16results about How to "Direct force" patented technology

The invention provides a main shaft structure which comprises a pipeline disc, a rear end seat, a shaft core, a water retaining ring and a rear shaft core end cover, the rear end seat is located on the periphery of at least part of a shaft section of the shaft core, the pipeline disc and the rear end seat are arranged at intervals in the axial direction, and the water retaining ring is further arranged between the pipeline disc and the rear end seat. At least part of the structure of the water retaining ring is located on the periphery of at least part of the structure of the shaft core, the rear shaft core end cover is arranged at the axial upper end of the shaft core, a containing cavity is formed in the upper end of the rear shaft core end cover, a water outlet hole is formed in the water retaining ring, and the water outlet hole is located below the containing cavity and can be communicated with the containing cavity. Water in the containing cavity can be discharged out of the main shaft structure through the water outlet hole. Water can be effectively prevented from entering the motor at the lower end of the spindle structure, the waterproof sealing effect on the motor of the spindle structure is achieved, and the problem that in the prior art, water easily enters the motor of an electric spindle, and potential safety hazards are caused is solved.

The utility model relates to an embedded-steel-bar-free connecting structure of a newly-added concrete wall body and an existing column, and belongs to the technical field of buildings. The side face section increasing columns are connected with newly-added concrete walls on the two outer sides of the existing frame column. Newly-added horizontally-distributed steel bars are arranged on the two sides of the side face section increasing column respectively, bypass the two sides of the existing frame column respectively, are anchored in the side face section increasing column in a crossed mode and then stretch into a newly-added concrete wall. The problems that according to a traditional method, the number of steel bar planting drill holes is large, and damage to a frame column of an existing structure is large are solved.

The utility model belongs to the technical field of aviation connection structures, and discloses an antenna connection structure on a fairing, which comprises an airtight box, the bottom of the airtight box is mounted on a fuselage skin, a through hole matched with the airtight box in structure is arranged at the position of the fairing skin corresponding to the airtight box, and the upper end of the airtight box extends out of the fairing skin through the through hole. The top of the airtight box is provided with an interface for installing an antenna. The airtight box extends out of the fairing, the bottom of the airtight box is connected with the fuselage reinforcer, and force transmission is direct; the end part of the airtight box is not directly connected with the fairing skin, but is rotationally connected through the L-shaped check ring and the rubber part, so that the requirement on the positioning precision of the fairing is low, and the manufacturability is good; the rubber pad is additionally arranged at the opening gap of the airtight box of the fairing, so that rainwater is prevented from flowing from the gap between the airtight box and the fairing skin, and the waterproof effect at the joint is not reduced.

The utility model discloses a connecting node of space grid structure and space grid structure, including first member, second member and force transfer member, first member extends along first plane, second member extends along second plane, second plane and first plane form angle setting, the force transfer member is equipped with the first member, second member extends along second plane, second plane and first plane form angle setting. The cross section of the first component and the cross section of the second component are box-shaped. The force transmission component is located between the first component and the second component, the cross section of the force transmission component is in a trapezoid shape, the trapezoid is provided with an upper bottom, a lower bottom, a first waist edge and a second waist edge, the first waist edge extends in the normal direction of the first plane, the second waist edge extends in the normal direction of the second plane, the first component is connected to the first waist edge, and the second component is connected to the second waist edge. According to the connecting node of the space grid structure and the space grid structure, the components can be located on the same plane to be connected with the force transmission components, so that the components are connected smoothly, force transmission is direct, and the reliability and construction convenience of the connecting node are improved.

The utility model discloses an overwater mobile construction platform which comprises a platform plate, a plurality of traction bases, a plurality of anchor piles, a plurality of traction devices and a lifting support, and the platform plate is used for floating on a river channel; each traction base is rotatably arranged on the platform plate through a vertically arranged rotating shaft, and the multiple traction bases are mutually spaced; the anchor piles are fixed to the two sides of a river channel correspondingly. The traction devices, the traction bases and the anchor piles are consistent in number and are in one-to-one correspondence, each traction device is mounted on the corresponding traction base, each traction device is connected with the corresponding anchor pile through a traction rope, and each traction device moves the platform plate by pulling the traction rope connected with the traction device; the lifting support is located on the platform plate and comprises a vertically-arranged stand column and an obliquely-arranged inclined strut. The construction platform can be moved by controlling the traction devices to pull the traction ropes connected with the traction devices, the traction base is pulled to rotate along with movement of the construction platform, force transmission is direct, and movement is accurate.

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 present invention relates to a concrete rod with annular prestress and a manufacturing method thereof, comprising an outer concrete rod body, a plurality of longitudinal ribs uniformly distributed inside the concrete rod body, and prestressed annular ribs wound around the outer periphery of the longitudinal ribs, characterized in that a core mold support ring is mounted on the longitudinal ribs, the inner diameter of the core mold support ring is larger than the diameter of the longitudinal ribs, and the inner convex point of the core mold support ring is tangent to the core mold. The advantages are: since the inner hole of the core mold support ring is larger than the diameter of the longitudinal ribs, the core mold support ring can be smoothly passed on the longitudinal ribs, and can be smoothly distributed along the longitudinal ribs before winding the annular ribs, the longitudinal ribs can be leaned against the inner side of the inner hole of the core mold support ring due to the tensioning force of the annular ribs, and the prestress of the annular ribs is directly transferred to the core mold through the core mold support ring, and the annular prestress is more uniform, thereby improving product quality and production efficiency.

The present application provides a beam-frame connection sealing corner box with a watertight interface, which belongs to the technical field of aircraft fuselage design. The beam-frame connection sealing corner box comprises a frame front bottom edge 1, a frame front beam web edge 2, a frame front skin edge 3, a frame web sealing edge 4, a frame edge strip sealing edge 5, a beam web sealing edge 6, a frame rear bottom edge 7, a frame rear beam web edge 8 and a frame rear skin edge 9. The corner box is inserted from one side of the frame through an opening of the frame web to connect the front and rear beams, and sealing edges are added at the frame web and the frame edge strip to make force transmission direct and achieve watertightness at the same time.

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 relates to a jacking and sliding construction device for a large-section double-layer cantilever steel box girder. The jacking and sliding construction device comprises a sliding shoe and a hydraulic crawler, wherein the sliding shoe is arranged in a sliding shoe distribution girder structure and used for providing jacking and lifting power for the steel box girder, and the hydraulic crawler is arranged on a sliding rail and used for providing sliding advancing power for the sliding shoe. The position control device can effectively achieve the effect of accurately controlling the position of the jacked and slipped steel box girder, so that the operation flexibility is improved, the construction period is shortened, the economic benefit is high, and the construction cost is effectively reduced.

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 present invention provides a novel floor horizontal support structure, wherein the horizontal support is fixedly connected to the floor steel beam, and the horizontal support is composed of a plurality of horizontally arranged steel belts, wherein the thickness of the steel belts is equivalent to the thickness of the flange plate of the floor steel beam, and the width of each steel belt is selectively customized according to the stress requirements of the structure; one end of the steel belt of the horizontal support is horizontally connected to the upper flange of the floor steel beam, and the other end is connected to the frame column; bolts are arranged on the surface of the steel belt along its length direction, and a construction method of the novel floor horizontal support structure is also provided, wherein the intersection point of the floor horizontal support and the steel beam is found; a steel plate having a thickness equivalent to that of the flange plate of the steel beam is cut into steel belts, one end of the steel belt is horizontally aligned with the upper flange plate of the steel beam, and is pre-connected with the left side of the upper flange of the steel beam by installing an anchor plate, and the other end of the steel belt is connected to the frame column; a lining plate is arranged on the lower side of the connection node between the steel belt and the upper flange plate, and both ends of the steel belt support are welded to the structure with equal strength; bolts are fixed to the upper surface of the steel belt, and the connection structure of the present invention has low deadweight, reliable stress, and is not affected by the secondary beams of the floor.

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.