11results about How to "Increased ring stiffness" patented technology

The utility model discloses a high-modulus square buried structural wall pipe which comprises a pipe body, the pipe body is of a square structure, a pipe wall is arranged on the edge of the pipe body, corrugations are arranged on the pipe wall, a plurality of sets of corrugations are distributed on the surface of the pipe wall, corners of the pipe wall are vertically downward, arc angles are arranged on the edges of the corrugations, a pipe opening is formed in the pipe body, and the pipe opening is communicated with the pipe body. The pipe opening is a square opening, and a second arc angle is arranged at the corner of the pipe opening. The utility model has the advantages that the stability, the flow passing capacity and the construction convenience of the pipeline are improved.

The utility model relates to a kind of high trapezoidal multi-hole high cavity reinforced structure wall pipe, including pipeline main body, reinforcing rib is formed with spiral winding in pipeline main body outer end face, it is hollow, and cross-sectional shape is set to trapezoidal;Reinforcing rib outer end face spiral winding is formed with reinforcing pipe, reinforcing pipe is hollow tubular structure, its cross-sectional shape is circular, the outer diameter of reinforcing pipe is not greater than the maximum width of reinforcing rib;Reinforcing frame is arranged in the cavity of reinforcing rib, and it is tightly arranged with the inner wall of reinforcing rib, corrugated pipe is arranged in reinforcing pipe, and it is tightly arranged with the inner wall of reinforcing pipe.Compared with the defect that existing circular reinforcing rib is prone to depression, cracking under asymmetric load, the structure wall pipe is designed through trapezoidal cross-section reinforcing rib, utilizes the advantage that trapezoidal structure stress dispersion is uniform, lateral pressure resistance is strong, efficiently transfers external force such as soil pressure, ground load to pipeline main body, avoids local stress concentration.

The utility model discloses a corrugated high-temperature-resistant cable protection tube, which belongs to the technical field of cable protection tubes and comprises an inner tube body, and a honeycomb tube body is wrapped on the outer wall of the inner tube body. The outer pipe body wraps the side, away from the inner pipe body, of the honeycomb pipe body, a corrugated pipe body is spirally wound on the outer wall of the outer pipe body, air holes are formed in the corrugated pipe body, flange rings are arranged at the two ends of the outer pipe body, and mortises are formed in the sides, away from each other, of the flange rings. Through the arrangement of the corrugated pipe body matched with the arrangement of the honeycomb pipe body, the overall pressure resistance of the cable protection pipe can be greatly improved, and meanwhile through the auxiliary improvement of the buffering effect, the impact resistance effect of the pipe body is further improved, so that the ring stiffness of the cable protection pipe is further improved, and the service life of the cable protection pipe is prolonged. And the situation that the pipe body is pressed to deform or crack due to insufficient ring stiffness is effectively reduced.

This invention discloses a solid-wall spiral wound tube extrusion production equipment, belonging to the technical field of spiral wound tube forming equipment. It includes an injection molding machine body with a forming assembly mounted on it; a drive assembly includes a first gear rotatably mounted on the forming assembly and a second gear meshing with the first gear, the second gear being driven by a second motor; a feeding assembly includes an electric cylinder and a guide tube slidably connected to the first gear, a connecting plate mounted on the output end of the electric cylinder being rotatably connected to the guide tube, an electric gripper mounted on the guide tube, a driven roller rotatably mounted on one arm of the electric gripper, and a clamping rod fixedly mounted on the other arm. The driven roller of this invention, through its dual function of clamping and pressing, achieves seamless connection of molten material guidance, stable winding, and interface adhesion during the spiral wound tube production process; the top roller and the roller body work together to effectively prevent reverse slippage of the extruded material during winding, ensuring the continuity and stability of the winding process.

This invention relates to the field of power cable technology, specifically to a low-temperature resistant, crack-resistant protective conduit for communication and power cables. It includes a cable body with an inner insulation structure. The insulation structure includes a first positioning ring and a second positioning ring located inside the cable body. The outer wall of the second positioning ring has a heating wire groove, and the inner side of the heating wire groove has a heating wire body. An installation head is fixedly connected to the outer wall of the second positioning ring, and a connecting post is fixedly connected between the installation heads. The side wall of the connecting post has a wire-passing groove. The venting structure includes a venting ring fixedly fitted around the outer ring of the cable body, and multiple venting pipes are fixedly connected to the outer wall of the venting ring. This invention provides a low-temperature resistant, crack-resistant protective conduit for communication and power cables, which has the advantages of heating and insulation in low-temperature environments, automatic venting, and high overall cable stability and compressive strength.

This utility model discloses a multi-layer inner-lined flexible hose for in-situ repair of water supply and drainage pipelines. The utility model includes a first hose body, a second hose body, screws, and a compensating sealing assembly. A first connector is fixedly installed at the end of the first hose body, and a groove is formed at the top of the first connector. The second hose body is fixedly installed on top of the first hose body, and a second connector is fixedly installed at the end of the second hose body. The screw passes through a mounting hole and is threaded into a threaded groove. The compensating sealing assembly includes a first fixing ring inserted into the groove, a spring fixedly installed at the top of the first fixing ring, a second fixing ring fixedly installed at the top of the spring, a sealing ring bonded to the top of the second fixing ring, and sealant filled within the sealing ring. This utility model, by incorporating the first connector, second connector, screws, and compensating sealing assembly, significantly reduces obstruction from the connection and fixing structure, and achieves a good sealing effect.

The utility model discloses a heat dissipation cable, and relates to the technical field of wires and cables. A heat dissipation cable comprises a heat dissipation section, the heat dissipation section comprises a cable core, a braid layer, an outer sheath and a heat dissipation frame made of a high-heat-conduction metal material, the heat dissipation frame comprises a guide pipe frame and heat dissipation wing plates which are located on a center shaft of the cable, the guide pipe frame is of a hollow tubular structure, and the heat dissipation wing plates are arranged on the peripheral side of the guide pipe frame in a surrounding mode. The cable cores are uniformly arranged between the adjacent heat dissipation wing plates, heat-conducting rubber materials are filled between the cable cores and the heat dissipation wing plates, and the braided layer and the outer sheath sequentially wrap the peripheral side of the heat dissipation frame. By arranging the heat dissipation frame made of the high-heat-conduction metal material in the heat dissipation section, the ring stiffness of the heat dissipation section can be improved, the compression resistance and impact resistance of the heat dissipation cable can be improved, the heat conduction efficiency and the heat dissipation efficiency in the heat dissipation section can be effectively improved, and the heat accumulation effect in the heat dissipation cable can be prevented.

The application relates to a fiber-reinforced wave-absorbing pipe and belongs to the technical field of pipe materials. In order to solve the problem of poor electromagnetic shielding of existing pipes, the fiber-reinforced wave-absorbing pipe comprises an outer layer, a middle wave-absorbing functional layer and an inner layer, the middle wave-absorbing functional layer is located between the outer layer and the inner layer, and the middle wave-absorbing functional layer comprises the following components in mass percentage: high-density polyethylene: 70-85%; boron-doped SiC nanofiber: 10-28%; silane coupling agent: 0.1-1.5%; antioxidant: 0.15-0.3%; and dispersant: 0.2-0.5%. The fiber-reinforced wave-absorbing pipe can effectively absorb and attenuate electromagnetic waves in the frequency band of 8-18 GHz, the minimum reflection loss (RL min ) of the pipe material in the frequency band of 8-18 GHz (Ku band) reaches -45 dB to -60 dB, and the overall mechanical properties of the pipe material are better ensured.

The utility model relates to MPP cable protection pipe technical field, and disclose a kind of MPP cable protection pipe of convenient lap, including MPP cable protection pipe body, the surface of MPP cable protection pipe body is connected with first connecting ring, MPP cable protection pipe body inside is slidably connected with several connecting plates, the surface of MPP cable protection pipe body is slidably connected with second connecting ring, second connecting ring side is rotatably connected with several fixed bolts, several connecting plates side is provided with driving mechanism, several fixed bolts side is provided with synchronous rotating mechanism of driving several fixed bolts rotation, second connecting ring surface is provided with the stabilizing mechanism for the secondary firm of MPP cable protection pipe body, the equipment need not welding, it is convenient to connect MPP cable protection pipe body, reliable simultaneously firm, improve the tensile strength and ring stiffness of connecting place, avoid the risk of cracking or pulling off, so that the quality and safety of entire project are guaranteed.

The invention relates to the technical field of double-wall corrugated pipes, in particular to a polyolefin alloy material double-wall corrugated pipe which comprises a double-wall corrugated pipe body, a first connector and a second connector are arranged at the two ends of the double-wall corrugated pipe body respectively, the first connector comprises an inner cylinder arranged at a port of the double-wall corrugated pipe body in a communicating mode, and an outer cylinder is arranged on the outer side of the inner cylinder in a sleeving mode. An inner ring is arranged in an annular space defined by the outer cylinder and the inner cylinder in a sliding mode, a straight cylinder arranged on the inner cylinder in a sliding and sleeving mode is arranged on the inner ring, a conical opening is formed in an end opening of the straight cylinder, the second connector is a cylinder body installed on the end face of the other side of the double-wall corrugated pipe body, and threads are arranged on the outer wall of the cylinder body; when the second connector is connected with the first connector, the second connector is inserted into the outer cylinder and meshed with the inner wall of the outer cylinder in a threaded mode, when the second connector is connected with the first connector, due to the fact that the second connector pushes the conical opening, the inner ring moves inwards to stretch the spring, and the elastic force of the spring is utilized to enable the conical opening to be in contact with the inner wall of the second connector all the time.

The application belongs to the field of molecular composites, and discloses a multi-layer co-extrusion MPP cable protection pipe and a preparation method thereof. From inside to outside, the pipe comprises a conductive wear-resistant inner layer, a reinforcing and toughening intermediate layer and a weather-resistant and flame-retardant outer layer, and the three layers are combined and formed through a co-extrusion process. In view of the technical defects and industry common pain points in the prior art, such as the single function of the single-layer structure, the poor interlayer bonding force of the multi-layer structure, the poor conductive modification effect, the many drawbacks of the glass fiber reinforcement, the mechanical property decline caused by the flame-retardant modification and the like, the application provides a multi-layer co-extrusion MPP cable protection pipe and a preparation method thereof.