13results about How to "Wide range adjustment" patented technology

The invention discloses a building curtain wall three-dimensional interlayer combination displacement deformation performance detection device, which comprises a base, a top pressing mechanism and an impact mechanism, and is characterized in that the base is provided with a mounting rack, and two side edges of the mounting rack are respectively provided with a pressing plate and a supporting plate which are used for clamping a curtain wall test piece up and down; the top pressing mechanism comprises a mounting disc and a top block used for abutting against a curtain wall test piece for testing, the mounting disc can be rotatably and adjustably arranged on the base, the top block is mounted on the mounting disc, and the top block can lift up and down and can be adjusted in the radial direction of the mounting disc; the impact mechanism comprises a translation plate, a connecting frame, a winding roller and an impact block, the translation plate can be arranged at the upper end of the mounting frame in a horizontal linear movement adjusting mode, the connecting frame can be arranged below the translation plate in a vertical lifting adjusting mode, the winding roller is rotationally arranged on the connecting frame, a rope is arranged on the winding roller, and the impact block is connected to the rope. According to the invention, test points can be flexibly adjusted, different positions of the curtain wall test piece can be tested, and the accuracy of detection data can be better ensured.

A chair with a waist rest adjusting device is characterized in that an adjusting bin is arranged in a chair seat, a waist rest is installed at the upper end of a supporting rod, the lower end of the supporting rod is connected with an adjusting rod, the adjusting rod extends into the adjusting bin and is connected with a sliding block, and when the waist rest needs to be adjusted, a lead screw is driven by a driver to rotate, and the lead screw drives the sliding block to move in the setting direction of the adjusting bin through an adjusting nut; therefore, the supporting rod and the waist rest are sequentially driven to move, and adjustment is achieved. The chair with the waist rest adjusting device is stable in adjustment, high in precision and capable of effectively ensuring the riding comfort, reducing the cost and prolonging the service life.

The utility model discloses a high-precision intelligent integrated holder, which relates to the technical field of holders and comprises a mounting plate. An orientation rotating frame is connected to the mounted bearing of the mounting disc in a matched mode, a pitching angle adjusting frame is connected to the mounted bearing of the orientation rotating frame in a matched mode, and an adjusting frame is connected to the mounted bearing of the pitching angle adjusting frame in a matched mode; a camera is fixed on the adjusting frame through a bolt; according to the utility model, the orientation rotating frame rotates on the mounting disc, so that the shooting direction is convenient to adjust, the pitching angle adjusting frame rotates on the orientation rotating frame and is matched with the rotation of the adjusting frame on the pitching angle adjusting frame, so that the pitching angle and the inclination degree can be adjusted, the shooting can be adjusted in a larger range, and the precision is higher; influences of video recording of the camera are transmitted to the controller through the plug, and a target is recorded and captured, so that the first driving motor, the second driving motor and the third driving motor are controlled.

The invention relates to a trace sand blasting generator, a control circuit, a control method and an experimental method. The trace sand blasting generator is composed of a sand blasting tank, a sand blasting tank cover buckled on the sand blasting tank, an exhaust pipe arranged in the sand blasting tank in parallel along the axis and communicated with an exhaust port, a pressurizing pipe communicated with an air inlet and a sand outlet valve, an exhaust valve connected with the exhaust port through a hose, a gas-sand mixing channel communicated with the air inlet, and a sand discharging port connected with the sand outlet valve. The sand outlet is connected with the sand blasting tank through a sand discharging opening, the vibrator is arranged on the outer wall of the sand blasting tank, and the weight sensor is arranged at the bottom of the sand blasting tank and used for detecting the weight of the sand blasting tank in real time.

The invention discloses a fuel oil combined atomization device applied to a small-size high-temperature-rise combustion chamber, and relates to the technical field of aero-engines, the device comprises a first-stage axial swirler, a second-stage axial swirler and a centrifugal nozzle, the first-stage axial swirler and the second-stage axial swirler are coaxially installed on the head portion of a flame tube, and the centrifugal nozzle is coaxially installed on the head portion of the flame tube. The centrifugal nozzle is located in the first-stage axial cyclone, a venturi tube is further arranged between the second-stage axial cyclone and the first-stage axial cyclone, and a plurality of first oil spraying holes and second oil spraying holes are formed in the circumferential outer wall of the venturi tube. Fuel oil sprayed out of the first oil spraying hole and the second oil spraying hole can be atomized through air passing through the second-stage axial swirler. According to the invention, a partitioned and pressure-divided oil supply mode is adopted, the requirements of small oil supply flow under the working conditions of slow running and the like and large oil supply flow under the maximum design working conditions of climbing and the like are considered, and meanwhile, the requirements of efficient combustion on fuel oil atomization quality under different working conditions are met.

The utility model relates to a kind of material transfer mechanism and paste auxiliary material pressure maintaining film tearing machine.It includes: support frame, the upper end of support frame is connected with XZ moving mechanism, XZ moving mechanism is connected with rotating mechanism, rotating mechanism is connected with carrier plate and drives carrier plate rotation;The lower end of carrier plate two sides is equipped with connecting hole, and is connected with adjusting piece by connecting piece, the middle part of adjusting piece is equipped with moving slot, the one end of connecting piece passes through moving slot and inserts connecting hole and is connected with carrier plate, adjusting piece is connected with suction nozzle assembly by moving slot, suction nozzle assembly includes suction nozzle, the upper of suction nozzle is equipped with threaded rod, threaded rod is connected with two fixed nuts by screw thread, the upper end of threaded rod passes through moving slot, two fixed nuts are located adjusting piece two sides respectively and adjusting piece clamping.

The invention discloses a UWB fusion positioning method and device in underground pipe gallery chamber sub-scenes, and the method comprises the steps: selecting a fingerprint reference point according to the field environment of a pipe gallery, carrying out the channel estimation of a UWB signal, obtaining the channel pulse response of the UWB signal, carrying out the peak detection, storing a plurality of peak values with the maximum power in a vector, and enabling the peak values to serve as fingerprint information, storing the position coordinates and the fingerprint information of all the reference point locations as an RSS fingerprint database; acquiring a channel pulse response between the UWB base station and the terminal in real time, performing peak detection, and acquiring a fingerprint of the current terminal; traversing the RSS fingerprint database to find a fingerprint which is optimally matched with the fingerprint of the current terminal, and taking a corresponding position coordinate as an RSS fingerprint positioning result; and performing Kalman filtering fusion correction on the RSS fingerprint positioning result and the reserved TOA positioning result to obtain a final positioning result. The precision is effectively improved, the anti-interference performance is enhanced, the deployment management cost is reduced, and the universality of a positioning scheme is improved.

The invention belongs to the technical field of semiconductor transfer, and discloses a transfer device and vacuum treatment equipment. The transfer device comprises a bearing table, a driving assembly and a plurality of trays. The trays are used for bearing workpieces, each tray is movably connected to the bearing table through an adjusting assembly, and the multiple adjusting assemblies are used for driving the multiple trays to move in different directions; the driving assembly is arranged on the bearing table and connected with the adjusting assemblies so as to drive the adjusting assemblies to act in different directions at the same time. When the transfer device is used, the orientation and spacing adjustment of a plurality of workpieces can be realized only by matching one group of driving assemblies with a plurality of adjusting assemblies, so that the complexity of the whole structure is effectively reduced, and meanwhile, the reduction of the cost for realizing the orientation and spacing adjustment of the workpieces is also facilitated.

The application provides a wide-range adjustable absorption heat pump, and relates to the field of waste heat recovery heating. The application solves the problems of poor solution flow, unimprovable load, and unsatisfied heating demand at the beginning and end of the heating period, and adopts the following scheme: a condenser is internally provided with a first water inlet and a first water outlet, a bypass valve is connected between the first water inlet and the first water outlet, the bypass valve is provided with a flow adjusting part, and the flow adjusting part is used for adjusting the opening degree of the bypass valve; an evaporator is internally provided with a waste heat water inlet and a waste heat water outlet, and is used for absorbing external waste heat; the top of the evaporator is connected to the top of an absorber through a gaseous refrigerant water pipeline; the absorber is internally provided with a second water inlet and a second water outlet, and the lower part of the absorber is connected to the upper part of a generator through a dilute solution pipeline; and the generator is heated by an external heat source to heat internal solution to boiling, and water vapor is generated. The technical scheme of the application can realize wide-range and accurate adjustment.

The invention discloses a flow self-adaptive variable adjusting pump, which relates to the technical field of adjusting pumps, and comprises a shell, a cylinder body is rotatably arranged in the shell, and a plurality of groups of plunger cavities are formed in the cylinder body in a circumferential array; a plurality of groups of plunger bodies in one-to-one correspondence with the plunger cavities are hinged to one end, facing the cylinder body, of the swash plate, and the plunger bodies are inserted into the plunger cavities in a sliding manner; a base is further fixedly arranged at the bottom of the shell, a water inlet groove and a water outlet groove are symmetrically formed in the base, and a water inlet communicated with the water inlet groove and a water outlet communicated with the water outlet groove are formed in the base. The device further comprises a rotating module and an adjusting module, the rotating module is used for driving the swash plate to rotate, and the adjusting module is used for adjusting the inclination angle of the swash plate; under the condition that the swash plate is kept constant, the effect of flow adjustment can still be achieved, when the swash plate is matched with a rotating speed adjustment mode, flow adjustment in a larger range can be achieved, and the adjustment precision and stability are higher.

This invention discloses a modular missile wing connection structure with adjustable position. The structure includes a missile body to which wings are connected; four elongated rectangular planes of equal thickness are arranged at equal angles along the axial direction of the missile body, and several equally spaced rectangular grooves are formed on the elongated rectangular planes along their axial direction; a wing flange is provided at the wing root of each wing, and several equally spaced rectangular locking blocks are provided at the bottom of the wing flange; the rectangular locking blocks cooperate with the rectangular grooves to connect several wings to the missile body; the number of rectangular grooves is greater than the number of rectangular locking blocks, and the relative position of the wings is adjusted by adjusting the insertion position of the rectangular locking blocks; several wings are fixed to the missile body by binding circular retaining rings. The above-mentioned wing connection structure is easy to assemble and disassemble and is adjustable, and can adapt to different combat mission requirements.

Disclosed is an acupuncture device including a needle tube and a base. The needle tube includes an outer sleeve having a first through-hole, an inner sleeve having a second through-hole, at least a portion of which is accommodated in the first through-hole, the inner sleeve being slidable and rotatable with respect to the outer sleeve, and a spherical adjusting member coupled to the outer sleeve at a side opposite to the side where the inner sleeve is located and having a third through-hole. The base includes a horizontal portion having a plate shape with a circular hole in the center thereof and coupled to the spherical adjusting member through the circular hole, and a vertical portion extending downward from a distal end of the horizontal portion to define a space for accommodating at least a portion of the spherical adjusting member together with the horizontal portion. An inner wall of the vertical portion includes a vertical wall connected to the horizontal portion and an inclined wall extending from the vertical wall in a direction away from the spherical adjusting member. The space includes a cut corner portion adjacent to the inclined wall. The device can be used for an electroacupuncture or general acupuncture clinical randomized controlled trial.

The invention discloses a high-power synchronous motor excitation device and a control method. The high-power synchronous motor excitation device comprises a multi-pulse excitation transformer, a plurality of three-phase PWM rectifiers, a field suppression circuit and a multi-phase interleaved parallel bidirectional DC-DC converter, wherein the direct current sides of the three-phase PWM rectifiers are connected in parallel; aC side LCL filters of the three-phase PWM rectifiers are connected with windings of the secondary side of the excitation transformer in a one-to-one correspondence manner, and DC sides of the three-phase PWM rectifiers are connected in parallel to form a DC bus; the bidirectional DC-DC converter can quickly, accurately and stably adjust direct-current excitation in a wide range, and provides additional excitation damping to control and suppress low-frequency oscillation of a power system; positive damping electromagnetic torque is provided by adjusting terminal voltage of the synchronous motor, low-frequency oscillation of the power system is suppressed, and stability of the power system is improved. Energy stored by the magnet exciting coil is directly fed back to a power grid through the bidirectional DC-DC converter and the PWM rectifier, and the field suppression circuit is started, so that efficient, rapid and reliable field suppression is realized.