32results about How to "Avoid self-closing" patented technology

The invention discloses a winding reel for a textile machine and convenient to replace. The winding reel comprises a base. The top of the base is fixedly connected with a clamping device. The clampingdevice is connected with bearings in a clamped manner. A winding drum is fixedly connected to the inner ring of the bearing. Handles are fixedly connected to the two ends of the winding drum. The twosides of the winding drum are fixedly connected with baffles, and the baffles are located between the bearings. The clamping device comprises a box body. The bottom face of the inner wall of the boxbody is fixedly connected with first springs. The top of the first spring is fixedly connected with a U-shaped clamp plate. The middle of the U-shaped clamp plate is fixedly connected with a transmission rod. The winding reel for the textile machine is convenient to operate and can be rapidly and flexibly mounted and replaced, and the operation time can be reduced; the winding drum rotates smoothly, and clamping and line breaking can be avoided; the winding drum can be clamped firmly and is prevented from falling off, the position of the winding drum can be limited, and the winding drum is prevented from moving; and therefore wide application prospects are achieved.

The invention provides a method and a system for ensuring advertisement playing duration. The method comprises the steps of encrypting a video file, binding the video file with an advertisement file, and setting the playing of the advertisement file to be a necessary and sufficient condition for decoding the video file. On one hand, the user has to play a full advertisement to realize decoding of the video file if the user wants to watch a video, thereby preventing the user from closing the advertisement by oneself and ensuring the advertisement playing times and duration; on the other hand, the playing of the advertisement is bound to drive the decoding of the video file, thereby avoiding the deception of playing the advertisement in an unlimited manner, and ensuring the video watching right and use experience of the user. Through the design, the method and the system provided by the invention ensure the advertisement playing duration without damaging the interests of the user, so that the interests of the advertiser, the video website manager and the user can be guaranteed.

The invention discloses an intelligent hydraulic wellhead sealer, which comprises a polish rod, wherein the middle of the polish rod is sleeved with a paraffin removal valve; the polish rod is provided with a plurality of sealing rings; and the sealing rings are sleeved on the polish rod. The intelligent hydraulic wellhead sealer is simple in structure, convenient to assemble and disassemble, good in sealing property and long in service cycle; eccentric wear of the polish rod can be prevented, an oil passage can be automatically sealed when the polish rod is broken to realize a function of preventing blowout; the working performance is high, the environmental pollution to a working site is reduced, the cost is reduced, and the product is economical, intelligent, practical and environment-friendly; the rear end of the polish rod is sleeved with an air isolating tube, and when the polish rod works to a lower dead center, underground waste gas is timely discharged out of an inner cavity of the intelligent hydraulic wellhead sealer, and the inner cavity of the intelligent hydraulic wellhead sealer releases pressure to reduce the friction between the polish rod and the sealing rings, so that the service life of each sealing ring is more than one year, related parts are not required to be replaced, the cost is saved by 80 percent, an operating area is pollution-free, the environment reaches the standard, electricity is saved by 7-8KW / H daily compared with that of a single well, and the intelligent hydraulic wellhead sealer is convenient to promote and use.

The invention relates to the technical field of ships, and discloses a ship and a sea chest grating thereof. The sea chest grating comprises a grating base and a grating rotationally assembled in thegrating base, the grating seat is provided with a first limiting structure for limiting the downward rotation of the grating at the left side of the rotating shaft and is provided with a second limiting structure for limiting the upward rotation of the grating at the right side of the rotating shaft, the grating is provided with a balance weight at the left side of the rotating shaft, and the rotating shaft is provided with a torsional spring for applying the upward acting force to the grating at the right side of the rotating shaft when the grating rotates. According to the present invention,the balance weight is arranged on the grating, and after the sea chest grating is opened, a sea chest cannot be automatically closed due to the existence of the counter weight. When the sea chest grating is closed, the torsional spring can be used for applying the upward acting force to the sea chest grating, and the assistance is provided for closing the sea chest grating. According to the present invention, the self-closing of the opened sea chest grating can be prevented, and an operator can be helped to close the opened sea chest grating.

The invention discloses an eyecup by which eyes can be washed and soaked conveniently and safely. The eyecup is an oblate container which is prepared from soft raw materials, and composed of a water sealing ring, an elastic expanding ring and a cup body, wherein the profile of the water sealing ring is covered around the eyes above the nose on the face, and the water sealing ring is fixed on the upper edge of the cup body by the elastic expanding ring. When using the eyecup to wash the eyes, because the water sealing ring is closely adhered around the eyes, the water in the cup body does not overflow, and the elastic expanding ring has enough elasticity to adjust the distance between the eyes and the water surface in the cup body, so that the eyes can touch and leave the water surface freely, and open in the water to soak or wash. In case of putting water at different temperatures or adding medicaments into the eyecup, the obtained product can alleviate eyestrain, or cooperate to treat eye diseases. The invention is simple in construction, safe and healthy, and particularly suitable for the cleaning and health care of eyes of personal.

A low-voltage combined type marine electric device comprises a base. Three cabinets of identical structures are installed on the base and connected through fasteners. Each cabinet structurally comprises frames, each rectangular framework is formed by welding the two corresponding frames, two crossarms and two stand columns, side cross beams arranged at intervals are installed on the inner sides of the frames on the two sides, a vertical beam is installed on middle portions of the side cross beams of each cabinet and perpendicular to the side cross beams of each cabinet, and the two vertical beams of each cabinet are connected through a connecting beam; side closure plates are installed on the outer sides of the frames on the two sides, and each side closure plate is provided with installation holes; a front door plate is installed on each frame located at the front end, and each front door plate is provided with a front armrest and a front door locking device; a rear door plate is installed on each frame located at the rear end, and each rear door plate is provided with a rear armrest; a top cover plate is installed at the tops of the three cabinets through first bolts, and right-angle-shaped hoisting plates are installed on the top cover plate through fasteners in a spaced mode. The low-voltage combined type marine electric device is high in strength, attractive in appearance, high in protection level and universality and convenient to assemble and disassemble.

The invention discloses a warping plate-type explosionproof lighting switch. The warping plate-type explosionproof lighting switch comprises an explosionproof junction box lower shell, an introductiondevice and a screening mechanism, wherein an explosionproof junction box shell is fixedly connected with an upper surface of the explosionproof junction box lower shell, cable introduction holes arefixedly connected with two ends and a front surface of the explosionproof junction box lower shell, a switch cover is fixedly connected with an upper surface of the explosionproof junction box shell,a rocker switch is rotatably connected with the explosionproof junction box shell, a protection cover is fixedly connected with an upper surface of the switch cover, and a fixed plate is arranged on an upper surface of the protection cover. By design of the introduction device, cable introduction is flexible and variable, the introduction of one to four cables is achieved at any time, and finally,the device is convenient to install; by design of the protection cover and an explosionproof shaft, the problem of operation and safety of the device is ensured; and by the two types of design, the whole device is convenient to operate and install, and the application performance of the device is greatly improved.

According to the technical scheme provided by the invention, a locked-rotor, overload, phase-loss and free-burning motor of a high-efficiency and energy-saving water pump is provided. The motor comprises a three-phase winding. The motor is characterized in that at least two phases of the three-phase winding are respectively provided with a protector. The protector comprises a movable contact pieceand a static contact piece. The movable contact piece is in contact with the static contact piece when the temperature of the movable contact piece is lower than a preset temperature. The movable contact piece is separated from the static contact piece when the temperature of the movable contact piece is higher than the preset temperature. A movable contact piece binding post is arranged at the tail part of the movable contact piece. A static contact piece binding post is arranged at the tail part of the static contact piece. A heating resistor is connected below the static contact piece in parallel. The heating resistor is insulated and isolated from the static contact piece. The two ends of the heating resistor are connected to the static contact piece binding post and the movable contact piece binding post respectively. The damage phenomenon of the motor is effectively avoided. The protector is low in price and economical in cost.

The invention discloses a double-opening door and window lock structure, and belongs to the technical field of doors and windows. The double-opening door and window lock structure comprises a frame body, a glass body, an upper support plate and a lower support plate, wherein the glass body is embedded in the central position of the frame body, the upper support plate and the lower support plate are arranged on the upper and lower ends of the frame body, a spherical block is fixed to the left side of the top of the frame body, a fixed block which is matched with the spherical block is fixed to the bottom of the fixed block in the position of the spherical block, and a conical clamping block is connected to the interior of a built-in groove in a sliding mode through a reset spring III. According to the double-opening door and window lock structure, in the process of rotating a cam clockwise and anticlockwise under the condition that the frame body is closed, the frame body can be opened and closed up and down after the frame body is pushed when the cam is rotated clockwise, and the frame body can be opened and closed left and right after the frame body is pushed when the cam is rotated anticlockwise, so that the opening and closing modes of a window can be freely selected according to preferences of a user, additionally, indoor ventilation can be kept in rainy days, and the use is convenient.

The invention provides a dustproof automobile skylight facilitating ventilation and relates to the field of automobiles. The dustproof automobile skylight comprises an automobile body and is characterized in that a front automobile window, a rear automobile window and an automobile roof are arranged at the top of the automobile body, and the automobile roof is located between and fixedly connected with the front automobile window and the rear automobile window. The dustproof automobile skylight has the advantages that a skylight cover can be opened to achieve a ventilation effect by a first rotary shaft fixing block and a first rotary shaft, light transmittance and ventilation can be achieved after the skylight cover is opened by the aid of transparent glass and a slide groove, multifunctionality is achieved, dust can be prevented from entering the automobile body during ventilation by the aid of dustproof blocking cloth, the switch of the skylight cover needs to be controlled actively by the antiskid layers on the surfaces of a second rotary shaft, a third rotary shaft and a fourth rotary shaft, the skylight cover is prevented from closing automatically due to gravity during automobile traveling, and the movement of the transparent glass can be controlled freely by a pushing block.

The invention relates to the technical field of gas stoves, in particular to a gas stove and a control method thereof. The gas stove comprises a thermocouple, a pulse, an ignition needle, a gas pipeline, and a first valve body and a second valve body connected with the gas pipeline; the second valve body is serially connected with the thermocouple and a delay, and is controlled to open by a switchstructure independent from the first valve body; and under the condition of conducting the gas pipeline, the second valve body is acted by thermoelectromotive force generated by the thermocouple within time set by the delay to maintain conduction of the gas pipeline. The control method comprises common control of the first valve body and the second valve body and maintenance of the conduction ofthe gas pipeline under the continuous thermoelectromotive force effect generated by the thermocouple within time set by the delay. The gas stove is convenient to operate, safe in use and suitable forpopularization.

The invention discloses a flip oven. The flip oven comprises a lower cover and an upper cover, wherein the upper cover is connected with the lower cover by a hinge; an upper connecting part and a lower connecting part are respectively arranged on a side surface of the upper cover and a side surface of the lower cover; the upper connecting part is connected to the middle of an air cylinder; the lower connecting part is connected to a piston rod of the air cylinder; a connecting plate is arranged at an end of the air cylinder; a safety rod is movably arranged on the lower connecting part; a safety pin is arranged at an end of the safety rod; and the upper end of the safety rod penetrates through the connecting plate. The circumstance that the upper cover and the lower cover are closed automatically due to failure of the air cylinder or other accidents can be avoided, the service life of the flip oven is prolonged, and safety production is guaranteed.

The invention discloses a multimedia platform for college Chinese teaching, and belongs to the technical field of teaching equipment. A multimedia platform for college Chinese teaching comprises a multimedia platform body, a control panel and a page turning device, the control panel and the page turning device are both arranged at the top of the multimedia platform body, the control panel is located on one side of the page turning device and electrically connected with the multimedia platform body, and the page turning device is electrically connected with the control panel. One-key page turning is carried out on the teaching book through the page turning device, one hand of a teacher is liberated, and the teaching efficiency can be improved.

The invention discloses a breakdown voltage testing device for a lithium ion battery diaphragm, which comprises a base, a test box is arranged at the upper end of the base, a protective cover is connected to the test box, a first connector lug is arranged in the test box, a second connector lug is arranged in the test box, and an adsorption plate is fixedly arranged on the protective cover. The invention relates to a breakdown voltage testing device for a lithium ion battery diaphragm, which belongs to the technical field of voltage breakdown tests, and is characterized in that the whole structure can be detached to carry out breakdown tests on other materials such as solutions when necessary through the arranged mounting structure, and the clamping frame is used for mounting and fixing work; the mounting and dismounting work of the whole mounting structure is facilitated, the height of the metal plates can be adjusted through an adjusting frame, a connecting rod is arranged between the supporting bottom plate and the supporting top plate, it is guaranteed that the metal plates can synchronously ascend and descend, a magnet is used in cooperation with an adsorption plate, and a stable effect can be provided after a protective cover is opened.

A liquid discharging device comprises a body provided with a liquid inlet and a liquid outlet. A liquid flow channel connected between that liquid inlet port and the liquid outlet port is arranged inthe body. The body is provided with a first control device that opens the liquid inlet port after the liquid pressure exceeds the preset pressure on the liquid inlet, or the body is provided with thefirst control device that opens the liquid outlet automatically when the liquid pressure in the liquid flow channel exceeding the preset pressure and / or the liquid volume exceeds the preset volume and / or the liquid level exceeds the preset height. Or the liquid flow channel is divided into an upper liquid flow chamber and a lower liquid flow chamber by a interceptor provided with a intercepting port in the middle of the liquid flow channel, and the liquid inlet port communicates with the liquid outlet through the intercepting port. The body is provided with a first control device that opens the intercepting port by itself after the liquid pressure in the upper liquid flow chamber exceeds the preset pressure and / or the liquid volume exceeds the preset volume and / or the liquid level exceedsthe preset height. The device prevents liquid from being unreasonably discharged by means of a first control device that switches the liquid flow path and a second control device that assists in switching the liquid outlet and shut-off ports. The invention is used in medical devices, articles and the industrial field.

The invention relates to an electric rice cooker and a cooker cover hand clamping preventing device thereof. The electric rice cooker comprises a supporting body arranged in a cooker body, and an inner cover arranged in a cooker cover, wherein the inner cover is buckled on the supporting body; the inner cover is rotationally connected with the supporting body through a hinge axis; an elastic device is arranged on one of the supporting body and the inner cover, and a positioning groove allowing the elastic device to extend into is formed in the other; when the cooker cover is in a full open position, the elastic device extends into the positioning groove; when the cooker cover is in a non full open position, the elastic device is separated from the positioning groove and is in a compressed state, so that when the cooker cover is in an open state, the cooker cover hand clamping preventing device of the electric rice cooker can avoid the problem of closing of the cooker cover caused by false touch.

A suction valve of a high-pressure fuel pump for a vehicle includes a housing having an inlet through which a fuel is introduced and a pump chamber configured to press the fuel, a valve installation space arranged between the inlet and the pump chamber, and a solenoid part provided with a rod for performing a linear reciprocal motion, and further includes a valve sleeve inserted into the valve installation space and formed with a flow hole, a valve spring seated on the valve sleeve, a valve plate elastically supported by the valve spring, and moving in conjunction with the rod, and a valve sheet formed with an introduction hole opened and closed by the valve plate, in which the valve sleeve is slid and inserted into the valve installation space, and the valve sheet is fitted into and fastened to the valve installation space to support the valve sleeve.

The invention relates to a tool box for electric power system maintenance. Grooves are formed in the two sides of a middle connecting box, tool containing plates are rotationally arranged in the grooves, a first side box and a second side box are located on the two sides of the middle connecting box correspondingly, wiring holes and a universal meter storage groove are formed in the inner surface of the first side box, and a lithium battery is arranged in the first side box. An electric screwdriver storage groove is formed in the inner surface of the second side box, and a second supporting block is arranged at the lower end of the second side box. A first supporting block is arranged at the lower end of the first side box, a clamping groove a is formed in the lower surface of the first supporting block, a clamping block a is connected into the clamping groove a in a sliding mode, one end of the clamping block a is connected with the groove bottom surface of the clamping groove a through a reset spring a, a rotating shaft is rotationally arranged at the other end of the clamping block a, and a screw rod is connected to the outer end of the rotating shaft through a rotating block. A clamping groove b is formed in the lower surface of the second supporting block, a clamping block b is connected into the clamping groove b in a sliding mode, one end of the clamping block b is connected with the bottom face of the clamping groove b through a reset spring b, and the other end of the clamping block b is connected with a threaded sleeve. The tool box has the advantages of being stable in structure and capable of facilitating classified storage of tools.

The invention discloses a flip type drying oven. The flip type drying oven comprises a lower cover and an upper cover. The upper cover and the lower cover are connected through a hinge. An upper connecting part and a lower connecting part are arranged on one side face of the upper cover and one side face of the lower cover correspondingly. The upper connecting part is connected with the middle of an air cylinder. The lower connecting part is connected with a piston rod of the air cylinder. A connecting plate is arranged at the end of the air cylinder. A safety rod is movably arranged on the lower connecting part. A safety pin is arranged at the end of the safety rod. The upper end of the safety rod penetrates through the connecting plate. The phenomenon that the upper cover and the lower cover of the drying oven are automatically closed due to failures of the air cylinder or other accidental conditions can be avoided, the service life of the drying oven is prolonged, and safe production is ensured.