36results about How to "Solve the problem of not being able to install" patented technology

A parallel stage separation free flight wind tunnel testing device with the mass center located on the interface comprises a first model, a second model, a pull pin frame, pins, a first fixing nail, asecond fixing nail, a first spring, a second spring, a first pull pin and a second pull pin. The first pull pin, the second pull pin and the pull pin frame are installed together through the two pins, the first fixing nail and the second fixing nail penetrate through respective springs and are inserted into the first model and the second model, and the pull pins installed just are inserted into the models from the model tails and are just inserted into a round hole formed by a semi-circular groove of the first fixing nail and a round hole formed by a semi-circular groove of the second fixingnail to lock the whole model set. It is ensured that the first model and the second model can be fast and effectively separated without interference, the problem that a parallel stage separation freeflight wind tunnel test with the mass center located on the interface cannot be realized is solved mainly, and the defect that two stages cannot release the freedom degree at the same time due to theprevious model fixing mode is overcome.

The invention relates to the technical field of steel sheet pile cofferdam construction, in particular to a deep water combined steel sheet pile cofferdam construction method. The method comprises the steps that steel casings are inserted and driven into a cofferdam construction area; bearing structures are arranged in the positions, corresponding to enclosure purlin mounting positions, of steel sheet piles; the steel sheet piles are inserted and driven by relying on the steel casings to form a cofferdam structure in an encircling mode; enclosure purlins are sequentially hoisted onto the bearing structures on the inner sides of the steel sheet piles from bottom to top; water in the cofferdam is pumped layer by layer, and inner supports of the enclosure purlins are mounted layer by layer from top to bottom; and after all the inner supports are mounted, concrete is poured into the cofferdam to form a bearing platform structure. According to the method, corbels are arranged for the steel sheet piles in advance to realize in-place arrangement of the enclosure purlins in advance; through the construction method of conducting water pumping after bottom sealing, integral connecting of the enclosure purlins, and subsequent installation of the inner supports, adverse influences caused by existence of the steel casings, the upper-layer enclosure purlins and the inner supports on the operating space are avoided, the problem that large enclosure purlins cannot be installed is solved effectively, and the installation difficulty of the inner supports during the later period is lowered.

The invention relates to the technical field of 10kV distribution network load operation, in particular to an operating method and device for replacing a 10kV pole-mounted drop-out fuse. A self-extinguishing bypass drop-out fuse is taken as temporary bypass equipment for shunting a drop-out fuse to be replaced in order to fulfill the aim of converting charge, so that the drop-out fuse to be replaced is replaced after exiting from operation. Compared with the prior art, the method has the beneficial effects that (1) the self-extinguishing drop-out fuse is taken as shunting equipment, so that the technical condition for charged replacement of the drop-out fuse is satisfied, and the operation difficulty is lowered; (2) stable connection of the shunting equipment and an electric pole is completed by adopting an insulating lifting bracket, so that enough safety distance can be provided for operating personnel, and the problems of small equipment interval and incapability of mounting the shunting equipment are solved; (3) the method is consistent with the technical characteristics of the national charged operation in China, charged replacement of the drop-out fuse is realized, and economic losses of downstream power utilization enterprises and residents caused by power cut are avoided.

The invention provides an air inlet thermal-insulated device of kitchen tool, with simple installment and energy-saving property, for balancing the inner and outer pressures of room and eliminating the indoor smoke, and insulating the generated high temperature of kitchen tool and indoor room, to reduce the hot and cold air consumptions.

The invention discloses a motor speed measuring device. The motor speed measuring device comprises a motor rotating shaft and a speed measuring rotating shaft, wherein the motor rotating shaft is hotly sleeved with a first gear; the speed measuring rotating shaft is hotly sleeved with a second gear; the first gear and the second gear are engaged by a gear; an encoder is mounted on the speed measuring rotating shaft; the speed measuring rotating shaft is mounted in a lug boss inner hole structure of an end cover by a bearing. The speed measuring device is simple and compact in structure, and reliable; the problem that the rotating speed of a motor cannot be accurately measured under the condition that double shaft extension motors have loads is solved, so that the structure guarantees for reliable speed measurement of the motors are provided.

The invention discloses a low-voltage multipurpose short-circuit connector, comprising fixing clamps, flexible jumping wires and a short-circuit connecting member, wherein each fixing clamp comprises a conductive fixing member and a conductive adapting member; each of the flexible jumping wires is a conductive braided strap; each of two ends of each conductive braided strap is provided with a connecting hole; the short-circuit connecting member comprises a back plate which is made of a material with an insulating arc-isolating effect and is used for fixation; the back plate is provided with installation holes which are adapted to fuse wires with different pitches and the size of a base; the fuse wires are arranged on the base. In the field application, the low-voltage multipurpose short-circuit connector disclosed by the invention can be used as an effective measure for quickly repairing and recovering electric power after switches with different models and different specifications are in fault, and can also be fixedly used as the leading end of a short-circuit connection grounding wire. According to the low-voltage multipurpose short-circuit connector, not only are the problems that the rush repairing time is long due to the fact that a switch is not matched, and the power fault range is large solved, but also the problem that the leading end of the overhauling grounding wire of most switches cannot be installed is solved, and the operation efficiency and power supply reliability are improved.

The embodiment of the invention discloses a constant temperature faucet with a cooling pipe and a heating pipe switchable. The constant temperature faucet comprises a constant temperature assembly, and the constant temperature assembly comprises a constant temperature body. The constant temperature body is provided with a cold water inlet part, a hot water inlet part and a connector part used for connecting the cold water inlet part with the hot water inlet part, and water flow runners are formed in the connector part. The connector part is internally provided with the cold water runner, the hot water runner, the adjustable runner, the cold water flow-out runner and the hot water flow-out runner, wherein the cold water runner communicates with the cold water inlet part; the hot water runner communicates with the hot water inlet part; the adjustable runner is arranged between the cold water runner and the hot water runner; the cold water flow-out runner and the hot water flow-out runner are separated from each other and communicate with a constant temperature valve element cavity. The design of the internal water flow runners of the constant temperature faucet is improved, switching between cold drained water and hot drained water is achieved through an adjustable component, the application range of the constant temperature faucet is extended, the constant temperature faucet can meet the different mounting conditions and use preferences, and accordingly the constant temperature faucet has broader market prospects.

The invention relates to a method and device for detecting whether nuts mounted on a base plate are missed in trunk cover plate production. Light-guide fibers are used for transmitting reflected light on the nuts to photoelectric converting elements which convert the reflected light to electric signals, then the electric signals are sent to judging units, the strength of the reflected light is judged according to the strength of the electric signals, and therefore whether the nuts are missed can be known. The method and device solve the problem the detection is difficult due to the facts that the nuts are large in number and small in size, and the distances between the nuts are small, and the missing mounting detection problem is solved through the economical method.

The invention provides an automatic rebounding device for a movable block, and the automatic rebounding device is used for movably arranging the movable block onto a body of a mould. The automatic rebounding device comprises a positioning block, a first locking nut, a second locking nut, a guide post, a positioning slot, a spring and a movable block, wherein when a core shooting mould is closed, the positioning block is pressed to move along the positioning slot, so that the movable block is driven to reach a predetermined position on the body of the mould; the spring is pressed, so that one end of the spring abuts against the positioning slot; and when the core shooting mould is opened, pressure borne on the tail end of the movable block is removed, so that the spring automatically rebounds to drive the positioning block to drive the movable block to return. The automatic rebounding device has the advantages of being simple in structure, convenient to operate, strong in applicability and the like, reduces dependency on labor power, improves manufacturing precision of a sand core, and effectively improves production efficiency.

The invention belongs to the technical field of parts for doors and windows, and particularly relates to a three-dimensional hinge for an aluminium-alloy flat-opening door. The three-dimensional hinge comprises a base and a movable hinge, and is characterized in that the base is fixed on a frame bottom strip; the inner side of the base is provided with a frame shaft sleeve; one end of the connecting shaft is inserted in the frame shaft sleeve, and the other end of the connecting shaft is inserted into a sector shaft sleeve which is arranged at the inner side of the movable hinge; a positioning shaft sleeve is arranged between the connecting shaft and the sector shaft sleeve; and the movable hinge is fixed on a sector bottom strip. The three-dimensional hinge has the beneficial effects of reasonable structure, fast installation, convenience in use, strong adjustability, high bearing capability, strong corrosion resistance, long service life and wide application range.

The invention provides a power input connecting structure for a special dresser of a vertical shaft double-end surface grinding machine, the invention solves the problem of spatial installation failure problem of the power input connecting structure and a grinding wheel dresser, needs no additional preserved space, and has low design cost and manufacturing cost. The power input connecting structure comprises a grinding wheel dresser rack, a dresser rotating shaft, a dresser pedestal and a motor, wherein the grinding wheel dresser rack is fastened on one end of the dresser rotating shaft, the other end of the dresser rotating shaft is inserted in the dresser pedestal, the power input connecting structure is characterized in that the motor is fastened on an external mounting plate, the external mounting plate is situated in the external space of the grinding wheel dresser rack, the output shaft of the motor is sleeved on one end of a driver plate, the other end of the driver plate is fixedly connected with one end of a transitional plate, the other end of the transitional plate is fixedly connected with one end of a rotating plate, the other end of the rotating plate is fixedly connected with the other end of the dresser rotating shaft, and the length of the rotating plate is larger than the length of the driver plate.

The invention relates to a prefabricated hollow column and superposed beam connecting structure and a construction method. The prefabricated hollow column and superposed beam connecting structure comprises a hollow column and a superposed beam, wherein the hollow column and the superposed beam are connected with each other; a beam hole is reserved in the beam and column junction area of the hollowcolumn according to the size of the superposed beam, and hoop ribs of the hollow column in the beam hole are normally arranged; bottom longitudinal stressed rebars and beam side constructed ribs or twisted ribs of the superposed beam are mechanically connected or connected in a binding mode within a 1/3 superposed beam support seat span range outside the hollow column; and upper longitudinal stressed rebars of the superposed beam are mechanically connected or connected in the binding mode within a 1/3 superposed beam midspan range outside the hollow column. The construction method of the rebars in the beam and column core area of the prefabricated hollow column of prefabricated concrete has the advantages of high construction speed and high installation efficiency and conforms to the development trend of assembled and standardized building industrialization.

The invention discloses a real vehicle power load test system and method for a crawler-type vehicle power device. The real vehicle power load test system comprises a signal adapter, a data acquisition module, a wireless torque test device, a comprehensive acquisition instrument and a camera, wherein the data acquisition module is installed in a cockpit and receives the video information of the camera and switching data of the signal adapter; the signal adapter is connected with the comprehensive acquisition instrument; the camera is mounted at a set position of a vehicle head, and the signal adapter is arranged in a power cabin, receives the information acquired by the comprehensive acquisition instrument and transmits the information to the data acquisition module; the system solves a problem that the dynamic load cannot be obtained due to limited space of the special vehicle and inconvenient installation of equipment.

The invention discloses a handle fixing structure which comprises a handle assembly and a door shell assembly. The handle assembly is connected with two special-shaped through holes in the door shell assembly through two connecting columns. The end, inserted into the corresponding special-shaped through hole, of each connecting column is provided with an annular groove. The outer diameters, at the portion of the annular grooves, of the connecting columns are matched with the outer diameters of the small-bore ends of the special-shaped through holes. The outer diameters, at the two side portions of the annular grooves, of the connecting columns are larger than the outer diameters of the small-bore ends of the special-shaped through holes and smaller than the outer diameters of the large-bore ends of the special-shaped through holes. The end, inserted into the handle assembly, of each connecting column is fixedly connected with the handle assembly. The two special-shaped through holes in the door shell assembly are arranged in a mirror-symmetry mode. The distance between the centers of the two large-bore ends is larger than the distance between the centers of the two small-bore ends. The distance between the centers of the two small-bore ends is matched with the installation distance of the two connecting columns on the handle assembly. According to the scheme, the problem that installation cannot be achieved due to the fact that handle holes are not concentric is solved, the position of a handle can be adjusted, and disassembly and replacement are convenient.