57results about How to "Large torque" patented technology

The utility model discloses a rim charge rolling and automatic discharging device of a splitting machine. The rim charge rolling and automatic discharging device comprises a supporting plate; the winding assembly is arranged on the supporting plate and comprises a first driving part, a transmission shaft and an air expansion shaft, the transmission shaft and the air expansion shaft are coaxially arranged, the transmission shaft is connected with the air expansion shaft, and the first driving part drives the transmission shaft to rotate; and the material returning assembly is arranged on the supporting plate and comprises a second driving part and a push plate, the push plate is arranged on the air expansion shaft, and the second driving part drives the push plate to axially move outwards along the surface of the air expansion shaft. Winding and material returning are combined, the air expansion shaft is of a split structure, the transmission shaft and the air expansion shaft body are connected through the bolt, transmitted torque is larger, machining, installation and maintenance are convenient, the overall structure is simple, and working efficiency is improved.

The utility model relates to the field of engineering machinery, and discloses a cleaning device for a rust removal operation machine and the rust removal operation machine.The cleaning device comprises a mounting support, a rotary support, a cleaning mechanism and a rotary speed reducing mechanism, the mounting support is used for being connected with the head of a main arm frame of the rust removal operation machine, the rotary support is mounted on the mounting support, and the cleaning mechanism is mounted on the rotary speed reducing mechanism; the cleaning mechanism comprises a cleaning disc connected to the rotary support through a cleaning connecting rod, and the rotary speed reducing mechanism is arranged on the mounting support and used for driving the rotary support to drive the cleaning disc to rotate so as to adjust the inclination angle of the cleaning disc. According to the cleaning device for the rust removal operation machine and the rust removal operation machine, accurate adjustment of the inclination angle of the cleaning disc can be achieved, so that a basis is provided for accurate control over rust removal cleaning operation, and the rust removal effect is improved.

The utility model discloses pile dismounting equipment which comprises a dismounting and hoisting platform, a vibratory hammer, a clamping device and a fluid jetting device, the vibratory hammer is connected with the dismounting and hoisting platform, and the output end of the vibratory hammer is connected with the top end of a cylindrical pile; the clamping device is connected with the dismounting and hoisting platform and is used for clamping the cylindrical pile; the fluid jetting device is connected with the dismounting and hoisting platform and movably arranged on the dismounting and hoisting platform in the axial direction of the cylindrical pile, and the fluid jetting device is used for jetting fluid to break through soil around the cylindrical pile. According to the pile disassembling equipment, the vibratory hammer is arranged at the top of the cylindrical pile to vibrate and hit the cylindrical pile, and the fluid jetting device is arranged to impact soil around the cylindrical pile, so that the friction force between a seabed and the cylindrical pile can be reduced, and the cylindrical pile can be conveniently pulled out of the seabed; the dismounting efficiency of the cylindrical pile is improved, the dismounting cost of the cylindrical pile is reduced, and the safety in the dismounting process of the cylindrical pile is improved.

The utility model relates to the technical field of motors, particularly provides a motor rotor, a motor and a vehicle, and aims to solve the problem that the conventional motor rotor is relatively serious in vibration and noise in a high-speed operation process. In order to achieve the purpose, the motor rotor comprises an iron core, the iron core comprises a plurality of punching sheets, the plurality of punching sheets are laminated, the punching sheets are provided with a plurality of magnetic steel groove groups, the plurality of magnetic steel groove groups are uniformly arranged at intervals along the circumferential direction of the punching sheets, and the magnetic steel groove groups are asymmetrical along the radiuses of the punching sheets. The magnetic steel groove group is of an asymmetric structure, so that the magnetic circuit of the motor rotor is improved, the resonance of the motor rotor can be optimized, the NVH characteristic of the motor in the operation process is improved, and the torque ripple and the radial electromagnetic force are reduced.

The invention relates to the technical field of conductive connecting devices, in particular to a contact piece, a contact assembly and a connector. The contact piece comprises a barrel, at least one row of contact reeds are arranged on the barrel wall of the barrel, the contact reeds overhang around the axis of the barrel, the tail ends of the contact reeds are arranged at included angles with the axial direction of the barrel, the contact reeds in the same row are arranged at intervals in the axial direction of the barrel, and seams penetrating through the barrel wall are formed in the two sides of the side-by-side direction of the contact reeds. The contact reed is provided with a contact part which is used for forming conductive contact when the contact piece is plugged with an adaptive conductor, and the axial direction of the cylinder body is consistent with the plugging direction of the contact piece. When the contact piece and the adaptive conductor are plugged along the axial direction of the cylinder body, the adaptive conductor can be contacted with the contact spring sheets in sequence from one end of the cylinder body, and not all the contact spring sheets are contacted with the adaptive conductor at the same time, so that the moment in the plugging process is relatively soft, a relatively large moment does not need to be kept all the time, the resistance sense is small, and labor-saving operation is facilitated.

The present invention discloses a universal rocker switching valve, which comprises a body, which is provided with a water inlet and a water outlet cavity; a water dividing plate, which is fixedly arranged in the water outlet cavity, the water dividing plate is provided with a movable hole, at least two water inlet channels and two water outlet channels, a ratchet C is arranged on the inner wall of the movable hole, and an actuating cavity is also arranged below the movable hole; a switching plate, which is movably arranged on the water dividing plate and is coaxial with the movable hole to control the on and off of the water inlet channel, and a ratchet A is arranged below the middle of the switching plate; an actuating member, which is slidingly sealed and arranged in the movable hole, and a ratchet B is arranged on the upper end of the actuating member; a first reset member, which is pre-tightened and arranged above the switching plate; the ratchet A, ratchet B and ratchet C constitute an intermittent rotation switching mechanism; a rocker, which is movably arranged in the actuating cavity; the universal rocker switching valve can realize the switching of waterway functions by shaking the rocker in any direction.

This invention discloses a spinless multi-roller cone continuously variable transmission (CVT) unit, aiming to provide a CVT unit that avoids spin efficiency loss within its gear ratio range, is easy to manufacture, has a long lifespan, and provides high torque. Its key technical features are: the transmission unit consists of a spindle, input sleeve, output sleeve, input roller, output roller, force-transmitting cone, cone mounting shaft, and speed-regulating sleeve. Power is input through the input sleeve, passing sequentially through the input roller, force-transmitting cone, and output roller, and finally output through the output sleeve. A speed-regulating sleeve is arranged on the spindle, hinged to one end of the cone mounting shaft. During speed adjustment, the orientation of the force-transmitting roller is changed by moving the speed-regulating sleeve, and other traction elements follow and maintain contact. The working surface of the force-transmitting cone is a standard conical surface, while the input and output rollers are convex curved surfaces. This invention can be used to replace the transmission unit in a traction-type CVT, enabling the transmission to achieve spinless, efficient transmission with excellent overall performance.

The utility model discloses a combined permanent magnet self-inductance generator motor which is composed of a disc-type stator, a radial stator, a permanent magnet rotor, a power switch control system and a power generation switch control system. The disc type stator generates clockwise torque force on the permanent magnet rotor in the axial magnetic field direction, and the radial stator also generates clockwise torque force on the permanent magnet rotor in the radial magnetic field direction. And electric energy generated by the disc-type stator winding iron core, the radial stator winding iron core and the winding opposite to the permanent magnet rotor due to power-off self-inductance is guided to a battery or other electric equipment by closing the solid-state relay II. Therefore, compared with a single disc type or radial type permanent magnet self-inductance generator motor, the permanent magnet rotor has larger torque force, and the stator winding converts magnetic field energy into electric energy to be output, so that the permanent magnet energy is higher in utilization rate. If the device is installed on an electric automobile, the cruising ability of the electric automobile is greatly improved, and the battery consumption is reduced.

The present invention relates to the technical field of debugging of optical mechanical sensor components, and discloses a debugging device of an optical mechanical sensor component and a method of using the same, comprising a sensor fixing plate and a base, wherein an optical mechanical sensor debugging component is arranged on the sensor fixing plate, and the optical mechanical sensor debugging component is used to control multiple angles of the optical mechanical sensor, and an optical mechanical sensor debugging auxiliary component is arranged on the base, and the optical mechanical sensor debugging auxiliary component is used to assist in completing the debugging of the optical mechanical sensor component. The debugging device of the optical mechanical sensor component, the debugging device of the optical mechanical sensor component and the method of using the same, can clamp the optical mechanical sensor component by manually rotating a corresponding knob during use, and during the process, due to the deceleration property of a first worm and a first worm wheel, the movement of the final hook-shaped clamping block can have a large torque, which is sufficient to firmly fix the optical mechanical sensor component, and the clamping process is easy and effortless.

The novel corrosion-resistant buried stainless steel gate valve comprises a valve body, a valve rod is longitudinally arranged in the valve body in a penetrating mode, a flow intercepting plate used for controlling a channel to be opened and closed is fixed to the valve rod, the top end of the valve rod penetrates through the valve body, and the side face of the flow intercepting plate is of a cambered surface structure. According to the utility model, the telescopic structures of the sleeve and the sliding rod can be freely adjusted along with the settlement or the upheaval of the ground, the position of the valve body does not need to be frequently adjusted, and when in use, the sliding rod is firstly pulled into the groove, and then the sliding rod is pulled into the groove; further rotation is carried out to push into the deep part of the groove for height fixation; the grip is arranged on the peripheral side of the wheel disc to increase torque, meanwhile, an operator can stand on the ground for operation, and labor is saved when the gate valve is opened and closed. And the gasket is arranged in the compression ring, and the closure plate is matched with the gasket, so that the sealing performance of the valve body is more reliable.

The utility model discloses a hard open top container lock rod structure which comprises a lock rod, extension rods are movably connected to the two ends of the lock rod, a fixing base is arranged on the side wall of the lock rod, a handle is connected to the fixing base, the outer side end of the handle is rotationally connected with a rotating block, a connecting groove is formed in the position, close to the outer side end, of the side wall of the handle, and the connecting groove is connected with the handle. A connecting block is arranged at the side end of the rotating block, and the connecting groove is connected with the connecting block in a clamped mode. In conclusion, the container door opener overcomes the defects in the prior art, is reasonable in design, reduces the force required for opening the container door by prolonging the length of the handle and utilizing the lever principle, and has higher social use value and application prospect.

The utility model relates to the technical field of stacker-reclaimers, and discloses a mounting structure. The mounting structure comprises a base station, a connecting pipe is installed above the base station in a penetrating mode, a connecting bearing is installed on the outer side of the connecting pipe in a penetrating mode, a limiting bearing is fixedly installed at the top end of the connecting pipe, a transmission frame is fixedly installed on the outer side of the connecting bearing, and a base is fixedly installed above the transmission frame; the transmission frame can support the base, the stacker-reclaimer is installed above the transmission frame through the base, the transmission frame is rotationally connected with the connecting pipe through the connecting bearing, after installation is completed, the transmission frame can support the stacker-reclaimer, the stacker-reclaimer does not make direct contact with the base, and therefore the stacker-reclaimer is not prone to falling off. The gravity of the stacker-reclaimer can be transmitted to the driving wheel through the transmission frame, so that the friction force between the stacker-reclaimer and the base station can be reduced, the abrasion of the contact part of the stacker-reclaimer and the base station is avoided, and the rotation of the stacker-reclaimer is facilitated.

A rotating sprinkler head, relating to the field of irrigation equipment, includes a base, a spraying element, vanes, and a positioning unit. The base is used to connect a water pipe and has a chamber with a water outlet. The spraying element is disposed on the base and connected to the water outlet. The spraying element includes an annular wall surrounding the water outlet, with a through groove formed within the annular wall. A spraying section is provided at the upper part of the through groove, and a positioning section is provided at the top of the spraying section. The spraying section has a spray channel communicating with the through groove, at least a portion of which extends circumferentially around the spraying section. The vanes are connected to one end of the spray channel. The positioning unit is connected to the base and used to position the spraying element on the base. When water is sprayed from the spray channel, it simultaneously drives the spraying element to rotate along the first circumferential direction. The vanes are used to increase the lever arm of the spraying element in contact with the water, thereby increasing the torque to generate greater rotational power and achieving a higher rotational speed under the same water pressure for more uniform spraying.

The present invention discloses a power-assisted power generation device, which belongs to the technical field of mechanical power generation, and comprises a mounting platform, wherein a bracket and a slide slot are arranged on the mounting platform, wherein the bracket is located at both sides of the slide slot, wherein a power wheel is arranged on the bracket, wherein a push block is arranged on the slide slot, wherein the push block is connected with a feeding device, wherein the push block is provided with an arc track, and wherein the arc track cooperates with the power wheel; wherein the power wheel comprises a hub and an outer ring, wherein the hub is arranged as a hollow structure, wherein a fixedly mounted transmission shaft is arranged on the hub, wherein the transmission shaft is rotationally connected with a workbench, wherein an even number of evenly distributed arc-shaped spokes are arranged between the hub and the outer ring for connection, wherein the arc-shaped spokes are arranged as a design corresponding to each other in pairs, wherein a slideway is arranged in the arc-shaped spokes, wherein the slideway is communicated with the hub, wherein a freely slidable counterweight block is arranged in the slideway, and a push rod connection is arranged between the counterweight blocks in the corresponding spokes.

The application discloses a robot and a transmission mechanism thereof. The transmission mechanism comprises two transmission members capable of rotating around their own axes, each comprising a pulley segment and an eccentric shaft segment eccentrically arranged relative to the pulley segment, the eccentric shaft segment being connected to the pulley segment, and the two transmission members being arranged at intervals; a synchronizing member connected to the two pulley segments; and a connecting rod rotatably connected to the two eccentric shaft segments. When one of the two transmission members rotates, the two pulley segments are driven by the synchronizing member, and the two eccentric shaft segments are driven by the connecting rod, thereby driving the other transmission member to rotate. In this way, the transmission mechanism provided by the application can transmit greater torque, has higher rigidity, and has improved transmission precision.

The utility model relates to the technical field of cross-flow fan installation, and discloses an air conditioner internal installation structure of a cross-flow fan, which comprises a cylinder body, the right end of the cylinder body is fixedly connected with a circular ring, the periphery of the right side of the circular ring is fixedly connected with a plurality of limiting blocks at equal intervals, and the right side of the circular ring is fixedly connected with a hollow disc. A plurality of limiting grooves are fixedly connected to the periphery of the left side of the hollow disc at equal intervals, a connecting shaft is fixedly connected to the middle of the inner side of the hollow disc, the left end of the connecting shaft penetrates through the circular ring, a magnetic ring is arranged in the hollow disc, a stator body is arranged in the magnetic ring, and the stator body is connected with the interior of the magnetic ring in a magnetic attraction mode; an inner rotor is arranged on the outer side of the stator body. According to the utility model, the connecting shaft is inserted into the shaft groove, at the moment, the stator body completely enters the hollow disc, and as the magnetic ring is in magnetic attraction connection with the outer side of the stator body, the dismounting and mounting work can be quickly carried out, and meanwhile, the moment of force of the stator body can be increased so as to reduce the generation of noise.

The invention provides a plunger type static pressure clutch which comprises a static pressure clutch part which comprises a driving end, a transmission end and a driven end with an inner curved surface. A plunger hole and an oil discharge narrow slit are formed in the cavity wall of the driving end, and a pressure oil duct is formed in the oil supply shaft in the cavity; the transmission end comprises an oil inlet disc, and a one-way valve is arranged on the oil inlet disc. The plunger is embedded in the plunger hole, and a pin roller is embedded in the plunger in a rolling mode. The inner cavity is divided into a first chamber and a second chamber by the oil trapping piston; the oil discharge narrow slit is arranged corresponding to the first chamber, and the second chamber is communicated with the pressure oil duct; the oil trapping piston is connected to the cavity through the piston spring. According to the clutch, the torque transmission requirement is met by using the clutch with lighter weight, meanwhile, the combination process of the clutch can be actively controlled, the combination pressure is smoothly increased, and violent impact in the separation and reunion process is avoided.

The utility model relates to an auxiliary handle for a wrench, which structurally comprises an extension handle and a fixing frame, the fixing frame is positioned at the front end of the extension handle, two retaining edges are arranged on one side of the fixing frame, the length direction of the retaining edges is consistent with that of the fixing frame, and a gap between the two retaining edges is used for placing the wrench. A limiting block is arranged at the junction of the fixing frame and the extension handle, the limiting block and the flanges are located on the same side of the fixing frame, and the limiting block right faces the gap between the two flanges. The thickness of the blocking edge is larger than that of the wrench, and the inner side face of the blocking edge inclines inwards. Or a groove is formed in the inner side surface of the flange and penetrates through the length direction of the whole flange. The fixing frame is simple in structure and convenient to use, the length of a force arm can be increased by directly placing a wrench on the fixing frame, and therefore large torque can be obtained, screwing of a threaded part is facilitated, and operation safety can be guaranteed.

The present invention discloses a rake and suction unit assembly, which is installed on the arm mechanism of a dredging robot. The rake and suction unit assembly comprises a rake and suction spiral mechanism and a coaxial linkage mechanism of the arm assembly arranged on both sides of the rake and suction spiral mechanism. Two ends of one side of the arm mechanism are rotatably connected to the two side positions of the rake and suction spiral mechanism through the coaxial linkage mechanism of the arm assembly respectively. The middle position of the top surface of the rake and suction spiral mechanism is rotatably connected to the piston end of the rake and suction head adjusting cylinder through the adjusting cylinder piston pin shaft. In view of the defects of existing equipment, the present invention designs a coaxially linked rake and suction unit assembly that can be adjusted with multiple degrees of freedom. The rake and suction spiral, the rake and suction spiral mechanism and the coaxial linkage mechanism of the arm assembly can make the rake and suction spiral move independently of each other according to the actual conditions in pipelines and culverts. While ensuring the dredging effect, the work efficiency is greatly improved, and there is no risk of hydraulic oil leakage. The present invention has good use effect and broad market prospects.

The present invention discloses a vibration mechanism, a receiver and a receiver assembly method. The receiver of the present invention comprises: a shell having an inner cavity formed therein; a sound film mechanism; a vibration mechanism, the vibration mechanism comprising an electromagnet unit and a permanent magnet; the electromagnet and the vibration plate are provided with matching fixing units, and the electromagnet unit and the vibration plate are fixedly connected through the fixing units. In the receiver of the present invention, the connection structure between the armature and the vibration plate is stable, avoiding the problem of sound distortion.

The utility model relates to a trunk lid hinge and a vehicle provided with the trunk lid hinge. The trunk lid hinge comprises a hinge support, a hinge base and a hinge cover, one end of the hinge arm is hinged to the first position of the hinge support, and the hinge arm is provided with a strip-shaped groove; one end of the torsion bar is hinged to the second position of the hinge support; the guide plate is arranged on one side of the hinge support, the lower edge of the guide plate comprises a first arc part, a connecting part and a second arc part which are sequentially connected, and the circle center of the first arc part is located at the first position; the radius of the first arc part is smaller than the distance from the first position to the second arc part or the minimum distance from the first position to the second arc part; the first end of the hinge connecting rod is hinged to the strip-shaped groove of the hinge arm, the second end of the hinge connecting rod is hinged to the other end of the torsion bar, and the hinge connecting rod can transmit the torque of the torsion bar to the hinge arm. The trunk lid can be completely opened under the condition that an external power source is not needed, and the manufacturing cost is reduced.

The present invention relates to a buckle strapping machine head for packaging, comprising a buckle servo drive unit connected to a main housing unit, a servo conveying strap unit, a strap tensioning unit, a buckle hopper unit, a belt guide door unit and a buckle module unit; the buckle servo drive unit can drive the buckle module unit to engage the buckle through the buckle servo motor of the buckle servo drive unit, thereby strapping the strap; the servo conveying strap unit is connected to a planetary reducer by a servo motor to drive the conveying belt wheel of the conveying strap to rotate forward and reversely, thereby completing the belt feeding and belt taking-up functions; the strap tensioning unit is driven by an air motor to drive the tensioning wheel to rotate, tighten the strap, and complete the tensioning function; the buckle hopper unit stores buckles and is provided with a pushing device to push the buckles into the buckle module unit; the belt guide door unit is a rotatable structure, and after rotation, it forms a strap conveying channel with the hopper unit and the lower end of the main housing unit. The present invention is stable and reliable to use.

The utility model provides an air guide structure and a parking air conditioner, and the air guide structure comprises a shifting part which is used for being rotationally connected to a machine shell; the air guide piece is used for being rotationally connected to the machine shell; the air guide piece is connected to the stirring piece in a sliding mode, and the stirring piece rotationally drives the air guide piece to swing. The air guide piece is connected to the shifting piece in a sliding mode, the shifting piece can be exposed to be operated by a user or arranged at the position closer to the user, the posture of the shifting piece can enable the user to know the air supply angle of the air guide piece, and the shifting piece can increase the torque for rotating the air guide piece; a user can conveniently adjust the air supply angle of the air guide piece to an ideal state at a time, and operation is convenient.

The high-efficiency hand crank window opener comprises a mounting seat and a driving box, a rotating rod is rotationally connected to the middle of the mounting seat in a penetrating mode, a rotating connecting rod is fixedly installed in the middle of the rotating rod, and the other end of the rotating connecting rod is rotationally connected with a driving rod; the bottom of the driving rod is rotatably connected with a rack, the rack is slidably connected with the driving box in a penetrating mode, the front face of the driving box is rotatably connected with a connecting base, a crank is connected to the connecting base in an inserted mode, and a first gear located in the driving box is fixedly installed on the rear side of the connecting base. The first transmission gear and the second transmission gear are arranged, the diameter of the first transmission gear is larger than that of the second transmission gear, the pinion drives the large gear to rotate, the torque is increased, then the rotating torque of the rotating rod is increased, and the rotating rod can drive more windows to be opened and closed.

The utility model discloses a carrier cable homing auxiliary device which comprises a positioning sleeve, a rotating piece rotationally connected to the positioning sleeve, a fixing buckle arranged on the rotating piece and a driving device for driving the rotating piece to rotate, the driving device is arranged on the positioning sleeve, and the fixing buckle is used for fixing a carrier cable. When the cable is in an area with a large curve and a corner is large, due to the fact that tension is added to the cable and the carrier cable is located below the cantilever before being slowed down, the stress is large, the process is completed in a manual shoulder carrying mode before, the effect of saving labor is achieved through a worm gear set at present, the carrier cable is returned to the carrier cable base, and the carrier cable is fixed to the carrier cable base. The device is easy to operate, large in torque and safe to use, and the problem that an existing carrier cable is inconvenient to install when the carrier cable is slowed down is effectively solved.

The invention relates to the technical field of couplings, and particularly discloses a novel anti-seismic coupling which comprises a driven end part and a driven end part, the anti-vibration transmission part comprises a fixing frame assembly and a universal transmission shaft, a gear assembly is arranged in the fixing frame assembly, and the universal transmission shaft drives the driven end part to rotate by driving the gear assembly; the two coupling parts are respectively mounted at the axis of the driven end part and the axis of the universal transmission shaft; the two gear sets capable of mutually restraining swing are adopted for transmission, the large-range XY direction compensation capacity is achieved, meanwhile, in the transmission process, the obtained torque is larger, continuous transmission of force is ensured, operation is more stable, and the basic capacity of vibration and impact in a mechanical system is effectively reduced is achieved; errors generated by vibration in the centering or operation process of the generator can be neglected, and the power factor of equipment is improved.

The invention comprises disconnecting the actuating lever (6) of the device from its body such that the actuating lever is no longer firmly attached and becomes tiltable by means of the axis of rotation (7) such that the actuating lever is associated with the head (2) by means of a transmission mechanism, which allows the effort required to actuate said lever to be reduced and the effective angular range of the lever to be varied, thereby reducing the amount of time required to actuate said lever. Therefore, the device is more comfortable, easier and more accurate to use. The device has means for disengaging the transmission device between the lever and the head beyond the degree of inclination of the body that may be dangerous, the mechanism can be disabled by a through pin passing through a hole (10) made in the lever (6).

The present invention relates to the field of fluid transportation, specifically a self-priming gear pump with anti-blocking function for liquid inlet, comprising a base, a pump housing, a driving gear shaft, a driven gear shaft, two driving gears and a pumping gear, wherein the pump housing is fixedly connected to the left end of the upper surface of the base, the driving gear shaft and the driven gear shaft are respectively mounted on the upper and lower ends of the inner cavity of the pump housing through bearings, the two driving gears are respectively mounted on the outer walls of the driving gear shaft and the driven gear shaft, and the two driving gears are meshed with each other, the pumping gear is mounted on the right end of the driving gear shaft, and further comprises a temperature sensing probe, a filtering mechanism and a power supply mechanism, wherein the temperature sensing probe is mounted on the side wall of the water inlet of the pump housing; the filtering mechanism is mounted on the water inlet of the pump housing to filter the fluid entering the pump housing. Regular cleaning of the filter screen can not only prevent blockage of liquid inlet, but also ensure the delivery flow, and can automatically adjust the delivery pressure according to the viscosity of the fluid, so as to protect the delivery components and achieve high delivery efficiency.

This invention relates to the field of gate valve installation structure technology, specifically a gate valve with a quick-installation structure. The invention achieves flange alignment by setting a quick-installation assembly; it allows for rotation of the valve stem by applying force through a handwheel assembly; the limiting fixing plate aligns with the guide fixing rod, and the drive shaft of the drive motor rotates the double-threaded rod. The double-threaded rod, through a threaded connection, drives the right clamping plate to move laterally. The right clamping plate slides laterally on the outer wall of the limiting guide rod, causing the right clamping plate to clamp the flange of the pipeline from the right side, while the left clamping plate clamps the flange from the left side. This allows the left and right clamping plates to clamp and install the flanges on both sides. Simultaneously, the right clamping plate, through the limiting rod, drives the limiting fixing plate to insert into the guide fixing rod for fixed installation, thus achieving quick valve body installation.

The large-torque 90-degree rotating cylinder comprises a cylinder body, a first driving rack and a second driving rack are arranged in the cylinder body, a rotating shaft is arranged between the first driving rack and the second driving rack, the two ends of the rotating shaft extend out of the cylinder body and are rotationally connected with a rotating support, a rotating gear is arranged on the rotating shaft, and the first driving rack and the second driving rack are arranged in the cylinder body. A first driving piston is formed at one end of the first driving rack, a second driving piston is formed at one end of the second driving rack, a first air inlet and two second air inlets are formed in the cylinder body, the first air inlet is communicated with the space where the rotating gear is located, and the second air inlet is communicated with the space where the rotating gear is located. The gears are located at the positions, close to the ends, of the two driving racks, so that the distance and the moving distance of the whole racks are long and the torque is large in the rotating process of the gears in the moving process, and therefore the torque is increased while the torque is increased.