41results about How to "Change swing" patented technology

The invention belongs to the technical field of medical instruments, and particularly relates to a lower limb rehabilitation training device which comprises a sitting plate and a bottom plate, supporting legs are arranged on the lower end face of the sitting plate, a backrest is hinged on one side of the sitting plate, a lifting supporting structure is mounted on the backrest, a speed reducing motor is mounted on the bottom plate, an output shaft of the speed reducing motor is mounted with a connection plate, a rotating shaft is mounted at the free end of the connection plate, a moving plate is arranged above the connection plate, a kidney hole is formed in the moving plate, the free end of the rotating shaft is penetratingly arranged in the kidney hole, a roller is movably arranged in a sliding rail in a sleeved manner, a supporting column is arranged at each of two ends of the sliding rail, the sliding rail is mounted on the bottom plate through the supporting columns, the sitting plate is fixedly connected with the supporting columns, a first moving part is hinged on a rack, a second moving part is hinged at the free end of the first moving part, length of each of the first moving part and the second moving part is adjustable, and the free end of the second moving part is hinged to the supporting columns. The invention aims to solve the problems of low adaptability and highrequirements on motors caused by structural defects of existing lower limb rehabilitation training devices.

The invention provides a robot fish and a fishtail working principle thereof, and relates to the field of mechanical fish. The robot fish comprises a fish main body and a fishtail, wherein the fishtail comprises a plurality of first frame bodies which are hinged sequentially to form a fishtail main body; one end of the fishtail main body is hinged to a second frame body serving as a tail fin; the other end of the fishtail main body is hinged to a third frame body; a mounting groove is formed in the third frame body; the robot fish further comprises a connecting part; the middle part of the connecting part is hinged to the third frame body; an adjustable eccentric wheel device which allows the third frame body to swing horizontally in the horizontal direction relative to the connecting part is arranged at one end, extending to the mounting groove, of the connecting part, and the other end of the connecting part is connected to the fish main body; a driver for driving the adjustable eccentric wheel device is arranged in the fish main body. The robot fish has the benefits that complete fishtail-type swinging of the fishtail can be realized, the robot fish can swim freely in water, and swimming of the robot fish can be more real.

The invention discloses an intermittent linear conveying device, and belongs to the field of conveying equipment for intermittently and linearly conveying objects. A material moving cam (10) is connected with a material moving connecting rod (11), the material moving connecting rod (11) is connected to a vertical guide mechanism in a sliding mode, and a material moving shifting pawl (1) is fixedly connected with the vertical guide mechanism. The vertical guide mechanism is horizontally arranged on a vertical sliding plate (31) in a sliding mode, the vertical sliding plate (31) is vertically arranged in a sliding mode and is connected with a material moving lifting cam (16), the material moving cam (10) drives the material moving shifting pawl (1) to advance or retreat in place through the material moving connecting rod (11), and the material moving lifting cam (16) drives the material moving shifting pawl (1) to ascend and descend through the vertical sliding plate (31). A locating cam (14) is connected with a locating connecting rod (35) which is vertically arranged in a sliding mode, a locating shifting pawl (2) is fixedly connected with the locating connecting rod (35), and the locating cam (14) drives the locating shifting pawl (2) to ascend and descend. The intermittent linear conveying device has the advantages of being accurate in conveying position and reliable in motion, improving work efficiency and the like.

The invention discloses a vertical type net laying device capable of adjusting upright cotton density. The vertical type net laying device capable of adjusting the upright cotton density comprises a reciprocating type cotton feeding system, a vertical type cotton arrangement system and a horizontal conveying belt, the reciprocating type cotton feeding system comprises a reciprocating power part and a cotton feeding part mutually connected, a cotton feeding groove is formed in the middle of the cotton feeding part, the outlet of the cotton feeding groove is communicated with the inlet of a forming tunnel in the vertical type cotton arrangement system, the outlet of the forming tunnel is communicated with the horizontal conveying belt below the outlet, the vertical type cotton arrangement system comprises three layers, and each layer comprises a left cotton arrangement roll set and a right cotton arrangement roll set bilaterally symmetrical to the forming tunnel. When using, the density of a final product can be changed through setting different running speeds for left and right cotton arrangement roll sets in each layer. The vertical type net laying device capable of adjusting the upright cotton density is capable of adjusting the density and width of the upright cotton, and moreover, the structure is simple, and the operation is facilitated.

The invention relates to a small-scale screening device which is formed by a screening groove, a screen mesh, an outlet material baffle, a support, a rotating shaft, a motor and the like. The screening groove is formed by welding a semicircular cylinder and an end cover and is supported by the rotating shaft to complete pendular motion; the screen mesh is fixed in a rectangular screen mesh frame and installed in the middle of the screening groove in a detachable mode, and screen meshes with different screen holes are easy to replace; the outlet material baffle is installed on the periphery of the screening groove and is welded together with the support, a certain interval or gap is formed between the inner wall of the outlet material baffle and the outer wall of the screening groove, and overall swinging of the screening groove is not affected; the motor is connected with the rotating shaft through a circuit, and swinging frequency and amplitude of the screening groove are regulated through the motor. The screening device can effectively control standing time of materials in the screening groove on the screen mesh, blocking phenomena are not easily formed, the purpose of screening is rapidly realized, regulation performance is good, operation is stable, and the screening device can be widely applied to screening of the related industries of particles in food, medicine, the chemistry industry, the light industry and the like and is utilized on occasions where liquid and solid are rapidly separated.

The invention provides a yarn sequin sewing device of a multi-needle sewing machine, and belongs to the technical field of sewing machines. The device solves the problems of low sewing quality and low production efficiency of the conventional sequin sewing device. The yarn sequin sewing device of the multi-needle sewing machine comprises a needle plate positioned on a workbench plate of a frame, a cutter arranged on a machine needle seat and feeding push rods corresponding to machine needles in quantity; a guide mechanism capable of guiding feeding of sequins is arranged on the needle plate; and a mounting seat is fixedly connected to the end face of the frame, the mounting seat is connected with a push rod fixing rack through a rotating shaft, the feeding push rods are connected to the push rod fixing rack and can swing around the joints, and a driving mechanism capable of driving a push rod fixing seat to swing around the axial line of the rotating shaft through a transmission main shaft so that the feeding push rods push the sequins in the guide mechanism out one by one is also arranged on the mounting seat. According to the sequin sewing device, synchronism of the machine needles and the push rods is high, and the yarn sequin sewing quality is improved.

The invention discloses a swivel chair base capable of leaning forward in an adjustable mode. A swivel chair supporting rod is installed through a swivel chair rod hole in a subbase, an intermediate plate is installed above the subbase in a matched mode through a leaning rotation shaft, and the leaning rotation shaft is hinged to the vertical wall of the intermediate plate and the vertical wall of the subbase; a forward leaning plate is installed above the intermediate plate in a matched mode through a forward leaning bottom rotation shaft or forward leaning middle rotation shaft, and the forward leaning bottom rotation shaft is hinged to the vertical wall of the forward leaning plate and the vertical wall of the subbase; the forward leaning middle rotation shaft is hinged to the vertical wall of the forward leaning plate and the vertical wall of the intermediate plate. The swivel chair base and a chair back can lean forward simultaneously in a matched mode so as to fit the back, waist and whole pelvis of people who sit on a chair and better accord with human engineering; people feel more comfortable. The design can improve the practicality of the product, meet the requirements of consumers, and facilitate market expansion and product upgrading for enterprises.

The invention discloses a mechanical solid lump environment-friendly pulverizing method. A base is involved. According to the characteristics of the method, a slide is formed in one side of the upperend surface of the base; a lug at the lower end of a first wedge block is arranged in the slide in a matched mode; a stand column, a groove, symmetric vertical rods and a powder containing box are fixed to the base; symmetric rails are arranged in the groove; a circular ring at the end of the stand column is hinged to a center shaft of a rotating wheel; the rotating wheel is eccentrically and fixedly connected with a cylinder which is embedded into a slide groove; one end of the slide groove is fixedly connected with the upper end surface of the first wedge block; an inclined surface of the first wedge block is matched with an inclined surface of a second wedge block; the second wedge block is fixedly connected with one ends of two springs and two circular rods; the other ends of the springs are fixedly connected with one sides of circular rings at the ends of the corresponding vertical rods; and the circular rods penetrate through the corresponding springs and the circular rings at the ends of the corresponding vertical rods, and the other ends of the circular rods are fixedly connected with pushing blocks correspondingly.

The invention relates to a taekwondo training aid comprising a bottom plate, a kicking device and a side kicking device. The kicking device is mounted on the upper end surface in the middle of the bottom plate, and the side kicking device is mounted on the top of the outer end of the bottom plate. The kicking device comprises a kicking frame, a kicking electric sliding block, a kicking push rod, akicking telescopic plate, a kicking mechanism and a kicking connector. The side kicking device comprises a side kicking connecting column, a side kicking top column, a high kicking mechanism, a sidekicking motor, a side kicking connecting frame, a side kicking sliding rod and a side kicking mechanism. The aid can solve the problem of the existing taekwondo training frame that the existing taekwondo training frame cannot swing in the reciprocating mode to cooperate with a practitioner to perform reciprocating kicking practices, the training frame cannot perform the kicking practices, a kicking pad for high kicking cannot be subjected to angle adjustment, and the angle of the training frame cannot be adjusted. The function of mobile and static kicking practices at different heights for thetaekwondo practitioner can be achieved.

The invention provides an adjustable screening device for feed raw material processing and crushing. The outer surface of a rotating column is sleeved with a sleeve, the top of the sleeve is movably connected with an adjusting plate, the interior of the adjusting plate is slidably mounted on the front and rear surfaces of a sleeving head, and the sleeving head is slidably mounted at the inner end of the rotating column; and the sleeving head is movably installed in a swing rod, a screening barrel is fixedly installed on the outer surface of the swing rod, and a material receiving box is arranged below the screening barrel. After crushed feed falls into the screening barrel through a hose, the adjusting plate on the surface of the sleeve pulls the sleeving head to move, so that in the rotating process of the rotating column, the sleeving head is driven to swing front and back in the rotating process, the sleeving head drives the screening barrel on the top of the swing rod to swing front and back when swinging, screened feed particles fall into a receiving box, feed products meeting the particle size requirement can be quickly screened out, feed is in a moving state in the screening process, and the screening effect is improved.

The invention discloses a cam spring plate mechanism which solves the problem that in the prior art, a reciprocating moving mechanism easily deforms a part during machining. The cam spring plate mechanism comprises a machine frame, wherein the machine frame is provided with a spring plate, a clamping base for clamping the spring plate, a straight rod detachably connected with one end of the spring plate and a cam between the clamping base and the straight rod. One end of the machine frame is provided with a sleeve, the straight rod moves axially along the sleeve, the middle of the spring plate is fixed to one end of a clamping iron block, the other end of the clamping iron block is hinged to one end of a connecting rod, the other end of the connecting rod is hinged to the cam, the cam can rotate on the machine frame and the clamping base can be adjusted. The cam spring plate mechanism is simple in structure and good in effect.

The invention belongs to the technical field of sewing machines, and relates to an adjustable differential feeding mechanism. The adjustable differential feeding mechanism comprises a clamp body, an outer presser foot, an inner presser foot and a main shaft driven by a power device; a first eccentric wheel and a second eccentric wheel are arranged on the main shaft; a first eccentric wheel connecting rod is fixed to the first eccentric wheel, and a second eccentric wheel connecting rod is fixed to the second eccentric wheel; when the main shaft rotates, the first eccentric wheel drives the first eccentric wheel connecting rod to swing back and forth; the second eccentric wheel drives the second eccentric wheel connecting rod to swing up and down; the first eccentric wheel connecting rod swinging back and forth drives the outer presser foot to swing up and down through a transmission mechanism; and the second eccentric wheel connecting rod swinging up and down drives the outer presser foot to swing back and forth through the transmission mechanism. The adjustable differential feeding mechanism provided by the invention is simpler and more compact in structure, and a better cloth wrinkling effect can be obtained.

The invention relates to a creeping toy cassette mechanism which is controlled by a chip, comprising a shell as well as a motor and a gearing which are arranged inside the shell, wherein, the shell is connected with a corrugated hose which is internally provided with a movable arm fixedly connected on the shell; the movable arm consists of a plurality of short arms which are sequentially articulated with each other; the upper part of the movable arm is provided with a tension spring, and the tail end at the lower part of the movable arm is connected with the gearing by a stayguy; the gearing comprises a crank shaft connected with the stayguy, an eccentric mechanism connected with the crank shaft and a speed changer arranged between the motor and the eccentric mechanism. The creeping toy cassette mechanism can lead the toy to make creeping actions by the cooperation of all the parts, so as to change most swing and walking actions of the original toy cassette mechanism and enrich the actions of the toy; at the same time, the creeping toy cassette mechanism has simple structure and reliable work.