31results about How to "Reduce rubbing" patented technology

The invention discloses a portable parking auxiliary device which comprises a base body. The base body is internally provided with four symmetrical lifting cavities. The upper end walls and the end walls, away from the center of the base body, of the lifting cavities are provided with openings. Each lifting cavity is provided with a lifting block in a left-right sliding fit mode. A rack is arranged on the lower end face of each lifting block. A first cavity with an upward opening is formed in each lifting cavity. First threaded rods are rotatably installed in the left end wall and the right end wall of each first cavity. First motors in power connection with the first threaded rods are installed at the ends, near the base body, of the first cavities. The first threaded rods are provided with eudipleural first threaded blocks in a threaded fit mode, wherein the first threaded blocks are slidably matched with the first cavities. A connecting block is fixedly connected to the upper end face of each first threaded block. A connecting cavity with an upward opening is formed in each connecting block.

The invention discloses an oscillating head heater, which comprises a heating body, a decelerating motor assembly, a rotating mechanism, and a base. The heating main body, the rotating mechanism, and the base are sequentially connected, and the decelerating motor assembly is arranged on the rotating mechanism. Above: the rotating mechanism includes a turntable, a positioning shaft, and a bottom cover, the turntable is connected to the bottom cover through the positioning shaft, and the bottom cover is connected to the base. The invention has the advantages that the heater can swing as a whole, has a large air supply range, and adopts the method of multi-point balls to reduce the rotational friction force, so that its stability and reliability are greatly improved.

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.

A linear vibration motor, comprising a housing and a vibration assembly accommodated in the housing. The vibration assembly comprises a mass (3) and an elastic support member (2); the elastic support member (2) is disposed between the upper end surface of the mass (3) and the inner surface of the top of the housing, to suspend the mass (3) in the housing by means of the elastic support member (2); the elastic support member (2) is of a sheet structure, and comprises a first fixed end (21), a second fixed end (22), and a connecting arm (23) disposed between the first fixed end (21) and the second fixed end (22), and symmetrically distributed cantilevers (24) are provided at both sides of the connecting arm (23); one of the first fixed end (21) and the second fixed end (22) is fixed on the mass (3), and the other of the first fixed end (21) and the second fixed end (22) is fixed on the housing. The solution can simplify the structure of the elastic support member, and achieve stable vibration of the vibration assembly.

The invention discloses an automobile lighting system, which belongs to the field of automobiles. The automobile lighting system includes: a left direction lamp, which is arranged on the left side of the automobile body, for providing illumination to the left area of ​​the automobile body; a right direction lamp, which is arranged on the right side of the automobile body, for The right side area provides lighting; the control device is used to control the left direction light to emit light when the car turns left and the ambient brightness is less than the threshold value, and controls the right direction light to emit light when the car turns right and the ambient brightness is lower than the threshold value. The system can provide side lighting when the car is turning, improve the lateral lighting range of the vehicle body when the vehicle is turning, increase the driver's field of vision on the side of the body, and protect the safety of passengers and pedestrians. In addition, the side lights in the automotive lighting system are directly arranged on both sides of the vehicle body, without complicated and precise mechanisms, and have high reliability and low cost.

The invention relates to a pile foundation construction method, comprising step S1 of construction preparation, first leveling the site, determining the piling sequence, and then setting out on the site and preparing equipment for construction; step S2 of burying the casing; and step S3 of using a rotary excavator Drill into the hole; step S4 uses a flat bottom sand bucket to clear the hole, and step S5 uses construction machinery to lift the guide and lower it. During the lowering process, the guide should be as close as possible to the center of the drilling hole. Move the guides horizontally so that the guides are suspended on the casing, then put in a plurality of guides in turn, and make them evenly distributed on the casing, and then lower the reinforcement cage through the area surrounded by the guides; step S6, measure the sediment at the bottom of the hole , and determine whether secondary hole cleaning is required according to the design requirements; step S7, pouring underwater concrete; during the entire construction process, there is very little void soil falling to the bottom of the borehole, which effectively improves the load capacity of the cast-in-place pile.

The invention relates to the technical field of natural gas transmission, in particular to a gas transmission method for a natural gas station, wherein the gas transmission device used includes a base, a ceiling, a load-bearing wall, a partition plate, a gas supply mechanism, a gas filling mechanism, a walking position Mechanism and PLC control cabinet, a ceiling is set directly above the base, and two load-bearing walls are fixedly installed between the base and the ceiling. A partition plate is installed between the center of the lower end surface and the center of the upper end surface of the base to improve the efficiency of refueling for vehicles with different specifications; two warning lights are fixedly installed at the lower end of the ceiling, both of which can play a warning role , especially in areas with poor light, it can reduce the problem of collision of gas-filled vehicles; a rewinding mechanism is fixedly installed in the gas-filling mechanism to facilitate the retraction of the gas-filling pipe and avoid the reduction of gas transmission efficiency due to the winding of the gas-filling pipe Problems arise while improving gas transmission safety.

The invention discloses a stamping type automatic stamping machine, which belongs to the technical field of office automation. The stamping type automatic stamping machine includes: a bracket; a stamping mechanism, a grooved cam and two arc-shaped members are fixedly connected to the rotating shaft, the arc-shaped member is provided with an arc-shaped guide edge, and one end of the rotating shaft is fixedly connected to the output shaft of the motor , the motor is fixedly connected with the platform; the stamp fixture is connected with the groove of the groove cam through a needle bearing; the slide rail printing groove, the two ends of the L-shaped ink pad rod are connected with the ink pad groove and the cross bar, and the two ends of the cross bar The ends are fixedly connected to the left ends of the two slide rails, and the two gaps of the two slide rails are slidingly connected, the right end of the slide rails is provided with a bearing, and the two ends of the compression spring are connected to the cross bar and the bracket. The present invention will re-stain the ink pad every time the stamp is stamped, avoiding the problem that the seal is not clear after stamping for many times, the ink pad tank will withdraw from the stamping area when stamping, avoiding the problem of the ink pad tank polluting the paper, and the mechanism operates when stamping It is stable and has less shaking, which can also reduce the occurrence of rubbing.

The invention relates to a deep water sample collection device and method in a borehole, belongs to the technical field of water sample collection, and solves the problems of low sampling efficiency and poor working reliability of the existing collection device. The collection device includes a mounting frame, a collection assembly, a take-up and pay-out mechanism and a controller. The collection assembly includes a collection cylinder with multiple collection chambers. The collection chamber is provided with a suction port, a sample inlet and a sample outlet, and the sample inlet is provided with an inlet. There is a liquid level sensor on the collection cylinder; the winding roller of the take-up and pay-out mechanism is rotatably arranged on the installation frame, the first end of the pulling wire is wound around the winding roller, and the second end passes through the wire assembly and the collection The component is connected, the driving component is used to drive the winding roller to rotate to realize the take-up and pay-off of the pulling wire, and the wire component is used to make the acquisition component located on the center line of the borehole; the controller is connected to the driving component and the injection switch component for communication . The present invention has the advantages of simple structure and convenient operation, can accurately collect water samples at a specified depth, and has high sampling efficiency.

The invention discloses a rotary robot welding fixture comprising an arranging and installing table, a front clamping seat, a rear chuck and side pressure seats. The front clamping seat is arranged above the arranging and installing table, one side of the front clamping seat is provided with the circular rear chuck, and the multiple side pressure seats are arranged at the edge of the rear chuck inan equal-radian manner. A first motor is arranged above the front clamping seat. The rotary robot welding fixture has the beneficial effects that when a welding mechanism performs welding work, a fourth motor drives robot components on a clamping and connecting seat to rotate to achieve fine adjustment of the positions, and it is ensured that the welding work of the welding structure on the robotcomponents is more precise in position and higher in efficiency; and the automatic degree of rotary clamping fixing work by the welding fixture on the robot components is higher, and much time and labor are saved in the using process. Four second motors drive the front clamping seat to move in two mounting frames, a plurality of first hob gears cooperate with a gear to rotate to ensure that the front clamping seat and the robot components are adjusted and moved more smoothly and securely, and collision and abrasion between all parts of the front clamping seat are reduced.