46results about How to "Guaranteed quiet effect" patented technology

In this vehicle body floor structure, stiffeners that extend to a rear of a front cross member and that have a U-shaped concave portion that is open at to top thereof when viewed in a cross-section of a vehicle are joined to a bottom surface on both side portions of floor panel. Beads that have a U-shaped concave portion when viewed in a cross-section of the vehicle are provided at a rear portion of the floor panel, and the beads are aligned with the concave portion of the stiffeners and are provided continuously with the stiffeners.

The invention discloses a vacuum cleaner structure which comprises a main machine shell, a dust suction mop, a universal wheel, a plurality of moving wheels and an induced draft motor. The main machine shell is provided with a dust cup component and a suction opening seat. The suction opening seat is connected with the dust suction mop through a dust suction pipe. The dust cup component comprises a dust cup, a cyclone cone and inner dust bin. The cyclone cone is provided with a straight wind inlet, a downwardly-spiral wind guide channel and a cyclone outlet which are sequentially communicated. The straight wind inlet is communicated with the suction opening seat. The cyclone cone is provided with a cone inner cylinder. The cone inner cylinder is provided with a vertical wind return channel communicated with the cyclone outlet. The cyclone outlet is communicated with the inlet of the vertical wind return channel and the inner dust bin. The outlet of the vertical wind return channel is communicated with the induced draft motor. The vacuum cleaner structure has the advantages that the wind inlet and outlet channels are reasonable in structure, and dust can be separated and collected by cyclone; the vacuum cleaner structure is high in dust suction ability and is provided with a multistage filter structure which is good in filter effect; noise during wind discharge can be reduced, and vibration and the noise can be reduced effectively to keep a good silent effect by a stability strengthening structure.

The invention discloses a composite aeroplane with a rotor and an inflatable air bag with vector thrust, which includes an aerostat and a rotor power module. The rotor in the rotor power module is made of a 8-shaped frame formed by laser and a flexible film to form a blade, which is installed on the largest diameter circular surface of the aerostat at equal intervals in the circumferential direction. It is divided into horizontal and vertical layouts, which can realize vector The propelled rotor module is regularly programmed to output power, which can complete the rapid movement of the aircraft in all directions, including climbing, descending, hovering, and spinning. The top of the aerostat is designed with a flexible thin-film solar cell module, and the bottom is designed with a charging and central control unit. The invention is mainly used in adjacent spaces, enclosed indoor spaces and semi-enclosed spaces. It not only has the advantages of long battery life, large ceiling, stable floating and low flight noise of the aerostat, but also has the advantages of high maneuverability of the multi-rotor UAV. Excellent performance and handling performance.

[Problems] To suppress the occurrence of abnormal noise from a ball valve due to vibrations during the vehicle is traveling, while employing a simple structure. [Means for solving the problems] A check valve 6 for preventing a backflow of a puncture repair liquid from a bottle container 2 is disposed in a first flow path 3 for taking compressed air from a compressor 8 into a bottle container 2. The check valve is formed by a ball valve 21 disposed in a valve housing zone Y which is located in a vertical passage part 15 of the first flow path 3 and between an upper opening 3U and a valve seat portion 20. The ball valve 21 is formed from a rubber elastic body having a specific gravity of 1.1 or more, and a rebound resilience of 15% or less.

The present invention improves the cross-sectional shape of a striker so that a latch can be maintained in close contact with a striker while the latch is fitted to the striker without back-and-forthclearance, in order to solve the problem of a conventional striker, in which a door is shaken to make noise due to application of various external forces including changes in indoor and outdoor air pressure while a latch installed on the door is caught by a door striker installed on a door frame. The present invention comprises: a latch assembly provided on a side surface of a door (30), which isconnected to and operated by a handle member; and a striker (10), to which a latch (20) of the latch assembly is fitted, installed on a door frame (40), wherein the striker (10) has a front latching protrusion (12) for latching a front surface (22) of the latch (20) and a rear latching protrusion (14) for latching a rear surface (24) of the latch (20), wherein the front latching protrusion (12) iscomposed of a right-angled surface (12a) of a front end thereof and an inclined surface (12b) the inside thereof.

An engine-driven generator is provided that is formed by supporting on a frame (2) an engine (3) and a generator (4) driven by the engine (3), wherein the frame is formed by integrally connecting via a cross member (7) lower side sections of a pair of left and right side frames (2b, 2b) formed by bending a steel pipe into a U-shape, a control box (34) housing and holding an electrical component (53, 55) is mounted on open end parts of the two side frames (2b, 2b) in order to reinforce the frame (2) by connecting the open end parts to each other, and an assembly of the engine (3) and generator (4) is resiliently supported on the cross member (7). The structure of the frame of the engine-driven generator can thereby be simplified, the frame can be reinforced by the control box that houses and supports the electrical component, and the frame can be made lightweight.

The invention provides a roller type washing drier which is provided with a blast device. In order to ensure the air in the bucket through the cycle blast route with a filter chamber, a dehumidifying device and a heating device to realize the drying procedure of the washing, the blast device combines the air inlet side at the cycle air outlet side of the filter chamber by the manner of mutual shake-proof structure part, thereby realizing integration.

The invention discloses a motor air pump for a dust collector. The motor air pump comprises an air inlet pipeline, a fan outer cover, a fan and an exhaust pipeline, wherein a first opening is formed in the top of the air inlet pipeline; a second opening is formed in the bottom of the air inlet pipeline; a third opening is formed in the bottom of the fan outer cover; the fan outputs air towards the third opening; a main body of the exhaust pipeline is of a spiral structure; a fully enclosing exhaust hood is arranged outside the exhaust pipeline; a first end of the exhaust hood is closed; a first end of the exhaust pipeline penetrates through the first end of the exhaust hood and is connected with a third opening of the fan outer cover in a closed mode; a second end of the exhaust hood is open; the internal space of the exhaust hood is divided into a plurality of closed buffer cavities through partition plates; a second end of the exhaust pipeline sequentially penetrates through the partition plates and is drawn out of a second end of the exhaust hood; and a plurality of evenly formed through holes are formed in the pipeline wall, in the exhaust hood, of the exhaust pipeline. The noise of the air pump of the dust collector can be effectively lowered.

The invention discloses a mechanical type linear reciprocating synchronizing device. A separation bolt can be rotationally located at one end of a conveying belt and is axially placed along the moving direction of the conveying belt, a mechanical arm can be located on a linear guide rail in a sliding mode, and the linear guide rail is fixed at one side of the width direction of the conveying belt. The mechanical type linear reciprocating synchronizing device is further provided with a motor, a main driving shaft, a first transmission device, a second transmission device, a third transmission device and a cam mechanism. Motive power of the motor is output to the main driving shaft, the first transmission device, the second transmission device and the third transmission device respectively enable motive power of the main driving shaft to be transmitted to a driving roller of the conveying belt, the separation bolt and the cam mechanism, and the cam mechanism drives the mechanism arm to slide along the linear guide rail. The mechanical type linear reciprocating synchronizing device is large in power, strong in rigidity, and accurate in synchronism. During high-speed movement, the whole device can keep a mute effect, avoids shock and impact caused by heavy load and the high-speed movement, responds quickly, and improves production efficiency of a production line.