35results about How to "Control height" patented technology

The invention discloses a belt elevator which comprises a flat conveying belt. A first protecting shell is installed on the outer side of the flat conveying belt. A first hydraulic device is installed on the bottom of the first protecting shell. A transmission shaft is installed on one side of an ascending belt. The transmission shaft and a motor are in transmission connection through a transmission belt. The motor is installed on a bottom plate. A fixing plate is installed at one end of an elevating rope. The other end of the elevating rope is installed on a rolling shaft. A rocking rod is installed at one end of the rolling shaft. Universal self-locking wheels are installed at the bottom of the bottom plate. According to the belt elevator, hydraulic devices are installed at the bottom of the first protecting shell and the bottom of a second protecting shell correspondingly, and therefore the overall height of the elevator can be controlled through the hydraulic devices. The second protecting shell and the first protecting shell are in rotating connection through hinges, the inclination angle of the ascending belt can be controlled by means of a third hydraulic device, and thus flexible strain energy of the elevator is increased greatly.

The invention discloses a pillow. The pillow comprises a pillow body (1) and an external control system. The pillow body (1) mainly comprises two air bags (2), a hard board (3) and flexible materials; the hard board (3) is arranged on the upper portion of the air bags (2); the upper portion of the hard board (3) is provided with ordinary pillow materials like sponge and soft cloth; the external control system mainly comprises an electric inflator pump (4), a pressure detector (5), an exhaust valve (6) and a microcomputer controller (7); the electric inflator pump (4), the pressure detector (5) and the exhaust valve (6) are connected with the microcomputer controller (7) through wires. When the pillow is used, the height of the pillow can change automatically according to simple head actions of a user; when the user lies on the back, the pillow becomes low; when the user lies on the side, the pillow becomes high; the pillow has the very good health care function for modernists with frequent cervical spondylosis, and the user can sleep more comfortably.

The invention discloses a gas boiler constant-temperature operation method. The gas boiler constant-temperature operation method comprises the following steps that firstly, the normal operation process comprises the steps that water shunting valves, a backwater valve and a first gas valve are opened, a second gas valve and an adjusting valve are closed, and gas passes through the first gas valve,a first gas branch pipe and a gas inlet pipe and then is supplied to a gas boiler; the gas boiler and a circulating pump are started, hot water formed after heating enters a water supply main to be supplied to all heating units; backwater passes through the circulating pump and a backwater main to enter the gas boiler, and complete waterway circulation is formed; when a temperature monitoring andcontrolling mechanism of the gas boiler breaks down, the second gas valve is opened immediately, the first gas valve is closed, and the gas is supplied to the gas boiler through a gas boiler hot waterthermostatic valve; and the opening degree of the adjusting valve is controlled to control the water outlet temperature of the gas boiler. Operators do not need specialized training, and constant-temperature control can be achieved through operation of valve opening and closing. By controlling the opening degree of the adjusting valve, the set water outlet temperature of the gas boiler can be controlled.

The invention relates to a grading method of mechanism sand used for dry-mixed mortar, and the prepared dry-mixed mortar. The grading method of the mechanism sand used for the dry-mixed mortar comprises the step of sieving the mechanism sand part, which has the particle size of 4.75mm or less and the fineness modulus of 2.3-3.0, into three types of sand, i.e., coarse sand, medium sand and fine sand, wherein the fineness modulus of the coarse sand is 4.3-4.6, the fineness modulus of the medium sand is 3.7-4.0, and the fineness modulus of the fine sand is 1.4-1.7. Furthermore, the dry-mixed mortar is prepared according to a grading formula of the mechanism sand; the ratio of the two or three types of sand in the dry-mixed mortar is adjusted according to the variety of the mortar. The contentof powder with the particle size of less than 0.15 is controlled, so that the powder content of dry-mixed plastering mortar (DPM) can be further effectively controlled; the fineness modulus of dry-mixed masonry mortar (DMM) is 2.3-2.6; the powder content of the DPM is controlled to be within a range of 26-30%, and the fineness modulus of the finished product mortar is controlled to be within a range of 2.1-2.3. The quality of the mortar is guaranteed. By combining the use of a composite additive, the construction performance of the mortar is greatly improved, and the quality of the mortar isguaranteed.

The invention discloses an inflatable lifting pillow and a control method thereof. The inflatable lifting pillow comprises an inflatable pillow (1) and an external control system. The external control system mainly comprises an electric air pump (2), a pressure detector (4), an exhaust valve (4) and a microcomputer controller (5). All the electric air pump (2), the pressure detector (4) and the exhaust valve (3) are connected to the microcomputer (5) via wires. The height of the inflatable lifting pillow can be adjusted based on simple motions of a user' head, a complex sleeping posture detecting system does not needed, the inflatable lifting pillow has a health care effect for present people who have cervical spondylosis, and at the same time the user can feel more comfortable during sleeping by using the inflatable pillow.

The invention discloses a surgical skeleton rehabilitation training device which comprises a training strength adjusting mechanism, a seat height adjustment mechanism and a distance adjusting structure. A spring is installed between a first rectangular plate and a second rectangular plate, handheld rods are welded to the front side and the rear side of the top of the second rectangular plate, and pedal rods are welded to the middles of the front side wall and the rear side wall of the second rectangular plate; the top of a piston rod of a vertical electric cylinder is fixedly connected with the middle of the bottom of a seat plate, and a backup plate is integrally formed on the left side of the top of the seat plate; and the distance adjusting structure comprises a mounting plate and a left transverse electric cylinder. According to the rehabilitation training device, rehabilitation training can be conveniently conducted on bones of hands, waists and legs, the requirements of patients with different heights are met, and the exercise intensity can be conveniently adjusted; and through display of the display screen, the patients can conveniently and visually observe the intensity of initially pushing the second rectangular plate to move rightwards, and the patients can adjust the initial distance between the second rectangular plate and the seat plate according to the lengths of the arms and the legs of the patients.

The invention discloses an expansive type thermostatic hot water system which comprises gas-fired boilers, a water supply header pipe and a water return header pipe. The water return header pipe is connected with an expansion water tank which is connected with a water make-up pipe, the water make-up pipe is connected with a water make-up pump which is connected with a water make-up tank, and the water make-up tank is connected with a water softener which is connected with a municipal tap water pipe network; circulating pumps are arranged in the positions, located at inlets of the gas-fired boilers, of the water return header pipe; the tail end of the water supply header pipe is connected with a water distribution tank, and the tail end of the water return header pipe is connected with a water collecting tank; and the gas-fired boilers are connected with a gas inlet pipe, a first gas branch pipe and a second gas branch pipe are connected to the gas inlet pipe in series, and a gas-firedboiler hot water thermostatic valve is arranged on the second gas branch pipe in a serial connection mode. Effects of the expansive type thermostatic hot water system can be achieved by only closing afirst gas valve and opening a second gas valve, the heat generating capacities of the boilers are adjusted by adjusting the gas inlet capacities of the gas-fired boilers, accordingly, thermostatic control is achieved, and the outlet water temperatures of the gas-fired boilers are controlled to be within a preset range.

The invention provides a process for accurate pruning of camellia oleifera trees, and relates to a camellia oleifera planting technology. The process solves the problems of the use of a knife, incising directions and angles, and stubble positions and heights, and aims at stem thinning and cutting back in main technical measures of pruning, wherein the stem thinning refers to cutting off an entire branch for the purpose of preventing a new branch bud from regrowing at an original point of attachment, and the cutting back refers to cutting off a part of a branch tip for the purpose of controlling apical dominance, and promoting growth of lateral branches and buds; the growth direction of a branch is changed. The process is characterized in that the stem thinning and the cutting back need to achieve 'close attachment, flatness and inclination' of a pruning wound, wherein 'close attachment' refers to that the pruning wound needs to be closely attached to a root part of a branch during stem thinning to leave no shearing pile; the 'flatness' refers to enabling directions of kept branches and buds to be consistent with that of the pruning wound to achieve basic parallelism during cutting back; the 'inclination' refers to that all pruning wounds are smooth and have certain inclination angles to avoid a horizontal state, and flat shearing has a biggest hidden trouble that incisions cannot heal for a long time, and accumulates water easily to cause mildew and rot.

The invention discloses an operating method of a charging pile monitoring room air-conditioning system. The operating method comprises a temperature control operating process and a humidity control operating process. The temperature control operating process comprises the steps that when the initial temperature in a monitoring room is higher than 25 DEG C, the charging pile monitoring room air-conditioning system operates according to a first operating mode; when the temperature in the monitoring room is less than or equal to 25 DEG C and is greater than or equal to 18 DEG C, a compressor stops operating; and when the temperature in the monitoring room is less than 18 DEG C, the charging pile monitoring room air-conditioning system operates according to a second operating mode. The humidity control operating method comprises the following steps that when the relative humidity is lower than 45%, the charging pile monitoring room air-conditioning system operates according to the first operating mode; when the relative humidity is greater than or equal to 45% and is less than 70%, neither humidification nor dehumidification operation is carried out; and when the relative humidity is higher than 75%, the charging pile monitoring room air-conditioning system operates according to the second operating mode. The temperature and humidity in the monitoring room can be kept in constant intervals all year around, the requirements of the monitoring room of a charging pile are met, the flow of a refrigerant is adjusted by employing the temperature variation in the monitoring room so that the charging pile monitoring room air-conditioning system is kept in stable operating state for a long time, and frequent starting and stopping of various components are not required.

The invention relates to a river water surface power generation device, which comprises at least one power generation unit, wherein each power generation unit is provided with power generation equipment, the interior of at least one power generation unit is provided with a power generator, a machine frame is arranged in each power generation unit, a lifting device is arranged at the periphery of each machine frame and comprises a plurality of lifting rings, and the lifting rings are arranged on the corresponding machine frame and correspondingly sleeve a plurality of positioning columns around the corresponding machine frame. The river water surface power generation device has the advantages that each lifting device is arranged in the corresponding power generation unit, each power generation unit can be lifted by the matching of the lifting rings and the positioning columns in the corresponding lifting device, and the height of each power generation unit is controlled, so the stability of each power generation unit is guaranteed, the shaking of each power generation unit is prevented, and the power generation efficiency is guaranteed.

The invention discloses a fan casing assembly welding method and a tool for the fan casing assembly welding method and belongs to the technical field of the welding technology. By the adoption of the fan casing assembly welding method and the tool for the fan casing assembly welding method, the problems that in the welding process, the weld joint forming quality is poor, root reinforcement exists on a weld joint, deformation is serious, dimension errors are large and blade protection is difficult are solved. The fan casing assembly welding method comprises the following steps of preparation before welding, positioning, assembly of a baffle, electron beam welding, inspection after welding, assembly of a heat treatment tool and vacuum heat shaping. The baffle is composed of an upper plate and a lower plate. The fixing tool for welding comprises a base plate, a shaft, a gland, a positioning ring, a supporting ring and a plurality of pressing plates. The heat treatment tool comprises a base plate, a cover plate and a plurality of pressing blocks.

The invention provides a voltage-regulating and power-saving power distribution cabinet, which has the advantages that not only is a switch function of a control circuit of a traditional power distribution cabinet is reserved, but a function of regulating voltage fluctuation phenomena and electric energy waste phenomena in a power grid line is added. The voltage-regulating and power-saving power distribution cabinet is connected to a high voltage circuit and has the technical scheme of comprising an outer shell of the power distribution cabinet, a detection and control module, a voltage-regulating and power-saving module, a security protection module, an input end and an output end, wherein the three modules are mutually connected and are arranged in the outer shell of the power distribution cabinet. Through correspondingly operating a control button of a panel of the power distribution cabinet, the functions of voltage regulation and electricity conservation can be fulfilled.

The invention discloses an anti-explosion intelligent inspection robot. The anti-explosion intelligent inspection robot comprises a machine body as well as a first crawler belt and a second crawler belt which are installed on the two sides of the machine body, the upper surface of the machine body is fixedly connected with an anti-explosion sensing box for sensing temperature, humidity, combustible dust concentration and combustible gas, and the outer side of the sensing box is fixedly connected with a display controller; an adjusting mechanism is installed in the position, located on the front side of the sensing box, of the upper surface of the machine body, a camera is fixedly connected to the adjusting mechanism, the height of the camera is freely adjusted through the adjusting mechanism, and an anti-explosion laser radar and an anti-explosion and anti-collision sensor are further arranged. The anti-explosion inspection robot is provided with a series of sensors, can replace inspection personnel to enter sites such as the explosive gas mixture environment and the like for inspection and detection, and can realize automatic navigation and automatically avoid obstacles, and a database is used for comparison of the same kind, so that various problems possibly occurring in the processes of model selection, installation, maintenance and the like of anti-explosion electrical equipment are analyzed.

The invention discloses a low-floor pure electric bus, and relates to the technical field of automobiles. The low-floor pure electric bus comprises an underframe, a top cover and a plurality of firstbattery packs, the underframe is of a truss structure formed by splicing a plurality of steel pipes, and a plurality of mounting cabins are arranged in the middle section of the underframe; and each first battery pack comprises a plurality of short battery cell single bodies which are connected in series and in parallel, and the first battery packs are detachably mounted in the mounting cabins. The height of battery compartments is fully compressed by adopting short battery cell monomers in a breakthrough manner, so the ground clearance of the underframe is effectively controlled, one-step stepping can be achieved, the underframe is flat and free of steps, the design of a front-to-back horizontal all-low floor in the bus is achieved, the safety and control stability of the whole bus are improved, and urban bus operation is more efficient.

The invention discloses a fitness type water body surface aerator which comprises a fitting part and an aeration part, wherein the fitting part comprises a handheld door frame which is fixed on the ground; a fitting barrel comprises a first rotating shaft and a first barrel body which is fixed on the first rotating shaft; the first rotating shaft which is horizontally arranged is rotationally arranged on the handheld door frame in a penetration manner; the aeration part comprises a bracket; the bracket can be moved and positioned along the left side surface of the handheld door frame; the aeration barrel comprises a second rotating shaft and a second barrel body; the second rotating shaft is rotationally arranged on a bracket in a penetration manner; a plurality of water hitting strips are arranged on the second barrel body in the radial direction in an external radiation manner; the inner ends of the water hitting strips are fixed on the second barrel body; a water body is positioned on motion tracks of the outer ends of the water hitting strips; the second rotating shaft is parallel to the first rotating shaft; the left end of the first rotating shaft penetrates through the handheld door frame; a driving wheel is fixed on the left end of the first rotating shaft; the right end of the second rotating shaft penetrates through the bracket; a driven wheel is fixed on the right end of the second rotating shaft; the driving wheel and the driven wheel are connected through a conveyer belt, so that the second rotating shaft can be driven to rotate.

The invention relates to an adjustable self-walking hydraulic crane. The adjustable self-walking hydraulic crane comprises a chassis and a crane mechanism, the crane mechanism is arranged on the chassis through a rotating disc, a lifting moving mechanism capable of lifting the chassis is arranged at the bottom of the chassis, and a safety auxiliary mechanism capable of enabling the adjustable self-walking hydraulic crane to be stably parked is arranged above the chassis. According to the adjustable self-walking hydraulic crane, the height of the chassis can be increased, so that the possibility of equipment damage during wading is reduced, and the potential safety hazard is further reduced; and meanwhile, when articles are hoisted, high safety and stability are achieved.

The invention discloses an altimeter simulator and a simulation method thereof. The simulator includes a pre-amplifier module, a post-amplifier module, a local oscillator module, a binary delay line switch matrix, a pre-mixer, a post-mixer, a link A first switch, a link A second switch, a link B first switch, and a link B second switch. The link A first switch and the link A second switch are connected to each other to form a first-stage highly simulated link A. The link B first switch and the link B second switch are connected to each other to form a second-stage highly simulated link B. Thealtimeter simulator and the simulation method thereof effectively reduce the simulation delay of ''absolute 0m'' of the altimeter simulator to reduce the simulation delay to 2.5 ns, thereby reducing actual simulation height corresponding to the ''absolute 0m'' to 0.375 m, effectively improves the height simulation precision of the altimeter simulator, makes the inspection of an altimeter more accurate and reasonable, and helps to improve the test accuracy of the altimeter.

The invention aims to solve the dust problem of building construction, and discloses a dust cleaning device for building construction, which comprises a material passing box, a connecting rod is fixedly connected to the right side of the upper surface of the material passing box, a universal rod is fixedly mounted on the right side surface of the connecting rod, and an illuminating lamp is mounted at the outer end of the universal rod. A holding ring is fixedly connected to the top end of the connecting rod, a material passing pipe communicates with the upper surface of the material passing box, a pull rope is connected between the material passing pipe and the connecting rod, a connecting cover is fixedly connected to the lower end face of the material passing box, guide plates are symmetrically installed on the front side face and the rear side face of the material passing box, and sliding rods are symmetrically arranged in the guide plates in a sleeved mode. The surfaces of the sliding rods are sleeved with first spiral springs, universal wheels are installed at the lower ends of the sliding rods, and a ventilation cylinder is fixedly installed on the right side face of the material passing box. By means of the shielding cloth, an umbrella-shaped structure is formed to be supported at the window position, air blowing in the blank room is achieved through external wind power, indoor dust collection is achieved, and the environment is better protected.

The invention discloses a charging pile monitor room air conditioning system which comprises an electronic control device, a refrigerating system and a humidity control system. The refrigerating system comprises a compressor, a two-position four-way electromagnetic valve, an indoor heat exchange coil pipe, an outdoor heat exchange coil pipe, a mechanical temperature control valve and a capillary tube. An air suction port of the compressor is connected with a first connector. An exhaust port of the compressor is connected with a second connector. A third connector is connected with the indoor heat exchange coil pipe. A fourth connector is connected with the outdoor heat exchange coil pipe. The outdoor heat exchange coil pipe is connected with the capillary tube. The capillary tube is connected with the mechanical temperature control valve. The mechanical temperature control valve is connected with the indoor heat exchange coil pipe. The humidity control system comprises a humidifier anda humidity sensor. According to the charging pile monitor room air conditioning system, the temperature and humidity inside a monitor room can be kept in a constant interval all year round, requirements of the charging pile monitor room are met, the flow of a refrigerant is adjusted by means of the temperature change in the monitor room, the system is kept in a stable operation state for a long time, the situation that all components are turned on and turned off frequently is not needed, and the service life of all the components of the charging pile monitor room air conditioning system is prolonged.

The invention discloses a panel wire drawing machine, and relates to the field of panel machining machines. The panel wire drawing machine comprises a rack. The rack is provided with a workbench top, a conveying mechanism, a lower track and an upper track. A spindle with a saw web and a spindle motor are arranged on the part, below the workbench top, of the rack. The part, over the spindle, of the workbench top is provided with a planing slit for the saw web to stretch into, and the part, above the planing slit, of the rack is provided with a floating pressing mechanism. The spindle is detachably and horizontally erected on the lower track, the lower track is horizontally arranged on the rack through a lifting mechanism in a vertical lifting manner, and the upper track can be arranged on the lower track in the length direction of the spindle in a sliding manner. The panel wire drawing machine has the beneficial effects that the spindle and the saw web can be replaced more safely, more easily and more rapidly through a two-dimensional sliding table composed of the lifting mechanism, the lower track and the upper track so that the operation time on replacing and adjusting of the spindle can be shortened, and the work efficiency of equipment is improved.

The invention discloses a green food package printing device. The green food package printing device comprises a cross plate, a material storage box and a base, wherein the material storage box is fixed at the front end of the upper surface of the cross plate through bolts, a bellows is fixed to the middle of the lower surface of the material storage box through bolts, and a hot-air blower is arranged on the rear side of the material storage box; the lower end of the bellows is fixed to a fixed frame, the fixed frame penetrates through the middle of a fixed plate, and a printing head is installed inside the lower end of the fixed frame; the printing head penetrates through gears and the fixed frame to be connected with a first motor, connecting plates are fixed to the left side and the right side of the upper surface of the fixed plate through bolts, one connecting plate is fixed to a hydraulic rod through bolts, and the hydraulic rod is installed in a hydraulic cylinder; and the gearsare fixed at the outer ends of two rotating shafts and are meshed with half gears, each rotating shaft is connected with a winding shaft through a coupler, and each half gear is installed on an output shaft of a second motor through bolts. According to the green food package printing device, the gears and the half gears are arranged, the food printing paper retaining time can be controlled, and therefore accurate printing is convenient to achieve.

The invention discloses a roller type multi-freedom-degree dry and wet integrated sweeping device in the technical field of road sweepers. The device comprises a vehicle frame and further comprises aflat rotating frame, a sweeping brush frame, a flat rotating oil cylinder, a lifting oil cylinder, a fulcrum shaft, a movable lever, a rotary drive motor, a transmission roller, a sweeping brush, a spraying system and a controller. The flat rotating frame can be horizontally and rotationally installed at the bottom of the vehicle frame, the sweeping brush frame and the flat rotating frame are fixedly connected into a whole, a piston rod of the flat rotating oil cylinder is hinged to the flat rotating frame, and a cylinder barrel of the flat rotating oil cylinder is hinged to the vehicle frame;and the movable lever can be longitudinally and rotationally installed on the sweeping brush frame through the fulcrum shaft, the other end of the movable lever is hinged to a piston rod of the lifting oil cylinder, a cylinder barrel of the lifting oil cylinder is hinged to the sweeping brush frame, the rotary drive motor is installed on the movable lever, and the sweeping brush is axially arranged on the outer circumferential face of the transmission roller in the axial direction of the transmission roller. The device has the sufficient freedom degree and can prevent mud spots from being splashed in the sweeping process.

The invention provides an elastic cathode ring for an electroosmosis dehydrator. The elastic cathode ring comprises current-conducting plates, bases, hinge pull rods and return springs, wherein the bases are fixedly arranged on an end plate of a roller, and the current-conducting plates are circularly and uniformly distributed on the circumference of the base; each of the current-conducting plates consists of an inner arc side, an outer arc side and an arc top and the cross section of each current-conducting plate is n-shaped, and the edge of the arc side is adaptive to the external circle of a roller; each of the hinge pull rods passes through the roller and each base and is fixedly connected with each current-conducting plate, and a gap is reserved between each base and the inner arc side on the inner side; the return springs are arranged between the arc top and the corresponding base. When a filter screen looses or partially looses, the roller and the filter screen are matched in a non-tight manner and the return springs rebound, and the elastic cathode rings and the cathode filter screen are further in a communicated state, so that the heating and igniting phenomena caused by poor partial contact of the cathodes are reduced, a filter cake can be further compacted, the dehydrating effect is remarkably improved, and the reliability of equipment is remarkably improved.

The invention discloses a machining method and a welding method of a steel blank with an aluminum-silicon coating. The machining method comprises the following specific steps that S1, a base body and a pre-coating of a to-be-welded part of the blank are removed, and at least one groove structure is formed; S2, the roots of the groove structures of at least two blanks make contact to form a welding bead; S3, filling of metal welding wires is conducted for welding; and S4, after welding is completed, cooling is conducted to the normal temperature. According to the machining method and the welding method of the steel blank with the aluminum-silicon coating, the aluminum-silicon coating at the welded position is thoroughly removed in the mode that the edges, to be welded, of plates is beveled, and no surface coating layer is brought into a molten pool in the welding process; and according to the groove structures, the toughness and the strength of a welding joint of aluminum-silicon coating plates can be remarkably improved, and the problems of stamping cracking and delayed cracking of the welding joint due to excessive fusion of aluminum elements in the welding joint during welding of the aluminum-silicon coating plates are solved.

The invention relates to a grading method of mechanism sand used for dry-mixed mortar, and the prepared dry-mixed mortar. The grading method of the mechanism sand used for the dry-mixed mortar comprises the step of sieving the mechanism sand part, which has the particle size of 4.75mm or less and the fineness modulus of 2.3-3.0, into three types of sand, i.e., coarse sand, medium sand and fine sand, wherein the fineness modulus of the coarse sand is 4.3-4.6, the fineness modulus of the medium sand is 3.7-4.0, and the fineness modulus of the fine sand is 1.4-1.7. Furthermore, the dry-mixed mortar is prepared according to a grading formula of the mechanism sand; the ratio of the two or three types of sand in the dry-mixed mortar is adjusted according to the variety of the mortar. The contentof powder with the particle size of less than 0.15 is controlled, so that the powder content of dry-mixed plastering mortar (DPM) can be further effectively controlled; the fineness modulus of dry-mixed masonry mortar (DMM) is 2.3-2.6; the powder content of the DPM is controlled to be within a range of 26-30%, and the fineness modulus of the finished product mortar is controlled to be within a range of 2.1-2.3. The quality of the mortar is guaranteed. By combining the use of a composite additive, the construction performance of the mortar is greatly improved, and the quality of the mortar isguaranteed.

The invention provides an elastic cathode ring for an electroosmosis dehydrator. The elastic cathode ring comprises current-conducting plates, bases, hinge pull rods and return springs, wherein the bases are fixedly arranged on an end plate of a roller, and the current-conducting plates are circularly and uniformly distributed on the circumference of the base; each of the current-conducting plates consists of an inner arc side, an outer arc side and an arc top and the cross section of each current-conducting plate is n-shaped, and the edge of the arc side is adaptive to the external circle of a roller; each of the hinge pull rods passes through the roller and each base and is fixedly connected with each current-conducting plate, and a gap is reserved between each base and the inner arc side on the inner side; the return springs are arranged between the arc top and the corresponding base. When a filter screen looses or partially looses, the roller and the filter screen are matched in a non-tight manner and the return springs rebound, and the elastic cathode rings and the cathode filter screen are further in a communicated state, so that the heating and igniting phenomena caused by poor partial contact of the cathodes are reduced, a filter cake can be further compacted, the dehydrating effect is remarkably improved, and the reliability of equipment is remarkably improved.

The invention discloses supporting platforms with adjustable dip angles and an adjusting support. Each supporting platform with the adjustable dip angles comprises an supporting frame, a rotating bodyand a locking mechanism, wherein each rotating body is movably connected to the corresponding supporting frame and can rotate relative to the supporting frame, and each locking mechanism is arrangedon the corresponding supporting frame and can enable the corresponding rotating body to be tightly fixed after the rotating body rotates in place; the adjusting support comprises the two supporting platforms with the adjustable dip angles, a conveying bottom frame and a middle part; the supporting platforms with the adjustable dip angles are used for storing materials; the conveying bottom frame is used for supporting the supporting platforms; the middle part can connect the conveying bottom frame and the supporting platforms at the same time and can adjust the height of the supporting platforms; and the conveying bottom frame is composed of two small bottom frames and a horizontal rod respectively and fixedly connected with the two small bottom frames. According to the supporting platforms with the adjustable dip angles and the adjusting support, the supporting platforms can be driven to move up and down just through the rotation of the middle part or the upper portion of the middle part, and the supporting platforms can be obliquely rotated, so that the supporting platforms with the adjustable dip angles and the adjusting support drive the materials on the supporting platforms tomove up and down or tilt, and have the functions of adjusting the height of the materials and the dip angles, and the conveying bottom frame is able to make the supporting frames to walk with the materials.