7090 results about "Telescopic cylinder" patented technology

A coaxial cable connector comprises a head and a hollow cylinder. The hollow cylinder comprises a protective cylinder, a tubular shaft, and an elastic cylinder. The tubular shaft comprises a guide hole, a plurality of ladders, a locking flange, and a plurality of hooks. The elastic cylinder comprises a trench and a hook at one end and a locking ring defined by a notch near the other end. A bended metal tube having a stopper is mounted on the protective cylinder. In the coupling process, the coaxial cable inserts into the hollow cylinder. By using a pressure from a tool to break the notch of the elastic cylinder, the locking ring is separable from the elastic ring, and the locking ring shifts forward continuously along an inclined surface of the notch. Since the protective cylinder restrains the locking ring, the connector can couple with the coaxial cable tightly by pressing down the locking ring.

The invention relates to a hoisting derrick specially for coiled tubing equipment. The hoisting derrick comprises a derrick transportation supporting platform, a derrick swinging base, a derrick telescopic boom, a first telescoping cylinder and second telescoping cylinders, which are connected with one another through rotation and articulation; the hoisting derrick is characterized by also comprising an injection head mounting platform, wherein lever arms are arranged on the injection head mounting platform, one ends of the level arms are fixedly connected with the injection head mounting platform, the other ends of the level arms are articulated with the plunger piston ends of the second telescoping cylinders, the cylinder body ends of the second telescoping cylinders are articulated with the derrick telescopic boom, and the level arms and the second telescoping cylinders are arranged in pairs and are arranged on two sides of the derrick telescopic boom respectively. The hoisting derrick has the beneficial effects that the injection head and an oil well can be centered rapidly, the labor intensity of workers is reduced and the mounting cost is reduced.

The invention discloses a device for improving water quality of laminated mixed oxygenated water. The device comprises an elevating cylinder, an aerating chamber, a gas storing chamber, an air releasing pipe, a guide plate, a perforated plate, a micro-pore aerator, a powerless automatic switching device and an anchoring pier, wherein the elevating cylinder is vertically arranged in water; the aerating chamber and the gas storing chamber are formed at the middle position of a reservoir; the micro-pore aerator is arranged at a position close to the bottom of the reservoir; a full-layer mixed oxygenation function and an isothermal layer mixed oxygenation function are integrated organically; and a telescopic cylinder for adjusting the height of the device is arranged between the aerating chamber and the micro-pore aerator, so that the stability of the entire device is improved. Through improvements on a multifunctional water pumping aerator, full-layer mixed oxygenation and isothermal layer mixed oxygenation are performed respectively by using the device for improving water quality of laminated mixed oxygenated water according to the water quality improving requirement, so that the problem of water quality pollution in the reservoir can be solved at lower energy consumption, and the aim of organically unifying two functions, the water quality improving benefit and the economic benefit is fulfilled.

The invention relates to a hydraulic oil distributing and controlling device of a crane hydraulic system, which consists of a first oil inlet and a second oil inlet which are used for communicating with at least two duplex pumps, a first oil outlet and a second oil outlet which are used for supplying oil for a main hoisting motor and an auxiliary hoisting motor as well as a third oil outlet and a fourth oil outlet which are used for supplying oil for a derricking cylinder and a telescopic cylinder; the first oil inlet and the second oil inlet are communicated with the four oil outlets through an oil circuit; control valves are arranged at least on the communicating oil circuits of the first oil inlet and the second oil outlet as well as the third oil outlet and the fourth oil outlet; the control valves are arranged at least on the communicating oil circuits of the second oil inlet and the first oil outlet as well as the second oil outlet and the third oil outlet. The hydraulic oil distributing and controlling device can realize interfluent oil supply of the two duplex pumps so as to improve the operation speed of the corresponding operating condition and operation efficiency, and can use any duplex pump to supply oil respectively to realize a flexible and convenient flow distribution proposal combined by diversified operating conditions.

The invention discloses a two-sided paint spraying device used for building timber spray finishing. The two-sided paint spraying device used for building timber spray finishing comprises a base, the two sides of the upper end of the base are connected with supporting frames, the upper ends of the supporting frames are connected with top plates, and the middles of the top plates are connected with a drive box. The two sides of the lower end of the base are connected with supporting legs, the right end of the left supporting leg is connected with a drive motor, the right end of the drive motor is connected with a drive shaft, and the right end of the drive shaft is connected with a driving gear. The upper end of the driving gear is meshed with a driven gear, the middle of the driven gear is connected with a transmission shaft, the two ends of the transmission shaft are connected with transmission belt wheels, the upper end of each transmission belt wheel is connected with a turnover belt wheel through a belt, and the middle of each transmission belt wheel is connected with a turnover shaft. The inner end of each turnover shaft is connected with a telescopic cylinder, the inner side of each telescopic cylinder is connected with a telescopic shaft, each telescopic shaft is connected with a U-shaped plate, and the upper end and the lower end of each U-shaped plate are separately connected with a clamping device. The two-sided paint spraying device used for building timber spray finishing realizes two-sided spray finishing of building timber; a horizontal paint spraying mode is adopted, and compared with a vertical paint spraying mode, evenness of timber paint spraying is increased.

The invention relates to a towing device for a golf trolley comprising longitudinal resilient linkage means. The linkage comprises a spring, a damper for the resilient portion, the remainder of the linkage being rigid, and means at one end of the linkage for pivotal attachment of the linkage to the bag-carrying part of the trolley. The towing device may be incorporated in the handle of a trolley or may be an accessory attachable to the trolley. The damper may comprise a piston-and-cylinder type damper which may contain air or other gas or oil or other hydraulic fluid. Embodiments using telescopic cylinders are also described. The extent of pivotal movement of the towing device relative to the bag-carrying part of the trolley is restricted by a flexible link or spring. The device may be attached to a belt or other item of clothing on the trunk of a user, and the trolley may have an auxiliary wheel fitted to the bottom of the bag-carrying part. A mechanism for releasably securing the handle against pivotable or telescopic movement is also described.

The invention discloses an end effector of a ball-like fruit picking robot. The end effector comprises a rotating machine assembly, a telescopic cylinder assembly and an arc-shaped finger cutting assembly. The end effector has the following advantages: a rotating machine is utilized to drive four arc-shaped blades to cut the fruit stem in any position between the four arc-shaped blades in a rotating manner via a coupling shaft assembly, thus omitting detection of the position of the fruit stem; a single-rod double-action cylinder drives four arc-shaped fingers to unfold and fold by way of extension and retraction of a piston rod; the space formed when the four arc-shaped fingers are folded is larger than the three-dimensional space of the fruits; the fingers are not contacted with the fruits during picking, thus ensuring that the fingers can rotate relative to the fruits, providing conditions for the arc-shaped blades to cut the fruit stems in a rotating manner and dispensing with complex pressure control for clamping the fruits; and the end effector has a reliable picking mode, low action control difficulty, low cost and strong universality.

The invention discloses a rotary wall board paint spraying bracket. The rotary wall board paint spraying bracket comprises a door fixture, wherein a bearing platform is arranged below a cross beam of the door fixture; a rectangular slideway 1 is machined on the lower surface of the cross beam of the door fixture; a slide rail 1 is arranged inside the rectangular slideway 1; an electric trolley 1 is arranged on the slide rail 1; a telescopic cylinder 1 with a downward telescopic end is arranged on the lower surface of the electric trolley 1; a mounting box is arranged at the telescopic end of the telescopic cylinder 1; a circular through hole is formed in the center of the lower surface of the mounting box; a spray head is embedded into the circular through hole; a controller is arranged on the front surface of the bearing platform; a storage battery is arranged inside the controller; the storage battery is electrically connected with the controller; and the controller is electrically connected with the electric trolley 1, the telescopic cylinder 1, electric trolleys 2, telescopic cylinders 2, rotary motors and clamping claws. The rotary wall board paint spraying bracket has the beneficial effects of simple operation, convenience in use, automatic rotary paint spraying treatment, high working efficiency, high convenience and practicality.

The invention discloses a synchronous dust extraction steel tube piece inner wall polishing device which comprises an outer box and a base. A transverse support is arranged on the right side of the top of the base, a second stretchable cylinder is arranged on the left side of the transverse support, a rotary barrel is rotationally arranged on a vertical support, an eccentric gear is installed at the left end of the rotary barrel, a fixing rod is installed on the left side of the eccentric gear, and a polishing rod is installed at the left end of the fixing rod; and a driven belt wheel on the rotary barrel is connected with a driving belt wheel through a triangular belt, the driving belt wheel is fixedly installed on an output shaft of a driving motor, and the lower end of a piston rod of a first stretchable cylinder on the left side of the outer box and the upper end of a piston rod of a third stretchable cylinder are provided with an upper clamping plate and a lower clamping plate corresponding. By means of the synchronous dust extraction steel tube piece inner wall polishing device, the steel tube polishing time is greatly saved, steel tube polishing is more sufficient, the steel tube polishing quality and working efficiency are improved, synchronous dust extraction during polishing is achieved, the clean and tidy working environment is kept, and the health of workers is facilitated.

The present invention provides parallel, cable based robotic manipulators, for use in different applications such as ultra high-speed robots or positioning devices with between three to six degrees of freedom. The manipulators provide more options for the number of degrees of freedom and also more simplicity compared to the current cable-based robots. The general structure of these manipulators includes a base platform, a moving platform or end effector, an extensible or telescoping central post connecting the base to moving platform to apply a pushing force to the platforms. The central post can apply the force by an actuator (active), or spring or air pressure (passive) using telescoping cylinders. The robotic manipulators use a combination of active and passive tensile (cable) members, and collapsible and rigid links to maximize the benefits of both pure cable and conventional parallel mechanisms. Different embodiments of the robotic manipulators use either active cables only, passive cables only, or combinations of active and passive cables. An active cable is one whose length is varied by means of a winch. A passive cable is one whose length is constant and which is used to provide a mechanical constraint. These mechanisms reduce the moving inertia significantly to enhance the operational speed of the robots. They also provide a simpler, more cost effective way to manufacture parallel mechanisms for use in robotic applications.

A telescopic ladder apparatus can be deployed from a closed receptacle on the stern portion of a boat. The ladder is formed with telescopic side rails supporting transverse treads that can collapse into a stored position in which the treads are placed adjacent one another. The side rails are mounted to a slide mechanism that is mounted in the receptacle for sliding movement relative to the boat. The slide mechanism supports the side rails for a linear sliding movement to permit the deployment of the ladder externally of the receptacle to be telescopically extended toward the water. The side rails are pivotable downwardly to position the ladder into a generally vertical deployed position from the generally horizontal stored position. The receptacle housing the telescopic ladder and slide mechanism is opened for access to the ladder through a generally vertically oriented door that provides a clean aesthetic appearance for the boat.

The invention discloses an energy-absorbing children automobile chair. A chair and a base are rotatably or relatively slidably connected; a telescopic cylinder capable of stretching and contracting along the axial direction is arranged between the chair and the base; when an automobile bumps suddenly or is subjected to other emergency situations, the chair can rotate or move relative to the base, so that the telescopic cylinder positioned between the chair and the base is extruded to contract in the axial direction, a buffering force is provided to the chair, an energy-absorbing shockproof effect is achieved, furthermore the chair and a child on the chair are protected, and injuries suffered by the child sitting on the chair are reduced or avoided.

The invention discloses a bionic manipulator, which comprises a main body lifting cylinder, which extends along a vertical direction, wherein a main body rotating cylinder capable of rotating around a central axis of the main body lifting cylinder is fixedly arranged on the output end of the main body lifting cylinder, an arm telescopic cylinder, which extends along a horizontal direction, is fixedly arranged on the output end of the main body rotating cylinder, an artifice rotating cylinder, which rotates around the central axis of the arm telescopic cylinder, is fixedly arranged on the arm telescopic cylinder, and a paw part used for grabbing articles is arranged on a rotating output part on the artifice rotating cylinder. When used, materials are grabbed by the paw part firstly, and then the paw part is moved and adjusted to a proper position through a telescopic action of the arm telescopic cylinder, a rotating action of the main body rotating cylinder and a lifting action of the main body lifting cylinder according to actual requirements, when the paw is moved in place, the materials are put down by the paw part, so that the materials can be conveyed without manual work.

The invention discloses a loading and unloading manipulator which is characterized by comprising a rotary workpiece module, a loading module, a clamping module, an unloading module and a motion control system module, wherein the rotary workpiece module mainly comprises a bracket, a telescopic swinging cylinder, a connecting plate, a rotary motion device, a first linear slide rail and a rotary paw; the rotation of the telescopic swinging cylinder drives the rotary paw to rotate; the expansion and the contraction of the telescopic swinging cylinder drives the rotary paw to expand and contract along the first linear slide rail; the loading module mainly comprises a loading paw device, a tiny moving mechanism, a movable large cylinder and a second slide rail; the expansion and the contraction of the movable large cylinder drives the loading paw device to move forwards and backwards along an axis X under the driving of the tiny moving mechanism; the clamping module comprises two cylinders which are perpendicularly connected with each other; the vertical cylinder expands and contracts in an axis Z direction, and the horizontal cylinder expands and contracts in an axis Y direction, so as to clamp and release a workpiece; and the unloading module comprises an unloading pusher mechanism, an inclined plane delivery mechanism and an unloading conveyor belt.

A suspension for the boom of a loading vehicle includes a hydraulic cylinder for raising and lowering, or for extending and retracting (in the case of a telescopic cylinder), a boom. A direction control valve is provided for selectively routing hydraulic oil to and from at least a head-end chamber of the cylinder. A position sensor senses the position of the hydraulic piston rod, at the start of operation, and sends a sends a target signal representing this beginning position to a control unit which determines the difference between the target signal and a signal representing a current position of the piston rod. When this difference equals a preset difference threshold, a pressure-limiting unit, in the form of a valve or choke, is activated so as to control fluid flow to and from the head-end chamber so as to return the piston rod to its initial position which generated the target signal. Different embodiments have different valve component arrangements for influencing the reaction time of the suspension and / or for adapting the circuitry for use with single-acting, double-acting or telescopic boom cylinders.

The invention discloses a pushing and cutting device. The pushing and cutting device comprises a worktable, wherein the interior of the worktable is a cavity structure; a group of loading plates parallel to each other are arranged on the upper surface of the worktable; an ejection plate is arranged at one end of each loading plate; a linear motor with a telescopic end in a horizontal direction is arranged on each ejection plate; an ejection block is arranged at the telescopic end of each linear motor; an L-shaped bracket is arranged on the upper surface of each ejection block; a micro telescopic cylinder with a downward telescopic end is arranged on the lower surface of each L-shaped bracket; a controller is arranged on one side surface of the worktable; a power interface is located under the controller and is electrically connected to the controller; the controller is electrically connected to the linear motors, the micro telescopic cylinders, an electric trolley, a telescopic cylinder and a rotating motor respectively. The pushing and cutting device has the advantages that the device is capable of automatically pushing and cutting, the personal safety of workers is protected, the device is capable of uniformly cutting, and the device is convenient and practical.

The invention provides an explosive-handling robot which comprises a base plate, a detecting unit, a box, a hydraulic mechanical arm and a manipulator. A swinging arm type crawler mechanism is adopted for the base plate so that the explosive-handling robot can run fast on the flat road and surmount various barriers, and can be particularly suitable for moving in dangerous and complicated road surface environments. A high-definition camera detection device is installed on the box, and a camera can identify explosives. In addition, a rotation device is installed on the box so that the mechanical arm can rotate by any angle. The hydraulic mechanical arm is adopted as the main body of the mechanical arm body and provided with a hydraulic drive pitching cylinder, two hydraulic driven pitching cylinders and a hydraulic drive telescopic cylinder in total. The manipulator is installed at the tail end of the mechanical arm, and used for clamping explosives through driving of a servo motor, transmission of a lead screw and adoption of a four-rod mechanism. The explosive-handling robot has the characteristics of rapid moving, accurate grabbing, simple structure and good performance.

The automatic controlled multi-joint boom telescopic equipment is characterized by that the left and right two sides of cylinder head the cylinder pins are connected, the boom pin drawing-out device is connected in the upper portion of the cylinder head, a detection switch for detecting its end and initial positions of set nearby boom-pin drawing-out device, in the lower end of left and right cylinder pins there is an end and initial position detection proximity switch respectively, and in both sides of rear end of every telescopic boom a boom position detection proximity switch is set respectively, and the upper portion of the rear end of the telescopic boom is equipped with boom pin, and both sides of cylinder head and cylinder are equipped with float telescopic oil cylinder slideway and the left and right positions of rear end of every boom have sliding way chute respectively.

A suspension for the boom of a loading vehicle includes a hydraulic cylinder for raising and lowering, or for extending and retracting (in the case of a telescopic cylinder), a boom. A direction control valve is provided for selectively routing hydraulic oil to and from at least a head-end chamber of the cylinder. A position sensor senses the position of the hydraulic piston rod, at the start of operation, and sends a sends a target signal representing this beginning position to a control unit which determines the difference between the target signal and a signal representing a current position of the piston rod. When this difference equals a preset difference threshold, a pressure-limiting unit, in the form of a valve or choke, is activated so as to control fluid flow to and from the head-end chamber so as to return the piston rod to its initial position which generated the target signal. Different embodiments have different valve component arrangements for influencing the reaction time of the suspension and / or for adapting the circuitry for use with single-acting, double-acting or telescopic boom cylinders.

The invention discloses a device with multiple sections of telescopic jibs, comprising a fringe connection part and a bolt connection part; the fringe connection part comprises at least two sections of telescopic jibs located in the inside and connected with a travel cable through a turning wheel; the bolt connection part comprises at least one section of telescopic jib located at the outside and connected with a cylinder pin through a jib pin and a basic jib (211); a cylinder tube (281) of a telescopic cylinder (28) is connected with the outmost section of telescopic jib of the fringe connection part. Therefore, in the extending processing of the telescopic jibs, each section of telescopic jib of the fringe connection part extends synchronously, which increases the extending speed of the device with multiple sections of telescopic jibs as well as the working efficiency; at the same time, because the fringe connection part is connected with the bolt connection part by the jib pin (262), and the axial force between the telescopic jibs is transmitted through the jib pin, the stress condition of the telescopic cylinder (28) is improved, the size is reduced properly so as to reduce the cost. The invention further discloses an automobile crane comprising the device with multiple sections of telescopic jibs.

The invention discloses a bidirectional lateral linkage and clamping mechanism, which is characterized in that: a rotatable hinging rod and a rotatable connecting rod are respectively hinged on a fixing bracket, and the connecting rod is positioned above the hinging rod; a driving cylinder as a driving member is positioned at one side of the fixing bracket, a cylinder seat of the driving cylinder is hinged at one rod end of the hinging rod, the other rod end of the hinging rod is fixedly connected with a first rotating arm, a second rotating arm which is opposite to the first rotating arm is fixedly connected to the rod end of the connecting rod, and the rod end of a telescopic cylinder rod in the driving cylinder is hinged with the second rotating arm. According to the invention, bidirectional lateral linkage drive to the first rotating arm and the second rotating arm by the driving cylinder is formed; and the bidirectional lateral linkage and clamping mechanism has the advantages of simple structure, easiness in maintenance and high working efficiency.

A lens barrel including a telescopic cylinder configured to be accommodated within a fixed cylinder; a plurality of lens groups configured to be retained in the telescopic cylinder; a lens driving device configured to drive the plurality of lens groups along a longitudinal axis of the telescopic cylinder between a collapsed position in which at least one portion of the plurality of lens groups is stored in the fixed cylinder and an extended position in which the at least one portion of the plurality of lens groups is extended out of the fixed cylinder; and a retractable lens group configured to be retracted into the fixed cylinder through an opening in a wall of the fixed cylinder when the telescopic cylinder is in the extended position.

The invention discloses a superlift device, which is used for a telescopic crane, and comprises at least one rotary support, a derricking oil cylinder, a first tension device, and a second tension device, wherein a fixed end of the rotary support is pivoted with a basic boom of the telescopic crane; the derricking oil cylinder is arranged between the rotary support and the basic boom; the first tension device is arranged between a movable end of the rotary support and the outer end of any telescopic boom of the telescopic crane; and the second tension device is arranged between the movable end of the rotary support and the root of the basic boom. The first tension device applies a first tension force between the telescopic boom and the movable end of the rotary support, and the component force of the first tension force can balance the partial component force of a heavy object in a sheared direction of a main boom, so the stress state of the main boom is obviously improved, the deflection of the main boom is remarkably reduced under equal loading conditions, and performances of the telescopic crane such as total boom length, lifting height and lifting weight are remarkably promoted.

The invention discloses a stacking manipulator for machine room floor production. The stacking manipulator comprises a base, a stand column, a revolving mechanism, a lifting mechanism and a cross beam; the stand column is vertically mounted on the base through the revolving mechanism; the tail end of the cross beam is perpendicularly mounted in a chute of the stand column through the lifting mechanism; a telescopic cylinder is fixedly mounted at the bottom of the front end of the cross beam; and the tail end of an extension rod of the telescopic cylinder is connected with a four-jaw manipulator controlled to open or close by the telescopic cylinder. The stacking manipulator is simple in structure and reliable and stable in stacking, saves the labor force, has no adhesive effect destruction risk in the stacking process, and can realize double-station stacking under the condition of not increasing any hardware to supply enough time for evacuation of stacked materials.

In one embodiment, a torque limiter comprises an outer cylindrical housing having a plurality of semicircular grooves disposed in an interior surface. An inner cylindrical housing is arranged at least partially within the outer cylindrical housing. The inner cylindrical housing has a plurality of slots passing from its interior surface to its exterior surface. A plurality of roller bearings are disposed within the slots. An elastic cylinder is also arranged within the interior of the inner cylindrical housing. When applied torque is below a torque limit, the elastic component presses the roller bearings into contact with the semicircular grooves to couple the outer and inner cylindrical housing. In response to applied torque exceeding the torque limit, the elastic component compresses sufficiently to allow the roller bearings to retract and disengage the semicircular grooves, thereby decoupling the outer and the inner cylindrical housings and preventing the transfer of torque.

The invention discloses a novel quick digging and anchoring integrated machine for a rectangular coal roadway, which comprises a heading machine, a temporary support system, an anchoring system, a conveying system and a dust removing system, and also comprises a support system, wherein a sealing device is arranged between the head of the heading machine and the front of the support system; the sealing device comprises a main body plate, a movable sealing plate and left and right movable sealing plates; support hydraulic cylinders are arranged on the main body plate and an upper movable sealing plate bracket; support hydraulic cylinders are arranged on the main body plate and left and right movable sealing plate brackets as well; meanwhile, an upper movable sealing plate, the left and right movable sealing plates are provided with flexible sealing belts; the front end of a dust removing pipeline of the dust removing system is installed on the main body plate of the sealing device; and the dust removing pipeline is communicated with the space in the front part of the sealing device. The novel quick digging and anchoring integrated machine for the rectangular coal roadway, provided by the invention, employs a novel telescopic cylinder to cut and mold the width of a roadway in one step, therefore, the high efficiency is achieved, and in addition, the damage to a base plate due to repeated displacement is avoided; through cooperation of adjusting oil cylinders with flexible sealing, a top plate and lateral walls are very adaptive, so that dust is prevented from rushing into a rear working space; and meanwhile, a working environment is improved.

The invention relates to an electric automatic levelling brace for realizing multipoint electric automatic levelling, and aims to provide an electric automatic levelling brace with large lifting weight, rapid and reliable touchdown, good repeatability of levelling precision, high precision, safety, convenience, convenient maintenance and simple electric connection. The electric automatic levelling brace comprises a levelling bearing disc connected with a levelling brace cylinder body and a direct current servo motor with an electric control unit. The top of the levelling brace cylinder body is provided with a transmission chain which is connected with an output shaft of a speed reducer and a leading screw pair for rotary motion; the leading screw pair drives a levelling telescopic cylinder body manufactured with a screw and the levelling bearing disc fixedly connected with the leading screw pair together to do linear lifting motion; a microswitch for feeding back the lifting position to an external control system is arranged on the cylinder wall of the levelling brace cylinder body; a small displacement triggering shaft records the moving position, triggers the microswitch at a triggering point and transfers an electrical signal of the lifting position of the levelling brace to the outside; and the small displacement triggering shaft is connected external control equipment through the microswitch and forms a closed loop levelling system with the servo motor connected with the speed reducer .

A lens barrel including a telescopic cylinder configured to be accommodated within a fixed frame; a plurality of lens groups configured to be retained in the telescopic cylinder; a lens driving device configured to drive the plurality of lens groups along a longitudinal axis of the telescopic cylinder between a collapsed position in which at least one portion of the plurality of lens groups is stored in the fixed frame and an extended position in which the at least one portion of the plurality of lens groups is extended out of the fixed frame; and a retractable lens group configured to be retracted into the fixed frame through an opening in a wall of the fixed frame when the telescopic cylinder is in the extended position.