38results about How to "Avoid friction" patented technology

The utility model discloses a water-driven self-pressure-relief buried telescopic sprinkling irrigation device, and belongs to the technical field of agricultural irrigation. The water-driven self-pressure-relief buried telescopic sprinkling irrigation device comprises an outer pipe assembly, an inner pipe is arranged in the outer pipe assembly in a sliding mode, the upper end and the lower end of the inner pipe are fixedly provided with a spray head and a sliding base respectively, the sliding base divides the interior of the outer pipe assembly into a first inner cavity and a second inner cavity, and the spray head extends to the exterior of the outer pipe assembly; a self-pressure-relief assembly is arranged in the sliding seat in a sliding mode, and a plurality of connecting holes matched with the self-pressure-relief assembly are formed in the sliding seat. According to the technical scheme, the buried telescopic sprinkling irrigation device can be driven up and down through water resources, and meanwhile, pressure self-relief can be achieved.

A robot sweeper includes a main body, a pair of drive modules, and a cleaning module. The drive modules are respectively pivotally connected to the main body. The drive modules include a roller set and a drive device. The drive device is mechanically connected to the roller set and configured to drive the roller set to rotate about a first axis. The cleaning module is connected to the main body and at least partially located between the roller sets along the first axis.

The utility model discloses a degradable PLA (polylactic acid) coated paper cup forming mold, and relates to the technical field of paper cup production. The device comprises a supporting cylinder, the top of the supporting cylinder is rotationally connected with a rotating disc, a plurality of separable molds are arranged at the top of the rotating disc, elastic pushing assemblies are arranged on the two sides of each separable mold, jacking assemblies are arranged at the bottoms of the separable molds, and locking assemblies are arranged at the pushing ends of the elastic pushing assemblies. According to the paper cup separating device, the separating assembly is driven, after the locking assembly unlocks the elastic pushing assembly, the elastic pushing assembly pulls the separable mold outwards and enables the separable mold to be separated, at the moment, a paper cup can be separated from the inner wall of the separable mold, then the jacking assembly jacks the paper cup upwards, and the paper cup can be separated from the inner wall of the separable mold. By means of the arrangement, when the paper cup is demoulded, friction force and obstruction from the inner wall of the separable mould can be avoided, and the risks of local tearing and deformation caused by uneven stress of the paper cup are effectively reduced.

This utility model discloses a backrest lock, including a base plate. A locking hook and a locking plate are movably disposed on the base plate. The end of the locking plate has a pull head for connecting and cooperating with an external car pull rod, so that when the pull rod is pulled, the locking plate swings to release the restriction on the swing of the locking hook. The inner wall of the locking hook has a positioning strip for synchronously moving along the swing trajectory of the locking hook when it swings. The inner wall of the base plate has a positioning structure that works in conjunction with the positioning strip to guide the swing trajectory of the locking hook and limit the direction of the hook's swing, and an auxiliary structure that works in conjunction with the positioning structure to limit the wobbling or loosening of the locking hook when it is subjected to vibration and to improve the smoothness of the hook's swing. This utility model solves the problems of unstable hook swing trajectory and insufficient positioning accuracy in traditional backrest locks, easy loosening or wobbling of the locking hook under vibration, and insufficient smoothness of the hook's swing leading to operational jamming.

The application discloses a path planning method, a path planning device, a self-moving device and a computer storage medium. The method is applied to the self-moving device, the self-moving device comprises a first front wheel and a second front wheel, the first front wheel and the second front wheel are arranged in a non-parallel manner, and the method comprises the following steps: when it is detected that the self-moving device is located on a slope, the direction of the slope is determined according to the current posture of the self-moving device; the first angle between the direction of the slope and the first front wheel and the second angle between the direction of the slope and the second front wheel are determined; the target motion direction of the self-moving device is determined according to the first angle and the second angle; the slope moving path is planned according to the target motion direction, and the self-moving device is controlled to move along the slope moving path. The method can improve the climbing ability of the self-moving device, and further improve the operation coverage and operation effect.

The unfolding mechanism for the barrier plate of the roadblock vehicle is suitable for being arranged between a vehicle body of the roadblock vehicle and the barrier plate so as to open or close the barrier plate of the roadblock vehicle, and is characterized by comprising a support big arm, an unfolding arm and a driving arm, one end of the support big arm is suitable for being hinged to a vehicle body of the roadblock vehicle, the other end of the support big arm is hinged to one end of the unfolding arm through a first knuckle bearing, and the other end of the unfolding arm is provided with a second knuckle bearing suitable for being hinged to the inner side of a baffle of the roadblock vehicle through the second knuckle bearing. One end of the driving arm is suitable for being hinged to a vehicle body of the roadblock vehicle, and the other end of the driving arm is hinged to the side wall of the support large arm so as to drive the support large arm to rotate.

The utility model discloses a crucible forming double-station hydraulic machine, which relates to the technical field of crucible manufacturing equipment and comprises a mold base and first hydraulic machines arranged at two ends of the top of the mold base along the length direction of the mold base. A locking mechanism is arranged at the bottom end of the interior of a storage groove in the mold base, a driving mechanism is connected to the upper portion of the locking mechanism, the driving mechanism is driven by the locking mechanism, the multiple first limiting plates can be driven to be spliced and separated, the first limiting plates are separated during demolding, the contact area between the mold and a finished product is reduced, and the production efficiency is improved. Therefore, friction force is reduced, the demolding process is smoother, the demolding speed is increased, the second hydraulic machine can eject out a finished product, friction force generated by direct ejection in a traditional demolding mode is avoided, and the outer arc wall of the finished product is further protected against damage.

The utility model belongs to high -voltage electric porcelain technical field, concretely is a kind of anti-deformation pottery clay wine jar forming die, including support frame, still include: spraying assembly is set to support frame top inside;Send mud component, is set to support frame top outside;Moving assembly is set to support frame both sides inside;Die is real component, is set to moving assembly moving end;The utility model provides a kind of anti-deformation pottery clay wine jar forming die, before the two sides pottery clay mould is real, and spraying release agent on pottery clay mould inner wall, and release agent can reduce pottery clay and the adhesion of mould, ensure that pottery clay smoothly demould, avoid deformation or damage, secondly, it helps to ensure that pottery clay wine jar keeps stable shape during forming process, avoid partial pressure and deformation, furthermore, release agent can improve demoulding efficiency, reduce friction, to speed up production process, it can also protect mould surface, reduce wear and tear, extend the service life of mould, and reduce maintenance frequency.

The utility model discloses a compact single-action rotary clamping air cylinder, and belongs to the technical field of air cylinders. Comprising a rotating cylinder which is provided with a rotating shaft capable of rotating around the axis of the rotating shaft; the linear air cylinder is provided with a piston rod, and the piston rod can do linear motion independently in the axial direction; the rotating cylinder is detachably connected with the linear cylinder through a fastener, the rotating shaft is matched with the piston rod through a key groove, and when the rotating shaft is static, the piston rod can independently execute linear motion; when the rotating shaft rotates, the piston rod is driven to rotate synchronously. Due to the fact that the rotating action and the clamping action can be independently controlled, an operator can flexibly adjust the operation sequence according to different working condition requirements, the operation flexibility and logicality of the device are greatly improved, the device can better adapt to complex working scenes, and the production efficiency and the product quality are improved.

Nuclear power turbine high pressure valve hydraulic control mechanism and driving system. In the first hydraulic passage of the nuclear power turbine high pressure valve hydraulic control mechanism, the first end of the first emergency electromagnetic valve is connected with the oil supply device through an oil return passage, the second end is connected with the control oil chamber of the first pilot cartridge valve through a first throttle hole, and is also connected with the first end of the first check valve; the second end of the first check valve is connected with the pressure oil chamber of the first pilot cartridge valve, and is also connected with the first end of the first main cartridge valve; the second end of the first main cartridge valve is connected with the driving mechanism through a power passage; the first pilot cartridge valve and the first main cartridge valve are also connected with the oil supply device through oil return passages; in the case that the first emergency electromagnetic valve is closed by power-off, the first pilot cartridge valve and the first main cartridge valve are opened in turn, forming an oil path from the driving mechanism to the oil supply device. The nuclear power turbine high pressure valve hydraulic control mechanism can eliminate the driving mechanism failure.

The utility model discloses an auxiliary structure based on primary and secondary separate current -limiting complete equipment, and the utility model relates to electrical equipment technical field. This auxiliary structure based on primary and secondary separate current -limiting complete equipment of the utility model includes the bottom plate, and the top of bottom plate is provided with the limiting mechanism, and the top of bottom plate is used for limiting the position of connecting component, and connecting component includes the limiting frame that is embedded and is installed in the top of support component, and the inside of limiting frame is inserted and is installed with the connecting column, and the top of connecting column is inserted and is installed with the insulating plate, and the below of limiting frame swing installation has the movable frame, and damping rod is inserted and is installed with support spring elastic deformation by the inclination rotation characteristic of itself, and the top insulating plate is rubber material, can effectively absorb, buffer shock energy, avoid that shock is directly transmitted to equipment ontology, solve the problem that the existing clamping structure has no buffer and the service life of equipment is shortened by vibration, improve equipment operation stability and service life.

The utility model relates to the technical field of small projection lamps, in particular to a projection lamp with a secondary positioning and fixing lens support. Comprising a lens, a lens support, a PCB lamp panel and a lamp shell, the lens is installed in the lens support, the lens support and the PCB lamp panel are fixed through at least two screws, the PCB lamp panel is installed in the lamp shell, at least three triangular positioning columns are arranged at the end, close to the PCB lamp panel, of the lens support, and positioning holes corresponding to the triangular positioning columns are formed in the PCB lamp panel. During installation, secondary positioning is carried out on the lens support and the PCB lamp panel through the triangular positioning columns, and the situation that in the screw fixing and installing process, friction force is generated in the opposite angle fixing and rotating direction along the screw fixing and rotating direction, and consequently the lens support rotates and deviates relative to the PCB lamp panel is avoided.

The invention relates to the technical field of chemical energy conservation, and discloses a chemical process energy gradient utilization heat exchange system which comprises a heat exchanger body, a shell cover is movably installed on the left side of the heat exchanger body, and a fluid inlet pipe extending to the top of the shell cover is fixedly installed on the inner top wall of the shell cover. A fluid outlet pipe extending to the bottom of the shell cover is fixedly installed on the inner bottom wall of the shell cover, a heat inlet pipe extending to the top of the heat exchanger body is fixedly installed on the inner top wall of the heat exchanger body, a heat outlet pipe extending to the bottom of the heat exchanger body is fixedly installed on the inner bottom wall of the heat exchanger body, and a bracket is fixedly installed at the bottom of the heat exchanger body. A connecting mechanism is arranged between the heat exchanger body and the outer side of the shell cover, a filtering mechanism extending to the inner side of the fluid inlet pipe is arranged at the top of the fluid inlet pipe, and according to the heat exchange system for gradient utilization of energy in the chemical process, the connecting mechanism is arranged, so that the purpose of convenient disassembly is achieved; the purpose of arranging a filtering structure is achieved.

The utility model discloses a temperature input type signal isolator, including shell and installation portion, the shell is by half edge shell I and half edge shell II through bolt tight cover and is made, the top of installation portion has the slot for the plug -in installation shell, and has the ladder -shaped groove in the bottom of installation portion, and the both sides in the ladder -shaped groove are located with the vertical board, pass through the positioning structure between the " " shaped push frame and vertical board to make push frame relative to vertical board after moving and opposite fixed with vertical board, and with " " shaped support plate body is inserted into the aperture in the middle of guide rail for supporting, two clamping teeth are symmetrically installed in the ladder -shaped groove, and be used for clamping on guide rail. The utility model, avoided when using external bolt when signal isolation and guide rail installation fixed need extra punching and the inconvenience in the narrow space operation's disadvantages, bring the convenience to the installation and dismount of this signal isolator.

This invention belongs to the technical field of phase change heat transfer elements, specifically relating to a device and method for removing segmented mandrels. The invention includes a hydraulic motor, a winch, steel wire, a special clamp, a support platform, a baffle, and a worktable. The winch is mounted on the worktable, and the hydraulic motor is connected to the winch via a coupling. Steel wire is wound on the winch, with one end connected to one end of the special clamp, and the other end of the special clamp connected to the segmented mandrel. The upper surface of the support platform has a V-groove, and the workpiece containing the four-segmented mandrel is placed in and fixed within the V-groove of the support platform. A baffle is provided at the end of the support platform near the segmented mandrel. This invention provides a stable and powerful axial pulling force through a hydraulic system, and utilizes a special clamp and a step-by-step blocking mechanism to achieve reliable clamping and sequential, individual pulling of the segmented mandrel, solving the problems of difficult, inefficient, and easily damaged manual removal, thus improving the manufacturing quality and production efficiency of phase change heat transfer elements.

The utility model discloses a kind of high-efficiency fertilizing device for potato planting, belong to agricultural planting fertilization technical field.A kind of high-efficiency fertilizing device for potato planting, including rack, the fertilizer box for storing fertilizer is fixedly connected on the rack, fertilizer box is fixedly connected with discharge pipe, further include: the adjusting block of sliding connection on rack, and adjusting block is sleeved on the outside of discharge pipe, adjusting groove is opened in rack, sliding block is slidably connected in adjusting groove, and sliding block is fixedly connected with adjusting block, equidistantly arranged with positioning hole on rack, and sliding block is provided with the lock hole compatible with positioning hole, when lock hole and positioning hole are communicated, locking passage is formed, and plug-in rod is movably connected in locking passage;The utility model uses adjusting block, sliding block, positioning hole and plug-in rod cooperation, can be according to on-site adaptation demand fast adjustment distance between discharge pipe, and then according to row spacing adjustment fertilizing distance, improve the utilization of fertilizer.

The invention discloses a livestock meat cutting, hanging and conveying device, and relates to the technical field of livestock slaughtering and processing. The livestock meat cutting, hanging and conveying device comprises a chain main body, and further comprises carrying frames which are arranged below the chain main body at equal intervals through connecting frames; the hook main body is formed by crossing two groups of L-shaped rods, and a middle shaft is rotationally mounted at a crossing point and is fixed in the carrying frame; the position adjusting assembly is located between the upper portions of the two L-shaped rods, and in the conveying stage, the height of the position adjusting assembly is not changed so as to limit the angle of the two L-shaped rods; according to the livestock meat cutting, hanging and conveying device, the auxiliary track and the position adjusting assembly which are in linkage with the conveying chain are arranged, and when the conveying device runs to a specific discharging station, posture changes of the hooks can be automatically triggered.

The utility model belongs to the technical field of personal care equipment, and particularly provides a shaver to solve the problem that an existing shaver is prone to injuring the skin due to the fact that the shaving force is too large when a user uses the shaver. Therefore, the shaver comprises a shaver body and a shaver head, the shaver body comprises a fixing support, a driving motor installed on the fixing support, a transmission shaft rotatably installed on the fixing support and a damping component fixedly connected with the transmission shaft. The transmission shaft can float relative to the fixing support in the axial direction. The transmission shaft is in driving connection with the driving motor and the tool bit so as to transmit power of the driving motor to the tool bit. The damping component can make contact with or be separated from the fixing support along with floating of the transmission shaft so as to make contact with the fixing support in a sliding mode when the tool bit is extruded, so that frictional resistance is generated, and the load of the driving motor is increased. According to the shaver with the structure, the technical problem is solved.

This application relates to the field of vehicle technology and discloses a power supply device for vehicle windows, including a drive assembly, a lifting assembly, a first conductive wire, and a second conductive wire. The lifting assembly includes a lifting rail and a slider, with the slider movably mounted on the lifting rail and used to fix the vehicle window glass. The first conductive wire has a first end and a second end, and the second conductive wire has a third end and a fourth end. The first end is connected to the slider via the upper end of the lifting rail and is electrically connected to the vehicle window glass. The third end is connected to the slider via the lower end of the lifting rail and is electrically connected to the vehicle window glass. The second and fourth ends are both electrically connected to an external circuit. The vehicle window power supply device provided by this application, without the need for additional power supply lines, can not only drive the vehicle window glass to rise or fall but also supply power to the vehicle window glass, thereby simplifying the structure of the vehicle window power supply device and avoiding interference or friction with surrounding components.

An opening and closing structure of a thermal printer comprises a lower base assembly and an upper cover assembly which can be arranged on the lower base assembly in a turnover mode, and is characterized in that a connecting supporting frame is arranged at the rear end of the upper cover assembly, a shaft part and a falling groove are arranged on one side of the connecting supporting frame, and correspondingly, the lower base assembly is provided with an inserting channel for containing the connecting supporting frame. The shaft hole is in running fit with the shaft part, and the convex body can be in extrusion contact with the outer wall of the connecting support frame to generate damping. The utility model also discloses a thermal printer. When the upper cover assembly and the lower base assembly are closed, the protruding body and the outer wall of the supporting frame form extrusion contact, friction force is formed on the contact face, damping of the last stroke of the upper cover assembly is achieved, strong impact of the upper cover assembly on the lower base assembly is avoided, and the risk that fingers are clamped can also be reduced.

The utility model discloses a detachable filter screen of dust removal fan for coal mine is connected in the dust chamber of dust removal fan for coal mine, and the top of dust chamber forms the filter hole of rectangular array, and the filter hole is connected with the annular connecting plate, and the connecting plate forms two connecting grooves extending downward from the top, and the two connecting grooves are axisymmetric along the cross section of connecting plate, and the filter screen is cylindrical filter cartridge, and the top of filter cartridge is connected with the support rod extending along its radial, so as to fix filter cartridge on connecting plate through the cooperation of support rod and connecting groove. The utility model discloses filter cartridge when connecting with dust chamber adopts the plug-in connection of using the cooperation of connecting plate and filter cartridge, and provides the guidance for the connection of both through the cooperation of support rod and connecting groove, and compared with the mode of using the thread connection, can greatly reduce the time of dismounting and installing, and improve the overall maintenance efficiency.

This utility model relates to the field of slurry pump maintenance technology and discloses a slurry pump cover hoisting tool, including a vertical, U-shaped lower hoisting frame and a horizontal C-shaped connecting frame. The open end of the hoisting frame faces downward, and the open end of the hoisting frame and the open end of the connecting frame are hinged. The connecting frame is provided with a connecting flange for connecting to the suction pipe flange of the pump cover. Lifting lugs for attaching to the hoisting tool are fixedly connected to the hoisting frame. The opening width of both the hoisting frame and the connecting frame is greater than the width of the pump cover. After the connecting flange is connected to the suction pipe flange, the hinge axis of the hoisting frame and the connecting frame passes through the center of gravity of the pump cover in the horizontal direction. During the process of leveling the pump cover, the pump cover never needs to contact the ground, thus preventing collisions with surrounding facilities and scratches to the ground. Furthermore, there is no need to operate a crane for horizontal movement or release the wire rope, so the pump cover is less prone to shaking when leveled.

This invention provides a two-dimensional electro-hydraulic servo valve based on a wet-dry separation transmission mechanism, comprising a valve body connected to a motor via a mechanical transmission mechanism; the valve body includes a valve core, a valve sleeve, and a valve body; the mechanical transmission mechanism includes a housing disposed between the valve body and the motor, within which are a wet operating chamber and a dry operating chamber, the wet operating chamber being connected to the internal oil passage of the valve body; the dry operating chamber is located on one side of the wet operating chamber, and the motor rotor extends into the dry operating chamber; the mechanical transmission mechanism also includes a transmission assembly, comprising a first-stage torque amplification mechanism and a second-stage torque amplification mechanism connected together. This invention addresses the problems of high-pressure dynamic seal friction loss and short lifespan in existing two-dimensional electro-hydraulic servo valve structures by incorporating a wet operating chamber; simultaneously, the dry operating chamber ensures that the hydraulic oil does not directly contact the motor; the transmission assembly amplifies the motor's output torque, overcoming various resistances encountered by the valve body during operation.

The utility model discloses a cleaning structure for a steel wire ring of a spinning frame, which belongs to the technical field of steel wire ring cleaning and comprises a fixing block, a rotating shaft, a rotating shaft, a rotating shaft and a rotating shaft. The fixing bolt is in threaded fit with the threaded hole and is used for fixing the fixing block on the spinning frame main body; one end of the cleaning block is connected with the fixed block, and the other end is provided with a plurality of cleaning teeth; according to the scheme, when a wrapping pattern is generated on the steel wire ring and rotates to the position of the cleaning teeth along with the steel wire ring, the cleaning teeth can scrape off the wrapping pattern, so that extra friction force and non-uniform tension on yarns due to the existence of the wrapping pattern are avoided, the risk of yarn breakage is remarkably reduced, the number of times of manually processing the yarns is reduced, and the production efficiency is improved. The burden of workers is reduced, the production efficiency of the spinning frame is improved, the spinning frame can run for a longer time, the quality of spun yarns is improved, and the practicability is high.

The utility model belongs to the technical field of medical instruments, and relates to a pathological section airing cabinet which comprises a cabinet body, a plurality of drawers are transversely arranged in the cabinet body, and a partition plate is arranged in each drawer to divide the interior of the drawer into a left clamping groove and a right clamping groove. A baffle is arranged in each clamping groove in a sliding mode, two side plates which are spaced in parallel in the left-right direction are welded to the front side wall of each baffle, a guide rod extending in the left-right direction is fixedly arranged on each side plate, the outer end of each guide rod is sleeved with a pressing plate, and each guide rod is sleeved with a pressing spring; the two ends of the pressure spring abut against the pressing plate and the side plate respectively. The baffles are slidably arranged in the clamping grooves of the drawers of the section airing cabinet, a plurality of pathological sections can be clamped between the baffles and the rear side walls of the clamping grooves, and the pressing plates can be tightly pressed and attached to the inner side walls of the clamping grooves through the pressing springs, so that the baffles are fixed, the baffles are prevented from moving in the clamping grooves, the pathological sections are fixed, and the probability that the pathological sections topple in the clamping grooves is reduced.

The utility model relates to a farmland water-saving irrigation device. The utility model is suitable for the technical field of farmland irrigation. The technical problem to be solved by the application is to provide the farmland water-saving irrigation device. According to the technical scheme, the farmland water-saving irrigation device comprises a plurality of supports arranged in field ditches on the two sides of a farmland and arranged in the length direction of the farmland at intervals; the spraying pipe assembly is rotationally mounted on the bracket and is used for spraying and irrigating the farmland below the spraying pipe assembly; the water supply assembly communicates with the water inlet ends of the spraying pipe assemblies and is used for pressurizing water and feeding the water into the spraying pipe assemblies; the gear adjusting assembly is arranged on the support close to the water inlet end of the spraying pipe assembly, is in transmission connection with the spraying pipe assembly and is used for driving the spraying pipe assembly to rotate back and forth within a preset angle; the water power assembly is arranged in the water inlet end of the spraying pipe assembly, is in transmission connection with the gear adjusting assembly and can drive the gear adjusting assembly under the action of flowing water.

The invention provides a soil resistance detection device. The soil resistance detection device comprises a main cavity, an electrode system and a measurement host, the main cavity comprises a base, a cylinder body, a vibration mechanism, a cup body and a top cover. The vibration mechanism is in transmission fit with the cup body to conduct vibration compaction on the soil. The top cover is provided with a top pressing plate connected with a telescopic rod, and a volume-adjustable detection cavity is defined by the top pressing plate and the cup body. An exhaust mechanism capable of being inserted into soil and a telescopic mechanism for controlling the exhaust mechanism to move are arranged on the top pressing plate. During working, the exhaust mechanism is inserted into the bottom of soil and moves upwards synchronously along with downward pressing of the top pressing plate, and the bottom of the exhaust mechanism is flush with the bottom face of the top pressing plate when compaction is completed. The device integrates the functions of vibration compaction, synchronous exhaust and resistance measurement, can effectively control the soil compactness, exhaust internal air, remarkably improve the measurement precision and repeatability and simplify the operation process, and is suitable for soil electrical property detection in the fields of agriculture, environment, geology and the like.