Trolley for longitudinal seam welding protection

Abstract

The utility model discloses a trolley for longitudinal seam welding protection, which comprises a movable trolley bottom plate and a protective cover, a fixed column is arranged at the upper end of the movable trolley bottom plate, a movable column is arranged at the top of the fixed column, a fixed bolt is mounted on the outer wall of the fixed column, a fixed disc B is mounted at the top of the movable column, and a fixed disc A is arranged at the upper end of the fixed disc B; a connecting column is installed at the top of the fixing disc A, a protective cover is installed at the top of the connecting column, a threaded bolt is arranged between the protective cover and the connecting column, a supporting spring is installed in the fixing column, a screw is installed between the fixing disc A and the fixing disc B, a rotating plate is connected to the bottom of the moving trolley bottom plate, and a fixing shell is connected to the lower portion of the rotating plate. Different protective covers can be replaced according to different materials, different heights and different sizes, the trolley is connected with the protective covers, protection is achieved without manual lifting, and labor intensity is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of welding protection, in particular to a trolley for longitudinal seam welding protection. Background Art

[0002] When welding longitudinal seam panels of nonferrous metals such as stainless steel, nickel-based alloys, titanium, and zirconium, the inner side needs to be protected by a protective cover to prevent oxidation on the back side and to isolate the weld from contact with gases such as oxygen, hydrogen, and nitrogen, which may affect the weld structure and performance. Therefore, gas filling protection on the inner side is essential.

[0003] Currently, protection is required manually through lifting and tracking, which is labor-intensive and affects work efficiency. Therefore, it is necessary to make a simple protective tooling that is easy to operate and reduces labor intensity.

[0004] In view of this, research and improvement are carried out on the existing problems, and a trolley for longitudinal seam welding protection is provided, which has a reasonable structural design. This scheme is to install the protective cover on the trolley; it is fixed by retractable columns and can be used for flat plate splicing welds of various heights, thereby reducing labor intensity. The purpose is to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a trolley for longitudinal seam welding protection.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a trolley with longitudinal seam welding protection, comprising a moving vehicle bottom plate and a protective cover, a fixed column is arranged at the upper end of the moving vehicle bottom plate, a movable column is arranged at the top of the fixed column, a fixing bolt is installed on the outer wall of the fixed column, a fixed plate B is installed at the top of the movable column, a fixed plate A is arranged at the upper end of the fixed plate B, a connecting column is installed at the top of the fixed plate A, a protective cover is installed at the top of the connecting column, a threaded pin is arranged between the protective cover and the connecting column, a supporting spring is installed inside the fixed column, a screw is installed between the fixed plate A and the fixed plate B, a rotating plate is connected to the bottom of the moving vehicle bottom plate, a fixed shell is connected below the rotating plate, a moving wheel is arranged inside the fixed shell, and a stop plate is arranged above the moving wheel.

[0007] As a further description of the above technical solution:

[0008] The fixed column is fixedly installed on the upper surface of the mobile vehicle bottom plate, the support spring is fixedly installed inside the fixed column, the top of the support spring is fixedly connected to the movable column, the movable column is movably connected to the top of the fixed column, and a fixing bolt is threadedly connected between the fixed column and the movable column, and the number of the fixing bolts is several.

[0009] As a further description of the above technical solution:

[0010] The fixed plate B is integrally connected to the top of the movable column, the fixed plate A is integrally connected to the bottom of the connecting column, the fixed plate A has the same size as the fixed plate B, and the screw is threadedly connected between the fixed plate A and the fixed plate B.

[0011] As a further description of the above technical solution:

[0012] The threaded pin is threadedly connected between the connecting column and the protective cover, the protective cover is movably connected to the top of the connecting column, and the size of the protective cover is larger than the size of the connecting column.

[0013] As a further description of the above technical solution:

[0014] The rotating plate is rotatably connected to the bottom of the bottom plate of the moving vehicle, the number of the rotating plates is four, and the fixed shell is fixedly installed on the bottom of the rotating plate.

[0015] As a further description of the above technical solution:

[0016] The moving wheel is rotatably connected to the inside of the fixed shell, and the stop plate is movably connected to the upper end of the moving wheel. The number of the stop plates is four.

[0017] The utility model has the following beneficial effects:

[0018] In the utility model, the trolley for longitudinal seam welding protection is cleverly designed, and a stable and safe operation is achieved through the coordinated action of multiple components. The design of the mobile trolley bottom plate and the protective cover not only facilitates the movement of the equipment, but also effectively protects the welding area and prevents the influence of external factors on the welding quality.

[0019] The design of the fixed column and the movable column allows the height of the trolley to be freely adjusted to meet the welding requirements of different heights. The setting of the support spring enhances the stability of the movable column, so that it can maintain a good state in various operating environments. The fixed plate B is connected to the fixed plate A by screws. This design is simple and easy, and also ensures the stability of the fixed plate. The combination of the threaded pin and the protective cover allows the protective cover to be flexibly opened and closed, which is convenient for operators to perform welding operations.

[0020] The design of the rotating plate, fixed shell and moving wheels allows the trolley to move flexibly on various terrains, greatly improving its adaptability and convenience. The design of the stop plate effectively limits the rotation range of the moving wheels and prevents the trolley from excessive movement.

[0021] This solution is to install the protective cover on a trolley; fix it through a retractable column and can be used for flat plate splicing welds of various heights, thereby reducing labor intensity.

[0022] The utility model can replace different protective covers according to different materials, different heights and different sizes, and adopts a trolley connected with the protective cover, which does not need to be lifted by people for protection, thereby greatly reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a trolley for longitudinal seam welding protection proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the interior of a fixing column of a trolley with longitudinal seam welding protection proposed by the utility model;

[0025] Figure 3 This is an enlarged view of the moving wheels of a trolley for longitudinal seam welding protection proposed by the utility model.

[0026] Legend:

[0027] 1. Moving vehicle bottom plate; 2. Protective cover; 3. Fixed column; 4. Movable column; 5. Connecting column; 6. Fixed bolt; 7. Threaded pin; 8. Fixed plate A; 9. Fixed plate B; 10. Rotating plate; 11. Support spring; 12. Screw; 13. Fixed shell; 14. Moving wheel; 15. Stop plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model 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 a limitation on the present utility model; the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, or it can be the internal connection of two elements. 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.

[0030] Reference Figure 1-3 The utility model provides an embodiment: a trolley for longitudinal seam welding protection, comprising a mobile vehicle bottom plate 1 and a protective cover 2, a fixed column 3 is arranged at the upper end of the mobile vehicle bottom plate 1, a movable column 4 is arranged at the top of the fixed column 3, a fixing bolt 6 is installed on the outer wall of the fixed column 3, a fixed disk B9 is installed on the top of the movable column 4, a fixed disk A8 is arranged at the upper end of the fixed disk B9, a connecting column 5 is installed on the top of the fixed disk A8, a protective cover 2 is installed on the top of the connecting column 5, a threaded pin 7 is arranged between the protective cover 2 and the connecting column 5, a supporting spring 11 is installed inside the fixed column 3, a screw 12 is installed between the fixed disk A8 and the fixed disk B9, a rotating plate 10 is connected to the bottom of the mobile vehicle bottom plate 1, a fixed shell 13 is connected below the rotating plate 10, a moving wheel 14 is arranged inside the fixed shell 13, and a stop plate 15 is arranged above the moving wheel 14.

[0031] In the utility model, the fixed column 3 is fixedly mounted on the upper surface of the mobile vehicle bottom plate 1, the support spring 11 is fixedly mounted inside the fixed column 3, the top of the support spring 11 is fixedly connected to the movable column 4, the movable column 4 is movably connected to the top of the fixed column 3, a fixing bolt 6 is threadedly connected between the fixed column 3 and the movable column 4, the number of the fixing bolts 6 is several, the support spring 11 is cleverly mounted inside the fixed column 3, and its top is closely connected to the movable column 4. This design allows the movable column 4 to move freely on the top of the fixed column 3 while maintaining the overall stability.

[0032] Specifically, the connection between the fixed column 3 and the movable column 4 is a threaded connection, and a plurality of fixing bolts 6 are used, so that the connection between the two is both firm and reliable. The number of these fixing bolts 6 is carefully designed to ensure the stability of the entire structure, so that the movable column 4 can be effectively supported and restricted when it moves.

[0033] Furthermore, the fixing plate B9 is integrally connected to the top of the movable column 4, and the fixing plate A8 is integrally connected to the bottom of the connecting column 5. The fixing plate A8 is the same size as the fixing plate B9. The screw 12 is threadedly connected between the fixing plate A8 and the fixing plate B9. The fixing plate A8 is the same size as the fixing plate B9. This consistency ensures that they can fit together perfectly to form a stable connection. The subtlety of this design is that it reduces possible errors and improves the stability of the entire system.

[0034] Between the two fixed disks, the screw 12 plays a connecting role with its unique thread structure. It is tightly screwed into between the two fixed disks and firmly binds them together.

[0035] Furthermore, the threaded pin 7 is threadedly connected between the connecting column 5 and the protective cover 2 , the protective cover 2 is movably connected to the top of the connecting column 5 , and the size of the protective cover 2 is larger than the size of the connecting column 5 .

[0036] Furthermore, the rotating plate 10 is rotatably connected to the bottom of the mobile vehicle bottom plate 1 , the number of the rotating plates 10 is four, and the fixed housing 13 is fixedly installed at the bottom of the rotating plate 10 .

[0037] The specific design of the rotating plate, fixed shell and moving wheels enables the trolley to move flexibly on various terrains, greatly improving its adaptability and convenience. The design of the stop plate effectively limits the rotation range of the moving wheels and prevents the trolley from excessive movement.

[0038] Furthermore, the moving wheel 14 is rotatably connected to the interior of the fixed housing 13 , and the stop plate 15 is movably connected to the upper end of the moving wheel 14 , and the number of the stop plates 15 is four.

[0039] Working principle and usage process: When the trolley is needed, the rotating plate 10 can easily adjust the direction of the trolley to adapt it to different working scenes. Through the fixed shell 13 under the rotating plate 10 and the moving wheels 14 arranged inside, the trolley can be flexibly moved on the ground to facilitate the transportation of items.

[0040] When welding the longitudinal seam, the protective cover 2 can be covered on the longitudinal seam by adjusting the fixed column 3 and the movable column 4 to protect the welding process from being damaged by splashes. The protective cover 2 can be stably connected to the trolley by connecting the fixed plate A8 and the fixed plate B9, and the protective cover 2 can be easily removed and installed by adjusting the threaded pin 7.

[0041] Argon is an inert gas. Using inert gas on the back of the weld can protect the weld from contact with the air and achieve the effect of no oxidation. The protective tooling shortens the distance of inert gas protection, fixes the tooling under the cylinder panel, and then inflates the tooling to expel the air in a very short time to achieve the purpose of protecting the weld. In terms of material selection, stainless steel is needed to make the tooling, and then the protective cover is installed on the stainless steel trolley. Different sizes of protective covers can be replaced according to different materials and different cylinder sizes to reduce labor intensity and improve efficiency.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A trolley for longitudinal seam welding protection, comprising a movable trolley bottom plate (1) and a protective cover (2), characterized in that: A fixed column (3) is arranged at the upper end of the mobile vehicle bottom plate (1), a movable column (4) is arranged at the top of the fixed column (3), a fixing bolt (6) is installed on the outer wall of the fixed column (3), a fixed plate B (9) is installed at the top of the movable column (4), a fixed plate A (8) is arranged at the upper end of the fixed plate B (9), a connecting column (5) is installed at the top of the fixed plate A (8), a protective cover (2) is installed at the top of the connecting column (5), a threaded pin (7) is arranged between the protective cover (2) and the connecting column (5), a supporting spring (11) is installed inside the fixed column (3), a screw (12) is installed between the fixed plate A (8) and the fixed plate B (9), a rotating plate (10) is connected to the bottom of the mobile vehicle bottom plate (1), a fixed housing (13) is connected below the rotating plate (10), a moving wheel (14) is arranged inside the fixed housing (13), and a stop plate (15) is arranged above the moving wheel (14).

2. A trolley for longitudinal seam welding protection according to claim 1, characterized in that: The fixed column (3) is fixedly mounted on the upper surface of the mobile vehicle bottom plate (1), the support spring (11) is fixedly mounted inside the fixed column (3), the top of the support spring (11) is fixedly connected to the movable column (4), the movable column (4) is movably connected to the top of the fixed column (3), and a fixing bolt (6) is threadedly connected between the fixed column (3) and the movable column (4), and the number of the fixing bolts (6) is several.

3. A trolley for longitudinal seam welding protection according to claim 1, characterized in that: The fixed plate B (9) is integrally connected to the top of the movable column (4), the fixed plate A (8) is integrally connected to the bottom of the connecting column (5), the fixed plate A (8) and the fixed plate B (9) have the same size, and the screw (12) is threadedly connected between the fixed plate A (8) and the fixed plate B (9).

4. A trolley for longitudinal seam welding protection according to claim 1, characterized in that: The threaded pin (7) is threadedly connected between the connecting column (5) and the protective cover (2); the protective cover (2) is movably connected to the top of the connecting column (5); and the size of the protective cover (2) is larger than the size of the connecting column (5).

5. A trolley for longitudinal seam welding protection according to claim 1, characterized in that: The rotating plate (10) is rotatably connected to the bottom of the mobile vehicle bottom plate (1), the number of the rotating plates (10) is four, and the fixed housing (13) is fixedly mounted on the bottom of the rotating plate (10).

6. A trolley for longitudinal seam welding protection according to claim 1, characterized in that: The moving wheel (14) is rotatably connected to the interior of the fixed housing (13), and the stop plate (15) is movably connected to the upper end of the moving wheel (14). The number of the stop plates (15) is four.

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