136 results about "Rubber membrane" patented technology

The invention discloses a special bottom plate drainer for a rubber membrane sealing type gas holder, which comprises a drainer body arranged above the liquid level of a water accumulation pool; one end of the inlet pipe is connected with the drainer body, and the other end of the inlet pipe is connected with a water outlet of a bottom plate of the gas holder; one end of the U-shaped pipe is connected with the drainer body; and the condensed water discharge port is used for discharging condensed water into the water accumulation pool, and the condensed water discharge port is connected with the other end of the U-shaped pipe. The drainer body is lifted to the position above the liquid level of the water accumulation pool from the bottom of the water accumulation pool, condensate water on the bottom plate is safely and efficiently drained, meanwhile, it is ensured that the drainer body cannot be soaked in the condensate water, and the service life of the drainer body is prolonged. The drainer body is lifted from the bottom of the water accumulation pool to the position above the liquid level of the water accumulation pool, so that people do not need to enter the water accumulation pool when the drainer body is cleaned, and the cleaning efficiency is greatly improved.

The invention discloses a precise temperature control fermentation device for tea production, and belongs to the field of tea production equipment.The precise temperature control fermentation device for tea production comprises a device body, an electric control box is fixedly installed on the side edge of the device body, and a plurality of supporting frames are arranged in an inner cavity of the device body at equal intervals; by means of the structure provided with the lifting rod, when the tea leaves are fermented for a certain time or the temperature in the middle is too high in the tea leaf fermentation process, the tea leaves in the middle can be pushed upwards, and then the tea leaves in the middle are dispersed to the periphery from the upper side through expansion of the lifting rod; by arranging a stacking plate and a rubber film, after the fermented tea leaves are subjected to heat dissipation, a linkage rod can drive the stacking plate to move towards the middle until the tea leaves are gathered to the middle, and then the fermented tea leaves can be stacked towards the middle by turning over a rotating motor.

The present invention relates to the technical field of photovoltaic cables, and more specifically, to a cold-resistant and ice-resistant cable for photovoltaic power stations. The cable comprises a conductor layer, an elastic insulating layer, and a protective layer arranged from the inside out. The cable further comprises a buffer assembly, and the buffer assembly comprises a fixed part and a movable part. In the present invention, when ice particles contact the surface of the cable, the graphene coating deforms inward, so that the impact of the ice particles is transmitted through the graphene coating to the rubber membrane layer, and the rubber membrane layer then drives the movable rod to move into the insulating tube. During the movement, the rubber membrane layer itself squeezes the outer shielding layer and the inner insulating layer, causing the outer shielding layer and the inner insulating layer to undergo elastic deformation, and the movement of the movable rod drives the connecting ring to move downward, and then pulls the auxiliary elastic ropes on both sides through the connecting ring, causing the auxiliary elastic ropes to undergo elastic deformation, further eliminating the impact of the ice particles, thereby achieving force unloading treatment of the impact and avoiding damage to the cable cortex.

The invention belongs to the technical field of underwater construction and protection engineering, and discloses a grouting construction and flushing visual simulation system and method for underwater protection engineering, and the system comprises a circulating water flow part which comprises a water pump, a circulating water tank and a visual simulation water tank which are sequentially connected end to end through a water pipe; the centralized control part comprises a data control unit, a variable frequency controller for controlling the rotation of the water pump, a regulating valve, a flow meter, a grouting assembly and an underwater camera device which are electrically connected; the deformable base module comprises a plurality of electric telescopic supports distributed on the periphery of the basic model body and a flexible rubber film covering all the electric telescopic supports in a sealed mode. The system adopts an electric control closed-loop adjusting structure, can control the pump speed and the valve opening degree, realizes that the flow velocity fluctuation precision is controlled within + / -1%, and can simulate various dynamic flow fields; the deformable scouring foundation module can generate different bottom bed conditions according to test requirements, and the working condition reproduction capacity and adaptability of the system are greatly improved.

The utility model discloses a high-speed dispersion machine for preparing flame-retardant ecological synthetic leather based on solvent-free foaming, and relates to the technical field of synthetic leather preparation, the high-speed dispersion machine comprises a frame body, and a controller is arranged on the side wall of the frame body; the top of the frame body is fixedly connected with a top cover, and feeding ports for feeding are embedded in the front and rear ends of the top of the top cover; the top of the top cover is fixedly connected with a reducer; the driving end of the reducer is fixedly connected with the upper end of the stirring rod; the speed reducer is used for driving the stirring rod to rotate, while the stirring rod rotates, the electric push rod drives the piston plate to move, air is pressed into the connecting pipe, the stirring rod and a cavity in the transverse rod, the rubber film is expanded, and the expanded rubber film makes contact with the inner side wall of the frame body to extrude materials. The dynamic extrusion process contributes to further dispersion and mixing of the materials, and at the same time may promote chemical reaction or physical combination among the materials.

An elastic membrane having a physical property required for each portion of the elastic membrane and capable of uniformly polishing a workpiece is disclosed. The elastic membrane includes: a contact portion having a workpiece pressing surface for pressing a workpiece against a polishing surface; and a partition wall extending upward from the contact portion and forming a pressure chamber. The contact portion and at least a part of the partition wall are composed of a first rubber structure and a second rubber structure which are integrally formed, the first rubber structure has a first hardness, and the second rubber structure has a second hardness lower than the first hardness, the first rubber structure includes the workpiece pressing surface, and the second rubber structure includes the at least a part of the partition wall.

The utility model relates to a self-stabilizing type water plugging air bag which comprises an air bag body, one end of the air bag body is provided with a conical compression assembly, the conical compression assembly comprises a hinge ring and a plurality of steel rods hinged to the hinge ring in a radiation mode, and after the steel rods are evenly radiated, the two sides of the steel rods are connected with rubber films to form conical compression faces. The outer ends of the steel rods are connected with annular rubber sleeves, an inflation nozzle is arranged at the end, provided with the conical compression assembly, of the air bag body, the inflation nozzle is connected through an inflation pipe and then penetrates out of the hinge ring, and the inflation pipe is connected with the hinge ring in a sealed mode. The utility model discloses can block the inspection well upstream and also can block the inspection well downstream, and can realize self-stabilization limit, use scene is wide, safety and reliability are high.

The utility model discloses an auxiliary rubber diaphragm feeding mechanism, and relates to the technical field of rubber processing. Comprising a bottom plate, a round opening and a rectangular opening are formed in the bottom plate, a flange is fixedly connected to the top of the bottom plate and located above the round opening, a limiting barrel is fixedly connected to the top of the flange, a spring is fixedly connected to the inner wall of the limiting barrel, and a guide piece is fixedly connected to the end, away from the limiting barrel, of the spring; the guide sheet is arc-shaped; a driving mechanism is arranged on the bottom plate, and a feeding mechanism is arranged at the bottom of the bottom plate. During feeding, the push plate moves upwards to extrude the guide piece to enable the spring to contract, the arc-shaped guide piece is utilized to ensure that the rubber diaphragm is always located in the center of the push plate, the feeding precision of the rubber diaphragm is greatly ensured, the machining quality of the rubber diaphragm is further improved, the equipment is high in automation degree, errors caused by manual operation are effectively reduced, and the production efficiency is improved. And the production efficiency is improved, and the yield is high.

The utility model discloses a magnetorheological sound insulation cotton damping with anti -interference structure relates to sound insulation material technical field, including sound insulation cotton layer and anti -interference structure layer. The composite electromagnetic shielding layer of the magnetorheological sound insulation cotton damping with anti -interference structure outermost layer is alternately woven composite by nanometer copper net and graphene film, can be all -round shielding to electromagnetic interference, creates stable electromagnetic environment for the inside magnetorheological liquid filling cavity, effectively avoids the outside electromagnetic signal interference magnetorheological liquid response to the magnetic field, guarantees its rheological characteristic stable play, the three -dimensional shock attenuation layer of inner layer adopts the even arrangement of hexagonal honeycomb -like elastic rubber film and viscoelastic damping block, and is matched with interval distribution's shock attenuation spring and shock attenuation rubber block, can form multistage shock attenuation system, effectively absorbs and buffers mechanical vibration, greatly reduced the influence of outside vibration to sound insulation cotton layer and magnetorheological liquid filling cavity, has improved the reliability of product under complex vibration environment significantly.

The utility model discloses an on-line sampling device which comprises a sampling bottle, a needle valve, a lifting mechanism and a bottle positioning mechanism, the bottle opening of the sampling bottle is provided with a bottle cap with a rubber film, the needle valve comprises a valve body, a needle type adapter and a sampling needle, the valve body is arranged on a conveying pipeline, and the sampling needle is arranged at a sampling opening of the valve body through the needle type adapter; the lifting mechanism is arranged right below the sampling needle and comprises a lifting table and a driving part which is arranged below the lifting table and is used for driving the lifting table to do lifting motion; the bottle positioning mechanism is arranged on the lifting mechanism and comprises a bracket arranged on the lifting table and a profiling cover arranged over the bracket and matched with the upper portion of the sampling bottle, and the profiling cover is movably connected with the bracket through a hasp piece to form a cavity used for fixing the sampling bottle. The bottle positioning mechanism is arranged on the lifting mechanism, so that self-feeding and self-discharging of the sampling bottle are achieved, non-contact automatic sampling is completed, leakage of dangerous chemicals is reduced, damage to operators is reduced, and sampling is convenient, rapid, safe and reliable.

The utility model relates to waste water purification reactor technical field, and disclose a kind of chemical wastewater purification reactor, including aeration assembly, still including two transmission assemblies, several clamping assemblies, aeration assembly includes aeration pipe, microporous rubber membrane, air inlet head, sealing head, microporous rubber membrane sliding sleeve is connected on aeration pipe, air inlet head and sealing head are respectively arranged at the both ends of aeration pipe;The utility model, microporous rubber membrane sleeve is connected on aeration pipe, then air inlet head and sealing head are respectively screwed into the both ends of aeration pipe, then respectively clockwise rotate two rotating rings, drive clamping plate to slide towards microporous rubber membrane and extrude microporous rubber membrane to recess, when all clamping plate slides to mutual contact, microporous rubber membrane can be fastened on aeration pipe, compared with using clamp fixed, without the aid of auxiliary tool and easy to operate, improve the convenience of installation and disassembly microporous rubber membrane.

The application discloses a kind of express waybill printing assembly lines, including frame body, the frame body is provided with multiple groups of material conveying line and is respectively conveyed by its driving device support net, back type hollow rubber membrane layer, express waybill layer and release layer, the material conveying line includes material conveying line one, material conveying line two, material conveying line three, material conveying line four and material conveying line five, the express waybill of the printing assembly line finished product obtained by the application can be conveniently torn and pasted under the action of L type hollow rubber membrane, and is pasted more smoothly and tightly under the action of its support net, the release layer adhered to express waybill layer has certain toughness in use, and is not prone to fracture and sticking phenomenon, further improve the quality and use effect of such express waybill.

The application discloses a one-way backflow-preventing condensate water treatment device for a vehicle air conditioning system and a use method thereof, and relates to the technical field of vehicle air conditioning condensate water treatment. The device is used to solve the problem that, when the existing vehicle air conditioner is cooling, condensate water is generated, flows out from the air conditioner drain pipe, and is naturally discharged along with gravity and drips to the ground. However, if the vehicle is involved in water, the condensate water discharge port may be blocked by silt in the water, and the condensate water may flow back into the cab. The device comprises a first sealing element housing, a second sealing element housing is arranged below the first sealing element housing, and the first sealing element housing and the second sealing element housing are welded into an integrated whole. The device further comprises a rubber diaphragm arranged inside the second sealing element housing, a diaphragm groove is arranged at the middle position of the rubber diaphragm, a diaphragm protrusion is arranged at the middle position of the outer wall of the rubber diaphragm, and a cross block is arranged at the upper end of the diaphragm protrusion.

The present application discloses a diaphragm of a sound-generating device and a sound-generating device. The diaphragm includes at least one modified ethylene-vinyl acetate rubber membrane layer, which is prepared by mixing inorganic hollow microspheres, additives, and ethylene-vinyl acetate polymer to form a mixed rubber and then cross-linking the mixed rubber; the particle size of the inorganic hollow microspheres is 1 μm to 60 μm, and the distribution density of the inorganic hollow microspheres in the modified ethylene-vinyl acetate is 0.15 g / cm 3 ~0.9g / cm 3 The modified ethylene-vinyl acetate rubber membrane layer has a loss factor of ≥0.11 after being baked at 150°C for 168 hours. The diaphragm of the present application is made by cross-linking a modified ethylene-vinyl acetate rubber membrane layer prepared by mixing inorganic hollow microspheres, additives, and ethylene-vinyl acetate polymer to form a rubber mixture. This not only improves the mid-frequency sensitivity of the sound-generating device, but also ensures that the diaphragm material still has excellent damping performance in high-temperature environments.

The application relates to the technical field of water-isolating thawing, and discloses a water-isolating thawing clamp which comprises a first main body, a second main body and a connecting structure, the first main body comprises a first frame body and a first natural rubber film, the first natural rubber film is located on the inner side of the first frame body, and the outer edge of the first natural rubber film is embedded on the first frame body; the second main body comprises a second frame body and a second natural rubber film, the second natural rubber film is located on the inner side of the second frame body, the outer edge of the second natural rubber film is embedded on the second frame body, the second main body is oppositely arranged with the first main body, and the first natural rubber film and the second natural rubber film are used for placing thawed objects; and the connecting structure is used for connecting and compressing the first main body and the second main body. The water-isolating thawing clamp can be attached to and seal thawed objects when being placed in thawing liquid, so that the thawed objects and the thawing liquid are isolated and thawed, the sealing quantity is reduced, and the production cost and the use failure rate are reduced.

The invention provides a composite flexible plate with bulletproof performance and high flexibility and a preparation method thereof, and relates to the technical field of materials. The composite flexible plate with bulletproof performance and high flexibility is prepared by stacking and paving multiple layers of single-layer prepregs and then carrying out hot press molding. Wherein the single-layer prepreg is formed by compounding an aramid fabric and a modified rubber film covering at least one surface of the aramid fabric. The modified rubber film melts, flows and adheres to the adjacent single-layer prepreg in the hot pressing process, so that the composite flexible plate has the bulletproof performance and meanwhile keeps the characteristic of being capable of being bent at will.

The utility model discloses a portable geological drilling water sample collecting device, which comprises an inner support and a rubber membrane, the rubber membrane covers the outer part of the inner support, the inner support comprises a plurality of fixed cross rods and a central shaft, each fixed cross rod is sleeved with an expansion rod in a sliding manner, the outer end of each expansion rod is connected with the rubber membrane, and the central shaft is connected with the rubber membrane. The expansion rod is connected with the control main rod through the hinged supporting rod, and after the control main rod is pulled up and down, contraction or expansion of the rubber film can be achieved through the expansion rod, so that expansion during use can be achieved, the stored sampling water amount can be increased, and the portability during transportation can be improved after contraction; in addition, the stainless steel sheets are arranged in a matched mode, a certain anti-abrasion protection effect can be achieved during contraction, and the service life is prolonged.

The application discloses a kind of bionic underwater suction cup probe robots of paddlefish type, and technical solution points are as follows: bionic paddlefish robot, the tail of bionic paddlefish robot is movably connected with tail wing;When using, it can be slightly raised by electric push rod to the rubber membrane, when the suction cup ring is attached to the surface of animal, it is reset by electric push rod to pull rubber membrane, so that the effect of preliminary adsorption installation is achieved, at this time, it can be rotated by opening drive motor to drive cross bar, so that rubber spike is in vertical state and pierces the surface of animal, cooperate drive motor to shrink rubber membrane, at this time, the space in air cavity is larger, pressure decreases, the pressure difference between inside and outside makes the device closely attached to the surface of animal, the movement of the animal followed, water flow will flow out from drain hole through water inlet, in the process, it will drive impeller to rotate, generate electricity by hydraulic generator to charge battery to increase its endurance, by drainage plate for increasing the stability of water flow discharge, prevent turbulence from causing shaking.

The invention discloses a coal mining dust fall device based on environmental protection engineering, and relates to the technical field of environmental protection dust fall equipment, the coal mining dust fall device comprises a fog gun barrel, and further comprises a movable opening assembly and a spray head assembly; the movable opening assembly comprises a plurality of movable plates connected to an opening of the fog gun barrel through hinges, a rubber diaphragm is fixedly connected between every two adjacent movable plates and the fog gun barrel, a limiting sliding groove is formed in each movable plate, and a sliding block is slidably installed in each limiting sliding groove; dynamic adaptation of water flow can be achieved, specifically, when the angle of the movable plate changes, the arc head rod is extruded to push the abutting ring to move, and the sector plate and the macromolecule polymer film are opened and closed in a self-adaptive mode under the action of the reset spring. When the opening is expanded, the high-molecular polymer film is unfolded to the maximum opening degree, and the water yield per unit time is increased; when the opening is shrunk, the triangular convex ribs are matched with the sinking grooves to limit the opening degree of the high-molecular polymer film, the water amount is reduced, and the atomization particle size is maintained.

The invention discloses a gravel cleaning device for concrete processing, and relates to the technical field of concrete processing, and the gravel cleaning device is technically characterized by comprising a cleaning box and a base fixedly mounted on the inner wall of the cleaning box, guide columns are fixedly mounted at the four corners of the top of the base, and sliding rails are slidably connected to the guide columns; a guide column is arranged on the base, a sliding rail is arranged on the guide column, a telescopic spring arranged on the outer side of the guide column is fixedly installed between the base and the sliding rail, a gravel containing box is connected to the sliding rail in a sliding mode, and a plurality of friction beads are arranged in an inner cavity of the gravel containing box.By arranging the vibration motor, the friction beads and the telescopic spring, gravel and the friction beads are fully collided and rubbed, and impurities can be stripped without a large amount of clear water; the problems of frost crack of equipment in winter in the north, freezing of sand and gravel and shortage of water resources or high water taking and transportation cost in water-deficient areas are solved; and meanwhile, the rubber membrane vibrates to extrude air in the suction box, exhaust of air with silt is promoted, air purification is achieved in cooperation with the air inlet one-way valve, the exhaust one-way valve and the detachable purification box, and flying dust pollution is avoided.

According to the technical scheme, the automatic feeding mechanism is characterized in that the automatic feeding mechanism comprises a base and further comprises a hopper used for storing the rubber diaphragm to be detected; the main conveying belt is used for conveying the rubber diaphragms from the hopper; the scattering impeller and the leveling impeller are located on the upper surface of the main conveying belt and located on a downstream station of the leveling impeller; when the base of the rubber membrane is attached to the main conveying belt, the calibration protruding block is attached to the small boss of the rubber membrane so that more than half of the rubber membrane can be located on the main conveying belt, and the rubber membrane moves downwards along the edge of the main conveying belt. When the rubber diaphragm is inverted, a small boss of the rubber diaphragm is attached to the main conveying belt, a base of the rubber diaphragm faces upwards and is ejected out of the main conveying belt by the calibration protruding block, the conveyed rubber diaphragm is scattered and leveled through blades of the two impellers, the position of the rubber diaphragm is corrected through the calibration protruding block, and therefore the corrected rubber diaphragm can be photographed, compared and detected conveniently.

The present invention relates to the technical field of disaster early warning, and discloses a debris flow disaster monitoring and early warning device, comprising a rain sensor, a baffle and a detection channel, wherein the baffle is installed at a hillside ditch, and the detection channel is installed on the baffle, the rain sensor comprises a stand and a collection bucket installed on the top of the stand, the inner through hole of the stand is connected to the collection bucket, the stand is provided with a solar panel, a rubber membrane and a puncture mechanism are provided in the collection bucket, and a starting mechanism is provided on the stand, after the puncture mechanism punctures the rubber membrane containing a certain amount of rainwater, the impact force of the falling water flow activates the starting mechanism, and enables the detection mechanism inside the detection channel to work, the detection channel comprises a main channel and a secondary channel, a blocking net and a mud and water impact monitoring mechanism are provided in the main channel, and a flow rate monitoring mechanism is provided in the secondary channel. The present invention realizes accurate monitoring and efficient early warning of debris flow disasters through multi-dimensional technological innovation, and provides a reliable basis for disaster early warning.

To provide RTV rubber for wafer plating, a method for preparing the same, and a jig plating method.SOLUTION: The RTV rubber comprises components at concentrations of 832 to 856 g / kg of component A and 144 to 168 g / kg of component B, and after mixing the above components, the mixture is filled into a mold for a wafer plating product structure to prepare a plating jig product of precision RTV rubber for wafer plating by a production manufacturing technique for preparing a silicone pressure film. The present invention adjusts and controls hardness parameters of the RTV rubber and an addition proportion of a modified crosslinking agent to obtain processing conditions having an excellent elastic modulus range, and enhances precision and stability in preparing a RTV rubber film for wafer plating, thereby imparting superior mechanical strength and elasticity, ensuring that a sealing structure in a wafer plating region has an excellent sealing effect, and preventing occurrence of infiltration leakage of a plating solution into regions other than a plating region and diffusion infiltration metal deposition.SELECTED DRAWING: None

The utility model discloses a sample storage device which comprises a cabinet body, a plurality of placing grooves are formed in one side of the outer surface of the cabinet body, and sample placing assemblies are inserted into the placing grooves; a plurality of strip-shaped grooves are formed in the inner tops of the multiple containing grooves correspondingly, and elastic rubber films are fixedly connected to bottom openings of the multiple strip-shaped grooves in a sealed mode correspondingly. And air inflation cavities are formed in the upper portions of the multiple containing grooves correspondingly. According to the utility model, through the arrangement of the placing groove, the sample placing assembly, the strip-shaped groove, the elastic rubber film, the inflation cavity, the air hole, the piston, the push-pull assembly and the walking wheels, the whole body adopts a movable cabinet body design, and a plurality of sample placing assemblies are concentrated in the cabinet body, so that batch transfer is facilitated, one-by-one carrying is not needed, and the sample transfer is more convenient and quicker; and meanwhile, the rock core samples stored in the cabinet body can be fixed, and two adjacent rock core samples are prevented from colliding in the transferring process, so that the original shapes of the rock core samples are preserved.

This invention relates to the field of solar collector mounting bracket technology, specifically a panel solar collector mounting structure, including a base, a panel solar collector, a frame, a glass plate, an elastic transparent film, a pressure frame, a winding motor, an unwinding motor, a rubber membrane, an air inlet pipe, and an air extraction pipe. The base is equipped with a support frame, the bottom surface of the panel solar collector is placed on the base, the frame surrounds the panel solar collector, the glass plate is located above the panel solar collector, the elastic transparent film is placed on the top surface of the frame and contacts the extension, the pressure frame is placed above the elastic transparent film, the winding motor and the unwinding motor are located on the frame, the two ends of the rubber membrane are connected to the winding motor and the unwinding motor, and the water inlet pipe, the air inlet pipe, and the air extraction pipe are located on the frame. By wrapping the elastic transparent film on both sides with a liquid layer and an air layer, the elastic transparent film will produce irregular shaking during water injection, which can separate foreign objects attached to the elastic transparent film without brushing, and can avoid surface scratches that affect the light transmittance of the panel solar collector.

The utility model provides an in-tooth pressure compensation water dropper, which relates to the technical field of drip irrigation equipment and comprises an upper shell, a bottom shell is mounted on one side of the upper shell, a rubber diaphragm is arranged between the upper shell and the bottom shell, a water inlet hole is formed in the surface of the bottom shell in a penetrating manner, an anti-blocking component is arranged on one side of the water inlet hole, and a water outlet hole is formed in the other side of the water inlet hole. A water outlet channel is formed in the inner side of the upper shell, a water collecting groove is formed in one side of the water outlet channel, a circular protruding block is installed in the water collecting groove, a water outlet hole is formed in the surface of the circular protruding block in a penetrating mode, a water outlet groove is formed in one side of the circular protruding block, and the water outlet groove communicates with the water outlet hole. According to the device, silt in water can be effectively filtered, the anti-blocking performance of the device is improved, meanwhile, the energy dissipation effect can be enhanced, and the device is convenient to use.

The invention relates to the technical field of metal polishing, discloses a rotary objective table and a polishing device, and solves the problems that when an existing objective table is used for assembling a metal cover, firm fixation and convenient correction are difficult to consider at the same time, the metal cover is inconvenient to be polished by a polishing wheel in a preset state, and then the polishing precision of the metal cover is influenced. The metal cover in a static state is supported with low friction force through the second backing ring and the third backing ring, so that when the placement direction of the metal cover is inclined and needs to be adjusted, the limitation of friction force on the metal cover is small, and the placement state of the metal cover is convenient to adjust; the balancing weight actively pulls down the pull ring under the action of centrifugal force, the rubber film is promoted to deform downwards, negative pressure is formed in the closed space on the inner side of the lifting cover, and therefore the metal cover is firmly adsorbed and fixed to the upper side of the lifting cover.

The utility model relates to the technical field of charging piles, in particular to a liquid cooling charging pile with a sealing structure, which comprises a charging pile body, and a liquid cooling mechanism is arranged on the back of the charging pile body. By embedding the hollow plate on the charging pile body, heat generated during operation in the charging pile body can be conveniently absorbed, and by arranging the pressure relief bin at the top of the liquid storage tank, according to the principle of thermal expansion and cold contraction, when the volume of the liquid is expanded due to the fact that cooling liquid absorbs the heat, the internal pressure of the liquid cooling mechanism is too high, and the pressure is reduced. The piston plate in the pressure relief bin can be jacked by over-high pressure, so that the internal space of the liquid storage tank can be extended and increased, the pressure in the liquid storage tank can be relieved, and the problem of leakage caused by damage to a cooling liquid circulation pipeline due to over-high pressure can be avoided; deformation generated by expanding the internal space of the liquid storage tank can be adapted through the ductility of the liquid storage tank, so that the sealing performance is improved.

The application relates to the technical field of arc welding equipment, and discloses a special material welding equipment which comprises a welding head, the welding head comprises a tungsten electrode tube, a tungsten electrode pipe is fixedly installed at the bottom of the inner cavity of the tungsten electrode tube, the outer side of the bottom of the tungsten electrode tube is provided with an inner rubber film and an outer rubber film, the outer rubber film is located at the outer side of the inner rubber film, the bottom of the inner rubber film and the outer rubber film is fixedly arranged at the bottom end of the tungsten electrode tube, and the cavity between the inner rubber film and the outer rubber film forms a conical protective gas channel. The inner rubber film and the outer rubber film are arranged at the outer side of the bottom of the tungsten electrode tube, the cavity between the inner rubber film and the outer rubber film forms a conical protective gas channel, the protective gas is sprayed out through the gas outlet of the protective gas channel, a conical gas curtain is formed, the converging point of the conical gas curtain is located at the welding position of the workpiece, an oxygen-free welding microenvironment is formed at the welding position of the workpiece, and the welding position of the workpiece is prevented from being oxidized.

The utility model relates to the technical field of granulator auxiliary devices, and discloses a unit type plastic granulator cutter which comprises a round roller, a blade is fixedly connected to the outer side of the round roller, a cavity is formed in the round roller, a strip-shaped groove is formed in the surface of the outer side of the round roller, a rubber diaphragm is fixedly connected to the interior of the strip-shaped groove, and the rubber diaphragm is fixedly connected to the outer side of the round roller. An air hole is formed in the bottom surface in the strip-shaped groove, a through hole is formed in the surface of the inner wall of the left side of the cavity, a rotating shaft is rotationally connected to the surface of the left side of the round roller through a sealing bearing, and a communicating unit is arranged in the rotating shaft. According to the utility model, through the cooperation of the cavity, the strip-shaped groove, the air hole, the through hole, the sealing bearing, the rotating shaft and the communication unit, the rubber diaphragm can be expanded to accumulate plastic strips and plastic particles clamped in a crack of the blade, so that the material strips or the plastic particles clamped in the blade are prevented from hindering the cutting of other material strips by the cutter; the cutting effect is influenced.