48results about How to "Leak won't" patented technology

The present invention relates to a strip (1) for connecting and / or sealing a joint (10). Said strip comprises a first layer (7) and a reinforcement element (9). Said strip having a first surface (2) and a second surface (12), said first and second surfaces have a longitudinal extension (3) and a transverse extension (4), said longitudinal extension having longitudinal sides (5), the longitudinal sides comprises edge means (6). Said first layer and / or edge means is made of polymeric material. Furthermore, said first layer and edge means hermetically cover the reinforcement element, and said edge means during the connecting and / or sealing of the joint provide a slope (11), said slope extending from the first surface (2) downwards against a plane, said plane substantially being aligned with the second surface (12), so that the edge means (6) enhances the adhesion of the strip to the joint. The invention also relates to methods for manufacturing the strip as well as to uses of said strip.

An injection device of a molded metal material prevents a melt metal device from leaking between a cylinder and a spray nozzle piece when a cylinder liner is closely arranged in the cylinder. A pressure-injection cylinder of the injection device comprises the components as follows: a cylinder-shaped cylinder: the cylinder-shaped cylinder is provided with a first installing part in an opening in the front end, a second installing part with a larger diameter and an opening for delivery formed in the top area of the cylinder; a cylinder-shaped cylinder liner: the cylinder-shaped cylinder liner is provided with a flange in a circumference in the front end and a hole for delivery in the preset area of the top area, after plugged in the cylinder from the opening side the cylinder liner closely contacts an inner surface of the cylinder through heat expansion to install the flange in the first installing part, and the hole for delivery in the same position with the opening; a cylinder-shaped spray nozzle piece: the cylinder-shaped spray nozzle piece is provided with a spray nozzle in the end, a flange which is arranged in the second installing part in a circumference in the end, and a back surface of the flange contacts the front surface of the flange in the cylinder liner; a connection ring surrounding the cylinder of the spray nozzle piece: the back surface of the connection ring is connected with the front surface of the spray nozzle piece and is fastened in the surface in the front of the cylinder through a bolt, and the spray nozzle piece is fastened with the flange of the cylinder liner used on the cylinder and plugged between the two elements.

The present invention discloses a horizontal disc-type plastic injection molding machine, comprising a turntable device, an injecting device and a die closing device. The turntable device consists of a rotary disc and a driving unit which drives the disc to rotate; the injecting device comprises an injecting stand, a horizontal pre-plasticizing mechanism , a vertical pre-plasticizing mechanism and an injecting head which are arranged on the injecting stand; the die closing device comprises a die closing stand and a die closing cylinder which is arranged on the die closing stand beneath the disc; the piston of the die closing cylinder which can move up and down, is fixedly connected to the injecting head through the injecting stand to drive the injecting head to move up and down. The invention can shorten the journey of the piston of the die closing cylinder and shorten the time on the journey, thus production efficiency is effectively improved.

In a printing machine, an ink reservoir is formed between an ink fountain and an ink fountain roller, and then ink is supplied to a plate cylinder via a ductor roller that is capable of moving forwardand backward with respect to the ink fountain roller. The printing machine is provided with: a base which supports the ink fountain; the ink fountain; a slide mechanism which controls a gap between the tip of the ink fountain and the ink fountain roller by sliding the ink fountain along the base; a cleaner which removes ink from the ink fountain roller; a forward / backward motion mechanism which moves the cleaner back and forth between a position at which the cleaner comes into contact with the ink fountain roller and a non-contact position; and a controller. The controller performs control onthe slide mechanism and the forward / backward motion mechanism, expands the gap so as to allow both ink and impurities therein to pass through the gap, and brings the cleaner into contact with the inkfountain roller to remove the ink and impurities therein from the roller.

The invention relates to a sleeve-type material sealing device. The sleeve-type material sealing device comprises M upper sleeves (1), N lower sleeves (2), a pipeline (3) and a material layer bearing device (4), wherein M is greater than or equal to 1, and N is greater than or equal to 1. The upper ends of the upper sleeves (1) are fixedly connected with the pipeline (3); the lower ends of the upper sleeves (1) are open pipe ends; the upper ends of the lower sleeves (2) are open pipe ends; the lower ends of the lower sleeves (2) are fixedly connected with the material layer bearing device (4); and the material layer bearing device (4) is sleeved on the pipeline (3). According to the invention, through a mutually and loosely sleeved cylindrical structure, the pipeline is prevented from being fixedly connected with the material layer bearing device, the pipeline and the material layer bearing device can perform relative movement in a certain range, and materials cannot be leaked.

The invention discloses a self-balancing stop valve with a piston type valve core and a hidden rod, which comprises a valve cover (7) and a valve body (33) provided with a front valve cavity (31) and a rear valve cavity (32), wherein a passage (34) is formed between the front valve cavity (31) and the rear valve cavity (32). Guide sleeves (5) in vertical sealed sliding connection and the piston type valve core (2) in which a cavity is formed are arranged in the rear valve cavity (32); the bottom surface (18) of the piston type valve core (2) is used for blocking the passage (34); the guide sleeves (5) are hermetically and fixedly connected with the valve body (33); a lifting component is connected with the piston type valve core (2); the valve cover (7) is hermetically connected with the valve body (33); the inner surfaces of the piston type valve core (2), the guide sleeve (5) and the valve cover (7) encircle an upper chamber (21); and the upper chamber (21) is communicated with the rear valve cavity (32) through a guide pipe component (13). The self-balancing stop valve has the characteristic of remarkable energy-saving effect.

The invention relates to a canopy type material sealing device which comprises an upper canopy (1), a lower canopy (2), a pipeline (3) and a material layer bearing device (4), wherein the upper end of the upper canopy (1) is fixedly connected with the pipeline (3); the lower end of the upper canopy (1) is sheathed outside the lower canopy (2); the lower end of the lower canopy (2) is fixedly connected with the material layer bearing device (4); the upper end of the lower canopy (2) is sheathed on the pipeline (3) to ensure that the lower canopy (2) is capable of relatively moving along the axial direction of the pipeline (3); and the material layer bearing device (4) is sheathed on the pipeline (3) to ensure that the material layer bearing device (4) is capable of relatively moving along the axial direction of the pipeline (3). Through the upper and lower canopies which are sheathed in a loosening manner, the fixed connection between the pipeline and the material layer bearing device is avoided, so that the pipeline and the material layer bearing device are capable of relatively moving in a certain range and the materials do not leak.

The invention discloses a two-way controllable magneto-rheological damper without leakage and without sealing ring, which comprises a cylinder body, a piston, and a piston rod. The left and right ends of the cylinder body are respectively airtightly connected with a left bellows and a right bellows. The left bellows is airtightly connected with the left end cap, the left and right end caps are airtightly connected with the piston rod, the left and right bellows are airtightly connected with the left and right end caps, and the centers of the left and right end caps are airtightly connected with the piston rod; Connecting pipe; a ring-shaped left coil and a ring-shaped right coil are fixedly connected inside the cylinder, and the gap between the inner hole of the ring-shaped coil and the piston rod forms a damping channel; the connecting pipe is provided with a left one-way The valve and the right check valve piston are located between the left check valve and the right check valve. The present invention adopts the bellows as the seal, which avoids the leakage between the piston rod and the sealing ring due to wear, and the bellows does not bear the working pressure, as long as the bellows is within the fatigue life of the damper, the damper will not leakage.