31results about How to "Large elastic range" patented technology

The carrier (3) has a rotation lock (8) designed such that the carrier is releasably connected by rotational movement around a rotational axis (A) relative to a main body (2), where the carrier is releasably fastened at the main body. The rotation lock is designed such that rotational movement takes place against a rotation direction of a releasing roller (1). The rotation lock is formed such that the lock rotates against a rotation direction of the releasing roller. A hook-shaped connector (9) comprises an aperture (32) for insertion of a spring element (11) i.e. plate spring. An independent claim is also included for a releasing roller.

The present invention relates to a spring structure and a method for manufacturing same, and more specifically, to a spring structure and a method for manufacturing same, the spring structure comprising: a support portion having a non-spring structure provided on both ends or on one end of the spring structure; and a coil-shaped spring portion comprising multiple coil-shaped unit springs having the same inner circumference and vertical central axis that are each connected to the support portion, so that a wire forming one of the coil-shaped unit springs is positioned between a wire forming another coil-shaped unit spring so as to be positioned adjacently thereto in an overlapping alignment with a regular vertical distance therebetween, thereby providing the support portion and the coil-shaped spring portion that are integrally formed.

The invention discloses a microbial specimen preservation and conveying device which comprises a double-layer preservation and conveying frame, a non-corrosion-resistant microbial specimen conveying and preservation container, a direct culture medium cultured microbial specimen conveying and preservation container, an anaerobic conveying culture medium microbial specimen conveying and preservationcontainer and an aerobic conveying culture medium microbial specimen preservation container; the transverse center and the longitudinal center of the lower-layer preservation and conveying frame of the double-layer preservation and conveying frame are provided with anaerobic conveying culture medium microbial specimen conveying and preservation container channels respectively; a sliding rail is arranged in each anaerobic conveying culture medium microbial specimen conveying and preservation container channel; and the ends of the sliding rails are provided with switches respectively. By adopting the microbial specimen preservation and conveying device, microbial specimen can be placed in specimen preservation containers with different storage conditions in a classifying manner, so that medical workers can quickly collect and convey specimens, the survival rate of the specimens is high, and pain of the patients caused by sampling again is relieved.

The invention discloses a wood spring and a preparation method thereof. The spring is made of bent wood, and the wood is a dense structure formed by closely arranged wood cell units, and the wood cell unit is a solid structure composed of nanocellulose fibers. The preparation method of the present invention is as follows: firstly, through the process of removing lignin, wood with part of lignin removed is obtained, then the wood is treated in N,N dimethylacetamide / lithium chloride solution, twisted and shaped, dried, Get wood springs. The present invention has prepared a wood spring for the first time, which has an adjustable elastic range and excellent environmental friendliness. The whole preparation process is simple, low energy consumption, and can be applied to many types of wood. The prepared wood spring has a wide range of applications. .

The invention relates to a combined fluidized bed slag cooler, which comprises a body, a wind box, an air distributing device, a slag inlet pipe, a slag outlet pipe, an air inlet pipe and an air outlet pipe. The body is provided with the slag inlet pipe, and the bottom of the body is connected with the slag outlet pipe. The lower part of the body is provided with the air distributing device and connected with the wind box of the air inlet pipe, and the top of the body is connected with the air outlet pipe. The slag outlet pipe is provided with a spraying pipe for air intake inside to make thethree working areas with different flowing states formed from the lower part to the upper part in the body, the lower part is a spraying area, the middle part is an annular fluidizing area, and the upper part is a suspending and settling area. The upper side of the spraying pipe is provided with a guide pipe. The outlet of the slag outlet pipe is provided with a mechanical slag outlet valve or a conveyor. The transverse and longitudinal mixing of gas-solid two-phase in the bed is obviously strengthened under the coaction of spraying air and fluidizing air. The problems of poor transverse mixing, easy accumulation of local bed materials, delamination, aggregation and the like of the fluidized bed slag cooler are solved. The furnace slag granules can be sufficiently and effectively cooled. The combined fluidized bed slag cooler is used for cooling bottom slag of a CFB boiler or other high-temperature solid granular materials.

The invention relates to a process for preparing a sodium sulfate and magnesium nitride compound fertilizer by processing astrakhanite, which comprises the following steps of: mixing the astrakhanite, ammonium sulfate with water to form a mixed system; enabling the composition of the mixed system to be on the connecting line of an astrakhanite composition point and an ammonium sulfate compositionpoint of an Na2SO4-MgSO4-(NH4)2SO4-H2O system phase diagram at the temperature of 25 DEG C; then, reacting at the constant temperature of 25 DEG C, and then, separating the magnesium nitride compoundfertilizer by crystallization to obtain a mother solution B; then, adding Na2CO3 to the mother solution B; reacting at the room temperature to separate magnesium carbonate crystal by crystallization to obtain a mother solution C; performing cooling crystallization on the mother solution C at the temperature of 0 DEG C to separate Na2SO4.10H2O crystal by crystallization to obtain a mother solutionD; adding the astrakhanite, the ammonium sulfate and the water to the mother solution D; and reacting at the temperature of 25 DEG C to separate the magnesium nitride compound fertilizer by crystallization. The compositions and the mass percent compositions of the mother solutions meet the composition range of the mother solution B, and the mother solutions can be circularly produced. The processfor preparing the sodium sulfate and magnesium nitride compound fertilizer by processing the astrakhanite has the advantages that no waste liquor or waste residue or waste gas is discharged, generated little magnesium carbonate is also an important chemical raw material, and no environmental pollution is generated.

The invention relates to an accelerometer, which comprises a magnetic pole piece with a ring structure. There is a yoke in the magnetic pole piece. Permanent magnets are symmetrically arranged in the middle of the magnetic pole piece structure and on both sides of a small translation axis. pull coil; the small axis of translation extends out of the magnetic pole piece, copper cores are installed at both ends, and displacement sensor windings are arranged on both sides of the copper core; permanent magnets, magnetic pole pieces, yokes and push-pull coils constitute an electric force generator, and The pulling coil, the small translation shaft and the copper core form the sensitive mass, and the leaf spring is used to support the sensitive mass. The accelerometer of the present invention is supported by a metal leaf spring with high longitudinal rigidity and low axial rigidity to support the sensitive mass, fundamentally improving the ability of anti-shock and anti-vibration, and will not break under extreme shock conditions.

The invention discloses an elastic measuring head in a three-dimensional micro-nano contact scanning probe. The elastic measuring head is characterized in that: a cross suspension piece is arranged in the center of a fixed circular ring; a cantilever spring plate is connected to the arm end of each cantilever in the cross suspension piece, and the other end of each cantilever spring plate is connected with the fixed circular ring to form a suspension structure of the cross suspension piece in the fixed circular ring; on a side plane, towards the inside of a cylinder body, of the cross suspension piece, a center plane reflective mirror is arranged in the center of the cross suspension piece, and a cantilever plane reflective mirror is arranged on the arm end part of at least one cantilever which is positioned at the cross suspension piece; and on a side plate, towards the outside of the cylinder body, of the cross suspension piece, a scanning probe is fixedly arranged in the center of the cross suspension piece, and a measuring ball positioned at the foremost end of the scanning probe is fixedly arranged on the end part of the scanning probe. The elastic measuring head disclosed by the invention can obtain detection effects with wide measuring range, high accuracy, high sensitivity and small measured force.

The invention discloses a three-dimensional micro nanometer contact scanning probe, which is characterized in that in the front section of a cylinder, a Michelson interferometer is fixedly arranged in an installation box; in a rear section of the cylinder, a two-dimensional sensor is fixedly installed on an installation plate; a fixing ring is arranged at the front end of the front section of thecylinder, a cross suspension sheet is arranged in the center of the fixing ring, each cantilever of the cross suspension sheet is connected with the fixing ring through each cantilever spring sheet to form a suspension structure, a central planar reflection mirror and at least one cantilever planar reflection mirror are respectively positioned on the cross suspension sheet, emergent light of the Michelson interferometer is projected on the central planar reflection mirror, emergent light of the two-dimensional sensor is projected on the cantilever planar reflection mirror, and on one side plane of the cross suspension sheet towards the outside of the cylinder, the scanning probe is fixedly installed in the center of the cross suspension sheet. The three-line structured light machine vision width measurement method can acquire detection effects with large range, high accuracy, high flexibility and small measurement force.

The invention discloses an ignition device for a liquid ramjet engine. The ignition device comprises an igniter, an oil supply pipe, a gas supply pipe, a front shell, a rear shell, an expanding pipe and a flame stabilizer. The front shell and the rear shell are fixedly connected, and the igniter is arranged at the joint of the front shell and the rear shell and can be conveniently mounted. The oil supply pipe penetrates through the outer wall of the front shell, stretches into the front shell and is fixedly connected with the igniter. The gas supply pipe penetrates through the outer wall of the front shell, stretches into the front shell and is fixedly connected with the igniter. The expanding pipe is fixedly connected with the igniter. The flame stabilizer is fixedly connected with the expanding pipe. According to the ignition device, it can be guaranteed that a pioneer torch which is not prone to extinguishing is formed in the ramjet engine under the high-speed air flow condition, and the torch is used for igniting oil-gas mixtures in a combustion chamber so that the engine can normally work.

The invention provides a beam strengthening method and belongs to the technical field of building restoration. The beam strengthening method comprises the steps of selecting a core material of a beam which is strengthened by a core embedment method, strengthening the core material, and strengthening the beam by using the core material through the core embedment method after strengthening the core material. According to the beam strengthening method, the core material adopted for the core embedment method is further strengthened, the probability that the bearing capacity of the core material gets closer to the original bearing capacity of the beam is increased, the range of elasticity of the material is widened, high-strength materials are utilized more fully, and the material characteristics are performed; the ultimate bearing capacity is improved, and the structural distortion is reduced; occurrence of cracks of timber in a tensioned region is delayed, and the ductility is improved; the rigidity of the steel-concrete beam is enhanced. Therefore, according to the beam strengthening method, on the premise that external decorations of structural parts are not destroyed and affected, and the mechanical performance index of the core material can be resorted to the mechanical performance index of the original beam.

The invention relates to an energy-absorbing steering column, which comprises a steering shaft, an input shaft and an energy-absorbing device; the steering shaft is sleeved with the input shaft, and the steering shaft is cooperated with the input shaft only through axial movement; wherein, a ring cavity is arranged at the sleeve position of the steering shaft and the input shaft; the ring cavity comprises an inner-surface ring concave part at the steering shaft sleeve part and an outer-surface ring concave part at the input shaft sleeve part; the energy-absorbing device is a spring ring; the spring ring is sleeved on the input shaft in the ring cavity. The energy-absorbing steering column has the advantages of obvious impact and energy-absorbing effects, simple structure, easy assembly and convenient maintenance.