43results about How to "Tightly sealed connection" patented technology

The invention provides a transmission dual-H control mechanism with obvious hand feel of high-low gear shifting. The transmission dual-H control mechanism comprises a control shell, a transverse shift lever, a shift head and a gear selecting hand feel control block, wherein the transverse shift lever, the shift head and the gear selecting hand feel control block are arranged in the control shell. One end of the transverse shift lever is a gear shifting input end, and the other end of the transverse shift lever is connected with a high-low gear shifting and return balancing device. The shift head is fixed to the transverse shift lever, and a gear selecting lever and a dual-H valve are arranged on the positions, corresponding to the matching position of the shift head, of the control shell respectively. The gear selecting hand feel control block is fixed to the transverse shift lever, and the control shell is provided with the hand feel pin matched with the surface of the gear selecting hand feel control block. The hand feel pin is connected to the control shell through a spring. The contact face of the gear selecting hand feel control block and the hand feel pin is provided with working surfaces corresponding to gear selecting operation in sequence, the working surfaces corresponding to selecting from low gears to a rear gear are inclined planes extending outwards in the axial direction, and the working surfaces corresponding to selecting from high gears or a neutral gear to high gears are provided with outward protrusions. When the hand feel pin makes contact with the inclined planes or the protrusions, the spring is compressed.

The invention belongs to the technical field of articles for daily use, and particularly relates to a leakage-proof disposable plastic lunch box which comprises a box body, a box cover and a sealing component. A first flange is arranged on the upper end edge of the box body, a second flange is arranged on the edge of the box cover, and the exteriors of the second flange and the first flange are surrounded by the sealing component. According to the leakage-proof disposable plastic lunch box, the cross section of the sealing component is arranged to be in the rectangular notch shape, the first flange on the box body and the second flange on the box cover are extruded and attached together through the rectangular notch shape of the sealing component, then sealing between the box body and thebox cover can be achieved, the disposable plastic lunch box can well prevent internal food from spilling and leaking, and the use requirements of users are met; when the box cover is opened, only thehead and the tail of the sealing component need to be disconnected firstly, then the box cover is opened, in the process, the box cover is not bent or deformed, the problem that food juice on the boxcover is ejected out is avoided, and therefore a user can use the box more conveniently and better.

The invention discloses a multilayer inspection well and a manufacturing method thereof. The inspection well comprises multiple layers of well shafts, multiple layers of well bases, and a well lid, wherein the well base in each layer comprises a cylindrical base part, well shaft connectors which extend from the upper and lower ends of the base part, and at least one transversely formed pipeline connector; at least one ends of the well shafts are in fusion welding with the well shaft connectors in a thermoplastic manner; and the upper end of the well shaft in the topmost layer is connected with the well lid. When the multilayer inspection well is utilized, pipelines which are embedded in different underground vertical positions and have various different functions can be monitored at the same time in one inspection well; the well shafts and the well bases are in sealed connection, so that the inspection well is more stable; and when the well shafts and the well bases are connected and when the ground subsides due to overload or underground tunnels subside due to various reasons, the well shafts of the inspection well can have certain elastic deformation due to the fact that the well shafts have certain elasticity, so that connection of the pipeline connectors of the inspection well and the original pipelines remains stable, sealing performance is good, and the inspection well is not liable to damage.

The invention discloses a corrugated pipe service life test device, and belongs to the technical field of vacuum arc extinguish chamber tests. The corrugated pipe service life test device comprises a supporting assembly and a movable part, the movable part can reciprocate in the vertical direction relative to the supporting assembly, sealing inflation assemblies on the supporting assembly and sealing fixing assemblies on the movable part are arranged in a one-to-one correspondence mode, and the sealing inflation assemblies and the sealing fixing assemblies are configured to be connected with the two ends of a corrugated pipe in a sealed mode and fill gas with the set pressure into the corrugated pipes, the real working condition is simulated, at least two corrugated pipes can be tested, and the detection efficiency is improved.

The invention relates to a pipe connection structure with locking strips. Two pipes are sealed by a connecting sleeve and a sealing ring. The outer circumference of the pipe to be connected is grooved, and the inner circumference of the connecting sleeve is provided with an inner ring groove corresponding to it. The outer periphery is provided with a lock hole communicating with the groove of the inner ring, and there is a lock bar between the groove of the inner ring and the groove of the outer ring. The connection structure realizes the mutual positioning between the two pipes through the cooperation of the lock hole, the lock bar, the outer ring groove and the inner ring groove, so that the two pipes can be connected firmly, the shape of the connecting sleeve is greatly reduced, and the shape is simple and beautiful, and the consumables are less. There is no need for bolts and screw holes, which greatly reduces the cost. The disassembly and assembly are simple and fast. You only need to insert or pull out the locking bar to disassemble and assemble without any tools. The structure is very simple, suitable for various pipe connections, and is not limited by the installation environment , long service life, can withstand any high pressure.

The invention relates to a disposable meal box which comprises a box body, a partition plate and a cover body. The box body is provided with a containing cavity, and at least one annular groove is formed in the inner wall of the containing cavity in the circumferential direction of the containing cavity. The peripheral edge of the partition plate can be embedded in the annular groove; a plurality of through holes are formed in the partition plate; the cover body is arranged above the box body, and the cover body is connected with the box body in a sealed mode. According to the disposable meal box disclosed by the invention, by arranging the partition plate, soup can be firstly placed in the box body, then the partition plate is embedded in the annular groove, flour is further placed on the partition plate, and the cover body is covered to finish packaging; when the noodles need to be eaten, a user directly inverts the meal box, so that the noodles fall into the inner space of the cover body, soup flows into the cover body through the through holes of the partition plate, the soup and the noodles are mixed, the user can eat the noodles by opening the box body, the cover body does not need to be opened in the whole process, and the process of putting the noodles into the soup can be avoided; the situation that soup splashes out of the meal box and splashes onto a dining table is avoided, and meanwhile the situation that the soup splashes onto the hands is avoided.

The invention relates to a diaphragm air pressure tank with a joint seal structure. The diaphragm air pressure tank comprises a tank body, an inner container and annular plates, wherein flange platesare arranged at two ends of the tank body, a pair of parallel fixed rings are arranged on the inner wall of the tank body, pressure guide holes are formed in the fixed rings along the axes of the fixed rings seal rings are fixed on the inner circumferences of the fixed rings, and a pair of sliding rings moving oppositely or reversely are coaxially arranged between the fixed rings, the out circumferences and inner circumferences of the sliding rings are in sliding fit with the inner wall of the tank body and the seal rings respectively, and return springs are arranged between the sliding rings;through holes are formed in the circumference of an extension part at intervals; communication pipes are arranged in the circumference between the tank body and the flange plates at intervals; and pull wires penetrating through the communication pipes, the through holes and the pressure guide holes are arranged between the sliding rings and the annular plates. The tank has the effects that increase or decrease of air pressure in the tank body is controlled, extrusion and loosening between the annular plates and flange are achieved, and stable sealed connection of the inner container to the tank body is further achieved.

The invention discloses a cooling water atomization device for a powerful cooler, which comprises an annular pipe sheathed in a feeding pipe of the powerful cooler. In the present invention, the inner hole and the connection hole are correspondingly provided in the annular pipe and the feeding pipe of the powerful cooling machine, so that the nozzle integrally connected with the annular pipe is firmly sleeved in the feeding pipe of the powerful cooling machine; The corresponding outer hole is opened to facilitate the fixed connection of the cooling water pipe on the ring pipe; the side hole opened in the middle of the cooling water pipe is used to realize the sealed connection between the compressed air pipe and the cooling water pipe, and the air in the compressed air pipe is controlled by a ball valve to control the water in the cooling water pipe. Pressurize to make the water in the cooling water pipe fully atomized; the atomized water and compressed air in the cooling water pipe can be evenly injected into the feeding pipe of the powerful cooler, so as to cool the paste evenly and avoid Uneven temperature causes cracks in the carbon block, thereby reducing waste and realizing cost savings.

The invention discloses a cable sealing connector used for a ship in a deep water environment. The cable sealing connector comprises a sleeve, a pressing nut, a pressing ring, a sealing ring and a separating disc. The first end of the sleeve is provided with a flange used for connection, the second end of the sleeve is in threaded connection with the pressing nut, the middle section of the sleeve is a small-diameter through hole, the section, close to the first end, of the sleeve is a first large-diameter through hole, the section, close the second end, of the sleeve is a second large-diameter through hole, the pressing ring and the sealing ring are arranged in the second large-diameter through hole and are sequentially located on the inner side of the pressing nut, the separating disc is arranged in the small-diameter through hole, the diameter of the pressing nut, the diameter of the pressing ring, the diameter of the sealing ring and the diameter of the small-diameter through hole are the same and are slightly larger than the outside diameter of a cable used for the ship, and the separating disc is provided with a plurality of through holes which wires penetrate through. According to the cable sealing connector, the structure integrating the sleeve, the pressing nut, the pressing ring and the sealing ring is adopted, a connector of the cable for the ship is sealed so that the connector can bear large enough water pressure, and on the condition that the water pressure is not higher than 20 MPa, it is guaranteed that cables used for the ship and mutually connected are stably sealed and connected.

The invention relates to a fuel supply device in the form of a common rail injection system, which comprises at least one accumulating chamber in an accumulator unit, which can be sealed by at least one end surface by an accumulator cover, wherein all functional units are integrated in the accumulator cover in consideration of the supply and the guide of fuel. In order to be accessible to each functional unit and keep the advantages that the attenuation of the amplitude pressure applied on the functional units of the accumulator cover, specifically a two-position three-port valve and a pressure pipe, the invention provides that the accumulator cover consists of two modules in a form of a sealing element and a control unit, so that the sealing element is hermetically connected with the accumulator unit, and the control unit can be located optionally in the pressure pipe between the sealing element and a fuel injector for supplying fuel.

The invention discloses a gas pipe flexible connection valve with multiple seals. The valve comprises a gas pipe valve, a locking mechanism, a rotating shaft and a valve rod, the gas pipe valve consists of a valve body, a ball valve, a gas circulating cavity, a gas guide pipe, a multi-sealing mechanism and a closing mechanism, the gas pipe valve enables sealing connection between the gas pipe andthe gas guide pipe to be tighter through the multi-sealing mechanism, then the gas pipe and the gas guide pipe are installed and locked through the closing mechanism, and the installation effect on the gas pipe valve is improved. The closing mechanism conducts secondary gas sealing on the gas pipe through a sealing strip, and gas leakage is avoided. The locking mechanism can be used for limiting the valve rod when the valve rod closes fuel gas, and avoids the situation that the ball valve is opened when the valve rod is accidentally impacted, and consequently the fuel gas leaks out of the gascirculating cavity.

The invention relates to an electric heating device having a housing, comprising a housing (2) having a partition wall (12) which separates a connection chamber (8) from a heating chamber (10) for dissipating heat, and from which partition wall (12) at least one heating element housing (18) protrudes in the direction of the heating chamber (10), wherein at least one PTC element (20) and a bar conductor (22) are supported in an electrically insulating manner in the heating assembly housing (18), the bar conductor (22) is connected to the PTC element (20) in an electrically conductive manner in order to excite the PTC element (20) with different polarities, and the bar conductor (22) is electrically connected in the connection chamber (8). A compact electric heating device is achieved in which a housing wall (16), which protrudes from the partition wall (12) and delimits the connection chamber (8) and / or the heating chamber (10) and / or the heating assembly housing (18), is connected to the partition wall (12) by means of material bonding, in particular by means of induction brazing.

The invention discloses a moisture-proof plastic packaging box for a hardware tool, and relates to the technical field of packaging products. The moisture-proof plastic packaging box comprises an upper shell and a lower shell, and the middle part of the lower shell is provided with a plurality of storage units; the moisture-proof plastic packaging box further comprises a sealing connector comprising an upper sealing strip and a lower sealing strip, and the lower end of the upper sealing strip is provided with a first connecting part; the upper end of the lower sealing strip is provided with asecond connecting part correspondingly, and the shape formed by butt joint of the upper sealing strip and the lower sealing strip is matched with the packaging box; and the opposite sides of the uppersealing strip and the lower sealing strip are each provided with a slot, and the upper shell and the lower shell are clamped into the slot after butt joint so that the connection of the upper shell with the lower shell is achieved. The invention further discloses a preparation method of the moisture-proof plastic packaging box for the hardware tool. According to the moisture-proof plastic packaging box, the moisture resistance of the packaging box is improved, and the performance of the hardware tool is ensured; and meanwhile the degradation speed of the packaging box is increased greatly, and the moisture-proof plastic packaging box is more environmentally friendly.

The invention belongs to the technical field of electrical plugs, and specifically relates to a wiring-type sealing plug for a pump, which includes a plug body and a wire nut; the end of the wire nut far away from the plug body is fixedly connected to a connecting pipe; the inner wall of the connecting pipe is fixedly connected to There is a sealing layer; the inner wall of the wire nut is provided with a No. 1 groove; the No. 1 groove is close to the connecting pipe; the inside of the No. 1 groove is provided with a No. 1 slider, a clamping block and a spring; The end away from the plug body is fixedly connected with a connecting pipe, and then cooperates with the clamping block on the inner wall of the wire nut, so that the wire nut can fix the wires of different diameters and ensure the sealing effect of the wires, and then realize different diameters. All wires can achieve stable and sealed connection at the terminal nut, which improves the application range of the pump wiring type sealing plug, and can ensure the connection stability of the pump wiring type sealing plug when using wires of different diameters.

An aluminum alloy window frame sealing connection structure solves the problem of rainwater leakage caused by insufficient filling of the gap between the aluminum alloy window frame and the opening wall. It includes an aluminum alloy window frame and a stone panel fixed on the wall of the hole. The frame and the hole wall are sealed and connected with a waterproof rubber plate. After one end of the waterproof rubber plate is connected and fixed with the aluminum alloy window frame frame by stainless steel screws, it is sealed with the stone panel by a sealing material. The other end of the waterproof rubber plate is connected to the hole. The wall is connected and fixed by nailing, the gap between the bottom of the waterproof rubber plate and the wall of the hole is sealed with sealant, and the gap between the waterproof rubber plate and the steel sub-frame is filled with thermal insulation material. Its structural design is reasonable to ensure that the gap is filled full and dense without cracks, and the sealing connection is reliable, which can effectively prevent rainwater leakage and improve the airtightness and thermal insulation performance of aluminum alloy windows.

The invention discloses a steel-plastic composite pipe connector and a method thereof. The steel-plastic composite pipe connector comprises a connecting head body and a connecting pressing set. The two ends of the connecting head body are provided with conical connectors, wherein a steel-plastic composite pipe head can be sleeved with the conical connectors in an inserted manner. First connecting flanges are arranged at the positions, on the inner sides of the conical connectors, on the connecting head body. Multiple L-shaped grooves are formed in the included angle faces of the outer side faces of the first connecting flanges and the connecting head body in a surrounding manner. L-shaped tensioning blocks are arranged in the L-shaped grooves. The connecting pressing set comprises second connecting flanges and pressing sleeves. The pressing sleeves are also in a cone shape, and the second connecting flanges are arranged at the large-head ends of the pressing sleeves. The connecting pressing set can be used for clamping and sealing the steel-plastic composite pipe head by being arranged on the conical connectors in a sleeving manner, and the second connecting flanges and the first connecting flanges are matched and are firmly connected through bolts. The problems that a relatively thick steel-plastic composite pipe connector is not firm in connection, and a pipeline and the connector are likely to be disengaged or water leakage and gas leakage are likely to happen are solved.

The invention discloses a multilayer inspection well and a manufacturing method thereof. The inspection well comprises multiple layers of well shafts, multiple layers of well bases, and a well lid, wherein the well base in each layer comprises a cylindrical base part, well shaft connectors which extend from the upper and lower ends of the base part, and at least one transversely formed pipeline connector; at least one ends of the well shafts are in fusion welding with the well shaft connectors in a thermoplastic manner; and the upper end of the well shaft in the topmost layer is connected with the well lid. When the multilayer inspection well is utilized, pipelines which are embedded in different underground vertical positions and have various different functions can be monitored at the same time in one inspection well; the well shafts and the well bases are in sealed connection, so that the inspection well is more stable; and when the well shafts and the well bases are connected and when the ground subsides due to overload or underground tunnels subside due to various reasons, the well shafts of the inspection well can have certain elastic deformation due to the fact that the well shafts have certain elasticity, so that connection of the pipeline connectors of the inspection well and the original pipelines remains stable, sealing performance is good, and the inspection well is not liable to damage.