323 results about "Hexagonal prism" patented technology

The invention provides a graphite head regular hexagon blank manufacturing method which comprises the following steps: taking a rectangular carbon brick, and establishing a rectangular coordinate reference system by taking an orthographic projection rectangle of the rectangular carbon brick as a reference and an original point of a point position where a first side is intersected with a second side; obtaining the length of the first side and the length of the second side of the rectangular carbon brick; the preset single bodies are regular hexagonal prisms, are arranged on a first side in a shoulder insertion manner and are arranged in a side-sharing side-by-side manner in the direction of a second side; the cutting line carries out displacement cutting in the first side direction and the side length direction of a preset regular hexagon; according to the scheme, the cutting line walks in the linear direction of the side length of the regular hexagon, three sides of each regular hexagon can be obtained through cutting after each cutter is completed, although each regular hexagon needs to be machined through two cutters, four regular hexagons can be machined through each cutter except for the first cutter, the machining efficiency is high, and the machining cost is low. And the average monomer processing time is short.

The invention relates to the technical field of engine heat exchangers, in particular to a high-speed engine precooling heat exchanger which comprises a plurality of first cooling units, a plurality of second cooling units and a plurality of air circulation units, each first cooling unit is of a regular hexagon structure, and cooling liquid can circulate in each first cooling unit; the second cooling unit is of a regular hexagon structure, and cooling liquid can circulate in the second cooling unit. The air circulation unit is of a regular hexagon structure, and air can circulate in the air circulation unit. The first cooling unit, the air circulation unit and the second cooling unit are stacked layer by layer, the two sides of the air circulation unit are adjacent to the first cooling unit and the second cooling unit respectively, and the whole high-speed engine precooling heat exchanger is of a hexagonal prism structure. Through the hexagonal geometric symmetry design, the thermal stress in the heat exchanger is effectively reduced, and the reliability and safety of the heat exchanger in the extreme temperature difference environment are improved.

The invention provides an injection mold surface precision treatment device and method. The injection mold surface precision treatment device comprises a treatment assembly, and the treatment assembly comprises a bottom frame, a U-shaped support, a through groove, a U-shaped grinding frame and a controller. The grinding roller can be easily taken down from the hexagonal prism by pulling a pull button to enable a limiting column to slide to compress a reset spring, after a new roller is installed, the pull button is loosened, the reset spring pushes the limiting column to enable the hexagonal prism to be inserted into the grinding roller to complete installation, operation is easy, replacement time is saved, and working efficiency is improved; a limiting screw rod is driven to rotate by rotating an adjusting handle, a U-shaped grinding frame can stably slide up and down along a through groove, the height of a grinding roller is accurately adjusted, the requirements of molds with different thicknesses and diversified grinding can be met, and the grinding effect is guaranteed; the mold is preliminarily positioned through the positioning columns, the electric cylinders push the clamping blocks to move, the anti-skid pad tightly abuts against the mold, meanwhile, the multiple electric cylinders clamp the mold in different directions, and therefore it is guaranteed that the mold is stable and free of displacement in the treatment process, and the treatment precision is guaranteed.

A surface-emitting laser element includes: a first guide layer including a photonic crystal layer that is formed on a c plane of a group-3 nitride semiconductor and includes air holes arranged with two-dimensional periodicity in a plane parallel to the photonic crystal layer, and an embedding layer that is formed on the photonic crystal layer and closes the air holes; an active layer formed on the first guide layer; and a second guide layer formed on the active layer, wherein an air hole set including at least a main air hole and a sub-air hole smaller in size than the main air hole is arranged at each square lattice point in the plane parallel to the photonic crystal layer, and wherein the main air hole has a regular-hexagonal prism shape, a long-hexagonal prism shape, or an elliptic cylindrical shape with a major axis parallel to a <11-20> axis.

The absorber is formed by periodically arranging a plurality of absorption structure units, each absorption structure unit comprises a SiO2 substrate, a Ti metal layer and two Si3N4 regular hexagonal prisms which are coaxially arranged from bottom to top, and the embedded body which is coaxially arranged in the Si3N4 regular hexagonal prism at the bottom layer; the embedded body comprises an MgF2 regular hexagonal prism on the outer layer, a Cr metal circular ring on the middle layer and a TiO2 regular hexagonal prism on the inner layer. When the MgF2 regular hexagonal prism is internally tangent to the Si3N4 regular hexagonal prism at the bottom layer, the Cr metal circular ring is internally tangent to the MgF2 regular hexagonal prism, the TiO2 regular hexagonal prism is internally tangent to the Cr metal circular ring, and the top point of the bottom surface of the Si3N4 regular hexagonal prism at the top layer coincides with the midpoint of the edge of the top surface of the Si3N4 regular hexagonal prism at the bottom layer, it is ensured that an electromagnetic field / sound field is uniformly coupled between structural units, energy leakage or too high local field intensity is avoided, and the electromagnetic field / sound field is effectively improved. The coverage range of absorbed waves is 800-2800nm, and is not influenced by incident energy polarization, so that the application range is wide; structural unit layout facilitates accurate alignment, manufacturing difficulty and cost are reduced, and mass production, popularization and application are easy.

The invention belongs to the field of electroplating of long and thin lead electronic components, and relates to barrel plating equipment for the long and thin lead electronic components, which comprises a roller 1, a barrel plating frame 2 and a motor mechanism 3, the roller 1 is arranged on the barrel plating frame 2, and the motor mechanism 3 is arranged on the barrel plating frame 2 and is connected with the roller 1; the roller 1 is of a hexagonal prism structure composed of two hexagonal side plates 11 and six quadrilateral bottom plates 12. The roller 1 further comprises pressing strips 13, and the screen cloth is fixed to the quadrilateral bottom plate 12 through the pressing strips 13 and screws. Aiming at the characteristics of a slender lead electronic component, different from a traditional single screen cloth fixing mode, the slender pressing strips and the screws are adopted for fixing the screen cloth, the number of stretched cloth edges of the screen cloth is reduced, the internal structure is kept flat, the internal gap of the roller is effectively reduced, and then the situation that the lead is bent is reduced.

The invention discloses an ultra-wideband high-efficiency absorber in the technical fields of optics, material science and energy, which takes silicon dioxide (SiO2) as a substrate, and a titanium (Ti) nano rectangular body array is arranged above the substrate; a silicon nitride (Si3N4) regular hexagonal prism array is constructed on the top of the titanium layer, six cylindrical holes are etched in the midpoint of each vertex of a regular hexagon on the bottom surface of the titanium layer, and magnesium fluoride (MgF2) is filled in the cylindrical holes to form magnesium fluoride nano cylinders; a chromium (Cr) ring and a silicon nitride ring are sequentially superposed at the top end of the hexagonal prism and are tangentially matched with the hexagon on the top surface of the hexagonal prism. According to the UWB-HEA, the incident wavelength ranges from 400 nm to 4000 nm, the designed efficient absorption range (namely absorption band) of the UWB-HEA covers from near-infrared 855 nm to mid-infrared 3540 nm, about 2685 nm, the average absorption rate of 96.67% is achieved under TM waves, and the highest absorption rate is 99.66%; the average absorption rate of 96.44% is achieved under TE waves, the highest absorption rate is 99.72%, and the absorption rate is almost unrelated to polarization. In order to reduce radiation energy loss of an object, an ideal solar heat absorber needs to realize efficient light absorption in a wide wave band range.

The invention provides a broadband infrared polarization device based on a mercurous halide crystal as well as a preparation method and application of the broadband infrared polarization device. The broadband infrared polarization device based on the mercurous halide crystal comprises a right-angle triangular prism based on the mercurous halide single crystal and a hexagonal prism based on the mercurous halide single crystal, and the mercurous halide is Hg < 2 > Cl2 or Hg < 2 > Br < 2 >. The mercurous halide crystal used in the invention is low in cost, can be prepared in a large size, and has stable physical and chemical properties; the transmission range of the infrared polarization device covers middle and far infrared bands, the transmission rate is high, and the birefringence is large; the polarization device based on the mercurous halide crystal can simultaneously realize polarization beam combination and beam splitting of visible-long wave infrared broadband, and has a high laser damage threshold, a high extinction ratio, high beam combination efficiency and high beam quality.

The invention discloses a novel extractor which comprises a head part (9), a connecting body (10), a connecting rod (6) and a handle (8), the head part (9) can be opened and closed; one end of the connecting rod (6) is of a conical structure (5), the conical structure (5) is detachable, and the head part (9) is exactly wedged with the connecting rod (6) when being closed; the connector (10) is a hexagonal prism, a threaded structure (7) is arranged in the connector (10), the top end of the head part (9) is fixed with the connector (10), the threaded structure (7) is wedged with the other end of the connecting rod (6), and the threaded structure (7) is connected with the handle (8). The extractor designed by the invention can be applied to pipelines or screws with different sizes, is wider in application range, does not need to be knocked during use, is convenient, can be repeatedly used, and is not easy to damage.

The multi-cavity diaphragm pump comprises a pump shell, a vibration module and a power module, the pump shell comprises six shell plates defining a pump cavity in a regular hexagonal prism shape, and each shell plate is provided with a mounting hole communicating with the pump cavity in a penetrating mode; the vibration modules are arranged in one-to-one correspondence with the mounting holes, and each vibration module comprises a diaphragm and a pump cover; the power module is in driving connection with each diaphragm; the number of the mounting holes and the number of the vibration modules which are correspondingly arranged are an even number not smaller than 10, the six shell plates are divided into two symmetrical groups with the same number, the two shell plates in one-to-one correspondence in the two symmetrical groups are arranged in a central symmetry mode, and the mounting holes formed in the two shell plates arranged in the central symmetry mode and the structures of the installed vibration modules are respectively arranged in the same mode. According to the invention, the pump shell is designed into a hexahedron structure with more than ten cavities, so that the mounting space of the cavities can be obviously enlarged on the premise of not additionally increasing the overall volume, and the design number of the cavities is increased, thereby being beneficial to improving the working efficiency.

1. Name of the Design Product: Concrete Filling Mold (Six-column Body). 2. Use of the Design Product: As a mold for casting and filling concrete components with specific shapes. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

The invention discloses a bathroom hidden floor drain structure and a construction technology, and belongs to the technical field of floor drains.When a floor drain component of the bathroom hidden floor drain structure needs to be repaired, an adaptive wrench is sleeved with a regular hexagonal prism, then the regular hexagonal prism is rotated, a rotating strip is rotated by the regular hexagonal prism, a cover piece is taken away from a hollow shell, and then the cover piece is taken away from the hollow shell; after the floor drain component is repaired, the cover piece is restored, and the regular hexagonal prism is rotated and restored, so that the cover piece can be positioned on the hollow shell through the locking part, and accumulated liquid after water is used in a toilet can be conveyed through the first penetrating opening and the second penetrating opening. The defects that in the prior art, when a large amount of accumulated liquid is accumulated at a floor drain part, time and labor are wasted when a user holds a container manually to scoop the accumulated liquid during renovating, renovating is unfavorable when dirt exists at the floor drain part, and time and labor are wasted when a liquid extractor needs to be taken out manually after the accumulated liquid is extracted are effectively overcome.

The utility model discloses a numerical control hydraulic control module, which relates to the numerical control hydraulic technical field, and comprises a base plate and a first U-shaped plate, the first U-shaped plate is fixedly arranged on the upper surface of the base plate, the top of the first U-shaped plate is fixedly provided with a first hydraulic cylinder, and the tail end of a piston rod of the first hydraulic cylinder extends to the lower part of the first U-shaped plate; a hexagonal hole is formed in the tail end of a piston rod of the first hydraulic cylinder, a hexagonal prism is slidably inserted into the hexagonal hole in a matched mode, a pressing rod is fixedly arranged at the lower end of the hexagonal prism, and the outer wall of the tail end of the piston rod of the hydraulic cylinder is fixedly sleeved with a second U-shaped plate; transmission mechanisms for driving the pressing rods to move relative to piston rods of the first hydraulic cylinders are arranged on the two sides of the second U-shaped plate. The hydraulic mechanism is provided with the auxiliary hydraulic mechanism, the pressing rod of the main hydraulic mechanism can be rapidly displaced, the stroke of the main hydraulic mechanism can be reduced, and the working efficiency is improved.

The utility model relates to the technical field of packaging boxes, in particular to a double-cone hexagonal prism packaging structure which comprises a dodecahedron-shaped box body, a box cover with one side edge and one side edge of the box body covering the opening end of the box body in a turnover mode, and magnetic attraction modules which are arranged on the edge of the opening of the box cover and the edge of the opening of the box body respectively and used in pairs to fasten the box cover and the box body. The paper surface covers the peripheral sides of the box body and the box cover, fastens the magnetic attraction module and extends to be attached to the inner side wall of the box cover and the inner side wall of the box body; the box body comprises a plurality of box bottom grey boards which are assembled into a hexahedral cone, and a plurality of outer wall grey boards which are connected with the box bottom grey boards in a one-to-one correspondence manner and are assembled into a hexahedron; the box cover comprises a plurality of box cover grey boards which are assembled into a hexahedral cone, the box cover grey boards are connected in sequence, and each box cover grey board is connected with one outer wall grey board. The utility model has the advantages that the assembly structure is exquisite, the structural arrangement is reasonable, the production and processing are facilitated, and the like.

The invention relates to the technical field of wireless communication, and provides a surface acoustic wave device which comprises a supporting substrate, a piezoelectric substrate and an interdigital transducer. The supporting substrate is made of a sapphire material; the interdigital transducer comprises a first interdigital electrode, a second interdigital electrode, a first bus bar and a second bus bar, wherein the first bus bar and the second bus bar are oppositely arranged. The first interdigital electrode is separated from the second interdigital electrode and the second bus bar, and the first interdigital electrode and the second interdigital electrode are opposite in electrical polarity; the arrangement direction of the first interdigital electrodes and the second interdigital electrodes is a sound wave propagation direction; wherein the sapphire is r-face sapphire, crystal arrangement of the r-face sapphire is in a regular hexagonal prism shape, the growth axis of the r-face sapphire is perpendicular to the bottom face of the r-face sapphire, and the [2-1-1] crystal orientation of the r-face sapphire is perpendicular to the orthographic projection of the growth axis on the r face and is parallel to the sound wave propagation direction. The surface acoustic wave device provided by the invention can realize higher frequency, high reliability and higher power.

The utility model discloses a metal packing cutting and slitting device, which relates to the technical field of tower packing processing equipment and comprises a slitting frame and a cutter adjusting device. Two supporting frames are fixedly connected to the top of the slitting frame, hexagonal prism guide rods are fixedly connected to the interiors of the two supporting frames, and seven sliding tables are slidably connected to the surfaces of the hexagonal prism guide rods in a sleeving mode; the cutting knife adjusting device comprises a rotating rod, a cylindrical adjusting roller, seven cylindrical blocks, an electric telescopic rod, a toothed plate and a gear, the rotating rod is rotationally connected to the upper ends of the two supporting frames, the cylindrical adjusting roller is fixedly connected to the surface of the rotating rod in a sleeving mode, seven spiral inclined grooves are formed in the surface of the cylindrical adjusting roller, and a worker can adjust the seven cutting units at a time; the adjusting process of the cutting disc is simplified, the speed of adjusting the cutting disc by a worker is increased, the labor intensity of the worker is reduced, and the worker can conveniently cut and strip a silk screen into different sizes.

Spike (1) for anchoring in a spike hole of a tread of a vehicle tire with a spike body (2) which has a foot flange (3), an upper body section (2c) and a spike pin (4) anchored in the spike body (2), which extends with an outer pin section (4a) beyond the upper body section (2c) of the spike body (2), wherein the spike pin (4) has three arms (4b) enclosing equal angles to each other, which extend according to the points of a three-pointed star. The upper body section (2c) of the spike body (2) is designed similarly to a hexagonal prism and has a top surface (6) that is uniformly hexagonal in plan view and an outer surface with surface elements (5) corresponding to the prism sides, between which a rounded corner region (7a, 7b) formed by further surface elements (5') is formed, to which corner regions belong three first and three second corner regions (7a, 7b) that alternate and have different interior angles (α, β).

The utility model provides a test tube cleaning device for food detection, and relates to the technical field of test tube cleaning devices, the test tube cleaning device comprises a base and a cleaning mechanism, the cleaning mechanism is installed on the left side of the top end of the base, the cleaning mechanism comprises a scrubbing assembly, a flushing assembly and a switch assembly, and the scrubbing assembly is installed on the left side of the top end of the base; through the arrangement of the rotating assembly, when test tubes are cleaned, the test tubes are clamped in clamping jaws, at most six test tubes can be clamped at a time, after the test tubes are clamped, only a hexagonal outer tube and a round outer tube need to be installed on the outer sides of a hexagonal prism and a sliding column to slide up and down, and then the test tubes can be cleaned. The test tubes can be cleaned by pressing the Y-shaped plate and driving the switch button, and due to the fact that the external size of the hexagonal prism is equal to the internal size of the hexagonal outer tube, each test tube can be accurately located at the cleaning position, and damage to the test tubes or equipment is avoided.

The utility model belongs to the technical field of torque testing, and discloses a torque testing tool which comprises a digital display torque wrench, the digital display torque wrench is fixedly connected with a grip, the bottom of the digital display torque wrench is connected with a hexagonal prism through a connecting assembly, the bottom of the hexagonal prism is provided with a hexagonal groove, and the hexagonal groove is provided with a clamping groove. The hexagonal prism is sleeved with a first-stage hexagonal prism-shaped barrel, the first-stage hexagonal prism-shaped barrel is sleeved with a second-stage hexagonal prism-shaped barrel, fixing bolts are arranged at the positions, close to the tops, of the side faces of the first-stage hexagonal prism-shaped barrel and the second-stage hexagonal prism-shaped barrel correspondingly, and the fixing bolts are movably connected with the hexagonal prism and the first-stage hexagonal prism-shaped barrel. According to the torque testing tool, the first-stage hexagonal-prism-shaped cylinder extends downwards, so that a bolt with a corresponding size can be clamped through the first-stage hexagonal-prism-shaped cylinder, and the second-stage hexagonal-prism-shaped cylinder extends downwards, so that a bolt with a corresponding size can be clamped through the second-stage hexagonal-prism-shaped cylinder, and the torque testing tool can be used for testing torques of bolts with different sizes.

A special dismounting tool for a screw of a converter shell belongs to the technical field of auxiliary tools and comprises a base, a fastening frame, a threaded guide sleeve, a threaded inner sleeve and an adapter, a converter is fixed between the base and the fastening frame, a screwdriver head is mounted in a hexagonal hole in the bottom of the adapter, and the screw is screwed into the threaded guide sleeve. The height of the screwdriver head can be adjusted through the thread meshing depth of the thread guide sleeve and the thread inner sleeve, so that a converter shell screw is tightly pressed, the hexagonal prism at the upper end of the connector is rotated through a ratchet wrench, the dismounting torque is reliably transmitted, the purpose of safe and lossless dismounting is achieved, the working efficiency can be improved, and the working efficiency is improved. The problem that converter shell screws are difficult to disassemble in the product repairing process is solved.

The utility model discloses an adjustable amorphophallus bulbifer ditching mechanism which comprises a square frame installed on one side of a ditching vehicle, one side of the square frame is rotationally connected with an E-shaped frame through a bearing, and an adjusting part is arranged between the square frame and the E-shaped frame so that the angle of the E-shaped frame can be changed. Two hexagonal prisms are rotationally connected into the E-shaped frame through bearings, a connecting shaft is fixedly connected between the two hexagonal prisms and penetrates through the E-shaped frame, sliding seats are slidably connected to the outer sides of the two hexagonal prisms, and rotating discs are fixedly connected to the outer sides of the sliding seats; a plurality of furrowing plates which are distributed at equal intervals are fixedly connected to the circumferential outer wall of the turntable. According to the ditcher, the distance between two ditches can be adjusted, the use effect of the ditcher is improved, soil splashing can be avoided, the use effect of the ditcher is further improved, the ditching depth can be adjusted, and the applicability of the ditching mechanism is improved.

The present invention belongs to the field of magnetic materials, and specifically relates to a method for preparing nanocrystalline strips and nanoparticles based on gas-phase drive and liquid rolling. A crystallized thin strip with a width of 5 to 40 mm is obtained through processes such as alloy melting, pouring, and liquid rolling. The crystallized thin strip is subjected to heat treatment, crushing, chemical and physical driven particle separation, and other processes to finally obtain a magnetic particle powder. The powder is single crystal, with more than 85% of the particles being undamaged and more than 95% of the particles having a damaged volume of ≤10%. The six-dimensional particle size D80 is 8 to 10 nm and 20 to 30 nm, the particle shape is a hexagonal prism structure, the aspect ratio is 1.2 to 1.8:1, and the magnetic induction is 35 to 80 A·m. 2 / kg.

1. Name of the product in this design: Handheld Ice Cream Cup (Hexagonal Prism). 2. Purpose of this design: For holding ice cream, cold drinks, and desserts in a takeaway cup. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model discloses a sand excavation pit slope protection structure which comprises a sand excavation pit, the sand excavation pit comprises a pit bottom, a slope and a pit top, and a protection assembly is arranged on the surface of the slope. The protection assembly comprises a water-permeable cushion layer fixed to the upper surface of the side slope, hollow floor tiles which are laid on the upper surface of the water-permeable cushion layer and arranged in an array mode and are in the shape of regular hexagonal prisms, and anchor rods which are obliquely fixed to the surface of the side slope relative to the surface of the side slope. The structure is simple, pertinence is high, and the protection stability of the side slope of the sand excavation pit is improved; meanwhile, the water permeable cushion layer effectively promotes water discharge, and the pressure on the anti-seepage cloth is relieved.

The tilting fillet fixing device comprises a rack, a bearing bush seat, a side cover, a screw rod and a base plate, the bearing bush seat is installed on the rack, an adjusting inclined block is arranged between the lower portion of the bearing bush seat and the rack, the upper end and the lower end of the side cover are installed on the two sides of the rack through connecting round pins, and one side of the side cover is attached to one side of the bearing bush seat; a threaded hole is formed in the side cover, one end of the screw extends into the side cover from the threaded hole, and the screw is connected with the threaded hole through threads. The threaded hole is formed in the side cover, the threaded rod can apply thrust to the base plate through the threaded hole, the bearing bush seat is pressed by the base plate, the bearing bush seat is prevented from shaking during working, the abrasion speed of equipment is reduced, the base plate is connected with the side cover through the hanging lug and the supporting rod, the base plate can be hung on the side cover, and the base plate can be conveniently installed; the hexagonal prisms of the screw rod are connected through the anti-loosening rods, the screw rod can be prevented from rotating and loosening during equipment operation, and therefore the thrust of the screw rod to the base plate is kept.

The utility model discloses a positioning and clamping device for producing and processing an optical lens in the related technical field of optical lens polishing devices, which comprises a process table and a clamping motor, the process table is provided with a mounting hole, one end of the process table adopts a regular hexagonal prism design, and the other end of the process table is sleeved with a shell, the shell is made of plastic materials, the end, away from the process table, of the shell is designed to be conical, a connecting disc is embedded in the end, away from the process table, of the shell, and a supporting frame is fixedly connected to the connecting disc. According to the concave-convex lens polishing device, through the design of the process table and the mounting hole, the concave-convex lens polishing device can be conveniently connected with concave-convex lens production equipment to achieve rotating and swinging polishing, meanwhile, the connecting part is made of metal, the service life of the device is prolonged, and the economical efficiency is good; and the optical lens can be automatically clamped and disassembled, the production efficiency is greatly improved, and the practicability is high.

The utility model provides a vacuum pouring device for a transformer, which relates to the technical field of pouring devices and comprises a device body. The device body is provided with a clamping rotating rod in the left-right direction, threads with opposite rotating directions are formed in the outer circumferences of the left side and the right side of the clamping rotating rod, fixing columns are arranged on the left end face and the right end face of the clamping rotating rod, and regular hexagonal prisms are arranged on the outer end faces of the fixing columns of the clamping rotating rod. Clamping moving plates in the front-back direction are installed on the outer circumferences of the left side and the right side of the clamping rotating rod through threads, and a guide plate with a left-right penetrating threaded hole is arranged in the middle of the end face of the bottom of each clamping moving plate, so that the clamping rotating rod is conveniently installed on a transformer dragging plate through a bearing to bear the clamping moving plates; according to the device, the transformer can be conveniently clamped and fixed through the clamping moving plate, and the problems that the transformer needs to be fixed to the device dragging plate through a plurality of bolts, so that the disassembly and assembly process of the transformer is tedious, and clamping measures are not conveniently added to the device dragging plate to clamp and fix the transformer are solved.

The utility model discloses a special-shaped socket spanner, which relates to the technical field of socket spanners, and comprises a circular truncated cone seat, a cone is fixedly connected to the top of the circular truncated cone seat, a convex hexagonal prism is fixedly connected to the top of the cone, a hexagonal groove is arranged in the circular truncated cone seat, a clamping seat is arranged in the cone, and the clamping seat is fixedly connected with the convex hexagonal prism. A hollowed-out hexagonal groove is formed in the protruding hexagonal prism and communicates with the clamping base, and the hollowed-out hexagonal groove penetrates through the top of the protruding hexagonal prism and extends to the bottom of the circular truncated cone base. In practical application, the wrench is combined with a ratchet handle, the lower six-edge sleeve penetrates through a skin round hole to be fixed to a part, the vertical height difference between the skin and the part is made up for disassembly and assembly, the step of disassembly and assembly of adjacent parts is omitted, the labor intensity is reduced, the working efficiency is improved, and the disassembly operation time is saved.

The invention belongs to the technical field of road slope supporting, and particularly discloses a precast block for a retaining wall, the retaining wall and a construction method of the retaining wall. The prefabricated blocks comprise the first prefabricated block, the second prefabricated block, the third prefabricated block and the fifth prefabricated block, the first prefabricated block is of a regular hexagonal prism structure, tenons are arranged on the three adjacent side faces, matched grooves are formed in the other three adjacent side faces, and the adjacent block bodies are connected in the mode that the tenons are embedded into the grooves. The second to fifth precast blocks are all of a quarter structure of the first precast block and can be flexibly combined into different half structures of the first precast block. According to the retaining wall formed by the precast blocks, a bottom layer, a middle layer, a top layer, a left side base body structure and a right side base body structure are formed by combining the precast blocks, and the block bodies are connected through a membrane interface agent. The problems that existing precast blocks are unreliable in connection, low in standardization and low in assembly efficiency are solved, the precast block has the advantages of being stable in connection, high in universality and adaptability and convenient and fast to construct, the assembly requirements of different parts of a retaining wall can be met, and the precast block is suitable for road slope supporting engineering.

The application discloses a kind of based on regulation and control crystal structure bimetallic MnTi-MOF derivative MnTi@C material, raw material is two transition metal compounds, N, N-dimethylformamide, methanol and p-phenylenediamine, after solvothermal method obtains bimetallic MOF, named MnTi-MOF;Again, MnTi@C is prepared by calcination;MnTi-MOF micro-morphology is regular hexagonal prism cone structure;MnTi@C micro-morphology is rough hexagonal prism cone structure.The preparation method includes the following steps: 1, the preparation of MnTi-MOF;2, the preparation of MnTi@C.As the application of MgH2 hydrogen storage catalyst, based on ball milling method, MnTi@C and MgH2 are ball milled, MgH2-MnTi@C can be obtained;Under the condition that the temperature programmed rate is 3-5 ℃ / min, the initial hydrogen release temperature is 150-160 ℃;Under the condition that the hydrogen absorption pressure is 20-30 bar, the hydrogen absorption temperature is 150-250 ℃, the hydrogen absorption time is 30-90 s, the hydrogen absorption amount is 5.5-6.1 wt%;Under the condition that the hydrogen release temperature is 250-350 ℃, the hydrogen release time is 120-240 s, the hydrogen release amount is 5.0-5.6 wt%.