A railway tunnel waterproof performance test detection device

Abstract

The utility model discloses a railway tunnel waterproof performance test detection device, including detection box, two groups of first connecting piece are fixedly connected to detection box upper portion, rotatory connection has the rotating shaft between first connecting piece, the rotating shaft middle part outside fixedly connected with first connecting block, the first connecting block upper portion fixedly connected with inner support rod, the outer support rod inside screw thread connection has the screw thread table, the screw thread table upper portion fixedly connected with inner support rod, four groups of wheels are connected to the detection box lower side pivot, the detection box lower side middle part fixedly connected with detection head, can detect the box close to the tunnel upper wall, and guarantee when detecting at different positions on the arc tunnel upper portion, support device can adjust to the suitable angle, improve the stability of support.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction, specifically a testing and detection device for the waterproof performance of railway tunnels. Background Technology

[0002] Currently, most tunnel defects are detected using ground-penetrating radar. During the construction of railway tunnels, waterproofing treatment is required, followed by waterproofing tests. After pressure testing, data observation and seepage observation are conducted on the pressure-tested areas.

[0003] Water seepage observation is inconvenient due to the high height of the tunnel ceiling. Usually, a person stands on an A-frame ladder and places the detector close to the top of the tunnel for detection. If a support rod is used to support the detection device, the angle of the support rod will be limited by the detection position due to the curvature of the tunnel ceiling. If the support rod is too tilted, it will cause the person to become too tired and affect the balance of the support device. Utility Model Content

[0004] The purpose of this invention is to provide a testing device for the waterproof performance of railway tunnels, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a testing device for the waterproof performance of railway tunnels, comprising a testing box, two sets of first connecting plates fixedly connected to the upper part of the testing box, a rotating shaft rotatably connected between the first connecting plates, a first connecting block fixedly connected to the outer side of the middle part of the rotating shaft, an inner support rod fixedly connected to the upper part of the first connecting block, a threaded platform threadedly connected inside the outer support rod, an inner support rod fixedly connected to the upper part of the threaded platform, four sets of wheels connected to the rotating shaft on the lower side of the testing box, and a probe fixedly connected to the middle of the lower side of the testing box.

[0006] Preferably, a limiting block is fixedly connected to one end of the rotating shaft, a movable piece is slidably connected to the outside of the limiting block, a toothed ring is fixedly connected to the side of the movable piece facing the first connecting piece, and a toothed groove for the toothed ring is opened on the outside of the first connecting piece.

[0007] Preferably, a fixing plate is fixedly connected to one end of the limiting block, and a spring is fixedly connected between the fixing plate and the moving plate, with the spring sleeved on the outside of the limiting block.

[0008] Preferably, a handle is fixedly connected to the upper part of the inner support rod, and a finger groove is provided on the outer side of the handle.

[0009] Preferably, a second connecting block is fixedly connected to both sides of the lower part of the outer support rod. Two sets of second connecting plates are connected to the outer shaft of the second connecting block. An outer balance rod is fixedly connected to the lower part of the second connecting plate. An inner balance rod is slidably connected to the lower inner side of the outer balance rod. A connecting plate is fixedly connected to the other end of the inner balance rod. Two sets of third connecting plates are fixedly connected to the other end of the connecting plate. A third connecting block is connected to the inner shaft of the third connecting plate. The third connecting block is fixedly connected to the upper part of the detection box. A set screw is threaded to the lower outer side of the outer balance rod.

[0010] Preferably, handles are fixedly connected to both sides of the upper part of the detection box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses wheels at the bottom of the detection box to press against the upper wall of the tunnel, and the probe head to detect the tunnel. By rotating the threaded table, the extension length of the inner support rod is changed, thereby supporting the detection box against the upper wall of the tunnel. By rotating the first connecting block around the first connecting piece, the detection box can be pressed tightly against the upper wall of the tunnel, and the support device can be adjusted to a suitable angle when detecting at different positions on the upper part of the arc tunnel, thus improving the stability of the support.

[0013] 2. In addition, when the outer support rod rotates left and right, the second connecting block drives the second connecting piece to rotate, and the second connecting piece drives one end of the outer balance rod to move. The inner balance rod slides along the inside of the outer balance rod and rotates around the third connecting block through the connecting plate and the third connecting piece. The set screw fixes the sliding of the inner balance rod, thereby supporting both sides of the detection box, improving the balance of the detection box, and facilitating the control of the detection box. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a second-view three-dimensional structural cross-sectional view of the present invention;

[0016] Figure 3 This is a third-view perspective three-dimensional structural cross-sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the fourth-view locking structure of this utility model.

[0018] In the diagram: 1. Detection box; 2. First connecting piece; 3. First connecting block; 4. Rotating shaft; 5. Outer support rod; 6. Threaded platform; 7. Inner support rod; 8. Second connecting block; 9. Second connecting piece; 10. Outer balance bar; 11. Inner balance bar; 12. Connecting plate; 13. Third connecting piece; 14. Third connecting block; 15. Set screw; 16. Handle; 17. Finger groove; 18. Handle; 19. Wheel; 20. Probe head; 21. Limiting block; 22. Fixing piece; 23. Moving piece; 24. Gear ring; 25. Gear groove; 26. Spring. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a testing device for the waterproof performance of railway tunnels, including a testing box 1. Two sets of first connecting plates 2 are fixedly welded to the upper part of the testing box 1. A rotating shaft 4 is rotatably installed between the first connecting plates 2. A first connecting block 3 is fixedly welded to the outer side of the middle part of the rotating shaft 4. An inner support rod 7 is fixedly welded to the upper part of the first connecting block 3. A threaded platform 6 is installed inside the outer support rod 5. The inner support rod 7 is fixedly welded to the upper part of the threaded platform 6. Four sets of wheels 19 are installed on the rotating shaft on the lower side of the testing box 1. A probe head 20 is fixedly welded to the middle of the lower side of the testing box 1. The wheels 19 at the lower part of the testing box 1 are in close contact with the upper wall of the tunnel. The probe head 20 detects the tunnel. By rotating the threaded platform 6, the extension length of the inner support rod 7 is changed, thereby supporting the testing box 1 against the upper wall of the tunnel. By rotating the first connecting block 3 around the first connecting plate 2, it is ensured that when the upper part of the tunnel has a curvature, the outer support rod 5 and the inner support rod 7 can be adjusted to a comfortable angle.

[0021] A limiting block 21 is fixedly welded to one end of the rotating shaft 4. A movable piece 23 is slidably installed on the outer side of the limiting block 21. A toothed ring 24 is fixedly welded to the side of the movable piece 23 facing the first connecting piece 2. A toothed groove 25 is opened on the outer side of the first connecting piece 2 to engage with the toothed ring 24. By inserting the toothed ring 24 into the toothed groove 25, the first connecting piece 2 ensures that the limiting block 21 cannot rotate through the toothed ring 24, thereby ensuring that the first connecting block 3 cannot rotate through the rotating shaft 4. A fixing piece 22 is fixedly welded to one end of the limiting block 21. A spring 26 is fixedly welded between the fixing piece 22 and the movable piece 23. The spring 26 is sleeved on the outer side of the limiting block 21. The spring 26 pushes the movable piece 23, preventing the toothed ring 24 from disengaging from the toothed groove 25. A handle 16 is fixedly welded to the upper part of the inner support rod 7. A finger groove 17 is opened on the outer side of the handle 16 for easy gripping. Second connecting blocks 8 are fixedly welded to both sides of the lower part of the outer support rod 5. Two sets of second connecting pieces 9 are installed on the outer side of the second connecting block 8. An outer balance rod 10 is fixedly welded to the lower part of the outer balance rod 10. An inner balance rod 11 is slidably installed on the inner side of the lower part of the outer balance rod 10. A connecting plate 12 is fixedly welded to the other end of the inner balance rod 11. Two sets of third connecting pieces 13 are fixedly welded to the other end of the connecting plate 12. A third connecting block 14 is connected to the inner shaft of the third connecting piece 13. The third connecting block 14 is fixedly welded to the upper part of the detection box 1. A set screw 15 is threaded on the outer side of the lower part of the outer balance rod 10. When the outer support rod 5 rotates left and right, it drives the second connecting piece 9 to rotate through the second connecting block 8. The second connecting piece 9 drives one end of the outer balance rod 10 to move. The inner balance rod 11 slides along the inner side of the outer balance rod 10 and rotates around the third connecting block 14 through the connecting plate 12 and the third connecting piece 13. The set screw 15 fixes the sliding of the inner balance rod 11, thereby supporting both sides of the detection box 1 and improving the balance of the detection box 1. Handles 18 are fixedly welded to both sides of the upper part of the detection box 1 for easy direct control of the detection box 1 and for detection of low-lying areas.

[0022] Working principle: In use, the wheel 19 at the bottom of the detection box 1 is pressed against the upper wall of the tunnel, and the probe head 20 detects the tunnel. By rotating the threaded platform 6, the extension length of the inner support rod 7 is changed, thereby supporting the detection box 1 against the upper wall of the tunnel. The first connecting block 3 rotates around the first connecting piece 2 to ensure that the outer support rod 5 and the inner support rod 7 can be adjusted to a comfortable angle when the upper part of the tunnel has an arc. When the outer support rod 5 rotates left and right, the second connecting block 8 drives the second connecting piece 9 to rotate. The second connecting piece 9 drives one end of the outer balance rod 10 to move, and the inner balance rod 11 slides along the inside of the outer balance rod 10. It rotates around the third connecting block 14 through the connecting plate 12 and the third connecting piece 13. The set screw 15 fixes the sliding of the inner balance rod 11, thereby supporting both sides of the detection box 1 and improving the balance of the detection box 1.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for the waterproof performance of railway tunnels, comprising a testing box (1), characterized in that: The detection box (1) is fixedly connected to two sets of first connecting pieces (2) on the upper part. A rotating shaft (4) is rotatably connected between the first connecting pieces (2). A first connecting block (3) is fixedly connected to the outer side of the middle part of the rotating shaft (4). An inner support rod (7) is fixedly connected to the upper part of the first connecting block (3). A threaded platform (6) is threaded inside the outer support rod (5). An inner support rod (7) is fixedly connected to the upper part of the threaded platform (6). Four sets of wheels (19) are connected to the rotating shaft on the lower side of the detection box (1). A probe head (20) is fixedly connected to the middle of the lower side of the detection box (1).

2. The testing device for waterproof performance of railway tunnels according to claim 1, characterized in that: One end of the rotating shaft (4) is fixedly connected to a limiting block (21), and a movable piece (23) is slidably connected to the outside of the limiting block (21). A toothed ring (24) is fixedly connected to the side of the movable piece (23) facing the first connecting piece (2). A toothed groove (25) for the toothed ring (24) is opened on the outside of the first connecting piece (2).

3. The testing device for waterproof performance of railway tunnels according to claim 2, characterized in that: One end of the limiting block (21) is fixedly connected to a fixing piece (22), and a spring (26) is fixedly connected between the fixing piece (22) and the moving piece (23). The spring (26) is sleeved on the outside of the limiting block (21).

4. The testing device for waterproof performance of railway tunnels according to claim 1, characterized in that: The upper part of the inner support rod (7) is fixedly connected to a handle (16), and a finger groove (17) is provided on the outer side of the handle (16).

5. The testing device for waterproof performance of railway tunnels according to claim 1, characterized in that: The lower two sides of the outer support rod (5) are fixedly connected to the second connecting block (8). The outer side of the second connecting block (8) is connected to two sets of second connecting plates (9). The lower part of the second connecting plate (9) is fixedly connected to the outer balance rod (10). The lower inner side of the outer balance rod (10) is slidably connected to the inner balance rod (11). The other end of the inner balance rod (11) is fixedly connected to the connecting plate (12). The other end of the connecting plate (12) is fixedly connected to two sets of third connecting plates (13). The inner shaft of the third connecting plate (13) is connected to the third connecting block (14). The third connecting block (14) is fixedly connected to the upper part of the detection box (1). The lower outer side of the outer balance rod (10) is threadedly connected to the set screw (15).

6. The testing device for waterproof performance of railway tunnels according to claim 1, characterized in that: The detection box (1) has handles (18) fixedly connected to both sides of its upper part.

Images