175results about How to "Guaranteed normal displacement" patented technology

The present invention relates to an automatic variable fishway. More particularly, an automatic variable fishway by water level sensed of the invention can automatically vary its height to uniformly maintain the quantity of water drained through the fishway so that migratory animals can freely move through the fishway to upstream or downstream of a dam regardless of the quantity of storage water. The automatic variable fishway by water level sensed of the invention is installed in a bank for storing a predetermined quantity of water to allow migration of fish, and comprises: an underwater gate 170 for being erected or laid by a drive means which is operative in response to a signal from a water level detecting sensor 50 for detecting the level of storage water; and a fishway plate 110 connected with a top of the underwater gate 170 to form a migration path for fish.

The invention belongs to the technical field of processing of rubber tires, and particularly relates to a radial truck tire air-tight layer component and a preparation process thereof. The radial truck tire air-tight layer component comprises the following substances in parts by mass: 100 parts of rubber substrate, 40-100 parts of reinforcing system, 1-10 parts of anti-aging system, 4.7-15 parts of vulcanization system, 0-20 parts of radiation crosslinking sensitizer and 0-50 parts of additive aid. The method comprises the following steps of: mixing other substances except a vulcanizing agent, discharging glue, and adding the vulcanizing agent for preparing a rubber compound; and rolling the prepared rubber compound to obtain an air-tight layer sheet of 3-5 millimeters in thickness, performing cobalt source radiation treatment in the air to obtain the radial truck tire air-tight layer component, wherein the radiation dosage of the air-tight layer sheet is 5-50 kGy. The air-tight layer component which is subjected to radiation pretreatment has the advantages of high Green strength, high structural size stability, high air tightness, and capability of improving the tire quality at a lower radiation dosage.

A sensor adapter is described for the noninvasive positioning of a sensor, especially of an electrochemical sensor, in a medium. The sensor adapter comprises an accommodating channel, in which the sensor can be positioned and the one end region of which is closed off by a semipermeable membrane. Moreover, the sensor adapter comprises a hollow cylindrical sealing structure, which is disposed within the accommodating channel coaxially with the longitudinal axis of the latter and with which the sensor can be disposed gas tight adjacent to the semipermeable membrane.

The invention discloses a construction method for carrying large-scale box girder by tire type gantry crane, which comprises the following steps: 1): running empty wagons to collimating position: 2) lifting the beam; 3) running the double machine linked lifting beam longitudinally; 4) turning the wheel group by 90 degrees; 5) running the double machine linked lifting beam transversely; 6) placing the beam into the target position. The construction method of the invention for carrying large-scale whole hole prefabricated box girder in box girder fabrication yard is advanced, safe, reliable and efficient, and meets the requirement of large tonnage box girder prefabrication in the sea-crossing bridge tidal flat area in Hangzhou Bay.

An automotive childproof safety lock control apparatus including a door latch which can hold a door of a vehicle in a closed position, a childproof safety lock unit which can be displaced to an unlocking state where the release of the door latch from a latching state is enabled by controlling an inner handle provided inside of the vehicle to open the door and a locking state where the release of the door latch from the latching state is disabled, and a drive unit which is linked to the childproof safety lock unit and the door latch so as to displace the childproof safety lock unit from the locking state to the unlocking state and release the door latch from the latching state when activated in one direction and to displace the childproof safety lock unit from the unlocking state to the locking state when activated in the other direction.

A headlight, in particular of the elliptical type for a motor vehicle, comprises a casing fixed on the vehicle; a protective cover glass closing off the casing; and an optical module which comprises a reflector, a lens and an intermediate fixed to the reflector and supporting the lens, the lens and intermediate constituting a rigid module. The invention provides a headlight of this type which also includes means for absorbing at least some of the energy produced during impact with a pedestrian, by displacing at least part of the optical module. The invention also provides a method of absorbing at least some of the energy arising from impact between a pedestrian and a vehicle headlight.

The invention relates to a zonal unequal-strength grouting reinforcement method suitable for the construction of a tunnel adjacent to a building. The method determines the range of the grouting reinforcement area according to the positional relationship between the tunnel and the building; and divides the grouting reinforcement area; Before the tunnel is excavated to the position close to the building, drill holes in the ground between the tunnel and the building and arrange multiple settlement monitoring points at the bottom of the building foundation; carry out unequal-strength grouting in the grouting reinforcement area and strengthen it in different areas ; After the grouting is completed, the excavation construction of the tunnel passing through the building is carried out, and the settlement monitoring point at the bottom of the building foundation is monitored in real time, and it is determined whether to carry out reinforcement grouting in the grouting reinforcement area according to the monitoring results; After the tunnel excavation is completed and the secondary lining is applied, the final effect of the sub-area grouting reinforcement of the tunnel adjacent to the construction of the building is judged by extracting the settlement data of the settlement monitoring points. The invention ensures uniform settlement and coordinated deformation of buildings during tunnel construction, and reduces reinforcement costs.

This invention discloses a boat and especially to the one suitable for sailing on ice, whose minimum water level and maximum water level left and right sides a quarter flow angle is between the twenty degrees and twenty six degrees to effectively decrease the resistance on the ice sailing and the push power needed by the boat motor and ensure the drainage volume of the boat.

The liquid ejection head comprises: a pressure chamber which accommodates liquid to be ejected through an ejection aperture; a diaphragm which constitutes a wall of the pressure chamber; a supply port which is formed as an opening section in a portion of the diaphragm; a supply flow channel which is provided between the supply port and the pressure chamber; and a common liquid chamber which accommodates the liquid to be supplied to the pressure chamber through the supply port and the supply flow channel and is arranged on a side of the diaphragm reverse to a side thereof adjacent to the pressure chamber, wherein the diaphragm has a tongue section, a portion of a perimeter of the tongue section being surrounded by the supply port, the tongue section constituting a portion of a wall of the supply flow channel, a portion of the diaphragm forming the tongue section having a laminated structure of an upper layer on the side adjacent to the common liquid chamber and a lower layer on the side adjacent to the pressure chamber, a coefficient of linear expansion α1 of the upper layer and a coefficient of linear expansion α2 of the lower layer satisfying a relationship of α1<α2, at least a portion of the tongue section being bendable in a direction to change a size of the supply flow channel.

The invention discloses a two-way bracing wire device, which belongs to a measuring device in water conservation, communication and rock and soil field. It includes a fixing end, suspending end, bracing wire body, two-way measuring box, automatic water filling device, liquid storage barrel and connecting pipe, the two-way measuring box has a water box, floating bracket, manual measuring meter and two-way bracing wire device; the water box, liquid storage barrel and the automatic liquid filling device are connected together through the connecting pipe, the bracing wire is leaded in through the fixed end to the suspending end through each measuring bracket, and the wire are winded on the heavy wheel. The invention changes the single measuring aim of the single way bracing wire device and static force level device, realizes two functions with one wire.

The invention provides a preheating control method for a multi-split air conditioner compressor and a multi-split device, and relates to the technical field of air conditioners. The preheating controlmethod for the multi-split air conditioner compressor comprises the steps that a starting-up command of a multi-split air conditioner is obtained; whether the preheating starting-up condition of thecompressor is met or not is judged according to the environment temperature and the initial operation parameter of the compressor; if yes, a preheating pipeline of the compressor is started; whether the preheating exit condition of the compressor is met or not is judged according to the real-time operation parameter of the compressor; and if yes, the preheating pipeline of the compressor is closed. According to the preheating control method for the multi-split air conditioner compressor, the exhaust side and the air suction side of the compressor are connected through the preheating pipeline,so that high-temperature refrigerants exhausted by the compressor directly enter the compressor to be subjected to secondary compressor to achieve the preheating purpose of the compressor, separationof the refrigerants and lubrication oil in an oil pool of the compressor is promoted accordingly, and the situation that the refrigerants take the lubrication oil away when evaporating and the compressor is damaged is avoided.

The invention discloses an intelligent control system for arch bridge erection and a control method thereof, and belongs to the technical field of arch bridge erection. The intelligent control system for arch bridge erection comprises stayed buckle cables on an arch rib, intelligent jacks, intelligent pump stations and a control cabinet, wherein the intelligent jacks are arranged on the two sides of the arch rib and connected with the stretching ends of the stayed buckle cables, the intelligent pump stations are connected with the intelligent jacks, and the control cabinet is connected with the intelligent pump stations; a stress measurement system and a displacement measurement system are arranged in the control cabinet and both connected with the intelligent pump stations; strain sensors are arranged in the arch rib and connected with the stress measurement system in the control cabinet. By means of the intelligent control system for arch bridge erection and the control method thereof, in the concrete pouring process of the arch rib of an arch bridge, arch rib deformation and stress can be intelligently controlled along with different time periods of poured concrete loading, it is ensured that the displacement of the arch crown is within a reasonable range, the instantaneous stress of steel tubes does not exceed the standard, and a reasonable initial line form is formed.

The invention discloses a connection node structure of fair-faced concrete prefabrication exterior wall hanging plates. The connection node structure comprises first connection angle iron, second connection angle iron and a support bolt; the first connection angle iron is fixed with an embedded base in a main body frame structure in a welding mode, the first connection angle iron and the second connection angle iron are each provided with a long-strip-shaped through hole, the support bolt is arranged on the first connection angle iron and used for supporting a lower bracket of the upper exterior wall hanging plates located above the support bolt, the first connection angle iron is fixedly connected with the second connection angle iron through a first connecting bolt, and the horizontal edge of the second connection angle iron is fixed with an embedded nut located in an upper bracket of the lower exterior wall hanging plate located below the second connection angle iron through a second connecting bolt. According to the connection node structure of the fair-faced concrete prefabrication exterior wall hanging plates, connection is convenient, and a certain displacement can be generated in the up and down direction and the left and right direction to prevent the exterior wall hanging plates from being damaged and disengaged when the connection node structure bears too large loads.

A piece of seating furniture, particularly a chair with a resilient frame which, from the side view, is substantially configured Z-shaped and which includes an upper part of the frame, two lower parts of the frame and two middle parts of the frame, each connecting the lower part of the frame with the upper part of the frame. The middle parts of the frame each reach from the respective lower part of the frame in the rear area of a seat surface upwards at an angle to the upper part of the frame in the front area of the seat surface. The distance of the middle parts of the frame to one another at the upper part of the frame is up to a maximum of half, preferably up to a maximum of one third of the width of the seat surface in the front area. Thus, the piece of seating furniture which is particularly easy to stack, enables a large legroom for a person sitting on the piece of seating furniture and wherein the seat surface can be rocked towards the left and the right.