Compression-resistant stainless steel pipe fitting

Abstract

The utility model relates to a compression-resistant stainless steel pipe fitting which comprises a pipe fitting body, a supporting pipe, a left filtering sleeve and a right filtering sleeve, the axial direction of the pipe fitting body extends leftwards and rightwards, the interior of the pipe fitting body is hollow, the supporting pipe, the left filtering sleeve and the right filtering sleeve are located in the pipe fitting body, the right side of the left filtering sleeve abuts against the left side of the supporting pipe, and the left side of the right filtering sleeve abuts against the right side of the supporting pipe. The circumferential direction of the supporting pipe abuts against the inner wall of the pipe fitting, the left filtering sleeve is detachably connected with the left side of the pipe fitting, the right filtering sleeve is detachably connected with the right side of the pipe fitting, the supporting pipe is made of glass fiber reinforced plastics, and the left filtering sleeve and the right filtering sleeve are the same in shape and size. By the adoption of the scheme, the rigidity of the pipe fitting and the stability of the overall structure are improved by arranging the supporting pipe on the inner wall of the pipe fitting.

Description

Technical Field

[0001] The utility model relates to a pressure-resistant stainless steel pipe fitting. Background Art

[0002] Stainless steel is primarily characterized by its stainless and corrosion-resistant properties, with a chromium content of at least 10.5% and a maximum carbon content of no more than 1.2%. In modern industry, construction, energy, chemical engineering, and municipal engineering, piping systems serve as crucial infrastructure for transporting gases, liquids, or solid particles. Their structural safety and operational stability are crucial. Stainless steel pipe fittings, due to their excellent corrosion resistance, good mechanical properties, and long service life, are widely used in various mid- to high-end piping systems.

[0003] However, in actual applications, stainless steel pipe fittings often need to withstand complex loads from the external environment, such as soil pressure, traffic loads, foundation settlement, water pressure shock, and natural disasters such as earthquakes. Although traditional stainless steel pipe fittings have a certain pressure-bearing capacity, they may still experience structural failure problems such as local buckling, instability, deformation, and even rupture under extreme conditions.

[0004] Therefore, how to improve the compressive strength of stainless steel pipe fittings has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a pressure-resistant stainless steel pipe fitting that improves the rigidity and overall structural stability of the pipe fitting by arranging a support pipe on the inner wall of the pipe fitting.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a pipe fitting, which extends axially to the left and right and is hollow inside, and also includes a support tube, a left filter sleeve and a right filter sleeve located inside the pipe fitting, the right side of the left filter sleeve is abutted against the left side of the support tube, the left side of the right filter sleeve is abutted against the right side of the support tube, the circumference of the support tube is abutted against the inner wall of the pipe fitting, the left filter sleeve is detachably connected to the left side of the pipe fitting, the right filter sleeve is detachably connected to the right side of the pipe fitting, the support tube is made of glass fiber reinforced plastic, and the left filter sleeve and the right filter sleeve have the same shape and size.

[0007] The utility model is further configured to include a first sealing ring located between the right filter sleeve and the pipe fitting, and a second sealing ring located between the left filter sleeve and the pipe fitting.

[0008] The utility model is further configured as follows: a plurality of positioning pieces are protrudingly provided on the left side of the right filter sleeve along the circumferential direction, and the support tube is provided with positioning grooves for the positioning pieces to be installed.

[0009] The utility model is further configured such that each of the positioning members is in the form of a hemispherical body with its opening facing right.

[0010] The utility model is further configured as follows: the right filter sleeve is provided with a plurality of positioning plugs at intervals in the circumferential direction, and the pipe is provided with a positioning slot corresponding to each positioning plug.

[0011] The utility model is further configured as follows: the pipe fitting is provided with a mounting groove corresponding to the right filter sleeve, the right filter sleeve is provided with a plurality of connectors for inserting the pipe fitting, and each connector is buckled and connected with the pipe fitting.

[0012] The utility model is further configured as follows: each of the connecting parts is made of a material that is easy to deform and includes an insertion section and a limiting section with one end abutting against the pipe fitting. Each limiting section is arranged at an angle, and the pipe fitting is provided with an insertion groove corresponding to the insertion section and a matching groove for the limiting section to pass through after deformation.

[0013] By adopting the above technical solution, 1. Since the right side of the left filter sleeve is against the left side of the support tube located in the pipe fitting and the left side of the right filter sleeve is against the right side of the support tube, the support tube can be stably located in the pipe fitting without the action of external force and is restricted by the detachable connection between the left filter sleeve, the right filter sleeve and the pipeline, and cannot produce axial movement. At this time, the liquid required to be transported by the pipe fitting will enter the support tube; 2. Due to the existence of the support tube, the external pressure can be shared, so that the main load-bearing pipe wall does not directly bear all the pressure, thereby reducing the risk of deformation or failure, and improving the overall pressure resistance of the stainless steel pipe fitting; 3. Since the support tube is made of glass fiber reinforced plastic, it is not affected by most chemical substances, including Acid, alkali and salt water, etc., so it is very suitable for use in harsh environments or occasions where contact with corrosive media, FRP material has excellent fatigue resistance, can withstand repeated loading without being easily damaged, thereby further improving the compressive performance of stainless steel pipe fittings; 4. Due to the presence of the left filter sleeve and the right filter sleeve, the fluid entering the pipe fitting will be restricted by the left and right filter sleeves, so that impurities can be blocked and cannot enter the interior of the support tube, and when it is necessary to clean the impurities attached to the left filter sleeve and the right filter sleeve, the left and right filter sleeves can be separated to clean and replace the left and right filter sleeves, and the support tube can be removed from the pipe fitting after removing the left filter sleeve or the right filter sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is an assembly drawing of a specific embodiment of the utility model;

[0016] Figure 2 An exploded view of a specific embodiment of the present utility model;

[0017] Figure 3 It is a cross-sectional view of the present invention from right to left;

[0018] Figure 4 This is a cross-sectional view of the utility model from the front to the back;

[0019] Figure 5 for Figure 3 A magnified view of middle A;

[0020] Figure 6 for Figure 4 Magnified view of B.

[0021] In the figure: 1-pipe fitting, 11-positioning slot, 12-installation slot, 13-insertion slot, 14-matching slot;

[0022] 2-support tube, 21-positioning groove;

[0023] 3-Left filter sleeve;

[0024] 4-right filter sleeve, 41-positioning piece, 42-positioning plug, 43-connecting piece, 431-insertion section, 432-limiting section;

[0025] 5-first sealing ring;

[0026] 6-Second sealing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1-6As shown, the utility model discloses a pressure-resistant stainless steel pipe fitting, including a pipe fitting 1, wherein the axial direction of the pipe fitting 1 extends left and right and the interior is hollow, and liquid flows through the interior of the pipe fitting 1 to realize the liquid conveying function of the stainless steel pipe fitting 1 (this is the prior art and will not be described in detail here), and further includes a support tube 2, a left filter sleeve 3 and a right filter sleeve 4 located in the pipe fitting 1, the right side of the left filter sleeve 3 abuts against the left side of the support tube 2, the left side of the right filter sleeve 4 abuts against the right side of the support tube 2, the circumference of the support tube 2 abuts against the inner wall of the pipe fitting 1, and the left filter sleeve 3 abuts against the left side of the pipe fitting 1. The right filter sleeve 4 is detachably connected to the right side of the pipe fitting 1 by means of bolts, snaps, etc. The support tube 2 is made of glass fiber reinforced plastic. The left filter sleeve 3 and the right filter sleeve 4 have the same shape and size. 1. Since the right side of the left filter sleeve 3 is against the left side of the support tube 2 located in the pipe fitting 1 and the left side of the right filter sleeve 4 is against the right side of the support tube 2, the support tube 2 can be stably located in the pipe fitting 1 without any external force due to the restriction of the detachable connection between the left filter sleeve 3, the right filter sleeve 4 and the pipeline. It cannot produce axial movement. 1. The liquid that pipe fitting 1 needs to transport will enter support pipe 2; 2. Due to the existence of support pipe 2, it can share the external pressure, so that the main load-bearing pipe wall does not directly bear all the pressure, thereby reducing the risk of deformation or failure, and improving the overall compressive performance of stainless steel pipe fitting 1; 3. Since support pipe 2 is made of glass fiber reinforced plastic, it is not affected by most chemical substances, including acid, alkali and salt water, so it is very suitable for use in harsh environments or places where contact with corrosive media is required. FRP material has excellent fatigue resistance and can withstand repeated loading without being easily damaged. The advantages further improve the pressure resistance of the stainless steel pipe fitting 1; 4. Due to the presence of the left filter sleeve 3 and the right filter sleeve 4, the fluid entering the pipe fitting 1 will be restricted by the left and right filter sleeves 4, so that impurities can be blocked and cannot enter the interior of the support tube 2. When it is necessary to clean the impurities attached to the left filter sleeve 3 and the right filter sleeve 4, the left and right filter sleeves 4 can be cleaned and replaced by separating the left filter sleeve 3 and the right filter sleeve 4, and the support tube 2 can be taken out of the pipe fitting 1 after removing the left filter sleeve 3 or the right filter sleeve 4.

[0029] Among them, it also includes a first sealing ring 5 located between the right filter sleeve 4 and the pipe fitting 1 and a second sealing ring 6 located between the left filter sleeve 3 and the pipe fitting 1. Due to the presence of the first sealing ring 5 and the second sealing ring 6, the liquid that enters the pipe fitting 1 and flows into the support tube 2 will not enter between the left filter sleeve 3 and the pipe fitting 1, nor will it enter between the right filter sleeve 4 and the pipe fitting 1, thereby preventing the liquid flowing through the support tube 2 from leaking.

[0030] Among them, a plurality of positioning members 41 are protruding along the circumferential direction on the left side of the right filter sleeve 4, and the support tube 2 is provided with a positioning groove 21 for each positioning member 41 to be installed. After the right filter sleeve 4 is installed into the pipe fitting 1, the positioning members 41 will respectively enter the positioning groove 21 of the support tube 2, and then the detachable connection between the right filter sleeve 4 and the pipe fitting 1 is completed. At this time, since the position of the right filter sleeve 4 is fixed, it cannot rotate compared to the pipe fitting 1. At the same time, since the right filter sleeve 4 cannot rotate relatively, the support tube 2 connected thereto cannot rotate, so that the support tube 2 can be more stably located in the pipe fitting 1.

[0031] Preferably, each of the positioning members 41 is arranged in a hemispherical shape with its opening facing right. Since each of the positioning members 41 is arranged in a hemispherical shape, when the right filter sleeve 4 is installed into the pipe 1, the left side of each positioning member 41 first enters each positioning groove 21, so that it can be aligned with the corresponding positioning groove 21 more smoothly and conveniently, so that each positioning member 41 enters the positioning groove 21.

[0032] Among them, the right filter sleeve 4 is provided with a plurality of positioning blocks 42 at circumferential intervals, and the pipe fitting 1 is provided with a positioning slot 11 corresponding to each positioning block 42. When each positioning piece 41 of the right filter sleeve 4 falls into the positioning groove 21 of the support tube 2 to confirm the relative positions of the two, the positioning blocks 42 on the right filter sleeve 4 will respectively enter the corresponding positioning slot 11, thereby realizing the determination of the relative position of the right filter sleeve 4 and the pipe fitting 1, thereby facilitating the fixation of the right filter sleeve 4 and the pipe fitting 1.

[0033] Among them, the pipe fitting 1 is provided with a mounting groove 12 corresponding to the right filter sleeve 4, and the right filter sleeve 4 is provided with a plurality of connectors 43 for inserting the pipe fitting 1, and each connector 43 is snap-fitted and connected with the pipe fitting 1. After the positioning plugs 42 are aligned with the positioning slots 11, as the right filter sleeve 4 enters the pipe fitting 1, the connector 43 on the right filter sleeve 4 will gradually approach the pipe fitting 1 and then snap-fitted and connected with the pipe fitting 1, thereby achieving fixation between the right filter sleeve 4 and the pipe fitting 1. At the same time, since the connector 43 is snap-fitted and connected with the pipe fitting 1, no bolts or welding are required, which facilitates quick installation and disassembly.

[0034] Among them, each of the connecting parts 43 is made of a deformable material such as rubber and includes an insertion section 431 and a limiting section 432 with one end abutting against the pipe 1. Each limiting section 432 is arranged obliquely. The pipe 1 is provided with an insertion groove 13 corresponding to the insertion section 431 and a matching groove 14 for the limiting section 432 to pass through after deformation. The inclined limiting section 432 is elastically deformed after insertion and enters the matching groove 14. After passing through the matching groove 14, it automatically resets. At this time, one end of the limiting section 432 abuts against the pipe 1 to form Self-locking structure, in the absence of external force, the right filter sleeve 4 cannot be separated from the pipe 1 due to the existence of each limit section 432. When the right filter sleeve 4 needs to be removed for cleaning, at this time, due to the deformation ability of the material, only a certain external force needs to be applied during disassembly to be able to bend the limit section 432 so that it can pass through the matching groove 14 and then separate from it. At the same time, the insertion section 431 will be separated from the insertion groove 13, so that the right filter sleeve 4 can be removed. In summary, the setting of each connecting member 43 improves the connection reliability.

[0035] Since the left filter sleeve 3 and the right filter sleeve 4 have the same shape and size, their cooperation with the left side of the support tube 2 and their connection with the left side of the pipe fitting 1 will not be described in detail here.

[0036] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compression-resistant stainless steel pipe, comprising a pipe, wherein the pipe extends axially leftward and rightward and is hollow inside, and is characterized in that: It also includes a support tube, a left filter sleeve and a right filter sleeve located in the pipe fitting, the right side of the left filter sleeve abuts against the left side of the support tube, the left side of the right filter sleeve abuts against the right side of the support tube, the circumference of the support tube abuts against the inner wall of the pipe fitting, the left filter sleeve is detachably connected to the left side of the pipe fitting, the right filter sleeve is detachably connected to the right side of the pipe fitting, the support tube is made of glass fiber reinforced plastic, and the left filter sleeve and the right filter sleeve have the same shape and size.

2. The pressure-resistant stainless steel pipe according to claim 1, characterized in that: The invention also includes a first sealing ring located between the right filter sleeve and the pipe member, and a second sealing ring located between the left filter sleeve and the pipe member.

3. The pressure-resistant stainless steel pipe according to claim 2, characterized in that: A plurality of positioning pieces are protrudingly provided on the left side of the right filter sleeve along the circumferential direction, and the support tube is provided with positioning grooves for the positioning pieces to be installed.

4. The pressure-resistant stainless steel pipe according to claim 3, characterized in that: Each of the positioning members is arranged in a hemispherical shape with its opening facing right.

5. The pressure-resistant stainless steel pipe fitting according to claim 2 or 3, characterized in that: The right filter sleeve is provided with a plurality of positioning plugs at intervals in the circumferential direction, and the pipe is provided with a positioning slot corresponding to each positioning plug.

6. The pressure-resistant stainless steel pipe fitting according to claim 5, characterized in that: The pipe fitting is provided with a mounting groove corresponding to the right filter sleeve, and the right filter sleeve is provided with a plurality of connectors for inserting the pipe fitting, and each connector is buckled and connected with the pipe fitting.

7. The pressure-resistant stainless steel pipe according to claim 6, characterized in that: Each of the connecting parts is made of a material that is easy to deform and includes an insertion section and a limiting section with one end abutting against the pipe fitting. Each limiting section is arranged at an angle, and the pipe fitting is provided with an insertion groove corresponding to the insertion section and a matching groove for the limiting section to pass through after deformation.

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