33results about How to "Offset weight" patented technology

The invention discloses an automatic stereoscopic storage device. The automatic stereoscopic storage device comprises a stereoscopic storage rack. A plurality of sets of trolley brackets are fixedly arranged in the stereoscopic storage rack in an array mode and are spaced from one another in the longitudinal direction. Each trolley bracket can carry one trolley. A trolley lifting unit which can move up and down is arranged on the front side of the stereoscopic storage rack and can move to be sequentially aligned with the trolley brackets in the height direction. The trolley lifting unit can carry one trolley. The automatic stereoscopic storage device is simple in structure; and the stability of up-down movement of a lifting cantilever is ensured through an integral structure formed by a front sliding block, a rear sliding block and lateral sliding blocks. A chain balance weight is arranged in a hollow guide stand column and is guided and limited by the inner wall of the guide stand column so that the chain balance weight can only move in the extension direction of the guide stand column without being distributed by outside factors, and the stability of the automatic stereoscopic storage device is improved.

The invention discloses a synchronous lifting device and a material conveying device. A driving mechanism is adopted for being matched with a linkage mechanism for acting, a lifting material frame is synchronously lifted wholly along with the driving mechanism when the driving mechanism runs, under the condition that the cost is reduced, synchronous running stability and reliability are guaranteed, and the motion program is simple; and in addition, the mechanism accuracy has a certain fault tolerance, and the service life of elements is greatly prolonged. A balance weight mechanism is arranged, upward pull force is applied to the lifting material frame when materials are lifted, the weight of the lifting material frame can be offset, the load of the driving mechanism is reduced, and energy consumption is reduced.

Presented are hybrid metal and fiber-reinforced polymer (FRP) composite wheels for vehicle wheel assemblies, methods for making / using such wheels, and motor vehicles equipped with such wheels. A wheel for a motor vehicle wheel assembly includes a wheel face with multiple spokes that are circumferentially spaced about and project radially outward from a central hub. The central hub rotatably attaches to the vehicle's body, e.g., via a corner module. The wheel face is fabricated, e.g., as a one-piece structure, from an FRP material. A wheel barrel, which circumscribes the wheel face, includes an annular rim that mounts thereon an inflatable tire. The wheel barrel is fabricated, e.g., as a one-piece structure, from a metallic material. Multiple overmold through holes and / or inset tabs are circumferentially spaced about the annular rim. The FRP material extends through and / or surrounds the overmold through holes / inset tabs and thereby mounts the wheel face to the wheel barrel.

An accessory for attachment to a wheeled vehicle such as a bicycle includes a body portion and a mounting portion. The mounting portion has a V-shaped groove for receiving a wide range of shapes and sizes of frame tubing, wheel hubs, and the like. The groove has first and second portions separated by a notch to engage curved tubing with at least two contacts. A pair of cable ties secures the accessory to the tubing or the hub. A plurality of interchangeable mounting portions can be provided for mounting the accessory to the bicycle in different orientations. When a light is secured to a wheel, the accessory can be a battery holder secured to the hub on an opposite side of the hub from the light to offset weight of the light. The wheel can be balanced with proper radial positioning of the light and the battery holder.

The invention discloses a double-roller linkage winding type lifting system. The double-roller linkage winding type lifting system comprises a first lifting roller and a second lifting roller, and thefirst lifting roller and the second lifting roller are in engaged linkage through an engagement structure on the outer circumference or are in linkage through linkage middleware; the first lifting roller is wound with a first lifting rope, the second lifting roller is wound with a second lifting rope, and the first lifting rope and the second lifting rope are not connected with each other. The double-roller linkage winding type lifting system can increase the energy efficiency ratio of an extradeep well lifting system.

The invention discloses a machine tool ram balance device. The machine tool ram balance device comprises a ram, and further comprises a fixed beam; the ram is slidingly connected to connecting plates;a motor is mounted at the top of the ram; an output end of the motor is rotationally connected with a lead screw; a lead screw base is fixed between the connecting plates; a nut is fixed on the leadscrew base; the lead screw extends into the nut, and is screwed with the nut; a nitrogen balance cylinder is mounted on the lead screw base; and a free end of a piston rod of the balance cylinder is fixedly connected with the ram. The machine tool ram balance device has the following advantages: the balance cylinder is fixed on the same sides of a driving motor and the lead screw; when the ram moves down, the piston rod is driven to move down to counteract the weight of the ram; meanwhile, the balance cylinder is provided; and the straight torque is formed between a balance oil cylinder and the driving motor, so that the linearity change in the ram descending process is low, and the machining precision is effectively improved.

The invention discloses a refrigerator shelf and a refrigerator applying the same, and relates to the technical field of refrigerators. The shelf comprises two supports installed in parallel and a shelf body, wherein the cross section of each support is of an n-shaped structure, a plurality of square holes are evenly distributed in a corresponding protruding face of each support, corresponding sliding grooves are formed in the two adjacent side faces of each protruding face in a penetrating mode, each protruding face and the two corresponding side faces form a corresponding sliding way, the two opposite ends of each sliding way are closed, screw rods and polished rods are mounted in the sliding ways in parallel correspondingly, supporting flanges are arranged on the two opposite sides of the shelf body correspondingly, limiting blocks and protruding blocks are arranged on the end faces of the supporting flanges correspondingly, the protruding blocks are inwards and rotationally provided with sliding blocks correspondingly, through holes are formed in the sliding blocks correspondingly, the shelf body is mounted on the two supports in a sliding manner, the polished rods are sleevedwith elastic elements, push blocks are installed on the screw rods in a matched mode, two corresponding supporting rods are symmetrically arranged on one side edge of each push block, and the two corresponding supporting rods of each push block can push the corresponding sliding block to move upwards. According to the shelf, the screw rods, a motor, a transmission mechanism, the polished rods, thesliding blocks and the elastic elements form a sliding assembly, and the problem that an existing refrigerator shelf is inconvenient to move up and down is solved.

The invention provides a visual art work display device and relates to the technical field of work display. The visual art work display device comprises a base; a mounting plate connected with the base through a bracket mechanism; a suction cup mechanism and a mounting plate; wherein the suction cup mechanism has a supporting range adjusting function, and the suction cup mechanism with the supporting range adjusting function is connected with a mounting plate. The visual art work display device has advantages of being high in use flexibility and wide in application range.

The invention discloses an aqueous suspension antigravity multifunction power generation device which comprises a fixed seat, an auxiliary vane mechanism, a rotating body, an energy conversion device which is matched with the rotating body and a buoyancy weight saver which is designed integrally with the rotating body. The aqueous suspension antigravity multifunction power generation device has the advantages that an energy conversion rate is close to 100%. The structure is simple, the aqueous suspension antigravity multifunction power generation device can be big or small, a frame structure is utilized, and the aqueous suspension antigravity multifunction power generation device is small in wind pressure, can resist a super typhoon, and can be operated the whole day in bad weather. A metal fatigue phenomenon is not produced. A universal structure is utilized, and an attack angle does not need to be regulated. The buoyancy weight saver is used for offsetting weight of the rotating body, and thus the rotating body can be rotated in weak fluids. Resources are rich, and the power generation device can be used in places with water flowing and wind flowing. Construction cost is low, and the power generation device is economical, practical and environment-friendly.

The invention discloses a follow-up tool magazine mechanism capable of reducing deformation of a cross beam, and belongs to the technical field of machinery. The base is fixed on the ground through foundation bolts, the fixing support is fixed on the base through screws, the follow-up shaft is inserted into the fixing support from the top, a supporting sleeve and a combined sealing ring are arranged between the fixing support and the follow-up shaft, the end portion of the follow-up shaft is sleeved with a flange plate for sealing the fixing support, the end portion of the follow-up shaft is sleeved with a follow-up support, the end of the follow-up support and a tool magazine rotating shaft moving along with the tool magazine are combined together, a spherical washer and a conical washer are arranged between the follow-up support and the follow-up shaft in a sleeved mode, an oil cavity is formed in the follow-up shaft, an oil inlet hole is formed in the bottom end of the follow-up shaft, and a gap exists between a shaft cavity of the fixed support below the supporting sleeve and the follow-up shaft; a connector communicated with an inner shaft cavity of the fixing support is arranged below the supporting sleeve; pressure oil is injected into the fixing support through the connector; and by adjusting the pressure of the pressure oil, the weight of the tool magazine moving along with the cross beam is counteracted in the lifting process of the cross beam, so that deformation of the cross beam is reduced.

The invention discloses a manual processing method of crystal glass artware, and relates to the technical field of glass processing. The artware comprises the following components by weight: 90-110 kgof nano silicon powder, 2-3 kg of potassium nitrate, 2-2.5 kg of zirconium silicate, 15-20 kg of calcite, 1-2 kg of sodium fluoride, 1-1.5 kg of anhydrous sodium sulphate, 1-1.5 kg of sodium nitrate,1-1.5 kg of kyanite, 0.012-0.05 kg of rare earth oxide, 0.008-0.03 kg of nano selenium powder, 0.065-0.09 kg of nano cobalt powder, 0.0038-0.058 kg of cellulose and 0.1-1 kg of phosphotungstic acid.Through the arrangement of a balancing weight and a first rope body, the weight of a handheld machining rod is counteracted, operation is easier, through arrangement of the handheld machining rod, a worker can keep a sitting posture for machining, and therefore the working intensity of the worker in the machining process is reduced, the state of the worker is guaranteed, and the quality of machined products is guaranteed.

The invention discloses a self-locking pre-stress buffering device. The self-locking pre-stress buffering device comprises a cover plate top beam arranged at the top of a cover plate, wherein a pre-tightening steel rope is arranged on the lower part of the cover plate top beam; the two ends of the pre-tightening steel rope are respectively connected with the two ends of the cover plate top beam; the pre-tightening steel rope is provided with a tensioning device; the tensioning device is used for applying a pre-stress to the cover plate top beam by pulling the pre-tightening steel rope so that the middle part of the cover plate top beam protrudes upwards. The applied pre-stress can effectively cancel out one part of weight of the cover plate so as to avoid phenomena that the cover plate top beam 1 is broken down by the weight of the cover plate and the deformation which cannot be self-recovered is caused. According to the self-locking pre-stress buffering device, a first force distribution arm and a second force distribution arm are arranged between the cover plate top beam and a cover plate bottom beam; the first force distribution arm, the second force distribution arm and the two sides of the cover plate are distributed at equal distances; the two sides of the cover plate are provided with vertical beams and the support between the cover plate top beam and the cover plate bottom beam is composed of the two vertical beams, the first force distribution arm and the second force distribution arm. The self-locking pre-stress buffering device has the advantages of applying the pre-stress to the cover plate top beam and preventing the cover plate top beam from being deformed.

The invention provides a crane, and belongs to the field of crane equipment. The crane comprises a main body assembly, a lifting hook assembly and a counterweight assembly; the main body assembly comprises a base column, a rotating column, a lazy arm and a driving rope, the lifting hook assembly comprises a lifting hook and a first rope, the counterweight assembly comprises a first pulley, a second rope and a counterweight frame used for placing a counterweight block, the first pulley is located at the top end of the rotating column, the first pulley protrudes out of the peripheral wall of therotating column, the first end of the second rope is connected with the top end of the lazy arm, the second end of the second rope penetrates through the first pulley to be connected with the counterweight frame, and the counterweight frame is slidably located on the outer wall of the rotating column in the axial direction of the rotating column. According to the crane, the counterweight block can be placed on the counterweight frame, so that the weight of the lazy arm can be counteracted, and the inclination angle can be adjusted by providing less energy consumption when the lazy arm does pitching motion.

The invention discloses a light deep-sea biological light trapping device based on cam driving. The device comprises a trapping cage, a folding door, a door closing mechanism, a power supply control mechanism and a multispectral trapping lamp, the folding door, the door closing mechanism, the power supply control mechanism and the multispectral trapping lamp are connected with the trapping cage, aguide column is arranged at the top of the folding door, and a through U-shaped groove is formed at the top of an opening of the trapping cage. The guide column penetrates through the through U-shaped groove to be connected with the door closing mechanism, the door closing mechanism comprises a concave shell, a guide block, a motor and a cam, a guidance column is arranged at the top in the concave shell, and an elastic pressing device and a guide hole in the guide block are arranged in a matched manner to achieve the limiting and pressing effects; and a limiting column and a guide column limiting column are arranged at the bottom of the guide block, the cam arranged at the bottom of the limiting column is connected with the motor, the motor is connected with the power supply control mechanism, the guide column limiting column is used for limiting the guide column to keep the folding door in an open state, a split round hole is formed in the contact surface of the guide block and the concave shell, a bolt is arranged on the boss of the concave shell, and the bolt is connected with the guide column through a tension device.

A stool and desk support system. The system includes a stool base and a desk support surface. A support member may connect the desk support surface to the stool base and support the desk support surface above a floor surface. The stool base may include a stool seat surface and a rocking mechanism opposite the stool seat surface. The desk support surface may be connected to a desk support base by a neck extending from the desk support base. The stool base may include an upper stool base frame and a lower stool base frame. The upper stool base frame may be height adjustable with respect to the lower stool base frame. The desk support base may connect to the upper stool base frame, permitting coinciding height adjustment of the desk support surface and the upper stool base frame.

The invention provides an electric running-aiding device, belonging to the technical field of wearable devices, and in particular relates to a running-aiding device. The electric running-aiding device mainly comprises power devices, a fixing board and a controller, wherein the two power devices with the same structure and function are distributed in a left-right symmetric manner; each power device comprises a propeller, a motor, a protective shield and a telescopic pipe; the upper end of the telescopic pipe is fixedly connected with the protective shield and the motor, and the lower end of the telescopic pipe is connected with the fixing board. The fixing board plays the role of fixing the device to the body of a user. A battery is mounted in the middle of the fixing board; the controller comprises a CPU, a miniature pressure sensor and a receiver. In use, the user wears the running-aiding device, the CPU controls the rotating speed of the motor, and then the lifting force is adjusted. The electric running-aiding device is suitable for being used when the traffic is crowded during holidays and festivals, or the device can be used by people loving hiking, excursion trip or mountain climbing, and is also suitable for firefighters to climb high-rise buildings to perform rescue. The electric running-aiding device is simple in structure, and part of the human weight can be counteracted, so that a person can walk or run briskly.

The invention discloses a chamber uncovering mechanism convenient for uncovering in a semiconductor vacuum transmission system. The chamber uncovering mechanism comprises a chamber main body, whereinthe chamber main body is provided with an accommodating chamber and an opening leading into the accommodating chamber; a cover body which can cover the opening, wherein the cover body is rotatably connected with the chamber main body; a gas spring which is provided with a first connecting end and a second connecting end, wherein the first connecting end is rotatably connected with the chamber mainbody, and the second connecting end is rotatably connected with the cover body; the gas spring is in a compressed state when the cover body is located at the covering position and abuts against the cover body upwards.

The invention provides a wave resistance tester for a double-pole boat, which comprises a supporting frame, a first test rod and a second test rod, wherein the first test rod and the second test rod are arranged on the supporting frame, and the first test rod and the second test rod can be connected with a boat model. The tester is characterized in the supporting frame is provided with a steeringdriving mechanism capable of driving the supporting rod to steer; two ends of the supporting frame are independently provided with a perforation; the first test rod and the second test rod are independently penetrated in the perforations; and the first test rod and the second test rod can vertically move in the perforations. The wave resistance tester also comprises a first displacement sensor capable of detecting the lifting and lowering amounts of the first test rod and the second test rod. By use of the structure, the dynamic operation data of the boat can be measured, the attitude data ofthe boat can be measured, and the wave resistance tester exhibits high durability. Compared with existing equipment, the wave resistance tester is greatly improved, and can be more favorably applied to ship design work.

The invention relates to an island reef exploration ROV water surface distribution and recovery system and a recovery method thereof. The system includes a mother ship. A transport bench for transporting ROV is installed at the front end of the deck of the mother ship, A floating ball platform and a cable guide are adjacent to each other on the deck beside the transport platform, A crane and a winch are sequentially arranged on the deck behind the cable guide, An umbilical cord cable and a cable clamp are arrange behind that winch, and the crane lifts the ROV into the deep sea. At this time, the end of the umbilical cord cable is fixed by the cable clamp, and the rear end part is connected to the control room of the mother ship, and the other end of the umbilical cord cable bypass the winch and is connected with the ROV through the cable guide and the automatic dismounting floating ball platform. Through the use of winch, cable guide, crane and other equipment to achieve the placementand recovery of ROV, and the use of winch to achieve the placement of umbilical cord cable, recovery, the use of cable guide to reduce the friction between umbilical cord cable and the ship side, theuse of crane to achieve the hoisting and placement of ROV.