9results about How to "Simple construction operation" patented technology

The utility model discloses a pitched roof concrete vibrating and smoothing device, which belongs to the technical field of building construction appliances and comprises a mounting frame, two face smoothing wheels are arranged below the mounting frame and are arranged in parallel front and back, and a vibrating plate is arranged between the two face smoothing wheels. A lifting mechanism used for driving the vibrating plate to work is arranged above the vibrating plate, a driving mechanism used for driving the noodle collecting wheel to rotate and the lifting mechanism to work is further arranged on the mounting frame, a telescopic rod is arranged on the mounting frame through a connecting frame, and an operating handle is arranged at the top end of the telescopic rod. According to the concrete surface finishing machine, the motor is used for driving the two surface finishing wheels to roll on the concrete surface to carry out concrete surface finishing operation; and meanwhile, the vibrating plate is driven to perform surface vibrating operation on the cement surface, so that the concrete surface is vibrated and polished, the construction operation is simple, the progress of vibrating and surface finishing of workers is greatly improved, the construction period is guaranteed, the labor cost is saved, the concrete appearance quality is improved, and very high practicability is achieved.

The construction guardrail comprises a first supporting assembly and a second supporting assembly which are oppositely arranged, storage frames located on the first supporting assembly and the second supporting assembly are connected through a telescopic net, and the storage frames can be rotationally installed on the first supporting assembly or the second supporting assembly in the horizontal direction. The first supporting assembly and the second supporting assembly are each provided with a plurality of height adjusting assemblies capable of adjusting the distance between the lower end face of the first supporting assembly and the ground, and when the two construction guardrails are in butt joint, a connecting assembly used for detachably connecting the first supporting assembly and the second supporting assembly together is arranged between the first supporting assembly and the second supporting assembly which are in butt joint. The length of the construction guardrail and the position angles among the first supporting assembly, the telescopic net and the second supporting assembly can be flexibly adjusted, the distance between the lower end face of each supporting assembly and the ground can be flexibly adjusted according to the concave-convex condition of the ground, and therefore the stability of the supporting assemblies during placement is guaranteed. When two construction guardrails are connected in a butt joint mode, construction operation is simple, and convenience and high efficiency of guardrail construction or disassembly are guaranteed.

The utility model belongs to the field of municipal engineering, and particularly relates to a step installation marking positioning device which comprises a grab rail, a lower spring telescopic rod is fixed to one side of the bottom end of the grab rail, and a supporting horizontal rod is fixed to the other side of the bottom end of the grab rail. An arc-shaped rod A is fixed between the two middle lower spring telescopic rods; a hoop is fixed to the lower portion of the grab rail, four upper spring telescopic rods are hinged to one side of the hoop, the other side of the hoop is connected with a supporting inclined rod, and the supporting inclined rod and a supporting horizontal rod are fixed together. An arc-shaped rod B is fixedly connected between the outer ends of the supporting horizontal rods, and rollers are outwards arranged at the two ends of the arc-shaped rod B; the upper spring telescopic rod and the two protective covers are fixed together, the protective covers cover the roller, hollowed-out holes are formed in the periphery of the surface of the roller, the surface of the roller is coated with a coating layer, and the lower spring telescopic rod and the roller are rotationally connected together. According to the device, one-time positioning and paying-off can be conducted on the installation position of the step outside the well chamber, the working efficiency of measurement and paying-off before the step is installed is improved, and the problem that measurement and positioning paying-off of the step in the well chamber are difficult is solved.

The utility model provides a lamp pole with base shield, including pole body and reinforcing base, still include base shield, base shield is respectively with pole body and reinforcing base matching hoop sleeve setting, and completes the sealing waterproof of base shield to pole body and reinforcing base two position, base shield includes first outer cover and second outer cover of split type buckling splicing through buckling structure. The utility model provides lamp pole convenient to dismount, has solved the technical problem of the phenomenon such as rust, cracking of the buckling structure in the prior art exposed to the outside and further influence the protection function of the shield, and realizes the multistage sealing waterproof of lamp pole, improves the use safety of lamp pole, prolongs its life.

The utility model provides a through-wall pipeline plugging device which comprises a functional cover arranged at the tail end of a working pipe, an operation opening is formed in the lower portion of the functional cover, a control valve is installed at the operation opening, a liquid storage cavity is formed between the functional cover and an inner sleeve, and the liquid storage cavity communicates with the operation opening. The functional cover comprises an arc-shaped plugging plate, a top plate is arranged between each end of the upper portion of the plugging plate and the inner sleeve, an end plate is arranged at the end, away from the working pipe, of the plugging plate, and the gap between the plugging plate and the inner sleeve is gradually increased from the side close to the working pipe to the side away from the working pipe. The through-wall pipeline plugging device is simple in structure and reasonable in design, the functional cover is welded to the tail end of the working pipe, so that a closed space is formed in the functional cover, when the through-wall pipeline plugging device is welded, leaked water flow is allowed to be discharged through the operation opening, and after the plugging device is welded, the operation opening is closed through the control valve, so that the sealing effect is achieved. And the construction operation is simple, and time and labor are saved.

This invention relates to the field of coal seam permeability enhancement technology, and discloses a method and apparatus for multiple fracturing of low-permeability coal seams using a combination of electrical pulses and supersaturated ammonium carbonate solution. The method includes: Step 1, drilling a single-hole long borehole in the coal seam, and then arranging an integrated discharge device within the borehole; Step 2, injecting a high-pressure supersaturated ammonium carbonate ion solution into the borehole, using a data monitoring and control center system to monitor the data within the borehole and control the integrated discharge device to release electrical pulses into the high-temperature, high-pressure conductive medium filling the borehole, thereby fracturing the coal seam and releasing gas; Step 3, after the electrical pulses are repeated 6-8 times, the discharge is stopped, the electrolyte solution is drained, and the integrated discharge device is removed. The single-hole long borehole is then connected to a gas extraction pipeline for gas extraction. This invention is safe, highly efficient, and has wider applicability, possessing urgent practical significance and important technical value.

The utility model discloses a glass fiber reinforced plastic cable bridge with a positioning function, and particularly relates to the technical field of cable bridges, the glass fiber reinforced plastic cable bridge comprises two bridge main bodies, a cover plate is mounted at the top end of each bridge main body, a connecting assembly and a plurality of positioning mechanisms are mounted in each bridge main body, and the connecting assembly is mounted on one side of each positioning mechanism; the connecting assembly comprises a first fixing plate, the first fixing plate is fixedly connected with the interior of the bridge body, two supporting plates are fixedly connected to one side of the first fixing plate, two-way screws are rotationally connected into the supporting plates, and hexagon nuts are fixedly connected to the outer sides of the two-way screws. By arranging the connecting assembly and the positioning mechanism, dual fixation can be realized, so that the two bridge main bodies can be stably connected, loosening caused by vibration or external force is reduced, meanwhile, side-by-side positioning arrangement can be performed during installation, cable cross winding can be reduced, and the risk of insulating layer damage caused by mutual extrusion of cables can be reduced.

The utility model discloses a flexible paving template for a coal mine, which belongs to the technical field of paving construction and comprises a plurality of flexible cloth bags connected with one another, each flexible cloth bag is a hollow bag body, the cross section of each bag body is of an isosceles trapezoid structure, the top of each flexible cloth bag is provided with a pouring hole, and each pouring hole extends inwards to form an inner flanging; a center formwork supporting pipe is vertically installed in the center of the flexible cloth bag, side formwork supporting strips are symmetrically arranged on the two sides of the flexible cloth bag, transverse formwork supporting strips are arranged on the top of the flexible cloth bag, and the side formwork supporting strips and the transverse formwork supporting strips are arranged in a staggered mode. The reinforcing steel bars penetrate through the through holes in the central formwork supporting pipe and the side formwork supporting strips to fix the flexible cloth bag on the road surface; the transverse formwork strips are used for connecting the adjacent flexible cloth bags. Compared with the prior art, the template can be tightly attached to a bent and uneven road, adapts to complex road conditions of a coal mine roadway road, and has low requirement on the flatness of a pavement before paving due to the fact that the template does not need to be removed, so that the construction steps are effectively simplified, and the construction labor intensity is reduced.

The utility model provides an assembly type concrete well and pipeline connecting system which comprises a concrete well, a pipeline and a sealing assembly, a preassembling hole is formed in the side wall of the concrete well, the preassembling hole is at least partially arranged outside the pipeline in a surrounding mode, and the sealing assembly is located between the inner wall of the preassembling hole and the outer wall of the pipeline; the sealing assembly comprises a limiting ring and a sealing ring, and the limiting ring is coaxially arranged outside the pipeline in a sleeving mode and fixedly connected with the pipeline; the sealing ring is coaxially arranged outside the pipeline in a sleeving mode and abuts against the pipeline. The outer diameter of the sealing ring is larger than or equal to that of the limiting ring, and the sealing ring is located on the upstream side of the limiting ring. According to the utility model, the installation accuracy of the pipeline can be ensured, and plugging materials do not need to be filled later, so that the construction operation is simplified, and the construction efficiency and the construction quality are effectively improved.