49results about How to "Avoid dent deformation" patented technology

The invention belongs to the technical field of solar cells, and particularly relates to a solar cell panel. The solar cell panel comprises a support, a bottom plate, a mounting frame, a cell panel, abuffer unit and a dust removing unit; the support is fixedly mounted on the ground; the bottom plate is obliquely arranged at the top of the support; the mounting frame with a groove-shaped structureis fixedly connected above the bottom plate, and a rectangular sheet-shaped cell panel is fixedly connected in the mounting frame; the buffer unit is arranged between the mounting frame and the cellpanel, and the buffer unit is used for preventing collision and damage between the cell panel and the mounting frame due to vibration; the dust removing unit is arranged above the cell panel, and thedust removing unit is used for cleaning dust accumulated on the surface of the cell panel; and the mounting frame, the cell panel, the buffer unit and the dust removing unit are matched with each other, so that the collision between the cell panel and the mounting frame due to vibration can be avoided, dust on the surface of the cell panel is cleaned in time, and the power generation efficiency isimproved.

The invention discloses a substrate taking mechanism capable of preventing a glass substrate from deforming. The substrate taking mechanism comprises a square mounting plate, wherein four suction cupassemblies distributed in a rectangle are mounted at the four vertex corners of the lower end of the square mounting plate, the upper ends of the four suction cup assemblies are jointly connected withan air exhaust connecting assembly, the upper ends of two suction cup assemblies located on the same diagonal line of the square mounting plate are jointly provided with a size adjusting assembly, the outer side of each suction cup assembly is connected with a traction assembly, and a mounting connecting piece is fixed to the center of the upper end of the square mounting plate. When the glass substrate is taken out, the four suction cup assemblies can suck the glass substrate from the four vertex corners, after the glass substrate is sucked, the traction assembles are started, supporting vertical pipes are pulled outwards, and the four supporting vertical pipes are pulled outwards at the same time, so that the glass substrate is straightened, buckling deformation of the periphery of theglass substrate can be prevented, and depressed deformation of the center of the glass substrate can be effectively avoided.

The invention discloses an excavator counter weight and a manufacture method thereof. The excavator counter weight comprises a box body and a cover plate, wherein filling openings are formed in the top of the box body; the box body is welded with the cover plate to form a counter weight housing. The excavator counter weight is characterized in that a plurality of concrete blocks are arranged in the counter weight housing; at least one filling through hole is formed in each concrete block; an upper layer of the concrete blocks is connected with a lower layer of the concrete blocks through connecting shafts. The excavator counterweight has the advantages as follows: the concrete blocks in the excavator counter weight are distributed uniformly; the operation stationarity of an excavator is high when the excavator is in operation; when the excavator counter weight is filled with the concrete blocks, the concrete blocks are prevented from impacting the counter weight housing so as not cause deformation of the counter weight housing; local cavities in the counter weight housing are avoided; the phenomenon that during operation, the counter weight housing is depressed or deformed duo to impacts of external forces is avoided; the manufacture method of the excavator counter weight can adopt an industrial assembly line to effectively improve the production efficiency.

The invention discloses an eutrit nourishing beverage, which comprises the following steps: preparing nourishing product, assistance nourishing product fry boiled extract; preparing mother liquid; adding into citric acid, AnSai honey and sodium benzoate water solution; mixing; stewing; cooling with coolant; sterility-loading; spraying liquid nitrogen in surplus space of the loading vessel; sealing; getting the product. This invention possesses hygienic effect of eutrit and nourishing product.

The invention relates to the field of high-voltage electric appliances, particularly to a vacuum arc-extinguishing chamber contact, a vacuum arc-extinguishing chamber and a vacuum circuit breaker. Thevacuum arc-extinguishing chamber contact comprises a conducting rod, a contact seat arranged on the conducting rod and provided with a hollow cavity, and a contact sheet fixed on the end surface of the contact seat, wherein a supporting body located between the bottom of the contact seat and the contact sheet and used for supporting the contact sheet is further arranged in the hollow cavity, andan insulating spacer is arranged on at least one side of the supporting body in the extending direction of the conducting rod. According to the invention, the problem that in the prior art, a vacuum arc-extinguishing chamber contact is prone to ablation is solved.

The invention relates to the field of pipe processing, in particular to a thin-walled pipe bending device. The thin-walled pipe bending device comprises a working table. A gas tank and an L-shaped molding die are arranged on the working table. One side of the gas tank is provided with a hose. The free end of the hose is provided with a fixing cover used for fixing one end of a pipe. An air bag connected with the fixing cover through a spring is arranged in the fixing cover. A channel used for allowing air to pass through is formed in the middle of the air bag. The air bag is of a closed structure. The horizontal part of the molding die is provided with a stretching cover used for fixing the other end of the pipe. An iron sheet is arranged on the upper surface of the stretching cover. The end, far from the pipe, of the horizontal part of the molding die is provided with an electromagnet and a controller. The two sides of the vertical part of the molding die are provided with heating parts used for preheating the bent part of the pipe. According to the thin-walled pipe bending device, the pipe is stretched, air and the electromagnet are combined for stretching, and the air bag is used for conducting internal supporting, so that the pipe is good in bending effect and smooth in surface, and the failure rate of pipe bending is reduced.

The invention provides a machining machine and a machining process for manufacturing a steel pipe structure of a steel pipe truss. The machining machine comprises a workbench, a supporting and limiting device and a bending device. According to the device, the following problems existing in the machining process of manufacturing the steel pipe structure of the steel pipe truss can be solved of a, bending machining can only be carried out for a certain size when traditional steel pipes are bent at present, bending machining cannot be carried out on the steel pipes of various sizes, meanwhile when traditional bending equipment is used for bending the steel pipes, steel pipes with different angles cannot be machined, only one bending angle can be achieved, the function is single, and the effect is limited; and b, when the existing bending equipment is used for bending, the bending part of the steel pipe is sunken and deformed, repairing is often needed, time and labor are wasted, even some steel pipes are directly scrapped, the cost is increased, meanwhile, certain resilience exists after the steel pipe is bent, so that the bending angle of the finally formed steel pipe does not meet the requirement, and the steel pipe needs to be processed again.

The invention provides a real-time in-situ collecting and monitoring device for interstitial water of lake and reservoir bottom mud. The device comprises a cylinder body, wherein the cylinder body is internally provided with a collecting cavity, and the outer side opening of the collecting cavity is communicated with the outside of the cylinder body; a capillary tube bundle which is placed in the collection cavity, wherein an opening in one end of the capillary tube bundle faces the outside of the cylinder body; a liquid collecting bin which is communicated with an opening in the other end of the capillary tube bundle; a liquid extraction pipe which is communicated with the liquid collection bin, wherein a liquid extraction device is arranged on the liquid extraction pipe; and a propelling mechanism which is connected with the capillary tube bundle and drives the capillary tube bundle to move towards the outside of the cylinder body. When the in-situ collecting device is vertically inserted into the sediment until the in-situ collecting device is stable, the capillary tube bundle is pushed by the propelling device to move outwards, so that the capillary tube bundle can be flatly inserted into a sediment layer, the operation of absorbing interstitial water is further carried out, and the range of extracting the interstitial water can be concentrated at a relatively accurate point position.

The invention relates to a chassis dynamometer, which comprises at least one dynamometer unit. The dynamometer unit comprises a bearing support. The bearing support is provided with a driven wheel anda driving wheel driven by a driving mechanism. The driving wheel is connected with a dynamometer. The driving wheel and the driven wheel are wrapped by an endless driving belt in friction rolling fitwith a corresponding wheel of a vehicle. The lower side of the upper endless support belt part is provided with a support body fixed with respect to the bearing support. The endless support belt hasthe following two setting forms: firstly, the endless support belt is a flexible belt, and the support body is a support plate in support cooperation with the upper endless support belt part; and secondly, the endless support belt is a rigid belt, and the endless support belt comprises a plurality of rigid belt sections hinged from the head to tail in sequence, and the support body is the supportplate in support cooperation with the upper endless support belt part or at least two support bars in left-right interval arrangement. The chassis dynamometer solves the problem that it is easier forthe endless driving belt to sink and deform in the prior art.

The invention belongs to the technical field of curtain walls, and particularly relates to a double-layer ventilation curtain wall system. The double-layer ventilation curtain wall system comprises an inner curtain wall plate, an outer curtain wall plate and a connecting plate, wherein the inner curtain wall plate and the outer curtain wall plate are connected through the connecting plate; a partition plate is arranged between the inner curtain wall plate and the outer curtain wall plate; installing strips are arranged in the middles of the side surfaces of the opposite sides of the inner curtain wall plate and the partition plate; installing grooves are formed in the installing strips; fixing rods are fixedly connected to the middles of the installing grooves; adjusting rods are slidably connected to the two ends of each fixing rod; a pair of hinge rods designed in an X shape is hinged between the end parts of the adjusting rods; the insides of the fixing rods and the adjusting rods are of hollow structures and communicate with each other; the inside of the fixing rods is externally connected with a gas source; and the gas source intermittently introduces carbon dioxide gas into the fixing rod and pumps the carbon dioxide gas out of the fixing rods. The air inlet efficiency and the air exhaust efficiency can be improved, and the air flowing between the inner curtain wall plate and the outer curtain wall plate is improved, so that the heat dissipation effect of the curtain wall system is effectively improved.

The invention relates to the field of mechanical equipment, in particular to a clamp and a robot applicable to the clamp. The clamp comprises a mounting bracket, screw rods and at least one set of clamp assemblies, wherein the screw rods are arranged on the mounting bracket, and the clamp assemblies are arranged on the mounting bracket; and each set of the clamp assemblies comprises two clamping plates and a driving assembly, wherein the clamping plates are arranged on the mounting bracket, at least one clamping plate is connected to the screw rods so that the clamping plate can move through rotation of the screw rods, and the clamping plates are in a clamping state or in a loosened state through the driving assembly. According to the clamp, clamping is firm, the clamping efficiency is improved, the product rejection rate is reduced, and the labor intensity of workers is reduced.

The invention belongs to the technical field of lithium ion batteries, particularly relates to a method for testing a button type half battery made of a lithium ion battery electrode material, and belongs to the field of lithium batteries. The technical scheme adopted by the invention is as follows: the method comprises the processes of manufacturing a pole piece and assembling a button type half cell, namely putting a clean base material on an infrared flat plate coating machine, uniformly coating slurry on the base material, drying the pole piece by the coating machine, baking by a vacuum oven to remove moisture, cutting off a blank base material, sequentially rolling the pole piece once at roller gaps of 50mu m, 40mu m and 30mu m of a double-roller machine, and assembling the button type half cell after the pole piece is rolled once at the roller gaps of 50mu m, 40mu m and 30mu m of the double-roller machine. Making the pole piece into a circular pole piece, pasting the circular pole piece on a gasket by using a small amount of conductive adhesive, drying the circular pole piece to serve as a pole piece sheet, placing the negative pole shell of the button-type half cell on a flat operation table in a closed environment, and putting an elastic sheet into the operation table; after six drops of electrolyte are added, a gasket and a pole piece are added, then three drops of electrolyte are added to wet (increase) a pole piece dressing, a diaphragm is attached to the pole piece, a lithium piece is placed and slightly pressed, a positive pole shell is covered, the lithium piece is placed in a sealing machine to be sealed at the pressure of 800 psi, and the button type half-cell sample for material testing is obtained.

The invention provides an agricultural machine belt of a meridian cord fabric structure. The agricultural machine belt comprises a wrapping fabric layer circumferentially wrapping the outer portion of an agricultural machine belt body, top glue, a strength layer, buffer glue, meridian cord fabric layers, compression glue and bonding glue used for bonding the meridian cord fabric layers and the compression glue. The top glue is bonded to the position above the strength layer. The buffer glue is bonded to the position below the strength layer. The compression glue circumferentially wrapped by the meridian cord fabric layers is bonded to the lower portion of the buffer glue. The large top of the compression glue is wrapped by the two meridian cord fabric layers. Meridian cord lines in the meridian cord fabric layers are arranged in parallel, and an included angle between each meridian cord line and the center line of the agricultural machine belt body is 90 degrees. By the adoption of the agricultural machine belt of the meridian cord fabric structure, the transverse rigidity of the agricultural machine belt is improved, the load capacity of the agricultural machine belt is improved, and a transmission belt is prevented from deforming in the use process; a compression glue reverse-wrapping technology is adopted by meridian cord fabric, a cord fabric press seam is in lap joint with the large face of the compression glue, and the transverse rigidity and the bearing and pressure measuring capacity of the belt body can be better improved through the two cord fabric layers on the compression glue.

The invention relates to an intelligent tailored blank laser welding system for metal parts. The intelligent tailored blank laser welding system is characterized in that the lower end of a base is connected with the existing ground, a fixing device is mounted at the upper end of the base, and a welding device is arranged above the fixing device. Through cooperation of a first motor, a first threaded rod and a supporting rod, the supporting rod drives arc-shaped blocks to do linear opposite movement, so that the function that the arc-shaped blocks fix main bodies of the automobile exhaust pipe metal parts can be achieved, and the situation that the tailor-welding effect is poor due to the fact that the main bodies of the metal parts shake and deviate in the tailor-welding process is avoided. The two ends of the metal parts can be fixed at the same time by arranging the two sets of arc-shaped blocks, so that the fixing effect is better.

The invention relates to a chassis dynamometer and a dynamometry unit thereof. The chassis dynamometer comprises a carrying support, wherein a driven wheel and a driving wheel driven by a driving mechanism are arranged on the carrying support; the driving wheel is connected with the dynamometer; a circulating transmission belt which is in corresponding friction and rolling fit with a vehicle is wound on the driving wheel and the driven wheel; a supporting body which is fixed relative to the carrying support is arranged on the lower side of a circulating supporting belt portion on the upper side; the circulating supporting belt has the two arrangement modes, in the first mode, the circulating supporting belt is a flexible belt, a supporting body is a supporting flat plate which is in supporting fit with the circulating supporting belt portion on the upper side, in the second mode, the circulating supporting belt is a rigid belt and comprises a plurality of rigid belt sections which areconnected end to end successively in a hinged manner, and the supporting body is a supporting flat plate matched with the circulating supporting belt on the upper side or at least two supporting strips which are arranged at intervals in the left-right direction. The invention provides the chassis dynamometer capable of simulating a real vehicle running environment and the dynamometry unit used inthe chassis dynamometer.

The invention discloses a screw cap and a washing machine, and belongs to the technical field of screw caps. The screw cap comprises a body part, wherein a protrusion is arranged on the outer side ofthe body part; a supporting column is arranged at the position, corresponding to the protrusion, of the inner side of the body part; a plurality of buckles are arranged on the inner side of the body part at intervals; and a reinforcing rib is arranged between at least two buckles. The washing machine comprises an upper cover, a disc base and the screw caps, wherein screw holes are formed in the disc base; the buckles are clamped with the screw holes; the body part of one screw cap is positioned at an opening of each screw hole; and the upper cover can abut against the protrusions. By arrangingthe supporting column, when the protrusion is pressed, the supporting column can achieve the supporting effect, and the protrusion is prevented from being sunken and deformed; by arranging the buckles on the inner side of the body part at intervals, the screw cap is firmer during installation and fixation, and loosening is prevented; and by arranging the reinforcing rib, the strength is improved,and the screw cap is prevented from being deformed.

The invention relates to a low-temperature co-fired ceramic (LTCC) stacking protective element and a manufacturing method thereof. A ceramic substrate of the element is provided with a stamping groove, and the stamping groove is filled with LTCC porous ceramics slurry or pore-forming agent slurry. A melt layer is stacked on the ceramic substrate which is filled with the LTCC porous ceramics slurry or the pore-forming agent slurry, making an electrode pattern locate right above the stamping groove which is filled with the LTCC porous ceramics slurry or the pore-forming agent slurry. Other ceramic substrate is stacked on the ceramic substrate which has the melt layer. Stamping groove portions of the two ceramic substrates are in the same vertical planes, so that the melt layer is disposed between the stamping groove portions which are filled with the LTCC porous ceramics slurry or the pore-forming agent slurry. Using a porous filling material with an extremely low thermal coefficient and a large specific surface area can disperse an impact effect on a product, and the impact effect is caused by high-pressure heat flow generated when a fuse link moves.

The invention discloses a mold for bending and forming a thick glass tube and a using method thereof, and belongs to the technical field of glass tube processing. Through the arrangement of an anti-deformation heat-assisting piece, when a glass tube is bent, the bent part of the glass tube can be directionally and uniformly heated through high-temperature heat carrier particles, so that the glass tube can be uniformly heated. When the glass tube is bent, the glass tube can be prevented from being sunken and deformed inwards through the high-temperature heat carrier particles. Through the arrangement of hard and soft rod limiting pieces, after the glass tube is heated and softened, heat conduction anti-extrusion rods can be pulled to slide into a heat preservation adjusting cylinder, so that a flowing space can be provided for the high-temperature heat carrier particles, the heat carrier particles are prevented from extruding the glass tube outwards to cause deformation of the glass tube when the glass tube is bent, and the cooling and shaping efficiency after the glass tube is bent can be improved. Residual heat in the high-temperature heat carrier can be recycled, and the energy-saving and environment-protection performance is improved.

The invention relates to the technical field of automotive bodies, and discloses a through type side body outer plate supporting plate structure. The through type side body outer plate supporting plate structure comprises a side body outer plate supporting plate, a side body outer plate fixing plate is movably installed on the left side of the side body outer plate supporting plate, a door lock pin nut plate fixing plate is movably installed in the side body outer plate supporting plate, a door lock pin nut plate is movably installed in the door lock pin nut plate fixing plate, a side body outer plate supporting plate base plate is fixedly installed on the bottom part of the side body outer plate supporting plate, a door lock pin nut plate handle is fixedly installed on the right side of the side body outer plate supporting plate base plate, a rear door lock buckle reinforcing plate is fixedly installed on the right side of the side body outer plate supporting plate base plate and located on the bottom part of the door lock pin nut plate handle, and a rear door lock buckle reinforcing plate fixing hole is formed in the rear door lock buckle reinforcing plate. According to the through type side body outer plate supporting plate structure, lightweight of a car body is achieved, cost control is low, and sunken deformation is avoided.

The invention provides an anti-collision car wheel comprising a cylindrical rim; ring-shaped flanges extending outwards are installed at openings of two ends of the rim; one opening at one end of therim is provided with multiple plate-like spokes radially extend outward from the center of the rim; one end, close to the center, on the spoke is provided with a mounting hole; the spokes are connected with the hub through wheel bolts; multiple cylindrical spiral springs are installed on an inner side end surface of the spokes; an end of each spring is fixedly provided with a disk-like support sheet; the support sheet is in touch with a support disk on the hub. The car wheel of the invention can prevent depressed deformation of spokes due to collision and enhance the anti-collision capabilityof wheels.

The invention relates to the field of living goods. In the prior art, there is no novel bed which has advantages of convenient transportation, small land occupation, high stability and is capable of keeping the bed body sanitary and preventing other people from occupying the bed body unreasonably. In order to solve the above problem, the invention provides a cabinet bed, which comprises a cabinetbody, a folding bed and a locking piece. The folding bed comprises a plurality of folding mattresses which are connected with one another, a front end plate and a bracket part; the tail end of the folding mattress is hinged with the inner side of a back plate in the cabinet; the front end of the folding mattress is hinged with the inner side of the front end plate; the folding mattress connected with the front end plate is a bedside cushion; a pillow part protruding upwards is arranged on the upper end face of the bedside cushion; the folding mattress can be partially or completely stored in the cabinet body; the front end plate forms a front cabinet door of the cabinet body after the folding mattress is completely stored in the cabinet body; the locking piece is arranged on the outer sideof the front end plate; and a locking groove or a lock catch corresponding to the locking piece is arranged on the cabinet body after the front end plate forms the front cabinet door.

The invention discloses a suction diffusion type decontamination device, which belongs to the field of HVAC equipment and is designed to solve the problems that the filter screen cylinder of the existing decontamination device is easily deformed and falls off after being washed by fluid for a long time. A suction diffuser type decontamination device, including a cylinder body, water inlet pipes and outlet pipes respectively connected to the cylinder body, and a filter screen cylinder arranged in the cylinder body, and at least two sets of filters for preventing the filter screen cylinder from being sunken and deformed. A support assembly, wherein the support assembly includes a first support tube sleeved inside the filter screen cylinder, a second support tube sleeved outside the filter screen cylinder, and a support connected to the second support tube. The filter screen cylinder of the suction diffusion type decontamination device provided by the invention is not easily deformed after long-term scouring by fluid, has a long service life, is convenient to disassemble, and has low maintenance cost.

The invention discloses a mold for bending and forming a thick glass tube and a method for using the same, which belongs to the technical field of glass tube processing. The invention adopts the arrangement of anti-deformation and heating aids so that when the glass tube is bent, the high temperature can be passed The heat carrier particles heat the bend of the glass tube in a directional and uniform manner, so that the glass tube can be heated evenly. The setting of hard and soft limiting rods makes it possible to pull the heat-conducting anti-extrusion rod to slide into the heat preservation adjustment cylinder after the glass tube is heated and softened, which not only provides a flow space for high-temperature heat carrier particles, but also prevents the glass tube from being bent. The heat carrier particles extrude the glass tube outward, causing the glass tube to deform, and can improve the efficiency of cooling and shaping the glass tube after bending, and can also recover and reuse the remaining heat in the high-temperature heat carrier, improving energy saving and environmental protection performance.

The invention relates to a contact for a vacuum arc-extinguishing chamber, a vacuum arc-extinguishing chamber and a vacuum circuit breaker. The contact comprises a conductive rod, a contact sheet anda supporting body; the conductive rod is provided with a contact seat with a hollow cavity; the contact sheet is fixed on the end surface of the contact seat; the supporting body is arranged between the contact seat and the contact sheet and is used for supporting the contact sheet; the supporting body comprises a supporting body main body; in the extending direction of the conductive rod, at least one of two end surfaces of the supporting body main body is provided with an insulating layer. With the insulating layer adopted, current flowing through the conductive rod can be prevented from flowing through the supporting body. In the prior art, part of current flows through a supporting body, while, annular current on the contact of the invention is increased, and a magnetic field generatedby the annular current on the contact is improved; and therefore, the arc extinguishing capability of the vacuum arc extinguishing chamber is enhanced, and the problem that the contact of the vacuumarc extinguishing chamber is easy to ablate in the prior art is solved.

The rapidly-arranged marine ecological protective net comprises a floating block, a first groove is machined in the top of the right side of the floating block, a mounting structure is connected to the inner wall of the first groove, and the mounting structure comprises a round rod, a square plate, a torsion spring, a square block and a handle. The front side and the rear side of the round rod are connected with the inner wall of the first groove in a front-back rotating mode, and the outer wall of the round rod is connected with the inner wall of the square plate in a welded mode. The marine ecological protective net capable of being rapidly arranged is easy to install and arrange, the use difficulty is reduced, the practicability is improved, the bottoms of the bent plates are connected with the seabed in an inserted mode, automatic adjustment can be achieved according to installation requirements, the working efficiency is improved, use is convenient, the vertical rods and the vertical rods support the two net plates, sunken deformation is prevented, and the service life of the protective net is prolonged; the transverse plates can prevent organisms from jumping over the protective net, the protective performance of the protective net is improved, the use requirement is met, and popularization and use are convenient.

The invention provides an anti-collision car wheel comprising a cylindrical rim; ring-shaped flanges extending outwards are installed at openings of two ends of the rim; one opening at one end of therim is provided with multiple plate-like spokes radially extend outward from the center of the rim; one end, close to the center, on the spoke is provided with a mounting hole; the spokes are connected with the hub through wheel bolts; multiple cylindrical spiral springs are installed on an inner side end surface of the spokes; an end of each spring is fixedly provided with a disk-like support sheet; the support sheet is in touch with a support disk on the hub. The car wheel of the invention can prevent depressed deformation of spokes due to collision and enhance the anti-collision capabilityof wheels.

The invention belongs to the field of machinery, and particularly relates to a power-driven return material clearing scraper conveying device. According to the conveying device, material clearing gearshafts are connected and fixed to material clearing transmission gears and hanging material clearing chain driving gears in a penetrating manner and are supported by machine frames or supported by lower material clearing hoppers, the material clearing transmission gears drive the hanging material clearing chain driving gears to rotate, return material clearing scrapers are arranged between two return material clearing scraper chains, and the return material clearing scraper chains are buckled on the hanging material clearing chain driving gears and material clearing reversing gear parts in asurrounding manner to form return material clearing scraper conveyors. The conveying device has the advantages that the material clearing transmission gears drive the hanging material clearing chain driving gears to rotate, so that the power for clearing return materials is saved, the active power on buckle tooth multi-dimensional integral leakage-proof side positioning bands is used as the powerfor clearing return coal, and therefore the power for clearing the return materials is increased, it is guaranteed that the power of the power-driven return material clearing scraper conveying deviceis reliable, the structure is simple, and the return material clearing effect is good.

The invention discloses formation water drainage equipment for oil exploitation, and relates to the technical field of oil exploitation auxiliary devices, the formation water drainage equipment comprises a fixed base and a mine ground, a drainage groove is formed in the top of the mine ground, the fixed base is movably connected to the bottom of an inner cavity of the drainage groove, and a stable insertion rod is fixedly welded to the bottom of the fixed base; and the stable insertion rod is movably connected to the interior of the mine ground. A rotating control motor is controlled to work to drive a hollow frame to rotate, then a filter cylinder is promoted to rotate around the circle center of the top of the hollow frame, and at the moment, under the action of centrifugal force, impurities attached to the inner wall of a primary filter screen cover are promoted to be thrown away; meanwhile, the movable sealing ring can stretch the elastic connecting rope in the centrifugal process, so that a gap is formed between the movable sealing ring and the filter cartridge, impurities attached to the outer wall of the fine filter screen cover are thrown out through the gap, and the function of cleaning the fine filter screen cover and the primary filter screen cover is achieved.

The invention relates to a vacuum interrupter contact, a vacuum interrupter and a vacuum circuit breaker. The vacuum interrupter contact includes: a conductive rod on which a contact seat with a hollow cavity is arranged; a contact piece fixed on The end surface of the contact seat; the support body is arranged between the bottom of the contact seat and the contact sheet, and is used to support the contact sheet; the support body includes a support body body, and in the extending direction of the conductive rod, the support body At least one of the two ends of the main body is provided with an insulating layer, which can prevent the current flowing through the conductive rod from flowing through the support body, and compared with the current part of the current flowing through the support body in the prior art, it increases the contact strength. The circular current on the head improves the magnetic field generated by the circular current on the contacts, thereby enhancing the arc extinguishing capability of the vacuum interrupter and solving the problem that the contacts of the vacuum interrupter are easily ablated in the prior art.