Folding main beam free end supporting assembly adaptive to slope protection excavation

Abstract

The utility model relates to the technical field of slope protection construction, in particular to a folding main beam free end supporting assembly matched with slope protection excavation, which comprises a lifting rod and a step rod, the upper end of the lifting rod is provided with the step rod inserted on a rotating arm in a penetrating manner, and the upper end of the step rod is provided with an upper tray; the rapid limiting device has the beneficial effects that the inclined rotating plate is extruded during insertion, and after insertion is completed, the inclined rotating plate elastically pops up and abuts against the upper end of the rotating arm, so that the purpose of rapid limiting is achieved, separation is avoided, and during disassembly, only the inclined rotating plate needs to be extruded to enable the inclined rotating plate to elastically rotate and contract, so that the rapid limiting device is simple in structure and convenient to use. Therefore, the connection and disassembly efficiency between the free end beam and the skip car is improved, the cost is reduced, and the construction precision and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of slope protection construction technology, specifically to a folding main beam free end support component adapted to slope protection excavation. Background Technology

[0002] During slope protection construction, in order to adapt to the slope's tilt angle and length, a rotating, foldable, or telescopic main beam is usually installed as an operating platform.

[0003] However, for folding beam structures with adjustable angles, one end is rotated and installed, while the other end becomes a suspended free end, which leads to a shift in the center of gravity. This causes the main beam structure to sway or shift during construction or hoisting and transportation, especially at the free end, where it is very easy to shift and sway, thus affecting the accuracy of construction.

[0004] Existing supports for the free end require separate design of support components that move synchronously with the main beam. This not only increases costs but also wastes upper space. Therefore, the best approach is to connect the free end to a material cart that moves synchronously above. However, the material cart needs to be removed for replenishment after the material is used up, so it is necessary to enable quick assembly and disassembly between the material cart and the free end. Utility Model Content

[0005] The purpose of this invention is to provide a folding main beam free end support assembly adapted for slope protection excavation, so as 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 folding main beam free end support assembly adapted for slope excavation includes a folding beam assembly and a support assembly. The folding beam assembly unfolds along the inclined surface of the slope, and a movable rotating base is provided at one end of the folding beam assembly located at the lower end of the slope. A rotating arm is rotatably mounted at one end of the folding beam assembly located at the upper end of the slope. A material cart is provided below the rotating arm, and a support assembly is provided on the material cart facing the rotating arm. The support assembly includes a lifting rod and a step rod. A step rod is provided at the upper end of the lifting rod and inserted through it onto the rotating arm. An upper tray is provided at the upper end of the step rod, and an inclined rotating plate is elastically rotatably mounted at the lower end of the upper tray, abutting against the upper end of the rotating arm.

[0008] Preferably, the folding beam assembly includes a main beam, an intermediate beam, and a free end beam. The main beam, intermediate beam, and free end beam are rotatably folded together. One end of the rotating arm is rotatably mounted on the end of the free end beam. The rotating arm is flush with the upper plane of the slope protection. The lower end of the folding beam assembly is provided with a moving device supported on the inclined surface of the upper end of the slope protection. The moving device, the material cart, and the rotating base move synchronously.

[0009] Preferably, the rotating arm has a through-hole, and the stepped rod is inserted into the through-hole. The outer diameter of the thicker lower end of the stepped rod is equal to the inner diameter of the through-hole, and the outer diameter of the thinner upper end of the stepped rod is smaller than the inner diameter of the through-hole.

[0010] Preferably, a lower tray is sleeved at the lower end of the step rod, the lower tray is in contact with the lower end face of the rotating arm, and a first spring is pressed between the lower tray and the upper end of the lifting rod.

[0011] Preferably, the upper end of the stepped rod is provided with a top plate with an outer diameter equal to that of the insertion hole, and a second spring is pressed between the top plate and the upper tray.

[0012] Preferably, the lower end of the upper tray is provided with a collar, and the outer arc of the collar is provided with a plurality of connecting rods arranged in a circumferential array and connected to the upper tray. An inclined rotating plate is rotatably installed in the gap between adjacent connecting rods, and the lower end of the inclined rotating plate is provided with an arc surface that abuts against the rotating arm.

[0013] Preferably, a third spring is pressed between the inclined rotating plate and the upper thin rod of the stepped rod. One end of the third spring is fixed to the outer arc wall of the upper thin rod of the stepped rod, and the other end of the third spring is fixed to the inner wall of the inclined rotating plate.

[0014] Preferably, the upper end of the stepped rod has an inner cavity, in which a connecting plate driven by a driving adjustment rod is installed. The inner wall of the inner cavity has a through hole corresponding to the third spring. A pull rope is sleeved on the third spring. One end of the pull rope is connected to the inner wall of the inclined rotating plate. The pull rope extends along the through hole and is fixed on the connecting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes the cooperation of a support assembly and a rotating arm to achieve a rapid connection between the free end beam and the material cart via the lifting drive of a lifting rod. During connection, the inclined rotating plate is squeezed; after connection, the inclined rotating plate springs out elastically and rests against the upper end of the rotating arm, achieving rapid positioning and preventing detachment. During disassembly, simply squeezing the inclined rotating plate causes it to elastically rotate and retract, thereby improving the efficiency of connection and disassembly between the free end beam and the material cart, reducing costs, and improving construction accuracy and stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the construction structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the support component of this utility model.

[0020] In the diagram: 1. Rotating base; 2. Main beam; 3. Intermediate beam; 4. Free end beam; 5. Rotating arm; 6. Material cart; 7. Moving device; 8. Lifting rod; 9. Step rod; 10. Lower pallet; 11. First spring; 12. Insertion hole; 13. Connecting disc; 14. Top plate; 15. Drive adjustment rod; 16. Second spring; 17. Collar; 18. Inclined rotating plate; 19. Pull rope; 20. Third spring; 21. Upper pallet. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 3 This utility model provides a technical solution:

[0023] A folding main beam free end support assembly adapted for slope excavation includes a folding beam assembly and a support assembly. The folding beam assembly unfolds along the inclined surface of the slope, and a movable rotating base 1 is provided at one end of the folding beam assembly located at the lower end of the slope. A rotating arm 5 is rotatably installed at one end of the folding beam assembly located at the upper end of the slope. A material cart 6 is provided below the rotating arm 5. The folding beam assembly includes a main beam 2, an intermediate beam 3, and a free end beam 4. The main beam 2, intermediate beam 3, and free end beam 4 are rotatably folded and connected. One end of the rotating arm 5 is rotatably installed at the end of the free end beam 4. The rotating arm 5 is flush with the upper plane of the slope. A moving device 7 is provided at the lower end of the folding beam assembly and is supported on the inclined surface of the upper slope. The moving device 7, the material cart 6, and the rotating base 1 move synchronously.

[0024] By setting the folding beam assembly to adapt to the slope's tilt angle and length, and by setting synchronous movement, long-distance continuous construction can be achieved.

[0025] The material cart 6 is equipped with a support assembly facing the rotating arm 5. The support assembly includes a lifting rod 8 and a step rod 9. The upper end of the lifting rod 8 is provided with a step rod 9 that is inserted through the rotating arm 5. The rotating arm 5 is provided with a through hole 12, and the step rod 9 is inserted into the through hole 12. The outer diameter of the thicker lower end of the step rod 9 is equal to the inner diameter of the through hole 12, and the outer diameter of the thinner upper end of the step rod 9 is smaller than the inner diameter of the through hole 12.

[0026] By setting the insertion hole 12, the step rod 9 is inserted and installed along the rotating arm 5 under the lifting drive of the lifting rod 8.

[0027] The upper end of the step rod 9 is provided with an upper tray 21, and the lower end of the step rod 9 is sleeved with a lower tray 10. The lower tray 10 fits against the lower end face of the rotating arm 5. A first spring 11 is pressed between the lower tray 10 and the upper end of the lifting rod 8. The upper end of the step rod 9 is provided with a top plate 14 with an outer diameter equal to that of the insertion hole 12. A second spring 16 is pressed between the top plate 14 and the upper tray 21.

[0028] By setting a first spring 11 and a second spring 16 at the upper and lower ends of the rotating arm 5 respectively, the arm can be buffered up and down to prevent the free end beam 4 from bending excessively.

[0029] An inclined rotating plate 18 is elastically rotatably mounted on the lower end of the upper tray 21 and abuts against the upper end of the rotating arm 5. A collar 17 is provided at the lower end of the upper tray 21. Multiple sets of connecting rods connected to the upper tray 21 are arranged in a circular array on the outer arc of the collar 17. An inclined rotating plate 18 is rotatably mounted in the gap between adjacent connecting rods. An arc surface that abuts against the rotating arm 5 is provided at the lower end of the inclined rotating plate 18.

[0030] The tilting plate 18 is rotated and installed by setting a collar 17.

[0031] A third spring 20 is pressed between the inclined rotating plate 18 and the upper thin rod of the stepped rod 9. One end of the third spring 20 is fixed to the outer arc wall of the upper thin rod of the stepped rod 9, and the other end of the third spring 20 is fixed to the inner wall of the inclined rotating plate 18.

[0032] By setting a third spring 20, the tilting plate 18 is elastically rotated and installed. Under the restoring force of the third spring 20, the tilting plate 18 expands outward, thereby rotating to the outside of the insertion hole 12 and abutting against the upper end face of the rotating arm 5 to prevent it from falling off.

[0033] The upper thin rod of the stepped rod 9 has an inner cavity inside, and a connecting plate 13 driven by the driving adjustment rod 15 is installed in the inner cavity. The inner wall of the inner cavity has a through hole corresponding to the third spring 20. A pull rope 19 is sleeved on the third spring 20. One end of the pull rope 19 is connected to the inner wall of the inclined rotating plate 18. The pull rope 19 extends along the through hole and is fixed on the connecting plate 13.

[0034] By setting up the coordination of the drive adjustment rod 15, the connecting plate 13 and the pull rope 19, the integrated drive of multiple sets of tilting rotating plates 18 is realized. The drive adjustment rod 15 drives the connecting plate 13 to descend, thereby achieving the purpose of pulling the pull rope 19. Under the traction of the pull rope 19, the tilting rotating plate 18 rotates and retracts towards the step rod 9, so that it retracts to the inside of the insertion hole 12, thereby facilitating the descent and extraction of the lifting rod 8, and realizing the purpose of automated disassembly.

[0035] Working principle: First, the folding beam assembly is unfolded along the slope. Then, the rotating arm 5 at the end of the free end beam 4 is rotated and unfolded. After the material cart 6 loads the raw material, it moves to the position corresponding to the folding beam assembly. At this time, the lifting rod 8 drives the step rod 9 to rise. During the insertion process, the insertion hole 12 is used to press the upper outer wall of the inclined rotating plate 18, driving it to rotate and retract. As the insertion continues, the inclined rotating plate 18 encounters the upper end of the rotating arm 5 and unfolds under the action of the spring. The inclined rotating plate 18 expands outward, thereby rotating to the outside of the insertion hole 12 and abutting against the upper end face of the rotating arm 5 to prevent it from falling off.

[0036] At this point, the material cart 6 is integrated with the folding beam assembly, ensuring their synchronous movement and facilitating the synchronization of subsequent construction and material hoisting.

[0037] However, when the material cart 6 runs out of raw materials and needs to be unloaded, the connecting disc 13 is lowered by driving the adjusting rod 15 to pull the rope 19. Under the pull of the rope 19, the tilting plate 18 rotates and retracts to the side of the step rod 9, so that it retracts to the inside of the insertion hole 12, which facilitates the lowering and extraction of the lifting rod 8, thus achieving the purpose of automated disassembly.

[0038] 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 folding main beam free end support assembly adapted for slope excavation, comprising a folding beam assembly and a support assembly, wherein the folding beam assembly unfolds along the inclined surface of the slope, and a movable rotating base (1) is provided at one end of the folding beam assembly located at the lower end of the slope, and a rotating arm (5) is provided at one end of the folding beam assembly located at the upper end of the slope, characterized in that: A material cart (6) is provided below the rotating arm (5). A support assembly is provided on the material cart (6) facing the rotating arm (5). The support assembly includes a lifting rod (8) and a step rod (9). The upper end of the lifting rod (8) is provided with a step rod (9) that is inserted through the rotating arm (5). The upper end of the step rod (9) is provided with an upper tray (21). The lower end of the upper tray (21) is elastically rotatably mounted with an inclined rotating plate (18) that abuts against the upper end of the rotating arm (5).

2. The folding main beam free end support assembly adapted for slope protection excavation according to claim 1, characterized in that: The folding beam assembly includes a main beam (2), a middle beam (3) and a free end beam (4). The main beam (2), the middle beam (3) and the free end beam (4) are rotatably folded together. One end of the rotating arm (5) is rotatably installed at the end of the free end beam (4). The rotating arm (5) is flush with the upper plane of the slope. The lower end of the folding beam assembly is provided with a moving device (7) supported on the upper inclined surface of the slope. The moving device (7), the material cart (6) and the rotating base (1) move synchronously.

3. The folding main beam free end support assembly adapted for slope protection excavation according to claim 1, characterized in that: The rotating arm (5) has a through hole (12), and the step rod (9) is inserted into the through hole (12). The outer diameter of the thicker part of the lower end of the step rod (9) is equal to the inner diameter of the through hole (12), and the outer diameter of the thinner part of the upper end of the step rod (9) is smaller than the inner diameter of the through hole (12).

4. The folding main beam free end support assembly adapted for slope protection excavation according to claim 3, characterized in that: The lower end of the step rod (9) is fitted with a lower tray (10), which is in contact with the lower end face of the rotating arm (5). A first spring (11) is pressed between the lower tray (10) and the upper end of the lifting rod (8).

5. The folding main beam free end support assembly adapted for slope protection excavation according to claim 4, characterized in that: The upper end of the step rod (9) is provided with a top plate (14) with an outer diameter equal to that of the insertion hole (12), and a second spring (16) is pressed between the top plate (14) and the upper tray (21).

6. The folding main beam free end support assembly adapted for slope protection excavation according to claim 4, characterized in that: The lower end of the upper tray (21) is provided with a collar (17). Multiple sets of connecting rods connected to the upper tray (21) are arranged in a circular array on the outer arc of the collar (17). An inclined rotating plate (18) is rotatably installed in the gap between adjacent connecting rods. The lower end of the inclined rotating plate (18) is provided with an arc surface that abuts against the rotating arm (5).

7. The folding main beam free end support assembly adapted for slope protection excavation according to claim 6, characterized in that: A third spring (20) is pressed between the inclined rotating plate (18) and the upper thin rod of the step rod (9). One end of the third spring (20) is fixed on the outer arc wall of the upper thin rod of the step rod (9), and the other end of the third spring (20) is fixed on the inner wall of the inclined rotating plate (18).

8. The folding main beam free end support assembly adapted for slope protection excavation according to claim 7, characterized in that: The upper end of the stepped rod (9) has an inner cavity, and a connecting plate (13) is provided in the inner cavity, which is driven to rise and fall by the driving adjustment rod (15). The inner wall of the inner cavity has a through hole corresponding to the third spring (20). A pull rope (19) is sleeved on the third spring (20). One end of the pull rope (19) is connected to the inner wall of the inclined rotating plate (18). The pull rope (19) extends along the through hole and is fixed on the connecting plate (13).

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