A multi-strand wire group anchor system comb wire device

Abstract

The utility model discloses a kind of porous steel strand group anchor system comb line device, including comb line board, J type comb and at least two positioning mechanisms;The comb line board includes connecting rod, comb tooth being spaced apart in the side of connecting rod;J type comb is crossed with comb tooth and is arranged, and its J type end is used to hook the comb tooth outside comb line board;Positioning mechanism is used to fix the intersection of J type comb and comb tooth farthest from connecting rod.This utility model discloses a kind of porous steel strand group anchor system comb line device, can improve work efficiency, improve the applicability of comb line device, improve the stability of comb line device.

Description

Technical Field

[0001] This utility model relates to the field of steel strand combing technology, and in particular to a combing device for a multi-hole steel strand group anchor system. Background Technology

[0002] The multi-hole steel strand group anchor system is one of the most widely used prestressed systems. Its core components are steel strand bundles, anchor plates, and wedges. During the installation of the anchor plates and wedges and the tensioning process, each steel strand needs to be threaded through the anchor plate one by one, aligning with the holes. Because the holes on the anchor plate are small and the steel strands themselves are stiff and difficult to bend, pushing the anchor plate through all the steel strands is extremely difficult, and the difficulty increases with the number of steel strands. After the anchor plates are installed, during the tensioning operation, the entire bundle of steel strands needs to be threaded through the corresponding holes in the limiting plate and the tool anchor plate, a time-consuming and labor-intensive process.

[0003] Currently, some existing technologies use combing devices to replace the traditional manual combing method for aligning the wires. For example, Chinese patent CN103184799A discloses a special steel comb for threading prestressed steel strands and its usage method. The steel comb includes a strip-shaped comb body with a row of teeth extending from one side. The width of the teeth matches the spacing between the two rows of holes in the anchor block, and the spacing between adjacent teeth matches the diameter of the holes in the anchor block. A comb handle extends from the other side of the comb body. This existing technology uses two such steel combs arranged crosswise to form a cross-tooth area that accommodates each steel strand, thus avoiding the steel strands from crossing, knotting, or misaligning. However, the two steel combs are arranged relatively independently, resulting in poor stability during construction, high labor costs, and reduced construction efficiency. To address this issue, Chinese patent CN210104585U discloses an anchor installation bundle fork, comprising an anchor body, a through hole, a first bundle fork, and a second bundle fork. The anchor body has a through hole at its top, and the first and second bundle forks are arranged intersectingly. The fork heads of the first and second bundle forks are integrally formed and connected in a mesh pattern. This prior art bundle fork is only applicable to anchors with one type of hole arrangement, resulting in limited applicability. Furthermore, during the installation of the steel strand, manual labor is still required to pass the steel strand through the mesh through hole of the fork head, leading to low construction efficiency. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a combing device for a multi-hole steel strand group anchor system, aiming to solve the problems of low construction efficiency, poor applicability to anchors with different hole arrangements, and lack of positioning structure in the existing technology.

[0005] The present invention achieves the above objectives by adopting the following technical solution:

[0006] A combing device for a multi-hole steel strand anchor system is used to comb the steel strands through the corresponding through holes of the anchor plate. It includes a combing plate, J-shaped comb bars, and at least two positioning mechanisms. The combing plate includes a connecting rod and comb teeth spaced apart on one side of the connecting rod. The J-shaped comb bars are arranged intersectingly with the comb teeth. The J-shaped ends of the J-shaped comb bars are used to hook onto the comb teeth on the outer side of the combing plate. The extending direction of the comb teeth is adapted to one of the transverse or longitudinal distribution of the through holes in the anchor plate, and the extending directions of the connecting rod and the J-shaped comb bars are adapted to the other of the transverse or longitudinal distribution of the through holes in the anchor plate. The positioning mechanisms are used to fix the intersection of the J-shaped comb bars and comb teeth at the farthest point from the connecting rod.

[0007] In this technical solution, the dimensions of the comb plate and J-shaped comb bars can be determined according to the arrangement and size of the steel strand holes in the anchor plate. Following one direction of the anchor plate's through-hole distribution—either transverse or longitudinal—the teeth of the comb plate are passed through the corresponding steel strand rows to comb each row of steel strands. Following the other direction, J-shaped comb bars are inserted one by one, starting from the corresponding position near the connecting rod, from the straight end of the J-shaped comb bar until the J-shaped end hooks onto the outer teeth 11 of the comb plate 1. When inserting the last J-shaped comb bar, a positioning mechanism is used to fix it at the intersection with the comb plate teeth, thus forming a compression fixation between the J-shaped comb bars and between the J-shaped comb bars and the connecting rod, while also achieving relative fixation between all J-shaped comb bars and the comb plate. The combing device is then pushed along the steel strand axis to the end of the steel strand bundle, allowing the combing device to guide the overall installation of the anchoring device. After installation, the J-shaped comb bars and comb plate are removed, completing the combing installation process of the steel strand bundle anchoring system. The combing device of this technical solution can improve the work efficiency. For anchors with different hole arrangements, modular assembly is adopted. The applicability of the combing device can be improved by increasing or decreasing the number of J-type comb bars. The positioning mechanism can also achieve relative fixation of the combing plate and J-type comb bars, thereby improving the stability of the combing device.

[0008] A further technical solution is that the positioning mechanism includes a first positioning ring and a second positioning ring respectively sleeved on the comb teeth and the J-shaped comb bar, a rotating shaft arranged at one end adjacent to the first positioning ring and the second positioning ring, and fasteners; the fasteners are used to fix the first positioning ring and the comb teeth. In this technical solution, the first positioning ring and the second positioning ring achieve relative rotation through the rotating shaft, which can be applied to combing devices with different angles of the horizontal and vertical distribution directions of the anchor plate through holes, further improving the applicability of the combing device; during use, according to the insertion position of the last J-shaped comb bar, it is sleeved on the outer ring of the comb teeth through the first positioning ring, and then the J-shaped comb bar is inserted into the second positioning ring. The position of the positioning mechanism is adjusted so that the adjacent J-shaped comb bars clamp the corresponding steel strands, and then the position of the positioning mechanism on the comb teeth is fixed by the fasteners.

[0009] A further technical solution involves a fastener comprising a threaded rod and a threaded hole penetrating the first positioning ring. The threaded rod passes through the threaded hole via a threaded engagement and presses against the comb teeth. This technical solution achieves a fastening effect by using threaded components, which facilitates the adjustment and fixation of the positioning mechanism, thereby improving construction efficiency.

[0010] A further technical solution is that the comb plate also includes a handle connected to the other side of the connecting rod.

[0011] A further technical solution involves the comb teeth being distributed in a stepped manner. This solution uses a stepped comb tooth distribution; during installation, the comb teeth are inserted sequentially into the corresponding steel strand rows from longest to shortest, achieving row-by-row combing of the steel strands.

[0012] A further technical solution is to have the end of the comb teeth furthest from the connecting rod be an arc surface. This arc surface facilitates the passage of the steel strand bundle.

[0013] A further technical solution involves using either a plastic combing plate or a nylon combing plate. This technical solution utilizes readily available materials, has a simple manufacturing process, and is cost-effective.

[0014] The beneficial effects of this utility model are:

[0015] This utility model provides a combing device for a multi-hole steel strand group anchor system. By using J-shaped combs inserted one by one in conjunction with a combing plate, it combs each row of steel strands, which can improve the work efficiency. It adopts modular assembly, and the applicability of the combing device can be improved by increasing or decreasing the number of J-shaped combs for anchors with different hole arrangements. Furthermore, by installing positioning mechanisms at the two intersections of the last J-shaped comb and the combing plate, all steel strands between the J-shaped combs and between the J-shaped combs and the connecting rods are squeezed and fixed, while all J-shaped combs and the combing plate are relatively fixed, thereby improving the stability of the combing device. Attached Figure Description

[0016] Figure 1 See: A schematic diagram of the combing device described in this utility model.

[0017] Figure 2 Here is a schematic diagram of the J-shaped comb bar described in this utility model.

[0018] Figure 3 Here is a schematic diagram of the positioning mechanism described in this utility model.

[0019] Figure 4 See: A schematic diagram of the comb plate and the steel strand bundle described in this utility model.

[0020] Figure 5The diagram shows the combination of the comb plate, some J-shaped comb bars, and steel strand bundle described in this utility model.

[0021] In the picture:

[0022] 1. Comb plate; 11. Comb teeth; 12. Connecting rod; 13. Handle; 2. J-shaped comb bar; 3. Positioning mechanism; 31. First positioning ring; 32. Second positioning ring; 33. Rotating shaft; 34. Threaded rod; 35. Handle; 4. Anchor plate; 41. Steel strand. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1 to 5 The present invention will be described in detail below with specific embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] like Figures 1 to 5 As shown, this embodiment provides a combing device for a multi-hole steel strand anchor system, used to comb the steel strands 41 through the corresponding through holes of the anchor plate 4. The combing device includes a combing plate 1, J-shaped comb bars 2, and two positioning mechanisms 3. The combing plate 1 includes a connecting rod 12 and comb teeth 11 spaced apart on one side of the connecting rod 12. The J-shaped comb bars 2 and the comb teeth 11 are arranged crosswise. The J-shaped end of the J-shaped comb bar 2 is used to hook the comb teeth on the outside of the combing plate 1. The extension direction of the comb teeth 11 is adapted to one of the transverse or longitudinal distribution of the through holes in the anchor plate, and the extension direction of the connecting rod 12 and the J-shaped comb bar 2 is adapted to the other of the transverse or longitudinal distribution of the through holes in the anchor plate. The positioning mechanism 3 is used to fix the intersection of the J-shaped comb bar 2 and the comb teeth 11 at the farthest end of the connecting rod 12.

[0025] Specifically, the extension direction of the comb teeth 11 is adapted to the transverse direction of the through holes in the anchor plate 4, and the extension direction of the connecting rod 12 and the J-shaped comb bar 2 is adapted to the longitudinal direction of the through holes in the anchor plate 4. The number of comb teeth 11 and the number of J-shaped comb bars 2 are determined by the number of transverse and longitudinal rows of through holes in the anchor plate 4. The width of the comb teeth 11 is determined by the spacing between two adjacent rows of transverse through holes, and the width of the J-shaped comb bar 2 is determined by the spacing between two adjacent rows of longitudinal through holes. These parameters are not specifically limited here. Figure 1 As shown, this embodiment takes a 12-hole anchor plate 4 as an example. Its through holes are distributed in four rows horizontally and four rows vertically. That is, the combing device includes a combing plate 1 with five comb teeth 11 and four J-shaped comb bars 2; Figure 3The positioning mechanism 3 shown specifically includes a first positioning ring 31 and a second positioning ring 32 respectively sleeved on the comb teeth 11 and the J-shaped comb bar 2, a rotating shaft 33 arranged at one adjacent end of the first positioning ring 31 and the second positioning ring 32, and a fastener. One end of the rotating shaft 33 is rotatably inserted into the first positioning ring 31 and the other end is inserted into the second positioning ring 32. Both ends are prevented from disengaging from the first positioning ring 31 and the second positioning ring 32 by limiting structures. That is, the first positioning ring 31 and the second positioning ring 32 can be rotated relative to each other through the rotating shaft 33. The fastener includes a threaded rod 34 and a threaded hole penetrating the first positioning ring 31. One end of the threaded rod 31 passes through the threaded hole through the threaded engagement and presses against the comb teeth 11. For the convenience of rotating the threaded rod 34, a handle 35 can be added to its other end.

[0026] During the construction process of this implementation method, if Figure 4 As shown, the rack 11 of the comb plate 1 is passed through the corresponding horizontal steel strand rows to comb each row of horizontal steel strands; as shown Figure 5 As shown, in the longitudinal direction, J-shaped comb bars 2 are inserted one by one, starting from the corresponding position near the connecting rod 12. Insertion begins from the straight end of the J-shaped comb bar until the J-shaped end hooks onto the outer teeth 11 of the comb plate 1. Based on the insertion position of the last J-shaped comb bar 2, two points where the two teeth 11 intersect with the last J-shaped comb bar 2 are selected. Two positioning mechanisms 3 are respectively fitted onto the outer rings of the two teeth 11 through the first positioning ring 31. Then, the last J-shaped comb bar 2 is inserted into the second positioning ring 31. The position of the positioning mechanism 3 is adjusted until the adjacent J-shaped comb bars 2 clamp the corresponding steel... The stranded wires are then tightened by screwing the threaded rod 34 into the threaded hole of the first positioning ring 31, thereby pressing the comb teeth 11 together. This causes all the steel strands 41 between the four J-shaped comb bars 2 and between the J-shaped comb bars 2 and the connecting rod 12 to be compressed and fixed, while also achieving relative fixation between all the J-shaped comb bars 2 and the comb plate 1. The combing device is then pushed along the axis of the steel strands 41 to the end of the steel strand bundle, and the combing device can be used to guide the overall installation of the anchoring device into the hole. After installation, the J-shaped comb bars 2 and the comb plate 1 are pulled out, thus completing the combing installation process of the steel strand bundle anchoring system. The combing device of this embodiment can improve work efficiency. For anchors with different hole arrangements, modular assembly is adopted. The applicability of the combing device can be improved by increasing or decreasing the number of J-type comb bars 2. The positioning mechanism can also realize the relative fixation of the combing plate 1 and the J-type comb bars 2, thereby improving the stability of the combing device. The first positioning ring 31 and the second positioning ring 32 can rotate relative to each other through the rotating shaft 33, which can be used for combing work with different horizontal and vertical distribution angles of the through holes of the anchor plate 4, further improving the applicability of the combing device. The use of threaded parts to achieve a fastening effect can facilitate the adjustment and fixation of the position of the positioning mechanism 3, thereby improving construction efficiency.

[0027] The above embodiments exemplarily illustrate the specific number of comb teeth 11, J-shaped racks 2, and positioning mechanisms 3 in the comb plate 1. In other embodiments or practical applications, the number can be determined according to the distribution parameters of the horizontal and vertical through holes in the anchor plate 4 under specific working conditions. In some practical working conditions where the number of through holes in the anchor plate 4 is large, multiple positioning mechanisms 3 can be used to improve the stability of the comb plate 1 and the J-shaped racks 2. In addition, positioning mechanisms 3 can be added at other intersections of the J-shaped racks 2 and the comb teeth 11 to further improve the stability of the combing device.

[0028] The above embodiments exemplarily illustrate the specific structure of the positioning mechanism and its fasteners. In other embodiments or practical applications, the fasteners can be replaced by other methods. For example, an elastic element that is interference-fitted with the comb bar 11 can be added to the inner wall of the first positioning ring 31. The positioning mechanism can also be a snap-fit ​​structure with the comb teeth 11 and the J-shaped rack 2 respectively at both ends.

[0029] In another embodiment, based on the above embodiment, the comb plate 1 also includes a handle 13 connected to the other side of the connecting rod 12, which facilitates holding the combing device during construction.

[0030] In another embodiment, based on the above embodiment, the length of the comb teeth 11 is distributed in a stepped manner. By using comb teeth 11 with a stepped distribution, during the installation process, the comb teeth 11 are inserted into the corresponding steel strand rows in order from long to short, so as to realize the sequential combing of the steel strands 41.

[0031] In another embodiment, based on the above embodiment, the end of the comb tooth 11 away from the connecting rod 12 is an arc surface, which facilitates the passage of the steel strand bundle.

[0032] In another embodiment, based on the above embodiment, the combing plate 1 is a plastic combing plate or a nylon combing plate. The above materials are easy to obtain, have simple production processes, and are low in cost.

[0033] This utility model provides a combing device for a multi-hole steel strand group anchor system. By using J-shaped comb bars 2 inserted one by one in cooperation with the combing plate 1, each row of steel strands is combed, which can improve the work efficiency. The modular assembly allows for the increase or decrease of the number of J-shaped comb bars 2 to improve the applicability of the combing device for anchors 4 with different hole arrangements. Furthermore, by installing positioning mechanisms 3 at the two intersections of the last J-shaped comb bar 2 and the comb teeth 11 of the combing plate 1, all steel strands 41 between the J-shaped comb bars 2 and between the J-shaped comb bars 2 and the connecting rod 12 are compressed and fixed, while all J-shaped comb bars 2 and the combing plate 1 are relatively fixed, thereby improving the stability of the combing device.

Claims

1. A multi-strand wire group anchor system combing device for combing steel strands through corresponding through holes of an anchor plate, characterized in that, It includes a comb plate (1), a J-shaped comb bar (2) and at least two positioning mechanisms (3); the comb plate (1) includes a connecting rod (12) and comb teeth (11) spaced apart on one side of the connecting rod (12); The J-shaped comb bar (2) and the comb teeth (11) are arranged in a cross pattern; wherein, the J-shaped end of the J-shaped comb bar (2) is used to hook the comb teeth on the outside of the comb plate (1); the extension direction of the comb teeth (11) is adapted to one of the transverse or longitudinal distribution of the through holes of the anchor plate, and the extension direction of the connecting rod (12) and the J-shaped comb bar (2) is adapted to the other of the transverse or longitudinal distribution of the through holes of the anchor plate. The positioning mechanism (3) is used to fix the intersection of the J-shaped comb bar (2) and the comb teeth (11) at the farthest end of the distance connecting rod (12).

2. A strand comb device for a multi-strand wire group anchor system according to claim 1, characterized in that The positioning mechanism (3) includes a first positioning ring (31) and a second positioning ring (32) respectively fitted onto the comb teeth (11) and the J-shaped comb bar (2), a rotating shaft (33) arranged at one end adjacent to the first positioning ring (31) and the second positioning ring (32), and a fastener; the fastener is used to fix the first positioning ring (31) and the comb teeth (11).

3. A strand comb device for a multi-strand wire group anchor system according to claim 2, wherein, The fastener includes a threaded rod and a threaded hole that passes through the first positioning ring (31). The threaded rod passes through the threaded hole through the threaded engagement and presses against the comb teeth (11).

4. A strand comb device for a multi-strand wire group anchor system as defined in claim 1, wherein, The comb plate (1) also includes a handle (13) connected to the other side of the connecting rod (12).

5. A strand comb device for a multi-strand wire group anchor system as defined in claim 1, wherein, The lengths of the comb teeth (11) are distributed in a stepped manner.

6. A strand comb device for a multi-strand wire group anchor system as defined in claim 1, wherein, The end of the comb teeth (11) away from the connecting rod (12) is an arc surface.

7. A strand comb device for a multi-strand wire group anchor system as defined in claim 1, wherein, The comb plate (1) is either a plastic comb plate or a nylon comb plate.

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