44 results about "Scissors mechanism" patented technology

A portable folding pulling cart includes a pulling cart frame. The pulling cart frame includes a folding frame and a wheel mechanism configured to be mounted on the folding frame. The folding frame includes two first scissor mechanisms arranged at intervals in a left-and-right direction and two second scissor mechanisms arranged at intervals in a front-and-rear direction. Each of the two first scissor mechanisms includes at least two first scissor units, and each of the two second scissor mechanisms includes at least one second scissor unit. An upper part of one of connecting rods of adjacent two first scissor units is bent. The upper ends of the adjacent two first scissor units are respectively pivotally connected to two upper pivoting points, and the lower ends of the adjacent two first scissor units of the at least two first scissor units are respectively pivotally connected to two lower pivoting points.

This invention discloses a scissor device for a glove machine, comprising a scissor mechanism, a thread-hooking mechanism, a linear motion guiding mechanism composed of a linear guide rail and a slider, and a motion driving mechanism connected to the slider. The scissor mechanism includes a moving blade and a stationary blade forming the scissors, and a moving blade driving mechanism. The stationary blade is fixedly installed relative to the slider. The linear guide rail is supported by a bracket and installed above the needle plate of the glove machine. The thread-hooking mechanism includes at least two thread-hooking arms, at least one thread-clamping arm, and a thread-hooking and thread-clamping driving mechanism. The front end of the thread-hooking arm is provided with a thread hook, and the front end of the thread-clamping arm is provided with a thread-clamping part that cooperates with the thread hook. The rear ends of all the thread-hooking arms and the rear ends of the thread-clamping arms are fixedly connected. Thread-hooking arms are respectively provided on both sides of the scissor mechanism. The moving blade driving mechanism and the thread-hooking and thread-clamping driving mechanism are connected using the same power mechanism. This invention solves the problem of existing glove machines leaving thread ends on the outer surface of the glove, and realizes that the left thread ends are located on the inner surface of the glove, simplifying the structure.

The application discloses a strawberry picking end effector and a working method thereof. The effector comprises a grabbing mechanism, an electric scissors mechanism and a controller. The electric scissors mechanism comprises a scissors frame, a micro electric push rod and a scissors connecting rod. The scissors frame comprises two symmetrically arranged X-shaped cross rods. The two ends of the same side of the two X-shaped cross rods are connected by one scissors connecting rod. The two ends of the same side of the two scissors connecting rods are connected by one micro electric push rod. The grabbing mechanism is arranged between the two X-shaped cross rods. The grabbing mechanism comprises a mechanical palm and pneumatic fingers. The mechanical palm is installed in the middle of the scissors frame. The pneumatic fingers are arranged on one side of the mechanical palm in a plurality of and circumferential arrangement. The pneumatic fingers are located on one side of the cutting part of the scissors frame. In the application, the pneumatic flexible mechanical fingers are used to grab the strawberries, so that the picking process is beneficial to avoid the mechanical damage of the strawberries.

The utility model belongs to the technical field of food processing equipment, and particularly relates to a cutting device and a shearing machine, the cutting device comprises a conveying channel, a cutter and a shear mechanism, the conveying channel is provided with a first gap and a second gap which are arranged at intervals along the conveying direction, the first gap is located at the upstream of the second gap, and the cutter corresponds to the first gap. The cutter is arranged in the first gap, the axial direction of the cutter is parallel to the conveying direction of the sausage string, part of the cutter can stretch into the first gap, the cutter can rotate around the axial direction of the cutter to cut the part, connected with the rear end of the knot, of the deformation part, the scissor mechanism corresponds to the second gap, the output end of the scissor mechanism stretches into the second gap, and the knot is provided with a cutting-off position used for cutting off of the scissor mechanism. The distance between the cut-off position and the front end of the nodule is 2-5 mm. According to the cutting device, the cutter is matched with the scissors mechanism, so that the conditions of cutter clamping or non-cutting and the like can be avoided, the cutting device is simple in overall structure, waste of raw materials can be reduced, working efficiency can be improved, and the service life can be prolonged.

A holder apparatus comprises a scissor mechanism with opposing scissor members joined by a pivot rod, and a traction mechanism connected to a traction handle. Lifting the handle causes the scissor members to close, gripping planar objects between opposing lower legs. The lower legs are laterally adjustable using slide brackets locked along crossmembers. Retention rails with rubber grips enhance friction. The apparatus enables secure, tool-free handling and transport of stacked planar objects.

The present application relates to a kind of scissors mechanism and cutting thread clamping method, including the main scissors component, the auxiliary scissors component and the scissors part being arranged on guide rail, the main scissors component and the auxiliary scissors component are in the engagement and disengagement cooperation, scissors part is arranged between the main scissors component and the auxiliary scissors component, the main scissors component includes first thread hook and first thread clamp, the auxiliary scissors component includes second thread hook and second thread clamp, when the main scissors component and the auxiliary scissors component hook thread and clamping yarn, drive scissors part to cut yarn.This kind of scissors mechanism of the present application can be held and de-threaded by the first thread hook and the first thread clamp of the first thread hook and the first thread clamp of the present application cooperates to cut yarn with the scissors part, hide the end of thread into the interior of fabric, to realize the processing of terminal yarn, reduce labor cost and many other advantages.

The utility model provides a movable type telescopic device which comprises a frame, the frame is composed of a plurality of supporting frames arranged at intervals, a sliding rail is arranged on the inner side of any supporting frame, and a limiting groove is formed in the sliding rail; the scissor fork type mechanism is arranged among the multiple supporting frames, and the scissor fork type mechanism is movably connected into the sliding rail through a connecting rod set so that the scissor fork type mechanism can be switched between a retracting state and an opening state; at least one end of the connecting rod set is provided with an adjusting structure used for being matched with the limiting groove in a limiting mode. When the adjusting structure is adjusted to enter the limiting groove, the connecting rod set is limited to move relative to the sliding rail. The utility model solves the technical problem that the fireproof effect of the fireproof isolation device is reduced due to the fact that the shear fork type telescopic component of the existing fireproof isolation device is difficult to keep a stable working state and can retract when in use, and the flexible fireproof material is pulled to retract.

This utility model discloses a stacking scissor-type electric screw lifting platform, including a base and a platform. Symmetrical sliding grooves are formed on the upper left side of the base, with a screw rotatably connected inside the grooves. One end of the screw passes through the base and is fixedly connected to a bevel gear. A movable block is set on the outer surface of the screw. A scissor mechanism is set on the upper end of the base, and the platform is set on the upper side of the scissor mechanism. Symmetrical mating grooves are formed on the lower end of the platform, with guide rods installed inside the grooves. Guide blocks are fitted on the outer surface of the guide rods. The upper and lower right ends of the scissor mechanism are fixedly connected to the base and the platform, respectively. This utility model, through the flip-out extension mechanism at both ends of the platform, can flexibly expand the platform area, meet diverse operational needs, and is convenient to store, reducing space occupancy. The counterweight mechanism at the lower end of the platform can dynamically adjust the center of gravity according to actual conditions, preventing equipment swaying or tipping and ensuring operational safety.

This invention relates to the field of steel truss bridge installation technology, and proposes a steel truss bridge construction and installation system for installing steel trusses onto bridge piers. The system includes hoisting equipment, temporary supports, a movable lifting support, a movable adjustment frame, and a limiting bracket. Two rows of bridge piers are constructed across a river, with multiple temporary supports spaced apart between two piers in the same row. A movable lifting support is positioned between the two rows of temporary supports, and its lifting is achieved through a scissor mechanism. Several movable adjustment frames are movably mounted on both sides of the upper end of the movable lifting support. A limiting bracket is located on the upper end of the temporary supports, away from the movable lifting support, and moves up and down through a limiting plate to abut against the steel truss. This invention achieves rapid positioning through the movable lifting support, movable adjustment frame, temporary supports, and limiting bracket, simplifying the positioning operation and improving construction efficiency.

This utility model relates to the technical field of thread trimming devices and discloses an automatic thread trimming device for a winding machine, including a mounting frame, a drive mechanism, a thread guide frame, a horizontal hook, a pushing mechanism, a thread pusher block, and a scissor mechanism. Using the mechanism of this application, the horizontal hook on the thread guide frame effectively prevents the yarn from detaching from the outer end of the thread guide frame when it is rotated by the drive mechanism, thus preventing the failure to move the yarn to the corresponding position. The pushing mechanism is located at the inner end of the thread guide frame, ensuring that the pushing mechanism and the thread pusher block on it rotate with the thread guide frame, guaranteeing that the direction of movement of the pushing mechanism and the thread pusher block remains parallel to the length direction of the thread guide frame. This avoids the problem of the yarn not being accurately moved to the corresponding position in the prior art, ensuring the thread trimming effect.

The invention discloses a multi-folding type folding machine and an operation method thereof, and belongs to the technical field of material folding equipment. The folding machine comprises a rack, and a folding plate mechanism, a clamping jaw mechanism, a scissor mechanism and a pressing mechanism are arranged on the rack. The folding plate mechanism comprises a folding seam, a folding inserting plate driven by an air cylinder and folding turning plates, wherein the two sides of the folding turning plates are driven by a motor through belt transmission. The clamping jaw mechanism is used for supplying materials to the folding seam; the scissors mechanism is used for cutting the materials; and negative pressure adsorption holes are formed in two sides of the folding seam to fix materials. The device can be further provided with a secondary folding mechanism and a folding transfer mechanism, and multi-stage folding and automatic conveying of the materials are achieved. During operation, the clamping jaw mechanisms take materials from the symmetrically-arranged pressing stations on the two sides alternately, and the non-woven fabric can be efficiently folded into high-layer products through pre-folding, primary folding, secondary folding and third folding in the transferring process. The multi-folding device has the advantages of high folding layer number, high efficiency, high automation degree and the like, and is suitable for quick multi-folding processing of flexible sheets such as non-woven fabrics and the like.

The application discloses a truss type hybrid deployable envelope grabbing manipulator, which comprises a scissor mechanism and a driving mechanism for driving the scissor mechanism to deploy or contract, the scissor mechanism comprises a plurality of catching arms, the catching arm comprises a plurality of sequentially hinged scissor assemblies, the scissor assembly at the starting end of the catching arm is connected with the driving mechanism, the scissor assembly comprises a first scissor rod and a second scissor rod, the middle part of the first scissor rod is hinged with the second scissor rod, the starting end or the ending end of the first scissor rod and the second scissor rod is connected with the starting end or the ending end of the first scissor rod and the second scissor rod of the adjacent scissor assembly through a rotating plate, and the rotating plate limits the rotating angle of the first scissor rod or the second scissor rod. The application has the advantages of high rigidity, large folding and unfolding ratio, strong shape adaptability and the like, and can be widely applied to the grabbing of large-scale unknown targets.

A scissor lift table (1) with a base (2) and a working section (3) which is height-adjustable relative to the base (2), with at least one scissor mechanism (4) arranged between the base (2) and the working section (3), which comprises two scissor arms (5, 6) pivotally connected to each other in a cross-like manner, wherein a first end region of a first scissor arm (5) is pivotably mounted on the base (2) and a first end region of a second scissor arm (6) is pivotably mounted on the working section (3) and the respective opposite end regions are guided longitudinally displaceably on the working section (3) and on the base (2), and with a lifting drive device (7), wherein the lifting drive device (7) comprises two threaded spindles (9, 10) arranged parallel to each other, on which at least one spindle nut (11) is arranged, wherein the spindles (9, 10) can be driven together by a drive, so that the spindle nuts (11) relative to the spindles (9,10) are adjustable in the axial direction, wherein the spindle nuts (11) are mounted in a bearing housing (13) in a rotationally fixed manner, and wherein at least one engagement element is provided which is force-transmittingly coupled to at least one spindle nut (11) and force-transmittingly connected to a linear drive means which has a substantially horizontal section and a section extending in the stroke direction of the working part (3) between the base (2) and the working part (3) and is supported at least at one end on the base (2) and / or on the working part (3), such that an axial adjustment of the spindle nuts (11) causes a displacement of the engagement element relative to the spindles (9, 10) and thereby a change in the shear angle and a height adjustment of the working part (3).

The application discloses a triangular prism space stretching arm combined with Sarrus mechanism and scissors mechanism, belongs to the field of aerospace, and is characterized in that the whole stretching wall is composed of longitudinally stacked multiple unfolding units and is in the form of a regular triangular prism in the unfolded state. The planar scissors units are combined in the layout of a space triangular prism and are arranged on the three side surfaces of each unfolding unit in the form of a triangular prism, so that the bending resistance of the single planar scissors unit when bearing lateral force is avoided. The end portions of the scissors units are connected by sliding rails, so that the bending strength of the stretching arm is improved. Meanwhile, two longitudinally arranged Sarrus connecting rods are added to the three edges of the unfolding unit, and the transmission angle of the longitudinally arranged Sarrus connecting rods is 0, so that the stretching arm end is locked and the longitudinal bearing capacity of the whole stretching arm is improved. The stretching arm has the characteristics of high unfolding / folding ratio, high longitudinal bearing capacity, relatively simple structure and synchronous unfolding / folding.

The application discloses a high folding and unfolding ratio annular reflector antenna folding and unfolding mechanism, which comprises an annular scissor mechanism, a center unfolding and folding mechanism, a radial support rod, an annular slide rail and a driving rope. One end of the radial support rod is connected with a base of the center unfolding and folding mechanism, and the other end is connected with the annular scissor mechanism. The radial support rod is first stretched and locked. One end of the driving rope is fixed with the annular scissor mechanism, and the other end is fixed with the annular slide rail. The annular slide rail is fixed with the center unfolding and folding mechanism. The center unfolding and folding mechanism is unfolded, and the driving rope is pulled. Under the action of the driving rope, the annular scissor mechanism can be unfolded from one piece to a larger area. The high folding and unfolding ratio rigid annular reflector antenna folding and unfolding mechanism can ensure that the antenna reflector has a larger area after being unfolded and has a smaller volume when being folded.

A lift assembly having a base, a platform moveable relative to the base between a raised position and a lowered position, and a scissor mechanism coupled to the base and to the platform to move the platform relative to the base. The scissor mechanism includes a first arm, a second arm, a third arm, and a fourth arm supported by the base and extending toward the platform. The first and second arms, as well as the third and fourth arms, are pivotable relative to one another to define a pair of scissor arms to assist the platform in moving between the raised position and the lowered position. A drive mechanism is disposed between the pairs of scissor arms to move the platform between the raised position and the lowered position. The drive mechanism includes a carriage coupled to the base such that the drive mechanism is moveable relative to the base.

The invention provides a load-adjustable X-shaped quasi-zero stiffness pipeline support, which relates to the technical field of pipeline supports, and comprises an upper plate shell, a lower plate shell, a vertical spring, a hinge shaft, a connecting rod, a support, a horizontal spring, a vertical spring adjusting mechanism, a spring pre-tightening module and a gear. The positive / negative stiffness elements are separately arranged, so that mutual interference of traditional parallel springs is avoided; and meanwhile, the problem of clamping stagnation of a lower dead center below static displacement of a traditional shear type mechanism is solved through forced movement constraint. By arranging the threaded rod-sliding block mechanism, continuous bearing load adjustment is achieved.

The present application relates to unmanned underwater vehicle deployment and recovery technology field, provide a kind of underwater unmanned vehicle deployment and recovery device based on rotary scissor mechanism, wherein the deployment and recovery device includes buoyancy cylinder, frame, scissor mechanism, docking cone cylinder, docking guide assembly, rotating mechanism, electric cylinder, rotary drive assembly, control assembly;The buoyancy cylinder is at least two, fixedly connected on frame;Two ends of the rotating mechanism are rotatably installed on frame;The control assembly is used to realize the control of the working process of the deployment and recovery device.Simultaneously, the present application also provides a kind of deployment and recovery method of underwater unmanned vehicle.Through the present application, the deployment and recovery operation of underwater vehicle can be automatically completed, the rapidity and mobility of deployment and recovery are improved;Without complex deployment equipment and professional technical personnel, cost can be reduced;The influence of environmental factors on deployment and recovery can be reduced, various underwater complex working condition requirements are met, and the safety of deployment and recovery is improved.

The cutting mechanism comprises a mounting plate, and a shearing mechanism is arranged on the upper portion of the front end of the mounting plate. A clamping mechanism is arranged at the lower part of the front end of the mounting plate and corresponds to the shearing mechanism; a lifting adjusting mechanism is arranged at the rear end of the mounting plate; the shearing mechanism comprises a first air cylinder arranged at the rear end of the mounting plate and a plurality of shear mechanisms arranged at the front end of the mounting plate; the rear ends of the scissor mechanisms are connected with a linkage mechanism together. The telescopic end of the first air cylinder is connected with the linkage mechanism. Branches of rootstocks and scions can be cut in batches, and consistency of cutting quality is guaranteed.

A telescopic device and a vehicle. The telescopic device (10) includes: a first mounting assembly (100); a second mounting assembly (200); a scissor mechanism (300), the first mounting assembly (100) and the second mounting assembly (200) being provided at opposite sides of the scissor mechanism (300), and the scissor mechanism (300) being drivingly connected to the first mounting assembly (100) and the second mounting assembly (200) to make the first mounting assembly (100) and the second mounting assembly (200) approach or move away from each other; and a first supporting mechanism (400), one end of the first supporting mechanism (400) being connected to the scissor mechanism (300), and the other end of the first supporting mechanism (400) is movably connected to the first mounting assembly (100) to support the scissor mechanism (300) in the gravity direction. In the telescopic device, the first supporting mechanism is provided to connect the scissor mechanism and the first mounting assembly, so that the first supporting mechanism provides a supporting force for the scissor mechanism in the gravity direction, thereby reducing the possibility of bending and deformation of the scissor mechanism and the entire telescopic device, and ensuring the normal operation of the telescopic device and prolonging the service life of the telescopic device.

The utility model discloses a portable toolbox for maintenance of mine electromechanical equipment, which belongs to the technical field of maintenance tools for mine equipment and comprises base coamings, folding coamings and an independent driving device, the base coamings are arranged in pairs and are connected through a telescopic base, and the telescopic base is a shear fork mechanism and can be freely unfolded and contracted. The two sides of the telescopic base are provided with the two folding surrounding plates, the folding surrounding plates are hinged to the two base surrounding plates at the same time, the two folding surrounding plates are symmetrically folded inwards, and therefore folding deformation is completed when the telescopic base shrinks. The top of the base surrounding plate is hinged to the folding bottom plate. When the tool box is used, the folding bottom plate is turned downwards to abut against the telescopic base, so that the load capacity of the tool box is increased, when the folding bottom plate is turned upwards, the folding bottom plate can be used as a handle to pull the empty tool box to move, the moving process is achieved by driving the triangular wheel frame through the stepping motor, and the problems that in the prior art, a tool box is poor in portability and not beneficial to work in a mining area are solved.

The utility model relates to the technical field of lifting structures, in particular to a double-guide-rail scissor type large-stroke lifting structure. The double-guide-rail shear-fork type large-stroke lifting structure comprises a fixed bottom plate, double-slide-rail assemblies are arranged on the two sides of the fixed bottom plate, a shear-fork mechanism is arranged between the double-slide-rail assemblies and fixed to the fixed bottom plate, and an element mounting plate used for mounting all monitoring devices is arranged at the upper end of the shear-fork mechanism. And the equipment can be controlled to carry out large-distance lifting along a set direction. A unique double-guide-rail structure is adopted as a whole for fixing, so that transmission is more stable. Through the unique design of the acting force of the electric push cylinder, normal lifting under the load of 100 kg can be achieved, the starting angle and length of the shear fork rod are simulated through a three-dimensional simulator, and the lifting height which is 6-8 times of the contraction height can be achieved. The large-stroke and large-load scissor fork mechanism with the guiding function is suitable for being applied to various industrial devices and automatic devices.

The present application relates to the technical field of elevator, specifically is a kind of lifting mechanism of hydraulic elevator, including two groups of left-right symmetrical arrangement scissor mechanism, two groups of scissor mechanism upper portion are provided with lifting platform through connecting mechanism, two groups of scissor mechanism lower portion are provided with two front and rear symmetrical arrangement base strip through sliding mechanism, the present application uses sliding mechanism to drive two base plates to be far away from each other and close to each other by two groups of scissor mechanism, then cooperate drive assembly to drive lifting platform to be moved downward to between two groups of scissor mechanism by connecting piece, so that lifting platform can be lowest to ground in the case where not digging bottom pit, reduce the installation environment demand of hydraulic scissor type elevator, the present application uses two groups of scissor mechanism to drive two base plates to be close to each other and finally rest on the lower portion of lifting platform when lifting platform jacks up goods, form stable support structure, ensure the stability and security of lifting platform in the process of lifting.

This utility model provides a shearing and breaking drill bit for underground steel strip pipes, belonging to the field of pipeline construction technology. It includes a traction head, a pipe-pulling cap connected to the traction head, and a shell. The shell has two symmetrically arranged cutter slots, and a shear assembly is provided inside the shell. The shear assembly also includes a power mechanism fixedly connected inside the shell. The power mechanism is connected to a push plate, and a connecting plate is hinged to the push plate. The connecting plate is hinged to the shear mechanism, which extends from the cutter slots. The shell has at least two hook blades, and the pipe-pulling cap is connected to the shell through a rotating shaft. The shell also has a connecting head. Under the drive of the traction head, the uncut pipe in front of the traction head will deform and become tangled. The power mechanism drives the push plate, which in turn drives the shear mechanism to cut the pipe in front of the traction head, preventing the tangled pipe from blocking the traction head's advance and smoothly completing the removal of old pipes.

The utility model discloses a scissor mechanism for an SMT (Surface Mount Technology) material receiving machine, which relates to the field of material receiving machines and comprises a mounting frame, a scissor body and a scissor driving assembly, the scissor driving assembly comprises a first sliding rail, a first sliding block, a second sliding rail, a second sliding block and a pushing assembly. The extending directions of the first sliding rail and the second sliding rail are horizontal; the pushing assembly can synchronously push the first sliding block and the second sliding block to move. The mounting frame is fixed on the first sliding block; a movable blade of the scissors is rotatably fixed on the second sliding block; the pushing assembly can continuously push the second sliding block to the end point of the second sliding rail after pushing the first sliding block to the end point of the first sliding rail; in the process, the second sliding block can be driven to push the scissor movable blade to rotate relative to the scissor fixed blade. According to the scissors mechanism for the SMT material receiving machine, the problems that scissors of a material receiving machine in the prior art are tedious to drive and a material belt is prone to being affected are solved, the structure for driving the scissors to move and shear can be optimized, and the influence of the scissors on movement of the material belt is reduced.

The application discloses a needle insertion device for a spinal anesthesia puncture operation and an operation method thereof. The needle insertion device comprises a posture adjusting mechanism and a needle insertion mechanism. Four identical spherical scissors mechanism branches of the posture adjusting mechanism are hinged to a top platform and a base in a parallel form, and the top platform is fixedly connected with the needle insertion mechanism. The posture of a puncture needle can be adjusted through the movement of the spherical scissors mechanism. The needle insertion mechanism comprises a rotating mechanism, a feeding mechanism and a needle adapter. The output of a motor is transmitted to a rack through gear transmission to realize the feeding of the puncture needle. The feeding mechanism adopts a epicyclic gear train to realize the rotation of the puncture needle while feeding. The application improves the simplicity of the posture adjustment of the puncture needle, provides a sustainable rotation, automatic feeding and withdrawal of the needle, realizes the coupling of the feeding and rotation of the puncture needle, reduces the driving freedom, and the mechanism is light in weight, thereby reducing the flexure of the needle in the tissue to improve the puncture accuracy.

The utility model belongs to sintering operation equipment maintenance technical field relates to a kind of special tool of sintering operation area belt carrier roller quick replacement, first adjusting nut and second adjusting nut are respectively threadedly connected in the both ends of bidirectional screw, upper scissor mechanism and lower scissor mechanism are respectively arranged in the upper and lower ends of bidirectional screw, the two scissor lower ends of upper scissor mechanism and the two scissor upper ends of lower scissor mechanism are respectively connected on first adjusting nut and second adjusting nut, the two scissor upper ends of upper scissor mechanism and the two scissor lower ends of lower scissor mechanism are respectively slidably connected in upper sliding groove block and lower sliding groove block by sliding block, the lower sliding groove block is embedded in base, support head is installed in the top of the upper sliding groove block, adjusting handle is installed in the end of the bidirectional screw.The utility model design scientific and reasonable, with the advantages of labour saving, safe and reliable, improve work efficiency, easily realized.