216results about How to "Optimize connection structure" patented technology

A laminated core segment 30 into which a stator core is split has a core main body 31 that extends in an arc shape. On one end section of the core main body 31 there is formed a connecting section 40, and on the other end section there is formed a connecting section 41. The connecting section 40 is able to connect with the connecting section 41 of another laminated segment 30. In the connecting section 40 there is provided a protruding protrusion section 48, and the protrusion section 48 interferes with an interference section 53 on the connecting section 41 side when the stator core 30 is forced towards the direction in which the stator core is split. As a result, an assembly operation of the stator core becomes easier, and a magnetically excellent connecting structure can be obtained.

The present invention is a sling system utilizing a rear sling fitting for a long firearm, such as a rifle. Such fittings typically are positioned between the stock and receiver. It presents a fitting body with an aperture to slide over a rifle receiver tube and a connection bar extending from a reverse of the fitting body. A point-type sling attachment may then be attached to the connection bar and be able to slide left and right across the back of the weapon, allowing for quickly adaptable left or right positioning of the weapon. Registration geometry may be added and positioned to further allow interface with weapon geometry and prevent rotation of the fitting during use. The connection bar may be positioned on another component of the weapon, such as the receiver or the stock, should the weapon not have a receiver extension tube. A convertible sling and forward sling mount are also disclosed for cooperative use with the fitting, completing the system.

The invention relates to an assembled low-gravity-center efficient vertical shaft wind turbine which comprises a fixed tower for with the determined vertical rotation axis and wind wheels supported on the tower. Each wind wheel comprises a wheel frame and blades distributed on the periphery of the wheel frame. The blades include the first blades and the second blades, and the first blades and the second blades are alternately distributed at intervals and are vertically-extending blades with streamline-shaped cross sections respectively. Each wheel frame comprises a set of spokes which are evenly distributed in the circumference direction, horizontally extend and correspond to each other in an up-and-down mode, the outer ends of the spokes corresponding to each other in the up-and-down mode are connected with the corresponding upper portions and the corresponding lower portions of the first blades respectively in a fixed or rotary mode, and the middles of the spokes corresponding to each other in the up-and-down mode are connected with the corresponding upper portions and the corresponding lower portions of the second blades respectively in a fixed or rotary mode. By means of the assembled low-gravity-center efficient vertical shaft wind turbine of the structure, the wind energy use performance of the first blades can be effectively developed, the starting torque of the assembled low-gravity-center efficient vertical shaft wind turbine can be further improved through the second blades, and the low-speed wind energy use performance of the low-wind-speed blades is effectively developed.

The invention discloses an integral pure aluminum electric vehicle frame. The integral pure aluminum electric vehicle frame comprises threshold beams arranged on the two sides of a battery pack in a mirror image structure and used for bearing the battery pack, one ends of the threshold beams are in threaded connection with a front longitudinal beam assembly through a longitudinal beam fixing seat,and the other ends of the threshold beams are in threaded connection with a rear longitudinal beam assembly through a longitudinal beam fixing seat; the front longitudinal beam assembly is provided with mounting brackets, wherein the mounting brackets are in riveted connection with the front longitudinal beam assembly, and are arranged in a symmetrical structure, and provided with shock absorbersand upper control arms which are integrated; and the rear longitudinal beam assembly is provided with shock absorber brackets, wherein the shock absorber brackets are in riveted connection with the rear longitudinal beam assembly and are arranged in a symmetrical structure. The beneficial effects of the integral pure aluminum electric vehicle frame are mainly embodied in that a production technology is simple, an assembly mode of small-range welding and large-range assembling is adopted to ensure assembly precision and connecting strength, and the production efficiency is greatly improved while safety is ensured; and in addition, the integral pure aluminum electric vehicle frame has high universality and is wide in applicability.

The invention relates to a temporary house used in a housing construction project. The temporary house includes a plurality of vertically-arranged columns arranged at equal intervals and wall plates arranged between the adjacent columns, the wall plates are vertically arranged, the side surfaces, perpendicular to the ground, of the wall plates and the columns are clamped, the side faces, facing the wall plates, of the columns are provided with clamping slots where the wall plates are clamped, long-strip-shaped sealing strips are slidably connected into the clamping slots, and the columns are internally provided with locking devices for pushing the sealing strips to abut against the side faces, located in the clamping slots, of the wall plates; and a roof is jointly overlapped above the wall plates, and the roof and the wall plates are fixedly connected. Through the arrangement, the temporary housing is quickly installed in the manner that the wall plates and the columns are clamped, meanwhile, gaps between the wall plates and the columns are plugged through the sealing strips, the sealing strips are extruded by the locking devices to generate deformation to further plug the gaps between the wall plates and the columns, the sealing performance of the wall plates and the columns is improved, and the indoor thermal insulation performance and sound insulation effect are further improved.

The invention relates to the technical field of leather manufacturing, and discloses a preparation process of fully-penetrated cow fiber leather base cloth. The preparation process includes a batching process, a chemical fiber net forming process, a cow leather fiber net forming process, and a process of laminating the chemical fiber net and the cow leather fiber net into a net, wherein the batching process includes taking chemical fibers and cow leather fibers as raw materials for preparing fully-penetrated cow fiber leather base cloth, and batching according to a proportion; the chemical fiber net forming process sequentially includes the working procedures of opening, carding, net laying, pre-wetting and pre-penetrating: in the cow leather fiber net forming process, making cow leather fiber raw materials into a cow leather fiber net by adopting airflow net forming or water flow net forming; and the process for laminating the chemical fiber net and the cow leather fiber net into a net sequentially includes the working procedures of laminating the net, spunlacing, vacuum suction and drying, and the net laying working procedure includes warp cross laying and weft cross laying. The preparation process improves the physical properties of the cow fiber leather base cloth and reduces the production cost.

The invention provides a speaker module and a portable electronic device with the same. The portable electronic device comprises a bottom shell, a metal bottom plate, a circuit board, the speaker module and an antenna module; the metal bottom plate is arranged on the bottom shell; the circuit board is arranged on the metal bottom plate, and comprises a wireless communication module; the speaker module is arranged on the bottom shell, wherein the speaker module comprises a speaker module body and a speaker cavity; the speaker cavity is arranged in the speaker module body; the antenna module is arranged outside the speaker module body; the antenna module corresponds to the speaker cavity, wherein the antenna module comprises a feed-in point and a grounding surface; the feed-in point is electrically connected with the wireless communication module; and the grounding surface is connected with the metal bottom plate. According to the invention, the connecting structure of a speaker and an antenna is improved, so that the thickness of the portable electronic device is greatly reduced, and the position of the speaker module in the portable electronic device is more flexible.

The invention discloses a carbon brush compaction forming machine. The carbon brush compaction forming machine comprises a frame, a workbench, a hopper, a feeding mechanism and a compaction mechanism, wherein the workbench is arranged on the frame, the feeding mechanism comprises a cylinder or a hydraulic cylinder and a feeding box, and the cylinder or the piston rod of the hydraulic cylinder is connected with the feeding box; the hopper is disposed above the feeding box, the compaction mechanism comprises a motor, a crankshaft, a connecting rod, a guide sleeve, a male mold and a female mold, the motor and the guide sleeve are installed on the frame, the output end of the motor is connected with the crankshaft, the crankshaft is rotationally connected with the frame, the crankshaft, the connecting rod and the male mold form a crank link mechanism, the male mold is in sliding connection with the guide sleeve, the female mold is connected with the workbench, and the male mold and the female mode are in opposite arrangement; and the cylinder or the hydraulic cylinder and the motor are electrically connected with a controller. By using the carbon brush compaction forming machine, the carbon brush compacting efficiency is quite high.

The invention relates to an automatic sampler capable of sampling by simultaneously using multiple cutting rings. The automatic sampler comprises a main rod (3), an expansion rod (4) and a drill bit (7), wherein the drill bit (7) is mounted at the bottom end of the main rod (3); the automatic sampling device is characterized in that the main rod (3) is connected with the expansion rod (4) by a driving device, the driving device drives the main rod (3) and the drill bit (7) to move axially up and down, multiple clamping slots are axially formed in different positions of the main rod (3), one cutting ring is arranged in each clamping slot, and soil with different depths can be simultaneously and automatically sampled by the multiple cutting rings. The driving device drives the drill bit (7) to automatically rotate, so a traditional manpower driving mode is changed, the sampling efficiency is greatly improved, and the physical power of a sampling person can be saved.

The invention relates to a ring cutter sampler which can simultaneously use multiple ring cutters for sampling, comprising a female rod (3) and a drill bit (7), the drill bit (7) is installed at the bottom end of the female rod (3), and other The feature is that: the female rod (3) is provided with a plurality of slots at different positions along the axial direction, and a ring knife is placed in each slot, and the plurality of ring knives realize simultaneous sampling of soil at different soil depths.

The invention provides a rapid lung-heat-clearing sputum excretion device for respiratory medicine nursing, relates to the technical field of medical instruments, and solves the problems that adsorption type fixation cannot be realized through structural improvement, and elastic locking of an air suction structure and drawing limiting of the air suction structure cannot be achieved through structural improvement. The rapid lung-heat-clearing sputum excretion device for respiratory medicine nursing comprises a collecting barrel; the collecting barrel is connected with the air suction structure;and an auxiliary structure is installed on the air suction structure. An elastic telescopic rod is welded to the tail end of a connecting rod, and the head end of the elastic telescopic rod is of anarc-shaped structure; The head end of the elastic telescopic rod is connected with a clamping groove in a clamped mode, the elastic telescopic rod and the clamping groove jointly form an elastic locking structure of a piston rod, and when the piston rod moves leftwards by 20 cm, the elastic telescopic rod makes contact with a handle of a piston pipe, so that on one hand, backflow of the piston rodunder the negative pressure effect of the lung can be prevented through elastic locking, and on the other hand, the elastic telescopic rod can also realize drawing limiting of the piston rod.

The invention provides a frame comprising two side beams and two crossbeams arranged between the two side beams. Each crossbeam is connected with the side portion of the corresponding side beam, the crossbeams and the side beams are connected through crossbeam connecting seats, and the crossbeam connecting seats are located at a large stress area at the junctions of the side beams and the crossbeams. The design aims to improve connecting structures between the crossbeams and the side beams, the large stress area is arranged on a transition seat, the transition seat is a forge piece, and the forge piece has better mechanical performance than a welding piece. On this basis, the invention further provides a railway train with the side beams.

The invention discloses a liner of an electric water heater with an improved structure and a manufacturing process thereof. The liner comprises a first liner and a second liner, wherein the first liner and the second liner are communicated and connected with each other; two ends of a center circle of the first liner are provided with a first sealing end cover and a first flange end cover respectively; two ends of a center circle of the second liner are provided with a second sealing end cover and a second flange end cover respectively; the cross section of the center circle of the first liner is in a D shape; the plane in which the vertical edge of the D shape is positioned is provided with limbers; and the center circle, the second sealing end cover and the second flange end cover of the second liner are tightly contacted, matched, welded and fixed with the first liner respectively. Compared with the prior art, the manufacturing process has the advantages of improving a connection structure between the two liners, simultaneously arranging the sequence of a welding process reasonably, mixing cold and hot water evenly, eliminating potential problems of quality and security, simple procedure, less welding lines, high hot water yield, corrosion resistance, long service life, low cost, and suitability for promotion and use of the electric water heater.

The invention discloses a preparation method of a carbon-based additive used for a lead-carbon negative electrode, and belongs to the technical field of lead-carbon battery manufacturing. A lead layeron the surface of the carbon-based additive used for the lead-carbon negative electrode prepared through carbon material sensitization, activation and chemical lead plating is uniform and compact indistribution, the hydrogen evolution overpotential of carbon material can be obviously improved, and the hydrogen evolution reaction of the negative electrode of a lead acid battery is inhibited; andthe compatibility of carbon material and lead is promoted, so that a good lead and carbon connecting structure is constructed. The high rate part state-of-charge (HRPSoC) simulation test charge-discharge cycles of the lead acid battery with the negative electrode containing the carbon-based additive used for the lead-carbon negative electrode can reach 10555 circles, and is 11 times of that of a contrast lead acid battery. According to the preparation method, sulfation of the negative electrode of the part state-of-charge (PSoC) can be inhibited obviously, and the cycle life of the lead acid battery is prolonged.