Stainless steel pipe facilitating butt joint of steel pipes

Abstract

The utility model discloses a stainless steel pipe convenient for butt joint of steel pipes, which belongs to the technical field of stainless steel pipes and comprises two stainless steel pipe bodies, and connecting rings are sleeved at the outer ends of the two stainless steel pipe bodies. The right end of the connecting ring located on the right side is fixedly connected with two vertically-symmetrical positioning rods, the right end of the connecting ring located on the right side is provided with two front-back-symmetrical positioning grooves, the left end of the connecting ring located on the left side is fixedly connected with two front-back-symmetrical positioning rods, the left end of the connecting ring located on the left side is provided with two vertically-symmetrical positioning rods, and the positioning rods are located in the positioning grooves. According to the scheme, through positioning and clamping of the positioning rods and the positioning grooves, the two stainless steel pipe bodies are rapidly spliced and aligned, time waste is reduced, butt joint is more convenient, meanwhile, the limiting mechanisms are matched, the positioning rods and the positioning grooves are kept fixed, butt joint of the two stainless steel pipe bodies is rapid and convenient, and mutual stability can be kept; and the butt joint effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, and more specifically to a stainless steel pipe which is convenient for butting the steel pipes. Background Art

[0002] Stainless steel pipe is a hollow long cylindrical steel. It is used as a pipeline for conveying fluids. It is mainly used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components.

[0003] China Patent Authorization Announcement No.: CN209557813U, provides a reinforced stainless steel pipe, which accommodates deformation through an annular cavity. At the same time, due to the effect of the elastic ring, it will also absorb part of the deformation of the outer tube, thereby improving the strength of the tube body while improving the force bearing capacity of the stainless steel pipe, thereby extending the service life of the stainless steel pipe. The overall structure is simple, easy to manufacture, reduces costs, and is conducive to promotion and application.

[0004] Although the above patent enhances the strength and force-bearing capacity of the stainless steel pipe by means of the double-layer structure design of the inner pipe and the outer pipe in combination with the elastic sleeve, the stainless steel pipe often needs to be docked with other stainless steel pipes during use, and the outer end of the outer pipe lacks a corresponding docking structure, so that the two stainless steel pipes need to be adjusted and aligned when docked, which is troublesome, inconvenient, time-consuming, and has poor use effect. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a stainless steel pipe that is easy to connect with each other. The present invention uses the positioning rod and the positioning groove to position and engage the two stainless steel pipe bodies so that they can be quickly spliced ​​and aligned, thereby reducing the waste of time and making the connection more convenient. At the same time, the positioning rod and the positioning groove are cooperated with the limiting mechanism to keep them fixed, so that the connection of the two stainless steel pipe bodies is not only quick and convenient, but also can keep each other stable, thereby enhancing the connection effect.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A stainless steel pipe for easy connection of steel pipes, comprising two stainless steel pipe bodies, the outer ends of the two stainless steel pipe bodies are sleeved with connecting rings, the right end of the connecting ring located on the right side is fixedly connected to two vertically symmetrical positioning rods, and its right end is chiseled with two front-to-back symmetrical positioning grooves, the left end of the connecting ring located on the left side is fixedly connected to two front-to-back symmetrical positioning rods, and its left end is chiseled with two vertically symmetrical positioning rods, the positioning rods are located in the positioning grooves, two connecting through tubes are embedded and installed at the upper and lower ends of the positioning rods, and a limiting mechanism is provided between the connecting through tubes and the inner wall of the positioning grooves, the scheme enables the two stainless steel pipe bodies to be quickly spliced ​​and aligned through the positioning engagement of the positioning rods and the positioning grooves, reduces time waste, and makes the connection more convenient, and at the same time cooperates with the limiting mechanism to keep the positioning rods and the positioning grooves fixed, so that the connection of the two stainless steel pipe bodies is not only fast and convenient, but also can maintain stability with each other, thereby enhancing the connection effect.

[0010] Furthermore, the limiting mechanism includes a movable plate located inside the connecting tube, the ends of the two movable plates located on the right side that are away from each other are fixedly connected to a first limiting block, and the ends of the two movable plates located on the left side that are away from each other are fixedly connected to a second limiting block, the inner walls of the positioning grooves are respectively provided with a pair of first limiting grooves and a second limiting groove, the first limiting block matches the first limiting groove, and the second limiting block matches the second limiting groove, the ends of the two pairs of movable plates that are close to each other are fixedly connected to movable tubes, the inner wall of the connecting tube is fixedly connected to a round rod, and The inner wall of the movable tube is slidably connected to the outer end of the round rod, and a tension spring is fixedly connected between the round rod and the movable plate. The limiting mechanism pushes the movable plate to move upward stably through the elastic action of the tension spring, so that it drives the first limiting block and the second limiting block to extend into the first limiting groove and the second limiting groove respectively for limiting and fixing, so that the positioning rod and the positioning groove remain stable, and stable docking of the two stainless steel pipe bodies is achieved. The size of the second limiting block is larger than the first limiting block. When the second limiting block and the first limiting block are extended and engaged, they do not interfere with each other, making the engagement and fixation more convenient and quick.

[0011] Furthermore, the outer end of the positioning rod is provided with a protective sleeve, and the inner wall of the positioning groove is provided with a sealing plug in close contact therewith. By providing the protective sleeve and the sealing plug, the positioning rod and the positioning groove are sealed and protected before being put into use, thereby reducing the possibility of damage.

[0012] Furthermore, two spherical grooves are drilled on the outer end of the movable plate, and balls are rotatably connected inside the two spherical grooves. The outer ends of the two balls are in contact with the inner wall of the connecting cylinder. Through the setting of the balls, the movement of the movable plate inside the connecting cylinder is smoother and more convenient, reducing the influence of friction.

[0013] Furthermore, two short rods are fixedly connected to the inner wall of the movable tube, and the ends of the two short rods that are close to each other are fixedly connected to sliders. Two sliding grooves are drilled at the outer end of the round rod. The sliders are located in the sliding grooves and are slidably connected thereto. Through the mutual cooperation of the short rods, the sliders and the sliding grooves, assistance is provided during the movement of the movable tube, so that the movable tube maintains stable movement and is not easily deviated.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution uses the positioning rod and the positioning groove to quickly align the two stainless steel pipe bodies, reducing time waste and making docking more convenient. At the same time, the limiting mechanism is used to keep the positioning rod and the positioning groove fixed, so that the docking of the two stainless steel pipe bodies is not only fast and convenient, but also can maintain mutual stability, thereby enhancing the docking effect.

[0017] (2) The limiting mechanism includes a movable plate located inside the connecting tube, the ends of the two movable plates located on the right side that are away from each other are fixedly connected to a first limiting block, the ends of the two movable plates located on the left side that are away from each other are fixedly connected to a second limiting block, the inner wall of the positioning groove is respectively provided with a pair of first limiting grooves and a second limiting groove, the first limiting block matches the first limiting groove, and the second limiting block matches the second limiting groove, the ends of the two pairs of movable plates that are close to each other are fixedly connected to a movable tube, the inner wall of the connecting tube is fixedly connected to a round rod, and the inner wall of the movable tube is connected to the inner wall of the connecting tube. The outer end of the round rod is slidably connected, and a tension spring is fixedly connected between the round rod and the movable plate. The limiting mechanism pushes the movable plate to move upward stably through the elastic action of the tension spring, so that it drives the first limiting block and the second limiting block to extend into the first limiting groove and the second limiting groove respectively for limiting and fixing, so that the positioning rod and the positioning groove remain stable, and stable docking of the two stainless steel pipe bodies is achieved. The size of the second limiting block is larger than the first limiting block. When the second limiting block and the first limiting block are extended and engaged, they do not interfere with each other, making the engagement and fixation more convenient and quick.

[0018] (3) A protective sleeve is provided on the outer end of the positioning rod, and a sealing plug is provided on the inner wall of the positioning groove in close contact with the positioning rod. By providing the protective sleeve and the sealing plug, the positioning rod and the positioning groove are sealed and protected before being put into use, thereby reducing the possibility of damage.

[0019] (4) Two spherical grooves are bored at the outer end of the movable plate, and balls are rotatably connected inside the two spherical grooves. The outer ends of the two balls are in contact with the inner wall of the connecting tube. Through the setting of the balls, the movement of the movable plate inside the connecting tube becomes smoother and more convenient, reducing the influence of friction.

[0020] (5) Two short rods are fixedly connected to the inner wall of the movable tube, and the ends of the two short rods that are close to each other are fixedly connected to sliders. Two sliding grooves are cut at the outer end of the round rod. The sliders are located in the sliding grooves and are slidably connected to the sliding grooves. Through the mutual cooperation of the short rods, the sliders and the sliding grooves, assistance is provided during the movement of the movable tube, so that the movable tube maintains stable movement and is not easily deviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is an exploded view of the utility model;

[0023] Figure 3 It is a schematic diagram of the connection structure of the positioning rod and the positioning groove in the utility model;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the limiting mechanism in the utility model;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0026] Description of the numbers in the figure:

[0027] 1. Stainless steel pipe body; 2. Connecting ring; 3. Positioning rod; 301. Protective sleeve; 4. Positioning groove; 401. Sealing plug; 5. Connecting tube; 6. Moving plate; 601. Ball; 7. Movable tube; 701. Short rod; 702. Sliding block; 703. Sliding groove; 8. Round rod; 9. Tension spring; 10. First limiting block; 11. First limiting groove; 12. Second limiting block; 13. Second limiting groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Example:

[0032] See also Figure 1-5 The two ends of the two stainless steel pipes are fixedly connected to each other with two symmetrical positioning rods 3, and two symmetrical positioning grooves 4 are cut out at the right end. The left end of the connecting ring 2 on the left side is fixedly connected to two symmetrical positioning rods 3 fore and aft, and two symmetrical positioning grooves 4 are cut out at the left end. The positioning rod 3 is located in the positioning groove 4. Two connecting tubes 5 are embedded and installed at the upper and lower ends of the positioning rod 3, and a limiting mechanism is provided between the connecting tube 5 and the inner wall of the positioning groove 4. In this scheme, the two stainless steel pipe bodies 1 are quickly spliced ​​and aligned through the positioning rod 3 and the positioning groove 4, which reduces the waste of time and makes the docking more convenient. At the same time, the limiting mechanism is used to keep the positioning rod 3 and the positioning groove 4 fixed, so that the docking of the two stainless steel pipe bodies 1 is not only fast and convenient, but also can keep each other stable, thereby enhancing the docking effect.

[0033] See also Figure 2-5The limiting mechanism includes a movable plate 6 located inside the connecting tube 5, the ends of the two movable plates 6 located on the right side that are away from each other are fixedly connected to the first limiting block 10, and the ends of the two movable plates 6 located on the left side that are away from each other are fixedly connected to the second limiting block 12. The inner wall of the positioning groove 4 is respectively opened with a pair of first limiting grooves 11 and a second limiting groove 13, the first limiting block 10 matches the first limiting groove 11, and the second limiting block 12 matches the second limiting groove 13. The ends of the two pairs of movable plates 6 that are close to each other are fixedly connected to the movable tube 7, the inner wall of the connecting tube 5 is fixedly connected to the round rod 8, and the inner wall of the movable tube 7 is connected to the The outer end of the round rod 8 is slidably connected, and a tension spring 9 is fixedly connected between the round rod 8 and the movable plate 6. The limiting mechanism pushes the movable plate 6 to move upward stably through the elastic action of the tension spring 9, so that it drives the first limiting block 10 and the second limiting block 12 to extend into the first limiting groove 11 and the second limiting groove 13 respectively, and performs limiting fixation, so that the positioning rod 3 and the positioning groove 4 remain stable, and the stable docking of the two stainless steel pipe bodies 1 is achieved. The size of the second limiting block 12 is larger than the first limiting block 10. When the second limiting block 12 and the first limiting block 10 are extended and engaged, they do not interfere with each other, making the engagement and fixation more convenient and quick.

[0034] See also Figure 2 The outer end of the positioning rod 3 is provided with a protective sleeve 301, and the inner wall of the positioning groove 4 is provided with a sealing plug 401 in close contact therewith. Through the setting of the protective sleeve 301 and the sealing plug 401, the positioning rod 3 and the positioning groove 4 are sealed and protected before being put into use, thereby reducing the possibility of damage.

[0035] See also Figure 4 Two spherical grooves are drilled at the outer end of the movable plate 6, and the inside of the two spherical grooves are rotatably connected with balls 601. The outer ends of the two balls 601 are in contact with the inner wall of the connecting tube 5. Through the setting of the balls 601, the movement of the movable plate 6 inside the connecting tube 5 is smoother and more convenient, reducing the influence of friction.

[0036] See also Figure 5 Two short rods 701 are fixedly connected to the inner wall of the movable tube 7, and the ends of the two short rods 701 that are close to each other are fixedly connected to a slider 702. Two sliding grooves 703 are cut on the outer end of the round rod 8. The slider 702 is located in the sliding groove 703 and is slidably connected thereto. Through the mutual cooperation of the short rods 701, the slider 702 and the sliding groove 703, assistance is provided during the movement of the movable tube 7, so that it maintains stable movement and is not prone to deviation.

[0037] In the utility model, the two stainless steel pipe bodies 1 are aligned and begin to be spliced ​​together during the process of the positioning rod 3 extending into the positioning groove 4, and as the positioning rod 3 extends, the second limit block 12 and the first limit block 10 are squeezed by the internal space of the positioning groove 4, and move toward the inside of the connecting tube 5, squeezing the tension spring 9, until the positioning rod 3 is completely extended into the positioning groove 4, and the second limit block 12 and the first limit block 10 respectively correspond to the second limit groove 13 and the first limit groove 11, at this time, under the elastic reset action of the tension spring 9, the movable tube 7 is pushed to move upward along the round rod 8, so that it drives the movable plate 6 to move upward, and pushes the second limit block 12 and the first limit block 10 to extend into the second limit groove 13 and the first limit groove 11 respectively, for limiting and fixing, so that the two stainless steel pipe bodies 1 can not only be quickly and conveniently docked, but also remain stable, thereby enhancing the docking effect.

[0038] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A stainless steel pipe for facilitating butt jointing of steel pipes, comprising two stainless steel pipe bodies (1), characterized in that: The outer ends of the two stainless steel pipe bodies (1) are both sleeved with connecting rings (2); the right end of the connecting ring (2) located on the right side is fixedly connected to two vertically symmetrical positioning rods (3), and its right end is chiseled with two front-to-back symmetrical positioning grooves (4); the left end of the connecting ring (2) located on the left side is fixedly connected to two front-to-back symmetrical positioning rods (3), and its left end is chiseled with two vertically symmetrical positioning rods (3); the positioning rods (3) are located in the positioning grooves (4); two connecting tubes (5) are embedded and installed at the upper and lower ends of the positioning rods (3), and a limiting mechanism is provided between the connecting tubes (5) and the inner wall of the positioning groove (4).

2. The stainless steel pipe for facilitating butt jointing of steel pipes according to claim 1, characterized in that: The limiting mechanism comprises a movable plate (6) located inside the connecting tube (5); the ends of the two movable plates (6) located on the right side that are away from each other are fixedly connected to a first limiting block (10); the ends of the two movable plates (6) located on the left side that are away from each other are fixedly connected to a second limiting block (12); the inner wall of the positioning groove (4) is respectively provided with a pair of first limiting grooves (11) and a second limiting groove (13); the first limiting block (10) matches the first limiting groove (11), and the second limiting block (12) matches the second limiting groove (13); the ends of the two pairs of movable plates (6) that are close to each other are fixedly connected to a movable tube (7); the inner wall of the connecting tube (5) is fixedly connected to a round rod (8), and the inner wall of the movable tube (7) is slidably connected to the outer end of the round rod (8); a tension spring (9) is fixedly connected between the round rod (8) and the movable plate (6).

3. The stainless steel pipe for facilitating butt jointing of steel pipes according to claim 1, characterized in that: The outer end of the positioning rod (3) is provided with a protective sleeve (301), and the inner wall of the positioning groove (4) is provided with a sealing plug (401) in close contact therewith.

4. The stainless steel pipe for facilitating butt jointing of steel pipes according to claim 2, characterized in that: Two spherical grooves are bored at the outer end of the movable plate (6), and balls (601) are rotatably connected inside the two spherical grooves, and the outer ends of the two balls (601) are in contact with the inner wall of the connecting cylinder (5).

5. The stainless steel pipe for facilitating butt jointing of steel pipes according to claim 2, characterized in that: Two short rods (701) are fixedly connected to the inner wall of the movable tube (7), and the adjacent ends of the two short rods (701) are fixedly connected to a slider (702). Two sliding grooves (703) are cut on the outer end of the round rod (8), and the slider (702) is located in the sliding groove (703) and is slidably connected thereto.

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