41results about How to "Change swing" patented technology

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 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 forage grass cutting and smashing integrated device. The device comprises: a base, wherein the base is of a cuboid structure, a mounting plate perpendicular to the base is fixed to the upper portion of the base, a fixed shaft is fixedly mounted on the mounting plate, and a cutter capable of rotating along the fixed shaft is movably arranged on the mounting plate; a swing rod, wherein one end of the swing rod is rotationally mounted on the fixed shaft, and the end, away from the fixed shaft, of the swing rod is connected with the cutter; a power mechanism, which is arranged on the mounting plate and connected with a fan-shaped piece rotationally mounted on the fixed shaft, a meshing structure is arranged between the fan-shaped piece and the swing rod, and the meshing structure can drive the cutter to rotate; a material conveying assembly, which is arranged on the base and connected with the power mechanism, mutual reverse movement between the swing rod and the fan-shaped piece is achieved, and the rotating speed of a cutter is increased through the meshing structure so that better cutting can be conducted.

A gun-type radioactive seed implanter for laryngopharyngeal cancer, comprising a push needle (4), a T-shaped frame (1), a turntable (2) and a conversion rod (3), wherein the bottom end of the conversion rod (3) is connected to the T-shaped frame (1). The bottom end of the vertical shaft of the profile frame (1) is rotatably connected, the transverse beam of the T-shaped frame (1) is provided with a through hole (11), and the side surface of the push pin (4) is provided with a push pin column (41), The push pin column (41) vertically passes through the push pin column track (13) and is connected to the push pin connecting hole (31) at the top of the conversion rod (3), and a conversion column is provided in the middle section of the conversion rod (3). A connecting hole (32), the turntable (2) is rotatably connected with the vertical axis of the T-shaped frame (1), and a conversion column (241) is installed on the other side of the turntable (2), and the conversion column (241) is connected to the transfer column connection hole (32). Not only can the problem of the push needle (4) being pushed too deep accidentally can be avoided, but also the return speed of the push needle (4) is faster than the push speed, and the efficiency is higher.

The invention discloses a self-adaptive adjustment baby hammock, and relates to the technical field of baby hammocks. Each first vertical supporting column is connected with a displacement limiting assembly, a first motor is mounted in the middle of the upper surface of a transverse mounting plate, a transverse rotating shaft rod is rotationally connected to the middle of each transverse supporting column, and a swing assembly is arranged between the tail end of an output shaft of the first motor and one end face of the transverse rotating shaft rod. The first motor is controlled by the controller to operate, the baby hammock is controlled by the controller to swing left and right, manual swing is not needed, and the workload of parents is relieved. The controller can analyze the change of the weight of a baby through the four pressure sensors, then the controller drives a second motor to operate, the height of a sliding block is adjusted, then the height of a first infrared sensor is adjusted, the swing amplitude of the baby hammock is changed, and the baby hammock can follow the change of the weight of the baby in the growth period. The swing amplitude of the baby hammock is automatically adjusted, and the adaptability is high.

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 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 provides a support device for welding and assembling fitness equipment, which relates to the technical field of fitness equipment welding and assembling. The round tube workpiece with the fixed component rotates and rolls, so that the worker does not need to move when welding the workpiece, which is convenient and flexible, and the swing component can drive the welding rod to swing automatically, so that the worker does not need to manually control the swing of the welding torch, which further simplifies the round tube workpiece of fitness equipment. The work flow during welding and assembly greatly reduces the labor intensity of workers, and solves the problem that the existing welding device requires workers to constantly move around the circular tube to weld, which is troublesome, and the need to manually swing the welding torch during welding is extremely labor-intensive. The problem.

The invention relates to the technical field of watch detection, and discloses a waterproof performance detection device for pocket watches, which includes a bottom plate and a bracket, a container is placed above the bottom plate, a movable rod is connected to the bracket, and a hanging rod is connected to the lower end of the movable rod. A pocket watch is connected to the rod, and a collar is sleeved on the outside of the bracelet of the pocket watch. The right side of the collar is connected to a moving rod, and the right end of the moving rod is connected to a connecting sleeve. The connecting sleeve is sleeved in the middle of the arc bow, and the upper end of the arc bow is fixedly connected There is an upper screw block, and the lower end of the arc bow is fixedly connected with a lower screw block, and both the upper screw block and the lower screw sleeve are connected on the rotating shaft. The waterproof performance testing device for pocket watches can change the time that the pocket watch is submerged in water during the movement cycle of moving the rod, and can record and observe the times of pocket watch submersion without deliberate artificial statistics, and has the ability to control the unit time Immersion time, and the advantage of being easy to control the number of immersions.

The invention provides an evaporation type air conditioner with swing padding. The evaporation type air conditioner comprises an air conditioner shell, a swing type padding device is arranged at the inner center of the air conditioner shell and comprises the padding and a swing type mechanical device, the padding is fixed in the swing type mechanical device, a spraying row and a water fender are sequentially arranged above the padding, an exhaust outlet is formed in the top wall, corresponding to the water fender, of the air conditioner shell, a fan is arranged in the exhaust outlet, a water tank is arranged under the padding, an air duct is arranged between the padding and the water tank, and the water tank is connected with the spraying row through a water supply pipe. According to the evaporation type air conditioner with the swing padding, a connecting rod swing mechanical structure and the evaporation cooling padding are combined, swing of the padding in the space is achieved, and the cooling and dust removing effect of a wet curtain is improved.

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 a bionic fish propulsion device, which comprises a base plate, the base plate is provided with a deflector plate and a support column, the top of the support column is provided with a concave guide rail block, the concave guide rail block is provided with a slide groove, and the concave clamp rod passes through the The slider is slidably installed in the chute of the concave guide rail block. The concave clamping rod is equipped with an imitation fishtail elastic plate. There is a first V-shaped elastic support plate and a second V-shaped elastic support plate between the two imitation fishtail elastic plates. Two driving devices are installed on the bottom plate. The push rods of the two driving devices are hinged to the corresponding concave clamping rods. . The bionic fish propulsion device of the present invention utilizes the passive staggered propulsion deformation of the intersecting imitation fishtail elastic plates to realize the approximate fishtail swimming posture and can exhibit excellent hydrodynamic characteristics; driven by double imitation water servo motors, multi-frequency can be realized Propulsion, stepless steering.

The invention provides a tooth-lifting mechanism with adjustable height, comprising a main shaft, a tooth-lifting shaft, a tooth frame, a feeding dog, a first tooth-lifting transmission component connected between the main shaft and the tooth-lifting shaft, and a tooth-lifting shaft connected to the tooth-lifting shaft. The second tooth lift transmission assembly, the adjustment drive assembly, and the adjustment operation part between the tooth frame and the tooth frame, the first tooth lift transmission assembly includes a tooth lift eccentric fixed on the main shaft, a first tooth lift link, and a second tooth lift A connecting rod, and a tooth-lifting crank fixed on the tooth-lifting shaft, one end of the first tooth-lifting link is rotatably sleeved on the outer periphery of the tooth-lifting eccentric, the other end is hinged with one end of the second tooth-lifting link, the second The other end of the tooth-lifting link is hinged with the tooth-lifting crank, and the adjustment operation part acts on the first tooth-lifting transmission assembly through the adjustment drive assembly to change the position of the hinge point of the first tooth-lifting link and the second tooth-lifting link, Thereby, the transmission efficiency between the tooth-lifting eccentric wheel and the tooth-lifting shaft is changed, the height of the tooth-lifting is adjusted, and the versatility of the sewing machine is improved.

The invention discloses a function curve drawing instrument for classroom teaching. The function curve drawing instrument comprises a main frame, bases, a rocking rod, a pen placing device, an amplitude adjustment device, a frequency adjustment device, an objective table, a slideway and a sliding plate. When the function curve drawing structure is in use, the rocking rod is rocked manually to transmit power to the frequency adjustment device through a corresponding shaft; the transmission ratio is changed through the frequency adjustment device, and the power is transmitted onto the objective table and the amplitude adjustment device through corresponding shafts, gears and bevel gears; through two corresponding gears on the objective table, the power on the objective table is transmitted onto gear racks under the sliding plate, so as to achieve transversely displacement of a pen in the direction of the gear racks; according to the crank shaft sliding block principle, the power on the amplitude adjustment device is transmitted to the pen placing device, so as to achieve vertical swing of the pen in the direction perpendicular to the gear racks. The function curve drawing instrument adopts a crank shaft sliding block, so that the crank shaft length can be changed when the pen is swung, that is, the swing amplitude of the pen is changed and the oscillation of a function is obtained; through the frequency adjustment device, the transmission ratio between two displacements is changed, that is, the to-and-fro swing speed of the pen can be changed and the frequency of the function can be adjusted.