42 results about "Space cloth" patented technology

The utility model belongs to the technical field of test boxes, and particularly relates to a high-low temperature test box with uniform heating. Comprising test cavities which are arranged in a test box at intervals left and right; a placement net plate is embedded in the bottom of the test cavity; the fans are arranged below the placing net plate in a bilateral symmetry manner; the air inlet end of the fan is communicated with the test cavity through the placing screen plate, and the air outlet end of the fan is communicated with the air duct cavity; the air duct cavities are distributed on the left side wall and the right side wall of the test cavity in a bilateral symmetry manner; a spoiler is vertically and obliquely arranged in the air duct cavity, and an air distribution plate is arranged at the air return end of the air duct cavity. According to the utility model, through the arrangement of the spoiler and the air distribution plate in the air duct cavity, high and low temperature airflow with uniform airflow distribution can be provided for the interior of the test cavity, so that the temperature rise rates of different areas are consistent, and the uniform heating effect during product testing is further improved.

The utility model discloses a water-blocking buffer power cable protection structure which comprises a wire core conductor, a sleeve layer is arranged on the outer side of the wire core conductor, a wrapping layer is arranged on the opposite outer side of the wire core conductor, buffer sleeves are annularly arranged on the sleeve layer at intervals, the interior of each buffer sleeve is hollow to form a buffer cavity, a water-blocking pad is circumferentially arranged along the outer side of the wrapping layer, and the water-blocking pad is arranged on the outer side of the wrapping layer. And the outer sleeve layer is close to the outer sleeve layer and is locally embedded in the peripheral part of the wrapping layer. According to the utility model, the wrapping layer and the sleeve layer which are staggered and matched are sequentially arranged outside the wire core conductor, and the water-blocking pad is arranged on the sleeve layer close to the outer side and partially embedded at the periphery of the wrapping layer, so that the waterproofness of the power cable is effectively improved, and meanwhile, the water-blocking pad is matched with the buffer sleeves which are annularly arranged on the sleeve layer at intervals, so that the waterproof performance of the power cable is improved. Deformation force in different directions after the cable is twisted can be borne, the bending position of the power cable is protected, and the practicability of the cable is improved.

The utility model discloses a self-supporting tensile lead-in wire for overhead laying, which comprises two conductors and a supporting wire which are arranged at intervals and are jointly wrapped in a high-density polyvinyl chloride outer sheath layer, and the high-density polyvinyl chloride outer sheath layer forms a Y-shaped connecting rib on an interval section between the two conductors and the supporting wire. The conductor comprises a stainless steel monofilament inner core, a plurality of tinned copper wire stranded conductor layers are arranged outside the stainless steel monofilament inner core, the diameter of the conductor ranges from 0.6 mm to 1 mm, the thickness of an insulating layer formed by the high-density polyvinyl chloride outer sheath layer outside the conductor is not smaller than 1 mm, the supporting wire is a galvanized steel wire stranded wire, and the diameter of the supporting wire ranges from 1.2 mm to 1.4 mm. The lead-in wire has better bending resistance and tensile performance, reduces deformation and wire breakage of the conductor, has self-bearing performance, is suitable for overhead laying, and has better durability.

Conductor frame (10) for electrically contacting stator windings (114) of a three-phase stator (110) comprising: an annular base body (12) with a top (12a) and a bottom (12b); three connection contacts (40) for electrically contacting a respective stator phase (P1, P2, P3) to an inverter (240) on the inverter side, wherein the connection contacts (40) are arranged on the top (12a); several axially insulated conductor planes (20) arranged in the annular base body (12), wherein the conductor planes (20) extend several times in the circumferential direction.(6) have spaced-apart conductor sections (22); several electrically conductive contact elements (30) extending axially through the annular base body (12), which are arranged radially spaced from the conductor sections (22), wherein the contact elements (30) are arranged distributed in the circumferential direction (6); wherein the conductor planes (20) further have conductor tongues (24) projecting radially from the conductor sections (22), which electrically connect the conductor sections (22) to the contact elements (30), wherein the conductor tongues (24) are arranged such that the conductor planes (20) and the contact elements (30) provide an electrical connection of the stator phases (P1, P2, P3) between the contact elements.(30) and the connection contacts (40), wherein at least some of the several contact elements (30) are designed for electrical contact with the stator windings (114), wherein the conductor frame (10) further comprises a connection device (50) which is electrically connected to the connection contacts (40) for electrical contacting a respective stator phase (P1, P2, P3) to the inverter (240), wherein the connection device (50) comprises a housing, three main lead pins and three cables for electrical connection between the main lead pins and the connection contacts (40), wherein the main lead pins are fixed in the housing and project from the housing in an axial direction (2), and wherein the connection device (50) is floatingly attached to the annular base body (12).

The utility model belongs to the technical field of wires and cables, and provides an anti-strand-jumping cable, which comprises at least three core wires, a belting layer and an outer sheath, the core wires at least comprise two specifications, each core wire comprises an insulating layer arranged on the outermost side, zigzag bulges are formed on the outer wall of each insulating layer, the zigzag bulges are arranged at intervals along the axial direction of the core wires, and the outer sheath is arranged on the outer wall of each core wire. The core wire is at least meshed with the zigzag bulge of the other core wire; the belting layer is arranged outside the core wire, and the space between the core wire and the belting layer is filled with filler; and the outer sheath is arranged outside the belting layer. According to the utility model, the core wire is positioned in the outer sheath; secondly, installation and arrangement can be completely carried out according to conventional operation specifications in the process of integrated cabling, so that the difficulty of integrated cabling is reduced, the original arrangement mode can be kept even if the cable is longitudinally extruded or bent, and the strand jumping phenomenon is avoided; the three insulating layers are made of polyvinyl chloride and polyamide nylon materials, the weight of the cable is reduced, and the cable is light in weight.

The invention discloses a self-powered displacement-acceleration sensing system for a bridge based on hybrid energy collection. The hybrid energy collection device converts wind energy into electrical energy and then passes through a power management circuit to convert it into a DC voltage to power the remaining units. The hybrid energy collector includes a ball with a FEP surface, a coaxially sleeved and rotatable cone cylinder 1, cone cylinder 2 or spindle cylinder 1, spindle cylinder 2, and upper and lower blades with opposite torsional directions. The outer wall of the upper cylinder, the inner wall of the lower cylinder, and the upper and lower blades are all provided with multiple tracks to accommodate the ball, and the tracks of the upper and lower cylinders are connected end to end. The inner wall of the upper cylinder is attached with grid-shaped copper electrodes at intervals in the circumferential direction, and polyester fiber wool is arranged in the gap. The coil embedded in the bottom surface of the upper cylinder cooperates with the permanent magnet embedded in the bottom surface of the lower cylinder. The outer wall of the lower cylinder is evenly and staggeredly attached with multiple nylon films and PTFE films in the circumferential direction. The invention realizes the self-power supply of the sensing system and ensures the continuous and stable operation of the self-powered displacement-acceleration sensing system for the bridge.

The invention discloses a bridge self-powered strain sensing system based on friction nano-power generation and electromagnetic power generation, wherein a wind energy conversion device converts wind energy into electric energy and then converts it into direct current through a power management circuit to power the remaining units; the wind energy conversion device comprises a ball with a surface of FEP, an upper cylinder and a lower cylinder which are coaxially sleeved and rotatable, an upper fan blade is fixedly connected to the outer wall of the upper cylinder, and the cylinder and the fan blade of the lower cylinder are fixedly connected through ribs, and the upper and lower fan blades are twisted in opposite directions; a plurality of inclined rails are provided on the outer wall of the upper cylinder, the inner wall of the lower cylinder, and the upper and lower fan blades to accommodate the ball; a grid-shaped copper electrode is attached to the inner wall of the upper cylinder at intervals in the circumferential direction, and polyester fiber wool is arranged at intervals in the gap; a plurality of coils are embedded in the circumferential direction of the upper cylinder, and a plurality of permanent magnets are embedded in the circumferential direction of the lower cylinder; a plurality of nylon films and PTFE films of the same number are attached to the outer wall of the lower cylinder at uniform and staggered intervals in the circumferential direction. The invention realizes the self-power supply of the strain sensing system, and ensures the continuous real-time monitoring of the strain of the bridge structure.

The utility model discloses turnover type steel bar anti-pollution magnetic suction cloth which comprises outer layer protective cloth (1), inner side limiting cloth (2) and adsorption strips (3). The adsorption strips (3) are sewn on the inner side face of the outer layer protective cloth (1) through the inner side limiting cloth (2), and the multiple adsorption strips (3) are arranged on the outer layer protective cloth (1) at intervals. And the outer-layer protective cloth (1) wraps the outer side of a reserved steel bar (4) of the reinforced concrete column in a surrounding manner, so that the adsorption strips (3) can be correspondingly adsorbed on the reserved steel bar (4). The utility model relates to the technical field of building construction, and can solve the problems that a surrounding and wrapping plastic film in the prior art is easy to damage and cannot be turned over, and white garbage is easy to generate.

The application provides a three-dimensional interdigital electrode and a preparation method thereof. The preparation method comprises the following steps: firstly, depositing metal layers and sacrificial layers alternately on a surface of a substrate, and the number of the metal layers is at least 2; then, forming three-dimensional alloy microcolumn arrays penetrating along the thickness direction of the multilayer structure by heating; starting from the side of the multilayer structure away from the substrate along the thickness direction, subtractively processing the multilayer structure, so that a two-dimensional interdigital structure is arranged on the multilayer structure; finally, oxidizing and dissolving the components of the sacrificial layers in the alloy microcolumns and the sacrificial layers, so that a three-dimensional porous microcolumn array can be obtained, and a three-dimensional porous microcolumn array electrode is formed; at least two metal layers connected by the three-dimensional porous microcolumn array and arranged at intervals along the thickness direction can be obtained, each metal layer is provided with a two-dimensional interdigital structure, and the three-dimensional porous microcolumn array at least penetrates the two-dimensional interdigital structure in the metal layer. The production process is simplified, the production cost is reduced, and the detection performance is improved.

This invention discloses a bending fatigue enhancement structure for flat cables, relating to the field of flat cable technology. It includes a wear-resistant outer sheath, a flexible skeleton, an elastic inner liner, and a composite conductor bundle. The wear-resistant outer sheath covers the flexible skeleton, with bending stress cores at the outer ends. The flexible skeleton is internally covered by an elastic inner liner, which contains two spaced-apart composite conductor bundles. The flexible skeleton has grooves filled with an anti-oxidation coating layer, within which the bending stress cores are fixed. The interior features stress-dispersing adhesive grooves intersecting with the grooves, and high-toughness reinforcing ribs with abrasion-resistant protective sleeves are installed at the four corners. The elastic inner liner has a water-blocking tape wrapping layer on its outer side and a flame-retardant isolation layer inside. The composite conductor bundles are wrapped with cable core fixing rings and an electromagnetic shielding layer. This structure, through multiple stress dispersion, protection, and positioning designs, significantly improves the cable's bending fatigue resistance, ensuring stable transmission and safe operation, and is suitable for high-frequency bending scenarios.

This application belongs to the technical field of winding devices and discloses a tension control structure for a polyester filament winding device, including a base plate, a mounting frame, a winding roller, a drive motor, a fixed frame, a guide roller, a lifting frame, a tension roller, and a threaded rod. A rotating shaft, with its lower end connected to the upper end of the threaded rod, is vertically rotatably mounted on the fixed frame. A lower ring is fixedly sleeved on the rotating shaft. A connecting frame is provided at the top of the fixed frame, and a mounting tube arranged concentrically with the rotating shaft is provided on the connecting frame. An upper ring is vertically slidably mounted on the mounting tube. Two circumferentially spaced grooves are formed on the bottom surface of the upper ring, and a protrusion that mates with the grooves is provided on the top surface of the lower ring. Rotating the rotating shaft causes the lower ring to rotate, causing the protrusion to disengage from the groove and push the upper ring upwards. When the protrusion aligns with the next groove in the rotation direction, the upper ring falls back to its original position, and the protrusion and groove re-engage. Each up-and-down reciprocating motion of the upper ring corresponds to a half-turn rotation of the rotating shaft and the threaded rod.

The utility model discloses a sampling mechanism for a copper foil lug material. The sampling mechanism comprises a mounting frame, the turntable is rotationally mounted on the mounting frame through a rotating shaft, and a handle is connected to the end of the rotating shaft and used for driving the turntable to rotate; the driving device is mounted on the turntable; the air swelling shaft is linked with the driving device; the lug winding roller is connected to the outer portion of the air swelling shaft in a sleeving mode and used for winding the lug in a matched mode; according to the ear material sampling device, when an ear material needs to be sampled, only the standby roller and the running ear material winding roller need to be switched, meanwhile, connection between the ear material and the ear material winding roller is cut off, the standby roller can replace the ear material winding roller to wind the ear material, and therefore the ear material winding roller can be replaced by the standby roller to wind the ear material. Compared with the prior art, the copper foil winding device has the advantages that the copper foil winding device is simple in structure and free of foil breakage risk, workers can take and use lug materials on the lug material winding roller to perform physical property testing, the lug materials are cut to perform testing instead of sampling testing from the middle position of the copper foil, waste of the copper foil can be reduced, and production cost of enterprises is reduced.

The invention discloses a 35kV-330kV power transmission line composite insulation cross arm and an installation device, the 35kV-330kV power transmission line composite insulation cross arm comprises an insulator, a fixing member and a connecting member, the fixing member and the connecting member are respectively arranged at two ends of the insulator, the circumferential outer wall of the insulator is sleeved with a plurality of umbrella skirts, the plurality of umbrella skirts are arranged at intervals along the length direction of the insulator, and a maintenance part is arranged between two adjacent umbrella skirts. According to the utility model, through the arrangement of the maintenance part, when the insulator is maintained, the insulator is maintained after the insulator is disassembled through the position of the maintenance part, and only the maintenance part is repaired after maintenance, so that maintenance from the umbrella skirt position is avoided, and the structure and the function of the umbrella skirt can be ensured after maintenance; and the condition that maintenance can be carried out only after the cross arm and the umbrella skirts are detached is also reduced.

The invention discloses a curved surface pressure sensor based on a magnetic field and a manufacturing and calibration method thereof, and aims to solve the problem that when an existing flexible pressure sensor based on the magnetic field is matched with a complex curved surface, wiring of a PCB is complex, or the consistency of readings of different Hall elements is low, so that the accuracy of a measurement result is reduced. The device comprises a flexible magnet layer, a hard shell layer and a flexible printed circuit board, the hard shell layer is a curved surface, and the inner wall of the hard shell layer is uniformly provided with mounting grooves for placing the stiffening plates; the flexible printed circuit board is provided with a plurality of reinforcing plates which are arranged at intervals, and the plurality of Hall elements are arranged on the plurality of reinforcing plates in a one-to-one correspondence manner; the flexible printed circuit board is connected with the hard printed circuit board through a connector; the problem of adaptation to a complex curved surface is solved, the consistency of the interlayer spacing of the Hall sensor and the flexible magnet is kept, the measurement result of the sensor is more accurate and stable, and the sensor has the capacity of covering the shape of a complex product in a large range.

The utility model provides a space cloth double-face staggered printing and cutting device which comprises a feeding mechanism, a corona mechanism is arranged on one side of the feeding mechanism, a printing mechanism is arranged at the outlet end of the corona mechanism, two printers which are oppositely arranged in a staggered mode are arranged in the printing mechanism, and a cutting mechanism is arranged at the outlet end of the printing mechanism. The feeding mechanism, the corona mechanism, the printing mechanism and the cutting mechanism are used in cooperation, feeding, corona, double-face staggered printing and cutting of the space cloth are combined, automatic processing of the space cloth is achieved, the automation degree is high, the production efficiency is improved, the yield is increased, the product precision and the product percent of pass are improved, and the production cost is reduced. The method is suitable for batch production and belongs to the technical field of space cloth printing and cutting.

The invention discloses a pre-lithiated cylindrical roll core and a pre-lithiation method thereof. The cylindrical roll core comprises a composite lithium supplement material, a full-tab or multi-tab cylindrical roll core, a termination adhesive tape and a diaphragm, the composite lithium supplementing material is formed by compounding a negative electrode copper foil, a composite diaphragm and two or more metal lithium foil materials, metal lithium foil materials are coated on one side of the negative electrode copper foil at intervals, and the other side of the negative electrode copper foil is coated with the composite diaphragm; positive and negative tabs are respectively arranged at two ends of the full-tab or multi-tab cylindrical roll core, and a diaphragm is covered in the middle of the full-tab or multi-tab cylindrical roll core; the bonding layer surface of the termination adhesive tape and the surface, provided with the negative electrode copper foil, of the composite lithium supplementing material are covered with an ending adhesive tape, and one end of the negative electrode copper foil is arranged in a free mode, coincides with the negative electrode lug end of the full-lug or multi-lug cylindrical roll core and is pasted to the surface of the full-lug or multi-lug cylindrical roll core by a circle through the ending adhesive tape. According to the invention, lithium supplement is carried out on the battery at the level of the cylindrical battery core, the pre-lithium amount is controllable, and relatively high first coulombic efficiency and cycle performance are realized.

The utility model relates to the field of FFC flat cables, in particular to an energy storage CCS flat cable, which comprises a wire harness body, the wire harness body comprises a plurality of conductors arranged side by side, a first insulating layer and a second insulating layer, and the conductors are arranged between the first insulating layer and the second insulating layer; at one end of the wire harness body, the length of the first insulating layer is shorter than that of the second insulating layer, the end parts of the conductors are exposed, the conductors comprise a plurality of first conductors and a plurality of second conductors, the first conductors and the second conductors are arranged at intervals, and the exposed length of the first conductors is shorter than that of the second conductors. Through the length setting of the first insulating layer and the second insulating layer, the conductor is ensured to be exposed so as to facilitate subsequent butt joint. Through setting of the exposed lengths of the first conductor and the second conductor, flying volt is prevented from being formed in the plugging process, interference is avoided, and signal transmission is not influenced.

The invention provides a fast assembly type clean workshop, and relates to the technical field of clean workshops, the fast assembly type clean workshop comprises a plurality of first fast disassembly base plates, a plurality of second fast disassembly base plates and a plurality of top plates, the number of the first fast disassembly base plates is the same as that of the second fast disassembly base plates, and the first fast disassembly base plates and the second fast disassembly base plates are arranged at intervals; a plurality of first quick-release base plates are arranged on the upper portion of the enclosure, a second quick-release base plate is arranged between every two adjacent first quick-release base plates, the first quick-release base plates and the second quick-release base plates are connected through a plurality of first quick-release square pipes to form the enclosure, the top plates are arranged in the front-back direction, the top plates are connected through a plurality of second quick-release square pipes to form a top cover, and the top cover is installed at the upper end of the enclosure through a detachable mechanism. A cleaning mechanism is installed on the first quick-release base plates, a function plate is installed on the second quick-release base plates, the cleaning mechanism and the function plate are correspondingly arranged, and the number of the first quick-release base plates, the number of the second quick-release base plates, the number of the first quick-release square pipes, the number of the top plates and the number of the second quick-release square pipes can be adjusted in real time according to the target specification of a clean workshop.

The utility model belongs to the technical field of printed circuit board production, and particularly relates to a cavity filter and a mounting structure, and the cavity filter comprises a resonance main body which is provided with a first surface and a second surface which are oppositely arranged; the two side plates are connected to the first surface and the second surface of the resonance main body respectively, a plurality of weld legs are arranged on the surfaces, back to the resonance main body, of the side plates, and the weld legs are arranged at intervals in the length direction of the resonance main body. According to the cavity filter, the plurality of welding pins are arranged on the surfaces, back to the resonance main body, of the side plates, so that contact points and fixing points of the side plates and the PCB are increased, and the connection reliability is improved; the plurality of welding pins are arranged at intervals along the length direction of the resonance main body, so that the welding stress is uniformly distributed, the damage of local concentrated stress to the structure is reduced, and the durability of the whole structure is enhanced.

The present application relates to overhead cable technical field, propose a kind of 10kV cold-resistant tensile type crosslinked polyethylene insulation overhead cable, including conductor, conductor outside is sequentially covered with inner shield layer, crosslinked polyethylene insulation layer and outer shield layer, conductor is composed of several single wires twisted in the outer periphery of metal reinforcing core, it further include sheath layer, force positioning ring and snow removal assembly, outer shield layer outside is provided with sheath layer, sheath layer outside is arranged with several force positioning rings, snow removal assembly is arranged between every two adjacent force positioning rings, when there is snow on sheath layer, automatically trigger snow removal assembly in windy environment, remove the snow on sheath layer, by the above technical scheme, solve the problem that when overhead cable is in cold harsh environment operation, due to the influence of snow and ice, it bears a lot of tension and increases the risk of frost heaving cracking in prior art.

The present invention discloses a self-powered monitoring system for bridge cable tension based on triboelectric nano-generation and electromagnetic generation. A hybrid energy harvester converts wind energy into electrical energy, which is then converted to DC voltage through a power management circuit to power the remaining units. The hybrid energy harvester comprises a ball bearing with a FEP surface, a coaxially mounted rotatable upper and lower cylinders, the cylinders and blades of which are fixedly connected by ribs, and the upper and lower blades twist in opposite directions. Multiple inclined rails are provided on the outer wall of the upper cylinder, the inner wall of the lower cylinder, and the upper and lower blades to accommodate the ball bearings. Grid-shaped copper electrodes are attached to the inner wall of the upper cylinder at intervals, with polyester fiber fibers arranged in between. Multiple coils are embedded in the circumference of the upper cylinder, and multiple permanent magnets are embedded in the corresponding circumference of the lower cylinder. Multiple nylon and PTFE membranes are evenly and staggeredly attached to the outer wall of the lower cylinder. The present invention achieves self-powered monitoring, ensuring continuous and real-time monitoring of bridge cable tension.

The application provides a high-voltage cable for detecting space charge, a detection method and a manufacturing method. The outer sheath is provided with two second circumferential seams and three second axial seams; the two side edges of the fixed sheath part are hinged to the connecting side edges of two detachable outer sheath blocks, and a switching mechanism is arranged between the opening and closing side edges of the two detachable outer sheath blocks; and the buffer sleeve is provided with two spaced first circumferential seams and a first axial seam. The outer sheath is divided into a fixed sheath part and two detachable outer sheath blocks, so as to form an openable and closable detection window; the fixed sheath part is integrally connected with the outer sheath, and the two detachable outer sheath blocks are hinged to the fixed sheath part, so that the detection window can be quickly opened and closed, and the switching mechanism is locked to cooperate with the first circumferential seam and the first axial seam of the buffer sleeve, so that the buffer sleeve can be opened synchronously with the detection window.

This invention discloses an electrode station network system for detecting fire sources in goaf areas, along with its deployment and testing methods. The system includes roadway electrode stations, goaf area electrode stations, and main roadway reference electrode stations, which are sequentially and alternately deployed below the coal and rock surface in the goaf area of ​​a coal mine. Each electrode station comprises a detection conductor, flexible graphite cloth, a conductor network, a graphite mortar base, and a grounding metal electrode. The resistivity ρ of the coal and rock surface within the goaf area is measured using a rock resistivity meter, and the theoretical grounding resistance R of a single electrode station is calculated. g And thus the theoretical grounding resistance R of the electrode station g Based on this, the dimensions of the pre-deployed electrode stations are determined, and the spacing between the electrode stations in the roadway, the goaf, and the reference electrode station in the main roadway are also determined. This invention features high temperature resistance, corrosion resistance, good stability, and high detection accuracy, making it extremely suitable for detecting concealed fire sources in coal mine goafs in extreme underground environments.

The invention discloses a halogen-free flame-retardant fire-resistant cable which comprises an outer protective layer, a flame-retardant layer, an armor layer, a filling layer and a cable core which are sequentially arranged from outside to inside, and the outer protective layer is made of a crosslinked polyethylene material; the flame-retardant layer comprises a first ring, a second ring and a third ring which are sequentially arranged at intervals, the first ring and the third ring are fixedly arranged on the armor layer in a sleeving mode, the second ring is slidably arranged on the armor layer in a sleeving mode, and the third ring is arranged on the armor layer in a sleeving mode. A plurality of mounting blocks are arranged on the opposite sides of the first ring and the second ring; through the arrangement of the flame-retardant layer, when the outside of the cable is on fire and burns, the spring can drive the second ring to approach the first ring, so that the joint of the first folding rod and the second folding rod moves along the outside of the cable core, the outer sheath of the cable can be cut off by using the spine part and the telescopic cutting ring in the process, and then fire spreading on the outer side of the cable can be physically blocked; the halogen-free flame-retardant fire-resistant cable is safe and reliable.

The invention relates to a device and a method for metering bulk material (12), comprising a housing (2) which extends along an axis (3) and which comprises a base plate (4), a cover plate (5) which is arranged at an axial distance from the base plate, and a peripheral wall (6) which connects the base plate (4) and the cover plate (5) and which encloses a working space (7). A honeycomb wheel (28) which rotates about the axis (3) is arranged in the working space (7) and has a plurality of cells (33) which are arranged concentrically about the axis (3) on a number n of annular tracks (32.1, 32.2, 32.3, 32.4), the cells (33) of a first annular track (32.4) being arranged circumferentially offset v from the cells (33) of the other annular track (32.2). The upper side of the units (33) facing the cover plate (5) and the lower side of the units (33) facing the base plate (4) are designed to be open and form, with the cover plate (5) and the base plate (4), a chamber that rotates about the axis (3). The housing (2) has a feed opening (8), via which the material (12) can be fed to the cells (33) of the honeycomb wheel (28), and a discharge opening (9), via which the cells (33) of the honeycomb wheel (28) can be emptied. The filled cells (33) enter the area of the discharge opening (9) during the rotation of the honeycomb wheel (28), wherein each cell (33), together with its cell wall and the discharge opening (9), forms a partial cross-section Ateil which is generated during the entry and which is dependent on the angle of rotation. In order to ensure that the material flow is as continuous as possible during the metering process, it is proposed according to the invention that the circumferential offset v is formed between a first unit (33) of the first circular track (32.4), which first unit is preceding in the direction of rotation (38), and a further unit (33) of a further circular track (32.2), which further unit is immediately following in the direction of rotation, the other unit (33) is arranged in the area of the discharge opening (9) such that, as the other unit (33) begins to enter the area of the discharge opening (9), the partial cross-section Ateil of the first unit (33) corresponds to x1 / n of the entire cross-section Avoll of the first unit (33), where x is in the range of between 0.6 and 1.4.

The utility model discloses a self-supporting filling type telephone cable, which comprises filling type wire cores and bearing stranded wires which are arranged at intervals and are jointly coated in an irradiation crosslinking linear low density polyethylene outer sheath layer, the filling type wire core comprises five multi-pair twisted wire groups which are uniformly distributed around a regular pentagonal polyurethane elastomer filling core in the circumferential direction and are twisted together to form a cable core, and petroleum jelly is filled in gaps of the cable core; a fluororubber tape moisture-proof longitudinal wrapping layer, an EVA water-blocking inner bonding layer, an aluminum-plastic composite tape longitudinal wrapping waterproof shielding layer, an irradiation crosslinking linear low-density polyethylene inner cushion layer and an EVA water-blocking outer bonding layer are sequentially wrapped outside the cable core, and sheet-shaped grounding copper foil is arranged between the aluminum-plastic composite tape longitudinal wrapping waterproof shielding layer and the irradiation crosslinking linear low-density polyethylene inner cushion layer. The telephone cable is suitable for overhead laying, better in moisture-proof and waterproof performance, excellent in weather resistance and durable in application.

The invention provides a three-dimensional interdigital electrode and a preparation method thereof, and the preparation method comprises the steps: firstly, metal layers and sacrificial layers are sequentially and alternately deposited on the surface of a substrate, and the number of the metal layers is at least 2; a three-dimensional alloy micro-column array penetrating in the thickness direction is formed in the multi-layer structure in a heating mode; performing material reduction processing on the multi-layer structure from one side, deviating from the substrate, of the multi-layer structure in the thickness direction, so that the multi-layer structure is provided with a two-dimensional interdigital structure; and finally, oxidizing and dissolving sacrificial layer components in the sacrificial layers and the alloy micro-columns, so that a three-dimensional porous micro-column array can be obtained, and a three-dimensional porous micro-column array electrode is formed; at least two metal layers which are connected by the three-dimensional porous microcolumn array and are arranged at intervals in the thickness direction can be obtained, each metal layer is provided with a two-dimensional interdigital structure, and the three-dimensional porous microcolumn array at least penetrates through the two-dimensional interdigital structures in the metal layers. The production process is obviously simplified, the production cost is reduced, and the detection performance is improved.

The invention provides a grating dam structure and a construction method thereof.The grating dam structure comprises a plurality of herringbone frameworks, the lower portions of the herringbone frameworks are fixedly arranged in channel bed rock, the herringbone frameworks are arranged in the transverse direction of a channel at intervals, and the herringbone frameworks are formed by splicing rail profile steel and comprise upstream stand columns and downstream supporting columns; the tops of the upstream stand columns are connected with transverse connecting main beams, the adjacent downstream supporting columns are connected through transverse connecting secondary beams, longitudinal force transmission beams are connected between the upstream stand columns and the downstream supporting columns, transverse supports are connected between the upstream stand columns, and transverse connecting secondary beams are connected between the transverse supports. The transverse support is arranged on the upstream face which the upstream stand columns face jointly, and a flexible blocking protective net is further arranged on the upstream face of the transverse support. Large-area foundation excavation and concrete construction are omitted, construction is convenient, the construction period is shortened, and meanwhile the good blocking function is achieved.

The utility model belongs to the field of space cloth pressing, and particularly relates to a space cloth processing and pressing device which comprises a working table, and a side plate is fixedly connected to the top of the working table. The side wall of the side plate is fixedly connected with a first motor; the output end of the first motor is fixedly connected with a containing groove. A second air cylinder is fixedly connected to the bottom of the placing groove; the output end of the second air cylinder is fixedly connected with a push plate. The top of the workbench is fixedly connected with a supporting column. A lantern ring is arranged outside the supporting column in a sleeving manner; the end part of the lantern ring is fixedly connected with a supporting plate; the top of the supporting plate is fixedly connected with a first air cylinder. The output end of the first air cylinder is fixedly connected with a pressing plate. The problem that the space cloth is adsorbed on the push plate and is inconvenient to take out after being compressed can be reduced by additionally arranging the second air cylinder, meanwhile, the space cloth can be downwards taken out after being pressed by additionally arranging the first motor so as to prepare for next processing work, and the working speed is effectively increased.

The invention relates to a plasma rotating electrode atomization residual material head recycling device and a powder making device. The device comprises a material receiving mechanism and a transferring mechanism which are arranged at intervals in the vertical direction, the material receiving mechanism comprises a shell, the front end of the shell is provided with a butt joint opening in butt joint with an atomizing chamber, the rear end of the shell is provided with an openable hatch cover, a linear rail with the front portion higher than the rear portion is arranged in the shell, and a material receiving trolley is slidably arranged on the linear rail; an opening is formed in the upper end of the material receiving trolley, a sealing plate is arranged at the front end of the material receiving trolley, an openable baffle is arranged at the rear end of the material receiving trolley, the sealing plate blocks the butt joint opening, a pushing air cylinder is arranged on the cabin cover, the front end of the pushing air cylinder abuts against the material receiving trolley, and the transferring mechanism comprises a transferring track and a transferring trolley arranged on the transferring track and in butt joint with the rear end of the shell. After material receiving is finished, the air cylinder rod moves backwards, the material receiving trolley can reset under the action of gravity, extra driving force and a transmission structure are not needed in the resetting process, action is simple and reliable, the fault rate is low, the transfer trolley is in butt joint with the rear end of the shell, manual sorting is not needed, and efficiency is improved.