Inner hole welded pipe plate welding joint structure

Abstract

The utility model relates to the field of welding joint structures, and discloses an inner hole welded pipe plate welding joint structure which comprises a limiting sleeve, a sliding plate is fixedly connected to the bottom side of the limiting sleeve, a first connecting pipe is connected into the sliding plate in a sliding mode, a second connecting pipe is connected to the bottom side of the first connecting pipe in a sliding mode, and the first connecting pipe and the second connecting pipe are connected in a sliding mode. A fixing plate is slidably connected to the outer wall of the second connecting pipe, pipe plates are arranged on the outer wall of the first connecting pipe and the outer wall of the second connecting pipe, a steel pipe is arranged on the inner wall of the limiting sleeve and located on the top side of the sliding plate, a plurality of sliding grooves are formed in the outer wall of the first connecting pipe, and a plurality of sliding blocks are fixedly connected to the inner wall of the sliding plate and located in the sliding grooves. According to the utility model, the tube plate and the steel tube can be quickly and simply connected and fixed, and the time required for installation is greatly reduced, so that the effect of quickly completing the installation is achieved, the time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of welding joint structures, in particular to an internal hole welded tube sheet welding joint structure. Background Technique

[0002] With the progress of welding technology, a variety of new welding methods have emerged, such as internal hole welding technology. This technology is particularly suitable for the manufacture of tube sheet welding joints. The processing of welding joints is crucial for the success of internal hole welding. It is necessary to precisely control the size and position of the joints. The design of welding joints needs to consider multiple factors such as material selection, groove shape, welding parameters, etc.

[0003] Currently, most of the internal hole welded tube sheet welding joint structures require a complex installation process during installation, which affects the installation, slows down the installation progress, and thus requires a large amount of time for installation. In response to this technical problem, this application proposes an internal hole welded tube sheet welding joint structure. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose an internal hole welded tube sheet welding joint structure, aiming to solve the problem that the internal hole welded tube sheet welding joint requires a long time during installation.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The internal hole welded tube sheet welding joint structure includes a limit sleeve. The bottom side of the limit sleeve is fixedly connected with a sliding plate. A connecting pipe one is slidably connected inside the sliding plate. The bottom side of the connecting pipe one is slidably connected with a connecting pipe two. The outer wall of the connecting pipe two is slidably connected with a fixing plate. A tube sheet is arranged on the outer walls of the connecting pipe one and the connecting pipe two. A steel pipe is arranged on the inner wall of the limit sleeve, and the steel pipe is located above the sliding plate.

[0007] Further, a plurality of sliding grooves are arranged on the outer wall of the connecting pipe one, and a plurality of sliding blocks are fixedly connected to the inner wall of the sliding plate. The sliding blocks are located inside the sliding grooves.

[0008] Further, a ball clamping groove is arranged on the front side of the connecting pipe one, and a clamping ball is fixedly connected to the front side of the sliding plate.

[0009] Further, buckles are fixedly connected to the bottom ends of the outer walls of the four sides of the connecting pipe two, and a plurality of buckle grooves are opened on the bottom sides of the four sides of the fixing plate.

[0010] Further, the specifications of the buckles and the buckle grooves correspond to each other.

[0011] Further, a socket is fixedly connected to the top side of the connecting pipe two, and limiting plates are fixedly connected to the outer walls of the four sides of the socket. Slots are opened on the bottom sides of the four sides of the inner wall of the connecting pipe one.

[0012] Further, the specifications of the slot and the limiting plate correspond to each other.

[0013] Further, a welding ring is arranged on the top side of the outer wall of the fixing plate, and the welding ring is connected to the tube sheet by welding.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the connection and fixation of the tube sheet and the steel pipe can be realized quickly and simply, greatly reducing the time required for installation, so as to achieve the effect of rapid installation, thus saving time and improving work efficiency.

[0016] 2. In the utility model, accurate positioning can be realized when the steel pipe is connected to the tube sheet, so that rapid and accurate installation can be carried out, further reducing the errors generated during installation, improving the accuracy during installation, making the connection between the tube sheet and the steel pipe more firm, increasing the service life and reducing the cost. Description of the Drawings

[0017] Figure 1 is a perspective view of the internal hole welding tube sheet welding joint structure proposed by the utility model;

[0018] Figure 2 is a front side structural schematic diagram of the tube sheet of the internal hole welding tube sheet welding joint structure proposed by the utility model;

[0019] Figure 3 is a rear side structural schematic diagram of the tube sheet of the internal hole welding tube sheet welding joint structure proposed by the utility model;

[0020] Figure 4 is a structural schematic diagram of the fixing plate of the internal hole welding tube sheet welding joint structure proposed by the utility model;

[0021] Figure 5 is a structural schematic diagram of the first connecting pipe of the internal hole welding tube sheet welding joint structure proposed by the utility model;

[0022] Figure 6 is a structural schematic diagram of the sliding plate of the internal hole welding tube sheet welding joint structure proposed by the utility model.

[0023] Legend Explanation:

[0024] 1. Limiting sleeve; 2. Steel pipe; 3. Tube sheet; 4. Snap fastener; 5. Fixing plate; 6. Welding ring; 7. First connecting pipe; 8. Chute; 9. Insert sleeve; 10. Second connecting pipe; 11. Limiting plate; 12. Ball; 13. Snap fastener groove; 14. Sliding plate; 15. Ball groove; 16. Slot; 17. Slide block. Specific Embodiment

[0025] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] Referring to Figures 1 - 3 , an embodiment provided by the present invention: an internal hole welded tube sheet welding joint structure, including a limit sleeve 1. A slide plate 14 is fixedly connected to the bottom side of the limit sleeve 1. A first connecting pipe 7 is slidably connected inside the slide plate 14. A second connecting pipe 10 is slidably connected to the bottom side of the first connecting pipe 7. A fixing plate 5 is slidably connected to the outer wall of the second connecting pipe 10. Tube sheets 3 are arranged on the outer walls of the first connecting pipe 7 and the second connecting pipe 10. A steel pipe 2 is arranged on the inner wall of the limit sleeve 1, and the steel pipe 2 is located above the slide plate 14.

[0027] Specifically, insert the second connecting pipe 10 into the holes opened inside the tube sheet 3, and then insert the first connecting pipe 7 into the holes opened in the tube sheet 3 so that the first connecting pipe 7 is connected to the second connecting pipe 10. Then, through internal hole welding, weld the first connecting pipe 7 and the second connecting pipe 10 through the inside of the second connecting pipe 10, thereby fixing the tube sheet 3 between the fixing plate 5 and the slide plate 14. Then slide the limit sleeve 1 downward to further fix the tube sheet 3. Finally, insert the steel pipe 2 between the inner wall of the limit sleeve 1 and the outer wall of the first connecting pipe 7 so that it abuts against the top end of the slide plate 14, and then weld the top side of the first connecting pipe 7 and the inner wall of the steel pipe 2 through internal hole welding, thereby completing the connection between the tube sheet 3 and the steel pipe 2.

[0028] Referring to Figures 4 - 6 , a plurality of sliding grooves 8 are arranged on the outer wall of the first connecting pipe 7. A plurality of sliding blocks 17 are fixedly connected to the inner wall of the slide plate 14, and the sliding blocks 17 are located inside the sliding grooves 8. A ball socket 15 is arranged on the front side of the first connecting pipe 7. A ball 12 is fixedly connected to the front side of the slide plate 14. Buckles 4 are fixedly connected to the bottom ends of the outer wall of the second connecting pipe 10 in all directions. A plurality of buckle grooves 13 are opened at the bottom of the fixing plate 5 in all directions. The specifications of the buckles 4 and the buckle grooves 13 correspond to each other. A socket 9 is fixedly connected to the top side of the second connecting pipe 10. Limiting plates 11 are fixedly connected to the outer walls of the socket 9 in all directions. Slots 16 are opened at the bottom ends of the inner wall of the first connecting pipe 7 in all directions. The specifications of the slots 16 and the limiting plates 11 correspond to each other. A welding ring 6 is arranged on the top side of the outer wall of the fixing plate 5, and the welding ring 6 is connected to the tube sheet 3 by welding.

[0029] Specifically, first insert the second connecting pipe 10 into the fixing plate 5, so that the buckles 4 around the second connecting pipe 10 enter the buckle grooves 13 opened at the bottom side of the fixing plate 5 to fix the second connecting pipe 10 and prevent it from rotating. Then insert the second connecting pipe 10 into the holes opened inside the tube sheet 3, and then insert the first connecting pipe 7 into the holes opened in the tube sheet 3 so that the first connecting pipe 7 is connected to the second connecting pipe 10, thereby making the limiting block enter the slot 16 opened at the bottom side of the inner wall of the first connecting pipe 7 to fix the first connecting pipe 7 and prevent it from rotating during welding. Then slide the limiting sleeve 1 downward so that the ball 12 enters the ball groove 15. Since metal has deformability, the first connecting pipe 7 can exert a force on the ball 12, thereby squeezing the ball 12 so that it can slide on the outer wall of the first connecting pipe 7. When it reaches the ball groove 15, the ball 12 no longer receives the force from the first connecting rod and thus enters the ball groove 15, thereby accurately limiting the tube sheet 3 and reducing the error generated during installation.

[0030] Working principle: First insert the second connecting pipe 10 into the fixing plate 5 so that the buckles 4 around the second connecting pipe 10 enter the buckle grooves 13 opened at the bottom side of the fixing plate 5. Then insert the second connecting pipe 10 into the holes opened inside the tube sheet 3, and then insert the first connecting pipe 7 into the holes opened in the tube sheet 3 so that the first connecting pipe 7 is connected to the second connecting pipe 10, thereby making the limiting block enter the slot 16 opened at the bottom side of the inner wall of the first connecting pipe 7. Then, through internal hole welding, weld the first connecting pipe 7 and the second connecting pipe 10 through the inside of the second connecting pipe 10, thereby fixing the tube sheet 3 between the fixing plate 5 and the sliding plate 14. Then slide the limiting sleeve 1 downward so that the ball 12 enters the ball groove 15, thereby further fixing the tube sheet 3. Then weld the welding ring to the tube sheet 3 to complete the fixing of the tube sheet 3. Finally, insert the steel pipe 2 between the inner wall of the limiting sleeve 1 and the outer wall of the first connecting pipe 7 to make it abut against the top end of the sliding plate 14, and then weld the top side of the first connecting pipe 7 to the inner wall of the steel pipe 2 through internal hole welding to complete the connection between the tube sheet 3 and the steel pipe 2.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Structure of internal hole welded tube sheet welding joint, including a limit sleeve (1), characterized in that: The bottom side of the limiting sleeve (1) is fixedly connected to a slide plate (14), the inside of the slide plate (14) is slidably connected to a connecting pipe (7), the bottom side of the connecting pipe (7) is slidably connected to a connecting pipe (10), the outer wall of the connecting pipe (10) is slidably connected to a fixed plate (5), the outer walls of the connecting pipe (7) and the connecting pipe (10) are provided with tube plates (3), the inner wall of the limiting sleeve (1) is provided with a steel pipe (2), and the steel pipe (2) is located on the top side of the slide plate (14).

2. The internal hole welded tube sheet welding joint structure according to claim 1, characterized in that: The outer wall of the connecting pipe (7) is provided with a plurality of slide grooves (8), and the inner wall of the slide plate (14) is fixedly connected with a plurality of sliding blocks (17), and the sliding blocks (17) are located inside the slide grooves (8).

3. The inner hole welded tube sheet welding joint structure according to claim 1, characterized in that: The front side of the connecting pipe (7) is provided with a ball-locking groove (15), and the front side of the sliding plate (14) is fixedly connected with a locking ball (12).

4. The internal hole welded tube sheet welding joint structure according to claim 1, characterized in that: Buckles (4) are fixedly connected to the bottom ends of the outer walls of the second connecting pipe (10), and a plurality of buckle grooves (13) are provided around the bottom side of the fixing plate (5).

5. The structure of the internal hole welded tube sheet welding joint according to claim 4, characterized in that: The specifications of the buckle (4) and the buckle groove (13) correspond to each other.

6. The structure of the internal hole welded tube sheet welding joint according to claim 1, characterized in that: The top side of the second connecting pipe (10) is fixedly connected with a plug sleeve (9), the outer wall of the plug sleeve (9) is fixedly connected with a limit plate (11) on all sides, and the bottom side of the inner wall of the first connecting pipe (7) is provided with slots (16) on all sides.

7. The structure of the internal hole welded tube sheet welding joint according to claim 6, characterized in that: The slot (16) corresponds to the specifications of the limiting plate (11).

8. The internal hole welded tube sheet welding joint structure according to claim 1, characterized in that: A welding ring (6) is provided on the top side of the outer wall of the fixing plate (5), and the welding ring (6) is connected to the tube plate (3) by welding.

Images