38results about How to "Achieve stress resistance" patented technology

The invention provides an integral window drilling tool. The integral window drilling tool comprises a window sidetrack drilling unit, a tile clamping anchoring unit and a friction direction changing unit connected in order from top to bottom. The integral window drilling tool adopts a mechanical seat sealing principle by rotating and pushing, and is simple in structure, simple in operation, reliable in performance, high in efficiency, and capable of completing the constructions of drilling tool downward entering, direction settling, seat sealing, window opening, window fixing and the like in one time drilling; axial direction compression resistance and circumferential torsion resistance are realized through a set of clamping tile, and the direction changing groove design of the mechanical anchoring mechanism can effectively prevent a mistake of seat sealing caused by lifting a drill stem excessively during the process of drilling down and up and increase the stability of tile clamping anchoring.

The invention discloses a method for solid stowing of an underground roadway and a filling system. According to the method, mainly, on the basis of filling the lower part of a roadway with peristaticautomatic flowing of water-washed gangue, the upper part of a compacted roadway is filled with gangue blown by impact wind waves, and importantly, the upper triangular area of a filling roadway is filled with cementing materials; and thus the filling compactness and compression resistance of the whole roadway are realized, the working face filling efficiency is improved, the compacting filling strength of coal gangue is strengthened, and the method for solid stowing of the underground roadway and the filling system are especially suitable for cementing filling workplaces.

The invention discloses a power cable comprising a plurality of conductive cores. Insulating layers coat the outer sides of the conductive cores. The multiple conductive cores coated with the insulating layers are isolated by an insulating isolation rack, wherein the feet number of the isolation rack is identical with the number of the conductive cores. A first protection sleeve is connected outside the isolation rack. The space among the first protection sleeve, the insulating layers. And the isolation rack is filled with fillers. A second protection sleeve is arranged at the outer side of the first protection sleeve; and solid supports having hub structures are arranged between the first protection sleeve and the second protection sleeve uniformly in segmented mode. The power cable has the following beneficial effects: with the insulating isolation rack, insulating between all conductive cores can be realized well; on the basis of the external hub structures, good vibration-resistant and compression-resistant performances are realized; and insulation between the cable and the external world is realized well by using the two layers of protection sleeves.

The invention discloses a novel low-smoke, halogen-free and non-toxic environment-friendly electric wire optical cable. The optical cable comprises a protective sleeve, conductor cores, vibration damping devices and a clamp, wherein the conductor cores are uniformly mounted on an inner wall of the protective sleeve; a low-smoke halogen-free flame-retardant filler is uniformly filled between an interior of the protective sleeve and outer surfaces of the conductor cores; the vibration damping devices are uniformly mounted on an outer surface of the protective sleeve; a shell is mounted on the other ends of the vibration damping devices; the shell is disposed in an annular shape; the clamp is mounted on an outer surface of the shell; a circular ring fixing block is mounted at top ends of twosides of the clamp; an internal thread is horizontally disposed at a bottom end of an intermediate position inside the circular ring fixing block; and a fastening bolt is horizontally mounted at an interior of the internal thread. The novel low-smoke, halogen-free and non-toxic environment-friendly electric wire optical cable enables the electric wire cable to emit less smoke when the cable is burned, the acid gas is less released, and the flame-retardant effect is good, and the electric wire optical cable is unlikely to directly harm the human body.

The invention discloses an outdoor shock-absorbing moisture-proof pad, which relates to the technical field of outdoor equipment; the lower surface of the waterproof pad body is respectively provided with several horizontal anti-slip saw teeth and vertical anti-slip saw teeth, and the horizontal anti-slip saw teeth and the longitudinal anti-slip saw teeth Arranged at intervals, the upper surface of the waterproof cushion is provided with a fireproof layer, the upper surface of the fireproof layer is provided with a pressure-resistant layer, the upper surface of the pressure-resistant layer is provided with a polystyrene filling layer, and the polystyrene The upper surface of the filling layer is bonded with a silicone pad, the upper surface of the silicone pad is provided with a tin foil moisture-proof pad, and several shock-absorbing springs and shock-absorbing airbags are arranged inside the polystyrene filling layer. The shock spring and the shock-absorbing air bag are arranged at intervals; the invention is convenient to realize anti-slip, moisture-proof, compressive and deformation-resistant, can prolong the service life, has high efficiency, and is easy to operate.

The invention discloses an anti-slip and pressure-reducing type rubber pad, and relates to the technical field of rubber products. An upper rubber pad body is arranged on the upper surface of a compressive pad body; the lower rubber pad body is arranged on the lower surface of the compressive pad body, the support pad is arranged on the upper surface of the upper rubber pad body, the anti-slip padis arranged at the bottom of the lower rubber pad body, multiple anti-slip suckers are installed at the bottom of the anti-slip pad, multiple transverse pressure reducing slots are formed in the upper rubber pad body and the lower rubber pad body, and the two symmetrical transverse pressure-reducing slots in the upper rubber pad body and the lower rubber pad body are connected with and communicated with the longitudinal pressure reducing slots. According to the anti-slip and pressure-reducing type rubber pad, compression resistance, slip resistance and pressure reduction are achieved conveniently, comfort can be improved, convenience is brought to use, and operation is easy.

An online continuous winding and weaving method is characterized by comprising the following steps that woven cloth (8) is made by an inner-layer plain knitting machine (1), passes through a stereoscopic guide shaft (2) and a unidirectional guide shaft (3) in sequence, and then enters a circular guider (4) for guidance; the woven cloth (8) passes through a reverse rolling guide shaft A (9), and iswrapped on the excircle surface of a die core (10); yarns A (6) are wound on the outside of the woven cloth (8) on the excircle surface of the die core (10), and the yarns A (6) penetrate through a threading hole in a yarn disk A (7) in sequence in the form of 5 strands, 8 strands, 12 strands, 15 strands, 18 strands, 22 strands, 28 strands, single strand and double strands; and through the yarnsA (6) of the 5 strands, 8 strands, 12 strands, 15 strands, 18 strands, 22 strands, 28 strands, single strand and double strands penetrating through the threading hole, the yarn disk A (7) is rotated under the action of a first driving motor (11) and a first transmission belt (23).

A key exchange acceleration method for establishing a trusted execution environment security level comprises a key management module, a public key storage pool and a key monitoring module, and the key management module is used for generating a key required by communication and managing and calculating a session key. The public key storage pool module is established in a rich environment REE, and the key monitoring module is used for controlling the key generation speed and making mode selection. By calculating the relationship between the key use speed and the key storage capacity and adaptively selecting the key generation mode, the use of the key is not influenced by the communication performance, the generation operation can be carried out at the optimal speed, the communication speed is greatly improved, and the key generation becomes the bottleneck problem influencing the communication time.

The surface derusting and polishing device for metal bar machining structurally comprises a device body, the device body is provided with feeding and discharging grooves, an electric push rod, an arc-shaped limiting plate, a driving motor, a discharging groove and a connecting plate, and the feeding and discharging grooves are symmetrically formed in the left side and the right side of the device body; the electric push rods are fixedly connected to the left side and the right side of the outer surface of the device body, the arc-shaped limiting plate is fixedly connected to the inner wall of the device body, the driving motor is fixedly connected to the inner wall of the device body and located on the right side of the arc-shaped limiting plate, and the discharging groove penetrates through the bottom of the interior of the device body. According to the polishing device, automatic shaping and outputting of the metal rods before polishing are achieved, the situation that operators convey the metal rods by themselves is avoided, the outer surfaces of the metal rods can be polished at a time, the polishing speed of the metal rods is increased, and the uniformity of the polishing device during polishing of the metal rods is improved.

The invention discloses a compression-resistant chip capacitor, and relates to the technical field of the chip capacitor. The capacitor body is internally provided with a compression-resistant framework. The external side wall of the compression-resistant framework is provided with a shock pad. The compression-resistant framework is provided with multiple air venting holes, and the compression-resistant framework is internally provided with multiple reinforcing frames which are the hollow reinforcing frames. The internal side walls of the reinforcing frames are provided with concave arc grooves. The strength and shock absorption can be enhanced, compression resistance can be realized and the service life can be prolonged; and air ventilation can be realized, the heat radiation performanceis high and operation is easy and convenient.

The invention discloses a high-strength elevator ceiling, which relates to the technical field of elevator appliances; both ends of the frame body are equipped with mounting plates, the upper end of the mounting plate is equipped with connection undercuts, and the inside of the frame body is provided with anti-corrosion plates. The bottom of the anti-corrosion plate is provided with an activated carbon plate, the underside of the activated carbon plate is provided with a moisture-proof plate, and the underside of the moisture-proof plate is provided with a pressure-resistant plate. Ventilation holes are provided on the inner sides of the boards, and ventilation pipes are pierced through the ventilation holes; the invention is convenient for fast installation and fixing, and can realize moisture-proof, waterproof, compression-resistant and breathable, and it is easy to use and has various functions.

The invention discloses an ultrahigh-pressure metal fiber sintered felt and a preparation method thereof, and relates to the technical field of metal fiber sintered felts. A second steel wire and a second clamping pin are arranged on a second frame, a second ball is arranged on the second steel wire, a first steel wire and a first clamping pin are arranged on a first frame, the first steel wire is provided with a first round ball, a third frame body is arranged between the first frame body and the second frame body, the third frame body is provided with a steel mesh, and the second bayonet lock is clamped into the first bayonet lock, so that the purposes of pressure resistance and ordered distribution are achieved. The sintered felt is reasonable and practical in structure, so the pressure resistance of the metal fiber sintered felt is increased, the pressed metal fiber is sintered more tightly, the working efficiency is improved, and the production cost is reduced.

The invention discloses a heating-type computer office bedplate and relates to the technical field of computer tools. A heat collecting plate is installed at the upper inner end of a plate body, multiple heating rods are installed at the lower end of the heat collecting plate, a temperature detection sensor is installed at the bottom of the heat collecting plate, heat preservation covers are installed on the outer sides of the heating rods, a thermal insulating plate is installed at the lower end of each heat preservation cover, a temperature controller is arranged on the lower side of each thermal insulating plate and installed on the inner rear side of the plate body, and the temperature detection sensor is connected to input ends of the temperature controllers through wires; output endsof the temperature controllers are connected to the heating rods, mounting holes are formed in the lower inner end of the plate body and internally provided with screw sleeves, screw rods are installed in the screw sleeves, and a damping pad is installed at the lower end of each screw rod; an adjusting groove is formed in the upper rear side of the plate body and internally provided with an adjustor, and a baffle is installed at the upper end of the adjustor. The bedplate provides convenience for heating, adjustment and pressure resistance, can achieve fast control and fast installation at the same time and is convenient to use and easy to operate.

The invention discloses a steel vibration damper which comprises a bottom cylinder, an installation area is arranged in the bottom cylinder, an inner piston cylinder assembly is arranged in the installation area, a vibration buffering part is arranged on the upper portion of the inner piston cylinder assembly, a top sleeve is arranged on the vibration buffering part in a sleeving mode, and an outer piston cylinder assembly is arranged on the upper portion of the top sleeve. The inner piston cylinder assembly and the vibration buffering part are located in the mounting area, the vibration buffering part comprises a compression cylinder, a connecting rod is movably inserted into the bottom of the compression cylinder, one end of the connecting rod is movably connected into the compression cylinder, and the other end of the connecting rod penetrates through the bottom cylinder and extends out of the bottom cylinder; the compression cylinder is sleeved with a limiting installation piece, and a compressible abutting piece is arranged on the upper portion of the limiting installation piece. According to the steel vibration damper, through the arrangement of the bottom cylinder, the inner piston cylinder assembly, the vibration buffering part, the top sleeve and the outer piston cylinder assembly, the buffering, damping and compression resisting effects are achieved, and the shock resistance of the dynamic damper is guaranteed.