Anti-loose cable anchor

Abstract

The utility model discloses a kind of anti-loose cable-stayed cable anchorage devices, including anchor disc, clamping piece, baffle, separable jacker, screw rod and guide rod, clamping piece is installed in anchor disc, screw rod and guide rod are vertically arranged in the same side of anchor disc, the outer end of screw rod is equipped with nut, baffle is slidably installed on screw rod and guide rod, separable jacker is threadedly installed on baffle, steel bar passes through anchor disc, clamping piece and separable jacker, clamping piece clamps steel bar, separable jacker is tightly closed to the outer end of clamping piece. When the anchorage device is tensioned cable-stayed cable, it can be tightly closed to clamping piece by baffle and separable jacker thereon, ensure the position stability of clamping piece and the stability of clamping piece to cable-stayed cable. In the installation and use of the anchorage device, separable jacker can be half separated, not limited by the steel bar that is well set, convenient to replace and install, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of anchorage technology, and in particular to an anti-loosening inclined cable anchorage. Background Technology

[0002] To tighten the stay cables of a bridge, stay cable anchors are required, making them indispensable equipment for securing the ends of the stay cables. Bridges may experience abnormal vibrations, also known as resonance, which is particularly pronounced in suspension bridges. During this period, stay cable anchors play a crucial role in securing and damping vibrations. Stay cable anchors mainly consist of an anchor plate and clamps. The clamps are located within the conical holes of the anchor plate to clamp the cables (reinforcing bars or steel ropes). However, during bridge vibrations, the alternating tension and slack of the cables can cause the clamps to move back and forth within the conical holes, thus losing their anchoring and tightening function.

[0003] In the prior art, Chinese utility model patent CN218969767U, entitled "Anti-Loosening Cable Anchor," describes an anchor that uses a sealing mechanism to keep the clamping plates on the anchor plate pressed against the conical hole, thereby ensuring anchor tension. The sealing mechanism uses a clamping head to press the clamping plates against the anchor plate, and the cable needs to pass through the clamping head. Therefore, each installation requires first installing the clamping head and then threading the cable through it. If the clamping head needs to be replaced or if it was forgotten to install it beforehand, the anchor must be disassembled and reassembled, and the clamping head and cable must be re-threaded, which is inconvenient in use. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-loosening cable anchor to solve the problem that existing cable anchors require replacement of the clamping head or forgetting to install the clamping head in advance, which means that the anchor must be disassembled and reassembled, the clamping head installed and the cable threaded again, which is inconvenient to use.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A stay cable anchor for preventing loosening includes an anchor plate, a clamp, a retaining plate, a separable tightening device, a screw, and a guide rod. The clamp is installed inside the anchor plate. The screw and the guide rod are both vertically arranged on the same side of the anchor plate. A nut is threaded onto the outer end of the screw. The retaining plate is slidably installed on the screw and the guide rod. The separable tightening device is threaded onto the retaining plate. A reinforcing bar passes through the anchor plate, the clamp, and the separable tightening device. The clamp clamps the reinforcing bar, and the separable tightening device abuts against the outer end of the clamp.

[0007] A further technical solution is as follows: the separable clamping device includes a sleeve, a semi-circular hollow screw, positioning teeth, and a fixing pin. The two semi-circular hollow screws are arranged opposite to each other. At least two positioning teeth are provided on two cross-sections of one of the semi-circular hollow screws, and tooth grooves that are adapted to the positioning teeth are provided on two cross-sections of the other semi-circular hollow screw. The sleeve is slidably installed on the outer ends of the two semi-circular hollow screws, and the fixing pin is installed in the pin holes of the sleeve and the semi-circular hollow screws.

[0008] A further technical solution is that the head of the semi-circular hollow screw is polygonal, and the sleeve is provided with a polygonal groove that matches the head.

[0009] A further technical solution is: the casing includes two semi-circular shells, hooks and hook plates adapted to the hooks, the two hooks and the two hook plates are respectively disposed on the outer surfaces of the two semi-circular shells, and the two semi-circular shells are pressed together by the hooks and the hook plates.

[0010] A further technical solution is that the tail of the fixing pin is provided with an anti-detachment wire.

[0011] A further technical solution is that both the head of the semi-circular hollow screw and the polygonal groove are conical.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] This utility model proposes an anti-loosening anchor for stay cables. When tightening the stay cables, the anchor uses a baffle and its detachable clamping device to tighten the clamping plates, ensuring the stability of the clamping plates' position and the stability of the clamping plates' gripping of the stay cables. During the installation and use of this anchor, the detachable clamping device can be separated in half, not restricted by the already inserted reinforcing bars, making it convenient for replacement and installation, and easy to use. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an anti-loosening inclined cable anchor of this utility model.

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the detachable clamping device.

[0016] Figure 3 This utility model Figure 1 A schematic diagram of the structure of a hollow semi-circular screw.

[0017] Figure 4 This utility model Figure 3 A structural diagram from a three-dimensional perspective.

[0018] Reference numerals: 1. Anchor plate; 2. Clamping plate; 3. Baffle plate; 4. Separable clamping device; 5. Screw; 6. Guide rod; 7. Nut; 8. Reinforcing bar; 9. Sleeve; 10. Semi-circular hollow screw; 11. Positioning tooth; 12. Fixing pin; 13. Semi-circular shell; 14. Hook; 15. Hook plate; 16. Anti-detachment wire. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0025] This implementation example Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an anti-loosening cable anchor includes an anchor plate 1, a clamping plate 2, a retaining plate 3, a separable tightening device 4, a screw 5, and a guide rod 6. The clamping plate 2 is installed inside the anchor plate 1. The screw 5 and the guide rod 6 are both vertically arranged on the same side of the anchor plate 1. A nut 7 is threaded onto the outer end of the screw 5. The retaining plate 3 is slidably installed on the screw 5 and the guide rod 6. The separable tightening device 4 is threaded onto the retaining plate 3. A reinforcing bar 8 passes through the anchor plate 1, the clamping plate 2, and the separable tightening device 4. The clamping plate 2 clamps the reinforcing bar 8, and the separable tightening device 4 abuts against the outer end of the clamping plate 2.

[0026] The working process of this utility model is as follows: After the reinforcing bar 7 (stay cable) is tensioned by the anchor, the wedge 2 is clamped by the separable tightening device 4. Even if the reinforcing bar 7 experiences alternating periods of tension and relaxation due to vibration, the wedge 2 will not move along with it, ensuring the stability of the wedge 2's position and the stability of the wedge 2's clamping of the reinforcing bar 7. During the installation and use of this anchor, the separable tightening device 4 can be separated in half, not limited by the pre-installed reinforcing bar 7, making it convenient for replacement and installation, and easy to use. Example

[0027] Based on the above embodiments, this embodiment, for example Figure 2 As shown, the separable clamping device 4 includes a housing 9, a semi-circular hollow screw 10, positioning teeth 11, and a fixing pin 12. The two semi-circular hollow screws 10 are arranged opposite each other. At least two positioning teeth 11 are provided on two cross-sections of one semi-circular hollow screw 10, and tooth grooves that are adapted to the positioning teeth 11 are provided on two cross-sections of the other semi-circular hollow screw 10. The housing 9 is slidably installed on the outer ends of the two semi-circular hollow screws 10, and the fixing pin 12 is installed in the pin holes of the housing 9 and the semi-circular hollow screws 10.

[0028] Two semi-circular hollow screws 10 engage to form a usable hollow threaded rod. During engagement, the positioning teeth 11 engage with the tooth grooves, serving two purposes: positioning and preventing axial relative movement between the two semi-circular hollow screws 10. Then, the sleeve 9 is fitted onto the head of the hollow threaded rod to prevent radial relative movement between the two semi-circular hollow screws 10. Furthermore, the fixing pin 12 secures the two semi-circular hollow screws 10 and the sleeve 9 to prevent loosening.

[0029] Preferably, the head of the semi-circular hollow screw 10 is polygonal, and the sleeve 9 is provided with a polygonal groove that matches the head.

[0030] The hollow threaded rod formed by the sleeve 9 and the two semi-circular hollow screws 10 has a polygonal mating structure, which ensures that the sleeve 9 and the hollow threaded rod will not slide relative to each other, and the hollow threaded rod can be rotated.

[0031] Preferably, the housing 9 includes two semi-circular shells 13, hooks 14, and hook plates 15 adapted to the hooks 14. The two hooks 14 and the two hook plates 15 are respectively disposed on the outer surfaces of the two semi-circular shells 13, and the two semi-circular shells 13 are pressed together by the hooks 14 and the hook plates 15.

[0032] The two sets of hooks 14 and hook plates 15 interlock with each other, which can lock the two semi-circular shells 13, completing the assembly between the casing 9 and the two semi-circular hollow screws 10.

[0033] Preferably, the tail of the fixing pin 12 is provided with an anti-detachment wire 16.

[0034] Preferably, the head and polygonal groove of the semi-circular hollow screw 10 are both conical.

[0035] The tapered semi-circular hollow screw 10 has a head and a polygonal groove to facilitate docking and installation between the two.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slack cable anchor, comprising: The device includes an anchor plate (1), a clamping plate (2), a baffle plate (3), a separable clamping device (4), a screw (5), and a guide rod (6). The clamping plate (2) is installed inside the anchor plate (1). The screw (5) and the guide rod (6) are both vertically arranged on the same side of the anchor plate (1). The outer end of the screw (5) is threaded with a nut (7). The baffle plate (3) is slidably installed on the screw (5) and the guide rod (6). The separable clamping device (4) is threaded on the baffle plate (3). The reinforcing bar (8) passes through the anchor plate (1), the clamping plate (2), and the separable clamping device (4). The clamping plate (2) clamps the reinforcing bar (8), and the separable clamping device (4) abuts against the outer end of the clamping plate (2).

2. The slack cable anchor of claim 1, wherein: The separable clamping device (4) includes a housing (9), a semi-circular hollow screw (10), positioning teeth (11), and a fixing pin (12). The two semi-circular hollow screws (10) are arranged opposite to each other. At least two positioning teeth (11) are provided on two cut surfaces of one of the semi-circular hollow screws (10), and tooth grooves that are adapted to the positioning teeth (11) are provided on two cut surfaces of the other semi-circular hollow screw (10). The housing (9) is slidably installed on the outer ends of the two semi-circular hollow screws (10), and the fixing pin (12) is installed in the pin holes of the housing (9) and the semi-circular hollow screws (10).

3. The slack cable anchor of claim 2, wherein: The head of the semi-circular hollow screw (10) is polygonal, and the casing (9) is provided with a polygonal groove that matches the head.

4. The slack cable anchor of claim 2, wherein: The casing (9) includes two semi-circular shells (13), hooks (14) and hook plates (15) adapted to the hooks (14). The two hooks (14) and the two hook plates (15) are respectively disposed on the outer surfaces of the two semi-circular shells (13), and the two semi-circular shells (13) are pressed together by the hooks (14) and the hook plates (15).

5. The slack cable anchor of claim 2 wherein: The tail of the fixing pin (12) is provided with an anti-detachment wire (16).

6. The slack cable anchor of claim 3 wherein: The head of the semi-circular hollow screw (10) and the polygonal groove are both conical.

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