the processing time of the button products, and improves the production efficiency of the button automatic assembling machine.

The invention discloses a medical instrument movement control system and method.The medical instrument movement control system comprises a safety switch used for confirming the operation state of a user in real time and forming a first electric signal for output according to the operation state of the user. Before the control unit controls the driving motor to complete corresponding power output, the safety switch is used for judging the operation intention of a user, and the medical instrument is driven to move only when it is judged that the user has the operation intention, so that the movement control safety of the medical instrument is improved; meanwhile, before the control unit controls the driving motor to complete corresponding power output, misoperation removal is conducted on the expected power output state of the driving motor, abnormal movement, caused by accidental collision and accidental touch, of the medical instrument is avoided, and the movement control safety and stability of the medical instrument are further improved.

The invention discloses a moisture-proof mechanism of a silk quilt storage device. The moisture-proof mechanism comprises a storage device, the bottom of the inner wall of the storage device is fixedly connected to a heating rod, the interior of the storage device is transversely and fixedly connected to a grating, a cover plate is movably connected to the top of the left side of the storage device through a hinge, a connecting plate is fixedly connected to the right side of the cover plate, and a connecting rod is fixedly connected to the bottom of the connecting plate. According to the moisture-proof mechanism of the silk quilt storage device, the storage device, the heating rod, the grating, the cover plate, the connecting plate, the connecting rod, a box body, a clamping groove, a sliding rod, a sliding ring, a movable plate, a clamping rod, a spring, a trapezoidal block, a sliding groove, a sliding block, a lifting plate, a transmission rod, a top rod and a vent hole are arrangedand used cooperatively, the problem that an existing silk quilt storage device does not have a moisture-proof function is solved, and the moisture-proof mechanism of the silk quilt storage device hasthe advantages of being with the moisture-proof function, convenient for a user to use, and capable of improving the practicability of the silk quilt storage device.

The invention discloses a filtering mechanism of a ceramic processing pug stirring device. the filtering mechanism comprises a stirring device, the left side of the top of the stirring device is provided with a filtering shell in a communicating mode, supporting blocks are fixedly connected to the two sides of the inner wall of the filtering shell, a filtering net is arranged at the tops of the supporting blocks, and a clamping groove is formed in the right side of the filtering net. According to the filtering mechanism, the stirring device, the filtering shell, the supporting blocks, the filtering net, the clamping groove, a transverse plate, a sliding rod, a sliding ring, a spring, a guide rod, a guide groove, a movable plate, an inclined hole, a lifting plate, a sliding block, a slidinggroove, a connecting plate, a transmission rod, a clamping rod, a cover plate and a first handle are arranged for cooperative use, so that the problem that an existing stirring device filtering mechanism is not convenient for a user to replace a filtering net is solved; the filtering mechanism of the ceramic processing pug stirring device has the advantages that the filtering net can be replacedconveniently, a lot of time of the user is saved, and the practicability of the filtering mechanism of the stirring device is improved.

The invention relates to an elevator technology, in particular to an anti-slip protection device for an elevator, and solves the problem that a slip accident is caused because the moment of a brake is inappropriately adjusted in the mounting process of the elevator, or maintenance personnel neglect to maintain the brake in the using process of the elevator. The device comprises a rope gripper, a brake verification switch arranged on the elevator brake, and a main control unit, and is characterized in that a locking hook connecting rod stretches out of one end of the rope gripper; a trigger ejector rod is arranged at the upper end of the locking hook connecting rod; a trigger pull rod is perpendicular to the trigger ejector rod; one end of the trigger pull rod is matched with a magnet ejector rod at the end of an electromagnet; and the electromagnet is controlled by the main control unit. By the device, the phenomenon that a car moves when the elevator is in a stop state is avoided; a door opening signal is cut off, and a forcible door closing signal is given in case of an anomaly; and the car can be prevented from continuously moving when the elevator slips, a car door can be forcibly closed, passengers are prevented from leaving the car, and the running safety of the elevator is greatly improved.

The invention relates to an anatomical knee joint prosthesis. The anatomical knee joint prosthesis comprises a femoral condyle, a tibial plateau pad and a tibial plateau support. An upright post protruding upwards is arranged on the tibial plateau pad. The femoral condyle comprises a pulley, a preartis, an intercondylar groove and a postartis. The thickness of the postartis at the external condyleis 6-8 mm, and the thickness of the postartis at the internal condyle is 8-10 mm. The connecting line between the maximum curvature point on the postartis at the external condyle and the maximum curvature point on the postartis at the internal condyle forms an included angle of 3 degrees with the horizontal plane. The connecting line between the end part of the postartis and the end of the intercondylar groove forms an included angle of 15 degrees with the horizontal plane. The top surface of the inner side of the plateau and the top surface of the outer side of the plateau are both in the shape of a curved surface with a concave inner part and a convex edge, and the inner side of the plateau further sinks towards the inner part of the tibial plateau pad relative to the outer side of theplateau. The tibial plateau pad and the tibial plateau support are fixedly connected in a clamping manner. The anatomical knee joint prosthesis has the effect of better fitting the human body.

The invention discloses an outer wall welding unit for gaseous pollutant purification equipment, and relates to the technical field of plate welding. The outer wall welding unit solves the problems that production efficiency is low, manpower is wasted, and welding sealing performance can not be guaranteed. According to key points of the technical scheme, the outer wall welding unit for the gaseouspollutant purification equipment comprises a horizontal bracket, vertical brackets oppositely arranged on two sides of the horizontal bracket, a pressing rail with one end hinged to the horizontal bracket, a moving seat sliding in the length direction of the pressing rail, and two welding guns mounted on the moving seat. According to the outer wall welding unit for the gaseous pollutant purification equipment, production efficiency is improved, the labor cost is lowered, and sealing performance and uniformity of a weld line are improved.

The invention discloses a locating mechanism of a semi-automatic liquid filling line. The locating mechanism comprises a filling device body. The left side of the back face of the inner wall of the filling device body is fixedly connected with a gear motor. The output end of the gear motor is fixedly connected with a rotating disc. The right side of the front face of the rotating disc is fixedly connected with a transmission rod. The bottom of the left side of the inner wall of the filling device body is fixedly connected with a sliding rod. The surface of the sliding rod is in sliding connection with a sliding ring. Through cooperative use of the filling device body, the gear motor, the rotating disc, the transmission rod, the sliding rod, the sliding ring, a moving frame a connecting rod, a first clamp block, a carrier plate, a vertical rod, a second clamp block, a hopper, a cover plate and a handle, the problem that a liquid container is inconvenient for a user to locate due to an existing locating mechanism is solved, the locating mechanism of the semi-automatic liquid filling line has the advantage of facilitating locating, a large amount of time of the user is saved, and practicality of the locating mechanism is improved.

The invention discloses an adsorption catalysis device for organic waste gas purification. The adsorption catalysis device comprises a bottom plate, wherein a filtering tank is fixedly connected to the left side of the top of the bottom plate, an exhaust fan is arranged on the left side of the filtering tank, the output end of the exhaust fan communicates with a first connecting pipe, and the end, away from the exhaust fan, of the first connecting pipe penetrates into the filtering tank. Through cooperative use of the bottom plate, the filtering tank, an exhaust fan, a first connecting pipe, a filter screen, a water pump, a second connecting pipe, a third connecting pipe, a branch pipe, an atomizing nozzle, a fourth connecting pipe, an adsorption tank, activated carbon and a catalyst, the problems that an existing adsorption catalysis device cannot be used for pretreating organic waste gas, and dust particles in the machine waste gas cannot be filtered are solved. The adsorption catalysis device for organic waste gas purification has the advantage of filtering function; the adsorption catalysis device has a filtering function, so that the working efficiency of the adsorption catalysis device is improved.

The invention discloses an intelligent anti-theft well lid. Two lock seats are arranged in the positions, close to the edge, of the bottom of the well lid. Each lock seat is provided with a strip-shaped key slot from top to bottom. One side of each lock seat is provided with a key hole, and the other side of each lock seat is provided with a locking piece. Each locking piece is composed of a long arm and a short arm, the corner of the joint of the long arm and the short arm is hinged to a positioning block which is fixed to the bottom of the well lid, and the top of the short arm is provided with an arc-shaped lock catch groove. A WI-FI antenna is embedded in the middle of the well lid. The bottom surface of the middle of the well lid is provided with a control box. A displacement sensor and a router are arranged in the control box. The displacement sensor is connected with the router through a control circuit. The router is connected with the WI-FI antenna through a cable. The intelligent anti-theft well lid is ingenious in design, simple in structure and easy to implement. On one hand, the intelligent anti-theft well lid has the anti-theft function and is remarkable in anti-theft effect; on the other hand, the intelligent anti-theft well lid can realize complete WI-FI coverage of a wireless hotspot, can be widely applied to the places such as highway sides, pedestrian streets and squares and brings convenience to life of people.

The invention discloses anti-deformation stamping equipment for sheet metal part machining. The equipment comprises a stamping machine shell, wherein a female die mechanism is arranged in the stamping machine shell, and the female die mechanism is used for detecting the thickness of a sheet metal part and making corresponding changes; the female die mechanism is correspondingly provided with a male die mechanism, the male die mechanism comprises a hydraulic cylinder fixedly connected with the stamping machine shell, the hydraulic cylinder controls a hydraulic rod, an electromagnet is fixedly arranged on the hydraulic rod, and a stamping rod is fixedly arranged on the electromagnet. According to the equipment, the stamping diameter of a male die can be changed according to the thickness difference of the sheet metal parts, the sheet metal parts with different thicknesses can be effectively stamped, a sensor can judge the thickness condition of the sheet metal parts and control the electromagnet to be powered on and powered off, a stamping ring can change the stamping diameter of the male die along with movement, a reel can control the movement of an abutting block, abnormal movement of the stamping ring is prevented, an elastic piece can eject the stamping part out of a female die after stamping is completed, and a stamping part can be taken out conveniently.

The invention discloses environment-friendly rice deep-processing polishing equipment comprising a box. The left side of the top of the box communicates with a feeding hopper, and the position, on theleft side of the feeding hopper, of the top of the box is fixedly connected with an anti-blocking device. The right side of the top of the box is fixedly connected with a dust removing device, and the right side of the bottom of the inner wall of the box is fixedly connected with a polishing cylinder. According to the environment-friendly rice deep-processing polishing equipment, the box, the feeding hopper, the anti-blocking device, the dust removing device, the polishing cylinder, a first motor, polishing rollers, a discharging pipe, a screening box, sliding rings, polished rods, limiting rings, springs, a screening net plate, a telescopic hose, a rice crushing pipe, a shaking plate, an idler wheel, a supporting plate, a second motor and a cam are arranged and used cooperatively, so that the problem of low screening efficiency of existing rice deep-processing polishing equipment is solved; and the rice deep-processing polishing equipment has the advantage of high screening efficiency, so that a large amount of time of a user is saved, and the practicability of the rice deep-processing polishing equipment is improved.