High-performance woven stainless steel pipe

Abstract

The utility model provides a high-performance woven stainless steel pipe, which relates to the technical field of pipe fittings, and comprises a hose main body, a stainless steel sleeve and a connecting flange, the outer wall of the connecting flange is provided with a buckling ring groove, a supporting mechanism is fixed in the buckling ring groove, the supporting mechanism comprises a semicircular hoop and a semicircular ring sleeve, the semicircular hoops and the semicircular rings are sleeved with guide sliding grooves, linkage sliding blocks are connected into the guide sliding grooves in a sliding mode, distance adjusting connecting rods are rotationally connected to the linkage sliding blocks, the ends of every two adjacent distance adjusting connecting rods are meshed through gears, and the outer edges of the semicircular hoops are connected with distance adjusting screw rods in a threaded fit mode. And a limiting ring is arranged at the end part of the distance adjusting screw rod and is rotationally connected to the semicircular ring sleeve. According to the utility model, the stainless steel sleeve can be externally supported through the length-adjustable supporting mechanism, so that the pull-apart condition caused by excessive bending of the stainless steel sleeve is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings technology, specifically to a high-performance braided stainless steel pipe. Background Technology

[0002] Stainless steel braided hose is a flexible pipe wrapped with a braided layer of stainless steel wire. It combines the strength of metal with the flexibility of hose and is widely used in various fluid transportation scenarios. It has the advantages of enhanced pressure resistance, tensile strength and prevention of pipe bursting.

[0003] To enhance the sealing, stability, and pressure resistance of the connection, and to meet the installation requirements under specific working conditions, flanges are usually welded to both ends of the stainless steel braided hose. This prevents the threaded connection from loosening or leaking due to vibration. However, the flanges at both ends directly limit the overall length of the stainless steel braided hose. When the length selection margin is not appropriate, for some pipelines with limited installation space and lateral offset installation position, the connection between the stainless steel braided hose and the flange may be crossed, bent, and twisted. Due to the low welding strength between the stainless steel braid and the welded flange, stress concentration may occur during high-pressure fluid transportation, causing the braided mesh of the hose flange welded part to break, or even resulting in pipe bursting. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-performance braided stainless steel tube, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-performance braided stainless steel hose includes a hose body with a stainless steel sleeve braided on the outside. Connecting flanges are fixed at both ends of the hose, and a welding sleeve is provided at the rear end of each connecting flange. The inner wall of the welding sleeve is welded to the outer wall of the stainless steel sleeve. A fastening ring groove is formed on the outer wall of the welding sleeve, and a support mechanism is fixed within the fastening ring groove. The support mechanism includes two symmetrically arranged sets of semi-circular clamps and several semi-circular sleeves. The semi-circular sleeves are slidably fitted onto the outer wall of the stainless steel sleeve. Several guide grooves are formed on the outer edges of the semi-circular clamps and the semi-circular sleeves. A connecting slider is slidably connected within the guide groove. Two pivot shafts are spaced apart on the connecting slider. Adjustable distance connecting rods extending to both sides are rotatably connected to the two pivot shafts respectively. Gears mesh between the ends of the two adjustable distance connecting rods, and the other end of each adjustable distance connecting rod is rotatably connected to the pivot shaft of an adjacent connecting slider.

[0009] Preferably, the inner wall of the semicircular clamp is provided with a limiting protrusion that fits into the fastening ring groove, and the two ends of the semicircular clamp and the semicircular ring sleeve are provided with connecting blocks, and fastening bolts are connected between the two sets of connecting blocks.

[0010] Preferably, the semicircular clamp is provided with a plurality of guide slide rods on the side facing the semicircular ring, and the semicircular ring is slidably connected to the guide slide rods.

[0011] Preferably, the outer edge of the semicircular clamp is threadedly connected to an adjusting screw. The end of the adjusting screw is provided with a limiting ring. A U-shaped groove is provided on the semicircular ring near the side of the semicircular clamp. An external convex groove is provided inside the U-shaped groove. The adjusting screw slides through the U-shaped groove. The limiting ring is rotatably inserted into the external convex groove. The front and rear sidewalls of the external convex groove abut against the front and rear sides of the limiting ring. An adjusting knob is provided at the end of the adjusting screw.

[0012] Preferably, a limiting top plate is provided at the top of the guide groove, and the limiting top plate abuts against the upper side of the linkage slider.

[0013] (III) Beneficial Effects

[0014] This invention provides a high-performance braided stainless steel tube. It has the following beneficial effects:

[0015] 1. In this utility model, two sets of semi-circular clamps and semi-circular ring sleeves can be formed into an annular sleeve by fastening bolts to restrict the outer wall of the stainless steel sleeve. The semi-circular clamps and the fastening ring grooves cooperate with each other to keep the semi-circular ring sleeve and the connecting flange concentric. This ensures that the part of the stainless steel sleeve near the connecting flange is in a straight state, avoiding the cross bending and twisting at the connection position of the stainless steel sleeve and the connecting flange, which could cause the stainless steel sleeve to break.

[0016] 2. In this utility model, the distance between the semi-circular clamp and the semi-circular ring sleeve can be adjusted by rotating the adjusting screw. Furthermore, the distance adjustment linkage with meshing gears rotates synchronously with the connecting slider to change the distance between two adjacent semi-circular ring sleeves, thereby changing the overall length of the support mechanism. This limits the length at which the stainless steel sleeve and the connecting flange remain concentric, maintains stress dispersion at the end of the stainless steel sleeve, and prevents breakage. At the same time, it prevents the bending radius of the remaining parts from being greater than 5 times the outer diameter of the hose, thus preventing creases that could lead to breakage. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a high-performance braided stainless steel tube according to the present invention;

[0018] Figure 2 This is a cross-sectional view of a high-performance braided stainless steel tube according to the present invention.

[0019] Figure 3 This is a schematic diagram of the support mechanism in this utility model;

[0020] Figure 4 This is a schematic diagram of the adjustable linkage in this utility model.

[0021] In the diagram: 1. Hose body; 2. Stainless steel sleeve; 3. Connecting flange; 4. Welded sleeve; 5. Semi-circular clamp; 6. Semi-circular ring; 7. Limiting protrusion ring; 8. Connecting block; 9. Fastening bolt; 10. Guide slide rod; 11. Adjusting screw; 12. Adjusting knob; 13. Limiting ring; 14. Linking slider; 15. Pivot shaft; 16. Adjusting linkage. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model embodiment provides a high-performance braided stainless steel tube, such as Figure 1-2 As shown, the device includes a hose body 1, with a stainless steel sleeve 2 braided on the outer side of the hose body 1. Connecting flanges 3 are fixed to both ends of the hose. A welding sleeve 4 is provided at the rear end of the connecting flange 3. The inner wall of the welding sleeve 4 is welded to the outer wall of the stainless steel sleeve 2. A fastening ring groove is formed on the outer wall of the welding sleeve 4. A support mechanism is fixed within the fastening ring groove. The support mechanism includes two symmetrically arranged sets of semi-circular clamps 5 and several semi-circular ring sleeves 6. The two sets of semi-circular clamps 5 can be interlocked to form a circular clamp. The inner wall of the semi-circular clamp 5 is provided with a limiting protrusion 7 that mates with the fastening ring groove. The positioning protrusion 7 is inserted into the locking ring groove. The two sets of semi-circular ring sleeves 6 can be interlocked to form a circular ring sleeve. The two ends of the semi-circular clamp 5 and the semi-circular ring sleeve 6 are provided with connecting blocks 8. The two sets of connecting blocks 8 are connected by locking bolts 9. The locking bolts 9 can allow the support mechanism to be detachably sleeved on the outer wall of the stainless steel sleeve 2, forming an external support on the outer wall of the stainless steel sleeve 2. At the same time, the locking ring groove and the limiting protrusion 7 can keep the support mechanism and the connecting flange 3 concentric. The external support keeps this part of the stainless steel sleeve 2 vertical, avoiding excessive stress concentration and causing the stainless steel sleeve 2 to break.

[0024] The semicircular clamp 5 has several guide slide rods 10 on the side facing the semicircular ring 6. The semicircular ring 6 has guide holes corresponding to the guide slide rods 10. The guide holes of the semicircular ring 6 are slidably fitted onto the guide slide rods 10, which serve as guides to maintain the concentric alignment of the semicircular rings 6 and the semicircular clamp 5. The outer edge of the semicircular clamp 5 has a threaded hole, and an adjusting screw 11 is threaded into the threaded hole. An adjusting knob 12 is provided at the outer end of the adjusting screw 11 for easy rotation. Rotating the adjusting knob 12 allows for... The adjusting screw 11 is moved back and forth on the semicircular clamp 5. A U-shaped groove is provided on the semicircular ring 6 near the semicircular clamp 5. The width of the U-shaped groove is greater than the outer diameter of the adjusting screw 11, so that the adjusting screw 11 can be extended and inserted into the U-shaped groove. The U-shaped groove has an external protrusion groove inside. A limit ring 13 is provided at the end of the adjusting screw 11. The limit ring 13 is rotatably inserted into the external protrusion groove. By rotating the adjusting screw 11, the semicircular ring 6 can be pushed and pulled by the limit ring 13, thereby changing the distance between the semicircular ring 6 near the semicircular clamp 5 and the semicircular clamp 5.

[0025] like Figure 3-4 As shown, the semicircular ring sleeve 6 is slidably fitted onto the outer wall of the stainless steel sleeve 2. Several guide grooves are provided on the outer edges of the semicircular clamp 5 and the semicircular ring sleeves 6. A connecting slider 14 is slidably connected within each guide groove. Two pivot shafts 15 are spaced apart on each connecting slider 14. Adjustable distance connecting rods 16 extending to both sides are rotatably connected to each of the two pivot shafts 15. Gears mesh between the ends of the two adjustable distance connecting rods 16. The other end of each adjustable distance connecting rod 16 is rotatably connected to the pivot shaft 15 of the adjacent connecting slider 14. The distance between the semicircular ring sleeve 6 and the semicircular clamp 5 can be adjusted to change the... The tilt angle of the adjustable linkage 16 between the semicircular ring sleeve 6 and the semicircular clamp 5 is adjusted, and multiple adjustable linkages 16 can rotate together at the same tilt angle through gear meshing of two adjacent adjustable linkages 16. This can change the distance between two adjacent linkage sliders 14 and push two adjacent semicircular ring sleeves 6 away from or towards each other. This can change the overall length of the support mechanism, that is, change the support length of the support mechanism for the stainless steel sleeve 2, and avoid stress concentration on the welding position of the stainless steel sleeve 2, which could cause it to break. The top of the guide groove is provided with a limiting top plate, which abuts against the upper side of the linkage slider 14.

[0026] Working principle:

[0027] In this utility model, the semi-circular clamp 5 and the semi-circular ring sleeve 6 can be fastened together on the outside of the stainless steel sleeve 2. The limiting protrusion 7 of the semi-circular clamp 5 is inserted into the fastening ring groove with a concave-convex fit and is fixed by the fastening bolt 9, so that the support mechanism forms a cylindrical structure, which is sleeved on the outside of the stainless steel sleeve 2 to form an external support, so that this part of the stainless steel sleeve 2 remains concentric and straight, avoiding stress concentration caused by staggered bending and twisting near the welding position of the stainless steel sleeve 2, so that the welding position of the stainless steel sleeve 2 will not be torn.

[0028] In this invention, the rotation of the adjusting screw 11 can push the semicircular ring sleeve 6 away from the semicircular clamp 5, and the linkage slider 14 and adjusting rod 16 can cause several semicircular ring sleeves 6 to expand synchronously, increasing the length of the support mechanism. By adjusting the support length of the support mechanism on the stainless steel sleeve 2, the bending stress will not act on the welding position of the stainless steel sleeve 2, while ensuring that the bending radius of the part of the stainless steel sleeve 2 without the support mechanism is ≥ 5 times the outer diameter of the hose, thus preventing creases from causing breakage.

[0029] 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 high-performance braided stainless steel hose, comprising a hose body, wherein a stainless steel sleeve is braided on the outer side of the hose body, characterized in that: The hose is fixed with connecting flanges at both ends. A welding sleeve is provided at the rear end of the connecting flange. The inner wall of the welding sleeve is welded to the outer wall of the stainless steel sleeve. A fastening ring groove is provided on the outer wall of the welding sleeve. A support mechanism is fixed in the fastening ring groove. The support mechanism includes two sets of semi-circular clamps and several semi-circular rings arranged symmetrically. The semi-circular rings are slidably fitted on the outer wall of the stainless steel sleeve. Several guide grooves are provided on the outer edges of the semi-circular clamps and the semi-circular rings. A linkage slider is slidably connected in the guide groove. Two pivot shafts are arranged at intervals on the linkage slider. Adjustment rods extending to both sides are rotatably connected to the two pivot shafts respectively. Gears mesh between the ends of the two adjustment rods. The other end of the adjustment rod is rotatably connected to the pivot shaft of the adjacent linkage slider.

2. A high performance woven stainless steel tube according to claim 1, characterized in that: The inner wall of the semicircular clamp is provided with a limiting protrusion that fits into the fastening ring groove. The two ends of the semicircular clamp and the semicircular ring sleeve are provided with connecting blocks, and fastening bolts are connected between the two sets of connecting blocks.

3. A high performance woven stainless steel tube according to claim 2, characterised in that: The semicircular clamp is provided with several guide slide rods on the side facing the semicircular ring, and the semicircular ring is slidably connected to the guide slide rods.

4. A high performance woven stainless steel tube according to claim 3, characterised in that: The outer edge of the semicircular clamp is threadedly connected to an adjusting screw. The end of the adjusting screw is provided with a limit ring. A U-shaped groove is provided on the semicircular ring near the side of the semicircular clamp. An external convex groove is provided inside the U-shaped groove. The adjusting screw slides through the U-shaped groove. The limit ring is rotatably inserted into the external convex groove. The front and rear side walls of the external convex groove abut against the front and rear sides of the limit ring. An adjusting knob is provided at the end of the adjusting screw.

5. A high performance woven stainless steel tube according to claim 3, wherein: The top of the guide groove is provided with a limiting top plate, which abuts against the upper side of the linkage slider.

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