18results about How to "Uniform expansion" patented technology

The high-strength three-way welding connection structure for the hydrogen conveying pipeline belongs to the field of three-way welding and comprises a base, two sliding grooves are formed in the upper surface of the base, first motors are fixed to the left side and the right side of the base correspondingly, and output shafts of the first motors penetrate into the sliding grooves and are fixedly connected with first screw rods; vertical frames are in threaded connection with the outer surfaces of the first screws, second motors are fixed to the opposite sides of the two vertical frames, and the opposite ends of output shafts of the two second motors penetrate to the opposite sides of the two vertical frames correspondingly. Supporting is provided from the inner wall of the three-way pipe through the supporting rollers, the transverse pipe positioning mechanism applies clamping force from the outer wall through the clamping blocks, a double-positioning structure of inner supporting and outer clamping is formed, it is ensured that three ports of the three-way pipe are strictly coaxial, and welding deflection is avoided; the clamping force can be automatically adjusted according to the small difference of the pipe diameters of the three-way pipes, the three-way pipes of different specifications can be rapidly matched through linear driving of the sliding frame and the air cylinder, and the universality is remarkably improved.

The utility model discloses a rescue air cushion convenient to carry, including box, air bag pad and movable board, the inside of box is provided with the cavity, and the one side of box is provided with the notched of being linked with the cavity, and the upper and lower both ends of notched inboard all are through the pivot respectively installed with roll axle no.

The utility model discloses a type II expanding agent metering and proportioning device which comprises a metering and proportioning barrel, an upper positioning seat is fixedly arranged at the bottom of the metering and proportioning barrel, a lower positioning seat covers the bottom of the upper positioning seat, and meanwhile, a lower barrel body is fixedly mounted at the bottom of the lower positioning seat; a metering and proportioning assembly is fixedly arranged on the circumferential side wall of the metering and proportioning cylinder and comprises a mounting seat fixedly arranged on the circumferential side wall of the metering and proportioning cylinder. According to the type II expanding agent metering and proportioning device, the weight of a liquid expanding agent in the metering and proportioning barrel is divided into three grades, and the weight ratio of the three grades in the metering and proportioning barrel is calibrated through three groups of sealing elements mounted on the outer side of a mounting seat; the time can be greatly saved; originally, the expanding agent needs to be weighed in several minutes before each disc of concrete is stirred, but now, the pre-quantified expanding agent can be directly used, so that the stirring period is shortened, and more prefabricated parts can be produced in unit time.

The present application relates to a kind of high elastic shaping underwear functional fabric production equipment and its production method, the technical field belongs to textile machinery technology, the technical problem to be solved is that conventional equipment is sprayed high elastic shaping underwear functional fabric, fabric is easily displaced, coating is uneven, including setting clamping component and tension component linkage, utilize mounting bracket and press wheel clamping fabric edge, support box expands fabric, ensure stable spraying, detection component scans and detects fabric flaw, winding frame synchronously winds fabric, the present application is prepared by equipment, installs spool etc. Step, utilize specific configuration to realize fabric stable expansion, uniform spraying, accurate flaw finding and automatic winding, guarantee fabric performance and quality, improve production automation degree.

The utility model relates to a kind of bush type air expansion shaft, comprising: always fill air expansion shaft;Bushing expansion piece is set in the large diameter end of the always fill air expansion shaft, and its outer ring is polygonal structure;And reel is set in the outside of the bushing expansion piece and is lifted inner wall by the edge of the polygonal structure when the bushing expansion piece tightens.Compared with prior art, the utility model has the advantages of preventing reel slip, improving winding stability, improving product yield, etc.

The invention provides a degradable zinc alloy intravascular stent which is of a tubular net structure and comprises a plurality of supporting rings (3) arranged in the axial direction and connecting rods (1) connected with the adjacent supporting rings (3). The supporting ring (3) is in a wave shape and is composed of a plurality of supporting rod units which are connected in sequence, each supporting rod unit comprises a first supporting rod in the middle and two arc-shaped parts connected to the two ends of the first supporting rod respectively, and wave crests or wave troughs of the supporting ring (3) are formed at the tops of the arc-shaped parts; every two adjacent supporting rod units are connected by sharing one arc-shaped part; the rod diameter (42) of the middle position (2) of the first supporting rod is W1, and the rod diameter of the first supporting rod is gradually increased from the middle position (2) of the first supporting rod to the arc-shaped parts at the two ends of the first supporting rod. The rod diameter (41) of the supporting ring (3) at the wave crest and the wave trough is W2, and W2 is larger than W1. The rod diameter (32) of the connecting rod (1) is W3, and W3 is smaller than W1.

The invention discloses a controllable thermal expansion preparation method of a graphene oxide layer. The controllable thermal expansion preparation method comprises the following steps: S1, preparing a modified graphene oxide precursor; s2, preparing a graphene oxide layer preform; s3, gradient heating controllable thermal expansion treatment is carried out; s4, post-treatment shaping is carried out; graphene oxide is modified through an amino silane coupling agent, amino functional groups are introduced, the interlayer acting force of graphene oxide is regulated and controlled, a precursor foundation is provided for subsequent controllable thermal expansion, and the problem that thermal expansion is uncontrollable due to the fact that the interlayer acting force of a traditional precursor is unstable is effectively solved; a gradient heating thermal expansion process is adopted, the heating rate and the constant temperature time are controlled in three stages, moisture removal, functional group decomposition and deep expansion are carried out in order, local excessive expansion or insufficient expansion caused by a single heating rate is avoided, and it is ensured that the graphene oxide layer expands uniformly and the pore structure is controllable.

The utility model discloses a numerical control machining tool magazine with a quick tool changing mechanism, and relates to the technical field of machining. Comprising a shell and further comprises clamping assemblies, the outer walls of the clamping assemblies and the outer wall of the shell are fixedly installed, the clamping assemblies are arranged in an annular array mode along the central axis of the shell, the outer walls of the clamping assemblies are fixedly connected with installation assemblies, and the installation assemblies are arranged in an annular array mode along the central axis of the shell; according to the tool magazine, the clamping assembly is arranged, a unique pneumatic structure is applied, and by means of the air inlet header pipe, the air inlet ring pipe, the air inlet branch pipes, the mounting pipe and the air distributing pipe, air can be rapidly inflated into the fixed bag and the circular bag, so that a tool can be firmly clamped within a short time, and the tool changing efficiency is improved; the waiting time in the machining process is shortened, and the purpose of the numerical control machining tool magazine with the quick tool changing mechanism is achieved.

The utility model relates to a kind of artificial valve, the artificial valve includes valve frame, valve leaflet;The valve leaflet is arranged in the valve frame;The valve frame includes multiple double-grid structures, the double-grid structure includes first grid unit and second grid unit being adjacent in the circumferential direction or axial direction of the valve frame;Wherein one double-grid structure and adjacent another double-grid structure circumferential dislocation, axial interface.It is prevented that the valve frame is expanded in axial and / or circumferential direction instantaneously by the above-mentioned setting when the valve frame is inflated and expanded by balloon, so that the double-grid structure is mutually restrained in the axial and / or circumferential direction of the valve frame, to avoid the distortion of the strut of the valve frame when balloon inflation and expansion reach initial critical pressure.

The utility model relates to fireproof glass technical field, and disclose a kind of fireproof glass partition with sound insulation and heat insulation function, this fireproof glass partition with sound insulation and heat insulation function, including upper steel main keel, the outside of upper steel main keel is provided with lower steel main keel, the outside of upper steel main keel is provided with fireproof glass, the outside of lower steel main keel is equipped with steel adjustable base, the outside of upper steel main keel is provided with steel glass gland, the outside of upper steel main keel is provided with adjusting mechanism.This fireproof glass partition with sound insulation and heat insulation function, fireproof glass is placed to the middle of two fireproof outer rubber strip, the edge of fireproof glass is sealed, and steel glass gland is better fixed fireproof glass by adjusting screw, different thickness fireproof glass is fixed, and screw is fixed lower steel main keel, upper steel main keel, guarantee the stability of overall keel frame.

The utility model relates to spring processing technical field, concretely relates to a spring processing is with the spring winding device of convenient adjustment, including connecting plate, display panel and support leg, the outside fixed connection of connecting plate has drive motor, the upper movable joint of connecting plate has movable axle, the upper movable joint of connecting plate has the drum shell, the below fixed connection of connecting plate has storage box, the upper fixed connection of connecting plate has movable frame, make the connecting gasbag inflation through starting the delivery pump, the restriction of connecting gasbag through pulling spring, carry out even inflation, adjust the size of drum shell, insert the steel wire into movable shell, through starting drive motor, wind the steel wire in the drum shell outside, through starting movable hydraulic rod, carry out the direction of steel wire, after spring winding is completed, through rotating and dismantling bolt and movable bolt, dismantle the drum shell of one side, move left to spring, dismantle spring.

This invention relates to the field of steel plate welding technology, specifically to a steel plate butt welding device, including a base and a processing table, as well as a welding mechanism, a heating mechanism, a beveling mechanism, and a splicing mechanism. The splicing mechanism includes a drive assembly, two feeding plates, and two clamping assemblies. The beveling mechanism includes a bidirectional electric push rod, a position adjustment assembly, two grinding discs, and two swinging assemblies. A support column is fixedly provided on the top of the base. The heating mechanism includes a telescopic assembly, a first sliding assembly, and four electric heating plates. The welding mechanism includes a welding torch, a second sliding assembly, and two traction assemblies. This steel plate butt welding device of the present invention prevents visual errors caused by manual beveling based solely on experience, improves the adjustment accuracy of the grinding disc tilt angle, further improves the beveling accuracy, ensures the uniformity of the beveling of the two steel plates, and prevents problems such as incomplete penetration, welding deformation, and undercut, thereby improving the butt welding effect of the two steel plates.

The invention provides a double-coating-layer modified silicon-based negative electrode material and a preparation method thereof, a negative electrode and a lithium ion battery. The double-coating-layer modified silicon-based negative electrode material comprises a porous silicon core, a carbon coating layer and a lithiated vulcanized polyacrylonitrile coating layer, pores of the porous silicon core are filled with the carbon coating layer, the outer surface of the porous silicon core is coated with the carbon coating layer, and the surface of the carbon coating layer is coated with the lithiated vulcanized polyacrylonitrile coating layer. The lithiated sulfurized polyacrylonitrile coating layer can promote uniform lithiation of the porous silicon core in the charging process while inhibiting volume expansion of the porous silicon core in the charging process. Besides, the carbon coating layer and the lithiated sulfurized polyacrylonitrile coating layer can synergistically prevent the porous silicon core from being in contact with an electrolyte, so that continuous consumption of lithium ions is avoided, coulombic efficiency is improved, and the technical problems of huge volume expansion of the silicon-based negative electrode in the charge-discharge cycle process and serious side reaction with the electrolyte are solved.

This invention discloses a plastic bottle blow molding system and method, relating to the field of plastic packaging molding technology. The system includes a zoned precision preheating mechanism, a multi-stage air-blowing stretch blow molding mechanism, an internal and external composite cooling mechanism, and a PLC control mechanism, arranged sequentially along the preform processing direction. The method includes preform conveying, zoned precision preheating, multi-stage air-blowing stretch blow molding, internal and external composite cooling, and demolding. This invention improves the preform temperature control accuracy to within ±1℃ and reduces wall thickness deviation to within ±0.05mm through independent cooling at the bottle mouth, 5-segment axial zone heating, and PID closed-loop temperature control. The precise synchronous coordination of three independent air paths with the stretch rod movement solves molding defects such as wrinkles and pitting. Synchronous cooling through a double-spiral reverse cooling channel outside the mold and a through-type cooling channel inside the stretch rod shortens the molding cycle from 3-4 seconds to 2-2.5 seconds.

This invention relates to a device and method for testing the airtightness of airbags in air-shield dams, belonging to the field of airtightness testing technology. It includes a main body, an airbag disposed between clamping plates, an injection pipe on one side of the main body, an air outlet on one side of the airbag, a locking assembly between the injection pipe and the air outlet, a stirring assembly inside the injection pipe, and a clamping assembly on one side of the lead screw. This invention achieves automatic opening of the air passage during docking and bidirectional automatic sealing during separation through plug-in self-sealing, preventing gas leakage and blocking impurities such as water vapor and dust from entering the air passage and the airbag interior. Combined with a mechanical locking structure using inclined plane transmission, it can resist the impact of inflation pressure and the tensile force generated by airbag deformation, ensuring that the interface remains secure and does not detach throughout the process. This eliminates external leakage not caused by the airbag itself, ensuring that the test results accurately reflect the airbag's sealing state and significantly reducing the probability of misjudgment.

The invention relates to an electrode assembly, a battery monomer, a battery and a power utilization device, the electrode assembly comprises pole pieces and diaphragms, each diaphragm comprises a main body section, and the pole pieces and the main body sections of the diaphragms are stacked and wound to form an electrode main body; at least one axial end of the electrode main body is provided with a tab protruding out of the main body section; the at least one layer of diaphragm comprises a first extension section connected with the main body section, and the first extension section is wound outside the electrode main body for at least one circle; the first extension section is provided with a convex part protruding out of the main body section along the axial end part, and at least part of the convex part is folded towards one side close to the center of the electrode main body so as to cover the edge part of the tab at the corresponding end. The first extension sections are wound at all positions of the electrode main body in the axial direction, so that the radiuses or diameters of all parts of the electrode assembly can be ensured to be the same, all parts of the electrode assembly are uniformly expanded when the electrode assembly is expanded, the outer ring pole piece is not easy to break, and the use performance of the battery monomer is ensured.

The application relates to the technical field of glass blowing machines, and more particularly discloses a blowing machine for glassware manufacturing, which comprises a circulating positioning processing frame, the front surface of the inner side of the circulating positioning processing frame is fixedly connected with an adjusting assembly, the outer side of the circulating positioning processing frame is fixedly connected with a blowing assembly, and the circulating positioning processing frame comprises a circulating positioning ring; in the working process of the application, first, an air injection pipe is connected with a gas compressor, then in the working process, the bottle opening of a glass embryo is sleeved on the outer side of a clamping ring, then the glass clamping assembly is operated to tighten the clamping glass embryo, air pressure in the air cavity formed by the sliding sleeve, the pressure lifting plate, the connecting ring plate, the air pressure pipe and the pressure control valve reaches a set value, and then air is injected into the glass embryo, when the air is continuously injected into the glass embryo, the glass blank is uniformly expanded under the action of the air pressure, and the glass embryo is blown into a specified product.