9results about How to "Reasonable support" patented technology

The utility model provides a waist-back linkage mechanism and a seat. The waist-back linkage mechanism comprises a chair seat for supporting buttocks, a chair back assembly for supporting the back and a waist rest for supporting the waist, the chair back assembly and the waist rest are rotationally arranged relative to the chair seat, and the waist rest is also rotationally connected with the chair back assembly; the mechanism has a vertical state and an inclined state, and in the vertical state, the chair back assembly and the waist rest support the waist and the back forwards; in the inclined state, the chair back assembly and the waist rest are inclined, and the waist rest faces upwards for a human body to lie down; when the chair is switched from the vertical state to the inclined state, the chair back assembly drives the waist rest to move, and the included angle between the waist rest and the chair back assembly is reduced to change the relative posture of the waist rest and the chair back assembly, so that the chair adapts to the waist and back of a human body when the human body sits and lies; in the vertical state, the chair back assembly and the waist rest can be attached to the approximately S-shaped human body waist and back curve, in the inclined state, the included angle between the waist rest and the chair back assembly is reduced, the chair back assembly can be attached to the approximately linear human body waist and back curve when the human body leans backwards, and a better comfortable sitting and lying feeling is provided.

The utility model relates to medical image auxiliary device field discloses a head fixing cover for nuclear magnetic resonance examination. The fixing cover includes fixed base, head cover, head fixing assembly, buffer gasket and neck support pillow, is equipped with the sliding slot on the fixed base, and the neck support pillow bottom and sliding slot sliding cooperation, the head cover is connected with the fixed base through the pivot, and is equipped with the buckle, the head cover top sets up head fixing assembly, including thread sleeve, threaded column, handle and elastic pressure cap, and the buffer gasket is attached in the head cover inner wall. All structures are made of nonmetal, nonmagnetic material. The structure can realize multidirectional stable positioning to the head, has good adjustability and MRI compatibility, and is suitable for the fixed support of head in the process of nuclear magnetic resonance examination.

The present invention relates to the technical field of equipment intelligent diagnosis, and specifically discloses an intelligent diagnosis system for the health of the operating condition of an oxygen-making air separation system. The system mainly performs intelligent health diagnosis on the operating conditions of each subsystem of the oxygen generator to solve the problem of low health of the overall operating condition of the oxygen generator unit, and meets the requirements of stable operation and efficiency improvement of the oxygen generator unit. The system mainly includes seven modules: precooling system: energy efficiency diagnosis, energy balance; purification system: molecular sieve adsorption performance cracking diagnosis; expander system: expander energy efficiency diagnosis; main heat exchanger system: air separation cooling capacity balance diagnosis; distillation tower system: oxygen extraction rate, argon extraction rate; argon system: nitrogen plugging early warning diagnosis; comprehensive health diagnosis of the oxygen generator unit. During the operation of the oxygen generator unit, the present invention performs real-time health diagnosis on the operating conditions of each subsystem to provide the operator with the comprehensive health of the oxygen generator unit operation, so as to make a basis for operational adjustment in terms of safety, economy and stability.

The utility model discloses a kind of trench hydraulic support structures, to solve the problems of existing trench support structure, such as inconvenient depth expansion, unstable connection, unreasonable support and poor component matching precision.The structure includes upright, support plate, top surrounding purlin, bottom support, and middle support can also be set according to requirement.Upright inside is trapezoidal section double-track parallel guide rail, support plate both ends have T-shaped end head engaged with it, gap fit between the two and T-shaped end head with wear layer.Support plate is modular steel plate, and depth expansion can be realized by layer-by-layer installation through hydraulic propulsion device.Top surrounding purlin is H-shaped steel beam, fixed on the top of upright by connecting assembly;Bottom support is H-shaped steel component, connected to the bottom of upright.Middle support is telescopic sleeve type rod, installed when excavation depth is greater than or equal to 2m.The structure is stable in connection, reasonable in support, high in component matching precision, and can improve the safety, stability and construction efficiency of trench support.

The invention discloses a three-dimensional flow self-balancing multistage pump protection device which comprises a rectangular base and a three-dimensional flow self-balancing multistage pump body, a stand column is fixed to the lower wall face of the rectangular base, a base plate is fixed to the lower wall face of the stand column, and a connecting structure is arranged on the rectangular base. The three-dimensional flow self-balancing multi-stage pump body is arranged on the connecting structure, and a protection structure is installed on the rectangular base. The three-dimensional flow self-balancing multi-stage pump is reasonably supported through the connecting mechanism, a space is formed between the three-dimensional flow self-balancing multi-stage pump and the ground after supporting, rust and rot of the bottom of the three-dimensional flow self-balancing multi-stage pump are reduced, the three-dimensional flow self-balancing multi-stage pump is protected through the protection structure, the three-dimensional flow self-balancing multi-stage pump can be heated, and internal freezing is reduced.

The utility model discloses white corundum iron removal screening device, and the device is constituted by magnetic separator body, magnetic screening conveyer and material flat laying mechanism. The magnetic separator body is equipped with the rack for supporting, and the inside is provided with the iron impurity conveyer for receiving the iron impurity, and the front end places the white corundum hopper. The magnetic screening conveyer is fixed in the rack through the hanger, and the magnetic roller is driven to rotate by the driving motor, and then drives the conveyer belt to run, realizes the conveying of material, and the magnetic roller can adsorb the iron impurity. The material flat laying mechanism is installed at the top of the magnetic separator body, and the cylinder can adjust the telescopic shaft position according to the feedback of infrared distance sensor, makes the comb material grate comb the white corundum material on the conveyer belt and lay flat, improves the iron removal effect. The iron impurity falls into the iron impurity conveyer and is carried away after separating from the magnetic adsorption, and the pure white corundum material falls into the white corundum hopper, and the screening and iron removal operation is completed.

The utility model relates to the technical field of bandaging supporting devices, in particular to a nursing bandaging supporting device which comprises an inserting block, movable blocks are movably arranged on the inserting block in an array mode, spring telescopic rods are fixedly installed in the inserting block, the upper ends of the spring telescopic rods are fixedly connected with the lower sides of the movable blocks, and the upper ends of the spring telescopic rods are fixedly connected with the lower sides of the movable blocks. A flexible pad is fixedly installed on the upper side of the movable block, fixing feet are fixedly installed at the four corners of the lower end of the inserting block, sliding grooves are formed in the front side and the rear side in the inserting block in an array mode, sliding blocks are fixedly installed on the front side and the rear side of the lower end of the movable block, and the sliding blocks slide in the sliding grooves. By means of the movable block capable of moving, the shape of the movable block can be matched with the shape of a patient, the comfort of the patient in the using process is improved, the patient is reasonably supported, and the supporting performance of the device in the using process and the convenience in the binding process are improved; and the angle of the equipment body can be inclined.

The invention provides an ergonomic chair adapted to waist support, which comprises a chair back assembly and a waist rest assembly arranged on the chair back assembly in a lifting manner, the chair back assembly comprises a lifting mounting seat, and the waist rest assembly comprises a lifting motion seat arranged on the lifting mounting seat in a lifting manner; a first elastic piece for providing upward elastic force to the lifting motion seat is arranged between the lifting motion seat and the base; the chair back assembly further comprises a movement assembly and a waist rest part, the waist rest part is movably connected to the lifting movement seat through the movement assembly, a second elastic part is arranged between the movement assembly and the lifting movement seat, and the second elastic part always gives forward elastic force to the movement assembly and the waist rest part; the waist rest part responds to external force and ascends and descends and / or moves back and forth relative to the chair back assembly so as to be attached to the waist of the human body in a self-adaptive mode, especially when a user lies down, the waist rest part descends to the proper height and can also move back and forth to the proper position so as to be attached to and bear the waist of the human body, and comfort is improved.

The present invention provides a track bed for a turnout area and a track structure for a turnout area having the same. The track bed comprises: a ballast layer, the ballast layer has a sleeper support portion, the sleeper support portion comprises a solidification structure; the solidification structure comprises a plurality of first solidification areas and a second solidification area connected to the plurality of first solidification areas, wherein the plurality of first solidification areas are arranged at intervals in a horizontal direction perpendicular to the extension direction of the ballast layer. The technical solution of the present invention realizes the reasonable solidification of the track bed in the turnout area.