25results about How to "Increase wall thickness" patented technology

The invention discloses an electronic expansion valve and an air conditioning system, and relates to the technical field of electronic expansion valves.The electronic expansion valve comprises a first valve needle and a valve port assembly, the valve port assembly comprises a connecting base, a valve port ring and a pressing sleeve, the connecting base comprises a limiting part, a connecting part located below the limiting part and a hollow inner cavity, and the valve port ring is arranged in the inner cavity; the valve port ring is arranged in the inner cavity and abuts against the limiting part, the pressing sleeve is connected with the connecting part, the valve port ring and the limiting part axially press the valve port ring, the valve port ring is provided with a valve port communicated with the inner cavity, the first valve needle is movably arranged on the connecting base, and the second valve needle is movably arranged on the connecting base. And a flow path through which the connecting seat is communicated with the valve port is opened and closed. The technical scheme provided by the invention aims to solve the problems of separation and internal leakage of the sealing ring caused by insufficient limiting of the sealing ring by a valve port piece under the condition of a large-diameter valve port of the electronic expansion valve.

The utility model discloses a thermal power plant air preheater with nickel titanium alloy function coating belongs to air preheater technical field, a thermal power plant air preheater with nickel titanium alloy function coating includes the shell, a layer nickel titanium alloy function coating covers the shell outside, the heat exchange subassembly is rotationally arranged in the shell, the shell upper and lower sides are provided with the air inlet, the air outlet, the smoke outlet and the smoke inlet respectively with heat exchange subassembly intercommunication, this technical scheme can set up nickel titanium alloy function coating, can prevent the wall thickness thinning of air preheater because of abrasion, reduce the air preheater's air leakage rate, improve equipment overall integrity, and then reduce the maintenance use cost, can reduce the environmental pollution caused by the abrasion problem of air preheater simultaneously.

The inner wall cleaning structure of the pharmaceutical barrel comprises a hollow column, a valve is installed on the outer surface of the upper end of the hollow column, the valve is connected with a connecting pipe through a high-pressure hose, and a hollow disc used for being installed at the movable end of an electric push rod is installed at the open end of the connecting pipe. A plurality of vertical holes penetrating through the hollow disc are annularly formed in the edge of the upper surface of the hollow disc at equal intervals, straight pipes are inserted into the vertical holes, a plurality of small holes are formed in the outer surfaces of the straight pipes, rectangular pipes are arranged on the upper sides of the vertical holes, pistons are installed at the upper ends of the straight pipes, and the pistons are installed in the rectangular pipes in a sliding mode. A piston is installed on the upper surface of the straight pipe, a U-shaped plate is installed on the upper surface of the piston, the U-shaped plate is clamped on the rectangular pipe, and the end, away from the piston, of the U-shaped plate is in threaded connection with a positioning screw used for limiting the relative position of the U-shaped plate and the rectangular pipe. The application range is expanded.

The utility model discloses a hollow type hydraulic motor drive shaft, including drive shaft body, drive shaft body includes input and output, is equipped with the second spline on the output, and the one end of input is away from the output and is equipped with the first spline, and the inside drive shaft is equipped with the stepped through -hole along the axial direction, and the through -hole includes first aperture section, second aperture section and transition section, and first aperture section is located at the input, and second aperture section is located at the output, and the diameter of first aperture section is less than the diameter of second aperture section, and transition section links first aperture section and second aperture section, and the oil circuit through -hole is set up on the output, and one end of oil circuit through -hole is communicated with transition section, the utility model discloses reasonable in structure, and the diameter of first aperture section is smaller, can strengthen the intensity of input, and the diameter of second aperture section is larger, and the external executing mechanism is convenient for connecting, and finally uses transition section to link two aperture sections, and balances the pressure difference to a certain extent through oil circuit through -hole, and strengthens the overall strength of drive shaft.

The application discloses a cylinder-wall-oil-through anti-rotation multi-stage hydraulic oil cylinder and relates to the technical field of hydraulic oil cylinders. The cylinder-wall-oil-through anti-rotation multi-stage hydraulic oil cylinder comprises a cylinder body, a cylinder barrel, a piston rod, a cylinder bottom cover, a primary guide sleeve, a secondary piston, a secondary guide sleeve and an inner piston, the cylinder body is provided with a first piston cavity, the cylinder barrel is provided with a secondary piston cavity, at least one cylinder barrel is sequentially sleeved in the cylinder body, the piston rod is sleeved in the innermost cylinder barrel, the axis of the first piston cavity is parallel to the axis of the cylinder body, the axis of the secondary piston cavity is parallel to the axis of the cylinder barrel where the secondary piston cavity is arranged, the axis of the secondary piston is parallel to the axis of the cylinder barrel connected with the secondary piston, and the axis of the inner piston is parallel to the axis of the piston rod connected with the inner piston. The cylinder-wall-oil-through anti-rotation multi-stage hydraulic oil cylinder realizes reliable anti-rotation of the multi-stage oil cylinder, increases the oil cylinder stroke, is convenient to process and install, has strong universality and is suitable for hydraulic operation scenes, such as a gallery drilling machine, that need to be prevented from rotating.

The utility model provides a bearing device facilitating assembly of a glass fiber reinforced plastic inner cylinder and a chimney, and belongs to the technical field of steel chimneys. According to the technical scheme, the reinforcing structure is characterized by comprising a supporting structure fixed to the inner wall of a steel outer cylinder, a bearing ring structure fixed to the outer wall of a glass fiber reinforced plastic inner cylinder and erected on the supporting structure, and a reinforcing boss fixed to the outer wall of the glass fiber reinforced plastic inner cylinder and located above the bearing ring structure; the glass fiber reinforced plastic inner cylinder has the technical effects that the glass fiber reinforced plastic inner cylinder can be pushed into the steel outer cylinder during assembly, the bearing ring structure is erected on the supporting structure and is attached to the supporting structure, the supporting structure plays a role in bearing, and the glass fiber reinforced plastic inner cylinder is hung in the steel outer cylinder through the bearing ring structure and the supporting structure; the assembly difficulty of the sleeve chimney adopting the glass fiber reinforced plastic inner cylinder is reduced; the load of the glass fiber reinforced plastic inner cylinder is transmitted to the steel outer cylinder through the supporting structure, and the overall stability of the chimney is improved.

The invention provides an offshore wind power pile foundation design method considering a pile sinking effect and soil response, and relates to the technical field of offshore wind power engineering.The method comprises the steps that the marine environment of a target sea area, a fan structure and initial pile foundation design parameters are obtained; pile sinking disturbance factors are calculated based on the parameters, and then actual mechanical parameter distribution of the soil body after pile sinking is determined; calculating a coupling response coefficient based on the distribution, and correcting a pile-soil interaction model according to the coupling response coefficient; carrying out dynamic response analysis on the pile foundation under long-term cyclic loading by utilizing the corrected model, and calculating the displacement, the internal force and the accumulated rotating angle of the pile foundation; and comparing and checking a calculation result with a design allowable value, and obtaining a final design scheme through iterative optimization. According to the method, coupling analysis of the pile sinking effect and the power response in the service period is achieved, and the safety and economical efficiency of design are improved.

The utility model discloses a high -strength tee bend pipe fitting relates to tee bend pipe fitting technical field, this high -strength tee bend pipe fitting, including the main pipe body and the pipe body of the perpendicular main pipe body axis setting, the pipe body and the main pipe body's junction area are equipped with the composite reinforcing rib, the pipe body middle wall thickness is greater than two end wall thickness, the main pipe body junction area wall thickness is greater than end wall thickness, the composite reinforcing rib includes radial reinforcing rib, axial reinforcing rib and transition reinforcing rib, the inner wall middle part of pipe body is equipped with the flow guide block in the position department of main pipe body, the utility model discloses a composite reinforcing structure is set up in the junction area of stress concentration, and the junction area wall thickness increases, and the flow guide block divides main pipe body fluid, and acts as internal support structure and external composite reinforcing rib together, forms the composite strengthening system of inside supporting outside hoop, and the anti -deformation ability and fatigue life of pipe fitting under high pressure working condition are improved significantly.

This invention provides a flexible gear and a harmonic reducer having the same. The flexible gear has a cylindrical structure and includes a transmission part. Along the axial direction of the transmission part, the inner peripheral wall of the transmission part has a segmented structure, and the segmented structure includes at least a first shaft segment, a second shaft segment, and a third shaft segment connected in sequence. The average wall thickness of the transmission part at the second shaft segment is not only greater than the average wall thickness of the transmission part at the first shaft segment but also greater than the average wall thickness of the transmission part at the third shaft segment. The outer peripheral wall of the transmission part has external teeth. The first and third shaft segments have unequal inner diameter structures, while the second shaft segment has a constant inner diameter structure. Along the direction from the first shaft segment to the third shaft segment, the inner diameter of the first shaft segment gradually decreases, and the inner diameter of the third shaft segment gradually increases, making it easier for the outer ring of the flexible bearing to be pressed into the inner side of the second shaft segment, and the outer ring of the flexible bearing is interference-fitted with the second shaft segment. This increases the wall thickness of the transmission part at the external teeth, improves the load-bearing strength of the external teeth, and solves the problem of easy cracking of the side wall of the transmission part at the external teeth.

The utility model provides a distributor which comprises a distributor body, the distributor body at least comprises a liquid inlet part, a liquid separation part and a liquid outlet part, the liquid inlet part is provided with a liquid inlet channel, and the distributor body is integrally formed; a throttling part and an upper transition part connected with the throttling part and the liquid inlet part are arranged between the liquid inlet part and the liquid separation part; a lower transition part is arranged between the throttling part and the liquid separation part, a throttling channel is formed in the throttling part, and the diameter of the throttling channel is smaller than that of the liquid inlet channel; the interiors of the upper transition part and the lower transition part are of cavity structures, the liquid separation part comprises a cylindrical cavity, and a sprue spreader is arranged in the cylindrical cavity; the liquid outlet part is provided with a plurality of liquid outlets; the throttling part, the upper transition part and the lower transition part are formed through a rolling process, and the wall thickness of the throttling part is larger than that of the cylindrical cavity; the throttling part is prevented from being bent by increasing the wall thickness of the throttling part.

The utility model discloses a kind of heat shrink tube for energy storage field, including pipe body and its corrugated main pipe wall.The main pipe wall is formed by the first, second surface of interval arrangement, forms the alternate distribution of wave crest and wave trough.The setting of wave crest in convex, wave trough in concave, cooperate parallel and mirror image symmetry surface arrangement, both ensure that stress uniformity, and significantly improve bending resistance.Innovative double-layer winding structure (inner tube+outer tube) can realize at least five kinds of functional state: completely coincident state provides maximum mechanical strength;Completely separated state forms high-efficiency heat insulation cavity;Partially superimposed state realizes the balance of strength and flexibility;Specific overlapping state optimizes stress distribution.The design is innovated through structure, while maintaining wall thickness, so that product has excellent mechanical properties, heat insulation effect and working condition adaptability, especially suitable for the reliability requirement strict energy storage application scene.

The utility model relates to an electric water heater, it includes shell body, inner container spare and blocking material piece, inner container spare and blocking material piece set up in the installation inner chamber, and the one end of blocking material piece is connected with inner container spare, wherein, the peripheral side of blocking material piece forms and has reinforced outer edge, and reinforced outer edge extends to the direction close to inner container spare, the design of reinforced outer edge can increase the structural strength of blocking material piece, reduce its deformation after receiving the foaming action force, can also reduce the wall thickness of blocking material piece, save production cost, reduce the weight of blocking material piece, in addition, still can increase the connecting contact area with shell body, the installation positioning of blocking material piece in shell body is convenient, improves the connection stability of blocking material piece.

The utility model relates to the technical field of engine compartment trim panel, concretely relates to an automobile engine compartment side trim panel, including trim panel piece main body, the periphery on trim panel piece main body one -sided face is provided with first edge protruding, second edge protruding, the inside symmetry of first edge protruding is provided with partition protruding, partition protruding divides trim panel piece main body end face and presents rectangular structure's first area, second area and third area, the inside of first area, second area and third area is provided with the first reinforcing protruding assembly and second reinforcing protruding assembly of oblique arrangement, the inside of second edge protruding is provided with divergent reinforcing protruding assembly, the inside of first edge protruding, second edge protruding is provided with honeycomb reinforcing rib on trim panel piece main body, the utility model discloses have better structural strength and rigidity while lightening, make it not easy to appear deformation and fracture and so on phenomenon because of stress.

The application discloses a kind of anti-freezing optical unit and anti-freezing optical cable based on negative thermal expansion composite material, belong to optical cable manufacturing technical field, including optical fiber and the loose sleeve of optical fiber outer periphery;Loose sleeve wall is equipped with negative thermal expansion composite structure, negative thermal expansion composite structure extends along the axis of loose sleeve and circumferentially distribution, and with loose sleeve through co-extrusion and form integrated structure;Negative thermal expansion composite structure is made of negative thermal expansion composite material, negative thermal expansion composite material includes negative thermal expansion particle, and the thermal expansion coefficient of negative thermal expansion nanoparticle is negative, to produce radial expansion force under low temperature environment, offset part of centripetal pressure generated by matrix shrinkage, so that the radial stress of optical fiber is substantially reduced even close to zero, to reduce even eliminate the microbend loss of optical fiber.The anti-freezing optical unit and anti-freezing optical cable based on negative thermal expansion composite material of the application, simple structure, easy to manufacture, can be compatible with existing optical cable production line, and the modification cost is low.

The invention relates to the technical field of thermal power equipment, and discloses a peripheral sparse column steel frame of a washing and absorbing two-tower-in-one structure, which comprises a steel column inner frame, a steel column outer frame and a horizontal support structure: the steel column outer frame and the steel column inner frame are both of a square frame structure, and the horizontal section is rectangular; the central tower is arranged in the peripheral sparse column steel frame; the steel column inner frame is arranged on the outer side of the center tower in a surrounding mode, and the steel column outer frame is arranged on the outer side of the steel column inner frame in a surrounding mode. The steel column inner frame and the steel column outer frame are connected and fixed through a horizontal supporting structure. A plurality of rows of horizontal platforms and a plurality of columns of steel latticed columns are arranged on the peripheral sparse column steel frame, and a large cubic space is formed between the two rows of horizontal platforms and the two columns of steel latticed columns; and each layer of filler in the central tower and the pipelines outside the tower transmit loads to the peripheral sparse column steel frame. According to the invention, the occupied area is reduced, the height and the capacity of the tower are increased and the like while the water washing tower and the absorption tower are integrally arranged, the space is relatively wide, and the possibility of collision with a pipeline can be reduced.

This invention discloses an additive manufacturing-based inertial amplification nonlinear low-frequency vibration isolation metamaterial structure, vibration isolation device, and its performance control method. The vibration isolation metamaterial structure includes a rhombic frame structure, an inertial amplification unit, and a square spring structure. The square spring structure is arranged within the rhombic frame structure, with its two ends connected to a pair of opposite corners of the rhombic frame structure. The elastic extension direction of the square spring structure is parallel to the diagonal of this pair of opposite corners of the rhombic frame structure. The inertial amplification unit has a centrally symmetrical structure, including a rigid rod, two counterweights, and two diagonal rods. The center of symmetry of the inertial amplification unit, the center of the rhombic frame structure, and the center of the square spring structure all coincide in projection. Therefore, the vibration isolation metamaterial structure of this invention significantly widens the bandgap range and enhances low-frequency vibration isolation performance, exhibiting excellent performance in suppressing longitudinal waves in the 0-1000Hz low-frequency range, increasing vibration damping, and energy absorption.

The utility model discloses a kind of reinforced cylinder liner carbon scraping ring structures, conical carbon scraping ring structure includes the carbon scraping ring inlayed in the carbon ring inlaying groove of cylinder liner body, carbon scraping ring includes carbon discharge conical surface, carbon discharge conical surface is set in the form of small end downwards, and carbon discharge conical surface is used to automatically discharge carbon deposit.The reinforced cylinder liner carbon scraping ring structure of the utility model is good at the defect that existing technology cannot automatically remove carbon deposit.

The embodiment of the utility model discloses clothes treatment equipment which comprises a first roller, at least two second rollers, a heat pump system and a base, the at least two second rollers are arranged at intervals in the left-right direction and located below the first roller, and the diameter of the second rollers is smaller than that of the first roller; the heat pump system comprises a drying tunnel shell communicating with the first roller and the at least two second rollers, an evaporator and a condenser, the evaporator and the condenser are arranged in the drying tunnel shell, the drying tunnel shell is at least partially arranged between the at least two second rollers in the left-right direction, and the second rollers are arranged on the base. According to the embodiment, the first roller and the at least two second rollers share the drying tunnel shell, and the sharing of the drying tunnel shell means that a hot air supply system does not need to be independently designed for each roller, so that the internal space of the equipment is saved, the size and complexity of the clothes processing equipment are reduced, the equipment is more compact, and the overall complexity and cost of the equipment are also reduced.

This utility model discloses an expansion-locking polyethylene micro-jacking pipe, including a pipe body; its characteristic is that it also includes a joint made of cast iron, a partition set on the joint, a spigot end set on the joint and inclined on both sides of the partition, a socket end set at the pipe end and adapted to the spigot end, and limiting stops set on both sides of the upper part of the partition to limit and block the pipe body. This utility model, by using a cast iron joint, connects adjacent pipe bodies through the cast iron joint. Due to the higher strength of cast iron, the wall thickness of the cast iron spigot only needs to occupy 1 / 6 to 1 / 4 of the total wall thickness, while the plastic socket can retain a larger wall thickness, ensuring strong pressure resistance at the connection between the pipe body and the joint. During use, the connection will not deform due to pressure, thus preventing leakage at the connection due to deformation and improving the sealing performance of the connection.

The utility model relates to machine tool foot technology field discloses a high bearing's machine tool foot structure, including fixed seat and locking portion, is equipped with the adjusting stud on the fixed seat, the inside thread tube is connected with the adjusting stud outside thread, the inside of adjusting stud can be connected with the locking portion thread, still including bearing portion and butt joint portion, bearing portion is located in the inside thread tube top, is equipped with the containing portion of butt joint portion placement and rotation on bearing portion, the top and bottom of containing portion all appear open setting, the wall thickness of bearing portion is greater than 8mm, the top of butt joint portion is equipped with the through -going hole of butt joint portion for locking portion and passes through. The utility model, can greatly increase the wall thickness of stress point, make it not easy to appear plastic deformation's phenomenon to can satisfy the use demand of long time of large -scale machine tool, can increase the contact area with machine tool under the action of butt joint portion to the stability of improved connection, simultaneously, under the structure setting of modularization can conveniently carry out the operation of dismounting and installing.

The utility model belongs to hand massage device field, specifically disclose a kind of hand massage device, including finger cot, and the open end of one end of finger cot, control part and control assembly in control part are equipped on finger cot, first vibration motor is also equipped in control part, and first vibration motor is electrically connected with control assembly, control part is equipped on the outside of finger cot, second vibration motor is equipped on the side of finger cot, second vibration motor is fixed between the outside and the inside of finger cot, and second vibration motor is electrically connected with control assembly;The technical scheme can realize hand massage device to reduce the wall thickness of finger cot, also avoid the body feeling of unilateral overvoltage of finger cot, also promote the convenience of visual operation, and satisfy the massage demand of the massage of multiple parts of finger, palm and five finger joints.

This utility model relates to the technical field of thermal pipeline maintenance, and in particular to a secondary circulating water purification device for a thermal system heat exchange station. The device includes a main body, which is cylindrical with a wall thickness of 8mm. An inlet pipe, an outlet pipe, and a slag discharge pipe are installed on the main body. An end cap is also installed on the main body via a fixing mechanism. An anode is installed on the end cap via an installation mechanism. An automatic air vent valve for pressure relief is also installed on the end cap. This application has the advantages of increasing the concentration ratio of circulating water to achieve water conservation; removing scale, sterilizing, eliminating algae, and preventing corrosion without adding any chemicals, resulting in no pollution; automatic operation without manual supervision, greatly reducing labor costs; small footprint, simple operation, easy handling, and low power consumption.

The invention relates to the technical field of batteries, and provides a thermal insulation material for batteries and a thermal insulation pad for batteries, the thermal insulation material for batteries comprises a binding material and hollow microspheres, the particle size of the hollow microspheres is marked as A [mu] m, and A is less than or equal to 100; the wall thickness of the hollow microspheres is marked as B [mu] m, and A and B satisfy 4 < = A / B < = 400; a doping material in the hollow microspheres comprises at least one of silicon dioxide, sodium oxide, calcium oxide and boric oxide; the interior of the hollow microsphere is not communicated with the outside. According to the thermal insulation material provided by the invention, the small-particle-size closed-pore hollow microspheres are adopted, and the proportion of the particle size to the wall thickness of the hollow microspheres is further controlled, so that the inhibition on heat convection can be enhanced, the heat conduction of the hollow microsphere material can be reduced, and meanwhile, the structural stability of the thermal insulation material in a medium-high temperature environment is considered; therefore, the heat insulation performance is obviously improved. The thermal insulation material and the thermal insulation pad for the battery prepared from the thermal insulation material can meet the thermal insulation requirement of the medium-high temperature thermal runaway battery.

This invention relates to a multi-dimensional dynamic jet soot blowing device for boiler flues, comprising a flue wall and a soot blowing device body. The device includes components such as a track, support base, nozzle, compressed air tank, and controller. The support base slides along the track, driving the nozzle to extend and retract. The nozzle can rotate to adjust the spray angle, achieving soot blowing throughout the entire flue without dead angles. The nozzle is connected to a gas delivery hose via a rotating pipe joint, ensuring a good seal and effectively preventing gas leakage. The equipment employs a gear and rack transmission structure, combined with a limit switch and servo motor, to precisely control the nozzle's extension and retraction stroke, rotation angle, and speed. It also presets three commonly used spray angles for accurate positioning. The device supports both automatic and manual control modes, offering simple operation and ensuring personnel safety. A dust baffle is installed at the flue inlet, and an automatically resetting baffle is provided at the nozzle outlet to prevent dust overflow and backflow. The inclined design at the nozzle's front end prevents high-pressure airflow from impacting the flue wall. The overall structure is pressure- and impact-resistant, and assembly and maintenance are convenient.