Embedded fixing structure for strain monitoring points of foundation pit supporting structure

Abstract

An embedded fixing structure for a strain monitoring point of a foundation pit supporting structure belongs to the technical field of foundation pit supporting strain monitoring and comprises an embedded structure, a height adjusting structure and a monitoring structure, the monitoring structure comprises a protective frame, a sliding rail is fixedly mounted at the bottom of an inner cavity of the protective frame, and detachable baffles are mounted on two sides of the outer surface of the protective frame in a hinged manner; through the monitoring structure, when the device is used, the strain monitor can be used after being fixed at the top of the leveling platform and leveled, dustproof cloth rolls connected to the two sides of a connecting plate are located in a mounting groove, so that a sliding rail is sealed with the outside, and when the leveling platform is moved to enable a sliding block to slide on the sliding rail, the dustproof cloth rolls can be used conveniently. Due to the arrangement of the spring rollers, the dustproof cloth rolls have stretchability, so that the dustproof cloth rolls on the two sides can stretch or contract along with movement of the connecting plate, sealing of the sliding rail can be guaranteed all the time, the purpose of preventing gravel and dust from entering the sliding rail is achieved, and the situation that due to long-term abrasion, key precision indexes such as straightness and parallelism of the sliding rail are reduced is avoided.

Description

Technical Field

[0001] This invention relates to the field of strain monitoring technology for foundation pit support, specifically to an embedded fixed structure for strain monitoring points in foundation pit support structures. Background Technology

[0002] Foundation pit engineering is a systematic project integrating geological engineering, geotechnical engineering, structural engineering, and geotechnical testing technology. Its main contents include: engineering survey, support structure design and construction, earthwork excavation and backfilling, groundwater control, information-based construction, and surrounding environmental protection. The simplest and most economical method for foundation pit construction is wide-slope excavation, but this is often limited by site conditions and the surrounding environment. Therefore, a support system needs to be designed to ensure smooth construction and better protect the surrounding environment. A strain gauge is a device used to measure the strain of an object, converting deformation into an electrical signal for monitoring through changes in resistance, capacitance, or inductance.

[0003] Existing strain monitoring equipment used in foundation pit support structures has certain shortcomings in actual use: existing strain monitoring equipment adjusts the position of the equipment by means of a slide rail during use. However, the foundation pit support environment is relatively complex, and wind and sand may enter the slide rail groove, causing wear of the slide rail casing and affecting the use effect. Based on the shortcomings of existing technology, this invention designs an embedded fixing structure for strain monitoring points in foundation pit support structures. Summary of the Invention

[0004] This invention provides an embedded fixing structure for strain monitoring points in foundation pit support structures, which has the advantage of preventing sand and dust from entering the slide rail and solves the problems mentioned in the background art.

[0005] This invention provides the following technical solution: an embedded fixing structure for strain monitoring points in a foundation pit support structure, comprising an embedded structure, a height adjustment structure, and a monitoring structure. The monitoring structure includes a protective frame, with a slide rail fixedly installed at the bottom of the inner cavity of the protective frame, and detachable baffles hinged to both sides of the outer surface of the protective frame. Installation grooves are provided on both sides of the inner interior of the protective frame, and a partition plate is fixedly installed inside the protective frame. Two sets of spring rollers are rotatably installed on both sides of the inner interior of the protective frame, and dustproof cloth rolls are wound onto the outer surfaces of the two sets of spring rollers. Slider blocks are slidably installed on both sides of the outer surface of the slide rail, and connecting plates are fixedly installed on the tops of the two sliders. The two sides of the two connecting plates are fixedly connected to the ends of the two sets of dustproof cloth rolls. Adjustment platforms are fixedly installed on the tops of the two connecting plates, and strain monitoring instruments are fixedly installed on the tops of the two adjustment platforms.

[0006] As a preferred embodiment of the present invention, the embedded structure includes a pre-embedded pile, which can be fixed to the pre-embedded point by bolts.

[0007] As a preferred embodiment of the present invention, a first connecting plate is fitted on one side of the interior of the pre-embedded pile, and a second connecting plate is fitted on the other side of the interior of the pre-embedded pile.

[0008] As a preferred embodiment of the present invention, the height adjustment structure includes a mounting plate located inside the pre-embedded pile, and a sleeve is fixedly installed on the top of the mounting plate.

[0009] As a preferred embodiment of the present invention, a controller is fixedly installed on the outer surface of the sleeve, and two connecting wires are fixedly installed inside the controller.

[0010] As a preferred embodiment of the present invention, the top end of the two connecting lines is fixedly connected to the strain monitoring instrument, and the length of the two connecting lines can be flexibly selected.

[0011] As a preferred embodiment of the present invention, a support plate is fixedly installed inside the sleeve, and a threaded rod is rotatably installed inside the support plate, the threaded rod being rotatably connected to the sleeve.

[0012] As a preferred embodiment of the present invention, a rotating rod is rotatably mounted inside the sleeve, and a second bevel gear is fixedly mounted at the end of the rotating rod.

[0013] As a preferred embodiment of the present invention, a first bevel gear is fixedly mounted on the outer surface of the threaded rod, and the outer surface of the first bevel gear meshes with the outer surface of the second bevel gear.

[0014] As a preferred embodiment of the present invention, a sleeve is threadedly installed on the outer surface of the threaded rod, the sleeve is movably connected to the sleeve, and a clamping plate is fixedly installed on the top of the sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The foundation pit support structure features an embedded fixed structure for strain monitoring points. During operation, the strain monitor is fixed to the top of the adjustment platform and leveled. Because the dustproof cloth rolls connected to both sides of the connecting plate are located inside the mounting groove, the slide rail is sealed from the outside environment. Therefore, when the adjustment platform is moved and the slider slides on the slide rail, the dustproof cloth rolls, due to the spring roller's tension, will stretch or contract along with the movement of the connecting plate. This ensures the slide rail remains sealed, preventing sand and dust from entering and thus avoiding long-term wear that could reduce key accuracy indicators such as the straightness and parallelism of the slide rail. 2. The embedded fixed structure of the strain monitoring point of the foundation pit support structure has a height adjustment structure. When the device is in use, the rotating rod can be rotated to drive the second bevel gear to rotate. Since the outer surfaces of the second bevel gear and the first bevel gear mesh with each other, the first bevel gear can drive the threaded rod to rotate. Due to the limitation of the sleeve, when the threaded rod rotates, the sleeve can move horizontally up and down on the outer surface of the threaded rod. This allows the clamping plate to drive the monitoring structure to adjust its height, improving the flexibility of the device. 3. The embedded fixing structure for strain monitoring points of the foundation pit support structure allows for the pre-embedded piles to be pre-embedded at the strain monitoring positions during device use. After being fixed with bolts, the mounting plate is placed inside the pre-embedded pile for fixation. Subsequently, the first and second connecting plates are inserted into the pre-embedded pile for sealing and fixation. This embedded installation can improve the overall stability of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the embedded structure of the present invention; Figure 3 This is a schematic diagram of the height adjustment structure of the present invention; Figure 4 This is a schematic cross-sectional view of the height adjustment structure of the present invention; Figure 5 This is a schematic diagram of the protective frame structure of the present invention; Figure 6 This is a schematic diagram of the slide rail structure of the present invention; Figure 7 This is a schematic diagram of the slider structure of the present invention; Figure 8 This is a schematic diagram of the connecting plate structure of the present invention.

[0017] In the diagram: 1. Embedded structure; 101. Pre-embedded pile; 102. First docking plate; 103. Second docking plate; 2. Height adjustment structure; 21. Mounting plate; 22. Sleeve; 23. Controller; 24. Connecting line; 25. Support plate; 26. Threaded rod; 27. Sleeve column; 28. Mounting plate; 29. ​​First bevel gear; 210. Rotating rod; 211. Second bevel gear; 3. Monitoring structure; 31. Protective frame; 32. Slide rail; 33. Mounting groove; 34. Divider plate; 35. Spring roller; 36. Dustproof cloth roll; 37. Slider; 38. Connecting plate; 39. Adjustment platform; 310. Strain monitoring instrument. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-8 The embedded fixed structure for strain monitoring points of the foundation pit support structure includes an embedded structure 1, a height adjustment structure 2, and a monitoring structure 3. The monitoring structure 3 includes a protective frame 31. A slide rail 32 is fixedly installed at the bottom of the inner cavity of the protective frame 31. Removable baffles are hinged to both sides of the outer surface of the protective frame 31. Mounting grooves 33 are opened on both sides inside the protective frame 31. A partition plate 34 is fixedly installed inside the protective frame 31. Two sets of spring rollers 35 are rotatably installed on both sides inside the protective frame 31. Dustproof cloth rolls 36 are wound on the outer surface of the two sets of spring rollers 35. Sliding sliders 37 are slidably installed on both sides of the outer surface of the slide rail 32. Connecting plates 38 are fixedly installed on the top of the two sliders 37. The two sides of the two connecting plates 38 are fixedly connected to the ends of the two sets of dustproof cloth rolls 36. Adjustment platforms 39 are fixedly installed on the top of the two connecting plates 38. Strain monitoring instruments 310 are fixedly installed on the top of the two adjustment platforms 39.

[0020] Please see Figure 1-2 The embedded structure 1 includes a pre-embedded pile 101, which can be fixed to the pre-embedded point by bolts. A first connecting plate 102 is installed on one side of the interior of the pre-embedded pile 101, and a second connecting plate 103 is installed on the other side of the interior of the pre-embedded pile 101.

[0021] When the device is in use, the pre-embedded pile 101 is pre-embedded at the strain monitoring position and fixed with bolts. Then, the mounting plate 21 is placed inside the pre-embedded pile 101 and fixed. Subsequently, the first docking plate 102 and the second docking plate 103 are inserted into the pre-embedded pile 101 and sealed and fixed.

[0022] Please see Figure 3-4The height adjustment structure 2 includes a mounting plate 21 located inside the pre-embedded pile 101. A sleeve 22 is fixedly mounted on the top of the mounting plate 21. A controller 23 is fixedly mounted on the outer surface of the sleeve 22, and two connecting wires 24 are fixedly mounted inside the controller 23. One end of each connecting wire 24 is fixedly connected to a strain monitoring instrument 310, and the lengths of the two connecting wires 24 can be flexibly selected. A support plate 25 is fixedly mounted inside the sleeve 22, and a threaded rod 26 is rotatably mounted inside the support plate 25, rotatably connected to the sleeve 22. A rotating rod 210 is rotatably mounted inside the sleeve 22, and a second bevel gear 211 is fixedly mounted at the end of the rotating rod 210. A first bevel gear 29 is fixedly mounted on the outer surface of the threaded rod 26, and the outer surface of the first bevel gear 29 meshes with the outer surface of the second bevel gear 211. A sleeve post 27 is threadedly mounted on the outer surface of the threaded rod 26, movably connected to the sleeve 22, and a clamping plate 28 is fixedly mounted on the top of the sleeve post 27.

[0023] When the device is in use, the rotating rod 210 can be rotated to drive the second bevel gear 211 to rotate. Since the second bevel gear 211 meshes with the outer surface of the first bevel gear 29, the first bevel gear 29 can drive the threaded rod 26 to rotate. Due to the limiting of the sleeve 22, when the threaded rod 26 rotates, the sleeve 27 can move horizontally up and down on the outer surface of the threaded rod 26, thereby allowing the mounting plate 28 to drive the monitoring structure 3 to adjust its height.

[0024] Working principle: When the embedded fixing structure for strain monitoring points in the foundation pit support structure is used, the pre-embedded pile 101 is first pre-embedded at the strain monitoring position and fixed with bolts. Then, the mounting plate 21 is placed inside the pre-embedded pile 101 for fixation. Subsequently, the first mating plate 102 and the second mating plate 103 are inserted into the pre-embedded pile 101 for sealing and fixation. When the device is in use, the rotating rod 210 can be rotated to drive the second bevel gear 211 to rotate. Since the outer surfaces of the second bevel gear 211 and the first bevel gear 29 mesh with each other, the first bevel gear 29 can drive the threaded rod 26 to rotate. Due to the limiting of the sleeve 22, when the threaded rod 26 rotates, the sleeve 27 can be positioned within the threaded rod. The outer surface of 26 moves horizontally up and down, thereby allowing the mounting plate 28 to drive the monitoring structure 3 to adjust its height. Finally, the strain monitor 310 can be used after being fixed to the top of the adjustment platform 39 and leveled. Since the dustproof cloth rolls 36 connected to both sides of the connecting plate 38 are located inside the mounting groove 33, the slide rail 32 is sealed from the outside. Therefore, when the adjustment platform 39 is moved and the slider 37 slides on the slide rail 32, the dustproof cloth rolls 36 are stretchable due to the setting of the spring roller 35. Thus, the dustproof cloth rolls 36 on both sides will stretch or contract with the movement of the connecting plate 38, thereby ensuring the sealing of the slide rail 32 and avoiding long-term wear from reducing key accuracy indicators such as the straightness and parallelism of the slide rail.

[0025] 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.

[0026] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An embedded fixed structure for strain monitoring points in a foundation pit support structure, comprising an embedded structure (1), a height adjustment structure (2), and a monitoring structure (3), characterized in that: The monitoring structure (3) includes a protective frame (31), a slide rail (32) is fixedly installed at the bottom of the inner cavity of the protective frame (31), and detachable baffles are hinged to both sides of the outer surface of the protective frame (31). The protective frame (31) has mounting grooves (33) on both sides inside. A partition plate (34) is fixedly installed inside the protective frame (31). Two sets of spring rollers (35) are rotatably installed on both sides inside the protective frame (31). Dustproof cloth rolls (36) are wound on the outer surfaces of the two sets of spring rollers (35). Slider blocks (37) are slidably installed on both sides of the outer surface of the slide rail (32). Connecting plates (38) are fixedly installed on the top of the two sliders (37). The two sides of the two connecting plates (38) are fixedly connected to the ends of the two sets of dustproof cloth rolls (36). Adjustment platforms (39) are fixedly installed on the top of the two connecting plates (38). Strain monitoring instruments (310) are fixedly installed on the top of the two adjustment platforms (39).

2. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 1, characterized in that: The embedded structure (1) includes a pre-embedded pile (101), which can be fixed to the pre-embedded point by bolts.

3. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 2, characterized in that: The first connecting plate (102) is installed on one side of the interior of the pre-embedded pile (101), and the second connecting plate (103) is installed on the other side of the interior of the pre-embedded pile (101).

4. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 1, characterized in that: The height adjustment structure (2) includes a mounting plate (21) located inside the pre-embedded pile (101), and a sleeve (22) is fixedly installed on the top of the mounting plate (21).

5. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 4, characterized in that: A controller (23) is fixedly installed on the outer surface of the sleeve (22), and two connecting wires (24) are fixedly installed inside the controller (23).

6. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 5, characterized in that: The top end of the two connecting lines (24) is fixedly connected to the strain monitoring instrument (310), and the length of the two connecting lines (24) can be flexibly selected.

7. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 4, characterized in that: A support plate (25) is fixedly installed inside the sleeve (22), and a threaded rod (26) is rotatably installed inside the support plate (25). The threaded rod (26) is rotatably connected to the sleeve (22).

8. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 4, characterized in that: A rotating rod (210) is rotatably mounted inside the sleeve (22), and a second bevel gear (211) is fixedly mounted at the end of the rotating rod (210).

9. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 7, characterized in that: The outer surface of the threaded rod (26) is fixedly mounted with a first bevel gear (29), and the outer surface of the first bevel gear (29) meshes with the outer surface of the second bevel gear (211).

10. The embedded fixing structure for strain monitoring points in the foundation pit support structure according to claim 7, characterized in that: The outer surface of the threaded rod (26) is threaded with a sleeve (27), which is movably connected to the sleeve (22). A clamping plate (28) is fixedly installed on the top of the sleeve (27).

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