49results about How to "Smooth descent" patented technology

The invention discloses a system for differential recovery of potential energy of a boom of an oil liquid hybrid power excavating machine. The system comprises a variable capacity pump, a multi-channel valve, a boom cylinder, an operating handle, a controller, a hydraulic control reversing valve, a hydraulic control reversing and throttling valve, a hydraulic control unloading valve, an energy accumulator, an electro-hydraulic proportional valve and a one-way valve. The controller is used for controlling the electro-hydraulic proportional valve and the variable capacity pump according to pressure at an outlet of the variable capacity pump and a pressure signal of the energy accumulator, thereby solving the flow distribution problem of the energy accumulator and the variable capacity pump. The energy accumulator is an energy storage element which can transform descending kinetic energy and potential energy of the boom to hydraulic energy and reasonably distribute the energy for a main power source and an auxiliary power source, and a working device is driven by the pump-energy accumulator. The system can avoid the waste of a large amount of the descending kinetic energy of the boom, reduce the energy transformation link, enable an engine to stably work in a high-efficient fuel oil region, improve the fuel coil economy of the excavating machine and reduce the emission of the system.

An escape device (10) including a cable (18), a rotatable cable dispensing assembly (22) from which the cable (18) is dispensed under load, a braking mechanism (28) operatively connected to the rotatable cable dispensing assembly (22), whereby a braking response of the braking mechanism (18) is proportional to the rate at which cable (18) is dispensed from the rotatable cable dispensing assembly (22).

The invention provides a composite fixture which comprises a vertical plate-shaped fixture body and at least one clamping device assembly. The clamping device assembly comprises two gripper jaws and cylinder driving systems arranged at the tail ends of the two gripper jaws; each cylinder driving system comprises a housing and a cylinder arranged in the housing, and a piston rod of the cylinder is connected with one gripper jaw so as to drive the gripper jaw to carry out relative movement; and the clamping device assembly is fixedly arranged on the fixture body and allows the two gripper jaws to extend out of the edge of the fixture body so as to clamp an object. When the composite fixture is used for setting a sand core, the sand core can be smoothly placed into a sand mold cavity, so tilting of the sand core and colliding between the sand core and a sand mold in the process of placing are avoided, integrality of the sand core and the sand mold cavity is maintained, and the quality of a casting is improved; furthermore, automatic core setting by using the composite fixture enables production efficiency to be enhanced and the level of manufacture technology for railway vehicles to be comprehensively elevated.

A radiator core assembly machine comprises a window, an operator, a support lever, box doors, supporting feet, and an assembly host, the window is embedded at the upper end of the front surface of theassembly host, the lower surface of the operator is welded to the upper end of the support lever, the lower end of that support lever is hinged to the right side of the front surface of the assemblyhost, the two box doors are arranged at the lower end of the front surface of the assembly host, the upper ends of the supporting feet are weld to the lower surface of the assembly host, the assemblyhost is electrically connected with the operator through a wire, the material in the assembling process is flattened by a flattening mechanism, the assembled radiator is relatively flat, and the use performance of the radiator is ensured. A nested mechanism is used for assembly and drives a transmission mechanism to run at the same time, so that a blast cooling mechanism generates wind energy, theassembly process is cooled, the material is prevented from being heated and damaged, and a reinforcing mechanism makes the assembly process firmer.

The invention discloses a combined water retaining device for water conservancy construction, comprising a group of device bases; left risers, right risers and middle risers which are arranged on the device bases; a group of positioning drill rods respectively penetrates through two ends of the device bases; slide tracks are arranged on the left sides of the left vertical slab and slide rails are arranged on the right sides of the right risers; the upper parts of the right risers, the middle risers and the middle risers are connected with extension risers; the tops of the extension risers are respectively connected with top cover plates; middle water retaining plates are respectively arranged among the left risers, the middle risers and the right risers; gap water retaining plates are arranged between the left risers and the right risers adjacent to the left risers. The combined water retaining device is simplified in structure and convenient to disassemble and assemble; water flow is step by step cut off through combined installation, and thus the water retaining device has the good cut-off effect; after construction completion, the entire device can be withdrawn and reused, and thus the water conservancy construction cost is reduced.

The utility model discloses a rope rolling rack and a detachable portal crane. The detachable portal crane comprises a three-dimensional frame formed by detachably connecting multiple blocks together, a traveling crane arranged on the upper part of the three-dimensional frame, and a loading and unloading device used for loading and unloading materials, and also comprises a rope rolling rack arranged at the bottom of the three-dimensional frame, a rope arrangement wheel component arranged on the top of the three-dimensional frame, first traction equipment, second traction equipment and a driving device which drives the traveling crane to reciprocate, wherein the second traction equipment is connected with one end of the loading and unloading device through a second traction rope; the loading and unloading device comprises a movable door; an inner wall of the movable door is connected with the first traction equipment through a first traction rope; the traveling crane comprises a lifting beam and a lifting box arranged on the lifting beam; and an insertion structure for fastening and loosening the loading and unloading device is formed in the lifting box. The portal crane disclosed by the utility model can be detached and moved at any time, is suitable for field operation and contributes to transportation of mechanical equipment.

The invention relates to a portable liquid level meter for a sewage station. The portable liquid level meter comprises a handle, a gauge rack, a gauge shaft, a measuring gauge, a passive self-locking bearing, a rocking handle, a sludge scraper and a floater, wherein the handle is arranged at one end of the gauge rack, the passive self-locking bearing is fixed to the outside of the gauge rack through a bearing cover, one end of the gauge shaft is connected with the inner side of the passive end of the passive self-locking bearing, the measuring gauge is wound at the other end of the gauge shaft, and the free end of the measuring gauge is movably connected with the floater through the sludge scraper. The rocking handle is connected with the inner side of the active end of the passive self-locking bearing. The portable liquid level meter is convenient to carry, is used or put away at any time, adapts to various types of water, is not eroded, is not affected by floating bubbles and can be automatically cleaned, the measuring gauge is passively self-locked during measurement, and the situation of automatic descending of the floater does not occur.

The invention discloses a camera suspension device for aerial photography unmanned aerial vehicle, the structure includes rotating fan blades, drive motor, Connecting frame, camera suspension mainframe, A support frame, that rotate blades bee welded to the drive motor and mechanically connected, A drive motor is fixedly mounted at the end of the connecting frame, At that same time, the work of thesmooth sliding mechanism make the camera more smooth in the course of lifting and lowering, and prevents the camera from get stuck; Through the rotation of the rotating mechanism, the whole image pickup mechanism is rotated by 360 degrees, so that the camera rotates by 360 degrees and shoots in all directions, so that the difficult space to be photographed can be photographed, and the process ofthe rotation of the image pickup mechanism is damped by the vibration damping mechanism, so as to ensure that the image pickup mechanism can be reduced to rotate normally.

The invention discloses a brake cable releasing mechanism. The brake cable releasing mechanism comprises a shifting assembly installed on a supporting base and used for controlling position shift, and the shifting assembly comprises a handle, a rotary shaft matched with the handle and a rotary block connected with the rotary shaft. The shifting assembly further comprises a slide shaft used for being connected with a brake cable, a special-shaped open groove is formed in the rotary block, and the slide shaft is sleeved with the special-shaped open groove. According to the brake cable releasing mechanism, when the handle is downwards pulled or upwards pushed, the brake cable can be released, and smooth lifting of a medical tower crane can be achieved.

The invention relates to a feeder used for medical care. The feeder comprises baffle boards, a fixing rack, fixing belts, a protection pad, a food outlet, an anti-sticking layer and a slot. The bottom ends of the baffle boards are equipped with feeding buckets. The insides of the feeding buckets are provided with adjusting shafts. The fixing rack is fixed at the bottom ends of the adjusting shafts. A feeder body is installed below the fixing rack. The fixing belts are inlaid on two sides of the feeder body. The interior of the feeder body is provided with a feeding pipeline. The protection pad is inlaid on the outer wall of the feeder body. The food outlet is installed in the bottom end of the feeder body. Two sides of the food outlet are fixed with limiting boards. The feeder used for medical care has the following beneficial effects: during application, outsides of the feeding buckets are blocked through the baffle boards in order to prevent food from overflowing; additionally, insides of the feeding buckets are in the structures of funnels so that food can automatically gather towards the bottom.

The invention provides a curtain capable of being automatically cleaned and belongs to the technical field of curtains. The curtain comprises winding drums and a cloth curtain wound on the winding drums, wherein two ends of the winding drums are arranged on a wall body through mounting brackets; in addition, one end of one winding drum is connected with a motor through a rotating shaft; a dust cleaning assembly is arranged below the winding drums and comprises two dust cleaning plates for clamping the cloth curtain at the middle part; a driving component for controlling the two dust cleaning plates to be close to each other is rotationally arranged on one side of each bracket; inserting rods are fixedly connected to the end parts of the two dust cleaning plates; each driving component comprises a rotary table and a half gear which is fixedly arranged on one side of the rotary table; and a rotating drum which is rotationally matched with the corresponding bracket is fixedly connected tothe other side of each rotary table. The embodiment of the invention has the advantages of simple structure and good dust cleaning effect; and meanwhile, the condition that people repeatedly climb when cleaning the curtain is avoided, potential safety hazards are eliminated and the cleaning time of the curtain is prolonged.

The invention discloses a portable underground water fixed-depth sampling device. The device comprises a base; a fixing frame is arranged on the outer wall of the top of the base; a rotating pipe is rotatably arranged on the fixing frame; a hose is connected to the outer wall of the rotating pipe in a wound mode; one end of the hose is communicated with the rotating pipe; a sampling mechanism is arranged at the other end of the hose; an adjusting wheel is arranged on the outer wall of one side of the rotating pipe; an air suction cylinder is arranged on the outer wall of the rotating pipe; theair suction cylinder is communicated with the rotating pipe through a communicating pipe; a control valve is arranged on the outer wall of the communicating pipe; a limiting mechanism is arranged onthe fixing frame; a supporting mechanism is arranged on the base; the sampling mechanism comprises a sampling barrel, a sliding rod, a piston plate, a collecting barrel and a rubber pad; and a mounting opening is formed in the outer wall of the top of the sampling barrel. In the process of moving the sampling barrel up and down, underground water of other depths is effectively prevented from immersing into the sampling barrel, so that fixed-depth sampling is effectively achieved, and a sampling effect is better.

The invention provides a brick stack feeding device and a destacker using the brick stack feeding device. The brick stack feeding device includes a main frame, a first oil cylinder, a lifting frame and a guide plate group, the first oil cylinder is arranged in the main frame, the output end of the first oil cylinder is connected with the lifting frame, the guide plate group includes a plurality ofsets of guide plates, the multiple sets of guide plates are arranged in the main frame in an inclined manner, and a prism-frustum-shaped containing cavity with the small top and the large bottom is formed among the multiple sets of guide plates. The unstacker using the brick stack feeding device includes a large frame, a walking trolley, a destacker gripper and the brick stack feeding device, thewalking trolley is connected to the destacker gripper, the walking trolley can walk on the large frame, and the brick stack feeding device is arranged below the large frame. By means of the destacker, in the feeding process of sintered bricks to be disassembled, all layers of sintered bricks are neatened at the same time, the lower-layer sintered bricks needing to be disassembled are clamped, thelower-layer sintered bricks keep the original state when upper-layer sintered bricks are subjected to seam jointing and clamping, good and reliable clamping of the sintered bricks can be achieved, and the destacking process of sintered brick stacks is completed.

The invention discloses a vertical forming cabinet. The vertical forming cabinet comprises a cabinet body, layer board mechanisms layered in the cabinet body layer by layer, and counterweight mechanisms which are set in the cabinet body to offset the self-weight of the layer board mechanisms. Each counterweight mechanism comprises a hanging wheel assembly, a limit guide assembly arranged below thehanging wheel assembly, and a weight piece which slidingly matches the limit guide assembly. Each weight piece is connected with the corresponding layer board mechanism through a pulling rope wound on a hanging wheel assembly. According to the vertical forming cabinet designed in the structure, each limit guide assembly is arranged in a counterweight mechanism, which makes a weight piece more stable during the rising or lowering process; mutual collision between adjacent weight pieces or entanglement between adjacent pulling ropes can be effectively avoided; and the reliability of the vertical forming cabinet is effectively improved.

Flying artefact and its device for aerial advertising to be pulled from the surface or tied up to a fixed point, which includes an element of elevation and suspension in the air (1) with advertising medium function, built in a very light and resistant material, with the shape of an aerodynamic profile, which has an opening (4) at its front part reinforced with light and resistant tubes, and an opening (5) on its back, which has a curved upper surface (6) and a flat lower surface (7), and which acquires its shape when the air passes through its four walls; a pulling or clamping line (3) which is tied up to the chosen pulling means or fixed point; at least two ropes (2) that connect the pulling or clamping line (3) with the front opening (4); the advertising material being placed on both sides and all along the element of elevation and suspension (1).