121results about How to "Avoid cut-off" patented technology

The invention belongs to the technical field of underground pipeline construction and particularly relates to a trenchless pipeline renewal construction system and method. The trenchless pipeline renewal construction system and method are suitable for in-situ replacement of a pipe section in a trenchless construction process of an underground pipeline and achieve comprehensive renewal and upgrading of an old pipeline. According to the construction system, a starting well and a receiving well are arranged at the two ends of an underground existing pipeline section to be renewed correspondingly;a driving device is arranged between the starting well and the receiving well, the driving device conducts driving and cutting on a soil body around the existing pipeline, a sealing and communicationkeeping device is further arranged on a front end cutting face of the driving device, and the structure dimension of the sealing and communication keeping device is matched with the sectional dimension of the existing pipeline; and a pulling device is further arranged on the driving device. The trenchless pipeline renewal construction system and method achieve comprehensive renew and upgrading ofthe old pipeline, meet mutual replacement between underground pipelines of different diameters and achieve the capacity upgrading construction process of the existing pipeline.

The invention provides a lubricating oil filter for an aeroengine. The lubricating oil filter comprises a filtering assembly for being mounted in a lubricating oil filter mounting hole of the aeroengine and a sealing assembly for being mounted outside the lubricating oil filter mounting hole. The lubricating oil filter mounting hole is partitioned into an oil inlet chamber and an oil outlet chamber by the filtering assembly. The sealing assembly is spaced apart from the filtering assembly to form a bypass oil passage. A bypass assembly and a pressure difference signal assembly are arranged onthe sealing assembly. The bypass assembly utilizes the pressure difference change between the oil inlet chamber and the oil outlet chamber to control the bypass oil passage to be connected and disconnected. The pressure difference signal assembly utilizes the pressure difference change between the oil inlet chamber and the oil outlet chamber to give out an alarm signal for the filtering assembly blockage, and the trigger pressure difference of the pressure difference signal assembly is smaller than the trigger pressure difference of the bypass assembly. A temperature locking assembly is arranged on the pressure difference signal assembly. The temperature locking assembly utilizes the temperature change to control the operation of the pressure difference signal assembly. The temperature locking assembly controls the pressure difference signal assembly to stop working and prevents the pressure difference signal assembly from giving a false alarm when the aeroengine starts at the low temperature.

The invention discloses a pet water dispenser of circulating water. The water dispenser comprises a drinking water tray, a circulating water bucket, a drainage pipe and a standby water bucket, water flows to the drinking water tray through the circulating water bucket, overflows the drinking water tray, and flows back to the circulating water bucket to form a circulating water loop; the circulating water loop is provided with a water pump, a water purification device, and the standby water bucket is communicated with an inlet of the water pump through a water replenishing valve. After a pet drinks water in the circulating water bucket, the water replenishing valve is turned on, and water in the standby water bucket flows into the circulating water loop and is taken as a supplementary watersource; the smaller circulating water bucket and the bigger standby water bucket can be selected, the flow of water in the circulating water loop is smaller, and the smaller water pump can be selected so that water cannot be easily contaminated; the standby water bucket can make the circulating water bucket continuously supply water to avoid the phenomenon of flow cutoff; the pet water dispensercan continuously and stably provide clear circulating water in small flow for a long time, and the pet can conveniently drink water.

The invention discloses a link fault protection switching method and a device under an ECMP mode. The method comprises that: a flow hash value is obtained by a home terminal device via traversing a first flow hash list; the home terminal device sends a first CCM to an opposite terminal device via a corresponding path of the flow hash value; the opposite terminal device utilizes receiving situation of the first CCM to confirm whether a fault occurs in the corresponding path of the flow hash value; When the fault occurs in the corresponding path of the flow hash value, the home terminal device receives a second CCM from the opposite terminal device; the home terminal device deletes the corresponding flow hash value of a fault path from a second flow hash list; and the corresponding flow has value is matched in the second flow hash list by the home terminal device via utilizing information of a business message, and the business message is sent to the opposite terminal device via the corresponding path of the flow hash value. In the embodiment of the invention, fault shifting time is shortened, cutoff of flow is avoided and businesses are ensured not to be interrupted.

The invention discloses a service message processing method and a service message processing device. The method includes the following steps: after receiving a router request message coming from an IPoE (IP over Ethernet) client, a BRAS (broadband remote access server) obtains a routing prefix corresponding to the IPoE client, and sends a router notification message carrying the routing prefix to the IPoE client; the BRAS generates a temporary forwarding table entry corresponding to the IPoE client, and the temporary forwarding table entry includes forwarding information and the routing prefix which correspond to the IPoE client; after receiving a service message coming from the IPoE client, the BRAS obtains forwarding information and a source IPv6 address which correspond to the service message; if the source IPv6 address corresponding to the service message is matched with the routing prefix in the temporary forwarding table entry and the forwarding information corresponding to the service message is matched with the forwarding information in the temporary forwarding table entry, then the BRAS allows the forwarding of the service message. In the embodiment of the invention, IPoE clients can normally access a network.

The invention provides a battery pole piece (23) cutting method and device (20). The method comprises the following steps: determining a portion of a currently cut battery pole piece (23); according to a portion of the currently cut battery pole piece (23), adjusting the cutting parameters of a laser generator (21), such that the cutting parameters when the laser generator (21) cuts the tabs (31)are different from the cutting parameters when the laser generator (21) cuts the gap portion. The portion of the currently cut battery pole piece (23) is determined by the cutting device (20) of the battery pole piece (23), and the cutting parameters of the laser generator (21) are adjusted according to the position of the currently cut battery pole piece (23). The cutting parameters when the laser generator (21) cuts the tabs (31) are different from the cutting parameters when the laser generator (21) cuts the gap portion. The battery pole piece cutting method and device can avoid that the laser energy received by the unit length of the tab (31) shape is less than the laser energy received per unit length of the gap, resulting in the tabs (31) and the pole piece (23) cannot be cut off bylaser cutting, burrs are avoided, and the performance of the battery cells.

The invention relates to router equipment and a router updating method. The router equipment comprises a link state updating module, a link state deleting module, a route information computation module and a link state database. A route state updating module sends out a prune message after sending out a link state message with the maximum serial number to inform other router equipment on the network to delete the link state message with the maximum serial number, and sends out a link state message the serial number of which is 1 in the preset time after the prune message is sent out. The link state deleting module deletes the link state message with the maximum serial number of the router equipment sending out the prune message from the link state database when receiving the prune message from the network. The route information computation module calculates the route information according to the link state message received from the network and stores the link state message received from the network in the link state database. Cutoff possibly generated when the serial number of the message is overturned can be avoided according to the router equipment and method.

The invention discloses a VSF-based link fault detection method and a device. The method comprises the steps of receiving a heartbeat message sent by an opposite terminal from a port where link negotiation of a network device succeeds; acquiring destination port information of the heartbeat message, and setting the timeout duration of a port corresponding to the destination port information to bezero; traversing ports of the network equipment according to a first preset period, and determining whether the timeout duration of the ports exceeds a preset duration threshold; and if the timeout duration of the first port exceeds the preset duration threshold, determining a link fault corresponding to the first port. According to the method of the invention, rapid detection of the fault link can be realized without depending on an acknowledgement message, the process is simple, and the message interaction amount is reduced.

The invention discloses a media access control address determining method, device and system, which are applied to a system of a principal and subordinate structure comprising one or more network equipment. The media access control address determining method comprises the following steps of: when the system is started, judging whether configuration information of a main managing plate of the system contains a media access control MAC address or not; when determining that the configuration information of the main managing plate of the system contains the MAC address, judging whether a MAC address of a managing plate in all the managing plates of the system exists or not, which is the same as the MAC address of the configuration information; and when determining that the MAC address of the managing plate in all the managing plates of the system exists, which is the same as the MAC address of the configuration information, determining that the MAC address of the system is the MAC address in the configuration information. With the adoption of the media access control address determining method, device and system disclosed by the invention, the problems that the MAC address of the system is possibly changed due to the switching of the main managing plate in two times of starting so that the communication of the system is interrupted and the network is cut off can be solved.

The invention provides an enema type treatment system for the nephrology department. The system comprises a liquid control mechanism which comprises a liquid medicine storage bottle and a waste liquidcollection bottle, wherein the liquid medicine storage bottle is communicated with a liquid outlet pump, and the waste liquid collection bottle is communicated with a sucking pump; a liquid conveyingmechanism which comprises an inner liquid guide pipe and an outer liquid guide pipe, wherein the inner liquid guide pipe is communicated with the liquid outlet pump, and the outer liquid guide pipe is communicated with a sucking pump; a rectum imbedding mechanism which comprises a head shell,wherein a liquid outlet hole is formed in the small end of the head shell, a plurality of first liquid inlet holes are formed in the peripheral side wall of the head shell, an inner pipe spray head is fixedly arranged in the head shell, an outer pipe spray head is rotationally arranged between the head shell and the inner pipe spray head, and a plurality of second liquid inlet holes are formed in the outer pipe spray head; the inner liquid guide pipe is communicated and fixedly connected with the inner pipe spray head, and the outer liquid guide pipe is communicated with the outer pipe spray head. According to the enema type treatment system for the nephrology department. The enema type treatmentsystem can ensure that the enema treatment process is smoothly carried out.

The invention discloses a casting device and method for a precoated sand stacking type product. The casting device comprises a casting frame; the casting frame comprises a sprue cup, a straight pouring gate and a plurality of parallel casting layers; the sprue cup is arranged on the top of the casting frame; the straight pouring gate communicates with the sprue cup; at least a flow dividing transverse pouring gate located on the bottommost layer is included, and the flow dividing transverse pouring gate forms a flow guiding segment; during casting, the flow guiding segment is used for guidingcasting liquid at the bottommost layer to flow to an upper casting layer; the two sides of the flow guiding segment are correspondingly connected with the straight pouring gate and the transverse pouring gate; the transverse pouring gate forms the plurality of casting layers; each casting layer is provided with a plurality of inner sprues, and each inner sprue is connected with a to-be-cast casting; and the height of the casting frame is 800-1000 mm. The casting device makes casting start from the bottommost layer, the casting efficiency is improved, meanwhile, due to the casting manner, the flowing direction of molten iron is controllable, and cold insulating defects are reduced.

The invention provides a network fault handling method and provider edge routers (PEs). The network fault handling method comprises the following steps that: a first PE sends an MDT-Join (Multicast Distribution Tree-Join) message to a second PE within a preset range, and judges whether a first message sent by the second PE is received or not within a preset time, wherein the first message is a message sent by the second PE after a failure in creating a de-encapsulation table of the received MDT-Join message; and if so, the first PE stops switching from Default-MDT (Default-Multicast Distribution Tree) to Data-MDT (Data-Multicast Distribution Tree). Through adoption of the network fault handling method and the PEs, the problem of cutoff of customer multicast streams in the prior art can be solved.

The invention provides a message processing method and device, and the method is applied to first PE equipment, and comprises the steps: receiving a first EVPN route notification transmitted by secondPE equipment, and the first EVPN route notification comprises the address information of CE equipment, a first route mark, and a first Ethernet segment identification ESI value; when the first routing mark is the first value and a second ESI value the same as the first ESI value exists, sending a second EVPN routing announcement, the second EVPN routing announcement comprising address informationof the CE device and the second routing mark; wherein the second routing mark is marked as a second value, and the second routing mark is used for indicating that the address information of the CE equipment included in the second EVPN routing notification is the address information of non-local learning; wherein the ESI value is used for representing that the CE device accesses a link of the PE device.

The invention belongs to the technical field of biological sewage treatment and relates to a self-control intermittent water inlet subsection aeration treatment system for sewage treatment. An I-segment aeration region, a II-segment sediment region and a III-segment aeration region are arranged adjacent to one another. A water inlet pipe connected with a water inlet pump provided with a time relay I is arranged in the I-segment aeration region. An I-segment air hose and a III-segment air hose are arranged in the I-segment aeration region and the III-segment aeration region respectively, wherein the I-segment air hose and the III-segment air hose are connected with an I-segment air blower and a III-segment air blower in a butt-joint and sealed mode respectively. The I-segment air blower and the III-segment air blower are provided with a time relay II and a time relay III respectively. A return sludge pipe embedded in the I-segment aeration region is communicated with a II-segment mud discharge pipe and a III-segment mud discharge pipe in series, wherein the II-segment mud discharge pipe and the III-segment mud discharge pipe are embedded in the II-segment sediment region and the III-segment aeration region respectively. A sludge discharge pipe embedded outside the III-segment aeration region is communicated with the II-segment mud discharge pipe and the III-segment mud discharge pipe in parallel. A water outlet pipe is arranged in the III-segment aeration region. The system is reasonable in design, scientific in principle, compact in structure, small in occupied area and low in investment cost.

The invention discloses a vapor chamber and a manufacturing method thereof and electronic equipment, the vapor chamber comprises a shell, a capillary channel is formed in the shell, and the depth of the capillary channel is gradually reduced from the position close to a heat source to the position far away from the heat source, so that the backflow speed of a liquid working medium channel is increased, and the situation that the vapor chamber is close to the heat source and has a liquid fault is prevented; and the heat dissipation power of the vapor chamber is enhanced.

The invention belongs to the technical field of precise casting and relates to a casting method of a workpiece with a partition plate arranged in a thin long hole. The casting method comprises the steps of model treeing, coating, upper cushion sand filling, demoulding, cooling, pouring and the like. The special demoulding pretreatment solves the problem of cracking of a model shell, then the situation of run-out occurring in follow-up pouring is avoided, the method is easy to operate, additional design is avoided, the casting success rate can be increased, and then the cost is saved.

The invention provides a cable laying support, and belongs to the technical field of power equipment. The cable laying support comprises a support body, a sliding roller, clamping rings, a pressing plate, a spring and an adjusting assembly. The sliding roller is arranged on the support body in a rotatable mode; the two clamping rings are of U-shaped structures and are arranged on the two sides ofthe sliding roller, the closed ends are located in the support body, the free ends penetrate through the support body, and the closed ends of the two clamping rings enable a cable to be abutted to a side surface of the sliding roller; the pressing plate is arranged on one side of the support body and is connected with the free ends of the clamping rings; the spring sleeves the free ends of the clamping rings and is tightly pressed between the pressing plate and the support body; and the adjusting assembly is used for adjusting the distance between the pressing plate and the support body. According to the cable laying support provided by the invention, the cable penetrates through the two clamping rings; the clamping rings on the two sides of the sliding roller are adjusted through the adjusting assembly; the closed ends of the two clamping rings enable the cable to be abutted to the outer surface of the sliding roller; and during cable laying, the situations that a cable sheath is damaged and a steel armor is broken are avoided, and the integrity of the cable is guaranteed.

The invention discloses automatic water replenishing equipment for a steam boiler. The automatic water replenishing equipment comprises a boiler and a water replenishing tank; a water replenishing pipe communicates between the water replenishing tank and the boiler; one end of the water replenishing pipe is provided with a water pump and a cavity while the other end of the water replenishing pipeis provided with a spiral coil pipe; a sealing plate is movably clamped in the cavity; the sealing plate is provided with an adjusting hole; the side wall of the boiler is provided with an adjusting component for controlling the size of an adjusting hole channel on the sealing plate; a preheating box is wrapped outside the spiral coil pipe; an auxiliary steam pipe in communication with the boileris arranged at the upper end of the preheating box; and a return pipe communicates between the bottom of the preheating box and the water replenishing box. According to the automatic water replenishing equipment for the steam boiler, dynamic water replenishing can be realized, the water level in the boiler is always kept at a stable position, and the fluctuation of the water level in the boiler issmall, so that stable heat supply of the steam is ensured; and in the water replenishing process, the steam in the boiler is used for preheating the cold water in the water replenishing pipe, so thatthe rapid reduction of the water temperature caused by the fact that the cold water directly enters the boiler is avoided, and the steam supply interruption or steam pressure fluctuation is avoided.