106results about How to "Avoid pressure loss" patented technology

The invention belongs to a part surface treatment technology, and relates to a multi-runner blade inner cavity and air film hole abrasive particle flow polishing and grinding device and a using method. The device is composed of an upper hydraulic material grinding bin, a lower hydraulic material grinding bin and a blade workbench of abrasive particle flow equipment. The blade workbench can prevent pressure loss caused by abrasive leakage in abrasive flow polishing and grinding and meanwhile avoid flow offset caused by simultaneous entering of the abrasive at the communicating positions of inner cavity flow channels of a multi-flow-channel blade, so that all the flow channels of the blade have a good polishing and grinding effect. The defects that the inner cavity of the power turbine blade interferes with the air film hole wall structure, and the surface strengthening mode is unreachable are overcome, the grinding materials are made to move repeatedly in the inner cavity of the blade through repeated pressurization of the hydraulic cylinder, and the uniform strengthening effect is achieved at the inner cavity of the blade and the inner and outer hole openings of the air film hole. According to the method, only a small amount of grinding materials are consumed and are far less than vibration finishing grinding materials, the machining cost is lower, the dust amount is smaller, and noise is lower. According to the device, the inner cavity of the whole guide vane is strengthened within 20 min through abrasive flow, and the surface strengthening machining efficiency is high.

The invention discloses drip irrigation equipment for vegetable greenhouse planting and a use method.The drip irrigation equipment comprises a mixing structure, a water pumping structure, a stirring structure, a control structure, a filtering structure, a transmission structure, a cleaning structure and a drip irrigation structure, and the mixing structure comprises a mixing bin, a driving bin, a fixing block, a sliding rod and a pesticide mixing disc; the inner top wall of the mixing structure is fixedly connected with the output end of the water pumping structure, a water pipe is connected to the outer wall of a suction pipe, a water suction pump is started, the water suction pump enables water to enter a driving bin through the suction pipe and an output pipe, and water flow impacts an impeller to enable the impeller to drive a stirring rod to rotate. The stirring rod drives the stirring block to mix fertilizer injected into the mixing bin from the pesticide injection port with water, the stirring block drives the sliding rod to move upwards in the fixed block through the pushing block and move downwards under the gravity action of the pesticide mixing disc, and the sliding rod drives the pesticide mixing disc to move up and down, so that the fertilizer is fully mixed with the water, and the mixing efficiency is improved. And manual mixing in advance is not needed.

The application discloses a soil and water loss prevention and control interception device, and belongs to the field of soil and water loss prevention and control.The interception device comprises an anchor mechanism, an interception net and a gasket.The anchor mechanism is buried in soil, which can improve the anti-aging, anti-corrosion and anti-wear performance, avoid damage of components caused by natural environment erosion in long-term outdoor use, prolong the service life, reduce the maintenance and replacement cost, enhance the fixing effect of the anchor mechanism on the interception net, provide stronger pulling force for the spiral anchor, prevent the interception net from shifting, guarantee the interception reliability of the slope main body soil and water loss, improve the installation and dismounting convenience of the inner hexagonal groove, and avoid damage of the interception net caused by the gasket.

The invention discloses high-efficiency box cover assembling equipment, which belongs to the technical field of product assembling and comprises a machine table, and two groups of transfer mechanisms, assembling mechanisms and second belt conveyors are symmetrically mounted on the upper side of the machine table; a first belt conveyor and a feeding mechanism are mounted on the machine table; a first positioning assembly is mounted on the first belt conveyor; the transfer mechanism comprises a transfer material transferring assembly and a transfer positioning assembly which are installed on the machine table. The assembling mechanism comprises an assembling linear module, an assembling material moving assembly, an assembling pressing table assembly and a material taking and pressing assembly. The assembling linear module is mounted on the machine table, a second mounting plate is fixedly mounted at the moving end of the assembling linear module, an assembling material moving assembly is mounted on the left side of the second mounting plate, and a material taking and pressing assembly is mounted on the right side of the second mounting plate; an assembling pressing table assembly is installed on the machine table and located between the transfer positioning assembly and the second belt conveyor. In this way, the precision of the box cover is guaranteed, the precision of the sealing ring is guaranteed, and assembling is more accurate.

This utility model provides a motor lifting base, including a base plate and a top plate. A translation bracket is slidably connected to the top plate, and a support foot is fixedly connected to the top of the translation bracket. The support foot is used to install motor components. Translation drive components are connected to both sides of the translation bracket via screws and nuts. An adjusting rod one is rotatably connected to one side of the translation bracket via an extension rod, and an adjusting rod two is rotatably connected to the top of the base plate. The inner wall of adjusting rod one is slidably connected to the outside of adjusting rod two. The drive motor drives the synchronous component to drive the adjusting screws on both sides, realizing the synchronous and stable movement of the translation bracket. This facilitates the formation of an open installation platform in confined spaces. At the same time, adjusting rod one and adjusting rod two adopt a slanted platform compression and spring reset structure. A linear motor drives the compression slanted platform to push the positioning pin into the positioning hole, realizing rapid locking of length and angle, enhancing lateral support strength and improving adjustment efficiency, and avoiding damage to the bracket structure during motor installation.

The present invention discloses an assembly device capable of detecting sealing for automobile vacuum booster production, which relates to the technical field of sealing detection, and comprises a chassis and a pressure gauge, wherein the four corners of the chassis are symmetrically fixedly connected with limit rods, and the top of the limit rod is fixedly connected with a cross beam, the middle of the limit rod is fixedly connected with a limit plate, and the surface of the limit plate is fixedly connected with a first contact, a through groove is provided in the middle of the cross beam, and a hydraulic rod is fixedly connected with a pressure plate below the cross beam, a pressure plate is fixedly connected with a pressure plate below the hydraulic rod, and second contacts are symmetrically arranged on the left and right sides of the pressure plate, a pressure seat is fixedly connected with a pressure seat below the pressure plate, and a sealing cavity is arranged in the middle of the pressure seat, the pressure gauge is arranged on the right side of the pressure seat, pressure components are symmetrically arranged around the sealing cavity, and a lifting rod is fixedly connected in the sealing cavity, and a material unloading component is arranged below the lifting rod. After the vacuum booster is assembled, the present invention can immediately perform sealing detection on the product, and it is also convenient to unload the product.

The utility model belongs to motor, fan manufacturing technical field, concretely for coil motor pin and whole board PCBA automatic crest soldering, cutting device, including first rack, the upper side of first rack is fixed with whole board combination carrier, the upper side of first rack is fixed with welding finished product transfer horizontal movement module group in the upper end of whole board combination carrier, the present application improves traditional solid tin wire and synchronous soldering mode of electric soldering iron, uses liquid tin furnace crest spraying type soldering, ensures product soldering and so on soldering leakage, cold welding, false welding and other defect problems, special carrier design, whole board PCBA and stator enter line positioning combination, add spring buckle force positioning again, and the assembly product positioning is firm, and the quality risk caused by the unrealized combination of spare parts will not appear.

The application discloses a kind of inductor full-automatic production device, including rack, the shell conveying assembly for conveying is equipped on the rack, along the direction of movement of the conveying assembly, the capacitor loading assembly for loading capacitor band is sequentially equipped on the rack, the resistance loading assembly for loading resistance band and the IC band loading assembly for loading IC band are sequentially equipped on the rack, the welding assembly for welding the capacitor band, resistance band and IC band on the shell is further equipped on the rack.The beneficial effects of the application mainly include:high degree of automation, realize full-automatic capacitor, resistance and IC band cutting bending forming and welding, without manual operation throughout, so as to improve processing efficiency when mass production, at the same time, the technical effects of reducing labor cost, processing cost and labor intensity can make enterprises effectively utilize human resources, and collection is convenient.

The invention discloses diesel engine crankshaft press-fitting equipment, and belongs to the technical field of diesel engine assembly.The diesel engine crankshaft press-fitting equipment comprises a rack, brackets are fixedly mounted on the two sides of the top of the rack, a same assembly table is slidably mounted in the two brackets, clamps are arranged on the two sides of the top of the assembly table, and moving mechanisms are arranged in the brackets; a jacking mechanism is arranged in the rack, the jacking mechanism controls clamping, jacking and rotating of the assembly table, and a press-fitting detection mechanism is arranged at the top of the rack; the press-fitting detection mechanism comprises a door frame, a mounting box, a lifting plate, a detection plate and a detection cylinder. The assembling table can be controlled to ascend, descend and rotate through the arranged jacking mechanism, so that a crankshaft is convenient to assemble, in-place crankshaft press-fitting detection and smooth rotation detection can be achieved at the same time through the arranged press-fitting detection mechanism, press-fitting accuracy is guaranteed, defective products are avoided, press-fitting detection is achieved by applying constant pressure, and the crankshaft press-fitting detection efficiency is improved. And the product is prevented from being damaged.

This utility model discloses a clamping and rotating module for cosmetic appearance inspection, relating to the field of cosmetic appearance inspection technology. It includes a support plate and a moving assembly. A support frame is mounted on one side of the support plate, and the moving assembly is located on one side of the support plate. The moving assembly includes a first motor, a gearbox, a forward and reverse threaded screw, a first slide, and a second slide. The first motor is mounted on one side of the support frame, and the output shaft of the first motor is connected to the gearbox. The output end of the gearbox is connected to the forward and reverse threaded screw. Through the moving assembly, when an external robotic arm places an open cosmetic bottle upside down between the first and second slides, the first motor drives the forward and reverse threaded screw to rotate via the gearbox. At this time, the support frame restricts the rotation direction of the first and second slides, allowing the upper and lower clamps to move centrally, thereby automatically clamping the cosmetic bottle through the pressure head and support block.

The utility model discloses a surge protector convenient for wiring, which is applied to the field of surge protectors and comprises a lower shell and an upper shell, and metal connecting blocks are symmetrically clamped between the lower shell and the upper shell. According to the utility model, the sliding groove is formed in the upper shell, when the sliding block in the sliding groove moves, the pressing block is driven to move downwards, and when an external wire enters the protector through the interfaces at the two ends of the protector, the external wire can be firmly pressed on the conductive block by the pressing block, and the external wire does not need to be screwed and fixed by using a bolt; the inner groove is formed in the upper shell, after the limiting block is pressed to be shrunk into the inner groove and the lower shell and the upper shell are buckled, the two limiting frames on the lower shell can be clamped on the two sides of the upper shell, and after the limiting block is loosened, the limiting block and the limiting frames are clamped with each other; therefore, the lower shell and the upper shell of the surge protector are limited, bolts do not need to be used, and the assembling speed is increased.

The invention provides a lifting platform, and relates to the field of aerial work platforms. The lifting platform comprises a platform main body, an arm frame, a driving oil cylinder device, a working platform and an integrated power unit; one end of the arm frame is connected with the platform main body; the driving oil cylinder device is connected with the other end of the arm support; the working platform is connected with the driving oil cylinder device; the integrated power unit is arranged on the working platform. The integrated power unit is arranged on the working platform, the integrated power unit is used for providing power for the driving oil cylinder device, so that the driving oil cylinder device drives the working platform to move, and then the position of the working platform is changed; the integrated power unit changes along with the position change of the working platform, and the relative position of the integrated power unit and the driving oil cylinder device is basically unchanged, so that pressure loss caused by long-distance hydraulic power transmission of a power unit on a traditional chassis or a rotary table through a pipeline is avoided, and the energy utilization rate is greatly increased; and the service time of the vehicle is prolonged.

The present invention discloses a Type-C interface assembly detection packaging machine, which includes a feeding cutting and plugging terminal mechanism, a lateral transport and transplanting module, a riveting mechanism, a tail material cutting mechanism, a rotary transport and electrical measurement mechanism, a CCD detection module and a carrier tape packaging mechanism arranged on a frame. The lateral transport and transplanting module sequentially transports the Type-C interface inserted by the feeding cutting and plugging terminal mechanism on its right side to the riveting mechanism and the tail material cutting mechanism on its left side, and the Type-C interface after riveting and removing the tail material is transported to the rotary transport and electrical measurement mechanism for high-voltage conduction test. After the conduction test, the product is transported to the left CCD detection module for appearance inspection, and after the appearance inspection, the product is transported to the carrier tape packaging mechanism for packaging. Through the above method, the present invention can automatically assemble, rivet, cut, conduct, and perform high-voltage tests, and the CCD detects the appearance and size of the product and completes the carrier tape packaging.

The utility model discloses a five-pointed star type high-temperature-resistant hydrogen sulfide-resistant screw pump sealing impact device, the main body structure of the five-pointed star type high-temperature-resistant hydrogen sulfide-resistant screw pump sealing impact device is a lower sealing occlusion ring and an upper sealing occlusion ring which are occluded up and down, and the five-pointed star type high-temperature-resistant hydrogen sulfide-resistant screw pump sealing impact device comprises the lower sealing occlusion ring and the upper sealing occlusion ring, a pentagram-shaped occlusion groove is formed in the bottom surface of the upper sealing occlusion ring, the pentagram-shaped occlusion groove and the pentagram-shaped occlusion convex teeth are mutually occluded and clamped, and newly synthesized difluoro vulcanized phenyl silicone rubber is adopted as a main body material. Through the arrangement of the lower sealing occlusion ring and the upper sealing occlusion ring, close fit of the lower sealing occlusion ring and the upper sealing occlusion ring can be achieved, the occlusion surface is of a five-pointed star-shaped three-dimensional structure distributed in the radial direction, the structure has good impact resistance and scouring resistance, the overall structure is simple in process, installation is convenient, the service life is long, and the service life is long. The stable sealing performance of the sealing device in a high-temperature and hydrogen sulfide environment is ensured, and medium leakage is prevented.

The utility model provides a square cell sealing nail welding with anchor clamps, including bottom plate, and set up in the bottom plate's benchmark fixed plate, floating fixed plate, intermediate fixed plate, long side fixed plate and cushion block, wherein: benchmark fixed plate with floating fixed plate opposite setting, intermediate fixed plate with long side fixed plate opposite setting, floating fixed plate at least partial can be close to or far from benchmark fixed plate, long side fixed plate at least partial can be close to or far from intermediate fixed plate, cushion block is used for supporting the battery, and the cushion block is between intermediate fixed plate and long side fixed plate, first guide shaft is configured on the cushion block, first guide shaft with bottom plate sliding connection is established, and first buffer spring is configured between the cushion block and bottom plate. The utility model discloses cushion block floating assembly, can avoid welding plate and battery hard contact, and can eliminate the longitudinal assembly error of battery simultaneously.

The utility model provides a demoulding ejection device for plastic valve processing, which comprises a base which is detachably arranged on a base and is positioned below a lower mould, the mould is arranged on the base through a support rod, and a plurality of telescopic push rods, a mounting plate, a first linear sliding table, a second linear sliding table, a first ejector pin and a third linear sliding table are vertically arranged at the top of the base. And a second ejector pin is vertically and detachably arranged on a sliding seat of the fourth linear sliding table. According to the demoulding and ejecting device for processing the plastic valve, the basic requirement of demoulding and ejecting a valve workpiece from a lower mould can be met, and the horizontal position of the ejector pin can be flexibly and conveniently adjusted, so that the ejector pin can eject lower moulds and products with various sizes and specifications; therefore, the application range of the device is widened.

The utility model discloses a biomass circulating fluidized bed boiler return feeder adjusting device which comprises a return feeder body, the return feeder body is composed of two air chamber parts with independent functions, each air chamber part comprises a fluidization air chamber and a return air chamber, and a discharge inclined pipe of the return feeder body is fixedly connected with a circulating fluidized bed boiler. A vertical pipe on the material returning device body is connected with a cyclone separator, the material returning device body comprises a driving adjusting structure, the driving adjusting structure comprises a fluidization air pipe and a material returning air pipe which are connected with the fluidization air chamber and the material returning air chamber respectively, and the driving adjusting structure further comprises an independent side blowing pipe bypass. The independent side blowing pipe bypass is fed into the material returning device body from the side face of the fluidization air pipe, and the fluidization air pipe and the material returning air pipe are led into the material returning device body from the bottom of the material returning device body and are respectively connected with an external fan.

The utility model discloses a battery pack upper shell positioning welding detection device which comprises a rack and a welding device arranged on the rack or on one side of the rack, the rack is provided with a set of positioning assemblies used for positioning an upper shell, and the positioning assemblies are located under the positions where studs need to be welded to the upper shell; the outer side of the positioning assembly is provided with a limiting assembly used for limiting the upper shell on the positioning assembly, the rack is further provided with an overturning frame in a pivot mode, and the overturning frame can be driven by a driving assembly to be pressed on the upper surface of the upper shell. The overturning frame is further provided with a detection assembly used for detecting the welding firmness of the stud. The automatic welding device has the advantages that the design is exquisite, full-automatic positioning, welding and detecting of the upper shell are achieved, whole-process automatic operation is achieved, the working efficiency is greatly improved, in addition, interference can be automatically avoided in the feeding and working process, and the working efficiency and the yield are greatly improved.

The utility model belongs to the field of gas flow metering, and particularly relates to a gas flow metering device. The gas flow metering device comprises a cover body, a shell, a rectification part and a metering assembly, an opening is formed in the shell, the cover body covers the opening and forms an inner cavity, a flow passing opening is formed in the rectification part, the rectification part divides the inner cavity into a gas inlet cavity and a rectification cavity, the gas inlet cavity and the rectification cavity are communicated through the flow passing opening, and the metering assembly comprises a gas flow inlet. And the airflow inlet and the overflowing opening are staggered. According to the gas flow metering device, the reasonable layout of the rectification part and the staggered arrangement of the rectification part and the gas flow inlet act together to reduce the pressure loss of the gas flow in the metering process, so that the overall gas flow transmission efficiency and the metering accuracy are improved.

This utility model provides an automatic positioning and suction bag device for large roll paper packaging bags, relating to the field of packaging bag suction technology. It includes a base plate, a support seat mounted on the top of the base plate, a lifting mechanism on the inner side of the support seat, a first mounting frame mounted above the support seat, a feeding chamber mounted above the first mounting frame, a pressure plate mounted on the inner side of the feeding chamber, and a discharging mechanism below the first suction cup and connecting frame. The device uses a suction bag assembly to replace traditional mechanical gripping. The first and second suction cups use negative pressure to suction the edge of the packaging bag opening, avoiding bag damage or detachment caused by improper gripping force, significantly reducing the packaging bag breakage rate. Simultaneously, the combined action of a laser sensor and a second hydraulic cylinder ensures minimal deviation in the bag picking position, guaranteeing precise alignment of the bag opening with the large roll paper conveying path, greatly reducing the bag-fitting defect rate and subsequent sealing leakage problems.

The present invention relates to the field of pallet technology, and in particular to an anti-breakage adjustable equidistant battery cell clamping pallet, including a pallet and a bottom plate, etc.; the pallet is slidably connected with the bottom plate. The present invention realizes that by pushing the limit frame to slide downward on the pallet, the overall height of the pallet is reduced, so that more pallets can be stacked in the same storage space, and the overall height of the pallet is reduced to reduce the risk of shaking and collapsing during transportation; two adjacent baffles overlap and receive each other, and then the area of ​​the bottom plate carrying the battery cell is covered, so as to reduce the dust covered on the bottom plate during long-term use and storage, and avoid dust pollution of the battery cell; the dust attached to the side of the baffle is blown away by the air bag, the dust on the side of the baffle is reduced, and dust pollution is further avoided; the air hole is blocked by the top rod, so that part of the gas is left in the air bag, and then the battery cell on the bottom plate is buffered and protected, so as to avoid the battery cell from being crushed and the protection ability of the battery cell during transportation is improved.

This utility model discloses a fully automatic riveting and dispensing device, including a frame with a carrier for supporting the workpiece on the frame. A movable block, movable vertically relative to the carrier, is located directly above the carrier. A column is fixed to the bottom of the movable block, and a magnet is fixed to the bottom of the column. The bottom of the magnet has a receiving groove adapted to the head of the rivet. A through groove is formed on the column, one end of which connects to an inlet on the movable block, and the other end connects to an outlet on the magnet. The diameter of the outlet is smaller than the diameter of the rivet head. The advantages of this utility model are mainly reflected in its ingenious design. The magnet attracts the rivet, preventing accidental drop during riveting and improving riveting accuracy. After riveting, the workpiece is dispensed with glue through the inlet, through groove, and outlet. This dispensing method is simple and convenient, eliminating the need to transfer the workpiece and improving work efficiency.

The embodiment of the present invention discloses a combination valve and a smart toilet, comprising a combination valve body, and a core solenoid valve, a check valve in the combination valve body, and a flushing solenoid valve arranged on the combination valve body; the combination valve body comprises a first end and a second end; the check valve in the combination valve body comprises a first check valve in the combination valve body and a second check valve in the combination valve body; wherein the core solenoid valve and the flushing solenoid valve are arranged in parallel at the second end of the combination valve body; the check valve in the combination valve body is located at the first end of the combination valve body. The embodiment of the present invention simplifies the structure of the combination valve and avoids water flow pressure loss.

The utility model discloses a gas-liquid separation device and a heat pump system, and relates to the technical field of heat pumps, the heat pump system comprises a first heat exchanger, the first heat exchanger comprises at least two heat exchange parts, the gas-liquid separation device comprises at least two gas-liquid separation cavities, and the gas-liquid separation cavities are communicated with the heat exchange parts. Each gas-liquid separation cavity is provided with a refrigerant inlet and a liquid outlet, and the refrigerant inlets and the liquid outlets of different gas-liquid separation cavities are arranged to communicate with different heat exchange parts in the first heat exchanger. According to the technical scheme, the heat exchange effect and the system energy efficiency of the heat exchanger can be improved.

The invention belongs to the technical field of blast furnace blast, and relates to blast furnace uniform blast equipment and method for changing the inclination angle of a hot air branch pipe. The hot air branch pipes are evenly distributed in the circumferential direction of the bustle pipe, meanwhile, the inclined included angle alpha is formed between the axis of the straight pipe section of each hot air branch pipe and the radial plane of the bustle pipe, and due to the design, right-angle turning in the hot air flowing process is structurally reduced, pressure loss and vortex dissipation caused by the right-angle turning are reduced, and the heat exchange efficiency is improved. The main guide direction of the original tangential flow speed of hot air in the hot air bustle pipe is maintained, it is guaranteed that the air quantity entering all the branch pipes is basically consistent, the air quantity distribution uniformity of all the tuyeres of the blast furnace is remarkably improved, and good flow stability and adaptability are achieved. Numerical simulation verifies that the comprehensive blast uniformity is optimal under the working condition that the hot air branch pipe is inclined by 75 degrees. The blast furnace can effectively improve blast uniformity, reduce airflow deviation and energy loss and improve the stability and smelting efficiency of the blast furnace, and has good industrial application value.

The utility model relates to antenna technology field of attaching, and specifically disclose a kind of antenna automatic attaching fixture, antenna automatic attaching fixture includes pedestal, first telescopic mechanism, floating component, first shaping block, second telescopic mechanism and second shaping block, the bottom of pedestal is provided with first suction hole, first telescopic mechanism is located in pedestal, first telescopic mechanism is connected with floating component to make floating component movable arrangement in first direction, floating component is connected with first shaping block to make first shaping block movable arrangement in second direction, first direction is perpendicular to second direction, second telescopic mechanism is located in pedestal, and second telescopic mechanism is offset setting relative to first telescopic mechanism, second telescopic mechanism is connected with second shaping block to make second shaping block movable arrangement in third direction, the bottom of second shaping block is provided with second suction hole, third direction and first direction and second direction intersect;The above scheme can realize the constraint and extension of antenna three-dimensional structure, so that antenna has the characteristics of good consistency of attaching precision and high attaching operation efficiency when attaching to mobile phone shell.

The utility model relates to rock wool production and processing equipment technical field, concretely refers to a kind of rock wool cross cutting equipment, including workbench, cutting saw, drive mechanism, lifting mechanism and limiting mechanism;Workbench top is fixedly connected with mounting frame, and slidingly set up movable box in mounting frame;Cutting saw is movably arranged in mounting frame, and the top of cutting saw is slidably connected with the bottom of movable box;Drive mechanism is set on movable box, and one end of drive mechanism is connected with cutting saw for driving cutting saw movement;Lifting mechanism is set on mounting frame;Limiting mechanism is set on movable box, and limiting mechanism is provided with two groups, and two groups of limiting mechanism are located at the two sides of cutting saw respectively.The utility model is set between drive mechanism and lifting mechanism by cooperation, and driving motor works drives cutting saw edge to move downward reciprocating motion, realizes the cutting operation of saw blade to rock wool, optimizes the structure of equipment, reduces the production cost and the maintenance cost of equipment.

The invention discloses a metal octagonal gasket with high durability and matching degree and a design method thereof, comprising an octagonal gasket body, and circular grooves are distributed on the sealing contact ring surfaces on both sides of the octagonal gasket body, and the bottom of the circular groove is connected to the rubber round block through a spring. The invention is beneficial in that: the spring connected between the rubber round block and the circular groove is used to buffer the extrusion strength of the flange on the sealing contact ring surface, so as to prevent the octagonal gasket from being seriously damaged by the external force due to instantaneous excessive pressure, and ensure that the sealing contact strength between the octagonal gasket body and the flange is within a reasonable range; according to the width of the sealing contact ring surface on the flange, combined with the limited width between the inner and outer ring surfaces of the octagonal gasket body and the angle between the sealing contact ring surface and the oblique ring surface located on the octagonal gasket body, the oblique ring surface width and the sealing contact ring surface width of the octagonal gasket body can be determined quickly and conveniently, which simplifies the cumbersome design calculation and improves the matching degree of the seal between the octagonal gasket and the flange.

The utility model relates to the technical field of production of steel cords, in particular to a pipeline leakage alarm device, which comprises a liquid conveying pipeline, a pipeline leakage alarm device and a pipeline leakage alarm device, the supporting plate is arranged below the liquid conveying pipeline, and the supporting plate is insulated from the liquid conveying pipeline; the alarm circuit comprises a first electrode and a second electrode, and the first electrode is connected to the liquid conveying pipeline. The first electrode is arranged on the pipeline, the second electrode is arranged on the supporting plate below the pipeline, whether the pipeline leaks or not can be monitored on line in real time, when conductive liquid leaked from the pipeline continuously drips onto the supporting plate and an alarm circuit forms a closed loop, alarm can be triggered, and the alarm system is reliable in work and low in cost. Leakage of the pipeline is reduced to the maximum extent, environmental protection pressure and economic loss are avoided, and the device can be used for all conductive liquid conveying pipelines of companies.

This utility model discloses a slide drying plate for improving loading safety, belonging to the technical field of pathological laboratory equipment. It includes: a slide drying plate body, the top surface of which is a slide placement surface and has at least one row of slide drying slots; a baffle separating adjacent rows of slide drying slots; a flexible pad disposed in the slide drying slots, its shape matching the slide drying slots and the inner walls of both fitting together; each side of the flexible pad has protruding limiting posts on its inner wall, which, when a slide is placed in the slide drying slot, utilizes the elastic deformation of the limiting posts to achieve an "interference fit" clamping of the slide, effectively preventing the slide from slipping out or falling off during handling, tilting, or vibration, thus improving loading safety; a recessed slide retrieval slot is provided on the side of the baffle facing the slide drying slot, located at the end of the slide drying slot and connected to it, allowing the operator to insert their fingers to retrieve the slide clamped between the limiting posts, solving the problem of "difficult to remove" after secure clamping.