32results about How to "Avoid the risk of oil spills" patented technology

The invention provides a return airflow atomizer and an electronic cigarette. The return airflow atomizer comprises a sucker, a top external thread, a ventilating valve, a ventilating thread, a damping ring, an air guide pipe, a ventilating pipe, a bottom internal thread, springs and steel positioning balls, wherein the top external thread is connected with the ventilating thread; the springs are arranged in the top external thread; the steel positioning balls are arranged outside the springs; the ventilating valve is used for fixing the springs and the steel positioning balls; a plurality of ventilating holes are formed in the ventilating valve, and the ventilating valve sleeves the outer wall of the top external thread in a clamping manner; when rotating left and right by 360 degrees, the ventilating valve is positioned by the springs and the steel positioning balls; when the ventilating holes in the ventilating valve are communicated with air holes formed in the top external thread, airflow enters the ventilating thread. The electronic cigarette comprises the return airflow atomizer. Compared with the conventional atomizer in which the airflow enters from the bottom and leaves from the top, the return airflow atomizer disclosed by the invention is an atomizer which works by virtue of a top air inlet mode and a top air outlet mode under internal airflow circulation.

The present invention discloses a dynamic demonstration model of a petroleum drilling well control device. The dynamic demonstration model of the petroleum drilling well control device comprises a driller's console, a remote console, a throttle manifold control cabinet, and a liquid-gas separator, a throttle manifold, a blowout preventer stack and a kill manifold which are connected in order; the throttle manifold, the blowout preventer stack and the kill manifold are respectively installed at different interfaces of a drilling spool; the driller's console is connected with the remote console; the remote console is connected with the blowout preventer stack through a transparent pipeline, and the blowout preventer stack is internally provided with a light band G1; the throttle manifold control cabinet is connected with the throttle manifold; the three-position four-way air rotary valve and the two-position four-way slide valve of the driller's console are able to pass through the three-position four-way change valves of an air control remote console to control the switch of the blowout preventer stack; the lamp strip is arranged in the associated line of the remote console and the blowout preventer stack; and proximity switches are arranged in the three-position four-way change valves to control the switching of the lamp strip. The dynamic demonstration model of a petroleum drilling well control device is able to visually demonstrate the actual running condition of the device in different work states and improve the operation safety.

The invention belongs to the technical field of electronic cigarettes and discloses an oil leakage preventing structure of an oil cup and an electronic cigarette. The oil leakage preventing structure of the oil cup comprises an oil cup assembly and an atomizing core; the oil cup assembly comprises an oil cup body, a locating ring arranged at the opening end of the oil cup body and an oil seal arranged in the oil cup body; a first smoke channel is formed in the oil cup body, a first annular protrusion is arranged on the inner wall of the locating ring, and a check ring made of an elastic material is arranged on the first protrusion in a sleeving manner; a second protrusion matched with the first protrusion for limiting is arranged at one end of the oil seal, a second smoke channel extending into the first smoke channel is formed in the other end of the oil seal, and sealing arrangement between the first smoke channel and the second smoke channel is realized; the atomizing core is detachably connected with the oil seal. According to the oil leakage preventing structure of the oil cup and the electronic cigarette, smoking oil in the oil cup body is always in a sealed state in a moving process of the atomizing core and the oil seal; thus, the risk of oil leakage is effectively prevented.

The invention provides a turbocharger control method and device. The method comprises the steps that operating parameters of a supercharged engine are obtained; based on the operation parameters, whether the operation position point of the turbocharger is located in an oil leakage risk area of the oil leakage risk graph or not is determined; and if the operation position point of the turbochargeris located in the oil leakage risk area, pressure compensation is conducted on the turbocharger. According to the scheme, the oil leakage risk graph containing the oil leakage risk area is constructedin advance with the operating parameters as the coordinate axis, and the operating parameters of the supercharged engine are collected in the operating process of the supercharged engine. According to the operation parameters of the supercharged engine, whether the operation position point of the turbocharger is located in an oil leakage risk area or not is determined in combination with the oilleakage risk graph. If the operation position point is located in the oil leakage risk area, pressure compensation is conducted on the turbocharger, oil leakage of the turbocharger is prevented, and stable operation of the supercharged engine is guaranteed.

The invention provides an online detection device and method for faults in a transformer shell, wherein the device comprises a refrigeration sheet, a temperature difference power generation unit, a vibration sensor and an ultrasonic unvarnished transmission module; the refrigeration sheet is disposed at the outer side of the shell of a transformer, is used for reducing the temperature of the shell and forms a temperature difference with insulating oil in the transformer; the temperature difference power generation unit is mounted on the inner side of the shell of the transformer, is opposite to the refrigeration sheet in position and is used for generating and outputting temperature difference voltage; the vibration sensor is mounted in the transformer, is connected with the temperature difference power generation unit, supplies power through the temperature difference power generation unit, and is used for detecting the vibration condition in the transformer; and the ultrasonic unvarnished transmission module is used for sending the vibration condition in the transformer to a terminal outside the transformer. The device is simple in structure, the method is convenient to operate, external power supply is not needed, potential safety hazards of transformer operation are reduced, and online detection of faults in the transformer shell is achieved.

The invention discloses a novel one-way valve buffer structure, and belongs to the technical field of hydraulic valves. The lower end of a valve element hole of a valve body is an oil port P, and the upper end of the valve body valve element hole is a spring cavity; a screw plug is arranged at the end of the spring cavity, a valve element is arranged in the spring cavity in a sliding mode, and a spring is arranged between the valve element and the screw plug; the lower end of the valve element abuts against the inner wall of the valve element hole of the valve body in a matched mode; an axial conical oil channel is formed in the circumferential face of the lower end of the valve element, the sectional area of the conical oil channel is gradually reduced from top to bottom, and the upper portion of the conical oil channel communicates with the spring cavity through an oil through hole; an oil port A is formed in one side of the valve body and communicates with the valve element hole of the valve body, and the conical oil channel is opposite to the oil port A in the radial direction of the valve element hole of the valve body. An oil way is simple and compact in structure, easy to machine and operate and high in practicability, the impact force of opening of the one-way valve on the screw plug is reduced, the risk of oil leakage at the screw plug is eradicated, and the response speed of the one-way valve is not affected.

The invention discloses an integrated cooker. The integrated cooker comprises a shell, an oil fume channel is formed in the shell, and an oil fume suction port is formed in the shell and communicates with the oil fume channel; a flow guide box is arranged in the shell, the flow guide box is provided with a flow guide cavity, an oil fume inlet and an oil fume outlet, the flow guide cavity communicates with the oil fume inlet and the oil fume outlet, and the periphery of one end of the oil fume channel and the flow guide box are allocated to be suitable for guiding oil in the oil fume channel into the flow guide cavity; an air bellow assembly comprises an air bellow, the air bellow is detachably arranged in the shell, the air bellow is provided with an air cavity and an oil passing hole, the oil passing hole is communicated with the air cavity, the flow guide box is detachably connected with the air bellow, and an oil guide structure suitable for guiding oil into the air cavity is arranged at the periphery of the oil smoke outlet; and an oil collecting box is arranged in the shell and used for receiving the oil flowing out of the oil passing hole. According to the integrated cooker, due to the fact that the air bellow assembly is detachably connected with the flow guide box and the shell, the air bellow assembly is detachable, an oil way of the integrated cooker is reliable, the risk of oil leakage is avoided, and the flue structure of the integrated cooker is simplified.

The invention belongs to the technical field of sewing machines, and particularly relates to an oil-proof device for a sewing machine needle bar. The oil-proof device comprises the needle bar, a return oil storing device capable of collecting lubricating oil leaking between the needle bar and a needle bar lower bush is arranged on the needle bar, a return oil pipe is arranged at one side of the needle bar, the oil sucking end of the return oil pipe is located above the return oil storing device, and the return oil pipe is connected with the return oil device; in the vertical motion process, the needle bar drives the return oil storing device to move vertically, the return oil storing device moves to make contact with the oil sucking end of the return oil pipe, and the return oil pipe adsorbs lubricating oil in the return oil storing device through the return oil device and returns the oil. By means of oil return of the return oil pipe, the problem of leaked oil on the needle bar contaminates a sewing material is solved fundamentally, and the technical problem that fabric is contaminated due to lubricating oil leakage is avoided.

The embodiment of the invention relates to the technical field of power supply heat dissipation, and particularly discloses a power supply and electric equipment. The power supply comprises a high-voltage assembly; a low-voltage assembly; a water-cooling shell which comprises a water-cooling shell body and an extension part extending from the water-cooling shell body, wherein the water-cooling shell body wraps the high-voltage assembly, the extension part accommodates part of the low-pressure assembly, the water-cooling shell body is provided with a cooling channel penetrating through the water-cooling shell body, the cooling channel is arranged around the high-voltage assembly, and cooling liquid is injected into the cooling channel; and a potting layer which wraps the water-cooling shell body and the high-voltage assembly, wherein the potting layer is formed after the water-cooling shell body is subjected to high-pressure potting by a potting material and is solidified. By means of the mode, the power source can be cooled, and the oil leakage risk caused by oil cooling and the noise trouble caused by air cooling through a fan are avoided.

The invention discloses an air cylinder head and an engine, relating to the technical field of engines. The air cylinder head comprises a cylinder head matrix and a support seat which are integrally formed, wherein the support seat is located in the cylinder head matrix and forms a mold cavity with the cylinder head matrix; the cylinder head matrix comprises a first mounting surface and a second mounting surface, the first mounting surface is located at the top of the cylinder head matrix and is fixedly connected with an air cylinder cover, the second mounting surface is located at the bottomof the cylinder head matrix and is fixedly connected with an air cylinder body, and the first mounting surface is obliquely arranged relative to the second mounting surface to enable the cylinder headmatrix to form relatively high and low sides; and a perforated chain cavity is formed in the high side and is located between the cylinder head matrix and the support seat, and a sparking plug mounting hole is formed in the lower side, is located on one side, close to the second mounting surface, of the cylinder head matrix and is obliquely formed relative to the second mounting surface. The aircylinder head is reasonable in design and convenient to produce, manufacture and assemble, the production difficulty is greatly reduced, the production and assembling processes are simplified, and theproduction cost is lowered.

The invention relates to the field of hydraulic driving systems, in particular to a variable stiffness joint hydraulic driving system for an exoskeleton robot. The variable stiffness joint hydraulic driving system comprises a left leg variable stiffness joint driving system and a right leg variable stiffness joint driving system which are respectively used for driving a left leg and a right leg and have the same internal structure, wherein each driving system comprises a hydraulic power module and a joint driving module for assisting in driving a human body to walk. According to the variable stiffness joint hydraulic driving system, a distributed power source is adopted to replace a centralized hydraulic power source in an exoskeleton backpack, the oil leakage risk caused by more oil pipes and oil pipe joints of the centralized hydraulic power source is solved, the complexity of system control is reduced, meanwhile, the centralized hydraulic power source is decomposed into a distributed hydraulic power source, a common bearing backpack of a hydraulic drive type lower limb exoskeleton can be replaced, the backpack-free mode is achieved, and the overall structure is more concise.

The invention relates to the technical field of vertical stirring equipment driving devices, in particular to a vertical transmission structure which can reduce axial height, save space and solve the problem of oil leakage, a speed reducer is installed on a supporting seat, the bottom of the speed reducer is connected with a stirring shaft, and the vertical transmission structure is characterized in that the speed reducer comprises a speed reducer middle sleeve and a speed reducer shell; a speed reducer bearing is arranged between the speed reducer shell and the middle sleeve, a lower flange is connected to the bottom of the speed reducer shell, a stepped hole is formed in the middle of the upper end face of the lower flange, a lantern ring is arranged on the stepped face of the stepped hole, and a baffle ring is arranged on the inner side of the lantern ring. The stirring shaft penetrates through the stepped hole and is connected with the lower flange through a key; and an annular groove matched with the baffle ring is formed in the peripheral surface of the stirring shaft.