35results about How to "Will not affect stability" patented technology

The invention relates to a motor operation apparatus of dual-isolated switch, comprising motor, bat-typed plate, moving plate and gear, whose characteristics is: motor connected to moving plate through gear group will drive moving plate rotating , a on the moving plate will orderly match with notch the first and second bat-typed plate to drive them revolving, and the first and second bat-typed plate are connected separately to operating arm of the first and second separated dual-isolated switches through rotating shaft . The whole structure seams simple and compact, by toggling notch of bat-typed plate through to control the switch and the switch is locked by bat-typed plate and the circular edge of. In addition, the whole operation is clear and under stainable because that moving plate toggles the two bat-typed plate separately which is firstly to the first dual-isolated switches and then the second one and the opposite operation to close the switches, just adapts to people's custom.

The invention discloses a hard rock tunnel construction method based on water power cutting. The hard rock tunnel construction method based on the water power cutting is characterized by constructing multiple tunnel sections from back to front along the longitudinal extending direction of a tunnel. When any one tunnel section is constructed, the process is as follows: 1, surrounding rock classification advanced detection; 2, construction parameter confirmation, wherein the confirmed construction parameters comprise cutting parameters of a water power cutting machine and split force of a hydraulic splitter; 3, current constructed tunnel section construction: constructing multiple cutting sections of the current constructed tunnel sections from back to front along the longitudinal extending direction of the tunnel, wherein when any one cutting section is constructed, the process is as follows: construction preparation, water power cutting, hydraulic splitting and rectangular cutting block outward transporting; 4, repeating steps one, two and three for many times until the construction process of the constructed hard rock tunnel is finished. The method provided by the invention is simple in steps, convenient to implement, lower in input cost, high in construction efficiency, good in construction effect, and can simply, conveniently and quickly finish the construction process of the hard rock tunnel.

The invention discloses a high-pressure abrasive water jet tunnel excavation method, which includes the following steps: S1, confirming the construction parameters, using a high-pressure abrasive water jet device to perform trial cutting on a certain part of the tunnel face, and obtaining slot depths under different processing parameters and the slot width, and then select a set of parameters according to the construction site conditions for construction; S2, divide the tunnel surface grid, and divide the tunnel surface grid according to the construction parameters obtained in S1; S3, cut the slot, and use high-pressure abrasive water jet The abrasive water jet sprayed by the axial nozzle of the device moves along the cutting line of the face grid to form slots, which divide the face into multiple rock blocks; S4, peeling off rock blocks, uses a high-pressure water jet device The abrasive water jet sprayed by the radial nozzle in the slot radially cuts the bottom of the slot, so that the rock blocks are peeled off, and the peeled rock blocks are transported away from the face. It can be applied to rock mass excavation under various complex geological conditions, improve excavation efficiency and accuracy, and reduce environmental pollution.

The invention relates to a construction method for fast-setting polymer grouting to quickly control collapsed hillocks. The scheme includes the following construction steps: excavating at least one side slope horse track on the collapsed hillside slope; drilling a plurality of anchor holes on the collapsed hillside slope ; Insert the ground anchor into each anchor hole and perform polymer grouting to form a polymer anchor; Lay the steel mesh on the surface of the collapsed hillside slope and connect and fix it with the end of each ground anchor, and the steel mesh is connected to the There are several spacers between the surface of the collapsed hillside slope; two-component intumescent polymer grouting material is sprayed on the steel wire mesh to form a high polymer anti-scour layer; drills are drilled on the collapsed hillside slope through the mesh of the steel mesh. Take a plurality of planting holes; fill each planting hole with mixed nutrient soil of grass seeds; set a plurality of inclined drainage holes inwardly and upwardly from the high polymer anti-scour layer, this method has the advantages of short construction period, ecological environment protection and convenient construction And the advantages of high strength and strong erosion resistance.

The invention belongs to the field of wood and plastic rails and particularly relates to a rail convenient to adjust and high in universality. The rail convenient to adjust and high in universality comprises a base, a stand column and a rail plate, wherein the stand column comprises an inner casing pipe and an outer wall pipe which is provided with one or more mounting grooves, and locating grooves are formed in the groove walls of the mounting grooves. The rail further comprises a sealing strip which is provided with matching ribs, wherein the locating grooves are formed in the sides, close to groove openings, of the groove walls of the mounting grooves, and the outer wall pipe is fixedly connected with the inner casing pipe through the groove walls of the mounting grooves. The inner casing pipe is a square pipe, a circular pipe is arranged on the inner pipe wall of the inner casing pipe in an internally tangent mode, locating cavities are formed in the parts, located at the four corners of the inner casing pipe, between the circular pipe and the inner casing pipe, and the base comprises a bottom plate and a locating pipe and is further provided with locating bars. The rail convenient to adjust and high in universality is simple in structure, good in mounting stability, not prone to shaking, high in universality of all parts, convenient to process, low in cost and small in mounting waste, and the mounted wood and plastic rail is high in integrality, high in universality of parts and convenient to adjust.

The invention discloses a cadmium-contaminated soil remediation fixing agent based on microorganism assembly synthesis as well as preparation and an application method thereof. At present, multiple nano phosphate fixing agents for cadmium-contaminated soil remediation are easily dispersed and lost, underground water eutrophication is caused, and further secondary pollution is caused. Aiming at solving the problems, nano-hydroxyapatite is taken as a central substance, aspergillus niger hyphae are adopted for wrapping the nano-hydroxyapatite, and a cadmium-contaminated soil remediation fixing agent specific to high contamination and high acidity is prepared, so that the problem of excessive dispersion in practical application is solved. A synthesized product is uniformly mixed with cadmium-contaminated soil in a certain rate, and effective state cadmium content is reduced by 67-86%. The cadmium-contaminated soil remediation fixing agent disclosed by the invention is simple in preparation process, low in cost, efficient, non-toxic and biodegradable and has no secondary pollution, thereby being an environment-friendly fixing agent.

The invention relates to a construction method for high-pressure spraying microbial bacterial liquid to deposit calcium carbonate to treat landslides. The plan includes the following construction steps: cleaning the slope surface of a potential landslide body, and arranging an operation platform; Drilling to form a plurality of liquid injection holes; inserting a steel flower tube closed at the bottom into each liquid injection hole; injecting microbial bacterial liquid into each steel flower tube; elevating the steel flower tube according to the set speed until it is lifted to a soft sliding Stay at the surface for a set time and then continue to lift the steel flower tube; stop the microbial injection when the bottom elevation of the steel flower tube exceeds the weak sliding surface elevation by at least 1m; pull out each of the steel flower tubes, wait for the bottom of each injection hole. After the microbial deposition of calcium carbonate is completed, microbial bacterial liquid injection and soil filling are performed in each liquid injection hole again. The invention has the advantages of reducing the damage to the mountain and the ecological environment, and has the advantages of fast construction speed and low construction cost.

The invention provides an elastic block component and a mold. The elastic block component comprises an elastic block, a route screw, at least one first spring, a support component and at least one second spring, wherein a through hole is formed in the elastic block; counter bores are respectively formed at the two ends of the through hole; the route screw is arranged in the through hole of the elastic block and passes through the through hole; the head part of the route screw is located in the counter bore at one end of the through hole; the first spring sleeves the route screw and is resisted against the interior of the counter bore at the other end of the through hole; the support component is located above at least two belleville springs and sleeves the route screw; the second spring is located above the support component and sleeves the route screw. The elastic block component provided by the invention combines the characteristics of large elastic force and small route of the belleville spring and small elastic force and large route of the rectangular spring, so that the elastic block can smoothly pop up without influence on the stability of the elastic block, no safety problem is caused and the requirements for normal production and convenience in maintenance of the mold can be met.

The invention discloses a model surrounding cooling mechanism for a 3D printer. The mechanism comprises a rotating disc. Two fixing rods are symmetrically, horizontally and fixedly connected to the side wall of the rotating disc. The tow fixing rods are both close to the top of the side wall of the rotating disc. A center shaft is arranged in the center inside the rotating disc, teeth surround the bottom of the side wall of the rotating disc, one side of the rotating disc is horizontally provided with a rotating gear, shells are vertically clamped to the tops of the two fixing rods respectively, a fixing block is arranged at the top of each shell, a rotating fan is rotationally connected to the interior of each fixing block, a threading ring is fixedly connected to the center of one side wall of each shell, a power line is arranged at the side, close to each threading ring, of the corresponding rotating fan, the power lines penetrate through the threading rings, and a rectification cap is fixedly connected to the end, away from each power line, of the corresponding rotating fan. The mechanism has the advantages of being convenient to install, capable of performing surrounding cooling and capable of adjusting the angle and the distance.