2153results about How to "Easy to replace and maintain" patented technology

The utility model discloses a parameter correction system and method of LED matrix screen, comprising a main controller and a plurality of LED driving units, which is characterized in that the LED driving unit comprises a storage circuit, a storage control circuit and a LED driving circuit, wherein the storage circuit storages the point correction parameter of the LED matrix of the current-level LED driving unit. When the parameter correction system of the LED matrix screen reads the correction parameters, the main controller controls the LED driving unit and a communication channel is established between the main controller and the LED driving unit, the point correction parameters stored in the storage circuit of the LED driving unit are read to the main controller by the main controller and the storage control circuit of respective-level LED driving unit through the communication channel, the main controller finishes the operation and contrast of the point correction parameters, and transfers the actual display values to the LED driving circuit of the LED driving unit.

The invention discloses a sieving and crushing integrated machine. The sieving and crushing integrated machine comprises a machine housing, a sieving and distributing machine (1) arranged at an upper part of the machine housing, and a sieving and crushing machine (35) arranged at a lower part of the machine housing, wherein the sieving and distributing machine (1) comprises a charge hole (2), an arc-shaped distributing plate (6), an iron remover (11), a transmission device, a flange type sieve shaft (4) and a filter sieve shaft (5); the sieving and crushing machine (35) comprises a main rotor, an arc-shaped counterattack sieve roller set, a particle size adjusting device and a transmission device; and a charge hole (36) of the sieving and crushing machine is positioned below a discharge hole (9) of the sieving and distributing machine. The sieving and crushing integrated machine has the following creative effects: the original two-stage crushing and one-stage sieving mode is changed to be a one-stage sieving and one-stage crushing mode, so that a system structure is simplified; problems of material adhesion and blockage, high iron content, low sieving and crushing efficiency, high power consumption, non-uniform ring hammer wear, unadjustable particle size, high difficulty in overhauling and replacement of spare parts, inconvenience in operation and the like are solved; and the sieving and crushing integrated machine is a major innovation of sieving and crushing equipment technology.

The invention belongs to the technical field of agriculture product processing, and particularly relates to a flat plate type vacuum pulsation drying machine. The flat plate type vacuum pulsation drying machine comprises a machine body, a control unit, a material drying unit and a pulsation vacuum unit, wherein the material drying unit is provided with multiple layers of material shelves. According to the flat plate type vacuum pulsation drying machine disclosed by the invention, a heating part adopts special electric heating plates, so that the processing is simple and convenient, the cost is low, the heating temperature is uniform, and the manufacturing cost, the using cost and the maintaining cost of the drying machine are greatly reduced; through a hierarchical control mode, corresponding heating plates can be opened according to actual processing amount, so that the energy consumption is reduced; meanwhile, soft material trays are adopted, so that the contact conditions between the material trays and the heating plates are remarkably improved, the quality of dried products can be effectively ensured, and the problem that the soft material trays are inconvenient to move is overcome by using a dedicated material tray shovel to assemble and disassemble the material trays; in addition, the flat plate type vacuum pulsation drying machine belongs to static drying, the breakage of materials cannot be caused; the processing and loading capacity of equipment can be effectively increased by virtue of a multi-layer structure.

The invention discloses a core machine which comprises a frame, a worktable, a worktable lifting mechanism, a lower core ejection mechanism, a lower core box moving mechanism, an upper core box lifting mechanism, a sand ejection unit and a movable air blowing cover mechanism. The core machine is characterized in that the lower core ejection mechanism is positioned in front of the worktable and is fixedly connected with the frame; the worktable lifting mechanism is of a four-guide rod structure, and lifting hydraulic cylinders are respectively arranged on two sides of the worktable; the lower core box moving mechanism comprises a driving hydraulic cylinder arranged on the worktable, a cored trolley and guide rails; the guide rails comprise a first guide rail positioned on the worktable and a second guide rail positioned on the lower core ejection mechanism; the first guide rail and the second guide rail are aligned with each other. The core machine is convenient in daily maintenance, the lower core ejection mechanism is fixed on the front side of the equipment and is not lifted along with the worktable, and the core box lifting and core taking are convenient.

The invention discloses a pedal durability tester and belongs to the field of vehicle accessories. The pedal durability tester comprises a biaxial double-action type cylinder, two pedals, a rod end joint bearing, a pedal support, an experimental tool and a pneumatic system; two panels are fixed on the experimental tool via the pedal support; the biaxial double-action type cylinder is fixed on the experimental tool; two rod ends of the biaxial double-action type cylinder are connected with the rod end joint bearing; and the pneumatic system is connected to the tester via the biaxial double-action type cylinder. The pedal durability tester has the beneficial effects of capability of carrying out the durability test of the two pedals, convenience for maintenance and change and easiness for the acquisition of a gas source and low manufacturing and maintaining costs; and the reciprocating movement velocity of the cylinder can be continuously adjusted from a low speed to a high speed by adjusting the air inflow of the cylinder so as to meet the requirements on the test speed of the pedal under different conditions.

The invention discloses a poly-lens profound hypothermia infrared detector pipe casing structure packaged in a Dewar. The poly-lens profound hypothermia infrared detector pipe casing structure is applicable to the packaging technology of a profound hypothermia pipe casing arranged in an infrared focal plane detector Dewar and provided with a plurality of cold optical elements. The poly-lens profound hypothermia infrared detector pipe casing structure comprises a detector chip, an electrode lead wire circuit substrate, a plurality of lenses, an optical filter, a supporting pipe casing, a press ring type cold shield, a chip, a lead wire silicon-aluminum wire and the like. The poly-lens profound hypothermia infrared detector pipe casing structure achieves poly-lens profound hypothermia pipe casing high-accuracy packaging through special measures and structural modes such as laser positioning drilling, the nested press ring type cold shield, the special alloy integrated supporting pipe casing and lateral surface fine tuning aligning, can effectively meet hypothermia infrared optical accuracy requirements, reduce the background in a chip view field, stray light and heat radiation of the whole Dewar and effectively remove low temperature deformation stress of the ceramic sintered pipe casing on the detector chip, and is applicable to other radiation cooling, thermoelectric refrigerating and the like.

The invention discloses a pressing module for testing drawing force of a keycap and a test machine for the drawing force of the keycap. The pressing module comprises a pressing board, a pressing board cylinder, and a pressing board driver, which are connected in sequence from bottom to top, wherein the pressing board is used for pressing a keyboard; the pressing board cylinder is used for driving the pressing board to move up and down in a vertical direction; and the pressing board driver is used for driving the pressing board cylinder and the pressing board together to move in a Y-axial direction in a keyboard plane. The test machine for the drawing force of the keycap comprises: a keyboard placing device for placing and inputting a to-be-measured keyboard; a pressing module for testing drawing force of the keycap for pressing the keyboard, a drawing force measuring head module for measuring the drawing force of the pressed keycap in the keyboard; a telescoping module for hanging the measuring head module and performing interval adjustment; a substrate for fixing the telescoping module; and a driving device for driving the substrate to move along the X-axial, Y-axial, and Z-axial directions. The test machine is high in detection rate, low in misjudgement rate, good in versatility, and low in detection cost, and doesn't generate damage to a good keycap.

The invention relates to a plate type ultrafiltration membrane locking assembly which comprises a first membrane, a second membrane, a membrane element formed by a screen mesh clamped between the first membrane and the second membrane and lock plates with annular bodies, wherein the membrane element is sleeved to the peripheral surface of each fan-shaped boss on the front face of a lock plate through a punched hole of the membrane element, and another lock plate with the same structure is abut jointed with the lock plate sleeved with the membrane element by the back face; meanwhile, an insert block and a convex post of one lock plate are respectively inserted into an insert block catching groove and a convex post insert hole of another lock plate to be mutually locked; and the lock plates are sequentially connected to form the plate type ultrafiltration membrane locking assembly. The plate type ultrafiltration membrane locking assembly is formed by overlapping two or more lock plates with the same structure, and the lock plates can be arbitrarily and continuously superposed; the lock plates are convenient and quick to assemble and disassemble, the membrane element is convenient to replace and maintain; the interlocking performance is good, and the sealing performance is reliable and stable; and the surface of the membrane is smooth and easy to clean, thus the filtering efficiency and the service life of plate type ultrafilters are effectively improved.

The invention provides a waterproof construction method characterized by a heat pipeline sleeved in a steel sleeve pre-buried in an external wall and a waterproof system structure. The waterproof construction method includes steps as follows: the steel sleeve is pre-buried in the wall; a heat insulation pipeline is sleeved in the steel sleeve and fixed; the clearance between the steel sleeve and the heat insulation pipeline is filled with a functional material; the functional material at least includes a set of water swellable rubber strip layers; baffles are arranged on the outer sides at both ends of the steel sleeve; the outer sides of the baffles are waterproof, and raiser blocks used for supporting are arranged and tightly clung to the baffles; a waterproof coiled material is laid inan intersection area of the external wall body and the heat insulation pipeline, and wrinkles are formed at the corner of the waterproof coiled material, so that the waterproof coiled material and the outer wall of a direct-buried heat insulation pipeline can be combined and wound tightly; the waterproof coiled material is externally provided with a protection layer; a local reinforcement protection facility is arranged on the outer side at the wrinkle part at the corner of the waterproof coiled material; and the backfilling is performed. The structure is an integral system structure established upon the method. The construction method is simple and short in period, and lowers the investment; the daily maintenance is convenient, the waterproof effect is excellent, the service life is long, and the operation management cost is low; and further, the requirement for the operation of a heat pipeline network can be satisfied.

The invention relates to an unmanned aerial vehicle monitoring system and a monitoring method thereof. The unmanned aerial vehicle monitoring method comprises the following steps: step 1, acquiring animage in a scanning area; step 2, forming a three-dimensional vision to determine whether a suspicious object exists in the image or not through a first camera and a second camera; step 3, if yes, calculating the standard position of the suspicious target, and tracking and shooting the suspicious target. A plurality of servo holders are arranged in the area to be detected, the first camera and the second camera are arranged on the two side end faces of each servo holder, after the unmanned aerial vehicle is found, the unmanned aerial vehicle is tracked and monitored through binocular vision according to the position information, the finding, identifying and disposing of the low-altitude low-speed small targets can be realized, the unmanned aerial vehicle is detected through the two cameras, the concept that the unmanned aerial vehicle is detected by radar is changed, and the detection cost of the unmanned aerial vehicle is reduced.

The invention relates to a plate-and-frame filter press which comprises a support, two cross beams and a hydraulic compressing device arranged on the support, wherein a push plate, a stop plate and a plate-and-frame group are arranged between the two cross beams, one side of each plate frame is in a plane structure, another side of each plate frame is a frame convex, each plate frame has a concave structure inside, one side of each plate frame plane is provided with a plate frame extruding balance beam, a spring and a small hydraulic cylinder are arranged between each plate frame and each plate frame extruding balance beam, a hydraulic oil opening is arranged on a small hydraulic cylinder body, the hydraulic oil opening is connected with a hydraulic oil support pipe, and a hydraulic oil branch pipe on each plate frame is communicated with a hydraulic oil main pipe on each plate frame. The position except a material inlet on the surface at one side of each plate frame is provided with an automatic filter cloth cleaning device. The plate-and-frame filter press is simple in structure, each plate frame can be synchronously pushed in the process of filter-press, the plate frames can be compacted with one another, the material can not be lost, the plate-and-frame filter press is high in filter-press efficiency, the workload of the hydraulic compressing device can be effectively reduced, each plate frame can not deform or be damaged, and the plate-and-frame filter press has a function for cleaning a filter cloth on line.

The invention discloses an adhesive pre-applying and label pre-cutting dry type labeling machine, and relates to the technical field of machinery. An adhesive pre-applying and label pre-cutting dry type labeling technique is adopted, and one side of a platform is fixed together with a chain channel; one side of the chain channel is fixed together with a screw; the platform is fixed together with a guide plate, a star wheel shaft A, a rotation disc shaft, a spraying device, a rotation drum shaft, a label absorption rotation disc shaft, a label storage supporting disc and a star wheel shaft B; the inner wall of the label storage supporting disc is connected with a label pressing plate in a sliding and moving mode; the star wheel shaft A and a star wheel A, the rotation disc shaft and a rotation disc, the rotation drum shaft and a rotation drum, the label absorption rotation disc shaft and a label absorption rotation disc, and the star wheel shaft B and a star wheel B are rotationally and movably connected via bearings; bottle supports are uniformly distributed on the rotation disc; label palms are fixed on the label absorption rotation disc in a uniformly distributing mode; the rear end of the label pressing plate is provided with a pneumatic device; a label paper carrier material is selected from one of paper, plastics and aluminum foils; polyving akohol adhesive is pre-applied to a label paper carrier, and the polyving akohol adhesive on a pre-applied label is in contact with water mist sprayed by the spraying device so as to generate he viscosity for preparing for labeling. The adhesive pre-applying and label pre-cutting dry type labeling machine is used for labeling for bottle type objects, is novel in concept, reasonable in structure, easy to manufacture, and low in cost.

The invention discloses a plugging photoelectric composite connector which comprises a plug and a socket; a pre-reserved photoelectric composite cable which is protruded outside is arranged in the left end of the plug; a plug center hole and a plurality of first openings are arranged in the right end of the plug; an optical inner insert core is arranged in the first opening; a first electric insert core is arranged in the plug center hole; a plurality of electrically connected jacks are arranged in the first electric insert core; a contact is arranged in each electrically connected jack; the optical fiber inner insert core and the contact are connected and coupled with the right end of the pre-reserved photoelectric composite cable; a socket center hole and a plurality of second openings are arranged on the left end of the socket; optical fiber outer insert cores are arranged in the second openings; the left end of each optical fiber outer insert core is inserted leftwards into the first opening which corresponds to the optical fiber outer insert core and is contacted with the optical fiber inner insert core in the first opening; a second electric insert core is arranged in the socket center hole; a plurality of contact pins are arranged on the second electric insert core; and the left end of each contact pin is inserted leftwards into the electrically connected jack which corresponds to the contact pin and is contacted with the contact in the electrically connected jack.

The invention discloses an intelligent comprehensive fire protection system for a public transport vehicle. The intelligent comprehensive fire protection system for the public transport vehicle comprises a public transport vehicle alarm linkage controller, an automatic fire detector, a manual startup switch, an automatic window breaker, a door opening controller, an automatic fire extinguishing device, a remote communication device and an acousto-optic alarm device; the intelligent comprehensive fire protection system is mounted inside the public transport vehicle and is in charge of monitoring a fire safety situation in the public transport vehicle; when the intelligent comprehensive fire protection system automatically detects or manually finds fire in the vehicle, the intelligent comprehensive fire protection system can automatically or manually start the automatic fire extinguishing device, the automatic window breaker, the door opening controller, the acousto-optic alarm device and the remote communication device which are mounted inside the vehicle through the public transport vehicle alarm linkage controller, so that the automatic fire extinguishing device can quickly extinguish the fire after the fire happens in the public transport vehicle, and the fact that doors and emergency escape window of the vehicle are unobstructed and can help people evacuation is ensured; the intelligent comprehensive fire protection system can send a distress signal to a command center through the remote communication device, so that the vehicle can be quickly and timely rescued.

The invention discloses an arrangement-type floating running water power generation device. The arrangement-type floating running water power generation device comprises a floating frame and water wheel sets, transmission assemblies and a power generation assembly which are installed on the floating frame; the water wheel sets are connected with the transmission assemblies through transmission parts installed on water wheel shafts, and the transmission assemblies are connected with the power generation assembly; the water wheel sets are formed by installing multiple water wheels on the floating frame in the counter-flow direction in parallel at intervals; each water wheel at least comprises one water wheel shaft and impeller blades installed on the water wheel shaft. According to the arrangement-type floating running water power generation device, due to the resultant output of the multiple sets of the water wheels, the outputting efficiency and the outputting capacity are guaranteed; the water wheels which are arranged at intervals are beneficial for water flow driving; due to the fact that the multi-buoy design is adopted, the replacement and the maintenance are convenient; landing support legs are used for preventing the device from falling into water bottom sludge when the water level is low, a windshield effectively protects the normal work of the water wheels, the equipment operation is safer, the usage cannot influence the ecological environment, and the occupied space is small; power is generated by utilizing directional natural water flow, the investment is low, the gain is quick, and the economic benefit and social benefit are significant.

The invention discloses a cold-fixed PDC (polycrystalline diamond compact) bit. PDCs with slots are in clearance fit with and fixed in tooth post holes by check rings or stop pins to form cutting teeth, so that the heat influence on the PDCs by the braze welding is avoided, and simple maintenance and replacement of onsite PDCs are realized; when rock is broken in a well, the counter force of the rock drives circumferential conversion working surfaces of the PDCs in the composite tooth posts to rotate, as a result, the defect of abrasion of fixed working surfaces of the PDC bit is overcome, cutting edges are kept sharp during the whole cutting processing, the application stratum scope of the PDC bit is also widened, at the same time, the heat damage on the PDCs during the manufacture process of the bit can be avoided, and the abrasion resistance and the thermal stability of the product are improved. The abrasion resistance of the cutting edges is 13.5 times of that of the standard cutting edge, the whole service life of the bit can be prolonged for 3 to 5 times, and the demand of continuous development in the drilling field is satisfied.

The invention discloses a system and a method for improving biochemistry and deeply treating sewage by utilizing powdered activated carbon. The system comprises pretreatment equipment, a biochemical tank, a secondary sedimentation tank, a high-density sedimentation tank and a submerged ultra-filtration membrane separation subsystem; the sewage enters the biochemical tank after being treated by the pretreatment equipment and is then conveyed into the secondary sedimentation tank for separation, and an effluent enters the high-density sedimentation tank for sedimentation; one part of the sludge in the high-density sedimentation tank flows back to the high-density sedimentation tank, and the other part is discharged into a sludge concentration tank; the effluent in the high-density sedimentation tank is inputted into the submerged ultra-filtration membrane separation subsystem and is mixed with and separated from the activated carbon in the submerged ultra-filtration membrane separation subsystem; carbon slurry in the submerged ultra-filtration membrane separation subsystem circularly flows back, one part flows back into the biochemical tank, and the other part flows back into the submerged ultra-filtration membrane separation subsystem; part of effluent in the submerged ultra-filtration membrane separation subsystem meets the standard to be discharged or recycled, and the other part is conveyed into a clean water tank for backwashing of the submerged ultra-filtration membrane separation subsystem.