19results about How to "Reliable reset" patented technology

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 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 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 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 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 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.

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.