38results about How to "Adjustable extension length" patented technology

The invention relates to a medical internal medicine liquid pumping device, which relates to the field of medical instruments. The device comprises a bottom plate, a liquid pumping structure and a puncture needle, a supporting column is arranged on bottom plate, the supporting column is provided with an L-shaped rod, the L-shaped rod is provided with a transverse groove, the transverse groove is provided with a polygonal rubber sleeve, the polygonal rubber sleeve is provided with a polygonal sliding rod; the polygonal sliding rod is provided with a sliding rod; the polygonal sliding rod is provided with a fixing bolt; the sliding rod is provided with an angle adjusting structure, the angle adjusting structure comprises a threaded rod, a sliding block, an arc-shaped clamping plate, a convexblock, a disc, a rotating rod and a mounting block; rotating rod is equipped with the mounting block, the disc is equipped with the rotating rod, a positioning structure is equipped with the mountingblock, the disc is provided with a protruding block, the protruding block is provided with a threaded rod, the threaded rod is provided with the sliding block, the sliding block is provided with an arc-shaped clamping plate, and the arc-shaped clamping plate is provided with a holding ring, the puncture needle is arranged in holding ring and provided with a hose, and hose is provided with liquidpumping structure. According to the device, the puncture needle can be conveniently and stably clamped, medical staff do not need to hold the puncture needle during liquid pumping, the puncture stability is guaranteed, and a patient is better protected.

The invention provides a back connecting device for a lower limb rehabilitation robot. The back connecting device comprises a bottom layer structure connected with the lower limb rehabilitation robot,a middle structure arranged in the bottom layer structure and capable of moving up and down, a connecting structure installed on the middle structure, an upper backrest structure and a lower backreststructure, wherein the upper backrest structure and the lower backrest structure are arranged on the side, away from the bottom layer structure, of the connecting structure, and the extending lengthof the upper backrest structure and the extending length of the lower backrest structure are adjustable. A lead screw is vertically arranged in the middle of the bottom layer structure, a worm and gear pair is arranged on the top of the lead screw, a first worm gear is coaxial with the lead screw, a worm is perpendicular to the lead screw, first hand wheels are arranged at the two ends of the worm, the lead screw is provided with a moving block matched with the lead screw in a sleeving manner, and the middle structure is fixedly connected with the moving block. The problems that a left leg fixing mechanism and a right leg fixing mechanism of the lower limb rehabilitation robot are not flexible in up-down and left-right adjustment, and the supporting positions of the backrest structures areinconvenient to adjust are solved.

The invention discloses a bottle opener with a safety protection structure. The bottle opener comprises a supporting rod, a transverse rod and lock cover rings. A sliding groove is formed in the surface of the supporting rod, and a handle is welded to the left side of the supporting rod. A cotton sleeve is fixed to the middle of the handle. A support rod is welded to the left side of the transverse rod, and the transverse rod is located above the supporting rod. A fixing sleeve is fixed to the right side of the transverse rod, and a screw is arranged in the middle of the fixing sleeve. A supporting block is welded to the lower portion of the support rod. A rotation joint is arranged on the right side of the supporting block. A connecting rod is arranged in the middle of each lock cover ring, the lock cover rings are located on the right side of the rotation joint, and pressing teeth are welded to the inner walls of the lock cover rings. Extension springs are arranged between the lock cover rings. A bottle sleeving ring is arranged below the lock cover rings, and a connecting spring is arranged in the middle of the bottle sleeving ring. The bottle opener with the safety protection function is high in universality and is suitable for being used by bottled cans with different bottle cap sizes, and labor is saved during using; and the protection structure is arranged, and hurting is avoided accordingly.

The invention discloses a cleaning device with a convenient-to-replace brush head for a gene detector and belongs to the technical of gene detection. The cleaning device comprises an empty barrel, wherein a liquid outlet pipe is fixedly connected to the middle end of the left side of the empty barrel; a first one-way valve is arranged on the liquid outlet pipe; the liquid outlet pipe is connectedwith a sprayer; a water inlet pipe and a liquid inlet pipe are arranged on the empty barrel; a propelling device is arranged in the empty barrel and comprises a rubber pad, a cylinder and a push rod;the rubber pad surrounds the outer side of the cylinder; the push rod is connected to the rear side wall of the cylinder; a connecting plate is connected to the bottom of the empty barrel; a motor isarranged at the bottom of the connecting plate and connected to a first loop bar; the first loop bar is connected to a second loop bar; a through hole is formed in each of the first loop bar and the second loop bar; a square groove is formed in the second loop bar; a brush head is arranged at the left end of the second loop bar and comprises a connection block and a bristle fixing plate; the connection block and the square groove are in movable connection; a second plug pin is connected to each of the second loop bar and the connection block; and the connection block is connected to the bristle fixing plate. The cleaning device is simple in structure and adjustable in length, and the brush head is convenient to replace.

The invention provides a combined wheel disk for pavement ice and snow removal and belongs to the technical field of snow removal machinery. The combined wheel disk is used for solving the problems during accumulated snow or ice layer cleaning of the existing snow removal machinery that the pavement cleaning is not complete and the removal is poor in quality and low in efficiency. The combined wheel disk comprises an outer disc, an inner disc, a central disc and a plurality of ice and snow breaking devices, wherein the central disc and the inner disc are fixedly connected, the inner disc and the outer disc are fixedly mounted, each ice and snow breaking device comprises a sliding cutter bar, a cutter bar seat and a telescopic device, the inner ends of the sliding cutter bars are mounted in the cutter bar seats, cutters are mounted at the outer ends of the sliding cutter bars, one end of each telescopic device is connected to the external wall of the corresponding cutter bar seat through a connecting pin, the other end of each telescopic device is connected to a pin seat through a telescopic device connecting pin, and each pin seat is fixedly mounted on the inner disc. The combined wheel disk is ingenious in design, novel in structure, low in manufacturing cost and convenient in mounting; the adjustment and replacement of the cutters are convenient and fast, the economic benefit is remarkable, the service life is long, and cleaning operation for pavements with snow retention and ice accretion can be efficiently completed.

The invention discloses an adjustable support for a crane, in particular to the field of mechanical equipment. It includes a base mechanism, a support mechanism is installed above the base mechanism, a support rod mechanism is connected to the support rod mechanism, and a support rod mechanism is installed on the support rod mechanism. A rotating mechanism, an adjustment mechanism is installed on the support rod mechanism, and an upper mechanism is connected to the top of the support rod mechanism. In the present invention, the No. 1 support wheel can be used as the fulcrum of the crane wire by designing the adjustment mechanism, and the fulcrum The extension length of the cable is adjustable, so that when the invention is in use, the extension length of the steel cable can be adjusted without moving the invention, and the process is simple and fast.

The invention relates to a wing folding structure of an unmanned aerial vehicle. The wing folding structure comprises a vehicle arm and a vehicle arm mounting seat, wherein a blind hole is formed in the end part of the vehicle arm mounting seat; the wing folding structure also comprises a connecting column which is connected with a spring at the bottom of the blind hole; one end, which is away from the blind hole, of the connecting column is rotatably connected with one end part of the vehicle arm; a positioning bulge is fixedly arranged on the surface of the connecting column; a positioning groove matched with the positioning bulge is formed in the surface of the vehicle arm mounting seat; the positioning groove communicates with the blind hole; and a plurality of L-shaped gear grooves connected with the positioning groove are also formed in the surface of the vehicle arm mounting seat. When a wing needs to be unfolded, after the vehicle arm is rotated and unfolded, the positioning bulge is poked backwards, and the spring is compressed; and the positioning bulge is clamped in the gear groove to be fixed, and the connecting column integrally retracts in the blind hole. The wing folding structure disclosed by the invention is high in integral compliance, simple in structure, convenient to operate, simple in integral structure and low in cost, and besides, the extending length of the vehicle arm can be adjusted.

The invention relates to the technical field of rice seedling raising, in particular to a raw material feeding device for rice seedling raising. The device comprises a mounting plate, enclosure pipesare arranged on the bottom surface of the mounting plate, a motor is arranged on the top surface of the mounting plate, a rotor of the motor is in transmission connection with a screw shaft through acoupler, an extension pipe sleeves the outer side of each enclosure pipe, a soil breaking blade is arranged on the outer wall of the extension pipe, a baffle ring sleeves the outer side of each enclosure pipe, a connecting frame is arranged on the top surface of the mounting plate, a material box is arranged on the top surface of the connecting frame, a feeding opening is formed in a bottom plateof the material box, and a material conveying pipe is inserted into the bottom end of the feeding opening. The device has the beneficial effects that: multiple sets of enclosure pipes are installed below the mounting plate, the screw shaft is additionally arranged in each enclosure pipe to convey a fertilizer fed by the material conveying pipe into soil, the extending length of the extension pipearranged on the outer side of each enclosure pipes in a sleeving mode can be adjusted, and soil with different depths can be fertilized conveniently.

The invention relates to the field of engineering structure shock isolation and equipment vibration control and provides a critical unlocking vertical isolation bearing and a method of the critical unlocking vertical isolation bearing. According to the critical unlocking vertical isolation bearing, prestress is applied to the position between an upper support plate and a lower support plate through a first locking component, a second locking component and a first elastic piece, so that part of deformation generated after the critical unlocking vertical isolation bearing bears the vertical load can be eliminated, when the first locking component and the second locking component conduct locking, the critical unlocking vertical isolation bearing has the large initial vertical rigidity, and meanwhile the purpose that the smaller rigidity of the first elastic piece can be set is achieved; and besides, when the pressure value of the upper support plate reaches the set value under the effect of a design earthquake, the opposite motions of the upper support plate and the lower support plate force a lock tongue to be separated from a lock hole, and the first locking component and the second locking component rotate relatively to complete unlocking, and therefore the first elastic piece with the small rigidity and a damper extend and contract under the earthquake effect for consuming energy, and the better shock isolation purpose is achieved.

The invention discloses an auxiliary supporting device for temporary parking of a two-wheeled scooter, which comprises a main shaft installed on the pedal of the scooter, a parking pressure plate installed on the main shaft, and a support rod connected with the main shaft. A torsion spring is connected between the rotating shaft and the parking pressure plate. The spring body of the torsion spring is sleeved on the main shaft, and there are force arms extending from the two ends of the spring body. One of the force arms is fixedly connected to the parking pressure plate, and the other force arm The arms are crimped onto the scooter pedals. When driving the scooter and encountering red lights, traffic jams and other situations that require temporary parking, the driver only needs to step on the parking pressure plate, and the two support rods will be lowered. The support rods are supported on both sides of the vehicle body to maintain the balance of the vehicle body. At this time, the driver only needs to release the parking pedal, and the two support rods will be retracted, which will not affect the normal driving, thus solving the problem of getting wet and dirty shoes and socks when driving on rainy days or muddy roads. Trousers problem.

The invention discloses an insulating device for preventing a grounding fault in an electric power field. The insulating device includes a first insulating rod, a second insulating rod and a third insulating rod. The first insulating rod is provided with a first circular chamber. Four fixed cross bars are equidistantly welded onto the top of the sidewall of the first circular chamber. A motor is fixed to the bottom inner wall of the first circular chamber. A screw rod is welded onto the output shaft of the motor. The second insulating rod is placed inside the first circular chamber. The second insulating rod is provided with a second circular chamber. A first arc rack meshed with the screw rod is arranged on the sidewall of the second circular chamber. The third insulating rod can be easily installed and disassembled inside a mounting tube. The distance between the bottom of the first insulating rod and top of the second insulating rod can be changed, which enables a sensor on the third insulating rod to slide on a transmission line for detection. It is convenient for electrical maintenance personnel to use the insulating device.

The invention discloses a reusable spread foundation template special for skirt support equipment. The template comprises a top center round flat plate, a center cylinder, a bottom center round flat plate, a radial support beam rib plate and a radial support beam which are welded to form a reusable center frame; comprises a spread beam, a spread beam block plate, an annular plate and a support beam connecting plate which are welded to form a spread structure; and comprises a group of foundation annular subblocks, an annular plate connecting plate and an annular plate rib plate which are welded to form a foundation bolt foundation template annular plate. The spread beam in the spread structure is at the position of a limit hole and is used for adjusting to realize spread lengths of different spread beams, thus being applicable to layout of foundation bolts with different diameters. Different layout forms can be adopted for the reusable center frame according to the layout number and layout requirements of the foundation bolts and the design conditions of the foundation annular subblock group. In short, the detachable structure provides convenience for transportation and installation and saves cost.

The invention discloses a bulbus fritillariae ussuriensis planting protective cover framework with an adjusting function in the technical field of bulbus fritillariae ussuriensis cultivation, which comprises a framework body, side connecting blocks are fixedly connected to two sides of the framework body, first connecting holes are formed in the upper end surfaces of the side connecting blocks, limiting circular grooves are formed in the outer circumferential surfaces of the first connecting holes, and screw rods are arranged in the first connecting holes. A conical support is fixedly connected to the lower end face of the lifting column, an outer connecting ring is fixedly connected to the outer circumferential face of the lifting column, through holes are formed in the two sides of the upper end face of the side connecting block, and a side connecting column is fixedly connected to the upper end face of the outer connecting ring; by arranging the framework body, the side connecting blocks, the first connecting holes, the limiting circular grooves, the screws, the lifting columns, the conical supports, the outer connecting rings, the through holes and the side connecting columns, the stability and the wind resistance of the framework are improved.