321results about How to "Improve grip" patented technology

The utility model discloses a kind of guava planting frames, it includes support frame, the support frame inside is provided with thread, the support frame upper surface is provided with stand, the stand inboard wall is slidably connected with slider, the stand inside is provided with sliding slot, the sliding slot inboard wall is slidably connected with protruding block and recess block, the protruding block and recess block inside are provided with screw rod, the screw rod upper surface is fixedly connected with knob;Limiting rod, the limiting rod side surface is fixedly connected with support rod, the support rod and limiting rod side surface are fixedly connected with climbing rope, the limiting rod lower surface is fixedly connected with grid plate, the grid plate side surface is fixedly connected with fixed ring.Through the above structure, setting screw rod can control protruding block and recess block lifting, protruding block rises and can push slider, so that guava vine can be hung in slider surface, increase the grip of vine on the surface of planting frame, recess block can pull back slider inside stand when descending, facilitate to remove vine.

The utility model relates to the technical field of municipal engineering and robot technology intersection, especially a kind of self-propelled dredging robot of municipal sewer pipeline inner wall.The utility model provides a kind of self-propelled dredging robot of municipal sewer pipeline inner wall, including frame, track module and electric telescopic rod etc., two track modules are slidably installed in the left and right sides of frame, track module is all arranged obliquely, two electric telescopic rods are installed in the left and right sides of frame, and the telescopic end of electric telescopic rod is connected with the track module that is close to each other.The utility model provides walking power source by track module, significantly enhances the passing capacity of equipment whole, so that it can adapt to a variety of complex terrain environment in pipeline, simultaneously, under the assistance of supporting wheel and electric push rod, ensure that track is always close to inner wall, improve grip, and then effectively improve the operating stability and operation reliability of equipment.

The utility model discloses a flat plate type chassis of an agricultural unmanned trolley, which belongs to the technical field of agricultural vehicle parts, aims at solving the problem that the loss rate of crops is increased due to the fact that the agricultural vehicle generates large vibration in the driving process, and comprises a chassis frame, and two front wheels are rotatably arranged at the bottom of the chassis frame close to the front end. Two rear wheels are rotatably mounted at the positions, close to the rear end, of the bottom of the chassis frame, the cushioning mechanisms, the transverse cushioning springs and the longitudinal cushioning springs are matched, under the action of the pipe sleeves and the damping rods, vibration borne by the box body can be buffered, the situation that the vibration is transmitted into the storage box from the chassis can be effectively reduced, and the storage box is convenient to use. By means of the technical scheme, the vehicle can run more stably, the stability and safety of crops in the transportation process are improved, the crops can be prevented from being excessively squeezed, collided and damaged in the transportation process, and especially for easily-damaged fruits and vegetables, the shape and quality of the fruits and the vegetables can be kept, and the loss rate is reduced.

The beverage bottle convenient to grasp comprises a bottle body and an inner groove, the top of the bottle body is connected with a bottle opening, the surface of the bottle body is provided with a label face used for being attached with a label, and the surface of the bottle body and the bottom of the label face are annularly provided with a plurality of inwards-sunken grabbing grooves. The inner grooves are formed in the surface of the bottle body, the grabbing grooves are arranged in a V shape, reinforcing strips are arranged on the surface of the bottle body and located in the middles of the grabbing grooves, and the grabbing grooves are annularly formed in the bottom of the label surface of the surface of the bottle body, so that additional grabbing acting points are provided for a user; by means of the structure, fingers can be naturally embedded into the bottle body, the friction force between the hand and the bottle body is increased, the grabbing grooves are arranged in the V shape and further fit with the shapes of the fingers, the grabbing comfort and stability are improved, and a consumer can more easily and firmly grab the beverage bottle when opening the bottle cap for drinking beverages.

The utility model relates to the technical field of explosion-proof interphones, in particular to a portable explosion-proof interphone, which comprises an interphone body and a shell, the lower half part of the interphone body is provided with an arc-shaped side edge, and a positioning component is arranged in the shell; each positioning assembly comprises an arc-shaped rubber plate, a positioning block and a springback rod, the arc-shaped rubber plates are located on the lower half portion of the shell, the springback rods are fixedly arranged in the arc-shaped rubber plates, the positioning blocks are movably connected to the top ends of the springback rods in an inserted mode, and the two positioning assemblies are symmetrically arranged in the shell. A fixing block and an elastic bandage are arranged on the back of the shell, the fixing block is divided into a mounting block and a placing block, the placing block is fixedly arranged on the back of the shell, a mounting groove is formed in the middle of the placing block, and the mounting block is detachably arranged in the mounting groove through magnetic attraction. A user can select one or two to use simultaneously by himself / herself, and position changing, dismounting and mounting are convenient.

The present application relates to the technical field of robot grabbing operation, and more particularly to a multifunctional operation manipulator, comprising: an outer ring mechanism and an inner ring mechanism capable of relative rotation, a driving device for driving the outer ring mechanism and the inner ring mechanism to relatively rotate, and a grabbing device connected to the outer ring mechanism; the grabbing device comprises a fixed base fixed to the outer ring mechanism and a plurality of bendable fingers arranged at equal intervals along the circumference of the fixed base; the bendable fingers comprise an unfolded state, a gathered state and an intermediate state between the unfolded state and the gathered state; the positive and negative amplitude of the rotation angle of the outer ring mechanism and the inner ring mechanism does not exceed the included angle between the line connecting two adjacent bendable fingers and the axis.

The application belongs to the field of material grabbing devices of optical storage equipment, and more particularly to the field of optical disc taking and placing, and discloses an optical disc taking and placing device and method, which comprises a supporting cylinder, a through hole is formed in the bottom of the supporting cylinder, a shaft rod is fixed in the through hole, a permanent magnet claw arm is rotatably connected to the outer side of the shaft rod, the permanent magnet claw arm penetrates through the through hole and is connected with a hook block, a fixed ring is fixed to the bottom of the iron core, a hydraulic mechanism is fixed in the bottom of the supporting cylinder, the hydraulic mechanism penetrates through the fixed ring and is connected with the permanent magnet claw arm, a pressing and fixing mechanism is fixed to the bottom of the supporting cylinder, and the pressing and fixing mechanism is connected with the hydraulic mechanism through a first connecting pipeline. The optical disc taking and placing device controls the action of the three permanent magnet claw arms through the magnetic pole interaction of the permanent magnet and the electromagnet, has the advantages of no friction loss and high control precision compared with the traditional mechanical driving, and solves the reliability problem caused by mechanical wear in the prior art.

The invention discloses an elastic metal wire clamp and a spacer, and relates to the technical field of electric power fittings, and the elastic metal wire clamp comprises a fixed wire clamp main body, a movable wire clamp cover plate and a flexible holding assembly. One end of the movable wire clamp cover plate is hinged with one end of the fixed wire clamp main body to form a pincerlike structure with a jaw; the other end of the fixing wire clamp main body is provided with a through hole for external connection; the number of the flexible holding assemblies is two, and the flexible holding assemblies are fixed to the two sides of the jaw respectively to form wire fixing holes. The flexible holding assembly comprises a wire clamp metal elastic element and a wire protection layer installed on the wire clamp metal elastic element. The wire clamp metal elastic element is fixedly connected with the fixed wire clamp main body or the movable wire clamp cover plate; when the fixed wire clamp main body and the movable wire clamp cover plate fix and lock the wire through the fastener, the wire clamp metal elastic element generates elastic deformation, and elastic buffering is provided for the wire through the wire protection layer. The wire can be allowed to swing slightly to release stress, and stable gripping force is provided to prevent displacement of the wire.

The utility model relates to a kind of for solid medicine's grinding medicine injection device, comprising: vertically arranged cylinder;Cylinder cover, the cylinder cover is with the cylinder with detachable way be connected together by rotating connecting mechanism, the cylinder and the cylinder cover are configured to form grinding chamber for receiving solid medicine in their inside, the top of the grinding chamber is formed with the feed inlet for receiving the solid medicine, and its two sides are formed with the input port for receiving liquid and the output port for discharging liquid respectively;Wherein, the bottom surface of the cylinder cover is configured with grinding assembly, the grinding assembly includes axially arranged needle, the cutting blade group around the needle arrangement and multiple convex structures distributed between the cutting blade group.The utility model also relates to a kind of medicine injection system, to improve grinding efficiency, while realizing grinding-mixing-infusion whole-process closed operation.

This utility model relates to the field of heating spoon technology, and in particular discloses a heating spoon, including a spoon body assembly and a handle assembly used in conjunction with the spoon body assembly. The spoon body assembly includes a spoon head with a blind groove for holding material and a heating element for heating the spoon head. The blind groove for holding material has an inner groove concave surface for contacting the target object to be heated. The handle assembly has a spoon handle with a hollow cavity structure, and a control module electrically connected to the heating element is integrated within the hollow cavity structure. This heating spoon achieves reasonable division of core functions. The spoon body assembly focuses on material holding and heating, while the handle assembly integrates control functions, avoiding component interference and facilitating use. The inner groove concave surface of the blind groove for holding material makes close contact with the target object to be heated, improving the heat transfer efficiency of the heating element. The hollow cavity spoon handle can protect the control module and also reduce heat conduction, preventing burns to the hands, thus combining practicality and safety.

The utility model discloses a kind of anti-lodging devices for rice seedling, it is related to rice seedling technical field, including main rod and insertion rod, wherein, two vertical depositing grooves are set up on main rod, a group of equidistance T-shaped sliding slots are set up on the groove wall of each depositing groove, sliding strip is placed in each depositing groove, the middle part of insertion rod is fixed with baffle disc, four ring type arrays of insertion slot are set up on baffle disc, guide rail is fixed in the slot opening of each insertion slot, each guide rail is fixed with sleeve ring, each sleeve ring is movably sleeved with outer expansion rod, the face of sliding strip towards T-shaped sliding slot is fixed with a group of equidistance T-shaped clamping blocks, and elastic net can limit rice plant in safety range in time, effectively prevent lodging, provide sustained, efficient support protection for normal growth of rice, significantly improve the anti-lodging capacity of rice under adverse weather, guarantee rice yield.

This invention discloses a valve core ball grinding processing device for ball valves, specifically relating to the field of grinding technology. It includes a support platform, a housing disposed on the upper part of the support platform, a material handling structure on the top wall of the inner cavity of the housing, and a valve core grinding structure on the bottom wall of the inner cavity. This invention utilizes the driving action of a material handling drive to grip a material handling follower and feed it into a grinding component. A rack drives the grinding component to rotate repeatedly, during which the valve core ball is fixed by a valve core limiting component, thereby achieving the grinding of the valve core ball. After grinding, the material handling drive and follower remove the valve core ball from the grinding component and feed it into a discharge hopper on the rear side. Simultaneously, a new valve core ball is fed from the material handling tray into the grinding component, achieving continuous processing, reducing contact between operators and the valve core ball, grinding fluid, and grinding equipment, and reducing the occurrence of safety accidents.

The utility model relates to the technical field of conical cement poles, in particular to a conical cement pole with an anti-collision structure at the bottom, which comprises a cement pole main body, a fixing component and an anti-collision component, the fixing component is provided with fixing thorns and is additionally provided with a rotating block, a connecting plate, a fixing hook and the like, and when a driving component is used for operation, the rotating block can rotate in a rotating groove; the fixing hooks can go deep into the ground, the fixing hooks and the fixing thorns act together, compared with an existing single fixing thorn, larger road holding force can be provided, the cement pole can be effectively prevented from being knocked down or shifted easily through the multiple fixing points and the larger road holding force when the cement pole is subjected to external force such as automobile collision, and the stability of the cement pole is improved; therefore, it is guaranteed that the anti-collision assembly can play an anti-collision role more effectively, the overall anti-collision efficiency is improved, the mounting ring is arranged on the concrete pole body in a sliding mode, and the position of the fixing assembly can be adjusted according to actual requirements.

The utility model provides an outdoor wind -resistant tent, including tent body, fills water ballast sac, fills water ballast sac setting at the bottom of tent body outside, and fills water ballast sac with tent between is provided with detachable connecting mechanism, fills water ballast sac includes sac body, is provided with fills water mouth on the sac body, and the seal cover is detachably connected on fills water mouth, one end of sac body is provided with pressure relief protection device, in the utility model, fills water mouth to fill water in water ballast sac, fills water ballast sac can significantly increase the overall weight of tent after filling water, and the pulling force of strong wind to tent is offset through the gravity effect of water ballast sac, avoids the tent to be blown away by strong wind when being idle, reduces the equipment damage and environmental safety risk. Fills water ballast sac distribution in the bottom of tent outside, can form the stable support surface of horizontal direction, forms the higher grip between tent and bottom surface through water ballast sac, and the tent is not prone to lateral transverse when the tent is subjected to crosswind effect.

The application is suitable for the technical field of cleaning equipment, and provides a tire, a walking wheel, a cleaning equipment and a cleaning system. The tire is used for at least the cleaning equipment. A plurality of protruding parts are arranged on the outer peripheral side wall of the tire. The plurality of protruding parts are arranged at intervals along the circumferential direction of the tire. At least one side of the tire in the axial direction is concavely provided with a blind groove structure. The number of the blind groove structures is the same as that of the protruding parts and is arranged one by one. Any one of the blind groove structures comprises at least two hollowed-out grooves arranged along the circumferential direction of the tire. The tire provided by the application has the advantage of good walking stability.

This utility model relates to the field of robotics technology and discloses a humanoid robot with a stabilizing mechanism. The humanoid robot with a stabilizing mechanism includes a rectangular torso, on which a movable mechanism is provided. The movable mechanism includes an asynchronous motor, which is fixedly mounted at the top of the rectangular torso. A mechanical head is fixedly mounted at the output end of the asynchronous motor, and an electronic eye is fixedly mounted at the top of the mechanical head. To achieve the robot's mobility and ensure its standing stability, this humanoid robot with a stabilizing mechanism incorporates a motor and hinge block assembly, a hinged installation of mechanical legs and a U-shaped block, a fixed connection between the mechanical legs and a support plate, and a motor driving the hinge block to rotate, thereby causing the mechanical legs to swing. This enables the robot to walk. Simultaneously, the support plate increases the contact area with the ground, and combined with the support of the mechanical legs, achieves stable movement and prevents the robot from tipping over.

The utility model belongs to tire technical field, concretely relates to a kind of non-pneumatic tire buffer support and the non-pneumatic tire prepared by it. The buffer support is sequentially support outer ring, support spoke piece, support inner ring along tire ground side to inside, its characterized in that, the support spoke piece is located between support outer ring and support inner ring, support spoke piece is evenly distributed in radial along circumference, support spoke piece is in the shape of truncated cone, support spoke piece cross section gradually decreases from tire inside to outside, one end of section is fixedly connected with support inner ring, one end of section is fixedly connected with support outer ring. The non-pneumatic tire has the same support ability and buffering performance as pneumatic tire, completely solves the problem of tire burst of pneumatic tire, avoids traffic accident.

The utility model discloses a material clamping device for stamping part production, which comprises a workbench, one side of the workbench is provided with a first bevel gear through a rotating mechanism, the surface of the first bevel gear is meshed with a second bevel gear, the inner wall of the second bevel gear is fixedly provided with a rotating rod, and the rotating rod is fixedly connected with the workbench. A third bevel gear is fixedly installed at one end of the rotating rod, and a fourth bevel gear is installed on the surface of the third bevel gear in an engaged mode. The rotating mechanism drives two sets of first bevel gears to rotate, the first bevel gears drive four sets of second bevel gears to rotate, the second bevel gears drive four sets of rotating rods to rotate, the rotating rods drive four sets of third bevel gears to rotate, and the third bevel gears drive four sets of fourth bevel gears to rotate. The four sets of clamping plates can be driven to descend through the four sets of lifting mechanisms, stamping parts can be clamped, the four sets of clamping plates can be adjusted to descend at the same time, the stamping parts can be clamped conveniently, and the clamping plates do not need to be adjusted one by one.

The utility model discloses a tomato planting climbing frame, and relates to the technical field of climbing frames. The climbing device comprises three climbing rods, two adjusting rods are fixedly installed on the outer sides of the climbing rods, a plurality of trapezoidal adjusting clamping grooves are formed in one sides of the adjusting rods, telescopic grooves are formed in the bottoms of the climbing rods, and telescopic rods are movably installed in the telescopic grooves. The bottom of the telescopic rod is provided with a spinning type expanding claw anchoring assembly used for improving stability and wind resistance, by arranging the climbing rod, vertically upward climbing attachment is provided for tomato plants, the weight and pulling force in the plant growth process are borne, and the climbing rod is a basic framework of the whole planting climbing frame; according to the spinning type expanding claw anchoring assembly, through cooperation of a threaded sleeve, a movable ring, a movable claw and other components, when the threaded sleeve is rotated, the movable claw is driven to expand towards the periphery and be inserted into soil, the contact area and friction force between the movable claw and the soil are increased, the stability and wind resistance of the climbing frame are remarkably improved, the frame body is prevented from inclining and collapsing, and safe growth of plants is protected.

This application provides an electric toothbrush, including a housing, a mounting bracket, a motor, a display screen, and a first buffer: the housing has a receiving cavity and a window communicating with the receiving cavity; the mounting bracket is disposed within the receiving cavity; the motor is disposed within the receiving cavity and mounted on the mounting bracket; the display screen is mounted on the side of the mounting bracket facing the inner surface of the housing, and the opposite sides of the display screen are respectively positioned opposite the motor and the window; the first buffer is sandwiched between the display screen and the inner surface of the housing to buffer the vibration of the display screen relative to the housing, and / or, sandwiched between the display screen and the mounting bracket to reduce the vibration transmitted from the motor to the display screen through the mounting bracket, thereby protecting the display screen through shock absorption and improving the stability of the display screen on the mounting bracket and the display stability during display.

This utility model discloses a rapid demolding device for non-ferrous metal casting molds, relating to the technical field of demolding devices. It includes a base plate and a first adsorption assembly. The base plate has a bracket fixed to its upper left end, a fourth electric telescopic rod mounted on the upper side of the bracket, and a fixing assembly mounted on the upper side of the base plate. The first adsorption assembly includes a fixing frame, a connecting barrel, a vacuum pump, a fixing pipe, a first suction cup, and a vacuum pipe. The telescopic arm of the fourth electric telescopic rod is fixed to the upper side of the fixing frame. The connecting barrel is fixed to the lower side of the fixing frame. A vacuum pump is mounted on the upper end of the connecting barrel, and a vacuum pipe is fixed inside the vacuum pump's suction port. An air outlet is opened at the upper end of the connecting barrel, and the vacuum pipe is fixed inside the air outlet. An opening is opened at the lower end of the connecting barrel, enabling convenient demolding and avoiding safety hazards during demolding.

The utility model relates to the technical field of locomotive handrails, and discloses a locomotive handrail, which comprises a flange plate, an elbow pipe and a handrail pipe, and is characterized in that at least one pin hole I radially penetrating through a central hole of the flange plate is formed in the peripheral surface of the flange plate; mounting holes which are annularly distributed by taking the center of the flange plate as a circle center are axially formed; the elbow pipe is provided with a first end and a second end, the first end is a sleeve end connected with the center hole of the flange plate in an inserted mode, and the sleeve end is provided with a second pin hole corresponding to the first pin hole; the elbow pipe further comprises anti-disengaging pins, the anti-disengaging pins with the corresponding number are sequentially inserted into the first pin holes and the second pin holes, the outer ends of the first pin holes are welded and sealed, and connection of the elbow pipe and the flange plate is achieved. According to the scheme, a pin connection mode is adopted to replace a traditional rigid welding mode, the risk that fatigue cracks are prone to being caused by the welding position and rapidly expand is eliminated, the structural strength of the handrail is improved, the service life of the handrail is prolonged, and the situation that crew members are injured due to crack damage of the handrail and the operation efficiency of a locomotive is affected by handrail maintenance can be avoided.

The utility model discloses a bottom structure, including bottom, drive mechanism, elevating system and controller, drive mechanism rotatablely set up in the bottom center of bottom, and the pivot vertical setting, be equipped with the limiting piece between bottom and drive mechanism, and limiting piece is suitable for the rotation angle of drive mechanism is limited, elevating system is at least two, and symmetrical distribution is in the front and back two sides of drive mechanism, elevating system liftably sets up in the bottom of bottom, the controller is suitable for when controlling drive mechanism forward, the elevating system of control located drive mechanism rear is contacted with ground simultaneously, the controller is also suitable for when controlling drive mechanism reverses, and the elevating system of control located drive mechanism front side is contacted with ground. The utility model discloses the cooperation between drive mechanism and elevating system to improve the grip between bottom structure and ground, and then prevent the situation that bottom structure appears to slip, improve safety performance.

The application discloses a tire for all-terrain ATV, comprising a tire body, a tire tread of the tire body is composed of side grooves and middle grooves, the side grooves are composed of first block rings, the middle grooves comprise main grooves and main side grooves, the main side grooves are arranged on both sides of the main grooves, the main grooves are gear-shaped annular patterns connected head to tail, the main side grooves are composed of second block rings, equal intervals are formed between the side grooves and the main side grooves and between the main side grooves and the main grooves, first openings are formed at groove corners of the main grooves, and prismatic blocks are formed at the first openings, so that the tire has improved ground adhesion, especially excellent climbing ability, the prismatic blocks arranged at the first openings play a supporting role of the tire tread and the ground during driving, the tire has improved puncture resistance, and has certain aesthetic property.

This utility model proposes a low-profile, lightweight truck tire, belonging to the technical field of lightweight truck tires. It includes: side longitudinal grooves, located on both sides of the tire tread and close to the shoulder, forming a straight line structure extending continuously along the circumference of the tire tread; a central longitudinal groove, located between adjacent side longitudinal grooves, forming a zigzag structure extending continuously along the circumference of the tire tread; and first steel sheets, forming a straight line structure, perpendicularly connected to both sides of the side longitudinal grooves, with 4-5 first steel sheets on one side of each side longitudinal groove within each tread pitch along the circumference of the tire tread. This utility model solves the technical problem of existing low-profile, lightweight truck tires still failing to balance grip and tire lifespan, featuring good grip and a longer tire life.

The utility model relates to brake control structure technical field, concretely is a kind of circular brake control structure of electric motor car, including connecting sleeve, the one end of connecting sleeve is rotatably arranged hand grip, the one end position of connecting sleeve close hand grip is fixedly connected with connecting head, the connecting head is rotatably connected in the rotating groove of connecting sleeve inner wall opening, by the way that support rod connecting first end surface ratchet is arranged on connecting head, it can be limited to the mode that second end surface ratchet is pushed against first end surface ratchet under the action of spring tension, to facilitate the state of keeping brake when hand leaves hand grip, when hand holds hand grip, finger will press into piston groove the pressure block, so that the pressure of piston groove increases, to jack up piston, by the connecting ring on connecting rod pull second end surface ratchet and first end surface ratchet separation, to release limit, to reach hand automatically limit, press down the purpose of release limit.

The utility model discloses a tool for cleaning accumulated slag at a dedusting flue port of an LF (ladle furnace), which relates to the technical field of auxiliary equipment in the metallurgical industry and comprises a grid support and an operating rod piece, the grid support is used for being detachably and fixedly connected with a slag cleaning port at the dedusting flue port of the LF, and the grid support is provided with a plurality of grids; the cleaning end of the operation rod piece is used for penetrating through a grid and being supported on the edge of the grid, the cleaning end of the operation rod piece is used for being inserted into a gap between a flue wall and accumulated slag so as to clean the accumulated slag, the end, away from the cleaning end, of the operation rod piece is the handle end, the handle end is used for being held by an operator, the structure is simple, use is convenient, and practicability is high. Meanwhile, efficient operation of the dust removal system is guaranteed, the field operation environment is improved, and the health of workers is protected.

The utility model discloses a support for a mobile phone shell in the field of supports, the mobile phone shell support is composed of a connecting piece and a supporting piece, the connecting piece and the supporting piece are connected through a rotating piece, and the supporting piece can freely rotate around the connecting piece to provide multi-angle support for a mobile phone. The supporting piece comprises a bottom plate, a supporting frame and a handheld fixing piece, the bottom plate is hinged to one end of the supporting frame, and the supporting frame can be folded and stored on the end face of the bottom plate; the handheld fixing piece is attracted to the bottom plate through a magnetic attraction assembly and embedded in the middle of the supporting frame, and the two ends of the handheld fixing piece are connected with the bottom plate through connecting belts. When the handheld fixing piece is attached to the bottom plate, the magnetic attraction assembly enables the handheld fixing piece to be stably fixed. And after being separated from the bottom plate, the connecting band forms a bracelet structure, and when a user holds the mobile phone, the hand can pass through the connecting band, so that the mobile phone is effectively prevented from slipping off. During use, the rotating piece and the hinge design are cooperated, so that the angle and direction of the supporting frame can be flexibly adjusted, diversified requirements of users for transverse screen film watching, vertical screen video call and the like are met, and the use flexibility is greatly improved.