7results about How to "Direct force" patented technology

This utility model relates to the technical field of ground armor seam devices, and discloses an armor seam device, comprising: a dividing vertical plate, which is perpendicular to the ground and set between two sections; and an armor vertical plate assembly, which is set on and connected to the dividing vertical plate along a direction perpendicular to the ground. The armor vertical plate assembly includes two armor vertical plates, which are spaced apart along a direction parallel to and perpendicular to the dividing vertical plate to form an armor seam. The two armor vertical plates are connected by easily breakable rivets. Each armor vertical plate includes multiple planar segments and multiple arc-shaped segments. The planar segments are arranged along the length of the dividing vertical plate, and adjacent planar segments are at a preset angle and smoothly connected by the arc-shaped segments. Using this solution, the armor vertical plates are tightly bonded to the concrete edge of the seam, and the force is directly transmitted, providing good protection for the weak parts of the concrete edge.

The steel pipe truss comprises a concrete prefabricated bottom plate (1) and an upper chord steel pipe (2), the left side and the right side of the upper chord steel pipe (2) are each in an arc shape, the upper ends of the arcs on the left side and the right side are connected to form an upper straight line section, the lower ends of the arcs on the left side and the right side are connected to form a lower straight line section, and the lengths of the upper straight line section and the lower straight line section are both 15-80 mm; the prefabricated concrete bottom plate further comprises a web member (3), the web member (3) is formed by continuously bending a hollow steel pipe into a wave shape, the wave crest of the wave-shaped web member (3) is welded to the bottom face of the lower linear section of the upper chord steel pipe (2), and the wave trough part of the wave-shaped web member (3) is buried in the prefabricated concrete bottom plate (1). The hollow web member is creatively welded with the straight section at the bottom of the upper chord steel pipe, and the thickness of the steel plate at the lower straight section of the upper chord steel pipe is increased, so that the defect can be better avoided, and the welding strength is ensured.

The utility model discloses a coal feeding flow-aiding smoke locking device for a boiler, which comprises a coal inlet pipe, a middle pipe and a coal outlet pipe through which coal flow passes, and an air shaping device through which flow-aiding air entering from a flow-aiding air pipe passes in sequence. The central axes of the coal inlet pipe and the coal outlet pipe coincide, and the bottom opening of the middle pipe is slightly smaller than the upper opening. The shaping air device comprises a flow-assisting air pipe, an air bellow and a plurality of flow-guiding air pipes, the flow-assisting air pipe is vertically or tangentially communicated with the air bellow, the air bellow is fixed outside the middle pipe, the flow-guiding air pipes are positioned below the air bellow and uniformly distributed on the outer wall of the middle pipe, upper openings of the flow-guiding air pipes are communicated with an inner cavity of the air bellow, and bottom openings of the flow-guiding air pipes are uniformly distributed on the periphery of the coal outlet pipe. According to the utility model, the horizontal flow aiding air entering from the flow aiding air pipe is changed into the same direction as the coal flow after passing through the air bellow and the flow guide air pipe, and forms a common downward resultant force with the coal flow, so that hot air flowing upwards from the inside of the boiler can be effectively inhibited, and the coal feeder is protected.

This utility model relates to an unfolding and folding mechanism for a folding chair backrest, including a backrest rod and a rear cross rod assembly. The rear cross rod assembly includes a first main cross rod and a second main cross rod. One end of the first and second main cross rods is hinged to the upper part of the two backrest rods, and the other end is movably connected to the lower part of the backrest rods or to the chair frame. A support rod assembly is also provided between the first and second main cross rods. The support rod assembly includes a left support rod hinged to the first main cross rod and a right support rod hinged to the second main cross rod. The left and right support rods are hinged through a connecting block. When the rear cross rod assembly is unfolded, the ends of the left and right support rods abut against the connecting block. The first and second main cross rods, the left and right support rods, and the connecting block are located in the same plane. The structure of this utility model can reduce the deformation of the rods, improve the service life, and reduce the packaging volume after folding.

The utility model discloses an embedded type cross beam connecting structure of an inclined plane unit curtain wall, which relates to the technical field of building curtain walls and comprises a stand column, an upper cross beam, a lower cross beam and a glass panel. A first glass auxiliary frame is integrally formed at the front end of the lower cross beam, and the lower end of the glass panel is fixedly mounted on the lower cross beam through the first glass auxiliary frame; a second glass auxiliary frame is integrally formed at the front end of the upper cross beam, and the upper end of the glass panel is fixedly mounted on the upper cross beam through the second glass auxiliary frame; the rear ends of the upper cross beam and the lower cross beam are fixedly connected to the stand columns; according to the scheme, the upper cross beam and the lower cross beam are connected in an embedded mode, the rear end of the upper cross beam is embedded into the lower cross beam containing cavity and fixed through bolts, the contact area between the upper cross beam and the lower cross beam is greatly increased, the force transmission path is optimized, and force transmission is more direct and efficient; according to the connecting mode, under the action of external force such as vibration and wind load for a long time, the connecting stability can still be kept, the plate falling risk is effectively reduced, and the using safety of the curtain wall is guaranteed.

The application relates to the technical field of building steel structure processing and manufacturing, and discloses a wall connecting conversion pipe column, a pistol plate is arranged on a tile plate through a sealing plate I and a sealing plate II; a conversion side plate I is arranged on one side of the pistol plate on the sealing plate I side, and the conversion side plate I is connected with a stiffener plate I; a stiffener plate III is arranged on the pistol plate on the sealing plate II side; a sealing plate III is arranged at the end of the pistol plate on the sealing plate II side; a conversion side plate II is arranged on the tile plate; the conversion side plate I is connected with a cross web through a stiffener plate V; a conversion side plate III and a cross wing plate are arranged on the side of the conversion side plate I; a cover plate is arranged on the conversion side plate II and the conversion side plate III, and the cover plate is fixedly connected with the pistol plate; a bottom plate is arranged at the end of the pistol plate on the sealing plate I side, and a column top pipe is arranged on the pistol plate on the sealing plate II side; the column top pipe is connected with the tile plate, and the column top pipe is fixedly connected with the pistol plate and the stiffener plate III. The wall connecting conversion is perfectly realized, the ground wall and the steel pipe column are prevented from colliding, the welding between the pistol plate and the tile plate on the outside is easy, and the hidden welds of the numerous stiffener plates can also be welded.

The present application relates to the technical field of building construction, and discloses a self-balancing arch foot joint of a circular steel pipe concrete arch and a prestressed steel concrete beam and a design method, which comprises a circular steel pipe concrete arch, a lower chord steel beam, a pressure bearing ring plate, a prestressed cable, an overhead arch supporting column and a concrete block, the end of the lower chord steel beam is connected with the middle part of the overhead arch supporting column, the pressure bearing ring plate is connected with the end of the circular steel pipe concrete arch, the end of the circular steel pipe concrete arch is arranged to be inclined relative to the circular steel pipe concrete arch and the overhead arch supporting column, the pressure bearing ring plate is installed at the connection of the lower chord steel beam and the overhead arch supporting column, and the prestressed cable penetrates through the lower chord steel beam and is connected with the overhead arch supporting column. The present application has no influence on the buildings on both sides, can provide greater bearing capacity, is suitable for large-span overhead arches, can make the stress be uniformly transmitted, the prestressed cable penetrates through the connection, and the force transmission is direct.