272 results about "Elastic 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.

A one-way valve with an annular nozzle. The valve body is a truncated cone with an interior fluid manifold. The truncated cone section includes a lower retaining groove and a fluid groove. A fluid conduit connects the interior fluid manifold to the fluid groove. An elastic cylinder having an internal diameter which is smaller than the truncated cone is slipped over the truncated cone. The lower portion of the elastic cylinder slips into the retaining groove. The upper portion rests over the fluid groove. When fluid pressure within the interior fluid manifold exceeds the pressure outside the valve, fluid flows through the conduit and into the fluid groove. This pressure urges the upper portion of the elastic cylinder away from the truncated cone Fluid then flows out through an annular nozzle formed between the upper portion of the elastic cylinder and the upper portion of the truncated cone. When pressure outside the valve exceeds the fluid pressure within the interior fluid manifold, the elastic cylinder is clamped tightly against the truncated cone, thereby preventing flow back through the valve.

The purpose of the present invention is to provide a handle of a golf club. The handle includes an elastic cylinder sleeve sleeving the golf club through; a strip made from a shockproof material and having two long side peeled into a specific thickness and a top surface with a patent layer; and an adhesive layer disposed between the elastic cylinder and the strip for making the strip be spirally wound around the elastic cylinder.

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 belongs to the technical field of fluid and structure, and discloses an elastic cylinder vortex-induced vibration rule and coupling mechanism determination method. According to the method, rules of influence to dynamic flow field, vortex shedding frequency, dynamic vortex distribution, stability and vortex-induced vibration of elastic are determined as well as unsteady aerodynamic force interference characteristic and coupling mechanism between flapping wings and the elastic-vibration cylinders by analyzing unsteady aerodynamic force characteristics, flow field variation, vortexshedding frequency and vortex shedding structure distribution rule of the flapping wings. The dynamic fluid characteristics, vortex shedding frequency and vortex shedding structure distribution rule of the flapping wings under variation of parameters such as different flapping angle, flapping frequency and Reynolds number is defined; the vortex-induced vibration vibration rule and coupling mechanism of the elastic cylinders under different flapping angle, flapping frequency, mass ratio, damping ratio, spring stiffness coefficient, flow parameters under different degrees of freedom, and dynamicvortex distribution parameter along with motion of the flapping wings is determined.

The invention discloses a three-dimensional dynamic force test platform for ultra-high-speed cutting, which includes a structure to be cut, four resistance strain gauge groups, an integrally formed upper surface platform, an elastic cylinder, eight elastic thick slices, four elastic thin slices, a support The base; the elastic cylinder is located on the supporting base; 8 elastic slabs are in pairs, 4 elastic sheets correspond to 4 groups of elastic slabs one by one, and the two ends of the elastic sheets are respectively connected to two elastic slabs in each group. One end of the sheet constitutes 4 elastic groups, and the 4 elastic groups are respectively located around the elastic cylinder, and the other ends of the two elastic slabs in each elastic group are respectively connected to the support base and the upper surface platform; the upper surface platform is located on The upper part of the elastic cylinder and the elastic group is connected with the elastic cylinder; the structure to be cut is arranged on the upper surface platform; the resistance strain gauge group is respectively fixed at the middle position of the four elastic sheets. This kind of test platform can meet the requirements of ultra-high speed cutting force signal measurement, and realize the accurate measurement of three-dimensional dynamic force.

A manipulator device used in the production of refrigerant tanks, including a manipulator assembly, the manipulator assembly includes a gripper, a gripper elastic cylinder, a gripper telescopic cylinder and a swing arm, and the gripper is used to control the clamping and gripping of the gripper The jaw elastic cylinder for the loosening action is connected to the jaw telescopic cylinder used to produce two actions of extending and retracting. The jaw telescopic cylinder is installed on the swing arm. The arm is fixedly installed on the rotating shaft, and the rotating shaft is rotatably installed on the lifting platform, and the rotating shaft is connected with the rotation driving mechanism. The invention provides a manipulator device used in the production of refrigerant tanks, which can realize the automatic loading and unloading process in the production process of two-piece refrigerant tanks.

A battery pack includes: a plurality of battery cells (1); and heat dissipating holder (2) that is disposed among battery cells (1) and is in contact with the battery cells (1) in a thermally coupled state. Heat dissipating holder (2) includes: holder body (3) having insertion holes into which battery cells (1) are inserted; and thermally-conductive insulating rubber (4) having elastic cylinders to be disposed on the inner surfaces of the insertion holes. Each elastic cylinder includes a plurality of elastic projections projecting on its inner surface. The inner shape of each elastic cylinder in a non-insertion state of battery cell (1) is made smaller than the outer shape of battery cell (1). In heat dissipating holder (2), battery cells (1) inserted into the elastic cylinders are disposed at fixed positions in the insulated state. The elastic projections are elastically pressed on and closely contact the periphery of battery cell (1). The thermal energy of battery cells (1) is conducted to holder body (3) via the elastic cylinders.

The invention provides a water jacket which comprises a water jacket cover and a water jacket body that are mutually matched, wherein the water jacket is sealed by adopting a C-shaped gland cover and the water jacket body, and the lower side of the water jacket cover is provided with an elastic cylinder opening gasket used for sealing a gas cylinder opening and the water jacket. The invention has the advantages that the tightness is of the water jacket is good, the tightness of the water jacket and the gas cylinder opening is also good, a thread at the gas cylinder opening after the test is finished is not easy to damage; and compared with the prior art, a water pressure test device applying the water jacket of the invention has simple structure, stable property, high production efficiency and great energy consumption reduction.

The invention provides an underwater acoustic detection device based on a photoelectric oscillator. The device comprises a laser light source circuit, a photoelectric oscillation loop and a frequencydemodulation circuit. The device enables a phase-shifted fiber grating or a fiber grating F-P cavity interferometer to be embedded into a microwave photon filter, and uses an elastic cylinder to convert external acoustic wave changes into fiber grating stress or pressure changes, thereby enabling wavelength changes to be converted into the changes in the center frequency of the microwave photon filter, and enabling the frequency of the output microwave signal of the photoelectric oscillator to change. The underwater sound field detection is completed by analyzing the frequency changes by the digital signal demodulation technology. Compared to a conventional fiber optic hydrophone device, the device provided by the invention has higher accuracy, demodulation speed and signal to noise ratio,and a large dynamic range. The technical contents involved mainly include the microwave photon filter making technology, the multi-frequency photoelectric oscillation technology, the scalar sound pressure and three-dimensional sound field measurement technology, the signal demodulation technology, the packaging technology and the array multiplexing technology.

An object of the present invention is to provide an expandable electric cord not requiring a large force (energy loss) for expansion and contraction, able to carry a large current for driving electric power, and having expandability under a small load and low electrical resistance.The inventive expandable electric cord has a structure at least comprised of a core portion, a conductor portion and a sheath portion; wherein, the core portion is an elastic cylinder comprised of an elastic body and an intermediate layer covering the outer periphery thereof, the conductor portion contains a conductor wire comprised of narrow stranded wires, with the conductor wire being coiled and / or braided around the outer periphery of the elastic cylinder, and the sheath portion is an outer sheath layer comprised of an insulator that covers the outer periphery of the conductor portion.

The invention relates to a lamp shock absorber, which comprises a connecting rod, a first elastic cylinder, a second elastic cylinder, and a shell; the connecting rod is provided with a baffle plate which divides the connecting rod into a first section and a second section; the first elastic cylinder is sheathed at the first section and contacted with the baffle plate; the second first elastic cylinder is sheathed at the second section and contacted with the baffle plate; the shell is provided with an opening end, the other end of the shell is provided with a first through hole for the first section to penetrating out, the shell also comprises a cover board, and the cover board is fixedly connected on the opening end; the connecting rod and the elastic cylinders are positioned in the shell, and the first section of the connecting rod penetrates out of the first through hole. The inventive lamp shock absorber is designed to effectively solve the multi-direction shock proof problems of professional lamps, obviously improve shock proof performance of professional lamps or object subject to shock absorption, remarkably prolong the service life, avoid economic loss of customers due to bulb damage, save maintenance expenditure, have the advantages of simple structure, low cost and convenient use.

The invention discloses a bamboo joint type fiber laser hydrophone packaging structure, an assembling method thereof, and a processing method of a bamboo-joint-shaped elastic cylinder. The packaging structure comprises a pair of end caps, a pair of elastic films, the bamboo-joint-shaped elastic cylinder and an active fiber, the external surface of the bamboo-joint-shaped elastic cylinder is provided with multiple circular grooves, the internal of the bamboo-joint-shaped elastic cylinder is filled with silicone oil, the two elastic films are glued to the two ends of the bamboo-joint-shaped elastic cylinder respectively, the two end caps are arranged at the two ends of the bamboo-joint-shaped elastic cylinder respectively, air cavity structures are formed between the end caps and the corresponding elastic films respectively, the active fiber is positioned in the internal central axis of the bamboo-joint-shaped elastic cylinder, and the two ends of the active fiber penetrates out of the end caps respectively.

The invention belongs to the technical field of stone processing, particularly relates to an ultrasonic wave and magnetic force composite grinding device for a jade emboss craftwork and a grinding process. The grinding device comprises a numerical control auxiliary machine frame, as well as an ultrasonic wave generating mechanism and a magnetic force grinding mechanism which are arranged on the auxiliary machine frame, the ultrasonic wave generating mechanism comprises an ultrasonic generator, a piezoelectric transducer, an amplitude transformer and an elastic cylinder clamp, wherein a collecting ring is arranged on the outer side of the piezoelectric transducer, the piezoelectric transducer is connected with a driving main shaft on the numerical control auxiliary machine frame, and the magnetic force grinding mechanism comprises a permanent magnet and a magnetic grinding material. According to the invention, ultrasonic wave vibration is used for forming impulse pressure on the surface of jade, the magnetic grinding material can be used for effectively improving the processing efficiency and the processing quality to the concave-convex surface of the jade under the composite effect of magnetic force and impulse pressure, mechanical polishing to the jade emboss craftwork can be achieved, and defects of manual polishing are overcome.

According to the requirement for operation of an air pre-heater, a heat exchange tube stretches in a tube hole of an upper tube board, and air is not leaked. At present, the well known sealing structure is of a floating tube sealing structure which cannot easily ensure that the tube hole is sealed under the high temperature working state mainly because that the rigidity of a sealing sleeve is too large and the sealing sleeve cannot be sealed with a heat exchange tube with poor installation coaxiality. An elastic sealing sleeve device for floating tube sealing of the air pre-heater is composed of a packing gland, sealing packing, an elastic sealing sleeve, an upper tube board, a heat exchange tube and the like, and is characterized in that the elastic sealing sleeve is composed of an upper part, a middle part and a lower part, the upper part is a packing box, the lower part is a sealing ring, and the middle connection part is an elastic cylinder. As the elastic cylinder is arranged in the middle, the rigidity, in various directions, of the sealing ring is largely lowered, the sealing problems such as the poor installation coaxiality of the heat exchange tube can be solved under the high temperature working state, and therefore the hidden danger of occurrence of large-area fire of the upper tube board is eliminated, and the safety performance of the elastic sealing sleeve device is improved.

The invention provides an oil lubricating roll-slide bearing with an elastic roller. The roll-slide bearing consists of an outer ring (1), elastic cylindrical rollers (2), slide blocks (3) and an inner ring (4), wherein the elastic cylindrical roller (2) and the slide block (3) are positioned in a chute between the outer ring (1) and the inner ring (4); the number of the elastic cylindrical rollers (2) equals to that of the slide blocks (3), and the elastic cylindrical rollers (2) and the slide blocks (3) are distributed at intervals; the diameter of the elastic cylindrical roller (2) is morethan the thickness of the slide block (3) in the radial direction of the bearing, and the axial length of the elastic cylindrical roller (2) is less than the length of the slide block (3) in the axial direction of the bearing; the elastic cylindrical roller has a certain pre-compression amount in the diameter direction, trace clearances are reserved between the slide blocks (3) and the inner ring(1) and between the slide blocks (3) and the outer ring (4), and the elastic cylindrical rollers (2) are kept to be contacted with the slide blocks (3). The oil lubricating roll-slide bearing is usedfor reducing the applied stress on the inner and outer rings and the elastic cylindrical roller, has the characteristics of storing and releasing energy and maintaining rolling, and has small abrasion and long service life compared with those of a roll-slide bearing with a corresponding size.

A front-arrangement type ice breaking device is composed of a support, an oil cylinder, a connecting rod, an elastic cylinder pin, a hydraulic motor, a cutter rod frame, a rectilinear motion ball support, a compression spring, cutter rods, self-aligning roller bearings, an end cover I, a cam shaft, a cam, a shaft bush, an end cover II and the like. The support is mounted at the front end of the device through a bolt, the support and the cutter rod frame are connected together through the connecting rod, the oil cylinder and the support are hinged to the cutter rod frame, the cutter rods, the rectilinear motion ball support and the compression spring are mounted in the cutter rod frame, the cam is mounted on the cam shaft through the elastic cylinder pin, five supporting points are arranged on the cutter rod frame, the self-aligning roller bearings are arranged on the two sides of the cutter rod frame and fixed through the end cover I, a separated type shaft bush is arranged in the cutter rod frame and fixed by the end cover II, and the motor is connected with the cam shaft and then is fixed on the cutter rod frame. When the device works, stretching of the oil cylinder can be adjusted according to the depth of broken ice so that the ground clearance of the cutter rods can be changed, and then the hydraulic motor is started to drive a cam mechanism to rotate so as to enable the cutter rods to continuously thump the ice surface at constant speed. The front-arrangement type ice breaking device has the advantages of being lower in price, higher in work efficiency and flexible in operation.

The invention provides a potting packaging method of a fiber-optic hydrophone probe. By the potting packaging method, an acoustic transmission material fully enters a gap between an optical fiber ringand an elastic cylinder in a potting process, and the non-defective rate in production of hydrophone probes and long-time serviceability are improved. According to the potting packaging method, the acoustic transmission material is poured into a hydrophone probe under ordinary pressure, the fiber-optic hydrophone probe is integrally put into a closed container when the acoustic transmission material is not cured, pressure in a closed cavity is raised and maintained, after a period of time, the acoustic transmission material is cured in the closed container, and packaging is finished.

A hydraulic pressure actuator having an inner tube and a mesh sleeve covering the outer periphery of the inner tube and longitudinally extendable by pressure fluid fed into the inner tube, wherein a low friction body formed in an elastic cylindrical body by knitting fine fibers is disposed between the inner tube and the mesh sleeve, and the low friction body contributes to an increase in the life of the hydraulic pressure actuator repeatedly performing extension / retraction motions. The hydraulic pressure actuator is used as an actuator for driving a CPM device which supports the extremity of a human body by ay least one of a plurality of members combined with each other and performs the rehabilitation of the joints of a handicapped by operating the member.

The invention relates to an optical fiber sensor which is suitable for a natural gas pipeline leakage detection system. The optical fiber sensor consists of an elastic cylinder (3), a fiber optic interferometer (4) and a tail fiber disk fiber box (5), wherein interference arms of the fiber optic interferometer are uniformly and orderly wound on the periphery of the elastic cylinder (3); an optical fiber and the elastic cylinder are tightly bonded together by using a bonding agent; the fiber optic interferometer left after winding and relevant devices of the fiber optic interferometer are orderly wound in the tail fiber disk fiber box (5); the tail fiber disk fiber box (1) is fixed on the top of the elastic cylinder (3) by using a bonding agent; the elastic cylinder (3) is a steel short cylinder of which the bottom is inwardly depressed and the radian is consistent with that of the outer surface of a pipeline; and during installation of the sensor, the inwardly-depressed end of the elastic cylinder (3) is bonded on the surface of a natural gas pipeline by using a bonding agent. A front end probe with high positioning accuracy and high sensitivity is provided for a quasi-distributed natural gas pipeline leakage detection system.

The invention discloses a female terminal of an electric connector and a processing method thereof. And the reeds are interlaced with each other; the female terminal is assembled in the sleeve, and its several fixing claws are folded on the outer edge of one end of the sleeve and fixed by crimping the outer sleeve; the production of the female terminal and The installation includes steps such as stamping to have several reeds arranged axially parallel and interlaced with each other, rolling to form a female terminal with a wave structure, and assembling the female terminal and the sleeve. Compared with the prior art, the present invention has small contact resistance, stable plugging force and long plugging life, and is especially suitable for maintaining high reliability of electrical contact in a strong vibration and impact environment, under the condition of constant contact pressure and raw materials , with a higher current-carrying capacity.

The invention discloses a novel fiber grating pressure transducer. A fiber grating is fixedly connected to the upper surface of a double-arc uniform-thickness cantilever; the cantilever is arranged inside a free elastic cylinder and keeps permanent active contact with the free elastic cylinder through contact points; the elastic cylinder is fixed at proper position inside a protective shell through two end head elements and sealing elements; and the elements are mutually connected by a certain pretightening force by using sealing pads (among end head planes) or placing in annular sealing rings (among cylindrical surfaces) in grooves. By adopting a method for detecting the fiber grating reflectance spectrum 3dB band width, the invention can avoid the problem that the temperature influences a measuring signal. The invention has the advantages that the measurement of higher pressure can be realized; signal transmission has low loss and no distorsion, so the invention is applicable to measurement for a long distance; and a sensor probe part of the system has electric insulation, good safety and the like.

The invention discloses a sensitivity-enhanced quasi-distributed optical fiber pressure sensor which is insensitive to temperature, multiplexed, and adjustable in stressed area, measurement sensitivity and measurement range, low in cost, stable in performance and easy to replace, the pressure sensor comprises a pressure panel, an elastic cylinder wound with optical fibers, a reference optical fiber fixing groove, a bottom shell, a limit telescopic rod and a fiber optic adapter, the elastic cylinder wound with the optical fiber is positioned on the bottom shell; the pressure panel is positionedabove the elastic cylinder wound with the optical fiber; a rectangular through hole is arranged in the center of the elastic cylinder wound with the optical fiber; a reference optical fiber is arranged in the reference optical fiber fixing groove; a sensing optical fiber is arranged on the elastic cylinder wound with the optical fiber, the input and output ends of the reference optical fiber andthe sensing optical fiber are electrically connected with the fiber optical adapter, the limit telescopic rod is arranged between the pressure panel and the bottom shell. The sensitivity-enhanced quasi-distributed optical fiber pressure sensor can be applied to scientific research, measurement and detection of a power plant and a gas plant, etc.

The invention discloses a wire transmitting device, which comprises the following parts: base, wire assembling unit, wire unit and pushing unit, wherein the wire assembling unit contains a mobile mechanism in the assembling hole on the base, which concludes at least two groups of wire block in the mobile mechanism and elastic cylinder oil seal on two separation wire blocks, the pushing unit anchors mobile mechanism to move reciprocally, which makes wire transmit stably and rapidly to provide a stable force for locating the wire.

This invention relates to a load transducer of open type, resisting eccentricity loaded and three elastic posts. Connect three selfsame elastic posts on the open type lower loading plate; built-in amplifying circuit board attach with three elastic posts; lower loading plate's side connect with curve type shell and strap; Upper end of three elastic posts attach upper loading plate; pros and cons of elastic post middlepiece all paste two piece strain gauge and connector; strain gauge's led feet monogamy connect with connector, connector by wire join to amplifying circuit board; this invention adopt open type low-short structure, via amplifying circuit board built-in load transducer to realize three elastic post's strain signal summation, even if load eccentricity will not impact accuracy of measurement. amplifying circuit panel gain precise load signal by amplify cumulative strain signal, and translate these signal into two-wire channel current signal to make remote transmission.

The invention discloses a foldable shelf. The foldable shelf comprises a back plate, a back plate seal, a supporting plate, a supporting plate seal, connecting columns, a hook and a rubber plug. A semicircular body of the back plate is connected with a groove of the supporting plate, and an elastic cylinder of the back plate is elastically connected with the inner wall of the groove of the supporting plate. A semicircular groove of the back plate is connected with a small groove of the supporting plate through the corresponding connecting column. A groove in the lower portion of a back plate body is connected with a semicircular body of the hook, and an elastic cylinder of the hook is elastically connected with the inner wall of the groove of the back plate body. A semicircular groove of the hook is connected with a small groove of the back plate through the corresponding connecting column. A rectangular cavity of the back plate is connected with a convex step of the back plate seal. A cavity of the supporting plate is connected with a convex step of the supporting plate seal, and a notch groove in the cavity is connected with the supporting plate seal through a screw. The step of the supporting plate seal is meshed with the step of the back plate seal. The foldable shelf has the advantages that the folded state of the supporting plate is maintained through the friction force generated by the elastic cylinders; as the back plate and the supporting plate are of frame type structures, strength is good; in addition, the hook is arranged at the bottom.

The invention discloses a method for turning an eccentric shaft. The method is characterized by comprising the following steps of: a. providing a machining machine tool, a plurality of alternative eccentric cylinder clamps, an elastic cylinder clamp and an eccentric shaft work piece, wherein the eccentric shaft work piece is placed into the eccentric cylinder clamps through an eccentric shaft hole, and the eccentric cylinder clamps can be placed into the elastic cylinder clamp from an opening expanding end of the elastic cylinder clamp; and b. fixing the elastic cylinder clamp on a machine tool clamp head on the machining machine tool to tightly match a tapered surface of the opening expanding end of the elastic cylinder clamp with an inner tapered surface of a corresponding end of the machine tool clamp head, and enable an axis of the elastic cylinder clamp to be concentric with a main shaft of the machining machine tool; placing the eccentric cylinder clamps into the elastic cylinder clamp, wherein the eccentric cylinder clamps and the elastic cylinder clamp are matched in a small interference fit manner; placing the eccentric shaft work piece into the elastic cylinder clamps; and then, machining and operating the eccentric shaft work piece. The method disclosed by the invention is beneficial for replacing the eccentric cylinder clamps with different specifications; and the aim of rapidly and highly-precisely producing eccentric shafts by various machine types in a batch is achieved through rapidly replacing the eccentric cylinder clamps.