Trapezoidal combined type crossing frame

Abstract

The utility model discloses a trapezoid combined type crossing frame which comprises a plurality of trapezoid crossing frame units, the bottoms of the trapezoid crossing frame units are installed on a supporting base through 90-degree rotating hinges, and the supporting base is inserted into the ground through an expansion ground anchor to be fixed. The adjacent trapezoidal crossing frame units are connected through the cross beam modules; wherein the trapezoidal spanning frame unit at the outer end of one side is connected with a traction module for converting the spanning frame from a folded state to a vertical state; according to the utility model, the traction module is arranged to be matched with the trapezoidal spanning units hinged to the supporting base, so that the overhead working amount is reduced, the spanning frame can be pre-assembled on the ground, the assembling efficiency is improved, the construction period is effectively shortened, and the trapezoidal spanning frame units are in a folded state; a steel wire rope in the traction module pulls the crossing frame in the folded state to be in the vertical state, and the wires can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of spanning frames, in particular to a ladder-shaped combined spanning frame. Background Art

[0002] A spanning frame is a structure used to cross various obstacles. Its primary function is to safely cross facilities such as power lines, railways, or roads to a designated area. During transmission line construction, it is often necessary to cross various obstacles such as roads, railways, broadcast lines, and power lines. To protect the conductors from damage while ensuring the safe operation of the objects being crossed, spanning frames are erected at these crossings before the lines are laid.

[0003] There are many types of spanning frames currently used at home and abroad, and they are usually built with materials such as bamboo, fir, and steel pipes. However, the existing spanning frames require time to build and dismantle during the construction process, and the construction period is long. There are also problems such as a large workload of manual climbing and a high risk of falling or electric shock. Moreover, the spanning frames occupy a large area when they are built, which may have a certain impact on the spatial layout and traffic flow of the construction site. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a trapezoidal combined crossing frame, which can greatly reduce the amount of high-altitude work and provide a new security solution for the crossing construction of power grids.

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

[0006] A ladder-shaped combined spanning frame comprises a plurality of ladder-shaped spanning frame units, wherein the bottom of each ladder-shaped spanning frame unit is mounted on a support base via a 90-degree rotating hinge, and the support base is fixed underground via an expansion anchor; adjacent ladder-shaped spanning frame units are connected via a crossbeam module; the ladder-shaped spanning frame unit at the outer end of one side is connected to a traction module that converts the spanning frame from a folded state to a vertical state.

[0007] The above-mentioned trapezoidal combined spanning frame, the trapezoidal spanning frame unit includes two symmetrically arranged vertical beam modules and a truss stabilizing module connecting the two vertical beam modules, and the two vertical beam modules and the truss stabilizing module are arranged in an isosceles trapezoid.

[0008] The above-mentioned trapezoidal combined spanning frame, the vertical beam module includes eight vertical beams connected in sequence and numbered in order from low to high, the bottom vertical beam is a first-level vertical beam, the top vertical beam is an eighth-level vertical beam, the top of the first-level vertical beam is provided with an external thread, and the two ends of the second-level vertical beam, the third-level vertical beam, the fourth-level vertical beam, the fifth-level vertical beam, the sixth-level vertical beam, the seventh-level vertical beam and the eighth-level vertical beam are respectively provided with external threads; a high-damping spring mechanism is installed between the first-level vertical beam and the second-level vertical beam, between the third-level vertical beam and the fourth-level vertical beam, and between the fifth-level vertical beam and the sixth-level vertical beam; the second-level vertical beam and the third-level vertical beam, the fourth-level vertical beam and the fifth-level vertical beam, and between the sixth-level vertical beam and the seventh-level vertical beam are threadedly connected by a straight connector; a shear damping mechanism is installed between the seventh-level vertical beam and the eighth-level vertical beam.

[0009] The above-mentioned trapezoidal combined crossing frame, the high-damping spring mechanism includes an upper cover, a lower cover, a spring, and a connecting shaft. The upper cover and the lower cover are respectively arranged in a cylindrical shape and the interior is divided into a threaded cavity and a smooth cavity by a partition plate, and the upper cover and the lower cover are arranged opposite to each other; the threaded cavity is threadedly fitted with the external threaded end of the vertical beam, and the smooth cavities are connected by a spring; the smooth cavities are also connected with a connecting shaft sleeved inside the spring, one end of the connecting shaft is threadedly connected to the partition plate inside the upper cover, and the other end is slidably connected to the partition plate inside the lower cover.

[0010] The above-mentioned trapezoidal combined spanning frame, the shear damping mechanism includes a shear outer cylinder and a shear inner cylinder, the cylindrical side of the shear inner cylinder is opened with a plurality of through holes, and the cylindrical side of the shear outer cylinder corresponding to the shear inner cylinder is also opened with a plurality of through holes; the shear outer cylinder is composed of two symmetrically arranged semi-cylindrical cylinders, the shear outer cylinder is sleeved on the outside of the shear inner cylinder and connected by steel nails passing through the corresponding through holes; both ends of the shear outer cylinder are provided with external threads, and the shear outer cylinder and the vertical beam are connected by a nut sleeve with an internal thread.

[0011] In the above-mentioned trapezoidal combined spanning frame, the truss stabilization module includes a plurality of trusses installed between the vertical beams of the same level of the vertical beam modules on both sides, and the length of the trusses decreases as the level of the vertical beams increases.

[0012] In the above-mentioned trapezoidal combined spanning frame, the crossbeam module includes a transverse telescopic rod, and both ends of the transverse telescopic rod are respectively hinged to the vertical beams on the front and rear sides of the transverse telescopic rod.

[0013] The above-mentioned trapezoidal combined spanning frame, the rotating hinge includes a hinge fixing part and a hinge movable part, the hinge fixing part is installed on the support base, the hinge movable part is hinged to the hinge fixing part and the hinge movable part is connected to the bottom end of the first-level vertical beam.

[0014] The above-mentioned ladder-shaped combined spanning frame, the traction module includes an electric winch, the movable end of the wire rope on the electric winch is connected to the top of the outermost ladder-shaped spanning frame unit, and the head of the wire rope is also provided with a polyurethane shock-absorbing block for shock absorption.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is as follows.

[0016] The utility model provides a ladder-shaped combined spanning frame, which improves assembly efficiency by arranging ladder-shaped spanning frame units composed of vertical beam modules and truss stabilization modules, and can correct errors in the initial installation process by arranging crossbeam modules to connect the ladder-shaped spanning frame units. It also reduces the amount of high-altitude work by arranging a traction module to cooperate with the ladder-shaped spanning unit hinged on the support base, and can pre-assemble the spanning frame on the ground, effectively shortening the construction period. The ladder-shaped spanning frame units are in a folded state, and the folded spanning frame is pulled to a vertical state by the steel wire rope in the traction module, which can effectively protect the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the specific structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the specific structure of the utility model when it is installed;

[0019] Figure 3 This is a schematic diagram of the specific structure of the ladder-shaped spanning frame unit of the present invention;

[0020] Figure 4 This is a schematic diagram of the specific structure of the support base when it is installed;

[0021] Figure 5 This is a schematic diagram of the specific structure of the high damping spring mechanism of the utility model;

[0022] Figure 6 This is a schematic diagram of the specific structure of the shear damping mechanism of the utility model.

[0023] Among them: 1. Trapezoidal spanning frame unit, 11. Vertical beam module, 111. Vertical beam, 112. Straight connector, 113. High-damping spring mechanism, 1131. Upper cover, 1132. Lower cover, 1133. Spring, 1134. Connecting shaft, 1135. Threaded cavity, 1136. Smooth cavity, 114. Shear damping mechanism, 1141. Shear outer tube, 1142. Shear inner tube, 1143. Steel nail, 12. Truss stabilization module, 121. Truss, 2. Crossbeam module, 3. Steel wire rope, 4. Electric winch, 5. Polyurethane shock-absorbing block, 6. Support base, 7. Expansion anchor, 8. Hinge fixing part, 9. Hinge movable part. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] A ladder-shaped combined spanning frame, such as Figures 1 to 6 As shown, it includes several ladder-shaped spanning frame units 1. The bottom of the ladder-shaped spanning frame unit 1 is installed on the support base 6 through a 90° rotating hinge. The support base 6 is fixed into the ground through an expansion anchor 7. Adjacent ladder-shaped spanning frame units are connected by a crossbeam module 2. The ladder-shaped spanning frame unit 1 at the outer end of one side is connected to a traction module that converts the spanning frame from a folded state to a vertical state.

[0026] The trapezoidal spanning frame unit 1 includes two symmetrically arranged vertical beam modules 11 and a truss stabilizing module 12 connecting the two vertical beam modules 11 . The two vertical beam modules 11 and the truss stabilizing module 12 are arranged in an isosceles trapezoidal shape.

[0027] The vertical beam module 11 includes eight vertical beams 111 connected in sequence and numbered in ascending order. The bottom vertical beam 111 is a first-level vertical beam, and the top vertical beam is an eighth-level vertical beam. The top of the first-level vertical beam is provided with an external thread, and the two ends of the second-level vertical beam, the third-level vertical beam, the fourth-level vertical beam, the fifth-level vertical beam, the sixth-level vertical beam, the seventh-level vertical beam, and the eighth-level vertical beam are respectively provided with external threads.

[0028] The bottom of the primary vertical beam is connected with a rotary hinge, e.g. Figure 4 As shown, the rotary hinge includes a hinge fixing portion 8 and a hinge movable portion 9. The hinge fixing portion 8 is mounted on the support base 6. The hinge movable portion 9 is hinged to the hinge fixing portion and is connected to the bottom end of the first-level vertical beam.

[0029] A high-damping spring mechanism 113 is installed between the first-level vertical beam and the second-level vertical beam, between the third-level vertical beam and the fourth-level vertical beam, and between the fifth-level vertical beam and the sixth-level vertical beam. The second-level vertical beam and the third-level vertical beam, between the fourth-level vertical beam and the fifth-level vertical beam, and between the sixth-level vertical beam and the seventh-level vertical beam are threadedly connected through a linear connector 112. A shear damping mechanism 114 is installed between the seventh-level vertical beam and the eighth-level vertical beam.

[0030] The high damping spring mechanism 113 includes an upper cover 1131, a lower cover 1132, a spring 1133, and a connecting shaft 1134. Figure 5 As shown, the upper cover 1131 and the lower cover 1132 are respectively cylindrical and the interior is divided into a threaded cavity 1135 and a smooth cavity 1136 by a partition plate, and the upper cover 1131 and the lower cover 1132 are arranged opposite to each other, the threaded cavity 1135 is threadedly fitted with the external threaded end of the vertical beam 111, and the smooth cavities 1136 are connected by a spring 1133.

[0031] A connecting shaft 1134 sleeved inside the spring is also connected between the smooth cavity 1136. One end of the connecting shaft 1134 is threadedly connected to the partition plate inside the upper cover 1131, and the other end is slidingly connected to the partition plate inside the lower cover 1132. When the upper cover 1131 is compressed by force, the spring 1133 is compressed downward, and at the same time, the upper cover drives the connecting shaft 1134 to move toward the lower cover, thereby ensuring the stability of the upper cover's moving direction.

[0032] The shear damping mechanism 114 includes a shear outer cylinder 1141 and a shear inner cylinder 1142. The cylindrical side of the shear inner cylinder 1142 is provided with a plurality of through holes. The cylindrical side of the shear outer cylinder 1141 corresponding to the shear inner cylinder 1142 is also provided with a plurality of through holes. The shear outer cylinder 1141 is sleeved on the outside of the shear inner cylinder 1142 and is connected by steel nails 1143 passing through the corresponding through holes.

[0033] The shear outer cylinder 1141 is composed of two symmetrically arranged semi-cylindrical cylinders. Both ends of the shear outer cylinder 1141 are provided with external threads. The shear outer cylinder 1141 is connected to the vertical beam 111 through a nut sleeve with internal threads.

[0034] When the crossing frame is impacted by the conductor, the impact load causes the inner and outer layers of the shear damping mechanism to move relative to each other, causing the steel nails to deform or shear due to longitudinal shear stress, thereby absorbing the impact load.

[0035] The truss stabilization module 12 includes a plurality of trusses installed between the vertical beams of the same level of the vertical beam modules on both sides. The length of the trusses decreases as the level of the vertical beams increases, thereby ensuring the stability of the vertical beam modules.

[0036] The beam module 2 includes a transverse telescopic rod, both ends of which are hinged to the vertical beams on the front and rear sides of the transverse telescopic rod respectively. The spacing between the ladder-shaped spanning frame units is adjusted by controlling the expansion or contraction or extension of the transverse telescopic rod.

[0037] The traction module includes an electric winch 4. The movable end of the steel wire rope 3 on the electric winch 4 is connected to a hook arranged on the top vertical beam 111. The head of the steel wire rope 3 is also provided with a polyurethane shock-absorbing block 5 for shock absorption.

[0038] When in use, two rows of crossing frames are symmetrically arranged, and insulating sealing nets are set on the upper ends of the two symmetrically arranged groups of crossing frames to receive fallen wires.

[0039] Specifically, the installation and use of the utility model are as follows:

[0040] First, the support base 6 is evenly installed on the ground through the expansion anchors 7 .

[0041] Then, the trapezoidal spanning unit 1 is assembled, and a high-damping spring mechanism 113 is installed between the first-level vertical beam and the second-level vertical beam, between the third-level vertical beam and the fourth-level vertical beam, and between the fifth-level vertical beam and the sixth-level vertical beam. The second-level vertical beam and the third-level vertical beam, the fourth-level vertical beam and the fifth-level vertical beam, and the sixth-level vertical beam and the seventh-level vertical beam are connected respectively through the straight connecting head 112, and the shear damping mechanism 114 is installed between the seventh-level vertical beam and the eighth-level vertical beam to complete the installation of the vertical beam module; then the vertical beam module is connected to the hinge movable part on the support base 6, and a truss is installed between the two vertical beam modules.

[0042] Next, the assembled trapezoidal spanning units 1 are connected through the crossbeam modules 2. During the installation process, if there is an error in the spacing between the support bases, the spacing between the trapezoidal spanning units can be adjusted through the transverse telescopic rods.

[0043] During the entire assembly process, the assembly of the crossing frame can be completed on the ground without the need for climbing operations. After the assembly is completed, the ladder-shaped crossing frame units are in a folded state. After the movable end of the wire rope 3 is connected to the top of the outermost ladder-shaped crossing frame unit 1, the wire rope is driven to retract by the electric winch 4, thereby completing the transformation of the crossing frame from the folded state to the vertical state.

[0044] The utility model provides a ladder-shaped combined spanning frame, which improves assembly efficiency by arranging ladder-shaped spanning frame units composed of vertical beam modules and truss stabilization modules, and can correct errors in the initial installation process by arranging crossbeam modules to connect the ladder-shaped spanning frame units. It also reduces the amount of high-altitude work by arranging a traction module to cooperate with the ladder-shaped spanning unit hinged on the support base, and can pre-assemble the spanning frame on the ground, effectively shortening the construction period. The ladder-shaped spanning frame units are in a folded state, and the folded spanning frame is pulled to a vertical state by the steel wire rope in the traction module, which can effectively protect the wires.

Claims

1. A ladder-shaped combined spanning frame, characterized in that: The invention comprises a plurality of ladder-shaped spanning frame units (1), wherein the bottom of the ladder-shaped spanning frame unit (1) is mounted on a support base (6) via a 90-degree rotating hinge, and the support base (6) is fixed by being driven into the ground via an expansion anchor (7); adjacent ladder-shaped spanning frame units (1) are connected via a crossbeam module (2); and the ladder-shaped spanning frame unit (1) at the outer end on one side is connected to a traction module for converting the spanning frame from a folded state to a vertical state.

2. The ladder-shaped combined spanning frame according to claim 1, characterized in that: The trapezoidal spanning frame unit (1) comprises two symmetrically arranged vertical beam modules (11) and a truss stabilizing module (12) connecting the two vertical beam modules (11); the two vertical beam modules (11) and the truss stabilizing module (12) are arranged in an isosceles trapezoidal shape.

3. The ladder-shaped combined spanning frame according to claim 2, characterized in that: The vertical beam module (11) includes eight vertical beams (111) connected in sequence and numbered in ascending order, the bottom vertical beam (111) is a first-level vertical beam, the top vertical beam (111) is an eighth-level vertical beam, the top of the first-level vertical beam is provided with an external thread, and the two ends of the second-level vertical beam, the third-level vertical beam, the fourth-level vertical beam, the fifth-level vertical beam, the sixth-level vertical beam, the seventh-level vertical beam, and the eighth-level vertical beam are respectively provided with external threads; a high-damping spring mechanism (113) is installed between the first-level vertical beam and the second-level vertical beam, between the third-level vertical beam and the fourth-level vertical beam, and between the fifth-level vertical beam and the sixth-level vertical beam; the second-level vertical beam and the third-level vertical beam, the fourth-level vertical beam and the fifth-level vertical beam, and between the sixth-level vertical beam and the seventh-level vertical beam are threadedly connected via a linear connector (112); a shear damping mechanism (114) is installed between the seventh-level vertical beam and the eighth-level vertical beam.

4. The ladder-shaped combined spanning frame according to claim 3, characterized in that: The high damping spring mechanism (113) comprises an upper cover (1131), a lower cover (1132), a spring (1133), and a connecting shaft (1134). The upper cover (1131) and the lower cover (1132) are respectively cylindrically arranged and their interiors are divided into a threaded cavity (1135) and a smooth cavity (1136) by a partition plate, and the upper cover (1131) and the lower cover (1132) are arranged opposite to each other; the threaded cavity (1135) is threadedly fitted with the external threaded end of the vertical beam (111), and the smooth cavities (1136) are connected by the spring (1133); a connecting shaft (1134) sleeved inside the spring is further connected between the smooth cavities (1136), one end of the connecting shaft (1134) is threadedly connected to the partition plate inside the upper cover (1131), and the other end is slidably connected to the partition plate inside the lower cover (1132).

5. The ladder-shaped combined spanning frame according to claim 3, characterized in that: The shear damping mechanism (114) comprises a shear outer cylinder (1141) and a shear inner cylinder (1142), wherein the cylindrical side surface of the shear inner cylinder (1142) is provided with a plurality of through holes, and the cylindrical side surface of the shear outer cylinder (1141) corresponding to the shear inner cylinder (1142) is also provided with a plurality of through holes; the shear outer cylinder (1141) is composed of two symmetrically arranged semi-cylindrical cylinders, the shear outer cylinder (1141) is sleeved on the outside of the shear inner cylinder (1142) and connected by steel nails (1143) passing through the corresponding through holes; both ends of the shear outer cylinder (1141) are provided with external threads, and the shear outer cylinder (1141) and the vertical beam (111) are connected by a nut sleeve with internal threads.

6. The ladder-shaped combined spanning frame according to claim 3, characterized in that: The truss stabilization module (12) comprises a plurality of trusses installed between the vertical beams of the same level of the vertical beam modules on both sides, and the length of the trusses decreases as the level of the vertical beams increases.

7. The ladder-shaped combined spanning frame according to claim 3, characterized in that: The crossbeam module (2) comprises a transverse telescopic rod, and both ends of the transverse telescopic rod are respectively hinged to the vertical beams on the front and rear sides of the transverse telescopic rod.

8. The ladder-shaped combined spanning frame according to claim 3, characterized in that: The rotary hinge comprises a hinge fixing portion (8) and a hinge movable portion (9), wherein the hinge fixing portion (8) is mounted on the support base (6), the hinge movable portion (9) is hinged to the hinge fixing portion, and the hinge movable portion (9) is connected to the bottom end of the first-level vertical beam.

9. The ladder-shaped combined spanning frame according to claim 1, characterized in that: The traction module comprises an electric winch (4), wherein the movable end of the steel wire rope (3) on the electric winch (4) is connected to the top end of the outermost ladder-shaped spanning frame unit (1).

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