30results about How to "Solve the disadvantages of fragile" patented technology

The invention relates to a side transducer for detecting a rolling pressure of a rolling mill. A lateral surface of an upright post of a frame is provided with a force transducer. The force transducer is vertically arranged along a center line of the upright post of the frame. The force transducer is made of a permalloy sheet. The permalloy sheet is vertical to the upright post of the frame. The middle part of the permalloy sheet is provided with a strip hole. Both sides of the strip hole are wound by a magnet exciting coil and a measuring coil respectively. Both ends of the force transducer are provided with upper and lower clamping heads. The upper and lower clamping heads are fixed with force transmitting pull rods. The force transmitting pull rods pass through a support saddle of the frame respectively. End parts of the force transmitting pull rods are provided with force transducer pretightening force regulating nuts. Each force transmitting pull rod is a stepped shaft, and the diameter ratio of a small shaft end to a big shaft end is 1: 2-10. When the rolling mill carries out rolling, the upright post of the frame of the rolling mill generates elastic deformation under the action of a reaction force. The size of the elastic deformation is proportional to a rolling force. The rolling force can be calculated by measuring the strain of the upright post of the frame. The side transducer for detecting the rolling pressure of the rolling mill has the advantages of convenient installation and disassembly, high detection sensitivity and small error.

The invention discloses a motor speed regulating voltage Vsp cut-off circuit of an air conditioning system of a brushless motor. The cut-off circuit comprises an indoor motor speed regulating voltage cut-off circuit and an outdoor motor speed regulating voltage cut-off circuit, wherein the indoor motor speed regulating voltage cut-off circuit comprises a first partial voltage shaping circuit, a first direct-current voltage detection circuit and a Vsp1 voltage cut-off circuit; and the outdoor motor speed regulating voltage cut-off circuit comprises a second partial voltage shaping circuit, a second direct-current voltage detection circuit and a Vsp2 voltage cut-off circuit. The cut-off circuit disclosed by the invention has the advantages that indoor and outdoor fan motors are prevented from being damaged when power failure occurs, the operational safety and reliability of the motor is improved, and the like.

The invention relates to a uniform water distribution device realizing variable flow of a reverse-flow cooling tower, and the uniform water distribution device comprises a water inlet pipe (1) and a horizontal water distributor, wherein the water inlet pipe (1) is installed inside a cooling tower body or the horizontal water distributor is installed on the water inlet pipe (1) outside the tower body, the horizontal water distributor comprises a plurality of water distribution pipes (14) and a plurality of water distribution nozzles (12), a water inlet of each water distribution pipe (14) is connected with the water inlet pipe (1), the water distribution nozzles (12) are respectively installed on a pipe body of a corresponding water distribution pipe (14), and a plurality of water distribution nozzles (12) on the water distribution pipe (14) are communicated with one another, and each water distribution nozzle (12) is higher than the water distribution pipe (14). Due to the adoption of the uniform water distribution device, the defect that the nozzle or the rotary water distributor and the rotary nozzle are easy to damage because of movable parts can be simultaneously solved.

The invention relates to a refill type writing pen, comprising a refill, a pen tube and a refill base which is arranged in the pen tube and is used for inserting and positioning the refill. A section of frustum is formed at the periphery of the refill base, and the section of one side of the frustum, which is close to the head part of the pen tube, is greater than the section of one side of the frustum, which is close to the tail part of the pen tube. The surface of the frustum supports against a press button with one side extending out of the inner wall of the pen tube, and the press button is positioned at a finger holding part of the pen tube. The refill type writing pen also comprises a spring which is sleeved on the refill, one end of the spring supports against a boss protruding from the inner wall of the pen tube, and the other end of the spring supports against the refill base. The operation of extending the head part of the refill out of the pen tube and retracting back is controlled by pressing the press button simultaneously when fingers hold the pen tube during writing, and whether the head part of the refill exposes or not is flexibly controlled according to the writing requirement, therefore, the defects that the head part of the refill is easy to be damaged when the traditional refill type writing pen is used are overcome.

The invention discloses a brushless DC (direct current) motor air conditioning system control circuit comprising a microcontroller U4, an indoor DC fan motor rotational speed control circuit, an outdoor DC fan rotational motor rotational speed control circuit, an outdoor DC motor fixed rotational speed and adjustable rotational speed switching circuit, an indoor motor speed regulation voltage shutdown circuit, an outdoor motor speed regulation voltage shutdown circuit and a temperature detection circuit, wherein the outdoor DC fan motor rotational speed control circuit comprises a first circuit unit and a second circuit unit; the circuit board of the brushless DC (direct current) motor air conditioning system control circuit consists of an outdoor control panel and an indoor control panel; and the outdoor control panel and the indoor control panel are connected through plug connectors CN2 and CN4. The brushless DC (direct current) motor air conditioning system control circuit can perform speed regulation control on the indoor and outdoor fan motors at random to achieve a good heating effect, and match the outdoor motor fixed rotational speed control and closed loop speed regulation control at random so as to improve the development convenience of products.

The invention relates to a manufacturing method of plastic bottles. Firstly, preforms are arranged inside a preheating device for preheating. Pre-heated preforms are conveyed into matched molds through a conveyance rack. A blow molding device is arranged on the matched molds. The blow molding device is injected into the preforms by using high pressure gas to make plastic bottles. A handle conveyor is arranged beside the conveyance rack, which feeds handles into corresponding clamping positions on the fringe of the cavity of the matched molds automatically. During blowing, the wall of the preforms expands and is bonded to the handles arranged at the fringe of the cavity of the molds. The invention also discloses an equipment to achieve the manufacturing method, which comprises a preheating device, a clamp device and a blow molding device. A preform conveyance rack is arranged between the clamp device and the preheating device. A handle conveyance device is arranged beside the conveyance rack. The invention improves the production efficiency of plastic bottles and is used safely and reliably.

The invention belongs to the field of composite materials and provides a honeycomb forming positioning device. Positioning is accurate, and the service life is long. According to the technical scheme,a mounting hole is formed in the position, outside the part edge line, of a forming mould (1), a step positioning pin (2) is mounted in the hole, the upper portion of the positioning pin (2) is sleeved with a hole of a positioning ring (3), and the external section of the positioning ring (3) is in a C shape; a honeycomb (5) is placed on the mould (1), a positioning device (4) is a composite material layer, and the positioning ring (3) and the positioning device (4) are cemented; and the upper surface of the honeycomb (5) and the positioning device (4) are cemented through a glue film (6), and the lower surface of the honeycomb (5) and the forming mould (1) are cemented through the glue film (6).

The invention discloses a control method for artificial limb knee and ankle joints and relates to artificial limb knee joints. The control method includes the steps that firstly, the positions, on which Hall sensors are to be installed, on an artificial limb knee joint are determined through a test, the three Hall sensors are installed, a controller is installed in a groove in the rear cover of the artificial limb knee joint, and different gaits are judged and identified by the controller according to signal variation of the three Hall sensors; secondly, according to identification of the gaits in the first step, the controller judges different gaits according to the signal variation of the Hall sensors and controls a knee joint motor and an ankle joint motor to move up and down according to different gaits, different damping is generated according to different gaits and different step speeds, and therefore control of the gaits is achieved and coordination of the knee and the ankle is achieved. The defects that intelligent artificial limbs are not coordinate in gait and are prone to damage and energy consumption of wearers is large in the prior art are overcome.

The invention discloses an ecological sinking bed for deep polluted river treatment and in-situ remediation and a method thereof, and belongs to the field of environmental protection devices. The ecological sinking bed comprises a frame body, and the frame body is divided into plant planting areas located on the two sides and a filling area located in the middle. The plant planting area is used for planting aquatic plants, and the filling area is sequentially filled with zeolite, a solidified microorganism filler and a three-dimensional elastic filler from bottom to top in a layered mode. Theecological sinking bed is characterized in that the water body is purified in multiple modes by combining the physical adsorption and microbial degradation effects of the filler and the zeolite surface and the purification function of plants such as reeds, and a knife edge is designed for cutting the reeds, so that the problems of unfavorable conditions of easy damage, short tolerance time and thelike of floating beds due to large rain water flow speed and sun exposure and difficult recovery caused by rooting of the reeds are solved. The ecological settling bed is nontoxic and harmless in material, is not easy to damage, is durable, is convenient to recycle and reuse after finishing, and does not generate secondary pollution.

The invention discloses a continuous cutting device for processing a touch screen. The continuous cutting device comprises a device main body and a pressing plate, wherein a first motor is arranged above the device main body; a lifting stretching arm is jointed under the first motor; a cross bar is arranged under the lifting stretching arm; a laser cutting device is arranged under the cross bar; distance sensors are arranged on left and right sides of the cross bar; an operation platform is arranged at the center in the device main body; a sucker is arranged above the operation platform; spraying nozzles are arranged on left and right sides of the operation platform; a glass residue collecting container is arranged under the operation platform; a second motor is arranged on the left side above the device main body; a connecting rod is jointed under the second motor; and a pressing plate is arranged under the connecting rod. The continuous cutting device for processing the touch screen has a simple structure and is reasonably designed. A laser cutting device can be used for performing more accurate cutting.

The invention discloses an ecological sinking bed and method for removing nitrogen, phosphorus and heavy metals in riverway sediment. The ecological sinking bed comprises a sinking bed body, a planting basket, a substrate, zeolite, a mesh bag and filler. A plant is rooted in the substrate with the top of the plant extending beyond a top grid; the mesh bag is filled with the zeolite and placed around the plant; and the filler is connected in series and bound with the interior of the planting basket and surrounds the plant. The sinking bed is characterized in that the physical adsorption and microbial degradation effects of the surfaces of the substrate and the zeolite and the purifying effect of the aquatic plant are combined, a water body is purified in multiple ways, and the defects thata floating bed is likely damaged and short in tolerance time due to the high speed of rainwater and sun exposure are overcome. The materials of the ecological sinking bed are nontoxic and harmless, and the sinking bed is not easy to damage, and is durable, convenient to recycle for reuse when not in use, free of secondary pollution and easy to popularize and implement since the raw materials are low in cost and wide in source.

The invention discloses a method for shaping fabric three-dimension top angle and a relative structure, wherein the method comprises two steps that bending fabric to contact a first edge and a second edge of the fabric, and connecting the overlapped edges of the first and second edges to form a three-dimension top angle, fixing a waterproof cloth on the top angle, which avoids turnover process, with high efficiency. The waterproof cloth is directly covered on the overlapped edge to seal the connection part of the first and the second edges, without affecting appearance, while the waterproof cloth can avoid water leakage and improve strength.

The present invention discloses a decoration lamp set with extensible and replaceable light-emitting diodes, which comprises an electrical connecting line, an electrical connector, a circuit base, a light-emitting diode base, a replaceable light-emitting diode and a replaceable lampshade, wherein the light-emitting diode base is sealed on the circuit base to prevent short circuit damage cuased bypermeating water; the electrical connector combines with the other electrical connector of the other light-emitting diode decoration lamp set with a connection mode; the light-emitting diode can be replaced by a different color light-emitting diode as required, the lampshade can be replaced by an other lampshade having different modeling, thereby solving the defects that all the traditional light-emitting diode decoration lamp set are the same color, modeling and length, and are only used in a special occasion and atmosphere.

The invention discloses an ultra-deep vertical shaft high-load spiral winding friction hoisting system and method. The ultra-deep vertical shaft high-load spiral winding friction hoisting system comprises two movable motors, two bearing pedestals horizontally moving along the axes of transmission bearing pedestals with spiral grooves, the two fixedly-installed transmission bearing pedestals with the spiral grooves, a spiral friction roller matched with the two transmission bearing pedestals with the spiral grooves, and a plurality of sections of hoisting steel wire ropes wound on a groove of the spiral friction roller. The two motors drive the spiral friction roller to rotate through a speed reducer, the spiral friction roller is supported by the bearing pedestals on the two sides of a rotary friction roller, the steel wire ropes wound on the spiral friction roller are wound and hoisted along the groove of the spiral friction roller through the friction force between the steel wire ropes and the spiral friction roller, the four sections of steel wire ropes are lifted or placed down at the same time, and the spiral friction roller makes axial movement along the transmission bearingpedestals with the spiral grooves while the steel wire ropes are hoisted. The defects that when a friction hoisting mode is adopted in an ultra-deep vertical shaft, the stress value of the junction ofsteel wire ropes and a container fluctuates largely, and when a winding hoisting mode is adopted, the steel wire ropes are prone to being damaged and broken as being wound around a roller too much are overcome.

The invention discloses an ultra-deep vertical shaft high-load spiral winding friction hoisting system and method. The ultra-deep vertical shaft high-load spiral winding friction hoisting system comprises two movable motors, two bearing pedestals horizontally moving along the axes of transmission bearing pedestals with spiral grooves, the two fixedly-installed transmission bearing pedestals with the spiral grooves, a spiral friction roller matched with the two transmission bearing pedestals with the spiral grooves, and a plurality of sections of hoisting steel wire ropes wound on a groove of the spiral friction roller. The two motors drive the spiral friction roller to rotate through a speed reducer, the spiral friction roller is supported by the bearing pedestals on the two sides of a rotary friction roller, the steel wire ropes wound on the spiral friction roller are wound and hoisted along the groove of the spiral friction roller through the friction force between the steel wire ropes and the spiral friction roller, the four sections of steel wire ropes are lifted or placed down at the same time, and the spiral friction roller makes axial movement along the transmission bearingpedestals with the spiral grooves while the steel wire ropes are hoisted. The defects that when a friction hoisting mode is adopted in an ultra-deep vertical shaft, the stress value of the junction ofsteel wire ropes and a container fluctuates largely, and when a winding hoisting mode is adopted, the steel wire ropes are prone to being damaged and broken as being wound around a roller too much are overcome.

The invention provides a foldable multifunctional measuring scale for a turnout. The foldable multifunctional measuring scale comprises a main scale and a vernier sleeve, the vernier sleeve is movably arranged on the main ruler; the main ruler comprises a reference end plate, two rotating end plates and a first ruler body. One end of the first ruler body is connected with the reference end plate, the two rotating end plates are connected with the reference end plate, and the two rotating end plates are symmetrically arranged on the two sides of the first ruler body; a sleeve is arranged on the bottom surface of the rotating end plate; The connecting line of the inner side measuring surfaces of the sleeves on the two rotating end plates and the zero graduation of the first graduated scale are in the same vertical plane; a first graduated scale is arranged on the first ruler body; the vernier sleeve comprises a main vernier sleeve. Vernier scales are arranged on the upper surface of the main vernier sleeve, and a raised measuring block is arranged on the lower surface of the main vernier sleeve. The measuring scale is multipurpose and rich in function. Functions of a gauging ruler and an offset ruler are combined, track gauges, offset distances, checking intervals, back protection distances and other turnout laying geometric dimensions can be measured, field operation and measuring tool management are facilitated, and the working efficiency is improved.

The invention relates to the technical field of high-pressure airless spraying equipment. A common high-pressure exhaust valve is sealed by a central metal ball and a soft face in a contacted mode, the tight fit sealing mode is adopted for sealing, under the action of high pressure, the metal ball and the soft sealing face are prone to being damaged by high-pressure cutting when the high-pressure exhaust valve is opened instantly, and consequently a machine cannot work normally. A high-pressure exhaust valve for a high-pressure airless sprayer is provided by the invention and is characterized in that the high-pressure exhaust valve for the high-pressure airless sprayer comprises an exhaust valve body and a hand wheel; the exhaust valve body comprises a base, an exhaust valve bush, a ceramic ball, a ceramic ball fixing rod, an exhaust valve screw, a clamp spring and sealing rings; the base, the ceramic ball, the ceramic ball fixing rod and the exhaust valve screw are arranged in the exhaust valve bush; and the base is in interference fit with an end hole of the exhaust valve bush. The sprayer high-pressure exhaust valve which is high in high-pressure bearing capacity, not liable to be blocked, long in service life and easy to machine is designed by modifying traditional air exhaust valve structures.

The invention discloses a brushless DC (direct current) motor air conditioning system control circuit comprising a microcontroller U4, an indoor DC fan motor rotational speed control circuit, an outdoor DC fan rotational motor rotational speed control circuit, an outdoor DC motor fixed rotational speed and adjustable rotational speed switching circuit, an indoor motor speed regulation voltage shutdown circuit, an outdoor motor speed regulation voltage shutdown circuit and a temperature detection circuit, wherein the outdoor DC fan motor rotational speed control circuit comprises a first circuit unit and a second circuit unit; the circuit board of the brushless DC (direct current) motor air conditioning system control circuit consists of an outdoor control panel and an indoor control panel; and the outdoor control panel and the indoor control panel are connected through plug connectors CN2 and CN4. The brushless DC (direct current) motor air conditioning system control circuit can perform speed regulation control on the indoor and outdoor fan motors at random to achieve a good heating effect, and match the outdoor motor fixed rotational speed control and closed loop speed regulation control at random so as to improve the development convenience of products.

The invention discloses an air-resistance type rope guide for guiding large steel rope of a boring winch. The air-resistance type rope guide is characterized in that a left rope support wheel and a right rope support wheel are sheathed on a left rope support wheel axle and a right rope support wheel axle, and sandwich a steel rope; a left piston and a right piston cannot move freely under the resistance of compressed air, so that the force applied to the left piston and the right piston by the compressed air is transferred to the left rope support wheel and the right rope support wheel to enable the rope support wheels to be arranged on a drum in sequence so as to prevent the steel rope on the drum from tangling. When the pressure providing compressed air pressure becomes larger in the field and cannot push the left piston and the right piston of the rope guider to move left and right stably along with the steel rope while winding and unwinding the steel rope below the weight of an empty runner wagon, the pressure can be lowered by adjusting a relief valve in front of an air inlet pipe of an air tank to ensure to bear against the left piston and the right piston of the rope guider to move stably while the winding and unwinding the wire rope on the drum below the weight of the empty runner wagon. In order to ensure the use safety and the service life, a gas-water separator, an atomized lubricator and the like are required below the air tank.

The invention discloses a two-step molding method for a stationary disc of an air conditioner compressor of a new energy automobile. The method is characterized by comprising the steps that after a blank is obtained by blanking and is treated, firstly, the blank is placed in a preforging mold for preforging blank making, so that the blank is molded into a workblank with a preforging outer ring of the preset height; and then, the workblank is placed into a finish forging mold, and the stationary disc is extrusion-molded through backpressure. According to the two-step molding method, the prefabricated blank obtained through preforging is provided with the preforging outer ring of a certain height, the guiding effect of the preforging outer ring is effectively utilized in the finish forging molding process, and flowing speed of metal of the outer ring is effectively increased; it is guaranteed that when molding is ended, the height and flatness of the outer ring meet requirements; and by means of the method, the service life of the mold is prolonged, part molding precision is high, and strength is high.

The invention discloses an outdoor motor control circuit of an air conditioning system of a brushless motor. The outdoor motor control circuit comprises a microcontroller U4, a rotary speed control circuit of an outdoor DC (direct current) fan motor, a fixed rotary speed and adjustable rotary speed switching circuit of an outdoor DC motor and a speed adjusting voltage cut-off circuit of the outdoor motor and a temperature detecting circuit. The rotary speed control circuit of the outdoor DC fan motor comprises a first circuit unit and a second circuit unit, wherein the first circuit unit comprises a plug connecting component CN2; the second circuit unit comprises a plug connecting component CN4; and the first circuit unit is connected with the second circuit unit through the plug connecting components CN2 and CN4. The outdoor motor control circuit disclosed by the invention has the advantages of being capable of randomly regulating and controlling the speed of the outdoor fan motor so as to obtain a better heating effect, and performing random collocation on the fixed rotary speed control and the loop-closed speed adjusting control of the outdoor motor so as to improve the convenience of product development, and the like.

The invention discloses an outdoor motor control circuit of an air conditioning system of a brushless motor. The outdoor motor control circuit comprises a microcontroller U4, a rotary speed control circuit of an outdoor DC (direct current) fan motor, a fixed rotary speed and adjustable rotary speed switching circuit of an outdoor DC motor and a speed adjusting voltage cut-off circuit of the outdoor motor and a temperature detecting circuit. The rotary speed control circuit of the outdoor DC fan motor comprises a first circuit unit and a second circuit unit, wherein the first circuit unit comprises a plug connecting component CN2; the second circuit unit comprises a plug connecting component CN4; and the first circuit unit is connected with the second circuit unit through the plug connecting components CN2 and CN4. The outdoor motor control circuit disclosed by the invention has the advantages of being capable of randomly regulating and controlling the speed of the outdoor fan motor so as to obtain a better heating effect, and performing random collocation on the fixed rotary speed control and the loop-closed speed adjusting control of the outdoor motor so as to improve the convenience of product development, and the like.

The invention discloses an outdoor unit control circuit of a variable frequency air conditioner. The outdoor unit control circuit of the variable frequency air conditioner comprises an outdoor power supply control loop, an outdoor unit power failure detection circuit, an outdoor unit charging control circuit and an outdoor environment and coiler temperature collecting circuit. The outdoor power supply control loop is used for controlling an outdoor unit to be powered on or powered off according to an external control signal. The outdoor unit power failure detection circuit is used for detecting whether a power failure of an outdoor unit power supply circuit is caused or not. The outdoor unit charging control circuit is used for charging a filter capacitor of the outdoor unit. The temperature collecting circuit is used for collecting the temperature of a coiler of an outdoor unit heat exchanger and the temperature of an outdoor environment and outputting collected analog signals. The outdoor unit control circuit of the variable frequency air conditioner has the advantages that an outdoor unit power failure can be detected, the outdoor unit can be controlled to be powered on or powered off, the stand-by time is shortened, energy is saved, and the work stability of the air conditioner is improved.

The invention discloses an air-resistance type rope guide for guiding large steel rope of a boring winch. The air-resistance type rope guide is characterized in that a left rope support wheel and a right rope support wheel are sheathed on a left rope support wheel axle and a right rope support wheel axle, and sandwich a steel rope; a left piston and a right piston cannot move freely under the resistance of compressed air, so that the force applied to the left piston and the right piston by the compressed air is transferred to the left rope support wheel and the right rope support wheel to enable the rope support wheels to be arranged on a drum in sequence so as to prevent the steel rope on the drum from tangling. When the pressure providing compressed air pressure becomes larger in the field and cannot push the left piston and the right piston of the rope guider to move left and right stably along with the steel rope while winding and unwinding the steel rope below the weight of an empty runner wagon, the pressure can be lowered by adjusting a relief valve in front of an air inlet pipe of an air tank to ensure to bear against the left piston and the right piston of the rope guider to move stably while the winding and unwinding the wire rope on the drum below the weight of the empty runner wagon. In order to ensure the use safety and the service life, a gas-water separator, an atomized lubricator and the like are required below the air tank.

The invention discloses a control method for artificial limb knee and ankle joints and relates to artificial limb knee joints. The control method includes the steps that firstly, the positions, on which Hall sensors are to be installed, on an artificial limb knee joint are determined through a test, the three Hall sensors are installed, a controller is installed in a groove in the rear cover of the artificial limb knee joint, and different gaits are judged and identified by the controller according to signal variation of the three Hall sensors; secondly, according to identification of the gaits in the first step, the controller judges different gaits according to the signal variation of the Hall sensors and controls a knee joint motor and an ankle joint motor to move up and down according to different gaits, different damping is generated according to different gaits and different step speeds, and therefore control of the gaits is achieved and coordination of the knee and the ankle is achieved. The defects that intelligent artificial limbs are not coordinate in gait and are prone to damage and energy consumption of wearers is large in the prior art are overcome.

The invention relates to the technical field for SMD chip mounting lamp production equipment, in particular to assembly equipment for an SMD chip mounting lamp. The equipment comprises a table top, wherein a stand column is welded to the outer wall of the top of the table top, a first sliding groove is formed inside the stand column, a first sliding block is slidably connected into the first sliding groove, a first ball nut is connected into the first sliding block through a bolt, a first lead screw is connected into the first ball nut through threads, a cantilever is arranged on one side of the stand column, one end of the cantilever is connected to the first sliding block through a bolt, a second sliding groove is formed inside the cantilever, a second sliding block is connected into thesecond sliding groove in a sliding mode, and a second ball nut is connected into the second sliding block through a bolt. According to the equipment, an adsorption plate is connected to a vacuum pump, so that the adsorption plate adsorbs a protective layer, the protective layer cannot be damaged in an assembling process, the defect that in the prior art, when a clamp is adopted for clamping the protective layer for assembling, the protective layer is prone to damage is overcome, and then the assembling quality is improved.