173 results about "Rod group" patented technology

The invention provides a scalable novel deformed lamp which comprises a rod group part A, a drive part B and a motive power input part C, wherein the rod group part A is connected with the drive part B through a revolute pair formed by a rod (6) and a support rod (8). A rod (5) and the rod (6) on a rod group (IV) of the rod group part A are respectively connected with a rod (7) and the connections form a parallelogram. The shape of the parallelogram is the same with shapes of the other parallelograms formed on the rod group (IV), the rod (7) and the vertical direction form an included angle, and the shape of the whole lamp can be adjusted through the included angle. The drive part B and the motive power input part C are connected with a coupler (14) through a lead screw. The rod group part A of the lamp is a dimensional circular arc camber, a main body of the lamp is formed by the camber, and a bulb of the lamp can be positioned on each rod piece. Scale deformation of the lamp is divided into two conditions of contraction and unfolding, degrees of the contraction and the unfolding are controlled by time of positive and negative rotating of a drive motor, and the overall shape of the lamp is flowerlike.

The invention discloses a car body collision buffer device, comprising at least one buffering body, at least one base, at least one connecting rod group and at least one ratchet structure. The connecting rod group comprises a plurality of connecting rods, at least one upper slide block and at least one lower slide block, wherein the upper slide block is connected to the buffering body; the lower slide block is connected to the base; the upper slide block is driven by the plurality of connecting rods and can slide between a first position and a second position in a reciprocating manner; the lower slide block is driven by the plurality of connecting rods and can move from a third position to a fourth position; and the lower slide block is located at the third position by the ratchet structure. When the ratchet structure releases the lower slide block, the lower slide block can slide to the fourth position from the third position and can drive the plurality of connecting rods to drive the upper slide block to move to the second position from the first position, and the buffering body is pushed by the upper slide block to move to an unfolding position from a folding position.

The invention discloses a space three-parallel-movement parallel mechanism with a far-erecting single rod. The two ends of the far erecting single rod are hinged with a near-erecting rod and a moving platform; a driven branch chain for restricting three rotary degrees of freedom of the moving platform is connected between a fixed frame and a movable platform. The driven branch chain comprises a moving rod group which is combined with the fixed frame to form a vertical moving pair, and a length equality rod group, of which the two ends are respectively hinged with the moving rod group and the moving platform. The length equality rod group comprises one center rod and at least three length equality side rods all around. The two ends of the center rod are respectively connected with the end of the moving rod group and the moving platform using hook joints, and the two ends of the length equality side rod are respectively connected with the end of the moving rod group and the moving platform using ball joints. The mechanism simplifies the driving branch chain, adds the driven branch chain, and restricts the three rotary degrees of freedom, so that the moving platform only has three-parallel-movement degrees of freedom relative to the fixed frame.

The invention discloses a two degrees of freedom (DOFs) high speed translation motion parallel robot mechanism which is driven by a rotation pair. A base of the parallel robot mechanism is connected with a motion platform which motions in two DOFs through two motion branched chains so as to form a closed structure; each motion branched chain consists of a drive rod, a middle component and a driven rod group which are connected with each other in series; the drive rod is respectively connected with the base and the middle component through the rotation pair; a positioning mechanism is arranged between the middle component and the base. The two DOFs translation motion parallel robot mechanism component which is driven by the rotation pair of the invention does not motion in planes which are fully parallel to or coincident with each other, but forms a space constraint through a hook hinge, thus improving the forcing condition of the component, and ensuring the dynamic rigidity and static rigidity of the mechanism in high speed operation.

The invention relates to a synchronous robot group with single task, comprising a frame (1), two servo motors (2), two or more than two robots (A, B) and an executive component (5). The two servo motors (2) are installed on the frame (1). Every robot comprises a moving platform (A-4, B-4) and two branched chains which are respectively arranged on the two sides of the frame (1). Every branched chain comprises driving rod groups (A-2, B-2) and driven rod groups (A-3, B-3), composing two parallelogram mechanisms. The driving rod group and the driven rod group in the same branched chain are connected. The driven rod groups in the two branched chains are connected with the moving platform in rotary way. Driving rods (A-2-1, B-2-1) of the driving rod groups on the same side of the frame (1) are connected with a same rotation axis (4). The rotation axis (4) is arranged on the frame (1) and is connected with the servo motor on the same side. The moving platforms of manipulators fix the same executive component (5). Matched with a plurality of robots, the synchronous robot group with single task can finish the same work with large work range and large workload.

The invention aims to provide a small track robot based on a connecting rod mechanism. The small track robot comprises a car body, two groups of travelling mechanisms, two groups of connecting mechanisms, a driving motor and a connecting rod motor, wherein the two groups of travelling mechanisms and the two groups of connecting mechanisms are symmetrically arranged at two sides of the car body, the connecting rod motor comprises a first connecting rod motor and a second connecting rod motor, and the driving motor, the first connecting rod motor and the second connecting rod motor are all arranged on the car body. According to the invention, the connecting rod mechanism is introduced into a robot configuration design, a rigid positioning state and positioning precision of a track connecting frame are improved, motor load can be reduced by the connecting rod mechanism, a necessary condition is provided for further reducing the size of the robot, connecting rods are provided with multiple holes, the length of fit of the connecting rods can be adjusted according to the specific topography, the configuration posture and the variation range of the rod group are changed, and 21 robot configuration change states of the robot can be realized. The small track robot has very good topography adaptability.

The invention discloses a line drawing instrument for metal sheets, and relates to the field of machining, particularly to a line drawing instrument for flat plates. The line drawing instrument for the metal sheets is characterized by comprising a pair of locating clamping seats, a screw rod group mounted between the pair of locating clamping seats, a scale ruler mounted between the pair of locating clamping seats, a support body matched with the scale ruler, and a middle line drawing needle and an ordinary line drawing mechanism which are mounted on the support body, wherein the screw rod group comprises a left rotary screw rod and a right rotary screw rod. According to the line drawing instrument, middle lines of the to-be-machined sheets can be automatically located through synchronously moving the locating clamping seats, the ordinary line drawing mechanism is moved to draw straight lines in all positions, only one-time locating is required, the problem that a conventional line drawing instrument is low in line drawing efficiency and low in precision is solved, and middle line locating, ordinary straight line drawing, centering, and the like can be integrated.

The invention provides a two-DOF moving shunt connection mechanism with damping capability, comprising a guideway, a sliding block, two lower sliding supporters, a supporting rod, a rotation pair, a movable platform, a damping device, an end executer, and a basic platform. Two guideways are fixed on the basic platform; the sliding block is fixed on the guideway; the two lower sliding supporters are respectively fixed with corresponding sliding block; the movable platform is connected with the two sliding supporters by a parallelogram mechanism consisting of 8 supporting rods and the rotation pair; the damping device is fixed on the movable platform; the motion and the force transmission of the whole device are implemented by the end executer fixed on the damping device. The invention combines an isosceles triangle two-force member truss rod group, the parallelogram structure and the damping aligning principle, thus leading the final two-DOF moving shunt connection mechanism to have the advantages of high rigidity, good forcing characteristic, high transmission efficiency, simple structure, easy control, high operation precision, low cost and having certain damping capability and aligning capability in the direction vertical to the horizontal.

The invention relates to a two-freedom-degree seat mechanism which can be used for damping the vibration of an engineering vehicle driver, and the two-freedom-degree seat mechanism is characterized in that a seat surface is connected with a movable platform through a main load spring, and two identical branched chains are arranged between the movable platform and a seat base in the longitudinal direction. In each branched chain, one end of a supporting rod is connected with the movable platform through a rotary pair, the other end is connected with a slide block through a rotary pair, and the slide block is connected with the base through a horizontal shock-absorption spring. Meanwhile, the seat surface and the base are supported through crossed rod groups which are respectively arranged on two sides of the seat, each crossed rod group consists of two supporting rods which are crossed through the rotary pair, one end of each supporting rod is connected with a slide block which can slide along a slide rail of the seat surface in the longitudinal direction through the rotary pair, and the other end is connected with a slide block which can slide along the base in the longitudinal direction through the rotary pair. The two-freedom-degree vehicle shock-absorption seat mechanism can realize the shock absorption function in the vertical direction and in the longitudinal direction and has characteristics of simplicity and compactness in structure and reliability in work and promising application prospect.

A circular whole loop tunnel structure test device is disclosed. A symmetric straining self-balance system formed by pull rods and loading beams is used for a loading purpose, and production cost is substantially reduced; by adjusting a position of a screw nut on the pull rod, the test device can be suitable for test loading of a circular whole loop tunnel of all diameter sizes. The circular whole loop tunnel structure test device comprises an annular beam module, a circular whole loop tunnel duct segment, a number of pull rod groups, a number of straining beams, a jack, a sliding support seat A and a sliding support seat B, wherein the annular beam module and the duct segment are two concentric circular structures, the annular beam module is arrange at an inner side while the circular whole loop tunnel duct segment is arranged at an outer side, the circular whole loop tunnel duct segment is placed on the sliding support seat A, the annular beam module is placed on a sliding support seat B, the straining beams are closely attached to the outer side of the duct segment and are uniformly arranged into a cycle along the circular whole loop tunnel duct segment or at other angles, the pull rod groups are connected with the straining beams outside the duct segment and an inner side of the annular beam module, the jack is mounted on the pull rod groups in a penetrated manner at an outer peripheral side, the jack is locked on the outer sides of the straining beams, and the inner side of the annular beam module is fixed.

Asymmetrical three-degree-of-freedom movement coupling mechanism is based on a symmetrical three-degree-of-freedom movement paralleling mechanism and adopts the technical scheme that the coupling mechanism is constructed in the mode that coupling rod groups are added among paralleling mechanismbranched chains. For facilitating adding of the coupling branched chains to connecting rods, a 3-RRUR paralleling mechanism containing more R pairs is used as a basis, appropriate coupling node positions are selected from the coupling branched chains under the situation that the degree of freedom of the mechanism is ensured, and the appropriate coupling rod groups are added to form the symmetrical three-degree-of-freedom movement coupling mechanism. The symmetrical three-degree-of-freedom movement coupling mechanism has the advantages of being large in rigidity, good in carrying capacity, stable in movement and convenient to assemble and maintain, and a new thought is provided for configuration integration of multiple loop coupling mechanisms.

Disclosed is a heavy hammer type ball-hinge rotation balancing table. The hammer type ball-hinge rotation balancing table comprises a balancing table group, a ball-hinge group, a swing table, an electromotor, a small circular arc gear, a pull rod group, a heavy hammer, a cone spring and a thrust bearing, wherein the balancing table group comprises a balancing table and a large circular arc gear, the ball-hinge group and the electromotor are fixed on the swing table, the heavy hammer compels the balancing table to be always perpendicular to the gravity direction through the pull rod group and the ball-hinge group, the electromotor drive the balancing table to rotate through the large circular arc gear and the small circular arc gear, and the cone spring shares pressure from the balancing table and a weight to the ball-hinge group. The hammer type ball-hinge rotation balancing table is simple in structure, and self-balancing, dispenses with a balance control system, can reduce a light ship barbette violently swing along with the ship, improves accuracy rates of a gunner hitting a target, enables a driver to lift up and drop down an aircraft easily on the balancing table, reduces suffer pain degree of a passenger caused by seasickness or carsickness, reduces fatigue strength of the driver, and has wide application prospects on corresponding fields of military equipment and communication and transportation.

A multiple connection rod inserting movement mechanism comprises a front triangular plane (A), a rear triangular plane (B) and three connection rod groups (7) for connecting the two triangular planes (A and B). Each triangular plane comprises three power-driven push rods (1, 2, 3, 4, 5 and 6) and connection members of the power-driven push rods, axes of the three power-driven push rods in each triangular plane form angles of 60 degrees respectively, and each plane looks like an equilateral triangle. The three connection rod groups connect six universal joint pins at corresponding vertexes of the two triangular planes together to form an integrity in a rotating pair mode. Each triangular plane of the multiple connection rod inserted movement mechanism can finish respective extending and contracting through synchronous extending and contracting of the power-driven push rods. One triangular plane is controlled to be expanded and the other one is controlled to be contracted, and through driving of steering engines in the three connection rod groups and two motors on the triangular planes, the contracted triangular plane can penetrate the expanded triangular plane in an inserting mode.

The invention discloses a mussel silking machine, which comprises a feeding device, a material homogenizing device, a silking device and an underframe, wherein the silking device is arranged on the upper part of the underframe and is connected with the feeding device; and the material homogenizing device is arranged on the silking device. The mussel silking machine is characterized in that: manual operation is replaced by mechanical machining, so the production efficiency is improved, pollution caused by artificial operation is reduced, and the investments of labors and financial resources are saved; and silking from coarseness to fineness is realized by a brush group and a steel rod group, so that the silking rate is over 75 percent.

The invention relates to a transplanting machine front-and-back balancing system, which comprises a transplanting machine frame and a central pontoon. The transplanting machine frame is connected with the chassis of the transplanting machine via a lifting mechanism, the lifting mechanism includes a lifting oil cylinder, the central pontoon is in rotary connection with the transplanting machine frame, the front end of the central pontoon is connected with a pulling mechanism, the pulling mechanism is composed of a sensing guy cable and a rigid pulling mechanism directly connected with the central pontoon, the sensing guy cable and the rigid pulling mechanism are connected, and the rigid pulling mechanism is connected with a control valve controlling the oil path of the lifting oil cylinder via a link rod group. The inventive balance system can accurately balance the transplanting machine in the front-and-back direction in time according to traveling conditions so as to accomplish accurate adjustment in transplanting depth and further achieve uniform and stable transplanting effects.

The invention discloses a foldable automatic temperature control optical axis calibrator target, which comprises a target surface, a target box, two foldable brackets and a temperature control box, wherein the target surface is a white canvas substrate coated with a black canvas pattern; a heating wire is buried in the interlayer between the black canvas and the while canvas; and a black area and a white area are respectively provided with a temperature sensing sensor. When in use, the target box is formed by butting two foldable rod groups and fixedly connected with the two foldable brackets which respectively spread out in place; and the heating wire and a lead wire of a temperature sensing device are both connected with the temperature control box. The calibrator target is suitable for parallelism calibration and accuracy test of an external field optical axis of a multi-axis optical system, accuracy test of an optical positioning and direction system or external field target test of a shooting system based on thermal-image collimation. The calibrator target has prominent advantages of simple structure, low cost, convenient carrying and is not restricted by field when in use.

The invention discloses a two-degree-of-freedom space parallel connection robot, which comprises a static platform, a movable platform and three branch chains connected between the static platform and the movable platform. An end effector is arranged on the movable platform, a first driving device and a second driving device are arranged on the static platform, and the three branch chains are all formed by a driving rod and a pair of driven rod groups which are mutually parallel. The driving rods of a first branch chain and a second branch chain are respectively driven by two driving devices for rotation, the second branch chain and a third branch chain are symmetrically arranged on the plane of the first branch chain, a pair of bevel gears are arranged between two driving rods of the second branch chain and the third branch chain, so that power of the first driving device can be transmitted to the third branch chain, and two ends of the three driven rod groups of the three branch chains are respectively hinged to the driving rods and a movable platform sphere. By means of the three spatially arranged movement branch chains, the two-degree-of-freedom space parallel connection robot achieves two dimensional movement of the end effector, solves the problem of insufficient lateral rigidity of a plane mechanism, has the superior feeding direction, and is simple in structure and good in dynamic property.

The invention relates to a one-way self-locking type mechanical hand. The one-way self-locking type mechanical hand comprises a driving assembly used for providing power; a transmitting assembly and a clamping assembly. The transmitting assembly comprises a worm rod, a worm wheel, a first connecting rod and a second connecting rod, the worm rod is fixedly connected with the driving assembly in a linkage mode, the worm wheel meshes with the worm rod, one end of the first connecting rod is hinged to the surface of the worm wheel, and the other end of the first connecting rod is hinged to one end of the second connecting rod; the clamping assembly comprises two clamping sections and a sleeving head, the sleeving head is arranged at the second connecting rod in a sleeving mode, and the second connecting rod is capable of sliding up and down relative to the sleeving head, one ends of the two clamping sections are hinged to the sleeving head, each clamping section includes a clamping rod and an telescopic rod group, wherein one end of the clamping rod is hinged to the sleeving head, and the flexing rod group is capable of stretching and contracting. According to the single way self-locking type mechanical hand, firstly, through the arrangement of the worm wheel and the worm rod, the effects of holding and loosing are achieved, secondly, the worm wheel and the worm rod have the self-locking character, and even if the driving assembly suddenly stops working, the holding effect is not changed.

The invention discloses a hold frame for veterinary therapy. The hold frame comprises a bottom plate and a bracket; and a clamping frame is nested on the inner upper end face of the bottom plate, theclamping frame comprises a horizontal slide groove plate which is horizontally arranged, and the horizontal slide groove plate penetrates a first limiting rod group used for limiting the movement of rear legs of livestock and a second limiting rod group used for limiting the movement of front legs of the livestock. According to the invention, the clamping frame which comprises the horizontal slidegroove plate, a first adjusting wheel, a horizontal rotating shaft, the first limiting rod group and the second limiting rod group is arranged to clamp and limit the legs of livestock. Meanwhile, thedistance between limiting rods can be adjusted to adapt to livestock with different body sizes, and the height of the clamping frame is adjusted through a bidirectional screw rod and a worm gear, sothat the clamping frame has better adaptability; By arranging a clamping plate which is fixedly connected to the clamping frame, the synchronous limiting of the legs and head is realized; and meanwhile, by arranging upper limiting plates which are oppositely arranged and synchronously linked, the limiting and clamping of livestock in multiple directions are realized, and the operation is convenient and fast.

The invention discloses an external combustion engine and a transmission mechanism thereof. The external combustion engine comprises two groups of hot gas components, a transmission mechanism and a crank shaft, wherein each group of the hot gas components comprises a gas cylinder, a heater, a reheater and a cooler; a power piston replacement piston is arranged in the gas cylinder, and a cold cavity and a hot cavity are formed in the gas cylinder; the transmission mechanism comprises a connecting rod group and a swing rod group; the swing rod group comprises a center swing rod and edge swing rods; piston rods are hinged at two ends of the swing rod group respectively; a plane on which the center swing rod is placed and the planes on which the edge swing rods are placed are parallel to each other and coaxial with each other on a pivot shaft; the connecting rod group is surrounded by four connecting rods which are hinged between the pivot shaft and a crank shaft connecting rod neck; the first connecting rod and the second connecting rod are as long as each other and keep complementary angles from 30 to 60 degrees with the center swing rod and the edge swing rods; the third connecting rod and the fourth connecting rod are as long as each other, and the upper ends of the third connecting rod and the fourth connecting rod are hinged with each other; and a heat source heats the heater so that gas in a gas channel is expanded and contracted due to a reciprocating motion between a cold cavity and a hot cavity, and the crank shaft is driven by the transmission mechanism to do a periodic motion and work. The external combustion engine is easy to start and has low cost.

The present invention provides a wheel contracting device of the model airplane which includes a driving unit, a connecting rod group driven by the driving unit and a wheel body unit that is interlinked by the connecting rod group and generates pivoting. The driving unit has one motor and a driving wheel group, a first connecting rod of the connecting rod group is driven by one output wheel of the driving wheel group and can generate pivoting, the wheel body unit has one pivoting part, a swinging part and at least one wheel part that is axially arranged one the swinging part, and one second connecting rod of the connecting rod group is articulated between the articulating part and the swinging part. When the driving unit is actuated the wheel body unit is switched from a wheel contracting position to a rising-and-falling position by the connecting rod group. The present invention uses the driving of the driving unit and the interlocking of the connecting rod group, and causes that the wheel body unit surely oriented at the wheel contracting position and rising-and-falling position to achieve the purpose of safely rising and falling and guaranteeing the safety of the airframe.

The invention provides a sputtering device, which comprises a casing, a plurality of material rod groups for fixing workpieces to be coated, a plurality of first target seats and second target seats for fixing targets, a first driver and a plurality of third driver groups. A cavity is defined by the casing, the plurality of material rod groups are accommodated in the cavity and parallelly arranged to form a second circle, and each material rod group comprises a plurality of material rods which are parallelly arranged to form a first circle. The plurality of the first target seats and the second target seats are arranged in the cavity and respectively arranged inside and outside of the second circle. Each of the third driver groups is connected to a corresponding material rod group so as to drive each material rod in the material rod group to rotate around the central axis of each material rod. The first driver is connected to the plurality of the third driver groups so as to drive the plurality of the material rod groups to rotate around the central axis of the second circle. More material rods can be arranged in the cavity so as to improve coating efficiency.

The invention discloses a chain type multi-grade screw rod hoisting platform. The chain type multi-grade screw rod hoisting platform comprises a chain transmission part, screw rod groups and a platform, wherein the platform is arranged at the output end of one group or a plurality of groups of screw rod groups; the chain transmission part is matched and connected with the output ends of the screw rod groups and the output ends of the screw rod groups are driven to rotate, so that the platform is driven to move up and down; synchronous hoisting of a plurality of grades of screw rods is realized through chain type transmission, and a buffering measure can guarantee that an excessive spiral pair locking force is not generated after each grade of the screw rods is arranged in place, so that the system can be normally hoisted to work; and self locking can be realized at any position through a trapezoid thread pair. The chain type multi-grade screw rod hoisting platform can be applied to low-speed hoisting of various platforms, is compact in structure and has a wide application field and the like. Energy sources can be provided for a motor and hydraulic dividing is not used; and supporting equipment is simple and feasible.

The invention provides an AP 1000 reactor core decoupling control system and control method; the control system comprises an M rod control system connected with a reactor core transfer function model, an AO rod control system, and a decoupling control system connected with the M rod control system and the AO rod control system and further connected with a reactor core model; the reactor core transfer function model feeds back cooling agent average temperature signals and nuclear power signals to the M rod control system and feeds back axial power distribution signals to the AO rod control system; the M rod control system inputs M rod group movement rod positions to the decoupling control system; the AO rod control system inputs AO rod group movement rod positions to the decoupling control system; the decoupling control system inputs the M rod group movement rod positions and the AO rod group movement rod positions, which are compensated, to the reactor core model. The system and the method not only can ensure the response speed of the system, but also can eliminate coupling effects of two rod groups.

A whole body vibration training apparatus able to linearly change its vibration amplitude is composed of a base, a swinging connection-rod group consisting of several swinging connection and arranged on base, a supporting frame on said swinging connection-rod group, a drive mechanism with a motor for driving said swinging connection-rod group and in turn said supporting frame to vibrate at various frequencies, and a vibration amplitude regulator between swinging connection-rod group and base.

The invention discloses a noise monitoring system core for carrier-rocket launch fuel-gas flows. The system includes a near-field noise test array device and a far-field noise test array device. The near-field and far-field noise test array devices both use a carrier-rocket body as a symmetrical center to form n-shaped noise test grid nets. Series and evenly distributed array-type noise test arrays are installed through the n-shaped noise test grid nets, wherein the near-field n-shaped noise test grid net uses the outer edge of a launch platform mesa as the contour and includes vertical-rod groups which are vertically and uniformly distributed and installed on the launch platform mesa and cross-bar groups which are horizontally and evenly distributed and installed on the platform-mesa vertical-rod groups. The far-field n-shaped noise test grid net uses a launch platform and launch-field diversion-trench entrance and exit as reference outline dimensions and includes vertical-rod groups which are vertically and evenly distributed and installed on a launch level ground and cross-bar groups which are horizontally and evenly distributed and installed on the level-ground vertical-rod groups. The near-field n-shaped noise test grid net and the far-field n-shaped noise test grid net are placed to be facing each other and use each other as a reference and complement.

The invention belongs to the technical field of industrial robot application, and discloses a pure mechanical drive type spray painting robot. The pure mechanical drive type spray painting robot comprises a five degree-of-freedom robot and a positive pressure explosion protection system. The five degree-of-freedom robot comprises a fixed base, a rotary base, a rotary driving device, a tail end installation seat, a spray gun, a position adjusting rod group, a posture adjusting rod group and synchronous wheel drive. The position adjusting rod group comprises a servo motor, a big arm, a front arm, a small arm and a small arm pull rod; the posture adjusting rod group comprises an electric sliding table, an electric cylinder fixed seat, a first posture protection rod, a triangle connecting frame, a second posture protection rod and a spring supporting rod; the synchronous wheel drive comprises the servo motor, a synchronous pulley and a synchronous belt; and the positive pressure explosionprotection system comprises an air pump, an air pipe and a sealing shell. A pure mechanical drive scheme is adopted, electrical parts are placed on bottoms of robot bases and branched chains, integralexplosion protection is carried out, the production efficiency is high, the safety performance is high, and automatic spray painting operation can be realized.

The invention relates to an expanding base connected to the second connector of electric device, wherein said base comprises a frame, connecting rod group, force element and the first connector; the frame has a platform with the first open; the electric device is carried on the platform; the frame has the second open outside the platform; the connecting rod group is inside the frame; the force element is at the second open, that connected to one end of connecting rod group; the force element can move along one preset path, to switch the connecting rod group; the first connector is at the first open, that connected to another end of connecting rod; the first connector via connecting rod group can extend or contrast at the first open to connect or detach with the second connector.

The invention discloses a rear suspension five-way connecting rod device for a bicycle, which comprises a frame, a back lower fork group, a first connecting rod group and a second connecting rod group. The frame is provided with a five-way seat which is fixedly connected to a joint between a seat pipe and a lower pipe; an open-groove accommodating groove is formed in the side direction of the five-way seat; the back lower fork group is provided with two symmetrical back lower fork pipes, a five-way pipe and a back iron seat at the back end which are integrally molded; the five-way pipe is accommodated in the accommodating groove; the back lower fork group is provided with a first pivot point and a second pivot point respectively; one end of the first connecting rod group is pivoted on the first pivot point, and the other end of the first connecting rod group is pivoted on the five-way seat; and one end of the second connecting rod group is pivoted on the second pivot point, and the other end of the second connecting rod group is pivoted on the five-way seat. Through the members, the pivot central distance between the center of the five-way pipe and a wheel of the back iron seat is kept unvaried and the situations of chain device loosening and chain sticking due to impact on the back lower fork group can be avoided.

The invention discloses equipment convenient to take out kiwi fruit seeds. The equipment comprises a tank body, wherein a motor is arranged at the upper end of the tank body; an output shaft of the motor extends into the tank body, and is connected with a disk; a plurality of groups of chopping rods are arranged at the lower end of the disk, and a gap is reserved between two adjacent chopping rod groups; a plurality of chopping rods in each group of chopping rods are uniformly distributed along the axis of the disk; a plurality of fixed rods are arranged at the lower end inside the tank body, and each fixed rod is correspondingly positioned between two adjacent chopping rod groups; a feed inlet is formed at the upper end of the tank body; a plurality of through holes are formed on the lower end face inside the tank body; a mesh is arranged below the tank body; a seed collection plate is arranged below the mesh; filtering holes are full distributed on the lower end face of the seed collection plate; a diameter of each through hole of the tank body is greater than a pore diameter of the mesh; the pore diameter of the mesh is grater than a diameter of each filtering hole; and a sedimentation tank is arranged at the lower end of the seed collection plate. The equipment disclosed by the invention is beneficial to popularization and application.