2432results about How to "Avoid swinging" patented technology

Prosthetic mitral heart valves and anchors for use with such valves are provided that allow for an improved implantation procedure. In various embodiments, a helical anchoring device is formed as a coiled or twisted anchor that includes one or more turns that twist or curve around a central axis. Curved arms attached to the frame of the valve guide the helical anchoring device into position beneath the valve leaflets and around the mitral valve annulus as it exits the delivery catheter, and the expandable prosthetic mitral valve is held within the coil of the anchoring device. The anchoring device and the valve can be delivered together, simplifying the valve replacement procedure.

A compact fan motor including a motor body having a tubular case accommodating a rotor, a permanent magnet, and brushes, and a pair of spring terminals that are connected to the brushes, sticks out from a peripheral wall of the tubular case, and has elasticity in a direction perpendicular to an axis of rotation of a shaft; an impeller fixed to the shaft sticking out from a front end of the tubular case; a holder having a case accommodating portion that is provided in a housing accommodating the motor body and impeller and has an inner wall surface extending in the direction of the axis of rotation of the shaft, and a motor body insertion opening provided at an edge of the case accommodating portion; and a pair of conductors provided on the inner wall surface of the holder while contacting with the spring terminals.

An omni-directional wheel includes a hub rotatable about a wheel axis and a first row of angled rollers about the hub each rotatably supported by the hub. There is at least a second row of angled rollers about the hub each also rotatably supported by the hub. The rollers of the second row are axially offset along the wheel axis from the first row, and rotationally offset from the first row about the wheel axis, and not coaxial with the rollers of the first row.

An ultrasonic sealing apparatus comprises at least one horn having an elongated sealing face for sealing a packing material. Plural converters are erected on a side of the horn opposite to the sealing face for resonating the horn with a vibrating frequency. The ultrasonic sealing apparatus has a length that is one wavelength of the vibrating frequency and is fixed in position to a sealing jaw at a nodal plane of the vibrating frequency.

A child enclosure apparatus that includes a hub assembly, a base assembly having four base legs in an X-shaped configuration, a side structure having four side posts, an upper assembly having four pairs of upper arms with each pair connected with medial latch connectors, lower corner assemblies, each having a pair of plates that are pivotally mounted to a side post and a pair of base legs, upper corner assemblies, each having two pair of plates that are configured at a right angle to each other, and cables extending from the base assemblies, through the side posts and being connected to the upper arms and to the latch connectors. The enclosure apparatus is operated by linear movement of the hub assembly, either by a motor assembly or manually, to cause simultaneous movement of the base legs, the upper arms and the latch connectors between opened and folded positions by tensioning the cables. The lower corner assemblies are pivotally connected to the side posts and the base legs so as to prevent unintended opening of the enclosure from a folded position.

An electronic apparatus (1) for control or training of an animal includes a housing (2) supported by a strap against the animal's skin, first and second stimulus probes (5) connected to a surface (9) of the housing, and control circuitry in the housing including output terminals selectively producing aversive stimulus. A stabilizing member (7) is connected to a location of the surface (9) of the housing that is offset from a straight line between the first and second stimulus electrodes (5) so that conductive tips of the first and second stimulus electrodes and a tip of the stabilizing post define a triangle, whereby the conductive tips of the first and second stimulus electrodes and the tip of the stabilizing member are pressed against the skin of the animal and prevent rocking of the conductive tips of the first and second stimulus electrodes against the skin of the animal to reduce the occurrence and/or severity of skin sores.

The present invention relates to a two-dimension large-range laser displacement/deflection measuring equipment and its measuring method. Said equipment includes laser transmitting portion and two-dimension laser speckle receiving and measuring portion. The laser transmitting portion is formed-form laser and mounting frame, and said laser mounting frame is a variable damping hinge structure, and the two-dimension laser speckle receiving and measuring portion consists of receiving screen, camera and luminous or non-luminous mark. Said invention also provides the concrete steps of its measurement method.

The invention relates to special engineering mechanical equipment spreading previously stirred concrete on a designated working face, in particular to a concrete spreader and a spreading method thereof. The concrete spreader comprises a main track unit, a large travelling crane, a small travelling crane, a spreading main machine and a hopper, wherein the large travelling crane longitudinally reciprocates on the main track unit by dint of the driving of a drive device; the small travelling crane horizontally reciprocates on the large travelling crane by dint of the driving of the drive device;the spreading main machine comprises a main stand, a stock bin lifting platform and a lifting oil cylinder, wherein the main stand is connected with the small travelling crane and the stock bin lifting platform can be lifted along the main stand; the hopper is arranged on the lower part of the stock bin lifting platform, a discharge outlet and a feed inlet of the hopper are eccentric at least 300mm, and the hopper reciprocates at an angle of 180 degrees by dint of the driving of a speed reduction motor. The invention realizes the omnibearing spread by dint of the longitudinal motion of the large travelling crane on the main track unit, the horizontal motion of the small travelling crane on the large travelling crane, the up-and-down motion of the stock bin lifting platform on the main stand and the self-rotation motion of the hopper and has larger spreading space without a spreading dead angle.

The invention discloses a hoisting device for maintenance of power equipment. The hoisting device for maintenance of the power equipment comprises a supporting base, a lead screw, a sliding block, a balancing weight, a clamping mechanism, a winding roller, a rigid pulling rope, a supporting stand column, a supporting cross rod, a supporting cross beam and a lifting frame, wherein the sliding block is rotatably arranged on the lead screw in a threaded connection mode; the balancing weight is arranged on the upper surface of the sliding block; and one end of the rigid pulling rope is connected with the winding roller, and the other end of the rigid pulling rope winds across a first guiding pulley and a second guiding pulley, penetrates through a channel formed between a first limiting pulley and a second limiting pulley, and then is connected with the clamping mechanism. By adoption of the hoisting device for maintenance of the power equipment, the power equipment can be clamped and fixed and can also be hoisted rapidly; and the position of the balancing weight can be adjusted conveniently, so that the balancing effect of the balancing weight can be brought into full play, and the safety is high.

A restraining and protection device for the protection and the restraint of neckstrap-suspended equipment used in the field, comprises a flexible cover of sufficient size to envelope most surfaces of the equipment. Attached to or associated with the cover is one strap that extend around the user's waist. A second strap is attached to the equipment so as to extend around the user's neck, or alternatively over one of the user's shoulder as desired. The ability to change the configuration of the straps is accomplished by providing an interconnection between the straps such that the waist strap can loop through the neck strap when the device is in a harness-type configuration and separated to change the device to an over-the-shoulder configuration with the equipment positioned proximate the user's hip.

An exercise apparatus is provided. The exercise apparatus includes a base disposed on a surface, a bicycle frame having a first side and a second side and pivotally mounted on the base, a first supporter disposed on the first side, and a simulating device disposed on the bicycle frame to simulate a real bicycle riding. While the bicycle frame is swinging to the first side, the first supporter contacts the base to prevent the bicycle frame from swinging beyond a specific extent.

The invention relates to an unlocking device of a drawer panel. The unlocking device of the drawer panel comprises an adjustable seat which is arranged in the side plate of the drawer. The panel of a drawer is connected with the adjustable seat through connecting pieces. Locking mechanisms which are used for locking the connecting pieces is arranged on the adjustable seat. Each locking mechanism comprises an eccentric cam. The unlocking device of the drawer panel is characterized in that the panel is connected with more than two connecting pieces, more than two locking mechanisms are arranged on the adjustable seat, and a gear unlocking mechanism which is used for simultaneously unlocking the more than two connecting pieces is additionally arranged on the adjustable seat; and the gear unlocking mechanism comprises a movable piece and at least one unlocking gear, a gear rack is arranged on the movable piece corresponding to the unlocking gear and the movable piece is connected with the unlocking gear through the gear rack in a driving way. Since the unlocking gear is matched with the gear rack arranged on the movable piece to realize the simultaneous unlocking and disassembling of the panel and the normal working of the locking mechanism is not influenced by the length of the panel connecting pieces and the synchronism and asynchronism of inserting the panel connecting pieces, the goals of synchronously and asynchronously locking the entire drawer panel and synchronously unlocking the drawer panel are really realized and the flexibility is very high.

The invention discloses a spreader stabilizing mechanism of a container gantry crane, comprising a drum group, a pulley block, a spreader upper frame and a steel wire rope group wound on the drum group and the pulley block; the steel wire rope forms four congruent inverse triangles at the space between the spreader upper frame and a pulley frame; the bottom points of the four inverse triangles are distributed at the four corners of the spreader upper frame symmetrically; included angles which are formed by the planes of the four inverse triangles and the moving direction of a cart and a trolley are all acute angles. Therefore, in the moving direction of the cart and the trolley, the motion damping of the four space triangles exists, thus reducing the swing of the spreader; when the load of the spreader is not balance and the swing of opposite angles is generated, namely, twisting and vibration are generated, the space triangle forms the motion damping in the diagonal direction of the upper surface of the spreader upper frame and forms damping component in three directions of the space, thus offsetting the swing of the opposite angles. The invention has simple structure, convenient maintenance and use and high safe reliability.

A transmission stabilization device applied to dual-shaft system for stabilizing and smoothening the transmission and reducing wear of the components. The transmission stabilization device includes a first rotary shaft, a second rotary shaft and a transmission unit, which are assembled with each other. Each of the first and second rotary shafts has a fixed section mounted on an electronic apparatus, a pivoted section assembled with a torque module and a connection section. The transmission unit is drivingly engaged with the connection sections. The transmission unit is mounted on a fixing shaft. When the first or second rotary shaft rotates, the transmission unit is moved along the fixing shaft with the rotation of the first or second rotary shaft. The transmission stabilization device can prevent the transmission unit from swinging so as to overcome the problem of retardation of transmission of the conventional device.

The invention provides a steel pipe inner and outer wall cleaning machine, and belongs to the technical field of building materials. The steel pipe inner and outer wall cleaning machine comprises a cleaning machine base, a feeding and conveying component, an outer wall cleaning component, a centering and guiding component, a discharging and conveying component and an inner wall cleaning component.The feeding and conveying component, the outer wall cleaning component, the centering and guiding component, the discharging and conveying component and the inner wall cleaning component are all arranged on the cleaning machine base and are arranged from left to right in sequence. According to the steel pipe inner and outer wall cleaning machine, the outer wall of a steel pipe is firstly cleaned,then the inner wall of the steel pipe is cleaned with the cleaned outer wall of the steel pipe as the standard, the cleaning effect of the inner wall of the steel pipe is especially good, and use ofa subsequent formed pipeline is convenient; and dust, rust blocks and other impurities on the inner wall and the outer wall of the steel pipe are effectively removed in a physical manner, and liquid in the subsequent formed pipeline cannot be contaminated.

The invention provides a multi-robot angle control surround method based on a fuzzy inference system. According to the method, a multi-robot surround strategy is realized by adopting two layers of fuzzy inference; the first layer of fuzzy inference system is a decision layer which is used for identifying the state of a surround task and selecting a corresponding multi-robot strategy; when surround persons are in the search state, the decision layer outputs Search through fuzzy inference, and the surround persons perform the search strategy; when the surround persons are in the approach state, the decision layer outputs Approach, i.e. the surround persons perform the approach strategy; and when the surround persons are in the surround state, the decision layer outputs Surround, and the surround persons perform the surround strategy. The experiment is performed by using the simulation programs, the environment of the simulation programs is proportionally reduced according to the parameters in the actual environment, and movement of robots meets the kinematic model constraint. Multiple times of the simulation experiment is performed under different initial conditions so that feasibility of the algorithm is verified and great effect is achieved.

A novel lantern lock for holding a light and its light shade in a fixed position when mounted on standard lighting equipment is presented. The lantern lock includes a socket assembly with a light bulb socket and power cord. A spreading frame is fixedly attached to the socket assembly, and when a shade is mounted thereon, holds the shade in a fixed position relative to the socket assembly. In one embodiment, the socket assembly is mounted on a base and mounting stud is physically attached to the socket assembly. In an alternative embodiment, a clamp clamps at least a portion of the socket assembly, and the mounting stud is attached to the clamp. The mounting stud is compatible with standard lighting equipment mounting devices, such as a C-clamp mountable on an extension arm of a C-stand. The C-clamp may be rotated in any position to fix the position of the mounting stud, and to thereby fix the position of the light.

The invention provides double-layer mechanical type stereoscopic bicycle parking equipment which comprises an upper-layer parking shelf, a lower-layer parking shelf and a vertical bracket, wherein thefront and rear wheels of a single bicycle which is inserted into the two parking shelves are constrained by using frame type front and rear wheel fixing brackets in a two-point front and rear supportmanner on the two parking shelves respectively; the frame type front and rear wheel fixing brackets are fixedly connected with support racks; the parking density of one layer of bicycles on the lower-layer parking shelf is adjusted through roller devices and sliding tracks at the bottom of the lower-layer parking shelf; lifting of the upper-layer parking shelf along a vertical bracket is completed on the upper-layer parking shelf through a pulley pack sliding block lifting system which is arranged inside the vertical bracket and is based on a pure mechanical structure consisting of moving andfixed pulleys; and the positions of the shelves are locked by inserting one end of a spring cotter device which is mounted inwards in the length direction of a lifting support rack into a positioningcutter hole formed in the vertical bracket. The pure mechanical pulley pack lifting system of the equipment is easy and smooth to operate, bicycles on an upper layer can be parked safely without jumping, and the equipment is concise and simple in overall structure and easy to implement and has the optimal cost performance when being compared with other similar equipment in the market.

A pet door offering ingress or egress through a structural member. A lock mechanism in the pet door allows the pet owner to restrict ingress and/or egress as desired. The pet door features a dual control system that simplifies the setting of the lock. Each control corresponds to movement of the flap in one direction. The dual control system is also designed to be easier to access than a conventional pet door lock mechanism and to be less susceptible to unintentional adjustment resulting from incidental contact with the controls.