46results about How to "Protect the construction environment" patented technology

The invention provides a movable roof expansion bolt punching device, which comprises a base, wherein the lower part of the base is provided with a wheel; one side of the base is provided with a handrail; the base is provided with a support tube; and the top of the support tube is provided with an electric drill. Due to the adoption of the movable roof expansion bolt punching device, the working efficiency of roof punching is increased, the construction safety is ensured, the punching accuracy is increased, adaptation to a dark construction environment can be realized, dust is prevented from falling off, and the construction environment is protected.

The invention discloses a water supply and drainage device for a deep foundation pit and a construction method based on the water supply and drainage device. The water supply and drainage device comprises a water collecting sleeve and a water suction pump, wherein the water suction pump is placed in the water collecting sleeve; the water collecting sleeve comprises a steel sleeve and a reinforcing bar grid; the reinforcing bar grid is arranged at the lower end of the steel sleeve and is integrally connected with the steel sleeve in a welded manner; the steel sleeve at the upper end of the water collecting sleeve is positioned in structural concrete; the reinforcing bar grid on the lower portion of the water collecting sleeve is positioned in a base below a structural bottom plate; and a plurality of drainage tubes are arranged on the periphery of the base. Compared with the prior art, the water supply and drainage device for the deep foundation pit and the construction method based on the water supply and drainage device have the advantages that a structural reserved hole is omitted, the structural waterproofing and the construction quality are greatly improved, the construction period is shortened, and the cost is reduced.

The invention discloses modified low-carbon raw soil cement and a preparation method thereof. The raw soil cement is prepared from the following raw materials by weight percentage: 40-60% of clay, 20-45% of cement, 0-15% of gypsum, 0-12% of expanding agent and a water reducing agent which is 1-2wt% of the above raw materials; the preparation method can reduce the carbon emission, saves resources and energy, is an energy-saving and environment-friendly material, is different from the existing building materials, has no influence on environment when being discarded, can enter a natural circulation system when being crushed and dispersed in soil, can be utilized in quantity or can contain poor-quality soil, and has good crack resistance and water resistance.

The invention discloses a wall grinding device for decoration engineering, comprising a main box, a handle is fixed on the outer wall of the main box, a motor is fixed on the inner bottom of the main box, and an output shaft of the motor penetrates the main box The bottom of the handle is fixed with a polishing plate, the outer wall of the main box is fixed with a protective cover, the upper end of the main box is provided with a pumping mechanism, the side wall of the handle is fixed with an exhaust box and a dust box, the A dust removal mechanism and a dust collection mechanism are respectively provided inside the exhaust box and the dust collecting box. The advantage is that the dust generated by cleaning will accumulate inside the protective cover, so that it will not escape at will, which can protect the construction environment and the safety of users, and the dust generated by processing can be taken away in time without affecting processing. When the overall position of the equipment is changed, it will not cause dust leakage, which is convenient for the use of continuous replacement.

The invention discloses wall surface grinding equipment for a decoration project. The wall surface grinding equipment comprises a main machine box, a grip is fixed to the outer wall of the main machine box, a motor is fixed to the inner bottom of the main machine box, an output shaft of the motor penetrates through the bottom of the main machine box and is fixedly provided with a grinding plate, a protective cover is fixed to the outer wall of the main machine box, an air pumping mechanism is arranged at the upper end of the main machine box, an air exhaust box and a dust collection box are fixed to the side wall of the grip, and a dust removal mechanism and a dust collection mechanism are arranged in the air exhaust box and the dust collection box correspondingly. The equipment has the advantages that dust generated by cleaning can be accumulated in the protective cover, and therefore dust cannot escape randomly, the construction environment can be protected, the safety of a user can be protected, dust generated by machining can be taken away in time, machining cannot be affected, meanwhile, when the position of the whole equipment is replaced, dust leakage cannot be caused, and continuous transposition use is convenient.

The invention discloses a prefabricated block for a bridge expansion joint and a using method thereof. The prefabricated block comprises a steel plate, lifting hooks, a prefabricated slab, a frameworkand a socket, wherein the lifting hooks are symmetrically arranged on the two sides of the prefabricated slab, the steel plate is fixedly connected with the framework, the lifting hooks rare fixedlyconnected with the framework, the socket is located in the middle of the cross section of the prefabricated slab, one ends of the lifting hooks penetrate through the positions near the upper parts ofthe side surfaces of the prefabricated slab, and the other ends of the lifting hooks penetrate through the positions near the lower parts of the side surfaces of the prefabricated slabs, the lifting hooks are of inclined structures on the side surface of the prefabricated slab, and the lower surface of the steel plate coincides with the upper surface of the prefabricated slab. The prefabricated block can be reused, the working efficiency is high, waste materials are prevented from blocking the expansion joint, the construction environment is protected, the flatness of the expansion joint afteruse is high, and the phenomenon that the vehicle jumps when the vehicle passes through the expansion joint is avoided, and due to the fact that the rigid processing mode of the prefabricated block isadopted at the expansion joint, the expansion joint can have a good flatness and initial compaction degree when a paver passes through the expansion joint.

The invention discloses a device for replacing a loop steel wire rope of a cold rolled galvanizing production line. The device comprises a stable frame and two turntables, and is characterized in that the stable frame comprises a steel base plate; two steel wire rope roller rotating frames which are linearly and symmetrically arrayed front and back are arranged on the steel base plate; each steel wire rope roller rotating frame is provided with two oppositely arranged brackets with trapezoid sections in an erecting manner; the two turntables are respectively provided with turntable shafts (21); a second bearing (34) is mounted at one end of each turntable shaft; a cranking handle (23) is arranged at each of two ends of a turntable connection rod; therefore, the cranking handles (23) are rotated to drive the second bearings (34) and third bearings (35) to enable steel wire rope roller shafts (41) to rotate. The device for replacing the loop steel wire rope of the cold rolled galvanizing production line and a use method of the device have the advantages that the loop steel wire rope replacement device is simple in structure and convenient to manufacture and use, the working efficiency is improved, the labor intensity of an operator is relieved, and the number of operators is reduced.

The invention discloses a basement shear wall automatic spraying maintenance system and a construction method, the basement shear wall automatic spraying maintenance system is composed of a water supply system, a spraying system and an intelligent control system, the water supply system is composed of a sump, a reservoir and a sedimentation tank; the spraying system adopts a movable structure; the intelligent control system controls the total duration and waiting time of spraying circulation of the spraying system through the power switch. According to the technical scheme, the automatic spraying system is easy to install and maintain and easy to operate, the labor productivity is greatly improved, the structure in the concrete curing period is always kept in a wet state, the early strength of the concrete rises rapidly under the good curing condition, the concrete has obvious effects of improving the early strength of the concrete and preventing the concrete from generating shrinkage cracks.

The invention discloses a water supply and drainage device for a deep foundation pit and a construction method based on the water supply and drainage device. The water supply and drainage device comprises a water collecting sleeve and a water suction pump, wherein the water suction pump is placed in the water collecting sleeve; the water collecting sleeve comprises a steel sleeve and a reinforcing bar grid; the reinforcing bar grid is arranged at the lower end of the steel sleeve and is integrally connected with the steel sleeve in a welded manner; the steel sleeve at the upper end of the water collecting sleeve is positioned in structural concrete; the reinforcing bar grid on the lower portion of the water collecting sleeve is positioned in a base below a structural bottom plate; and a plurality of drainage tubes are arranged on the periphery of the base. Compared with the prior art, the water supply and drainage device for the deep foundation pit and the construction method based on the water supply and drainage device have the advantages that a structural reserved hole is omitted, the structural waterproofing and the construction quality are greatly improved, the construction period is shortened, and the cost is reduced.

The invention provides a dry-soil-removed reinforced concrete screw pile forming device. The dry-soil-removed reinforced concrete screw pile forming device comprises a steel mould pipe, wherein the steel mould pipe penetrates through a base of a piling machine, and is provided with an external helicoid, a rotating power head is arranged at the upper end of the steel mould pipe, a cross-shaped connector is arranged at the lower part of the steel mould pipe, a steel hoop is welded to the top end of the steel mould pipe, a notch is formed at one end of the steel hoop, and is matched with the cross-shaped connector, clamps are arranged between the steel hoop and a base of the rotating power head, and can be connected with each other to form a whole, and an auxiliary rotating power device is arranged at the middle part of the steel mould pipe. A pile forming method comprises the following steps of: firstly, arranging the steel mould pipe in place, starting the power head to screw the steel mould pipe into a soil layer, starting the auxiliary rotating power device to a designed elevation in the case that the steel mould pipe enters a hard soil layer, completely removing soil in the steel mould pipe, putting a reinforcing cage into the steel mould pipe, grouting and filling concrete into the steel mould pipe, and inversely rotating the power head to check height of the concrete in the steel mould pipe so as to ensure dimension of the external helicoids of the pile until the steel mould pipe gets away from the soil layer, so that a screw pile is formed. The dry-soil-removed reinforced concrete screw pile forming device and the pile forming method provided by the invention have the advantages of high bearing capacity, high pile forming quality, environment friendliness and energy-saving performance, and is particularly applicable to a deep soft soil layer and a flat-bottomed screw pile.

The invention relates to an electric rust removing machine, which comprises a machine body and a machine head, wherein the machine body is fixedly connected with the machine head; the machine body isinternally provided with a speed regulating motor, a speed reducer and a sound insulation cotton; the output shaft of the speed regulating motor is connected with the speed reducer; the sound insulation cotton is attached to the inner wall of the machine body; a transmission mechanism is arranged in the machine head; a rust removing wheel is arranged below the machine head, the transmission mechanism is connected with the speed reducer and the rust removing wheel, a downward protective cover is arranged outside the rust removing wheel, the width of the protective cover is less than the width of the rust removing wheel, the upper part of the machine body is provided with a control switch, the control switch is electrically connected with the speed regulating motor, a scraper is arranged below the machine body, the scraper is rotatably connected with the lower part of the machine body, the scraper is at an acute angle with the rear of the machine body, the scraper is rotated to the maximum position, and the distance between the scraper mouth and the machine body is less than the distance from the bottom of the rust removing wheel to the machine body. The machine is simple in structure, convenient to use, can effectively remove rust, can collect rust, is low in noise when in use, and is beneficial to protecting the construction environment.

The invention discloses a rubber check dam capable of being recycled and relates to a check dam capable of being recycled. The invention aims to solve the technical problem that an existing check damcannot meet a joint demand of low transportation and construction costs, short construction period, little maintenance and recycling. The combined rubber check dam capable of being recycled is composed of an integrated vertical rubber bag and a horizontal rubber curtain which are anchored, connected and fixed. Compared with a structure of a conventional check dam, the rubber check dam is simple instructure, the needed manpower and construction hours can be reduced greatly and the transportation and construction costs are lowered. A main body is of a flexible soft shell structure, so that themain body is less affected by freeze thawing erosion. The rubber check dam is simple in construction operation, the construction technique is easily mastered, the construction quality is easily ensured, and the construction efficiency is improved greatly. After exerting benefits, the rubber check dam can be exhausted and taken away for other construction. The rubber check dam can be recycled, andis suitable for being popularized in a large range. The rubber check dam is applied to the field of conservation of water and soil.

The invention discloses a prefabricated member check dam and a preparation method and a using method thereof in order to solve the problem that an existing check dam cannot meet the joint requirementsof stability, convenient construction, little investment and universality at the same time. The prefabricated member check dam is composted of a horizontal prefabricated member and a vertical prefabricated member which are integrated; and the top end of the vertical prefabricated member is provided with an overflow port. Compared with a whole grouted rubble structure, man hours of construction are shortened, the needed manpower is extremely little, and the construction quality is guaranteed easily; and constructing operation is easy, the construction technology is easy to master, the construction efficiency is greatly improved, and the prefabricated member check dam is suitable for large-range popularization. The prefabricated member check dam is applied in the water and oil conservationfield.

The invention discloses a prefabricated member check dam and a preparation method and a using method thereof in order to solve the problem that an existing check dam cannot meet the joint requirementsof stability, convenient construction, little investment and universality at the same time. The prefabricated member check dam is composted of a horizontal prefabricated member and a vertical prefabricated member which are integrated; and the top end of the vertical prefabricated member is provided with an overflow port. Compared with a whole grouted rubble structure, man hours of construction are shortened, the needed manpower is extremely little, and the construction quality is guaranteed easily; and constructing operation is easy, the construction technology is easy to master, the construction efficiency is greatly improved, and the prefabricated member check dam is suitable for large-range popularization. The prefabricated member check dam is applied in the water and oil conservationfield.

The present invention relates to the technical field related to construction machinery, in particular to a slotting device for building interior decoration, which includes an organism, a slotting assembly, a grinding assembly, a driving assembly, a dust collection assembly and a height adjustment assembly. The two output ends of the driving assembly are respectively It is connected with the slotting assembly and the grinding assembly. The slotting assembly includes a vertical slotting disc, which is rotatably mounted on the bottom of the machine body. The grinding assembly includes a vertical grinding disc. There is a dust-absorbing head, which is fixedly installed on the bottom of the machine body. The height adjustment assembly includes a bottom plate that can be lifted vertically. There are several slotted discs and grinding discs. The top of the machine body is hingedly provided with a push handle. The equipment shown improves the accuracy of slotting, reduces labor intensity, and can adjust the number and size of slotting disks according to requirements, which improves the practicability of the equipment. The dust suction component can collect the dust generated during slotting and grinding. The construction environment is protected.

The invention discloses a carbonaceous rock roadbed structure and a construction method thereof, comprising paving a flake layer on the upper part of the original soil layer of the roadbed, and paving a crushed stone layer, a carbonaceous rock layer, an improved composite soil roadbed and a pavement structure layer on the flake layer in sequence , the subgrade slope is evenly sprayed with modified composite anti-seepage curing agent; the bottom surface of the flake layer is a slope inclined to the drainage side, and the top of the flake layer is a stepped horizontal slope; the top surface of the gravel layer is higher than the water level line, The top surface of the stone layer is a slope inclined to the drainage side; the slope of each layer of the carbonaceous rock layer is a slope inclined to the drainage side, and the top surface of the carbonaceous rock layer is a horizontal slope; the carbonaceous rock subgrade structure also includes a drainage system. The present invention inhibits the disintegration and softening of carbonaceous rock by modifying the composite anti-seepage curing agent layer, improving the composite soil road bed, the crushed stone layer and the flake layer, improves the waterproof performance, ensures the strength and stability of the roadbed, improves the quality of the roadbed, and at the same time Make full use of carbonaceous rock and other waste materials, and improve the utilization rate of soil resources.

The invention discloses a steel beam structure capable of being replaced due to earthquake damage. The steel beam structure comprises a combined steel beam and a combined floor slab connected with the combined steel beam, wherein the combined steel beam comprises a first end part steel beam, a first energy dissipation section steel beam, a middle section crossing steel beam, a second energy dissipation section steel beam and a second end part steel beam which are sequentially connected, the first end part steel beam and the second end part steel beam are respectively connected with end posts at the two sides, and all the steel beams are an I beam respectively and are easy to repair. Meanwhile, the repair cost is low, the construction period is short, and the steel beam structure is less restricted by climatic conditions.