140results about How to "Replacement effect is good" patented technology

The invention relates to a method for replacing a self-balancing backpressure type bridge single-support. The method mainly comprises the construction steps of leveling, installation and updating of the support, installation of a monitoring device, application of pre-pressure, locking of a jacking supporting device, pouring of a support cushion stone and the like. By means of the method, a new support can not become empty or shift under the effect of a live load in a later period after bearing dead-load pre-pressure, and it is guaranteed that a beam body at the support can not be subjected to forced displacement at the same time, so that generation of additional internal force between a cross bridge and the beam body is avoided, and sufficient emergency capacity is reserved; in the whole construction process of support replacement, operation is easy and convenient, and almost no influence is imposed on structural safety of the bridge; the construction process of single-support replacement is simplified to the maximum extent, construction cost is saved, and extremely high economic benefits are obtained.

A method and mechanism for protecting the cylindrial coal bunker features that a telescopic aerator is arranged to its top for filling inertial gas, the aerating module is pre-embedded in its wall for filling inertial gas in coal, and the gas blocking module is arranged at its bottom for filling inertial to the position where coal is discharged.

The invention provides a method for directly vacuum drying and preparing polyimide airgel. The invention adopts the low boiling point solvent to replace the traditional high boiling point solvent, which can be effectively removed in the preparation of the polyimide airgel, and the replaced solvent can be used repeatedly. In addition, a solvent with a high freezing point is used to replace a solvent with a low boiling point. During the vacuum drying process, the solvent is directly sublimated from the solid phase to the gas phase, which avoids the gas-liquid interface and eliminates the capillary tension. The obtained product maintains the pore structure without collapsing. Compared with supercritical drying or freeze-drying process, this method has the advantages of simple operation, high efficiency and low energy consumption, and can be prepared on a large scale, and the obtained polyimide airgel has excellent performance, especially excellent heat insulation performance, and can be used as Insulation material is used.

The invention discloses a telescopic mechanism with a simple and detachable roller wheel device. The telescopic mechanism comprises two wheel bodies and a middle connecting shaft body, wherein the outer wall of each wheel body is provided with a wheel groove; an axial through hole is formed in the middle of each wheel body; the middle lateral wall of each axial through hole is provided with a connecting protruding ring; the inner wall of each connecting protruding ring is provided with a plurality of protruding strips; a bearing is inserted into each connecting protruding ring; the protruding strips are inserted into corresponding strip-shaped grooves in the outer wall of outer rings of the corresponding bearings; a rotary shaft is fixed in the inner ring of each bearing, and the connecting end of each rotary shaft is provided with a spline shaft part; the two ends of the middle connecting shaft body are provided with spline holes, and the spline shaft parts are inserted into the corresponding spline holes; end covers are fixed at the two ends of the middle connecting shaft body, and the connecting ends of the rotary shafts are inserted into the end covers; a buffering spring is arranged between each spline shaft part and the bottom end of the corresponding spline hole. The telescopic mechanism with the simple and detachable roller wheel device can prevent derailing during running, and meanwhile the bearings in the wheel bodies are convenient to dismount and mount.

A wheel for a manual wheelchair includes a gear assembly which is linked to the wheel and includes first and second gear ratio arrangements. A rotating shift mechanism provides the shift capability between the two gear ratios, the shift mechanism having two to six (preferably three) extended, approximately equally spaced leg members, mounted so as to rotate in a plane perpendicular to the axle between two positions. In one position of the shift assembly, the wheelchair is in a standard 1:1 gear ratio, while in another position, the wheelchair is in a lower, 2:1 gear ratio.

Disclosed is a thermoplastic resin composition which is excellent as a cleaning agent for cleaning molding machines. Specifically disclosed is a thermoplastic resin composition for cleaning molding machines, which contains, per 100 parts by mass of a polypropylene resin having an MFR of 0.1 to 1.0 g/10 min, (A) 5 to 60 parts by mass of an ethylene-acrylic copolymer, (B) 2 to 60 parts by mass of an unsaturated carboxylic acid-modified polyolefin resin, and (C) 1 to 10 parts by mass of a surfactant.

The invention discloses a polishing device for tubular mechanical processing which provides convenience for multi-angle work. The device comprises a base and a lower rising plate, the upper portion ofthe base is connected with a top plate through a support rod, a first wire rod penetrates through the inside of the support rod, the lower bottom of the first wire rod is connected to a first motor through a steering gear set and a conveyor belt, push rods are connected by a compression spring, the top ends of the push rods are provided with third motors, mounting blocks are connected to the topends of the third motors, the mounting blocks and a steel wire brush head are connected by a fixing head, and thread grooves are formed in the upper and lower sides of the steel wire brush head. The polishing device for the tubular mechanical processing which provides convenience for the multi-angle work can perform polishing and grinding work on a large area above tubular parts during single time, and the entire device needs fewer people assist in the work during polishing processing.

The invention discloses a membrane wall flue gas waste heat absorption device of a vertical boiler chimney for utilizing the flue gas. The device comprises an annular lower header and an annular upper header; the annular lower header is connected with a lower part water supply valve and a lower part blowdown valve, and is connected and communicated with the annular upper header through a membrane wall tube panel; the annular upper header is connected with the upper part water outlet pipe which is provided with a branch pipe; the branch pipe is connected with an upper header evacuation valve; the annular lower header is connected with the annular upper header through a long-wall threaded pipe; and the long-wall threaded pipe is positioned in the middle of the device. Energy sources can be saved effectively by utilizing flue gas residual heat.

The invention discloses a method for mining coalbed methane through coalbed burning assisted fracture forming. The method comprises steps as follows: (1) nitrogen gas and/or carbon dioxide gas are/is injected into a coalbed methane well, near-wellbore area coalbed methane is pushed to a deep position of a stratum by 3-5 m; (2) ignition is performed: air is injected for ignition at the temperature being 500 DEG C or above, and a near-wellbore area coalbed is ignited; (3) air injection is stopped, and the well is closed for 4-5 days; (4) the nitrogen gas or the carbon dioxide gas is injected to dilute involved oxygen in a near-wellbore area, and the mined gas explosion risk is avoided; (5) the coalbed methane is mined normally. The method is suitable for coalbed methane transformation, the cave completion effect in the near-wellbore area can be realized, fissures can be formed with the method instead of through fracturing, and a new thought is provided for effectively improving seepage capability of the coalbed methane.

The invention discloses a filing cabinet having indication keys and capable of positioning each filing box. The filing cabinet includes an intelligent control system, a door plate of a cabinet body, an automatic lifting door, a filing box rotation mechanism, and a box bucket; the filing box rotation mechanism is connected to the box bucket and can rotate the box bucket; filing boxes can be storedin the box bucket; a bending portion facing the interior of the filing cabinet body is arranged on the door plate; a plurality of square holes are formed in the bending portion at equal intervals; a distance and a position of each square hole is corresponding to each filing box stored in the box bucket in a one-to-one manner; a magnet self-starting device is arranged in each square hole; each magnet self-starting device includes an indication key, a pin, and a bidirectional self-holding electromagnet; each indication key is connected to the bidirectional self-holding electromagnet through thecorresponding pin; and each bidirectional self-holding magnet is connected to an energized circuit, and the energized circuit is connected to a total control circuit.

The invention discloses a server cabinet system and a construction method of a data center with the same. The construction method comprises the following steps that a plurality of supports which are mutually independent are constructed in a factory; at least a server cabinet, a power distribution cabinet and an air conditioner are prepared in the factory; the air conditioners, the power distribution cabinets and the server cabinets are installed on the supports in the factory according to preset design so as to obtain a plurality of cabinet units which are mutually independent; the cabinet units are transported into a machine room of the data center; the supports of the cabinet units are connected mutually in the machine room of the data center and line connection is conducted so as to complete the data center. According to the construction method of the data center, the modular installation mode is adopted, a traditional integrated support and cabinet installation method is changed, therefore, the construction period of the data center is short, construction of the data center is simple, a construction site is concise and the coordination performance of various construction works is good.

The invention relates to a bending limiter, and belongs to the technical field of production. The bending limiter comprises n round tubes and (n-1) connecting rings, wherein the two mutual adjacent round tubes are connected by one connecting ring, and the n is an integer greater than or equal to 2. The bending limiter provided by the invention has the advantages that the installation flexibility is high, and the replacement performance is good.

The present invention relates to a kit for manufacturing a modular sealing apparatus (2) for an Installation assembly (1), a modular sealing apparatus (2) comprising such kit and towards an Installation assembly (1) comprising such modular sealing apparatus(2), which Installation assembly (1) serves for accommodating a measuring insert (7). The kit comprises at least one piston (9), one bushing (11), and one sealing element (12), wherein the piston (9) and the bushing (11) are manufactured such that they are assembeable and serve to accommodate the measuring insert (7) by a bore (6) provided in the piston (9) and in the bushing (11), wherein the piston (9), when assembled with the bushing (11), is interactively connected with the bushing (11) such that a pressure transmitted by the piston(9) to the bushing (11) serves to deform the at least one sealing element (12), which is preferably arrangeable on at least one end of the bushing (11), and thereby, in the case of introduced measuring insert (7), to achieve a sealing action in order to seal the bore (6) extending through the piston (9) and the bushing (11), and wherein the kit comprises a failure detection unit (13) with at leastone sensing element (14a, 14b, 14c), which serves to detect at least one failure condition of the Installation assembly (1), and an electronics (15a, 15b, 15c) embodied such that it converts the at least one failure condition into a failure signal.

The invention relates to the technical field of bridge building construction, in particular to a temporary pier construction method. The method sequentially comprises the following steps: A: pouring a base used for supporting an assembled heavy steel pipe supporting device in a design position; B: according to a design requirement, making members of the assembled heavy steel pipe supporting device; and C: assembling the assembled heavy steel pipe supporting device on the base, wherein the height of the base ensures the assembled heavy steel pipe supporting device to have sufficient supporting strength, rigidity and stability vertically and horizontally. According to the scheme provided by the invention, the height of the base and the height of the assembled heavy steel pipe supporting device are coordinated, so that on the premise of ensuring the temporary pier to have reliable supporting strength, the construction difficulty of the temporary pier is lowered, the project time is shortened, and the construction cost and time are saved.

The invention discloses a dot slot type bubble combination which is formed by a support plate base, a hook groove and a hanging groove connection plate. The support plate base is an L-shaped folding plate, an adjusting connecting hole is formed in a straight plate of the support plate base, and the straight and a vertical plate are perpendicular to the transverse plate; the hook groove is an U-shaped groove with an upward opening, the hook groove is connected to the lower end of the straight plate of the support plate base, and the hook groove and the support plate base are of an integrated structure; the hook groove connection plate is a U-shaped groove with a downward opening, one end of a groove wall lateral plate downwards extends to form a long plate, and a back bolt connection hole is formed in the lower end face of the long plate. The dot slot type bubble combination is connected with an anchor bolt of an implantation base; a dot slot type structure mode is adopted for bearing loads of a decoration plate, three-dimensional adjustment on the decoration plate can be achieved through matched connection between an adjusting nut of the anchor bolt and an adjusting connection hole of the support plate base and between the hook groove and a hanging groove, and the dot slot type bubble combination is suitable for the building outer wall decoration plate dot hanging technology and suitable for the stone curtain dry hanging technology.

The invention discloses a multi-rope friction type lifter and a first rope replacing method thereof. The multi-rope friction type lifter comprises a friction wheel, a balance hammer, a cage, a lifting rope, a steady vehicle and a guide bracket; the balance hammer is arranged below the balance hammer; the cage is arranged below the friction wheel; the lifting rope comprises first ropes and a tail rope; the first ropes are wound on the friction wheel, and one end of each first rope is connected to the upper part of the cage, and the other end of each first rope is connected to the upper part of the balance hammer; the two ends of the tail rope are separately connected to the lower part of the cage and the lower part of the balance hammer separately; the plurality of the first ropes are arranged side by side; the steady vehicle comprises a rope winding wheel; a baffle plate extending in the circumferential direction of the rope winding wheel is arranged on the peripheral surface of the rope winding wheel for axially dividing the rope winding wheel into two rope winding wheel sections suitable for winding a to-be-replaced new rope; the guide bracket is arranged above the friction wheel; and two guide slide wheels which are in one-to-one correspondence to two rope winding wheel sections are arranged on the guide bracket. According to the embodiment of the invention, the multi-rope friction type lifter can improve first rope replacing efficiency and first rope replacing effect.

The invention discloses a nondestructive cleaning device of a graphic wafer capable of improving the cleaning uniformity. An ultrasonic/megasonic generation mechanism and a bottom quartz device which are clung from top to bottom are arranged in a shell seal cavity, wherein the bottom quartz device comprises connected annular quartz microresonator protection ring and quartz microresonator array; the quartz microresonator array comprises a plurality of vertical rodlike quartz structures; the lower end of a groove of the annular quartz microresonator protection ring extends outside from the lower end surface of the shell; the lower end surface of the quartz microresonator array is not higher than that of the groove and the lower end surfaces of the rodlike quartz structures have different heights; and ultrasonic/megasonic energy of which the propagation direction is not vertical to the surface direction of the wafer can be selectively removed through the quartz microresonator array and the ultrasonic/megasonic energy on the surface of the graphic wafer can be uniformly distributed, thereby achieving a uniform and nondestructive cleaning effect in a random region in the overall graphic wafer range within certain cleaning time.

The invention relates to the technical field of battery packs, and discloses an accommodating support shell, a battery pack and a vehicle. The accommodating support shell comprises an accommodating support shell side wall and an inner beam, the lower edge of the accommodating support shell side wall is provided with a support flanging extended inwards, one end of the inner beam is connected with the surface of the inner side of the accommodating support shell side wall, the other end of the inner beam is connected with the surface of the inner surface of the support flanging, an inner cavity is formed between the inner beam and the accommodating support shell side wall, and the inner beam comprises a transverse supporting beam portion. When assembling is performed, a battery module installation frame is located in the accommodating support shell and is lapped joint and fixed on the support flanging and the transverse supporting beam portion, when the battery pack is collided or extruded, the accommodating support shell can protect the installation frame to improve the protection and the safety, and the accommodating support shell is only needed to replace so as to reduce the latermaintenance cost, and the accommodating support shell can reduce the cost of the battery pack, can improve the safety and the replacement and can simplify the assembling flow.

The invention discloses an integrated cooker with a waste heat recovery function. The integrated cooker structurally comprises an integrated frame, wherein an operation table is fixedly arranged on one side of the integrated frame; heating devices are arranged on the upper side of the operation table, a front plate is fixedly arranged on the lower side of the operation table, and a storage deviceis arranged on one side of the front plate; a top plate is fixedly arranged on the upper side of the integrated frame, and a ventilation hole is formed in the top plate; and an upper inclined plate isarranged on the lower side of the top plate, an oil filtering device is arranged in the upper inclined plate, and a cleaning device is arranged on the lower side of the oil filtering device. The equipment adopts the design of the oil filtering device, the oil fume separation effect is improved by increasing the temperature difference between oil fume and an oil fume cooling pipe, and the practicability of the equipment is improved; the design of the cleaning device is adopted, and the oil fume cooling pipe is cleaned in time, so that the oil fume separation efficiency is improved, and the practicability of the equipment is improved; and the design of the heating devices and the storage device is adopted, and kitchen waste heat is used for heating water through a pipeline and a heat exchanger, so that the energy saving performance of the equipment is improved.

The invention discloses a total-pressure toilet bowl capable of realizing clingy surface flushing and internally encircling washing, which comprises a water inlet hole, a panel, a skirt, an inner ring groove, a pressure guiding tube, an overflow dam, a flushing opening and a blow-off opening. Water is fully filled in the pressure guiding tube continuously, total water supply pressure is transmitted to the flushing opening, the skirt controls a main flow to realize clingy surface flushing to the bottom of a toilet bowl, and seamless synchronous washing of the periphery of the toilet bowl is realized by the inner ring groove. The total-pressure toilet bowl resolves problems that an existing sanitary appliance cannot realize powerful washing, cannot wash edges, is replaced difficultly, is troublesome in production process, and the like.