trench support device

Abstract

This invention provides a trench support device comprising: a frame having a first beam, a second beam, a third beam and a fourth beam, the first beam being opposite to the third beam and the second beam being opposite to the fourth beam, wherein the second beam is detachably connected to the first beam and the third beam, and the fourth beam is detachably connected to the first beam and the third beam; and a plurality of side support columns detachably disposed on the first beam and the third beam.

Claims

1. A trench support device, comprising: a frame having a first beam, a second beam, a third beam and a fourth beam, the first beam opposite to the third beam, the second beam opposite to the fourth beam, wherein the second beam is detachably connected to the first beam and the third beam, and the fourth beam is detachably connected to the first beam and the third beam; and a plurality of side support columns detachably disposed on the first beam and the third beam.

2. The trench support device as claimed in claim 1, wherein the side support columns comprise: a first side support column adjacent to a first end of the first beam; a second side support column adjacent to a second end of the first beam; a third side support column adjacent to a third end of the third beam; and a fourth side support column adjacent to a fourth end of the third beam; wherein the first end is opposite to the third end, and the second end is opposite to the fourth end.

3. The trench support device as described in claim 2 further comprises: a plurality of upper abutment beams detachably mounted on the corresponding side support columns.

4. The trench support device as claimed in claim 3, wherein the upper abutment beams comprise: a first upper abutment beam detachably mounted on the first side support column; a second upper abutment beam detachably mounted on the second side support column; a third upper abutment beam detachably mounted on the third side support column; and a fourth upper abutment beam detachably mounted on the fourth side support column.

5. The trench support device as claimed in claim 2, wherein the first side support column is opposite to the third side support column, and the second side support column is opposite to the fourth side support column.

6. The trench support device as claimed in claim 1, wherein the first beam has a first length and the third beam has a third length, wherein the first length is equal to the third length.

7. The trench support device as claimed in claim 6, wherein the second beam has a second length and the fourth beam has a fourth length, wherein the second length is equal to the fourth length.

8. The trench support device as claimed in claim 7, wherein the first length is greater than the second length and the third length is greater than the fourth length.

9. The trench support device as claimed in claim 2, wherein the second beam connects the first end of the first beam to the third end of the third beam, and the fourth beam connects the second end of the first beam to the fourth end of the third beam.

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