32results about How to "Timely closure" patented technology

The invention discloses a spittoon trash can with a sampling circuit. The spittoon trash can comprises a sputum bag, a box body, a box cover, a solar cell panel and a single chip microcomputer. The bottom of the sputum bag is connected to the bottom of the side wall of the box body through a shaft. A stepping motor is arranged on the shaft. The side wall of the sputum bag is fixed on the side wall of the box body. The end wall of the sputum bag is arc-shaped. The arc length of the end wall of the sputum bag is larger than the length of the side wall of the box body. The output end of the single chip microcomputer is connected with the stepping motor. The single chip microcomputer is arranged in the box cover. An approach switch is arranged on the side wall of the box body. An infrared sensor is arranged in the opening of the sputum bag. The approach switch and the infrared sensor are both connected to the input end of the single chip microcomputer. An amplifying circuit, the sampling circuit and a filter circuit are sequentially arranged between the approach switch and the single chip microcomputer. The sampling circuit comprises an operational amplifier A1, a diode D1, a slide rheostat R4, a capacitor C1, a capacitor C2 and a capacitor C3. The spittoon trash can realizes the purposes of storing sputum conveniently and protecting the environment.

A bilateral expanding excavation construction method for a middle pilot tunnel of a tunnel is provided. Section or excavation width of the middle pilot tunnel is generally not larger than that of a common double-line or double-lane tunnel; a step construction method is adopted, and the construction method is the same as that of a common double-line or double-lane tunnel; and the construction method is familiar to constructors, and the construction difficulty is avoided. A primary support section of the middle pilot tunnel can be expanded and excavated after being closed by at least 3 meters; if a side tunnel face is stable, and the problem of the operation height of manual installation of a steel frame and an anchor rod is solved, one-time excavation and support can be achieved, and the construction is more convenient; or otherwise, a side tunnel is excavated according to a two-step or three-step method. The primary support of the middle pilot tunnel can be timely closed; the primary support of the side tunnel and the primary support of the middle pilot tunnel can be completely connected in sequence, and various errors and deformation influences of surrounding rocks and the supportare left at an inverted arch part for treatment; and the construction progress is basically the same as that of the common double-line or double-lane tunnel.

The invention discloses a spittoon trash can with an amplifying circuit. The spittoon trash can comprises a sputum bag, a box body, a box cover, a solar cell panel and a single chip microcomputer. The bottom of the sputum bag is connected to the bottom of the side wall of the box body through a shaft. A stepping motor is arranged on the shaft. The side wall of the sputum bag is fixed on the side wall of the box body. The side wall of the sputum bag is made of flexible materials. The end wall of the sputum bag is arc-shaped. The arc length of the end wall of the sputum bag is larger than the length of the side wall of the box body. The solar panel is electrically connected with the single chip microcomputer. The output end of the single chip microcomputer is connected with a stepping motor. The single chip microcomputer is arranged in the box cover. An approach switch is arranged on the side wall of the box body. An infrared sensor is arranged in the opening of the sputum bag. The approach switch and the infrared sensor are both connected to the input end of the single chip microcomputer. The amplifying circuit, a sampling circuit and a filter circuit are sequentially arranged between the approach switch and the single chip microcomputer. The amplifying circuit comprises an operational amplifier A1and an audion T1. The spittoon trash can realizes the purposes of storing sputum conveniently and protecting the environment.

The invention discloses a spittoon trash can with an amplifying circuit. The spittoon trash can comprises a sputum pocket, a box body, a box cover, a solar cell panel and a single chip microcomputer. The bottom of the sputum pocket is connected to the bottom of the side wall of the box body through a shaft, a stepping motor is arranged on the shaft, the side wall of the sputum pocket is fixed on the side wall of the box body, the side wall of the sputum pocket is made of flexible materials, the end wall of the sputum pocket is in an arc shape, and the arc length of the end wall of the sputum pocket is larger than the length of the side wall of the box body. The solar cell panel is electrically connected with the single chip microcomputer, the output end of the single chip microcomputer is connected with the stepping motor, and the single chip microcomputer is arranged in the box cover. A proximity switch is arranged on the side wall of the box body, an infrared sensor is arranged at the opening position of the sputum pocket, the proximity switch and the infrared sensor are both connected to the input end of the single chip microcomputer, and the amplifying circuit, a sampling circuit and a filter circuit are sequentially in series connection between the proximity switch and the single chip microcomputer. The purposes of storing sputum conveniently and protecting the environment are convenient.

The invention discloses a fresh air ventilator provided with a by-pass door, and belongs to the technical field of fresh air ventilator equipment. A fresh air ventilator in the prior art is relativelylow in air exchange efficiency, is complex in structure and is complex to operate. The fresh air ventilator provided with the by-pass door comprises an air inlet tube, a filter assembly and a by-passair flue, wherein the filter assembly is mounted opposite to a tube opening of the air inlet tube; the by-pass air flue and the filter assembly are arranged side by side and communicate with the airinlet tube; the by-pass air flue is equipped with a cylindrical housing capable of sealing the by-pass air flue; and the cylindrical housing is connected with a motor. According to the fresh air ventilator disclosed by the invention, the cylindrical housing is arranged, and the motor controls rotation of the cylindrical housing, so that a by-pass channel can be timely opened or closed, outdoor airwith good quality can directly enter an air inlet, and a usage rate of the filter assembly can be reduced, and therefore, abrasion on the filter assembly is reduced, the service life of the filter assembly is effectively prolonged, and use cost is reduced.

The invention relates to an anti-leakage IH rice cooker production injection mold convenient to disassemble. The anti-leakage IH rice cooker production injection mold comprises a supporting bottom plate and an upper mold body, wherein a mounting mechanism is arranged in the supporting bottom plate; the left side and the right side of the supporting bottom plate are connected with threaded rods through motors; a lower mold body is fixed to the upper portion of a top block; the upper mold body is located on the inner side of a positioning connecting mechanism; the interior of the upper mold bodyis connected with an ejector rod through a second spring and a limiting block; an injection molding butt joint opening is fixed to the upper end of the upper mold body; and the upper end of the positioning connecting mechanism is connected with a moving plate through a fourth spring. Compared with the prior art, the anti-leakage IH rice cooker production injection mold convenient to disassemble has the beneficial effects that different molds of equipment can be replaced conveniently through the mounting mechanism and the positioning connecting mechanism, so that equipment production is diversified; and meanwhile, the equipment adopts various anti-leakage structures, so that the situations that the equipment leaks, raw material waste is caused, and the product yield decreases can be prevented.

The invention relates to the technical field of water drain valves and discloses a bi-directional water drain valve structure easy in adjustment of a flow. The bi-directional water drain valve structure easy in adjustment of the flow comprises a valve body, a sealing bolt in threaded connection with one side of the bottom of the valve body in a sleeved manner, a fixed sleeve and a second fixed sleeve; the fixed sleeve and the second fixed sleeve are fixedly connected to the interior of the valve body in the sleeved manner; a first sealing cover is in threaded connection to threads on the top of the fixed sleeve in the sleeved manner; an adjusting mechanism is fixedly connected to the interior of the first sealing cover in the sleeved manner; a filter screen is installed between the fixed sleeve and the second fixed sleeve in the sleeved manner; and the second fixed sleeve is movably provided with a lifting mechanism arranged on the inner side of the filter screen inside in the sleevedmanner. For the bi-directional water drain valve structure in adjustment of the flow, through matching use of the fixed sleeve, the second fixed sleeve, a filter screen and the second sealing cover, amemory alloy spring can be arranged at a lower position of the valve body; when hot water flows into the valve body, the memory alloy spring can be preferentially in contact with the hot water to jack up a spherical valve with thermal expansion; and the spherical valve and the water outlet hole are in contact sealing, and closing of the spherical valve is achieved in time.

The invention discloses an inflatable clean room for installing geographic information system (GIS) equipment, and relates to the technical field of electric equipment. The inflatable clean room comprises an inflatable bracket and room walls arranged on the inflatable bracket, wherein the inflatable bracket and the room walls enclose a dust isolation room. The light weight, small size, convenienttransportation, convenient use, time saving and labor saving of the clean room are realized through the inflatable bracket, the room walls and the like.

The invention discloses a mixing type extruder for refrigerator door seal machining. The mixing type extruder comprises an extrusion pipeline; a driving device is connected with one side of the extrusion pipeline; an extrusion port is formed in the other side of the extrusion pipeline; a feeding hopper is formed in the top of the side, close to the driving device, of the extrusion pipeline; a vertical first connection frame is arranged on the extrusion pipeline on one side of the feeding hopper; a vertical second connection frame is arranged at the top of one side, close to the extrusion port,of the extrusion pipeline; a fixed sleeve is mounted in the upper inner side of the second connection frame; and one end of the fixed sleeve is connected with a first limiting block. During the use,the mixing type extruder is convenient to close the extrusion port in time to prevent redundant mixed materials from being extruded, and convenient to clean the dust on the outer side of the extrusionport when the dust falls to the outer side of the extrusion port; and a protection cover is closed one the outer side of the extrusion port to play a dustproof role for the extrusion port, so that the using of the users is more facilitated.

The invention discloses a spittoon trash can with a filtering circuit. The spittoon trash can comprises a sputum bag, a box body, a box cover, a solar cell panel and a single-chip microcomputer, wherein the bottom of the sputum bag is connected to the bottom of the side wall of the box body through a shaft, a stepping motor is arranged on the shaft, the side wall of the sputum bag is fixed to the side wall of the box body, the end wall of the sputum bag is in the shape of an arc, the length of the arc of the end wall of the sputum bag is larger than the length of the side wall of the box body, the solar cell panel is electrically connected with the single-chip microcomputer, the output end of the single-chip microcomputer is connected the stepping motor, a proximity switch is arranged on the side wall of the box body, an infrared sensor is arranged on an opening of the sputum bag, both the proximity switch and the infrared sensor are connected to the input end of the single-chip microcomputer, an amplifying circuit, a sampling circuit and the filtering circuit are sequentially connected in series between the proximity switch and the single-chip microcomputer, and the filtering circuit comprises an operational amplifier A1, a capacitor C1, a capacitor C2 and a capacitor C3. Thus, sputum can be conveniently stored, and the environment can be protected.