Support joint, middle support and joint mounting method

Abstract

The invention discloses a support joint, a middle support and a joint installation method, the support joint comprises a cushion block and a locking piece, one side of the cushion block is attached to a cross beam on the support, and the side, opposite to the cross beam, of the cushion block is of a cambered surface structure; the locking piece penetrates through the cross beam and is matched with the cambered surface structure of the cushion block to form a connecting hole, and the connecting hole allows the main cable to penetrate through and locks the main cable to the cushion block; the cambered surface structure is a partial cylindrical surface structure, and the axis of the cambered surface structure is perpendicular to the length direction of the main cable. The cushion block is used for supporting the main cable and is matched with the locking piece to lock the main cable, the cushion block reduces the corner folding risk of the main cable through the cambered surface structure, meanwhile, the main cable can be closer to the center of the cross beam, the stress of the cross beam is optimized, and the connection stability of the main cable is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic equipment, and in particular to a bracket node, a middle bracket and a node installation method. Background Art

[0002] With the development of the photovoltaic industry, flexible photovoltaic systems have shown great advantages in the construction of power stations under complex terrain. Flexible photovoltaics use steel strands as the main load-bearing cables (main cables), and the main cables are fixed by end brackets composed of steel beams, side anchors, etc. Due to the large span of the main cable, multiple intermediate bracket structures need to be set up in the area where the main cable spans to allow the main cable to pass through and support the main cable. However, during the installation of the main cable, the main cable needs to be tensioned to a certain tension to achieve stable support for the photovoltaic panel. The mountainous conditions are relatively complex, and multiple middle brackets will have ups and downs, causing the main cable to be bent. The main cable will be bent at the node position of the middle bracket, which will cause a certain risk of clamping. This will not only make it difficult to tension the main cable, but also cause the risk of the main cable breaking due to the force deviation at the bent position, causing great economic losses.

[0003] Therefore, how to improve the stability of the main cable assembly and tensioning process is a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a support node to improve the stability of the main cable assembly and tensioning process.

[0005] Another object of the present invention is to provide a middle bracket including the above bracket node.

[0006] Another object of the present invention is to provide a method for installing the above-mentioned bracket node.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A support node, comprising a cushion block and a locking piece, wherein one side of the cushion block is arranged in contact with a cross beam on the support, and the side of the cushion block facing away from the cross beam is a curved surface structure; the locking piece is arranged through the cross beam and cooperates with the curved surface structure of the cushion block to form a connecting hole, wherein the connecting hole is used for a main cable to pass through and the main cable is locked to the cushion block;

[0009] A limiting portion is provided in the connecting hole, the limiting portion passes through the connecting hole and contacts the arc surface structure, the main rope is pressed to the limiting portion by the locking member, the limiting portion is a steel wire rope and at least two strands of the steel wire rope pass through the connecting hole, the main rope contacts the two steel wire ropes at the same time and is fixedly connected to at least a partial area of ​​the steel wire rope.

[0010] Preferably, in the above-mentioned support node, the arc surface structure is a partial cylindrical surface structure, and the axis of the arc surface structure is perpendicular to the length direction of the main cable.

[0011] Preferably, in the above-mentioned support node, the projection of the steel wire rope in the length direction of the main cable exceeds both sides of the crossbeam, and the areas of the steel wire rope exceeding both sides of the crossbeam are respectively fixedly connected to the main cable through rope clamps.

[0012] Preferably, in the above-mentioned support node, two steel wire ropes are arranged in parallel and both pass through the connecting hole.

[0013] Preferably, in the above-mentioned support node, the steel wire rope is provided in a single piece, and the single steel wire rope is provided along the length direction of the main cable, wraps around the cross beam in the connecting hole once, and then continues to extend.

[0014] Preferably, in the above-mentioned support node, the steel wire rope contacts the cushion block and presses the main rope to the locking member, and the axis line connecting the two strands of the steel wire rope that the main rope contacts with the steel wire rope forms an isosceles triangle. Preferably, in the above-mentioned support node, the steel wire rope contacts the locking member and presses the main rope to the cushion block, and the axis line connecting the two strands of the steel wire rope that the main rope contacts with the steel wire rope forms an isosceles triangle.

[0015] Preferably, in the above-mentioned support node, the side of the cushion block that is in contact with the cross beam has a dimension larger than that of the cross beam in the length direction of the main cable, and is in contact with the edge of the cross beam through a bending structure.

[0016] A middle support comprises a support column and a crossbeam, wherein the crossbeam is fixedly arranged on the support column, and a plurality of support nodes as described in any of the above embodiments are arranged on the crossbeam.

[0017] A method for installing a support node is used to install the support node described in any one of the above embodiments on a middle support, and the installation method at least comprises the following steps:

[0018] Pre-fix the main cable: After the main cable is tensioned, the U-bolt surrounds the main cable and passes through the crossbeam. The main cable is located in the connection hole, and the U-bolt is in a non-locking state to allow the main cable to have freedom in the connection hole;

[0019] Pre-installed wire rope: fix one end of the wire rope to the main rope through a rope clamp to form a fixed end, and pass the other free end of the wire rope through the connecting hole, wrap it around the crossbeam, and pass it back to the connecting hole again to form a two-strand wire rope structure in the connecting hole;

[0020] Lock the wire rope: install the first cable catch at the free end of the wire rope, install the second cable catch on the main rope passing through the connection hole, and pull the two cable catches towards each other until the wire rope is tightly combined with the crossbeam and the pad in a full circle, and the free end of the wire rope is tight;

[0021] Fix the main rope: Use the rope clamp to lock the free end of the wire rope on the main rope, tighten the U-bolt, and remove the rope clamp to complete the installation of the bracket node.

[0022] Preferably, in the installation method of the above-mentioned support node, in the step of locking the wire rope, the opposite tensioning of the first cable clamp and the second cable clamp is achieved by a hand winch, and the distance between the first cable clamp and the second cable clamp in the length direction of the main rope is greater than the hand winch.

[0023] It can be seen from the above technical scheme that the support node provided by the present invention is provided with a pad on the beam for receiving the main cable, and the pad is connected to the beam through a locking piece to form a connecting hole. When the main cable passes through the connecting hole and is fixed by the locking piece, the installation convenience of the main cable can be improved by the expansion and contraction of the connecting hole, and the setting of the locking piece can make the main cable dock with the arc surface structure on the pad. Compared with the structure in which the main cable directly contacts the beam in the prior art, it can have a smooth transition structure, and avoid the problem of the main cable being bent or tangled when there is a height change between adjacent support nodes and cannot continue to be tensioned. At the same time, compared with the structure in which the roller node is set in the prior art, it can reduce the production cost, and make the main cable and the beam have a shorter distance. When the main cable is subjected to a force, the force arm between it and the beam is shorter, so that the beam and the main cable have stronger structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of a middle support structure with support nodes provided in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the middle bracket node structure;

[0027] Figure 3 This is a front view of the main cable passing through the support node position;

[0028] Figure 4 for Figure 3 A schematic cross-sectional structure diagram of the locking member position;

[0029] Figure 5 A top view of the main cable passing through the support node;

[0030] Figure 6 is a side view of a single middle bracket;

[0031] Figure 7 for Figure 6 Schematic diagram of the structure after the A area in is rotated;

[0032] Figure 8 for Figure 7 Schematic diagram of the locking structure of the wire rope and the main rope in the connecting hole.

[0033] Among them, 10-pad; 110-arc surface structure; 20-locking piece; 210-connecting hole; 30-limiting part; 310-wire rope; 40-rope clamp; 510-support column; 520-crossbeam; 60-main rope. DETAILED DESCRIPTION

[0034] The core of the present invention is to disclose a bracket node to improve the stability of the main cable assembly and tensioning process.

[0035] Another core of the present invention is to provide a middle bracket including the above bracket node, and a flexible photovoltaic system including the above middle bracket.

[0036] In order to make the technical personnel in this field better understand the scheme of the present invention, the embodiments of the present invention are described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the content of the invention recorded in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary for the solutions of the invention recorded in the claims.

[0037] like Figure 1 and Figure 2As shown, the support node provided by the embodiment of the present invention includes a pad 10 and a locking member 20, wherein one side of the pad 10 is arranged to fit the cross beam 520 on the support, and at the same time, the side of the pad 10 facing away from the cross beam 520 is a curved surface structure 110, so as to prevent the cross beam 520 with a sharp corner directly contacting the main cable 60, and generating a sharp corner during the tensioning process of the main cable 60. Specifically, the pad 10 fits the cross beam 520 and is fixedly connected with the cross beam 520 as an integral structure, and the curved surface structure 110 on the pad 10 can be a conical surface, a cylindrical surface or a spherical surface. It should be noted that the purpose of setting the curved surface structure 110 is to avoid the problem of the main cable 60 being twisted at the corner when different support nodes are at different heights and the main cable 60 needs to change its position in the height direction, so the curved surface structure 110 needs to have a circular arc transition area in the length extension direction of the main cable 60. In some embodiments of the present invention, the arc surface structure 110 is designed as a partial cylindrical surface structure that is easy to process and assemble, that is, the arc surface structure 110 is a partial area of ​​a cylindrical surface, and the axis of the arc surface structure 110 is set at a preset angle with the length direction of the main cable 60. It should be noted that the axis of the arc surface structure 110 is at a preset angle with the length direction of the main cable 60 rather than a parallel structure to achieve the transition of the arc surface structure 110 to the main cable 60. In a preferred embodiment of the present invention, in order to make the main cable 60 have a more uniform transition effect on both sides of the crossbeam 520 and reduce the risk of skewing and sliding of the main cable 60, the axis of the arc surface structure 110 is perpendicular to the length direction of the main cable 60. The main cable 60 can maintain a minimum contact area with the arc surface structure 110 of the cushion block 10. When the locking member 20 locks the main cable 60 to the cushion block 10, the main cable 60 has a smaller movement space, thereby improving the structural stability of the main cable 60.

[0038] In the above embodiment, the locking member 20 is specifically a structure that passes through the cross beam 520, and the locking member 20 can cooperate with the arc surface structure 110 of the cushion block 10 to form a connecting hole 210. It should be noted that the connecting hole 210 is a hole structure with adjustable size, which can be expanded and contracted by passing the locking member 20 through the area of ​​the cross beam 520, so that the main cable 60 can have a larger docking space to pass through the connecting hole 210, and then contract to lock the main cable 60. On the basis of the above structure, the main cable 60 can have a larger assembly space and can easily pass through the connecting hole 210. At the same time, the locking member 20 enables the main cable 60 to dock with the arc structure 110 on the cushion block 10. Compared with the structure in the prior art in which the main cable 60 directly contacts the beam 520, it can have a smooth transition structure, and avoid the main cable 60 from being bent or knotted when there is a height change between adjacent bracket nodes, and being unable to continue to be tensioned. At the same time, compared with the structure in the prior art in which a roller node is set, there is only a cushion block 10 between the main cable 60 and the beam 520 for bearing the load, so that the main cable 60 and the beam 520 have a shorter distance. When the main cable 60 is subjected to a force, the force arm between it and the beam 520 is shorter, so that the beam 520 and the main cable 60 have stronger structural stability; and it should be noted that the cushion block 10 can be a cushion block 10 made of aluminum alloy, so as to have a good supporting effect and a strong weight, thereby reducing the load-bearing load of the beam 520.

[0039] In order to further optimize the above technical solution, the bracket node provided in the embodiment of the present invention also includes a limiting portion 30, which is used to limit the shaking of the main cable 60. Specifically, the limiting portion 30 is arranged through the connecting hole 210, one side of which is in contact with the arc surface structure 110 of the cushion block 10, and the other side is used to contact and support the main cable 60. The main cable 60 is pressed to the limiting portion 30 by the locking member 20, and the limiting portion 30 clamps the limiting main cable 60 in the axial direction of the arc surface structure 110, so that the main cable 60 can only be adjusted along its length direction when being tensioned, and will not shake on both sides of the length direction.

[0040] The limiting portion 30 is provided to reduce the risk of shaking of the main cable 60 and avoid the risk of the main cable 60 shaking at the support node position and causing wear and breakage. It can be provided with a groove structure for the main cable 60 to be inserted, or a protrusion structure can be used to limit the shaking space of the main cable 60 in the connection hole 210. In some embodiments of the present invention, such as Figure 2 and Figure 3As shown, the limiting portion 30 adopts a steel wire rope 310 structure. Specifically, at least two steel wire ropes 310 are arranged through the connecting hole 210, and the axis of the steel wire rope 310 is arranged parallel to the axis of the main rope 60. The main rope 60 is contacted with the two steel wire ropes 310 at the same time. Since the steel wire rope 310 and the main rope 60 are both cylindrical structures, the two steel wire ropes 310 can be stably located inside the connecting hole 210 due to the limiting components on both sides of the locking member 20, and the main rope 60 can be stuck in the gap between the two steel wire ropes 310, and the risk of shaking on both sides of the length direction is reduced by stacking and extruding the limiting method.

[0041] Further, in order to ensure the limiting effect of the steel wire rope 310 on the main rope 60, it is preferred that the projection of the steel wire rope 310 in the length direction of the main rope 60 covers the cross beam 520, that is, the length of the steel wire rope 310 needs to be greater than the width of the cross beam 520. While the steel wire rope 310 limits the main rope 60 in the connecting hole 210, it extends out of the connecting hole 210 in the length direction of the main rope 60 and has a region partially overlapping with the main rope 60. The above structure can increase the contact area between the steel wire rope 310 and the main rope 60 in the length direction of the main rope 60, so that when the main rope 60 is extended and contracted in its length direction, the steel wire rope 310 can still remain in the limiting structure in the connecting hole 210, and avoid the steel wire rope 310 slipping out of the connecting hole 210 and losing the limiting effect on the main rope 60.

[0042] At the same time, it should be noted that the areas of the wire rope 310 extending beyond the two sides of the cross beam 520 are also fixedly connected to the main rope 60 through the rope clamps 40, so that the wire rope 310 and the main rope 60 are fixedly connected as an integrated structure, which can not only prevent the wire rope 310 from slipping out of the connecting hole 210, that is, the rope clamp 40 is used to limit and prevent one side of the wire rope 310 from slipping out, and improve the limiting stability of the wire rope 310 on the main rope 60 in the connecting hole 210; at the same time, the integrated structure of the main rope 60 and the wire rope 310 can have a larger cross-sectional area at the position of the bracket node, that is, the fixing of the wire rope 310 enhances the strength and expands the cross-section of the main rope 60. At the position of the bracket node, the main rope 60 has a stronger rigidity effect. The wire rope 310 reduces the risk of bending of the main rope 60 while improving the bearing strength of the main rope 60 in the connecting hole 210, so that the main rope 60 has a more stable assembly effect.

[0043] It should be further explained that at least two rope clips 40 are preferably arranged at intervals on one side of the steel wire rope 310 extending out of the cross beam 520, and are specifically arranged according to the extension length of the steel wire rope 310, and it is only necessary to ensure that the arrangement of the rope clip 40 can maintain a stable fitting structure between the steel wire rope 310 and the main rope 60. At least two rope clips 40 can be arranged as backup for each other, so as to avoid the steel wire rope 310 falling off when a single rope clip 40 fails, thereby losing the limiting and structural reinforcement effect on the main rope 60.

[0044] In addition, it is preferred that the steel wire ropes 310 on both sides of the cross beam 520 in the length direction of the main cable 60 are of equal length and are fixedly connected to the main cable 60 through symmetrically arranged rope clamps 40, so that the structures on both sides of the cross beam 520 have better uniformity and stability.

[0045] Furthermore, in the bracket node provided in the embodiment of the present invention, the wire ropes 310 may be two wire ropes 310 arranged in parallel, and the two wire ropes 310 may be arranged in contact or spaced apart, and are arranged in parallel through the connection hole 210, while the main cable 60 is arranged between the two wire ropes 310 and is in contact with the two wire ropes 310 at the same time, so as to achieve the limiting effect. In some embodiments of the present invention, in order to reduce the number of installed parts, such as Figure 3 and Figure 4 As shown, a single steel wire rope 310 is provided, and the single steel wire rope 310, in the area within the connecting hole 210, wraps around the cross beam 520 once and then continues to extend in the length direction, that is, in the length direction of the main rope 60, the single steel wire rope 310 can extend on both sides of the cross beam 520 respectively, and be fixed to the main rope 60 respectively, and its winding structure around the cross beam 520 can form a two-circle structure in the connecting hole 210, thereby achieving a swing limiting effect on the main rope 60.

[0046] On the basis of the above-mentioned embodiments, the steel wire rope 310 and the main rope 60 are in a locked state in the connecting hole 210, and they have different relative position settings. In some embodiments of the present invention, the steel wire rope 310 serves as an intermediate structure to support the main rope 60 based on the cushion block 10, that is, the steel wire rope 310 supports the main rope 60 and presses the main rope 60 onto the locking member 20 during the process of shrinking and locking the connecting hole 210. At this time, the main rope 60 is only in contact with the locking member 20 and the steel wire rope 310, and forms a stable triangular structure with the steel wire rope 310. In order to improve the stability of the steel wire rope 310 in limiting and supporting the main rope 60, such as Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the axis line connecting the main cable 60 and the two steel wire ropes 310 in contact therewith forms an isosceles triangle, which specifically refers to that on the cross section along the length direction of the main cable 60, the axis line of the main cable 60 and the axis lines of the two steel wire ropes 310 are three points, and a triangular structure with the three points as vertices can form an isosceles triangle structure with the axis line of the main cable 60 as the vertex. The supporting force arms of the two steel wire ropes 310 on the main cable 60 are similar, and a more uniform supporting force can be provided, thereby reducing the risk of the main cable 60 sliding along one side of the steel wire rope 310.

[0047] In other embodiments of the present invention, the steel wire rope 310 is used as a filling structure at the top of the main rope 60 to contact the locking member 20 and fill the area between the main rope 60 and the locking member 20, that is, the main rope 60 maintains a contact state with the cushion block 10, and the steel wire rope 310 is set in the gap between the main rope 60 and the locking member 20, and in the process of shrinking and locking the connecting hole 210, the steel wire rope 310 gradually presses the main rope 60 to the cushion block 10, so as to achieve the purpose of stably setting the main rope 60 on the cushion block 10. At the same time, the main rope 60 can also form an isosceles triangle with the axis line of the two steel wire ropes 310 in contact with it, so as to enhance the locking effect of the steel wire rope 310 on the main rope 60.

[0048] It should be further explained that, in some other embodiments of the present invention, different specifications of the locking member 20 can also enable the steel wire rope 310 to press the main rope 60 from both sides of the main rope 60 toward the axial direction of the main rope 60, and the main rope 60 is in contact with the locking member 20 and the cushion block 10 at the same time, and the steel wire rope 310 fills the area on both sides of the main rope 60 to maintain the locking state of the main rope 60.

[0049] Furthermore, since the pad 10 is the basis for the main cable 60 to support the structure on the beam 520, in some embodiments of the present invention, the pad 10 fits one side of the beam 520, and the size in the length direction of the main cable 60 is larger than the width of the beam 520, so that the pad 10 can surround a side wall of the beam 520 in the length direction of the main cable 60, and has a larger contact area, thereby improving the fit effect of the pad 10. In addition, in order to reduce the weight of the bracket node, the arc-shaped protruding structure of the pad 10 can be set as a cavity, and a reinforcing rib plate is set inside it, so as to reduce the weight of the pad 10 while satisfying the support effect on the main cable 60.

[0050] In addition, in some embodiments of the present invention, the locking member 20 is a U-shaped bolt, which has a stable structural strength and can be assembled with sufficient convenience. Specifically, the cross beam 520 is provided with holes for the two sides of the U-shaped bolt to pass through, so that the bottom of the U-shaped structure of the U-shaped bolt protrudes from the arc surface structure 110 of the pad 10, so as to form a connecting hole 210 with the arc surface structure 110 for the main cable 60 to pass through. The passing area of ​​the connecting hole 210 can be adjusted by pushing or pulling out the U-shaped bolt, so as to facilitate the assembly and locking of the main cable 60. The open side of the U-shaped bolt can pass through one or two side walls of the cross beam 520, and preferably the open side of the U-shaped bolt passes through two side walls of the cross beam 520, so that the operator can perform the tightening operation from the outside of the cross beam 520, and has a larger tool operation space, thereby improving the convenience of locking and assembling the main cable 60 of the bracket node.

[0051] Furthermore, if Figure 1 and Figure 5As shown, an embodiment of the present invention further provides a middle bracket, which includes a bracket column 510 for fixedly connecting to the ground, and a beam 520 fixedly arranged on the bracket column 510. In particular, the beam 520 is provided with a plurality of bracket nodes provided in any of the above embodiments. It should be noted that the bracket nodes are arranged according to the number of photovoltaic panels and the bearing strength of the beam 520. The plurality of bracket nodes are arranged at intervals so that the main cables 60 are arranged at intervals to meet the bearing requirements of the photovoltaic panels. And since the above bracket nodes have the technical effects provided in any of the above embodiments, the middle bracket also has the above technical effects, which will not be described in detail herein.

[0052] Furthermore, an embodiment of the present invention also provides a method for installing a bracket node, which is used to install the bracket node provided by any of the above embodiments on the middle bracket. Specifically, the installation method includes at least the following steps:

[0053] S01: Pre-fix the main cable: After the main cable is tensioned, the U-bolt surrounds the main cable and passes through the crossbeam. The main cable is located in the connecting hole, and the U-bolt is in a non-locking state to allow the main cable to have freedom in the connecting hole.

[0054] S02: Pre-installed wire rope: Fix one end of the wire rope to the main rope through a rope clamp to form a fixed end, and pass the other free end of the wire rope through the connecting hole, wrap it around the beam, and pass it back through the connecting hole to form a two-strand wire rope structure in the connecting hole.

[0055] S03: Lock the wire rope: set a first cable catch at the free end of the wire rope, set a second cable catch on the main rope passing through the connecting hole, and pull the two cable catches toward each other until the wire rope is tightly combined with the crossbeam and the pad in a full circle, and the free end of the wire rope is taut.

[0056] S04: Fix the main rope: Use the rope clamp to lock and fix the free end of the wire rope on the main rope, tighten the U-bolt, and remove the rope clamp to complete the installation of the bracket node.

[0057] It should be noted that in step S03, the first and second cable clamps are tightened toward each other by a hand chain hoist to realize convenient locking of the wire rope under manual operation, and the spacing between the first and second cable clamps in the length direction of the main rope is greater than the hand chain hoist to ensure smooth setting of the hand chain hoist. At the same time, in the process of tightening the first and second cable clamps toward each other by the hand chain hoist, when the hand chain hoist is in an obvious drooping state at the beginning of locking, the hand chain hoist can be tightened at a faster speed, and when the wire rope begins to tighten and fit the crossbeam, the hand chain hoist needs to be operated in a state of deceleration and tightening to avoid over-tightening and causing the wire rope and the main rope to break.

[0058] In addition, an embodiment of the present invention further provides a flexible photovoltaic system, including a photovoltaic panel and a main cable 60 for supporting the photovoltaic panel. The flexible photovoltaic system is provided with a plurality of middle brackets provided in the above embodiments at intervals within the span area of ​​the main cable 60, so as to support the main cable 60 in partitions to meet the span requirement of the main cable 60. Since the above middle bracket has the technical effects provided by any of the above embodiments, the flexible photovoltaic system also has the above technical effects, which will not be repeated herein.

[0059] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used, and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. The scope of the invention involved in the present invention is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but also should cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A support node, characterized in that: It comprises a cushion block and a locking piece, one side of the cushion block is arranged in contact with the cross beam on the bracket, and the side of the cushion block facing away from the cross beam is a curved surface structure; the locking piece is arranged through the cross beam and cooperates with the curved surface structure of the cushion block to form a connecting hole, the connecting hole is for the main cable to pass through and lock the main cable to the cushion block; A limiting portion is provided in the connecting hole, the limiting portion passes through the connecting hole and contacts the arc surface structure, the main rope is pressed to the limiting portion by the locking member, the limiting portion is a steel wire rope and at least two strands of the steel wire rope pass through the connecting hole, the main rope contacts the two steel wire ropes at the same time and is fixedly connected to at least a partial area of ​​the steel wire rope.

2. The support node according to claim 1, characterized in that: The arc surface structure is a partial cylindrical structure, and the axis of the arc surface structure is perpendicular to the length direction of the main cable.

3. The support node according to claim 2, characterized in that: The projection of the steel wire rope in the length direction of the main rope exceeds the two sides of the cross beam, and the areas of the steel wire rope exceeding the two sides of the cross beam are respectively fixedly connected to the main rope through rope clamps.

4. The support node according to claim 1, characterized in that: Two steel wire ropes are arranged in parallel and both pass through the connecting hole.

5. The support node according to claim 1, characterized in that: The steel wire rope is provided in a single piece, and the single steel wire rope is provided along the length direction of the main rope, surrounds the cross beam once in the connecting hole, and then continues to extend.

6. The support node according to claim 2, characterized in that: The steel wire rope contacts the cushion block and presses the main rope to the locking member, and the axis line connecting the two strands of the steel wire rope contacting the main rope forms an isosceles triangle.

7. The support node according to claim 2, characterized in that: The steel wire rope contacts the locking member and presses the main rope to the cushion block, and the axis line connecting the two strands of the steel wire rope contacting the main rope forms an isosceles triangle.

8. The support node according to claim 1, characterized in that: The side of the cushion block that is in contact with the cross beam has a dimension larger than that of the cross beam in the length direction of the main cable, and is in contact with the edge of the cross beam through a bending structure.

9. A middle bracket, characterized in that: It comprises a support column and a crossbeam, wherein the crossbeam is fixedly arranged on the support column, and a plurality of support nodes according to any one of claims 1 to 8 are arranged on the crossbeam.

10. A method for installing a support node, for installing the support node according to any one of claims 1 to 8 on a middle support, the method comprising at least the following steps: Pre-fix the main cable: After the main cable is tensioned, the U-bolt surrounds the main cable and passes through the crossbeam. The main cable is located in the connection hole, and the U-bolt is in a non-locking state to allow the main cable to have freedom in the connection hole; Pre-installed wire rope: fix one end of the wire rope to the main rope through a rope clamp to form a fixed end, and pass the other free end of the wire rope through the connecting hole, wrap it around the crossbeam, and pass it back to the connecting hole again to form a two-strand wire rope structure in the connecting hole; Lock the wire rope: install the first cable catch at the free end of the wire rope, install the second cable catch on the main rope passing through the connection hole, and pull the two cable catches towards each other until the wire rope is tightly combined with the crossbeam and the pad in a full circle, and the free end of the wire rope is tight; Fix the main rope: Use the rope clamp to lock the free end of the wire rope on the main rope, tighten the U-bolt, and remove the rope clamp to complete the installation of the bracket node.

11. The method for installing a support node according to claim 10, characterized in that: In the step of locking the wire rope, the first cable clamp and the second cable clamp are tightened toward each other by a hand winch, and the distance between the first cable clamp and the second cable clamp in the length direction of the main rope is greater than the hand winch.

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