295 results about "Wrap around" patented technology

The present invention provides a coin arranging / conveying apparatus that is capable of reliably conveying coins one at a time into a coin passage unit even if there is such a great difference in diameter or thickness of coins. A first gate portion is defined by a separation roller, an arranging / conveying surface of an arranging / conveying belt, and a movable roller. The movable roller faces the underside of the arranging / conveying surface of the arranging / conveying belt. A second gate portion is defined by a coin passage upstream end roller, and the portion of a transfer belt wrapped around the coin passage upstream end roller. Coins are arranged in a single layer in single file by means of the first gate portion, as well as the second gate portion.

This invention belongs to the technical field of waterjet cutting machines, specifically relating to a portable waterjet cutting machine, including a pressurizing device, a sand control device, and a water gun, which are connected by pipelines. It also includes a water gun driving device, comprising a chassis, a water gun fixing assembly, and a drive motor. Support wheels are rotatably connected to the chassis; a support plate is fixedly connected to the chassis, and a drive sprocket is rotatably connected to the support plate; the chassis is connected to the support sprocket via the support assembly, and a chain connects the drive sprocket and the support sprocket; the chassis is equipped with a magnetic suction assembly. By providing the magnetic suction assembly, the chassis can be firmly attached to the pipe to be cut during installation without manual assistance; after the chain is wrapped around the pipe, the attachment is released, ensuring stable movement of the chassis along the pipe, achieving quick and convenient installation and preparation for operation.

The surface material is neatly wrapped around the edges of the base material. [Solution] The surface material processing apparatus 20 folds the surface material 16, which is placed on the surface of the base material 12, back at the edge of the base material 12 (the opening edge of the opening 14) and attaches it to the back surface of the base material 12. The surface material processing apparatus 20 includes a cutting blade 32 that forms a cut in the extended portion 17 of the surface material 16 that extends from the edge, and a cutting blade moving unit 40 that moves the cutting blade 32 to form a cut from a position close to the edge of the extended portion 17 toward the end of the extended portion 17 when forming the cut.

This utility model discloses a quadruped robot, including a lower leg, a shock-absorbing foot pad, and an integrally formed foot pad mounting base. The foot pad mounting base is installed on the bottom of the lower leg, and the shock-absorbing foot pad is locked onto the foot pad mounting base to form a wrap around the bottom of the foot pad mounting base. The foot pad mounting base has a slot, and the shock-absorbing foot pad has a protrusion that engages with the slot. This utility model utilizes the engagement between the protrusions on the shock-absorbing foot pad and the slot on the foot pad mounting base. When the quadruped robot runs at high speed on the ground, the lateral component of the friction force applied to the shock-absorbing foot pad by the ground is transmitted to each protrusion. The protrusions can abut against the inner wall of the slot to provide lateral support for the shock-absorbing foot pad, preventing excessive lateral deformation and damage, and preventing the shock-absorbing foot pad from detaching due to excessive lateral force, ensuring that the shock-absorbing foot pad is always stably wrapped around the bottom of the foot pad mounting base.

This utility model discloses a wire-pair shielded data transmission cable with high transmission performance, comprising: a cross-shaped frame, the four isolation walls of the cross-shaped frame having different wall thicknesses, a buffer groove provided at the top of the isolation wall, and a folded groove aligned with the bottom of the buffer groove on the outer wall of the isolation wall, a filling rope and a set of twisted core wires arranged in the cavity between two adjacent isolation walls, aluminum-plastic composite tape wrapped around the twisted core wires, and tinned copper wire braided tape woven on the cross-shaped frame, the tinned copper wire braided tape being in direct contact with the aluminum surface of the aluminum-plastic composite tape, the tinned copper wire braided tape abutting against the twisted core wires and compressing the buffer groove, the groove wall of the buffer groove bending along the folded groove and abutting against the tinned copper wire braided tape after being compressed by the tinned copper wire braided tape, a wrapping tape wrapped around the tinned copper wire braided tape, and a sheath extruded onto the wrapping tape. This utility model has a simple structure and excellent signal shielding performance both internally and externally.

This utility model provides a waterproof structure for a photoelectric sensor, including a protective housing and a photoelectric sensor body. The protective housing has an installation cavity, within which the photoelectric sensor body is housed. A cover plate is also provided on one side of the protective housing, and the cover plate is integrally connected to the protective housing by screws. Assembly grooves are provided on both opposite inner surfaces of the installation cavity, and clamping blocks are inserted into each groove, with the side of the clamping blocks furthest from the assembly groove contacting the photoelectric sensor body. The photoelectric sensor body has terminals, and corresponding to the terminals, wiring sections are provided on two adjacent sides of the protective housing and cover plate, with the terminals inserted within these wiring sections. A sealing strip is embedded in the mounting groove on the edge of the cover plate, and when compressed, it adheres to the housing to prevent water seepage. The wiring section assembly section has a sealing isolation ring that wraps around the terminals of the photoelectric sensor body to form a seal, providing double protection against moisture intrusion and ensuring the sensor's usability.

This utility model belongs to the field of refrigeration equipment technology, specifically providing a door seal, a refrigeration and freezing equipment, and an injection mold. To solve the problem of low yield rates in injection molding caused by the concave and narrow groove on the outer side of existing door seals, this utility model's door seal includes a fixing part and an airbag part. The fixing part is used to fix the door of the refrigeration and freezing equipment; the airbag part is used to abut against the cabinet of the refrigeration and freezing equipment. The airbag part includes a magnetic strip airbag and a wrapping airbag. The magnetic strip airbag is used to accommodate the magnetic strip. The wall of the magnetic strip airbag away from the fixing part abuts against the cabinet and is referred to as the abutting wall. The other walls of the magnetic strip airbag are referred to as the grooved wall. The wrapping airbag wraps around the grooved wall to prevent the grooved wall from contacting the air outside the refrigeration and freezing equipment. The wrapping airbag includes the outer wall of the airbag that is in contact with the air outside the refrigeration and freezing equipment, and the outer wall protrudes away from the grooved wall. This utility model overcomes the above-mentioned technical problems.

Inflatable paddle hot sealing manufacturing method and system, the inflatable paddle includes a main body and a sealing strip, the main body includes two main body layers, and the sealing strip is combined with the two main body layers into an integrated whole through hot sealing to form an inflatable cavity between the two main body layers and the sealing strip; the system includes a hot sealing device, the hot sealing device includes a support table for supporting the two main body layers and the sealing strip wrapped around the edges of the two main body layers, a compression roller assembly for clamping the main body layers and the sealing strip, and a hot air nozzle for hot sealing the sealing strip and the two main body layers of the main body.

This utility model provides an HSD connector, including a housing and a connecting core. The connecting core is disposed inside the housing and includes multiple pins and a rubber core wrapped around the outside of the multiple pins. Each pin has a welding part at one end, and a baffle is provided between the welding parts of the multiple pins. Compared with the prior art, the HSD connector provided by this utility model has the same electrical performance, is easier to assemble, and the connection structure of the welding method is more stable and reliable.

This invention belongs to the technical field of lifting equipment, specifically relating to an anti-sway lifting device; comprising: a housing, the lower end of which is open; a rotating assembly, which is horizontally disposed within the housing and capable of rotating along its own axis, the rotating assembly having a turntable portion; a suspension assembly, wherein multiple suspension assemblies are sequentially hinged end-to-end, and one of the suspension assemblies at the end is disposed on the turntable portion, the turntable portion being capable of driving the multiple suspension assemblies to wrap around the side of the turntable portion; a limiting portion is provided on the suspension assembly, capable of blocking one side of the rotation direction of two adjacent suspension assemblies, causing the two adjacent suspension assemblies to stop rotating into the same straight line; and a clamping assembly, disposed within the housing, capable of cooperating with the turntable portion to clamp the suspension assembly into a vertical state; thus preventing the object from swaying in the air.

This utility model provides a wheel fastener, belonging to the field of mechanical technology. It solves the problems of inconvenient and time-consuming operation of existing wheel fasteners. This wheel fastener includes a bracket, a strap, a tensioning frame, a reversing shaft, and a belt shaft. The tensioning frame is hinged to the bracket via a hinge shaft. A self-locking shaft and a tensioning shaft are fixed on the tensioning frame, arranged parallel to the hinge shaft and in a triangular distribution. One end of the strap has a hook, and the other end passes sequentially around the reversing shaft, the self-locking shaft, and the tensioning shaft before wrapping around the belt shaft. When the tensioning frame swings to the first position, the tensioning shaft is below the self-locking shaft, and both are located between the hinge shaft and the reversing shaft. When the tensioning frame swings to the second position, the tensioning shaft is below the line connecting the hinge shaft and the reversing shaft, and the self-locking shaft is below the tensioning shaft. During operation, simply rotate the belt shaft gently to pre-tighten, and then push the swinging frame upwards to tighten the strap and achieve self-locking. The operation is simple and labor-saving.

This utility model relates to a wear-resistant wire with a multi-layer protective structure in the field of electrical wires. It includes a core body, an elastic memory layer wrapped around the core body, corrugated reinforcing ribs wrapped around the elastic memory layer, and a segmented wear-resistant sleeve wrapped around the corrugated reinforcing ribs. The segmented wear-resistant sleeve includes a hard wear-resistant sleeve and a flexible wear-resistant sleeve, which are alternately distributed outside the corrugated reinforcing ribs. A suspended protective strip is provided outside the segmented wear-resistant sleeve, and elastic connecting ribs evenly distributed along a ring are installed between the suspended protective strip and the segmented wear-resistant sleeve. This utility model achieves all-round protection for the wire through its multi-layer protective structure. The elastic memory layer recovers its deformation, the corrugated reinforcing ribs disperse pressure, the segmented wear-resistant sleeve balances wear resistance and flexibility, and the suspended protective strip buffers impact, solving the problem of insufficient protection in existing wires and extending their service life.

This application discloses a protective device for traction cables. The cable has a starting end, and the protective device for traction cables includes a fastening member and a traction sleeve. The fastening member forms an insertion channel and an entrance communicating with the insertion channel. The starting end is inserted into the insertion channel from the entrance, and the fastening member wraps around at least a portion of the outer periphery of the starting end. The traction sleeve forms an insertion channel and an opening communicating with the insertion channel. The fastening member is installed in the insertion channel formed by the traction sleeve and is located at the end of the traction sleeve away from the opening. The traction sleeve is fitted around the outer periphery of the starting end, and the end of the traction sleeve away from the opening is connected to the traction equipment. Because the exposed conductor at the starting end is hidden in the insertion channel, contact between the conductor and objects on the transport path can be avoided during cable transport, thereby preventing damage to the conductor and snagging on objects, thus protecting objects on the transport path and ensuring smooth cable transport.

This invention discloses a strip-shaped leakage detection rope, belonging to the field of leakage detection technology. It includes an inner conductor, a braided layer, 3M double-sided adhesive, and release paper. The inner conductor consists of two parallel silver-plated copper foil wires. The braided layer is made of polyester yarn and is evenly wrapped around the two inner conductors. The 3M double-sided adhesive is a high-temperature resistant single-layer structure, with its edges aligned with the edges of the braided layer. The release paper is a waterproof and non-sticky material, consisting of two sheets, each covering one of the two adhesive sides of the 3M double-sided adhesive. It can be easily peeled off without leaving any residue. This invention improves installation fit through its strip structure, allows for flexible application in various scenarios without the need for additional fasteners, clearly distinguishes the adhesive and detection surfaces to ensure detection sensitivity, and is adaptable to temperature and humidity environments from -20°C to +105°C. It features a reliable structure, long service life, and is suitable for leakage early warning detection in various scenarios such as battery packs and computer room equipment, demonstrating significant practicality and innovation.

This product is a shoe holder designed to efficiently dry shoes by utilizing the airflow discharged from an air conditioner's outdoor unit. The product primarily consists of a pair of long plate-like sections and a flexible connecting section that connects the longitudinal base ends of these long plate-like sections in a flexible manner. The user of this product can open or close the product by adjusting the degree of bending of the flexible connecting section, thereby separating or bringing into contact the tips of the pair of long plate-like sections. In the open state, the pair of long plate-like sections and the flexible connecting section as a whole form a roughly L-shape. In the closed state, the overall shape is roughly I-shape. The tip of the first of the pair of long plate-like sections is formed in a hook shape, which, when in use, i.e., in the open state, hooks onto the upper edge of the back surface of the air conditioner's outdoor unit, securing it to the unit's back surface. This securing fixes the main body of the product to the air conditioner's outdoor unit. Furthermore, to facilitate locking, a projection extending in the width direction is provided on the back surface of the hook-shaped tip of the first long plate-shaped part. A short plate-shaped part is provided extending in the width direction in the middle of the second long plate-shaped part of the pair of long plate-shaped parts. The second long plate-shaped part and the short plate-shaped part are connected in a roughly cross shape. A pair of retaining frames for supporting each shoe are arranged symmetrically in the width direction on the short plate-shaped part. Each of the pair of retaining frames consists of a semicircular or elliptical ring part that receives the toe of the shoe and an extended part that supports the heel, holding the sole of the shoe facing the air outlet. This allows air to flow directly into the inside of the shoe, shortening the drying time. In terms of usage, the first long plate-shaped part is wrapped around the top surface to the back of the air conditioner outdoor unit while it is open, and stable fixing is possible without tools. Its shape is designed not to obstruct the ventilation or heat dissipation of the outdoor unit, and the position of the retaining frames is optimized along the airflow path. This product is suitable for households that want to dry their shoes quickly after rain or washing, as well as for users who frequently wash their shoes for sports or work. It is a practical product that makes effective use of outdoor air conditioning units. Furthermore, it is lightweight, has few parts, is easy to carry and store, and can be easily attached and detached as needed.

The application relates to the field of building gypsum processing equipment, in particular to a connecting structure of a building gypsum vibrating screen and an auger. The connecting structure comprises a discharging pipe which is installed at a discharging port of the vibrating screen; and a feeding pipe which is installed at a feeding port of the auger, wherein the discharging pipe is cut into the feeding pipe at a discharging end, an active gap is reserved between the outer wall of the cut-in part of the discharging pipe and the inner wall of the feeding pipe, a flexible sealing piece is wrapped around one end of the outer wall of the discharging pipe and the other end of the feeding pipe, so as to prevent material from overflowing from the active gap, the reliability of the equipment is significantly enhanced through the design of the annular gap between the discharging pipe and the feeding pipe, the displacement caused by installation errors or thermal expansion and cold contraction of the equipment or the displacement caused by vibration during operation is effectively compensated, dynamic changes under different working conditions are adapted, the risk of dislocation caused by stress concentration due to rigid connection of the equipment is avoided, and especially, the connecting part can bear greater pressure without being easily damaged or leaked under the condition of material blockage of the auger.

This utility model discloses a fabric feeding frame, which includes a guide roller. A braking device is installed at either end of the guide roller. The braking device includes a fixed plate, a cylinder, and a brake band. The fixed plate is horizontally mounted on a frame below the shaft end of the guide roller. The cylinder is fitted onto the shaft end of the guide roller. The brake band is wrapped around the upper surface of the cylinder and forms a wrap angle with the cylinder. One end of the brake band is fixed to the fixed plate by a fixing member, and the other end of the brake band is connected to a linear drive mechanism. The linear drive mechanism has a longitudinally arranged movement path. The fabric feeding frame implemented by this utility model can use the linear drive mechanism to drive the other end of the brake band to extend and retract, so that the brake band contacts or disengages from the cylinder, thereby controlling whether the guide roller rotates. It has the advantages of simple structure, convenient operation, and low cost.

This application relates to a cleaning robot and a cleaning device. The cleaning robot includes a first functional assembly, a second functional assembly, and a lifting mechanism, the lifting mechanism including a first rotating member, a first cable with one end wrapped around the first rotating member and the other end connected to the first functional assembly, a second rotating member, a second cable with one end wrapped around the second rotating member and the other end connected to the second functional assembly, and a drive assembly that drives the first rotating member to rotate, thereby raising and lowering the first functional assembly by the first cable, and drives the second rotating member to rotate, thereby raising and lowering the second functional assembly by the second cable. In this way, the first functional assembly and the second functional assembly share a single lifting structure, thereby simplifying the structure of the cleaning robot and reducing manufacturing costs.

The invention relates to a method for operating an installation for producing kraft paper, said installation comprising a compacting device (21) for compacting a fibrous web, in particular a Clupak device, wherein - the compacting device (21) has a circulating cloth (26), a pressing bar (33), a wrap-around roller (34), a tensioning roller (32), a counter roller (28) and preferably a cloth drive roller (31), - the compacting device (21) can be operated in a compacting mode in which the circulating cloth (26) is pressed by the pressing bar (33) in the direction of the counter roller (28) and wraps around the counter roller (28) by a wrap-around angle (35), - in the compacting mode, a compacting gap (30) is formed between the cloth (26) and the counter roller (28), said compacting gap being designed such that the fibrous web is conveyed through the compacting gap at a production speed and is thereby compacted in the machine running direction (1), and - the compacting device (21) can be operated in an emergency running mode in which the pressing bar (33) is retracted in comparison to the compacting mode such that a distance is formed between the cloth (26) and the counter roller (28).

This invention discloses a testing device for tension insulator strings in high-voltage transmission lines, belonging to the field of power line inspection technology. The device includes a C-shaped semi-enclosed support mechanism, a walking drive mechanism, a defect detection mechanism, and a radial adaptive locking adjustment mechanism. The C-shaped semi-enclosed support mechanism adopts an open frame that can be wrapped around the outside of the insulator string. A radial adaptive locking adjustment mechanism is installed at the opening, and an adaptive flexible fitting component is configured on the inner side to achieve assembly gap compensation and stable fitting. The walking drive mechanism adopts a tracked structure adapted to the insulator contour and is combined with a skirt limiting structure to achieve anti-slip and anti-detachment. The defect detection mechanism integrates visual inspection and electrical parameter detection components, enabling online identification of icing, surface damage, and zero / low-value insulation defects. This invention is easy to assemble, highly adaptable, and provides accurate detection, significantly improving inspection safety and automation levels. It is suitable for online automated inspection of tension insulator strings in high-voltage transmission lines.

This case relates to a combined screen-type height-adjustable desk, including a height-adjustable screen assembly, a desk assembly, and a partition panel. The screen panel is composed of multiple panel modules, with embedded slots formed between them in the vertical direction to allow the supporting cantilever to connect to an internal lifting mechanism via these slots. A protective shell assembly is provided within the embedded slots. Based on existing structures, this case optimizes the supporting cantilever of the desktop panel into a supporting assembly. The supporting cantilever, supporting rod, and supporting beam form a triangular load-bearing structure, further enhancing the load-bearing capacity of the supporting assembly and expanding the load-bearing points from both sides to multiple nodes, effectively distributing the load pressure. The protective shell assembly wraps around the edges of the panel modules, preventing scratches and damage during disassembly, installation, and lifting, extending their service life and maintaining their aesthetic appearance. The circuit module is built into the screen panel, reducing external wiring and improving desktop tidiness.

This utility model discloses a positioning device for the top of a steel structure cylinder, comprising two calipers, fastening devices, and a prism sheet device. The two calipers are arranged vertically in a cross shape, and four fastening devices are respectively installed at both ends of the two calipers. Each fastening device includes a C-shaped sliding measuring block that wraps around the bottom of the caliper. A fastening block is fixedly connected to the bottom of the sliding measuring block. The calipers are positioned on the top of the steel structure cylinder, and the fastening blocks are attached to the side of the cylinder. The prism sheet device includes an integral base plate and a prism plate. The prism plate has a positioning target and is positioned at the top of the intersection of the two calipers. The center of the positioning target is aligned with the center point of the intersection of the two calipers. The two calipers are connected to the base plate. The lines of the two calipers intersect at the center of the steel structure cylinder, thus ensuring that the positioning target and the center of the cylinder are vertically aligned. This improves construction efficiency, saves labor, and ensures construction accuracy, demonstrating excellent practicality.

This application relates to a heated atomizer, comprising an insulating frame, a energizing component, an insulating layer, and a heating pipe. The insulating frame has a heating chamber. The energizing component is disposed on the outer surface of the insulating frame. The insulating layer covers the outer surface of the insulating frame and the energizing component; alternatively, the insulating layer wraps around the energizing component. The heating pipe at least partially extends through the heating chamber. In this heated atomizer, because the insulating frame itself is insulated, the energizing component located on the outer surface of the insulating frame is insulated from the heating chamber within the insulating frame. Furthermore, the insulating layer is also insulated, and it can cover or wrap around the energizing component to further insulate it from the outside environment. Thus, when the heated atomizer is in use, the energizing component is energized, and the heating pipe is heated within the heating chamber to generate vapor. Simultaneously, under the protection of the insulating frame and insulating layer, the probability of leakage in the heated atomizer is greatly reduced.

A novel speaker cone includes a cone body and a connecting portion. The cone body's thickness in its axial cross-section gradually decreases from the end with the smaller opening diameter to the end with the larger opening diameter. The cone body includes a first surface layer, a second surface layer, and an intermediate layer. The connecting portion is located at the end of the cone body with the smaller opening diameter, which is the free end of the cone body bent away from the main body. Compared with existing technologies, this invention, by adopting a gradually thinning shape for the cone body, allows for linear energy transmission, reduces sound distortion, and improves sound quality. Furthermore, by using a composite structure, with the first and second surface layers wrapping around both sides of the intermediate layer, the cone body simultaneously possesses waterproof, wear-resistant, and high-temperature resistant properties. The honeycomb structure of the intermediate layer further enhances structural strength and ensures product performance.

This utility model discloses a precision grinding equipment for processing hydraulic cylinder parts for engineering machinery vehicles, belonging to the technical field of grinding equipment. The equipment includes a base, a lower guide frame fixedly connected to the top of the base, an upper guide frame fixedly connected to the top of the lower guide frame, and a movable frame slidably connected to the outer periphery of the lower guide frame. Two lifting cylinders are vertically mounted on the movable frame. These cylinders drive the grinding mechanism upwards, gradually approaching the parts for grinding. An electrostatic adsorption plate collects and adsorbs the dust generated during grinding, greatly improving dust removal efficiency. A tensioning airbag is added, and its expansion and contraction are controlled by an inflation valve and a deflation valve to wrap around the end of the parts, securing them while preventing indentations or scratches on precision parts, thus ensuring product quality.

This utility model relates to a device for picking up and placing pipes in a trench, including a rectangular support frame, two movable legs, and two supporting legs. The two movable legs and two supporting legs are respectively fixed below the four corners of the support frame. The lower end of the movable legs is provided with a first movable wheel, and the lower end of the supporting legs is provided with a second movable wheel. The lower surface of the support frame is provided with at least two sets of lifting parts, which are arranged at intervals along the length of the support frame. The lifting parts include a first pulley, a second pulley, a lifting bar, and a hook. The lower surface of the support frame is provided with a connecting rod and a hook in sequence along the width direction. The first pulley is rotatably connected to the lower surface of the support frame and is located between the connecting rod and the hook. The second pulley is rotatably connected to the lower end of the connecting rod. The central axis of the first pulley and the central axis of the second pulley are both arranged along the length of the support frame. One end of the lifting bar is hooked on the hook, and the other end of the lifting bar passes over the first pulley and is wrapped around the second pulley.

This utility model provides a tunnel surrounding rock grouting reinforcement test device, belonging to the technical field of grouting reinforcement test devices. It includes a flexible membrane and two semi-cylindrical shells. The two semi-cylindrical shells, when fastened together, form a cylindrical space with a closed bottom but an open top. The flexible membrane can wrap around the two semi-cylindrical shells in the fastened state and seal the fastening point. This utility model utilizes a flexible membrane to wrap around the two semi-cylindrical shells in the fastened state, to tighten the two semi-cylindrical shells, and to seal the gap at the fastening point, thereby improving the sealing performance. After grouting is completed and the grout in the cylindrical space solidifies, the flexible membrane can be unwound to loosen the two semi-cylindrical shells. Then, the two semi-cylindrical shells and the solidified cylindrical body inside can be separated manually or with tools. The test device provided by this utility model has good sealing performance, is easy to dismantle, and has low cost.

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.