25results about How to "Guaranteed length" patented technology

This utility model discloses a laser marking fixture, including a worktable, a marking support, a marking device, a workpiece support, and a length detection mechanism. The marking device is mounted on the worktable via the marking support, and the workpiece support is also mounted on the worktable. The length detection mechanism includes a first limiting block, a second limiting block, and a limiting cylinder. The first limiting block is located at one end of the worktable, and the second limiting block is located at the other end. A protrusion is provided on the side surface of the second limiting block closest to the first limiting block. A through hole is provided on the second limiting block at a location without the protrusion. The limiting cylinder is located on the side of the second limiting block furthest from the first limiting block. The workpiece is positioned between the first and second limiting blocks, and the piston rod of the limiting cylinder passes through the through hole in the second limiting block to clamp the workpiece in conjunction with the first limiting block. This utility model enables simultaneous laser marking and workpiece detection, preventing defective products from being shipped out.

A combined Chinese yam tuber growth groove arranged in a trench belongs to agricultural planting appliances, the Chinese yam tuber growth groove comprises a combination part, a space part and a base, the combination part is used for overlapping an upper Chinese yam tuber growth groove and a lower Chinese yam tuber growth groove, and the Chinese yam tuber growth grooves are combined to form a Chinese yam tuber growth space. According to the Chinese yam tuber growing device, Chinese yam tubers are separated from soil, occurrence of soil infectious diseases is avoided, growth resistance of the Chinese yam tubers is reduced, and the Chinese yam tuber growing device has the advantages that the Chinese yam tuber growing device is simple in structure, convenient to use and high in yield, and the yield of the Chinese yam tubers is increased. Chinese yam tubers grow in the shallow soil layer, the planting density is increased, the tower furrow phenomenon is avoided, the yield and quality of Chinese yams are improved, the plot planting limitation is overcome, the planting range is expanded, mechanical planting is achieved, and the income of farmers is increased.

This utility model provides a battery, a battery pack, and a battery device. The battery includes a shell, a cover plate, terminals, and an insulating component. The cover plate covers the opening of the shell to form the outer shell of the battery, and has mounting holes. The terminals pass through the mounting holes, with their end faces exposed. The insulating component is located between the outer periphery of the terminals and the inner edge of the mounting holes, providing insulation for the terminals and the cover plate. The end faces form welding positions for busbar welding. Since the minimum distance d1 between the insulating components and the heat deformation temperature k of the insulating components satisfy 300 mm·℃ ≤ d1*k ≤ 1900 mm·℃, the welding position area and weld length can be guaranteed, ensuring the current carrying capacity of the terminals and busbars, while preventing the insulating components from melting under the residual heat of welding, thereby ensuring the insulation performance of the insulating components.

The utility model provides a cylindrical battery shell bottom welding mark structure and a cylindrical secondary battery. The cylindrical battery shell bottom welding mark structure comprises a shell bottom and a welding mark positioned on the shell bottom, the welding track of the shell bottom and the negative collector plate is the welding mark; the welding mark is in a vortex line shape, the center point of the welding mark is a point O, the vertex angle, away from the point O, of the outer end of the welding mark is a point A, the vertex angle, close to the point O, of the inner end of the welding mark is a point B, the area of a circle which takes the point O as the circle center and passes through the point A is S11, the area of a circle which takes the point O as the circle center and passes through the point B is S12, the area of a radiation surface of the welding mark is S10, the area of the shell bottom is S0, and S10 = S11-S12. And S10 is not less than 1.5% S0 and not more than 8.5% S0. According to the utility model, the welding print is arranged to be in the vortex line shape, so that the length of the welding print can be guaranteed, the area of the radiation surface of the welding print can be reduced, and the welding effect can be effectively improved, the safety performance of the battery can be guaranteed and the processing cost of the battery can be reduced by limiting the area of the radiation surface of the welding print.

The utility model discloses a torsion nut with a pushing structure, which comprises a nut body, a split pushing component and a first pressure-bearing gasket, a first internal thread is arranged in the nut body, a plurality of first mounting holes are arranged on the outer wall of the nut body, the axial direction of the first mounting holes is consistent with that of the nut body, and the split pushing component is arranged in the nut body. The split pushing part is mounted in the first mounting hole, and the bottom of the split pushing part extends out of the first mounting hole to abut against the first pressure-bearing gasket; the split pushing part comprises a torsion bolt and a pressure-bearing column, the pressure-bearing column is arranged in the first mounting hole, the torsion bolt is meshed with threads in the first mounting hole, and the torsion bolt extrudes the pressure-bearing column towards the first pressure-bearing gasket; the torsion nut with the pushing structure and the bolt are simple in structure, reliable in connection, excellent in looseness prevention and capable of preventing the torsion bolt from being damaged.

The utility model provides a winding assembly convenient to wind a cable, and relates to the technical field of winding assemblys.The winding assembly convenient to wind the cable comprises a machine frame, two rotating shafts are symmetrically and rotationally connected to the machine frame, the opposite ends of the two rotating shafts are connected with a winding drum with the interior being of a hollow structure, and the winding drum is connected with the machine frame. A plurality of groups of guide limiting assemblies are arranged on the winding drum; the two-way lead screw rotates so that the two movable discs can move relatively at the same time and move by the same distance, at the moment, under the action of the movable hinge base and the rotary ejector rod, the winding plate moves in the direction of the hollow guide rod, and the position, around the circle center of the winding drum, of the winding plate can be adjusted; according to the winding assembly, the winding diameter of the winding assembly can be adjusted according to the actual situation during use, hard or soft cables can be wound conveniently, the position of the limiting stop lever can be adjusted, the length of the wound cables can be guaranteed while the cables are prevented from being broken, and the application range of the winding assembly is widened.

The utility model provides a free access type limiting fence which is provided with a fence body, the fence body comprises a rear fence door, a front fence door and a linkage mechanism, the linkage mechanism is provided with a linkage rod, the linkage rod is arranged between the rear fence door and the front fence door, and the rear fence door and the front fence door are both hinged to the linkage rod; the rear fence door is rotatably arranged at the rear end of the fence body, and the front fence door is rotatably arranged at the front end of the fence body; a pig enters from the rear pigsty door and pushes the front pigsty door forwards, the front pigsty door rotates forwards and upwards, and the rear pigsty door is driven to rotate forwards and downwards until the rear pigsty door is closed; the pigs retreat from the pigsty body and push the rear pigsty door backwards, the rear pigsty door rotates towards the upper rear portion, meanwhile, the front pigsty door is driven to rotate towards the lower rear portion, the pigs can retreat from the pigsty body smoothly, and the front pigsty door returns to the pigsty body again. The linkage rod is arranged between the rear fence door and the front fence door, synchronous rotation of the rear fence door and the front fence door can be guaranteed, the distance between the rear fence door and the front fence door is controlled, it is guaranteed that the length between the rear fence door and the front fence door can meet the body type of a pig, and the space in the fence body is fully utilized.

A laundry treating apparatus is configured to reduce a volume independently occupied by a driver that rotates a drum in which laundry is accommodated and a volume of a space defined between a rear surface of the drum and a cabinet rear panel.

The invention discloses a mechanical arm motion planning method and system, and the method comprises the steps: obtaining target and obstacle point clouds through a 3D camera, and carrying out the registration to obtain pose information, carrying out the URDF modeling and MoveIt configuration of a mechanical arm, and carrying out the improvement of an RRT-connect algorithm, and the method comprises the steps: introducing a dynamic target bias, directional heuristic sampling and elastic band smoothing algorithm mechanism, the planning efficiency and the path smoothness are improved; performing inverse kinematics solution on the path points to obtain a joint track; optimizing the trajectory by adopting self-adaptive polynomial interpolation, and performing cubic or quintic polynomial interpolation according to the complexity of an interpolation section; and finally, the track is converted into a control instruction through a Modbus TCP protocol, and the mechanical arm is driven to safely move to the target position. According to the method, the planning speed, the track quality and the motion stability of the mechanical arm in the complex environment are remarkably improved.

The application discloses a low-bit matrix calculation device with a floating-point scaling factor and a calculation method thereof. The device comprises a scaling factor processing module, an input module, a matrix calculation module, a floating-point accumulation module and an output module. The method first groups and quantizes weight and eigenvalue matrices to obtain quantization values and floating-point scaling factors; then, the scaling factor product is calculated in advance with a single accumulation length as a grouping unit; then, matrix multiplication and accumulation operation is performed, the result is multiplied by the scaling factor product after being converted into an fp16 or bfp16 format, and then accumulated into a final result; and finally, the result is output after being dequantized. The application simplifies the group-wise calculation process, saves hardware resources, guarantees calculation accuracy, meets different scene requirements and improves calculation efficiency by sharing the scaling factor product and using fp16 or bfp16 as an accumulator.

This utility model discloses a branch grafting device for camellia oleifera planting, belonging to the field of camellia oleifera planting technology. It can stably fix a fixing sleeve and a fixing band to the branch according to the different overall dimensions of the grafted branches, thereby ensuring the two branches at the grafting point are stably fixed. Even in windy weather, it can prevent the grafted branches from shaking and causing grafting failure. The branch grafting device for camellia oleifera planting includes a fixing sleeve, with a fixing band protruding from the side of the fixing sleeve. The fixing band is strip-shaped, and a through hole is horizontally opened on the fixing sleeve. The fixing band is installed through the through hole. A protruding seat is protruding from the outer side of the fixing sleeve, and a rotating cavity is opened inside the protruding seat, communicating with the through hole. An adjusting gear is rotatably installed in the rotating cavity, and meshing teeth are protruding from the outer side of the fixing band. A positioning component is installed inside the adjusting gear, and a positioning hole is opened at the bottom of the rotating cavity.

The utility model discloses a projection lamp structure lens module of combined pattern, including outer frame support still includes mirror seat, heat dissipation board, first imaging lens group, second imaging lens group, third imaging lens group, the heat dissipation board corresponds to install in one side of outer frame support, the mirror seat corresponds to install in the inside of outer frame support, the mirror seat includes three lens assembly space, the second imaging lens group corresponds to install in the lens assembly space of the mirror seat centrally arranged in, first imaging lens group with third imaging lens group respectively correspond to install in the lens assembly space of two sides adjacent with second imaging lens group, each lens assembly space is from outside to inside and is sequentially installed with LED PCB board, fifth lens, fourth lens and film piece, is spliced to become by three lens groups, and the projection pattern range is expanded.

The utility model relates to a kind of refrigerator, the refrigerator includes cabinet, condensing assembly and compressor, condensing assembly includes condenser, condensing fan, condenser extends along the length direction of press machine storehouse arrangement, the top of condenser and the top wall of press machine storehouse are in abutment, to press machine storehouse is separated into air inlet space and exhaust space;Condensing fan is located at the side of condenser towards air inlet space or exhaust space;Compressor is located in exhaust space;The bottom of press machine storehouse is equipped with air inlet, air inlet is connected with air inlet space;The back side of press machine storehouse is equipped with air outlet, air outlet is connected with exhaust space;Air outlet is arranged obliquely upwards, to upwards air outlet towards cabinet back part.Through condenser along the length direction of press machine storehouse extension arrangement, it can guarantee that condenser has enough length and hot area, effectively reduce the height requirement of condenser, and then effectively reduce the overall height of press machine storehouse.Through air outlet obliquely upwards arrangement, upwards air outlet towards cabinet back part, prevent the problem of cabinet back condensation.

This application relates to the fields of corrugated cardboard sorting and image processing technology, and particularly to an intelligent sorting optimization device for corrugated cardboard, comprising: a temperature-sensing compensation module; a control unit determining the optical path calibration angle of a linear laser and the calibration focal length value of an image acquisition module based on a temperature detection signal; the temperature-sensing compensation module also responding to the optical path calibration command and focal length calibration command of the control unit; a vibration suppression module disposed between the support of the feeding conveyor and the detection unit; the control unit having a built-in pixel offset correction subroutine and a real-time calibration trigger program; the control unit is also used to substitute the pixel coordinates of the laser spot after optical path calibration, focal length adjustment, and pixel offset correction into preset calculation formulas for the thickness and length of the corrugated cardboard to obtain the corrected thickness and length of the corrugated cardboard. This application improves detection accuracy and stability, ensuring the accuracy and consistency of the detection results for the length and thickness of the corrugated cardboard.

The utility model discloses a foldable umbrella handle with a fan function, and belongs to the field of umbrella accessories. Comprising a body, the lower end of the body is provided with a first mounting face, the upper end of the body is provided with a second mounting face, a fan cavity, an air duct cavity and a control cavity are formed in the body, the fan cavity is connected with the air duct cavity, and an air inlet communicated with the air duct cavity and an air outlet communicated with the fan cavity are formed in the side wall of the body; the folding handle is movably connected to the first mounting surface and can be unfolded or folded relative to the main body; the mounting piece is used for mounting an umbrella and is connected to the second mounting surface; the fan assembly is arranged in the fan cavity; and the control assembly is arranged in the control cavity, and the control assembly is electrically connected with the fan assembly. The folding handle can move relative to the main body and is unfolded to one end of the main body during use, so that the umbrella handle has a certain length and is convenient to hold; when not used, the umbrella can be folded and stored on one side of the main body, the size of the umbrella handle is reduced, and therefore the umbrella can be conveniently carried.

The utility model relates to the technical field of hydrogen production equipment, in particular to a movable precise cutting device for an ultra-long profile. Comprising a base frame, a baffle arranged at the head end of the base frame, a supporting roller assembly located at the tail of the base frame, a supporting platform moving along the base frame, a profile cutting machine installed on the supporting platform and a positioning assembly used for fixing the supporting platform to the base frame. The supporting platform is arranged on the base frame, the fixed measuring scale is arranged in the length direction of the base frame, the fixing assembly is used for fixing a section bar, and the guiding assembly is used for guiding the movement of the supporting platform on the base frame, so that the supporting platform plays a role in supporting the super-long section bar, prevents the section bar from bending and drooping, and can be moved and adjusted according to the length of the section bar; the overall levelness of the profile is ensured; the supporting platform is fixed to the base frame by arranging the positioning assembly, accidental sliding caused by shaking when the sectional material cutting machine cuts sectional materials is prevented, and the cutting precision is guaranteed.

This invention discloses a fully automatic assembly machine for oxygen delivery tubes, belonging to the field of oxygen delivery tube assembly technology. It includes a support plate and a vertical shaft mounted on top of the support plate. A sleeve is fitted around the outer side of the vertical shaft, and a turntable is fitted around the outer side of the sleeve. Multiple slots are evenly distributed on the outer circumference of the turntable. Clamping units are respectively provided at both ends of the oxygen delivery tube. By setting multiple limiting rods, when the connecting rods and sliders at both ends of the oxygen delivery tube approach the same limiting rod, the limiting rods can limit the connecting rods and sliders, preventing them from moving. This ensures that both ends of the oxygen delivery tube are on the same circumference, thereby ensuring that the lengths left at both ends of the oxygen delivery tube during the winding process are equal, avoiding secondary processing of the oxygen delivery tube later, and improving the efficiency of oxygen delivery tube assembly.

The utility model relates to a damping and sound attenuation paint telescopic rod based on dynamic gap compensation, it includes sleeve, inner tube, pole base and gap compensation mechanism, gap compensation mechanism includes balance seat, compensator, steel ball and return spring, and the rear end of balance seat is fixed with inner tube, and the inside of balance seat has balance cavity, and compensator, steel ball and return spring all are located in balance cavity, and the outer wall of compensator is successively ringed with the radial extension of branch, and steel ball, return spring and branch practical one -to -one correspondence, and spring cavity is seted up in the branch, and return spring is located in spring cavity, and its one end is opposite with steel ball, and the circumferential wall of balance seat is seted up with the limiting hole corresponding with steel ball, and steel ball is embedded in the limiting hole, and is opposite with the inner wall of sleeve. The inner tube of this technical scheme paint telescopic rod is smooth and smooth, and is good in quietness, and then significantly improves the working concentration of operating personnel, and the brushing flatness and operation comfort.

The utility model discloses a kind of harness alignment tin dipping devices, comprising: base;Tin furnace, is set to the top of base;Guide plate, top is provided with several partition plates, each partition plate is arranged at intervals, the edge of guide plate is close to tin furnace upper portion setting;Blocking component, including lifting piece and baffle, lifting piece is set to the top of base, and located between tin furnace and guide plate, when lifting piece lifts baffle, baffle is located flush with the position of one side of guide plate;Clamping component, through rotating piece setting in the top of base, for the clamping of one end of harness.The utility model discloses a kind of harness alignment tin dipping devices by auxiliary staff with harness alignment, to play the role of simplifying staff operation step, belong to harness processing technology field.

This invention relates to the field of electro-hydraulic actuator technology, specifically a high-precision anti-glare actuator, comprising an actuator cylinder, an actuator piston, a drive cylinder, a drive piston, a coil, a GMM rod, a preload cylinder, a bracket, a cold oil tank, an inlet valve, an outlet valve, and an oil pump. The preload cylinder is located below the drive cylinder and includes a limiting chamber and a buffer chamber from top to bottom. The bracket is located inside the buffer chamber, with its upper end face abutting against the lower end face of the GMM rod. The cold oil tank is located outside the preload cylinder. The inlet valve and outlet valve are located in the buffer chamber and the limiting chamber, respectively. The oil pump is installed between the inlet valve and the cold oil tank. This invention achieves rapid heat dissipation of the GMM rod by accelerating oil exchange during the GMM rod retraction process and changing the preload position and filtering oil impurities through oil exchange, thereby improving the actuator's precision and ensuring the long-term stability of the GMM rod, thus enhancing the actuator's anti-glare performance.

The utility model discloses a video acquisition terminal mounting bracket based on a stable communication tower, and belongs to the field of video acquisition terminal mounting brackets. A video acquisition terminal mounting bracket based on a stable communication tower comprises two groups of jackets arranged on the communication tower, and further comprises connecting plates symmetrically arranged between the two groups of jackets; the mounting frame is arranged between the two connecting plates; the mounting rod is rotationally arranged on the mounting frame; the mounting flange is fixedly arranged at the lower end of the mounting rod; the positioning assembly is arranged between the mounting rod and the connecting plate; according to the utility model, the requirements of different extension lengths can be met, the video acquisition terminal is convenient to overhaul, the overhaul efficiency is effectively improved, and the stability of the whole mounting bracket is effectively improved.

The utility model discloses a kind of buried water meter and ground backflow preventer group, belong to municipal engineering industry pipeline technical field, including gate valve well, water meter well and backflow preventer group;The gate valve well and water meter well are all arranged below ground;The backflow preventer group is arranged on ground;Gate valve well and water meter well are respectively provided with meter front gate valve, water meter;The backflow preventer group includes backflow preventer;Meter front gate valve, water meter and backflow preventer are sequentially communicated by pipeline.The utility model of a kind of buried water meter and ground backflow preventer group can effectively solve the water meter well in prior art in construction site setting Because well room size is not enough, cause water meter before and after straight pipe length is not enough to lead to water meter measurement accuracy is not enough and other problems.

The utility model belongs to the technical field of manual stretched noodle processing, and particularly relates to a manual stretched noodle cutting device cutting frame which is characterized in that supporting legs are installed at the two ends of the cutting frame, an adjusting assembly is arranged on the cutting frame, guide plates are installed on the two sides of the upper end of the cutting frame, a sliding base is jointly connected between the two guide plates in a sliding mode, and the sliding base is provided with a sliding block. Electric push rods are installed on the two sides of the bottom end of the sliding base, the telescopic ends of the two electric push rods are jointly connected with a mounting plate, and a mounting assembly is arranged on the mounting plate. Through the arrangement of the adjusting assembly, the position of the cutter can be adjusted, so that the cutting position of the stretched noodles can be adjusted according to requirements, the required length of the stretched noodles is ensured, the flexibility is improved, the labor amount of manually holding the cutter for cutting is reduced, and the cutting efficiency is improved; and the cutter can be detached and replaced through the arrangement of the mounting assembly, so that the cutting effect of the stretched noodles is guaranteed, the phenomena of abrasion, rusting and the like caused by long-time use of the cutter are avoided, and replacement is convenient.

This utility model relates to the field of medical cutting equipment technology, and discloses an automatic winding and cutting device for medical biodegradable fibers. It includes a base plate, a U-shaped fixing frame fixedly connected to the top of the base plate, a transmission component at the bottom of the mounting plate, a winding component at the top of the transmission component, a lifting component at the top of the base plate, and a cutting component between the top and bottom of the fixing frame. This utility model mounts a winding roller on the winding component, and the transmission component drives the winding roller to automatically wind the thread, eliminating manual contact throughout the process and avoiding suture contamination. Motor drive ensures stable winding, solving the problem of handling high-elongation sutures. After winding to a preset length, the lifting component pushes the support platform to precisely align with the suture, and the cutting component drives the cutting shears to cut the suture. Mechanical positioning and cutting ensure the length meets specifications, reducing costs. Full automation significantly improves efficiency, solves the pain points of traditional manual processing, and ensures product qualification rates.

This invention discloses an installation method for a hydraulic coupling in a marine shafting system. The method involves first fitting the hydraulic coupling onto the first shaft, then aligning the first and second shafts, subsequently adjusting the positions of the inner and outer sleeves of the hydraulic coupling, and finally installing the hydraulic coupling accessories. This invention enables rapid installation of the hydraulic coupling, improving installation efficiency and reducing damage to the inner surface of the inner sleeve and the outer surface of the shaft system during the inner sleeve positioning process. Furthermore, it ensures that the length of the connection between the two shaft segments is as consistent as possible after the hydraulic coupling is rotated, resulting in more balanced torque transmission.