183results about How to "Close tightly" patented technology

The invention relates to an air passage system of a respirator. The air passage system comprises an oxygen communicating pipeline, as well as a pressure reducing valve (REG1) and a proportional valve (PSOL1), which are communicated on the oxygen communicating pipeline in series; a high-pressure air communicating pipeline, as well as the pressure reducing valve (REG2) and the proportional valve (PSOL2), which are communicated on the high-pressure air communicating pipeline in series; a mixing cavity and a free respiration valve (SV) communicated with the mixing cavity; a main pipeline, as well as a flow sensor probe (FQ1) and a one-way valve (CV3), which are communicated on the main pipeline in series; and a control air source, wherein the input end of the control air source is communicated with the oxygen communicating pipeline through an air passage beside a one-way valve (CV4), the air passage beside a one-way valve (CV5) is communicated with the high-pressure air communicating pipeline, and the output end of the control air source is communicated with the air inlet end of a two-position three-way valve (SOV1); the air outlet end of the SOV1 is communicated with the control end of the free respiration valve (SV) and a proportional valve (PSOL3), and the exhaust end is communicated with outside atmosphere; and the other end of the PSOL3 is communicated with an air lock and the pneumatic control end of a Peep valve.

The invention relates to a vacuum cup capable of cooling and heating instantly, which is convenient in use, wherein air-cooling and air-heating speed of drinking water in the cup can be regulated in a stepless manner. The vacuum cup capable of cooling and heating instantly comprises a cup body and a cup cover, the cup body comprises an inner layer, a shell and a gap layer, the gap layer is arranged outside the inner layer and inside the shell, a bottom hole is arranged at the bottom of the cup body and is communicated with the bottom of the gap layer, an upper hole is arranged at a high position of the shell and is communicated with a high position of the gap layer, a ventilating notch or an air vent is arranged on a skirt, which is lower than the bottom hole, of the shell, the shell is provided with a concave bottom, the bottom hole is arranged on the concave bottom of the shell and provided with a bottom hole cover or a bottom hole switch, and the upper hole is provided with an upper hole switch. The vacuum cup can realize air cooling and air heating for the drinking water in the cup, the air-cooling or air-heating speed of the drinking water in the cup can be regulated in the stepless manner, the drinking water in the cup can be in water cooling or water heating rapidly, a thirsty person can drink the drinking water at the proper temperature rapidly, and furthermore, the vacuum cup can brew good tea and heat milk, and is convenient in use.

A gravel-filling or a bypass gravel-filling tool comprises a filling assembly (1) and an exterior assembly (2). The tool is characterized in that the exterior assembly (2) comprises a switch short section (4) and a lower joint (17), both of which are arranged below an outer short section (3) and connected in sequence; a positioning lock spring (5) mounted inside the switch short section (4) and a sealing short section (6) below the positioning lock spring (5); a connecting lock spring (7), a lock ring (8), a conversion inner body (13), a uniflux valve (14) and a limiting short section (16) are connected in sequence under the sealing short section (6); a bypass filling sliding bush (9) and a filling bush (11) are mounted in the annular space between the switch short section (4) and the conversion inner body (13); a positioning ring (15) is arranged between the switch short section (4) and the limiting short section (16), and the filling assembly (1) is arranged inside the exterior assembly (2). The tool adopts the converting and filling structure and has the following characteristics: the tool can prevent blocking, sticking and filling interruption, and can be widely used in the technology of filling an oil well with gravel after oil exploitation.

The invention relates to a locking mechanism for a door of a garbage container. The locking mechanism comprises a straight shaft; a first fixed transverse shaft and a second fixed transverse shaft are parallel with each other; the straight shaft is located between the first fixed transverse shaft and the second fixed transverse shaft; the first fixed transverse shaft is glidingly matched with two shifting sliding sleeves; each shifting sliding sleeve is provided with a shifting block; one end of each of two active connecting rods is hinged to the corresponding shifting sliding sleeve; the other end of each of the two active connecting rods is hinged to a connection block at one end of the straight shaft; the second fixed transverse shaft is glidingly matched with a compression spring and two latch hook sliding sleeves; the compression spring is located between the two latch hook sliding sleeves; each latch hook sliding sleeve is provided with a latch hook; one end of each of two passive connecting rods is hinged to the corresponding latch hook sliding sleeve, and the other end of each of the two passive connecting rods is hinged to a connection block at the other end of the straight shaft to form a link gear. By adopting the locking mechanism for the door, disclosed by the invention, the shifting blocks are connected with a driving mechanism on the outside of a container body, and therefore the shifting blocks are driven to slide to be locked and separated from locking pins of the door to form the passive locking mechanism.

The present invention relates to a filter device (1), in particular an oil filter, having a filter housing cover (2) which delimits a receiving chamber (5) and in which is arranged an annular filter element (6), having a housing (4) in which a dome (15) is arranged centrally and to which the filter housing cover (2) is screwed, having at least one intermediate piece (3) which is arranged between the filter housing cover (2) and the housing (4) when the filter housing cover (2) is screwed to the housing (4), having a housing-side inlet duct (7) which communicates with an untreated side of the annular filter element (6), and a housing-side outlet duct (8) which communicates with a clean side of the annular filter element (6), having a housing-side drainage duct (9) through which the receiving chamber (5) can be drained during the removal of the filter housing cover (2), having a closure device (11) which is arranged in the intermediate piece (3) so as to be rotatable about the filter axis (10) and which has a closure element (12) by means of which the drainage duct (9) can be closed off.

The invention discloses a flow channel switching micro-valve structure for a micro-fluidic chip and a switching control method thereof, and belongs to the field of microfluidics. The flow channel switching micro-valve structure for the micro-fluidic chip comprises the micro-fluidic chip and a switching micro-valve arranged in the micro-fluidic chip, wherein the switching micro-valve comprises a first valve cavity, a second valve cavity, a middle switching valve cavity and a switching ball valve, the switching ball valve is arranged in the middle switching valve cavity, and can enter the firstvalve cavity to block a first flow channel or enter the second valve cavity to block a second flow channel, the first valve cavity communicates with a first air inlet channel capable of blowing out the switching ball valve from the first valve cavity, and the second valve cavity communicates with a second air inlet channel capable of blowing out the switching ball valve from the second valve cavity. According to the provided novel mechanical type micro-valve structure, an air channel is used for blowing the switching ball valve arranged in the valve cavity to achieve rapid switching of the flow channels in the micro-fluidic chip, the structure is simple, machining and manufacturing are convenient, the manufacturing cost is low, moreover, the micro-valve switching action is stable and reliable, and the operation is simple and convenient.

The invention provides a self-holding solenoid valve and relates to a solenoid valve. The self-holding solenoid valve comprises a valve body, a valve element, a sliding connecting rod and an electromagnetic coil, wherein a connecting rod slide way, a piston slide way and a valve cavity are arranged in the valve body; a fluid outlet output is arranged on a wall body of the piston slide way and a fluid inlet input is arranged on a wall body of the valve cavity; the valve element is in a hollow piston structure; a through hole is formed in the side wall of the upper part of the piston structure; an upper sealing ring and a lower sealing ring are arranged on the outer side of the middle wall body of the piston structure and on the outer side of the lower part wall body of the piston structure; an iron magnet is arranged in the upper end body of the sliding connecting rod; the sliding connecting rod is connected with the upper end of the valve element; the valve element is arranged in the piston slide way; the sliding connecting rod stretches into the connecting rod slide way; an isobaric cavity is formed by a piston slide way space above the upper sealing ring; the valve cavity is communicated with the isobaric cavity by a fluid channel and a through hole in the valve element; the electromagnetic coil is mounted at the periphery of the wall body of the connecting rod slide way. According to the self-holding solenoid valve, valve switching-on/off operation can be smoothly carried out without overcoming the pressure of fluid; a valve seat is not arranged in the valve body so that the structure of the solenoid valve is simple.

A valve ball controlling device for a tap capable of timing, amount fixing and self-closing when water supply is cut off relates to a tap. The invention aims at resolving the problems that structure of control device of existing water-stopping self-closing tap is complex, sensibility is influenced, and incompletely closure of tap caused by stopped water, and water leakage after water is re-supplied. The upper portion of the main valve ball connecting rod of the invention is provided with a spring support shield, the main valve ball connecting rod between the spring support shield and the valve body is equipped with a support spring, a second bearing is arranged at the top end of the main valve ball connecting rod, the lower end of an auxiliary valve ball connecting rod is fixedly connected with upper end of an auxiliary valve ball, upper section of the auxiliary valve ball connecting rod passes through the valve body and is arranged in a cavity of a valve cover. The valve ball controlling device for a tap adapts to that the tap does not automatically close when running water stops after the tap is opened, the tap automatically stops when running water stops after the tap is opened, the water is timed and has fixed amount after the tap is opened, the tap automatically closes when time and amount are adequate and the tap automatically closes once water stops. The valve ball controlling device has the advantages of simple structure, high sensibility, and tight closure of tap when water supply is cut off.

The invention relates to a curtain device mounted on a shaft (2) about which said curtain (1) can be wound to an open position and unwound into a closed position, a drive wheel (7) fixed coaxially to said shaft (2) and cooperating with said curtain (1) such as to displace the latter between said two positions. The device comprises an oblong flexible control body (11), cooperating with the drive wheel (7), said body (11) being embodied to permit the displacement of the curtain (1) between the open position and the closed position thereof, independently of the slack formed in the curtain (1) and to be able to be displaced along at least one of the lateral edges (4) of the curtain (1) and act upon the region (8) of the latter as opposed to that arranged on the shaft (2).

The present invention relates to a filter device (1), particularly an oil filter, having a filter housing cover (2) bounding a receiving chamber (5), in which a ring filter element (6) is disposed, having a housing (4) in which a dome (15) is centrally disposed, and onto which the filter housing cover (2) can be threaded, having at least one intermediate piece (3) disposed on the filter housing cover (2) threaded onto the housing (4) between the filter housing cover (2) and the housing, having an inlet channel (7) on the housing side communicating with an unfiltered side of the ring filter element (6) and an outlet channel (8) on the housing side communicating with a clean side of the ring filter element (6), having an idler channel (9) on the housing side, through which the receiving chamber (5) can be emptied when the filter housing cover (2) is removed, having a closure device (11); rotatably disposed about the filter axis (10) comprising a closure element (12) by means of which the idler channel (9) can be closed off.

The invention belongs to the technical field of a prefabricated power transformation box structure and especially relates to a prefabricated power transformation box with an automatic opening and shutting door. The prefabricated power transformation box comprises a box body, a ventilating device, and the automatic opening and shutting door, wherein the automatic opening and shutting door comprises a first fixing part, a second fixing part, and a hydraulic rod; the hydraulic rod is sleeved with a hydraulic cylinder, one end of the hydraulic rod is in extensible connection with one end of the hydraulic cylinder, the other end of the hydraulic cylinder is provided with a first spherical connector which is moveably connected the inside of a door frame through the first fixing part, and the other end of the hydraulic rod is provided with a second spherical connector which is moveably hinged to the upper door beam of the automatic opening and shutting door leaf through the second fixing part. The prefabricated power transformation box is convenient to install, safe and reliable, and high in production efficiency.

The invention relates to a discharging device and application thereof, and particularly to a sealing type discharging device with a novel structure which is used to prevent air leakage of a kiln in the discharging process of a lime shaft kiln. The device comprises a discharging sprout door, a bearing and a box body, wherein the bearing is arranged outside the box body and separated from the box body by a separating seat provided with a dust discharging channel; a maze type sealing structure and a sealing ring are utilized between the separating seat of the box body and a rotating shaft; the contacting part between the discharging sprout door and the box body is provided with a sealing ring; and the device is arranged on a material receiving opening below a discharging machine of the lime shaft kiln to prevent the air leakage of the kiln, and has the advantages of having good sealing effect, discharging materials without stopping wind and having the action of stopping flow, along with simple structure, light weight and few easily-damaged parts.

The invention provides a piston-driven straight-through type pressure and flow regulating valve. The piston-driven straight-through type pressure and flow regulating valve comprises a main valve and apilot valve connected with the main valve, an outer shell and an inner shell of a valve body of the main valve are coaxially arranged, a valve cavity is formed between the outer shell and the inner shell, and a driving device is installed in the inner shell in a sliding mode in the axial direction; an end cover with a spherical structure is arranged on the side, facing a first port, of the innershell; and the inner walls of the two ends of the shell are each of an arc-shaped structure, the inner diameter of each arc-shaped structure is gradually reduced from inside to outside, long grooves are formed in the axial direction of a pup joint, and the outlet side pressure of the valve body is adjusted through the length of the long grooves in a pressure reduction opening-closing piece extending into the valve cavity. A pressure reducing valve provided by the straight-through type pressure and flow regulating valve has high distribution capacity, water flow energy counteracts each other atthe arc-shaped structure at the outlet of the valve body, cavitation and vibration can be effectively avoided, and due to the fact that the pressure reducing opening and closing piece is subjected tothe effect of control pressure of the guide valve, the valve has a pressure regulating function, water head loss is very small during opening and closing, and resistance is small during complete opening; and meanwhile, the valve is closed tightly and is good in sealing performance.

The invention belongs to the technical field of container door opening devices, and in particular relates to a complete side door opening device for a container which can be closed at an inclined selection point, comprising a cantilever mounting seat arranged on the container body, and a cantilever mounting seat is rotatably mounted on the cantilever mounting seat driven by a first driving mechanism. A cantilever, the end of the cantilever far away from the cantilever mounting seat is equipped with a rotating shaft mounting seat, and a rotating shaft driven by a second driving mechanism is rotatably installed on the rotating shaft mounting seat, and the rotating shaft is connected to the cover connecting seat, and the cover The connecting seat of the body is hingedly connected with a crank arm for connecting the cover, and the connecting seat of the cover is provided with a position-limiting structure that limits the movement range of the crank arm. The complete side door opening device for containers with inclined point selection and closure provided by the present invention can fully open the cover and place it behind the opening of the container body, providing enough space for automatic operation, which is conducive to improving production efficiency, and the cover is naturally inclined due to gravity Realize point-selected closing, tight closing, and less wear on the sealing ring.

The invention discloses a shoe cabinet with drying deodorizing functions. The shoe cabinet with drying deodorizing functions comprises a cabinet body; the back surface of the cabinet body is providedwith a drying deodorizing device; a heating chamber and a deodorizing chamber are arranged in a housing; a motor is arranged in the heating chamber; the motor is used for driving blades to rotate; theblades are used for driving air to flow, and cold wind is heated in passing by an electric heating wire; the heated air is introduced into a gas outlet through a first pipeline for drying of shoes inthe drying chamber; a gas pump is arranged in the deodorizing chamber; under the effect of a gas suction port and a second pipeline, the air in the drying chamber is sucked into the deodorizing chamber, is filtered using a graphene filter screen and an active carbon filter screen, and is discharged through a gas exhaust pipe, so that deodorizing effect is achieved. The beneficial effects are that: the shoe cabinet is simple in structure, can be used for drying shoes got wet in rainy days, and removing peculiar smell generated in drying process, ensuring the freshness of indoor air, promotingair circulation, and preventing bacteria breeding.

The invention provides an expansion member of a leak-proof water inlet pipe component. The expansion member has the advantages of quick response of a valve mechanism, tight cut-off and closing, low raw material cost and convenience in material taking. The expansion member comprises a central pressure pipeline, an external shell, a PVC (Polyvinyl Chloride) pressure hose and a corrugated pipe, wherein the central pressure pipeline is externally wrapped by the external shell and the PVC pressure hose; the junctions of the external shell and the PVC pressure hose are buckled and firmly connected through an aluminum sealing pipe; the corrugated pipe is sleeved on an outer annular surface of the PVC pressure hose; a fixing member is sleeved outside the external shell; one end of the fixing member is packaged in the outer annular surface of the corrugated pipe; a cavity is enclosed by the fixing member and the external shell; and an inner interlayer cavity of the corrugated pipe is communicated with the cavity.