Movable groove supporting device

Abstract

The utility model provides a movable groove supporting device which comprises a first soil retaining plate and a second soil retaining plate which are arranged oppositely, the middle upper portion of the first soil retaining plate and the middle upper portion of the second soil retaining plate are detachably connected through a transverse pipe, and idler wheels are arranged at the bottom end of the first soil retaining plate and the bottom end of the second soil retaining plate respectively. The device moves in the groove and is not prone to impacting the side wall of the groove, the collapse risk is reduced, stage supporting of the groove is achieved, the safety of construction operation of a pipeline construction point is guaranteed, the construction flexibility is improved, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of pipeline construction, in particular to a movable trench supporting device. Background Art

[0002] At present, in the construction of buried pipelines, trenches must be dug first, and then support devices must be set up in the trenches to support the side walls of the trenches, prevent earthwork collapse, and ensure the safety of construction operations such as pipeline alignment and connection. Since the existing trench support devices cannot be moved, in order to facilitate pipeline laying, the trench is dug to a longer length, and then support devices are set up along the entire length of the trench to support the entire trench to ensure safe pipeline construction. The support device of this structure supports the entire trench, so the construction cost is relatively high.

[0003] If a staged support device is used, that is, support is only set up at the pipeline construction location, since the support device is not equipped with a mobile structure, a lifting device is required outside the trench to lift the support section from the previous construction location to the next location. The lifting process involves lifting, moving, and lowering actions. The support can easily hit the side wall of the trench, causing earth collapse and posing a safety hazard. Therefore, this support method is rarely used in pipeline construction. Utility Model Content

[0004] In view of this, the utility model aims to provide a movable trench support device, which can be safely moved in the trench to support the trench at the pipeline construction operation position, thereby reducing construction costs.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A movable trench support device comprises a first soil retaining plate and a second soil retaining plate which are arranged opposite to each other. The middle and upper parts of the first soil retaining plate and the second soil retaining plate are detachably connected through a transverse pipe. The bottom ends of the first soil retaining plate and the second soil retaining plate are respectively provided with rollers.

[0007] Furthermore, the detachable connection structure between the cross tube and the first earth retaining plate is a first detachable connection structure, which includes a first connecting tube arranged on the first earth retaining plate, a connecting plate arranged at a non-end position of the first connecting tube, and a flange arranged on the cross tube, the outer end of the connecting tube is inserted into the cross tube, the connecting plate and the flange are opposite and connected by a first bolt, the first bolt is partially sleeved with a sleeve between the connecting plate and the flange, and the two ends of the sleeve abut the connecting plate and the flange.

[0008] Furthermore, the detachable connection structure between the cross tube and the second earth retaining plate is a second detachable connection structure, which includes a second bolt and a second connecting pipe. The second connecting pipe is arranged on the second earth retaining plate, and the second connecting pipe is inserted into the cross tube. The second bolt penetrates the cross tube and the tube wall of the second connecting pipe to connect the second connecting pipe and the cross tube.

[0009] Furthermore, the end of the transverse tube abuts against the second earth retaining plate.

[0010] Furthermore, the first retaining plate and the second retaining plate are respectively connected and fixed with cross beams below, and the rollers are connected to the corresponding cross beams through a buffer connection structure;

[0011] The buffer connection structure includes a vertical rod arranged on the roller bracket of the roller, the vertical rod moves upward to pass through the cross beam, a limit piece is arranged on the top of the vertical rod, a spring is mounted on the vertical rod, the top end of the spring abuts the cross beam, and the bottom end abuts the roller bracket.

[0012] Furthermore, the limiting members are two nuts threadedly connected to the vertical pole, and the two nuts are tightened against each other.

[0013] Furthermore, the first retaining plate and the second retaining plate respectively include two vertical frames, and a plurality of connecting beams arranged between the two vertical frames, and a column is arranged between every two adjacent connecting beams.

[0014] Compared with the prior art, the movable trench support device described in the utility model has the following advantages:

[0015] (1) When the device moves in the trench, it will not easily hit the side wall of the trench, thus reducing the risk of landslides, achieving phased support for the trench, ensuring the safety of construction operations at the pipeline construction site, improving construction flexibility, and reducing construction costs.

[0016] (2) In the present invention, the first earth retaining plate and the second earth retaining plate are detachably connected via a transverse pipe, and after the pipeline is laid, the device is disassembled for storage.

[0017] (3) In the present invention, the connection structure between the transverse tube and the first and second retaining plates improves the support stability of the entire support device, wherein the first detachable connection structure enables the width of the device to be adjusted according to the groove width to meet the support and protection requirements of grooves of different widths. The length of the sleeve between the connecting plate and the flange can be set as needed to ensure that one end of the transverse tube is stably connected to the first retaining plate, and the other end of the transverse tube is connected and fixed to the second retaining element through the second detachable connection structure to ensure that the entire support device stably supports and protects the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0019] Figure 1 This is a front view of a movable trench support device according to an embodiment of the utility model;

[0020] Figure 2 A top view of a movable trench support device according to an embodiment of the utility model;

[0021] Figure 3 This is a left view of a movable trench support device according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of a first detachable connection structure in an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of a second detachable connection structure in an embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the buffer connection structure in the embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1-first earth retaining plate; 2-second earth retaining plate; 3-cross tube; 4-roller; 41-roller bracket; 5-second detachable connection structure; 51-second connecting pipe; 52-second bolt; 6-first detachable connection structure; 61-first connecting pipe; 62-connecting plate; 63-sleeve; 64-first bolt; 65-flange; 7-cross beam; 8-buffer connection structure; 81-vertical pole; 82-spring; 83-nut; 84-threaded portion; 9-connecting cross beam; 10-vertical column. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, a movable trench support device includes a first retaining plate 1, a second retaining plate 2 and several transverse tubes 3. The first retaining plate 1 and the second retaining plate 2 are opposite and connected and fixed at the middle and upper positions by four transverse tubes 3, wherein two transverse tubes 3 are arranged near the tops of the first retaining plate 1 and the second retaining plate, and the other two transverse tubes 3 are arranged near the left and right sides of the first retaining plate 1 and the second retaining plate 2, so that personnel can enter the space between the first retaining plate 1 and the second retaining plate 2 and perform pipeline construction work in the space. The bottom ends of the first retaining plate 1 and the second retaining plate 2 are respectively provided with rollers 4, and the rollers 4 are rolled with patterns. The device can move in the trench to provide staged support for the trench, that is, the device can be moved according to the construction progress, so that it can be moved from the previous construction point to the next construction point in the trench, and the trench at the construction point can be supported, thereby improving the construction flexibility and reducing the construction cost accordingly.

[0029] In the utility model, the transverse pipe 3 is connected to the first retaining plate 1 through the first detachable connecting structure 6, and is connected to the second retaining plate 2 through the second detachable connecting structure 5, so that the device can be disassembled and stored in the warehouse.

[0030] The specific structure of the first detachable connection structure 6 is as follows Figure 4 As shown, it includes a first connecting pipe 61, a connecting plate 62, and a flange 65. The outer diameter of the first connecting pipe 61 is set correspondingly to the inner diameter of the transverse pipe 3. The connecting plate 62 is fixed to the first connecting pipe 61, and a distance is left between the connecting plate 62 and both ends of the first connecting pipe 61, that is, the first connecting pipe 61 is arranged to cross the connecting plate 62. The flange 65 is arranged at the end of the transverse pipe 3, and the outer end of the first connecting pipe 61 extends into the transverse pipe 3. The flange 65 is directly opposite to the connecting plate 62 and connected by a plurality of first bolts 64. Each first bolt 64 is partially sleeved with a sleeve 63 between the connecting plate 62 and the flange 65. The two ends of the sleeve 63 abut against the connecting plate 62 and the flange 65, so that the connecting plate 62 and the flange 65 are connected and fixed by the first bolts 64. The length of the sleeve 63 is set as needed, that is, the distance between the connecting plate 62 and the flange 65 can be adjusted, so that the distance between the first retaining plate 1 and the end of the cross pipe 3 can be adjusted, and the distance between the first retaining plate 1 and the second retaining plate 2 can be adjusted according to the groove width, so that it can effectively and stably support the groove.

[0031] The structure of the second detachable connection structure 5 is as follows Figure 5 As shown, it includes a second bolt 52 and a second connecting pipe 51. The second connecting pipe 51 is arranged on the second earth retaining plate 2. The second connecting pipe 51 is inserted into the cross pipe 3. The end of the cross pipe 3 abuts against the second earth retaining plate 2. The second bolt 52 penetrates the cross pipe 3 and the wall of the second connecting pipe 51 to connect and fix the second connecting pipe 51 and the cross pipe 3.

[0032] In the utility model, cross beams 7 are respectively connected and fixed to the lower parts of the first earth retaining plate 1 and the second earth retaining plate 2 , and the rollers 4 are connected to the corresponding cross beams 7 via a buffer connection structure 8 .

[0033] like Figure 6 As shown, the buffer connection structure 8 includes a vertical rod 81 arranged on the roller bracket 41 of the roller 4, and the vertical rod 81 moves upward to pass through the cross beam 7. A threaded portion 84 is provided on the top of the vertical rod 81, and two nuts 83 are threaded on the threaded portion 84. The two nuts 83 are tightened against each other, and the nuts 83 are limiters to prevent the roller from falling off. The portion of the vertical rod 81 below the cross beam 7 is covered with a spring 82, and the top end of the spring 82 abuts against the cross beam 7 and the bottom end abuts against the roller bracket 41. The setting of the buffer connection structure 8 between the roller 4 and the cross beam 7 enables the roller 4 to automatically adjust with the height of the groove bottom, that is, the ground in the groove, so that the device can support and walk on the uneven ground of the groove.

[0034] In the present invention, the first earth retaining plate 1 and the second earth retaining plate 2 respectively include two vertical frames, and a plurality of connecting beams 9 arranged between the two vertical frames, and a column 10 is arranged between every two adjacent connecting beams 9 .

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable trench support device, characterized in that: The invention comprises a first earth retaining plate (1) and a second earth retaining plate (2) which are arranged opposite to each other, wherein the middle and upper parts of the first earth retaining plate (1) and the second earth retaining plate (2) are detachably connected via a transverse pipe (3), and rollers (4) are respectively provided at the bottom ends of the first earth retaining plate (1) and the second earth retaining plate (2).

2. A movable trench support device according to claim 1, characterized in that: The detachable connection structure between the transverse tube (3) and the first retaining plate (1) is a first detachable connection structure (6), which comprises a first connection tube (61) provided on the first retaining plate (1), a connection plate (62) provided at a non-end position of the first connection tube (61), and a flange (65) provided on the transverse tube (3), the outer end of the connection tube (61) is inserted into the transverse tube (3), the connection plate (62) and the flange (65) are opposite and connected by a first bolt (64), the first bolt (64) is partially sleeved with a sleeve (63) between the connection plate (62) and the flange (65), and the two ends of the sleeve (63) abut against the connection plate (62) and the flange (65).

3. A movable trench support device according to claim 1, characterized in that: The detachable connection structure between the transverse tube (3) and the second earth retaining plate (2) is a second detachable connection structure (5), which comprises a second bolt (52) and a second connection tube (51), wherein the second connection tube (51) is arranged on the second earth retaining plate (2), the second connection tube (51) is inserted into the transverse tube (3), and the second bolt (52) penetrates the tube wall of the transverse tube (3) and the second connection tube (51) to connect the second connection tube (51) and the transverse tube (3).

4. A movable trench support device according to claim 3, characterized in that: The end of the transverse pipe (3) abuts against the second earth retaining plate (2).

5. A movable trench support device according to claim 1, characterized in that: A crossbeam (7) is respectively connected and fixed below the first earth retaining plate (1) and the second earth retaining plate (2), and the roller (4) is connected to the corresponding crossbeam (7) via a buffer connection structure (8); The buffer connection structure (8) comprises a vertical rod (81) arranged on a roller bracket (41) of the roller (4); the vertical rod (81) moves upward to pass through the cross beam (7); a limiter is provided on the top of the vertical rod (81); a spring (82) is sleeved on the vertical rod (81); the top end of the spring (82) abuts against the cross beam (7) and the bottom end abuts against the roller bracket (41).

6. A movable trench support device according to claim 5, characterized in that: The limiting members are two nuts (83) threadedly connected to the vertical rod (81), and the two nuts (83) are tightened against each other.

7. A movable trench support device according to claim 1, characterized in that: The first retaining plate (1) and the second retaining plate (2) respectively comprise two vertical frames and a plurality of connecting cross beams (9) arranged between the two vertical frames, and a column (10) is arranged between every two adjacent connecting cross beams (9).

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