Cable-stayed crossing frame device based on planar four-bar mechanism

Abstract

The utility model discloses a cable-stayed spanning frame device based on a planar four-bar mechanism, which comprises two rows of spanning frame bodies, and an insulating sealing net is laid at the tops of the two rows of spanning frame bodies; each crossing frame body comprises supporting longitudinal rods, supporting transverse rods and a rectangular base, an insulating rod is hinged between the tops of every two adjacent supporting longitudinal rods, and an insulating sealing net is arranged between the insulating rods at the tops of the two rows of crossing frame bodies; stay wires are arranged at the tops of the supporting longitudinal rods at the edges of the same sides of the two rows of crossing frame bodies respectively, winches are arranged at the other ends of the stay wires, and guide wheels are arranged between the crossing frame bodies and the winches; and a stable supporting structure is arranged on the supporting longitudinal rod. According to the cable-stayed spanning frame device based on the plane four-bar mechanism, the four-bar mechanism is formed by arranging the transverse bar hinge and the longitudinal bar hinge, the whole spanning frame can be erected on the ground, the whole spanning frame is pulled up through the pull rope after the spanning frame is erected on the ground, and the aloft work amount of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spanning wire construction in electric power engineering, and more specifically to an oblique-stayed spanning frame device based on a planar four-bar mechanism. Background Art

[0002] During construction, high-voltage power lines often cross highways, high-speed railways, and power lines. Crossing construction is an extremely difficult construction method in power line construction. During construction, a spanning frame is usually used to seal the net. However, spanning construction currently relies heavily on manual labor and is usually carried out using a large number of high-altitude operations. Most of them use bamboo, log, or steel pipe spanning frames, which have a low degree of mechanization and low construction efficiency. The erection and dismantling process requires a large amount of manual labor for high-altitude operations. On the one hand, the large amount of high-altitude operations during the operation process poses a great safety risk. On the other hand, the safety and stability of the spanning frame are restricted by the material, which is not conducive to the overall safety management and control of the project.

[0003] To improve the mechanization and intelligence of construction and reduce the labor intensity of construction personnel, replacing workers with mechanization and reducing labor with intelligence, embodying a people-oriented and safety-first development philosophy, has become a general trend in power grid construction. Therefore, based on the current status of power line construction, a planar four-bar mechanism-based inclined-stayed span system is proposed. This system is of great significance in reducing height operations, labor input, and safety risks. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an inclined-stayed crossing frame device based on a planar four-bar mechanism, which can quickly assemble and disassemble the crossing frame body on the ground, providing convenience for crossing construction while improving the safety of the operation.

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

[0006] A diagonal-stayed spanning frame device based on a planar four-bar mechanism comprises two rows of spanning frame bodies vertically arranged on the ground, the two rows of spanning frame bodies are arranged in parallel, and the tops of the two rows of spanning frame bodies are paved with insulating sealing nets; the spanning frame body comprises a plurality of supporting longitudinal rods vertically arranged on the ground, a plurality of supporting cross rods hinged laterally between the supporting longitudinal rods, and a rectangular base hinged at the bottom of the supporting longitudinal rods for fixing the spanning frame body to the ground, an insulating rod is hinged between the tops of two adjacent supporting longitudinal rods, and the insulating sealing net is arranged between the insulating rods on the tops of the two rows of spanning frame bodies; the supporting longitudinal rods at the same side edges of the two rows of spanning frame bodies are hinged. The top of the rod is provided with a pulling wire for pulling up the main body of the crossing frame, and the other end of the pulling wire is provided with a winch for providing pulling power. A guide wheel is provided in the middle position between the crossing frame body and the winch to lift the pulling wire to a certain angle so that the pulling wire and the supporting longitudinal rod of the crossing frame body remain perpendicular; two pin holes are vertically provided at the connection of the movable hinge between the supporting longitudinal rod and the rectangular base, wherein the pin is inserted into the lower pin hole to realize the rotation of the supporting longitudinal rod, and the stop pin is inserted into the upper pin hole after the supporting longitudinal rod is stood up to realize the limitation of the longitudinal rod; a stable supporting structure for stabilizing the crossing frame body is provided on the supporting longitudinal rod.

[0007] To further optimize the technical solution, the stable support structure includes a diagonal pull rod arranged on the inner side of the lower part of the supporting longitudinal rod and a fixed pull rope arranged on the outer side of the top of the supporting longitudinal rod, and the other end of the fixed pull rope is provided with an anchor nail inserted into the ground.

[0008] To further optimize the technical solution, a spring sleeve is provided between the supporting longitudinal rod and the rectangular base for shock absorbing the cross-frame body. The bottom end of the spring sleeve is connected to the rectangular base through a set of movable hinges. The bottom end of the supporting longitudinal rod is inserted into the spring sleeve. A damping spring is provided inside the spring sleeve for buffering the impact force of the supporting longitudinal rod.

[0009] To further optimize the technical solution, the bottoms of the rectangular base and the spring sleeve are both provided with through holes, the bottom of the movable hinge is also provided with a through hole, and the movable hinge is connected to the rectangular base and the spring sleeve respectively by bolts and nuts passing through the through holes.

[0010] To further optimize the technical solution, two vertically opposite long slots are provided on the spring sleeve, and opposite through holes are provided at both ends of the bottom of the supporting longitudinal rod. The supporting longitudinal rod is connected to the spring sleeve by bolts and nuts passing through the long slots and through holes.

[0011] To further optimize the technical solution, the supporting longitudinal rod is composed of a plurality of supporting longitudinal rods, a connecting groove is provided at the end of each supporting longitudinal rod, a connecting piece is inserted into the connecting groove, and the supporting longitudinal rod and the connecting piece are connected by screws.

[0012] To further optimize the technical solution, the insulating rod is connected to the supporting longitudinal rod through movable hinges at both ends.

[0013] To further optimize the technical solution, a fixing ring is provided on the insulating sealing net, and a hook for hanging the fixing ring is provided on the inner side of the insulating rod.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is as follows.

[0015] The utility model provides a diagonal-stayed spanning frame device based on a planar four-bar mechanism. The four-bar mechanism is formed by arranging horizontal and vertical bar hinges, so that the spanning frame can be built on the ground as a whole. After the construction on the ground is completed, the entire spanning frame is pulled up by a pull rope. Workers do not need to climb up to perform high-altitude operations, which reduces the workload of workers at high altitudes, reduces work risks, and improves work efficiency. By arranging pull wires and diagonal-stayed rod mechanisms inside and outside the spanning frame, the stability of the spanning frame can be increased, effectively preventing the occurrence of power production safety accidents caused by loose grounding wire connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the rectangular base and spring sleeve portion of the present invention;

[0018] Figure 3 This is a structural diagram of the insulating crossbar connection portion of the present utility model;

[0019] Figure 4 This is a partial enlarged view of the connecting portion of the supporting longitudinal rod of the present invention;

[0020] Figure 5 This is a structural diagram of the spanning frame of the present invention when it is erected.

[0021] Among them: 1. Rectangular base, 2. Living hinge, 3. Pin, 4. Spring sleeve, 5. Damping spring, 6. Support longitudinal rod, 7. Support cross rod, 8. Connector, 9. Screw, 10. Insulating rod, 11. Fixed rope, 12. Anchor nail, 13. Diagonal rod, 14. Insulating sealing net, 15. Guide wheel, 16. Pull wire, 17. Winch. DETAILED DESCRIPTION

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

[0023] A diagonal-stayed spanning frame device based on a planar four-bar mechanism, combined with Figures 1 to 4As shown, it includes two rows of spanning frame bodies vertically arranged on the ground, the two rows of spanning frame bodies are arranged in parallel, and the tops of the two rows of spanning frame bodies are covered with insulating sealing nets 14.

[0024] The crossing frame includes a supporting longitudinal rod 6, a supporting transverse rod 7 and a rectangular base 1. The supporting longitudinal rods 6 are arranged in a number and are vertically arranged on the ground. The supporting transverse rods 7 are arranged in a number and are laterally hinged between the supporting longitudinal rods 6. The rectangular base 1 is hinged at the bottom of the supporting longitudinal rods 6 and is used to fix the crossing frame body to the ground. Mounting holes are respectively provided at the four corners of the rectangular base 1, which are used to fix the rectangular base to the ground by bolts. An insulating rod 10 is hinged between the tops of two adjacent supporting longitudinal rods 6. A fixing ring is provided on the insulating sealing net 14. A hook is provided on the inner side of the insulating rod for hanging the fixing ring and laying the insulating sealing net 14 between the insulating rods at the top of the two rows of crossing frame bodies.

[0025] A spring sleeve 4 is provided between the supporting longitudinal rod 6 and the rectangular base 1. The bottom end of the spring sleeve 4 is connected to the rectangular base 1 through a set of movable hinges 2. The bottom end of the supporting longitudinal rod 6 is inserted into the spring sleeve. A damping spring 5 is provided inside the spring sleeve 4 to buffer the impact force of the supporting longitudinal rod.

[0026] Through holes are provided at the bottom of the rectangular base 1 and the spring sleeve 4, and a through hole is provided at the bottom of the movable hinge 2. The movable hinge is connected to the rectangular base and the spring sleeve by bolts and nuts passing through the corresponding through holes. Two pin holes are vertically provided at the connection of the movable hinge 2 between the spring sleeve 4 and the rectangular base 1. The pin 3 is inserted into the lower pin hole to realize the rotation of the spring sleeve, and the stop pin is inserted into the upper pin hole after the supporting longitudinal rod is erected to realize the positioning of the spring sleeve.

[0027] Two vertical long slots are provided on the spring sleeve 4, and the two vertical long slots are arranged opposite to each other. Relative through holes are provided at both ends of the bottom of the supporting longitudinal rod 6. The through holes correspond to the long slots provided on the spring sleeve. The supporting longitudinal rod is connected to the spring sleeve by bolts passing through the through holes and the long slots, and fixed by nuts. At this time, the supporting longitudinal rod can slide up and down along the long slots on the spring sleeve. When the supporting longitudinal rod is subjected to impact force, it is buffered by the damping spring.

[0028] The supporting longitudinal rod 6 and the supporting cross rod 7 are connected in a hinged manner. Through holes are provided at both ends of the supporting cross rod 7, and holes are also provided at corresponding positions of the supporting longitudinal rod 6. Pins are passed through the holes on the supporting cross rod and the supporting longitudinal rod to form a hinge, thereby forming a four-bar linkage for folding.

[0029] The supporting longitudinal rods 6 are in the form of a combination of multiple rods. A connecting groove is provided at the end of each supporting longitudinal rod, and a connecting piece 8 is inserted into the connecting groove. The supporting longitudinal rods 6 and the connecting piece 8 are connected by screws 9. The number of supporting longitudinal rod connections can be adjusted according to the height requirements of the crossing frame, thereby increasing the flexibility of the crossing frame.

[0030] The insulating rod 10 is connected to the supporting longitudinal rod 6 through the movable hinges 2 at both ends. Threaded holes are provided on the left and right end surfaces of the insulating rod 10. The movable hinges are set in the threaded holes at both ends of the insulating rod through bolts. The two fixed movable hinges on the left and right are then hinged to the other two movable hinges through pins. Finally, the movable hinges are fixed to the supporting longitudinal rod 6 through T-nuts to realize the hinged connection between the insulating rod and the supporting longitudinal rod.

[0031] A pull wire 16 is provided on the top of the supporting longitudinal rod 6 at the same side edge of the two rows of crossing frames, and a winch 17 is provided at the other end of the pull wire 16 to provide pulling power. A guide wheel 15 is provided in the middle position between the crossing frame body and the winch 17 to lift the pull wire and move the angle so that the pull wire and the supporting longitudinal rod of the crossing frame body remain vertical, which is convenient for exerting force to pull the crossing frame body from the ground.

[0032] A stabilizing support mechanism is provided on the supporting longitudinal rod 6 to stabilize the spanning frame after it is pulled up. The stabilizing mechanism includes a diagonal rod 13 and a fixed pull rope 11. The diagonal rod 13 is arranged on the inner side of the lower part of the supporting longitudinal rod and is used to provide auxiliary support for the supporting longitudinal rod. The fixed pull rope 11 is provided on the top outside of the supporting longitudinal rod 6. The other end of the fixed pull rope 11 is provided with an anchor 12. The anchor 12 is used to be inserted into the ground. The pull rope and the anchor cooperate to fix the spanning frame. Before the spanning frame is erected, the pull rope and one end of the diagonal rod are first fixed to the point where the frame needs to be fixed. After the spanning frame is erected, the stop pin is inserted to stop the spanning frame from rotating. Then, the other end of the pull rope and the diagonal rod are fixed to the ground with the anchor. When the spanning frame is dismantled after use, the ground anchor is first removed, the stop pin is taken out, and then the frame is laid down, and the pull rope and the diagonal rod are removed.

[0033] The structural diagram of the utility model when pulled up is as follows Figure 5 As shown, when in use, first build the frame of the crossing frame on the ground, then connect the pulling wires to the front supporting longitudinal rods and winches of the crossing frame respectively, and adjust the force angle through the guide wheels. Finally, by rotating the winch, relying on the structural characteristics of the screw rod mechanism of the crossing frame, the frame of the crossing frame is pulled up from the fallen state. After pulling it up, insert the stop pin into the pin hole above the movable hinge at the bottom, and use the pulling rope, anchor nails and diagonal rods to fix the front, rear, left and right supporting longitudinal rods of the crossing frame to ensure the firmness of the crossing frame.

Claims

1. A diagonal-stayed spanning frame device based on a planar four-bar mechanism, characterized in that: The invention comprises two rows of spanning frame bodies vertically arranged on the ground, the two rows of spanning frame bodies are arranged in parallel, and the tops of the two rows of spanning frame bodies are paved with insulating sealing nets (14); the spanning frame bodies comprise a plurality of supporting longitudinal rods (6) vertically arranged on the ground, a plurality of supporting transverse rods (7) hinged laterally between the supporting longitudinal rods (6), and a rectangular base (1) hinged at the bottom of the supporting longitudinal rods (6) for fixing the spanning frame bodies on the ground, an insulating rod (10) is hinged between the tops of two adjacent supporting longitudinal rods (6), and the insulating sealing net is arranged between the insulating rods (10) at the tops of the two rows of spanning frame bodies; the tops of the supporting longitudinal rods (6) at the same side edges of the two rows of spanning frame bodies are respectively provided with insulating nets for A pull wire (16) is used to pull up the main body of the spanning frame, and a winch (17) is provided at the other end of the pull wire (16) for providing pulling power. A guide wheel (15) is provided in the middle position between the spanning frame body and the winch (17) for lifting the pull wire at a certain angle so that the pull wire (16) and the supporting longitudinal rod (6) of the spanning frame body remain vertical; two pin holes are vertically provided at the connection between the supporting longitudinal rod (6) and the movable hinge (2), wherein the pin (3) is inserted into the lower pin hole to realize the rotation of the supporting longitudinal rod (6), and the stop pin is inserted into the upper pin hole after the supporting longitudinal rod stands up to realize the limitation of the longitudinal rod; a stable support structure for stabilizing the spanning frame body is provided on the supporting longitudinal rod (6).

2. The inclined-stayed spanning frame device based on a planar four-bar mechanism according to claim 1, characterized in that: The stable support structure comprises a diagonal pull rod (13) arranged obliquely downward on the inner side of the lower part of the supporting longitudinal rod (6) and a fixed pull rope (11) arranged on the outer side of the top of the supporting longitudinal rod (6), and the other end of the fixed pull rope (11) is provided with an anchor nail (12) inserted into the ground.

3. The inclined-stayed spanning frame device based on a planar four-bar mechanism according to claim 1, characterized in that: A spring sleeve (4) for damping the cross frame body is provided between the supporting longitudinal rod (6) and the rectangular base (1); the bottom end of the spring sleeve (4) is connected to the rectangular base (1) via a set of movable hinges (2); the bottom end of the supporting longitudinal rod (6) is inserted into the spring sleeve (4); and a damping spring (5) for buffering the impact force of the supporting longitudinal rod is provided inside the spring sleeve (4).

4. The inclined-stayed spanning frame device based on a planar four-bar mechanism according to claim 3, characterized in that: The bottoms of the rectangular base (1) and the spring sleeve (4) are both provided with through holes, and the bottom of the movable hinge (2) is also provided with a through hole. The movable hinge (2) is connected to the rectangular base (1) and the spring sleeve (4) respectively by bolts and nuts passing through the through holes.

5. The inclined-stayed spanning frame device based on a planar four-bar mechanism according to claim 3, characterized in that: The spring sleeve (4) is provided with two vertically opposite long slots, and the bottom ends of the supporting longitudinal rod (6) are provided with opposite through holes. The supporting longitudinal rod (6) is connected to the spring sleeve (4) via bolts and nuts passing through the long slots and the through holes.

6. The inclined-stayed spanning frame device based on a planar four-bar mechanism according to claim 1, characterized in that: The supporting longitudinal rod (6) is composed of a plurality of supporting longitudinal rods. A connecting groove is provided at the end of each supporting longitudinal rod. A connecting piece (8) is inserted into the connecting groove. The supporting longitudinal rod (6) and the connecting piece are connected by screws (9).

7. The inclined-stayed spanning frame device based on a planar four-bar mechanism according to claim 1, characterized in that: The insulating rod (10) is connected to the supporting longitudinal rod (6) via movable hinges (2) at both ends.

8. The inclined-stayed spanning frame device based on a planar four-bar mechanism according to claim 1, characterized in that: A fixing ring is provided on the insulating sealing net (14), and a hook for hanging the fixing ring is provided on the inner side of the insulating rod (10).

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