Corrosion-resistant high-strength composite stainless steel pipe

Abstract

The utility model relates to the technical field of stainless steel pipes, and particularly discloses a corrosion-resistant high-strength composite stainless steel pipe which comprises a protective outer pipe, a corrosion-resistant inner pipe is arranged in the protective outer pipe, and four groups of pressure-resistant plates with arc-shaped structures are arranged between the corrosion-resistant inner pipe and the protective outer pipe. The pressure-resistant plate is provided with a pressure-resistant assembly used for protecting the corrosion-resistant inner pipe and a quick connection assembly used for connecting the pressure-resistant plate and the protective outer pipe, the inner wall of the protective outer pipe is provided with a plurality of joining grooves which are evenly distributed at equal intervals, and the joining grooves are matched with the quick connection assembly in position; the quick connecting assembly comprises a movable groove formed in the pressure-resistant plate, a movable plate is arranged in the movable groove in a penetrating mode, an inserting hole is formed in the side, close to the protective outer pipe, of the movable groove, a mounting hole is formed in the side, close to the corrosion-resistant inner pipe, of the movable groove, and a movable inserting rod is fixedly connected to the tail end of a connecting spring. According to the utility model, the outer pipe and the inner pipe can be conveniently assembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to stainless steel pipe technology field especially is related to a kind of corrosion-resistant high-strength composite stainless steel pipe. BACKGROUND

[0002] Stainless steel pipe is mainly made of stainless steel, which has the characteristics of resisting air, steam, water and other weak corrosive media, and acid, alkali and salt chemical corrosive media.

[0003] The current stainless steel pipe has weak extrusion resistance, and when subjected to external extrusion force, the stainless steel pipe is prone to indentation at the compressed part;

[0004] The existing public technical solution, the announcement number CN220204935U discloses a kind of corrosion-resistant high-strength stainless steel pipe, including inner tube and outer tube, and the inner tube is uniformly distributed with several ring sleeves on the outside, and is coaxial with ring sleeve;Each ring sleeve is uniformly distributed with several energy-absorbing mechanisms on the surface;Outer tube is fixed on the outer side of inner tube, ring sleeve and energy-absorbing mechanism, and is coaxial with inner tube;The other end of the limiting column is fixedly installed with energy-absorbing box, and the energy-absorbing box is in the outer tube and is fixedly connected with the outer tube;The other end of the limiting column is fixedly connected with the surface of ring sleeve.Under external pressure, it can absorb external pressure, maximize the reduction of pressure points on the inner tube and the indentation around the pressure points, to avoid the inner tube being directly crushed, so that the whole has higher compression resistance.

[0005] The above technical solution is connected by several limiting grooves and energy-absorbing mechanisms when actually implemented, and the energy-absorbing mechanism is arranged on the ring sleeve, since the energy-absorbing mechanism needs to be completely clamped into the limiting groove when installed, the number of limiting grooves is relatively large, once the ring sleeve is partially deformed, the clamping of limiting groove and energy-absorbing mechanism will be affected, and the inner tube and outer tube are assembled relatively inconveniently. SUMMARY

[0006] The utility model aims at providing a kind of corrosion-resistant high-strength composite stainless steel pipe, can conveniently assemble outer tube and inner tube, to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of corrosion-resistant high-strength composite stainless steel pipe, including protective outer tube, the inside of protective outer tube is provided with corrosion-resistant inner tube, and four groups of arc-shaped structure's compression plate are installed between corrosion-resistant inner tube and protective outer tube, the compression plate is provided with compression assembly for protecting corrosion-resistant inner tube, and quick-connecting assembly for connecting compression plate and protective outer tube, the inner wall of protective outer tube is provided with several equidistantly and uniformly distributed link grooves, and the position of link groove is adapted to quick-connecting assembly;

[0008] The quick-connection assembly comprises a movable groove formed in the compression-resistant plate, a movable plate arranged in the movable groove, a socket formed in the side of the movable groove close to the protective outer tube, and a mounting hole formed in the side of the movable groove close to the corrosion-resistant inner tube, a fixing sleeve fixedly arranged in the mounting hole, and a connecting spring arranged in the fixing sleeve, and the end of the connecting spring is fixedly connected with a movable plug rod.

[0009] Preferably, a limiting plate with a diameter larger than that of the fixing sleeve is fixedly arranged at the end of the fixing sleeve away from the movable plug rod.

[0010] Preferably, the movable plug rod is arranged in the fixing sleeve, and the movable plug rod is elastically connected with the fixing sleeve through the connecting spring.

[0011] Preferably, the mounting hole is matched with the outer diameter of the fixing sleeve, the socket is matched with the outer diameter of the movable plug rod, and the connecting spring is stretched to arrange the movable plug rod in the socket.

[0012] Preferably, the depth of the connecting groove decreases from left to right, and the size of the connecting groove is matched with the diameter of the socket.

[0013] Preferably, the compression-resistant assembly comprises a damping rod, the surface of the damping rod is provided with a damping spring, the end of the damping rod is fixedly connected with a rubber head, and the rubber head is fixed to the surface of the corrosion-resistant inner tube.

[0014] Preferably, the compression-resistant assembly and the quick-connection assembly are equidistantly and uniformly distributed on the surface of the compression-resistant plate.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The quick-connection assembly is arranged, the movable plate is arranged in the movable groove to limit and lock the movable plug rod when the compression-resistant plate and the protective outer tube are not installed, the movable plate is pulled out to unlock the movable plug rod when the compression-resistant plate and the corrosion-resistant inner tube are installed, the compression-resistant plate and the corrosion-resistant inner tube are rotated, the movable plug rod is inserted into the deepest part of the connecting groove, and the assembly work is completed, and the whole process is convenient to operate.

[0017] 2. The compression-resistant performance of the protective outer tube and the corrosion-resistant inner tube is improved through the cooperation of the quick-connection assembly, the compression-resistant assembly and the compression-resistant plate. DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the following specific embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0019] Figure 1 The overall structure view of the present application;

[0020] Figure 2 The half cut structure schematic view of the present application;

[0021] Figure 3 The half cut structure schematic view of the present application; Figure 2 The enlarged view of A;

[0022] Figure 4 The half cut structure schematic view of the present application;

[0023] Explanation of reference signs:

[0024] 1, protective outer tube; 2, corrosion-resistant inner tube; 3, compression plate; 4, compression assembly; 401, damping rod; 402, rubber head; 403, damping spring; 5, quick connection assembly; 501, movable plate; 502, movable groove; 503, limiting plate; 504, fixed sleeve; 505, connecting spring; 506, movable plug rod; 507, mounting hole; 508, insertion hole; 6, connection groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] The present application provides a technical solution:

[0027] Please refer to Figures 1 to 4 A corrosion-resistant high-strength composite stainless steel pipe material, comprising a protective outer tube 1, a corrosion-resistant inner tube 2 is arranged inside the protective outer tube 1, and four groups of arc-shaped compression plates 3 are installed between the corrosion-resistant inner tube 2 and the protective outer tube 1, the compression plates 3 are provided with a compression assembly 4 for protecting the corrosion-resistant inner tube 2, and a quick connection assembly 5 for connecting the compression plates 3 and the protective outer tube 1, a plurality of equidistantly and uniformly distributed connection grooves 6 are formed in the inner wall of the protective outer tube 1, and the positions of the connection grooves 6 and the quick connection assembly 5 are matched;

[0028] The quick-connection assembly 5 comprises a movable groove 502 formed in the inside of the pressure-resistant plate 3, a movable plate 501 is arranged in the inside of the movable groove 502, a plug hole 508 is formed in the side of the movable groove 502 close to the protective outer tube 1, a mounting hole 507 is formed in the side of the movable groove 502 close to the corrosion-resistant inner tube 2, a fixing sleeve 504 is fixedly arranged in the inside of the mounting hole 507, a connecting spring 505 is arranged in the inside of the fixing sleeve 504, and a movable plug rod 506 is fixedly connected to the end of the connecting spring 505.

[0029] The end of the fixing sleeve 504 away from the movable plug rod 506 is fixedly provided with a limiting plate 503 with a diameter larger than that of the fixing sleeve 504, the movable plug rod 506 penetrates the inside of the fixing sleeve 504, and the movable plug rod 506 is elastically connected to the fixing sleeve 504 through the connecting spring 505, the outer diameter of the mounting hole 507 is matched with that of the fixing sleeve 504, the outer diameter of the plug hole 508 is matched with that of the movable plug rod 506, the connecting spring 505 is stretched to make the movable plug rod 506 penetrate the inside of the plug hole 508, and the depth of the connecting groove 6 gradually decreases from left to right, and the size of the connecting groove 6 is matched with the diameter of the plug hole 508.

[0030] By adopting the above technical scheme, when the pressure-resistant plate 3 and the protective outer tube 1 are not installed, the movable plate 501 is located in the inside of the movable groove 502 and abuts against the movable plug rod 506, at this time, the movable plug rod 506 is located in the inside of the movable groove 502, the pressure-resistant plate 3 on the corrosion-resistant inner tube 2 is inserted into the inside of the protective outer tube 1, then the movable plate 501 is pulled out, at this time, after losing the external force, the connecting spring 505 can push the movable plug rod 506 to move outward, thereby the movable plug rod 506 is inserted into the inside of the plug hole 508 and penetrates the movable groove 502 and is exposed on the surface of the pressure-resistant plate 3, at this time, if the movable plug rod 506 is not located at the deepest part of the connecting groove 6, the corrosion-resistant inner tube 2 and the protective outer tube 1 are installed by rotating the whole pressure-resistant plate 3 and the corrosion-resistant inner tube 2, gradually inserting the movable plug rod 506 into the deepest part of the connecting groove 6 along the connecting groove 6, and limiting the movable plug rod 506, the installation process needs to pull out the movable plate 501, and then the pressure-resistant plate 3 and the corrosion-resistant inner tube 2 are rotated, so that the installation is convenient.

[0031] Specifically, as shown in Figure 3 The compression-resistant assembly 4 comprises a damping rod 401, a damping spring 403 is arranged on the surface of the damping rod 401, a rubber head 402 is fixedly connected to the end of the damping rod 401, the rubber head 402 is fixed on the surface of the corrosion-resistant inner tube 2, and the compression-resistant assembly 4 and the quick-connection assembly 5 are uniformly distributed on the surface of the pressure-resistant plate 3 at equal distances.

[0032] By adopting the technical scheme, when the protective outer tube 1 is subjected to external extrusion, the external force is first transmitted to the fixed sleeve 504 through the movable insertion rod 506, the movable insertion rod 506 pushes the connecting spring 505 to extrude inward, buffers part of the external force, and transmits the external force to the compression-resistant plate 3 through the fixed sleeve 504, drives the compression-resistant plate 3 to extrude towards the corrosion-resistant inner tube 2, thereby absorbing part of the external force under the action of the damping spring 403 and the damping rod 401, thereby improving the extrusion resistance of the protective outer tube 1 and the corrosion-resistant inner tube 2, and the inner wall of the corrosion-resistant inner tube 2 is coated with a corrosion-resistant coating.

[0033] Working principle: insert the compression-resistant plate 3 on the corrosion-resistant inner tube 2 into the inside of the protective outer tube 1, then pull out the movable plate 501, at this time, after losing the external force, the connecting spring 505 can push the movable insertion rod 506 to move outward, thereby being inserted into the insertion hole 508, passing through the movable slot 502, and being exposed on the surface of the compression-resistant plate 3, at this time, if the movable insertion rod 506 is not located at the deepest part of the connecting groove 6, rotate the entire compression-resistant plate 3 and the corrosion-resistant inner tube 2, gradually make the movable insertion rod 506 inserted into the deepest part of the connecting groove 6 along the connecting groove 6, when the protective outer tube 1 is subjected to external extrusion, the external force is first transmitted to the fixed sleeve 504 through the movable insertion rod 506, the movable insertion rod 506 pushes the connecting spring 505 to extrude inward, buffers part of the external force, and transmits the external force to the compression-resistant plate 3 through the fixed sleeve 504, drives the compression-resistant plate 3 to extrude towards the corrosion-resistant inner tube 2, thereby absorbing part of the external force under the action of the damping spring 403 and the damping rod 401, thereby improving the extrusion resistance of the protective outer tube 1 and the corrosion-resistant inner tube 2, and the inner wall of the corrosion-resistant inner tube 2 is coated with a corrosion-resistant coating.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A corrosion-resistant, high-strength composite stainless steel pipe, comprising a protective outer pipe (1), characterized in that: The protective outer tube (1) is provided with a corrosion-resistant inner tube (2), and four sets of arc-shaped pressure-resistant plates (3) are installed between the corrosion-resistant inner tube (2) and the protective outer tube (1). The pressure-resistant plate (3) is provided with a pressure-resistant component (4) for protecting the corrosion-resistant inner tube (2), and a quick-connect component (5) for connecting the pressure-resistant plate (3) and the protective outer tube (1). The inner wall of the protective outer tube (1) is provided with several equidistant and evenly distributed connecting grooves (6), and the connecting grooves (6) are matched with the positions of the quick-connect components (5). The quick-connect assembly (5) includes a movable groove (502) inside the pressure-resistant plate (3), a movable plate (501) passing through the movable groove (502), an insertion hole (508) being provided on the side of the movable groove (502) near the protective outer tube (1), and an installation hole (507) being provided on the side of the movable groove (502) near the corrosion-resistant inner tube (2). A fixing sleeve (504) is fixedly installed inside the installation hole (507), and a connecting spring (505) is installed inside the fixing sleeve (504). A movable insertion rod (506) is fixedly connected to the end of the connecting spring (505).

2. The corrosion-resistant high-strength composite stainless steel pipe according to claim 1, characterized in that: The fixed sleeve (504) is fixedly provided with a limiting plate (503) with a diameter larger than that of the fixed sleeve (504) at the end away from the movable insert (506).

3. The corrosion-resistant high-strength composite stainless steel pipe according to claim 2, characterized in that: The movable insert (506) passes through the interior of the fixed sleeve (504), and the movable insert (506) is elastically connected to the fixed sleeve (504) through a connecting spring (505).

4. The corrosion-resistant high-strength composite stainless steel pipe according to claim 3, characterized in that: The mounting hole (507) is adapted to the outer diameter of the fixed sleeve (504), the insertion hole (508) is adapted to the outer diameter of the movable insertion rod (506), and the connecting spring (505) extends to allow the movable insertion rod (506) to pass through the interior of the insertion hole (508).

5. The corrosion-resistant high-strength composite stainless steel pipe according to claim 4, characterized in that: The depth of the connecting groove (6) decreases from left to right, and the size of the connecting groove (6) is adapted to the diameter of the socket (508).

6. The corrosion-resistant high-strength composite stainless steel pipe according to claim 1, characterized in that: The anti-compression component (4) includes a damping rod (401), on the surface of which a damping spring (403) is provided, and a rubber head (402) is fixedly connected to the end of the damping rod (401), which is fixed to the surface of the corrosion-resistant inner tube (2).

7. The corrosion-resistant high-strength composite stainless steel pipe according to claim 1, characterized in that: The anti-compression component (4) and the quick-connect component (5) are evenly distributed at equal intervals along the surface of the anti-compression plate (3).

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