9results about How to "Does not affect circulation" patented technology

The utility model discloses a large -scale casting turning device, including base, the upper surface both ends of base symmetry is provided with at least two fixed blocks, is provided with the guide rod between two corresponding fixed blocks at the both ends of base, is provided with two trapezoidal seat on the guide rod and slides, the upper surface of trapezoidal seat is installed T -shaped piece, and the upper surface of T -shaped piece is provided with U -shaped groove. Large -scale casting only needs to install the rotating shaft or rotating column etc. at its both ends, then through hoisting equipment places it in the U -shaped groove of T -shaped piece, can form a stable gyrostat. The turning process does not need complicated hoisting positioning and repeated adjustment, only needs to exert a suitable initial force (such as human power or simple mechanical power), can utilize gravity or inertia and realize the 180 degree turning of casting. Significantly shorten the turning time, simplify the operation process, improve production efficiency.

The utility model discloses a hoisting type heat recovery fresh air machine which comprises a machine shell, an outdoor air inlet and an outdoor air outlet are formed in the side wall of the machine shell, and a first inserting groove and a second inserting groove are formed in the machine shell. The first inserting groove is located in the inner side of the outdoor air inlet and communicated with the outdoor air inlet. The second inserting groove is positioned on the inner side of the outdoor air outlet and is communicated with the outdoor air outlet; a first filter element and a second filter element are respectively inserted into the first inserting groove and the second inserting groove; outdoor fresh air passes through the outdoor air inlet and the first filter element and then enters the machine shell. And indoor air in the machine shell passes through the second filter element and then is exhausted from the outdoor air outlet. The hoisting type heat recovery fresh air machine can solve the problems that when the filter element of the hoisting type fresh air machine is replaced, the cover plate needs to be dismantled, and operation is inconvenient, and the filter element replacement process is simpler, more convenient and faster.

The utility model relates to sweet potato processing technical field discloses a rotatable all -round sweet potato processing drying device, include: drying box, the bottom surface is equipped with a plurality of supporting legs, and the front side is hingedly equipped with sealed baffle door, the circulation drying subassembly includes the heating plate and circulation fan, and the heating plate symmetrical fixedly arranged on the inside wall of drying box, and the circulation fan is fixedly arranged on the upper wall of drying box, and its air inlet end stretches into drying box, and the air outlet end is connected with the circulation pipe, and the other end of circulation pipe stretches into the inside lower end of drying box, the drying frame includes the shaft and the tray, and the shaft rotatoryly connected is equipped in drying box, and is driven by the reduction motor fixedly arranged on the bottom surface of drying box, and the tray is fixedly arranged on the lateral wall of the shaft, and the tray bottom surface and lateral wall are equipped with mesh, and the tray is detachably equipped with the cover plate, the utility model's advantage lies in: setting rotation structure makes the degree of sweet potato contact heat source in the drying process to be about the same, ensures the drying quality consistency.

This utility model discloses a rebar connecting sleeve forming device, belonging to the field of rebar sleeve technology. It includes an operating table, with a support plate fixedly connected to one side of the top of the operating table. A tapping machine is fixedly connected to the upper outer side of the support plate, and a cooling mechanism is provided on one side of the tapping machine. A transmission mechanism is provided on the side of the top of the operating table away from the support plate, and a sleeve body is provided on the top of the transmission mechanism. An electric telescopic rod is fixedly connected to the lower side of the support plate, with a first clamping block on one side of the electric telescopic rod and a second clamping block on the side of the top of the operating table away from the electric telescopic rod. This utility model includes a transmission mechanism; a conveyor belt can deliver the sleeve body to below the tapping machine. A hydraulic cylinder, by driving two limiting plates, can push the sleeve body, keeping it aligned on a straight line. When the conveyor belt is running, the limiting plates move away from the sleeve body. Through the action of the conveyor belt and the limiting plates, the sleeve body can be kept stable during movement.

The application provides a pressure relief device for liner hanger, which comprises a ball seat shell, a pressure receiving seat arranged in the ball seat shell, a ball seat mechanism arranged on the pressure receiving seat and capable of being connected with a pressure holding ball, wherein after the pressure holding ball is put in, the pressure holding ball falls on the ball seat mechanism to hold pressure above, the liner hanger is hung, and then the pressure holding is continued to open the pressure holding environment in the pipe for circulating well cementation operation. The liner hanger can be hung by putting the ball in the liner to hold pressure, the pressure in the pipe is slowly released through the pressure relief mechanism by continuing to hold pressure, and besides, the conventional liner string structure is not changed, the installation is simple and convenient, and the sealing is reliable.

The utility model provides a kind of washing barrel workshop metal is used to steam tank caustic soda cooking device, including bottom plate, its top is fixedly connected with mounting frame, multiple through holes are equipped on bottom plate, door frame is rotatably connected on mounting frame side, mounting frame is equipped with the fixed component that door frame is limited, mounting frame and door frame are all fixedly connected with filter screen and the support component of support filter screen, mounting frame, bottom plate and filter screen form a holding groove between, multiple lifting lugs, its opposite fixed mounting is in mounting frame. This kind of washing barrel workshop metal is used to steam tank caustic soda cooking device, can play the effect of improving caustic soda cooking effect, and the setting of filter screen ensures the placement of metal, and does not affect the circulation of lye, improves caustic soda cooking effect.

This utility model relates to the field of assisted reproductive technology, specifically to an embryo transfer tube, comprising a first tube segment and a second tube segment connected to each other. The inner diameter of the second tube segment is larger than that of the first tube segment. A piece of absorbent cotton is placed inside the second tube segment. An annular limiting seat is provided on the inner wall of the second tube segment at the end away from the first tube segment, and the inner diameter of the annular limiting seat is smaller than that of the second tube segment. By setting an annular limiting seat at the end of the larger-diameter second tube segment, this utility model can reduce the air intake cross-sectional area, increase airflow resistance, and make the negative pressure generated by the suction bulb more gradual. This facilitates the operator's precise control of the embryo aspiration position, thereby reducing the risk of embryos being accidentally aspirated into the second tube segment. Simultaneously, the absorbent cotton placed inside the second tube segment further intercepts any embryos and fluids that may be accidentally aspirated.