64results about How to "Load bearing" patented technology

The invention relates to a lightweight energy-saving insulating concrete, belonging to building materials. The invention comprises the master batches and accessories in accordance with the following parts by weight: master batches: 30-70 parts of cementing materials, 25-60 parts of fillers, 5-10 parts of strength activators, and accessories: 1-3 parts of waterproof agents, 2.0-3.0 parts of bleeding agents, 2.0-5.0 parts of suspending agents, 0.1-0.5 part of foam stabilizer, 38-60 parts of honeycomb agents, 0.5-1.5 parts of rusty retardant agents, 0.02-10 parts of reinforcing agents, 1.2-4.2 parts of early strength agents and expanding agents and 0.6-1.4 parts of acid and alkali resistant fibers. The concrete has the advantages of high early tensile and compressive strength, no decrease and crack of later strength and simple manufacturing process. According to the requirement of the building structure, the technical target of the concrete can be realized by regulating the mixing proportion. The concrete can be used for manufacturing various products at normal temperature and is widely applied to insulating and self-waterproof building engineering.

The present invention relates to a honeycomb concrete belong to a building material. The honeycomb concrete comprises the mother material and supplementary material with the following weight proportion: quick hardening sulfaluminous cement or ultrastrength cement: 30-70 parts; filling material: 25-60 parts; ordinary Portland cement: 5-10 parts; waterproofing agent: 1-1.5 parts; bleeding agent: 2.0-3.0 parts; suspension agent: 2.0-5.0 parts; foam stabilizer: 0.1-0.5 parts; and honeycomb agent: 38-60 parts. The invention has the following advantages and beneficial effects: light weight, high strength, long service lifetime, heat preserving with high efficiency, heat insulation, sound insulation, self-water-proofing, non combustibility, impact resistance, small contraction percentage, convenient construction and installation, reducing the weight of the building, increasing the using area, convenient product preparation and construction, the concrete not only can be made in factory but also can be made at the construction site.

A prefabricated construction method for energy-saving renovation of existing buildings, which includes: A) adding a steel structure connecting plate on the top of the original building structure; There are building structure connections; set up energy-saving composite exterior wall panels, partition panels, laminated floor panels with foamed cement materials, and energy-saving composite roof panels with foamed cement materials, and assemble them on-site through plate connectors or directly with the jointed steel structure Connect, and fill the gap between the inside and outside of the board and between the board and the original building structure with insulation and sealing materials, that is, the energy saving of the original building and the renovation of the old building are completed; B) Adding a wall outside the original building structure Board connection board and exterior wall panel support; install energy-saving composite exterior wall panels with foamed cement materials on the outside of the original building exterior walls, and connect and fix them through the wall panel support and wall panel connectors; and fill the interior of the exterior wall panels with insulation , Sealing materials, that is, the energy-saving renovation of the exterior walls of the original buildings has been completed.

A nutritive earth brick for culturing lawn has several pits at intervals of 30-50 mm and the mixture of lawn grass' seeds and activated nutritive soil, which is pilled in each pit. Its preparing process includes such steps as proportionally mixing the activated nutritive soil with adhesive, adding water, grinding, die pressing, drying, filling said mixture of lawn grass' seeds and activated nutritive soil in each pit, covering by sludge, and drying.

The invention discloses an electric hoisting bracket for a vertical column type cable in a cable tunnel. The electric hoisting bracket comprises a stand column, a motor and a rope, wherein a first fixing waist ring, a bolt hole, a second fixing waist ring, a third fixing waist ring and a fourth fixing waist ring are arranged on the stand column. A fixing bolt is arranged on the second fixing waistring, a lifting rod and a first pulley are arranged on the third fixing waist ring, the lifting rod is provided with an adjusting ring, a second pulley and a first connecting ring, and the first connecting ring is connected with a second connecting ring on the fourth fixing waist ring through an auxiliary rope, the bottom end of the stand column is connected with a base, the motor is connected tothe base, the motor is connected with a rolling shaft, the rope is arranged on the rolling shaft, the rope sequentially penetrates through a rope guiding ring, the first pulley, the adjusting ring and the second pulley and is connected with the lifting ring, and the lifting ring is vertically downward to form a single lifting ring, or the lifting ring is connected with the adjusting ring and a movable pulley is arranged on the rope to form a double-suspension ring. According to the electric hoisting bracket, the labor intensity is reduced, and the construction efficiency is improved.

The invention discloses a fall prevention lifting device and a fall prevention method thereof, and belongs to the technical field of lifting devices. The fall prevention lifting device comprises a rack, a lifting platform and a power mechanism, and further comprises a double-nut screw mechanism, wherein the double-nut screw mechanism comprises a screw rod and a main nut and a sub nut which sequentially sleeve the screw rod, two ends of the screw rod are in transmission connection with the power mechanism, and the power mechanism is fixed to the rack; the main nut is in sleeved connection on anut seat along the outer wall, and the nut seat is fixedly connected with the lifting platform; an interval is reserved between the bottom ends of the main nut and subnut to avoid the load bearing ofthe subnut, so that the main nut holds the weight and the sub nut does nothold the weight. The fall prevention lifting device and the fall prevention method thereof have the advantages that the designis ingenious, and the problems in the prior art are solved that a weight-bearing nut of a screw rod mechanism of the lifting device slips and the production cannot be continuous.

The invention provides a tunnel redundant DC power supply system and a power supply method. The power includes a parallel DC power supply rectifier device, a wire inlet end of the DC power supply rectifier device is connected to an AC bus, a wire outlet end of the DC power supply rectifier device is connected to a DC busbar, the DC power supply rectifier device rectifies 380V AC power into 400V high-voltage DC power, the DC busbar supplies power to an LED lamp, and the LED lamp includes a DC/DC power supply and an LED lamp. According to a minimum system of the invention, an AC/DC rectifies the380V AC power into the 400V high-voltage DC power. An AC lightning arrester function is lightning protection grounding, and a circuit is protected, an AC contactor is responsible for controlling thestarting and stopping of the device, and the emergency lighting of a first-level load can be satisfied.

The invention provides a flower swing frame and belongs to the technical of flower cultivation. The technical scheme of the flower swing frame is that the flower swing frame comprises a swing frame assembly and an adjustment mechanism, and the swing frame assembly is disposed on the adjustment mechanism. The flower swing frame has the advantages that the swing frame can place the flowers that mustbe exposed to the sun and the flowers that do not require long-term exposure to sunlight on a card slot, and a roller can be adjusted according to the habit of flowers and plants; the adjustment mechanism can adjust the whole swing frame assembly to always follow the sunlight, so that exposure time is extended, the efficiency of photosynthesis is improved, and more oxygen is released.

The invention discloses a self-lubricating hot-dip galvanized steel sheet for a steel-wood composite floor and a manufacturing method of the self-lubricating hot-dip galvanized steel sheet. The self-lubricating hot-dip galvanized steel sheet for the steel-wood composite floor and the manufacturing method of the self-lubricating hot-dip galvanized steel sheet are mainly used for solving the technical problems of poor bonding performance and high manufacturing cost of an existing self-lubricating hot-dip galvanized steel sheet in the prior art. According to the self-lubricating hot-dip galvanized steel sheet for the steel-wood composite floor, a base plate of the self-lubricating hot-dip galvanized steel sheet comprises the following chemical components of, by weight: 0.02% to 0.06% of C, less than or equal to 0.04% of Si, 0.2% to 0.4% of Mn, less than or equal to 0.02% of P, less than or equal to 0.017% of S, 0.025% to 0.050% of Alt, 0.001% to 0.003% of B and the balance Fe and inevitable inclusion elements. According to the the hot-dip galvanized steel sheet, the dynamic friction coefficient is smaller than or equal to 0.12, the surface energy is larger than or equal to 38 dyn/cm,the white rust area is smaller than or equal to 5% in a 120 hour salt spray test. The hot-dip galvanized steel sheet is good in bonding performance, good in lubricating performance, easy to machine and low in production cost.

The invention relates to a composite functional shoe pad. The shoe pad is divided into an area A and an area B, wherein the area A is divided into a sole area A1 and a heel area A2, the area A is made of a closed cell polyurethane foam material, the other part is the area B, and the area B is made of a fine cell polyurethane foam material. The composite functional shoe pad is prepared by using a mold I and a mold II through a two-time injection technique. The composite functional shoe pad provided by the invention selects different foam materials for providing functional protection according to different physiological parts of a foot, can satisfy walking and moving demands of people, and can better play roles of perspiration, weight bearing and stress reduction. The process is simple, the fine cell polyurethane foam material and the closed cell polyurethane foam material are bonded more uniformly and firmly than materials directly glued, and the composite functional shoe pad is suitable for large-scale production and application.

A vehicle seat configured in such a manner that the vehicle seat reduces an impact caused by a rear collision and that the structure of the periphery of side frames is simplified. A vehicle seat (S) is provided with: a seat back frame (1) having side sections (15) located at the sides thereof; a pressure receiving member (20) connected to the seat back frame (1) through connection members (21, 22) and supporting the occupant; and an impact reducing member (30) which is disposed on at least one of the side sections (15), is engaged with the connection member (22), and is moved, by a predetermined impact load applied to the pressure receiving member (20), to move the pressure receiving member (20) rearward, the side section (15) having a protrusion section (15e) protruding in the range of movement of the impact reducing member (30). When in contact with the protrusion (15e), the impact reducing member (30) is prevented from moving.

The invention relates to a steel skeleton expanded rock pressure relief plate and a pressure relief structure using the same. The pressure relief plate comprises a steel skeleton and a steel wire net laid on the steel skeleton, wherein a expanded rock lightweight core material is arranged on the steel skeleton and the steel wire net; a cement-based composite impermeable protective layer is arranged on the expanded rock lightweight core material; a main rib protective layer is arranged below the steel skeleton and the steel wire net; the weight per unit area of the steel skeleton expanded rock pressure relief plate is 40 to 50 kg/m<2>, and the pressure relief threshold value of the steel skeleton expanded rock pressure relief plate is about 8.0 to 10.0 KN/m<2>; the expanded rock lightweight core material is a 350-grade to 450-grade expanded rock core material; the main rib protective layer is 15 to 20 mm in thickness; the cement-based composite impermeable protective layer is 1 to 3 mm in thickness. The steel skeleton expanded rock pressure relief plate provided by the invention has the characteristics of heat preservation, fire resistance, sound insulation, pressure relief, load-bearing property and the like. Through inspections on a series of dynamic destruction tests, the pressure relief plate consisting of the expanded rock has excellent pressure relief performance under the action of dynamic load.

The invention discloses a modular vertical flow constructed wetland sewage plant tail water treatment device which comprises a wetland pool body, a plant matrix module, matrix modules, an aeration device, a water inlet groove, a water inlet pipe, a water distribution pipe, a water storage pool and a water outlet backflow device, a pool body matrix filler is arranged in the wetland pool body, and the water inlet pipe is arranged at the lower end of one side of the wetland pool body; the water inlet pipe is connected with the water inlet groove, the bottom of the wetland pool body is connected with the water distribution pipe, the water distribution pipe is connected with the water inlet pipe, the water storage pool is arranged at the upper part of the other side of the wetland pool body, the water outlet backflow device is arranged at the bottom of the water storage pool, and a water outlet pipe is arranged on the water storage pool; the aeration device is arranged at the middle upper parts of the plurality of layers of matrix module groups; the invention further relates to a tail water treatment method utilizing the device, on one hand, the upward vertical flow constructed wetlandis adopted to properly relieve blockage, and the influence of blockage on a wetland system is reduced by the method; on the other hand, the wetland substrate is modularized so that when the wetland isblocked, a new module or matrix unit is convenient to use through replacement and the subsequent maintenance is convenient.

The invention discloses a novel LED module structure and an LED screen, and relates to the field of display screen design, the novel LED module structure comprises a bottom shell and an LED lamp panel, the LED lamp panel is fixedly installed on the bottom shell, the LED lamp panel is filled with sealing colloid, a plurality of reinforcing plates are fixedly installed on the back face of the LED lamp panel in an attached mode, screw holes are formed in the reinforcing plates, a plurality of screw counterbores are formed in the back face of the bottom shell, and the screw counterbores are arranged in the bottom shell. Screws are installed in the screw counterbores in a clearance fit mode, the upper ends of the screws are installed in the threaded holes in a one-to-one correspondence and spiral fit mode, a plurality of supporting columns are formed in the bottom shell, and the LED lamp panel is pressed on the supporting columns. The LED display screen has the beneficial effects that the sealing colloid is filled and covered on the LED lamp panel and has the functions of bearing weight, preventing water and moisture and protecting the LED lamp panel, and light rays can be diffused outside the sealing colloid, so that black lines are not obvious during splicing, and the display effect is ensured; the supporting columns are located on the back face of the LED lamp panel, color blocks cannot be generated, and the optimal XR effect is achieved.

The invention provides spontaneous combustion coal gangue aggregate self-compacting structure thermal insulation concrete and a preparation method thereof, and the method is as follows: the spontaneous combustion coal gangue aggregate self-compacting structure thermal insulation concrete is composed of a component A and a component B, the component A is prepared from the following materials according to the corresponding mass ratio: cement: admixture: coarse aggregate: spontaneous combustion coal gangue fine aggregate: commercially available light fine aggregate = 1: (0.2-0.25): (0-2.72): (0-2.89): (0-0.0145); and the component B is prepared from the following materials according to the corresponding mass ratio: water: an admixture = (0.45-0.5): (0.002-0.0024) (accounting for the sum of the cement and the admixture). According to the mix proportion and the complete preparation method of the novel thermal insulation concrete with the self-compacting structure prepared from the large-mixing-amount coal-based solid waste, the coal-based solid waste is fully utilized, and meanwhile, the concrete has the characteristics of load bearing, thermal insulation, fire prevention, no vibration, energy conservation, environmental protection, waste utilization, economy and the like. The product has the characteristics of synchronous construction of building wall thermal insulation and the structure, same service life of the building thermal insulation and the wall and the like.

The invention discloses a mineral conveying device with a function of preventing mineral from slipping for mining. The device comprises a rack and a conveying belt, a limit plate is arranged above therack, and side rollers are arranged at the two ends of a rotary shaft; bearing rollers are arranged on the side surfaces of the side rollers, connecting springs are arranged on the inner sides of thebearing rollers, and the conveying belt is located on the outer sides of the bearing rollers; a limit belt is arranged on the outer side of the conveying belt, a driving roller is arranged on the inner side of the tail end of the conveying belt, and an arc groove is formed in the outer side of the driving roller, and a driving motor is arranged on the side surface of the driving roller. The mineral conveying device with the function of preventing mineral from slipping for mining is provided with skid resistance strips and a limit band, in the using process of the device, the skid resistance strips can effectively improve the friction between the conveying belt and the mineral, the limit band has the limiting and lateral bearing effects, the mineral can be effectively prevented from skidding, and the safety and transporting efficiency of the device are improved.

The invention discloses a liftable traditional Chinese medicine sorting cabinet, which comprises a cabinet body, a plurality of bottom storage cabinets are arranged at the bottom of the cabinet body, several rows of several bottom common traditional Chinese medicine sorting cabinets are arranged above the bottom storage cabinets, and a plurality of bottom common traditional Chinese medicine sorting cabinets are arranged above the bottom storage cabinets. There are several rows of commonly used traditional Chinese medicine sorting cabinets in the middle, and a row of several middle commonly used tool display cabinets is arranged in the middle of the middle commonly used traditional Chinese medicine sorting cabinets, and several rows of several top special traditional Chinese medicine sorting cabinets are arranged above the middle commonly used traditional Chinese medicine sorting cabinets , the two sides of the cabinet are provided with side plates, the side plates are provided with a lifting device, the bottom of the lifting device is provided with a bottom plate, the end of the bottom plate is provided with a baffle, and an inner wall is formed between the bottom plate and the baffle. cavity, the lifting device is arranged in the inner cavity, and the cabinet moves up and down relative to the bottom plate according to the lifting device. The invention has the characteristics of convenient use, simple structure, convenient operation and more convenient access to the medicinal materials on the top.

The invention discloses an assembly type overhead thermal insulation and sound insulation board for a floating construction floor and a preparing method of the assembly type overhead thermal insulation and sound insulation board. The assembly type overhead thermal insulation and sound insulation board comprises a quick-hardening cement mortar layer (1), an overhead load-bearing reinforced concreteboard (2), and a foam polyurethane layer or an inorganic mineral fiber thermal insulation and sound insulation material layer sprayed on the back side of the overhead load-bearing reinforced concreteboard (2). The overhead load-bearing reinforced concrete board (2) comprises supporting legs (2-1) at the bottom and a reinforced concrete board (2-2), wherein reinforcing mesh or mesh cloth is arranged in the reinforced concrete board (2-2). The assembly type overhead thermal insulation and sound insulation board is reasonable in structural design, has load bearing, thermal insulation, sound insulation, damping and other performance, is not prone to cracking, convenient to construct, little in dust, high in environmental friendliness and remarkable in comprehensive benefit, is manufactured in a factory and subjected to dry-type operation on site, and can improve the labor productivity, save lots of labor and management cost, greatly shorten the construction cycle and promote the assemblytype development of the floating construction floor.

The invention relates to a supporting device made of retractable supporting rods, at least three supporting rods and an upper center clamping piece are arranged, and each supporting rod is formed by combining a retractable supporting rod and a group of clamping head assemblies on the retractable supporting rod; the retractable supporting rod is made of a bistable composite material structure body, when the retractable supporting rod is in a working state, the retractable supporting rod extends to form a main stable straight pipe which is rolled up in the axial direction of a long side and has a C-shaped section, and when the retractable supporting rod is in a non-working state, the retractable supporting rod is a sub-stable rolling belt rolled up in the axial direction of a short side; the group of clamping head assemblies at least comprise an upper end part clamping head assembly and a lower end part clamping head assembly, and further comprise more than one middle clamping head assembly; each clamping head assembly adopts a pull buckle type locking structure or an eccentric clamping structure; the upper end of each supporting rod is provided with a connector connected with the upper center clamping piece. The device has the advantages of small size, light weight, high strength, high erection, quick deployment and the like, can be carried by a single person, is particularly suitable for being used under the condition that a vehicle cannot reach, and can provide powerful guarantee for quickly constructing an emergency network.