Groove excavation supporting device for dam body construction of pumped storage power station

Abstract

The utility model discloses a groove excavation support device for pumped storage power station dam body construction, which comprises a support base, the inner wall of the support base is in sliding connection with a first sliding plate and a second sliding plate, the upper surface of the first sliding plate is fixedly connected with a first protective cylinder, and the upper surface of the second sliding plate is fixedly connected with a second protective cylinder. The opposite faces of the first protection cylinder and the second protection cylinder are provided with the same woven mesh, and the surfaces of the first protection cylinder and the second protection cylinder are provided with adjusting protection mechanisms. The woven mesh is flexible and can protect the surface of the groove to adapt to the surface conditions of different grooves, meanwhile, the woven mesh can adapt to the protection requirement in a long groove, when the woven mesh is not used, the winding barrel is driven by the clockwork spring to rotate reversely to store the woven mesh, occupied space is saved, and when the rotating baffle is in a vertical state, the rotating baffle is rotated by the clockwork spring. The central position of the woven mesh is blocked and supported, and the structural strength of the woven mesh is enhanced.

Description

Technical Field

[0001] This utility model relates to the technical field of engineering construction protection devices, and in particular to a trench excavation support device for the construction of pumped storage power station dams. Background Technology

[0002] The main function of trench excavation support devices is to prevent the trench walls from collapsing and ensure construction safety. By constructing a structure of sufficient strength, the support device ensures the stability of the trench in terms of depth, width, and longitudinal direction, preventing collapse accidents.

[0003] Existing construction support devices typically attach and fix protective plates to one side of the trench to prevent soil landslides during operations. However, the inventors believe that since the protective plates are mostly a single flat surface, if this method is used for all protection, the protective plates will be very long and large when the trench is long, making the support device cumbersome. At the same time, it cannot effectively adapt to the unevenness of different trench surfaces. Therefore, a trench excavation support device for pumped storage power station dam construction is needed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a trench excavation and support device for the construction of pumped storage power station dams.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A trench excavation support device for the construction of a pumped storage power station dam includes a support base. The inner wall of the support base is slidably connected with a first sliding plate and a second sliding plate. A first protective cylinder is fixedly connected to the upper surface of the first sliding plate, and a second protective cylinder is fixedly connected to the upper surface of the second sliding plate. The same woven mesh is installed on the opposite surfaces of the first and second protective cylinders. An adjustment and protection mechanism is provided on the surfaces of the first and second protective cylinders.

[0007] The adjustment and protection mechanism includes clearance holes on the surfaces of the first and second protective cylinders. The inner bottom walls of the first and second protective cylinders are rotatably connected to winding cylinders. The inner bottom wall of the first protective cylinder is fixedly connected to a fixed shaft. A spring is fixedly connected to the surface of the fixed shaft. The other end of the spring is fixedly connected to the inner wall of the winding cylinder.

[0008] Preferably, a plurality of partitions are fixedly connected to the surface of the winding cylinder, and the surface of each partition is provided with a plurality of recesses. The surface of the woven mesh is fixedly connected to the surface of a pair of winding cylinders.

[0009] Preferably, the surfaces of the first and second sliding plates are fixedly connected to a connecting plate, the inner wall of the connecting plate is slidably connected to a positioning pin, and the upper surface of the support base is provided with multiple slots, the positioning pins being adapted to the slots.

[0010] Preferably, the upper surface of the support base is provided with a storage groove, the inner wall of the storage groove is rotatably connected with a baffle, the upper surface of the support base is fixedly connected with a positioning block, the inner wall of the positioning block is threadedly connected with a threaded rod, and one end of the threaded rod is fixedly connected with a pressing head.

[0011] Preferably, a pair of support plates are fixedly connected to the surface of the support base, and a plurality of threaded sleeves are fixedly connected to the inner walls of the pair of support plates, and a positioning pin is threadedly connected to the inner walls of the plurality of threaded sleeves.

[0012] Preferably, a pair of casters are installed on the lower surface of the support base, and the bottom height of the support plate is greater than the lowest point height of the casters.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The woven mesh is flexible and protects the surface of the trench to adapt to different surface conditions. At the same time, the woven mesh can adapt to the protection needs of long trenches. When not in use, the winding drum is reversed by the spring to store the woven mesh, saving space. When the rotating baffle is in a vertical position, it blocks and supports the center of the woven mesh, strengthening the structural strength of the woven mesh.

[0015] 2. Multiple partitions can wrap and store the horizontal woven strips that make up the surface of the woven net, and multiple recessed holes can wrap and store the vertical woven strips that make up the surface of the woven net, ensuring that the woven net is positioned stably after being stored. The operator can rotate the positioning nails and drive them deep into the soil to ensure that the support base will not tip over after being stressed. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the woven mesh in this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Support base; 2. Second slide plate; 3. First slide plate; 4. Support plate; 5. Caster wheel; 6. First protective cylinder; 7. Second protective cylinder; 8. Braided mesh; 9. Slot; 10. Threaded sleeve; 11. Positioning pin; 12. Baffle; 13. Connecting plate; 14. Positioning pin; 15. Fixed shaft; 16. Spring; 17. Clearance hole; 18. Winding cylinder; 19. Partition; 20. Recessed hole; 21. Threaded rod; 22. Positioning block; 23. Extrusion head; 24. Storage slot. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A trench excavation support device for the construction of a pumped storage power station dam includes a support base 1. The inner wall of the support base 1 is slidably connected with a first sliding plate 3 and a second sliding plate 2. A first protective cylinder 6 is fixedly connected to the upper surface of the first sliding plate 3, and a second protective cylinder 7 is fixedly connected to the upper surface of the second sliding plate 2. The same woven mesh 8 is installed on the opposite surfaces of the first protective cylinder 6 and the second protective cylinder 7. Adjustable protective mechanisms are provided on the surfaces of the first protective cylinder 6 and the second protective cylinder 7.

[0023] The adjustment and protection mechanism includes clearance holes 17 on the surfaces of the first protective cylinder 6 and the second protective cylinder 7. The inner bottom walls of the first protective cylinder 6 and the second protective cylinder 7 are rotatably connected to a winding cylinder 18. The inner bottom wall of the first protective cylinder 6 is fixedly connected to a fixed shaft 15. A spring 16 is fixedly connected to the surface of the fixed shaft 15. The other end of the spring 16 is fixedly connected to the inner wall of the winding cylinder 18.

[0024] In this invention, the distance between the first protective cylinder 6 and the second protective cylinder 7 is adjusted by setting the first sliding plate 3 and the second sliding plate 2. The woven mesh 8 is flexible and protects the surface of the groove to adapt to different surface conditions of the groove. At the same time, the woven mesh 8 can adapt to the protection needs in longer grooves. The avoidance hole 17 provides space avoidance for the use or storage of the woven mesh 8. The winding cylinder 18 is provided so that when the woven mesh 8 is not in use, it can be stored and wound on the surface of the winding cylinder 18 to save space. The spring 16 is provided to drive the winding cylinder 18 to reverse and store the woven mesh 8.

[0025] Multiple partitions 19 are fixedly connected to the surface of the winding cylinder 18. Multiple recesses 20 are opened on the surface of the multiple partitions 19. The surface of the woven mesh 8 is fixedly connected to the surface of a pair of winding cylinders 18.

[0026] In this invention, multiple partitions 19 are provided to wind and store the transverse woven strips that make up the surface of the woven mesh 8, and multiple recessed holes 20 are provided to wind and store the longitudinal woven strips that make up the surface of the woven mesh 8.

[0027] Both the first slide plate 3 and the second slide plate 2 are fixedly connected to a connecting plate 13. The inner wall of the connecting plate 13 is slidably connected to a positioning pin 14. The upper surface of the support base 1 is provided with multiple slots 9, and the positioning pin 14 is adapted to the slots 9.

[0028] In this utility model, by setting the connecting plate 13, the positioning pin 14 is driven to move together. By setting the positioning pin 14, it is positioned corresponding to the slot 9, thus maintaining the limit on the first slide plate 3 or the second slide plate 2.

[0029] The upper surface of the support base 1 is provided with a storage groove 24. The inner wall of the storage groove 24 is rotatably connected with a baffle 12. The upper surface of the support base 1 is fixedly connected with a positioning block 22. The inner wall of the positioning block 22 is threadedly connected with a threaded rod 21. One end of the threaded rod 21 is fixedly connected with a pressing head 23.

[0030] In this invention, by setting a baffle 12, when the baffle 12 is rotated to a vertical state, it blocks and supports the center position of the woven mesh 8, thereby strengthening the structural strength of the woven mesh 8. By setting a threaded rod 21, rotating the threaded rod 21 changes the position of the extrusion head 23. By setting the extrusion head 23, the surface of the baffle 12 is squeezed and rubbed to prevent the baffle 12 from rotating.

[0031] A pair of support plates 4 are fixedly connected to the surface of the support base 1. Multiple threaded sleeves 10 are fixedly connected to the inner walls of the pair of support plates 4. Positioning pins 11 are threadedly connected to the inner walls of the multiple threaded sleeves 10.

[0032] In this utility model, by setting a support plate 4 and installing multiple threaded sleeves 10, and by setting a positioning nail 11, the operator can rotate the positioning nail 11 to drive it deep into the soil, so that the support base 1 will not tip over after being subjected to force.

[0033] A pair of casters 5 are installed on the lower surface of the support base 1, and the bottom height of the support plate 4 is greater than the lowest point height of the casters 5.

[0034] In this utility model, a pair of universal wheels 5 are provided to drive the support base 1 to move as a whole. By setting the bottom height of the support plate 4 to be greater than the lowest point height of the universal wheels 5, the normal movement of the support base 1 is not affected.

[0035] Working principle: In use, after moving the support base 1 to a suitable position, the operator releases the positioning pin 14 from the slot 9 and slides the first sliding plate 3 and the second sliding plate 2. The movement of the first sliding plate 3 drives the first protective cylinder 6 to move, and the movement of the second sliding plate 2 drives the second protective cylinder 7 to move. When the first protective cylinder 6 moves, the braided mesh 8 originally wrapped around the winding cylinder 18 is pulled out from the clearance hole 17. Similarly, when the second protective cylinder 7 moves, the braided mesh 8 originally wrapped around the winding cylinder 18 is pulled out from the clearance hole 17. The braided mesh 8 is flexible and adaptable to the surface of the groove. To provide protection, the woven mesh 8 is adapted to the surface conditions of different trenches. It can also adapt to the protection needs in longer trenches. After adjusting to the appropriate position, the positioning pin 14 is inserted into the corresponding slot 9 for positioning and fixing. Then, the baffle 12 is rotated to block and support the center position of the woven mesh 8, thereby strengthening the structural strength of the woven mesh 8. The surface of the baffle 12 is squeezed and rubbed by the extrusion head 23 to prevent the baffle 12 from rotating. Then, the positioning nail 11 is rotated and descends into the soil to ensure that the support base 1 does not tip over after being subjected to force.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A trench excavation support device for the construction of a pumped storage power station dam, comprising a support base (1), characterized in that, The inner wall of the support base (1) is slidably connected to a first sliding plate (3) and a second sliding plate (2). A first protective cylinder (6) is fixedly connected to the upper surface of the first sliding plate (3), and a second protective cylinder (7) is fixedly connected to the upper surface of the second sliding plate (2). The same woven mesh (8) is installed on the opposite surfaces of the first protective cylinder (6) and the second protective cylinder (7). An adjustment protection mechanism is provided on the surfaces of the first protective cylinder (6) and the second protective cylinder (7). The adjustment and protection mechanism includes clearance holes (17) on the surfaces of the first protective cylinder (6) and the second protective cylinder (7). The inner bottom walls of the first protective cylinder (6) and the second protective cylinder (7) are rotatably connected to a winding cylinder (18). The inner bottom wall of the first protective cylinder (6) is fixedly connected to a fixed shaft (15). A spring (16) is fixedly connected to the surface of the fixed shaft (15). The other end of the spring (16) is fixedly connected to the inner wall of the winding cylinder (18).

2. The trench excavation and support device for pumped storage power station dam construction according to claim 1, characterized in that, Multiple partitions (19) are fixedly connected to the surface of the winding cylinder (18), and multiple recesses (20) are opened on the surface of the multiple partitions (19). The surface of the woven mesh (8) is fixedly connected to the surface of a pair of winding cylinders (18).

3. The trench excavation and support device for pumped storage power station dam construction according to claim 1, characterized in that, The surfaces of the first slide plate (3) and the second slide plate (2) are fixedly connected to a connecting plate (13). The inner wall of the connecting plate (13) is slidably connected to a positioning pin (14). The upper surface of the support base (1) is provided with multiple slots (9). The positioning pin (14) is adapted to the slot (9).

4. The trench excavation and support device for pumped storage power station dam construction according to claim 1, characterized in that, The upper surface of the support base (1) is provided with a storage groove (24), and the inner wall of the storage groove (24) is rotatably connected with a baffle (12). The upper surface of the support base (1) is fixedly connected with a positioning block (22), and the inner wall of the positioning block (22) is threadedly connected with a threaded rod (21). One end of the threaded rod (21) is fixedly connected with a pressing head (23).

5. A trench excavation and support device for pumped storage power station dam construction according to claim 1, characterized in that, A pair of support plates (4) are fixedly connected to the surface of the support base (1). Multiple threaded sleeves (10) are fixedly connected to the inner walls of the pair of support plates (4). Positioning pins (11) are threadedly connected to the inner walls of the multiple threaded sleeves (10).

6. A trench excavation and support device for pumped storage power station dam construction according to claim 5, characterized in that, A pair of casters (5) are installed on the lower surface of the support base (1), and the bottom height of the support plate (4) is greater than the lowest point height of the casters (5).

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