31results about How to "Reliable reset" patented technology

The invention discloses a flow meter detection device based on a volumetric method, and belongs to the technical field of meter detection. The measuring mechanism comprises an oil inlet pipe, a flow meter body, an inflow pipe, measuring tanks, an overflow mechanism, an outer sleeve, a piston disc, an extending sleeve, a follow-up rod, a pressing block, a lateral sleeve, a transverse rod and a fixing mechanism, one end of the oil inlet pipe is connected to the oil tank, the other end of the oil inlet pipe is connected to the inflow pipe, the inflow pipe is connected to the side walls of the two measuring tanks, and the overflow mechanism is connected to the outer sleeve. The flow meter body is installed on an oil inlet pipe, the overflow mechanism is installed on an oil tank, the outer sleeve is coaxially installed on a measuring tank, the influence of gas pressure is avoided through the design of an air inlet hole, convenient manual control is provided through the combination of a follow-up rod and a pressing block, and the multi-stage positioning function is achieved through the cooperation of a lateral sleeve and a transverse rod. By means of the multi-structural design, the measurement accuracy and repeatability of flow measurement are remarkably improved.

The invention discloses a check valve special for a centrifugal water pump and an implementation method, and aims to solve the problems of large water flow resistance, unstable sealing performance, high maintenance cost and the like of a check valve in a super-power centrifugal water pump in the prior art. The check valve comprises a valve body outer pipe, a filter screen, a valve element assembly, an overturning reset assembly and a moving assembly. The valve element assembly is in sliding connection with the inner wall of the valve body outer pipe through a moving assembly and is connected with the valve body outer pipe and the overturning valve element plate through an overturning reset assembly. According to the check valve, the overturning valve core plate is overturned to a vertical state through water flow suction of the centrifugal water pump, so that the valve core is opened, water flow resistance can be reduced by overturning the vertical state of the valve core plate, and water pump efficiency is improved; when the water pump stops, the valve element plate resets under the action of the spring and makes close contact with the sealing rubber gasket, and effective non-return is achieved. The check valve has the technical effects of reducing the water flow resistance, improving the sealing performance, enhancing the durability and being easy to maintain, and is suitable for various super-power centrifugal water pumps.

The utility model relates to the technical field of stamping die switching mechanisms, in particular to a forced rollback switching mechanism which comprises an air cylinder, a driving block, a sliding block and a back-off mechanism, the driving block is connected with a movable part of the air cylinder, and the driving block reciprocates in the horizontal direction under the action of the air cylinder; the back-off mechanism is arranged in the vertical direction, the bottom of the back-off mechanism is installed on the sliding block, and the top of the back-off mechanism extends upwards into the driving block. The sliding block is located below the driving block and connected with the driving block in a sliding mode, and the sliding block reciprocates in the vertical direction under the action of the driving block and the back-off mechanism. The utility model has the advantages of reliable reset and convenient installation. The forced reset mechanism avoids the fatigue problem of a traditional spring, and the reset success rate is high; and the reversing mechanism and the nitrogen spring provide double guarantees, so that the sliding block is prevented from falling off and the return stroke of the sliding block is assisted. The sliding block resetting mechanism can solve the technical problems of low resetting reliability and insufficient stability of the sliding block of a traditional switching mechanism.

The invention discloses a manual and automatic integrated emergency driving device for an electric lifting window motor, which comprises a shell, an emergency driving transmission mechanism, a brake unlocking conductive mechanism and an elastic resetting mechanism, and is characterized in that the emergency driving transmission mechanism can realize emergency torque transmission and is completely separated from a motor shaft after resetting; the brake unlocking electric conduction mechanism is linked with the emergency driving transmission mechanism, a driving shaft is pushed to synchronously complete brake unlocking loop conduction and torque butt joint, and the elastic reset mechanism realizes reliable reset of the driving and electric conduction mechanism; aiming at the problem that a standby power supply cannot drive a motor when an electric control system breaks down, synchronous actions of mechanical emergency driving and brake unlocking are realized, and a window body can be quickly opened and closed; meanwhile, the problems of abrasion and damage caused by frequent connection of an existing manual mechanism and a motor shaft are solved, and the service life of the motor and the manual mechanism is prolonged.

This utility model provides a sheet metal supporting device for molds, comprising a support plate, a support plate connecting seat, a counterweight, and a magnetic attraction assembly. The support plate connecting seat is vertically fixed on a punch seat. The support plate is rotatably connected to the support plate connecting seat. The support plate has a supporting surface that can extend horizontally from the front side of the support plate connecting seat or retract as the support plate rotates. The counterweight is fixedly connected to the end of the support plate away from the supporting surface and is located on the rear side of the support plate connecting seat. The counterweight has an abutment surface that can contact the rear side of the support plate connecting seat. The abutment surface has a first groove recessed into the counterweight, and the bottom of the first groove has a threaded hole penetrating the counterweight. The magnetic attraction assembly includes a magnet and an adjusting screw. The magnet is movably disposed in the first groove, and the adjusting screw is threadedly connected to the threaded hole, with one end fixedly connected to the magnet. This utility model overcomes the problems of unreliable reset, inconvenient adjustment, and poor versatility of traditional mold sheet metal supporting devices.

The invention provides a lock cylinder of an addition lock and an opening method. The lock cylinder comprises a lock cylinder body, a rotary lock cylinder installed in the lock cylinder body, a key inserted into the rotary lock cylinder, a pressing block assembly and a plurality of addition assemblies, wherein the pressing block assembly and the addition assemblies are installed in the lock cylinder body and abut against the key. Through the double locking mechanism of the pressing block assembly and the addition assembly, the technical unlocking difficulty of the lock cylinder is increased, the design of addition beads and elastic blocks in the addition assembly enables the movement action of the lock cylinder part to be accurate, and the design of pressing blocks and rolling bodies in the pressing block assembly enables the action to be flexible and friction to be reduced when a key is inserted. Correct positions of components in the lock cylinder are ensured, and the design of a side column and a brake bolt in the addition assembly achieves the purpose of controlling the mechanical structure aspect of the second unlocking condition.

The present invention discloses a flow meter detection device based on a volumetric method in the field of meter detection technology, comprising an oil tank, wherein a measuring mechanism is arranged on the oil tank, and the measuring mechanism comprises an oil inlet pipe, a flow meter body, an inflow pipe, a measuring tank, an overflow mechanism, an external sleeve, a piston disc, an extension sleeve, a follower rod, a pressure block, a lateral sleeve, a transverse rod and a fixing mechanism, wherein one end of the oil inlet pipe is connected to the oil tank, and the other end of the oil inlet pipe is connected to the inflow pipe, and the inflow pipe is connected to the side walls of two measuring tanks, the flow meter body is mounted on the oil inlet pipe, the overflow mechanism is mounted on the oil tank, and the external sleeve is coaxially mounted on the measuring tank, the influence of gas pressure is avoided by the design of the air inlet hole, the combination of the follower rod and the pressure block provides convenient manual control, and the cooperation of the lateral sleeve and the transverse rod realizes a multi-level positioning function, and this multiple structural design significantly improves the measurement accuracy and repeatability of flow metering.

The utility model discloses a water reducing agent concentration detects with sampling device, including empty cylinder, the empty cylinder outer surface fixedly connected with the connecting box, and the empty cylinder top insertion has the piston rod, and the connecting box is away from the piston rod one side and is equipped with the window, and the piston rod bottom fixedly connected with the piston main part, and the connecting box inside slide connection has the ration sampling mechanism, and the connecting box one side fixedly connected with the check valve mechanism, and the ration sampling mechanism includes the extrusion board, rubber block, spring no.

The present invention discloses a chip resetting method and device for ultrasonic equipment and an ultrasonic system. The method comprises: a reset control chip of the ultrasonic equipment performs power-on reset according to an acquired power-on reset signal; after the reset is completed, a reset instruction of a target chip is acquired; wherein the target chip comprises a main control chip in the ultrasonic equipment, and the main control chip comprises functional modules that are reset by different reset modes; according to the reset instruction, a reset sequence is generated according to the reset mode corresponding to each functional module, and the main control chip is controlled to perform a reset operation according to the reset sequence sequence; the present invention adopts a reset control chip to sequentially control the main control chip to reset according to the reset mode of each functional module in the main control chip, thereby ensuring the reliable reset of each functional module in the main control chip and avoiding the situation where the reset fan-out of the main control chip is large; and the independent reset control chip is set, so that the design of chip reset can be flexible.

The invention discloses an aperture-variable fungus cake punching device. The aperture-variable fungus cake punching device is characterized in that a partition plate is arranged on the inner side of a holding tube; the core shaft and the punching pipes are arranged in the holding pipe, and the outer side of the core shaft is sequentially and tightly sleeved with the multiple punching pipes in a sliding mode; one end of the mandrel and one ends of the multiple punching pipes can be aligned at the same time, the other end of the mandrel and the other ends of the multiple punching pipes are fixed to the multiple connecting rods respectively, the connecting rods are fixed to the guide rod, and the guide rod is fixed to the pressing block; a through hole is formed in the partition plate, a guide rod penetrates through the through hole, the guide rod is sleeved with a spring, and the two ends of the spring abut against the pressing block and the partition plate respectively; one end wall of the mandrel and one end wall of the punching pipe can be located outside the holding pipe. The punching device can be used for punching holes with various hole diameters in the mushroom cakes; different pressing blocks are correspondingly connected with the punching pipes with different punching hole diameters, an operator pushes the pressing blocks to enable the corresponding punching pipes to extend out of the holding pipe, so that subsequent punching operation is facilitated, and meanwhile, the punching pipes extending out of the holding pipe can be reset through the springs.

The utility model discloses a kind of packing device for sewing thread production, including bottom plate, packing assembly is arranged on the bottom plate, the packing assembly includes operation table and conveyer belt, the operation table is installed on bottom plate, the conveyer belt is set on operation table, and the operation table is wound with packaging tape, the side of the operation table is equipped with placing rack, the placing rack is equipped with mounting seat, the mounting seat is equipped with fastening assembly, the fastening assembly includes rotating seat and mounting rod, the rotating seat is rotatably connected on mounting seat, the mounting rod is slidably connected on rotating seat and mounting seat, mounting seat is placed with placing rod, to solve the technical problem of low efficiency and inconvenient operation mentioned in the background art in the existing sewing thread production packing device technical field.

The utility model discloses a chemical agent diluting device, include: main pipe, the one end of main pipe is closed and is set, branch pipe, its fixed setting is at the outside of main pipe, the other end fixed setting of branch pipe has venturi, valve body, its fixed setting is on the main pipe, the valve body has the inner chamber in, the main pipe inside is set up and is connected with the intercommunication hole of inner chamber, the liquid inlet of branch pipe is through with the inner chamber and is set, valve core, the upper end of valve core is used to the liquid inlet of branch pipe is closed, iron core, the iron core is up and down swing setting in valve body, the upper end of iron core and the lower end of valve core are in contact and set, movable cylinder, its fixed setting is at the outside of valve body, the outer ring of movable cylinder is up and down swing and is set with magnet, pass magnet and open and close the valve, need manpower to keep when opening the valve, and magnet will release the magnetic attraction connection of iron core after losing external force, thereby automatic closing the valve, avoid the situation of forgetting to close the valve.

The blowing and sucking machine comprises a machine body, one side of the machine body is connected with a speed adjusting device, the speed adjusting device comprises a control sleeve, an adaptive rod, a connecting pipe, adaptive holes, an adaptive pipe, a matching rod, a matching sleeve and a fixing pipe, the adaptive holes are formed in the outer wall of the adaptive pipe, the matching rod is connected to one end of the adaptive rod, and the matching sleeve is connected to the other end of the adaptive rod. A locking mechanism is arranged on the outer side of the connecting pipe and comprises a sliding sleeve, a receding groove, a movable block, an extrusion spring, a guide rod, a guide hole, a connecting plate, a transverse plate, a limiting block, a linkage block, a connecting block, a movable plate and a connecting spring, the receding groove is formed in the movable plate, and the guide rod is sleeved with the extrusion spring; the guide rod is connected to one side of the movable block, the guide hole is formed in the connecting block, the transverse plate is installed on one side of the connecting plate, the limiting block is arranged on the outer side of the connecting pipe, and the connecting spring is connected with the two adjacent linkage blocks. The blowing and sucking machine solves the problem that a traditional blowing and sucking machine is unstable in air speed fixing and speed adjusting structure.

The invention provides a driving system capable of resetting a self-adaptive threshold value, and relates to the field of driving systems, and the driving system capable of resetting the self-adaptive threshold value comprises an MCU, an input voltage reduction module, an input voltage detection module, an LDO voltage reduction module, a key access module, a speed regulation MOS bridge module, a current detection module, a motor, and a power supply. According to the method for detecting the current self-adaptive threshold value, due to the fact that the running current changes under the condition that the resistance is different in the starting, balance maintaining and running processes of the motor, interference in the running process of a control logic combination algorithm is eliminated, and the current during reset running of the motor is detected to be continuously weighted; and meanwhile, the running speed is detected to confirm whether a steady state is entered, a current reference value and a dynamic threshold value are calculated, the current variation is monitored in real time, and reliable reset can be ensured.

The utility model discloses a more space -saving self -made inclined wedge, apply in cold stamping foundry mould field, including upper die, lower die and inclined wedge mechanism, the inclined wedge mechanism sets up between upper die and lower die, wherein the inclined wedge mechanism includes upper die fixed base, side guide plate, sliding block, sliding slot, base, dovetail block, fixed block and dovetail groove, and upper die fixed base is connected with upper die, adopts the movement and force of steel piece transmission press, after side guide plate and apron change integrative, both play the guiding effect to sliding block, limit sliding block movement direction, ensure that sliding block slides along the length direction of side guide plate, and also pass through self -structure constraint, reduce inclined wedge overall width, save installation space, and sliding block is under the action of upper die fixed base, and slides along side guide plate, realizes the stamping action of lateral, and dovetail block and dovetail groove cooperate and play the auxiliary guiding and positioning effect to sliding block, utilize the guiding accuracy of V type structure, promote the stability of sliding block movement, reduce the deviation in the sliding process of sliding block.

The embodiment of the application provides a stamping die structure, relates to the technical field of a die, and comprises an upper die, a lower die and a mounting seat. The lower die is rotationally connected with the mounting seat through a rotating shaft, a plurality of forming grooves are arranged on the lower die and are uniformly distributed in the circumferential direction of the rotating shaft, and the mounting seat is provided with a stepping motor for driving the lower die to rotate. The mounting seat is provided with an adjusting device, which comprises an adjusting rod, a driving mechanism slidingly arranged on the upper die, a first driving rod, a second driving rod arranged on the lower die, a third driving rod arranged on the mounting seat and a return spring. When the upper die descends, the first driving rod drives the second driving rod and the third driving rod in sequence, so that the adjusting rod is inserted into a corresponding forming groove and rises to a predetermined height to limit the forming depth. The application realizes accurate adjustment of the forming depth, has a compact structure and is high in automation degree.

The utility model discloses a telescopic touch screen writing control pen which comprises a pen body, and a hollow containing cavity is formed in the pen body and used for installing a control mainboard and a battery. The telescopic pen point is installed on the pen body, the head of the pen point is a writing contact part, and a signal triggering assembly is installed in the pen point and the pen body; when the writing contact part of the pen point is pressed, the signal triggering assembly is opened to obtain communication with external equipment; when the pressure applied to the signal triggering assembly is released, the pen point is reset through an elastic reset piece arranged in the pen body, and communication between the signal triggering assembly and the external equipment is disconnected. By means of the design of the telescopic pen point, the false triggering phenomenon is effectively avoided, meanwhile, the writing and drawing accuracy is improved, the slight retraction action of the pen point when the pen point makes contact with a screen only activates communication during actual contact, and therefore the accuracy and continuity of operation are guaranteed.

The application relates to the technical field of building construction, and particularly discloses a construction device for an anti-overturning structure of a construction template of a retaining wall, which comprises a template, a supporting mechanism hinged to the template, an adjusting mechanism arranged on the supporting mechanism, and a driving mechanism arranged on the adjusting mechanism; the supporting mechanism comprises a bottom plate and a hinge column hinged to the bottom plate, the hinge column is further hinged to the template and can slide along the height direction of the template; when the template is inclined, the driving mechanism drives the mounting assembly to move to the template direction through the sliding assembly; in the moving process, the limiting assembly pushes the inclined block to make the anti-skid plate closely attached to the clamping assembly, so that the friction force is increased to overcome the lateral pressure, and then the inclined template is pushed back to the vertical state through the clamping assembly and the hinge column, so that the template angle can be timely adjusted.

The invention provides a nest plate correcting and positioning mechanism. The nest plate correcting and positioning mechanism comprises a bottom plate, a linear cam, a pressing mechanism and a nest plate positioning plate. The linear cam and the nest plate positioning plate are arranged on the bottom plate, and the pressing mechanism comprises a pressing block in transmission connection with the linear cam. The four pressing mechanisms are located at the four corners of the nest plate correspondingly and symmetrically arranged on the periphery of the nest plate positioning plate. The linear cam horizontally moves to drive the pressing block to ascend and descend, so that the nest plate placed on the nest plate positioning plate is pressed or released. The pressing mechanisms are driven by the linear cams to achieve accurate positioning and effective correction of the nest plate, the problem that needle cylinders are difficult to take and place due to deformation of the nest plate is solved, meanwhile, uniform distribution of pressing force is ensured through symmetrical arrangement of the multiple sets of pressing mechanisms, and the success rate of the downstream needle cylinder taking procedure is increased.

The invention relates to the technical field of fixed-wing unmanned aerial vehicle manufacturing quality detection, and provides a method and a device for testing strength characteristics of wings of a fixed-wing unmanned aerial vehicle under mechanical stress, the device comprises a grid frame provided with a plurality of vertical through holes, an air bag system is arranged around the through holes, and deformation measurement composition rods with mark points at the top ends are arranged in the through holes in a penetrating manner. A foldable supporting ring is arranged on the edge of the bottom of the grid frame, and a flexible conductive fiber network made of a graphene / silver nanowire composite material is arranged on the supporting ring and used for precise measurement of a wing root area. The test method comprises the following steps: fixing a to-be-tested wing on the support frame body; carrying out graded loading on the wing, obtaining wing body area deformation data through a deformation measurement composition rod, and obtaining wing root area deformation data through a conductive fiber network; performing fusion processing on the angle data, the displacement value and the three-dimensional deformation data; and measuring the wing on the other side by adopting the same parameters, and performing symmetry matching screening.

The flushing switching valve comprises a valve body, the valve body is provided with a switching cavity and two water outlets communicated with the switching cavity, a switching piece capable of rotating around the axial direction of the switching piece to open and close the water outlets is arranged in the switching cavity, and one water outlet is provided with a suction inlet located outside the switching cavity; the valve body is further provided with a fluid channel and a transmission cavity, the transmission cavity is formed in the axial side of the switching cavity, and a transmission piece rotating coaxially with the switching piece is arranged in the transmission cavity. The fluid channel is communicated with the suction inlet, a movable sliding piece is arranged in the fluid channel, the sliding piece and the transmission piece are oppositely arranged, and the transmission piece can be matched with the sliding piece in an abutting and pushing mode when rotating to a preset position along with the switching piece; when the switching piece rotates to open the water outlet with the suction inlet and drives the transmission piece to abut against the sliding piece, the sliding piece moves to open the fluid channel, and fluid is sucked into the suction inlet through the fluid channel. The on-off of the fluid channel is controlled through mechanical linkage, the washing effect and the bubbling function of the brush ring are both considered, the structure is simplified, and the cost is reduced.

This invention relates to the field of aero-engine manufacturing technology and discloses a hydraulic lateral pressure plate for processing aero-engine parts. The plate includes a base, on which a hydraulic feeding mechanism and a clamping mechanism are mounted. The hydraulic feeding mechanism includes a sliding cavity on one side of the base, in which a piston slides. A telescopic spring is provided between the piston and the sliding cavity. A fixing block is provided at the opening of the sliding cavity, through which the piston passes and slides in a sealing fit. A first oil passage is provided inside the base and is connected to the sliding cavity. The clamping mechanism includes a sealing cavity on the base, in which a clamping plug slides. A second oil passage is provided inside the base and is connected to the sealing cavity. A clamping plate is fixed on the base. The middle part of the piston is connected to the lateral pressure plate. Both ends of the lateral pressure plate extend between the clamping plug and the clamping plate for clamping and positioning. This invention solves the problems of low positioning accuracy, unstable clamping, mutual interference between feeding and clamping, and inconvenient resetting associated with traditional lateral pressure plates.

The utility model discloses an economic and practical elevator button, including character piece, transmission part, outer frame, first spring, second spring and circuit board, the top of transmission part is equipped with first placement groove and the character piece is installed in first placement groove, the bottom of transmission part is equipped with first spring mounting groove, second spring mounting groove and a plurality of towards the away from the top direction's clamping piece, the clamping piece is equipped with the clamping end, the outer frame surrounds transmission part's side portion with the inner wall of outer frame is equipped with first fixed end, second fixed end, third fixed end, fourth fixed end and a plurality of clamping blocks. The utility model discloses an economic and practical elevator button, its simple structure, reset reliable, low cost and strong durability, to solve the problem of " high cost, low reliability " of existing button, satisfy the demand of economic and practical accessory of elevator industry.

This utility model relates to the field of telescopic sleeves, specifically to a telescopic sleeve length adjustment device. It includes a telescopic sleeve assembly consisting of an outer tube and at least one inner tube. The innermost inner tube has no limiting hole, while at least the second innermost inner tube of the outer sleeve has at least one limiting hole. A control area is provided at the bottom of the inner tube closest to the limiting hole, nested within the sleeve with the limiting hole. A limiting component and a reversing component are provided within this area. The limiting component includes a limiting tongue, a limiting shaft, and a limiting torsion spring, causing the limiting tongue to tend to extend outwards and engage with the limiting hole. The reversing component includes a reversing spring, a reversing shaft, and a reversing torsion spring. The first end of the reversing spring acts on the tail of the limiting tongue to maintain or release the retracted state of the limiting tongue. This device achieves automated telescopic extension and retraction of multiple sleeve sections, solving the problems of low efficiency and inconvenience in existing multi-section telescopic sleeves that require individual operation of each section.

The utility model relates to an NFC (Near Field Communication) electronic padlock with a mechanical unlocking function, which aims at solving the technical problems that the existing similar products are low in driving resistance, so that the reset reliability is low, and a mechanical unlocking structure design is lacked for standby unlocking. The electronic padlock is characterized in that an execution piece of the electronic padlock is a rack spring bolt sliding block, a rack groove is formed in one side of the rack spring bolt sliding block, a protruding spring bolt head is arranged at one end of the rack spring bolt sliding block, a motor shaft of a motor is connected with a motor gear through a speed change gear box assembly, and the motor gear is meshed with the rack groove of the rack spring bolt sliding block. A lock tongue head of the rack lock tongue sliding block is inserted into a lock groove in one side of the fixed end of the lock hook in the lock shell; meanwhile, the rack spring bolt sliding block is provided with a cam groove, a transmission shaft and a mechanical unlocking head are arranged at the position of the mechanical lock cylinder in the base, a protruding cam shaft is arranged on one side of the top end face of the mechanical unlocking head, the cam shaft of the mechanical unlocking head swings in the cam groove of the rack spring bolt sliding block, and a key hole of the mechanical lock cylinder is exposed out of a through hole in the other end of the bottom cover.

A combined switch cabinet interlocking mechanism disclosed by the present invention comprises a wire inlet cabinet and at least two wire outlet cabinets, the wire inlet cabinet and the wire outlet cabinets are respectively provided with a closing operation hole and an opening operation hole, and a combined lock is arranged between the wire inlet cabinet and each operation cabinet. The combined lock comprises two program locks and a key used for operating the program locks to be opened and closed, the two program locks are correspondingly arranged on the wire inlet cabinet and the wire outlet cabinet and located on one side of the closing operation hole, and interlocking plates are arranged on the wire inlet cabinet and the wire outlet cabinet and located at the other ends of the program locks in a swinging mode. One end of the interlocking plate extends towards the opening operation hole to form a blocking edge used for shielding the opening operation hole, and the other end of the interlocking plate is provided with an abutting edge used for abutting against and driving the interlocking plate to rotate to relieve shielding of the opening operation hole after a key is pulled out through operation of the program lock. A reset member used for keeping the interlocking plate to shield the opening operation hole is arranged between the wire inlet cabinet or the wire outlet cabinet and the interlocking plate. The interlocking device is simple in structure, reliable in interlocking and good in use effect.

The utility model discloses a rubber product demoulding device which comprises a mould core, a demoulding device body is arranged on the inner side of the mould core, the demoulding device body comprises a fixing pipe, a sealing pipe, a communicating bin and a connecting pipe, the fixing pipe and the connecting pipe are detachably installed in the mould core, the communicating bin is arranged on the inner side of the mould core, and the connecting pipe is connected to the lower portion of the communicating bin. A one-way device is arranged in the fixed pipe and comprises a sealing plate, a tension spring and a movable frame, the sealing plate is arranged in the sealing pipe, the movable frame is installed on the inner side of the sealing pipe, the tension spring is connected with the sealing plate and the movable frame, an adjusting mechanism is arranged in the mold core and comprises a movable groove, a gear, a rack, an outer sleeve and an inner sleeve, and the movable groove is formed in the inner side of the mold core. The gear and the inner sleeve are rotationally connected with the fixed pipe and the sealing pipe respectively, the rack is arranged in the movable groove, and the mold has the advantages of being efficient in demolding, capable of preventing blocking and capable of adjusting air pressure.

This utility model relates to the field of mixing machine technology, and provides an MPP tube mixing machine with a metering structure. It includes a base plate, a control center cabinet on top of the base plate, a bracket fixedly connected to the top of the base plate, and a metering screw feed mechanism on the top of the base plate. The cooperation between the metering screw feed mechanism and the internal components of the mixing mechanism enables precise control of the material conveying volume to achieve the metering function. The grooved design of the bracket provides stable support for the feeding box, ensuring stable operation. The reasonable layout of the feeding pipe and the transmission pipe ensures smooth material conveying, improving the accuracy and stability of feeding, and effectively enhancing the overall working efficiency and mixing quality of the MPP tube mixing machine. Through the above technical solution, the technical problem of poor efficiency in the mixing process in related technologies is solved.

The utility model discloses a stirring container with a quick disassembly and assembly mechanism, which comprises a stirring barrel, a fixed ring cover fixedly clamped in the middle area above the stirring barrel, a connecting end cover movably inserted in the middle of the fixed ring cover, a motor fixedly connected above the connecting end cover, and a clamping plate fixedly connected with one end, close to the fixed ring cover, of the side surface of the connecting end cover, a positioning block is fixedly connected to the end, close to the connecting end cover, above the fixing ring cover, and a spring cotter is arranged on the side face of the clamping plate and fixedly connected to the upper portion of the fixing ring cover through a bolt. The disassembly and assembly process of the connecting end cover is simplified through the one-key pressing unlocking design of the spring bolt, the bolt is prevented from being disengaged and lost through the synergistic effect of the limiting baffle and the spring, reliable reset of the locking state is guaranteed, the maintenance time is greatly shortened, and the maintenance efficiency is improved. And the maintenance door is arranged, so that an operator can directly enter the stirring barrel to treat the stirring paddle under the condition that the whole machine is not disassembled, and the independent replacement function of the modularized stirring assembly is matched.

The utility model discloses a sampling device for dynamic testing of a rheometer, and belongs to the field of sampling tools. The sampling device for the dynamic test of the rheometer comprises a first tong head arm, a second tong head arm and a material pushing mechanism which can be opened and closed, a sampling die is arranged on the first tong head arm, a flat tong mouth opposite to the sampling die is arranged on the second tong head arm, and the material pushing mechanism comprises an ejector pin, an elastic reset piece and a material pushing plate. The material pushing plate is located in a mold cavity of the sampling mold, the ejector pin is fixedly connected with the material pushing plate and penetrates out of the bottom of the sampling mold, and the elastic reset piece acts on the ejector pin and is used for making the material pushing plate keep the elastic trend of being located at the bottom of the mold cavity. According to the utility model, the material pushing mechanism is arranged on the sampling mold, and after the sampling mold is filled with materials and is pressed and formed, the formed sample is pushed out by the material pushing plate by utilizing the pressing of the external ejector pin, so that the operation of taking out the formed sample is greatly facilitated, and the sampling convenience and efficiency of the rheological test are improved.