7results about How to "Meet support requirements" patented technology

The invention relates to the technical field of wind tunnel test devices, in particular to a contraction section structure and a wind tunnel. The contraction section structure comprises a contraction section flange, the contraction section flange is provided with a contraction section molded surface, the contraction section molded surface is arranged to be a gradually-contracted section, supporting assemblies are arranged in the contraction section flange, the supporting assemblies are arranged in the length direction of the contraction section flange at intervals, and the supporting assemblies are used for providing supporting space for the outer frame and conducting flow guiding. The contraction section structure reduces structural complexity and manufacturing cost on the premise of meeting test requirements, has good machining feasibility and installation convenience while ensuring basic flow field performance, and can be widely applied to wind tunnel design in a limited space.

The application discloses a railway communication station multi-gear self-locking supporting device and a use method. The device comprises a fixed base, a rotating shaft, a support, a limiting block, spring top beads I and spring top beads II. Initially, the support is in a vertical state. When the communication station needs to be placed on a desktop for use, the rotating shaft is pulled outward, the self-locking convex points on the shaft are separated from the self-locking holes, the support is rotated, and the spring top beads are contracted. When reaching the use position, the spring top beads sink into the new grooves of the rotating shaft to press the rotating shaft. The self-locking convex points of the rotating shaft sink into the corresponding self-locking holes, and the spring top beads sink into the positioning grooves, thereby completing the self-locking of the support, supporting the communication station and facilitating work. When the communication station needs to be carried, the above operation is repeated, the support is rotated in the opposite direction, and the initial state is restored, so that the communication station can be carried. The application guarantees the convenience of carrying the communication station and a good screen use angle during the use of the communication station. Meanwhile, the support can be self-locked, thereby guaranteeing the stability of the use of the equipment.

The utility model relates to a bearing device and a children product, the bearing device has a first use state and a second use state, the bearing device comprises a support frame; the enclosure frame is rotationally connected to the supporting frame; the bearing mechanism comprises a bearing plate and a cloth cover connected between the bearing plate and the enclosure frame; the linkage mechanism is arranged between the enclosure frame and the bearing plate; when the first use state is converted into the second use state, the enclosure frame rotates relative to the supporting frame and drives the position of the bearing plate to be adjusted through the linkage mechanism, so that after the state of the bearing device is changed, the position of the bearing plate can meet the bearing and protection requirements in the corresponding state. The bearing device is small in number of overall components, simple in structure and convenient to switch among a plurality of use states; the bearing device is detachably or non-detachably arranged on the base to form children products with different functions, so that different supporting and using requirements of children are met.

The utility model relates to the technical field of building engineering, disclose a kind of building engineering reinforcing steel stirrup, including a group of parallelly arranged arc stirrup body, a group of connecting rods are arranged in the inside of a group of arc stirrup body, the front and rear end of the outside of each connecting rod is equipped with thread groove, the outside of connecting rod is located at thread groove and is equipped with a group of nut, both ends of each arc stirrup body are equipped with support foot assembly;Arc stirrup body includes stirrup body.The utility model can adjust the spacing between two arc stirrup bodies by connecting rod, thread groove and nut, to satisfy the support requirement to different reinforcing steel;By adjusting the height of four support foot assemblies, when the height of support surface is not same, it is guaranteed that arc stirrup body is horizontal, to satisfy the demand of reinforcing steel support;And the angle of support foot assembly and arc stirrup body can be adjusted, so that when there is no space position in vertical direction to place cushion block, arc stirrup body can still be kept horizontal.

This invention discloses an integrated construction equipment and method for the subgrade material of a rockfill dam. The equipment includes an engineering vehicle 1, a paving and leveling mechanism 2, a hydraulic compaction mechanism 3, a follower vehicle 4, a traction frame 5, a cantilever mechanism 6, and a formwork mechanism 7. The engineering vehicle 1 drives the paving and leveling mechanism 2 at its front end forward, dispersing the subgrade material to both sides. Subsequently, the hydraulic compaction mechanism 3 at its rear compacts the subgrade material through high-frequency vibration. The follower vehicle 4, connected to the engineering vehicle 1 via the traction frame 5, moves synchronously. The cantilever mechanism 6 on the follower vehicle 4 erects the formwork mechanism 7 above the slope. The first formwork 72 of the formwork mechanism 7 supports the subgrade material working area, and the second formwork 73 supports the mortar layer, thus simultaneously completing the integrated operation of subgrade material paving, leveling, compaction, and slope mortar layer support. This construction equipment significantly improves construction efficiency, and through mechanized and precise control, it significantly enhances construction quality and safety.

This invention belongs to the field of power equipment technology, and particularly relates to a towable mobile protective assembly, comprising: a base with lifting lugs on its side walls and a set of wheels on its bottom; a protective box mounted on the base; and an internal circulation mechanism housed within the protective box for internal air circulation and heat dissipation of the high and low voltage switchgear. The base has a hollow structure, and a lightweight support unit is installed inside. This internal circulation heat dissipation mode prevents external air from directly entering the equipment, effectively preventing contamination from dust, moisture, and other impurities. The lightweight support unit of the base effectively reduces the burden of movement.

This invention discloses a high-strength corrosion-resistant aluminum alloy foil for honeycomb cores and its preparation method. The aluminum alloy foil comprises the following components: Si 0.10-0.30%, Fe 0.20-0.40%, Mn 1.0-1.5%, Mg 0.3-0.8%, Cu≤0.05%, Zr 0.10-0.20%, La and Ce mixed rare earth 0.03-0.10%, Zn≤0.05%, other individual impurities ≤0.03%, and the total impurity content ≤0.15%; the balance is Al; and the mass ratio of Fe to Si is 1.5-2.0; the aluminum alloy foil matrix has 5-50 nm Al3Zr precipitates dispersedly distributed, with an average grain size of less than 20 μm. This invention achieves a tensile strength of up to 270 MPa, an intergranular corrosion depth of less than 10 μm, fine and uniform grains by forming Al3Zr precipitates through Zr microalloying, combined with Fe / Si ratio control and rare earth purification, effectively eliminating orange peel defects and improving the rolling performance of ultrathin foils.