Steel structure welding protection device

Abstract

The utility model discloses a steel structure welding protection device, which belongs to the technical field of bridge steel structure welding and comprises a supporting plate connected near a welding seam, a bottom plate is fixedly connected onto the supporting plate, and a first connecting plate, a second connecting plate and a third connecting plate are arranged on the bottom plate. A welding slag receiving box is formed through the bottom plate, the supporting plate, the first connecting plate, the second connecting plate and the third connecting plate, the first connecting plate, the second connecting plate and the third connecting plate can slide relative to the bottom plate, when the first connecting plate slides towards the first direction end, the second connecting plate slides towards the second direction end, and the third connecting plate slides towards the third direction end; and the size of the welding slag receiving box can be changed. According to the welding slag receiving box, the welding slag receiving boxes with different sizes can be selected according to actual use requirements, the size of the welding slag receiving box is increased when the size of a welding seam is large, and the size of the welding slag receiving box is decreased when the size of the welding seam is small, so that the size of the welding slag receiving box is matched with the size of the welding seam.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge steel structure welding, and in particular relates to a steel structure welding protective device. Background Art

[0002] Bridge construction is divided into beam bridges, arch bridges, suspension bridges, rigid frame bridges, cable-stayed bridges and combined system bridges according to the main load-bearing structural system. The first three are the basic systems of bridges. According to the building materials of the bridge superstructure, there are wooden bridges, stone bridges, concrete bridges, reinforced concrete bridges, prestressed concrete bridges, steel bridges and combined beam bridges. There are also bridges built with lightweight concrete, aluminum alloy, fiberglass and other building materials. In the process of road and bridge construction, it is usually necessary to install corresponding road signs, guardrails and other supporting facilities.

[0003] Since the welding operation area of ​​some beam sections is located above the existing road, when welding the bridge section, welding slag may splash and cause harm to passing vehicles and pedestrians. In addition, the size of the existing protective device cannot be adjusted, which reduces the applicability of the protective device.

[0004] Therefore, it is urgent to design a steel structure welding protection device to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a steel structure welding protection device, which has the advantages of receiving welding slag and avoiding it, and solves the problems mentioned in the background technology.

[0006] In order to achieve the above-mentioned purpose, the specific technical scheme of a steel structure welding protection device of the utility model is as follows:

[0007] A steel structure welding protection device includes a support plate connected near a weld, a base plate fixedly connected to the support plate, a first connecting plate, a second connecting plate and a third connecting plate provided on the base plate, so that a welding slag receiving box is formed by the base plate, the support plate, the first connecting plate, the second connecting plate and the third connecting plate, and the first connecting plate, the second connecting plate and the third connecting plate can all slide relative to the base plate. When the first connecting plate slides toward a first direction end, the second connecting plate slides toward a second direction end, and the third connecting plate slides toward a third direction end, so that the welding slag receiving box can change its size.

[0008] Furthermore, one end of the first connecting plate is in contact with the inner wall of the supporting plate, one end of the second connecting plate is in contact with the inner wall of the first connecting plate, one end of the third connecting plate is in contact with the inner wall of the second connecting plate, and one end of the supporting plate is in contact with the inner wall of the third connecting plate.

[0009] Furthermore, a first fixing plate is fixedly connected to the bottom plate, a first electric push rod is fixedly connected to the first fixing plate, and an output end of the first electric push rod is connected to the first connecting plate.

[0010] Furthermore, a sliding groove is opened on the first fixed plate, and a first sliding rod is slidably connected to the sliding groove of the first fixed plate. One end of the first sliding rod is fixedly connected to the output end of the first electric push rod, and one end of the first sliding rod away from the first electric push rod is fixedly connected to the first connecting plate.

[0011] Furthermore, a second fixed plate is fixedly connected to the bottom plate, a first telescopic rod is fixedly connected to the second fixed plate, a telescopic end of the first telescopic rod is fixedly connected to the second connecting plate, and when the first connecting plate moves toward the first direction end, the second connecting plate moves toward the second direction end.

[0012] Furthermore, a sliding groove is opened on the second fixed plate, and a second sliding rod is slidably connected to the sliding groove of the second fixed plate. One end of the second sliding rod is fixedly connected to the telescopic end of the first telescopic rod, and one end of the second sliding rod away from the first telescopic rod is fixedly connected to the second connecting plate.

[0013] Furthermore, a third fixing plate is fixedly connected to the bottom plate, a second telescopic rod is fixedly connected to the third fixing plate, a telescopic end of the second telescopic rod is fixedly connected to the third connecting plate, and when the second fixing plate moves toward the second direction end, the third connecting plate moves toward the third direction end.

[0014] Furthermore, a sliding groove is provided on the third fixed plate, and a third sliding rod is slidably connected to the sliding groove of the third fixed plate. One end of the third sliding rod is fixedly connected to the telescopic end of the second telescopic rod, and one end of the third sliding rod away from the second telescopic rod is fixedly connected to the third connecting plate.

[0015] Furthermore, it also includes a support block, on which a magnetic block is provided, through which the support plate is connected to the steel structure near the weld, a second electric push rod is fixedly connected to the support block, and an output end of the second electric push rod is fixedly connected to the support plate.

[0016] Furthermore, the second electric push rod is electrically connected to the first electric push rod, and when the output end of the first electric push rod moves toward the first direction end, the output end of the second electric push rod moves toward the fourth direction end.

[0017] The utility model has the following advantages: welding slag receiving boxes of different sizes can be selected according to actual use requirements, and when the size of the weld is larger, the size of the welding slag receiving box becomes larger, and when the size of the weld is smaller, the size of the welding slag receiving box becomes smaller, so that the size of the welding slag receiving box matches the size of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the welding protection device of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the welding slag receiving box of the utility model when it is larger in size;

[0020] Figure 3 This is a structural schematic diagram of the welding slag receiving box of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the welding slag receiving box of the utility model when it is smaller in size;

[0022] Markings in the figure are as follows: 1. Base plate; 11. Support plate; 12. First connecting plate; 14. Second connecting plate; 15. Third connecting plate; 16. First sliding rod; 17. Second sliding rod; 18. Third sliding rod; 2. First electric push rod; 21. First telescopic rod; 22. Second telescopic rod; 23. Spring; 24. First fixed plate; 25. Second fixed plate; 26. Third fixed plate; 3. Support block; 31. Second electric push rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0025] Please refer to the attached Figure 1 To Attachment Figure 4 The utility model describes a steel structure welding protection device.

[0026] Since the welding operation area of ​​some beam sections is located above the existing road, when welding the bridge section, welding slag may splash and cause harm to passing vehicles and pedestrians. In addition, the size of the existing protective device cannot be adjusted, which reduces the applicability of the protective device.

[0027] Therefore, the welding protection device includes a support plate 11 connected near the weld, the support plate 11 is fixedly connected to the bottom plate 1, and the bottom plate 1 is provided with a first connecting plate 12, a second connecting plate 14 and a third connecting plate 15, so that a welding slag receiving box is formed by the bottom plate 1, the support plate 11, the first connecting plate 12, the second connecting plate 14 and the third connecting plate 15, and the first connecting plate 12, the second connecting plate 14 and the third connecting plate 15 can all slide relative to the bottom plate 1, when the first connecting plate 12 slides toward the first direction end A, the second connecting plate 14 slides toward the second direction end B, and the third connecting plate 15 slides toward the third direction end C, so that the welding slag receiving box can change its size; thereby, welding slag receiving boxes of different sizes can be selected according to actual use requirements, and when the size of the weld is larger, the size of the welding slag receiving box becomes larger, and when the size of the weld is smaller, the size of the welding slag receiving box becomes smaller, so that the size of the welding slag receiving box matches the size of the weld.

[0028] One end of the first connecting plate 12 is in contact with the inner wall of the support plate 11, one end of the second connecting plate 14 is in contact with the inner wall of the first connecting plate 12, one end of the third connecting plate 15 is in contact with the inner wall of the second connecting plate 14, and one end of the support plate 11 is in contact with the inner wall of the third connecting plate 15, so that when the first connecting plate 12, the second connecting plate 14 and the third connecting plate 15 slide, the welding slag receiving box is always sealed, ensuring that the welding slag will not slide out when it falls into the welding slag receiving box.

[0029] The bottom plate 1 is fixedly connected to a first fixing plate 24 , the first fixing plate 24 is fixedly connected to a first electric push rod 2 , and an output end of the first electric push rod 2 is connected to the first connecting plate 12 .

[0030] A second fixed plate 25 is fixedly connected to the bottom plate 1, and a first telescopic rod 21 is fixedly connected to the second fixed plate 25. The telescopic end of the first telescopic rod 21 is fixedly connected to the second connecting plate 14. When the first connecting plate 12 moves toward the first direction end A, the second connecting plate 14 moves toward the second direction end B.

[0031] A third fixing plate 26 is fixedly connected to the bottom plate 1, and a second telescopic rod 22 is fixedly connected to the third fixing plate 26. The telescopic end of the second telescopic rod 22 is fixedly connected to the third connecting plate 15. When the second fixing plate 25 moves toward the second direction end B, the third connecting plate 15 moves toward the third direction end C.

[0032] When the size of the welding slag receiving box needs to be reduced, the first electric push rod 2 is started, so that the output end of the first electric push rod 2 drives the first connecting plate 12 to move toward the first direction end A. Since one end of the second connecting plate 14 is in contact with the inner wall of the first connecting plate 12 and the second connecting plate 14 is limited by the sliding groove of the second fixed plate 25, the second connecting plate 14 overcomes the elastic force of the first telescopic rod 21, so that the second connecting plate 14 moves toward the second direction end B. Since one end of the third connecting plate 15 is in contact with the inner wall of the second connecting plate 14 and the third connecting plate 15 is limited by the sliding groove of the third fixed plate 26, the third connecting plate 15 slides toward the third direction end C, so that the size of the welding slag receiving box becomes smaller.

[0033] When the size of the welding slag receiving box needs to be increased, the first electric push rod 2 is started, so that the output end of the first electric push rod 2 drives the first connecting plate 12 to move away from the first direction end A. At this time, the elastic force of the first telescopic rod 21 is released, so that the second connecting plate 14 moves away from the second direction end B, so that the second connecting plate 14 is always in contact with the first connecting plate 12, and the elastic force of the second telescopic rod 22 is released synchronously, so that the third connecting plate 15 slides away from the third direction end C, so that the size of the welding slag receiving box becomes larger.

[0034] Preferably, a spring 23 is provided on the first telescopic rod 21 and the second telescopic rod 22 to ensure the elastic force of the first telescopic rod 21 and the second telescopic rod 22 .

[0035] A sliding groove is provided on the first fixed plate 24, and a first sliding rod 16 is slidably connected to the sliding groove of the first fixed plate 24. One end of the first sliding rod 16 is fixedly connected to the output end of the first electric push rod 2, and one end of the first sliding rod 16 away from the first electric push rod 2 is fixedly connected to the first connecting plate 12; the first sliding rod 16 is limited by the sliding groove of the first fixed plate 24, that is, the sliding direction of the first connecting plate 12 is limited.

[0036] A sliding groove is provided on the second fixed plate 25, and a second sliding rod 17 is slidably connected to the sliding groove of the second fixed plate 25. One end of the second sliding rod 17 is fixedly connected to the telescopic end of the first telescopic rod 21, and one end of the second sliding rod 17 away from the first telescopic rod 21 is fixedly connected to the second connecting plate 14; the second sliding rod 17 is limited by the sliding groove of the second fixed plate 25, that is, the sliding direction of the second connecting plate 14 is limited.

[0037] A sliding groove is provided on the third fixed plate 26, and a third sliding rod 18 is slidably connected to the sliding groove of the third fixed plate 26. One end of the third sliding rod 18 is fixedly connected to the telescopic end of the second telescopic rod 22, and one end of the third sliding rod 18 away from the second telescopic rod 22 is fixedly connected to the third connecting plate 15; the third sliding rod 18 is limited by the sliding groove of the third fixed plate 26, that is, the sliding direction of the third connecting plate 15 is limited.

[0038] The welding protection device also includes a support block 3, on which a magnetic block is provided, and the support plate 11 is connected to the steel structure near the weld through the magnetic block. A second electric push rod 31 is fixedly connected to the support block 3, and the output end of the second electric push rod 31 is fixedly connected to the support plate 11; by setting the support block 3, the welding slag receiving box is supported by the magnetic block.

[0039] Preferably, the support block 3 is connected to the steel structure near the weld by a magnetic block. In an embodiment of the utility model, it can be connected to the steel structure near the weld by other fixing methods, as long as the support block 3 can be connected to the steel structure near the weld.

[0040] The second electric push rod 31 is electrically connected to the first electric push rod 2 . When the output end of the first electric push rod 2 moves toward the first direction end A, the output end of the second electric push rod 31 moves toward the fourth direction end D.

[0041] Since the second electric push rod 31 is electrically connected to the first electric push rod 2, when the output end of the first electric push rod 2 drives the first connecting plate 12 to move toward the first direction end A to reduce the size of the welding slag receiving box, the output end of the second electric push rod 31 simultaneously moves toward the fourth direction end D to ensure that the size of the welding slag receiving box is reduced while its center is still located at the center of the weld. When the output end of the first electric push rod 2 drives the first connecting plate 12 to move away from the first direction end A to increase the size of the welding slag receiving box, the output end of the second electric push rod 31 simultaneously moves away from the fourth direction end D to ensure that the size of the welding slag receiving box is increased while its center is still located at the center of the weld. Therefore, when the size of the welding slag receiving box changes, the welding slag receiving box can still be located at the center of the weld, thereby ensuring the quality of the welding slag receiving box receiving the welding slag.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A steel structure welding protection device, characterized in that: It includes a support plate connected near the weld, the support plate is fixedly connected to a base plate, the base plate is provided with a first connecting plate, a second connecting plate and a third connecting plate, so that a welding slag receiving box is formed by the base plate, the support plate, the first connecting plate, the second connecting plate and the third connecting plate, the first connecting plate, the second connecting plate and the third connecting plate can all slide relative to the base plate, when the first connecting plate slides toward the first direction end, the second connecting plate slides toward the second direction end, and the third connecting plate slides toward the third direction end, so that the welding slag receiving box can change its size.

2. The steel structure welding protection device according to claim 1 is characterized in that: One end of the first connecting plate is in contact with the inner wall of the supporting plate, one end of the second connecting plate is in contact with the inner wall of the first connecting plate, one end of the third connecting plate is in contact with the inner wall of the second connecting plate, and one end of the supporting plate is in contact with the inner wall of the third connecting plate.

3. The steel structure welding protection device according to claim 1 is characterized in that: The bottom plate is fixedly connected with a first fixing plate, the first fixing plate is fixedly connected with a first electric push rod, and the output end of the first electric push rod is connected with the first connecting plate.

4. The steel structure welding protection device according to claim 3 is characterized in that: A sliding groove is provided on the first fixed plate, and a first sliding rod is slidably connected to the sliding groove of the first fixed plate. One end of the first sliding rod is fixedly connected to the output end of the first electric push rod, and one end of the first sliding rod away from the first electric push rod is fixedly connected to the first connecting plate.

5. The steel structure welding protection device according to claim 3 is characterized in that: The bottom plate is fixedly connected with a second fixing plate, the second fixing plate is fixedly connected with a first telescopic rod, the telescopic end of the first telescopic rod is fixedly connected with the second connecting plate, and when the first connecting plate moves toward the first direction end, the second connecting plate moves toward the second direction end.

6. The steel structure welding protection device according to claim 5, characterized in that: A sliding groove is provided on the second fixed plate, and a second sliding rod is slidably connected to the sliding groove of the second fixed plate. One end of the second sliding rod is fixedly connected to the telescopic end of the first telescopic rod, and one end of the second sliding rod away from the first telescopic rod is fixedly connected to the second connecting plate.

7. The steel structure welding protection device according to claim 5, characterized in that: The bottom plate is fixedly connected with a third fixing plate, the third fixing plate is fixedly connected with a second telescopic rod, the telescopic end of the second telescopic rod is fixedly connected with the third connecting plate, and when the second fixing plate moves toward the second direction end, the third connecting plate moves toward the third direction end.

8. The steel structure welding protection device according to claim 7, characterized in that: A sliding groove is provided on the third fixed plate, and a third sliding rod is slidably connected to the sliding groove of the third fixed plate. One end of the third sliding rod is fixedly connected to the telescopic end of the second telescopic rod, and one end of the third sliding rod away from the second telescopic rod is fixedly connected to the third connecting plate.

9. The steel structure welding protection device according to claim 1, characterized in that: It also includes a support block, on which a magnetic block is provided, through which the support plate is connected to the steel structure near the weld, a second electric push rod is fixedly connected to the support block, and an output end of the second electric push rod is fixedly connected to the support plate.

10. The steel structure welding protection device according to claim 3 or 9, characterized in that: The second electric push rod is electrically connected to the first electric push rod. When the output end of the first electric push rod moves toward the first direction end, the output end of the second electric push rod moves toward the fourth direction end.

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