46results about How to "Ease of internal maintenance" patented technology

The invention belongs to the field of network maintenance equipment, and particularly relates to a switch reducing dust entrance. The switch is characterized in that a casing is provided with a radiating port, and a rubber ring is inserted into the radiating port; a mesh is fixed to the middle of the rubber ring; an air quantity adjusting plate is fixed to a connecting rod, and the air quantity adjusting plate is disposed at one side of the radiating port; a knob is arranged above the outside of the casing; the upper end of the connecting rod passes through the casing to be connected with the knob, and the lower end of the connecting rod is connected with a connecting rod rotating shaft; a PCB is mounted in the middle of the casing; a first radiating fin is mounted at the lower side of the PCB, and a first heat conductive paste layer is applied between the first radiating fin and the PCB; and a second radiating fin is mounted outside the casing, and a second heat conductive paste layer is applied between the second radiating fin and the casing. The invention provides a switch reducing dust entrance.

The invention discloses a downhole cooling air-cooling dehumidifier, and relates to a heat exchange device for a fixed tubular path assembly of two heat exchange media, in particular to heat exchange equipment which arranges one path in the other path. A heat exchanger comprises a case, heat exchange tube units, a header tube, an inlet tube and an outlet tube. The heat exchanger is characterized in that the heat exchange tube units sequentially comprise an inner tube, an outer tube and a fin from inside to outside, wherein, a long bracing strip is arranged between the inner tube and the outer tube, an air path is arranged outside the outer tube and in the inner tube, and a liquid flow channel is arranged between the inner tube and the outer tube; each heat exchange tube unit is arranged in a rectangular array, the heat exchange tube units and the horizontal header tube vertically intersect, and the inner tube extends out of the header tube; the header tube is communicated with the heat exchange tube liquid flow channel, is mutually vertical to the inlet tube and the outlet tube and is connected with the inlet tube and the outlet tube by a connecting tube; and each row of the heat exchange tube units is provided with a support frame. The heat exchanger has large heat exchange area and high heat exchange efficiency and is easy to clean dust and overhaul an inner part.

The invention discloses a double-shell heat exchanger, belonging to a heat exchanging device, and is particular suitable for a heat exchanger two sides of which are participated in heat transfer and have greater medium temperature differences; the double-shell heat exchanger is characterized in that an outer shell is internally provided with an inner shell, wherein the outer shell is composed of a refrigerant inlet outer layer variable diameter head, a rectangular outer box body, a heating medium inlet variable diameter head, a heating medium outlet variable diameter head and a refrigerant outlet outer layer variable diameter head; the inner shell is composed of a refrigerant inlet inner layer variable diameter head, a rectangular inner box body and a refrigerant outlet inner layer variable diameter head; the outer shell is fixedly connected with one end of the inner shell; the other end of the inner shell is connected through a stuffing box seal device; the inner box body is internally provided with a heat exchanging element; the surface of the inner box body facing the inlets and outlets of the refrigerant and the heating medium is not provided with a box wall; the width of the inner box body is approximate with the width of the outer box body; and two ends of the bottom surface of the inner box body are provided with a short-circuit-proof supporting plate. By the heat exchanger, the phenomenon of leakage of the heat exchanger caused by the deformation of a seal component or cracking of welding because of temperature difference stress can be prevented when the temperature difference of the refrigerant and the heating medium is great, and the scope of application of the heat exchanger is improved.

The invention relates to a safe passage applicable between a middle shield and an equipment bridge, a first fixed platform is arranged on the inner side end face of the middle shield, personnel can goto inner bins of the middle shield and an anterior shield through the first fixed platform; a second fixed platform is arranged on one side opposite to the first fixed platform and is located on theequipment bridge; and an assembling lifting mechanism is arranged between the middle shield and the equipment bridge, the first fixed platform is provided with a telescopic platform capable of being controlled by a control device, and mutual docking of the first fixed platform and the second fixed platform is realized by virtue of the telescopic platform. The control device ensures that the telescopic platform is stretched in place, when the telescopic platform is stretched, the assembling lifting mechanism is ensured to be in a shutdown state, by adoption of the abovementioned scheme, the telescopic platform can judge by itself that work can be started under which working condition, the telescopic platform is ensured not to interfere with the assembling lifting mechanism, the safety of the equipment is improved, and the interior maintenance and cargo handling of a shield machine are facilitated.

The invention discloses a four-rotor vertical shaft impact crusher for mining. The four-rotor vertical shaft impact crusher comprises a bottom plate, a crushing cavity, rotor sets, a feeding hopper and a fixed sleeve block; driving motors are installed at the two sides of the top end of the bottom plate correspondingly, the crushing cavity is fixedly connected to the middle position of the top end of the bottom plate, and material baffles are fixedly connected to the two sides of the interior of the crushing cavity correspondingly; and the rotor sets are movably connected to the two sides of the bottom end in the crushing cavity, and the feeding hopper is fixedly connected to the top end of the cover plate. By means of the four-rotor vertical shaft impact crusher, the four rotor sets are arranged in the crushing cavity, materials enter the crushing cavity through the feeding hopper, the driving motors can drive the rotor sets to rotate, and the entering materials can be thrown out at a high speed; due to the fact that the four rotor sets are arranged in the crushing cavity, the materials thrown out by the rotor sets in pairs collide with one another, and the crushing strength is improved; and meanwhile, as the four rotor sets hedge the materials in pairs , the hedging area of the materials is increased, the collision rate of the materials is improved, and the crushing strength and the crushing rate of the materials are greatly improved.

The invention discloses a waste gas treatment device, and relates to the technical field of waste gas treatment. The waste gas treatment device comprises a treatment box body, wherein the middle partof the inner wall of the treatment box body is fixedly connected with a purifying machine set body; the upper end of the purifying machine set body is provided with an exhaust fan; the bottom of the inner wall of the treatment box body is fixedly connected with a position limiting plate; the shape of the position limiting plate is triangle. The convenient-to-dismount waste gas treatment device hasthe advantages that through the arrangement of a connecting pipe, an internal threaded pipe, a support plate, an exhaust chimney, a groove, a sealing strip, a rib plate, a second threaded hole, a second screw bolt, a shock absorption pad, a hinge, a cover plate, a pull handle and a sealing sheet, the effect of conveniently dismounting or mounting the exhaust chimney is achieved; when the exhaustchimney is used for a long time and is damaged, the exhaust chimney can be conveniently replaced due to mutual threaded connection of the connecting pipe and the internal threaded pipe; the service life of the waste gas treatment device can be prolonged; the resources of people are saved.

The invention discloses a fan blade type three-dimensional holographic image display device. The device includes a framework, a fan blade and a control panel, wherein the framework is internally provided with the fan blade, a lower portion of the fan blade is connected with a driving device, the driving device consists of a motor, a mounting groove, a base and a fixing seat, the fixing seat is internally provided with the mounting groove, and the mounting groove is internally equipped with a motor. The device is advantaged in that through heat dissipation holes, internal heat can be effectively dissipated to prevent damage caused by excessive internal heat, usage security is improved, the corresponding holographic phantom image can be presented by controlling the lighting time of LED lights through the control panel, the D-phantom stereo display effect can be achieved without wearing any polarized glasses, practicality is improved, the control panel can be quickly removed and mounted through a fixing block and a fixing slot and is easy to maintain and clean up, other control panels are further convenient to replace, and the service life is prolonged.

The invention discloses a detection control device for computer big data product development. The detection control device comprises a data acquisition and processing box, wherein a box body upper plate is mounted at the upper part of the data acquisition and processing box body; an access door plate is mounted in the box body upper plate; limiting sliding grooves are symmetrically formed in the box body upper plate; limiting sliding blocks are fixedly connected to the positions, close to the inner end, of the two sides of the access door plate; the limiting sliding blocks are located in the limiting sliding grooves; a reset spring is installed in each limiting sliding groove; one end of each reset spring is connected with the corresponding limiting sliding block; the other end of each reset spring is connected with the front end wall of the corresponding limiting sliding groove; and a rolling mechanism is installed on the side face of each limiting sliding block. Through adopting designed isolation buffer pieces, a PCB integrated board can be erected and fixed on a box body lower board, so that the contact area of the PCB integrated board and the box body lower board is reduced, when the box body of the detection control device is impacted, the vibration transmitted to the PCB integrated board is reduced, and the sensitivity of internal elements of the PCB integrated board ismaintained.

The invention relates to an efficient enzymolysis system of a microbial preparation. The problems that in the prior art, a vertical enzymolysis tank is uneven in stirring and heating, and materials are not prone to being completely discharged are effectively solved. According to the technical scheme, the device comprises a tank body and a base, and is characterized by further comprising a heat preservation air pipe, a circulating pipe, a conical part, a backflow pipe and a hydraulic cylinder. The system is simple in structure and convenient to operate, the stirring efficiency can be effectively improved, and meanwhile material residues in the material discharging process can be greatly reduced; and meanwhile, feeding and internal maintenance are facilitated, and practicability is high.

The invention discloses a boat-type tractor hull installed on a frame, which comprises a hull main body, the hull main body is provided with a concave curved surface structure used for reducing resistance during steering or reversing of a boat-type tractor, the hull main body comprises a hull floor and a hull side plate, and the hull floor and the hull side plate are integrally connected through a curved surface. A bow frame mounting plate, a hull frame mounting plate and a stern frame mounting plate which are used for mounting the frame are fixedly mounted on the hull main body, a stern plate is fixedly mounted at the stern of the hull main body, and frame mounting seats are fixedly mounted on the bow frame mounting plate, the hull frame mounting plate and the stern frame mounting plate. Compared with the prior art that a transmission system is supported by a ship shell, an existing frame mounting structure is adopted, so that the hull is simpler and lighter, the whole modeling is streamlined, the resistance is greatly reduced during paddy field operation, and meanwhile, the structural strength is better.

The invention discloses a cabinet door opening limiting and fixing seat of a machine cabinet and the machine cabinet thereof. The cabinet door opening limiting and fixing seat comprises a machine cabinet body, wherein one side surface of the machine cabinet body is hinged to a sealing plate, the upper end of one side surface of the sealing plate is rotatably connected with a supporting rod through a rotating shaft, one end of the supporting rod is fixedly connected with a bent hook, and the top of the machine cabinet body is fixedly connected with a rectangular block; a plurality of round holes penetrating through the other side surface of the machine cabinet body are uniformly formed in one side surface of the rectangular block; rectangular rods are glidingly connected into the round holes; and a plurality of rectangular holes penetrating through one side surface of each rectangular rod are uniformly formed in one side of the upper surface of each rectangular rod. The device has the advantages that the rotated sealing plate can be conveniently limited, the continuous rotation of the sealing plate is avoided, a worker can conveniently overhaul the inside of the machine cabinet body, the rectangular block is arranged on the top of the machine cabinet body, and the movable rectangular rod is arranged inside the rectangular block, so that the connection with the supporting rod can be conveniently realized, the sealing plate can be conveniently limited, and the use is convenient.

The invention discloses a compact low-resistance bag-type dust collector, which comprises a body, wherein a cover body is attached to the top of the body, a plurality of bags are installed on the inner wall of the body, a cleaning mechanism is arranged at one end of the outer wall of the body, a driving shaft is fixedly connected to the rear end face of the outer wall of a rod body, and the driving shaft is rotationally connected with the inner wall of the body through a bearing. According to the compact low-resistance bag-type dust collector, a driving shaft is connected with an external driving device so as to make the driving shaft drive a rod body and a second sliding block to rotate, when the second sliding block rotates, a sliding groove plate is driven to do reciprocating lifting motion, when the sliding groove plate moves, a supporting rod and a spray head are driven, a corrugated pipe and a telescopic rod stretch out and draw back to drive the nozzle to enter a bag to perform reciprocating lifting motion, then the nozzle drives airflow, and after a cover body is in butt joint with the body, a rubber pad in the cover body can abut against the outer wall of the body, so that the sealing stability of the body and the cover body is guaranteed.

The ultra-large circulating fluidized bed boiler comprises a hearth and a cyclone separator, the hearth is of a U-shaped structure composed of a front-side hearth, a left-side hearth and a right-side hearth, the front-side hearth, the left-side hearth and the right-side hearth are communicated with one another, the left-side hearth and the right-side hearth are symmetrically arranged relative to the axial center line of the boiler, and a notch of the U-shaped hearth faces a tail flue. And the cyclone separator is arranged in the middle area of the U-shaped hearth and is connected with the hearth through a flue. The hearth of the U-shaped structure is adopted, after the hearth is large, the width-depth ratio of the section is appropriate, the secondary air penetrability is high, meanwhile, the hearth of the U-shaped structure, the left hearth and the right hearth are communicated together, through uniform air distribution and coal feeding, it is guaranteed that flowing in the boiler is uniform, the flue gas deviation of the hearth is small, and the reliability of the boiler in the operation process is improved; the U-shaped hearth tail notch facilitates internal maintenance, the left separator and the right separator are arranged in the middle area of the U-shaped hearth, the occupied area is small, and maintenance is easy.

The multifunctional slicing machine comprises a machine box, a first motor, a cutting disc, a second motor and a hobbing cutter, a first material guide plate is arranged at an inlet of a first cutting chamber, the cutting disc is arranged at a discharging opening of the first material guide plate, the first motor is connected to the cutting disc, an adjustable cutter is arranged on the cutting disc, and the second motor is connected to the second material guide plate. A second material guide plate is arranged at an inlet of the second cutting chamber, two matched hobs are arranged below a blanking port of the second material guide plate, a second motor is connected to the hobs, material receiving sliding plates are arranged at the bottoms of the first cutting chamber and the second cutting chamber, and discharging sliding ways are arranged below the material receiving sliding plates; a side plate of the machine box is provided with a discharging opening matched with the discharging sliding way. The two cutting chambers are arranged, cutting can be conducted at the same time, the cutting efficiency is improved, the angle of the blade can be adjusted, and therefore the cutting thickness can be adjusted, different cutting requirements are met, the types of cut materials are increased, and universality is improved.