31results about How to "Reduce rubbing" patented technology

A multiple hitch assembly and method of use thereof including a hitch platform having a channel member and multiple hitch member having a block base. A dampening member may be affixed such that coupling of the multiple hitch member by locked engagement of received through holes of the block base and paired side holes disposed in flanges of the channel member compresses the dampening member upon the recessed column of the hitch platform to absorb and thus attenuate the load and associated torque imparted by movement and rub between the hitch platform and multiple hitch member to thereby reduce associated rattle noise, and vibration.

The invention discloses a PCB automatic collecting and placing machine and a working method thereof. The machine comprises a mounting seat, supporting frames, rolling and conveying discs, a collectingand placing cabinet, a rotary disc, an air blowing frame, a transverse rail rod, a longitudinal rail rod and a grabbing and placing seat, wherein the supporting frames are arranged at the two ends ofthe mounting seat, and the rolling and conveying discs are horizontally arranged above the two supporting frames. The machine has the beneficial effects that a plurality of air blowing cylinders on the air blowing frame synchronously blow hot air to a board body, so that the drying performance of a PCB is guaranteed when the PCB is collected and placed, dust and impurities on the PCB are blown away, so that the tidiness of the PCB when the PCB is collected and placed is guaranteed, then a hydraulic pump II on the collecting and placing cabinet drives a rotary disc to move downwards into a receiving bucket through a hydraulic rod, after a mechanical arm clamps the PCB through clamping jaws, the hydraulic rod drives the rotary disc to rise, a third rolling wheel drives the mechanical arm toextend out of a movable groove, and place the PCB into a loading groove of a loading frame, so that the automatic collecting and placing of the PCB can be completed, the operation of the collecting and placing machine is more time-saving and labor-saving, and the work is more efficient.

The invention discloses an automobile lighting system and belongs to the field of automobiles. The automobile lighting system comprises a left lateral lamp, a right lateral lamp and a control device, wherein the left lateral lamp is arranged on the left side of an automobile body and used for providing lighting for a left side area of the automobile body, the right lateral lamp is arranged on the right side of the automobile body and used for providing lighting for a right side area of the automobile body, and the control device is used for controlling lighting of the left lateral lamp when an automobile turns left and the environmental brightness is smaller than the threshold value and lighting of the right lateral lamp when the automobile turns right and the environmental brightness is smaller than the threshold value. The system can provide lateral lighting when the automobile turns, the lateral lighting range of the automobile when the automobile turns is increased, the automobile body lateral view of a driver is enlarged, and safety of passengers and pedestrians is ensured; and additionally, the lateral lamps in the automobile lighting system are directly arranged on the two sides of the automobile body, a complex and precise mechanism is not needed, the reliability is high, and the cost is low.

The invention discloses a vehicle and a steering knuckle thereof, the steering knuckle of the vehicle comprises a steering knuckle body, the steering knuckle body is provided with a plurality of mounting holes and a bearing hole used for mounting a hub bearing, and the steering knuckle body can be fixedly connected with the hub bearing through the plurality of mounting holes; one end of the steering arm is fixedly connected with the steering knuckle body; a ball pin mounting hole is formed in the steering arm; the steering arm can be connected with a tie rod of a vehicle through a ball pin. The connecting line of the centers of any two installation holes is a first straight line, the connecting line of the center of the ball pin connected with the ball pin installation holes and the centerof the bearing hole is a second straight line, and the included angle between at least one first straight line and the second straight line of the knuckle is smaller than or equal to 30 degrees. Thestructural design of the steering knuckle of the vehicle can effectively reduce the abnormal voice generated by the steering knuckle.

The invention discloses a sewage anaerobic reactor, and relates to a sewage treatment device. The sewage anaerobic reactor is used for solving the problem of a poor slag discharging effect of common reactors. The sewage anaerobic reactor comprises a tower body, a water distribution device which is arranged in the tower body and at the bottom of the tower body and a sewage discharging pipe which is arranged at the bottom of the tower body in a communication mode, wherein the bottom of the tower body is of a conical shape, a funnel-shaped slag setting trap mouth is formed in the bottom of the tower body due to the conical structure, the sewage discharging pipe communicates with the lowest point of the slag setting trap mouth, and the water inlet direction of the water distribution device is in the tangential direction of the tower body. The sewage anaerobic reactor has the following advantages and effects that water distribution branch pipes in the water distribution device are distributed in an annular shape along the sewage discharging pipe, and rotary turbulent flow is formed in the tower body when water is introduced through the water distribution branch pipes, so that agglomeration at the bottom of the tower body is disturbed; and centred motion of the agglomeration is generated under the action of push flow, therefore the agglomeration is gathered at the center of the tower body, and then more of the gathered agglomeration can enter the sewage discharging pipe, so that the slag discharging effect of the reactor is improved.

The invention relates to a device and method for collecting a water sample at a specified depth in a drill hole, and belongs to the technical field of water sample collection. The problems of low sampling efficiency and poor working reliability of an existing collecting device are solved. The collecting device comprises a mounting frame, a collecting assembly, a take-up and pay-off mechanism and a controller, the collecting assembly comprises a collecting cylinder with a plurality of collecting chambers, each collecting chamber is provided with an extraction opening, a sample inlet and a sample outlet, and the sample inlet is provided with a sample inlet switch assembly; a liquid level sensor is arranged on the collecting cylinder; a winding roller of the take-up and pay-off mechanism is rotationally arranged on the mounting frame, the first end of a pull wire is wound around the winding roller, the second end of the pull wire penetrates through a wire guiding assembly to be connected with the collecting assembly, the driving assembly is used for driving the winding roller to rotate so as to achieve take-up and pay-off of the pull wire, and the wire guiding assembly is used for enabling the collecting assembly to be located on the center line of the drill hole; and the controller is in communication connection with the driving assembly and the sample inlet switch assembly. The collecting device is simple in structure, convenient to operate, capable of accurately collecting the water sample at the specified depth and high in sampling efficiency.

The invention discloses a lightweight design method of an electromagnetic type automatic balancing device, belongs to the field of electromagnetic type automatic balancing of rotating machinery, and mainly optimizes the structure of a balancing head and reduces the mass of the balancing head in a mode of combining structural design and electromagnetic simulation. The method has the advantages that structural design and electromagnetic simulation are combined, firstly, the size boundary of the electromagnetic automatic balancing device is determined according to the installation space, and a finite element model is preliminarily established in electromagnetic simulation software; secondly, electromagnetic simulation is conducted on structure parameters such as the thickness of an excitation ring, the thickness of a permanent magnet, the number of teeth and the length of the teeth, the shape of the permanent magnet and the number of ampere turns, and on the premise that the self-locking and driving functions of the balance weight disc are met, the axial and radial thicknesses of related structures of the electromagnetic type automatic balancing device are reduced; and finally, based on an electromagnetic simulation result, light weight of the electromagnetic automatic balancing device is achieved with the assistance of structural design.

The invention relates to an automatic lock body with separated upper lock catch and anti-swing bolt. The automatic lock body comprises a lock body panel, a lock body shell, a main bolt plate, an auxiliary bolt plate and a shifting fork. The lock body panel is fixed to one side of the lock body shell, the main bolt plate and the auxiliary bolt plate are installed in the lock body shell, and the main bolt plate is located above the auxiliary bolt plate; a first reset spring is installed between one end of the main bolt plate and the lock body shell, and the other end of the main bolt plate extends out of the lock body panel and is provided with an ejection bolt; an upper lock key and a reset button are connected to the main bolt plate; the shifting fork is located in the lock body shell and is in contact with the lock body shell; a second reset spring is arranged between one end of the auxiliary bolt plate and the lock body shell; a double-face bolt is installed on the auxiliary bolt plate and extends out of the lock body panel; and the auxiliary bolt plate is in contact with a lock key in the lock body shell. The automatic lock body has the beneficial effects of being few in mechanism, many in function, low in manufacturing cost and reliable in performance.

The invention discloses a fruit bagging label capable of prompting harvesting time. The fruit bagging label comprises a fruit bagging label layer and a vacuum aluminum foil protecting bag, wherein thefruit bagging label layer is provided with a non-setting adhesive layer, a color development layer and a waterproof layer sequentially from bottom to top; the non-setting adhesive layer comprises silicon-coated protective paper, an adhesive layer, a priming and a white surface material; the color development layer is prepared from liquid anthocyanin extracted from natural plant materials and additives, and the additives comprise ascorbic acid, hydrogen peroxide, metal ions and alkaline matters; and the anthocyanin in the color development layer is degraded to fade 5 to 200 days later, and white of the white surface material of the non-setting adhesive layer is shown, so that the aim of indicating fruit harvesting is achieved. According to the fruit bagging label, by using the characteristic that the same fruit tree variety is basically stable in fruit development time, through sticking indicating labels of different fading time to bottoms of fruit bags, the problem that harvesting isdifficult due to the fact that fruits on fruit trees are different in ripening time and cannot be identified after bagging is solved, mechanical damage to surfaces of the fruits is reduced, and the harvesting identification of ripe fruits is facilitated.

The invention discloses a closed screening system of a rotary support of a pneumatic motor. Screening plate equipment comprises an inner ring frame body and an outer ring frame body; the screening plate equipment is hooped on a roller body by the inner ring frame body, and is contacted with the inner surface of an antirust hole by the outer ring frame body; a screening plate is fixedly connected between the inner ring frame body and the outer ring frame body, so that particle impurities flowing from one end of the antirust hole are directly isolated by the screening plate, and antirust liquidin the antirust hole is conveyed to a closing part by the screening plate in real time; and the inner ring frame body and the outer ring frame body are both of plastic block structures. The problems of damage of the rotary support caused by flowing of the particle impurities into the antirust hole and the rotary support and frequent falling of bronze wire at the end from a frame body blockage bodyplacing hole into the rotary support in the prior art are prevented.

The invention relates to an inspection well lid supporting pad and a manufacturing method thereof, and belongs to the technical field of municipal pipeline engineering. The inspection well lid supporting pad comprises a radial supporting pad, a supporting framework structure and a light-resistant layer. The supporting framework structure is connected with the radial supporting pad, and a light-resistant layer is arranged at the top end of the radial supporting pad. The supporting framework structure comprises a supporting framework boss, a supporting framework and a supporting framework positioning structure. The supporting framework boss is arranged on the supporting framework; the supporting framework boss is perpendicular to the supporting framework; and one end of the supporting framework is connected with the supporting framework positioning structure. A well lid and a well ring can be completely separated, so that collision between the well lid and the well ring is avoided, noise pollution of the well lid is reduced, and the service life of the well lid is prolonged.

The invention discloses a bone-conduction microphone, which belongs to the technical field of audio transmission, and comprises a shell provided with a limiting hole; a positioning column which is located at the center of the shell, wherein the positioning column is matched with the limiting hole to limit free rotation of the positioning column; a central magnet which is arranged on the positioning column in a sleeving manner; the two groups of reverse induction coils which are annularly arranged on the central magnet; a lead wire, wherein one end of the lead wire is arranged between the two groups of reverse induction coils through an FPC conductive rubber plate so as to fix the two groups of reverse induction coils into a whole, and the other end of the lead wire penetrates out of the shell; and suspension pieces which are symmetrically arranged at the two ends of the central magnet. A traditional matching mode of the shell and the positioning column is changed, a traditional round hole matching mode is changed into a triangular or polygonal matching mode, center magnetic circuit deviation caused by tolerance matching can be effectively reduced, the magnetic gap difference in the symmetrical direction can be reduced, and therefore the problem that a voice coil vibrates up and down to generate collision is solved.

The invention relates to the technical field of natural gas transmission, in particular to a gas transmission method for a natural gas station. A gas transmission device used in the method comprises abase, a ceiling, load bearing walls, a partition plate, a gas supply mechanism, a gas adding mechanism, a walking mechanism and a PLC cabinet, wherein the ceiling is arranged over the base, the two load bearing walls are fixedly installed between the base and the ceiling, the two load bearing walls are consistent in specification and are symmetrically distributed about the center dividing line ofthe upper end face of the base, and the partition plate is installed between the center position of the lower end face of the ceiling and the center position of the upper end face of the base. Gas adding of gas adding vehicles in different specifications improves the gas adding efficiency. Two alarm lamps are fixedly installed at the lower end of the ceiling, so that a warning effect can be achieved, and especially in areas with poor light, the problem that scratching of the gas adding vehicles can be reduced; and a winding mechanism can be fixedly installed in the gas adding mechanism, so that a gas adding pipe can be retracted conveniently, the problem that the gas transmission efficiency is reduced due to winding of the gas adding pipe is avoided, and meanwhile, the gas transmission safety is improved.

The invention provides a household vehicle which comprises an vehicle body, a headlamp is arranged at the front end of the vehicle body, and the headlamp is located at the position, close to the middle, above an engine hood at the front end of the vehicle body; the cross section of the headlamp is in the shape of an isosceles triangle. According to the household vehicle, the headlamp is arranged at the position, close to the middle, above the engine hood, the headlamp is not prone to being damaged when a traffic accident happens, the probability of collision and damage of the headlamp is reduced, and the maintenance cost is reduced; the section of the headlamp is in the shape of an isosceles triangle, and certain wind resistance can be reduced in the driving process.