298results about How to "Large bearing capacity" patented technology

The invention relates to a shear wall and a construction method thereof, in particular to a prefabricated concrete-filled steel tube frame-shear wall and a construction method thereof. The shear wall includes an integral prefabricated concrete-filled steel tube frame-shear wall and a split prefabricated concrete-filled steel tube frame-shear wall. The integral prefabricated concrete-filled steel tube frame-shear wall comprises a concrete-filled steel tube frame and an integral shear wall slab. The split prefabricated concrete-filled steel tube frame-shear wall comprises a combined wall slab, a single wall slab and a concrete-filled steel tube frame. Both the integral prefabricated concrete-filled steel tube frame-shear wall and the split prefabricated concrete-filled steel tube frame-shear wall are prefabricated in a factory. In construction, the wall slabs are hoisted in position one by one, the prefabricated concrete-filled steel tube frame-shear wall slabs are connected, and construction of a single-layer structure is complete step by step. The advantages of the concrete-filled steel tube columns and the reinforced concrete shear walls are integrated, the bearing capacity and the rigidity of the shear wall are enhanced, the ductility and the energy consumption behavior of the shear wall are improved, and by means of prefabrication in the factory and on-site assembly, construction quality of building components can be guaranteed, construction speed is increased and labor intensity is reduced.

The invention relates to the technical field of cutting and processing, and discloses a cutting device, which includes a base. Both sides of the top of the base are fixedly connected with fixed seats, and the top of the fixed seats are fixedly connected with lifting columns. A guide groove is opened on one side of the column, and the inside of the guide groove is movably connected with a first slider. The top of the lifting column is fixedly connected with a fixed column, and a servo motor is installed inside the fixed column. The output of the servo motor The shaft is fixedly connected with a first threaded rod, and the first threaded rod is located inside the lifting column. The cutting device collects the dust generated by cutting through the collection tank on the workbench, filters it through the leak plate, sprays water mist through the atomizing nozzle on one side of the collection tank, and makes the dust floating in the air fall through the second connecting pipe It enters the treatment tank, is filtered and purified by the purification layer, and enters the water tank through the outlet pipe for recycling, which saves energy and is easy to clean.

The invention relates to inorganic thermal-insulation mortar used for building exterior walls of buildings and a preparation method thereof. The invention is characterized in that the thermal-insulation mortar comprises the following components in part by weight: lightweight aggregate 100-150, binding material 100-150, fly ash 10-60, and additive 8.72-11.36. Compared with the prior art, the inorganic thermal-insulation mortar has the advantages of high weather resistance, high aging resistance, long service life, high fireproofing and flame-retarding performance, energy conservation and environment protection.

In an exhaust control valve having a valve housing and a valve body rotatably contained in the valve housing, a transmission member is fitted to an outer end of the valve shaft and protrudes from the outside of the valve housing. A bearing bushing for rotatably bearing an external circumferential surface of the valve shaft by its internal circumferential surface and rotatably bearing an end face of the valve body by its end face is mounted in the valve housing. The valve body is urged by load from a thrust spring for achieving a pressure contact seal condition between the opposed end faces of the bearing bush and the valve body.

The present invention disclose a steel plate-concrete composite lining which combines support and water proof and belongs to tunnel safe support device range. It can be applied for construction of new tunnel with high force bearing and water proof requirement and the reinforcement of existing structures, and includes a circular cross section tunnel, an arched section tunnel or various section shape tunnels or saps. The lining is generally formed in a way of first forming a lining frame by two anti-cut connection elements melted with studs, a reinforcing steel net banded by reinforcing steels and a steel plate and then spraying concrete into the frame. The invention combines the steel plate, the sprayed concrete to a whole structure to bear force, has improved bearing ability and stability than single reinforcing steel concrete lining, can be as support for new tunnel and as the reinforcement device for similar structure. The invention has the advantages of easy in quality guaranty, simple and quick in construction and high in synthetic effect.

The invention provides a low springback rate spraying and coating material for thermal-state blast furnace maintenance and a preparation method thereof. The spraying and coating material comprises the following raw materials in percentage by weight: 30-50% of synthetic mullite particles with the diameter of 5-0mm, 30-50% of A-level flint clay particles with the diameter of 5-0mm, 10-25% of synthetic mullite powder of 200-325 meshes, 0-15% of A-level flint clay powder of 200-325 meshes, 3-8% of aluminate cement, 2-7% of clay powder, 1-3% of silica micropowder of 2-5mu, 3-6% of aluminum oxide micropowder of 5mu, 0-0.3% of polyphosphate, 0-0.3% of metaphosphate, 0.5-3% of lignosulphonate calcium powder and 0-0.3% of organic fiber,The invention has the outstanding characteristics that the springback loss is small, waste of raw materials in the process of construction is reduced on one hand, and the start-up operation of the furnace is facilitated on the other hand; and the spraying and coating material provided by the invention meets the performance requirements on performances such as strength, scouring resistance, scouring and permeation resistance, rapid construction at 150-300 DEGC and the like, and is especially suitable for an unshaped refractory for thermal-state blast furnace lining maintenance. The invention has the outstanding characteristics that the springback loss issmall, waste of raw materials in the process of construction is reduced on one hand, and the start-up operation of the furnace is facilitated on the other hand; and the spraying and coating material provided by the invention meets the performance requirements on performances such as strength, scouring resistance, scouring and permeation resistance, rapid construction at 150-300 DEG C and the like, and is especially suitable for an unshaped refractory for thermal-state blast furnace lining maintenance.

In an exhaust control valve having a valve housing and a valve body rotatably contained in the valve housing, a transmission member is fitted to an outer end of the valve shaft and protrudes from the outside of the valve housing. A bearing bushing for rotatably bearing an external circumferential surface of the valve shaft by its internal circumferential surface and rotatably bearing an end face of the valve body by its end face is mounted in the valve housing. The valve body is urged by load from a thrust spring for achieving a pressure contact seal condition between the opposed end faces of the bearing bush and the valve body.

The invention discloses a lifting and transferring apparatus for paralytic patients and belongs to the field of medical nursing equipment. The lifting and transferring apparatus for paralytic patients comprises a framework, a cross beam, supports, a transverse moving mechanism, a longitudinal telescopic mechanism and a vertical elevating mechanism. The transferring apparatus can stably move along the length direction of a bed body via a gear rack mechanism and bearing guide rails; patient weight can be carried via a heavy-duty slide rail and the patient can move from the internal side of the bed body side surface toward the external side of the bed body; the patient can be lifted or put down via an electric capstan; transferring device structural stability and operation reliability can be improved; the transferring apparatus can be simply and conveniently operated; nursing workers are unnecessary for holding the patient up; and patient comfortableness is improved and labor intensity of the nursing workers is reduced.

This invention relates to an active vibration isolation installation based on electromagnetic and aerostatic floatation which is essential for the super-precision measurement and manufacture. It mainly consists of an isolation platform, an intermediate sleeve and a base. The isolation platform supports any object(s) placed on the platform and is supported by the intermediate sleeve. And the intermediate sleeve is supported on the base which is fixed on the ground. This invention uses the combination electromagnetic and aerostatic floatation to achieve large bearing capacity while excellent vibration isolation performance is maintained. This invention realizes automatic control of stiffness, using closed-loop speed control methods. It is therefore conclude that this invention can impose an excellent inhibitory action on the vibration originating from surroundings and the platform itself.

To provide building foundation structure formed with a soil improving body and raft foundation that can suppress weight increase of a soil improving body while achieving suppression of differential settlement and improvement of bearing capacity of the whole foundation and that can be applied to medium-rise buildings.

The invention discloses a sewer well lid and especially relates to a sewer well lid which automatically floats upward under a high flow condition, automatically resets under a small flow condition and is not plugged. The sewer well lid comprises an upper cover plate, a guide rod and a lower well base and is characterized in that a groove is arranged inside the lower well base; a guiding hole is formed in the groove; a plurality of flow-guiding slots are arranged on the upper cover plate; airtight air chambers are arranged between the flow-guiding slots; the average density of the upper cover plate and the guide rod is less than 0.9*103kg / m<3>; the guide rod passes through the guiding hole from the underside of the lower well base and is connected with the upper cover plate; at a use moment, the lower well base is poured in concrete floor and small flow water directly flows down from the flow-guiding slots of the upper cover plate and flows into a draining well along a wellhead; when the flow-guiding slots of the upper cover plate cannot meet the flow speed of high flow water, the upper cover plate floats in the lower well base, the upper cover plate is limited by the lowest end of the guide rod and water flows into the wellhead from a position between the upper cover plate and the lower well base; after the water flow is reduced, the upper cover plate descends and the upper cover plate enters into the groove of the lower well base under a guiding effect of the guide rod; and the practicability is strong.

The invention relates to a transmission mechanism of a closet type electric partition door, belonging to a manufacturing technology of architectural decoration hardware fittings. A double-layer upper rail and a transmission mechanism are assembled at the upper part of a partition door leaf, wherein the partition door leaf is hung over the transmission mechanism, closet wheels are assembled at the upper part and lower part of the partition door leaf, and a hand-operated switch, an inductive switch or a remote-control switch is used for directing the partition door leaf to slide leftwards and rightwards. The transmission mechanism is novel in design, reasonable in structure and high in bearing capacity, and is safe and reliable. The transmission mechanism comprises components such as the partition door leaf (1) and the like, and is characterized in that: a switch power supply box (11), a circuit controller (12), a motor (13) and a synchronous belt tension adjuster (14) are assembled on the double-layer upper rail (10) at the upper part of the partition door leaf (1); synchronous belt driving wheels (15) are assembled on the motor (13) and an output shaft of a worm and gear transmission case (13-1); a synchronous belt driven wheel (16) is assembled on an output shaft of the synchronous belt tension adjuster (14); and a synchronous belt (17) is assembled at the peripheries of the synchronous belt driving wheels (15) and the synchronous belt driven wheel (16).

The invention relates to a plastic cutting machine, which comprises a cutting machine main body (1), wherein the middle part of the cutting machine main body (1) is provided with a cutting table (2), the upper part of the cutting machine main body (1) is provided with a support plate (3), the support plate (3) is provided with a pressing mechanism, the lower end of the pressing mechanism is fixedly connected with a cutter holder (4), the lower end of the cutter holder (4) is provided with a cutter blade (5), the cutter blade (5) is positioned above the cutting table (2), and the exterior of the cutting machine main body (1) is provided with a safety control switch. The plastic cutting machine has the advantages that a large plastic product is cut by the cutter blade, so the dust is avoided, and the better environment-friendly effect is realized; the exterior of the cutting machine main body (1) is provided with the safety control switch, a worker operates the plastic cutting machine through the safety control switch, the injury is avoided in the cutting process, and the higher safety is realized; and the large plastic product is cut by the plastic cutting machine, the working efficiency is higher, and the structure is simpler.

The invention provides a pipe-jacking working well applicable to desert waterless sand area and a construction method. The pipe-jacking working well is characterized in that a plurality of bore pilesare circumferentially uniformly arranged around the circle center the working well to form the main protecting and stress structure of the working well, a crown beam is arranged at the top of each bored pile, each circular crown beam and the working well are of a concentric circle structure, a liner is located on the inner side of each bored pile and vertically arranged along the depth direction of the working well, hidden beams are embedded into each liner and arranged at intervals along the length direction of the liner from top to bottom, a bottom plate is located at the bottom of the working well, a well bottom reinforcing jet grouting pile is arranged below the bottom plate, and hole reinforcing jet grouting piles located at positions where jacking pipe joints enter and exit holes arearranged on the outer sides of the bored piles. The pipe-jacking working well has the advantages that soil stability during excavation can be guaranteed by the bored piles, and the bored piles can bear large counter force needed by pipe-jacking construction; the liners can increase sand stability among the piles and evenly transmits horizontal load to the bored piles.

The invention relates to a petroleum filtering device used for petroleum collection, and especially relates to a high-efficiency petroleum filtering device used for petroleum collection. The technical problem to be solved in the invention is to provide the high-efficiency petroleum filtering device used for petroleum collection, with the advantages of simplicity in operation, realization of double filtration of petroleum and good filtering effect in order to improve the quality of the petroleum. The high-efficiency petroleum filtering device used for petroleum collection comprises a baseboard, a left side plate, a collecting frame, a first petroleum outlet tube, a first valve and a fixed block; and the left side plate is arranged at the left side of the top of the baseboard in a bolt connection manner, and the lower portion of the right side surface of the left side plate is provided with the collecting frame in a bolt connection manner. Dual filtration of a filtering frame and a filter plate makes the petroleum filtering effect very good, and a first baffle plate and a second plate make an impurity baffle plate prevent impurities from falling into the collecting frame during the leftward and rightward movement of the filtering plate.

The invention discloses a compound type rotary supporting device for a machine tool round workbench, which comprises a workbench, a rotary main shaft, an axial static-pressure supporting component and a rolling bearing. The compound type rotary supporting device is characterized in that the upper part of the rotary main shaft is provided with an axial plane annular closed static-pressure round guide rail support which bears axial loads, the middle part of the rotary main shaft is provided with the rolling bearing which bears radial loads, and both the guide rail support and the rolling bearing form a static-pressure and rolling compound type rotary support; the closed static-pressure round guide rail support comprises an upper press ring, a middle spacing ring arranged below the upper press ring and a lower shell arranged below the middle spacing ring, and the upper press ring, the middle spacing ring and the lower shell are connected into a whole; the lower plane of the upper press ring and the upper plane of the lower shell form an upper sealing combination surface and a lower sealing combination surface with the middle spacing ring, and a pressure bearing surface of the guide rail support which corresponds to the rotary main shaft is provided with a static-pressure oil cavity; the rolling bearing is a rolling bearing of a cylinder roller or an equivalent combination of the rolling bearing. The compound type rotary supporting device has the advantages of large bearing capacity, high moving precision and long service life and has short rotary main shaft, simple and compact structure, low manufacturing and using cost, convenient maintenance and high supporting rigidity.

The invention belongs to the field of construction engineering, and relates to a three-dimensional continuous frame type reinforced concrete structure retaining wall. The three-dimensional continuous frame type reinforced concrete structure retaining wall comprises piles which are fixedly connected through a ground beam. Columns are fixedly connected to a base plate, the columns are in rigid connection through girders so that a frame can be formed, and a shingle is arranged on the outer vertical face of the frame. The three-dimensional continuous frame type reinforced concrete structure retaining wall is simple in structure, the frame type structure is adopted, a frame body is rooted into a stable foundation supporting layer, the lateral pressure of a side slope soil layer is dispersed through the girders and the columns, the overlarge local pressure of a wall body can be avoided, anti-sliding capacity, shear capacity and bearing capacity are enhanced, the stability and the durability of the retaining wall are guaranteed, the potential risks of engineering can be greatly reduced, and the three-dimensional continuous frame type reinforced concrete structure retaining wall is suitable for enclosing and retaining side slope soil mass in loose sandy soil, recent fill and soil piling and filling areas which can not be closely grained easily.

A bionic pectoral fin propelling device based on a planetary gear train, including a frame, a power source (1), a propelling part (2), left and right maneuvering parts (3), a fixed support plate (4), a movable support plate (5), a left pectoral fin (6), a right pectoral fin (7), a fish body (8), and a tail fin (9). The fixed support plate (4) and the movable support plate (5) are installed on the frame parallel to each other; the fixed support plate (4) is located in front of the movable support plate (5); and the left and right maneuvering parts (3) are located between the fixed support plate (4) and the movable support plate (5). The present invention solves the problem that the two pectoral fins are not synchronized, realizes variable speed propelling and left / right maneuvering, facilitates increasing the bearing capacity of the propelling device, and is particularly suitable in limited space applications.

The invention belongs to the field of structural engineering in civil engineering, in particular to a light composite structure jacket type offshore platform. The offshore platform comprises a light composite structure platform frame and a platform welded with the same. The platform frame comprises 3-8 platform main rods and a plurality of platform cross arms connected among the platform main rods. Platform oblique arms are disposed among adjacent platform main rods, the platform and the platform cross arms. Each platform main rod comprises an inner steel pipe and an outer steel pipe, and concrete is filled between the inner steel pipe and the outer steel pipe. Mutual action between steel and concrete is considered, and advantages of composite structure is fully utilized. Compared with traditional jacket type offshore platforms, the light composite structure jacket type offshore platform is better in performance, simple to construct, good in economical performance, and applicable to various offshore platform constructions such as drilling platforms, workover platforms and wind power generation platforms.

The invention relates to a prestressed pipe pile coated with an active material pile body. The prestressed pipe pile is characterized in that the prestressed pipe pile is coated with a geotechnical cloth bag in the whole pile length, the bottom end of the pile is provided with a precast enlarged pile tip, the bottom of the geotechnical cloth bag is fixed to the precast enlarged pile tip in a binding mode, an annular reinforcing rib body is arranged inside the geotechnical cloth bag, the bottom of the annular reinforcing rib body is fixedly connected with a connecting rib on the precast enlarged pile tip, a meshed annular constraint body is tightly clamped to the exterior of the geotechnical cloth bag, the portion between the prestressed pipe pile and the geotechnical cloth bag is filled with active materials, and after absorbing water and swelling, the active materials are tightened by the meshed annular constraint body to form block-shaped protrusions. According to the prestressed pipe pile coated with the active material pile body, the active material hydration swelling effect is utilized, the geotechnical cloth bag and the meshed annular constraint body with which the geotechnical cloth bag is coated are matched for shaping, and the performance of the pile body can be improved; after the prestressed pipe pile is coated with the active material pile body, pile body concrete can be prevented from being corroded by underwater, and the higher technical and economic benefits are obtained. The invention further discloses a construction method of the pile body.

The invention discloses a precast concrete sandwich cladding wall panel provided with ribs. The precast concrete sandwich cladding wall panel sequentially comprises an inner vane board, a thermal insulation layer and an outer vane board from inside to outside, wherein the thermal insulation layer is arranged between the inner vane board and the outer vane board, and the inner vane board, the thermal insulation layer and the outer vane board are integrally connected through pulling parts; the inner vane board comprises a flange plate and the ribs arranged on the flange plate, and the ribs are arranged on one side, facing the outer vane board, of the inner vane board. In the embodiment, the inner vane board is designed to be in a ribbed form, by comparison with common precast concrete sandwich cladding wall panels with inner vane boards being rectangular sections, the rigidity, the strength, the thermal insulation efficiency, the durability performance and the fireproof performance of the wallboard are guaranteed, the thickness of the wall panel is reduced, the effective use space of a building is increased, the use amount of concrete is reduced, the self-weight of the wall panel is reduced, the safety and the seismic performance of connected nodes are improved, and the precast concrete sandwich cladding wall panel is applicable to thermal insulation engineering of external walls of the building.

The invention relates to a prefabricated combined beam and column node member. The prefabricated combined beam and column node member comprises a cross beam and a vertical column which are intersected, wherein the cross beam as well as the vertical column comprises an ECC (engineered cementitious composite) material, longitudinal bars and stirrups, and a rectangular region where the cross beam and the vertical column are intersected and superposed is in the transverse width of A and the longitudinal height of B; the cross beam is in the transverse width of 2B plus A and the longitudinal height of B, and the longitudinal bars penetrate the full length of the cross beam and extend out of two beam ends by 10cm-15cm; and the vertical column in the longitudinal height of 2A plus B, and the longitudinal bars penetrate the full length of the vertical column and extend out of the two column ends by 10cm-15cm. The prefabricated combined beam and column node member disclosed by the invention is the prefabricated member which is formed by casting the steel bar-reinforced ECC material and is applied to an anti-seismic key part, in particular to a key node. Compared with an ordinary reinforced concrete member, the prefabricated combined beam and column node member can significantly improve the ductility and the anti-seismic performance of the structure, greatly reduce the use of the stirrups at the node under the condition of meeting the anti-seismic requirement and solve the difficult problem in construction caused by too dense stirrups in a node region.

The invention discloses a rotary insulating ladder for distribution line live working, which comprises a platform connecting seat frame, an insulating platform, a pair of platform support rods, a vertical ladder, a pair of vertical ladder brace rods, a small vertical ladder platform, a hoop device, a rotary device and a safety device. Different from the traditional insulating platform, the rotary insulating ladder for distribution line live working of the invention has large action radius (360-degree rotation), high bearing capacity, vertical working range which can be larger than human body height, good stability, convenient installation and flexible operation, and is incomparable with other insulation platforms. The rotary insulating ladder widens the working range of live working, makes the region on which the live working can not be performed safely and conveniently realize live working, greatly improves the safe operation of the line, and reduces and avoids the power failure construction on the regions.

The invention discloses a series electromagnetic-elastic foil combined bearing integrated structure, which comprises a bearing base 17, wherein an electromagnetic bearing 1 is arranged in the bearing base 17; the electromagnetic bearing 1 is provided with a magnetic pole 6; the electromagnetic pole 6 is wound with a coil 7; the electromagnetic bearing 1 is axially provided with a left end cap 2 and a right end cap 3 which tightly press the electromagnetic pole 6; the left end cap 2 and the right end cap 3 are provided with grooves 12 along the circumferential direction; and a top elastic foil 13 and a bottom elastic foil 14 are arranged in the grooves 12. A rotor is suspended by the electromagnetic bearing 1, a lubricating gas film is arranged for supporting the rotor on the surfaces of the elastic foil 5 and a rotor shaft neck 4 when the rotor is accelerated to reach a takeoff speed, and when the electromagnetic bearing is in an idle state, the rotor can be independently supported by the elastic foil bearing 5. The series electromagnetic-elastic foil combined bearing structure has the characteristics of low power consumption, large bearing force, high precision and high stability.

The invention relates to the technical field of piling construction, and mainly relates to a double-tube-sinking and inner-tube-drawing bored cast-in-place pile construction method and application. The construction method adopts an eccentric moment-adjustable vibrating hammer, a pile gripper, inner tubes, outer tubes and a piling rack or a hoisting crane. The construction method includes steps that the inner tubes and the outer tubes are clamped by the pile gripper at first, the vibrating hammer vibrates and stops vibrating after sinking to the required depth, a pile clamping method is changed so that the pile gripper only clamps the inner tubes, a winch is started so that the vibrating hammer draws the inner tubes in a vibration-free state until the inner tubes are thoroughly drawn out, soil in the inner tubes cannot be poured out when the inner tubes are statically drawn due to effects of friction force, then the piling rack or the hoisting crane moves so that the inner tubes are separated from openings of the outer tubes, the vibrating hammer is started to vibrate, the soil in the inner tubes is continuously poured out in a vibration state until the total soil is poured out, reinforcement cages are placed in the outer tubes sunken into the soil, concrete is fully filled in the reinforcement cages, finally, the outer tubes are clamped by a fixture, the vibrating hammer is started, the outer tubes are drawn out by the aid of the vibration effect of the vibrating hammer, and simultaneously, a pile is formed. The double-tube-sinking and inner-tube-drawing bored cast-in-place pile construction method and the application have the advantages that the structure is novel, and construction efficiency is high.

A combined roller and retainer assembly for a planetary gear mechanism, including a planetary gear and a support shaft for supporting the planetary gear, includes a roller retainer (1) and a plurality of rollers (2) and is adapted to be interposed between the planetary gear and the support shaft for supporting the planetary gear and the support shaft through the rollers (2). The roller retainer (1) includes a pair of annular portions (103, 104) spaced in an axial direction from each other and a plurality of pillars (105) extending between respective outer peripheral edges of the annular portions (103, 104) and spaced in a direction circumferentially of the annular portions (103, 104). The rollers (2) are accommodated within respective pockets (106) each defined between the neighboring pillars (105). One or both of the annular portions (103, 104) are provided with roller retaining pawls (107) of a bent shape in respective portions of inner peripheral portions of the annular portions (103, 104) at a location aligned with the neighboring rollers (2) for constraining the rollers (2) from separating in a direction radially inwardly of the roller retainer (1). The roller retaining pawls (107) are annealed or treated not to be carburized to have a hardness about equal to or lower than the hardness of the roller retainer (1) and equal to or lower than Hv 400.

The invention relates to the technical field of modification of braiding wicker, in particular to a smoothness and toughness pre-treating agent for braiding wicker and a preparation method thereof. The raw materials of the smoothness and toughness pre-treating agent for the braiding wicker comprise, by weight, 0.01-0.02 part of borax, 10-12 parts of silica sol with the solid content of 20-25%, 1-2 parts of starch ether, 6-8 parts of clarification limewater, 0.2-0.3 part of secondary alkyl sodium sulfonate, 0.01-0.02 part of sodium hyaluronate and 40-50 parts of water. The smoothness and toughness pre-treating agent has good permeability and is seeped into wicker fibers through high pressure when used, the clarification limewater can assist the silica sol, the starch ether and other components in adhering to plant fibers, and therefore the strength and toughness of the wicker are increased more efficiently, and the braiding performance is improved. In combination with other components, the wicker treated through the smoothness and toughness pre-treating agent is antimicrobial, resistant to corrosion and smooth and holds water, and wickerwork is longer is service life, higher in skin-friendly sense, higher in weight bearing capacity and wider in use range.

The invention discloses a sandy saline and alkaline land soil remediation device. The sandy saline and alkaline land soil remediation device comprises a water storage sponge, a bottom plate, a water suction sponge, a shell and a top plate. A separation plate is arranged at the top end in the shell, and a plurality of mounting holes are evenly formed in the separation plate and the bottom of the shell at equal intervals. According to the sandy saline and alkaline land soil remediation device, the water suction sponge is arranged at the position, between an upper pressing plate and a lower pressing plate, in the shell, the water storage sponge is arranged at the position, above the separation plate in the shell, plants are planted on soil above the shell, the water suction sponge can be utilized for absorbing and draining underground water on the deep layer of the soil, it is avoided that underground water where salt is dissolved rises to the surface of the soil through the capillary action to evaporate to form saline and alkaline land, rainwater permeating into the shell can be collected, the interior of the shell and a drainage can be collected, and the service life of the device is prolonged. The wettability of the soil is improved through the water storage sponge arranged above the separation plate, growth of the planting is convenient, the soil on the upper layer is managedand remediated, and therefore the effect and efficiency of saline and alkaline land management are improved.

The invention discloses a loess cave dwelling reinforcing device. The loess cave dwelling reinforcing device comprises cave dwellings, wood arch frames and steel strips, wherein a ventilation opening is formed in the arch top of each cave dwelling, an air catcher is mounted on each ventilation opening, dehumidification sterilizers are arranged in the cave dwellings, the wood arch frames are mounted in the cave dwellings, collapse warners are fixed on the wood arch frames, the steel strips are laid on the central axes of the tops of the wood arch frames, and the bottoms of the wood arch frames are fixed on base stones and are fixed at the bottoms of the cave dwellings through anchor rods. The loess cave dwelling reinforcing device has the advantages that the loess cave dwelling reinforcing device is simple in structure, reasonable in design, low in manufacturing cost, safe, reliable and suitable to popularize and use; by combining loess cave dwelling distribution characteristics with local economic conditions, the loess cave dwelling reinforcing device applicable to the countryside is used for improving bearing capacity and deformation capacity of the cave dwellings; a plurality of wood arch frames are arranged in the cave dwellings, the steel strips are mounted on the tops of the wood arch frames, and a soil mass between each two adjacent wood arch frames is transferred in soil particles due to normal stress to form load-bearing arches resistant to vertical tension, so that vertical displacement of the arch top soil mass is benefited.

The invention relates to a sliding frame, in particular to a multifunctional guide sliding frame, mainly comprising a sliding frame rod and a multifunctional guide pulley, wherein the sliding frame rod and the multifunctional guide pulley are two independent parts; the lower frame body of the multifunctional guide pulley is arranged on a frame rod of the sliding frame rod; and the sliding frame rod and the multifunctional guide pulley are in clearance fit. The multifunctional guide sliding frame in the invention can greatly lower friction resistance in cable laying, and rapidly and conveniently finish the field adjustment requirement of large weight cable laying, thus improving laying quality and efficiency; compared with the traditional plastic sliding frame, the multifunctional guide pulley can conveniently and rapidly move on the sliding rod from left to right so as to regulate the optimal entering position to a well head; and the sliding frame can rotate 180 degrees at a fixed point for fixing so as to regulating the optimal position of the cable laying.