A guard cable clamp and support node for a flexible photovoltaic support

Abstract

The technical scheme belongs to the technical field of photovoltaic support and specifically relates to a protection cable clamp of a flexible photovoltaic support and a support node, which is used for connecting a cable on a cross beam and comprises the cable clamp, the cable clamp is provided with a clamping groove matched with the cable, one or more U-shaped bolt members are arranged on the cable clamp, the cable clamp is provided with through holes on opposite sides along the direction of the clamping groove, the two ends of the U-shaped bolt member respectively pass through the through holes on the corresponding sides, when the U-shaped bolt member is fixedly connected to the cross beam, the U-shaped bolt member cooperates with the clamping groove to limit the cable, the cable clamp serves as an integrally-formed base, the two ends of the U-shaped bolt member pass through the corresponding through holes and are fixed on the cross beam, the cable clamp is fixed at the same time, the U-shaped bolt member applies a constraint force, the cable is firmly clamped and limited in a predetermined position by the constraint force and the clamping groove of the cable clamp, reliable connection is achieved, the uniform clamping force provided by the U-shaped bolt member reduces the number of parts and machining processes, and the reliability of the anchoring node and the stability of the overall load bearing of the cable clamp are improved.

Description

Technical Field

[0001] This technical solution relates to the field of photovoltaic support technology, specifically a protective cable clamp and support node for a flexible photovoltaic support. Background Technology

[0002] A photovoltaic (PV) bracket is a support structure designed to place, install, and fix solar panels in a solar photovoltaic power generation system, thereby achieving the effect of fixing and supporting PV modules. Among them, the crossbeam anchor cable clamps are the core load-bearing and connecting components of the flexible PV bracket nodes, and their performance directly affects the overall stability and service life of the bracket.

[0003] Currently, flexible photovoltaic support beam anchor cable clamps on the market typically adopt a multi-component splicing configuration, which is then bolted to the beam structure and relies on welding to fix key connection points. The welding process is prone to weld defects (such as porosity, slag inclusion, and lack of fusion). As the dynamic tension of the cables continues to be borne, the stress concentration in the weld area will continue to intensify, leading to structural deformation and fatigue damage, causing prestress attenuation, structural stiffness degradation, weakening the anchoring reliability of the cable clamp system, and causing the entire support system to face potential structural instability risks. Utility Model Content

[0004] This technical solution aims to improve the problem of poor anchoring reliability caused by stress concentration and structural performance degradation due to welding process defects in traditional flexible photovoltaic supports. It provides a protective cable clamp and support node for flexible photovoltaic supports.

[0005] The purpose of this technical solution is achieved as follows: A protective cable clamp for a flexible photovoltaic support, used to connect cables to a crossbeam, comprising: The cable clamp has a clamping groove that matches the cable. One or more U-shaped bolts are disposed on the cable clamp. The cable clamp has through holes on opposite sides along the groove direction. The two ends of the U-shaped bolts pass through the through holes on the corresponding sides. When the U-shaped bolts are fixedly connected to the crossbeam, the U-shaped bolts cooperate with the groove to limit the cable.

[0006] Through the above technical solution, when the protective cable clamp and support node of a flexible photovoltaic support are in normal use, the cable clamp serves as an integrally formed base. The two ends of the U-shaped bolt are fixed to the crossbeam after passing through the corresponding through holes, so that the cable clamp is fixed at the same time. The U-shaped bolt applies a constraint force, which works together with the clamping groove of the cable clamp to firmly clamp and limit the cable in a predetermined position, thereby achieving a reliable connection. The uniform clamping force provided by the U-shaped bolt reduces the number of parts and processing steps, improves the reliability of the anchoring node and the overall load-bearing stability of the cable clamp.

[0007] Preferably, the cross-sectional shape of the clamping groove is semi-circular.

[0008] Through the above technical solution, the semi-circular groove cross section matches the circular cross section of the cable, increasing the contact area between the cable clamp and the cable, achieving a tighter and more uniform fit, compressing the swing space, and improving the stability of the clamping.

[0009] Preferably, the groove includes an expanded groove section one, a flat groove section and an expanded groove section two, the expanded groove section one and the expanded groove section two are respectively connected to the two ends of the flat groove section, and the expanded groove section one and the expanded groove section two are gradually expanded towards the through end away from the flat groove section.

[0010] Through the above technical solution, the clamping groove is further designed as a three-section structure. The gradually expanding design of the two ends of the groove allows the bending shape of the cable to transition smoothly when it enters and leaves the clamping area. The gradually expanding double-end channel effectively reduces the hard bending or sharp angle contact of the cable at the edge of the clamping groove, reduces wear, and improves the fatigue resistance of the cable.

[0011] Preferably, the first and second expansion sections have rounded corner surfaces along the edges of their through ends.

[0012] Through the above technical solution, the rounded corner design eliminates the sharp edges at the through-hole between the first and second expansion sections, and the rounded corner surface provides a smooth and continuous transition surface, further reducing frictional wear on the cable and improving its service life.

[0013] Preferably, the upper part of the clamping groove has a rounded corner surface along the edge of the groove opening.

[0014] Through the above technical solution, the rounded corner design of the second rounded corner surface replaces the sharp edges at the groove opening with a smooth and continuous transition surface. When the cable undergoes slight displacement or vibration in the groove due to wind vibration or load changes, its surface is always in contact with the smooth and continuous rounded corner surface, further reducing frictional wear on the cable and thus improving its service life.

[0015] Preferably, the cable clamp has a protrusion corresponding to the through hole.

[0016] Through the above technical solution, a through hole is formed on the inner side of the raised boss on the cable clamp, and the boss reinforces the surrounding structure of the through hole to provide a stable connection base.

[0017] Preferably, the through hole has a notch that connects to the groove, the notch being used to provide clearance for the arc-shaped segment of the corresponding U-bolt.

[0018] The above technical solution provides precise space avoidance for the curved section of the U-bolt, allowing the curved section to be completely placed within the notch, avoiding the bolt itself from pressing against the edge of the groove, and making the U-shaped section of the U-bolt closer to the cable to form a clamping effect, maintaining the optimal stress distribution state of the groove design, thereby further improving the reliability and integrity of the anchorage.

[0019] A support node further includes a protective cable clamp of a flexible photovoltaic support as described in any of the above claims, and also includes a crossbeam and a cable, wherein the cable clamps are respectively installed at both ends of the crossbeam, and the cable is connected to the cable clamps.

[0020] The key and beneficial technical effects of this technical solution compared to existing technologies are: 1. This technical solution uses an integrally formed cable clamp and a U-shaped bolt to apply uniform constraint force when the bolt is fixed on the crossbeam. The clamp and the clamp groove together hold the cable, reducing the number of parts and processing steps, improving the reliability of the anchoring node and the overall load-bearing stability, and ensuring that the cable is firmly connected to the predetermined position.

[0021] 2. This technical solution uses a clamping groove including an expanded groove section one, a flat groove section, and an expanded groove section two. Both expanded groove sections one and two are gradually widened towards the through end away from the flat groove section. The clamping groove adopts a design that connects the two gradually widening sections with the flat groove section, so that the cable bends smoothly when entering and exiting the clamping area, reducing local wear caused by hard bending and sharp angle contact, and improving the fatigue resistance and service life of the cable.

[0022] 3. This technical solution eliminates sharp edges by adding rounded corner surfaces one and two to the inlet and outlet of the groove and the edge of the groove, making the contact surface of the cable smooth and continuous, effectively reducing wear caused by contact friction during installation and operation, thereby further improving the service life of the cable. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the support node in the embodiment; Figure 2 This is a partial exploded view of the support node in the embodiment; Figure 3 This is a schematic diagram of the overall structure of the cable clamp in the protective cable clamp of the flexible photovoltaic support in an embodiment; Figure 4 Protective cable clips for flexible photovoltaic supports (example embodiment) Figure 3 Partial sectional view.

[0024] Reference numerals: 1. Cable clamp; 2. U-bolt; 3. Groove; 31. Widened groove section one; 32. Flat groove section; 33. Widened groove section two; 4. Through hole; 41. Notch; 5. Boss; 61. Rounded corner surface one; 62. Rounded corner surface two; 100. Crossbeam; 200. Cable. Detailed Implementation

[0025] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0026] Example: See Figure 1 , Figure 3 and Figure 4 A protective cable clamp for a flexible photovoltaic support includes a cable clamp 1, which adopts an integral structure. The cable clamp 1 has a clamping groove 3 located at the upper end of the cable clamp 1. The clamping groove 3 extends through the opposite ends of the cable clamp 1 along its length. The shape of the clamping groove 3 matches the cable 200. Its groove cross-section is semi-circular, and the cable 200 can be stably engaged in the clamping groove 3. The groove opening has a rounded corner surface 62. The side of the cable clamp 1 away from the groove opening of the clamping groove 3 is a plane, which can stably abut against the corresponding plane of the crossbeam 100.

[0027] The clamping groove 3 includes an expanded groove section 31, a flat groove section 32, and an expanded groove section 33. The expanded groove section 31 and the expanded groove section 33 are respectively connected to the two ends of the flat groove section 32, which is located in the middle. The expanded groove section 31 and the expanded groove section 33 are both gradually expanded towards the through end away from the flat groove section 32. The expanded groove section 31 and the expanded groove section 33 have a rounded corner surface 61 along the edge of the through end. Each edge of the clamp 1 can be set as a rounded corner.

[0028] The cable clamp 1 has protruding bosses 5 on opposite sides along the groove direction of the clamping groove 3. In this embodiment, two sets of bosses 5 are shown, each set including two opposite bosses 5. Each boss 5 has a matching through hole 4. The through hole 4 passes through the corresponding boss 5 in the vertical direction. The side of the through hole 4 near the clamping groove 3 has a notch 41, which connects to the clamping groove 3.

[0029] It also includes one or more U-shaped bolts 2, which are U-shaped and include an arc segment and two straight edge segments connected to both ends of the arc segment. Specifically, there are two U-shaped bolts 2, which are provided one-to-one with the two sets of bosses 5, so that the straight edge segments at both ends of each U-shaped bolt 2 pass through the corresponding through holes 4 on both sides until the U-shaped bolt 2 is connected to the plane of the corresponding crossbeam 100. The notch 41 provides clearance for the arc segment of the U-shaped bolt 2 and confines the cable 200 within the U-shaped bolt 2 and the clamping groove 3.

[0030] The specific work process of this plan is as follows: This technical solution uses cable clamp 1 as an integrally formed base. The two ends of U-bolt 2 pass through the corresponding through holes 4 and are fixed to the crossbeam 100. This allows cable clamp 1 to be fixed at the same time, and U-bolt 2 to apply a constraint force. Together with the clamping groove 3 of cable clamp 1, it firmly clamps and limits the cable 200 to a predetermined position, achieving a reliable connection. The uniform clamping force provided by the U-bolt reduces the number of parts and processing steps, improves the reliability of the anchoring node and the overall load-bearing stability of cable clamp 1.

[0031] See Figure 1 and Figure 2 A support node, further comprising a crossbeam 100 and a cable 200, wherein cable clamps 1 are respectively installed at both ends of the crossbeam 100, and the cable 200 is connected to the cable clamps 1.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A protective cable clamp for a flexible photovoltaic support, used to connect a cable (200) to a crossbeam (100), characterized in that, include: Cable clamp (1), wherein the cable clamp (1) has a clamping groove (3) that matches the cable (200); One or more U-bolts (2) are provided on the cable clamp (1). The cable clamp (1) has through holes (4) on opposite sides along the groove (3). The two ends of the U-bolts (2) pass through the through holes (4) on the corresponding sides. When the U-bolts (2) are fixedly connected to the crossbeam (100), the U-bolts (2) cooperate with the groove (3) to limit the cable (200).

2. The protective cable clamp for a flexible photovoltaic support according to claim 1, characterized in that: The cross-sectional shape of the groove (3) is semi-circular.

3. The protective cable clamp for a flexible photovoltaic support according to claim 1 or 2, characterized in that: The groove (3) includes an expansion section one (31), a flat groove section (32) and an expansion section two (33). The expansion section one (31) and the expansion section two (33) are respectively connected to the two ends of the flat groove section (32), and the expansion section one (31) and the expansion section two (33) are both gradually expanded towards the through end away from the flat groove section (32).

4. The protective cable clamp for a flexible photovoltaic support according to claim 3, characterized in that: The first (31) and the second (33) of the expansion groove have a rounded corner surface (61) along the edge of the through end.

5. The protective cable clamp for a flexible photovoltaic support according to claim 1, characterized in that: The upper part of the clamping groove (3) has a rounded corner surface (62) along the edge of the groove opening.

6. The protective cable clamp for a flexible photovoltaic support according to claim 1, characterized in that: The cable clip (1) has a protruding boss (5) that corresponds to the through hole (4).

7. The protective cable clamp for a flexible photovoltaic support according to claim 6, characterized in that: The through hole (4) has a notch (41) that connects to the groove (3) and the notch (41) provides clearance for the arc segment of the U-bolt (2).

8. A support node, characterized in that: It also includes a protective cable clamp for a flexible photovoltaic support as described in any one of claims 1 to 7, and further includes a crossbeam (100) and a cable (200), wherein the cable clamp (1) is installed at both ends of the crossbeam (100), and the cable (200) is connected to the cable clamp (1).

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