Stainless steel pipe with internal pressure resistant support structure

Abstract

The utility model relates to stainless steel pipe technical field discloses a stainless steel pipe with inside anti -pressing support structure, include: stainless steel pipe body, the inner wall of stainless steel pipe body is provided with a plurality of dovetail groove in the circumference, support subassembly is arranged in the inside of stainless steel pipe body, support subassembly includes pipe hoop spare, the support rod that is connected in each pipe support spare between and the dovetail pin that sets up in pipe support spare and is connected with dovetail groove cooperation, pipe support spare is arc structure, and the number of pipe support spare is three, three pipe support spare is connected and forms triangle support structure through support rod, the number of support rod is a plurality, and a plurality of support rod is along the axial interval distribution of stainless steel pipe body, dovetail pin and pipe support spare are integral moulded structure, the utility model discloses extrusion resistance performance is strong, and the connection is firm, and light weight reduces the capital, and maintenance is convenient, easy to mass production.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, specifically to a stainless steel pipe with an internal pressure-resistant support structure. Background Technology

[0002] Stainless steel pipes are widely used in building water supply and drainage, machinery manufacturing, chemical media transportation, outdoor municipal engineering, and new energy equipment pipelines. However, current stainless steel pipe technology has significant shortcomings, specifically as follows:

[0003] Traditional strength enhancement solutions have limitations: to meet the requirements of compression resistance, existing technologies mostly rely on thickening the pipe wall. This method not only increases the weight of the pipe and the consumption of raw materials, increasing costs, but also requires the adaptation to more powerful transportation and installation equipment, limiting its applicability. At the same time, thickening the pipe wall cannot solve the problem of localized stress concentration, and the pipe wall is still prone to denting and cracking under dynamic loads.

[0004] Existing internal support structures lack reliability: some stainless steel pipes with internal supports either lack effective restraint when connecting the support to the inner wall of the pipe, making them prone to slippage under pressure; or require drilling holes in the pipe wall for fixation, which compromises the integrity of the pipe and makes it prone to loosening due to vibration. In addition, traditional support structures (such as cross-shaped and straight-line shapes) have poor stress distribution, and external pressure tends to concentrate at the support intersections, leading to support breakage or pipe wall collapse.

[0005] High maintenance costs and difficulties: Most existing internal supports are integrally welded. Once a part is damaged, the entire pipe needs to be cut to replace the support structure. This not only disrupts the continuity of the pipe, but also requires re-welding and anti-corrosion treatment. The maintenance cycle is long and the cost is high, making it difficult to adapt to continuous production scenarios.

[0006] Poor adaptability hinders mass production: Existing support structures are mostly designed with fixed specifications. Support components need to be designed separately for stainless steel pipes of different lengths and inner diameters. This results in low versatility, leading to a wide variety of production molds, high inventory pressure, and hindering industrialized mass production. Utility Model Content

[0007] The purpose of this invention is to provide a stainless steel pipe with an internal pressure-resistant support structure to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel pipe with an internal anti-pressure support structure, comprising:

[0009] The stainless steel pipe body has multiple dovetail grooves arranged circumferentially on the inner wall of the stainless steel pipe body.

[0010] A support assembly is disposed inside the stainless steel pipe body. The support assembly includes a pipe clamp, a support rod connected between each of the pipe supports, and a dovetail pin disposed on the pipe support and connected to the dovetail groove.

[0011] Preferably, the tube support is an arc-shaped structure, and there are three tube supports, which are connected by the support rod to form a triangular support structure.

[0012] Preferably, there are multiple support rods, and the multiple support rods are distributed at intervals along the axial direction of the stainless steel tube body.

[0013] Preferably, the dovetail pin and the tube support are integrally formed.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Significantly improved compression resistance

[0016] The support assembly consists of three arc-shaped tube supports that form a triangular support structure through support rods. By utilizing the geometric invariance of triangles, external pressure is evenly distributed to the circumferential direction of the inner wall of the tube, avoiding local stress concentration. This structure can stably adapt to high-intensity application scenarios such as high-pressure transmission and underground load-bearing.

[0017] 2. The connection is firm and reliable for long-term use.

[0018] The pipe support uses a dovetail pin to engage with a dovetail groove on the inner wall of the pipe body to achieve bidirectional limiting of axial anti-slip and radial anti-detachment. Even when the pipe body expands or contracts due to vibration or temperature changes, the support component will not shift or detach.

[0019] The dovetail pin and tube support are integrally molded, with no splicing gaps, resulting in high structural strength, low risk of breakage, and the ability to meet long-term use requirements.

[0020] 3. Lightweight design reduces costs and improves efficiency.

[0021] While ensuring compressive strength, this invention can reduce the wall thickness of the stainless steel pipe body, reduce raw material consumption and pipe weight, and lower overall production costs; at the same time, it can reduce transportation load, simplify installation operations, and improve transportation and installation efficiency.

[0022] 4. Flexible and adaptable, easy to maintain

[0023] Multiple support rods are spaced apart along the pipe axis, and the number of support rods can be flexibly adjusted according to the pipe length. There is no need to design support components separately for different specifications of pipes, which is highly versatile and reduces the types of production molds.

[0024] The support components are slidably connected to the pipe body through dovetail grooves. When a part of the support component is damaged, there is no need to cut the pipe. The damaged section can be removed and replaced, which greatly shortens the repair time and reduces maintenance costs.

[0025] 5. Simple structure, easy to mass-produce

[0026] The tube supports, support rods, and dovetail pins of the support components are all standardized structures that can be mass-produced through mature processes such as stamping and cutting. No drilling or welding is required during assembly; the support components can be installed simply by sliding them into the dovetail grooves. This makes them compatible with large-scale production lines and meets the market's demand for large-volume supply. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a front view of the present invention;

[0029] Figure 3 This is a schematic diagram of the support component in this utility model.

[0030] In the figure: 1. Stainless steel pipe body; 2. Dovetail groove; 3. Support component; 31. Pipe support; 32. Support rod; 33. Dovetail pin. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-3 This utility model provides the following technical solution: a stainless steel pipe with an internal anti-pressure support structure, comprising: a stainless steel pipe body 1, wherein multiple dovetail grooves 2 are circumferentially arranged on the inner wall of the stainless steel pipe body 1; and a support assembly 3, which is disposed inside the stainless steel pipe body 1, the support assembly 3 including pipe clamps 31, support rods 32 connected between the pipe clamps 31, and dovetail pins 33 disposed on the pipe clamps 31 and connected to the dovetail grooves 2. The pipe clamps 31 are arc-shaped, and there are three pipe clamps 31, which are connected by the support rods 32 to form a triangular support structure. There are multiple support rods 32, and the multiple support rods 32 are distributed at intervals along the axial direction of the stainless steel pipe body 1. The dovetail pins 33 and the pipe clamps 31 are integrally formed.

[0033] Specifically, the inner wall of the stainless steel pipe body 1 has multiple dovetail grooves 2 pre-set circumferentially, and the pipe support 31 in the support assembly 3 is provided with dovetail pins 33 that are adapted to the dovetail grooves 2 (and the dovetail pins 33 and the pipe support 31 are integrally formed without splicing gaps). During assembly, the dovetail pins 33 of the support assembly 3 are aligned with the dovetail grooves 2 on the inner wall of the stainless steel pipe body 1, and the connection is completed by sliding along the pipe axis. The trapezoidal locking structure of the dovetail grooves 2 can restrict the "axial sliding" (preventing the support assembly 3 from shifting along the length of the pipe) and "radial disengagement" (preventing the support assembly 3 from falling outward from the inner wall of the stainless steel pipe body 1) of the dovetail pins 33, thereby firmly fixing the support assembly 3 inside the stainless steel pipe body 1 and providing a stable foundation for subsequent pressure resistance.

[0034] The geometric deformation resistance of the triangular support: The three arc-shaped tube supports 31 of the support assembly 3 are connected by support rods 32 to form a complete triangular support structure. Due to the "geometric invariability" of the triangle, when the stainless steel pipe body 1 is subjected to external extrusion pressure (such as ground pressure, equipment collision, media transportation pressure, etc.), the pressure will first be transmitted to the stainless steel pipe body 1, and then conducted from the inner wall of the stainless steel pipe body 1 to the three arc-shaped tube supports 31; the tube supports 31 distribute the pressure evenly to the three vertices and sides of the triangular structure through the support rods 32, avoiding pressure concentration at a certain point that could cause the stainless steel pipe body 1 to dent or the components of the support assembly 3 to break.

[0035] Uniform axial protection with multiple support rods: Multiple support rods 32 are distributed at intervals along the axial direction of the stainless steel pipe body 1, which can decompose the "overall pressure" of the stainless steel pipe body 1 in the length direction into "segmented local pressure" - the support rods 32 in each interval area and the pipe support 31 form an independent local support unit, ensuring that every position of the stainless steel pipe body 1 from one end to the other can obtain support force, avoiding the problem of "central collapse" due to the lack of support in the middle area caused by the excessive length of the stainless steel pipe body 1.

[0036] When the external pressure exceeds the bearing capacity of the stainless steel pipe body 1 alone, the support component 3 will form a "cooperative bearing structure" with the stainless steel pipe body 1 through the rigid connection between the dovetail pin 33 and the dovetail groove 2: the stainless steel pipe body 1 bears part of the radial pressure, and the support component 3 bears the remaining pressure and disperses it through the triangular structure; at the same time, the integrally formed dovetail pin 33 and pipe support 31 can avoid the connection part from breaking, ensure the stable transmission of support force, and ultimately achieve the anti-pressure effect of "the stainless steel pipe body 1 does not dent and the support component 3 does not fail", which is suitable for the anti-compression requirements of construction, chemical, new energy and other scenarios.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel pipe having an internal pressure resistant support structure, characterized by, include: Stainless steel pipe body (1), the inner wall of the stainless steel pipe body (1) is provided with a plurality of dovetail grooves (2) in the circumferential direction; Support assembly (3) is disposed inside the stainless steel pipe body (1). The support assembly (3) includes pipe support (31), support rod (32) connected between each pipe support (31), and dovetail pin (33) disposed on the pipe support (31) and connected to the dovetail groove (2).

2. A stainless steel pipe having an internal pressure resistant support structure according to claim 1, characterized by: The tube support (31) has an arc-shaped structure, and there are three tube supports (31). The three tube supports (31) are connected by the support rod (32) to form a triangular support structure.

3. A stainless steel pipe with an internal pressure-resistant support structure according to claim 1, characterized in that: The number of the support rods (32) is multiple, and the multiple support rods (32) are distributed at intervals along the axial direction of the stainless steel pipe body (1).

4. The stainless steel pipe having an internal pressure resistant support structure according to claim 1, characterized by: The dovetail pin (33) and the tube support (31) are integrally formed.

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