Folding type crossing frame device

Abstract

The utility model discloses a folding type spanning frame device which comprises spanning frames arranged symmetrically, a sealing net is laid between the tops of the spanning frames, the two ends of the tops of the spanning frames are connected with stay wires and are tensioned through the stay wires, and the other ends of the stay wires are fixed to the ground. The crossing frame comprises supporting bases, an upper supporting assembly, a lower supporting assembly and a buffering assembly. The bottom end of the lower supporting assembly is installed on the symmetrically-arranged supporting bases. The bottom end of the upper supporting assembly is hinged to the top end of the lower supporting assembly through a turnover hinge. By arranging the upper supporting assembly and the lower supporting assembly which are hinged to each other, installation of the crossing frame can be rapidly completed, meanwhile, the height connection relation between the upper supporting assembly and the lower supporting assembly can be adjusted at any time, high flexibility is achieved, and the crossing frame can be suitable for crossing construction of lines with different heights; the assembling time of all the components is shortened, and the installation efficiency of the crossing frame is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crossing frames, and specifically designs a foldable crossing frame device. Background Art

[0002] With the continuous upgrading of my country's power grid and transportation infrastructure construction, the problems of crossing construction of transmission lines have gradually increased. Crossing construction involves greater risks and difficulty, and is affected by factors such as complex terrain. Moreover, as more lines are put into operation, it is required to shorten construction time while ensuring construction safety, which further increases the requirements for the efficiency and safety of crossing construction.

[0003] Chinese patent CN203813323U discloses a foldable support frame for a transmission line spanning structure. The frame comprises a telescopic arm driven by a power mechanism, comprising a first-stage arm, several intermediate-stage arm sections, and a final-stage arm, which are sequentially connected from the outside inward. Side ears are fixedly connected to the left and right sides of the front and rear ends of the first-stage arm, and the left and right sides of the front ends of the intermediate-stage arm and the final-stage arm. The side ears are hingedly connected to a sway bar that extends and folds along the length of the telescopic arm via vertically arranged pins. Positioning holes and locating pins are provided on the side ears and the sway bar adjacent to the pins for positioning the sway bar perpendicular to the telescopic arm. A protective rope net is mounted on the sway bar via evenly spaced pull rings. This utility model overcomes the problem of transmission line terminals easily falling off the pulley in conventional technologies, significantly improving construction efficiency and enhancing the safety of workers and pedestrians during construction. However, the overall operation incurs high transportation costs, and deployment of the support frame is complex and time-consuming. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a foldable crossing frame device, which can simplify the assembly operation of the crossing frame and improve the installation efficiency of the crossing frame.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows.

[0006] A foldable crossing frame device includes symmetrically arranged crossing frames, with a sealing net laid between the tops of the crossing frames, the two ends of the tops of the crossing frames being connected to guy wires and tightened by the guy wires, and the other ends of the guy wires being fixed to the ground; the crossing frame includes a support base, an upper support assembly, a lower support assembly, and a buffer assembly, and the bottom end of the lower support assembly is installed on the symmetrically arranged support base; the bottom end of the upper support assembly is hinged to the top end of the lower support assembly through a flip hinge, and the upper support assembly and the lower support assembly are locked and connected by a reinforcing plate.

[0007] The above-mentioned foldable crossing frame device, the lower support assembly includes two lower support columns, a number of support cross bars evenly spaced are installed between the lower support columns, the bottom ends of the lower support columns are connected to the support base through the bottom plate; a number of reinforcing ribs are arranged between the circumferential side of the bottom ends of the lower support columns and the bottom plate; the outer side of the top end of the lower support column is provided with a first vertical surface threadedly connected to the reinforcing plate.

[0008] In the above-mentioned foldable spanning frame device, the lower supporting column is further provided with a second vertical surface perpendicular to the first vertical surface, and the second vertical surface is provided with an adjustment hole movably connected to one end of the flip hinge.

[0009] The above-mentioned foldable crossing frame device, the upper support assembly includes two upper support columns, and a number of support cross bars evenly spaced are installed between the upper support columns; a vertical plate facing the other upper support column is provided on the top of the upper support column, and the buffer assembly is installed between the two vertical plates; a first vertical surface threadedly connected to the reinforcing plate is provided on the outer side of the bottom end of the upper support column.

[0010] The above-mentioned foldable crossing frame device, the buffer assembly includes a load-bearing plate, a load-bearing block, a central axis and a lateral shifting mechanism installed on both sides of the load-bearing block; the load-bearing plate is arranged at the top of the load-bearing block; outer cover plates are provided on both sides of the central axis and are connected to the vertical plates on the upper support columns through the outer cover plates; the load-bearing block is arranged in an inverted U shape, and a limiting column is provided at the bottom opening of the load-bearing block, and a limiting hole is provided on the limiting column for slidingly fitting with the central axis.

[0011] The above-mentioned foldable crossing frame device, the side shift mechanism includes a connecting rod hinged to the load-bearing block, the other end of the connecting rod is hinged to the connecting plate sleeved on the central axis, an inner end cover is provided on the side of the connecting plate away from the load-bearing block, and a first spring is provided between the inner end cover and the outer cover plate.

[0012] The above-mentioned foldable crossing frame device, the support base includes an upper support plate, a lower support plate, and a second spring. The lower support plate is fixed to the ground by ground nails. The top end surface of the lower support plate and the bottom end surface of the upper support plate are respectively provided with cylindrical sleeves connected to the second spring. The upper support plate and the lower support plate are connected by connecting bolts passing through the cylindrical sleeves. The top end of the connecting bolt passes through the upper support plate and is threadedly connected to the locking nut.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is as follows.

[0014] The utility model provides a foldable crossing frame device, which can quickly complete the installation of the crossing frame by arranging an upper support assembly and a lower support assembly that are hinged to each other. At the same time, the height connection relationship between the upper support assembly and the lower support assembly can be adjusted at any time. It has strong flexibility and can be suitable for the crossing construction of lines at different heights. It shortens the assembly time between the various components, effectively improves the installation efficiency of the crossing frame, and can also save the space occupied by the crossing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the specific structure of the utility model;

[0016] Figure 2 This is the main view of the utility model;

[0017] Figure 3 This is a schematic diagram of the specific structure of the spanning frame of the utility model;

[0018] Figure 4 This is a schematic diagram of the specific structure of the spanning frame of the utility model in the folded state;

[0019] Figure 5 This is a schematic diagram of the specific structure of the buffer assembly of the utility model;

[0020] Figure 6 This is a schematic diagram of the specific structure of the support base of the utility model.

[0021] Among them: 1. Support base, 2. Lower support column, 3. Upper support column, 4. Sealing net, 5. Pull wire, 6. Reinforcement plate, 7. First vertical surface, 8. Second vertical surface, 9. Support cross bar, 10. Flip hinge, 11. Load-bearing plate, 12. Load-bearing block, 13. Outer cover, 14. Inner end cover, 15. Center axis, 16. Connecting plate, 17. Connecting rod, 18. First spring, 19. Limiting column, 20. Limiting hole, 21. Upper support plate, 22. Lower support plate, 23. Ground nail, 24. Locking nut, 24. Second spring, 26. Connecting bolt. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Folding spanning frame device, such as Figures 1 to 6 As shown, it includes symmetrically arranged crossing frames, with a sealing net laid between the tops of the crossing frames. The two ends of the tops of the crossing frames are connected to the tension wire 5 and tightened by the tension wire 5, and the other end of the tension wire is fixed to the ground.

[0024] The crossing frame includes a support base 1, an upper support assembly, a lower support assembly, and a buffer assembly. The bottom end of the lower support assembly is installed on the symmetrically arranged support base 1, the bottom end of the upper support assembly is hinged to the top end of the lower support assembly through a flip hinge, and the buffer assembly is installed on the top of the upper support assembly.

[0025] The lower support assembly includes two lower support columns 2, and a plurality of support cross bars 9 arranged evenly at intervals are installed between the lower support columns 2. The bottom ends of the lower support columns 2 are connected to the support base 1 through a bottom plate.

[0026] A plurality of reinforcing ribs are provided between the bottom end periphery of the lower supporting column 2 and the bottom plate, which can enhance the stability of the lower supporting column 2 .

[0027] The upper support assembly includes two upper support columns 3, and a plurality of support cross bars 9 arranged at even intervals are installed between the upper support columns 3.

[0028] A vertical plate facing the other upper supporting column 3 is provided on the top of the upper supporting column 3 , and the buffer assembly is installed between the two vertical plates.

[0029] The outer sides of the upper support column 3 and the lower support column 2 are respectively provided with vertically parallel first vertical surfaces 7, and a reinforcing plate 7 is installed between the first vertical surfaces 7 to lock the upper support column 3 and the lower support column 2, which can prevent instability between the upper support column 3 and the lower support column 2.

[0030] The buffer assembly includes a load-bearing plate 11, a load-bearing block 12, a central axis 15, and a lateral displacement mechanism installed on both sides of the load-bearing block 12. The load-bearing plate 11 is arranged at the top of the load-bearing block 12, and outer cover plates 13 are arranged on both sides of the central axis 15 and are connected to the vertical plates on the upper support columns through the outer cover plates 13.

[0031] The load-bearing block 12 is arranged in an inverted U shape. A limiting column 19 is provided at the bottom opening of the load-bearing block 12 . A limiting hole 20 is provided on the limiting column 19 and is slidably fitted with the central shaft 15 .

[0032] The lateral displacement mechanism includes a connecting rod 17 hinged to the load-bearing block 12, the other end of the connecting rod 17 is hinged to a connecting plate 16 sleeved on the central axis 15, an inner end cover 14 is provided on the side of the connecting plate 16 away from the load-bearing block 12, and a first spring 18 is provided between the inner end cover 14 and the outer cover plate 13.

[0033] When the load-bearing plate 11 is subjected to the pressure impact of the upper wire, the load-bearing plate 11 will drive the load-bearing block to move downward. At the same time, the connecting rods 17 in the lateral displacement mechanisms on both sides will push the connecting plate 16 to both sides, compressing the first spring 18, thereby dispersing the impact force in the vertical direction above to the left and right sides, thereby buffering the pressure impact. At the same time, when no force is applied, the first spring 18 will drive the connecting plate 16 to automatically rebound and reset.

[0034] The lower support column 2 is also provided with a second vertical surface 8 perpendicular to the first vertical surface 7. The second vertical surface is provided with an adjustment hole movably connected to one end of the flip hinge, which can adjust the overall height of the upper support column and the lower support column.

[0035] The support base 1 includes an upper support plate 21, a lower support plate 22, and a second spring 25. The lower support plate 22 is fixed to the ground by a ground nail 23. The top end surface of the lower support plate 22 and the bottom end surface of the upper support plate 21 are respectively provided with cylindrical sleeves connected to the second spring 25. The upper support plate 21 and the lower support plate 22 are connected by a connecting bolt 26 passing through the cylindrical sleeve. The top end of the connecting bolt 26 passes through the upper support plate 21 and is threadedly connected to the locking nut 24.

[0036] When in use, first fix the support base 1 on the ground, and then install the lower support assembly on the support base 1 through the bolt assembly.

[0037] Determine the adjustment hole position of the flip hinge on the second vertical surface 8 of the lower support column 2 according to the height of the conveying line, connect the bottom end of the upper support assembly with the other end of the flip hinge, and at the same time, install the buffer assembly between the two upper support columns 3.

[0038] Then, the upper support assembly is hoisted to a vertical position using a crane, and the upper support assembly and the lower support assembly are locked and connected through the reinforcement plate to complete the assembly of the spanning frame.

[0039] Finally, the sealing net 4 is installed between the two spanning frames to protect the spanned object. At the same time, the top end of the upper supporting column 3 is connected to the tension wire 5 and the other end of the tension wire 5 is fixed to the ground and tightened.

[0040] After use, the upper support assembly can be flipped and folded to save space, and can be opened again when needed.

[0041] The utility model provides a foldable crossing frame device, which can quickly complete the installation of the crossing frame by arranging an upper support assembly and a lower support assembly that are hinged to each other. At the same time, the height connection relationship between the upper support assembly and the lower support assembly can be adjusted at any time. It has strong flexibility and can be suitable for the crossing construction of lines at different heights. It shortens the assembly time between the various components, effectively improves the installation efficiency of the crossing frame, and can also save the space occupied by the crossing frame.

Claims

1. Folding spanning frame device, characterized by: The invention comprises a symmetrically arranged spanning frame, wherein a sealing net is laid between the tops of the spanning frames, and the two ends of the tops of the spanning frames are connected to the tension wires (5) and tightened by the tension wires (5), and the other ends of the tension wires are fixed to the ground; the spanning frame comprises a support base (1), an upper support assembly, a lower support assembly, and a buffer assembly, and the bottom end of the lower support assembly is mounted on the symmetrically arranged support base (1); the bottom end of the upper support assembly is hinged to the top end of the lower support assembly by a flip hinge, and the upper support assembly and the lower support assembly are locked and connected by a reinforcing plate (6).

2. The foldable spanning frame device according to claim 1, characterized in that: The lower support assembly comprises two lower support columns (2), a plurality of support cross bars (9) arranged evenly at intervals are installed between the lower support columns (2), and the bottom ends of the lower support columns (2) are connected to the support base (1) through a bottom plate; a plurality of reinforcing ribs are provided between the circumference of the bottom ends of the lower support columns (2) and the bottom plate; and a first vertical surface (7) threadedly connected to the reinforcing plate (6) is provided on the outer side of the top end of the lower support column (2).

3. The foldable spanning frame device according to claim 2, characterized in that: The lower support column (2) is also provided with a second vertical surface (8) perpendicular to the first vertical surface (7), and an adjustment hole movably connected to one end of the flip hinge is provided on the second vertical surface.

4. The foldable spanning frame device according to claim 1, characterized in that: The upper support assembly comprises two upper support columns (3), and a plurality of support cross bars (9) arranged evenly at intervals are installed between the upper support columns (3); a vertical plate facing the other upper support column (3) is provided on the top of the upper support column (3), and the buffer assembly is installed between the two vertical plates; a first vertical surface (7) threadedly connected to the reinforcing plate (6) is provided on the outer side of the bottom end of the upper support column (3).

5. The foldable spanning frame device according to claim 4, characterized in that: The buffer assembly comprises a load-bearing plate (11), a load-bearing block (12), a central shaft (15), and a lateral shift mechanism installed on both sides of the load-bearing block (12); the load-bearing plate (11) is arranged at the top of the load-bearing block (12); outer cover plates (13) are arranged on both sides of the central shaft (15) and are connected to the vertical plates on the upper support column (3) through the outer cover plates (13); the load-bearing block (12) is arranged in an inverted U shape, and a limiting column (19) is arranged at the bottom opening of the load-bearing block (12), and a limiting hole (20) is opened on the limiting column (19) for slidingly fitting with the central shaft (15).

6. The foldable spanning frame device according to claim 5, characterized in that: The side shift mechanism includes a connecting rod (17) hinged to the load-bearing block (12), the other end of the connecting rod (17) being hinged to a connecting plate (16) sleeved on the central shaft (15), an inner end cover (14) being provided on a side of the connecting plate (16) away from the load-bearing block (12), and a first spring (18) being provided between the inner end cover (14) and the outer cover plate (13).

7. The foldable spanning frame device according to claim 1, characterized in that: The support base (1) comprises an upper support plate (21), a lower support plate (22), and a second spring (25). The lower support plate (22) is fixed to the ground by a ground nail (23). The top end surface of the lower support plate (22) and the bottom end surface of the upper support plate (21) are respectively provided with cylindrical sleeves connected to the second spring (25). The upper support plate (21) and the lower support plate (22) are connected by a connecting bolt (26) passing through the cylindrical sleeve. The top end of the connecting bolt (26) passes through the upper support plate (21) and is threadedly connected to the locking nut (24).

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