8results about How to "Even weight distribution" patented technology

The utility model relates to a kind of double pump head water pump and vehicle, including impeller, motor assembly, pivot and shell, cavity is provided in shell, impeller, motor assembly and pivot are all set in cavity, impeller has two, motor assembly is set between two impellers, pivot penetrates impeller and motor assembly;Motor assembly includes the stator made of printed circuit board.This water pump connects motor assembly between two impellers, two impellers share a motor assembly, reduce the volume of water pump, and motor uses the stator made of printed circuit board, printed circuit board stator uses lightweight material and by printed circuit technology copper wire is directly printed on circuit board, with the characteristics of low cost, small size, light weight, so relative to traditional motor can reduce water pump volume and weight, reduce cost.

The utility model discloses a parallel shaft motor bogie for a new energy working condition vehicle, which comprises a bogie frame, an axle, a gear box and a motor, and the axle is rotatably connected to the bogie frame through a bearing box; the gear box is hung on a bogie frame, and an output shaft of the gear box is connected with the axle; the motor is installed on the bogie frame, and an output shaft of the motor is connected with an input shaft of the gear box. The utility model has the beneficial effects that the motor and the gear box are installed on the bogie frame, and the weight of the motor and the gear box is shared by the bogie frame, so that on one hand, the extra load applied to an axle and wheels is greatly reduced; on the other hand, the weight distribution of the bogie is more uniform, the problems of vehicle shaking, deviation and the like caused by non-uniform weight distribution are reduced, and the stability and the safety of vehicle running are improved.

This utility model discloses a boxing bag technology, specifically a hanging inflatable boxing bag, including an inner air bladder forming a closed first air chamber with an inflation valve at the top. An outer bag body is fitted over the inner air bladder, forming a second closed chamber between the inner air bladder and the outer bag body. The top of the outer bag body has a hanging interface. A counterweight absorbent layer fills the second closed chamber. The cushioning structure includes multiple sets of longitudinal reinforcing ribs on the outside of the outer bag body and annular shock-absorbing bands connected to the longitudinal reinforcing ribs. Through the double-layer structure, the inner air-filled layer and the outer counterweight absorbent layer allow water to be absorbed evenly, preventing swaying during punches. The counterweight absorbent layer can simulate muscle rebound, enhancing the training experience. At the same time, the boxing bag is small in size when not filled with water or inflated, making it easy to carry.

This invention provides a method for controlling Spartina alterniflora and promoting natural mangrove restoration based on rolling mulching and in-situ mud slurry, belonging to the field of ecological control technology. The method involves mechanically rolling Spartina alterniflora to flatten most of it and press it into the tidal flat soil. Then, a biodegradable mulch film is laid on top, and mud slurry is extracted and applied to form a mud slurry cover layer. A mangrove seed interception and planting device is then installed on the mud slurry cover layer to prevent mangrove seeds from growing naturally, thereby reducing the cost of Spartina alterniflora control and improving the efficiency of Spartina alterniflora control.

The invention discloses an injection mold. The injection mold comprises a front mold plate, a rear mold plate, a forming part, an ejector plate and a demolding ejector, the front mold plate is provided with a front mold core; the rear mold plate is provided with a rear mold core; a cavity of the front mold core and a cavity of the rear mold core can jointly form a mold cavity, a sub-runner is arranged between the front mold plate and the front mold core, one end of the sub-runner is communicated with the mold cavity through the front mold core, and the other end of the sub-runner is communicated with one side, deviating from the front mold core, of the front mold plate; according to the injection mold, the two forming parts are symmetrically arranged relative to the middle part of the cavity, the cavity of the rear mold core is composed of the middle part and the two edge parts, and the limiting surfaces on the forming parts and the demolding ejector pin arranged in the middle are matched, so that the weight distribution of the formed wire buckle is uniform; and during ejection, stress is balanced, effective limiting is achieved, the problems of wire buckle demolding deviation and rotation can be effectively solved, and accurate material taking of a mechanical arm is facilitated.

The utility model relates to the technical field of railway detection, in particular to a rail inspection vehicle with a hollowed-out frame, comprising: a vehicle body comprising a front axle, a rear axle, wheels, a hollowed-out frame, a control box, a battery and a communication device, the wheels are mounted at two ends of the front axle, the wheels are mounted at two ends of the rear axle, and the hollowed-out frame is mounted on the vehicle body; the hollow frame is connected between the front axle and the rear axle, and the control box, the battery and the communication equipment are all mounted in the hollow frame; the detection devices are installed on the two sides of the vehicle body and connected with the hollowed-out vehicle frame. According to the inspection vehicle disclosed by the invention, through the design of the hollow frame, the control box, the battery and the communication equipment are intensively mounted in the hollow frame, so that a complete equipment mounting space is formed. According to the centralized installation mode of the equipment, the weight distribution of the whole vehicle is more uniform, the driving stability is improved, the weight of the vehicle body is reduced due to the structure of the hollow frame, and the manufacturing cost is reduced.

This application relates to a ventricular assist device (VAD), which includes a pump body and a motor. The pump body includes a pump housing and an outlet tube, with the outlet tube disposed on the outer peripheral surface of the pump housing and extending outward from the outer peripheral surface. The motor and pump body are arranged along the axial direction of the VAD. The motor includes a housing and a cable outlet assembly. The housing is connected to the pump housing, and the cable outlet assembly is disposed on the housing. The cable outlet assembly extends from the housing along the outer peripheral surface of the housing in a bent direction away from the outlet tube. This allows the cable outlet assembly to protrude radially with a smaller height relative to the outer peripheral surface of the housing, thereby reducing the outer diameter and volume of the VAD. This improves the ease of implantation and wearing comfort of the VAD, and also prevents the swaying of the cable within the cable outlet assembly from interfering with the artificial blood vessel connected to the outlet tube, thus achieving stable blood pumping by the VAD.

The utility model discloses a synchronous pulley and 3D printer, said synchronous pulley includes: main part, has first end and second end opposite to each other, the main part is provided with the through main body channel between first end and second end, from the first end to second end at least part of main body channel's cross-sectional area gradually increases, surrounds main body channel, and the first end and the second end of main body channel around the main body channel. A tooth-shaped structure meshed with a synchronous belt is arranged on the outer circumference of at least part of the main body part; the inner sleeve is provided with a head end and a tail end which are opposite to each other, a through inner sleeve channel is formed between the head end and the tail end of the inner sleeve, the main body part is arranged on the periphery of the inner sleeve in a sleeving manner through the main body channel, and the inner sleeve comprises a locking section comprising the head end and a sleeving section which is matched and connected with the main body channel in a sleeving manner; the locking structure is used for applying axial pressure to the first end of the main body part, so that the sleeving section of the inner sleeve abuts against the inner wall of the main body channel; the synchronous pulley can solve the problems that a traditional synchronous pulley is prone to dislocation and eccentric rotation and unreliable in fixation.