4results about How to "Reduce fluid pressure" patented technology

The invention discloses a multi-layer composite springback corrugated board and a production method thereof, and aims to provide the multi-layer composite springback corrugated board which is large in elastic coverage range, simple in structure and high in elastic buffering performance. According to the technical scheme, the multi-layer composite springback corrugated board is characterized in that a first springback layer is arranged in the middle of a corrugated coating layer, and a second springback layer is arranged in the middle of the corrugated coating layer; the second springback layer is arranged between the first springback layers to form a composite springback interlayer, the first springback layer is provided with a first springback space after the second springback layer is stressed, when the second springback layer is stressed to the maximum value, the second springback layer is further provided with a second springback space, the inner paper and the outer paper extrude the first springback layer, and the composite springback interlayer is formed. The first springback layer extrudes the second springback layer to form a first springback space and a second springback space, the first springback space and the second springback space are compressed, when pressure acting on the inner paper and the outer paper disappears, the second springback layer forms acting force on the first springback layer again, springback reset is formed, and therefore the optimal springback effect on the corrugated board is achieved, and the service life of the corrugated board is prolonged. The invention is suitable for the technical field of corrugated board production and manufacturing.

The application relates to a four-way regulating device and a temperature control system applying the same, and relates to the technical field of temperature regulating devices, which comprises a valve shell, a rotating shaft, a valve cavity formed in the valve shell, the rotating shaft being rotationally connected to the valve shell and inserted into the valve cavity, four valve holes being arranged on the valve shell and being communicated with the valve cavity, a movable valve plate being fixedly arranged on the rotating shaft, a static valve plate being arranged in the valve cavity of the valve shell, the static valve plate being located between two adjacent valve holes and being in sliding sealing connection with the rotating shaft, the movable valve plate being in sliding sealing connection with the cavity wall of the valve cavity, and the movable valve plate and the static valve plate being capable of separating the valve cavity to form two independent spaces. The application has the effects of reducing the stress of the movable valve plate, reducing the deformation risk caused by fluid pressure under long-term work, and prolonging the service life of the four-way regulating device.

This utility model provides a high-strength shut-off valve with diversion and pressure reduction capabilities, including a valve body. The valve body, diversion counteractor, and discharge port are integrally integrated and interconnected. A valve cover assembly is installed on the valve body. The lower end of a drive valve rod installed on the valve cover assembly extends into the valve body and is connected to a valve disc disposed within the valve body. The valve disc is located above a valve seat inside the valve body. A handwheel is fixedly installed on the upper end of the drive valve rod. This utility model incorporates a diversion counteractor within the valve body. A diamond-shaped diversion platform divides the liquid into upper and lower flow channels. A trapezoidal flow-blocking guide plate and the platform form a double diversion counteracting path. This effectively reduces pressure through liquid kinetic energy offsetting and also blocks and disperses impurities, adapting to complex working conditions and improving system stability and safety.

The application relates to the technical field of tobacco processing equipment, and discloses a glue storage device for a forming machine, which comprises a glue storage tank, an opening is formed in the top of the glue storage tank, a communication port is formed in the bottom of the glue storage tank, a valve is arranged on the communication port, a pipe body is in communication with the communication port, a cover body is arranged on the opening and detachably and sealingly connected with the edge of the opening, a pressure regulating structure for changing the liquid pressure in the glue storage tank is arranged on the cover body, a through hole is formed in the cover body and used for allowing the driving end of the pressure regulating structure to enter, and a supporting frame is fixedly connected with the bottom of the glue storage tank. The glue storage device is matched with the pipe body to realize glue supplement for the forming machine, the situation that the middle line glue is manually filled into the forming machine is avoided, and the glue supplement work for the forming machine is convenient and fast.