31results about How to "Easy and cheap to make" patented technology

The invention relates to the field of chemical energy storage devices such as super capacitors, batteries and the like, and particularly discloses a composite material based on nanometer, a preparation method of the composite material and application in a flexible energy storage device, which solve the problem that common energy storage devices are difficult to be bent and deform. Nanometer active materials are compounded with flexible fibers, high-energy-storage characteristics of the nanometer active materials and excellent flexibility of flexible fiber materials are integrated, the quality percentage of the nanometer active materials ranges from 0.1% to 40%, the rest components of the composite material are the flexible fibers, the flexible nanometer composite material in a three-dimensional communication network structure is formed, furthermore, the composite material can be used as an electrode active material and a current collector simultaneously so as to be assembled to form the bendable flexible energy storage device, higher specific capacity can be realized under a bending condition and is equivalent to that when the flexible energy storage device is not bent, and the composite material can be expected to be applied to the field of flexible devices in the future.

Packages for an integrated circuit die and methods and leadframes for making such packages are disclosed. The package includes a die, a die pad, peripheral metal contacts, bond wires, and an encapsulant. The die pad and contacts are located at a lower surface of the package. The die pad and the contacts have side surfaces which include reentrant portions and asperities to engage the encapsulant.A method of making a package includes providing a metal leadframe having a die pad in a rectangular frame. Tabs extend from the frame toward the die pad. The die pad and tabs have side surfaces with reentrant portions and asperities. A die is attached to the die pad. The die is electrically connected to the tabs. An encapsulant is applied to the upper and side surfaces of the leadframe. Finally, the leadframe is cut in situ so that the die pad and tabs are severed from the frame, the sides of the package are formed, and the package is severed from the leadframe.

Composite metal powder for sintered bearings, prepared by coating surface layers of particles of iron powder with 10 wt.% to less than 30 wt.% of copper based on the iron powder so that the particle size of the coated iron powder is at most 80 meshes, the content of the powder of at most 350 meshes is at most 30%, and the specific surface area of the powder is 450-750 cm<SP>2< / SP> / g according to the subsieve sizer method. This metal powder can provide an oil-retaining bearing for motors, which is capable of providing a low gas-permeability without decreasing the oil content and which has a low and constant coefficient of friction, a high corrosion resistance, a high adaptability and a high durability, readily at a low cost.

The invention provides a folding table, which comprises a height regulation device capable of easily and reliably regulating height from a leg or a top plate to the ground, while the folding table obtains reliable and stable using and folding states to the top plate. A locking connecting rod is arranged, and the locking connecting rod comprises a clamping part clamping or unclamping in a clamping groove. The clamping part of the locking connecting rod forms a plate on a same plane with the locking connecting rod. A peripheral surface on an upper end of a connection component is configured a same plane of a rotation area of the clamping part.

The invention provides a storage element and terminal fabricating method which simplifies the structure of an external terminal and realizes simple and cost-saving manufacture. A storage element includes: the external terminal (14) having an exposed surface which is exposed to the outside from an envelope (1, 3), a current collector (13) which is contained inside of the envelope (1, 3) and is connected to the external terminal (14), and a power generating element (2) which is contained inside of the envelope (1, 3) and is connected to the current collector (13). The external terminal (14) includes: a flat portion exposed to the outside; and a shaft (31) projecting from the flat portion to the inside of the envelope and being connected to the current collector (13).

The invention discloses a terahertz high-resolution rapid imaging device based on block compressed sensing, which comprises the following steps of: the terahertz wave generated by the terahertz radiation source passes through a square aperture to define a beam size, and the terahertz wave is incident to the imaging object at a vertical angle; the imaging object and the metal mask plate are placedin parallel in an optical path; the imaging object is sequentially placed in the optical path under the driving of the two-dimensional displacement platform, light waves with the imaging object information are received and measured by the terahertz wave detector after transmission modulation of the metal mask plate, and a reconstructed image of the part of the imaging object can be obtained by inputting the obtained data into a compressed sensing reconstruction program; and after all the blocks of the imaging object are placed in the optical path and imaging, the whole imaging result can be obtained by splicing the images of all the blocks according to the corresponding order on the complete image. According to the terahertz high-resolution rapid imaging device based on block compressed sensing, block imaging the object to be tested and re-splicing to realize the image reconstruction by means of the matrix modulation wide beam, avoiding the problem of the detector saturation and the decline of the calculation efficiency of the reconstruction algorithm.

The invention provides a buffer device and a folding table.The buffer device is simple in structure, wherein the manufacture is easy and inexpensive, and the small-sized lightweight is realized. Meanwhile, the waste treatment is performed.The folding and unfolding operation of the folding table is performed by the buffer device.The folding table is easy in structure, wherein the manufacture is easy and inexpensive, the small-sized lightweight is realized and the design is improved while ensuring the operation to be smooth and safe.A telescopic action member can be movably accommodated in the main body of the buffer device. One end of the action member is connected to a load part.The load part can be displaced.when the load part is displaced, the movement of the action member can be braked or buffered.A movable body accommodated inside the main body can move along the axial direction thereof and the action member is movably accommodated inside the movable body.A retainer of a tapered portion is arranged at the circumferential surface of the movable body.When the action member is moved, the tapered portion is detachably inserted between a clamp part arranged inside the main body and the circumferential surface of the action member.

A forming pocket, which is suitable for receiving particulate material and forming conglomerates from the particulate material to be used as absorbent padding for hygienic products, comprises: an external forming substrate (3) which is suitable for receiving the particulate material, which is provided with openings and has a shape conjugated to the form of the absorbent padding to be made; a grid-shaped supporting structure (10; 30), which is couplable with the external substrate (3) to support the external substrate (3) during suction of the particulate material through the external substrate(3) and comprises a curved external face (11), intended for contact with the external substrate (3) and of a shape conjugated to the shape of the external substrate (3), an internal face (12), opposite the external face (11), a pair of greater side faces (13) that are opposite one another and a pair of lesser side faces (14) that are opposite one another, and through openings (17a, 17b, 18a, 18b)extending between the external face (11) and the internal face (12) to enable a gas to flow from the external face (11) to the internal face (12) during suction. A method for making the forming pocket comprises making at least one external layer (15) of the supporting structure (10; 30) and at least one internal layer (16) of the supporting structure (10; 30) that are superimposed and have respectively external openings (17a, 17b) and internal openings (18a, 18b) bounded by external walls (19a, 19b) and by internal walls (20a, 20b), in which the external openings ( 17a, 17b) and the internalopenings (18a, 18b) are arranged superimposed so as to define said through openings (17a, 17b, 18a, 18b); and in which the method further comprises making at least one of the external openings (17a, 17b) of a different shape and / or dimension from one of the internal openings (18a, 18b) on which it is superimposed by using a layer additive manufacturing process, i.e. 3D printing to make the external walls (19a, 19b) and the internal walls (20a, 20b).

The invention discloses a method for eutectic soldering of a large substrate on a tube shell, particularly relates to the technical field of welding of the large substrate, and aims at solving the problems that dislocation is easily generated in the welding process of an existing tube shell and the large substrate and the welding voidage is high. The method for eutectic soldering of the large substrate on the tube shell is specifically carried out according to the following sequence: selecting a proper lithography mask according to the specification of the large substrate; electroplating a film at one side of the large substrate; carrying out lithography processing on the film of the large substrate by employing a lithography machine and the lithography mask to obtain a grid-shaped large substrate; fixing the tube shell, a soldering lug and the grid-shaped large substrate through a welding clamp and then carrying out welding in an eutectic furnace; and carrying out welding effect inspection on the welded grid-shaped large substrate.

The invention discloses a preparation method for tert-butyl carbazate, which comprises the following steps that: hydrazine hydrate and isopropyl alcohol are added into a reactor first, agitation is started and temperature is reduced; BOC acid anhydride and isopropyl alcohol are delivered to a high-position agitation and dropping tank and the evenly agitated mixed liquid is slowly dropped into the reactor; a brine pump is shut down after the mixed liquid is completely dropped and normal temperature agitation is conducted; isopropyl alcohol is distilled, dichloromethane is added, anhydrous sodium sulfate is added, room temperature agitation is conducted, sodium sulfate is filtered, the dichloromethane washes the anhydrous sodium sulfate and the sodium sulfate is dried in a pumping way; and distillation is conducted to recover dichloromethane, normal hexane is added, agitated and dissolved, the obtained solution is delivered to a crystallization kettle, cooling, agitation and crystallization are conducted, products are separated out through centrifugation and the products are vacuum-dried to obtain the tert-butyl carbazate. The invention has the advantages that the material selection is scientific, the proportion is proper, the method is simple and the method is suitable for industrialized production; the reaction time is short, the recovery rate is high and the product quality is high; the environmental pollution is reduced, and the cost is low and the tert-butyl carbazate can be conveniently prepared by low cost.

This propeller with a small duct is characterized by comprising the following: a propeller (10) which is attached to the stern of a ship hull (1); and a duct (20) attached in front of said propeller (10). Said propeller with a small duct is further characterized in that: the diameter (Ddin) of the duct (20) is 20% to 50% of the diameter (Dp) of the propeller (10); and the pitch (H) of the propeller (10) decreases progressively in the radial (R) direction, with the maximum pitch at the bases of the blades and the minimum pitch at the tips of the blades. By using an energy-efficient device that combines characteristics of large ducts and mid-sized ducts, adjusting the shape of the propeller (10), and disposing the small duct (20) near the front of said propeller (10), cavitation is reduced in ocean areas in which the degree of loading is increased, and interference from the small duct (20) is utilized to optimize the load distribution in the radial (R) direction of the propeller (10), which controls efficiency.

The present invention provides a method for adsorbing trace lead ions in water. According to the present invention, phosphoric acid is adopted to modify and activate attapulgite, the modified attapulgite and chitosan are matched according to a mass ratio of 1:1-1:1.5, the raw material and an acetic acid solution are subjected to mixing standing, a hold preparing agent and a cross-linking agent are prepared, the mixed solution is subjected to a cross-linking hole preparing reaction, vacuum suction filtration is performed to prepare microspheres, the microspheres are treated through a Soxhlet extractor, and vacuum drying is performed to achieve a constant state. With the method of the present invention, the safety problem of the lead ion-containing drinking water in the daily life is solved, such that the hidden danger on the human body safety due to the water pollution can be eliminated, the human body safety can be ensured; and the attapulgite and the chitosan have characteristics of rich source and low price, the production of the composite is simple and low-cost, and the method has the promotion effect in the field of water treatment, and has the industrialization prospect.

The invention discloses a silicone negative pressure drainage apparatus, and belongs to the technical field of medical appliance. The silicone negative pressure drainage apparatus comprises a silicone air bag and a drainage pipe. An air bag seal cover is arranged on the top of the silicone air bag in a combination mode, a drainage pipe port, a liquid exhaust port and a gas exhaust port are arranged on the silicone air bag, wherein the drainage pipe port, the liquid exhaust port and the gas exhaust port are communicated with the air bag cavity of the silicone air bag. A plug cover piece is sleeved on the liquid exhaust port or the gas exhaust port, a first plug cover and a second plug cover are arranged on the plug cover piece, the first plug cover is matched with the gas exhaust port, the second plug cover is matched with the liquid exhaust port, one end of the drainage pipe is connected with the drainage port in a matching mode, and the other end of the drainage pipe is provided with liquid collecting holes which are communicated the pipe cavity of the drainage pipe in a dense state. The silicone negative pressure drainage apparatus has the advantages of being labor-saving and fast to operate, convenient and cheap to manufacture due to the fact that the silicone negative pressure drainage apparatus is in no need of using a spring as an existing technology, capable of achieving multi-channel drainage, and shortening drainage time of a patient.

The invention discloses an anti-leakage garbage compression box which comprises a crank arm, a telescopic mechanism, a garbage box body and a rear door. A garbage pouring-out opening is formed in therear end of the garbage box body, and a garbage pouring-in opening is formed in the front end of the garbage box body; the top of the rear door is hinged to the top of the rear end of the garbage boxbody, and the crank arm is hinged to the outer side wall of the rear end of the garbage box body; a branch arm of the crank arm is hinged to a telescopic shaft of the telescopic mechanism, and an opening groove is formed in the other branch arm; and a lower door hook is arranged on the outer side wall of the rear end of the garbage box body, one end of the lower door hook is fixedly connected withthe rear end of the garbage box body, and a locking shaft and a driving shaft are fixed at the bottom of the rear door. When the telescopic mechanism drives the rear door to be closed through the crank arm, the locking shaft is buckled with the lower door hook, and when the telescopic mechanism drives the rear door to be opened through the crank arm, the locking shaft is separated from the lowerdoor hook. The anti-leakage garbage compression box has the advantage that sewage in the garbage box body can be prevented from leaking to the road surface, so that secondary pollution of sewage in the transportation process is avoided, and the ideal effect is achieved.

An apparatus connectable to a slot antenna comprising signal processing circuitry for transmitting and / or receiving radio frequency (RF) waves comprises a substantially planar conductive antenna element (23) having a slot (25) feeding and receiving locations are respectively placed on opposite sides of said slot (25); a substantially planar RF ground plane conductor is generally placed substantially parallel to said planar conductor antenna element; a ground connector connects said ground plane conductor to said ground point; and a feed connector connects said signal processing circuit to said feed point, wherein said antenna device is connectable to said radio communication equipment, so that said ground plane conductor will be placed at said between said conductive antenna element (23) and said signal processing circuitry to effectively shield said signal processing circuitry from said transmitted and / or received RF waves.

An apparatus for calibration of an electronic instrument, such as a vector network analyzer, includes a number of calibrator connector elements for connection to the instrument, and a plate element including a plurality of calibration waveguide structures. The plate element has conductive surfaces, and the calibrator connector elements and conductive surfaces include periodic structures disposed with respect to each other such that gaps are formed between them. An interface enables interconnection of a waveguide of a calibrator connector element, a waveguide of the instrument, and a calibration waveguide structure. The apparatus includes a driving unit and controller for moving the plate element and / or the calibrator connector element to connect the calibrator connector element to different calibration waveguide structures.

A forming cavity adapted to receive particulate material and form therefrom an agglomerate of absorbent fillings for use in hygiene articles, comprising: an outer forming matrix (3) adapted to receive said particulate material, said an outer forming matrix provided with openings and having a shape corresponding to the form of the absorbent filling to be produced; a grid-like support structure (10; 30) coupled to said outer matrix (3), to support the outer matrix (3) during suction of particulate material through the outer matrix (3), and includes a A curved outer surface (11) of the shape, an inner surface (12) opposite to said outer surface (11), a pair of larger sides (13) opposite to each other and a pair of smaller sides (14) opposite to each other, and through openings (17a, 17b, 18a, 18b) extending between said outer surface (11) and said inner surface (12) to allow gas to flow from said outer surface (11) to said inner surface (12) during suction the inner surface (12). A method for making a forming cavity, comprising: making at least one outer layer (15) of said support structure (10; 30) and at least one inner layer (16) of said support structure (10; 30), The outer layer and the inner layer are superimposed and have an outer opening (17a, 17b) and an inner opening (18a, 18b) bounded by an outer wall (19a, 19b) and an inner wall (20a, 20b), respectively, wherein the The outer openings (17a, 17b) and the inner openings (18a, 18b) are superimposed to define the through openings (17a, 17b, 18a, 18b); wherein the method further includes making an outer opening superimposed thereon One of said inner openings (18a, 18b) has at least one outer opening (17a, 17b) of different shape and / or size, and said outer wall ( 19a, 19b) and said inner wall (20a, 20b).

The invention relates to a fluid container (1) for releasably connecting to a vehicle component (2), wherein the fluid container (1) has at least one fastening extension (4, 5) with an opening (6, 7)which is aligned with a plug-through opening (8) in the vehicle component (2), and the connection is secured by a locking pin (3) which can be stretched into the plug-through opening (8) and the opening (6) and / or opening (7) and can be locked in an end position by a rectilinear plug-in movement in a plug-in direction (S); in order to increase the load-bearing capacity of the connection and to simplify the installation, it is proposed according to the invention that the fastening extension (4, 5) has a locking device (9, 10) which is arranged aligned with the respective opening (6, 7), and thelocking device (9, 10) comprises at least two elastically springable tabs (11, 12, ..) which act in a latching manner on a thickened locking portion (18) of the locking pin (3) and thereby secure thelocking pin (3) in the axial direction thereof.

The invention provides a buffer device and a folding table.The buffer device is simple in structure, wherein the manufacture is easy and inexpensive, and the small-sized lightweight is realized. Meanwhile, the waste treatment is performed.The folding and unfolding operation of the folding table is performed by the buffer device.The folding table is easy in structure, wherein the manufacture is easy and inexpensive, the small-sized lightweight is realized and the design is improved while ensuring the operation to be smooth and safe.A telescopic action member can be movably accommodated in the main body of the buffer device. One end of the action member is connected to a load part.The load part can be displaced.when the load part is displaced, the movement of the action member can be braked or buffered.A movable body accommodated inside the main body can move along the axial direction thereof and the action member is movably accommodated inside the movable body.A retainer of a tapered portion is arranged at the circumferential surface of the movable body.When the action member is moved, the tapered portion is detachably inserted between a clamp part arranged inside the main body and the circumferential surface of the action member.

Two components (4, 2) are arranged at the upstream side and the downstream side of a paper path formed near a paper discharge opening (3) of a printer. A portion of a paper guide member (5) formed by bending an elongated sheet at two to three positions is inserted between the gap of a portion at which the two components are joined, and the remaining portion of the paper guide member is left in the paper path. That part of the paper guide member (5) which is left in the paper path is held projecting toward the paper path from the component (5) placed on the downstream side of the paper path, and this causes paper discharged to be moved toward the paper discharge opening (3) while being guided by the paper guide member (5).

The invention relates to a lithium ion battery which comprises a cover body, wherein the cover is provided with a web plate; the web plate is provided with an upper web plate plane and a lower web plate plane which are approximately in parallel; a round through hole, which is defined by the wall and is basically perpendicular to the web plate planes, is arranged in the web plate; the wall is provided with a radial inward edge and comprises an annular body; the annular body is provided with an upper annular plane and a lower annular plane which are in parallel, a central hole and a central shaft, which is packaged in the hole and vertically extends out of the planes; and the annular body is also provided with bevel edges, which are symmetrical about the parallel planes which have equal intervals with the upper and lower planes. The invention is characterized in that the inward edge of the wall, which defines the through hole, form a flange; and the diameter of the annular body is greater than that of the through hole of the web plate.