312results about How to "Avoid leakage hazards" patented technology

The invention provides an overhanging type outer scaffold which comprises an outer scaffold body, the outer scaffold body is fixed to the outer side of a building outer wall through wall connecting pieces, and the wall connecting pieces comprise a first wall connecting piece, a second wall connecting piece and a third wall connecting piece. Compared with a traditional overhanging scaffold construction technology, the construction method has the advantages that by means of the construction method of embedded connecting steel plates on beams and fixing I-shaped steel, the problems that the overhanging scaffold has large requirements for I-shaped steel materials, and an embedded wall connecting rod is difficult to control on the aspect of parallelism and construction hole residues are solved.The embedded connecting steel plates do not affect masonry construction, the hidden danger of leakage caused by the fact that holes are reserved during masonry and the potential safety hazard causedby the fact that wall connecting rods are dismantled during worker construction are reduced, and the influence on the building structure is small. An overlong I-shaped steel material does not need tobe arranged to be fixed in a building, materials are saved, and the construction cost is saved. The problem that the parallelism of the embedded wall connecting rods is difficult to control is avoided, the construction efficiency is improved, and the construction period is shortened.

One or more embodiments of the specification provide a block chain-based logistics distribution method, system and device. The block chain includes a plurality of node devices corresponding to a logistics delivery sites and logistics distribution sites, the method includes the following steps: a logistics delivery site receives logistics information which includes user receiving address information, a secret key related with a public key of a distribution site is utilized to encrypt the logistics information to obtain encrypted logistics information, wherein the distribution site is one determined according to the user receiving address information, and the encrypted logistics information is sent to a distributed account book of the block chain; and the logistics distribution site obtainsthe encrypted logistics information from the distributed account book of the block chain, uses a secret key related with a private key of the distribution site to decrypt the encrypted logistics information to obtain the logistics information, and distribution is performed based on the logistics information.

The invention relates to a modular multifunctional roof greening device, which is assembled by a base plate arranged on the top surface of the roof, a hollow communicating pipe, a strip clamp and a cross clamp; hollowing footings are distributed evenly at the bottom of the base plate, and reinforcing ribs are arranged on the inner wall and the soleplate of the base plate; the middle part of the base plate is provided with a square groove which is communicated with draining holes at the four sides of the base plate; a portal cover plate is sheathed and inserted at the upper end of the square groove, the two sides of which are provided with an overflow hole and card slots arranged at the two sides of the overflow hole; a filtering box is inserted in the card slot; and a slot used for placing a water level regulating board is arranged in the square groove. The modular multifunctional roof greening device has simple manufacture and fast construction, can be used for planting flowers, grass and trees, etc., has high survival rate of plants, obvious water-saving and convenient maintenance and management, can be used for greening of the roof, can also be used for room greening and stereoscopic agriculture, etc. and has multiple actions of protecting the roof of buildings, greening the city space, insulating heat, keeping the temperature, preventing water and collecting and using the rainwater.

The invention discloses a rough crack changing opening degree for a visualization experiment and a manufacture method thereof. The transparent rough crack comprises transparent rough crack upper and lower trays, a crack space between the rough crack upper and lower trays, upper and lower edge baffles at two sides, a rigid gasket with specific thickness, a reserved water stop cavity, and so on. Themanufacture method comprises following steps of: acquiring an original rough crack by cleaving a square rock, and copying to obtain the transparent rough crack upper and lower trays; customizing upper and lower edge water stop baffles with specific size and structure; fixing the upper and lower edge baffles at two sides at two sides of the crack upper and lower trays from bottom to top; and adding a rigid gasket with specific thickness between the upper and lower edge baffles according to needs, so as to change average crack opening degree. The method is easy to operate, has good repeatability and high accuracy, and delivers reliable, accurate average opening degree of the rock rough crack.

The invention relates to a construction method and a double-layer formwork structure for a cast-in-situ slope roof. The double-layer formwork structure comprises a supporting rod system, a formwork keel, a bottom formwork, a surface formwork and counter-pull positioning waterproof bolts. The bottom of the formwork keel is fixedly supported by the supporting rod system; the bottom formwork is laid on the upper surface of the formwork keel, the surface formwork is parallel to the bottom formwork, and a distance between the surface formwork and the bottom formwork is equal to the thickness of a concrete pouring layer of the slope roof; the bottom formwork and the surface formwork are positioned through the counter-pull positioning waterproof bolts; the surface formwork is formed by a plurality of segmented surface formworks at intervals, and a trough formed by ends of the adjacent segmented surface formworks and the bottom formwork serves as a vibration tamping trough for segmented pouring of concrete. By adoption of the double-layer formwork structure and a segmented concrete pouring and vibration tamping method, the problem of proneness to slipping of concrete in construction of the slope roof is solved, structural compactness, high section size precision and high surface quality of concrete after pouring and tamping are achieved, and the construction method is simple and feasible.

The electric vegetable cutting machine includes a vegetable cutter, a driving device to drive the cutter to reciprocating, a container with horizontal rail in the inner wall and a cutter holder on the rail and connected to the cutter. On the container, there are a detachable cover, a hopper in the cover and communicated to the container, and an extruder inside the hopper. The driving device installed detachably on the cover includes a casing, a motor, a switch, a gear set and a crank-slider mechanism with slider connected to the cutter holder. The crank-slider mechanism converts the rotation of the gear set into the horizontal linear motion of the slider to drive the cutter to cut vegetable stably.

The invention discloses a plastic electric-spraying throttle valve body assembly, comprising a throttle valve body (1), a throttle valve spindle (2), a throttle valve piece (3), a torsion spring (4), a swing frame (5), a position sensor (6), a stepping motor (7), a flange plate metal insert (10), an idle screw mounting hole metal insert (11), stepping motor and position sensor mounting hole metal inserts (12), a card (14) and an idle adjusting screw (17), wherein a main channel (8) and an idle side channel (9) are arranged inside the throttle valve body (1), and a base of the throttle valve body (1) is provided with a flange plate (18). The plastic electric-spraying throttle valve body assembly has the beneficial effects that the defect of easy deformation of the main channel of the plastic throttle valve body can be effectively overcome, the fast interchange of a metal throttle valve body assembly and a plastic throttle valve body assembly in the process of assembly and after-sale maintenance of an engine is realized, and the leak problem of the side channel of the throttle valve body caused by different coefficients of thermal expansion is solved.

The invention discloses an ultra-long concrete wall body structure and a method for controlling structural cracks by constructing a wall body. The ultra-long concrete wall body structure comprises a wall body, wherein cutting steel plates (3) are arranged on a concrete inner core layer (2) arranged between two layers of steel bar nets (1) of the wall body in the length direction of the wall body at certain intervals; the continuous concrete inner core layer (2) arranged between two layers of steel bar nets (1) is cut into concrete inner core units (4) by the cutting steel plates (3); a plurality of horizontal connecting steel bars (5) in different heights are welded on each cutting steel plate (3); two ends of each connecting steel bar (5) are provided with bending sections (5.1); and the two bending sections (5.1) of each connecting steel bar (5) are respectively welded with horizontal steel bars (1.1) of the two layers of steel bar nets (1). The method comprises the key step that the cutting steel plates (3) are arranged in the length direction of the wall body at certain intervals. The structure and the method disclosed by the invention have the advantages that the effective control can be realized on the structural cracks, and harmful cracks can be eliminated.

The invention provides a mounting method of a precast air duct during the construction stage of a construction engineering structure. According to the method, original procedures are changed, the air duct mounting operation is performed after main structure wall construction, and the air duct mounting operation and the top plate template mounting are performed together, each procedure in the existing construction method is omitted, synchronous air duct mounting and main structure construction progress can be achieved on the premise of not increasing construction materials and working hours, and the waterproof construction progress and quality of a roof are better ensured.

The invention relates to an upper-mounting-type hydraulic ball valve which comprises an upper valve rod, a valve cover, a valve body, a lower valve rod and a valve seat assembly; the valve seat assembly is installed between the valve body and a central ball valve body; two sides of the valve body are respectively provided with the upper valve rod and the lower valve rod; the valve cover is installed at the part of the lower side of the upper valve rod; the clearance parts of the valve seat assembly, and the upper side and the lower side of an outer valve body are respectively provided with a grease injection hole II and a grease injection hole I; and one side of the grease injection hole II is provided with a screw plug hole. The invention has the beneficial effects that a hydraulic piston motion principle is adopted, the ball valve has a stable structure, the hazard of valve body leakage is avoided, the dismounting issue of the upper-mounting-type ball valve can be solved thoroughly with the minimum difficult, and the on-line maintaining requirement is realized; and the simple batch production of valves with large and small calibers and high and low pressure can be realized, the existing similar products can be replaced completely, and the ball valve has wide market potentiality.

The invention relates to the technical field of refrigerators and provides a refrigerator body manufacturing process. The refrigerator body manufacturing process comprises the steps of prefabricating components and parts, splicing and sealing the components and parts to form a refrigerator casing, filling a foaming material into the refrigerator casing and performing a foaming work procedure to manufacture a refrigerator body. The components and parts include a condenser, an evaporating pipe, a refrigeration inner container, a freezing inner container, an outer casing, a back plate, a base plate, a middle cross beam, a lower cross beam, a dew removing pipe and a drainage pipe. The refrigerator body manufacturing process is characterized in that a freezing evaporator and a refrigeration evaporator form a non-welded one-piece communicating pipe, and accordingly leakage of a refrigerant in the refrigerator body can be effectively avoided, and has the advantages of being simple in operation, high in finished product rate and low in manufacturing cost.

The invention provides a gas cooker and a control method thereof. The gas cooker comprises a burner, a fire cover, a color sensor and a reflection piece, wherein a fire hole communicated with a gas injection channel on the burner is formed in the fire cover, so that gas is sprayed from the fire hole to form a flame; the color sensor is positioned at the bottom of the burner; an avoidance channel is arranged between the color sensor and the fire hole; a reflection surface is arranged on the reflection piece and is used for reflecting the color of the flame to the color sensor by the avoidance channel so as to detect the color of the flame; the melting point of the reflection piece is higher than the temperature of the flame generated by burning of the gas. The gas cooker provided by the invention is used for detecting the color of the flame by the matching of the color sensor and the reflection piece to detect whether the flame is put out abnormally in real time, and further a user can be reminded in time when the gas leaks, so that the occurrence of potential safety hazards is avoided; the detection speed is high, the detection is precise, and the problem that the color sensor can not resist high temperature, so that the color of the flame and the leakage of the gas can not be detected by the color sensor is overcome.

The invention discloses a novel cable conveyor. The cable conveyor structurally comprises a conveyor, a clamping column, a rolling shaft and a motor. The conveyer is in bolted connection with the upper side of the motor. The clamping column is welded with the outer side of the motor. After the cable enters the conveyor, the clamping belt is used for fixedly conveying the cable. In a conveying process, the spring supported by the abutting plate abuts against the touch plate to protect and convey the cable, the reduction of the molecular structure activity of the rubber material of the cable insulation layer in cold air is prevented. Deformation is caused in the conveying process, so that cracks are generated in the insulating layer, and the insulativity of the cable is reduced. In the cableconveying process, the cushion plate tightly wraps the cable under the matching of the connecting shaft and the middle connecting shaft, the deformation of the supporting blocks increases the contactarea of the cable, reduces the unit area stress of the insulating layer, prevents the loosening deformation and even breakage of the insulating layer outside the cable caused by excessive traction, guarantees the insulation of the cable, and prevents the risk of electric leakage.

The invention provides a copper pipe section drawing device for solving the problems, such as leakage points, deformation, breakage, rough appearance and thick pipe wall, which easily occur in a traditional copper pipe section drawing device. The device comprises a bracket and a drawing die on the bracket, wherein the drawing die is connected with the bracket through a sliding rail on the bracket; the sliding rail is fixedly connected with the bracket; a cylinder is arranged on the other side of the sliding rail; a barrel of the cylinder is fixedly connected with the bracket; a piston rod of the cylinder is fixedly connected with the drawing die; a high-pressure oil pump for providing power for the cylinder is connected to the cylinder and is fixed on the bracket; the drawing die comprises a fixed chuck and a fixed base which is fixedly connected with the fixed chuck; the drawing die is fixedly connected with the piston rod of the cylinder through the fixed base; a programmable logic controller (PLC) is arranged on the bracket.

The invention belongs to the technical field of medical insurance, and particularly relates to a medical treatment and medical insurance system. The medical treatment and medical insurance system comprises a comprehensive service platform, a self-service terminal subsystem, a medical terminal subsystem, a mobile terminal subsystem and a user management subsystem. The medical insurance system utilizes an Internet medical innovation mode in which a card, a comprehensive service platform, a self-service terminal and a mobile terminal are combined. A unified convenient medical treatment and socialguarantee service is supplied through a unified approach (social security card) and different channels (hospital counter, self-service terminal and mobile terminal). The mode breaks through the medical service mode of a single hospital and can supply service to the public in different steps of medical treatment. The comprehensive service platform integrates all medical resources and medical insurance in pilot cities in a region. A centralized management mode is utilized for making city residents enjoy the unified quick service.

The invention discloses a shielded cable connector. The shielded cable connector comprises a protecting tube, a connector body, a fastening screw cap and a waterproof ring, wherein the protecting tube sleeves a cable, a shielding net is arranged in the protecting tube, and the shielding net extends to the exterior of the protecting tube axially; a through hole is arranged in the middle of the connector body, a shielding spring is arranged in the through hole of the connector body, and the inner side of the shielding spring is attached to the outer sidewall of the shielding net; the fastening screw cap is connected to a first end of the connector body through a screw thread; the bottom of the waterproof ring is connected to the first end of the connector body, the waterproof ring is arranged in the fastening screw cap, and the inner sidewall of the waterproof ring is closely attached to the outer sidewall of the protecting tube. The protecting tube sleeves the cable, so that the cable is protected. Through the fastening screw cap, the inner sidewall of the waterproof ring is closely attached to the outer wall of the protecting tube, so that the dustproof and waterproof effect is played, and meanwhile, the inner side of the shielding spring in the connect body is attached to the outer sidewall of the shielding net, the electromagnetic wave generated by the shielding cable can be shielded to prevent from affecting the human body and other electrical elements.

The invention discloses a novel scaffold wall connecting part and a use method, and relates to the field of building construction. For solving the problem that an existing scaffold wall connecting part is poor in practicability, the following scheme is provided, the part comprises an anchor head, an embedded sleeve, a wall connecting screw rod, a fine adjustment steel pipe, a wall connecting steelpipe, a telescopic steel pipe, a buckling part and an outer frame vertical rod, the embedded sleeve is fixedly mounted on one side of the anchor head, the wall connecting screw rod is mounted in theembedded sleeve in a threaded manner, the fine adjustment steel pipe used for fine adjustment of the length is arranged between the wall connecting screw rod and the wall connecting steel pipe, the end, away from the wall connecting screw rod, of the wall connecting steel pipe is provided with the telescopic steel pipe used for length adjusting, the structure is novel, the wall connecting part caneffectively avoid outer wall leakage, the influence of the wall connecting part on outer window mounting and indoor construction is avoided, the material waste is reduced, cost is saved, the verticalrod perpendicularity is precisely adjusted, the error-tolerant rate of the wall connecting part is improved, it is ensured that the wall connecting part can be smoothly mounted, and the use method issimple, practical and effective.

The invention discloses a rainwater recycling and filtering system. The position of an end cover can be changed along with the precipitation amount, and thus rainwater enters an inspection well rapidly. By depending on a mechanical structure, the circuit laying cost brought by electrical equipment is avoided, the electric leakage hidden danger caused by use in a humid environment is avoided, and the influence of the large-power electrical equipment in a power plant on an electronic component in a sensor is avoided.

The invention discloses a 45-degree slope roof cast-in-place concrete construction method. The method is characterized by comprising the following steps: a, preparing concrete; b, arranging a steel wire mesh on a slope roof; c, setting the casting sequence of the concrete; d, curing the concrete and performing form removal. The 45-degree slope roof cast-in-place concrete construction method has the advantages that the leakage hidden trouble remained to the slope roof concrete structure in the existing construction is effectively overcome, the concrete forming quality is guaranteed, the engineering quality is safe and reliable, the delay of construction period and economic loss thereof caused by rework repair due to leakage of the structure are avoided, and the created potential economic benefit is far greater than the increased investment.

The invention discloses an electromagnetic valve pulse test tool used for an oil pressure electromagnetic valve. The electromagnetic valve pulse test tool comprises a tool body, an oil feed pipe and an oil discharge pipe, wherein the tool body is provided with a tool oil inlet corresponding to an oil inlet of the oil pressure electromagnetic valve and a tool oil outlet corresponding to an oil outlet of the oil pressure electromagnetic valve, and the tool body is provided with an oil feed channel communicated with the tool oil inlet and an oil discharge channel communicated with the tool oil outlet; the oil feed pipe is communicated with the oil feed channel in a sealed mode; the oil discharge pipe is communicated with the oil discharge channel in a sealed mode. Through the electromagnetic valve pulse test tool, a pressure pulse test of the oil pressure electromagnetic valve is achieved in the mode that pressure oil is not directly fed into the oil pressure electromagnetic valve but pressure oil is fed into the tool body. Thus, through the electromagnetic valve pulse test tool, change-over of the oil inlet and the oil outlet of the oil pressure electromagnetic valve of a screw compressor is achieved, oil pressure pulse and voltage withstanding tests can be conducted on the electromagnetic valve, the reliability of the oil pressure electromagnetic valve is verified, and the hidden danger that the sold oil pressure electromagnetic valve leaks is avoided.