136results about How to "Guaranteed tight connection" patented technology

The invention relates to a lightweight total-bearing body frame structure, which comprises a side wall frame, a roof frame, a front wall frame, a rear wall frame and an interlayer frame. The lightweight total-bearing body frame structure is made of an aluminum alloy or magnesium alloy material, and is riveted with lockbolts so as to ensure that the weight of the body frame is greatly reduced while the whole strength of the body is not lower than the conventional steel body frame. The parts forming the body frame has a unique design, so that well balance between weight reduction and strength maintenance can be achieved. The lightweight total-bearing body frame structure saves more energy than the conventional steel frame.

The invention discloses a double-tower hybrid beam cable-stayed bridge system. The double-tower hybrid beam cable-stayed bridge system comprises a hybrid beam composed of a concrete beam and a composite beam. The concrete beam and the composite beam are connected through a joint section. The concrete beam is a bilateral ribbed beam and comprises two concrete beam ribs. The composite beam comprises two main steel beams, and the main steel beams are each of an I shape and each comprise a main steel beam top plate, a main steel beam bottom plate and a main beam steel web. The joint section comprises a concrete beam rib-main steel beam connection structure composed of a front pressure bearing plate, a rear pressure bearing plate and a joint section steel web, and the main steel beam top plates and the main steel beam bottom plates stretch into the concrete beam ribs. The double-tower hybrid beam cable-stayed bridge system is reasonable in structural design, convenient to construct, high in construction speed, good in use effect and good in connection effect of a steel-concrete joint part. Meanwhile, the invention further discloses a construction method of the double-tower hybrid beam cable-stayed bridge system. The construction method includes the steps of lower portion supporting structure and main tower construction and hybrid beam construction. The construction method is simple, easy to implement, short in construction period and good in construction effect.

The invention provides an OLED display and a manufacturing process thereof. The OLED display includes a substrate layer, an OLED light emitting layer, an encapsulation layer, a touch screen, and a cover plate. The cover plate includes a first region, and a second region and a third region which are arranged on the two sides of the first region and separated from each other. The second region and the third region each include two first organic layers and one or more first water blocking layers arranged between the two first organic layers, and a third organic layer is arranged between every two adjacent first water blocking layers. The first region includes two first organic layers and a second organic layer arranged between the two first organic layers. A protective layer of which the hardness is greater than that of the first organic layers is arranged on the outer surface of the cover plate. The cover plate can be bent, and the water blocking performance of the display is improved.

A multifunctional mattress comprises a cotton layer and a shelf, the top of the cotton layer is in contact with the air, the bottom of the cotton layer is connected to the top of the shelf, and the bottom of the shelf is connected to the bed frame; The cotton layer is made of bionic honeycomb cotton; the bottom of the shelf is provided with two sliding rods that cross each other, and the two sliding rods correspond to a diagonal line of the shelf respectively. The sliding rods are made of elastic materials, and the sliding rods are provided with A hair dryer with a sliding fit, the air outlet of the hair dryer is arranged opposite to the bottom of the cotton layer directly above it, and a temperature sensor is arranged on the hair dryer, which includes a metal casing, an input wire, an input conductive plate, an output wire, an output conductive plate and power sheet. This design not only has a strong ventilation effect, but also has a better ventilation effect.

The invention relates to a foldable multi-rotor plant protection unmanned aerial vehicle, which comprises a machine body, a plurality of machine arms and rotors arranged on the machine arms, wherein the machine arms comprise a first machine arm and a second machine arm located on the same straight line; the first end of the first machine arm is connected with the machine body; the second end of the first machine arm is rotatably connected with one end of the second machine arm. The second machine arm and the first machine arm can be placed foldably, so that the space occupied by the unmanned aerial vehicle is reduced, and the convenience in transportation, conveyance and maintenance are realized.

The invention discloses a magnetic electronic brick. The magnetic electronic brick comprises a cavity, a cover, magnets, first magnet cavities and circuit boards, wherein the cavity and the cover are fixedly connected to form a polyhedron, the first magnet cavities are arranged in the side edges of the cavity, the magnets are arranged in the first magnet cavities and can move freely, the circuit boards are arranged in the cavity, contact terminals used for electric conduction are arranged on the circuit boards, through holes are formed in the surfaces of the cavity, and the contact terminals stretch out of the through holes. According to the magnetic electronic brick, the magnets capable of moving freely are placed in the magnet cavities of the brick, so attraction can be achieved on any surface at multiple angles; meanwhile, the contact terminals on the circuit boards stretch out of the through holes in the surfaces of the cavity, so that electric connection between components in the brick is ensured; both close connection and electric connection between brick parts are guaranteed.

The invention provides a roof plate system with waterproofness improved. The roof plate system comprises roof purlines and roof plates, each two adjacent roof plates are fixedly connected through a locking device which comprises a support keel and a buckle cover, the upper end of each roof plate is clamped between the corresponding support keel and the corresponding buckle cover, and each locking device is mounted on the corresponding roof purline through a conversion member; the edge of each buckle cover is provided with a flange extending toward the outer side in an obliquely downward manner, each support keel is positioned in a vertical projection of the corresponding buckle cover, a threaded hole is formed in each buckle cover, each roof plate is fixed and compressed between the corresponding support keel and the corresponding buckle cover through a bolt, a cover cap is arranged above each buckle cover, and each bolt covers in the corresponding cover cap. A fixing mode through the buckle covers is adopted, and each buckle cover covers the corresponding bolt and a joint of the corresponding roof plate and the corresponding support keel, so that no screw of a roof is exposed, the whole roof is attractive, potential trouble in water leaking caused by existing screws is eliminated completely, and waterproofness of the roof plate system is improved.

A waveguide ring flange, a flexible waveguide assembly containing the waveguide ring flange and an assembly method of the flexible waveguide assembly relate to the technical field of waveguide transmission lines and aim at solving the problem that the heat radiation cannot be realized by a traditional flexible waveguide assembly due to the adoption of external cooling equipment. The waveguide ring flange comprises a first ring flange and a second ring flange, wherein a waveguide tube connecting surface is arranged on the inner wall of the first ring flange; the second ring flange consists of a waveguide tube fixing part and an outer jacket which are integrated and communicated with each other; the waveguide tube fixing part is provided with a groove matched with the first ring flange; and water injecting ports of which the output ends are communicated with an inner cavity of the fixing part are formed in the side wall of the fixing part. The flexible waveguide assembly comprises a waveguide tube, the outer jacket and two waveguide ring flanges; two ends of the waveguide tube are respectively connected to the ring flanges; two ends of the outer jacket are respectively connected to the two ring flanges; and the waveguide tube, the outer jacket and two water injecting ports form a cooling water channel. The assembly method comprises the steps of material falling, shaping, waveguide tube welding and outer jacket cold pressing. The waveguide ring flange, the flexible waveguide assembly containing the waveguide ring flange and the assembly method of the flexible waveguide tube assembly, disclosed by the invention, are mainly used in the fields of communication, satellite ground stations, microwave measurement and the like.

The invention discloses an arc striking device for ion plating and an ion plating device, and relates to the technical field of ion plating. The arc striking device comprises an arc striking hook, a connecting rod, a corrugated pipe, a drive device and a sealing insulating part. A mounting hole is formed in the side wall of a vacuum chamber of the ion plating device, the sealing insulating part isfixed into the mounting hole and connected with the mounting hole in a sealed manner, an output shaft of the drive device penetrates through the sealing insulating part to be fixedly connected with one end of the connecting rod, the drive device can drive the connecting rod to reciprocate in the axial direction, one end of the corrugated pipe is fixedly connected with one end of the sealing insulating part, the other end of the corrugated pipe fixedly sleeves the connecting rod and is connected with the connecting rod in a sealed manner, and the connecting rod penetrates through the corrugated pipe to be fixedly connected with the arc striking hook. The ion plating device comprises the vacuum chamber and the arc striking device for ion plating. The drive device drives the arc striking hook to move, acting force is large, hook adhesion is not easily caused, the corrugated pipe is arranged for static sealing, the sealing performance of the vacuum chamber is good, and vacuum is not easily damaged.

The invention discloses a server structure supporting a 16GPU. The device comprises an 8U case, a 4U server, a bridging module, bolts and screws, The 8U case is provided with a front window structureand a rear window structure. The device comprises a base, Upper cover and middle partition plate, Rear window perforated plate, Rear window support, The invention designs a 4U server structure capableof accommodating eight GPUs. Meanwhile, an 8U case capable of storing two 4U servers is designed. The invention discloses a server structure supporting a 16GPU. GPU high-density ports of the two 4U servers are connected through the bridging module; the two 4U servers are arranged; Sixteen GPU cooperative work, the space requirement of the novel server is met; meanwhile, due to the special structural design of the wind scooper, the heat dissipation performance of the server is improved; the rear window opening plate is connected with the upper cover and the base through bolts at the rear window, so that connection between the upper cover and the base is reinforced, heat dissipation of the server can be guaranteed, and technicians can conveniently observe whether the server has abnormal conditions or not at the rear window.

A mould plate type pipe-containing casting dedicated sandbox upper box fixing tool comprises a tool connection rod and a slide block that cooperates with the tool connection rod, the slide block is provided with a connection screw hole, one end of the tool connection rod is connected to the connection screw hole through thread connection, the upper end of the tool connection rod stretches out of the connection screw hole, the lower end of the tool connection rod is provided with an inner screw thread, the side surfaces of the slide block are provided with card slots, which cooperate with the track arranged on the upper box. The provided fixing tool can guarantee the firm connection between the water pipe and the sandbox, and basically eliminates the stress deformation caused by the heat absorbed by the stainless steel pipe, form and location tolerance of the water pipe is guaranteed, and at the same time the sand mould will not collapse. The yield of the mould plate type pipe-containing casting is increased, moreover, the connection rod is painted with heat-diffusive paint, the problem of heat dissipation of the connection rod is solved, and the tool service life is prolonged.

The invention discloses an insulator device, which comprises a resin inner core and a rubber layer coated outside the resin inner core, wherein the resin inner core is provided with a middle axis hole; the outer wall of the rubber layer is provided with a plurality of rubber umbrella skirts; the upper end of the resin inner core is provided with a metal binding post; the lower part of the resin inner core is provided with a blocking surface; the outer wall of the resin inner core is provided with screw threads from an open end to a position close to the blocking surface; a sealing ring is arranged close to the blocking surface towards the direction of the screw threads; one side of the sealing ring facing away from the blocking surface is provided with an installation base; one side of the installation base facing away from the sealing ring is provided with a fastening nut; and the fastening nut is used for tightly pressing the installation base against the end face of the sealing ring through the screw threads. According to the insulator device, the technical problems of complex processing process and long production time of an insulator device with high sealing performance in the prior art are solved; and the insulator device has a simple processing process and high sealing performance.

The invention relates to a floor slab buckle connection structure, which belongs to the technical field of building decoration materials. The floor slab buckle connection structure comprises a first floor slab and a second floor slab which are adjacent to each other, wherein the first floor slab and the second floor slab are connected with each other through a connecting piece; the connecting piece comprises a transverse part and an upper convex part which is integrally formed on the transverse part; the bottom surface of the transverse part is flush with the bottom surface of the first floor slab and the bottom surface of the second floor slab; the end of the transverse part corresponding to the first floor slab is provided with first upswept lower buckling part; the bottom surface of the first floor slab is provided with a first lower buckling groove corresponding to a first lower buckling part; the end of the transverse part corresponding to the second floor slab is provided with a second upswept lower buckling part; the bottom surface of the second floor slab is provided with a second lower buckling groove corresponding to a second lower buckling part; a transverse buckling part facing the first floor slab or the second floor slab is formed on at least one side of the upper convex part; a side edge of the first floor slab or a side edge of the second floor slab is provided with a transverse buckling groove which is matched with the transverse buckling part; and the connecting piece is machined by a section. The floor slabs and the connecting piece are separately manufactured, so the floor slabs are prevented from being damaged or scrapped, and the floor slab buckle connection structure has lower manufacturing cost.

The invention discloses a detachable gas collection measuring device for the biodegradability of a medical magnesium alloy. The device comprises a main gas measuring pipe, an auxiliary gas measuring pipe, a gas guide cover, a plug valve and a drainage pipe, wherein the main gas measuring pipe is an independent component of which the upper end is provided with an external thread and the lower end is provided with an internal thread; the gas guide cover is an independent component which has a funnel shape and of which the small end is provide with an external thread fastened with the main gas measuring pipe and matched with the internal thread of the lower end of the main gas measuring pipe; and the lower end of the auxiliary gas measuring pipe is provided with an internal thread fastened with the main gas measuring pipe and matched with the external thread of the upper end of the main gas measuring pipe, and the upper end of the auxiliary gas measuring pipe is connected with the drainage pipe through the plug valve. The device has the advantages of detachability, easy carrying, convenient use, accurate measurement, high generality and the like; and when the device is used, insoluble gases produced in a specific area in a liquid medium can be easily collected in real time and synchronously and accurately measured, and therefore the requirements on fast and accurate measurement of the corrosion resistance and degradability of materials are met.

The invention discloses a folding guard fence, which comprises a left supporting rod, clamping rings and supporting legs. The left supporting rod is arranged on a support which is provided with supporting ribs on two sides of the left supporting rod; the clamping rings are arranged at two ends of a supporting rod and connected with the supporting rod through bolts; the supporting legs are arrangedbelow the supporting rod and connected with two ends of a sleeve. The folding guard fence is simple in structure; by cooperation of a first drawing rod, a second drawing rod and third drawing rods with the sleeves and by grating adjustment, convenience in adjustment according to sizes of erection areas is achieved, and convenience in folding and space saving are realized; by matching of a bolt seat and a single clamping seat and by matching of the second drawing rod and a double clamping seat, sequential connection of the fence can be realized; by locking bolts, fastening degrees of the supports and the left supporting rod and a right supporting rod can be adjusted, and an angle between the left supporting rod and the corresponding support and an angle between the right supporting rod andthe corresponding support can be adjusted, so that erection at a regional corner is facilitated, and high stability is realized.

The invention belongs to the technical field of drilling rig equipment, and proposes a self-propelled double-column drill carriage which is characterized by comprising a chassis. A travelling track isarranged below the chassis, the chassis is provided with a column, a guide rail is rotatably arranged at the middle of the column, a rotator is slidably arranged on the guide rail, the column includes a bottom pillar arranged on the chassis, the upper portion of the bottom pillar is connected with a pneumatic telescopic pillar, a first abutting seat is hinged to the top of the pneumatic telescopic pillar, rotating supporting rods are also rotatably arranged on the chassis, a rotating shaft of each rotating supporting rod is arranged in the horizontal direction, the length of the rotating supporting rod is larger than the distance between the chassis and the ground, the rotating supporting rod is telescopic and can be locked, the number of the rotating supporting rods is four, the rotatingsupporting rods are located at four corners of the chassis respectively, and a second abutting seat is hinged to one end of the rotating supporting rod far away from the chassis. According to the self-propelled double-column drill carriage, the problems that when a drilling rig is in drilling process, the chassis is instable easily and shakes, which results in a poor drilling effect is solved.