7results about How to "Increase injection pressure" patented technology

The application discloses an injection molding method for a toy light guide pipe, which can avoid the occurrence of flow lines and bubbles in the toy light guide pipe after injection molding. The technical scheme is as follows: an injection molding method for a toy light guide pipe, which comprises a mold provided with a cavity, and the cavity is provided with a gate through which glue is injected into the cavity, and the glue injection is divided into five stages, i.e., a first glue injection stage, a second glue injection stage, a third glue injection stage, a fourth glue injection stage and a fifth glue injection stage. The glue injection speed of the first glue injection stage is the largest, the glue injection speed of the third glue injection stage is larger than that of the second glue injection stage and the fourth glue injection stage, and the glue injection speed of the fifth glue injection stage is the smallest. The glue injection pressure of the first glue injection stage is smaller than that of the second glue injection stage, and the glue injection pressure of the second glue injection stage is smaller than that of the third glue injection stage. The application belongs to the technical field of injection molding.

The utility model relates to the field of unmanned plane discloses a kind of cleaning unmanned plane with multi-directional rotary spray arm, including the cleaning unmanned plane with multi-directional rotary spray arm, including body, the lower surface of the body is fixedly connected with support frame, the outer wall of the support frame is inserted with storage box, the front end of the storage box is fixedly connected with water delivery block, the inner wall of the water delivery block is provided with first water delivery pipe, and the front end of the water delivery block is provided with adjusting assembly;The adjusting assembly includes limit block, and the limit block is fixedly connected at the front end of water delivery block.In the utility model, the adjusting assembly of water delivery block front end is set to spray head pipe adjusting angle, when preparing to spray head pipe adjusting angle, first motor drives worm to rotate, is engaged with the meshing of rotating block outer wall worm wheel, drives rotating block and spray head pipe to rotate around second water delivery pipe, so that the upward angle of spray head pipe can be realized.

The invention discloses an oil injection system and a vehicle, and the oil injection system comprises an oil pump, an oil injector and a plurality of oil pipes. The oil sprayer is provided with a plurality of oil inlet holes; the inlet ends of the multiple oil pipes are all connected with the oil pump, the outlet ends of the multiple oil pipes are connected with the multiple oil inlet holes in a one-to-one correspondence mode, the multiple oil pipes comprise at least one first oil pipe, and the first oil pipe has the optimized length; the first oil pipe is configured to have the maximum pressure after fuel oil moves in the first oil pipe by the optimized length. According to the oil injection system, the pipe length of at least one oil pipe can be optimized, and therefore redundancy of the pipe length is reduced.

The utility model provides a track self-cleaning pressurizing spraying mechanism which is characterized in that fixing clamps are distributed on at least one side of the upstream or the downstream of a mounting rod, a vertical rod pressurizing spraying pipe is arranged on the mounting rod through the fixing clamps, spraying heads are distributed on the vertical rod pressurizing spraying pipe, a water inlet hose is connected with the vertical rod pressurizing spraying pipe, and a water outlet hose is connected with the vertical rod pressurizing spraying pipe. And the mounting rod is connected with the vertical rod pressurizing spray pipe. The spraying mechanism is driven by a self-cleaning track mechanism, vertical rod pressurizing spraying arrangement is adopted, the vertical rod pressurizing spraying arrangement is beneficial to being matched with a horizontal track distribution mode, so that the track arrangement is beneficial to being optimized, the effect of gravity can be fully utilized through the arrangement of the vertical rod pressurizing spraying mechanism, the spraying pressure of a spraying head is increased, and the running cost of equipment is reduced; by optimizing the arrangement of the spraying head, effective cleaning of the cleaning part is achieved, full coverage of the cleaning part is guaranteed, no dead angle is left, and meanwhile the energy-saving and water-saving effects are achieved; under the control that the PLC is matched with the three-way valve and the booster pump, spraying cleaning with the water pressure and the water quantity adjusted is achieved.

The utility model relates to the field of dangerous chemical article fire safety, concretely relates to a dangerous chemical article storage area intelligent fire extinguishing device, including fire control connecting pipe, as the main support structure of device, the outside of fire control connecting pipe is fixed from left to right and installed with catalytic combustion formula sensor, electrochemical sensor, photoionization sensor, double wave band infrared flame detector and laser smoke sensor in proper order. Through a variety of sensors to the dangerous chemical article storage area monitoring, the fire extinguishing agent is shunted to multiple groups of oblique flow guide strips through conical support disc, and the flow guide strip is close to the inner wall of shell and guides the fire extinguishing agent to form spiral, enhances the injection pressure, and is evenly distributed to each spray head through the multichannel connector, makes the spray head rotate, ensures that the fire extinguishing agent covers no dead angle, the shell and the sensor synergistic effect, and the pressure is different and opens different passages, both adapts to different fire degree, and also avoids the traditional fixed passage because of the flow matching imbalance and leads to the problem that the fire is not completely extinguished or medium is wasted, and the fire extinguishing efficiency and resource optimization are considered.

The invention relates to the technical field of fire extinguishing, in particular to a split handheld fire extinguisher which comprises a main tank body, an injection pressure handle, a spray pipe and a spray nozzle, the upper end and the lower end of the main tank body are provided with lateral mounting seats protruding outwards, and the injection pressure handle is mounted on the lateral mounting seat at the upper end of the main tank body. According to the split handheld fire extinguisher, the main tank body and the injection pressure handle are of a split structure and can be quickly separated and replaced after being used, so that the cyclic utilization rate of the fire extinguisher is increased, and the recovery and use cost is reduced; the split type centrifugal booster pump is fixedly mounted on the lateral mounting seat at the lower end of the main tank body, so that a lateral hanging type flow guide pipe on the outer wall of the main tank body is communicated with an air outlet of the split type centrifugal booster pump, the injection pressure is increased through bottom pressurization, and internal fire extinguishing raw materials can be completely used in a bottom opening manner; the resource utilization rate is improved.

The application belongs to the technical field of plate-fin heat exchanger, and discloses a variable-spacing plate-fin energy-saving heat exchanger, which comprises a plurality of heat exchange boxes arranged between two pressing plates, a pipeline one and a pipeline two for supplying cooled medium and cooling medium respectively, the heat exchange box comprises a plurality of plate fins arranged at equal intervals in the interior, and further comprises an outer shell spliced by a cover plate, a channel steel edge and a bottom plate, both ends of the plate fin are provided with end sealing plates, and the end sealing plates of two adjacent plate fins are staggered and connected to form a closed rectangular water channel. The plate fin can slide horizontally in the heat exchange box, both ends of the graphite sealing strip are provided with end sealing plates which are staggered and connected to form a closed water channel when sliding horizontally. When the cooling power of the heat exchanger in the cooling system is improved, the injection pressure of the pipeline one is increased, and the rectangular water channel is expanded to the two sides due to the medium pressure to widen the water channel.