38results about How to "Flexible volume" patented technology

The invention relates to the technical field of metal and plastic welding, in particular to a plastic and metal permanent direct connection method. A plurality of connecting holes distributed in a cellular manner are ablated in the surface of a metal component by utilizing laser beams to irradiate at the surface of the metal component. A connecting surface of a plastic component is attached with the surface of the metal component, molten liquid plastic enters the connecting holes, and after the plastic entering the connecting holes is cooled, the welding connection of the metal component and the plastic component is fully realized. The welding method utilizes high-peak power, high beam quality and short-pulse laser beams to treat the metal surface and form the microstructural cellular holes in the surface, micro-hole diameter, depth and filling density can all be flexibly controlled, corresponding adjustment can be carried out according to actual requirements, and the adaptability is better.

The invention provides a tactile pressure sensor based on electrical impedance tomography and a signal acquisition method, and belongs to the field of sensor design and testing. An excitation layer ofthe sensor is prepared by using a highly conductive fabric coated with a non-polar polymer, a detection layer is prepared by using a low-conductivity fabric coated with a weakly polar polymer, and anelectrode array is arranged at the edge of the detection layer; during measuring, two electrodes are adopted, one of the two electrodes is used as a grounding point and the other is used as a measuring point. The magnitude of the applied pressure is calculated and position measuring is carried out based on electrical impedance tomography by gating the different two electrodes for measuring. The high-precision distributed sensing o tactile skin characteristics and tactile morphology of a robot can be realized, the tactile pressure sensor based on the electrical impedance tomography is simple in structure, high in reliability, low in power consumption, good in flexibility and low in price, and simplicity and accuracy of pressure magnitude and position measuring are improved.

The invention discloses a tapping massage fitness chair, relates to the technical field of daily necessities, and particularly relates to a tapping massage fitness chair with the moving and tapping massage functions. The tapping massage fitness chair comprises a chair body, a driving device and a massage device. The tapping massage fitness chair is characterized in that a hammer rod is connected to a backrest support, the hammer rod can swing relative to the bracket support by overcoming elastic resistance, a massage head is arranged on the hammer rod, a crankshaft is arranged on a cross bar of the backrest support and driven by the driving device to drive and push the hammer rod to swing, multipoint can be achieved, an acupoint is positioned accurately to conduct massage, head, neck and upper limb part massage functions are achieved, design of combining movement and massage into a whole is adopted, the result is simple, relying on electric energy does not exist, control is flexible, direction and frequency of massage can be adjusted automatically according to pedaling direction and speed of a user, a pedal assembly can be stored in a space below a seat at any time, the size is small, and the occupied space is less. In addition, driving can be achieved through a driving motor, and the effect of passive exercises is achieved.

The invention discloses a device and a method for regulating and controlling ecological water requirement in dry seasons of a riverway bankside zone under a dam. The device comprises an architecture device, a height adjustment device, a charge / discharge device, a pendulous device and a central control device. The invention also provides a method for regulating and controlling the ecological water requirement in dry seasons of the riverway bankside zone under the dam by using the device. The device is capable of running independently or running according to dispatching in combination with an upstream reservoir; the device does not increase, and even reduces the discharged volume under the dam in the dry seasons while meeting the basic requirements such as normal floodwater draw-off, shipping and upstream reservoir water supply, and therefore, effective regulation and control on the ecological water requirement of the bankside zone near the device can be realized; the water level of the riverway bankside zone under the dam can be remarkably banked up, and also the water level pulse amplitude of different areas can be flexibly controlled; and therefore, the assurance rate of the ecological water requirement in the dry seasons of the riverway bankside zone under the dam is achieved, and the uneven seasonal distribution problem of the water volume and the contradiction between the water conservancy project construction and the downstream ecological water requirement are solved.

The technical scheme of the invention is a storing and conveying unit device. The unit device is a 'grid' and a control system on an invention patent applied by an applicant in the earlier stage, wherein the invention patent is a Warenet three dimensional grid storing and conveying unit device and a control system thereof, the invention application number is 201610889061.7, and the unit device is a key device of the invention patent. The supporting face of the unit device is formed through mounting connection of flange rollers or through pavement of other materials with very small friction; supporting pillars are mounted on all the corners of the device; articles are stored on the supporting face, and the device can freely move out the stored articles from any passageway through driving equipment mounted on the top, the side face or the bottom of the device. The device comprises the supporting face, the supporting pillars of all the corners, the driving equipment mounted on the top, the side face or the bottom of the device and used for moving the articles and a matching control system. The unit device is a key component of the Warenet three dimensional grid storing and conveying unit device and the control system thereof, and the function and application which are wished to be achieved by the Warenet three dimensional grid storing and conveying unit device and the control system thereof are possible.

The invention provides a pressure-balance self-cleaning filter including an end cover, a piston, a core rod, a casing, a filter core, a piston spring and a core rod spring; the end cover is located at the top and is connected with the lower-part casing, and the piston, the piston spring, the core rod, the filter core and the core rod spring are arranged between the end cover and the casing from top to bottom successively; the top of the end cover is provided with a liquid inlet hole, and the piston is provided with a liquid inlet hole and a leakage hole; the upper part of the core rod is provided with a liquid inlet hole, the middle of the core rod is provided with a seal, the lower part of the core rod is provided with a liquid outlet hole, a plurality of core rod flushing holes are formed between the core rod liquid inlet hole and the core rod seal, and the core rod liquid inlet hole, the core rod liquid outlet hole and the core rod flushing holes communicate with each other; the middle part of the casing is provided with a blow-down hole, and the bottom of the casing is provided with a liquid outlet hole. Pressure balance can be generated with the help of a self structure and filtered media under a condition without external addition of a power device; through the inner and outer medium pressure difference of the filter core, the filter core is automatically cleaned; and moreover, the pressure-balance self-cleaning filter is flexible in size and wide in application scope.

The invention discloses an efficient oil-water separator comprising a separator upper part, a filter screen and a separator lower part, wherein the separator upper part covers on the separator lower part; the filter screen is detachably arranged at an opening of the separator lower part; an oil-water inlet is formed in the top end of the separator upper part; at least two spiral diversion screen pipes are arranged in the inner cavity of the separator upper part, an upper end opening of each diversion screen pipe is communicated with the oil-water inlet, and a lower end opening of each diversion screen pipe is formed above the filter screen; the filter screen is used for filtering oil and water which flow out after being shunted by the diversion screen pipes; and a water outlet pipe is arranged at the wall of the lower part of the separator. The efficient oil-water separator disclosed by the invention can separate oil, water and residues cleanly and clearly, is compact and flexible in size, is low in cost, and does not need other auxiliary equipment, the separated residues, oil and water are convenient to recover, and the separator is very easy to clean.

The invention relates to a heat radiation device, which is used for the heat radiation on a heating electronic element and comprises a first heat radiator and a second heat radiator arranged on the first heat radiator, wherein the first heat radiator is used for being pasted on the heating electronic element, the size of the second heat radiator is smaller than that of the first heat radiator, and the second heat radiator is detachably and thermally connected onto one side on the first heat radiator. When the heat radiation device is used for the heat radiation on the heating electronic element, the heat generated by the heating electronic element is partially radiated through the first heat radiator and is partially transmitted to the second heat radiator through the first heat radiator to be radiated through the second heat radiator, and the size and the position setting of the second heat radiator are relatively flexible, so the second heat radiator can share a part of heat radiation function for ensuring that the heat radiation device has higher heat radiation efficiency, and in addition, the interference on other electronic elements around the heating electronic element caused by the heat radiation device can also be reduced.

The invention discloses a field mouse babesia RPA molecular detection method. The field mouse babesia RPA molecular detection method comprises the following steps: designing a pair of specific primersand probes according to field mouse babesia mitochondria COX I gene sequence, wherein the nucleotide sequences of the primer pair is shown as SEQ ID NO: 2 to SEQ ID NO: 4 respectively; then extracting total DNA inside a dog blood sample to carry out recombinase combined enzymatic amplification reaction; and finally adopting a lateral flow analysis test paper strip to carry out detection on an amplification product. The method is high in sensitivity and high in specification, and field mouse babesia can be identified rapidly.

The invention discloses a center-adjustable self-elastic contact finger conducting structure, which comprises a contact finger base and a round tube-shaped contact finger body, wherein the round tube-shaped contact finger body is made of copper materials, a baffle sheet is fixed on the top surface of an upper round table of the contact finger base, an annular insulation sheet sheathed on the upper round table is paved on the annular top surface of the lower round table, and the upper round table is vertically inserted and connected into the contact finger body so that the lower end of the lower contact finger is clamped on the side wall of the upper round table and is butted and pressed on the insulation sheet. The center-adjustable self-elastic contact finger conducting structure adopts the novel self-elastic type contact finger for realizing double-side stress, the advantages of the self-elastic structure are preserved, the universality is good, the center-adjustable performance is realized, the electric field is uniform, simultaneously, the heavy current flowing capability is simultaneously realized, the integral size is not increased, and no complicated springs and contact sheets are adopted. The center-adjustable self-elastic contact finger conducting structure has the characteristics that the structure is simple, the size is small, the use is flexible, the reliability ishigh, the processing is easy, the cost is low, and the like.

The invention belongs to the field of soil pollution remediation equipment, particularly relates to a vehicle-mounted mobile soil pollution robot sampling, detecting and remediation treatment vehicle, and aims to solve the problems that existing sampling, detecting and remediation treatment equipment is heavy in size, inconvenient to flexibly adjust the use position, difficult to remedy soil at different positions and low in remediation, detecting and remediation efficiency. According to the scheme, the vehicle-mounted mobile soil pollution robot sampling, detecting and remediation treatment vehicle comprises a treatment vehicle body, a mounting hole is formed in the top of the treatment vehicle body, a sampling box is fixedly mounted in the mounting hole, a moving platform is slidably mounted in the sampling box, a rotating hole is formed in the top of the moving platform, a soil expanding screw rod is rotatably mounted in the rotating hole, and a rotating hole is formed in the top end of the soil expanding screw rod. The vehicle-mounted mobile soil pollution robot sampling, detecting and remediation treatment vehicle is reasonable in structure and convenient to operate, the size is flexible, the use position can be conveniently and flexibly adjusted, soil at different positions can be repaired, rapid soil expanding and sampling can be achieved, and the repairing, detecting and remediation efficiency is high.

The invention provides a variable combustion chamber volume mechanism of a low-speed machine, and belongs to the field of low-speed machines for ships. A piston pin of the variable combustion chambervolume mechanism is connected with a piston assembly and a cross head, and a connecting rod pin is connected with the small end of a connecting rod. The rotating centers of adjusting rockers are concentric with the axis of the piston pin, the adjusting rockers are fixed to the circumference of the connecting rod pin, and the rotating centers of the adjusting rockers are not concentric with the axis of the connecting rod pin. A first plunger assembly and a second plunger assembly are mounted on the piston assembly or the cross head or a support fixed relative to the piston assembly. According to the variable combustion chamber volume mechanism, by controlling the first plunger assembly and the second plunger assembly, the combustion chamber volume of the low-speed machine is flexible and variable; the mechanism is arranged on a reciprocating part, and the influences of vibration of the low-speed machine on the combustion chamber volume variable characteristic are lowered. The first plunger assembly and the second plunger assembly jointly drive the adjusting rockers to rotate, different combustion chamber volumes are obtained, and the purposes of low fuel consumption, low emission and high power output of the low-speed machine are achieved.

The invention relates to the technical field of rail vehicles, in particular to a micro-rail vehicle and a braking system and method thereof. The braking system comprises a hydraulic device, a brakingdevice, a motor and a control device. The control device is used for obtaining braking distance information, weight information and speed information of the micro-rail vehicle, calculating braking force needed by the micro-rail vehicle and the rotating speed and torque, corresponding to the braking force, of the motor according to the obtained braking distance information, weight information andspeed information, and sending the rotating speed and torque information obtained through calculation to the motor. The motor is used for driving the hydraulic device according to the rotating speed and torque information; and the braking device is in fluid communication with the hydraulic device and used for generating braking force through hydraulic oil provided by the hydraulic device. The braking system can meet the requirement of the micro-rail vehicle for the braking performance and has the advantages of being simple in structure, small in size, light in weight, flexible in control and short in braking response time.

The invention discloses an escalator stair cleaning device, comprising a water tank, a support, a spraying system, cleaning devices, water suction devices and fixed support legs. The water tank is used for storing a water source and cleaning liquid for the whole cleaning device, and is mounted on the support; the cleaning liquid in the water tank is sprayed to stairs of an escalator through the spraying system, then two cleaning devices arranged side by side are used for alternately cleaning the escalator while moving, and each stair can be guaranteed to be cleaned in place. The water suctionprocess is the last step in the whole cleaning process; left-right movement of the whole water suction part is implemented through a ball screw; self-rotation of a water suction cotton is implementedthrough a gear transmission device; and two water suction devices rotating in opposite directions are designed, so that sewage can be more sufficiently cleaned away, and the sewage is prevented from polluting the surrounding environment. Two fixed support legs can be placed on the ground of an escalator entrance, so that the stability of the whole device is guaranteed.

The invention relates to a remote training system based on mobile Internets and a training method. According to the system, the remote education training of custom-built training course service is provided to various users of enterprises and public institutions by utilizing a plurality of mobile Internets provided by an operating company; and the remote training system based on the mobile Internets is provided with the following devices: an integrated business application server, a resource database, a network intelligence selection and optimization terminal and a business application preposition end, wherein the integrated business application server and the resource database are used as a service end and a data source thereof, the network intelligence selection and optimization terminal is used as a network access carrier, and the business application preposition end is used as a business presentation terminal by a computer or an intelligent mobile telephone. The remote training system based on the mobile Internets is a set of system realized on the basis of various technical structures of micro-electronics, computers, wireless communication and mobile communication terminals and the like, which can be used for enabling a user to receive education training at any moment everywhere. According to the remote training system based on the mobile Internets, the education training truly gets rid of the restriction of time and spaces and the problem that trained personnel can not reasonably learn lesson contents. The remote training system based on the mobile Internets and the training method are important improvement and replenishment to a traditional remote education training realization technology and are also novel equipment and a novel method for modern remote education training, which have application prospect.

The invention discloses a tapping massage fitness chair, relates to the technical field of daily necessities, and particularly relates to a tapping massage fitness chair with the moving and tapping massage functions. The tapping massage fitness chair comprises a chair body, a driving device and a massage device. The tapping massage fitness chair is characterized in that a hammer rod is connected to a backrest support, the hammer rod can swing relative to the bracket support by overcoming elastic resistance, a massage head is arranged on the hammer rod, a crankshaft is arranged on a cross bar of the backrest support and driven by the driving device to drive and push the hammer rod to swing, multipoint can be achieved, an acupoint is positioned accurately to conduct massage, head, neck and upper limb part massage functions are achieved, design of combining movement and massage into a whole is adopted, the result is simple, relying on electric energy does not exist, control is flexible, direction and frequency of massage can be adjusted automatically according to pedaling direction and speed of a user, a pedal assembly can be stored in a space below a seat at any time, the size is small, and the occupied space is less. In addition, driving can be achieved through a driving motor, and the effect of passive exercises is achieved.

The invention discloses a novel open operation field photography illumination system, comprising a base, an illumination photography system, and a connecting plate, wherein a connecting rod is arranged on the base, a ball head is arranged at the end of the connecting rod, a U-shaped base is arranged on the bottom surface of the illumination photography system, the U-shaped base has a semicirculargroove in cross section, the ball head is matched with the semicircular groove, and the ball head is rotatably connected with the U-shaped base through the connecting plate; a light source and a camera are arranged at the front end of the illumination photography system. Before use, the ball head is inserted into the semicircular groove of the U-shaped base of the illumination photography system,and the ball head and the U-shaped base are fixed through a connecting plate, the semicircular surface of the ball head is matched with the semicircular groove, so that the arbitrary rotation of thelighting camera system can be realized, the operation operator can fully grasp the situation of the deep operation field in different operation processes, the lamp source and the camera head are juxtaposed, and the advantages of accurate exposure field, high definition, stable image and the like can be achieved under sufficient light sources.

The invention discloses a petrochemical comprehensive waste water treatment device. The petrochemical comprehensive waste water treatment device comprises a primary sedimentation tank (1), a hydrolysis acidification tank (2), an anoxic / aerobiotic tank (3), a secondary sedimentation tank (4), a micro-flocculation sand filter (5), an ozonation catalytic oxidation tank (6) and a back flush tank (9) which are sequentially connected. The invention further discloses a petrochemical comprehensive waste water treatment method using the device, and the treatment method includes the steps that petrochemical comprehensive waste water is settled through the primary sedimentation tank (1) to remove part of suspended matter, water output by the primary sedimentation tank (1) enters the hydrolysis acidification tank (2), output water enters the anoxic / aerobiotic tank (3) to be further treated, mud-water separation is carried out on output water through the secondary sedimentation tank (4), output water enters the micro-flocculation sand filter (5), and filtered output water enters the ozonation catalytic oxidation tank (6) and is subjected to further catalytic oxidation to be discharged after reaching the standard. Biochemical and physicochemical units are organically combined to form a set of overall petrochemical comprehensive waste water treatment process.

The invention discloses an early-stage matched cart for unmanned commodity packaging in a supermarket. Two ends of a front baffle are connected with side edges of inner left and right baffles, and bottom edges of the inner left and right baffles are connected with two edges of an inner bottom plate; nails and small holes for the nails to transversely enter are arranged on the side edges of steel frame plates of the inner and outer bottom plates; the inner right baffle and the outer right baffle are connected through a first sliding way arranged on the outer right baffle, the inner left baffleand the outer left baffle are connected through a second sliding way arranged on the outer left baffle, and the inner bottom plate and the outer bottom plate are connected through a third sliding wayarranged on the outer bottom plate; a radio frequency identification device is attached to an electromagnetic device, the electromagnetic device is composed of an opening and closing control device and a capacity expansion control device, and a wire and an electromagnetic coil of the opening and closing control device are distributed on the side edges of the two adjacent steel frame plates; and the wire and the electromagnetic coil of the capacity expansion control device are distributed at an adjacent position of the outer bottom plate and the inner side plate. The cart has a more flexible size, provides a convenient condition for unmanned supermarkets, and reduces queuing waiting time of customers.

The invention discloses a low-speed machine low-energy-consumption quick-responding mechanism variable in combustion chamber volume and belongs to the technical field of marine low-speed machines. A piston pin of the mechanism variable in combustion chamber volume is connected with a piston assembly and a cross head, and a connecting pin is connected with a small head of a connecting rod. The rotary center of an adjusting rocker arm is concentric with the axis of the piston pin, the adjusting rocker arm is peripherally fixed to a connecting pin, the rotary center of the adjusting rocker arm isnot concentric with the axis of the connecting pin. An adjusting valve is provided with at least four valve ports, and a pressure source is connected with the first valve port through a one-way valve. The mechanism variable in combustion chamber volume achieves that the combustion chamber volume of a low-speed machine is flexible and variable by controlling the adjusting valve. The mechanism is arranged on a reciprocating motion part, and the influence of vibration of the low-speed machine on the variable characteristic of the combustion chamber volume is reduced. An adjusting system consisting of the adjusting valve, a first one-way valve, a second one-way valve and a third one-way valve is adopted to drive a first plunger piston assembly and a second plunger piston assembly, response isquick during combustion chamber volume adjustment, and the energy consumption caused by mechanism driving is low.

The invention provides a tactile pressure sensor based on electrical impedance tomography and a signal acquisition method, and belongs to the field of sensor design and testing. An excitation layer ofthe sensor is prepared by using a highly conductive fabric coated with a non-polar polymer, a detection layer is prepared by using a low-conductivity fabric coated with a weakly polar polymer, and anelectrode array is arranged at the edge of the detection layer; during measuring, two electrodes are adopted, one of the two electrodes is used as a grounding point and the other is used as a measuring point. The magnitude of the applied pressure is calculated and position measuring is carried out based on electrical impedance tomography by gating the different two electrodes for measuring. The high-precision distributed sensing o tactile skin characteristics and tactile morphology of a robot can be realized, the tactile pressure sensor based on the electrical impedance tomography is simple in structure, high in reliability, low in power consumption, good in flexibility and low in price, and simplicity and accuracy of pressure magnitude and position measuring are improved.

The invention is suitable for the technical field of charging vehicles, and provides a battery replacement type intelligent unmanned charging vehicle which comprises a vehicle body and further comprises an identification module, a charging module and a charging module, the operation module comprises an interaction button and an interaction screen; the lighting module comprises a surrounding lighting lamp strip and a top lamp; a charging gun; a control terminal device; the battery system comprises a battery part, a transmission device, a pushing device and a fixing device. According to the battery replacement type intelligent unmanned charging vehicle, the battery in the charging vehicle can be replaced through the battery system, the efficiency is improved, and therefore it is guaranteed that services can be provided for users on time on time; the charging vehicle is flexible in size and convenient to operate, the labor cost is reduced, different numbers of batteries can be carried according to needs, the operation efficiency is improved, the anxiety of an electric vehicle owner for mileage is solved, and the charging efficiency of the electric vehicle and the service experience of a user are improved.

The invention discloses a variable-volume bellow device, a use method of the bellow device and an anesthesia machine breathing loop. The variable-volume bellow device comprises a bellow cover, a folding bag and a separation plate, wherein the bellow cover is connected onto the anesthesia machine breathing loop; the folding bag is arranged in the bellow cover; the separation plate can vertically move for regulating the volume of the bellow cover; the separation plate is arranged in the bellow cover above the folding bag; the outer peripheral edge of the separation plate is tightly pasted with the inner wall of the bellow cover. The variable-volume bellow device is used for the anesthesia machine breathing loop; the separation plate can be movably installed in the bellow cover for regulating the volume of the bellow cover; the dead cavity in the bellow device in the breathing loop is reduced or eliminated; the use quantity of anesthesia medicine and medical gas is reduced; the surgery cost is reduced; in addition, the response speed of the anesthesia effect is higher; unnecessary time caused by slow anesthetic gas concentration response in the anesthesia surgery process is reduced; wasted time caused by slow anesthesia response in the anesthesia surgery process is reduced.

The invention discloses a DC brushless motor driving controller for an electric mechanism, belonging to the technical field of electronic circuits. The invention is designed based on the analysis of the structure and the working principle of the DC brushless motor, and has the advantages in the volume, the power device is reduced from the original four power switch transistors to two, and the space volume occupancy is reduced by more than 30% compared with the existing modules; The invention has wide applicability, can change device arrangement mode according to requirement, and is more flexible in design. As that parameter of the invention are adjustable, the power adaptation can be chan by replacing fewer components accord to different power requirements in engineering application; Compared with the logic judgment circuit required by the existing H-bridge module, the logic judgment circuit design of the invention is simpler, and the number of chips used is less.

The invention discloses a method for detecting RPA of Babesia microti. First, a pair of specific primers and probes are designed according to the mitochondrial COX I gene sequence of Babesia microti. The nucleotide sequences of the primer pair are respectively SEQ ID NO : 2 to SEQ ID NO: 4, then extract the total DNA in the mouse blood sample, carry out the recombinant enzyme combination enzyme amplification reaction, and finally use the lateral flow analysis test strip to detect the amplification product. The invention has high sensitivity and strong specificity, and can quickly identify Babesia microti.

The invention discloses a preparation method for a BaTiO2-based ultra-high switch ratio RRAM (Resistive Random Access Memory). The preparation method includes steps of (1) dissolving Ba(CH3COO)2 powder in a mixed solution of glacial acetic acid and ethylene glycol monomethyl ether and stirring, and obtaining a solution A; (2) dissolving a Ti(OC3H9)4 solution in a mixed solution of ethyl alcohol and lactic acid, stirring and obtaining a solution B; (3) dissolving PVP powder in a mixed solution of A and B, performing water bath at a temperature of 85+ / -5 DEG C and stirring, and obtaining a solution C; (4) weaving BaTiO3 fibers on a clean quartz plate, and performing annealing treatment at a temperature of 1100+ / -50 DEG C. The method provided by the invention is simple in preparation processand achieves one-step processing; the required raw materials are low in price and the synthetic amount is large; the prepared RRAM is flexible in size, ultra high in resistance switch ratio and good in resistance change stability under voltage regulation.

The invention discloses a cleaning and packaging device for plastic particles, and belongs to the technical field of plastic processing, and the problem that impurities are adsorbed on the surfaces ofplastic particles due to the fact that an existing device cannot clean the plastic particles is solved; and the device is technically characterized by comprising a horizontal mounting plate and a positioning stand column, the positioning stand column is fixedly mounted below the horizontal mounting plate, two horizontal supporting transverse plates are symmetrically arranged on the positioning stand column, particle containing assemblies are mounted on the horizontal supporting transverse plates, a driving mechanism mounting base is fixedly mounted on the horizontal mounting plate, and a driving assembly is fixedly mounted on the driving mechanism mounting base. According to the cleaning and packaging device for the plastic particles plastic, the particle containing assemblies are arranged, the sizes of the particle containing assemblies are flexible and variable, so that cleaning of the plastic particles is facilitated, meanwhile, and impurities in the plastic particles are conveniently screened out; and a linkage type transmission mode is adopted, so that energy is saved, the efficiency is high, and the plastic particles are fully cleaned through the arrangement of a cleaning assembly.

The invention discloses a directional pressure pipe bending machine which comprises a pipe bending rack, a fixing guide block, a fixing clamp block, a fixing base, supports and a support base. The support bases and the fixing guide block are fixedly installed on the fixing base through the fixing clamp block, and the support base is fixed on the left side of the fixing guide block. The directional pressure pipe bending machine is characterized in that the pipe bending rack is wholly in an inverted U shape, a supporting frame is further arranged between the supports, and the inner sides of two sides of the support base are provided with supporting frame guide rails. A movable pushing piece I is connected under the supporting frame. A sliding frame is installed on the fixing guide block, a thrust box is connected onto the sliding frame, and a thrust rod is fixed at the left end of the thrust box. With low energy consumption, low construction investment, good product quality, wide-range raw material and product specification applicability and flexible and variable low-input production lot size applicability, the directional pressure pipe bending machine is suitable for the demand for machining of most of round pipes in the market.

The invention discloses a center-adjustable self-elastic contact finger conducting structure, which comprises a contact finger base and a round tube-shaped contact finger body, wherein the round tube-shaped contact finger body is made of copper materials, a baffle sheet is fixed on the top surface of an upper round table of the contact finger base, an annular insulation sheet sheathed on the upper round table is paved on the annular top surface of the lower round table, and the upper round table is vertically inserted and connected into the contact finger body so that the lower end of the lower contact finger is clamped on the side wall of the upper round table and is butted and pressed on the insulation sheet. The center-adjustable self-elastic contact finger conducting structure adopts the novel self-elastic type contact finger for realizing double-side stress, the advantages of the self-elastic structure are preserved, the universality is good, the center-adjustable performance is realized, the electric field is uniform, simultaneously, the heavy current flowing capability is simultaneously realized, the integral size is not increased, and no complicated springs and contact sheets are adopted. The center-adjustable self-elastic contact finger conducting structure has the characteristics that the structure is simple, the size is small, the use is flexible, the reliability ishigh, the processing is easy, the cost is low, and the like.