Slope protection excavation folding main beam directional extension driving device

Abstract

The utility model relates to the technical field of slope protection construction, in particular to a slope protection excavation folding main beam directional extension driving device which comprises a double-foot support, the double-foot support comprises a pair of supporting legs rotationally connected to adjacent main beams, the other ends of the pair of supporting legs obliquely extend towards one side and are hinged to each other, and the hinged position is rotationally connected with a driving telescopic rod. The folding beam assembly has the advantages that the double-foot support is matched with the driving telescopic rod, the purposes of fixed-point supporting and driving rotation are achieved, the folding beam assembly is supported by the double-foot support through rotating connection between the double-foot support and the folding beam assembly, and therefore the folding beam assembly is convenient to use. According to the invention, a pair of adjacent beams are pulled and limited and are prevented from falling off, and angle deflection is realized by utilizing the telescopic driving of the driving telescopic rod, so that stable folding and unfolding are realized, a rotary connecting piece between the main beams is prevented from bearing relatively large rotary supporting torsion, and the driving safety and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of slope protection construction technology, specifically to a directional extension drive device for a folding main beam during slope protection excavation. Background Technology

[0002] To lock in the soil on the slopes of roads, slope protection is usually required. The slope protection needs to be decorated with a frame. The main types of frame slope protection are: arch frame, herringbone frame, diamond frame, rectangular frame, etc.

[0003] In order to adapt to the slope angle and height, it is usually necessary to install a foldable main beam device, which can be folded to adapt to the length and angle of the slope slope.

[0004] However, the existing folding main beams are all steel structures, which are quite heavy. During the angle adjustment process, one end of the folding beam is suspended on the slope, and its center of gravity shifts. Therefore, when the rotation drive is used to unfold or retract the beam, the common driving method is motor-driven rotation or hydraulic / pneumatic-driven rotation. This requires the driving components to withstand a large rotational torque, which can easily cause deformation and twisting at the rotation connection position. Moreover, the adjustment angle is difficult to control, which can easily cause the beam to fall off under the action of gravity. Utility Model Content

[0005] The purpose of this invention is to provide a directional extension drive device for a folding main beam used in slope protection excavation, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A slope protection excavation folding main beam directional extension drive device includes a folding beam assembly and a drive assembly. The folding beam assembly unfolds along the inclined surface of the slope protection. The folding beam assembly includes three sets of main beams rotatably connected to each other. One end of the main beam of the folding beam assembly is connected to a rotating seat located at the lower end of the slope protection. The rotating seat is provided with an angle adjustment rod that drives the main beam to rotate. Each of the three sets of main beams is provided with a double-leg support at the connection position. The double-leg support includes a pair of legs rotatably connected to adjacent main beams. The other end of the pair of legs extends inclined to one side and is hinged to each other. A drive telescopic rod is rotatably connected at the hinge position. The telescopic end of the drive telescopic rod is connected to the main beam on the side opposite to the inclined direction of the legs.

[0008] Preferably, the three sets of main beams are a rotating beam, a middle beam, and a free end beam, and the rotating beam, the middle beam, and the free end beam are rotatably connected by a connecting seat.

[0009] Preferably, one end of the rotating beam is rotatably mounted on the rotating seat, one end of the angle adjusting rod is rotatably mounted on the rotating seat, and the telescopic end of the angle adjusting rod is rotatably connected to the rotating beam.

[0010] Preferably, the drive telescopic rod sleeve section disposed between the rotating beam and the intermediate beam is rotatably mounted on the double-leg bracket, and the rotatable mounting position is located on the side close to the telescopic end of the drive telescopic rod.

[0011] Preferably, the drive telescopic rod sleeve section disposed between the intermediate beam and the free end beam is rotatably mounted on the double-leg bracket, and the rotatable mounting position is located on the side away from the telescopic end of the drive telescopic rod.

[0012] Preferably, the lower end of the folding beam assembly is provided with a supporting movable member, which is vertically supported on the lower end surface of the folding beam assembly and moves synchronously with the rotating seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention achieves fixed-point support and rotation by designing a combination of a double-leg bracket and a drive telescopic rod. The rotational connection between the double-leg bracket and the folding beam assembly enables traction and limiting of adjacent beams to prevent them from falling off. Furthermore, the extension and retraction of the drive telescopic rod drives the angle to deflect, thereby achieving stable folding and unfolding. This avoids the rotating connecting parts between the main beams bearing large rotational support torque, improving the safety and stability of the drive. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the folding structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the unfolded structure of the rotating beam of this utility model;

[0017] Figure 3 This is a schematic diagram of the unfolded structure of the folding beam assembly of this utility model.

[0018] In the diagram: 1. Rotating seat; 2. Rotating beam; 3. Middle beam; 4. Free end beam; 5. Connecting seat; 6. Support moving part; 7. Double-leg bracket; 8. Drive telescopic rod; 10. Angle adjustment rod. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 3 This utility model provides a technical solution:

[0021] Example 1: A directional extension drive device for a folding main beam in slope excavation includes a folding beam assembly and a drive assembly. The folding beam assembly unfolds along the inclined surface of the slope. The folding beam assembly includes three sets of main beams that are rotatably connected to each other. One end of the main beam of the folding beam assembly is connected to a rotating seat 1 located at the lower end of the slope. An angle adjustment rod 10 for driving the main beam to rotate is provided on the rotating seat 1. The three sets of main beams are a rotating beam 2, a middle beam 3, and a free end beam 4. The rotating beam 2, the middle beam 3, and the free end beam 4 are rotatably connected to each other through a connecting seat 5. One end of the rotating beam 2 is rotatably mounted on the rotating seat 1, and one end of the angle adjustment rod 10 is rotatably mounted on the rotating seat 1. The telescopic end of the angle adjustment rod 10 is rotatably connected to the rotating beam 2.

[0022] By setting the connecting seat 5, the rotational connection between the three main beams is realized. By setting the rotating seat 1, the folding beam assembly is rotated and installed. Then, the angle adjustment rod 10 is used to drive the rotating beam 2 to unfold and adjust it to an angle parallel to the slope protection, which facilitates subsequent unfolding.

[0023] Each of the three main beams is equipped with a double-leg support 7 at its connection point. The double-leg support 7 includes a pair of legs that are rotatably connected to the adjacent main beams.

[0024] By connecting a pair of legs to the adjacent main beams, the rotation angle between the adjacent main beams is traction and limitation is achieved, thus avoiding direct force on the connecting seat 5.

[0025] The other end of a pair of outriggers extends to one side at an angle and is hinged to each other. A drive telescopic rod 8 is rotatably connected at the hinged position. The telescopic end of the drive telescopic rod 8 is connected to the main beam on the side opposite to the angle of the outriggers.

[0026] By using the telescopic drive of the telescopic rod 8, the tilting of a pair of outriggers on one side can be achieved, thereby realizing the angle adjustment between adjacent main beams.

[0027] Working principle: First, by setting the connecting seat 5, the rotational connection between the three main beams is realized, so that the folding beam assembly can be unfolded along the slope. The angle adjustment rod 10 drives the rotating beam 2 to unfold and adjust it to an angle parallel to the slope, which facilitates subsequent unfolding. Through the connection between a pair of legs and the adjacent main beams, the rotation angle between the adjacent main beams is pulled and limited. By using the extension and retraction drive of the telescopic rod 8, the unilateral tilting of a pair of legs is realized, thereby realizing the angle adjustment between the adjacent main beams.

[0028] Example 2: Based on Example 1, the drive telescopic rod 8 sleeve segment set between the rotating beam 2 and the intermediate beam 3 is rotatably installed on the double-leg bracket 7, and the rotatable installation position is located on the side close to the telescopic end of the drive telescopic rod 8; the drive telescopic rod 8 sleeve segment set between the intermediate beam 3 and the free end beam 4 is rotatably installed on the double-leg bracket 7, and the rotatable installation position is located on the side away from the telescopic end of the drive telescopic rod 8.

[0029] Since the rotating beam 2, the middle beam 3, and the free end beam 4 are in a relatively parallel state after being folded and stored, the rotating beam 2 and the middle beam 3 rotate and fit together in opposite directions, while the middle beam 3 and the free end beam 4 rotate and fit together in opposite directions. Therefore, when the rotating beam 2 and the middle beam 3 are unfolded, the telescopic rod 8 needs to be driven a relatively long distance, while the middle beam 3 and the free end beam 4 only need to be extended and retracted a short distance to be unfolded.

[0030] After the angle adjustment rod 10 is adjusted, the angle of the rotating beam 2 is fixed. At this time, the double-leg bracket 7 located between the rotating beam 2 and the middle beam 3 is connected to the drive telescopic rod 8. The rotating position is close to the telescopic end, ensuring that the drive telescopic rod 8 has the maximum telescopic length when it is extended and retracted. The connection point between the double-leg bracket 7 between the middle beam 3 and the free end beam 4 and the drive telescopic rod 8 is opposite.

[0031] The lower end of the folding beam assembly is provided with a support moving part 6, which is vertically supported on the lower end surface of the folding beam assembly and moves synchronously with the rotating seat 1.

[0032] By setting up the support movable part 6, the support located near the center of gravity is improved when the extension drive is deployed or retracted, thus avoiding breakage caused by the center of gravity shift and improving the safety of the drive.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slope protection excavation folding main beam directional extension drive device, comprising a folding beam assembly and a drive assembly, wherein the folding beam assembly unfolds along the inclined surface of the slope protection, characterized in that: The folding beam assembly includes three sets of main beams that are rotatably connected to each other. One end of the main beam of the folding beam assembly is connected to a rotating seat (1) located at the lower end of the slope protection. An angle adjustment rod (10) for driving the main beam to rotate is provided on the rotating seat (1). A double-leg bracket (7) is provided at the connection position of the three sets of main beams. The double-leg bracket (7) includes a pair of legs that are rotatably connected to the adjacent main beams. The other end of the pair of legs extends to one side and is hinged to each other. A drive telescopic rod (8) is rotatably connected at the hinge position. The telescopic end of the drive telescopic rod (8) is connected to the main beam on the side opposite to the tilt direction of the legs.

2. The slope protection excavation folding main beam directional extension drive device according to claim 1, characterized in that: The three sets of main beams are a rotating beam (2), a middle beam (3), and a free end beam (4), which are rotatably connected by a connecting seat (5).

3. The slope protection excavation folding main beam directional extension drive device according to claim 2, characterized in that: One end of the rotating beam (2) is rotatably mounted on the rotating seat (1), and one end of the angle adjusting rod (10) is rotatably mounted on the rotating seat (1). The telescopic end of the angle adjusting rod (10) is rotatably connected to the rotating beam (2).

4. The slope protection excavation folding main beam directional extension drive device according to claim 3, characterized in that: The drive telescopic rod (8) sleeve section between the rotating beam (2) and the intermediate beam (3) is rotatably mounted on the double-leg bracket (7), and the rotatable mounting position is located on the side close to the telescopic end of the drive telescopic rod (8).

5. The slope protection excavation folding main beam directional extension drive device according to claim 4, characterized in that: The drive telescopic rod (8) sleeve section between the intermediate beam (3) and the free end beam (4) is rotatably mounted on the double-leg bracket (7), and the rotatable mounting position is located away from the telescopic end of the drive telescopic rod (8).

6. The slope protection excavation folding main beam directional extension drive device according to claim 1, characterized in that: The lower end of the folding beam assembly is provided with a support moving part (6), which is vertically supported on the lower end surface of the folding beam assembly and moves synchronously with the rotating seat (1).

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