63results about How to "Guaranteed itinerary" patented technology

The present invention provides a frame structure of a two-wheel motorcycle, which can simplify the structures of components for constituting the frame thereby realizing cost reduction. The frame structure of the two-wheel motorcycle comprises the following components: a head pipe; a left main frame and a right main frame which extends from the head pipe to back part of the motorcycle body obliquely and downwards; auxiliary pipes which are respectively connected with the back ends of the left main frame and the right main frame and respectively extend upwards and downwards from the back end ofthe main frames; and a pivot plate which is configured in front of the auxiliary pipes and support a rear fork. The cross section of each auxiliary pipe is circular.

The invention relates to a large-caliber pilot unloading type electromagnetic valve which comprises a valve body, a valve cover, a valve core component and an electromagnetic valve drive control component; the valve core component comprises a main valve core and a pilot valve core; the main valve core is positioned at a valve base; the upper part of the main valve core is of a cylindrical structure, and a pressure relief hole is formed in the bottom of the cylindrical structure; a throttle hole and a communicating hole are also formed in the main valve core; the throttle hole is formed in the medium inlet side of the valve body; one end of the communicating hole is communicated with an upper cavity of the main valve core, and the other end is communicated with the pressure relief hole; the pilot valve core is arranged in the cylindrical structure of the main valve core in a nesting manner, and a guide ring is mounted between the main valve core and the pilot valve core; when the pilot valve core moves, the main valve core is driven by the guide ring to move. The electromagnetic valve further comprises a diaphragm; the inner edge part of the diaphragm is fixedly connected with the main valve core, and the outer edge part of the diaphragm is fixedly connected with the valve body; the caliber of the solenoid valve is greater than or equal to 50 mm, the caliber of the valve seat is greater than or equal to 80 mm, and the upward / downward movement stroke of an armature is greater than or equal to 6 mm. The large-caliber pilot unloading type electromagnetic valve provided by the invention is suitable for working conditions under which the drift diameter is large and the flow resistance is small, and is small in size and light in weight.

The invention relates to a grounding switch device which comprises a first shell, a second shell, a driving device, a second conductor, a third conductor, a fourth conductor and a first conductor, wherein the first shell and the second shell are connected into a whole through an insulating plate, the driving device and the second conductor are arranged in the first shell, the third conductor and the fourth conductor are arranged in the second shell, and the first conductor is arranged between the first shell and the insulating plate; the inner part of the first conductor is electrically connected with the second conductor through a first spring contact finger, and the outer part of the first conductor is electrically connected with the second shell through a connecting line; one end of the third conductor is fixed in the second shell through an insulating piece, and the other end of the third conductor is electrically connected with the fourth conductor through a second spring contact finger; a fixed contact which is matched with the inserting end of the second conductor is arranged on one side of the third conductor; the driving device comprises a first crank arm, a second crank arm and a rotating shaft, wherein the first crank arm and the second crank arm are fixedly connected in sequence, the rotating shaft passes through the first shell, the first crank arm is arranged in the first shell, the free end of the first crank arm is connected with the driving end of the second conductor, the second crank arm is arranged outside the first shell, and the free end of the second crank arm is connected with the output end of a driving mechanism.

The invention provides a large-stroke water knife based on a screw rod, and includes a front and a rear longitudinal guide rail racks (1) that are arranged in parallel; the invention is characterized in that the longitudinal guide rail rack (1) includes at least two parts that are connected together or put together, the horizontal upper surface of each part of the longitudinal guide rail rack (1)is provided with a guide rail (2) and each part of the longitudinal guide rail rack (1) is arranged on a respective ball screw rod (3); the two neighboring ball screw rods (3) are parallel with each other and has an overlapping zone B with the length no less than the width L of a sliding plate (4); each ball screw rod (3) has a respective nut (5), which is connected with the corresponding slidingplate (4), each side of the two sides of the sliding plate (4) is connected with a sliding block (6), which is flexibly arranged on the corresponding guide rail (2); a labyrinth sealing device (10) is arranged on the guide rail (2); screw rod bracing frames (11) used for supporting the ball screw rod (3) so as to prevent the ball screw rod from sinking due to the gravity are arranged between the longitudinal guide rail rack (1) at intervals. The invention realizes the enlargement of the stroke length of the water knife through a building block combination mode and has the advantages of high precision and strong processing capacity.