45results about How to "Block communication" patented technology

The invention relates to a method for improving neighbor discovery safety in IPv6 (internet protocol version 6) environment and broadband access equipment. When carrying out duplicate address detection on a temporary IP (internet protocol) address, a user node transmits an adjacent node request message to the broadband access equipment to which the user node belongs and the adjacent node request message carries the temporary IP address and an MAC (media access control) address of the user node; and when receiving the adjacent node request message, the broadband access equipment returns an adjacent node notice message to the user node when judging that a record containing the temporary IP address exists in the adjacent list but the MAC address in the record is different from the MAC address in the adjacent node request message. The method can effectively prevent duplicate address detection on DoS (Disk Operating System) attacks, blocks the communication among nodes attacked by a DoS and avoids the communicating paralysis of the whole link.

The invention relates to an artificial lake bottom anti-seepage method based on a novel composite anti-seepage layer, wherein the method comprises the following steps: (1) making a lowermost layer bea plain soil compaction layer, wherein plain soil is undisturbed soil; (2) preparing the novel composite soil anti-seepage layer, paving the novel composite soil anti-seepage layer on the plain soil compaction layer, and performing mechanical compaction, wherein solid phase components for preparing the novel composite soil anti-seepage layer comprise dry clay, fly ash, river sand, stone powder anda small amount of industrial waste residues, and liquid phase components comprise a water plugging agent (polyacrylamide solution), a water glass solution, a calcium chloride solution and water; and(3) uniformly paving a planting soil covering layer on the novel composite soil anti-seepage layer. According to the method, a 'sandwich' anti-seepage method of the plain soil compaction layer, the novel composite soil anti-seepage layer and the planting soil covering layer is adopted; compared with a traditional method, construction operation is simpler, cost is lower, materials are more convenient to obtain, ecology is not destroyed, and the method has the advantages of being economical and environmentally friendly.

The invention discloses a T-shaped liquid labyrinth sealing element. The sealing element comprises a casing (1), a rotating shaft (2), a first T-shaped ring (31), a second T-shaped ring (41), an outer sealing component and an inner sealing component, wherein the inner sealing component and the outer sealing component are arranged in the casing (1) from inside to outside; a liquid labyrinth region is formed among the casing (1), the rotating shaft (2), the outer sealing component and the inner sealing component and is filled with a liquid sealant, so that sealant seals are formed by first sealing rings (32) and second sealing rings (42) which are adjacent. The T-shaped liquid labyrinth seal is simple in structure and good in sealing effect.

The invention discloses a novel tobacco filter which comprises a filter cartridge, wherein a fixing structure is arranged on the filter cartridge; the fixing structure comprises fixing rods arranged,in bilateral symmetry, on the rear side end surface of the filter cartridge; a plurality of groups of fixing holes are formed in the fixing rods longitudinally and equidistantly; a cavity and a filtertank at the bottom of the cavity are arranged in the filter cartridge; a smoke inlet pipe communicated with the cavity is arranged on the left end wall of the filter cartridge; a smoke outlet pipe communicated with the cavity is arranged on the right end wall of the filter cartridge; a support block is fixed at the middle of the top end surface of the filter cartridge; a spray device is arrangedin the top wall of the cavity; the spray device comprises a turntable which is rotatably mounted in the top wall of the cavity through a bearing, and a spray head mounted at the lower end of the turntable; a water storage tank is arranged in the turntable; the spray head is communicated with the water storage tank; a middle shaft is arranged at the middle of the top end of the turntable; the upperend of the middle shaft passes through the filter cartridge and the support block and extends upward; a first communication slot communicated with the water storage tank is arranged in the middle shaft.

The invention discloses a two-side sealing part which comprises a first form ring (31) and a second form ring (41). The first form ring (31) comprises first H-shaped rings (32) which are arranged on a shell (1) in pairs. The second form ring (41) comprises second H-shaped rings (42). The first H-shaped rings (32) are installed on the shell (1). The second H-shaped rings (42) are installed on a rotating shaft. The first H-shaped rings (32) and the second H-shaped rings (42) are alternately arranged in the axial direction of the rotating shaft. The two-side sealing part is simple in structure and good in sealing effect.

The invention discloses a tobacco filter, which comprises a filter cartridge, and a fixing structure is arranged on the filter cartridge, and the fixing structure includes fixing rods arranged symmetrically on the rear end surface of the filter cartridge on the left and right sides, and multiple sets of fixing rods are arranged longitudinally and equidistantly on the fixing rods. The filter cartridge is provided with a cavity and a filter pool located at the bottom of the cavity, the left end wall of the filter cartridge is provided with a smoke inlet pipe connected with the cavity, and the right end wall of the filter cartridge is provided with a smoke outlet pipe connected with the cavity. A supporting block is fixedly arranged in the middle of the top surface of the cylinder, and a spraying device is arranged in the top wall of the cavity, and the spraying device includes a turntable mounted rotatably in the top wall of the cavity through bearings and a spray head installed at the lower end of the turntable, and a spraying device is installed in the turntable. There is a water storage tank, the sprinkler head is connected with the water storage tank, an intermediate shaft is arranged in the middle of the top of the turntable, the upper end of the intermediate shaft passes through the filter cartridge and the support block and extends upward, and the intermediate shaft is provided with a first channel connected with the water storage tank even slot.

The invention discloses a stepped liquid labyrinth sealing element. The stepped liquid labyrinth sealing element comprises a shell (1), a rotary shaft (2), an F-shaped ring (31), a ring (41) in the shape like the Chinese character 'gan', an outer sealing assembly and an inner sealing assembly; the inner sealing assembly and the outer sealing assembly are arranged in the shell (1) from inside to outside; and a liquid labyrinth area is defined by the shell (1), the rotary shaft (2), the outer sealing assembly and the inner sealing assembly and filled with liquid sealant, so that glue sealing is formed between a first rotary blade surface (32) and a corresponding second blade surface (42) adjacent to the first rotary blade surface (32). The stepped liquid labyrinth sealing element is simple in structure and good in sealing effect.

The invention discloses a novel cooking fume purifying device comprising a purifying barrel. A containing bin and a purifying pool located at the bottom of the containing bin are arranged in the purifying barrel. A feeding pipe communicating with the containing bin is arranged on the left end wall of the purifying barrel, a discharging pipe communicating with the containing bin is arranged on theright end wall of the purifying barrel, and a fixed plate is fixedly arranged at the midpoint of the top end face of the purifying barrel. An atomizing device is arranged in the top wall of the containing bin and comprises a steering disc and spraying heads, wherein the steering disc is rotationally installed in the top wall of the containing bin through a bearing, and the spraying heads are installed at the lower end of the steering disc. A water pool is arranged in the steering disc, the spraying heads communicate with the water pool, a midpoint shaft is arranged at the midpoint of the top end of the steering disc, and the upper end of the midpoint shaft penetrates through the purifying barrel and the fixed plate and extends upwards. A first through groove communicating with the water pool is formed in the midpoint shaft, a water inlet pipe is installed in the first through groove, and a rotating linkage device for driving the steering disc to rotate is further installed on the top end face of the purifying barrel.

The invention discloses a triple eccentric sliding vane oil delivery pump, and relates to the field of oil pumps. The triple eccentric sliding vane oil delivery pump comprises a radial pump body 1, wherein two sets of partition plates 5 are arranged on a main shaft 2 in the pump body 1, the pump body 1 is divided into three pump chambers through the two sets of partition plates 5, and sealing structures are arranged between the partition plates 5 and the main shaft 2 so as to block liquid communication of the three pump chambers; and the triple eccentric sliding vane oil delivery pump further comprises three sets of oil suction and discharge pump cavities which are arranged in the three pump chambers correspondingly, and the three sets of oil suction and discharge pump cavities conduct oil suction and discharge work in the pump body 1. According to the design structure, the pump body is divided into the three pump chambers through the two sets of partition plates, the three sets of oil suction and discharge pump cavities are contained in the pump body to conduct oil suction and discharge work in the pump body, the three chambers share one pump body, the three coaxial pump cavities complete the oil suction and discharge work process at the same time, the volume efficiency of the pump is greatly improved, and the size of the pump is effectively reduced. Liquid communication of the three pump chambers is effectively blocked through the sealing structures, the radial jumping fault caused by the too long suspension point of the main shaft is avoided, the operation stability of the pump is improved, and sealing is firmer.

The present invention discloses an oil-added facial mask patch and a production method. The facial mask patch comprises squalane, a bearberry leaf extract, a radix cynanchi atrati extract, a sturgeoncaviar extract and a pancratium zeylanicum extract. According to the method, in the preparation process of a blended facial mask patch maintenance solution, oil ester squalane is added for emulsification preparation, so that the moisturizing and hydrating effects of the facial mask are improved. The time for the facial mask to be applied to the face in a moist state is prolonged, and the lubricating effect of the facial mask patch on the skin is strengthened, the skin is softer, water and oil are more balanced, the loss of skin moisture is effectively reduced. More importantly, the oily estersqualane can reduce resistance of the skin to the irritation caused by the external environment, improve the mildness of the facial mask patch, and reduce allergy rate to make the skin fuller and elastic.