187 results about "Radial compression" patented technology

The thrombectomy device comprises a thrombectomy support, a connecting pipe and a traction wire, an inner cavity is formed in the thrombectomy support with the traction wire, the thrombectomy support with the traction wire comprises a cutting part located at the near end, and an opening which is communicated with the inner cavity of the traction wire and is closed in the circumferential direction is formed in the cutting part of the traction wire. The traction wire cutting part comprises a far-end end part and a near-end end part which have an axial distance; the connecting rod is connected with the near-end end part of the traction wire thrombectomy bracket; the far end of the traction wire is connected with the traction wire thrombectomy support, and when the traction wire is subjected to traction action pointing to the near end, the traction wire applies radial compression force to the traction wire thrombectomy support. The thrombus extraction efficiency of the thrombus extraction device is high.

Disclosed is a rupture disc assembly for use in making a temporary seal in a vessel such as a casing string. The rupture disc assembly may include a rupture disc having a side surface that has a shallow angle taper inward towards a bottom surface of the rupture disc, and a mounting apparatus to support the rupture disc so that the rupture disc forms the temporary seal. When a disc working pressure is applied to a top surface of the rupture disc, engagement / force transmission between the rupture disc and the mounting apparatus produces enough radial compression in the rupture disc due to the shallow angle taper to significantly mitigate or cancel tensile stresses thereby avoiding the rupture disc from breaking. The rupture disc may be configured to break when the rupture disc is subjected to a disc working pressure that is greater than the disc rupture pressure, thereby removing the temporary seal. An axial abutment surface feature may be provided which is configured and operable to limit downward axial movement of the rupture disc relative to said disc support mechanism and thus be operable to restrict the amount of compression said tapered wall surface of said disc support mechanism can exert on said at least a portion of said rupture disc when the top surface of the rupture disc is subjected to said hydraulic pressure within the well.

The invention belongs to the technical field of deep sea equipment, and particularly relates to a deep sea plugging device and a floating base radial pressing force adjusting method thereof. The device is located in a water injection type pressurization cabin, and a driving sliding table mechanism and a floating base are sequentially arranged along the same axis; the driving sliding table mechanism comprises a sliding rail, a sliding rail cabin, a lead screw assembly, a driving motor, a tension and compression sensor and a displacement sensor, the motor drives a lead screw to enable the sliding rail to do reciprocating linear motion through sealing, the two ends of the sliding rail cabin are sealed, and plugging force and displacement data are collected through the sensor; the floating base is composed of a fixing plate, a floating positioning sleeve, a pressing disc and circumferentially distributed elastic adjusting assemblies, the connector female end is installed in the floating positioning sleeve, the elastic adjusting assemblies are distributed along the periphery of the floating positioning sleeve, when axial eccentricity exists in plugging of the connector male end and the connector female end, the floating positioning sleeve is automatically centered under the elastic effect, and interference of eccentric force is eliminated. According to the invention, high-precision, repeatable and controllable testing of the plugging performance of the connector in a high-pressure, high-salt and high-corrosion environment is realized.

This invention provides a pump body assembly, a compressor, and a refrigeration device. The pump body assembly includes a crankshaft, a pump body, a bearing, a piston, and connecting members. The bearing is sleeved on the crankshaft and located on one axial side of the pump body, forming a compression chamber with the pump body. The piston is sleeved on the crankshaft and located within the compression chamber. Multiple connecting members are arranged circumferentially along the pump body, passing through the bearing and connected to the pump body. Each connecting member includes a first connecting member and at least one second connecting member. The first connecting member is closer to the exhaust position of the compression chamber than the second connecting member, and is further away from the crankshaft axis than the second connecting member. The greater distance between the first connecting member and the crankshaft axis corresponding to the exhaust position significantly reduces the radial compression force exerted by the first connecting member on the inner wall of the compression chamber at the exhaust position, thereby reducing the localized protrusions formed on the inner wall of the compression chamber due to the first connecting member locking the pump body.

The invention relates to an electricity taking device for electric power measurement and a use method thereof, and belongs to the technical field of electric power measurement. According to the electricity taking equipment for electric power measurement and the using method thereof, the electricity taking equipment for electric power measurement comprises a three-phase electricity meter and an installation frame, the installation frame is fixedly connected to the surface of the three-phase electricity meter, a safety module and an electromagnetic switch are installed in the installation frame, and a protection module fixedly connected with the installation frame is installed on the surface of the safety module; the protection module is fixedly connected between the safety module and the mounting frame through the rubber frame, and high elasticity and damping characteristics of the protection module form a first shock absorption barrier, so that low-frequency vibration can be effectively absorbed. The capsule ring is sleeved on the surface of the connection position of the terminal of the fuse module, and the capsule ring is tightly attached to provide continuous radial pressing force, so that the terminal is prevented from loosening due to vibration, the stability of electrical connection is ensured, and the problem of connection failure caused by vibration is fundamentally solved.

This utility model relates to the field of rubber hose joint sealing technology, specifically a rubber hose joint sealing component, including a rubber sealing sleeve. A conical sealing sleeve is fixedly installed at one end of the rubber sealing sleeve, and a spiral compression ring is threadedly connected to the end of the conical sealing sleeve away from the rubber sealing sleeve. Multiple annular ridges are fixedly provided on the inner wall of the rubber sealing sleeve. When the spiral compression ring is rotated, the thread converts the axial displacement into radial compression. The conical surface of the conical sealing sleeve is compressed, generating an initial sealing force. When the fluid pressure inside the pipe increases, the rubber expands further under pressure, and the conical surface of the conical sealing sleeve engages more deeply with the thread of the spiral compression ring, forming a positive feedback seal. At the same time, the pipe and the annular ridges fit more tightly. Furthermore, when the spiral compression ring is rotated, its internal thread advances along the conical surface of the conical sealing sleeve, converting the axial force into radial compression force, forcing both the conical sealing sleeve and the rubber sealing sleeve to fit tightly against the pipe, thereby significantly improving the sealing performance of the rubber hose joint.

The utility model discloses a kind of paper sleeves for preventing metal coiled material from collapsing, comprising: main body cylinder, by multiple layers high-strength kraft paper adhesion;Radial reinforcement structure, is set to one end of the main body cylinder End, and it is distributed along circumference direction;Axial stiffener, along the axial extension of the main body cylinder, and it is set to the wall of the main body cylinder;Waterproof barrier layer, is set to the outer surface of the main body cylinder;Buffer layer, is set to the inner wall of the main body cylinder, the utility model relates to paper sleeve technical field.The paper sleeve for preventing metal coiled material from collapsing, radial compression strength is greatly promoted, can effectively resist the weight and external impact of heavy coiled material, the waterproof barrier layer of outer surface makes paper sleeve have waterproof capacity, effectively prevent inner circle indentation, scratch and other surface defects, improve the finished product quality of coiled material, embedded reinforcing ring or annular protruding portion is integrated with main body cylinder, stress is uniform, there is no risk of loosening and falling off.

A delivery assembly constituted of: a prosthetic valve comprising a plurality of intersecting struts, and a delivery apparatus comprising: a handle; a delivery shaft extending distally from the handle; and a flex sensing assembly, comprising: at least one flex sensor coupled to at least one of the plurality of struts; and a control unit in communication with the at least one flex sensor, wherein the prosthetic valve is movable between a radially compressed configuration and a radially expanded configuration, and wherein, responsive to an output of the at least one flex sensor, the control unit is configured to generate a signal indicative of a diameter of the prosthetic valve.

When a spiral-wound gasket is fitted into the gasket housing groove and tightened, the sealing performance of the spiral-wound gasket is maintained even if there is a difference in compression in the radial direction. [Solution] The spiral gasket 30 comprises multiple types of hoop material, each consisting of a strip-shaped metal material wound in a spiral shape, and a filler material 33 made of a softer material than these hoop materials, interposed between the hoop materials in the radial direction. The multiple types of hoop material include a first hoop portion 31 made of a first metal material with a first Young's modulus and a second hoop portion 32 made of a second metal material with a second Young's modulus lower than the first Young's modulus. It is used in areas where the compression amount of the second hoop portion 32 is greater than the compression amount of the first hoop portion 31.

The invention discloses a composite material with longitudinally distributed basalt fibers as well as a preparation method and application of the composite material. The composite material comprises at least one layer of base plate, wherein the base plate is formed by closely paving a plurality of prismatic unit bodies which are consistent in thickness and have regular polygonal cross sections; the unit bodies in the composite material are fixed into a whole through an adhesive; the unit body is composed of a plurality of basalt fibers which are longitudinally arranged; the fiber direction of the basalt fibers in the unit bodies is the same as the axis direction of the unit bodies and is perpendicular to the plate face of the base plate obtained by tiling the unit bodies. The core of the bulletproof armor plate is that the distribution direction of basalt fibers is changed from the radial direction to the axial direction, so that the problem that the radial pressure resistance is insufficient when traditional fibers are transversely distributed is solved, and the prepared bulletproof armor plate can convert impact force of bullets into pressure on the axial direction of the fibers; the extremely high axial compressive strength of the basalt fibers is fully utilized, so that the bulletproof efficiency is remarkably improved, and the light weight of the armor is achieved.

Bearing damper systems for gas turbine engines include a bearing structure and, a housing arranged outward from the bearing structure and defining a plurality of axially extending recesses arranged circumferentially about the axis. A set of energy dissipating elements are arranged within the recesses and are axially constrained therein. The energy dissipating elements are arranged to receive a radial outward force from the bearing structure. Each energy dissipating element may be radially compressed while being axially constrained in response to a radial movement of the bearing structure and enter a loaded state with energy associated with the compression is absorbed into the material of the energy dissipating element. Each energy dissipating element is configured to convert at least a portion of the absorbed energy to heat and is configured to return to an unloaded state after removal of the load from the bearing structure.

The invention discloses a laser welding strong co-processing method and tool for a stranded conductor. The method sequentially executes five working procedures that radial compression force and axial pretension are applied to the stranded conductor to construct quasi-materialization constraint, and preheating is conducted; laser welding is executed in the local inert gas microenvironment, and the temperature of a molten pool is monitored; a sacrificial absorption layer is arranged, a deionized water restraint layer is injected, and a flexible anvil block loaded with liquid metal-based magnetorheological fluid is arranged on the back of a conductor; the magnetic field intensity is dynamically adjusted according to the material of a processing area, reflection is inhibited by using carrier liquid acoustic impedance matching in a low-impedance metal section, a backing is in a quasi-solidified state to absorb shock wave residual energy through magnetic particle chaining in a high-impedance metal section, and laser shock peening is executed; and after strengthening, the compression force is unloaded to recover micro-pores among the strands, so that the through-layer drying of stranding gaps is realized. According to the invention, multi-physical field cooperation of machinery, fluid, acoustics and thermodynamics is realized, and the process stability and service reliability of the joint are improved.

An integral motor pump (IMP) or turbine (IMT) applicable to a low temperature process liquid, such as liquid hydrogen, includes an impeller having an annular ring of permanent magnets attached thereto passing in axial proximity to a plurality of stator coils. The magnet ring is radially bounded by inner and outer compression sleeves having coefficients of expansion (CTEs) respectively less than and greater than the CTE of the magnets. Unequal thermal contraction of the compression sleeves, when cooled by the process liquid, applies radial compression to the magnet ring, overcoming centrifugal forces and maintains the magnets in radial compression, thereby preventing fracturing or pulverizing of the magnets. The magnet ring can be a monolithic ring with alternating magnetic regions, a ring of closely abutting magnets, or a ring of discrete magnets surrounded by a barrier material having a CTE equal to the magnet CTE.

The utility model relates to the technical field of medical instruments, in particular to an artificial valve clamping piece and a conveying system. The artificial valve clamping piece comprises a clamping piece body, a connecting wire and a traction structure, the clamping piece body comprises a pipe body and a plurality of through holes formed in the pipe body, the pipe body is in a wave shape, and the two ends of the pipe body are closed to form a ring shape; the connecting wire penetrates into the tube body, and the end part of the connecting wire penetrates through the through hole in the tube body and then is suitable for being connected with the artificial valve; the traction structure comprises a traction wire, the traction wire is arranged in the pipe body in a penetrating mode through a through hole in the pipe body, and the traction wire is suitable for being connected with a conveying system. The clamping piece is of a periodic wave-shaped or fluctuating annular structure, can be fixed to the periphery of the outer surface of the artificial valve, can be radially compressed and expanded according to the size of the internal artificial valve, and is matched with the artificial valve to clamp the autologous valve leaflet, so that the artificial valve can be stably anchored at an accurate position without displacement, and meanwhile, the clamping piece can be used for clamping the autologous valve leaflet. The clamping device can reduce the occurrence risk of perivalvular leakage.

A hot line clamp for use in 15, 25 and 36 kV electrical power distribution networks is disclosed. The clamp includes an eyebolt receiver body configured to receive a cable or stirrup and a branch connection. In one embodiment, torque applied to a nut causes radial compression of a conductor against the body, distributing force uniformly. In another embodiment, torque applied to a screw produces axial compression, and the screw includes a fracture region that breaks at a predetermined torque threshold, indicating proper tightening and preventing over-torque. Both embodiments include a compression system that maintains electrical and mechanical integrity under thermal cycling.

The invention belongs to the technical field of ship propulsion system bearing structure design and vibration control, and discloses an isobaric expansion type stern bearing based on a negative Poisson's ratio topological lining structure, and a negative Poisson's ratio topological layer is composed of geometric topological units and generates tangential expansion deformation under the action of radial load. Through the negative Poisson's ratio effect, the radial compression load of the shaft system is converted into circumferential expansion response, isobaric expansion of a shaft-lining contact area is achieved, the effective bearing area is increased, and contact pressure distribution is homogenized. The topology lining is divided into a head end topology area, a transition area, a middle topology area, a transition area and a stern end topology area in the axial direction, and all the areas are matched with non-uniform distribution of shaft system bending, unbalance loading and lubricating states under the low-speed and heavy-load working conditions by regulating and controlling topological unit geometric parameters, equivalent Poisson ratios and negative Poisson ratio topological layer thicknesses. According to the invention, edge high pressure and local wear can be obviously reduced, water film stability is improved, bearing capacity and vibration and noise reduction performance of the stern bearing are improved, and service life is prolonged.

The utility model discloses a body outside prestress structure for reinforcing masonry structure house, including masonry mechanism and tightening mechanism, the masonry mechanism includes building block, multiple steel strand bundles transversely throughout the both ends of building block, tightening mechanism, the tightening mechanism includes multiple fixed line cover of the movable sleeve joint in multiple steel strand bundles both ends. In the utility model, after steel strand bundle transversely throughout building block, the fixed line cover is sleeved in the outside end part of steel strand bundle, passes through the rotation screw rod, drives two pressure blocks and inserts the inside of fixed line cover and moves back to, then the vertical embedding of axle is inserted in the stranding gap of steel strand bundle, and the radial compression of steel strand bundle line body is realized to pressure block simultaneously, and this double fixed structure effectively promotes the combination intensity of fixed line cover and steel strand bundle, can prevent both from separating in hydraulic tensioning operation, can also ensure the uniform transmission of load in the tensioning process, thereby guaranteeing the stable implementation of hydraulic system operation.

This utility model discloses a double-sealed sterile sealing cap and a burlap sack, including an inner cap, an outer cap, and a sealing assembly between them. A first annular sealing ridge on the edge of the inner cap and a first annular sealing groove on the outer cap are press-fitted to form an inner cavity, and a sealing ring enhances the sealing performance. A second annular sealing ridge is provided on the edge of the outer cap, on which an annular airbag is embedded. Inflated through the air inlet, it forms a radial compression sealing structure, achieving an outer layer seal. The sealing assembly also includes a vacuum valve penetrating the outer cap, allowing vacuum evacuation of the container through the air vents in the inner cap. A locking assembly consisting of a pressing block, an elastic connecting strip, and a latch is provided on the top of the outer cap to further strengthen the seal. This sealing cap, through its double-sealing structure and the synergistic effect of vacuum sealing and airbag sealing, effectively ensures the sterility of the burlap sack, prevents contamination, and improves ease of use and stability, making it suitable for the stringent requirements of sterile packaging in the medical field.

The utility model discloses an injection needle assembly, injection needle treatment head and treatment device relate to medical instrument technical field, wherein, injection needle assembly includes needle seat, connecting piece and fixed sleeve, the needle seat has and connects the end, the outer circumferential surface of needle seat is equipped with interface, the outer circumferential surface is located between the end surface of injection end and the end surface of connecting end, one end of connecting piece is equipped in interface, and with needle seat connects, the other end of connecting piece communicates with the liquid storage cavity of injection needle pipe, the fixed sleeve is slidably equipped in connecting piece, and is used for the radial compression of the sleeve joint place of connecting piece with interface, to with interface on connecting piece fixed, fixed sleeve with needle seat connects. The utility model provides technical scheme, to solve the problem of the injection needle assembly internal space occupation too much, needle seat movement stroke is limited and assembly complex in prior art because interface extends along needle seat axial direction.

This invention relates to the field of textile machinery technology, specifically to a loom motor braking device. The device mainly includes a brake drum, a U-shaped frame, a push plate, a brake plate composed of first and second clamping plates, a friction-increasing mechanism, an energy-storing spring, and a positioning mechanism. In the non-braking state, the positioning mechanism locks the position of the U-shaped frame and the push plate to compress the energy-storing spring. When braking is applied or there is an unexpected power outage, the positioning mechanism releases its lock, and the energy-storing spring releases its elastic force to drive the push plate and the U-shaped frame to slide relative to each other, causing the two clamping plates to clamp the brake drum. During clamping, the friction-increasing mechanism converts tangential friction force into radial compression displacement, achieving a self-locking force-increasing effect. This invention triggers braking through pure mechanical potential energy, solving the dependence of traditional devices on a power source and ensuring absolute safety in the event of a power outage. Simultaneously, the energy-storing spring provides elastic buffering, effectively absorbing reverse impact force, avoiding damage to the motor shaft system, and significantly improving braking efficiency and smoothness.

The application provides a kind of adjusting device of circuit breaker double gold mechanism, including adjusting motor, rotary transmission mechanism and adjusting mechanism.The adjusting motor is provided with motor rotating shaft.The adjusting mechanism is provided with adjusting rod.The rotary transmission mechanism is arranged between adjusting motor and adjusting mechanism.The rotary transmission mechanism includes a one-way bearing, a transmission connecting piece and two or more radial compression structures.The one-way bearing is sleeved on the motor rotating shaft.The transmission connecting piece is sleeved on the one-way bearing.Two or more radial compression structures are symmetrically arranged on the transmission connecting piece.The radial compression structure radially compresses the motor rotating shaft and can drive the transmission connecting piece to rotate with the motor rotating shaft.The adjusting device of circuit breaker double gold mechanism of the application is not only simple to operate, but also can keep the stability of adjusting time, improve production efficiency, improve product quality and avoid quality risk.

The utility model relates to a striped pipe with good elasticity in the field of striped pipes, which comprises a pipe body and a striped layer, the surface of the pipe body is fixedly connected with the inner wall of the striped layer, a reinforcing layer is arranged between the pipe body and the striped layer, the reinforcing layer is composed of two mutually crossed spiral reinforcing ribs, the two reinforcing ribs are crossed to form a rhombic grid, and the rhombic grid is arranged between the pipe body and the striped layer. A plurality of raised lines are integrally formed on the outer surface of the stripe layer, are parallel to the axis of the pipe body and are uniformly distributed around the axis of the pipe body, the side walls of the raised lines are symmetrical double inclined planes, the inclined planes on the two sides intersect to form an acute angle ridge line, equal-width grooves are formed between the adjacent raised lines, and the surface of the pipe body is combined with the bottom surface of the reinforcing layer through hot melting. By arranging the diamond-shaped grid reinforcing layer formed by the double-spiral reinforcing ribs in the crossed mode, the radial compression resistance and the axial torsional elasticity of the pipe body are effectively improved, even deformation compensation can be generated when diamond-shaped grids are pressed, the structural strength of the pipe body is guaranteed, and the multidirectional deformation recovery capacity is given to the stripe pipe.

A fitting assembly for fitting a first tube element to a second tube element comprising a fitting element defining a longitudinal axis and comprising a male portion adapted to engage the first tube element and a female portion adapted to be engaged by the second tube element; the female portion being opposite to the male portion along the longitudinal axis and further defining a seat; a bushing element adapted to be arranged radially external with respect to the male portion and the first tube element and to exert a radial compression on the first tube element; and a locking element adapted to limit the relative movements of the second tube element with respect to the fitting element when it engages the seat.

The invention relates to a compressor (10), in particular a radial or diagonal compressor. The compressor (10) comprises an outer compressor housing (11) and an inner compressor housing (12) providing a helical space (13). Further, the compressor (10) comprises a diffuser (14) having a diffuser channel (15) formed by a first side wall (151) and a second side wall (152). A first side wall (151) is provided by the inner compressor housing (12). A second side wall (152) is provided by the diffuser plate (16). A second side wall (152) formed by the diffuser plate (16) is a side wall of the diffuser channel (15) on the bearing housing side. The diffuser plate (16) comprises a curved outflow region (161) designed to deflect the flow after the flow exits from the diffuser channel (15). A first radial position (R1) of a first interface (S1) between the diffuser plate (16) and the outer compressor housing (11) is smaller than a second radial position (R2) of a second interface (S2) between the outer compressor housing (11) and the inner compressor housing (12).

An outlet box assembly includes a base and a connection assembly. The base defines a base through-hole. The connection assembly is configured to attach to the base through the base through-hole and includes a connector and an adapter. The connector includes a connector body. The connector body includes an inner surface that defines a passage with one or more internal threads positioned along the inner surface. The adapter includes one or more external threads configured to engage with the one or internal threads of the connector body. The adapter defines a longitudinally-extending adapter through-hole configured to receive one of a fitting or a tubing. The adapter further defines at least one longitudinal slot configured to allow the adapter to radially compress when the adapter is attached to the connector.

This product is an ice pack used, for example, for cooling the human body. As shown in the reference diagram, this product consists of a lid, a ring, an inner cylinder, and an outer cylinder. The inner cylinder can contain, for example, ice or water. The inner cylinder is made of an elastic material, and by compressing the inner cylinder radially, the ring can be fitted into the annular recess at the top of the inner cylinder. The ring can be connected to the inner circumferential surface of the cylindrical part of the lid. The outer circumferential surface of the cylindrical part of the lid can be connected to the inner circumferential surface of the outer cylinder. The outer cylinder shown in the reference diagram is positioned to cover the inner cylinder. The surface of the outer cylinder has a pattern formed on it, for example, consisting of multiple depressions.

Radial compressor (10, 50) for a fuel cell system, comprising a compressor housing (11, 51, 105), a compressor shaft (12) and a bearing arrangement comprising an axial foil bearing (15), wherein the compressor shaft (12) is axially supported in the compressor housing (11, 51, 105) via the axial foil bearing (15), wherein the compressor housing (11, 51, 105) comprises at least one integrally formed first cooling channel (25, 53, 102) and wherein the axial foil bearing (15) comprises a bearing disk (17, 52, 108) with at least one integrally formed second cooling channel (28, 54, 103, 104) for supplying cooling air to the axial foil bearing (15), wherein the first cooling channel (25, 53, 102) is connected to the second cooling channel (28, 54, 103, 104) is in fluidic contact, so that cooling air flows from the first cooling channel (25, 53, 102) to the second cooling channel (28, 54, 103, 104).

In a rotor for a fluid pump which is made radially compressible and expandable and has a hub and at least one conveying element which has a plurality of struts and at least one membrane which can be spanned between them, provision is made for a design in accordance with the invention which is as simple and inexpensive as possible that at least one first group of struts is pivotable in a pivot plane, starting from a common base, and can thus be spanned open in the manner of a fan, wherein the conveying element lies along the hub and contacts it over its full length in the expanded state to avoid a pressure loss at the margin of the conveying element between it and the hub and thus to realize an optimum efficiency.

An apparatus including an encoder scale disc and a mount, the encoder scale disc including radially and / or tangentially resilient features located radially outwards of a scale configured to interact with the mount so as to locate the scale disc on the mount. The encoder scale disc may include radially resilient features which may deviate radially from the disc. A method of manufacturing an apparatus including an encoder scale disc, including mounting a disc including radially resilient features to a device, wherein the radially resilient features of the disc interact with the device to place the disc in radial compression, mounting the disc on an apparatus, wherein mounting features on the device and the apparatus interact in the same manner to place the disc in radial compression.