28results about How to "Mesh tightly" patented technology

The invention discloses a rotary seat locking mechanism which comprises a fixed disc and a movable disc rotationally matched with the fixed disc, a gear ring is fixedly installed on the fixed disc, and the gear ring is provided with an annular tooth part; a locking block and a transmission assembly controlling the locking block to slide are installed on the movable disc in a sliding mode, and locking teeth matched with the annular tooth part are arranged on the side portion of the locking block. The transmission assembly controls the locking block to slide, and the locking teeth can be switched between meshing and separation of the locking teeth and the annular tooth part. The stepless locking device has the beneficial effects that stepless locking is achieved, noise or shaking is avoided, the locking effect is good, and use is flexible.

The invention discloses a flexible transmission structure of a circular cooler. Comprising a flexible base, a driving component is arranged on the flexible base, and a transmission pin gear is arranged on an output shaft of the driving component. Self-adaptive adjustment of the driving component in the radial direction of the rotary body can be achieved, so that tight meshing of the transmission pin gear and the rotary body pin teeth is ensured. The device is high in impact load resistance, reliable in work, compact in structure and convenient to install and maintain.

The utility model relates to the technical field of rice irrigation equipment, in particular to an irrigation device for high-temperature-resistant cultivation of rice, which comprises a base, a filter box is mounted on the surface of the base, a water pump is mounted on the surface of the base, the filter box is connected with the water pump through a pipeline, and a cleaning mechanism is arranged in the filter box. The cleaning mechanism comprises a motor, the motor is installed on the surface of the filter box, the output end of the motor is rotationally connected with the filter box through a sealing bearing, the output end of the motor penetrates through the inner wall of the filter box and is connected with a lead screw, and the lower end of the lead screw is rotationally connected with the inner wall of the filter box through a ball bearing; a guide rod is arranged in the filter box; by arranging the cleaning mechanism, the cleaning roller moves up and down on the surface of the filter plate and slides relatively at the same time, so that impurities on the surface of the filter plate can be adsorbed and cleaned, a filter screen of the filter plate is prevented from being blocked, and the irrigation efficiency of the device is improved.

The invention provides a hybrid drive robot joint and a working method, relates to the field of robots, and aims to solve the problems of joint return errors, system vibration and dynamic precision reduction caused by transmission backlash of a precision speed reducer in existing robot joint drive. The first motor and the main driving unit of the RV speed reducer are combined with the compensation unit of the torque motor, so that the output shaft is simultaneously subjected to the synergistic effect of hybrid driving, and the torque motor outputs real-time controllable reverse compensation torque, so that gears in the RV speed reducer are always kept in tight engagement, the transmission backlash is effectively eliminated, and the service life of the RV speed reducer is prolonged. Compared with a traditional mechanical pre-tightening method, the defect that the compensation effect is attenuated due to long-term operation is overcome, stability and effectiveness can be kept in the whole process through a compensation mechanism of a torque motor, the transmission precision and position consistency are improved, the rigidity and dynamic response performance of robot joints are improved, vibration and track disturbance in the movement process are reduced, and the reliability is improved. And the robot is more stable and reliable in performance when executing work such as precise assembly and high-precision positioning.

The utility model belongs to angle adjusting hinge technical field especially a kind of self-locking ratchet angle adjusting hinge, including support seat and the adjusting seat of rotation connection with support seat, the upper surface of support seat is provided with self-locking mechanism, the self-locking mechanism includes spring and ball rod, the spring is driven by its elastic deformation and resets ball rod, by setting fixed mechanism, positioning and fixing are carried out to support seat, user when installing adjusting hinge, first, it is initially fixed on target object by back glue, the adhesion of back glue can fill up the tiny gap between support seat, adjusting seat and target object, then further fixed using bolt, form double fixed mechanism, the initial fixation of back glue can reduce installation difficulty and time, and its adhesive layer can absorb vibration and impact force, reduce the dynamic load that bolt bears, prolong the service life of overall structure.

This utility model relates to the field of charging pile technology, specifically to a charging gun anti-detachment structure for charging piles. It includes a base, a charging body mounted on one side of the base, and an anti-detachment component installed between the charging body and the charging gun. The anti-detachment component prevents the charging gun from falling off. Compared to existing technologies, this application, by setting the anti-detachment component, allows for manual pressing of the trigger handle after the charging gun is fully inserted, aligning the latch with the lock hole of the locking block. Upon release, a pressure spring pushes the latch to automatically engage in the lock hole, completing the lock. At this time, the arc-shaped support surface of the support block continuously abuts against the charging gun, providing auxiliary fixation. Furthermore, under external force, the weight of the charging gun is converted into a radial locking force of the latch, achieving self-reinforcing anti-detachment. To unlock, both sides must be pressed simultaneously. The trigger rod retracts the latch and the support block resets, allowing the charging gun to be safely removed.

The utility model discloses a hydraulic gear pump of a backlash-free meshing gear capable of realizing no oil trapping, which relates to the technical field of hydraulic transmission and comprises a filter rotating part, a ball valve rotating part, a filter component and a meshing mechanism, the ball valve rotating parts communicate with the left side and the right side of the filter rotating part, one end of each ball valve rotating part communicates with a rotating part, and the inner surface of each rotating part is in threaded connection with a pump body rotating part. The filtering assembly is fixedly arranged at the bottom of the inner wall of the filter rotating part and is used for filtering oil at the front end of the gear pump; the meshing mechanism is arranged in the pump body rotating piece and used for extracting oil liquid through the gear pump. The ball valves on the two sides of the filter are closed, then the rotating piece is screwed to disassemble the filter, oil liquid with impurities is filtered through the arrangement of the filter screen with the water inlet and the filter element, and therefore friction between gears is reduced, and the situation of oil trapping is avoided.

The invention relates to the technical field of head fixing devices, and discloses an adjustable head fixing device for otolaryngological surgery, which comprises an operating bed and a headrest block, the headrest block is arranged at the top of the operating bed, and a fixing assembly for fixing the head of a patient is arranged in the headrest block. The top of the fixing assembly is provided with an auxiliary fixing assembly used for assisting the fixing assembly in attaching and fixing the head of the patient, the fixing assembly is internally provided with an anti-reversion assembly used for preventing loosening in the process of fixing the head of the patient, and through the arrangement of the auxiliary fixing assembly, the fixing angle can be automatically adjusted according to the specific shape of the head of the patient; the arc-shaped clamping block is tightly attached to the outline of the head of a patient, the arc-shaped clamping block can fix the head of the patient in a more attached mode through flexible rotation of the fan-shaped block and the fan-shaped rotating block, pressure can be evenly dispersed, the patient feels more comfortable in the operation process, and the safety of the patient in the operation is improved.

The utility model relates to a kind of helical gear pump with multiple-tooth number asymmetric same modulus involute tooth profile, belong to helical gear pump technical field. Including back cover, positioning pin, floating sleeve, driving helical gear, driven helical gear, high-pressure sealing assembly, sealing ring, front cover, rotating lip skeleton oil seal, hole with clasp spring, bolt and pump body;Driving helical gear and driven helical gear are multiple-tooth number asymmetric same modulus involute tooth profile helical gear.The driving helical gear and driven helical gear in the utility model adopt multiple-tooth number asymmetric same modulus involute tooth profile, while increasing tooth thickness, leave out rotation space for addendum, ensure the strength and the stability of operation of gear, under the same addendum circle diameter, compared with standard helical gear, increase 4-6 tooth number, reduce flow pulsation, reduce noise.

The utility model relates to the technical field of hinge structure design, and discloses a honeycomb plate hinge type adjustable hinge structure which comprises two connecting shafts, connecting plates are rotatably connected to the front sides and the rear sides of the connecting shafts, honeycomb plates are fixedly connected to the bottom sides of the connecting plates at the front ends and the rear ends, and the honeycomb plates are hinged to the connecting shafts. The left end and the right end of the top side of the honeycomb plate are each provided with two threaded grooves, abutting assemblies are arranged in the threaded grooves, and the left side and the right side of the honeycomb plate at the rear end are each provided with a sliding groove. According to the utility model, the screw rod can be driven to rotate through the turn button, the sliding block and the connecting rod are driven to link the honeycomb plate to rotate, and stepless adjustment of the angle of the honeycomb plate at the front end is realized. The design that the rotating button sleeve supports the sliding block at the right end balances stress at the left end and the right end, the problem that stress is not uniform during adjustment of a single screw is solved, it is ensured that the adjustment process is stable and smooth, different feeding path requirements can be accurately met, the adaptability of equipment to complex working conditions is improved, and the device is particularly suitable for production scenes where the feeding direction needs to be frequently adjusted.

This utility model relates to a drill string processing system for oil drilling rigs, including a two-tier manipulator, a drill platform manipulator, a powered slip device, a steel drill bit, a thread cleaning device, and a traveling crane system. The two-tier manipulator is installed on the second tier of the derrick, and the traveling crane system is vertically and movably installed on the derrick. The drill platform manipulator and the steel drill bit are installed on the drill platform, allowing them to operate close to the wellhead. The powered slip device is installed at the wellhead. The thread cleaning device includes a male thread cleaning assembly and a female thread cleaning assembly. Both are installed on the drill platform; the male thread cleaning assembly cleans the male threads of the drill string located at the wellhead, and the female thread cleaning assembly cleans the female threads of the drill string located at the wellhead. Its advantages include a high degree of mechanization, significantly improved operational efficiency and safety.

The invention provides a driving mechanism and an air conditioner with the same. At least part of the driving mechanism is arranged in a shell of the air conditioner, and the driving mechanism is in driving connection with a door plate of the air conditioner so as to be used for driving the door plate to move. The driving structure is arranged on the mounting structure; the transmission assembly is arranged on the mounting structure and comprises a gear part and a movably-arranged driving part, the driving part is provided with a rack part arranged in the preset direction, the rack part is meshed with the gear part, the driving part is arranged on the door plate, and the driving structure is in driving connection with the gear part so as to drive the gear part to rotate in the process that the driving structure drives the gear part to rotate. Through meshing cooperation between the gear piece and the driving piece, the driving piece is driven to drive the door plate to move. And the pushing piece is used for applying pushing force for moving towards the gear piece to the driving piece. According to the air conditioner indoor unit, the problem that in the prior art, the movement stability of a shielding door plate of an air conditioner indoor unit is poor is effectively solved.

The invention relates to the field of bath towel machines, in particular to a parallel cutting bath towel machine. Comprising a base, a segmentation assembly is arranged on the base, the segmentation assembly is used for cutting a bath towel, and the segmentation assembly comprises a calibration mechanism and a cutting assembly; the bath towel is provided with a hair side and a satin side, and the hair side and the satin side form a boundary line perpendicular to the length direction of the bath towel. The satin face has a top height and a friction coefficient which are lower than those of the hair face; the calibration mechanism comprises a limiting part and a clamping part. The limiting part abuts against the satin face, and the side line, away from the clamping part, of the abutting position is parallel to the boundary line. The clamping part clamps the hair surface to move in the direction away from the limiting part, so that the satin surface slides relative to the limiting part, and the hair surface corresponding to the part, abutting against the limiting part, on the boundary line stops moving.

The utility model discloses a breather valve sealing structure of an air separation cold box, which belongs to the technical field of air separation cold boxes and comprises an upper cover and a valve seat, the upper cover is clamped at the upper end of the valve seat, the bottom of the upper cover is provided with an upper wave-tooth-shaped sealing gasket, the upper end of the valve seat is provided with a lower wave-tooth-shaped sealing gasket, and the upper wave-tooth-shaped sealing gasket and the lower wave-tooth-shaped sealing gasket are both circular. First sawteeth are arranged on the upper wave-tooth-shaped sealing gasket, second sawteeth are arranged on the lower wave-tooth-shaped sealing gasket, and the first sawteeth are meshed with the second sawteeth. According to the sealing structure, the leakage phenomenon caused by long-time aging of the plane sealing gasket is avoided, and the sealing effect of the upper cover and the valve seat can be monitored in time through the temperature measuring probe, so that the sealing gasket can be updated in advance; therefore, the problems of potential safety hazards and poor operation economy caused by cold loss and energy consumption increase of the air separation device due to cold leakage are solved, and the air separation device has great reference and improvement significance for the same industry.

The invention relates to the field of intelligent spraying, and provides an intelligent spraying production line for cables. Comprising a spraying barrel, two conveying mechanisms, a uniform spraying device, a low-temperature drying device, a purifying device, a controller and a laser detector. The spraying barrel is cylindrical and transversely arranged above the purification device, and the spraying barrel is fixedly connected with the purification device and communicates with the purification device. And the uniform spraying device is arranged at one end of the spraying barrel. And the low-temperature drying device is arranged at the other end of the spraying barrel. The two conveying mechanisms are arranged on the outer side of the uniform spraying device and the outer side of the low-temperature drying device correspondingly and used for conveying cables, and the laser detector is arranged on the side of the low-temperature drying device and used for detecting the spraying quality. And the controller is electrically connected with the two conveying mechanisms, the uniform spraying device, the low-temperature drying device and the laser detector. The cable spraying device can perform uniform spraying on a cable, and a coating is prevented from being damaged through low-temperature drying.

A rocker arm transmission device of a small-angle side sewing machine comprises an arm body unit which is provided with a vertical rocker arm body, an oblique arm body, a rocker arm head and a rocker arm cover, the vertical rocker arm body is rotationally supported through a rocker arm fixing sleeve, and the oblique arm body is connected with the vertical rocker arm body; the synchronous belt wheel power unit is arranged in an inner cavity of the vertical rocker arm body, and a driven wheel piece drives the shuttle support transmission unit; the gear positioning unit is arranged in the vertical rocker arm body; the shuttle support transmission unit comprises a shuttle support ball head transmission shaft, a shuttle support transmission gear piece and a transition gear; the needle plate transmission unit comprises a needle plate ball head transmission shaft and a needle plate transmission gear piece, and the needle plate ball head transmission shaft is connected with the gear positioning unit; the shuttle support piece is mounted between the rocker arm cover and the rocker arm head; and the shuttle assembly comprises an inner side shuttle and an outer side shuttle which are respectively matched with the needle plate transmission gear piece and the shuttle support piece. The utility model has the advantages that the design of the arm body unit is optimized, the sewing requirements of high-upper shoe products are met, and the working efficiency is improved; a gear meshing transmission mode is innovated, and transmission stability and reliability are improved.

A toothed chain transmission system, belonging to the field of chain drive technology, includes a toothed chain and sprockets that mesh with each other. The chain includes guide plates, toothed chain plates, pins, and rollers. Rollers are mounted on the pins. The guide plates are located on both sides of the chain, and the two ends of the pins are respectively interference-fitted with first connecting holes on the guide plates. The toothed chain plates include first toothed chain plates and second toothed chain plates. The first toothed chain plates are arranged side by side along the pin axis on two adjacent pins between adjacent guide plates. The second toothed chain plates are connected to two pins located on the inner side of the first toothed chain plates between adjacent first toothed chain plates. This invention is based on the meshing transmission principle of toothed chains and optimizes and improves the original toothed chain, thereby achieving the goals of noise reduction, load increase, and transmission efficiency improvement when used in conveying equipment, significantly improving the overall performance and reliability of the chain drive system.

The utility model discloses a speed chain conveying structure which comprises a speed chain conveying belt, a baffle is arranged outside the speed chain conveying belt, one end of the baffle is connected with a vertical transmission assembly, a tensioning wheel is arranged on one side of the vertical transmission assembly, and the lower end of the vertical transmission assembly is connected with a belt transmission assembly. According to the double-speed chain conveying belt tensioning device, the two tensioning wheels move downwards at the same time to restore the tension of the double-speed chain conveying belt, firstly, the two tensioning wheels are opposite to one tensioning wheel, the downward moving distance of the tensioning wheels can be reduced, the two tensioning wheels can exert equal pulling force on the two sides of the double-speed chain conveying belt, the whole chain of the double-speed chain conveying belt is evenly stressed, and therefore the tensioning effect of the double-speed chain conveying belt is improved. And compared with a single tensioning wheel, the problems of chain deviation, distortion and the like can be avoided, the tension recovery effect of the speed chain conveying belt is further improved, the effect of temporarily recovering the tension of the speed chain conveying belt is achieved, and it is guaranteed that the current work progress is not affected.

The application discloses a universal joint ball pair locking mechanism and medical equipment, and relates to the field of medical equipment. The universal joint ball pair locking mechanism comprises a ball joint and a locking assembly. The ball joint comprises an inner ball head and an outer ball body which are hingedly connected with each other. The locking assembly comprises a first engaging member, a second engaging member and an unlocking driving member. The application realizes rigid locking through the engagement of the first engaging member and the second engaging member. The locking design is not affected by factors such as changes in the friction coefficient and wear, and can stably maintain the relative angle of the inner ball head and the outer ball body, thereby avoiding adverse loosening caused by friction failure and improving the stability of the locking strength. The locking assembly has two states of locking and unlocking. When unlocked, the inner ball head and the outer ball body can be universally adjusted, thereby meeting the requirement of flexible equipment to reach a target position and angle. When locked, stable support is provided through rigid engagement, and the use requirements of flexible adjustment and reliable locking are considered, so that the application is well applicable to application occasions of the stability of equipment operation.

The utility model discloses a flexible rack mounting structure of a massage mechanism in the technical field of massagers, which comprises at least one flexible rack and a traveling mechanism mounted on the flexible rack, a driving gear used for driving the flexible rack is arranged in the traveling mechanism, a transverse restraint structure is arranged on the traveling mechanism, and the transverse restraint structure is connected with the flexible rack. The transverse restraining structure abuts against the outer side of the flexible rack so that the inner side of the flexible rack can be tightly meshed with the driving gear, the transverse restraining structure abuts against the outer side of the flexible rack so that the inner side of the flexible rack can be tightly meshed with the driving gear, and therefore stable meshing transmission of the rack and the movement walking mechanism can be guaranteed. The walking mechanism is further provided with a longitudinal restraining structure, the height position of the flexible rack relative to the machine core walking mechanism is restrained and limited from the upper side and the lower side through the longitudinal restraining structure, that is, the vertical position of the flexible rack relative to the driving gear is restrained and limited, and therefore meshing failure caused by vertical dislocation can be avoided.

The present invention relates to the technical field of reducers, and in particular to an RV reducer, which comprises: two crankshafts, two cycloid wheels, a pinion disk, an end cover, a driving mechanism, and a gear shaft. The two crankshafts are driven to rotate by the driving mechanism, thereby driving the two cycloid wheels to swing, and the cycloid wheels mesh with the pinions on the inner circumference of the pinion disk, thereby driving the pinion disk to rotate. When the driving mechanism drives the two crankshafts to rotate, the planetary wheels installed on the two crankshafts are simultaneously driven to rotate, thereby driving the gear shaft meshing with the planetary wheels to rotate. Since the planetary wheels located on the periphery of the gear shaft are driving wheels, the gear shaft located in the middle is subjected to pressure from the planetary wheels when rotating, so that the planetary wheels and the gear shaft are meshed very tightly, thereby reducing the return clearance of the RV reducer, improving the transmission accuracy of the RV reducer, and making the RV reducer suitable for high-precision machining.

The present invention discloses an R-type contactless loading PCB assembly fixture, comprising a first outer plate, an inner frame, a second outer plate, a sliding rod, a partition frame, a relay rod and a synchronization rod, wherein a second outer plate is crimped between the front and rear ends of the two first outer plates, and a pressing plate is installed on the outer wall cover of the second outer plate away from one end of the first outer plate. A continuous arc groove is arranged at the top of the first inner plate and the second inner plate, and the lowest point of the arc groove is located at the middle of the top of the first inner plate, so that the PCB board can be turned into an arc shape through its own toughness through the arc shape, and the PCB board can be fixed by pressing the surroundings with the stacked spacers, so that each layer of the PCB board can be truly contactless.

The invention provides a rhizoma panacis majoris seed cultivation device which comprises a box body, one side of the box body is provided with an opening, a sealing door is rotatably arranged on one side of the opening of the box body, a plurality of placing tables are evenly arranged in the box body in the vertical direction, a seedling raising plate is arranged on each placing table, and a mounting rod is slidably arranged in the box body. A sliding block is slidably arranged on the mounting rod, a spraying pipe is fixedly arranged at one end of the sliding block, a guide block is fixedly arranged at the end, away from the sliding block, of the spraying pipe, and the guide block is slidably arranged on the inner wall of the box body; a lifting device is arranged in the box body, a driving assembly is arranged in the box body, and the driving assembly is used for driving the sliding block to move on the mounting rod; a ventilation hole is formed in the top of the box body, an air exchange fan is arranged at the top of the box body, an air outlet of the air exchange fan communicates with the ventilation hole, and a fluorescent lamp is fixedly arranged on the inner top wall of the box body. The irrigation operation can be simplified, the development environment of seeds can be protected, and the growth and development quality of the seeds can be guaranteed.

The application belongs to the technical field of bicycle handle, discloses a bicycle handle convenient for angle adjustment, which comprises a U-shaped mounting seat, a handle vertical rod, a handle horizontal rod, a bicycle handle holding part group and an angle adjustment assembly; mounting holes are formed at both ends of the U-shaped mounting seat, guide holes are formed at the upper sides of the mounting holes at both ends of the U-shaped mounting seat; the handle vertical rod is rotatably installed at the inner side of the U-shaped mounting seat, rotating rods are fixedly installed at both ends of the handle vertical rod, and the rotating rods are inserted into the mounting holes; the handle horizontal rod is fixedly installed at the upper end of the handle vertical rod; the bicycle handle holding part group is fixedly installed at both ends of the handle horizontal rod, and the handle angle can be adjusted without tools through the cooperation of damping telescopic rods, springs and limiting rods; the limiting rods are separated from the positioning grooves by pulling the rotating disc, the handle vertical rod can be rotated to adjust the angle, the spring is automatically reset after being loosened, and the limiting rods are embedded into the corresponding positioning grooves to complete locking.

The utility model discloses a detachable combined sealing rubber pad, which relates to the technical field of rubber pads, and comprises a first sealing ring and a second sealing ring, an adjusting mechanism is arranged between the first sealing ring and the second sealing ring, the adjusting mechanism comprises an adjusting sealing ring, a fixing mechanism is arranged in the second sealing ring, and the fixing mechanism is connected with the adjusting sealing ring. And the fixing mechanism comprises a fixing toothed rod, a fixing toothed plate and a limiting sliding rod, a limiting mechanism is arranged outside the first sealing ring, and the limiting mechanism comprises a supporting metal shell, a first sliding way and a second sliding way. The thickness value of the combined sealing rubber pads can be conveniently adjusted by increasing or reducing the number of the adjusting sealing rings, the fixed toothed rods are fixed through the fixed toothed plates, the combined sealing rubber pads are fixed together, the combined sealing rubber pads are conveniently detached, the positions of all the sealing rubber pads are fixed through the limiting sliding rods, and the sealing effect is good. The deviation of the combined sealing rubber pad during use is avoided, and the use stability of the combined sealing rubber pad is improved.

The utility model belongs to the technical field of fairing, concretely relates to a propeller fairing convenient to installation, including the shell, the shell top is fixedly connected with the connecting plate, the connecting plate top is fixedly connected with the connecting cover no.