14results about How to "Guaranteed support" patented technology

The invention discloses a distributed cross-network segment file transmission method. The method comprises the following steps of S1, deploying a file transmission service in a local area network; s2, carrying out transmission node registration among the local area networks through a file transmission service; s3, determining a transmission path according to whether a target node is contained in the local area network; s4, after a transmission path is obtained, encrypting the file fragments according to path information, and sending the encrypted file fragments to a next transmission node; s5, the receiving node decrypts the data packet according to the source node information and continues to transmit the data packet according to the routing information until the data packet arrives at the destination; s6, after receiving all the fragmented data, the receiver returns confirmation information of successful receiving to the sender; and S7, if the sender does not receive the receiving confirmation for a long time, re-sending the unconfirmed fragmented data packet. According to the invention, the file transmission efficiency and security are improved, and the reliability and stability of the system are enhanced.

The utility model discloses a plant safety protection device for mine phytoremediation, and relates to the technical field of plant safety protection. The fixing device comprises arc-shaped plates, each arc-shaped plate is provided with a fixing mechanism, a connecting mechanism and a supporting mechanism, each fixing mechanism comprises a fixing assembly and a buffering assembly, and the fixing mechanisms are arranged, so that the extending length of an elastic band is adjusted according to the diameter of a trunk, and the arc-shaped plates can be tightly attached to the skin of the trunk. The device is easy to assemble and convenient to install, meanwhile, adjustment and fixation can be conducted according to trees of different diameters, the installation efficiency of the device is greatly improved, the fixing tightness degree can be adjusted through the telescopic characteristic of an elastic band, the growth environment of the trees is prevented from being affected, and the device is suitable for popularization and application. The dampers, the baffles and the springs are arranged on the outer walls of the arc-shaped plates, and after the arc-shaped plates are fixed to the lower half portion of the tree trunk, stones sliding off from the mine slope can be blocked.

The utility model discloses a heavy eave hilly top roof overhanging structure formwork supporting system which comprises a plurality of main supporting steel beams located at a roof overhanging position, a formwork supporting frame and a roof overhanging structure formwork, the main supporting steel beams are distributed in parallel along the horizontal plane, one end of each main supporting steel beam is fixedly connected with a top floor, and the other end of each main supporting steel beam is fixedly connected with the formwork supporting frame. The other ends of the main supporting steel beams extend to the outer portion of the top floor and are distributed in an overhanging mode. A plurality of auxiliary supporting steel beams perpendicular to the main supporting steel beams are arranged at the positions, above the cantilever ends, of the main supporting steel beams, the formwork supporting frame is arranged above the auxiliary supporting steel beams, the roof cantilever structure formwork is fixed to the top of the formwork supporting frame, and a scaffold of a double-row outer frame structure is erected on the outer side of the formwork supporting frame. The lower portion of the scaffold is connected with the main supporting steel beam. The formwork supporting device is simple in structure, low in erecting difficulty and high in safety, and the formwork supporting problem of cantilever structures of multi-layer, high-layer and small high-layer roofs is solved.

This utility model discloses a support mechanism for long springs, including a mounting column and an extension assembly. The mounting column has a first V-shaped strip at its top. The extension assembly includes two extension columns, each with a rotating bolt on one side edge and rotating grooves on both sides edge of the mounting column. This utility model extends the first V-shaped strip by using a second V-shaped strip to support springs of different lengths. When the extension column is extended, a limiting rod engages with a limiting port, i.e., the mounting spring pushes the limiting rod into the limiting port, thus fixing the position of the extension column. A caster wheel supports the outer side of the extension column, ensuring its stability. Furthermore, when supporting the spring, there is only a certain gap between the first and second V-shaped strips, ensuring support for the spring and preventing sagging of unsupported parts of the spring due to a large gap.

The invention belongs to the technical field of water pumps, and particularly relates to a flow guide pump which comprises a front cover, a rear cover and a flow guide plate. The rear shell is provided with a second runner surface, and a runner is defined by the second runner surface and the first runner surface; the water inlet pipe is arranged on the front cover, is coaxial with the central axis of the front cover and is communicated with the flow channel; the water outlet pipe is arranged on the front cover, perpendicular to the central axis of the front cover and communicated with the flow channel, and the section of the flow channel is gradually increased from the end away from the water outlet pipe to the end close to the water outlet pipe; the impeller is used for introducing water in the water inlet pipe into the flow channel and pumping the water in the flow channel out of the water outlet pipe; the silencing wall is located in the front cover and arranged around the periphery of the first flow channel face, the interior of the silencing wall is hollow, a plurality of reinforcing ribs are arranged in the silencing wall at intervals, and the interior of the silencing wall is separated by the reinforcing ribs to form a plurality of silencing cavities. Noise can be effectively absorbed and reduced, turbulent flow is reduced, and the operation efficiency of the pump is improved.

The application discloses a square tube slotting clamping structure and belongs to the technical field of machining. Mainly includes: clamping angle bar, the clamping angle bar all has clamping surface, the clamping surface is used for contacting with square tube, and the number of the clamping angle bar is consistent with the number of square tube's angle;Locking unit, the locking unit is used for locking two adjacent clamping angle bars;Wherein: the clamping angle bar is suitable for sticking to the angle of square tube, and two adjacent clamping angle bars are locked through the locking unit, the position of square tube not contacting with the clamping angle bar is the avoiding area, by setting clamping structure, the avoiding area can be set for the slotting of square tube while ensuring the holding force of square tube, so as to avoid the damage of cutter and clamp.

The utility model discloses a four -column press of hard alloy top hammer press -molding, including four -column press host computer, movable crossbeam, platform and double -position die switching mechanism, lift rotary drive unit, mechanical positioning unit, the utility model discloses through being provided with the rotary workbench of double -position, and make rotary workbench realize the switching of double -position through lift rotary drive unit, when the pressing position is being performing pressing and pressure -holding procedure, and operating position can synchronous carry out the operation such as ejection pressure base, cleaning mould, spraying release agent, loading new material to when, make the movable crossbeam of press machine can immediately press the next mould that has prepared after completing once pressing, improved production efficiency.

The utility model provides a kind of foldable guide rod device, including middle guide rod welding, and the left and right sides of middle guide rod welding are equipped with hose and side guide rod, and one end of hose is hinged with middle guide rod welding through first hinged shaft, and hose can rotate up and down relative to middle guide rod welding around first hinged shaft, and the other end of hose is hinged with side guide rod through second hinged shaft, and side guide rod can rotate up and down relative to hose around second hinged shaft;Side guide rod downside is also fixed with mounting support assembly.Adopting the utility model, by setting hose between middle guide rod welding and side guide rod, hose can be curved with the folding of cutting table, avoid hard contact and structural interference;At the same time, the hinged structure of hose two ends reliably releases deformation stress, avoids the folding situation of hose, guarantees the service life of hose.

The utility model discloses a transparent door plate fixing structure which comprises an outer frame assembly, a to-be-installed plate and at least two clamping and fixing assemblies, a display hole used for being matched with the to-be-installed plate is formed in the middle of the outer frame assembly, clamping and fixing edges are arranged at the upper end and the lower end of the outer frame assembly respectively, and clamping and fixing grooves are formed in the clamping and fixing edges. The clamping and fixing assembly comprises a matching part, an elastic part and a buckling part, the two ends of the elastic part are connected with the matching part and the buckling part respectively, and the matching part is provided with a lower abutting vacant position used for abutting against a to-be-installed plate. The to-be-installed plate abuts against the lower abutting vacant position, the buckling part is buckled and fixed to the buckling groove, and the elastic part is in an extruded state, so that the matching part and the to-be-installed plate are fixed to the outer frame assembly.

The invention provides a hydraulic support. The hydraulic support comprises a support body; the pressure adjusting system is located between the base and the top beam and comprises a main pipeline and a plurality of branch pipelines, one end of the main pipeline communicates with the oil tank, the other end of the main pipeline communicates with the branch pipelines, the branch pipelines correspond to the hydraulic props one to one, a first valve body is arranged on the main pipeline, and a second valve body is arranged on the second valve body; second valve bodies are arranged on the branch pipelines, the number of the second valve bodies is multiple, and the multiple second valve bodies and the multiple branch pipelines are arranged in a one-to-one correspondence mode; and the multiple cleaning assemblies are arranged on the second valve bodies, the cleaning assemblies are used for cleaning the second valve bodies, and the multiple cleaning assemblies and the multiple second valve bodies are arranged in a one-to-one correspondence mode. By means of the technical scheme, the problems that in the prior art, a hydraulic column of a hydraulic support is controlled by an independent hydraulic valve, after one hydraulic valve is damaged, replacement is inconvenient, and the bearing capacity of the whole device can be greatly reduced can be solved.

The utility model belongs to the technical field of logging instruments, and discloses a high-temperature direct-pushing lithologic density instrument which comprises a main body and a density probe, a containing groove matched with the density probe is formed in the main body, and a plate-shaped spring is further arranged in the containing groove. The device is characterized by also comprising a connecting arm reed and a pressing block, the connecting arm reed is S-shaped, and one end of the connecting arm reed is provided with a tooth groove and a long-strip-shaped hole. The pressing block is provided with a tooth groove and a bolt hole. According to the scheme, the problems that the attaching state of the probe and the well wall is not ideal and the well logging effect is poor due to the fact that a single supporting reed is insufficient in supporting force are effectively solved. According to the scheme, the connecting arm reed is of an S-shaped structure, the single side of the connecting arm reed is open, the connecting arm reed is fully attached to the connecting arm, and the supporting force is evenly released.

The present invention provides a steel-concrete composite pipe segment and grouting construction method for fast installation of double-shield TBM construction in a weak broken zone, wherein the steel-concrete composite pipe segment includes a capping block, a bottom pipe block, and two standard blocks for connecting the capping block and the bottom pipe block; the capping block body is a steel pipe segment, and the capping block has an inner cavity, the top of the inner cavity of the capping block is open and covered with an epoxy resin film, and the epoxy resin film can be opened upward; a rubber airbag device is provided in the inner cavity of the capping block; a grouting connection port is provided on the inner side of the capping block, and the grouting connection port is connected to the inner cavity. The present invention can effectively resist the upward buoyancy of the upper panel of the capping block during grouting through the rubber airbag, balance the pressure from the top surrounding rock, ensure that the pipe segment lining ring does not deform, and improve stability.