A measuring device for bridge and tunnel construction

Abstract

The utility model relates to bridge tunnel construction technical field, and disclose a kind of surveying device for bridge tunnel construction, including measuring rod, the bottom fixedly connected with the fixed plate of symmetrical distribution of measuring rod, the front side of measuring rod is equipped with receiving slot, the inner wall sliding connection of receiving slot has scale board, the top of scale board is equipped with thread limiting hole, the top of measuring rod is equipped with through slot, and through slot is communicated with receiving slot, the inner wall sliding connection of through slot has the pull plate of scale board fixed connection, before use, rotation limiting stud, so that limiting stud and the thread limiting hole located outside are separated, so that scale board extends receiving slot, when scale board drives pull plate to move, so that pull plate and support plate abut, rotation limiting stud makes limiting stud enter thread limiting hole, it can limit scale board, use, realize the storage and use of scale board, avoid scale board exposure to cause scale line wear and tear.

Description

Technical Field

[0001] This utility model relates to the field of bridge and tunnel construction technology, and more specifically, to a measuring device for bridge and tunnel construction. Background Technology

[0002] A bridge generally refers to a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also been extended to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient. A bridge typically consists of a superstructure, substructure, supports, and ancillary structures. The superstructure, also known as the bridge span structure, is the main structure that crosses obstacles; the substructure includes abutments, piers, and foundations; supports are force-transmitting devices installed at the support points between the bridge span structure and the piers or abutments; and ancillary structures include approach slabs, tapered slopes, revetments, and diversion works. Tunnels, as man-made engineering structures that penetrate a medium, are an important technological means for humankind to overcome geological and spatial limitations.

[0003] This application addresses the improvement of existing technologies. In existing technologies, it is necessary to measure materials during bridge and tunnel construction. In existing measuring devices used for bridge and tunnel construction, the scale plate is generally exposed to the outside. When not in use or during transportation, the scale lines on it are easily worn, resulting in blurred scale lines and inconvenience in reading. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a measuring device for bridge and tunnel construction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a measuring device for bridge and tunnel construction, comprising a measuring rod, a fixed plate symmetrically distributed at the bottom of the measuring rod, a receiving groove on the front side of the measuring rod, a scale plate slidably connected to the inner wall of the receiving groove, two threaded limiting holes at the top of the scale plate, a through groove at the top of the measuring rod communicating with the receiving groove, a pull plate fixedly connected to the scale plate slidably connected to the inner wall of the through groove, a support plate abutting the front side of the pull plate, the support plate being fixedly connected to the inner wall of the through groove, a limiting stud threadedly connected to the support plate, the limiting stud being adapted to the threaded limiting hole, a movable seat movably installed inside the measuring rod, a movable plate fixedly connected to the bottom of the movable seat, and a scale rod fixedly connected to the front side of the movable plate.

[0006] As a preferred technical solution of this utility model, guide grooves are provided on both sides of the scale plate, and guide posts are slidably connected to the inner wall of the guide grooves, and the guide posts are fixedly connected to the inner wall of the storage groove.

[0007] As a preferred embodiment of this utility model, a first spring is sleeved on the outside of the guide post, one end of the first spring is fixedly connected to the scale plate, and the other end of the first spring is fixedly connected to the inner wall of the storage groove.

[0008] As a preferred technical solution of this utility model, the measuring rod is provided with a first sliding groove and a second sliding groove. The width of the first sliding groove is greater than the width of the second sliding groove, and the second sliding groove is adapted to the movable seat. The first sliding groove and the second sliding groove are connected. A guide rod is provided below the measuring rod. The guide rod is fixedly connected to the fixed plate, and the outer wall of the guide rod is slidably connected to the movable plate.

[0009] As a preferred embodiment of this utility model, the movable seat is slidably connected to both sides with symmetrically distributed movable blocks, and a second spring is fixedly connected between the two sets of movable blocks.

[0010] As a preferred embodiment of this utility model, the top of the movable seat is provided with symmetrically distributed connecting grooves, and the inner wall of the connecting groove is slidably connected with a pull rod, which is fixedly connected to the movable block.

[0011] As a preferred embodiment of this utility model, ball bearings are installed on the sides of the two movable blocks that are far apart from each other, and the ball bearings are in rolling connection with the inner wall of the first groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, before use, rotate the limiting stud to disengage it from the threaded limiting hole on the outer side. At this time, the first spring resets, causing the scale plate to reset and extend out of the storage groove. When the scale plate moves the pull plate, causing the pull plate to abut against the support plate, the limiting stud and a threaded limiting hole on the inner side are on the same straight line. Rotating the limiting stud allows it to enter the threaded limiting hole, thus limiting the scale plate for use. When storing, rotate the limiting stud to disengage it from the threaded limiting hole. The first spring resets, causing the scale plate to reset and move the pull plate, causing it to abut against the inner wall of one side of the through groove. The limiting stud and a threaded limiting hole on the outer side are on the same straight line, allowing the limiting stud to enter the threaded limiting hole and limit the scale plate, thus realizing the storage and use of the scale plate and preventing the scale plate from being exposed and causing wear on the scale lines. 2. In this utility model, when measuring shorter materials, the sliding movable plate moves the movable seat. The restoring force of the second spring causes the ball to contact the inner wall of the first slide groove. When the movable seat moves, the ball rolls in the first slide groove, facilitating the movement of the movable seat. Then, the scale on the scale plate is read through the scale rod. When measuring longer materials, the pull rod is pulled, causing the two pull rods to move closer to each other, thereby causing the movable block to enter the movable seat. Pushing the movable seat allows it to enter the second slide groove, facilitating measurement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the measuring rod of this utility model; Figure 3 This is a schematic diagram of the movable seat structure of this utility model; Figure 4 In this utility model Figure 1 Enlarged view of point A; Figure 5 In this utility model Figure 2 Enlarged view of point B.

[0014] In the diagram: 1. Measuring rod; 2. Fixed plate; 3. Guide rod; 4. Movable plate; 5. Scale rod; 6. Movable seat; 7. First slide groove; 8. Second slide groove; 9. Scale plate; 10. Threaded limiting hole; 11. Storage groove; 12. Through groove; 13. Support plate; 14. Limiting stud; 15. Pull plate; 16. Guide groove; 17. Guide post; 18. First spring; 19. Movable block; 20. Second spring; 21. Ball bearing; 22. Connecting groove; 23. Pull rod. Detailed Implementation

[0015] 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.

[0016] like Figures 1 to 5As shown, this utility model provides a measuring device for bridge and tunnel construction, including a measuring rod 1. A symmetrically distributed fixing plate 2 is fixedly connected to the bottom of the measuring rod 1. A receiving groove 11 is provided on the front side of the measuring rod 1. A scale plate 9 is slidably connected to the inner wall of the receiving groove 11. Two threaded limiting holes 10 are provided on the top of the scale plate 9. A through groove 12 is provided on the top of the measuring rod 1, and the through groove 12 communicates with the receiving groove 11. A pull plate 15, which is fixedly connected to the scale plate 9, is slidably connected to the inner wall of the through groove 12. The front side of the pull plate 15 abuts against the support plate 13, and the support plate 13 is fixedly connected to the inner wall of the through groove 12. The support plate 13 is threadedly connected to the limit stud 14, and the limit stud 14 is adapted to the threaded limit hole 10. The measuring rod 1 is movably installed with a movable seat 6. The bottom of the movable seat 6 is fixedly connected to a movable plate 4. The front side of the movable plate 4 is fixedly connected to a scale rod 5. The scale plate 9 is easy to store by cooperating with the limit stud 14 through the threaded limit hole 10, so as to avoid the scale lines on the scale plate 9 from being worn when not in use, resulting in unclear readings.

[0017] The scale plate 9 has guide grooves 16 on both sides. The inner wall of the guide groove 16 is slidably connected to the guide post 17, and the guide post 17 is fixedly connected to the inner wall of the storage groove 11. The movement of the scale plate 9 is guided by the guide post 17 and the guide groove 16.

[0018] The guide post 17 is sleeved with a first spring 18. One end of the first spring 18 is fixedly connected to the scale plate 9, and the other end of the first spring 18 is fixedly connected to the inner wall of the storage groove 11. When the scale plate 9 can be stored, the first spring 18 allows it to quickly enter the storage groove 11.

[0019] The measuring rod 1 has a first sliding groove 7 and a second sliding groove 8. The width of the first sliding groove 7 is greater than the width of the second sliding groove 8, and the second sliding groove 8 is adapted to the movable seat 6. The first sliding groove 7 and the second sliding groove 8 are connected. A guide rod 3 is provided below the measuring rod 1. The guide rod 3 is fixedly connected to the fixed plate 2, and the outer wall of the guide rod 3 is slidably connected to the movable plate 4. The movement of the movable plate 4 and the movable seat 6 is guided by the first sliding groove 7, the second sliding groove 8 and the fixed plate 2.

[0020] The movable seat 6 is slidably connected to two sides with symmetrically distributed movable blocks 19. A second spring 20 is fixedly connected between the two sets of movable blocks 19. The second spring 20 facilitates the movement and reset of the movable blocks 19, and allows the movable seat 6 to enter the second slide groove 8.

[0021] The top of the movable seat 6 is provided with symmetrically distributed connecting grooves 22. A pull rod 23 is slidably connected to the inner wall of the connecting groove 22, and the pull rod 23 is fixedly connected to the movable block 19. The movable block 19 can be easily moved by the pull rod 23.

[0022] In this configuration, ball bearings 21 are installed on the opposite sides of the two movable blocks 19, and the ball bearings 21 are in rolling contact with the inner wall of the first slide groove 7. The second spring 20 facilitates the movement of the movable seat 6 within the first slide groove 7 and the second slide groove 8.

[0023] Working principle and usage process of this utility model: In this application, before use, the limiting stud 14 is rotated to disengage it from the threaded limiting hole 10 located on the outer side. At this time, the first spring 18 resets, causing the scale plate 9 to reset and extend out of the receiving groove 11. When the scale plate 9 moves the pull plate 15, causing the pull plate 15 to abut against the support plate 13, the limiting stud 14 and the threaded limiting hole 10 located on the inner side are aligned on the same straight line. Rotating the limiting stud 14 allows it to enter the threaded limiting hole 10, thus limiting the scale plate 9. When in use or for storage, rotating the limiting stud 14 disengages it from the threaded limiting hole 10. The first spring 18 resets, causing the scale plate 9 to reset, which in turn moves the pull plate 15, making it abut against the inner wall of one side of the through groove 12. The limiting stud 14 and the threaded limiting hole 10 located on the outer side are on the same straight line. The limiting stud 14 can enter the threaded limiting hole 10 to limit the scale plate 9, thus enabling the scale plate 9 to be stored and used, and preventing the scale plate 9 from being exposed and causing wear on the scale lines. In this application, when measuring shorter materials, the sliding movable plate 4 moves the movable seat 6. The restoring force of the second spring 20 causes the ball 21 to contact the inner wall of the first slide groove 7. When the movable seat 6 moves, the ball 21 rolls in the first slide groove 7, facilitating the movement of the movable seat 6. Then, the scale on the scale plate 9 is read through the scale rod 5. When measuring longer materials, the pull rod 23 is pulled, causing the two pull rods 23 to move closer to each other, thereby causing the movable block 19 to enter the movable seat 6. Pushing the movable seat 6 allows it to enter the second slide groove 8, facilitating measurement.

[0024] 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.

[0025] 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 measuring device for bridge and tunnel construction, comprising a measuring rod (1), characterized in that: The bottom of the measuring rod (1) is fixedly connected to symmetrically distributed fixing plates (2). A storage groove (11) is provided on the front side of the measuring rod (1). A scale plate (9) is slidably connected to the inner wall of the storage groove (11). A threaded limiting hole (10) is provided on the top of the scale plate (9), and there are two threaded limiting holes (10). A through groove (12) is provided on the top of the measuring rod (1), and the through groove (12) is connected to the storage groove (11). The inner wall of the through groove (12) is slidably connected to the scale plate (9). A pull plate (15) is fixedly connected to the measuring plate (9). The front side of the pull plate (15) abuts against a support plate (13), and the support plate (13) is fixedly connected to the inner wall of the through groove (12). A limit stud (14) is threadedly connected to the support plate (13), and the limit stud (14) is adapted to the threaded limit hole (10). A movable seat (6) is movably installed inside the measuring rod (1). A movable plate (4) is fixedly connected to the bottom of the movable seat (6), and a scale rod (5) is fixedly connected to the front side of the movable plate (4).

2. The measuring device for bridge and tunnel construction according to claim 1, characterized in that: Guide grooves (16) are provided on both sides of the scale plate (9). Guide posts (17) are slidably connected to the inner wall of the guide grooves (16), and the guide posts (17) are fixedly connected to the inner wall of the storage groove (11).

3. A measuring device for bridge and tunnel construction according to claim 2, characterized in that: The guide post (17) is fitted with a first spring (18), one end of the first spring (18) is fixedly connected to the scale plate (9), and the other end of the first spring (18) is fixedly connected to the inner wall of the storage groove (11).

4. The measuring device for bridge and tunnel construction according to claim 1, characterized in that: The measuring rod (1) is provided with a first groove (7) and a second groove (8). The width of the first groove (7) is greater than the width of the second groove (8), and the second groove (8) is adapted to the movable seat (6). The first groove (7) and the second groove (8) are connected. A guide rod (3) is provided below the measuring rod (1). The guide rod (3) is fixedly connected to the fixed plate (2), and the outer wall of the guide rod (3) is slidably connected to the movable plate (4).

5. A measuring device for bridge and tunnel construction according to claim 1, characterized in that: The movable seat (6) is slidably connected to two sides of symmetrically distributed movable blocks (19), and a second spring (20) is fixedly connected between the two sets of movable blocks (19).

6. A measuring device for bridge and tunnel construction according to claim 1, characterized in that: The top of the movable seat (6) is provided with symmetrically distributed connecting grooves (22), and the inner wall of the connecting groove (22) is slidably connected with a pull rod (23), and the pull rod (23) is fixedly connected to the movable block (19).

7. A measuring device for bridge and tunnel construction according to claim 5, characterized in that: Both of the two movable blocks (19) are equipped with ball bearings (21) on the side away from each other, and the ball bearings (21) are in rolling connection with the inner wall of the first groove (7).

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