108results about How to "Evenly compacted" patented technology

A method of making a catheter balloon or other expandable tubular medical device or component thereof formed of a compacted porous polymeric material, in which a tube of porous polymeric material is axially compacted, preferably without increasing the outer diameter of the tube, by positioning heat shrink material on the porous polymeric tube and heating the heat shrink material to decrease the length and diameter of the heat shrink material.

An apparatus for attachment to dump trucks having a dump bed and a chute for discharging material onto a road shoulder and/or roadway. The apparatus allows the truck with a single operator to perform shoulder and/or roadway surfacing and/or repair by receiving and grading repair material into place. The attachment being adjustable as to pitch, width and depth of the repair material. The attachment being adjustable to allow a greater or lesser amount of material to be applied to a shoulder closer to the roadway surface if a deeper fill is required. The apparatus allows for rotational movement between the apparatus and the dump truck in a direction parallel to the roadways length and perpendicular to the roadways surface. The tires of the dump truck being utilized to compact the repair material. The apparatus being stored in a vertical position when not in use.

A method for manufacturing complex hollow composite parts with at least one internal structure formed in situ by laying laminated layers around a removable mandrel assembled inside the part's inner cavity. The inner mandrel is made up of two jig plate assemblies aligned in a parallel manner and space apart where the internal structure is to manufactured. Each jig plate assembly is made up of at least three jig plates stacked in an edge-to-edge manner Located on opposite sides of each jig plate assembly is an elastic envelope filled with spherical objects. When evacuated, the envelope collapses and relaxes and composite material may then laid up inside the inner cavity and around the envelopes. When exposed to a heat, the envelopes expand and in situ and form internal structures inside surface of the cavity. Each envelope and each jig plate assemblies can be easily dissembled and reused.

The invention discloses a dead weight type compaction device for road repairing of municipal construction. The dead weight type compaction device comprises a supporting plate, wherein supporting frames are respectively mounted on two sides of the upper end of the supporting plate; a crossbeam is mounted at the upper end of the supporting frame; a driving motor is mounted at the middle part of theupper end of the crossbeam; a driving shaft is mounted at the lower end of the driving motor; a driving gear is mounted in the middle part of the driving shaft; a rotating gear is meshed with each oftwo ends of the driving gear; a rotating shaft is mounted in the middle part of each rotating gear; a first worm is mounted at the lower end of a left side rotating shaft, and a first worm wheel is meshed with the left end of the first worm; a second worm is mounted at the lower end of a right side rotating shaft, and a second worm wheel is meshed with the right end of the second worm; fixing shafts are respectively mounted in the middle part of the first worm wheel and the middle part of the second worm wheel; a meshing gear is mounted at the middle part of the front end of each fixing shaft;and a lifting rack is meshed with the outer side of each meshing gear. According to the dead weight type compaction device disclosed by the invention, the up-and-down reciprocating movement of a compaction plate is realized, so that the compaction effect to road surfaces is realized by the gravity of the compaction plate, and the compaction requirements for different road surfaces are also met.

The invention provides an evaluation device and method of well cementation flushing efficiency. Designed according to the Reynolds number equality theory, the device comprises a simulated well casing, a heating water tank, a power pump and an electromagnetic flowmeter, wherein the simulated well casing mainly comprises an inner barrel and an outer barrel; the inner barrel comprises an inner barrel body, steel screen meshes with different mesh numbers and an inner barrel end cover; the inner barrel can simulate a stratum under the circumstance that the steel screen meshes are covered with filter paper or the inner barrel is filled with quartz sand; the outer barrel can rotate; guide vanes with different forms are designed to simulate a casing pipe. The method is easy to operate, high in comparability and low in workload, can effectively form a filter cake, simulate and evaluate the characteristics of the flushing efficiency under the circumstance that the casing pipe rotates or a spiral centralizer is used, can evaluate the flushing efficiency of flushing fluid for a first interface and a second interface, can evaluate and optimally select the flushing fluid system and design the dosage of the flushing fluid, and is wide in application.

The invention belongs to the technical field of tamping apparatuses, in particular to a tamping apparatus for road engineering. Aiming to solve problems that local cavities in the road surface, uneventamping, a lot of dust during work and inconvenient movement are likely to occur, the invention proposes the following scheme: the tamping apparatus comprises a bottom plate and a mounting rack; theouter walls on both sides of the top end of the bottom plate are fixed by bolts with vertically arranged positioning posts; the outer wall of one side of the top end of the bottom plate is fixed witha vibration motor by bolts; the side walls of the two positioning posts are sleeved with connecting sleeves; and the two connecting sleeves are respectively fixed by bolts at intermediate positions onthe outer walls of the two sides of the mounting rack; and shock absorbing rods are hinged at positions, close to four corner portions, of the outer wall of the two sides of the mounting rack. The tamping apparatus of the invention can realize graded tamping, improve the tamping effect, make the tamping more uniform, avoid the local cavity phenomenon, collect dust, reduce the amount of dust in the working process and improve the working environment.

The invention discloses a mixed soil extruded and cured precast pile for soft foundation treatment as well as a construction method. Foundation soil is connected with drill holes which are connected with mixed soil extruded and cured precast pile bodies, the mixed soil extruded and cured precast pile bodies are connected with cement mortar through a central hole, and the cement mortar is connected with a seamless steel pipe which is connected with a grouting pipe. The construction method comprises the following steps: A, a vibrating pipe-sunk pile machine is adopted for hole forming; B, the mixed soil extruded and cured precast pile bodies are placed; C, the seamless steel pipe is placed, and a vibrating sunk pipe is pulled out; D, grouting is performed: the a seamless steel pipe is connected with the grouting pipe, pressure cement mortar is grouted into the seamless steel pipe, and the seamless steel pipe and the precast pile bodies form the integral mixed soil extruded and cured precast pile after mortar curing; E, integral construction is performed. The mixed soil pile is precast by waste construction waste and common clay, the manufacture is convenient and fast, the quality is reliable, the transport cost is reduced, modular piling construction is efficient and convenient, and the integral bearing capacity of a foundation is improved effectively.

The invention relates to a corestone compaction device. The corestone compaction device comprises a frame base, a plunger type hydraulic cylinder, a filling tube, a sand-filled tube and a sand-filled tube rear bracket. The plunger type hydraulic cylinder is horizontally located at the rear end of the frame base, a compaction head is arranged at the front end of a plunger of the plunger type hydraulic cylinder, and the compaction head is provided with scale marks. The sand-filled tube is connected and communicated with the filling tube, the filling tube is arranged corresponding to the compaction head, and the sand-filled tube, the filling tube and the compaction head are placed in the same horizontal axis. The rear end of the plunger type hydraulic cylinder is just positioned in a frame base rear support, and the front end of the plunger type hydraulic cylinder is placed in a rear supporting plate. A U-shaped groove is formed in a frame base front support, and a U-shaped groove is also formed in a front supporting plate. The two ends of the filling tube and the two ends of the sand-filled tube are respectively provided with a flange, the flange at one end of the filling tube is placed in the U-shaped groove of the frame base front support, and the flange at the other end of the filling tube is placed in the U-shaped groove of the front supporting plate. The flange at the front end of the sand-filled tube is mounted on the sand-filled tube rear bracket, and the flange at the rear end of the sand-filled tube is placed in the U-shaped groove of the frame base front support. By means of the corestone compaction device, one-time even corestone compaction can be achieved, and the diameter of the filling tube and the diameter of the sand-filled tube cannot be limited.

The invention provides a feeding compaction assembly of a mushroom seed packing machine, and belongs to the technical field of machines. The problem that base materials are loose and unbeneficial to transportation in the existing mushroom seed manual packing process is solved. The feeding compaction assembly of the mushroom seed packing machine comprises a rack and a shell, a feeding opening and a discharging opening are formed in the shell, a conveying plate capable of moving in a circulating mode is arranged in the shell, material separation plates are evenly and vertically arranged on the conveying plate, and are evenly arranged in the feeding direction of the conveying plate, two side plates are fixedly connected to the middle of the shell and arranged on the two sides of the conveying plate respectively, a material pressing cavity is formed among the two side plates and two corresponding material separation plates, and a material pressing plate and a lifting mechanism capable of driving the material pressing plate to do reciprocating lifting motion are arranged on the upper side of the material pressing cavity. The feeding compaction assembly of the mushroom seed packing machine has the advantage of being capable of compacting the base materials.

The invention discloses a preparation device of a triaxial test sample provided with a structure in contact with soil. The preparation device comprises a test sample base, a rubber diaphragm, a split die and a cylinder, wherein the diameter of the cylinder is the same as that of the triaxial test sample, a narrow groove is formed at one end of the cylinder, and width and height of the narrow groove are completely consistent with those of the structure to be simulated. According to the invention, soil body nearby the contact surface is uniformly compacted, and the rubber diaphragm can be effectively prevented from being damaged during the preparation of the test sample, so that preparation quality of the test sample is ensured, and working efficiency is obviously increased.

The invention discloses a continuous straw feed production line which comprises a crushing device, a material feeding device, a material collecting cabin, a straw compaction device, a finished productconveying device and a controller, wherein the inlet end of the material feeding device is connected with a material discharging opening of the crushing device; the outlet end of the material feedingdevice is connected with the material collecting cabin; a first material discharging passage is arranged at the bottom of the material collecting cabin; a first electric control material dischargingvalve is arranged on the first material discharging passage; the straw compaction device comprises a compaction cabin and a compaction mechanism used for compacting materials entering the compaction cabin; the material collecting cabin is arranged on the top of the compaction cabin; the first material discharging passage communicates with the compaction cabin; a second material discharging passageis arranged at the bottom of the compaction cabin; a second electric control material discharging valve is arranged on the second material discharging passage; the lower end of the second material discharging passage is provided with a compaction feed bag in a sleeved way; and the finished product conveying device is positioned under the second material discharging passage. The continuous straw feed production line has the advantages that the crushing, compaction and bag charging continuous production can be realized; the production efficiency is high; the occupied space of straw feed is reduced; and the transportation and the storage of the straw feed are facilitated.

This invention is an electro-thermal tube and its molded method. It solves the question of electro-thermal tube which would be extended in length when they heating in the mould, then its length and shape cannot be controlled very accurately, and the insulation power inside the tube would not be compressed tightly. In the figure we can see the electro-thermal tube and in its inner insulation powder and electric resistance, block up at inlet of the metal tube, they keep distance with the rube and keep distance with the metal rod too. This tube has been shaped by a metal tube which has ellipse section in its face having concave and convex structure and at least has one plane structure. The step of forming the tube is to put the tube on the proper place into the model A, at the concave place on this model, and press model B upon model A. shape concave and convex structure on the metal tube's face and extend this action along the tube, when the shaping action finished, take out of the models.

A multi-mode showerhead has a housing with a front and a back and an offset integrated water filter system incorporated into the showerhead so that the showerhead with the integrated water filter system may be easily mounted to a normal shower arm without the need of special tools. A water filter cartridge is easily added to or removed from a hollow filter chamber formed in the showerhead by the removal of a front facing filter chamber cap. A multi-mode switch thatselectively changes the spray pattern is mounted on the front between the water filter system and a plurality of nozzles. The entire showerhead and integrated offset water filter system is mounted on a shower arm by means of a swivel joint forming an inlet on the back of the housing and fluidly connected to the hollow filter chamber.

The invention discloses a forestry sapling planting bending righting device. The device comprises a bottom plate, a first supporting plate capable of moving left and right is mounted on the inner wall of the right end of the bottom plate, a long vertical plate is fixedly connected to the surface of the upper end of the first supporting plate, a first sliding plate is slidably connected to the surface of the left end of the long vertical plate, and a spiral cutter is mounted at the left end of the first sliding plate. When the first supporting plate moves leftwards, a structure that the first sliding plate moves downwards can be formed, and when the first sliding plate moves downwards to the bottom end, a structure that the spiral cutter moves up and down while rotating can be formed. A rotatable first rotating shaft is installed at the left side of the upper end of the bottom plate, two arc-shaped connecting rods which are symmetrical in the front-back direction and mutually hinged in inner sides are arranged at the right end of the first rotating shaft, and when the first rotating shaft rotates, a structure that the arc-shaped connecting rods are folded towards the inner sides and then move upwards can be formed. Through the arc-shaped connecting rods which can be folded towards the inner sides and then move upwards, bent or inclined saplings can be righted.

In the production of road surfaces of asphalt and concrete (33), it has been necessary hitherto to use different road pavers, which requires additional complexity, in particular when a wearing course (32) of concrete (33) is to be applied to a base (31) of asphalt. The invention provides to produce road surfaces of concrete (33) with a road paver intended for the processing of asphalt in that suspended vibrating bodies (23) are used which are inserted at least partially into the concrete (33) to be compacted. As a result, a road surface of concrete (33) can be produced with a road paver intended for the laying of road surfaces of asphalt. A laying screed (17) of the road paver is preferably guided rigidly, that is to say non-height-adjustably.