30results about How to "Good oil leakage prevention effect" patented technology

The invention discloses a rang hood and cooker integrated machine comprising a machine body, as well as a range hood and a cooker which are arranged on the machine body, wherein the range hood comprises a lampblack absorbing device, a negative pressure generation device and a lampblack exhaust device which are sequentially connected; the lampblack absorbing device comprises an air guide pipe which is arranged on the rear side of a panel of the machine body and a positive pressure generation device which forms a lampblack enveloping surface together with the negative pressure generation device; the positive pressure generation device comprises a fan and a blow pipe connected with the fan; and the blow pipe is provided with a blowing port and arranged on the panel of the machine body, corresponding to the air guide pipe, so that the lampblack enveloping surface is formed between the blowing port and an air sucking port. The invention has the advantages of small size, uniform negative pressure area, high suction rate of lampblack, favorable oil leakage preventing performance, low noise and the like; in addition, the rang hood and cooker integrated machine can be used for thoroughly sucking and exhausting he lampblack and waste gas and separating the lampblack, improves the operation efficiency of the fan and prolongs the cleaning period and the service life of the complete machine.

The invention discloses a speed reducer shell, which comprises a box body and a cover body. The bottom part of the cover body is fastened to the top part of the box body in a covering way; a circle of first flange is arranged on the top part of the box body; a circle of second flange is arranged at a corresponding matched position of the bottom part of the cover body; a circle of groove is formed in the first flange; a circle of boss with the shape being matched with the groove is arranged on the second flange; and the cover body is connected with the groove in the first flange through the boss on the second flange in an inserting way. Compared with the prior art, according to the speed reducer shell provided by the invention, a shell structure is reasonably designed, the complexity of an oil circuit at a leakage part is increased, and a sealing gasket is coordinately used for effectively blocking lubricating oil in the groove, so that the oil leakage phenomenon of a bonding surface of the box body and the cover body is prevented, an oil leakage prevention effect is greatly improved, and the service life of a speed reducer is prolonged. Therefore, the speed reducer shell has a wide application prospect.

The invention relates to a chain wheel chamber casing of an engine. The upper portion of the chain wheel chamber casing is away from a concave cavity and faces to a first installation surface of a cylinder body and a cylinder cover of the engine, the lower portions on two sides of the chain wheel chamber casing face a second installation surface and a third installation surface of a flywheel casing respectively. A first sealing groove for placing a sealing member is formed in the first installation surface, a second sealing groove is arranged under the first sealing groove, a third sealing groove and a fourth sealing groove are arranged on the second installation surface and third installation surface respectively, and an included angle is formed between the second installation surface and the first installation surface and between the third installation surface and the first installation surface. By means of the technical scheme, sealing members can be well fixed in the sealing grooves, users only need to push a lower side installation surface toward the flywheel casing, installation in one step can be achieved, and many installation procedures are reduced.

The invention relates to an electronic cigarette. The electronic cigarette comprises an atomizer and a battery host, wherein the atomizer comprises a shell, a base, an atomizing core and a tar sealing piece, and the tar sealing piece is matched with a first tar guide hole of a tar storage cavity of the atomizer. When the tar sealing piece is in an initial state, the tar sealing piece blocks the first tar guide hole, and the atomizing core is separated from an atomizing cavity; namely, the atomizing core is not inserted into the atomizing cavity, and the atomizer cannot be used; and at the moment, even if pressure intensity changes in a high-temperature storage or transportation process, the situation that tobacco tar leaks out cannot be caused. When the atomizer needs to be used, the atomizing core is inserted into the atomizing cavity, the tar sealing piece can be pushed to move, and the first tar guide hole communicates with the atomizing core. The atomizing core and the atomizer are detachable, and after the atomizing core is damaged, the atomizing core can be detached and replaced with a new atomizing core; and when the atomizing core can be continuously used after the tobacco tar of the atomizer which is injected with tar in advance is used up, the atomizing core can be detached and then inserted into a new tobacco tar atomizer, so production resources and the use cost of a user can be saved.

The invention discloses a rang hood and cooker integrated machine comprising a machine body, as well as a range hood and a cooker which are arranged on the machine body, wherein the range hood comprises a lampblack absorbing device, a negative pressure generation device and a lampblack exhaust device which are sequentially connected; the lampblack absorbing device comprises an air guide pipe which is arranged on the rear side of a panel of the machine body and a positive pressure generation device which forms a lampblack enveloping surface together with the negative pressure generation device; the positive pressure generation device comprises a fan and a blow pipe connected with the fan; and the blow pipe is provided with a blowing port and arranged on the panel of the machine body, corresponding to the air guide pipe, so that the lampblack enveloping surface is formed between the blowing port and an air sucking port. The invention has the advantages of small size, uniform negative pressure area, high suction rate of lampblack, favorable oil leakage preventing performance, low noise and the like; in addition, the rang hood and cooker integrated machine can be used for thoroughly sucking and exhausting he lampblack and waste gas and separating the lampblack, improves the operation efficiency of the fan and prolongs the cleaning period and the service life of the complete machine.

The invention relates to an oil leak preventing device for an upwards curved needle mechanism. A columned upwards curved needle guiding body capable of being freely and rotationally inserted and kept on a circular hole formed on an upwards curved needle guiding component is formed with an upper communicating slotted hole and a lower communicating slotted hole orthogonal with a communicating hole for sliding and lifting of an upwards curved needle table, an oil seal ring elastically and glidingly contacting the outer peripheral face of the upwards curved needle table and provided with a labialpart for scraping lubricating oil is inserted in the upper communicating slotted hole, and an oil suction ring capable of sucking and keeping the scraped residual lubricating oil is inserted in the lower communicating slotted hole, therefore, the oil leak preventing device can reliably and favorably exert scraping function of the residual lubricating oil, can reliably prevent the scraped residuallubricating oil from being attached to the outer peripheral face of the upwards curved needle table again to disperse upwards, and can stably maintain the oil link preventing function for a long term.

The invention discloses a ventilation cap. The ventilation cap comprises a ventilation cap body, filter elements and a connecting part. The ventilation cap body is provided with a first vent hole which communicates an inner cavity of a device with the outside atmosphere. The connecting part is provided with a second vent hole which is a stepped hole. The two ends of the second vent hole are communicated with the first vent hole and the inner cavity of the device respectively. The two ends of the connecting part are used for being connected with the ventilation cap body and the device in a sealed mode respectively. The stepped hole is gradually tapered from top to bottom. The filter elements are mounted at the step of the stepped hole. Accordingly, according to the ventilation cap provided by the present invention, by arranging the connecting part provided with the filter elements, liquid in the device is effectively prevented from overflowing through the ventilation cap; thus, the oil leakproof performance of the ventilation cap is improved. The invention further discloses a speed reducer comprising the ventilation cap.

The invention relates to the technical field of environmental-friendly engineering equipment, in particular to an offshore oilfield leakage preventing device. The offshore oilfield leakage preventing device comprises an oil pumping pipe, a water inlet pipe, at least one leakage preventing outer cover and at least one leakage preventing outer cover fixing device. The oil pumping pipe and the water inlet pipe penetrate into an offshore oilfield. Each leakage preventing outer cover fixing device is fixedly connected with the seabed. The leakage preventing outer covers are fixedly connected with the leakage preventing outer cover fixing devices in a one-to-one corresponding mode. The oil pumping pipe and the water inlet pipe are arranged in the leakage preventing outer covers. The offshore oilfield leakage preventing device is simple in structure and capable of effectively preventing oil from being dispersed into the sea, seawater is prevented from being polluted by oil, the collecting rate of oil can be increased, and reliability is high.

The invention discloses an efficient powerful wire drawing speed reducer which comprises a reduction gearbox body, an input shaft, an intermediate shaft and an output shaft. The input shaft is rotationally supported through a conical roller bearing installed in a bearing installation hole. A bearing end cover of the conical roller bearing is fixedly installed at the bottom of the reduction gearbox body. The efficient powerful wire drawing speed reducer is characterized in that a movable ring is arranged on the upper end face of the conical roller bearing, a first gap seal is formed between the outer circle of the movable ring and the bearing installation hole, the bearing end cover is provided with a lengthened sleeve, six seal combinations and a ball bearing are arranged between an inner hole of the sleeve and the outer circle of the input shaft from top to bottom, the lower shaft end of the input shaft is rotationally supported through the ball bearing, a belt wheel is rotationally arranged on the outer circle of the sleeve through rolling bearings, the bottom of the belt wheel is provided with a transmission disc fixedly connected with the belt wheel, and the transmission disc is in key connection with the lower shaft end of the input shaft. By the adoption of the efficient powerful wire drawing speed reducer, design is optimized, transmission efficiency is high, anti-impact capacity is high, oil leakage and water accumulation are prevented, the vertical size is small, and the input part can bear large radial loads due to the adoption of an unloading mechanism.

The invention discloses an anti-oil-leakage gel pen refill which comprises an ink storage tube, the tail end of the ink storage tube is provided with an inner and outer attached interlayer type tail cover, the head end of the ink storage tube is provided with an inner and outer attached interlayer type connecting part, a pen point is arranged in the connecting part and comprises a metal head, and a ball is arranged on the inner wall of the tip end of the metal head. According to the gel pen refill, the tail cover and the connecting part when the interlayers are attached inside and outside are adopted, the opening positions of the two ends of the ink storage pipe can be sealed and protected in an inside and outside combined mode, the phenomenon that connecting gaps are generated at the opening positions of the two ends of the ink storage pipe is avoided as much as possible, and therefore ink in the ink storage pipe is prevented from leaking outwards; and the phenomenon of deterioration caused by long-time contact between the ink and air is avoided, so that the ink leakage prevention effect of the refill is greatly improved, and the service life of the refill is prolonged.

The invention relates to an integrative cooking utensils of lampblack absorber and cooker, comprising a cabinet body, a plurality of cylindrical sunken stove holes are formed in the panel of the body, a cooker is provided on the soleplate of the stove holes, major arc shaped air suction ports are arranged at the at the top of the wall of the stove holes, a handle hole in one side of the stove holes faces person, a gas suction port is covered in a gas collecting tank. The air inlet of a blower is set in the gas collecting tank. The walls of stove holes are connected with the top plate of gas collecting tank and the soleplate. The blower is connected with an exhaust pipe. The top surface of the gas collecting tank is attached with a blocking bar which shades the top surface and side plate of gas collecting tank. The invention is advantaged in good fuel-leaking resistance property.

A hydraulic tube for a vehicle may include a pipe having a pipe rib which may be formed integrally on and protrudes outward from a terminal end of the pipe, a connector fitted around the pipe such that the pipe extends through opposite ends of the connector, and a sealer fitted into a first end of the connector, a first end of the sealer being coupled with the terminal end of the pipe through coupling with the pipe rib, and a second end of the sealer being coupled with the first end of the connector.

The invention discloses an oil-leakage-proof electronic cigarette, which comprises a main body of the electronic cigarette, an oil storage bin arranged in the main body of the electronic cigarette, and a plurality of oil inlet holes connected with the oil storage bin; the inner wall of the oil storage bin covers There is a layer of sealing layer, and a plurality of first buffer cavities are formed in the sealing layer, and the first buffer cavities are connected through a plurality of oil leakage micropores, and the oil leakage micropores are arranged on the sealing layer; the center of the oil storage tank A buffer is provided, the sealing layer is connected to the buffer, the buffer is provided with a second buffer chamber, and gas is stored in the second buffer chamber, the buffer is provided with a drive assembly, the drive assembly is connected to the heating cover, and the oil inlet hole is inserted A connecting pipe, one end of the connecting pipe protrudes from the atomizer on the main body of the electronic cigarette, a refueling channel is arranged in the connecting pipe, and one end of the refueling channel is connected to the first buffer chamber. The invention is convenient for disassembly, replacement and maintenance; good sealing effect, good oil leakage prevention effect, difficult oil leakage, and reduced pollution; and can improve the subsequent taste of the e-liquid.

The invention provides a magnetic drive pump bearing box structure. The magnetic pump bearing box structure comprises a bearing box body, a first rolling bearing, an outer magnetic rotor, a second rolling bearing, a driving shaft and a driving shaft baffle. The first rolling bearing and the second rolling bearing are fixedly mounted at two ends of the bearing box body; the first rolling bearing and the second rolling bearing sleeve the driving shaft; a first horizontal oil return groove is formed in the bearing box body above the first rolling bearing, and a second horizontal oil return grooveis formed in the bearing box body below the first rolling bearing; a third horizontal oil return groove is formed in the bearing box body above the second rolling bearing, a fourth horizontal oil return groove is formed in the bearing box body below the second rolling bearing, one end of the driving shaft is sleeved with the outer magnetic rotor, an end of the outer magnetic rotor is sleeved withan inner ring of the first rolling bearing, and the outer magnetic rotor is fixedly installed on the driving shaft through a driving shaft baffle by means of a fastening screw. The bearing box structure provided by the invention can meet the requirement of stable driving of a current maximum load magnetic drive pump, an oil return structure is improved, and the oil leakage prevention capacity isgreatly improved.

The invention discloses a chain saw, which belongs to the technical field of logging and timber making tools, and is designed to solve the problems of easy oil leakage and the like in the existing structure. The chain saw of the present invention includes a motor, a guide plate, a chain, an oil tank, an oil pump and a magnetic drive; the motor drives the chain to move; the guide plate guides the movement of the chain; the oil pump includes a pump body and movable parts; the movable parts move relative to the pump body to realize the pumping of the oil pump Oil function; the oil pump is located in the oil tank; the magnetic driving part is arranged outside the oil tank; the magnetic driving part moves relative to the pump body through the magnetic driving movable part. The chainsaw of the present invention realizes the oil pumping work of the oil pump through magnetic drive, and there is no need to provide an opening for installing the driving mechanism of the oil pump on the oil tank. The case of oil leakage outside the fuel tank. The structural design is ingenious, the oil leakage prevention effect is good, and it is suitable for popularization and use.

The invention relates to an integrative cooking utensils of lampblack absorber and cooker, comprising a cabinet body, a plurality of cylindrical sunken stove holes are formed in the panel of the body, a cooker is provided on the soleplate of the stove holes, major arc shaped air suction ports are arranged at the at the top of the wall of the stove holes, a handle hole in one side of the stove holes faces person, a gas suction port is covered in a gas collecting tank. The air inlet of a blower is set in the gas collecting tank. The walls of stove holes are connected with the top plate of gas collecting tank and the soleplate. The blower is connected with an exhaust pipe. The walls of the stove holes are buckled with an annular convex edge on the soleplate. The walls of the stove holes are covered outside the convex edge, improving the fuel-leaking resistance property.

The invention provides an erasable ball-pen ink composite, comprising the following components in parts by weight: 10-40 parts of low boiling point organic solvent, 5-10 parts of intermediate boiling point organic solvent, 5-20 parts of plasticizer, 30-75 parts of elastomer resin, 10-30 parts of pigment and 0-2 parts of ink rheological agent. The erasable ball-pen ink composite can be used for solving the problems of discontinuous strokes, ink leakage at the joint of a pen point and an ink tube, and serious discontinuous strokes and pocking of ink after the a ball pen is placed for a long time in the prior art.