49results about How to "Avoid tightening" patented technology

Arcuate pivotally movable members and an arcuate slidable member are assembled so that guide pins provided in the arcuate pivotally movable members are inserted into the guide groove formed in the arcuate slidable member. The arcuate pivotally movable members and the arcuate bearing member are assembled by pivotal pins so that the arcuate pivotally movable members can pivotally move around the pivotal pins in directions to enlarge an inner size of the finger ring. The arcuate bearing member has a leaf spring provided therein so that the leaf spring has one end pressed against an inner side of a projection projecting from a first end of one of the arcuate pivotally movable members and located ahead of the pivotal pin in the one arcuate pivotally movable member, and the leaf spring has the other end pressed against an inner side of a projection projecting from a first end of the other arcuate pivotally movable member and located ahead of the pivotal pin in the other arcuate pivotally movable member.

A sucker hoisting device comprises a main bearing frame, a moving bearing beam (19) and a plurality of lifting device assemblies. The main bearing frame at least comprises a first guide rail beam and a second guide rail beam (15 and 16) which extend along a first direction and are spaced and parallel to each other. The moving bearing beam is movably installed on the first guide rail beam and the second guide rail beam and is capable of moving back and forth along the first direction. The plurality of lifting device assemblies are sequentially and movably installed on a guide rail of the moving bearing beam (19), and the lower ends of lifting devices (23) of the lifting device assemblies are respectively provided with an electromagnet sucker (24). Besides, the invention further provides a plate welding conveying system including the sucker hoisting device. The plate welding conveying system including the sucker hoisting device is capable of conveniently hoisting plates, especially long and narrow plates, operation is stable and reliable, and security coefficient is high. Therefore, plates with different lengths can be conveyed conveniently during a plate welding process, and plate welding is convenient and reliable.

The invention relates to the field of wearable equipment, and provides head-mounted equipment, a wearing device thereof and an adjusting method of the head-mounted equipment. The wearing device of thehead-mounted equipment comprises a connecting part, a binding band, an electric driving mechanism and a heart rate sensor, wherein the connecting part is used for connecting an equipment body of thehead-mounted equipment; the binding band is connected to the connecting part for fixing the connecting part to a head of a user; the electric driving mechanism is used for adjusting the tightness of the binding band; the heart rate sensor is arranged on the connecting part or the binding band and is in communication connection with the electric driving mechanism for sensing the heart rate of the user. The wearing convenience of the head-mounted equipment can be improved.

The invention belongs to the technical field of hardware products and particularly relates to a high-strength antitheft type screw fastener. The high-strength antitheft type screw fastener comprises afirst bolt and a second bolt. The first bolt is integrally arranged and comprises a nut and a first stud. A T-shaped through groove is formed in the first bolt, and the diameter of the outer circle of the first bolt is equal to that of the outer circle of the second bolt. The second bolt comprises a connecting rod, a second stud, an elastic piece and a pressing block. The elastic piece is connected to the top end of the connecting rod. The second stud is fixedly connected to the bottom end of the connecting rod. A clamping groove is formed in the upper surface of the second stud. A set of arcgrooves are formed in the circumferential direction of the bottom of the pressing block, and a set of clamping claws are arranged in the circumferential direction of the bottom end of the first stud.A blocking unit is arranged on one side of each clamping claw in a clockwise direction. The high-strength antitheft type screw fastener is simple in structure and convenient to operate, the purpose that the high-strength antitheft type screw fastener cannot be taken out by adopting a conventional tool once being screwed is achieved, and the antitheft effect of a screw is improved.

The present application discloses a filtration device for pulp, the filtration device for the pulp comprises a cylindrical filter cartridge which is disposed upright. A first filter net and a second filter net are obliquely arranged in the cylindrical filter cartridge, and the second filter net is located below the first filter net. The first filter net and the second filter net both include a high end and a low end, the low end of the first filter net is provided with a detachable first filter bag, the detachable first filter bag is matched with the first filter net in mesh diameter, the lowend of the second filter net is provided with a detachable second filter bag, and the detachable second filter bag is matched with the second filter net in the mesh diameter. A first sealing door anda second sealing door are arranged on the side wall of the cylindrical filter cartridge, a water pipe is also arranged on the top of the cylindrical filter cartridge, and one end of the water pipe penetrates through the first filter net and extends to above the second filter net. The water pipe is provided with rotating nozzles which are respectively located above the first filter net and betweenthe first filter net and the second filter net. Impurities are accumulated in the filter bags under the flushing of the rotary nozzles, the sealing doors are opened, and the filter bags are taken down, and the impurities are removed.

A rain tight connector may include a connector body, a gland nut coupled to the connector body, and a compression ring. A locknut is coupled to the connector body on the end portion thereof opposite to the gland nut. The compression ring includes a central portion and first and second coaxial end portions. The central portion defines an annular stop. A locking unit with a plurality of locking teeth is provided in the present invention to further secure the metal tube. More specifically, the locking unit can be inserted into the compressing ring to strengthen its structure to securely hole the metal tube

The invention discloses an automatic packaging mechanism for English teaching material preparation. The automatic packaging mechanism comprises a main conveying belt, a pressing assembly, a portal frame and a packaging assembly, and is characterized in that the annular portal frame is fixed on the main conveying belt, the packaging assembly is arranged in the portal frame, through an annular portal frame gap in the inner wall of the portal frame, the packaging assembly can be used for wrapping articles at the gap with packaging paper; and the pressing assembly is fixed to the portal frame in the direction opposite to the moving direction of the main conveying belt and can adjust the vertical position. Compared with the prior art, the automatic packaging mechanism is compact in packaging, high in efficiency and stable in operation.

The invention discloses a stay wire measuring tool and application thereof, belongs to the technical field of body measuring devices, and aims to provide a measuring device which is simple in structure, convenient to store, wide in application and accurate in data. The stay wire measuring tool comprises a stay wire box body; a winding mechanism which comprises a rolling wheel, a coil spring and anon-elastic stay wire , wherein the rolling wheel is rotatably arranged in the stay wire box body, the stay wire is wound on the rolling wheel, the free end of the stay wire penetrates out of the staywire box body, and the coil spring is in linkage connection with the rolling wheel; a magnetic ring; and the data acquisition module which is positioned in the stay wire box body, is arranged at themagnetic ring and is used for acquiring a magnetic pole change signal of the side vertical surface of the outer diameter of the magnetic ring. The stay wire measuring tool is applied to clothes, and is used for measuring the length or dimension of different parts of clothes worn on human body.

The invention provides a multifunctional pad for pregnant women. The pad comprises a pad body for the pregnant women, fabric of the pad for the pregnant women, a safety belt placement channel, a silicone pad, a massage airbag, elastic rubber bands, buttons and button holes, and is characterized in that a nano-silver ion vacuum high-energy beam electroplating silver fiber treatment technology is adopted for the fabric of the pad for the pregnant women, the silicone pad is sleeved with the front portion of the pad body for the pregnant women, the safety belt placement channel is engraved in thesilicone pad at the front portion of the pad body for the pregnant women, the massage airbag is placed at the rear portion of the pad body for the pregnant women, the elastic rubber bands are connected to the two sides of the front portion of the pad body for the pregnant women, the buttons are arranged on both sides of the rear portion of the pad body for the pregnant women, the tail ends of theelastic rubber bands are provided with the button holes, the front portion of the pad body for the pregnant women is in buckled connection with the rear portion of the pad body for the pregnant womenthrough the elastic rubber bands and the buttons, and the elastic rubber bands can be pulled out through elastic rubber band inlet and outlet. By means of the multifunctional pad for the pregnant women, on the one hand, the discomfort caused by safety belts when the pregnant women wear the safety belts is conveniently avoided; on the other hand, the pad helps the pregnant women to avoid radiationdamage; the multifunctional pad for the pregnant women has the advantage of being human friendly.

The invention discloses a knee cap special for the movement of a child. The knee cap comprises an upper protection plate, a middle protection plate and a lower protection plate, wherein the upper protection plate and the lower protection plate comprises wide ends and narrow ends; the middle protection plate comprises an upper connection end and a lower connection end; the wide end of the upper protection plate is rotationally connected with the upper connection end; the wide end of the lower protection plate is rotationally connected with the lower connection end; a pair of connection ropes are connected with the narrow end of each of the upper protection plate and the lower protection plate; a clamping head is connected with the connection rope on one side of each narrow end, while a clamping base is connected with the connection rope on the other side; each clamping head is clamped and matched with the corresponding clamping base; an inside strip group is arranged on the inner surface of each of the upper protection plate and the lower protection plate; and a plurality of vent holes are formed in the upper protection plate and the lower protection plate. The knee cap is the protective knee cap for the movement of the child, which is simple in structure, comfortable to wear, good in air permeability and long in service life.

The invention relates to a hydraulic loading-limit mechanical variable speed winch, and belongs to the field of hoisting equipment. The hydraulic loading-limit mechanical variable speed winch comprises a hydraulic control system, a quick-connecting high pressure oil pipe and a drawing head device. The drawing head device and the hydraulic control system are connected through the quick-connecting high pressure oil pipe. The drawing head device comprises a base, a steel wire rope guide device, a winching cylinder support frame, a hydraulic motor, a motor protecting frame, a variable speed transfer case, a winching cylinder, a locking device, a speed reducing mechanism and a gear change hand lever. The steel wire rope guide device is installed on the base. The hydraulic motor is fixed to the variable speed transfer case. The motor protecting frame is arranged outside the hydraulic motor. The variable speed transfer case is fixed to the base and connected with the speed reducing mechanism, and the gear change hand lever is arranged on the variable speed transfer case. The speed reducing mechanism is installed inside the winching cylinder, and the cantilever end of the winching cylinder is supported by the winching cylinder support frame. The winching cylinder support frame is locked through the locking device and fixed to the base. The hydraulic loading-limit mechanical variable speed winch is reasonable in structure, convenient to operate, low in cost, safe and reliable.

The invention relates to a multifunctional tree transplantation support device, which comprises a support rod, a coaming and a hoop. The multifunctional tree transplantation support device is characterized in that a notch is formed in the upper part of the support rod and can be spliced to the hoop; a coaming fixing part is arranged in the middle of the support rod and is used for fixing the coaming and an inclined support hole is formed in the lower part of the support rod, so that the stability of the support rod can be improved. A glass product with stiffness and transparency is adopted by the coaming, so that the device is more beautiful; and an inner and outer design is adopted by the hoop, so that casual adjustment can be carried out according to the growth requirements of trees to meet the growth requirements of the trees. The multifunctional tree transplantation support device is simple in structure and good in support effect, and has a significant beneficial effect on cold protection and heat preservation of trunks while the support effect can be obtained through the design of the coaming.

The invention provides an edible oil containing device capable of achieving quantitative pouring, and relates to the technical field of edible oil. The edible oil containing device capable of achieving quantitative pouring comprises a bottle body, the top of the bottle body is in threaded connection with a bottle cap, a handle is fixedly installed at the right end of the bottle body, a button is rotatably connected to the top end of the handle, a first spring is fixedly connected to the bottom end of the button, a traction rope is fixedly connected to the bottom end of the left side of the button, and a guide roller is rotatably connected to the bottom of the right side of the bottle body. Repeated unscrewing and screwing of the bottle cap are avoided; the edible oil containing device canbe operated with one hand, is more convenient and quicker, can enable quantitative edible oil to flow into a transition cavity and then be directly poured, achieves quantitative pouring of the edibleoil, is simple in operation, does not need other tools, saves time and labor, prevents cast edible oil from staining the bottle body, and guarantees the cleanliness of the bottle body.

The invention relates to the technical field of explosion-proof indicating lamps, and discloses an anti-loosening and anti-explosion indicating lamp based on coal mine industry, which comprises a wall body, a base is arranged at the top of the wall body, a long nail is fixedly connected to the bottom of the base, and a bearing gear is slidably connected to one side, away from an extrusion toothed plate, of a bearing plate. The surface of an inner wheel of the bearing gear is in meshed connection with a vertical toothed bar, the bottom of the vertical toothed bar is fixedly connected with a vibration block, the bottom of the bearing shaft is fixedly connected with a transition block, a screw rod is arranged at the bottom of the transition block in a penetrating mode, and the side face of the screw rod is fixedly connected with a bent rod. A limiting plate is fixedly connected to the position, located in the transition block, above the bent rod. According to the anti-loosening and anti-explosion indicating lamp based on the coal mine industry, through cooperative use of the vibration block and the bearing gear, the effect of preventing the indicating lamp from loosening from a coal mine wall body in the using process of the indicating lamp is achieved.

The invention relates to a vehicle, in particular an agricultural vehicle, comprising a vehicle front part (2) and a vehicle rear part (3), between which a working space (12) for at least one self - propelled user (13) is formed, at least one of the vehicle parts (2, 3 ) has a drive device (17) for driving the vehicle (1). According to the invention, at least one of the vehicle parts (2, 3) has a sensor device (18) which faces the working space (12) and is designed to generate a distance (A, B) of the vehicle part (2, 3) (20), which actuates the drive device (17) as a function of the detected distance (A, B).

The invention belongs to the technical field of fire fighting, and particularly relates to an indoor fire extinguishing box. The indoor fire extinguishing box comprises a long-strip-shaped mounting groove reserved in the surface of a wall body; an outer pipe is fixedly connected in the mounting groove; both a water pipe and a joint are positioned in the outer pipe; the end, away from the joint, ofthe outer pipe is designed to be bent towards the outer side of the wall body; a first opening is formed in the upper surface of the outer pipe; a first conveying belt is connected to the position, above the water pipe, in the outer pipe in a rotating mode; an opening of the end, outside the wall body, of the outer pipe is designed to be bent outwards; a rubber layer is fixedly connected to the bent position; a second opening which is formed symmetric with the first opening is formed in the lower surface of the outer pipe; a second conveying belt is arranged at the position, below the water pipe, in the outer pipe; and a second gear which is connected to the surface of the mounting groove in a rotating mode is arranged below the outer pipe. The indoor fire extinguishing box has the advantages that the long water pipe can be stored in a small space, in addition, the joint does not need to be arranged before a fire is extinguished, the service life of the water pipe is long, the lengthof the water pipe can be controlled, the fire extinguishing efficiency is high, and the operation is simple and convenient.

The invention relates to the technical field of safety belts, in particular to a safety belt retractor and a safety belt assembly.The safety belt retractor comprises a shell, a winding roller, a winding assembly, a safety belt and a fixing assembly, the fixing assembly comprises a clamping shell, a rotating shaft, a fixing plate and conical teeth, and a human body on a seat is limited and protected by pulling the safety belt; after the safety belt is continuously pulled to move out by a certain distance, the clamping shell slides, the left end of the clamping shell makes contact with the right end of the shell, then the fixing plate is pushed to move, the conical teeth are made to be close to the safety belt, and finally the conical teeth are inserted into the safety belt, so that the clamping shell is fixed to the outer side of the safety belt, and the safety belt is loosened; at the moment, due to the fact that the tightening spring deforms to drive the winding roller to wind the safety belt, the clamping shell abuts against the outer shell, the mode that the safety belt is limited through a contracting fastener is replaced, the safety belt can be moved out without continuously pressing a locking fastener, force applied to the hand is reduced, and discomfort such as aching pain of the hand is avoided.