448results about How to "Avoid pinching" patented technology

The invention relates to a detector which comprises a circular turntable, a door, a first motor, a second motor and a third motor, a plurality of test channels are arranged on the turntable, a detection card can be inserted into each test channel, at least one pair of process grooves are formed in two opposite side walls of each test channel, the detector further comprises a sliding block, and after the detection cards complete detection, the sliding block is inserted into the process grooves. The turntable rotates and conveys the detection card to an initial position close to the sliding block, the third motor is started and drives the sliding block to push the detection card after detection to exit from the test channel from the initial position, and then the sliding block returns to the initial position; the length of the two side edges of the sliding block is larger than the length of the process grooves in the two opposite side walls of the test channel, and therefore the sliding block cannot be clamped in the process grooves when sliding in the test channel. According to the detector, when the detection card exits, the detection card cannot be stuck in the analysis test channel, so that the failure rate of the detector is reduced, a guarantee is provided for accurate test of the detector, and the detector is suitable for various detection occasions.

The utility model discloses a uniform mixing device for reagent analysis, relates to the field of uniform mixing, and provides the following scheme aiming at the problems that the manual uniform mixing is often adopted during the existing reagent analysis, so that the uniform mixing is often caused, or the detection effect is poor due to overlarge shaking force, the uniform mixing device comprises a base and an operating device, the operation device is arranged on the outer side of a side plate of the base, a supporting column is arranged below the base and used for supporting the device, a uniform mixing mechanism is arranged on the base and used for uniformly mixing liquid, the uniform mixing mechanism comprises a uniform mixing plate, and a plurality of placing openings are formed in the uniform mixing plate. The device is novel in structure, the spring of the device rebounds to clamp the test tube, and the motor drives the uniform mixing plate to rotate, so that a reagent in the test tube is uniformly mixed, and the heating tube is used for heating, so that the temperature in the test tube is kept constant under the condition of lower temperature.

The invention provides a positioning and hanging device for box girder installation, and relates to the technical field of box girder hanging, the positioning and hanging device comprises a hanging installation piece, and a hanging connection piece is installed on the hanging installation piece; four lifting control pieces are mounted on the hanging connecting piece; the hanging connecting piece is used for being hung on a hook of a crane; two rotating control pieces are rotationally installed on the hanging connecting piece, downward traction balance weight work can be achieved through the adopted traction balance weight device, meanwhile, the bridge pier positioning device is matched with the mode that the bridge pier positioning device is directly installed on the adjacent bridge piers in a sliding mode, the vertical supporting characteristic of the bridge piers is utilized, the bridge pier positioning device only can vertically ascend and descend to slide, and therefore the bridge pier positioning device can be installed on the adjacent bridge piers in a sliding mode. The box girder main body at the top of the traction supporting channel steel can be automatically leveled; the positioning and hanging device solves the problems that an existing positioning and hanging device for box girder installation is inconvenient to achieve pier guiding and self-horizontal installation and usually depends on adjustment of two cranes, and the box girder is prone to being affected by wind power to collide in the installation process.

The invention discloses a glass fiber reinforced plastic fiber pipe wear resistance detection tool, and relates to the field of data acquisition and processing.The glass fiber reinforced plastic fiber pipe wear resistance detection tool comprises a box body, a leakage groove is formed in the top of the box body, a sealing disc is fixedly installed on the front side of the box body, a machine top box is fixedly installed at the top of the box body, and a grinding device is arranged in the machine top box; a chassis is fixedly mounted on the front side of the box body, a clamping device is arranged on the front side of the box body, and a cleaning device is arranged in the box body; wherein the clamping device is used for preventing a fiber pipe from being damaged by clamping due to too large clamping force caused by excessive torsion of a screw rod due to misoperation of a worker, so that the efficiency of subsequent grinding detection is reduced, and the grinding device is used for preventing data generated by grinding from causing errors along with accumulation of dust at a grinding part, so that the accuracy of grinding detection is improved; the cleaning device enables dust attached to the inner wall of the collecting pipe to be vibrated off, and the cleaning efficiency is improved.

The invention discloses a steel structure prefabricated part welding device, and relates to the technical field of steel structure part welding machining, the steel structure prefabricated part welding device comprises a storage table, and a rectangular through hole is formed in the storage table; and the electric rolling wheels are used for conducting sliding unloading on the welded H-shaped steel columns in a rolling contact mode, a large round hole is formed in the top of the storage table, an annular cylinder is fixedly connected to the inner wall of the large round hole, and an annular rubber pad is fixedly connected to the top of the annular cylinder. The H-shaped steel column at the top is driven to slide and unload together when the electric rollers rotate, so that the problem that the H-shaped steel column is difficult to be quickly carried down from a machining table after being welded due to the influence of the special shape of the H-shaped steel column is solved, and a web plate at the top of an annular rubber pad is tightly adsorbed and fixed when an inner sliding circular plate moves downwards in an annular cylinder; and the phenomenon that the flange plate and the web plate deviate and incline due to the influence of external force during butt welding, and then secondary adjustment is conducted is avoided.

The utility model relates to the technical field of lithium battery packaging, in particular to a positioning device and a cylindrical battery cap packaging machine, the positioning device is used for positioning a cylindrical battery, the positioning device comprises a fixing frame, a rotating seat, a clamping mechanism and a driving mechanism, the rotating seat is rotatably arranged in the fixing frame, and the clamping mechanism is arranged on the rotating seat. The number of the clamping mechanisms is four, the four clamping mechanisms are arranged around the rotating seat, each clamping mechanism comprises a clamping piece, a guide assembly and a connecting rod, the clamping pieces are installed on the guide assemblies, the guide assemblies are in sliding connection with the fixing frame and are close to or far away from the rotating seat along the fixing frame, and the connecting rods are connected with the clamping pieces. One end of the connecting rod is rotationally connected with the guide assembly, the other end of the connecting rod is rotationally connected with the rotating seat, and the driving mechanism drives the rotating seat to rotate. According to the positioning device disclosed by the utility model, the driving mechanism is adopted to control the rotating seat to rotate, so that the guide assembly is pulled to slide along the fixed frame through the connecting rods, and the clamping pieces are driven to be close to the rotating axis of the rotating seat at the same time; and the central positions of different cylindrical batteries can still be ensured to be unchanged, so that the positions of the cylindrical batteries are prevented from being readjusted and pressed, and the purpose of improving the debugging efficiency of the battery cap packaging machine is achieved.

The invention relates to a detector with a locking mechanism, which comprises a circular turntable, a door which is positioned above the turntable and can rotate relative to the turntable, a first motor and a second motor, the turntable is driven by the first motor to rotate so as to drive a plurality of test channels to rotate, the second motor is used for opening the door, and the detector further comprises a locking mechanism, when the door is in an open state, the first motor stops driving the turntable to rotate, and the locking mechanism automatically locks the turntable to prevent the turntable from rotating; when the door is in a closed state, the locking mechanism automatically releases the turntable, and the first motor drives the turntable to rotate. The detector is provided with the locking mechanism, and the turntable of the detector is locked when the door is opened, so that the turntable is effectively prevented from rotating accidentally, the technical problems that a detection card is difficult to insert and normal detection is influenced due to inaccurate positioning of the turntable are solved, and meanwhile, the problem that a detection result is inaccurate due to incorrect insertion can be avoided.

The utility model provides a full-automatic cat litter basin, which comprises a cat litter basin main body, a cat litter bin and a foldable excrement collecting bin, the side surface of the top of the cat litter basin main body is provided with a movably connected rotating support column, the outer side of the cat litter bin is provided with a rotating through hole, and the rotating support column is clamped and connected in the rotating through hole; the excrement collecting bin is detachably connected to the bottom of the cat litter basin body, a driving motor and a control mainboard are further arranged on the cat litter basin body, the control mainboard is in control connection with the driving motor, the driving motor is in driving connection with the rotating supporting column, and a PIR infrared sensor is arranged on the side wall of the cat litter bin and is in feedback connection with the control mainboard. A detachably-connected supporting assembly is further arranged at the bottom of the cat litter basin body. The cat box has the beneficial effects that the safety of cats can be effectively protected, and the transportation volume can be greatly reduced.

The utility model discloses an ultrasonic-assisted cooking device for whole grain food, belongs to the technical field of whole grain food processing, and is used for solving the problems that the whole grain food is poor in eating quality and cooking characteristic, and an existing cooking device is long in cooking time, large in energy consumption, incomplete in gelatinization and the like. The ultrasonic-assisted whole grain food cooking device comprises a cooking device, an ultrasonic system and a control system, the cooking device is provided with a temperature detection device and can monitor and control the cooking temperature in real time, and the ultrasonic system further improves the water absorption efficiency, accelerates medium temperature rise and shortens the cooking time; a control panel of the control system can achieve better operation and monitoring, and in addition, the device has an automatic cleaning function. According to the device, the cooking process of the whole grain food is optimized, and the cooking quality and eating quality of the whole grain food are improved.

The utility model discloses a ton bag holding and conveying device which comprises a moving assembly, and the moving assembly comprises a horizontally-arranged horizontal holding and conveying electric cylinder and a vertically-arranged vertical holding and conveying electric cylinder. A connecting base is installed on the moving assembly, a first swing clamping plate and a second swing clamping plate are hinged to the connecting base, the first swing clamping plate is driven by a first air cylinder, the second swing clamping plate is driven by a second air cylinder, and a plurality of guide columns are installed on the upper surface of the first swing clamping plate and the upper surface of the second swing clamping plate in the length direction of the first swing clamping plate and the second swing clamping plate. The bag opening clamping device can flexibly adapt to the position of a bag opening to clamp the bag opening and convey the bag opening to the next tying process, can prevent the bag opening from toppling over, and facilitates extrusion and tying of the bag opening.

The utility model relates to the technical field of fruit picking, and discloses a multifunctional fruit picking robot which comprises a trolley, hydraulic cylinders, a lifting frame, a swing frame, a machine shell, a clamping mechanism, an angle adjusting mechanism and a storage box, the two hydraulic cylinders are fixed to the trolley, the output ends of the hydraulic cylinders are fixed to the lifting frame, and the swing frame is installed on the lifting frame. A transmission shaft is fixed to the lower end of the swing frame and rotationally connected with the lifting frame, a machine shell is fixed to the top of the swing frame, and a clamping mechanism is installed on the machine shell. The clamping mechanism comprises a first motor, a two-way screw, a first thread, a second thread, a first threaded sleeve, a second threaded sleeve, a limiting rod, a supporting plate, a clamping plate, an anti-skid pad, a spring, a guide rod, a pressure sensor and a limiting sleeve, and an angle adjusting mechanism used for driving the transmission shaft to rotate is installed on the lifting frame. The fruit picker is convenient for picking fruits with different sizes; the picking force is convenient to control, and fruits are prevented from being damaged by clamping.

The utility model discloses an anti-folding catheter fixing device, which relates to the technical field of medical apparatus and instruments, and comprises a fixing patch, and further comprises an arched protective sleeve which is detachably sleeved on a catheter and is used for preventing the catheter from being folded; the silica gel pad is detachably arranged on the fixing patch, the silica gel pad is arranged to be in a concave shape, the silica gel pad is detachably connected to the surface of the protective sleeve in a sleeving mode, and the silica gel pad is used for improving the comfort when a patient presses the protective sleeve. By arranging the protective sleeve and sleeving the protective sleeve on the catheter, the protective sleeve has the advantages that a protective structure sleeves the surface of the catheter, and when the catheter is pressed by the body of a patient, the protective sleeve can bear the pressure of the body, support and protect the catheter and prevent the catheter from being pressed and folded, so that the problem that the catheter is likely to be pressed under the body when the posture of the patient is changed is solved. Therefore, the catheter is easily pressed to be closed, and the problems of unsmooth drainage and blockage of the catheter are solved.

The utility model provides a cigarette case plastic packaging film drying device and belongs to the technical field of drying equipment, the cigarette case plastic packaging film drying device comprises a transmission table and a drying box, the inlet end of the drying box is provided with a dust removal cavity, the dust removal cavity is internally provided with an electrostatic dust removal assembly, the electrostatic dust removal assembly comprises an electrostatic brush and a cleaning roller, and the cleaning roller is arranged on the transmission table. A dust collector is arranged in the cleaning roller, multiple sets of dust collection holes are formed in the surface of the cleaning roller, a collection filter box is arranged at the bottom of the cleaning roller, a transmission belt is arranged on the transmission table, and baffles are arranged on the surface of the transmission belt at equal intervals. A turnover mechanism matched with the baffle plate to turn over the cigarette case is arranged in the drying box; the electrostatic dust collection assembly further comprises two sets of ion fans, and the ion fans are obliquely downwards arranged on the two sides of the top end of the dust collection cavity correspondingly. The cigarette case plastic film drying device can solve the problem that cigarette case plastic films are contaminated by dust, and drying quality is affected.

The utility model discloses a drainage tube double-clamping device, and particularly relates to the technical field of drainage tube double-clamping, which comprises a mounting plate, supports are arranged on two sides of the top of the mounting plate, clamping components for clamping a drainage tube are fixedly arranged on the tops of the two supports, an adjusting component for adjusting the distance between the two supports is arranged on the top of the mounting plate, and a clamping component is arranged on the top of the mounting plate. The two clamping assemblies each comprise a round rod, the two round rods are fixed to the tops of the two supports correspondingly, the outer walls of the two round rods are each provided with two symmetrically-distributed first annular grooves, and annular plates are arranged in the first annular grooves in a sleeved mode. The clamping plates distributed in the front-back direction are buckled together through the two buckling rods, the two clamping plates distributed in the front-back direction firmly clamp and close the drainage tube, so that double clamping and closing of the drainage tube are completed, fluid in the drainage tube can be effectively prevented from flowing, meanwhile, the spring clamp is used for clamping clothes, the situation that the drainage tube is pulled due to the fact that the device is too heavy is avoided, and the drainage tube is not damaged. And the silica gel pads on the surfaces of the splints can prevent the splints from pinching the drainage tube.

The invention relates to the technical field of intelligent control, and provides a mobile gate safety detection control system and method.A photoelectric detection module detects the existence of objects in a gate detection area through conical light beams emitted by a grating sensor and generates a detection signal, and the gate detection area is provided with a plurality of central axes of the conical light beams; the safety of the movable gate in the using process is improved; the gate control module triggers the gate execution movement mechanism to move left and right in the horizontal direction according to the detection signals, the opening and closing state of the gate is controlled, it is ensured that the movable gate can stop in time or move reversely when foreign matter is detected, and accidents are prevented. The control feedback module monitors the execution state of the gate execution movement mechanism and generates a feedback signal, so that the control system is helped to know the current execution state of the gate execution movement mechanism, make corresponding adjustment and continuously optimize the gate control module and the photoelectric detection module; the power management module provides power supply for gate control.

The utility model discloses a terminal for solenoid valve coil assembly and solenoid valve coil assembly, the terminal for solenoid valve coil assembly is used for connecting to the lead of coil, including: main part and be provided the wire clamping part of main part, the wire clamping part is provided with the convex rib and the groove that are arranged opposite to each other, the convex rib and the groove enclose to form the wire clamping groove that is used for clamping the lead. According to the terminal, the protruding rib and the groove which are opposite to each other are arranged on the wire clamping part, the protruding rib and the groove are matched with each other and define the wire clamping groove used for clamping the lead wire, the lead wire can be clamped more easily through the wire clamping groove, the bending and deformation degree of the wire clamping part can be reduced, breakage caused by excessive deformation of the wire clamping part can be avoided, and the service life of the terminal is prolonged. And the lead can enter the groove more easily, that is, the groove has a restraining effect on the lead, the position of the lead can be restrained, the position of the lead is prevented from deviating, meanwhile, extrusion force borne by the lead can be reduced, the lead can be prevented from being pinched off, and then the yield and quality of products are improved.

The utility model relates to a clamping mechanism which comprises an installation plate, a fixed plate and a movable plate. The clamping mechanism is ingenious in design and convenient to use, the movable plate can slide relative to the fixed plate, before an object is clamped, the movable plate is manually moved in the direction away from the fixed plate, the elastic piece deforms along with movement of the sliding block, at the moment, the elastic piece is in a non-free state, and then the product is placed in the clamping space between the fixed plate and the movable plate; when the sliding block is not subjected to external force of manual tension, the elastic piece resets, the sliding block applies acting force which tends to move towards the direction of the fixed plate through the elastic piece to automatically drive the movable plate to approach the fixed plate, and then the purposes of positioning and clamping the product are achieved. The sliding block can be blocked through the stop piece, the situation that the product is damaged due to the fact that the movable plate and the fixed plate are excessively close is prevented, the drive assembly controls the stop piece to drive the sliding block to be away from the fixed plate, the size of the clamping space can be properly adjusted, the acting force applied to the product by the movable plate can be relieved and controlled, and follow-up material pushing and feeding are facilitated.

The utility model discloses a tunnel construction rack structure which comprises a main frame. The two sets of side frames are welded to the two sides of the main frame, each set of side frames comprises at least two side frames, the lengths of the two side frames are different, and through grooves are formed in the ends, away from the direction of the main frame, of the side frames; the protection assembly is composed of a baffle and limiting pieces, the baffle is movably arranged in the through groove, the limiting pieces are located on the upper end face and the lower end face of the two ends of the baffle respectively, and the limiting pieces and the side frames are clamped in a limiting mode; by means of the designed protection assembly, the distance between the side frame and the tunnel can be covered, impurities on the upper-layer side frame are prevented from falling onto the lower-layer side frame, meanwhile, the protection assembly is simple in structure, convenient to machine and manufacture and high in overall practicability, buffering protection can be achieved in the pulling protection assembly, and the service life of the tunnel is prolonged. And the problem that fingers of workers are pinched due to too high pulling speed is avoided.

The invention provides a supporting frame and a tent. The supporting frame comprises a first door frame, a second door frame and a folding assembly. The first portal frame comprises at least two first supporting rods, and the second portal frame comprises at least two second supporting rods; the folding assembly comprises a first telescopic rod and a second telescopic rod; the first telescopic rod and the second telescopic rod are crossed and are coplanar with the first supporting rod; the plane where the first telescopic rod, the second telescopic rod and the first supporting rod are located jointly is a supporting face. The first connecting end of the first supporting rod is rotatably connected with one end of the first telescopic rod, and the second connecting end of the first supporting rod is rotatably connected with one end of the second telescopic rod; the third connecting end of the second supporting rod located on the supporting face is rotationally connected with the other end of the first telescopic rod, and the fourth connecting end of the second supporting rod located on the supporting face is rotationally connected with the other end of the second telescopic rod. The supporting frame is connected with the first door frame and the second door frame through the crossed folding assemblies, and the stability of the supporting frame is improved.

The invention is suitable for the technical field of metal stamping, and provides a passenger car metal plate stamping forming tool which comprises a workbench and a vertical plate fixedly installed on the workbench. The stamping unit comprises an upper die mechanism and a lower die mechanism, the upper die mechanism is arranged on the vertical plate, the lower die mechanism comprises a translation table, a guide rail assembly and a lower die, the translation table is slidably installed on the workbench through the guide rail assembly, a displacement assembly is further arranged on the workbench, and the lower die is arranged on the translation table; according to the punching forming tool, through cooperative arrangement of the upper die mechanism and the lower die mechanism, the problems that when an existing punching forming tool is used, a worker needs to place a to-be-punched part between dies, if operation is wrong, the worker is prone to being clamped and injured, the safety performance is poor, and in the punching process, the work efficiency is high are solved. The to-be-stamped part cannot be subjected to fiber spinning, the deviation phenomenon is prone to occurring, and the forming quality is affected.

The utility model discloses a lighter fuel adding device which comprises a base, a lifting component fixedly connected to the top of the base and a gas tank installed on the surface of the lifting component, a lighter body is arranged at the top of the base, and positioning structures located on the two sides of the lighter body are arranged at the top of the base. The transmission structure extrudes the swing rod, the swing rod swings with the pin shaft in the connecting block as the axis, when the positioning frame at the top end of the swing rod is arranged on the surface of the lighter body in a sleeving mode, the effect of extruding and positioning the lighter body is achieved, the lifting component drives the gas tank to descend, and inflation operation is conducted when the gas tank is communicated with the lighter body. The lighter body is extruded and fixed through the two structures with the fixed moving distance, the phenomenon that the lighter body slightly displaces when affected by vibration can be prevented, the lighter can be connected with the thin gas tank exhaust end in an aligned mode in the gas filling process, and the gas filling effect is guaranteed.

This invention discloses a testing device and method for liquid crystal display modules, relating to the field of liquid crystal display module testing technology. The device includes a base, a flipping bracket, a housing, and a testing platform. The testing platform is equipped with a bidirectional clamping device driven by a first motor for automatically clamping the liquid crystal display module for bending resistance testing, and an auxiliary bending mechanism to ensure uniform force distribution. The housing also houses a click-resistance testing mechanism, including an electric hammer, a pressure sensor, and a displacement sensor, for testing the screen's resistance to click pressure. After testing, debris is automatically removed by a multi-stage cleaning mechanism including a scraper and a spray nozzle. When the testing platform flips, the spray nozzle moves closer to the testing platform to improve the cleaning effect. This invention features a high degree of automation, integrating bending resistance testing and click testing, providing accurate testing and thorough cleaning, effectively improving the efficiency and safety of liquid crystal display module mechanical performance testing.

The application provides a hinge assembly and a clothes processing device. The clothes processing device comprises a door cover and a cabinet. The cabinet is provided with a receiving cavity with an opening at one end. The door cover is rotatably connected to the cabinet through the hinge assembly to open and close the opening. The hinge assembly comprises a hinge seat installed on the cabinet, a hinge blade corresponding to the door cover, and a hinge shaft rotatably connecting the hinge seat and the hinge blade. The hinge blade is provided with a cam, and the hinge seat is provided with a damping sliding groove corresponding to the cam. The cam is slidingly arranged in the damping sliding groove. When the hinge blade rotates relative to the hinge seat, the damping sliding groove generates damping to the cam. The hinge assembly provided by the application buffers the rotation of the door cover through the cooperation of the damping sliding groove and the cam, prevents the door cover from opening too large or even rebounding, and prevents the door cover from closing too fast to pinch the hand when the door cover is closed, thereby improving the user experience.

The utility model relates to the technical field of medical instruments, in particular to a pair of special curved forceps for a haemorrhoids operation. The forceps comprise a first forceps body and a second forceps body, each of the first forceps body and the second forceps body comprises a first bent part, a second bent part, a forceps body and a forceps handle, the first bent parts, the second bent parts, the forceps bodies and the forceps handles are sequentially connected from front to back, the forceps bodies are straight, the first bent parts are bent upwards from back to front relative to the forceps bodies, and the second bent parts are bent upwards from back to front relative to the forceps bodies. The two ends of the second bending part are connected with the first bending part and the forceps body respectively, the second bending part is of an arch structure with the middle protruding upwards, and a receding part which is located between the first bending part and the forceps body and is opened downwards is formed on the lower side of the second bending part; and the plier body of the first plier body is hinged with the plier body of the second plier body through a pin shaft. The bent forceps special for the hemorrhoid operation solve the problem that the anal internal sphincter is prone to being clamped when the forceps clamp internal hemorrhoids in the operation, a doctor can conduct ligation and observation conveniently, and the operation time of the doctor is saved.

The invention relates to the technical field of enameled round wire processing equipment, and discloses an enameled round wire anti-pinch winding reel guiding and limiting structure which comprises a workbench, the top of the workbench is fixedly connected with a deviation rectifying mechanism, and the deviation rectifying mechanism is used for conducting real-time guiding and deviation rectifying on an enameled round wire in the winding process to prevent uneven winding or wire clamping. The top of the workbench is fixedly connected with a supporting frame, the top of the supporting frame is fixedly connected with a limiting mechanism, the limiting mechanism is used for conducting internal tight supporting and fixing and rotary driving on a winding reel and adapts to installation of winding reels of different specifications, and the top of the workbench is fixedly connected with a cutting mechanism. An electric push rod drives a connecting rod to drive a first sliding block to slide in a first fixing frame, then a deviation rectifying roller is driven to do horizontal reciprocating motion, the problem that in the traditional wire winding process, wire accumulation or uneven gaps are likely to occur is solved, the tightness and uniformity of wire arrangement on a winding reel are guaranteed, and the production efficiency is improved. And the overall production quality of the product is improved.

The utility model relates to the field of cutting devices, in particular to a profiling cutting device for fastener production. The profiling cutting device for fastener production solves the technical problems that according to an existing profiling cutting device for fastener production, manual assistance is generally needed for adjusting cutting in the cutting process, operation is troublesome, and the cutting efficiency is low, and compared with a traditional profiling cutting device for fastener production, the profiling cutting device for fastener production has the advantages that the cutting efficiency is high; comprising a first working table, a limiting assembly, a cutting assembly, a punching assembly, a profiling assembly, a machining plate, a first foot column, a second foot column, a first foot base, a second foot base and a second working table, by arranging the limiting assembly, the cutting assembly and the punching assembly, the machining plate can be automatically clamped, cut and punched, and manual operation is not needed; the limiting assembly can guarantee that the machining plate can keep stable in the cutting and punching process, the cutting assembly and the punching assembly can cut and punch the machining plate, and the profiling assembly enables the cutting head to cut fasteners with the shape and size corresponding to those of profiling holes.

The utility model discloses a vertical hinged door structure which comprises a door frame and a door leaf installed on the door frame, the door leaf is provided with a first door handle and a second door handle which can rotate synchronously, the door leaf is provided with a supporting piece, a telescopic rod is arranged in the supporting piece, and the first door handle or the second door handle rotates to drive the telescopic rod to stretch out and draw back. The telescopic rod extends out of the supporting piece to the door frame to limit closing of the door leaf. The main door frame and the door leaf can be clamped through the telescopic rod so as to limit closing of the door leaf, meanwhile, the abutting piece on the door handle drives the telescopic rod to stretch out and draw back, the telescopic rod can be retracted only when a user holds the door handle and rotates the door handle, the door leaf can be normally closed, and therefore the hands are prevented from being pinched.