60results about How to "Act as a temporary support" patented technology

The invention provides a shield tunneling machine station and starting construction method, and aim at simultaneously carrying out construction of a station and starting of a shield tunneling machinein an excavated foundation pit. The method comprises the following steps of (1) construction of a base layer plate, and building of supporting frames and a scaffold; (2) assembly of the shield tunneling machine and entering of components into the foundation pit; and (3) construction of upper layer plates. According to the shield tunneling machine station and starting construction method, construction of the upper layer plates can be carried out while the assembly components of the shield tunneling machine enter the foundation pit one by one for assembly, so that the structure of the station isconstructed layer by layer, construction of the station is carried out, the assembly and starting of the shield tunneling machine and construction of the station can be carried out at the same time,mutual waiting is not needed, the progress of tunnel construction is guaranteed, meanwhile, the construction period of the station is greatly shortened, the influence on the ground road is reduced, and walking convenience is improved; the shield tunneling machine is assembled in the supporting frames, and the supporting frame can protect the shield tunneling machine, so that the situation that theshield tunneling machined is damaged due to the fact that a falling object falls onto the shield tunneling machine when the station that construction is carried out at the same time is avoided; and meanwhile, the supporting frames can play a temporary supporting role of the scaffold, the upper layer plate are constructed, construction of the station is facilitated, and the construction speed of the station is ensured.

The invention discloses an intracranial cerebrospinal fluid drainage tube in the technical field of medical devices. An inner cavity of the drainage tube is transversely provided with a guide needle.The right side of the guide needle runs through a Luer taper and extends outside the right side of the drainage tube, the left side of the guide needle is connected with the left side of the drainagecavity, and the right side of the guide needle is provided with a Luer block shot; the front end face of the drainage tube is provided with a scale line from left to right in turn, and the left side of the drainage tube is provided with external expansion structures in an annular manner. The drainage tube has the advantages that through the external expansion structures, the drainage tube can expand outward to fill a tumor cavity in the early stage of tumor removal and plays a role in temporarily supporting and occupying a space, and the drainage tube can be fixed to prevent displacement and dislocation. With the process of continuous drainage and reset of a brain tissue, the brain tissue is contracted by squeezing the external expansion structures, and the elastic external expansion structures are contracted and gathered; at the same time, gaps between the external expansion structures persistently exist. The drainage tube maintains the drainage function continuously and the stabilityof the intracranial pressure is maintained.

The invention discloses a method for correcting and resetting blast furnace body, which can obviously shorten the construction period; the method mainly comprises: A, dividing the blast furnace above the furnace base into a furnace bottom and an upper furnace body, then lifting the upper furnace body and fixing; B, removing the furnace bottom on the furnace base; C, determining a theoretical center point of the furnace bottom on the furnace base and the theoretical elevation of the furnace bottom; D, according to the theoretical center point of the furnace bottom and the theoretical elevationof the furnace bottom, installing a new furnace bottom on the furnace base; E, determining the offset distance between the orthographic projection of the top center of the upper furnace body on the furnace base and the theoretical center point of the furnace bottom on the furnace base; F, adjusting the upper furnace body so that the axial direction of the upper furnace is parallel to the new furnace bottom; the offset distance is reduced to less than or equal to H/1000; wherein H is the height of the furnace, and the dislocation degree between the outer wall of the upper furnace body and the outer wall of the new furnace bottom can satisfy the installing requirement of the blast furnace; G, connecting the upper furnace body with the new furnace bottom on the furnace base.

The invention provides an auxiliary support based on high-altitude outdoor air conditioner outdoor unit installation, and relates to the technical field of air conditioner outdoor unit installation. The auxiliary support solves the problems that an existing support used for supporting an air conditioner outdoor unit is not provided with a corresponding warning structure, and if an air conditioneroutdoor unit supporting frame causes the air conditioner outdoor unit to fall due to installation factors or corrosion factors, residents cannot know the situation immediately, and great potential safety hazards exist. The auxiliary support based on high-altitude outdoor air conditioner outdoor unit installation comprises fixing angle steel, and a set of left side supporting angle steel and a setof right side supporting angle steel are fixedly installed on the left side and the right side of the inwards-concave end of the fixing angle steel through a set of fastening bolts correspondingly; and when a rectangular pressing plate is pressed down by the air conditioner outdoor unit, an insulating inserting piece slides downwards along a through inserting opening formed in the top end face andthe bottom end face of a rectangular shell, so that at the moment, a power source in the rectangular shell is switched on, a buzzer makes a high-decibel sound, residents are reminded to maintain in time, and the warning effect on pedestrians close to a road on the lower side of the rectangular shell is achieved.

The invention provides a support rod component. The support rod component comprises a main pipe, a support rod and end portions which are arranged on the main pipe in an extensible mode. The support rod component are supported in a support or a tunnel, provides extra bearing force for the support, solves the problem that the bearing force of the support is unstable in a period of changing the support or repairing an old tunnel, plays a temporary supporting role for the support or the tunnel, supports a deformed support and enables the support to resile.

The invention provides a stable support device of a vertical shaft heading machine. A fixed center ring is arranged above a cutter head of the heading machine, multiple telescopic devices are annularly arranged on the fixed center ring, the adjacent telescopic devices are connected through connecting devices, and supporting devices are arranged on the telescopic devices. The stable support deviceis compact in structural design, the stability of a stratum during heading of the heading machine is guaranteed greatly, influences of equipment vibration on the stratum are reduced, the safety is improved and the service life of equipment is prolonged during heading of the heading machine, meanwhile, equipment reactive torque is provided to prevent the equipment from rotating under cutting torque, and the stable support device can further temporarily support an unstable stratum and earns time for adoption of other auxiliary construction procedures.

The invention discloses an assemble rectangular ejecting tube section. Each rectangular ejecting tube section is composed of two or more than two pieces of assemble prefabricated tube sheets, a convenient and fast joint or a step shear key, a pre-buried water stop steel pnd a sealed water stop rubber strip are arranged on each prefabricated tube sheet, quick positioning and connecting fixing are conducted on the splicing surface of each prefabricated tube sheet through the convenient and fast joint or the step shear key, the pre-buried water stop steel plate is arranged on the outer side of the slicing surface of each prefabricated tube sheet for water stopping, the grouting hole is reversed in the inner side of the splicing surface of each prefabricated tube sheet, the sealed water stop rubber strip is reversed at the splicing surface of each prefabricated tube sheet, and a waterproof system is formed jointly by the pre-buried water stop steel plate, the grouting hole and the sealed water stop rubber strip; and an inter-ring pre-buried water stop steel plate and a sealed water stop rubber strip are arranged between tube sections, and sealing is achieved through ejecting feeding pressure for ejecting. In addition, by being combined with use functions, a wing wall and/or a laminated plate is needed to be arranged in each ejecting tube section to form a space stable structure, atemporary supporting function is achieved during assembling, and the functional requirements of the use state are met.

The invention discloses a method for constructing a gob-side entry retaining roadside support based on a gangue cement-based material, and relates to the technical field of underground gob-side entryretaining roadside supports. The method comprises the following steps: firstly, arranging single props in a gangue transportation roadway, and arranging baffles beside the single props; secondly, starting filling equipment, and sequentially filling a gob with gangue from far to near; thirdly, when a filling body is close to the gob at an entry retaining position, filling and tamping a cementing body; and finally, after a filled wall body is fully solidified and stabilized, recovering a part of or all single props and hinged top beams in a row in the middle of the entry retaining. The method issuitable for a solid filling working surface; gob-side entry retaining is performed by a method of combining the single prop baffles and the tamped cementing body for retaining the roadway; the single props support the hinged top beams or steel beams to achieve a temporary support effect and maintain the stability of the roadway; after the cementing material is tamped, an effect of quickly improving the support strength can be achieved, and the time for waiting for final setting during cementing filling is shortened; and the initial bearing capacity is high, and the entry retaining effect isgood.

The invention discloses an adjustable steel girder support device and system; the support device comprises an upper beam, a lower beam, and a support adjusting bolt; the support adjusting bolt is threaded with a support nut; a support bar is rotatably connected on two ends of the upper beam; the distance between the support bar rotary point and the end portion is bigger than that between the support nut and the lower beam top surface; when the support nut height needs to be adjusted, the upper beam is pulled up, the support bars on two ends are rotated, so the long edge of the support bar is in a vertical state and can support the pulled upper beam, and the support nut is rotated and adjusted in positions; in operation, the upper beam does not need to be pulled at all time, so the adjusting operation can be easier and more convenient; the adjustable steel girder support devices can be connected via a shear-fork type structure so as to form the support system, thus ensuring the distanceuniformity between each adjustable steel girder support device; the adjustable steel girder support device is good and stable in support effect.

The invention discloses a mechanical rock-breaking drilling process of a vertical shaft heading machine in a broken stratum. The mechanical rock-breaking drilling process of the vertical shaft heading machine in the broken stratum comprises the following steps: step A, preparation work: connecting a raise-drilling rod with the vertical shaft heading machine; step B, starting of drilling: pushing a gear reduction box to move downwards by a telescopic oil cylinder, then enabling a drill bit to move downwards, and enabling a quarter shield to synchronously move downwards along with a sliding ring on the gear reduction box to temporarily support a well side; step C, circulating drilling: matching the raise-drilling rod with a shoe plate, and circulating the step B; step D, supporting the well side by workers on a hanging scaffold; and step E, completion of drilling: completing drilling by circulating the steps B-D. According to the invention, the vertical shaft heading machine is lifted by using the raise-drilling rod, so that the vertical stress of the shoe plate is canceled, and the shoe plate only bears the reaction torque driven by the rotation of the drill bit, so that the supporting force of the shoe plate on a broken well wall is reduced to the minimum, and the reaction torque can also be provided in the broken stratum.

The invention provides vibrating screen equipment for screening building sand. The vibrating screen equipment comprises an arc-shaped groove, a top plate, a hand piece, a sand baffling plate and clamping teeth, wherein a screening body is of a rectangular hollow structure; a screen mesh is mounted in the screening body; a baffle plate is mounted above the screening body in a welding manner; a sandreceiving plate is connected with the internal side edge of a main body through an auxiliary connecting piece; and the sand baffling plate is mounted above the sand receiving plate in a welding manner. The material is added in a sand storage cabin manually; and the hand piece is rotated downwards manually, so that the front end of the top plate jacks up the sand baffling plate; through rotating the hand piece by different angles manually, the front end of the top plate is clamped in the clamping teeth below the sand baffling plate to enable the sand baffling plate to ascend to different heights, so that different amounts of material flow out; and when the materials flow out, the sand storage cabin is pushed manually to move along the upper part of the main body, so that the material flowsout of different positions.

The invention relates to a physics teaching experiment display system, which comprises a base station and an experiment mechanism, and is characterized in that the base station is arranged on an existing working tabletop in a sliding fit mode, and the experiment mechanism is arranged at the upper end of the base station. According to the invention, the design concept of a multi-density measurementstructure is adopted for physics teaching experiment display; The whole arranged experimental mechanism has the function of measuring the triple density of solid, liquid and gas under the cooperationof other density measuring structures, so that the functions of the whole device are diversified, and the practicability and the display performance of the whole device are improved; the sponge stripand the sponge block can absorb and remove liquid carried by the elastic dynamometer and residual liquid on the surface of an object by means of the shape characteristics of the sponge strip and thesponge block, so that the probability that the density measurement result is influenced by additional factors is reduced to the maximum extent, and the accuracy of object or liquid density measurementis improved.

The invention discloses a pile foundation construction method and a pier construction method. The pile foundation construction method comprises the following steps that a steel beam is fixed to a soil body on the periphery of a preset pile hole; at least one part of a steel pipe column is placed in the preset pile hole, and the other part of the steel pipe column is exposed out of the soil body; the steel pipe column is fixed to the steel beam; and concrete is injected into the preset pile hole through the steel pipe column, so that the steel pipe column is connected with the stratum through the condensed concrete. According to the technical scheme of the pile foundation construction method, the technical problem that in the prior art, a pile foundation of a temporary support is prone to moving due to concrete buoyancy and disturbance is solved.

The invention discloses a material stacking mechanism for automatic production line equipment for cap making. The material stacking mechanism comprises side baffles, trays and a telescopic table; guiders are arranged at the two ends of the telescopic table; outer guide rods are mounted at the bottoms of the guiders through bolts; the side baffles are welded to the bottoms of the outer guide rods; an inner guide rod is arranged between the outer guide rods; the top of the inner guide rod is located at the bottom end of the telescopic table; the trays are arranged between the outer guide rods and the inner guide rod; a supporting plate is mounted at the bottoms of the trays through bolts; and a lifter is mounted at one end of the bottom of the supporting plate through a fixing base. The material stacking mechanism can automatically stack shell fabric grabbed by a manipulator, the material stacking thickness can be adjusted, the automation degree is high, the stabilizing effect is good, and the material stacking mechanism is suitable for being widely used and popularized.