Movable groove supporting device

Abstract

A movable groove supporting device comprises two oppositely-arranged supporting plates, cross beams are arranged on the inner walls of the supporting plates, the cross beams are connected with U-shaped hinged supports, a rhombic connecting rod is arranged between the two U-shaped hinged supports, the two opposite angle ends of the rhombic connecting rod are hinged to the U-shaped hinged supports respectively, and the other two opposite angle ends of the rhombic connecting rod are in threaded fit with a screw rod. The screw rod is rotated through the wrench, the adjusting mode is labor-saving, and the supporting plate can be tightly attached to the inner wall of the groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of trench support, and particularly relates to a movable trench support device. Background Art

[0002] Most water environment governance projects are located in urban areas, facing the characteristics of multiple working surfaces, wide distribution range, narrow construction working surface, and tight construction period. In order to ensure the progress and safety of project construction, trench support is a key process. New underground pipeline projects are generally constructed in a vertical open excavation method when construction conditions permit. When the excavation depth exceeds 1.5m, the trench needs to be supported to prevent trench collapse and landslide accidents and ensure the safety of workers.

[0003] The current support device cannot be flexibly adjusted according to the actual width of the groove, and cannot be reused, resulting in a waste of resources. A search was conducted on the above technical issues and it was found that: Chinese patent document CN218786844U discloses a movable groove support device, which changes the length of column one and column two through positioning holes and fasteners, thereby achieving the purpose of changing the spacing between the support plates. However, the adjustment mechanism can only move the two support plates manually. When the support plate contacts the inner wall of the groove, it is difficult for people to push the support plate forward, which results in the support plate not fitting tightly against the inner wall of the groove. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a movable groove supporting device. By rotating the screw rod with a wrench, the adjustment method is relatively labor-saving and can make the supporting plate fit tightly with the inner wall of the groove.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A movable trench support device includes two support plates arranged opposite to each other. The inner walls of the support plates are provided with a crossbeam, which is connected to a U-shaped hinged support. A diamond connecting rod is provided between the two U-shaped hinged supports. The two diagonal ends of the diamond connecting rod are respectively hinged to the U-shaped hinged support, and the other two diagonal ends of the diamond connecting rod cooperate with the screw thread.

[0007] Preferably, a pulley is provided on the outer wall of the supporting plate, and the pulley is used for sliding cooperation with the guide rail.

[0008] Preferably, the inner wall of the support plate is provided with a plurality of vertical beams, and the cross beams are welded to the vertical beams.

[0009] Preferably, each supporting plate inner wall is provided with at least two cross beams, and a plurality of diamond-shaped connecting rods are provided between the cross beams located on the same horizontal plane.

[0010] Preferably, the diamond-shaped connecting rod includes four connecting rods, and the four connecting rods are connected to form a parallelogram structure through pins, wherein two diagonal pins on the same horizontal plane are connected to the U-shaped hinged support, and the other two pins are matched with the screw threads.

[0011] Preferably, a wrench socket is provided at the end of the screw rod.

[0012] The utility model can achieve the following beneficial effects:

[0013] 1. The utility model is easy to install, and can realize the extension and retraction of the diamond connecting rod by adjusting the rotating screw according to different groove widths, thereby achieving the effect of rapid support of the groove walls on both sides, overcoming many shortcomings such as long construction period, high construction noise, and unsafe structure.

[0014] 2. The pulley can freely move on the U-shaped steel rail to achieve the effect of rapid support, improve construction efficiency, and greatly shorten the construction period. The diamond-shaped connecting rod can not only adapt to the rapid installation and support under different groove width conditions, but also can be quickly folded and stored during recycling, saving space and realizing resource recycling.

[0015] 3. Turning the screw with a wrench is a labor-saving adjustment method that can make the support plate fit tightly against the inner wall of the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a rendering of the use of the utility model;

[0018] Figure 2 This is the front view of the utility model;

[0019] Figure 3 It is a top view of the utility model;

[0020] Figure 4 This is a connection diagram of the diamond-shaped connecting rod and the screw rod of the utility model.

[0021] In the figure: guide rail 1, support plate 2, pulley 3, screw 4, cross beam 5, vertical beam 6, U-shaped plate 7, diamond connecting rod 8, pipe 9, U-shaped hinged support 10. DETAILED DESCRIPTION

[0022] The preferred solution is Figures 1 to 4As shown, a movable trench support device includes two support plates 2 arranged opposite to each other, a crossbeam 5 is provided on the inner wall of the support plate 2, the crossbeam 5 is connected to a U-shaped hinged support 10, a diamond connecting rod 8 is provided between the two U-shaped hinged supports 10, two diagonal ends of the diamond connecting rod 8 are respectively hinged to the U-shaped hinged support 10, and the other two diagonal ends of the diamond connecting rod 8 are threadedly matched with the screw rod 4. The U-shaped hinged support 10 includes a U-shaped plate 7, and the U-shaped plate 7 is used to be clamped on the crossbeam 5.

[0023] The support plates 1 on both sides are provided with horizontal beams and vertical beams respectively, and the U-shaped hinged support 10 is tightly connected to the horizontal beam. The U-shaped hinged support 10 and the horizontal beam are detachably connected. The diamond connecting rod 8 and the support plate are connected through the U-shaped hinged support 10. The diamond connecting rod 8 can be freely extended and retracted by rotating the screw rod, and the U-shaped steel guide rail and the pulley are used to realize the rapid movable support. The end of the screw rod 4 is provided with a wrench bayonet. By rotating the screw rod 4 with a wrench, the two support plates can be driven to open, which helps to make the support plate close to the inner wall of the groove.

[0024] Specifically, the outer wall of the support plate 2 is provided with a pulley 3, and the pulley 3 is used to slide with the guide rail 1. The inner wall of the support plate 2 is provided with a plurality of vertical beams 6, and the cross beams 5 are welded to the vertical beams 6. At least two cross beams 5 are provided on the inner wall of each support plate 2, and a plurality of diamond-shaped connecting rods 8 are provided between the cross beams 5 located on the same horizontal plane. The guide rail 1 is a U-shaped steel guide rail.

[0025] Specifically, the diamond connecting rod 8 includes four connecting rods, which are connected to form a parallelogram structure through pins, wherein two diagonal pins on the same horizontal plane are connected to the U-shaped hinge support 10, and the other two pins are threadedly matched with the screw rod 4. The screw rod 4 is provided with positive threads and negative threads, and the screw rod 4 is rotated to drive the diamond connecting rod 8 to open and close.

[0026] Working principle:

[0027] The trench support device is installed inside the trench, with the support plates on both sides in close contact with the inner wall of the trench. The screw rod and the diamond connecting rod 8 are installed in combination. The width position of the diamond connecting rod 8 is adjusted according to the trench width. The screw rod is rotated to cause a relative displacement up and down between the diamond connecting rods 8, and the angle changes, thereby realizing the telescopic action of the diamond connecting rod 8. The operator can achieve the purpose of rapid support by moving the support plates.

[0028] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A movable trench support device, comprising two support plates (2) arranged opposite to each other, characterized in that: A crossbeam (5) is provided on the inner wall of the support plate (2), the crossbeam (5) is connected to a U-shaped hinged support (10), a rhombus connecting rod (8) is provided between the two U-shaped hinged supports (10), two diagonal ends of the rhombus connecting rod (8) are respectively hinged to the U-shaped hinged supports (10), and the other two diagonal ends of the rhombus connecting rod (8) are threadedly matched with the screw rod (4).

2. A movable trench support device according to claim 1, characterized in that: The outer wall of the support plate (2) is provided with a pulley (3), and the pulley (3) is used for slidingly cooperating with the guide rail (1).

3. A movable trench support device according to claim 1, characterized in that: A plurality of vertical beams (6) are provided on the inner wall of the support plate (2), and the horizontal beams (5) are welded to the vertical beams (6).

4. A movable trench support device according to claim 3, characterized in that: At least two cross beams (5) are provided on the inner wall of each supporting plate (2), and a plurality of rhombus-shaped connecting rods (8) are provided between the cross beams (5) located on the same horizontal plane.

5. A movable trench support device according to claim 4, characterized in that: The diamond-shaped connecting rod (8) comprises four connecting rods, which are connected to form a parallelogram structure via pins, wherein two diagonal pins on the same horizontal plane are connected to the U-shaped hinge support (10), and the other two pins are threadedly engaged with the screw rod (4).

6. A movable trench support device according to claim 5, characterized in that: A spanner socket is provided at the end of the screw rod (4).

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