44results about How to "Various drive methods" patented technology

The invention relates to a non-loss hard seal butterfly valve which consists of a valve body, a valve rod, a butterfly plate and a valve seat. The invention is characterized in that the valve seat can be a movable valve seat which can axially move along the inner wall of the valve body; one side of the valve body is provided with a lateral body; seal rings are arranged both between the valve seat and the valve body, between the valve seat and the lateral body; a seal component is fixed on a butterfly plate frame; moving fit clearances are reserved between an inner side surface and an outer side surface of the valve seat, between the valve body and the lateral body; a spring is arranged between an outer end surface of the valve seat and the lateral body, an inner end surface of the valve seat is connected with the valve rod through a push rod; an inner end surface of the lateral body is provided with a spring; an upper end and a lower end of the valve rod are respectively provided with a curved slot; an upper curved slot and a lower curved slot are respectively formed by a skewed slot and an arc slot; the middle part of the valve rod is also provided with a long keyway, and an upper sliding key and a lower sliding key which are respectively fixed on an upper connecting seat and a lower connecting seat, and the upper connecting seat and the lower connecting seat are respectively fixed on the butterfly plate; the push rod consists of an upper push rod and a lower push rod, one end of the upper push rod and one end of the lower push rod are both provided with a roller, one end of the lower push rod is embedded in the lower curved slot and capable of sliding, while the other end of the lower push rod is hinged with the inner end surface of the movable valve seat; the upper push rod and the lower push rod are symmetrically arranged; a uni-eccentric structure is formed between a butterfly plate rotating axis and a seal pair plane.

The invention discloses an intermittent drive non-abrasion hard sealed butterfly valve. The intermittent drive non-abrasion hard sealed butterfly valve is characterized in that the butterfly valve comprises a valve body, a movable valve seat, a valve rod, a lower valve rod sleeve, an upper valve rod sleeve, a butterfly plate and an intermittent driving device; the left side and the right side of the valve body are provided with flanges perpendicular to the axis of the valve body; the flanges are used for connecting the butterfly valve with a pipeline flange; the upper end and the lower end of the valve body are provided with an upper valve rod sleeve hole and a lower valve rod sleeve hole; a cavity of the valve body is a stepped hole; the upper valve rod sleeve and the lower valve rod sleeve penetrate into the valve body through the upper valve rod sleeve hole and the lower valve rod sleeve hole correspondingly; retainer cups are arranged between the upper valve rod sleeve and the valve body as well as between the lower valve rod sleeve and the valve body; the retainer cups are connected with the valve body through bolts, and adjusting gaskets are installed between the retainer cups and the valve body; both the upper end and the lower end of the same busbar of the upper valve rod sleeve are provided with flat key grooves, in addition, an upper cam is fixedly installed at the lower end of the upper valve rod sleeve through a flat key, and the upper end of the upper valve rod sleeve is connected with the intermittent driving device; the upper end of the lower valve rod sleeve is provided with a flat key groove, and a lower cam is fixedly installed at the upper end of the lower valve rod sleeve through a flat key; and a transferring shaft is installed between the upper cam and the lower cam.

The invention belongs to the pneumatic artificial technical field and in particular relates to a pneumatic artificial muscle with self-sensing and driving functions. The pneumatic artificial muscle comprises fibers, an elastic hose, a cylindrical sleeve pipe, a fiber collecting hoop, a fiber collecting hole, a piezoelectric body, an electrode, a sensing circuit, a drive circuit, a hoop and an air pipe joint. The pneumatic artificial muscle has the beneficial effects that via the direct piezoelectric effects of the piezoelectric body, the contractility of the fibers can be measured to obtain the external load driving force of the pneumatic muscle; meanwhile, collision of the pneumatic muscle can be self-sensed according to the real-time reading of a voltmeter; via the inverse piezoelectric effects of the piezoelectric body, the amount of contraction of the pneumatic muscle can be increased and the rigidity of the pneumatic muscle can be changed; compared with the same model of pneumatic muscle on the market, the pneumatic muscle provided by the invention can achieve the effects of detecting the external load driving force, self-sensing collision, increasing the amount of contraction of the pneumatic muscle and changing the rigidity of the pneumatic muscle; the properties of the pneumatic muscle are improved and enriched; and the pneumatic muscle has function innovation and extension and is worthy to be applied.

The invention relates to a wear-free hard-sealed butterfly valve, which includes a valve body, a valve rod, a butterfly plate and a valve seat, and is characterized in that the valve seat is a movable valve seat that can move axially along the inner wall of the valve body; one side of the valve body There is a side body; a sealing ring is installed between the valve seat, the valve body and the side body; the seal is fastened on the butterfly plate frame; there is a moving fit gap between the inner and outer sides of the valve seat and the valve body and the side body , there is a spring between the outer end surface of the valve seat and the side body, and the inner end surface is connected with the valve stem through a push rod; There is a long keyway in the middle of the valve stem, and there are upper and lower keys respectively fixed on the upper and lower connecting seats, and the upper and lower connecting seats are respectively fastened on the butterfly plate; the push rod It includes upper and lower push rods, one end of which is equipped with a roller, one end of the lower push rod is embedded in the lower curved groove, and can slide, and the other end is hinged with the inner end surface of the movable valve seat; the upper push rod and the lower push rod are installed symmetrically ; There is a single eccentric structure between the disc rotation axis and the sealing plane.

The invention discloses a zero-friction hard seal butterfly valve. The zero-friction hard seal butterfly valve is characterized in that the butterfly valve comprises a valve opening, a valve body, a valve seat, a disc, a valve shaft, a guide groove, an incomplete gear, a rack, a guide shaft No.1, a guide shaft No.2, a self-lubricating shaft sleeve, a linkage rod, an intermittent mechanism, a driving handle and a seal device, a through hole is formed in the valve body, a valve neck is welded at the part of the through hole, the valve seat is welded on the inner circumferential surface of the valve body, and the outer circumferential surface of the valve seat is a conical surface; the disc is a moving type disc and adopts a ring structure, a hard seal ring is mounted at the outer circle part of the disc, and the movement type refers to a motion structural mode that the disc can first make transverse movement along the axial direction of the valve body and then rotate with the guide shaft No.1 as a center and is opened in a zero friction manner; the disc is connected with the guide shaft No.1; the guide shaft No.1 is mounted in the guide groove and penetrates through the rack, and the guide shaft No.1 is also in interference fit with the rack at the connecting part; and the guide shaft No.2 is also mounted in the guide groove.

The invention provides a rear towing wheel device for a sewing machine, and belongs to the technical field of machinery. The problems of large occupied area, complexity in mounting and debugging synchronization troubles of a conventional rear towing wheel are solved. The rear towing wheel device for the sewing machine comprises a rear towing wheel, a power mechanism for driving the rear towing wheel to ascend and descend and a linkage mechanism for driving the rear towing wheel to ascend and descend along with a presser foot lifting component, wherein a vertically arranged vertical shaft and a rear towing wheel wrench capable of independently driving the rear towing wheel to ascend and descend are arranged on the rear towing wheel; the power mechanism is arranged between a main shaft and the vertical shaft; the linkage mechanism is arranged between the presser foot lifting component and the rear towing wheel, and is connected with a knee-raised pull rod. According to the rear towing wheel device, the rear towing wheel can be independently lifted through the towing wheel wrench, can ascend and descend through the knee-raised pull rod, and can also be operated by the presser foot lifting component to ascend and descend in a linkage way, so that driving modes are diversified, and high practicability is ensured.

The invention provides a chainless gear drive bicycle capable of integrating pedaling drive, electric drive and solar drive. The chainless gear drive bicycle comprises an adjustable handlebar, a handlebar stem, a frame, a front wheel, a rear wheel, a gear drive mechanism, a motor power mechanism and a solar power mechanism. The chainless gear drive bicycle is characterized in that two circles of inner teeth large gears are arranged in an inner ring of a hub of the rear wheel and meshed with a pair of driven large outer gears in the gear drive mechanism for driving, the effect that the ratio of driving force physical torque to ground frictional resistance torque is maximum is achieved, the frame is designed according to human engineering, the handlebar is transversely, vertically, forwards and backwards adjusted, a prostration riding mode and a straight sitting riding mode can be converted, the effects of comfortable riding and the minimum wind resistance are achieved, manpower drive, motor drive and solar drive are scientifically and organically integrated, and the ideal effects of comfort, labor saving, multiple driving modes and the long driving mileage are achieved.

The invention discloses an inkjet printing head, which comprises at least one ejection unit, a cover film matched with the ejection unit, a piezoelectric ceramic actuator and a cover plate, a fluid inflow pipeline, a fluid outflow pipeline and a driving circuit device ; The piezoelectric ceramic brake and the cover plate are connected to form a number of independent piezoelectric ceramic units that are not connected to each other; the cover plate is connected to the injection unit, and the connection contact surface is provided with a number of fluid grooves on one side of the injection unit. The position of the unit corresponds to the position of the groove of the fluid tank; the fluid channel and the cover plate form a fluid channel, and each fluid channel is correspondingly equipped with at least one nozzle leading to the outside, so that the inkjet print head forms side or end surface spraying. Correspondingly, the invention also discloses an inkjet printer. With the present invention, on the premise of increasing the deformation of the piezoelectric ceramic brake and realizing the effective ejection action of the large-diameter ink, adjacent nozzles can operate simultaneously so that all nozzles can work simultaneously, thereby improving work efficiency.

The invention provides a door leaf synchronous linkage clutch device and a side-by-side door, which relate to the technical field of side-by-side doors. The door leaf synchronous linkage clutch device, the left door shaft wheel is coaxially arranged on the left door shaft, the transition wheel is connected to the left door shaft wheel, the right door shaft wheel is coaxially arranged on the right door shaft; the left door shaft is coaxially arranged on the left synchronous wheel There is a left pulley, and the right pulley is coaxially arranged on the right synchronous pulley, and a synchronous belt is connected between the left pulley and the right pulley; The right clutch wheel is set between the synchronous wheels; the clutch mechanism drives the left clutch wheel and the right clutch wheel to be in or not in the press-fit state; in the press-fit state, the transition wheel is connected to the left synchronous wheel through the transmission of the left clutch wheel, and the right door shaft wheel is connected through the right clutch The wheel drive connects the right synchronous wheel. The beneficial effect of the present invention is that by controlling the clutch mechanism by touching the operating mechanism, the synchronous opening and closing of two door leaves can be realized, and the single action of a single door leaf can also be realized.

The invention discloses a shift register unit, a driving method, a gate driving circuit and a display device, belonging to the technical field of display. In addition to an output control module and an output module, the shift register unit also includes two clock control modules. Through the two clock control modules, clocks with different frequencies or different duty ratios can be output to the output control module and the output module respectively. signal, so that the output module can output driving signals of different frequencies or different duty ratios to the pixel units through the output terminal, and then can adjust the charging time of each row of pixel units, thus enriching the gate drive circuit to drive the display device way to improve the flexibility of the drive. The present invention is used to display images.

The invention discloses an intermittent drive non-abrasion hard sealed butterfly valve. The intermittent drive non-abrasion hard sealed butterfly valve is characterized in that the butterfly valve comprises a valve body, a movable valve seat, a valve rod, a lower valve rod sleeve, an upper valve rod sleeve, a butterfly plate and an intermittent driving device; the left side and the right side of the valve body are provided with flanges perpendicular to the axis of the valve body; the flanges are used for connecting the butterfly valve with a pipeline flange; the upper end and the lower end of the valve body are provided with an upper valve rod sleeve hole and a lower valve rod sleeve hole; a cavity of the valve body is a stepped hole; the upper valve rod sleeve and the lower valve rod sleeve penetrate into the valve body through the upper valve rod sleeve hole and the lower valve rod sleeve hole correspondingly; retainer cups are arranged between the upper valve rod sleeve and the valve body as well as between the lower valve rod sleeve and the valve body; the retainer cups are connected with the valve body through bolts, and adjusting gaskets are installed between the retainer cups and the valve body; both the upper end and the lower end of the same busbar of the upper valve rod sleeve are provided with flat key grooves, in addition, an upper cam is fixedly installed at the lower end of the upper valve rod sleeve through a flat key, and the upper end of the upper valve rod sleeve is connected with the intermittent driving device; the upper end of the lower valve rod sleeve is provided with a flat key groove, and a lower cam is fixedly installed at the upper end of the lower valve rod sleeve through a flat key; and a transferring shaft is installed between the upper cam and the lower cam.

The invention discloses a shift register unit, a driving method, a grid driving circuit and a display device, belonging to the field of display technology. The shift register unit includes: a clock control module, an output control module and an output module; the shift register unit can output clock signals of different frequencies or different duty ratios to the output control module and the output module respectively through the clock control module , so that the output module can output driving signals of different frequencies or different duty ratios to the pixel units through the output terminal, so as to adjust the charging time of the shift register unit for each row of pixel units, thus enriching the gate driving circuit for display The drive mode of the device improves the flexibility of the drive. The invention is used to display images.

The invention discloses a conveying device for rubber mat production, which comprises a supporting base, a second conveying mechanism is fixedly installed on the upper end of the supporting base, and supporting connecting plates are evenly and fixedly installed on both end surfaces of the second conveying mechanism, so that The upper end of the supporting connecting plate is fixedly installed with a first conveying mechanism, and the first conveying mechanism is located directly above the second conveying mechanism, and the first conveying mechanism includes a first conveying unit, a driving belt and a second conveying unit, The structural specifications of the first conveying unit and the second conveying unit are the same, and the first conveying unit includes a conveying frame, a limiting plate, a pressing device and a driving device, and the limiting plate is symmetrically and fixedly installed on the upper end surface of the conveying frame edge, and the pressing device is symmetrically and fixedly installed on the upper end of the limiting plate. The device can quickly and labor-savingly transport the larger rubber pads that need to be transported during use, and can quickly disassemble and splice the device according to the transport distance.

The transportation structure for rock wool board processing comprises a bottom plate, vertical plates are fixedly installed on the left portion and the right portion of the upper end of the bottom plate, a bearing plate is fixedly installed at the upper ends of the two vertical plates, and fixing bases are fixedly installed on the front portion and the rear portion of the upper end of the bearing plate; a feeding mechanism is arranged between the two vertical plates, a plurality of rock wool board bodies are jointly placed between the two fixing bases, two fixing frames are jointly arranged at the upper ends of the rock wool board bodies, moving mechanisms are fixedly installed at the four corners of the lower end of the bottom plate, and vertical rods are fixedly installed at the left rear corner and the right rear corner of the upper end of the bottom plate. A connecting plate is fixedly connected between the two vertical rods, and handles are fixedly mounted at the upper parts of the rear ends of the two vertical rods. The transportation structure for rock wool board processing is high in working efficiency, convenient to use, capable of achieving a good protection effect on rock wool boards in the transportation process and suitable for popularization.

The invention discloses a zero-friction hard seal butterfly valve. The zero-friction hard seal butterfly valve is characterized in that the butterfly valve comprises a valve opening, a valve body, a valve seat, a disc, a valve shaft, a guide groove, an incomplete gear, a rack, a guide shaft No.1, a guide shaft No.2, a self-lubricating shaft sleeve, a linkage rod, an intermittent mechanism, a driving handle and a seal device, a through hole is formed in the valve body, a valve neck is welded at the part of the through hole, the valve seat is welded on the inner circumferential surface of the valve body, and the outer circumferential surface of the valve seat is a conical surface; the disc is a moving type disc and adopts a ring structure, a hard seal ring is mounted at the outer circle part of the disc, and the movement type refers to a motion structural mode that the disc can first make transverse movement along the axial direction of the valve body and then rotate with the guide shaft No.1 as a center and is opened in a zero friction manner; the disc is connected with the guide shaft No.1; the guide shaft No.1 is mounted in the guide groove and penetrates through the rack, and the guide shaft No.1 is also in interference fit with the rack at the connecting part; and the guide shaft No.2 is also mounted in the guide groove.

The invention relates to a baby cradle and a swaying method thereof and is designed, aiming at the technical problem that the existing like structure is not good enough in design. The cradle body of the baby cradle comprises a swinging bed and a bed frame; the baby cradle has the following key points: a rocker mechanism is arranged between the swinging bed and the bed frame, a gap for the rocker mechanism to swing left and right is formed, and the rocker mechanism is connected with a swinging component of a driving plate through a hauling rope; and the rocker mechanism consists of two groups of symmetrically-arranged rocker components, and a fixing rod, a swing rod and a driving rod in each group of rocker component are arranged symmetrically to constitute a connecting rod; and the driving plate is arranged on a mounting plate at one side of the bed frame through bolts. The first connecting rod is connected with one ends of the swing rod and the driving rod of each rocker component, and the second connecting rod is connected with the other ends of the fixing rod and the driving rod of each rocker component. According to the baby cradle and the swaying method, the structural design is reasonable, the use, production, assembly and disassembly, and maintenance are convenient, various driving modes can be adopted, the energy consumption and driving force are small, the swaying lasts for long time, and energy conservation and environmental protection are realized; and the baby cradle is suitable for being used as a baby cradle and a structural improvement of like products.