Hard rock stratum slope excavation elevation control device

Abstract

The utility model relates to the technical field of elevation control, and discloses a hard rock slope excavation elevation control device, which comprises a vertical rod, a support cylinder and a lifting rod, a first counterweight seat is fixed at the bottom of the vertical rod, a sliding sleeve is slidably sleeved on the outer ring of the vertical rod, an insertion cylinder is transversely fixed on the side edge of the sliding sleeve, and the lifting rod is fixed on the support cylinder. The surface of the sliding sleeve on the side edge of the inserting cylinder is connected with a first locking bolt penetrating into the inserting cylinder in a screwed mode, the lower portion of the lifting rod is inserted into the supporting cylinder in a sliding mode, and the surface of the upper portion of the front end of the supporting cylinder is connected with a second locking bolt penetrating into the supporting cylinder in a screwed mode. According to the technical scheme of the utility model, the transverse tube with the adjustable height is additionally arranged on the side edge of the top of the lifting rod and is matched with the vertical rod and the laser pen for use, so that the laser pen irradiates towards the lifting rod below the transverse tube, the transverse tube sprays water mist downwards, and light rays are more easily dominated through a water mist area; clear observation during use in the daytime is facilitated, and the elevation effect is provided.

Description

Technical Field

[0001] This utility model relates to the field of elevation control technology, specifically to an elevation control device for excavation of hard rock slopes. Background Technology

[0002] Excavation of hard rock slopes is a critical step in civil engineering. During excavation, a top-down, staged excavation method is often used, with blasting loosening technology being the preferred approach. Real-time monitoring of slope displacement is necessary. Excavation alters the stress state of the rock mass, requiring stability analysis. Excavation of hard rock slopes demands specialized construction to ensure safety and quality. Elevation control devices are also required during excavation to ensure the excavation depth meets requirements.

[0003] The utility model patent with announcement number CN220039466U discloses an instrument for controlling the boundary and elevation of stratified and zoned excavation of contaminated soil. It uses a laser pointer to effectively and accurately feed back the location to construction workers and operators of construction machinery under nighttime lighting, and is less affected by the environment.

[0004] The implementation of this technical solution has at least the following drawbacks: While laser pointers can effectively provide elevation marking at night, during the day, the laser beam is difficult to observe due to strong ambient light, affecting the marking effect. Therefore, we propose an elevation control device for hard rock slope excavation. Utility Model Content

[0005] The purpose of this invention is to provide a device for controlling the elevation of hard rock slope excavation. By additionally setting an adjustable horizontal tube on the top side of the lifting rod, and using it in conjunction with the upright and laser pointer, the laser pointer is directed towards the lifting rod below the horizontal tube. The horizontal tube sprays water mist downwards, and the light is more easily visible through the water mist area, which is beneficial for clear observation during daytime use and provides elevation information, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hard rock slope excavation elevation control device, comprising a vertical pole, a support cylinder, and a lifting rod. A first counterweight is fixed to the bottom of the vertical pole, and a sliding sleeve is slidably fitted onto the outer ring of the vertical pole. A cylinder is laterally fixed to the side of the sliding sleeve, and a first locking bolt penetrating into the cylinder is connected to the surface of the sliding sleeve on the side of the cylinder by a screw connection. A second counterweight is fixed to the bottom of the support cylinder, and the lifting rod is slidably inserted into the support cylinder below. A second locking bolt penetrating into the support cylinder is connected to the upper surface of the front end of the support cylinder by a screw connection. A horizontal tube is laterally fixed to the top side of the lifting rod, and multiple nozzles communicating with the interior of the horizontal tube are evenly arranged at the bottom of the horizontal tube.

[0007] By adopting the above technical solution, the additional support tube and lifting rod are used together during the day. After adjusting the height of the horizontal tube, it is positioned in the direction of the laser pointer, so that the horizontal tube is in the area above the light and sprays water mist downwards. The light passes through the water mist, which makes it more visible and can be observed, thus ensuring the elevation function during daytime use.

[0008] Optionally, the surface of the upright is uniformly provided with scale lines, which are distributed on both sides of the upright.

[0009] By adopting the above technical solution, the elevation can be determined by using the scale lines on the surface of the pole in conjunction with a level, thereby adjusting the height of the sliding sleeve.

[0010] Optionally, inserts are fixed to both sides of the sliding sleeve, and the inserts on both sides are at the same height.

[0011] By adopting the above technical solution, laser pointers can be inserted and fixed on both sides of the sliding sleeve.

[0012] Optionally, a rubber strip is fitted and fixed inside the insert, and multiple rubber strips are provided.

[0013] By adopting the above technical solution, when the laser pointer is inserted into the tube, the rubber strip abuts against the side surface of the laser pointer, which has the function of preventing slippage and locking it.

[0014] Optionally, reflective strips are attached and fixed to the surfaces of the support cylinder and the lifting rod, with the reflective strips located on the sides of the support cylinder and the lifting rod below the horizontal tube.

[0015] By adopting the above technical solution, the reflective strip can be easily adjusted so that the laser pointer can be pointed at the support cylinder or lifting rod for reference.

[0016] Optionally, the end of the horizontal tube passes through the lifting rod and is connected to the water inlet pipe provided on the other side of the lifting rod.

[0017] By adopting the above technical solution, water is supplied to the horizontal pipe through the water inlet pipe.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0019] 1. The technical solution of this application involves setting an additional adjustable horizontal tube on the top side of the lifting pole, which is used in conjunction with the upright pole and a laser pointer. The laser pointer is directed towards the lifting pole below the horizontal tube, and the horizontal tube sprays water mist downwards. The light passes through the water mist area and is more easily visible, which is beneficial for clear observation during daytime use and provides a height indication function.

[0020] 2. The technical solution of this application can also reduce dust at the construction site by spraying water mist from the horizontal pipe downwards. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the pole structure of the elevation control device for hard rock slope excavation according to this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the support cylinder and lifting rod of the hard rock slope excavation elevation control device of this utility model;

[0024] Figure 3 This is a schematic diagram of the sliding sleeve position structure of the hard rock slope excavation elevation control device of this utility model.

[0025] In the diagram: 1. Upright pole; 11. First counterweight; 12. Sliding sleeve; 121. Insert sleeve; 122. Rubber strip; 13. Scale line; 14. First locking bolt; 2. Support sleeve; 21. Second counterweight; 22. Second locking bolt; 3. Lifting rod; 4. Horizontal pipe; 41. Nozzle; 42. Water inlet pipe; 5. Reflective strip. Detailed Implementation

[0026] Please see Figure 1-3 This utility model provides a technical solution: a hard rock slope excavation elevation control device, including a pole 1, the bottom of which is fixed with a first counterweight 11. The first base can be used to stably support the lifting rod 3. When using the support, it is also necessary to ensure that the pole 1 is in a vertical state. Therefore, a fixed spirit level can also be embedded in the surface of the first counterweight 11 (not shown in the figure). A sliding sleeve 12 is slidably fitted on the outer ring of the pole 1, and a cylinder 121 is horizontally fixed on the side of the sliding sleeve 12. When in use, the sliding sleeve... The height of the sleeve 12 can be adjusted by adjusting the height of the outer ring of the pole 1. The first locking bolt 14, which penetrates into the inside of the sleeve 121, is connected to the surface of the sliding sleeve 12 located on the side of the sleeve 121 by screwing. After the adjustment is in place, the first locking bolt 14 is tightened so that its end abuts against the surface of the pole 1 to lock the height of the sliding sleeve 12 and the sleeve 121. The surface of the pole 1 is evenly provided with scale lines 13, which are distributed on both sides of the surface of the pole 1. The position of the sliding sleeve 12 can be adjusted to the elevation line with the help of a level.

[0027] A rubber strip 122 is fitted and fixed inside the insert 121. Multiple rubber strips 122 are provided. When in use, the laser pointer is inserted into the insert 121 and is locked in place by the rubber strip 122 to prevent slipping. The laser pointer can illuminate horizontally to provide elevation information.

[0028] To enable normal daytime use, a support cylinder 2 and a lifting rod 3 are also provided. A second counterweight 21 is fixed to the bottom of the support cylinder 2. The support cylinder 2 can be stably supported on the ground in the direction of the laser pointer through the second counterweight 21. It also needs to be kept vertical so that the lower part of the lifting rod 3 can be slidably inserted into the support cylinder 2. The height of the lifting rod 3 can be adjusted when it rises and falls in the support cylinder 2. A second locking bolt 22 that penetrates into the support cylinder 2 is connected to the upper surface of the front end of the support cylinder 2 by screwing. When the second locking bolt 22 is tightened, it can lock the height of the lifting rod 3 and lock the height of the horizontal tube 4 that is horizontally fixed on the top side of the lifting rod 3. Multiple nozzles 41 that communicate with the interior are evenly arranged at the bottom of the horizontal tube 4. The end of the horizontal tube 4 passes through the lifting rod 3 and is connected to the water inlet pipe 42 set on the other side of the lifting rod 3.

[0029] When in use, the water inlet pipe 42 is connected to the clean water supply pipe, so that the water mist is sprayed downward from the nozzle 41. When the laser pointer light passes through the water mist, it is more easily revealed, thereby improving the marking effect and ensuring the purpose of elevation control during the day.

[0030] In addition, reflective strips 5 are attached and fixed to the surfaces of the support cylinder 2 and the lifting rod 3. The reflective strips 5 are located on the sides of the support cylinder 2 and the lifting rod 3 below the horizontal tube 4, so that when adjusting the position of the support cylinder 2 and the lifting rod 3, the laser pointer can be directed towards the support cylinder 2 or the lifting rod 3 to determine the position.

[0031] The slide sleeve 12 also has inserts 121 fixed on both sides of the slide sleeve 12. The inserts 121 on both sides are at the same height, so that laser pointers can be installed on both sides during use and can emit height-marking beams to both sides.

[0032] In use, the upright pole 1 is stably supported on the ground on the side of the slope by the first counterweight 11, keeping the upright pole 1 vertical. Then, the elevation is determined by using a level instrument with the scale lines 13 on the surface of the upright pole 1. Loosening the first locking bolt 14 releases the lock on the height of the sliding sleeve 12, allowing the height of the sliding sleeve 12 to be adjusted up and down to the elevation. Then, the first locking bolt 14 is tightened again so that it abuts against the side surface of the upright pole 1 to lock the height of the sliding sleeve 12. Subsequently, the laser pointer is inserted into the left or right insert 121 and locked by the rubber strip 122 for anti-slip. The horizontal light emitted by the laser pointer after activation provides an elevation reference, ensuring effective observation even during daytime use. Observe the light source and position the support cylinder 2 and lifting rod 3 in the direction of the laser pointer's beam, supported by the second counterweight 21. The lifting rod 3 can be raised and lowered within the support cylinder 2 to adjust the height of the horizontal tube 4. Tighten the second locking bolt 22 to lock the height. With the help of the reflective strips 5 on the surface of the support cylinder 2 or lifting rod 3, ensure that the laser pointer's beam is aligned with the positions of the support cylinder 2 and lifting rod 3, and make the horizontal tube 4 as parallel as possible to the light source. Finally, connect the water inlet pipe 42 to the water supply pipe, and clean water enters the horizontal tube 4 and sprays water mist downwards from the nozzle 41. When the light passes through the water mist, it is easier to be seen, improving the marking effect during the day. In addition, the sprayed water mist can also help reduce dust at the construction site.

Claims

1. A device for controlling the elevation of a hard rock slope excavation, comprising a vertical pole (1), a support cylinder (2), and a lifting rod (3), characterized in that: The bottom of the upright (1) is fixed with a first counterweight (11), and the outer ring of the upright (1) is slidably fitted with a sliding sleeve (12). A tube (121) is horizontally fixed on the side of the sliding sleeve (12), and a first locking bolt (14) that penetrates into the tube (121) is connected to the surface of the sliding sleeve (12) on the side of the tube (121) by screwing. The bottom of the support cylinder (2) is fixed with a second counterweight (21), and the lifting rod (3) is slidably inserted into the support cylinder (2). The upper surface of the front end of the support cylinder (2) is connected by a second locking bolt (22) that penetrates into the inside of the support cylinder (2) by screwing. A horizontal tube (4) is fixed to the top side of the lifting rod (3), and multiple nozzles (41) communicating with its interior are evenly arranged at the bottom of the horizontal tube (4).

2. The elevation control device for hard rock slope excavation according to claim 1, characterized in that: The surface of the pole (1) is uniformly provided with scale lines (13), which are distributed on both sides of the pole (1).

3. The elevation control device for hard rock slope excavation according to claim 1, characterized in that: The sliding sleeve (12) has two pairs of inserts (121) fixed on its two sides, and the inserts (121) on both sides are at the same height.

4. The elevation control device for hard rock slope excavation according to claim 1, characterized in that: A rubber strip (122) is fitted and fixed inside the insert (121), and multiple rubber strips (122) are provided.

5. The elevation control device for hard rock slope excavation according to claim 1, characterized in that: Reflective strips (5) are attached and fixed to the surfaces of the support cylinder (2) and the lifting rod (3). The reflective strips (5) are located on the side of the support cylinder (2) and the lifting rod (3) below the horizontal tube (4).

6. The elevation control device for hard rock slope excavation according to claim 1, characterized in that: The end of the horizontal pipe (4) passes through the lifting rod (3) and is connected to the water inlet pipe (42) provided on the other side of the lifting rod (3).

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