181results about How to "Save height space" patented technology

The invention provides a refrigerator with a cooling chamber located at the lower part of the inner side of a freezing inner container. The refrigerator comprises a box body, wherein the box body comprises a storage inner container, the storage inner container comprises the freezing inner container located at the lower part, the cooling chamber is defined at the lower part of the inner side of the freezing inner container, and a storage chamber located above the cooling chamber is defined in the storage inner container; and an evaporator is arranged in the cooling chamber, the cooling chamber occupies the space of the lower part in the freezing inner container, the position of a freezing chamber located above the cooling chamber in the freezing inner container can be effectively lifted, the stooping degree of a user generated during the operation of taking and placing objects from and into the freezing chamber is reduced, and the use experience of the user is improved. A centrifugal fan is located in the cooling chamber and is arranged on the rear side of the evaporator in a backwards-inclined mode, so that the height of the centrifugal fan is reduced, the space occupied by the cooling chamber is reduced so as to expand the space located above the cooling chamber in the freezing inner container, and the storage chamber located above the cooling chamber is defined in the storage inner container.

The invention discloses a bottom lifting device of a hydraulic support, comprising a bottom lifting jack and a crow plate, wherein, the external end part of the crow plate and a base are hinged with a rotation shaft; the internal end part of the crow plate suspends on air; the two ends of the bottom lifting jack are respectively hinged with the base and the middle part of the crow plate; the crow plate comprises a horizontal part parallel to the lower flat surface of the base of the hydraulic support; and the range of the included angle between the axis of the bottom lifting jack and the horizontal part parallel to the lower flat surface of the base is 0-45 degrees. The bottom lifting device provided by the invention only occupies small longitudinal space, can be suitable for the bottom-sealing-type base, the enforced condition of pushing and moving the jack and a push rod is improved, and the service life of the bottom lifting device is prolonged. The invention also discloses a hydraulic support comprising the bottom lifting device.

The invention provides a shuttle comprising a frame and a travelling mechanism fixed on the frame. The shuttle further comprises a traction mechanism disposed on the frame. The traction mechanism comprises an actuator arranged above the frame and a drive mechanism which drives the actuator to operate. The actuator comprises a first sprocket, a second sprocket, a first chain, and traction pins; the first sprocket fixed on the frame is driven by the drive mechanism; the second sprocket faces the first sprocket; the first sprocket and the second sprocket are in meshed connection through the first chain; the traction pins are fixed on the first chain. The shuttle is simple in structure, high in goods handling efficiency, convenient to manufacture and low in cost.

The invention discloses a method for reducing the strong alkalinity of red mud, belongs to the technical field of red mud utilization, and aims to solve the problems that in the prior art, the using amount of an acidic solution for adjusting the alkalinity of red mud is large, the corrosive property of the acidic solution is strong, the cost is high, a large amount of waste liquid, which is hard to process, is generated, and the recovery rate of red mud is low. The method comprises following steps: grinding a biomass raw material by a crusher to obtain biomass powder; delivering biomass powder, water and a catalyst into a stirring pot, stirring to obtain a mixed material; adding the mixed material into a high pressure reactor, heating the high pressure reactor, maintaining the temperature;then cooling to the room temperature to obtain a hydrothermal carbonization product; subjecting the hydrothermal carbonization product to solid-liquid separation to obtain hydrothermal charcoals anda hydrothermal charcoal liquid; mixing the hydrothermal charcoal liquid and red mud, adding the mixture into a stirring tank, stirring, and carrying out solid-liquid separation then to obtain solid modified red mud with reduced alkalinity. The provided method reduces the strong alkalinity of red mud.

The invention relates to an ultra-low double girder crane with a large used space. The ultra-low double girder crane with the large used space comprises an end beam. Lifting platforms are arranged on positions, close to two ends, on the lower surface of the end beam; wheel carriers are connected to the lower surfaces of the lifting platforms through turn tables; walking wheels are arranged in the wheel carriers; a drive device A is connected onto each walking wheel; the walking wheels are arranged on an upper step surface of an I-shaped cart guide rail; supporting wheels are arranged under the walking wheels on the wheel carriers, and are arranged on the lower surface of the upper step surface of the cart guide rail; two mutually parallel girders are connected onto the inner surface of the end beam, and adopt a 'U'-shaped structure; trolley walking rails are arranged on the upper surfaces of the girders; trolley walking mechanisms are arranged on the trolley walking rails; each trolley walking mechanism is formed by an upper walking wheel and a lower walking wheel; a drive device B is connected onto each trolley walking mechanism; the trolley walking mechanisms are arranged on hanging plates; and the hanging plates are fixed to two sides of a trolley frame. The ultra-low double girder crane with the large used space provided by the invention is adjustable in girder height, convenient to maintain and use, and wide in application range.

The invention relates to a nursing bed. The nursing bed comprises a bed frame, wherein a mattress is arranged on the upper side of the bed frame and comprises a backrest cushion, a fixed cushion, a thigh supporting cushion and a shank supporting cushion, one end of the backrest cushion is rotationally fixed with the fixed cushion, one end of the thigh supporting cushion is rotationally fixed withthe fixed cushion, the shank supporting cushion is rotationally fixed with the other end of the thigh supporting cushion, the fixed cushion is fixed with a mattress frame, the mattress frame is supported and connected onto the bed frame in a manner of horizontally rotating around the vertical axis, and the shank supporting cushion is connected with a leg support driving mechanism for overturning the shank supporting cushion. The nursing bed has the advantages that the use and operation steps are fewer, the use comfort is higher, and the mattress is more stable and not prone to inclination during use.

The invention discloses a servo mechanism for a low-profile mobile satellite communication antenna. The servo mechanism for the low-profile mobile satellite communication antenna comprises a double-correction ring-focus antenna, a slip ring, tracking gears for three axes, a pitching supporting mechanism, a polarizing supporting mechanism, an installation platform, a base plate and the like, wherein the tracking gears for the three axes comprise the azimuth tracking gear, the pitching tracking gear and the polarizing tracking gear, the inner circle and the outer circle of the slip ring are connected with the installation platform and the base plate respectively, the azimuth tracking gear is installed on the base plate and the installation platform, the pitching tracking gear is installed on the pitching supporting mechanism and the polarizing supporting mechanism, and the polarizing tracking gear is installed on the double-correction ring-focus antenna and the polarizing supporting mechanism. The servo mechanism for the low-profile mobile satellite communication antenna is characterized in that the slip ring has the signal breakover function and can serve as an azimuth rotary shaft, the eccentricity design that the pitching supporting mechanism and the polarizing supporting mechanism are in orthogonal connection with the slip ring and are not in intersection with the slip ring, and thus the overall height of the mechanism is greatly reduced. The servo mechanism for the low-profile mobile satellite communication antenna has the advantages that the overall height is small, the size is small, the weight is low, the structure is simple, and assembly and disassembly are convenient. The servo mechanism for the low-profile mobile satellite communication antenna can be applied to the roofs of small cross-country vehicles or other mobile carriers with installation spaces strictly limited.

The invention discloses a front fork and portal double-folding device capable of moving forwards and backwards. The front fork and portal double-folding device capable of moving forwards and backwards is characterized in that the device comprises a pallet fork, an inner portal, an outer portal and a guide rail forklift frame; the pallet fork comprises a front fork and a pallet fork carrier; the front fork is rotatably connected with the pallet fork carrier; the inner portal and the outer portal are slidably connected in a matched mode, the inner portal and the outer portal are vertically arranged, and the inner portal and the outer portal can rotate around the lower portion of the outer portal; the guide rail forklift frame is horizontally arranged, and the outer portal and the guide rail forklift frame are slidably connected in a matched mode; and the pallet fork carrier is arranged on the inner portal, and the pallet fork carrier is slidably connected with the inner portal in a matched mode through a lifting assembly. According to a forklift provided with the device, forklift transportation is slightly limited, the weight of the whole forklift is low, and the using cost and transportation cost are low.

The invention aims to provide an engine type generator, which is reliable and convenient for carrying and moving in a labor-saving way and is used for reinforcing an entire machine. The engine type generator comprises an engine, a chassis and a pull rod, wherein the generator is driven by using the engine; two wheels are set as movable pieces of the chassis; the pull rod is used for driving the generator to move in cooperation with the wheels; and a frame is arranged in the chassis.

The invention provides a combined type multifunctional hanger which comprises a double plate type balance beam, wherein the double plate type balance beam is formed by two parallel balance plates; a supporting type balance beam is arranged below the double plate type balance beam; the supporting type balance beam comprises a transverse beam; one supporting plate is mounted at one end of the transverse beam, and the other supporting plate is mounted at the other end of the transverse beam; hook fixing shafts and limiting shafts are mounted between the supporting plates; hooks are mounted on the hook fixing shafts; all the limiting shafts are connected through annular slings; movable limiting shafts are arranged in the annular slings; two ends of each movable limiting shaft move along horizontal guiding grooves in horizontal guiding plates; both a first horizontal guiding plate and a second horizontal guiding plate are connected with the transverse beam; the limiting shafts are connected through resetting tension springs; and a plurality of sling guiding shafts are mounted between the supporting plates. According to the hanger, during hoisting, a bending moment and transverse supporting force borne by the hanger can be offset, the hoisting height of a hoisting device is effectively increased, and hoisting requirements of large and heavy industrial equipment are met.

The invention discloses a novel U-shaped fin tube heat exchanger and a fixing mode thereof. A common U-shaped fin tube heat exchanger is designed into a horizontal U-shaped heat exchanger with an upward opening, a gas collecting tube assembly is horizontally arranged, the gas collecting tube assembly and a dispenser assembly are respectively assembled outside one side of the fin tube heat exchanger, and an end plate I and an end plate II are respectively shaped into a U-shaped structure. The invention has the advantages of ensuring that pressure drops of refrigerants of all refrigerant loops are consistent and wind circulation of each refrigerating system is more uniform, effectively solving the problem of nonuniform defrosting of heat exchangers adopting other fixing modes, and reducing the height of the whole set because an outdoor condensing fan blade and a motor are installed in a space in the U-shaped fin tube heat exchanger.

The invention discloses a broad-band double-circular-polarization panel self-tracking antenna, and the antenna comprises an antenna array, a double-circular-polarization sub-array feed network, a supporting column, a filtering low-noise amplifier assembly, a sum-difference modulator combination, an antenna cover, an antenna bottom plate, an antenna cavity, and a cover plate. The antenna array is connected with the double-circular-polarization sub-array feed network through the supporting column, and the double-circular-polarization sub-array feed network is fixed on the antenna bottom plate. One end of the supporting column passes through a corresponding through hole of the antenna array to be fixed through a screw, and the other end of the supporting column passes through the double-circular-polarization sub-array feed network and the antenna bottom plate to be fixed on the antenna cavity. The filtering low-noise amplifier assembly and the sum-difference modulator combination are fixed below the antenna bottom plate. The antenna bottom plate and the antenna cover are fixed on the antenna cavity. The lower end of the antenna cavity is provided with the cover plate. The input end of the filtering low-noise amplifier assembly is connected with the output end of the double-circular-polarization sub-array feed network. The output end of the filtering low-noise amplifier assembly is connected with the input end of the sum-difference modulator combination.

The invention provides an anti-shake structure, an anti-shake system and a camera device. The anti-shake structure comprises: a shell; a lens support; a driving coil which is arranged on the lens supporting body around the circumferential direction of the lens supporting body; a flexible FPC board which is arranged around the circumferential inner side wall of the shell and is provided with a plurality of lateral coils; a supporting frame which is located between the lens supporting body and the flexible FPC board, and installation notches are formed in the multiple side walls, corresponding to the lateral coils, of the supporting frame; a plurality of driving magnets which are arranged on the mounting gaps, so that the plurality of lateral coils are arranged corresponding to the pluralityof driving magnets; and a base, wherein a part of the electric conduction structure is embedded in the base, and the other part of the electric conduction structure extends out of the base to form aterminal pin part or is electrically connected with the FPC board. The problem that in the prior art, an anti-shake structure is poor in anti-shake thrust performance is solved.

The invention provides a suspension type corridor elevator, and relates to the technical field of elevators. The suspension type corridor elevator comprises I-beam rail devices and a monorail train; the I-beam rail devices are fixedly arranged on top plates corresponding to stair slope sections and top plates corresponding to stair turning platforms; the monorail train comprises rail car devices which are connected in series; each rail car device comprises a bearing support; two groups of bearing wheel pairs are symmetrically arranged on the two sides of the upper end of each bearing support and are clamped in grooves in the abdominal regions of the rail devices, the lower edges of the two groups of bearing wheel pairs make contact with the upper end surfaces of the lower flanges of the rail devices and can roll on the flanges; bearing booms are arranged on the bearing supports in a rotating mode; passenger pedals are hinged to the other ends of the bearing booms; the rail car devicesare provided with driving gears, and the driving gears mesh with transmission racks at the middle parts of the lower end surfaces of the rail devices; and driving motors drive the driving gears to rotate. The suspension type corridor elevator has the advantages that the height space above the stair surface and below two meters in a stair way an be saved, and the phenomenon that the action of residents is influenced due to the fact that the corridor elevator is arranged can be avoided.