A support structure suitable for pipeline trench excavation and backfilling in pebble geology

Abstract

This utility model discloses a support structure suitable for excavation and backfilling of pipeline trenches in pebble geology, belonging to the technical field of support structures. The support structure includes two support plates and an adjustment mechanism. The adjustment mechanism includes a bidirectional threaded column disposed between the two support plates, and two symmetrical sliders slidably disposed on the surface of the bidirectional threaded column. The surfaces of the two sliders are respectively provided with threaded holes that connect with two opposite threads on the outer surface of the bidirectional threaded column. Two symmetrical adjustment rods are rotatably disposed on both ends of the sliders. By setting the adjustment mechanism, this support structure can quickly support the inner wall of the trench when supporting pipeline trenches in pebble geology. Furthermore, the distance between the two support plates can be quickly adjusted during the support process, making it highly practical and worthy of widespread use.

Description

Technical Field

[0001] This utility model relates to the field of support structure technology, specifically a support structure suitable for pipeline trench excavation and backfilling in pebble geology. Background Technology

[0002] Pipeline trenches in pebble geology refer to geological conditions encountered during pipeline construction where the soil is composed of pebble layers or strata containing pebble components.

[0003] Currently, in the process of excavation and backfilling of existing pipeline trenches in pebble geology, support structures are required to support the inner wall of the pipeline trench. Most of the existing support structures are single-sided support structures, and after supporting the inner wall of the pipeline trench, the position of the support structure cannot be adjusted according to the actual situation. In view of this, this application proposes a support structure suitable for the excavation and backfilling of pipeline trenches in pebble geology. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a support structure suitable for pipeline trench excavation and backfilling in pebble geology, thus solving the aforementioned problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a support structure suitable for excavation and backfilling of pipeline trenches in pebble geology, comprising two support plates and an adjustment mechanism; The adjustment mechanism includes a bidirectional threaded column disposed between two support plates, and two symmetrical sliders slidably disposed on the surface of the bidirectional threaded column. The surfaces of the two sliders are respectively provided with threaded holes that are threadedly connected to the outer surface of the bidirectional threaded column with two opposite threads. Two symmetrical adjustment rods are rotatably disposed on both ends of the sliders, and the ends of the two adjustment rods away from the sliders are rotatably connected to the surface of the support plates. A top plate is fixed at the top of the bidirectional threaded column, and the upper surface of the top plate is provided with a hexagonal operating groove adapted to an external hexagonal wrench.

[0006] Preferably, trapezoidal blocks are fixed at both ends of the slider, and the vertical cross-sectional shape of the trapezoidal blocks is an isosceles trapezoid, and the end of the adjusting rod is rotatably disposed on the inclined surface of the trapezoidal blocks.

[0007] Preferably, a first fixing post is fixedly provided on both inclined surfaces of the trapezoidal block, and a first spherical rotating groove extending to the end of the first fixing post is provided inside the first fixing post, and a first universal ball joint is rotatably provided on the inner wall of the first spherical rotating groove.

[0008] Preferably, the end of the first universal ball joint is provided with a first rotating opening, the inner wall of the first rotating opening is fixed with a first rotating shaft, and one end of the adjusting rod is provided with a first rotating hole that is rotatably connected to the outer surface of the first rotating shaft.

[0009] Preferably, a second fixing post is fixedly provided on the surface of the support plate and at each of the four corners of the support plate. The second fixing post has a second spherical rotating groove inside and extends to the end of the second fixing post. A second universal ball joint is rotatably provided on the inner wall of the second spherical rotating groove.

[0010] Preferably, the surface of the second universal ball head is provided with a second rotation opening, the inner wall of the second rotation opening is fixed with a second rotating shaft, and the other end of the adjusting rod is provided with a second rotating hole that is rotatably connected to the outer surface of the second rotating shaft.

[0011] Preferably, the bottom end and the middle surface of the bidirectional threaded column are respectively rotatably provided with a base plate and a connecting plate, and the outer surface of the bidirectional threaded column is fitted with two symmetrical first corrugated pipes and second corrugated pipes.

[0012] Preferably, one end of each of the two first bellows is rotatably connected to the surfaces of the chassis and the top plate, respectively; the other end of each of the two first bellows is rotatably connected to the surfaces of the two sliders, respectively; one end of each of the two second bellows is rotatably connected to the other side surface of the two sliders, respectively; and the other end of each of the two second bellows is rotatably connected to the upper and lower surfaces of the connecting plate, respectively. Beneficial effects

[0013] This invention provides a support structure suitable for pipeline trench excavation and backfilling in pebble geology. Compared with the prior art, it has the following advantages: This support structure, suitable for excavation and backfilling of pipeline trenches in gravelly geological conditions, utilizes an adjustment mechanism. Before supporting the pipeline trench in gravelly soil, the support structure is first placed sideways, with one support plate in contact with the ground. An external hexagonal wrench is used to rotate the top plate, causing the double-threaded column to rotate. Simultaneously, the support plate in contact with the ground is stepped on, and the rotation of the double-threaded column moves two sliders to both sides. This activates four adjusting rods on both sides to open up the two support plates, allowing them to... The spacing between the two support plates is gradually increased until it approaches the width of the trench. Operation is then stopped, and the two adjusted support plates are placed into the trench, with each plate facing one of the inner walls of the trench. Finally, the top plate is rotated using a hex wrench, which drives the double-threaded column to continue rotating, ensuring that the two support plates are pressed tightly against the inner walls of the trench. This achieves rapid support of the trench's inner walls. Furthermore, the spacing between the two support plates can be quickly adjusted during the support process, making it highly practical and worthy of widespread use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the adjustment mechanism of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0015] In the picture: 100. Support plate; 200. Adjustment mechanism; 201. Bidirectional threaded column; 202. Slider; 203. Adjustment rod; 204. Top plate; 205. Hexagonal operating groove; 206. Trapezoidal block; 207. First fixed column; 208. First universal ball joint; 209. First rotating shaft; 2010. Second fixed column; 2011. Second universal ball joint; 2012. Second rotating shaft; 2013. Chassis; 2014. Connecting plate; 2015. First bellows; 2016. Second bellows. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-5 This utility model provides a technical solution: a support structure suitable for excavation and backfilling of pipeline trenches in pebble geology, including two support plates 100 and an adjustment mechanism 200; The adjustment mechanism 200 includes a bidirectional threaded post 201 disposed between two support plates 100, and two symmetrical sliders 202 slidably disposed on the surface of the bidirectional threaded post 201. The surfaces of the two sliders 202 are respectively provided with threaded holes that are threadedly connected to the outer surface of the bidirectional threaded post 201 with two opposite threads. Two symmetrical adjustment rods 203 are rotatably disposed on both ends of the sliders 202, and the ends of the two adjustment rods 203 away from the sliders 202 are rotatably connected to the surface of the support plate 100. A top plate 204 is fixedly disposed at the top of the bidirectional threaded post 201, and a hexagonal operating groove 205 adapted to an external hexagonal wrench is provided on the upper surface of the top plate 204.

[0018] See Figure 1 , Figure 2Both ends of the slider 202 are fixed with trapezoidal blocks 206, and the vertical cross-sectional shape of the trapezoidal blocks 206 is an isosceles trapezoid. The end of the adjusting rod 203 is rotatably set on the inclined surface of the trapezoidal blocks 206.

[0019] Specifically, under the action of the trapezoidal block 206, the ends of the two adjusting rods 203 away from the trapezoidal block 206 can correspond to the four corners of the support plate 100.

[0020] See Figure 3 , Figure 4 The two inclined surfaces of the trapezoidal block 206 are each fixed with a first fixed post 207. The interior of the first fixed post 207 is provided with a first spherical rotating groove extending to the end of the first fixed post 207. The inner wall of the first spherical rotating groove is rotatably provided with a first universal ball head 208.

[0021] Specifically, under the action of the first fixed column 207 and the first universal ball joint 208, one end of the adjusting rod 203 can rotate freely.

[0022] See Figure 3 , Figure 4 The first universal ball joint 208 has a first rotating opening at its end, and a first rotating shaft 209 is fixed on the inner wall of the first rotating opening. One end of the adjusting rod 203 has a first rotating hole that is rotatably connected to the outer surface of the first rotating shaft 209.

[0023] Specifically, under the action of the first rotating shaft 209 and the first rotating hole, one end of the adjusting rod 203 can be rotatably connected to the surface of the first universal ball joint 208.

[0024] See Figure 3 , Figure 5 A second fixing post 2010 is fixedly provided on the surface of the support plate 100 and at the four corners of the support plate 100. A second spherical rotating groove is opened inside the second fixing post 2010 and extends to the end of the second fixing post 2010. A second universal ball head 2011 is rotatably provided on the inner wall of the second spherical rotating groove.

[0025] Specifically, under the action of the second fixed column 2010 and the second universal ball joint 2011, the other end of the adjusting rod 203 can rotate freely with respect to the surface of the support plate 100.

[0026] See Figure 3 , Figure 5 The surface of the second universal ball joint 2011 is provided with a second rotation opening, and the inner wall of the second rotation opening is fixed with a second rotating shaft 2012. The other end of the adjusting rod 203 is provided with a second rotating hole that is rotatably connected to the outer surface of the second rotating shaft 2012.

[0027] Specifically, the rotation of the second rotating shaft 2012 and the second rotating hole allows the other end of the adjusting rod 203 to be rotatably connected to the surface of the second universal ball joint 2011.

[0028] See Figure 1 , Figure 3 The bottom end and the middle surface of the bidirectional threaded column 201 are respectively rotatably provided with a base plate 2013 and a connecting plate 2014, and the outer surface of the bidirectional threaded column 201 is fitted with two symmetrical first corrugated pipes 2015 and second corrugated pipes 2016.

[0029] Specifically, the first corrugated pipe 2015 and the second corrugated pipe 2016 can effectively protect the outer surface of the bidirectional threaded column 201, preventing it from contacting the outside air and rainwater, and preventing it from rusting.

[0030] See Figure 1 , Figure 3 One end of each of the two first bellows 2015 is rotatably connected to the surfaces of the chassis 2013 and the top plate 204, respectively. The other end of each of the two first bellows 2015 is rotatably connected to the surfaces of the two sliders 202, respectively. One end of each of the two second bellows 2016 is rotatably connected to the other side surface of the two sliders 202, respectively. The other end of each of the two second bellows 2016 is rotatably connected to the upper and lower surfaces of the connecting plate 2014, respectively.

[0031] Specifically, it can prevent torque from occurring on the first bellows 2015 and the second bellows 2016 during the rotation of the bidirectional threaded column 201, thus achieving effective protection for the first bellows 2015 and the second bellows 2016.

[0032] In this invention, by setting an adjustment mechanism 200, the support structure is first placed sideways before supporting the pipeline trench in pebble geology, so that the surface of one support plate 100 is in contact with the ground. An external hex wrench is used to rotate the top plate 204, causing the bidirectional threaded column 201 to rotate. Simultaneously, the support plate 100 in contact with the ground is stepped on. The rotation of the bidirectional threaded column 201 causes two sliders 202 to move to both sides, thereby activating the four adjusting rods 203 on both sides to open the two support plates 100, gradually increasing the distance between them until it approaches the width of the trench, at which point the operation stops. The two adjusted support plates 100 are then placed into the trench, with each support plate 100 facing one of the inner walls of the trench. Finally, the top plate 204 is rotated using a hex wrench, which drives the bidirectional threaded column 201 to rotate further, thereby ensuring that the two support plates 100 are pressed against the inner walls of the trench (since the two support plates 100 are limited by the inner walls of the trench, their positions follow the rotation of the bidirectional threaded column 201). This achieves the purpose of quickly supporting the inner wall of the trench. Moreover, the distance between the two support plates 100 can be quickly adjusted during the support process. It is highly practical and worth promoting.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A support structure suitable for excavation and backfilling of pipeline trenches in pebble geology, characterized in that: It includes two support plates (100) and an adjustment mechanism (200); The adjustment mechanism (200) includes a bidirectional threaded column (201) disposed between two support plates (100) and two symmetrical sliders (202) slidably disposed on the surface of the bidirectional threaded column (201). The surfaces of the two sliders (202) are respectively provided with threaded holes that are connected to the outer surfaces of the bidirectional threaded column (201) with two opposite threads. Two symmetrical adjustment rods (203) are rotatably disposed on both ends of the sliders (202). The ends of the two adjustment rods (203) away from the sliders (202) are rotatably connected to the surface of the support plate (100). A top plate (204) is fixedly disposed at the top of the bidirectional threaded column (201), and a hexagonal operating groove (205) adapted to an external hexagonal wrench is provided on the upper surface of the top plate (204).

2. The support structure for pipeline trench excavation and backfilling in pebble geology as described in claim 1, characterized in that: Both ends of the slider (202) are fixed with trapezoidal blocks (206), and the vertical cross-sectional shape of the trapezoidal blocks (206) is an isosceles trapezoid. The end of the adjusting rod (203) is rotatably set on the inclined surface of the trapezoidal blocks (206).

3. The support structure for pipeline trench excavation and backfilling in pebble geology as described in claim 2, characterized in that: The trapezoidal block (206) has two inclined surfaces fixed with a first fixed post (207). The first fixed post (207) has a first spherical rotating groove extending to the end of the first fixed post (207). The inner wall of the first spherical rotating groove is rotatably provided with a first universal ball head (208).

4. The support structure for pipeline trench excavation and backfilling in pebble geology as described in claim 3, characterized in that: The first universal ball joint (208) has a first rotating opening at its end, and a first rotating shaft (209) is fixed on the inner wall of the first rotating opening. One end of the adjusting rod (203) has a first rotating hole that is rotatably connected to the outer surface of the first rotating shaft (209).

5. The support structure for pipeline trench excavation and backfilling in pebble geology according to claim 4, characterized in that: The surface of the support plate (100) and at the four corners of the support plate (100) are all fixed with second fixing posts (2010). The interior of the second fixing post (2010) is provided with a second spherical rotating groove that extends to the end of the second fixing post (2010). The inner wall of the second spherical rotating groove is rotatably provided with a second universal ball head (2011).

6. The support structure for pipeline trench excavation and backfilling in pebble geology according to claim 5, characterized in that: The surface of the second universal ball head (2011) is provided with a second rotating opening, and the inner wall of the second rotating opening is fixed with a second rotating shaft (2012). The other end of the adjusting rod (203) is provided with a second rotating hole that is rotatably connected to the outer surface of the second rotating shaft (2012).

7. The support structure for pipeline trench excavation and backfilling in pebble geology according to claim 1, characterized in that: The bottom end and the middle surface of the bidirectional threaded column (201) are respectively rotatably provided with a base plate (2013) and a connecting plate (2014), and the outer surface of the bidirectional threaded column (201) is fitted with two symmetrical first corrugated pipes (2015) and second corrugated pipes (2016).

8. The support structure for pipeline trench excavation and backfilling in pebble geology according to claim 7, characterized in that: One end of each of the two first bellows (2015) is rotatably connected to the surfaces of the chassis (2013) and the top plate (204), respectively. The other end of each of the two first bellows (2015) is rotatably connected to the surfaces of the two sliders (202), respectively. One end of each of the two second bellows (2016) is rotatably connected to the other side surface of the two sliders (202), respectively. The other end of each of the two second bellows (2016) is rotatably connected to the upper and lower surfaces of the connecting plate (2014), respectively.

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