46results about How to "Good adjustment stability" patented technology

The invention provides a reinforcing steel formwork supporting rack for a thin-walled hollow high pier and a construction method. The reinforcing steel formwork supporting rack comprises a reinforcing steel formwork supporting framework and an operation platform, wherein the reinforcing steel formwork supporting framework comprises vertical columns, a transverse bridge direction cross rod and a longitudinal bridge direction cross rod, wheel discs are arranged at the bottom ends of the vertical columns, the bottom ends of the vertical columns are in welded connection with the wheel discs, the wheel discs are fixedly connected with rollover purlins of set-shaped steel formworks through bolts, connecting steel plates are welded at the top ends of the vertical columns and connected with the longitudinal bridge direction cross rod at the top through bolts, and the transverse bridge direction cross rod is perpendicular to the longitudinal bridge direction cross rod, erected on the top surface of the longitudinal bridge direction cross rod and connected with the longitudinal bridge direction cross rod though the bolts; and operation platform comprises triangular reinforcing steel brackets and operation platform stirrups, vertical supports of the triangular reinforcing steel brackets are attached to the tops of the outer walls of the vertical rods and are in welded connection, the operation platform stirrups are uniformly distributed, and the end parts are undertook transversely on the triangular reinforcing steel brackets. The reinforcing steel formwork supporting rack for the thin-walled hollow high pier and the construction method have the advantages that thickness of a protective layer is easy to control, safety and reliability are achieved, construction cost is saved and the like.

The invention discloses a faucet which comprises a shell. An assembling opening is communicated to a flowing channel between a water inlet connecting pipe opening and a water outlet, the assembling opening is provided with a control mechanism used for adjusting and controlling the flow of water flowing from the water inlet connecting pipe opening to the water outlet, the control mechanism comprises a fixed sheet, a movable sheet, a fastening piece and a valve rod, wherein the fixed sheet is arranged at the bottom end of an inner cavity of the assembling opening, covers the flowing channel between the water inlet connecting pipe opening and the water outlet and is used for forming a fixed flowing channel, the movable sheet presses and covers the fixed sheet in a face attachment sealing manner, is used for forming a movable flowing channel and is in rotary fit with the fixed flowing channel on the fixed sheet to form flowing channels in different radial size for controlling the water flow, the fastening piece presses and covers the movable sheet in a face attachment sealing manner,, is used for sealing the assembling opening, and is used for fixing and positioning the movable sheetand the fixed sheet in the axial direction, and the valve rod is located in a cavity defined by the fastening piece and the movable sheet, is connected with the movable sheet, and is used for controlling rotation adjustment of the movable sheet and limiting radial movement of the movable sheet; and the outwards-extending end of the valve rod is provided with a driving mechanism used for driving the valve rod to rotate.

The invention discloses an efficient heat supply system arranged in a secondary reheating unit. The efficient heat supply system comprises a small steam turbine, a clutch gear box, a motor/generator and an induced draft fan; a rotating shaft of the small steam turbine is connected with the clutch gear box, one side of the clutch gear box is connected with the small steam turbine, and the other side of the clutch gear box is connected with a rotating shaft of the motor/generator; and the motor/generator is connected with the induced draft fan, the small steam turbine and the clutch gear box arecoaxially connected with the motor/generator and the induced draft fan, the motor/generator is electrically connected with a station service bus, and a steam exhaust port of the small steam turbine is connected with the heat supply steam manifold. According to the efficient heat supply system arranged in the secondary reheating unit, the problem of insufficient reheat steam temperature can be relieved, and the reheat steam temperature regulation stability is facilitated; and meanwhile, heat is supplied to the outside, parameters of heat supply system meet the use requirements of other parts of equipment of a power plant, redundant steam can be directly reused, high-quality steam is extruded to do work, and the utilization rate of heat energy is increased.

The invention relates to the field of college furniture, in particular to an anti-collision head type bed for schools. The bed comprises a bed frame, a bed plate is arranged on the bed frame, the bedplate comprises a fixed plate and a rotating plate, a rotating assembly used for driving the rotating plate to rotate is arranged on the bed frame, and a mattress pressing assembly used for pressing amattress is further arranged on the bed frame; the bed has the effect of reducing the situation that the head of a user touches the bed edge.

The invention relates to a lightweight explosion-proof security and protection monitoring camera. The lightweight explosion-proof security and protection monitoring camera comprises a camera and a mounting shell, wherein the front side of the lower surface of the camera is in universal rotary connection with the inner bottom of the mounting shell through a universal seat; a supporting spring is arranged on the inner bottom surface of the mounting shell; a first elastic air bag, a second elastic air bag and a third elastic air bag are arranged on the upper surface, the left side surface and theright side surface of the tail of the camera respectively; a first micro air pump and a second micro air pump are arranged in the mounting shell; the second elastic air bag and the third elastic airbag are filled with inert gas and communicated through two parallel pipelines, and two third micro air pumps opposite in air exhaust directions are arranged on the two pipelines. By means of the mode,a metal frame for angle adjustment is omitted for the explosion-proof camera, the overall weight is greatly reduced, the adjustment stability is good, the angle can be finely adjusted, the overall structure is simple, the cost is low, the integrity is good, and meanwhile the shock absorption effect is achieved.

The invention discloses a telescopic anchor rod. The telescopic anchor rod comprises a first anchor rod and a second anchor rod which are rotationally connected through threads; a grout stop plug, a pressure bearing gasket and a grouting head are sequentially arranged at the top end of the first anchor rod from bottom to top and fixedly connected through a nut at the top; the bottom end of the second anchor rod is connected with a drill bit; a spiral rod piece, a drive mechanism, a first blocking piece and a second blocking piece are arranged in a cavity of the first anchor rod and a cavity of the second anchor rod; the drive mechanism is arranged between the first anchor rod and the second anchor rod and connected with the first anchor rod and the second anchor rod through the spiral rod piece; the first blocking piece and the second blocking piece are arranged in the first anchor rod and the second anchor rod correspondingly; on the two sides of the drive mechanism, the top end of the spiral rod piece is connected with the pressure bearing gasket, and the bottom end of the spiral rod piece is connected with the second blocking piece; and the drive mechanism is provided with an open hole for containing the spiral rod piece. The telescopic anchor rod is simple in structure, firm, reliable, convenient and fast to operate, adjustable in length, good in adjusting stability, high in tensile strength, wide in application range and low in cost.

The invention relates to a method and system for testing an automobile hybrid power system, and belongs to the technical field of automobile testing. The method comprises the following steps: acquiring monitoring information corresponding to different heat dissipation schemes under the same acceleration starting test condition; calculating the heat dissipation coefficient variation amplitude corresponding to each heat dissipation scheme according to the heat dissipation coefficient information of the automobile heat dissipation system corresponding to each heat dissipation scheme; calculating the confidence coefficient of the heat dissipation coefficient information corresponding to each heat dissipation scheme according to the working condition efficiency coefficient information of the automobile hybrid power system corresponding to different heat dissipation schemes; calculating a reference heat dissipation gain value corresponding to each heat dissipation scheme and a rationality index of the heat dissipation gain coefficient adjustment sequence; taking the reference heat dissipation gain value with the maximum rationality index as the reference heat dissipation gain value corresponding to the target acceleration starting condition; and obtaining a heat dissipation gain coefficient adjustment optimization sequence corresponding to the target acceleration starting condition according to the heat dissipation gain coefficient adjustment reference sequence. The service life of the heat dissipation system is prolonged on the premise that the heat dissipation requirement is met.

The invention provides a pH value control device and method for a chemical combination tank for an EMD continuous leaching process, and relates to the field of industrial automatic control. The pH value control device comprises a PLC control system, an operation panel, four online pH instruments, three electromagnetic valves, a sampling pump and three regulating valves. The set pH control value, the sampling time interval and the control parameter of the chemical combination tank are input through the operation panel, a CPU module of the PLC control system obtains the current real-time pH value of the chemical combination tank through an analog quantity input module, then a control value is obtained through PID calculation and transmitted to the regulating valves through an analog quantity output module, the regulating valves control the opening degrees of the valves according to the control value, the slurrying feed quantity is controlled, and thus stable control over the pH value of the chemical combination tank is achieved. By adoption of the pH value control device and method for the chemical combination tank for the EMD continuous leaching process, online automatic pH value acquisition, actual pH value deviation compensation and pH target value correction can be achieved, and the pH value can be adjusted to the optimal range in the production process.

The invention provides a high-performance alkali-free liquid accelerator. The high-performance alkali-free liquid accelerator is prepared from the following raw materials in parts by weight: 450 partsof aluminum sulfate, 60-80 parts of magnesium sulfate, 5 parts of triethanolamine, 3 parts of sepiolite, 10 parts of diethanolamine and 472 parts of water. The defects of a traditional accelerator are overcome, and the comprehensive use performance of the accelerator is improved.

The invention relates to the technical field of liquid conveying equipment, in particular to a special liquid flow multi-position output control structure. The technical solution adopted by the present invention is: comprising a cylindrical control structure main body, the left side of the control structure main body is provided with an integrally formed engaging connecting column, and the center position of the left end face of the engaging connecting column is provided with a second engaging assembly column, The center position between the second engaging assembly column and the main body of the control structure is provided with a cylindrical first engaging assembly column, and the left center of the second engaging assembly column is provided with a cylindrical main input hole, and the right side of the main input hole is A cylindrical main output hole is provided, and a flow control groove is arranged on the outer cylindrical surface of the main body of the control structure, and first liquid delivery holes and second liquid delivery holes are alternately arranged on the flow control grooves. The invention has the advantages of more convenience in use, better flow regulation stability, more convenient assembly operation, higher assembly efficiency, lower production cost and better effect of controlling liquid flow.

The invention discloses a textile fabric performance testing machine, and belongs to the technical field of textile. The testing machine comprises a rack; a fan is installed on the left side of the upper surface of the rack and used for extracting external air to detect the air permeability of the textile fabric, an air outlet of the fan communicates with an air conveying pipe fixed to the rack through a fixing plate, and the air conveying pipe communicates with a plurality of first communicating hoses. An adjustment mechanism is arranged to cooperate with a testing mechanism, a sealing insertion plate matches a sealing insertion groove to clamp the edge of the cloth into the sealing insertion groove, a pressing mechanism is used to fix the cloth, stable proceeding of testing operation is guaranteed, a plurality of adjusting mechanisms are used with a plurality of partition plates for use, ventilation capacity testing can be conducted on different kinds of cloth at the same time, the position of an adjusting plate can be adjusted, the air volume can be adjusted, different test requirements can be met, the structure is simple, and operation is convenient.