15results about How to "Meet structural requirements" patented technology

The utility model relates to a kind of speaker box wire outlet structure, comprising: loudspeaker;Silica gel cover, its sleeve is equipped in the outside of loudspeaker;Wire rod, one end is connected with loudspeaker, and the other end of wire rod is threaded through silica gel cover, the outer wall of wire rod and silica gel cover contact is wrapped with sponge, the sponge is clamped on silica gel cover, and sponge is used for balancing the air pressure between loudspeaker and silica gel cover inner and outer cavities.The utility model's speaker box wire outlet structure, wire rod is wrapped with sponge, wire outlet mode clamped in wire outlet position, both can fix wire rod, and can reduce the process of glue fixing wire rod, make assembly more simple and fast, and have the effect of deflation and balancing air pressure in speaker box, satisfy the structure requirement of customer while satisfying the sound quality demand.

The utility model relates to a module well prefabricated waterproof cover plate which comprises a body, the body is in a disc shape, an eccentric through hole is formed in the body, and a cover edge protruding downwards is arranged on the edge of the body. An annular first groove is formed in the periphery of the through hole; the first groove is concentric with the through hole; an annular second groove is formed in the inner side wall of the cover edge; an annular third groove is formed in the bottom surface of the body; the third groove is concentric with the body, and the distance between the third groove and the inner wall of the cover edge is 7-8 cm; the first groove, the second groove and the third groove are each internally provided with a water-swelling water stop rubber strip. The utility model has the advantages of simple structure and convenience in use, not only can meet the structural requirements of the module well, but also can effectively eliminate the water leakage phenomenon, ensure the normal use of the module well, and fully meet the market requirements.

The invention discloses a vehicle body boundary beam box type structure and a machining method thereof, and relates to the technical field of railway vehicles. The outer edge beam is obliquely arranged on one side of the inner edge beam; the edge beam floor is horizontally arranged, the outer edge beam is obliquely arranged on one side of the edge beam floor, and the edge beam floor and the inner edge beam are arranged in parallel at intervals up and down; the profile reinforcing plate is connected with one side of the edge beam floor and one side of the inner edge beam, and the outer edge beam and the profile reinforcing plate are located on the two sides of the edge beam floor and the inner edge beam in the length direction; a first opening is formed in the edge beam floor, a second opening matched with the first opening is formed in the outer edge beam, and the outlines of the first opening and the second opening are smoothly connected; the area, directly facing the first opening, of the top face of the inner edge beam is provided with a pedal reinforcing plate. A blocking plate is arranged around the inner side of the first opening of the boundary beam floor. The whole structure is simple and reliable, and good manufacturability is achieved while the requirement for the vehicle structure is met.

The invention relates to the technical field of tunnel engineering, and provides a construction method of a bealock section large-span multi-arch tunnel entry structure, which comprises the following steps: constructing a first pre-reinforcing pile assembly and a second pre-reinforcing pile assembly, excavating a temporary side slope to construct a middle pilot tunnel, excavating the middle pilot tunnel, and constructing a middle partition wall in the middle pilot tunnel after the middle pilot tunnel is communicated. And backfilling soil and stones to the bottom height of the protective arch, constructing the protective arch located above the left tunnel hole and the right tunnel hole, constructing an open cut tunnel section and an end wall type tunnel portal, backfilling soil at the top of the protective arch to the designed height, and then synchronously constructing the left tunnel hole and the right tunnel hole to the hidden tunnel section. According to the method, synchronous construction of the left main hole and the right main hole of the multi-arch tunnel can be achieved, the construction procedures of the multi-arch tunnel are greatly reduced, safety is high, meanwhile, the side slope is effectively reinforced, the side slope is prevented from collapsing in the excavation process, the design method of the protection arch is further provided, the determined protection arch can meet the structural requirement, and construction convenience can be improved.

The present invention discloses an embroidery machine, belonging to the technical field of embroidery equipment, comprising an upper shaft and a main drive motor, and also comprising a plurality of head modules, wherein the main shaft is arranged outside each head module, and each head module comprises at least one head, and the head comprises a housing, a needle bar drive shaft, a guide rod, a needle bar driver, a needle bar cam, a connecting rod structure, a presser foot structure, a presser foot drive wheel and a presser foot transmission mechanism, wherein the connecting rod structure is arranged between the needle bar cam and the needle bar driver and is used to drive the needle bar driver to move up and down, and the presser foot transmission mechanism is arranged between the presser foot drive wheel and the presser foot mechanism and is used to drive the presser foot mechanism to move up and down. Since the main shaft is arranged outside the head module, the strength of the main shaft can be increased by increasing the outer diameter of the main shaft, so as to better meet the structural requirements of the embroidery machine. When the main shaft needs to be replaced, only the relevant components of the sub-drive transmission mechanism need to be disassembled from the main shaft, and there is no need to disassemble the components on the head module.

The utility model discloses a diversion tunnel bottom plate lining structure which comprises a bottom plate layer constructed by concrete, a cushion layer constructed by rock ballast is tightly attached to the lower side of the bottom plate layer, closed ends with strip-shaped structures are arranged on the two sides of the bottom plate layer, a plurality of drainage holes are evenly formed in the bottom plate layer, and the drainage holes are communicated with drainage pipes. According to the diversion tunnel bottom plate lining structure, in-situ backfilling utilization of rock ballast in the tunnel is achieved; according to the lining structure, excavated rock ballast serves as a cushion material of bottom plate concrete, the excavated rock ballast and the bottom plate concrete are poured into an integrated scum concrete structure, and after pouring is completed, the concrete and the rock ballast on the lower portion are integrated, so that the structural requirement of tunnel bottom plate lining is met, and rock ballast materials excavated in a tunnel can be digested on site.

The utility model relates to a lightweight disc brake caliper body which comprises a caliper body main body, and the caliper body main body comprises a box body butt joint section, a bridge frame butt joint section and a middle connecting section connecting the box body butt joint section and the bridge frame butt joint section. The middle connecting section is jointly composed of two connecting subsections, and the connecting subsections are obliquely arranged; the connecting subsection is provided with an arc-shaped top surface, an arc-shaped bottom surface, an inner side wall and an outer side wall, the inner side wall and the outer side wall are connected with the arc-shaped top surface and the arc-shaped bottom surface, and the inner side wall comprises a first oblique line section, a second oblique line section, a third arc-shaped section and a fourth oblique line section; the outer side wall comprises a fifth oblique line section, a sixth arc-shaped section, a seventh oblique line section, an eighth arc-shaped section, a ninth oblique line section and a tenth oblique line section. Compared with the prior art, the middle connecting section has the advantages that the structure of the middle connecting section is redesigned, the position, with the high strength requirement, of the connecting section is thickened, other positions of the connecting section are thinned, the structural requirement of the middle connecting section can be met, and the weight of the middle connecting section is reduced.

The utility model discloses a novel Z type purlin section reinforcing device, including main beam, Z type purlin, reinforcing part and fastener, Z type purlin is fixed on the main beam, and reinforcing part is detachably connected with connecting piece through fastener, and reinforcing part has the structure that matches with the section of Z type purlin, is used for being combined with Z type purlin and forms reinforcing. It is suitable for improving the bearing capacity and overall stability of Z type purlin structure, satisfies the demand of purlin enhancement in building roof reconstruction and new project. The device is simple in design, strong in adaptability, can reduce material use, optimizes construction process, significantly improves construction efficiency and economic benefits, and provides an efficient, economical reinforcing solution for steel structure building.

The application belongs to the technical field of form-finding of tensegrity structures, and particularly relates to a form-finding method for tensegrity structures based on a dynamic programming method. For any tensegrity structure, the dynamic programming method is used to determine the connection method of all rod members in the configuration, the balance matrix theory analysis and the geometric stability determination are comprehensively used, and the configuration meeting the requirements of the tensegrity structure is obtained. The main steps are as follows: firstly, the configuration is determined, the number of nodes is determined, and the node coordinates are input; the connection method of the cable is determined; the set of optional rod members of the configuration is determined; the dynamic programming table is established, and the boundary conditions are filled; the problem is solved step by step according to the recursive formula, and whether it is a tensegrity is determined according to the constraint conditions such as the balance matrix theory analysis and the geometric stability determination; and finally, the mode of all feasible rod member combinations of the determined configuration is output.

This utility model belongs to the field of gas turbine technology, and specifically relates to an air intake device for an aero-derivative gas turbine compressor. The air intake device includes an intake casing, characterized in that: a shroud is fixed inside the intake casing, an inlet rectifier cone is fixed outside the intake casing, a cleaning pipeline is installed on the inlet rectifier cone, and a hydraulic motor drive and lubrication assembly is installed in the inner ring of the intake casing. The hydraulic motor drive and lubrication assembly is enclosed within the shroud, and its pipeline is connected to the hydraulic motor drive and lubrication assembly pipeline. The beneficial effects of this utility model are: it achieves gas turbine intake rectification, avoids leakage of parts affecting intake efficiency, and reduces intake resistance. By accelerating and uniformly introducing external air into the compressor first stage through a tapered channel, it reduces airflow separation, ensures that air enters the compressor flow path smoothly along the axial direction, and avoids compressor efficiency reduction or surge due to uneven flow velocity.

The invention discloses a bearing type micro truck body rear suspension structure meeting the heavy load requirement, and belongs to the field of automobile manufacturing. The rear suspension structure of the micro truck body comprises two longitudinal beams arranged in a spaced mode and a first cross beam fixed between the two longitudinal beams, box-shaped supporting structures are fixed to the tops of the longitudinal beams, a second cross beam is fixed between one ends of the tops of the two box-shaped supporting structures, and each box-shaped supporting structure comprises an inverted-U-shaped top plate; an inner flanging side plate and an outer flanging side plate are fixed to the two ends of the bottom of the inverted-U-shaped top plate, a U-shaped bottom plate is fixed to the bottoms of the inner flanging side plate and the outer flanging side plate, the U-shaped bottom plate is fixed to the top of the longitudinal beam, an n-shaped rear cover assembly is fixed to the end, away from the second cross beam, of the box-shaped supporting structure, and the bottom of the n-shaped rear cover assembly is fixed to the top of the longitudinal beam. The rear suspension structure is realized by adopting an upper, middle and lower three-layer overlapped structure, so that the torsional rigidity and the bending rigidity of the rear suspension are controlled and improved, and the requirement that the loading of the whole vehicle is greater than 1.5 tons is met.

The utility model discloses a coupling heat pipe type low-temperature mechanical refrigerator which comprises a compressor, an expansion machine, a connecting pipe and a heat pipe system, and the compressor comprises a shell heat exchanger; the expansion machine comprises a hot end heat exchanger; the connecting pipe is arranged between the compressor and the expansion machine and connects the compressor with the expansion machine; a part of the heat pipe system is arranged between the shell heat exchanger and the hot end heat exchanger, a part of the heat pipe system is arranged in the shell heat exchanger, and a part of the heat pipe system is arranged in the hot end heat exchanger. According to the technical scheme, the heat pipe is coupled with the refrigerator shell, heat dissipation of a traditional refrigerator only depending on the hot end of an expansion machine which is small in heat exchange area and large in heat dissipation capacity is converted into heat dissipation of the surface of the compressor shell and the surface of the hot end of the expansion machine together, and the heat exchange area is effectively increased; the problems that small and medium-sized low-temperature mechanical refrigerators are small in heat exchange area, high in heat exchange temperature difference, high in hot end temperature, small in heat exchange amount and the like are solved.

The present invention discloses a modular embroidery machine, which belongs to the technical field of embroidery machines, and includes a transversely placed main shaft and a main drive motor for driving the main shaft, and also includes a plurality of head modules arranged at intervals in the transverse direction, wherein the main shaft is arranged outside each head module, each head module is provided with a transversely placed needle bar drive shaft, and a split drive transmission mechanism is provided between the needle bar drive shaft and the main shaft of each head module. Since the main shaft is arranged outside the head module, the strength of the main shaft can be improved by increasing the outer diameter of the main shaft, so as to better meet the structural requirements of the embroidery machine, and the change of the outer diameter of the main shaft will not affect the external dimensions of the head and the internal installation space of the head. When the main shaft needs to be replaced, it is only necessary to disassemble the relevant components of the split drive transmission mechanism from the main shaft, and there is no need to disassemble the components on the head module, which greatly reduces the number of components that need to be disassembled, and is conducive to reducing the difficulty of maintenance and improving the maintenance efficiency.

The embodiment of the present invention provides a semiconductor structure and a manufacturing method thereof, the semiconductor structure comprising: a substrate, the substrate having a conductive structure therein; a first lower electrode and a second lower electrode stacked in sequence, the first lower electrode being located between the second lower electrode and the substrate, the first lower electrode being in a columnar shape, the second lower electrode being in a groove shape, the first lower electrode being electrically connected to the conductive structure; a first dielectric layer and a first upper electrode, the first dielectric layer covering the side wall surface of the first lower electrode, the first upper electrode being located on a side of the first dielectric layer away from the first lower electrode; a second dielectric layer and a second upper electrode, the second dielectric layer covering the inner wall and bottom surface of the second lower electrode, the second upper electrode being filled in the groove of the second lower electrode. The present invention provides a new capacitor structure, which is beneficial to improving the capacitance value of a single capacitor structure.