A guide wall trench excavation positioning measuring device

Abstract

The application relates to a guide wall groove excavation positioning measuring device, belonging to the field of civil construction, which comprises a placing frame, the placing frame is placed on the ground and located at the groove opening of the groove, two laser levels are arranged on the placing frame, and a single laser level is used for calibrating one groove wall of the groove. In the process of groove excavation, the laser level is used for real-time excavation guidance of the groove wall surface, so that the planeness precision of the groove wall, the groove width size precision and the angle precision of the transverse extension direction of the groove are improved.

Description

Technical Field

[0001] This application relates to the field of civil engineering construction, and in particular to a positioning and measuring device for guide wall trench excavation. Background Technology

[0002] Guide walls refer to the side formwork of diaphragm walls. They serve a guiding role, controlling the scope and orientation of the diaphragm wall trench. The trench is formed by directional excavation using an excavator. Parameters such as the excavation width, depth, and trench extension direction are key indicators of trench quality and have a significant impact on subsequent diaphragm wall construction.

[0003] In related technologies, when excavating trenches with an excavator, the width range of the trench and the straightness of the trench opening are measured by marking lines on the ground. During excavation, the trench depth and direction are continuously and intermittently measured manually and then adjusted based on feedback. This process is laborious and has low accuracy. Utility Model Content

[0004] To address the aforementioned issues, this application provides a guide wall trench excavation positioning and measuring device.

[0005] The technical solution of the guide wall trench excavation positioning and measuring device provided in this application is as follows:

[0006] A guide wall trench excavation positioning and measuring device includes a placement frame, which is placed on the ground and located at the trench opening. The placement frame is equipped with two laser levels, each of which is used to calibrate one of the trench walls.

[0007] Preferably, the placement frame includes a placement beam and two support rods. The laser level is located on the upper side of the placement beam. The support rods are connected to the placement beam. One end of each support rod is provided with a contact component that abuts against the ground. The contact component is used to adjust the distance between the support rod and the ground.

[0008] Preferably, the contact assembly includes a fixed frame and an extension block. The fixed frame is fixedly connected to the support rod, and the extension block is slidably connected to the fixed frame. The sliding direction is parallel to the length direction of the support rod. The extension block is in direct contact with the ground. The contact assembly also includes a fixing member that fixes the fixed frame and the extension block relative to each other.

[0009] Preferably, the fasteners are an extension bolt and an extension nut that are threaded together, and the fastener and the extension block are provided with extension waist-shaped holes for the extension bolt to pass through.

[0010] Preferably, the placement beam has an adjustable waist-shaped hole, the length direction of the adjustable waist-shaped hole is parallel to the length direction of the placement beam, and the depth direction of the hole is vertical. The adjustable waist-shaped hole allows the support rod to pass through, and the support rod is threaded with two adjusting nuts, which respectively abut against the upper and lower sides of the placement beam.

[0011] Preferably, a measuring telescopic rod is fixedly connected to the lower side of the placement beam. The length direction and the direction of telescopic deformation of the measuring telescopic rod are both vertical, and the measuring telescopic rod is located in the trench.

[0012] Preferably, the placement beam is made of square steel tubing, and a mounting channel steel is fixedly connected to the bottom of the laser level, with the mounting channel steel straddling the placement beam.

[0013] Preferably, the placement beam is provided with positioning scale, and the distance measurement direction of the positioning scale is the length direction of the placement beam.

[0014] This application includes at least one of the following beneficial technical effects:

[0015] 1. By setting up a laser level, the laser level is placed on a mounting frame and emits vertical light, making the plane of the light line flush with the trench wall, providing real-time operation guidance for the excavator performing trenching, thereby improving the width of the excavated trench and the accuracy of its extension direction;

[0016] 2. By measuring the extension rod, which extends into the trench along its depth direction, the depth of the trench bottom can be visually displayed. Attached Figure Description

[0017] Figure 1 This is a construction plan view used in the embodiments of this application to illustrate the construction site during trench excavation.

[0018] Figure 2 This is a cross-sectional view of the structure of the guide wall trench excavation positioning and measuring device at the trench opening during trench excavation, as shown in the embodiments of this application.

[0019] Figure 3 This is a schematic diagram of the overall structure of the guide wall trench excavation positioning and measuring device in the embodiments of this application.

[0020] Explanation of reference numerals in the attached drawings: 1. Groove; 11. Reference surface; 2. Placement frame; 21. Placement beam; 211. Adjustment slotted hole; 22. Positioning scale; 23. Support rod; 231. Adjusting nut; 24. Contact assembly; 241. Fixing frame; 242. Extension block; 243. Extension slotted hole; 244. Fixing element; 3. Measuring assembly; 31. Laser level; 311. Mounting channel steel; 32. Measuring telescopic rod. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0022] This application discloses a positioning and measuring device for guide wall trench excavation, such as... Figure 1 and 2 As shown, it includes a placement frame 2 and a measuring component 3. The placement frame 2 is used to stably place the device at the opening of the trench 1. The measuring component 3 includes a laser level 31 and a measuring telescopic rod 32. The laser level 31 is used to detect parameters such as the flatness of the trench wall and the angle of the extension direction during the excavation of the trench 1. The measuring telescopic rod 32 is used to detect the depth of the trench 1.

[0023] like Figure 2 and 3 As shown, the placement frame 2 includes a placement beam 21 and two support rods 23. The placement beam 21 is made of square tubular steel. The support rods 23 are connected to the placement beam 21, and the length direction of the support rods 23 is perpendicular to the length direction of the placement beam 21. The support rods 23 are used to support the placement beam 21, so that the placement beam 21 can remain stable with respect to the ground. When the placement frame 2 is placed on the ground at the opening of the trench 1, the length direction of the placement beam 21 is horizontal, and the length direction of the support rods 23 is vertical. Two adjustable oblong holes 211 are provided on the placement beam 21. The length direction of the adjustable oblong holes 211 is parallel to the length direction of the placement beam 21, and the depth direction of the holes is vertical. Each adjustable oblong hole 211 allows one support rod 23 to pass through along its depth direction. The support rod 23 can change its lateral position relative to the placement beam 21 through the oblong holes. The support rod 23 is threaded with two adjusting nuts 231. The two adjusting nuts 231 abut against the upper and lower sides of the placement beam 21 respectively, thereby achieving relative fixation between the support rod 23 and the placement beam 21.

[0024] like Figure 2 and 3As shown, one end of the support rod 23 is provided with a contact component 24, which abuts against the ground and is used to adjust the distance between the support rod 23 and the ground. Due to the poor flatness of the ground at the construction site, the contact component 24 is used to adjust the actual distance between the lower end of the support rod 23 and the ground, thereby correcting the levelness of the placed beam 21. The contact component 24 includes a fixing frame 241, an extension block 242, and a fixing member 244. The fixing frame 241 is welded to the lower end of the support rod 23, and the extension block 242 is slidably connected to the fixing frame 241. The sliding direction is parallel to the length direction of the support rod 23. The fixing member 244 is used to fix the fixing frame 241 and the extension block 242 in a certain adjusted relative position. The fixing component 244 consists of an extension bolt and an extension nut that are threaded together. The fixing bracket 241 and the extension block 242 have extension slotted holes 243 for the extension bolts to pass through. The extension slotted holes 243 on the fixing bracket 241 and the extension block 242 are parallel in length and both are vertical. When the extension bolt and extension nut are loosened, the extension block 242 and the fixing bracket 241 can move vertically relative to each other. When tightened, the extension block 242 and the fixing block are relatively fixed. Furthermore, when the extension block 242 is in contact with the ground, the support rod 23 and the placement beam 21 also maintain a relatively stable position relative to the ground. In this embodiment, the number of extension blocks 242 connected to a single fixing bracket 241 is two, and the two extension blocks 242 are located on opposite sides of the axis of the support rod 23.

[0025] like Figure 1 , 2 As shown in Figure 3, during the excavation of trench 1, a support beam spans across the opening of trench 1, and two support rods 23 are distributed on opposite sides of the opening of trench 1. Two laser levels 31 are used to emit vertical beams. The vertical beam emitted by a single laser level 31 coincides with one of the trench walls of trench 1. During excavation, the excavator determines the specific excavation direction by referring to the position of the vertical beam. A mounting channel steel 311 is fixedly connected to the bottom of the laser level 31, with its slot facing downwards. The mounting channel steel 311 straddles the placement beam 21, thus allowing the laser level 31 to be stably placed on the placement beam 21. The placement beam 21 is equipped with a positioning scale 22. The distance measurement direction of the positioning scale 22 is the length direction of the placement beam 21, and the positioning scale 22 is used to guide the placement position of the mounting channel steel 311. In this embodiment, the placement beam 21 can be equipped with positioning scale 22 by attaching a steel ruler to the placement beam 21.

[0026] like Figure 2 and 3As shown, the measuring telescopic rod 32 consists of multiple steel pipes nested together in sequence. One end of one of the steel pipes is fixedly connected to the bottom of the supporting crossbeam, and the length direction of the telescopic measuring rod is also vertical. The telescopic measuring rod possesses the ability to measure distance in this direction due to its deformability along its length. There are two measuring telescopic rods 32, both located within the trench 1. Each measuring telescopic rod 32 is close to one of the trench walls of the trench 1. During the excavation of the trench 1, the measuring telescopic rod 32 is pulled apart, allowing the depth of the trench 1 at the location of the placement frame 2 to be measured.

[0027] like Figure 1 and 2 As shown, before trench 1 is excavated, the ground of the construction site needs to be leveled to form a relatively flat reference surface 11. The placement frame 2 will be placed on the reference surface 11. After each horizontal distance is excavated, the positioning and measuring device can be moved forward a certain distance.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning and measuring device for guide wall trench excavation, characterized in that: Includes a placement rack (2) placed on the ground and located at the opening of a trench (1), the placement rack (2) being provided with two laser levels (31), each of the laser levels (31) being used to calibrate one of the walls of the trench (1).

2. The guide wall trench excavation positioning and measuring device according to claim 1, characterized in that: The placement frame (2) includes a placement beam (21) and two support rods (23). The laser level (31) is located on the upper side of the placement beam (21). The support rods (23) are connected to the placement beam (21). One end of the support rod (23) is provided with a contact component (24). The contact component (24) abuts against the ground. The contact component (24) is used to adjust the distance between the support rod (23) and the ground.

3. The guide wall trench excavation positioning and measuring device according to claim 2, characterized in that: The contact assembly (24) includes a fixed frame (241) and an extension block (242). The fixed frame (241) and the support rod (23) are fixedly connected. The extension block (242) and the fixed frame (241) are slidably connected. The sliding direction is parallel to the length direction of the support rod (23). The extension block (242) is in direct contact with the ground. The contact assembly (24) also includes a fixing member (244) that fixes the fixed frame (241) and the extension block (242) relative to each other.

4. The guide wall trench excavation positioning and measuring device according to claim 3, characterized in that: The fastener (244) consists of an extension bolt and an extension nut that are threaded together. The fastener (241) and the extension block (242) are provided with extension waist-shaped holes (243) through which the extension bolt passes.

5. A guide wall trench excavation positioning and measuring device according to any one of claims 2-4, characterized in that: The placement beam (21) is provided with an adjustment waist-shaped hole (211). The length direction of the adjustment waist-shaped hole (211) is parallel to the length direction of the placement beam (21), and the depth direction of the hole is vertical. The adjustment waist-shaped hole (211) is for the support rod (23) to pass through. Two adjustment nuts (231) are threaded on the support rod (23). The two adjustment nuts (231) abut against the upper and lower sides of the placement beam (21) respectively.

6. A guide wall trench excavation positioning and measuring device according to any one of claims 2-4, characterized in that: A measuring telescopic rod (32) is fixedly connected to the lower side of the placement beam (21). The length direction and the telescopic deformation direction of the measuring telescopic rod (32) are both vertical. The measuring telescopic rod (32) is located in the trench (1).

7. A guide wall trench excavation positioning and measuring device according to any one of claims 2-4, characterized in that: The placement beam (21) is a square tube steel, and the bottom of the laser level (31) is fixedly connected to a clamping channel steel (311), which straddles the placement beam (21).

8. A guide wall trench excavation positioning and measuring device according to any one of claims 2-4, characterized in that: The placement beam (21) is provided with a positioning scale (22), and the distance measurement direction of the positioning scale (22) is the length direction of the placement beam (21).

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