69results about How to "Simple and reliable mechanical structure" patented technology

The invention relates to a support protection mechanism of a foldable screen and a mobile terminal. The support protection mechanism comprises a middle support, side shells and side frames, wherein the middle support and the side shells are used for supporting the foldable screen when being unfolded, and the side frames are formed by separating the side shells from the middle support during folding. A containing cavity used for containing and protecting a folding area of the foldable screen is formed when the side frames on the two sides are folded; one side of each side frame is rotationallyconnected with the middle support, and the other side of each side frame is slidably connected with the corresponding side shell; a connecting rod is connected between each side shell and the middle support, and each connecting rod is rotationally connected with the middle support and the corresponding side shell. According to the support protection mechanism of the foldable screen, sliding grooves are ingeniously matched with the connecting rods, so that the overall mechanical structure is simple, reliable, high in implementability and low in manufacturing cost, and the containing cavity canbe reserved during folding to protect the flexible screen while the flexible screen is supported during unfolding.

The invention relates to a vertical type cable former with the back-twist control function. The vertical type cable former with the back-twist control function comprises a base (18), wherein a rotary table support (17) and supporting wheel devices (16) are arranged on the base; a twisting rotary table (2) is connected to the rotary table support (17) and the supporting wheel devices (16); the rotary table support is further connected with a vertical column (4); the upper end of the vertical column is connected with a wire distribution plate (10) in a matched mode. The vertical type cable former with the back-twist control function is characterized in that a set of winding tray bases (15) are evenly distributed on the twisting rotary table, each winding tray base is connected with a winding rotary table (14), each winding rotary table is connected with a winding tray (3) and a winding tray drive device (13), the vertical column is connected with supporting frames (5), and the front side of each supporting frame is connected with a back-twisting device (6). The vertical type cable former with the back-twist control function has the advantages that the load capacity of wire spool cable cores is increased, the back-twisting and twisting of the cable cores can be achieved by 100%, insufficient or over back-twisting is avoided, and the production quality of submarine cables is ensured.

The invention discloses an angle adjustment mechanism for a seat, the seat and an overhead working truck. The angle adjustment mechanism for the seat is used for angle adjustment of the seat and comprises a base (5), a guide part (605) and a drive assembly. The guide part (605) is fixed on the base (5). A body (603) of the seat is installed on the guide part (605) through a moving part (604) and moves between a first position and a second position along the guide part, and the body (603) at the first position and the body (603) at the second position form an angle. The drive assembly is connected with the body (603) of the seat and used for driving the body (603) of the seat to move along the guide part (605). The angle adjustment mechanism for the seat changes the angle of the seat through movement of the body of the seat between the first position and the second position forming an angle.

The invention relates to a supporting-rod two-blade large-diameter changing reaming tool for mineral resource exploiting and oil-gas well underground reaming and solves the problem of underground large diameter changing reaming. According to the technical scheme, a main cylinder is in threaded connection with a blade seat, and three through grooves are formed uniformly in the main cylinder peripherally. A water nozzle is in threaded connection with a central tube, and three sliding blocks penetrate the three through grooves to be mounted in an inner central tube circular groove. The middle of an outer central tube is fixedly connected with a sliding block through screws a, and the lower portion is fixedly connected with a supporting rod seat through screws b. Cutting teeth are inlaid in the outsides of the blade wings, and the blade wings are hinged to the blade wing seat through bolts. The ends of supporting rods are hinged to the supporting rod seat, and the other ends are hinged to the blade wings. By means of the tool, the largest diameter after diameter changing can be more than three times of the largest diameter before diameter changing, the mechanical structure is reliable, and a hydraulic drive mode is used, so that the tool is simple to control and is used for underground reaming.

The invention provides a non-full pipe electromagnetic flowmeter which comprises a body pipeline arranged on an on-site pipeline, an excitation coil and eccentric flanges. The inner of the body pipeline is provided with a circulation pipeline; the circulation pipeline and the two ends of the body pipeline are welded on eccentric flanges; the center of the circulation pipeline is positioned under the center of eccentric flanges with a distance ranging from 1/8 D to 1/6 D, wherein the D is the diameter of the body pipeline. The present invention achieves the advantages of reducing fluid circulation areas in non-full pipe occasions through the structures of both eccentric flanges and the circulation pipeline, positioning at the part of the body pipeline and completely converting the non-full pipe flow measurement intoto full pipe flow measurement in application, with same use method with the traditional electromagnetic flow-meters. The invention also has a simple and reliable structure, and can guarantee a high precisionoun of 0.5 grade.

The invention relates to a pressure generator with alternately changed high and low pressure for a gas pressure fatigue tester, belonging to a testing technology. The pressure generator comprises an electric motor, a coupler, a turntable, a pressure chamber, a gas source and a flow valve, wherein the electric motor is connected with the coupler, the coupler is connected with the turntable, and a series of striped grooves are uniformly distributed on the outer circumferential surface of the turntable; the pressure chamber is arranged on a connecting piece, the matched surface of the connecting piece and the turntable is uniformly provided with three exhaust ports, wherein the middle exhaust port is communicated with the pressure chamber, one of the two side exhaust ports is communicated with the atmosphere through the flow valve, and the other side exhaust port is connected with the stable gas source; the grooves on the turntable is long enough to cover two adjacent exhaust ports in the three exhaust ports on the connecting piece, and the distance between the two grooves is larger than the diameter of the exhaust ports; and a gap which is between 0.1m and 0.5 mm is reserved between the turntable and the connecting piece so as to avoid direct contact friction. The high and low pressure values and the frequency of alternately changed pressure fluctuation of the pressure generator can be regulated within a large range, and particularly, the pressure generator has very high durability and reliability.

The invention relates to a device for controlling mud sample manufacturing precise proportioning through a computer and a control method. The device comprises the upper computer, a control unit and an execution mechanism. The execution mechanism is composed of at least one execution unit. The upper computer is connected with the control unit through a serial communication interface, a stepping motor is connected with the control unit through a stepping motor control driving circuit, and weighing sensors are connected with the control unit through weighing feedback circuits. The invention further relates to a control method for the device. An instruction is sent through the upper computer, so that the control unit controls the execution units independent of one another in the execution mechanism to feed material. The needed proportion in mud sample manufacturing is controlled through the computer, the material is automatically fed into a mixing pool of a mixer, labor intensity of a tester and test preparation time can be reduced, precision of the feeding proportion can be guaranteed, and the device and the control method have good application prospects for a test related with mud sample manufacturing in geotechnical engineering.

The invention discloses a badminton ball serving robot. The robot comprises a machine base and a serving tube arranged on the machine base; one end of the serving tube is closed, and the outer peripheral wall of the serving tube is provided with a sliding groove which is communicated with an inner cavity of the serving tube and extends in the axial direction of the serving tube; the serving tube is provided with a rack sliding in the axial direction of the serving tube, the rack is fixedly provided with a stirring claw which penetrates through the sliding groove and is located in the inner cavity of the serving tube, the side, facing the opening end of the serving tube, of the stirring claw is fixedly provided with a racket located in the inner cavity of the serving tube, and the side, where the stirring claw is back to the racket, in the inner cavity of the serving tube is provided with a compression spring; the serving tube is fixedly provided with a first motor, and an incomplete gear which drives the rack to move a certain stroke and then is separated from the rack is arranged between the first motor and the rack. The robot has the following advantages that the mechanical structure is simple and reliable, the cost is low, and the robot is suitable for being used by beginners.

The invention discloses an integrated note-coin separating and classifying sorter. The sorter comprises a frame, a currency inlet funnel inclined downwards, a coin classifying sorting system and a note arrangement system, wherein the coin classifying sorting system and the note arrangement system are arranged under the currency inlet funnel, and the currency inlet funnel, the coin classifying sorting system and the note arrangement system are all mounted on the frame; the coin classifying sorting system is provided with a deceleration slideway and a coin collecting and counting box successively from top to bottom, and the deceleration slideway inclines downwardly along the direction far from the coin collecting and counting box; and the note arrangement system is provided with a negative pressure note separating mechanism, a negative pressure note flattening mechanism and a note collecting box successively from the end close to the currency inlet funnel to the other end, and the note arrangement system is further provided with a note counter. Through the above structure, coins can be separated from notes, the coins of different nominal values can be collected in a classified manner, the folio notes can be flattened and counted, the integrated degree is high, the mechanical structure is simple and reliable, the sorting speed and the efficiency are high, and the practicality and population values are extremely high.

The invention discloses a vertical type disposable raincoat vending machine. The machine comprises a machine box, storage chambers, pushing mechanisms, a material recovery bucket and a control system,the machine box is made from metal sheet materials and is of a vertical type cuboid structure, and the storage chambers, the pushing mechanisms, the material recovery bucket and the control system are arranged inside the machine box; materials are stacked in a material feeding chamber which feeds materials downward under the gravity effect, the pushing mechanisms comprise slider-crank mechanismsand self-springback material stopping anti-theft mechanisms which are driven by the same plane cam, the slider-crank mechanisms are used for pushing materials, and the self-springback material stopping anti-theft mechanisms are used for stopping the materials and preventing theft during the spare time; the whole pushing mechanisms are arranged below the material feeding chamber, two pairs of storage chambers and two pairs of pushing mechanisms are symmetrically arranged left and right in the machine box to achieve the selling of disposable raincoats of two types, and a the material recovery bucket is arranged at the lower portion inside the machine box and is used for recovering the materials; the control system is used for controlling the whole vending machine to operate and is in communication with a back-end server to achieve remote monitoring, and a purchaser can buy the disposable raincoat by scanning the two-dimensional code on the vending machine or using the APP in the phone.

The invention relates to a self-protection wind-driven water lifting system with accelerating vanes. The self-protection wind-driven water lifting system comprises a water lifting mechanism directly driven by a wind power transmission mechanism and is characterized in that the cross sections of the vanes adopt NACA series wing sections, the streamline accelerating vanes are started at a low wind speed and output high torques, the vanes comprise low-speed vane tips and large-torsion vane roots and are divided into twenty cross sections from the vane roots to the vane tips for setting mounting angles, and the cross sections are in smooth transition with each other; a water outlet of a water pump of the water lifting mechanism is connected with a water-out pressure regulating cylinder of a hydraulic speed regulating mechanism. The problems of the traditional wind-driven water lifting system, such as large vane number and low wind energy utilizing rate are solved. The hydraulic speed regulating mechanism is driven to act through the skillful utilization of the water pressure of the water outlet of the water pump under large wind power, the wind power transmission mechanism is controlled to timely respond to yaw, and the purpose of automatically protecting system units is achieved. The self-protection wind-driven water lifting system is suitable for the farmland irrigating application of remote areas lack of electricity resources.

The invention relates to a roller-type drilling tool surface stabilizer for preventing torsion deviation of a drill stem in drilling engineering of the oil and gas industry. The problems that the drill stem is torsionally deformed during the drilling process and the drilling tool surface is difficult to stabilize are solved. According to the technical scheme, rollers are installed in grooves in the upper parts of pistons, wheel shafts penetrate through holes in the centers of the rollers and through holes in the upper parts of the pistons, and piston springs are mounted on convex steps at thelower ends of the pistons; the pistons and the piston springs are arranged in stepped holes of centralizer wings of an outer casing, and the piston springs are in a compressed state; a liner tube is arranged in an inner cavity of the outer casing, and a main spring is mounted on the convex inner edge of the lower end of the liner tube; the upper end of the outer casing is in screwed connection with the lower end of an upper joint, and the lower end of the outer casing is in screwed connection with the upper end of a lower joint; and a central tube, the liner tube, the outer casing and the pistons form closed space filled with hydraulic oil. The roller-type drilling tool surface stabilizer can effectively stabilize the drilling tool surface, the deviation of the drilling tool surface due totorsion deformation of the drill stem is prevented, and the drilling quality of the rotary guiding technology is improved.

The invention provides a membrane type gas meter vertical shaft feeding device. The feeding device comprises a base plate provided with stand columns, and the upper ends of the stand columns are provided with a top plate; a discharging base and a vertical shaft compression mechanism are arranged above the top plate; a discharging pipe is arranged on the discharging base; a linear guideway and an air cylinder are arranged below the top plate, a sliding block is arranged on the linear guideway and fixed to the lower surface of the top plate, a connecting block is arranged at one end, provided with a guide rail, of the linear guideway, the fixed end of the air cylinder is fixed to the top plate, and the stretchable end of the air cylinder is connected with the guide rail and drives the guide rail to slide relative to the sliding block; a pneumatic sliding table is installed on a vertical face of the connecting block, a material receiving block is arranged on a sliding part of the pneumatic sliding table, and a material receiving hole is formed in the material receiving block; and a first material passing hole and a transverse groove communicated with the first discharging hole are formed in the discharging base, and the transverse groove is matched with a pressing head arranged on the vertical shaft compression mechanism. By means of the feeding device, a reliable mechanical structure is used, manpower can be replaced, and rapid and accurate feeding of a vertical shaft is completed.

The invention provides a fruit peeler capable of cleaning and removing surface fragments of fruits and helps process the fruits on a full-automatic line. The fruit peeler comprises a feed passage, a peeling roller and a discharge passage and is characterized in that the discharge passage is connected with the upper end of a cleaning duct through a ball bearing, the inner wall of the discharge passage is connected with a spray pipe that faces the cleaning duct, the lower end of the cleaning duct is connected with an outgoing passage through a ball bearing, the bottom of the outgoing passage iscommunicated with a separation passage, the outer wall of the cleaning duct is connected with a motor through a transmission belt, the inner wall of the cleaning duct is provided with a brush, the separation passage is inclined and is composed of a plurality of connection rods in length direction, and a hollow portion allowing cleaning fragments to drop is formed between every two connection rods.

The invention relates to the field of security and protection, in particular to a rope slow descending device. The rope slow descending device comprises a base body, a left movable portion, a right movable portion, a force bearing rope and elastic bodies; the base body is of a V-shaped structure and comprises a left sliding groove and a right sliding groove which are mutually symmetric with the V-shaped center line of the base body as the axis of symmetry; guide slide blocks are arranged on the left movable portion and the right movable portion; the guide slide block of the left movable portion is installed in the left sliding groove of the base body and is connected with the base body through the corresponding elastic body; and the guide slide block of the right movable portion is installed in the right sliding groove of the base body and connected with the base body through the corresponding elastic body. Operation is logic and simple, the mechanical structure is reliable, stress concentration of a slowly descending rope is not likely to be generated, the highest descending speed can be restrained by the mechanical structure features, glide being close to a free falling body doesnot occur, and the rope slow descending device is a reliable high-rise escape device.

The invention discloses an automatic clamping and automatic clamping loosening threading machine and a work method thereof. The automatic clamping and automatic clamping loosening threading machine comprises a rack, a control device, a motor, a power speed reduction transmission system, an automatic chuck system, a chuck shaft braking system and a sliding frame guide rail, wherein the control device, the motor, the power speed reduction transmission system, the automatic chuck system, the chuck shaft braking system and the sliding frame guide rail are installed on the rack. The motor and the chuck shaft braking system are connected with the control device. The control device controls the motor and the chuck shaft braking system. Power of the motor is transmitted to a chuck through the power speed reduction transmission system. The chuck completes the process of automatic clamping after the starting of the threading machine and the process of automatic clamping loosening after the shutdown of the threading machine under the cooperation of the chuck shaft braking system. By means of the automatic clamping and automatic clamping loosening threading machine and the work method thereof, power is completely provided by the main motor, power maintenance is not needed during clamping, power transmission is totally completed through mechanical transmission, and therefore the production cost is reduced; in addition, during use, the motor does not need to stop in the clamping and machining processes, and one-time operation on the processes of clamping, machining, clamping loosening and the like in the whole process is supported; and the technical nodes of the threading machine on automatic application are avoided.

The invention provides a differential type spherical surface expanding mechanism and belongs to the technical field of spherical surface expanding detection. A first servo motor and a second servo motor are fixed by a first servo motor fixing support and a second servo motor fixing support respectively; a first coupler and a second coupler are connected with the first and second servo motors and adriving axle; the driving axle is connected with a driving wheel; a first bearing end cover is used for fixing first paired angular contact ball bearings; the first paired angular contact ball bearings support the driving axle; a machine body supports the whole mechanism, and the driving wheel and a differential wheel cooperate to drive a detected ball to perform rotary motion and yaw motion; a baffle limits the position of the detected ball; second paired angular contact ball bearings support a differential axle; a second bearing end cover is used for fixing second paired angular contact ball bearings; the differential axle is connected with the differential wheel. The mechanism has clear working principles, is simple and reliable in mechanical structure, controllable in operation process, adaptable to expanding motion of spherical surfaces with different diameters, low in processing and maintenance cost and convenient to replace.

The large-angle compensation heavy-load suspension spherical joint comprises an upper shell and a spherical lower joint which are coaxially arranged together in a sleeved mode, the upper shell is connected to a mining operation platform in a suspension mode, and the spherical lower joint is connected with an underwater hard pipe. And the underwater system and the mining operation platform are connected into a whole. As a flexible connecting device, the large-angle compensation heavy-load suspension spherical joint can compensate the angle deviation generated by underwater equipment in ocean current during mining operation or danger avoiding, relieve the bending moment of a mining operation platform and the underwater equipment, prevent an underwater hard pipe from being bent and damaged, and guarantee the safety of the mining operation equipment.