Damping seamless steel pipe

Abstract

The utility model relates to a steel pipe technical field, a shock attenuation seamless steel pipe, including steel pipe body, the connecting end of first steel pipe and second steel pipe is equipped with buckle frame subassembly respectively, buckle frame subassembly includes welding seat, the side symmetry of two sets of welding seats is installed at the connecting end place of first steel pipe and second steel pipe, the other side welding installation of two groups of clamping blocks one end in welding seat, two groups of clamping blocks staggered type fixed mounting in the other end of welding seat, central support cover fixed mounting between two groups of clamping blocks, the inside of central support cover is provided with several groups of through slot, the inside movable plug -in installation of through slot has telescopic spring, the both ends of telescopic spring all welds and has the locating ring plate, the inside clamping installation of locating ring plate in clamping block. The utility model through the composite design of welding seat and staggered clamping block, realize the balance of rigid locking and elastic compensation of connecting structure, and elastic buffer system effectively reduces the damage of dynamic load to connecting position.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe technology, and in particular to a shock-absorbing seamless steel pipe. Background Technology

[0002] Seamless steel pipes, as an important type of metal tubing, are manufactured by piercing a single round steel bar. Their most notable characteristic is the absence of weld seams on the surface. This feature gives seamless steel pipes unique advantages in structural integrity and strength. Shaped seamless steel pipes are a general term for seamless steel pipes with various cross-sectional shapes besides the common circular cross-section. In structural components, shaped seamless steel pipes can provide optimized mechanical support according to design needs, reducing structural weight while increasing overall strength. In tool manufacturing, their unique shapes can meet the functional requirements of specific tools, improving tool efficiency and durability. In the field of mechanical parts, shaped seamless steel pipes can precisely match the spatial layout and motion requirements of mechanical systems, ensuring the stable operation of mechanical equipment.

[0003] However, such irregularly shaped seamless steel pipes are prone to damage to their threads during storage or disassembly. In particular, the entire seamless steel pipe is quite heavy, generally weighing tens of kilograms or more. The huge weight means that once the threaded part is hit, it will be severely deformed or damaged. In this case, the corresponding seamless steel pipe cannot be used anymore unless it is re-machined, but this is not practical. The users of drilling equipment do not have such machining equipment, and the processing and transportation costs for repairing the damaged seamless steel pipe are often higher than purchasing a new seamless steel pipe. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A shock-absorbing seamless steel pipe includes a steel pipe body, which comprises a first steel pipe and a second steel pipe. The connecting ends of the first and second steel pipes are respectively provided with snap-fit ​​frame assemblies. Each snap-fit ​​frame assembly includes a welding seat, snap-fit ​​blocks, and a central support sleeve. Two sets of welding seats are symmetrically installed on one side at the connecting ends of the first and second steel pipes. One end of each set of snap-fit ​​blocks is welded to the other side of the welding seat, and the two sets of snap-fit ​​blocks are staggered and fixedly installed at the other end of the welding seat. The central support sleeve is fixedly installed between the two sets of snap-fit ​​blocks. The central support sleeve has several sets of through slots inside, and telescopic springs are movably inserted into the through slots. Positioning ring plates are welded to both ends of each telescopic spring, and the positioning ring plates are snap-fitted into the inside of the snap-fit ​​blocks.

[0006] As an improvement to the above technical solution, the side wall of the snap-fit ​​block is provided with several sets of positioning grooves, and the outer wall of the central support sleeve is fixedly installed with several sets of positioning pins. The positioning pins are inserted into the positioning grooves. The top outer wall of the snap-fit ​​block is provided with an outer sealing ring, and the outer sealing ring is tightly installed with the welding seat.

[0007] As an improvement to the above technical solution, an expansion groove is provided on the inner wall of the snap-fit ​​block, and an inner sealing ring is fixedly installed between the expansion grooves. The inner sealing ring is snap-fitted with the positioning ring plate.

[0008] As an improvement to the above technical solution, a welding groove is provided on one side of the welding seat, and a welding rod is fixedly installed inside the welding groove. The ends of the first steel pipe and the second steel pipe are both welded and installed inside the welding groove.

[0009] As an improvement to the above technical solution, the two sets of snap-fit ​​blocks are installed alternately and oppositely on the outer wall of the central support sleeve.

[0010] The beneficial effects of this utility model are:

[0011] 1. The main body of this utility model is a non-standard seamless steel pipe. It is flexibly assembled from a first steel pipe and a second steel pipe through a snap-fit ​​frame assembly. This assembly achieves vibration attenuation under dynamic load through a three-level buffer and shock absorption system, which is suitable for high-frequency vibration or impact conditions. Through the composite design of the welded seat and the staggered snap-fit ​​blocks, the rigid locking and elastic compensation of the connection structure are balanced. The elastic buffer system effectively reduces the damage of dynamic load to the connection parts and significantly improves the durability of the structure. The central support sleeve is fixed between the snap-fit ​​blocks to bear the axial pressure and bending load, preventing the steel pipe connection end from deforming due to uneven force. The slot provides the movement space for the telescopic spring, ensuring that the spring can extend and retract freely. The telescopic spring absorbs vibration energy through elastic deformation, reducing the damage of dynamic load to the connection parts. The positioning ring plate is welded to both ends of the spring and snapped into the inside of the snap-fit ​​block to ensure the stability of the spring's axial force and prevent performance degradation caused by displacement. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present invention;

[0013] Figure 2 This is an unfolded view of the steel pipe body and the buckle frame assembly of this utility model;

[0014] Figure 3 This is an unfolded view of the buckle frame assembly of this utility model;

[0015] Figure 4 This is an unfolded view of the buckle frame assembly of this utility model;

[0016] Figure 5 This is a development diagram of the central support sleeve of this utility model.

[0017] Reference numerals: 1. Steel pipe body; 11. First steel pipe; 12. Second steel pipe; 2. Clip frame assembly; 21. Welding seat; 211. Welding groove; 212. Welding strip; 22. Clip block; 221. Positioning groove; 222. Expansion groove; 223. Inner sealing ring; 224. Outer sealing ring; 23. Central support sleeve; 231. Positioning pin; 232. Through groove; 233. Telescopic spring; 234. Positioning ring plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution:

[0020] A shock-absorbing seamless steel pipe includes a steel pipe body 1, which includes a first steel pipe 11 and a second steel pipe 12. The connecting ends of the first steel pipe 11 and the second steel pipe 12 are respectively provided with a snap-fit ​​frame assembly 2. The snap-fit ​​frame assembly 2 includes a welding seat 21, a snap-fit ​​block 22 and a central support sleeve 23. The two sets of welding seats 21 are symmetrically installed on one side at the connecting ends of the first steel pipe 11 and the second steel pipe 12. One end of the two sets of snap-fit ​​blocks 22 is welded and installed on the other side of the welding seat 21. The two sets of snap-fit ​​blocks 22 are staggered and fixedly installed on the other end of the welding seat 21. The central support sleeve 23 is fixedly installed between the two sets of snap-fit ​​blocks 22. The central support sleeve 23 has several sets of through slots 232 inside. The through slots 232 are movably inserted and installed with telescopic springs 233. The two ends of the telescopic springs 233 are welded with positioning ring plates 234. The positioning ring plates 234 are snap-fitted and installed inside the snap-fit ​​blocks 22.

[0021] In this embodiment, the steel pipe body 1 is a non-shaped seamless steel pipe body, which is assembled from a first steel pipe 11 and a second steel pipe 12 by a snap-fit ​​frame assembly 2. The welding seats 21 of the snap-fit ​​frame assembly 2 are symmetrically fixed to the rigid bases at the connection ends of the first steel pipe 11 and the second steel pipe 12. The snap-fit ​​blocks 22 are staggered and fixed to the mechanical connection components at the other end of the welding seats 21. The central support sleeve 23 is installed between the snap-fit ​​blocks 22 as an elastic support core, including a through groove 232, a telescopic spring 233, and a positioning ring plate 234. The welding seats 21 are symmetrically fixed to the connection ends of the steel pipes by a welding process to form a stable initial connection base, which evenly distributes the local stress at the connection part to the steel pipe wall, avoiding weld cracking or material fatigue caused by stress concentration. The two sets of snap-fit ​​blocks of the snap-fit ​​blocks 22 The interlocking blocks 22 are fixed in a "tooth-like" staggered manner, increasing the contact area and friction, significantly improving the tensile and shear strength of the connection structure. The space reserved inside the snap-fit ​​blocks 22 is used to install the positioning ring plate 234, allowing the connection part to produce a small displacement when under force, avoiding brittle fracture caused by rigid connection. The central support sleeve 23 is fixed between the snap-fit ​​blocks 22 to bear axial pressure and bending load, preventing the steel pipe connection end from deforming due to uneven force. The through slot 232 provides a space for the telescopic spring 233 to move, ensuring that the spring can extend and retract freely. The telescopic spring 233 absorbs vibration energy through elastic deformation, reducing the damage of dynamic load to the connection part. The positioning ring plate 234 is welded to both ends of the spring and snapped into the inside of the snap-fit ​​blocks 22 to ensure the stability of the spring under axial force and prevent performance degradation caused by displacement.

[0022] Operating Procedure: Clean the surface of the connecting end of the first steel pipe 11 and the second steel pipe 12 to remove oil, oxide layer and burrs. Check the integrity of the welding seat 21, snap-fit ​​block 22, central support sleeve 23 and spring assembly to confirm that there are no cracks, deformation or rust. Weld the two sets of welding seats 21 symmetrically to the connecting end of the first steel pipe 11 and the second steel pipe 12. Use a multi-layer multi-pass welding process to avoid overheating of the weld and resulting coarse grains. Assemble the snap-fit ​​block 22 by welding one end of the snap-fit ​​block 22 to the other side of the welding seat 21 to ensure a firm weld. Fix the two sets of snap-fit ​​blocks 22 to the welding seat 21 in an alternating manner to form a "tooth-type" connection structure. Fit the central support sleeve 23 between the two sets of snap-fit ​​blocks 22 and adjust its position to align with the snap-fit ​​block 22. Insert the telescopic spring 233 into the through groove 232, weld the positioning ring plate 234 at both ends, and snap the positioning ring plate 234 into the reserved groove inside the snap-fit ​​block 22.

[0023] Beneficial effects: The steel pipe body 1 is a special-shaped seamless steel pipe body, which is flexibly assembled from the first steel pipe 11 and the second steel pipe 12 through the snap-fit ​​frame assembly 2. This assembly achieves vibration attenuation under dynamic load through a three-level buffer system, which is suitable for high-frequency vibration or impact conditions. Through the composite design of the welding seat 21 and the staggered snap-fit ​​block 22, the rigid locking and elastic compensation of the connection structure are balanced. The elastic buffer system effectively reduces the damage of dynamic load to the connection parts and significantly improves the durability of the structure.

[0024] Specifically, the side wall of the snap-fit ​​block 22 is provided with several sets of positioning grooves 221, and the outer wall of the central support sleeve 23 is fixedly installed with several sets of positioning pins 231. The positioning pins 231 are inserted into the inside of the positioning grooves 221. The top outer wall of the snap-fit ​​block 22 is provided with an outer sealing ring 224, which is tightly installed with the welding seat 21.

[0025] In this embodiment, the positioning pin 231 is inserted into the positioning groove 221 of the snap-fit ​​block 22 to form a rigid mechanical connection, ensuring that the connection ends of the first steel pipe 11 and the second steel pipe 12 are precisely aligned in the axial and radial directions. The cooperation between the positioning pin 231 and the positioning groove 221 restricts the relative displacement of the connection parts and prevents the connection from loosening due to vibration or impact. The staggered snap-fit ​​design of the snap-fit ​​block 22, with "tooth-type" staggered fixation, significantly increases the contact area with the welding seat 21 and the central support sleeve 23, and improves the tensile and shear strength of the connection structure. The elastic buffer system of the central support sleeve 23 is fixed between the snap-fit ​​blocks 22 to bear the axial pressure and bending load, preventing the steel pipe connection ends from deforming due to uneven force. The telescopic spring 233 absorbs the energy of the dynamic load through elastic deformation, reducing damage to the connection parts. The positioning ring plate 234 is welded to both ends of the spring and snapped into the inside of the snap-fit ​​block 22 to ensure the stability of the spring axial force and prevent performance degradation caused by displacement.

[0026] Specifically, the inner wall of the snap-fit ​​block 22 is provided with an expansion groove 222, and an inner sealing ring 223 is fixedly installed between the expansion grooves 222. The inner sealing ring 223 is snap-fitted with the positioning ring plate 234.

[0027] In this embodiment, the steel pipe will undergo thermal expansion under high temperature or high pressure conditions. The expansion groove 222 provides elastic deformation space for the inner wall of the snap-fit ​​block 22, avoiding cracking or deformation of the connection part due to thermal stress. The expansion groove 222 allows the snap-fit ​​block 22 to produce slight elastic deformation during assembly, which facilitates the precise snap-fit ​​of the inner sealing ring 223 and the positioning ring plate 234. The inner sealing ring 223 is fixed between the expansion grooves 222 and snaps with the positioning ring plate 234 of the central support sleeve 23 to form a dynamic sealing structure, preventing the leakage of media such as oil, water, and gas from the connection part. The positioning ring plate 234 snaps into the inside of the inner sealing ring 223 to form a rigid connection, preventing the central support sleeve 23 from axial or radial displacement.

[0028] Specifically, a welding groove 211 is provided on one side of the welding seat 21, and a welding strip 212 is fixedly installed inside the welding groove 211. The ends of the first steel pipe 11 and the second steel pipe 12 are both welded and installed inside the welding groove 211.

[0029] In this embodiment, the welding groove 211 provides a fixed installation position for the ends of the first steel pipe 11 and the second steel pipe 12, ensuring that the axis of the steel pipe is aligned with the axis of the welding seat 21 to avoid assembly deviation. The welding groove 211 evenly distributes the welding stress to the entire groove structure, reducing local stress concentration and lowering the risk of weld cracking. The welding rod 212, as a filler material, can improve the fluidity of the weld metal, reduce defects such as porosity and cracks, and improve the density of the weld. The ends of the steel pipes are completely embedded in the welding groove 211 and fixed by fusion welding to form a high-strength rigid connection that can withstand axial tensile force, shear force and bending moment.

[0030] Specifically, the two sets of snap-fit ​​blocks 22 are installed alternately and oppositely on the outer wall of the central support sleeve 23.

[0031] In this embodiment, the interlocking and oppositely installed snap-fit ​​blocks 22 serve to form a "tooth-type" structure by installing the two sets of snap-fit ​​blocks 22 in an interlocking manner, so that the connection part has high tensile and shear resistance in both the axial and radial directions.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A shock-absorbing seamless steel pipe, characterized in that: The system includes a steel pipe body (1), which includes a first steel pipe (11) and a second steel pipe (12). The connecting ends of the first steel pipe (11) and the second steel pipe (12) are respectively provided with snap-fit ​​frame assemblies (2). The snap-fit ​​frame assembly (2) includes a welding seat (21), a snap-fit ​​block (22), and a central support sleeve (23). One side of each of the two sets of welding seats (21) is symmetrically installed at the connecting ends of the first steel pipe (11) and the second steel pipe (12). One end of each of the two sets of snap-fit ​​blocks (22) is welded to the welding seat. On the other side of (21), two sets of snap-fit ​​blocks (22) are fixedly installed at the other end of the welding seat (21) in an alternating manner. The central support sleeve (23) is fixedly installed between the two sets of snap-fit ​​blocks (22). The central support sleeve (23) has several sets of through slots (232) inside. A telescopic spring (233) is movably inserted into the inside of the through slot (232). Both ends of the telescopic spring (233) are welded with positioning ring plates (234). The positioning ring plates (234) are snap-fitted into the inside of the snap-fit ​​block (22).

2. The shock-absorbing seamless steel pipe according to claim 1, characterized in that: The side wall of the snap-fit ​​block (22) is provided with several sets of positioning grooves (221), and the outer wall of the central support sleeve (23) is fixedly installed with several sets of positioning pins (231). The positioning pins (231) are inserted into the inside of the positioning grooves (221). The top outer wall of the snap-fit ​​block (22) is provided with an outer sealing ring (224), and the outer sealing ring (224) is tightly installed with the welding seat (21).

3. The shock-absorbing seamless steel pipe according to claim 1, characterized in that: The inner wall of the snap-fit ​​block (22) is provided with an expansion groove (222), and an inner sealing ring (223) is fixedly installed between the expansion grooves (222). The inner sealing ring (223) is snap-fitted to the positioning ring plate (234).

4. The shock-absorbing seamless steel pipe according to claim 1, characterized in that: A welding groove (211) is provided on one side of the welding seat (21), and a welding strip (212) is fixedly installed inside the welding groove (211). The ends of the first steel pipe (11) and the second steel pipe (12) are both welded and installed inside the welding groove (211).

5. A shock-absorbing seamless steel pipe according to claim 1, characterized in that: The two sets of snap-fit ​​blocks (22) are staggered and oppositely mounted on the outer wall of the central support sleeve (23).

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