19results about How to "Good strength" patented technology

The utility model belongs to the technical field of anti-collision protection devices, and provides a traffic transportation anti-collision protection device which comprises a bottom plate, a vertical plate is fixedly installed on one side of the bottom plate, and three supporting rods are connected between the bottom plate and the vertical plate. The three supporting rods are arranged between the bottom plate and the vertical plate, so that the vertical plate is stressed more strongly, meanwhile, the protection plate is arranged on one side of the vertical plate, a vehicle is protected through the protection plate, the first spring dampers are arranged between the protection plate and the vertical plate, and meanwhile, the rubber plate and the air bag are arranged on one side of the protection plate. The buffering effect on a vehicle is achieved, the situation that the vehicle directly impacts on the guardrail to cause damage is avoided, a groove is formed in one side of a vertical plate, a sliding block and a second spring damper are arranged in the groove, meanwhile, a force unloading rod is hinged between the sliding block and a protection plate, after the protection plate is impacted, force can be transmitted to the second spring damper through the force unloading rod, and the protection plate is prevented from being damaged. And the protection capability of the device is further improved.

The utility model discloses a fireproof door closer reverse installation structure which comprises an adapter seat, a reverse installation plate and a door closer, the adapter seat is fixed on a door frame fixing keel on the outer side of a door frame door pushing face through an anchor bolt, the bottom end of the adapter seat is flush with the bottom end of the door frame door pushing face, the reverse installation plate is an L-shaped plate, and the door closer is arranged on the reverse installation plate. The outer section of a transverse plate is fixed on the adapter seat through a connecting bolt, the inner section of the transverse plate abuts against the bottom end face of the door frame, a vertical plate of the transverse plate vertically extends downwards at the outer end of the transverse plate, the door closer is arranged on the closing side of the door leaf, a machine body of the door closer is fixed on the door leaf, and a connecting seat at the tail end of a connecting rod of the door closer is fixed on the vertical plate of the reverse mounting plate. The adapter is additionally arranged in front of the door frame fixing keel (or the masonry wall lintel), a stable rooting point is provided for the door closer, the door closer is further stably installed between the door pushing face of the closing side of the door leaf and the adapter through the reverse installation plate, it is guaranteed that the door closer is good in stress, the service life of the door closer is prolonged, and construction quality is improved.

The invention discloses an offshore platform deck piece lifting point generation method, which belongs to the technical field of ship and ocean engineering, is used for generating lifting points of an offshore platform deck piece, and comprises the following steps: calculating the gravity center of the deck piece, selecting a single crane or double cranes according to the weight of the deck piece, and selecting the lifting points of the single crane by taking the gravity center as a circle center. Constructing a lifting point circle by taking the calibrated distance set as a radius; for double-crane lifting point selection, a deck piece is divided into two areas, the center of a lifting point circle is arranged in each area, and the lifting point circle is constructed with the calibrated distance set as the radius; and the lifting point circles and the rod pieces form intersection points, four lifting points are selected for each lifting point circle every time to serve as candidates for traversal, and through lifting point reasonability judgment, deck piece lifting points are finally generated. According to the method, the lifting point circle is constructed, candidate points are traversed, and project requirements can be quickly responded; through an auxiliary positioning mechanism, it is ensured that the method can still be effectively applied when facing various complex and non-standard deck sheet structures, and the robustness of the method is improved.

The utility model discloses a working mechanism with multiple rotating heads, which solves the technical problems of low working efficiency and poor effect of an electric tool with a single working head in the prior art. The multi-rotating-head working mechanism comprises a driver, a plurality of rotating heads and a planetary gear assembly, the planetary gear assembly comprises a main shaft, a planet carrier, a plurality of planetary gears, a plurality of rotating shafts and fixedly-arranged meshing units, the rotating shafts are rotatably arranged on the planet carrier, and the meshing units are fixedly arranged on the main shaft. The planetary gears, the rotating shaft and the rotating head rotate synchronously, the rotating head is arranged below the planet carrier, the driver is in transmission connection with the main shaft, the planet carrier is installed on the main shaft and rotates synchronously with the main shaft, and the meshing unit is meshed with the multiple planetary gears. And the planet carrier rotates to drive the plurality of planet gears to revolve around the axis of the main shaft and enable the plurality of planet gears to rotate around the axis of the rotating shaft. The utility model further provides an electric tool which adopts the multi-rotating-head working mechanism in the technical scheme.

The invention relates to a wood beam external reinforcement device and a connecting method thereof, and aims to improve the bearing capacity and durability of a wood beam and protect the historical value of a wood structure building. The device comprises a wood beam, a U-shaped steel plate clamp, a split bolt, a nut, a positioning block, an anchoring block and a reinforcing steel bar. The U-shaped steel plate clamp is sleeved at the anchoring hole of the wood beam, limiting holes are formed in two side walls of the U-shaped steel plate clamp, and split bolts and nuts penetrate through the limiting holes and the anchoring hole to connect the wood beam and the steel plate. The reinforcing steel bar penetrates through the anchoring block, and two ends are fixed through anchoring screws to form a whole. The technical scheme has the characteristics of firm connection, good mechanical property, strong shock resistance and the like, and is suitable for reinforcement and reconstruction of wood structure buildings.

The utility model relates to the field of engineering, and provides an assembly part which comprises a main body part and a lock catch part, the main body part is provided with a side wall, and the lock catch part is connected with the main body part; the m lock catch pieces can be jointly clamped and locked to form a locking knot, the locking knot is used for connecting the m assembly pieces, and m is a positive integer larger than or equal to 3; meanwhile, the utility model further provides an assembly comprising a plurality of the assembly parts, and the assembly comprises the plurality of the assembly parts which are arranged in sequence and are connected through locking knots. According to the utility model, the assembly body is formed by the assembled assembly parts composed of a large number of standard parts, so that the connection is reliable, the stability is strong, and the assembly body can be widely applied to various different engineering scenes.

This invention relates to the field of civil engineering technology, and provides a double-layer thin-walled pressurized column component, comprising an outer column shell, an inner cylinder, and a pressurization container. The outer column shell has a hollow structure; the inner cylinder is a cylindrical structure with open ends, disposed inside the outer column shell, with its axis parallel to the axis of the outer column shell, and a gap between the outer side wall of the inner cylinder and the inner side wall of the outer column shell; the pressurization container is disposed inside the inner cylinder, and is used to fill a pressure medium and expands and deforms as the internal pressure of the pressure medium increases, thereby generating compressive force on both ends of the outer column shell. This design solves the problems in related technologies where pressure-bearing components are prone to bending or buckling instability when bearing external pressure, and the low material utilization efficiency caused by the cylinder wall of the pressure-bearing component simultaneously bearing axial and circumferential stresses.

The invention discloses a KR stirring head with a locking function at the end, and relates to the technical field of KR stirring heads. The KR stirring head with the locking function at the end comprises a stirring connector, the stirring connector comprises a flange plate, a locking sleeve is fixedly connected to the bottom of the flange plate, a stirring core rod is inserted into the locking sleeve, the surface of the stirring core rod is sleeved with a refractory layer, a heat dissipation sleeve is fixedly connected to the top of the refractory layer, and the heat dissipation sleeve is fixedly connected to the bottom of the flange plate. The heat dissipation sleeve comprises a sleeve seat and a heat dissipation mesh enclosure, the bottom of the sleeve seat is fixedly connected with the top of the fireproof layer, and the bottom of the heat dissipation mesh enclosure is fixedly connected with the top of the sleeve seat. According to the KR stirring head with the locking function at the end, by arranging the friction sleeve, the blade frame gas guide pipe and the deformation layer between the fireproof layer and the core rod, the friction force is improved by utilizing the heating expansion of the friction sleeve, the probability of loosening and falling is reduced, the adverse effect of the thermal shock phenomenon is reduced, and the reliability of the stirring head is improved.

The invention discloses a combined oil tank which comprises a fuel tank and a hydraulic oil tank, and the fuel tank and the hydraulic oil tank are stacked side by side and connected together in series. The fuel tank comprises a fuel tank body and a cylindrical beam, a concave area is arranged on the side of the rear portion of the fuel tank body and provided with a first buffer slope, the cylindrical beam is connected to the upper portion of the rear portion of the fuel tank body, and the two ends of the cylindrical beam are located on the two sides of the fuel tank body. The hydraulic oil tank is installed in the sunken area and comprises a hydraulic oil tank body and a circular tube beam, the circular tube beam is arranged above the rear portion of the hydraulic oil tank body, and the cylindrical beam is inserted into the circular tube beam; a second buffering inclined face is arranged on the rear portion of the hydraulic oil tank body, and the second buffering inclined face and the first buffering inclined face are opposite in position. The invention discloses a hybrid power mine truck and an installation method of a combined oil tank. Space can be reserved for arrangement of the power battery of the hybrid power mine truck, and overall arrangement and installation of the fuel tank and the hydraulic oil tank are achieved.

This utility model discloses a convection-type windproof photovoltaic support, including a mounting frame with multiple connecting seats fixedly mounted on it. A photovoltaic panel is disposed on one side of each connecting seat. The photovoltaic panel is connected to the connecting seat via a telescopic adjustment device. Multiple photovoltaic panels are positioned facing or away from the center of the mounting frame, and are aligned or dispersed. The mounting frame includes an outer ring and an inner ring. A connecting plate is fixedly connected to the corner of the outer and inner rings. Multiple vertical plates are fixedly disposed at the bottom of the connecting plates, and a base plate is fixedly disposed at the bottom of each vertical plate. The connecting seats are fixedly mounted on the inner ring, connecting plates, and outer ring. When the photovoltaic panels are dispersed, they provide convection and windproof protection, allowing wind to pass through the area between the photovoltaic panels, reducing the overall stress on the support and preventing significant stress on large areas of the photovoltaic panels.

The application provides a sealing material and a preparation method thereof and a goaf energy storage sealing method. The sealing material comprises 30 parts by weight of a high molecular polymer, 60 parts by weight of an inorganic cementing material and 10 parts by weight of an additive. The goaf energy storage sealing method comprises the following steps: spraying the sealing material on the wall surface of a goaf to form a sealing layer; after the sealing layer is cured, pasting a support layer on the side of the sealing layer away from the wall surface of the goaf; and spraying a protective material on the side of the support layer away from the wall surface of the goaf to form a protective layer. The sealing material and the preparation method thereof and the goaf energy storage sealing method provided by the application are simple and convenient, have good sealing effect, high stability and low cost, can prolong the service life of an energy storage system, reduce the energy storage cost, and realize efficient utilization of the goaf.

This utility model discloses a lightweight, high-strength aluminum alloy bicycle frame, belonging to the field of bicycle frames. The device includes a head tube, front fork, frame, seat tube, rotating bushing, down tube, and rear fork. The front fork is mounted at the bottom of the head tube. One end of the frame is welded to the head tube, and the other end is welded to the seat tube. A rotating bushing is welded to the bottom of the seat tube. One end of the down tube is welded to the rotating bushing, and the other end is welded to the head tube. Symmetrical movable support blocks are arranged on the outer periphery of the seat tube. Compared to traditional bicycle frame devices, the triangular design of the rear fork effectively disperses various forces generated during riding, allowing the rear fork to maintain a stable structure even under complex road conditions. Simultaneously, the rear fork transmits vibrations to the shock absorber through the movable support blocks. The shock absorber uses the pressure of sealed gas to achieve shock absorption, effectively reducing vibration transmission to the rider's body and improving riding comfort.

The present invention provides a mobile liquid hydrogen tank container, which includes an inner container and an outer container arranged outside the inner container. A plurality of sliding support structures are arranged between the inner container and the outer container in the circumferential direction. The sliding support structures are used to support the inner container and enable the inner container to slide along the axial direction relative to the outer container when thermal stress is generated in the mobile liquid hydrogen tank container. By setting the sliding support structure between the inner container and the outer container in a multi-point connection manner in the circumferential direction, the present invention reduces the contact area between the inner container and the outer container on the basis of supporting the inner container, achieves the purpose of reducing heat leakage, and the inner container is well stressed, which can improve the safety of the inner container.

The invention relates to a manual switch opening and closing device, which comprises a hand-held rod and a wrench head. The wrench head has two or more retaining recesses on the same circumference, and the retaining recesses are used for allowing the exposed part of the bolt assembly on the flange on the moving contact transmission connecting rod to be locked in; or the wrench head has a limiting arc surface adapted to the outer circumferential surface of the moving contact transmission connecting rod, and one or more retaining recesses for allowing the exposed part of the bolt assembly on the end flange of the moving contact transmission connecting rod to be locked in; the opening of the retaining recess is oriented perpendicular to the extension direction of the hand-held rod; applying force to the hand-held rod can drive the moving contact transmission connecting rod to rotate around its own axis through the wrench head, thereby driving the switch opening and closing action, and the structure is simple and the operation is convenient.

The utility model relates to a special-shaped structure lace arc-shaped steel formwork structure which comprises an arc-shaped steel formwork, a support assembly and split bolts, the inner wall of the arc-shaped steel formwork is fixedly connected with the support assembly, an arc-shaped flange is arranged on one side of the support assembly in the length direction, the radius of the arc-shaped steel formwork is R, and the height of the arc-shaped steel formwork is H, a special-shaped concrete lace is arranged on the outer wall of the arc-shaped steel formwork, the two ends of the special-shaped concrete lace are each provided with a protruding column, the protruding columns and the arc-shaped steel formwork are connected in a pressed mode through the plywood formwork and the batten, and the arc-shaped steel formwork and the arc-shaped flange are connected with the plywood formwork in a pressed mode through split bolts. The lace arc-shaped steel formwork structure of the special-shaped structure has the advantages that the accuracy is improved, the cost is reduced, the flatness is improved, and the lace arc-shaped steel formwork structure can be repeatedly used.

The utility model provides an ultrasonic puncture needle convenient to grasp and capable of quickly identifying, which comprises a needle tube, a plurality of scale marks are uniformly distributed on the outer wall of the needle tube along the length direction of the needle tube according to unit distance, a connecting part is fixed at the root of the needle tube, and the connecting part is detachably mounted on a connecting part of a needle seat. A plurality of scale marks are uniformly distributed on the outer wall of the needle tube along the length direction of the needle tube according to unit distance and are used for judging the insertion depth; the size of the needle seat can be adjusted according to different palm sizes of medical staff, the comfort degree of grasping the needle seat and the force control are improved, the optimal puncture force control is ensured, and smooth puncture is ensured; the ultrasonic reflection effect can be enhanced, the ultrasonic recognition and image effects are improved, and the success rate of an operation is increased; the strength of the needle tube is enhanced, slight bending of the puncture needle caused by insufficient experience or poor control is avoided, and accuracy of puncture depth reading is guaranteed.

This invention discloses a scaffold connector for easy disassembly of tall formwork structures, comprising uprights, horizontal bars, vertical diagonal bars, a movable hinge plate, and a connecting plate. The uprights and horizontal bars are connected by the connecting plate. The front end of the connecting plate has six connecting teeth, and the inner edge of the connecting plate has three V-shaped connecting hooks. The front end of the horizontal bar includes six horizontal bar protrusions and three diamond-shaped connecting hooks. The horizontal bar protrusions connect with the connecting teeth, and the diamond-shaped connecting hooks connect with the V-shaped connecting hooks. The movable hinge plate is connected to the horizontal bar, and its upper and lower ends are threaded to the diagonal bars. This scaffold connector, through the rational arrangement of the structure of each component, reduces the local pressure on the connecting plate, and the connecting plate and the horizontal bar can be quickly connected or disassembled using a simple push-pull engagement.

The utility model discloses an improved stirring rod for praseodymium and neodymium oxide mixed acid purification, which comprises an adapter lock, the adapter lock is fixedly connected to the driving end of a rotating device through a positioning pin, an adapter rod is welded to the bottom of the adapter lock, a positioning rod is arranged at the bottom of the adapter rod, an adapter cylinder is fixedly assembled on the outer side of the adapter rod, and the adapter cylinder is fixedly connected with the positioning rod. A gluing groove is formed in the top of the transfer cylinder, sealant is filled through the gluing groove, the transfer rod and the transfer cylinder are fixedly connected, a rotating head is assembled and fastened at the bottom of the transfer cylinder, the joint of the transfer cylinder and the rotating head is sealed and fixed through the sealant, symmetrical clamping grooves are formed in the rotating head, and the clamping grooves are clamped in the clamping grooves. The stirring device has the advantages that the whole structure is good in sealing performance, high in rotation synchronism, convenient to disassemble and assemble and good in stirring stability, the stirring blades are more stable to install, larger resistance can be borne, and the service life is prolonged.

The invention discloses a traction type vertical elevator steel wire rope guiding system which comprises a traction machine, a steel wire rope guiding device, a steel wire rope guiding device, a steel wire rope guiding device, a steel wire rope guiding device and a steel wire rope guiding device. The first car diversion sheave and the second car diversion sheave are axially arranged on the top surface of the elevator car at intervals; the counterweight diversion sheave is axially arranged on the top surface of the elevator counterweight block; and one end of the traction steel wire rope is fixed on the bearing beam, and the other end of the traction steel wire rope is fixed on the bearing beam after bypassing the counterweight diversion sheave, the traction sheave, the first car rope sending sheave and the second car rope sending sheave. The elevator guide system effectively solves the problem that an existing guide system is too large or insufficient in elevator traction force, the elevator operation quality is improved, and the elevator manufacturing cost is reduced.