An auxiliary tool for detecting the corner weld of a civil air defense door

Abstract

The utility model discloses a kind of civil air defence door fillet weld detection auxiliary tools, it is related to fillet weld detection technical field. Including: first vertical pole, second vertical pole and connecting rod, the both ends of connecting rod are connected with the one end of first vertical pole and the one end of second vertical pole, sliding connection has transverse extension piece between first vertical pole and second vertical pole, positioning threaded hole is all provided on first vertical pole and second vertical pole, positioning bolt is all set in positioning threaded hole, fixed threaded hole is set on fixed plate, fixed bolt is set in fixed threaded hole, first cross bar is connected with first vertical pole and fixed plate, second cross bar is connected with second vertical pole and fixed plate, sliding connection has longitudinal extension piece between first cross bar and second cross bar. The utility model discloses provide a kind of civil air defence door fillet weld detection auxiliary tools, length of detection step in horizontal and vertical direction is extended, the stable placement of detection tool in detection process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fillet weld inspection technology, and more specifically to an auxiliary tool for inspecting fillet welds on civil defense doors. Background Technology

[0002] As a core protective device in civil air defense projects, the welding quality of air-raid shelter doors directly affects the protective effectiveness and structural safety of the project. Among these, the fillet weld between the door panel and the door frame is a critical load-bearing weld, and its appearance quality is the primary indicator for evaluating the welding process and structural integrity. Therefore, rigorous and precise visual inspection of these fillet welds is essential during both factory acceptance and installation phases.

[0003] Currently, the visual inspection of fillet welds typically relies on traditional tools such as weld inspection rulers, calipers, and magnifying glasses, depending on the inspector's naked eye. However, in the actual structure of air-raid shelter doors, the fillet weld area formed after the door panel and frame are closed has a unique geometric feature—an inspection step. This step is a special structure designed to meet the sealing and pressure-bearing requirements of the door panel and frame.

[0004] The inspection step where the corner weld of the air-raid shelter door is located is very short in length and width. This compact structure makes it impossible for inspectors to place tools such as weld inspection rulers on the surface of the weld to be inspected in a stable and standard manner, and it is also impossible to obtain sufficient reference surfaces in both vertical and horizontal directions for accurate measurement.

[0005] Therefore, how to provide an auxiliary tool to provide a stable and standard installation and measurement benchmark for conventional testing tools is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides an auxiliary tool for inspecting corner welds on air-raid shelter doors, extending the length of the inspection step in both the horizontal and vertical directions to ensure stable placement of the inspection tool during the inspection process. To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides an auxiliary tool for inspecting corner welds on air-raid shelter doors, including: A lateral extension assembly includes a first vertical rod, a second vertical rod, and a connecting rod. The first vertical rod and the second vertical rod are spaced apart. The two ends of the connecting rod are respectively connected to one end of the first vertical rod and one end of the second vertical rod. A lateral extension component is slidably connected between the first vertical rod and the second vertical rod. Both the first vertical rod and the second vertical rod are provided with positioning threaded holes, and positioning bolts are provided in the positioning threaded holes. A fixing component includes a fixing plate, which is spaced apart from the connecting rod. The fixing plate has at least one fixing threaded hole, and a fixing bolt is installed in the fixing threaded hole. The longitudinal extension assembly includes a first crossbar and a second crossbar. One end of the first crossbar is connected to the end of the first vertical bar away from the connecting rod, and the other end of the first crossbar is connected to the fixing plate. One end of the second crossbar is connected to the end of the second vertical bar away from the connecting rod, and the other end of the second crossbar is connected to the fixing plate. A longitudinal extension member is slidably connected between the first crossbar and the second crossbar.

[0007] Furthermore, the longitudinal extension assembly also includes a slider, which is inverted U-shaped and surrounds the outside of the first and second crossbars. The bottom end of the slider is flush with the bottom ends of the first and second crossbars. A first slide rail is provided on each of the two inner walls of the slider. A first slide rail is provided on the side wall of the first and second crossbars that are away from each other. The fixing plate is connected to the end of the slider that is away from the first and second vertical bars. The longitudinal extension assembly is slidably connected between the first slide rail and the first crossbar.

[0008] Furthermore, the lateral extension member includes a slide rod and a lateral extension block. Both the first vertical rod and the second vertical rod are provided with vertical second slide tracks. The two ends of the slide rod are respectively disposed in the two second slide tracks. The lateral extension block is connected to the side wall of the slide rod away from the connecting rod. A rotating rod is rotatably connected to each end of the slide rod. The rotating rod extends outside the second slide track. A first fixing block is provided at the end of the rotating rod away from the slide rod. A first magnet is provided at the end of the first fixing block near the slide rod.

[0009] Furthermore, the longitudinal extension member includes a longitudinal extension block and a second fixing block. The top ends of the first crossbar and the second crossbar are provided with second slide rails. The bottom end of the longitudinal extension block is provided with a third slide rail that cooperates with the second slide rail. A second fixing block is rotatably connected to the side walls on both sides of the longitudinal extension block. A second magnet is provided on the inner side wall of the second fixing block.

[0010] Furthermore, the lateral extension assembly also includes a lateral extension plate, which is inverted U-shaped. The lateral extension plate is disposed above the lateral extension block and surrounds the outside of the lateral extension block. A third slide rail is provided on both side walls of the lateral extension block, and a fourth slide rail is provided on both inner walls of the lateral extension plate. A third magnet is provided at the bottom of the lateral extension plate near the fixed plate.

[0011] Furthermore, a first pressure plate is provided at the end of the positioning bolt near the fixing plate.

[0012] Furthermore, a second pressure plate is provided at the end of the fixing bolt near the first vertical rod.

[0013] As can be seen from the above technical solution, compared with the prior art, this utility model discloses an auxiliary tool for inspecting corner welds on air-raid shelter doors. The auxiliary tool is stably fixed on the air-raid shelter door to be inspected by positioning bolts and fixing bolts. By sliding the transverse extension, the transverse extension is made to fit tightly against the horizontal edge of the inspection step, extending the horizontal length of the step. By sliding the longitudinal extension, the longitudinal extension is made to fit tightly against the vertical edge of the inspection step, extending the vertical length of the step. This provides a stable measurement benchmark for the inspection tool in both the horizontal and vertical directions, ensuring the smooth progress of the corner weld appearance inspection and ensuring the accuracy of the inspected structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of the auxiliary tool for inspecting corner welds on civil defense doors provided by this utility model; Figure 2 A side view of the auxiliary tool for inspecting corner welds on civil defense doors provided by this utility model; Figure 3 Provided by this utility model Figure 2 Enlarged view of A in the middle; Figure 4 Another structural schematic diagram of the auxiliary tool for inspecting corner welds on civil defense doors provided by this utility model; Figure 5 This is a structural schematic diagram from another perspective of the auxiliary tool for inspecting corner welds on civil defense doors provided by this utility model.

[0016] In the diagram: 1. Air raid shelter door; 2. Horizontal extension block; 3. Vertical extension block; 4. Fixing bolt; 5. Fixing plate; 6. Sliding component; 7. Detection step; 8. Horizontal extension plate; 9. Second slide rail; 10. Second horizontal bar; 11. First horizontal bar; 12. Second slide rail; 13. First vertical bar; 14. Positioning bolt; 15. First pressure plate; 16. Second pressure plate; 17. First fixing block; 18. Second fixing block; 19. Third slide rail; 20. Second vertical bar; 21. Connecting rod; 22. First slide rail; 23. Edge binding; 24. Slide rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figure 1-5 This utility model discloses an auxiliary tool for inspecting corner welds on air-raid shelter doors, comprising: The lateral extension assembly includes a first vertical rod 13, a second vertical rod 20, and a connecting rod 21. The first vertical rod 13 and the second vertical rod 20 are spaced apart. The two ends of the connecting rod 21 are respectively connected to one end of the first vertical rod 13 and one end of the second vertical rod 20. A lateral extension component is slidably connected between the first vertical rod 13 and the second vertical rod 20. Both the first vertical rod 13 and the second vertical rod 20 are provided with positioning threaded holes, and positioning bolts 14 are provided in the positioning threaded holes. The fixing component includes a fixing plate 5, which is spaced apart from the connecting rod 21. The fixing plate 5 has at least one fixing threaded hole, and a fixing bolt 4 is installed in the fixing threaded hole. The longitudinal extension assembly includes a first horizontal bar 11 and a second horizontal bar 10. One end of the first horizontal bar 11 is connected to the end of the first vertical bar 13 away from the connecting rod 21, and the other end of the first horizontal bar 11 is connected to the fixing plate 5. One end of the second horizontal bar 10 is connected to the end of the second vertical bar 20 away from the connecting rod 21, and the other end of the second horizontal bar 10 is connected to the fixing plate 5. A longitudinal extension member is slidably connected between the first horizontal bar 11 and the second horizontal bar 10.

[0019] When visually inspecting the weld at step 7, the auxiliary tool is attached to the area to be inspected on the air-raid shelter door 1. The positioning bolt 14 and fixing bolt 4 are rotated to fix the auxiliary tool on the air-raid shelter door 1, ensuring the stability of the auxiliary tool and the stability of the inspection benchmark during the inspection process.

[0020] The transverse extension is slid laterally to make it contact the horizontal edge of the detection step 7, and the longitudinal extension is slid longitudinally to make it flush with the vertical edge of the detection platform. This extends the detection step 7 in both the horizontal and vertical directions, lengthens the reference surface for detection, and ensures the accuracy of the detection results.

[0021] In some embodiments, the longitudinal extension assembly further includes a slider 6, which is inverted U-shaped and surrounds the outside of the first crossbar 11 and the second crossbar 10. The bottom end of the slider 6 is flush with the bottom ends of the first crossbar 11 and the second crossbar 10. A first slide rail is provided on both inner walls of the slider 6. A first slide rail 22 is provided on the side wall of the first crossbar 11 and the second crossbar 10 that are far apart from each other. The fixing plate 5 is connected to the end of the slider 6 that is far away from the first vertical bar 13 and the second vertical bar 20. The longitudinal extension is slidably connected between the first slide rail 22 and the first crossbar 11.

[0022] When visually inspecting the weld of the inspection step 7, push the sliding member 6. Through the cooperation of the first slide rail 22 and the first slide, the sliding member 6 slides along the length direction of the first horizontal bar 11 and the second horizontal bar 10, extending the distance between the first vertical bar 13 and the second vertical bar 20 and the fixing plate 5. Place the auxiliary tool on the corresponding position of the air defense door 1. At this time, the first vertical bar 13 and the fixing plate 5 are located on the front and rear sides of the air defense door 1, respectively. Tighten the fixing bolt 4 and the positioning bolt 14 to stably connect the auxiliary tool to the air defense door 1.

[0023] By cooperating with the sliding member 6 and the first horizontal bar 11 and the second horizontal bar 10, the distance between the first vertical bar 13 and the second vertical bar 20 and the fixed plate 5 is changed, so that the auxiliary tool can be firmly fixed on the air defense door 1 of different thicknesses, and the auxiliary tool can be used for the detection of air defense doors 1 of different thicknesses.

[0024] In some embodiments, the lateral extension member includes a slide rod 24 and a lateral extension block 2. The first vertical rod 13 and the second vertical rod 20 are each provided with a vertical second slide rail 12. The two ends of the slide rod 24 are respectively disposed in the two second slide rails 12. The lateral extension block 2 is connected to the side wall of the slide rod 24 away from the connecting rod 21. A rotating rod is rotatably connected to each end of the slide rod 24. The rotating rod extends out of the second slide rail 12. A first fixing block 17 is provided at the end of the rotating rod away from the slide rod 24. A first magnet is provided at the end of the first fixing block 17 near the slide rod.

[0025] The auxiliary tool is fixed to the air-raid shelter door 1. The first fixing block 17 is rotated so that it does not contact the first vertical rod 13 and the second vertical rod 20. The sliding rod 24 is pushed so that it slides in the second slide rail 12, thereby adjusting the height of the horizontal extension block 2. When the horizontal extension block 2 is at the same height as the horizontal plane of the detection step 7, the two first fixing blocks 17 are rotated so that the rotating rod rotates relative to the sliding rod 24. The ends of the two first fixing blocks 17 that are close to each other contact the first vertical rod 13 and the second vertical rod 20 respectively. Through the magnetic force of the first magnet, the two first fixing blocks 17 are connected to the first vertical rod 13 and the second vertical rod 20 respectively, thereby fixing the sliding rod.

[0026] The slide bar 24 drives the horizontal extension block 2 to slide up and down, so that the horizontal extension block 2 can fit with the horizontal edge of the steps at different heights.

[0027] In some embodiments, the longitudinal extension member includes a longitudinal extension block 3 and a second fixing block 18. The top ends of the first crossbar 11 and the second crossbar 10 are provided with second slide rails 9. The bottom end of the longitudinal extension block 3 is provided with a third slide rail that cooperates with the second slide rail 9. A second fixing block 18 is rotatably connected to the side walls on both sides of the longitudinal extension block 3. A second magnet is provided on the inner side wall of the second fixing block 18.

[0028] Connect the auxiliary tool to the air-raid shelter door 1, rotate the second fixing block 18 so that the second fixing block 18 does not contact the first horizontal bar 11 and the second horizontal bar 10, push the longitudinal extension block 3, and through the cooperation of the second slide rail 9 and the third slide, make the longitudinal extension block 3 slide along the length direction of the first horizontal bar 11 and the second horizontal bar 10 until the longitudinal extension block 3 is flush with the vertical edge of the detection step 7. Rotate the two second fixing blocks 18 so that the ends of the two second fixing blocks 18 that are close to each other contact the first horizontal bar 11 and the second horizontal bar 10 respectively. Use the second magnet to attract the two second fixing blocks 18 to the first horizontal bar 11 and the second horizontal bar 10 respectively, realize the connection between the longitudinal extension block 3 and the first horizontal bar 11 and the second horizontal bar 10, and ensure the stability of the longitudinal extension block 3 during the detection process.

[0029] Through the cooperation of the first slide rail 22 and the third slide rail, the longitudinal extension block 3 can slide along the length direction of the first crossbar 11 and the second crossbar 10, so that the longitudinal extension block 3 can be flush with the vertical edge of the detection steps 7 of different widths.

[0030] In some embodiments, the lateral extension assembly further includes a lateral extension plate 8, which is inverted U-shaped. The lateral extension plate 8 is disposed above the lateral extension block 2 and surrounds the outer side of the lateral extension block 2. A third slide rail 19 is provided on both side walls of the lateral extension block 2, and a fourth slide rail is provided on both inner walls of the lateral extension plate 8. A third magnet is provided at the bottom of the lateral extension plate 8 near the fixed plate 5.

[0031] When a rim 23 is provided on the door panel of the air-raid shelter door 1, the auxiliary tool is connected to the air-raid shelter door 1 by fixing bolt 4 and positioning bolt 14. The longitudinal extension block 3 is pushed so that the longitudinal extension block 3 is flush with the vertical edge of the detection step 7. The second fixing block 18 is rotated to connect the longitudinal extension block 3 with the first crossbar 11 and the second crossbar 10. The transverse extension plate 8 is pushed. With the cooperation of the third slide rail 19 and the fourth slide rail, the transverse extension plate 8 moves towards the air-raid shelter door 1 until the transverse extension plate 8 abuts against the air-raid shelter door 1. The third magnet ensures a stable contact between the transverse extension plate 8 and the air-raid shelter door 1. The sliding rod 24 is slid so that the sliding rod 24 drives the transverse extension block 2 and the transverse extension plate 8 to slide until the top plate of the transverse extension plate 8 contacts the horizontal edge of the detection step 7. This achieves the extension of the reference plane in two directions, ensuring the stability of the measurement reference and the accuracy of the measurement results.

[0032] During the sliding process of the horizontal extension plate 8, the third magnet slides along with the horizontal extension plate 8 to ensure the fit between the horizontal extension plate 8 and the air defense door 1, and to ensure the stability of the horizontal extension plate 8.

[0033] When there is an edge 23 on the air defense door 1 to be tested, the cooperation of the third slide rail 19 and the fourth slide rail allows the horizontal extension plate 8 to slide relative to the horizontal extension block 2, ensuring that the horizontal extension plate 8 can be close to the horizontal edge of the test step 7 of the air defense door 1.

[0034] In some embodiments, a first pressure plate 15 is provided at one end of the positioning bolt 14 near the fixing plate 5.

[0035] In some embodiments, a second pressure plate 16 is provided at the end of the fixing bolt 4 near the first vertical rod 13. The first pressure plate 16 reduces the pressure between the positioning bolt 14 and the air-raid shelter door 1, preventing deformation of the air-raid shelter door 1.

[0036] The pressure between the fixing bolt 4 and the air-raid shelter door 1 is reduced by the second pressure plate 16, so as to prevent the air-raid shelter door 1 from deforming.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those 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 to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary tool for inspecting corner welds on air-raid shelter doors, characterized in that, include: A lateral extension assembly includes a first vertical rod, a second vertical rod, and a connecting rod. The first vertical rod and the second vertical rod are spaced apart. The two ends of the connecting rod are respectively connected to one end of the first vertical rod and one end of the second vertical rod. A lateral extension component is slidably connected between the first vertical rod and the second vertical rod. Both the first vertical rod and the second vertical rod are provided with positioning threaded holes, and positioning bolts are provided in the positioning threaded holes. A fixing component includes a fixing plate, which is spaced apart from the connecting rod. The fixing plate has at least one fixing threaded hole, and a fixing bolt is installed in the fixing threaded hole. The longitudinal extension assembly includes a first crossbar and a second crossbar. One end of the first crossbar is connected to the end of the first vertical bar away from the connecting rod, and the other end of the first crossbar is connected to the fixing plate. One end of the second crossbar is connected to the end of the second vertical bar away from the connecting rod, and the other end of the second crossbar is connected to the fixing plate. A longitudinal extension member is slidably connected between the first crossbar and the second crossbar.

2. The auxiliary tool for inspecting corner welds of air-raid shelter doors according to claim 1, characterized in that, The longitudinal extension assembly further includes a slider, which is inverted U-shaped and surrounds the outside of the first and second crossbars. The bottom end of the slider is flush with the bottom ends of the first and second crossbars. A first slide rail is provided on each of the two inner walls of the slider. A first slide rail is provided on the side wall of the first and second crossbars that are away from each other. The fixing plate is connected to the end of the slider that is away from the first and second vertical bars. The longitudinal extension assembly is slidably connected between the first slide rail and the first crossbar.

3. The auxiliary tool for inspecting corner welds of air-raid shelter doors according to claim 1, characterized in that, The lateral extension member includes a slide rod and a lateral extension block. Both the first and second vertical rods are provided with vertical second slide tracks. The two ends of the slide rod are respectively disposed in the two second slide tracks. The lateral extension block is connected to the side wall of the slide rod away from the connecting rod. A rotating rod is rotatably connected to each end of the slide rod. The rotating rod extends outside the second slide track. A first fixing block is provided at the end of the rotating rod away from the slide rod. A first magnet is provided at the end of the first fixing block near the slide rod.

4. The auxiliary tool for inspecting corner welds of air-raid shelter doors according to claim 2, characterized in that, The longitudinal extension member includes a longitudinal extension block and a second fixing block. The top ends of the first crossbar and the second crossbar are provided with second slide rails. The bottom end of the longitudinal extension block is provided with a third slide rail that cooperates with the second slide rail. A second fixing block is rotatably connected to the side walls on both sides of the longitudinal extension block. A second magnet is provided on the inner side wall of the second fixing block.

5. The auxiliary tool for inspecting corner welds of air-raid shelter doors according to claim 3, characterized in that, The lateral extension assembly also includes a lateral extension plate, which is inverted U-shaped. The lateral extension plate is positioned above the lateral extension block and surrounds the outside of the lateral extension block. A third slide rail is provided on both side walls of the lateral extension block, and a fourth slide rail is provided on both inner walls of the lateral extension plate. A third magnet is provided at the bottom of the lateral extension plate near the fixed plate.

6. The auxiliary tool for inspecting corner welds of air-raid shelter doors according to claim 1, characterized in that, A first pressure plate is provided at the end of the positioning bolt near the fixing plate.

7. The auxiliary tool for inspecting corner welds of air-raid shelter doors according to claim 1, characterized in that, A second pressure plate is provided at the end of the fixing bolt near the first vertical rod.

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