Photovoltaic pull cable cast-in-place emergency anchoring device

Abstract

The utility model discloses a kind of photovoltaic cable-stayed cable field cast-in-place emergency anchoring devices, it is related to tensioning anchorage device, including split type's upper half anchor cup and lower half anchor cup, the upper half anchor cup and lower half anchor cup are combined to form anchor cup, the anchor cup inside is formed with a pouring hole cavity, the both ends of the anchor cup are equipped with the sealing plate for closing pouring hole cavity port, the upper half anchor cup is above and is equipped with the pouring channel being connected with pouring hole cavity, the upper half anchor cup and lower half anchor cup are connected by multiple connecting wedge blocks and are wedge-locked. The utility model is formed by pouring anchoring form anchor on the cable body, realizes the stable clamping in the cable body, and the dismounting operation of device is simple and convenient, greatly improves construction efficiency.

Description

Technical Field

[0001] This utility model relates to tension anchors, and more specifically, to a photovoltaic cable on-site casting type emergency anchoring device. Background Technology

[0002] Conventional extrusion sleeves are mostly integral cylindrical structures, formed by axial cold extrusion or radial compression to achieve anchorage between the sleeve and the prestressing tendon. Conventional integral extrusion sleeves require the sleeve and extrusion equipment to pass through the prestressing tendon, and the equipment must be removed from the non-stressed section at the rear end of the tendon after extrusion. However, when anchoring with extrusion sleeves in the middle of a considerable length of prestressing tendon is required, especially in flexible photovoltaic cable modules where the cable length can reach thousands of meters, the installation and removal of the integral extrusion sleeve and equipment, as well as the removal of the extrusion equipment after extrusion, become extremely difficult.

[0003] To facilitate understanding of the application of integral extrusion sleeves in component cables, such as Figure 1 The diagram illustrates a connection arrangement for the component cables. The component cables are anchored to the I-beams of the end piles via integral compression sleeves. The free section of the component cable tumbles over the I-beam of the central pile. The more I-beams it tumbles over, the greater the friction and the greater the loss of cable force. This could lead to the component cable's tension gradually being completely lost at the contact point with the I-beam during tensioning at both ends, while the component cable at the central pile position, far from the end piles, has no cable force and is in a zero-stress state, preventing the cable net from forming. In this case, holes are pre-drilled in the I-beams at some central pile locations to allow the cable to pass through. The cable is then passed through these holes in advance, and integral compression sleeves are fabricated on-site on both sides of the holes to fix the cable net's shape. Figure 2 As shown, the longer the non-stressed section at the rear end of the cable, the more difficult it will be to anchor the integral extrusion sleeve and its equipment, as well as to remove the extrusion equipment after extrusion is completed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a field-cast emergency anchoring device for photovoltaic cables, which addresses the shortcomings of existing technologies. By using a casting anchoring method on the cable body, a stable clamping is formed in the cable body. Furthermore, the device is simple and convenient to assemble and disassemble, greatly improving construction efficiency.

[0005] The present invention discloses a photovoltaic cable on-site casting-type emergency anchoring device, comprising a split upper half anchor cup and a lower half anchor cup, which are assembled to form an anchor cup. An anchor cup has a casting cavity inside, and both ends of the anchor cup are provided with sealing plates for sealing the port of the casting cavity. A casting channel communicating with the casting cavity is opened on the upper half anchor cup. The upper half anchor cup and the lower half anchor cup are wedge-connected by multiple connecting wedges.

[0006] Preferably, the casting cavity is a conical cavity.

[0007] Preferably, the sealing plate consists of two independent half-plates, each of which is detachably mounted on the end of the anchor cup.

[0008] Preferably, the sealing plate has through holes that match the cable body.

[0009] Preferably, the through holes and casting cavities are arranged coaxially with the cable body.

[0010] Preferably, the connecting wedge has an inner cavity, and both sides of the inner cavity have inclined surfaces arranged from the bottom outwards; the upper half of the anchor cup has an upper half insertion hole with the same number as the connecting wedge, and the lower half of the anchor cup has a lower half insertion hole with the same number as the connecting wedge, the upper half insertion hole has an upper half wedge, and the lower half insertion hole has a lower half wedge, the upper half wedge and the lower half wedge together form a wedge that matches the inner cavity.

[0011] Preferably, the connecting wedge has an inner cavity, and protrusions are provided on both sides of the inner cavity. The surface of the protrusions is provided with a second inclined surface that is inclined from one end of the connecting wedge to the other end. An upper half of the anchor cup has an upper half outer groove at the end corner that matches the protrusion on one side of the inner cavity, and a lower half of the anchor cup has a lower half outer groove at the end corner that matches the protrusion on the other side of the inner cavity.

[0012] Preferably, a groove is provided between the protrusion and the bottom of the inner cavity, and slide rails matching the groove are provided at the edges of the upper and lower outer grooves.

[0013] Preferably, the connecting wedge is fixed on the surface of the lower half anchor cup that connects to the upper half anchor cup. A wedge cavity is provided between the connecting wedge and the surface of the lower half anchor cup. The side of the wedge cavity facing the surface of the lower half anchor cup has an inclined surface arranged from its bottom outwards. An insertion hole is provided in the upper half anchor cup. An inner wedge body matching the wedge cavity is provided in the insertion hole.

[0014] Preferably, the connecting wedge and the lower half anchor cup are an integral structure.

[0015] Beneficial effects The advantages of this invention are as follows: This invention uses a combination of upper and lower anchor cups and connecting wedges to post-cast the anchoring material into the cable body, forming a stable clamp in the middle of the cable, thus meeting the clamping requirements. Furthermore, this design allows for rapid installation into a single anchor cup, is simple in structure, safe and reliable, and enables quick casting and anchoring of the cable. Compared to the extrusion sleeve method used in existing technologies, it eliminates the need for anchor insertion and removal along the cable body, significantly improving construction efficiency. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a component cable connection arrangement.

[0017] Figure 2 Based on Figure 1 A schematic diagram of the improved connection arrangement of the component cables.

[0018] Figure 3 This is a schematic diagram of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 1 of this utility model; Figure 3 In the diagram, (a) is a cross-sectional view of the device, (b) is a top view of the device, and (c) is a three-dimensional view of the device.

[0019] Figure 4 This is a schematic diagram of the upper half of the anchor cup structure of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 1 in this utility model; Figure 4 In the diagram, (a) is a front view of the upper half of the anchor cup, (b) is a side view of the upper half of the anchor cup, (c) is a top view of the upper half of the anchor cup, and (d) is a three-dimensional view of the upper half of the anchor cup.

[0020] Figure 5 This is a schematic diagram of the lower half of the anchor cup structure of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 1 in this utility model; Figure 5 In the diagram, (a) is a front view of the lower half of the anchor cup, (b) is a side view of the lower half of the anchor cup, (c) is a top view of the lower half of the anchor cup, and (d) is a three-dimensional view of the lower half of the anchor cup.

[0021] Figure 6 This is a schematic diagram of the connecting wedge block structure of the photovoltaic cable field-cast emergency anchoring device based on Embodiment 1 in this utility model; Figure 6 In the diagram, (a) is a front view of the connecting wedge, (b) is a side view of the connecting wedge, (c) is a top view of the connecting wedge, and (d) is a three-dimensional view of the connecting wedge.

[0022] Figure 7 This is a schematic diagram of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 2 of this utility model; Figure 7 In the diagram, (a) is a cross-sectional view of the device, (b) is a top view of the device, and (c) is a three-dimensional view of the device.

[0023] Figure 8 This is a schematic diagram of the upper half of the anchor cup structure of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 2 of this utility model; Figure 8In the diagram, (a) is a front view of the upper half of the anchor cup, (b) is a side view of the upper half of the anchor cup, (c) is a top view of the upper half of the anchor cup, and (d) is a three-dimensional view of the upper half of the anchor cup.

[0024] Figure 9 This is a schematic diagram of the lower half of the anchor cup structure of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 2 of this utility model; Figure 9 In the diagram, (a) is a front view of the lower half of the anchor cup, (b) is a side view of the lower half of the anchor cup, (c) is a top view of the lower half of the anchor cup, and (d) is a three-dimensional view of the lower half of the anchor cup.

[0025] Figure 10 This is a schematic diagram of the connecting wedge block structure of the photovoltaic cable field-cast emergency anchoring device based on Embodiment 2 in this utility model; Figure 10 In the diagram, (a) is a front view of the connecting wedge, (b) is a side view of the connecting wedge, (c) is a top view of the connecting wedge, and (d) is a three-dimensional view of the connecting wedge.

[0026] Figure 11 This is a schematic diagram of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 3 of this utility model; Figure 11 In the diagram, (a) is a cross-sectional view of the device, (b) is a top view of the device, and (c) is a three-dimensional view of the device.

[0027] Figure 12 This is a schematic diagram of the upper half of the anchor cup structure of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 3 of this utility model; Figure 12 In the diagram, (a) is a front view of the upper half of the anchor cup, (b) is a side view of the upper half of the anchor cup, (c) is a top view of the upper half of the anchor cup, and (d) is a three-dimensional view of the upper half of the anchor cup.

[0028] Figure 13 This is a schematic diagram of the lower half of the anchor cup structure of the photovoltaic cable on-site casting emergency anchoring device based on Embodiment 3 of this utility model; Figure 13 In the diagram, (a) is a front view of the lower half of the anchor cup, (b) is a side view of the lower half of the anchor cup, (c) is a top view of the lower half of the anchor cup, and (d) is a three-dimensional view of the lower half of the anchor cup.

[0029] Wherein: 1-Upper half anchor cup, 2-Lower half anchor cup, 3-Sealing plate, 4-Pouring hole cavity, 5-Cable body, 6-Connecting wedge block, 7-Pouring channel, 8-Upper half insertion hole, 9-Upper half wedge body, 10-Lower half insertion hole, 11-Lower half wedge body, 12-Inner cavity, 13-Inclined surface one, 14-Upper half outer groove, 15-Slide rail, 16-Lower half outer groove, 17-Protrusion block, 18-Inclined surface two, 19-Slide groove, 20-Insertion hole, 21-Inner wedge body, 22-Wedge cavity, 23-Inclined surface three. Detailed Implementation

[0030] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention. See Figures 3-13 This utility model discloses a photovoltaic cable on-site casting-type emergency anchoring device, comprising a split upper half anchor cup 1 and a lower half anchor cup 2. The upper half anchor cup 1 and the lower half anchor cup 2 are assembled to form an anchor cup, which is cylindrical in shape. An internal casting cavity 4 is formed within the anchor cup. Both ends of the anchor cup are equipped with sealing plates 3 for sealing the ports of the casting cavity 4. A casting channel 7 communicating with the casting cavity 4 is opened above the upper half anchor cup 1. The upper half anchor cup 1 and the lower half anchor cup 2 are connected by four connecting wedges 6.

[0031] This invention employs a combination of upper and lower anchor cups and connecting wedges 6 to post-cast anchoring material into the cable body, forming a stable clamp in the middle of the cable. The clamping efficiency coefficient exceeds 95%, meeting the clamping requirements. Furthermore, this design allows for rapid installation into a single anchor cup, featuring a simple structure, high safety and reliability, and quick cable anchoring. Compared to the extrusion sleeve method used in existing technologies, it significantly improves construction efficiency.

[0032] In this invention, the casting cavity 4 is a conical cavity. That is, the casting body after casting using this device is conical in shape. The conical structure can achieve the effect of "the tighter it gets," improving the stability of the clamping.

[0033] To avoid the need for "threading" the sealing plate 3, the sealing plate 3 is composed of two independent half-plates, each of which can be detachably installed at the end of the anchor cup. Specifically, the half-plates can be bolted to the end of the anchor cup. Furthermore, each half-plate can be installed independently on one of the anchor cups, or a half-plate can be installed across the anchor cups, such as bolting the half-plates to the ends of both upper and lower anchor cups simultaneously, thus further positioning the two anchor cups. After the two half-plates are assembled, a through hole matching the cable body 5 is formed for the cable body 5 to pass through. During casting, the gap between the through hole wall and the cable body 5 needs to be filled. Furthermore, after the cable body 5 is installed in the device, the through hole, the casting cavity 4, and the cable body 5 are arranged coaxially to ensure that the cast cable body 5 is centered in the casting, improving the stress balance of the casting.

[0034] In use, the on-site casting type emergency anchoring device of this utility model involves installing an upper half anchor cup 1 and a lower half anchor cup 2 on the outside of the steel strand requiring anchoring in the middle section of the photovoltaic cable, aligning the two ends of the two half anchor cups so that the cable body 5 is located in the casting cavity 4. Next, four connecting wedges 6 are inserted into the wedge installation locations of the upper and lower half anchor cups, ensuring the inclined surfaces of the connecting wedges 6 contact the inclined surfaces of the upper and lower half anchor cups. The connecting wedges 6 are then tightened to ensure a tight fit between the upper and lower half anchor cups. Finally, two half-sealing plates 3 are installed at each end of the anchor cup, and the sealing between the sealing plates 3 and the steel strand is ensured, completing the installation of the device. Before casting, the assembled device is fixed in place. Then, zinc-copper alloy or high-strength mortar, or other anchoring materials, are poured through the casting channel 7 of the upper half anchor cup 1. After casting is completed and the casting meets the conditions for detachable anchorage, the sealing plates 3 and the wedge connection structure are disassembled sequentially, and the two half anchor cups are removed.

[0035] This utility model provides the following three implementation methods for the specific installation of the connecting wedge block 6.

[0036] Example 1 like Figures 3-6 As shown, the connecting wedge 6 has an inner cavity 12, and both sides of the inner cavity 12 have inclined surfaces 13 arranged from the bottom outwards. The upper half anchor cup 1 has four upper half insertion holes 8, and the lower half anchor cup 2 has four lower half insertion holes 10. The upper half insertion holes 8 have an upper half wedge 9, and the lower half insertion holes 10 have a lower half wedge 11. The upper half wedge 9 and the lower half wedge 11 form a wedge that matches the inner cavity 12.

[0037] When installing the connecting wedge 6, simply insert the connecting wedge 6 into the socket formed by the upper half of the insertion hole 8 and the lower half of the insertion hole 10, and then push the connecting wedge 6 to one side of the wedge body, so that the wedge body enters the inner cavity 12. The inclined surface 13 in the inner cavity 12 contacts the inclined surface in the wedge body, and the connecting wedge 6 is then tightened, thereby locking the upper and lower half anchor cups and ensuring that the upper and lower half anchor cups fit tightly together. This method is characterized by convenient and reliable installation and easy disassembly.

[0038] Example 2 like Figures 7-10 As shown, the connecting wedge 6 has an inner cavity 12, and both sides of the inner cavity 12 have protrusions 17. The surface of the protrusions 17 has an inclined surface 18 that is inclined from one end of the connecting wedge 6 to the other end. The four corners of the upper half anchor cup 1 are provided with upper half outer grooves 14 that match the protrusions 17 on one side of the inner cavity 12. The four corners of the lower half anchor cup 2 are provided with lower half outer grooves 16 that match the protrusions 17 on the other side of the inner cavity 12.

[0039] When installing the connecting wedge 6, simply align the protrusion 17 in the inner cavity 12 of the connecting wedge 6 with its corresponding upper / lower half of the outer groove, and then push the connecting wedge 6 into the outer groove, so that the protrusion 17 enters its corresponding upper / lower half of the outer groove. The inclined surface 18 in the protrusion 17 contacts the inclined surface in the outer groove, and the connecting wedge 6 is then tightened, thereby locking the upper and lower half of the anchor cups and ensuring a tight fit between them. This method, by employing an external installation of the connecting wedge 6, not only possesses the characteristics of Embodiment 1, but also makes the installation and removal of the connecting wedge 6 simpler and more convenient.

[0040] Furthermore, to further improve the reliability of the connecting wedge 6 installation, a groove 19 is provided between the protrusion 17 and the bottom of the inner cavity 12, and slide rails 15 matching the groove 19 are provided at the edges of the upper half of the outer groove 14 and the lower half of the outer groove 16. The guide positioning of the connecting wedge 6 during assembly and disassembly through the slide rails 15 and the groove 19 structure avoids the problem of insufficient locking force caused by the outer displacement of the connecting wedge 6 from the anchor cup when it is struck, resulting in a reduced contact area between the connecting wedge 6 and the anchor cup. This achieves the goal of improving the reliability of the connecting wedge 6 installation.

[0041] Example 3 like Figures 11-13As shown, the connecting wedge 6 is fixed to the surface of the lower half anchor cup 2 that connects to the upper half anchor cup 1. Specifically, the connecting wedge 6 and the lower half anchor cup 2 are an integral structure, which can ensure the strength of the connection between the connecting wedge 6 and the lower half anchor cup 2. A wedge cavity 22 is provided between the surface of the connecting wedge 6 and the lower half anchor cup 2. On the side of the wedge cavity 22 facing the surface of the lower half anchor cup 2, there is an inclined surface 23 that is arranged from the bottom outward. An insertion hole 20 is provided in the upper half anchor cup 1, and an inner wedge 21 that matches the wedge cavity 22 is provided in the insertion hole 20.

[0042] When installing the connecting wedge 6, simply insert the connecting wedge 6 into the insertion hole 20, and then push the connecting wedge 6 towards the inner wedge body 21, causing the inner wedge body 21 to enter the wedge cavity 22. The inclined surface 23 in the wedge cavity 22 contacts the inclined surface in the inner wedge body 21. By tapping one of the half anchor cups, the connecting wedge 6 is tightened, thereby locking the upper and lower half anchor cups and ensuring a tight fit between them. Although this method uses an internal installation of the connecting wedge 6, because the connecting wedge 6 and the lower half anchor cup 2 are an integral structure, the anchor cup itself contains the connecting wedge 6, improving the integration of the device and making it more convenient to use.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A photovoltaic cable on-site casting type emergency anchoring device, characterized in that, It includes a split upper half anchor cup (1) and a lower half anchor cup (2). The upper half anchor cup (1) and the lower half anchor cup (2) are assembled to form an anchor cup. A casting cavity (4) is formed inside the anchor cup. Both ends of the anchor cup are provided with sealing plates (3) for sealing the port of the casting cavity (4). A casting channel (7) connected to the casting cavity (4) is opened on the upper half anchor cup (1). The upper half anchor cup (1) and the lower half anchor cup (2) are connected by multiple connecting wedges (6).

2. The photovoltaic cable on-site casting type emergency anchoring device according to claim 1, characterized in that, The casting cavity (4) is a conical cavity.

3. The on-site casting type emergency anchoring device for photovoltaic cables according to claim 1, characterized in that, The sealing plate (3) consists of two independent half-plates, each of which is detachably mounted on the end of the anchor cup.

4. The on-site casting type emergency anchoring device for photovoltaic cables according to claim 1, characterized in that, The sealing plate (3) has through holes that match the cable body (5).

5. The on-site casting type emergency anchoring device for photovoltaic cables according to claim 4, characterized in that, The through hole and casting cavity (4) are arranged coaxially with the cable body (5).

6. A photovoltaic cable on-site casting type emergency anchoring device according to any one of claims 1-5, characterized in that, The connecting wedge (6) has an inner cavity (12), and both sides of the inner cavity (12) are provided with inclined surfaces (13) arranged from the bottom outwards; the upper half anchor cup (1) has an upper half insertion hole (8) with the same number as the connecting wedge (6), and the lower half anchor cup (2) has a lower half insertion hole (10) with the same number as the connecting wedge (6). The upper half insertion hole (8) is provided with an upper half wedge (9), and the lower half insertion hole (10) is provided with a lower half wedge (11). The upper half wedge (9) and the lower half wedge (11) form a wedge that matches the inner cavity (12).

7. A photovoltaic cable on-site casting type emergency anchoring device according to any one of claims 1-5, characterized in that, The connecting wedge (6) has an inner cavity (12), and protrusions (17) are provided on both sides of the inner cavity (12). The surface of the protrusions (17) is provided with a second inclined surface (18) that is inclined from one end of the connecting wedge (6) to the other end. The upper half of the anchor cup (1) has an upper half outer groove (14) that matches the protrusion (17) on one side of the inner cavity (12) at the end corner. The lower half of the anchor cup (2) has a lower half outer groove (16) that matches the protrusion (17) on the other side of the inner cavity (12) at the end corner.

8. The on-site casting type emergency anchoring device for photovoltaic cables according to claim 7, characterized in that, A groove (19) is provided between the protrusion (17) and the bottom of the inner cavity (12), and a slide rail (15) matching the groove (19) is provided at the edges of the upper half outer groove (14) and the lower half outer groove (16).

9. A photovoltaic cable on-site casting type emergency anchoring device according to any one of claims 1-5, characterized in that, The connecting wedge (6) is fixed on the surface of the lower half anchor cup (2) that is connected to the upper half anchor cup (1). A wedge cavity (22) is provided between the connecting wedge (6) and the surface of the lower half anchor cup (2). The wedge cavity (22) has a slope three (23) arranged from its bottom outward on the side facing the surface of the lower half anchor cup (2). An insertion hole (20) is provided in the upper half anchor cup (1). An inner wedge (21) matching the wedge cavity (22) is provided in the insertion hole (20).

10. A photovoltaic cable on-site casting type emergency anchoring device according to claim 9, characterized in that, The connecting wedge (6) and the lower half anchor cup (2) are an integral structure.

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