Bending-resistant protector for bridge cable

Abstract

The utility model relates to the technical field of cable laying, in particular to a bridge cable anti-bending protector, which comprises an anti-bending pipe, a plurality of anti-bending pipe connecting pieces and a bearing seat, the anti-bending pipe is arranged below the bearing seat through the anti-bending pipe connecting piece; the anti-bending pipe connecting piece comprises an upper connecting block and a lower connecting block which can be spliced into a whole; a fixing cavity of the anti-bending pipe is formed between the upper connecting block and the lower connecting block which are spliced. Through the design of the anti-bending pipe, the cable can be effectively protected when passing through structures such as bridges and elevated roads, excessive bending caused by external factors (such as vibration and temperature difference) is reduced, and thus the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying, in particular to an anti-bending protector for bridge cables. Background Art

[0002] In power systems and communication networks, bridge cables are a common carrier for power or signal transmission and are widely used in various bridges, viaducts and other building structures. However, due to deformation, vibration and temperature differences in bridges, viaducts and other building structures, bridge cables are easily affected by external forces during operation, resulting in bending.

[0003] Excessive bending of the cable will have a serious impact on its normal operation. First, excessive bending will cause the conductor, insulation layer and other components inside the cable to be squeezed and stretched, thereby destroying the electrical and mechanical properties of the cable and reducing the service life of the cable. Secondly, stress concentration is prone to occur at the bend of the cable, aggravating the fatigue damage of the cable and even causing serious accidents such as cable breakage. Utility Model Content

[0004] The utility model aims at the technical problems existing in the prior art and provides a bridge cable anti-bending protector to solve the problem that the cable is prone to excessive bending and thus easily destroys the electrical and mechanical properties of the cable.

[0005] The utility model solves the above technical problems with the following technical solutions: A cable anti-bending protector for a bridge, comprising an anti-bending tube for passing cables, a plurality of anti-bending tube connectors, and a bearing seat; the anti-bending tube is arranged below the bearing seat through the anti-bending tube connectors;

[0006] The anti-bending pipe connector comprises an upper connecting block and a lower connecting block which can be spliced ​​together; a fixing cavity for the anti-bending pipe is formed between the spliced ​​upper connecting block and the lower connecting block.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, it also includes a fixing piece for locking the upper connecting block and the lower connecting block.

[0009] Furthermore, the fixing member includes a ring body and a locking flap arranged in the inner cavity of the ring body; the locking flap separates the inner cavity of the ring body into a positioning cavity and a movable cavity which communicate with each other;

[0010] The joints of the upper connecting block and the lower connecting block are formed with positioning blocks that can rotate relative to the movable cavity, and the positioning blocks are formed with locking blocks that can enter and exit the positioning cavity outwardly;

[0011] After the locking block passes through the positioning cavity, the ring body rotates relative to the upper connecting block and the lower connecting block to lock the locking block and the locking petal.

[0012] Furthermore, the locking flaps are evenly arranged in two groups around the inner cavity.

[0013] Furthermore, the radial width of the locking petal relative to the inner cavity of the ring body increases from one end to the other end.

[0014] Furthermore, it also includes a guide rail arranged below the bearing seat, and a positioning slide groove adapted to the guide rail is formed on the upper connecting block.

[0015] Furthermore, a connecting plate is installed on the guide rail by bolts, and a lifting ring for installing a lifting rope is provided on the upper surface of the connecting plate.

[0016] Furthermore, positioning protrusions are formed on both sides of the connecting plate, and positioning grooves adapted to the positioning protrusions are also formed on the upper connecting block.

[0017] Moreover, the anti-bending protector for bridge cables provided by the utility model has at least the following beneficial effects compared with the prior art:

[0018] 1. Through the design of anti-bending tubes, cables can be effectively protected when crossing structures such as bridges and elevated roads, reducing excessive bending caused by external factors (such as vibration, temperature differences, etc.), thereby extending the service life of the cable.

[0019] 2. The anti-bending pipe connector is composed of an upper connecting block and a lower connecting block that can be spliced, making the installation and disassembly process simple and quick. With the design of the fixing parts, the anti-bending pipe can be easily fixed under the bearing seat, which improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of the fixing member of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the connection plate of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the anti-bending pipe connector of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Anti-bending pipe; 2. Anti-bending pipe connector; 2.1. Upper connecting block; 2.2. Lower connecting block; 2.3. Fixed cavity; 2.4. Positioning block; 2.5. Locking block; 2.6. Positioning slide groove; 2.7. Positioning groove; 3. Bearing seat; 4. Fixing piece; 4.1. Ring body; 4.2. Locking petal; 4.3. Positioning cavity; 4.4. Movable cavity; 5. Guide rail; 6. Connecting plate; 6.1. Lifting ring; 6.2. Positioning protrusion. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the anti-bending protector for bridge cables of the present utility model comprises an anti-bending pipe 1 for passing cables, a plurality of anti-bending pipe connectors 2, and a bearing seat 3; the anti-bending pipe 1 is arranged below the bearing seat 3 through the anti-bending pipe connectors 2;

[0029] The anti-bending pipe connector 2 comprises an upper connecting block 2.1 and a lower connecting block 2.2 which can be spliced ​​together; a fixing cavity 2.3 for the anti-bending pipe 1 is formed between the spliced ​​upper connecting block 2.1 and the lower connecting block 2.2.

[0030] As an embodiment, it also includes a fixing member 4 for locking the upper connecting block 2.1 and the lower connecting block 2.2.

[0031] The anti-bending pipe 1 is used for threading cables. It is connected to the supporting seat 3 through the anti-bending pipe connector 2 and is fixed under the supporting seat 3. The anti-bending pipe connector 2 consists of an upper connecting block 2.1 and a lower connecting block 2.2 that can be spliced. After splicing, a fixed cavity 2.3 is formed between them for fixing the anti-bending pipe 1.

[0032] As an embodiment, the fixing member 4 includes a ring body 4.1 and a locking flap 4.2 disposed in the inner cavity of the ring body 4.1; the locking flap 4.2 separates the inner cavity of the ring body 4.1 into a positioning cavity 4.3 and a movable cavity 4.4 which communicate with each other;

[0033] The joints of the upper connecting block 2.1 and the lower connecting block 2.2 are both formed with positioning blocks 2.4 that can rotate relative to the movable cavity 4.4, and the positioning blocks 2.4 are formed with locking blocks 2.5 that can enter and exit the positioning cavity 4.3.

[0034] In order to facilitate the quick docking of the upper connecting block 2.1 and the lower connecting block 2.2, the upper connecting block 2.1 and the lower connecting block 2.2 can be respectively provided with matching positioning pins and pin holes for quick docking.

[0035] When the locking block 2.5 passes through the positioning cavity 4.3, the ring body 4.1 rotates relative to the upper connecting block 2.1 and the lower connecting block 2.2 to lock the locking block 2.5 and the locking flap 4.2.

[0036] When the anti-bending pipe 1 needs to be installed or disassembled, the upper connecting block 2.1 and the lower connecting block 2.2 are firstly spliced ​​together so that the positioning block 2.4 and the locking block 2.5 are located in the active cavity 4.4.

[0037] Then, the ring body 4.1 of the fixing member 4 is sleeved onto the spliced ​​upper connecting block 2.1 and the lower connecting block 2.2, so that the locking block 2.5 can pass through the positioning cavity 4.3.

[0038] Then, the ring body 4.1 is rotated to make the locking block 2.5 meet and lock the locking flap 4.2. Since the radial width of the locking flap 4.2 is designed to increase gradually, when the ring body 4.1 is rotated, the locking flap 4.2 will gradually press the locking block 2.5 inwards to achieve a stable locking effect.

[0039] When the locking block 2.5 is locked with the locking flap 4.2, the connection between the upper connecting block 2.1 and the lower connecting block 2.2 becomes stable, and the anti-bending pipe 1 is also firmly fixed under the bearing seat 3.

[0040] Specifically, the locking flaps 4.2 are evenly arranged in two groups around the inner cavity. The positioning blocks 2.4 and the locking blocks 2.5 of the upper connecting block 2.1 and the lower connecting block 2.2 can meet and lock with the locking flaps 4.2.

[0041] Specifically, the radial width of the locking flap 4.2 relative to the inner cavity of the ring body 4.1 increases from one end to the other. The narrower end of the locking flap 4.2 first contacts the locking block 2.5, and then as the ring body 4.1 rotates, the wider end of the locking flap 4.2 gradually presses the locking block 2.5 inward to achieve a stable locking effect. This design not only ensures the reliability of locking, but also makes the locking and unlocking process smoother.

[0042] As an implementation method, Figure 4 As shown, it also includes a guide rail 5 arranged below the bearing seat 3, and a positioning slide groove 2.6 adapted to the guide rail 5 is formed on the upper connecting block 2.1.

[0043] Specifically, a connecting plate 6 is installed on the guide rail 5 by means of bolts, and a lifting ring 6.1 for installing a lifting rope is provided on the upper surface of the connecting plate 6.

[0044] Specifically, positioning protrusions 6.2 are formed on both sides of the connecting plate 6, and positioning grooves 2.7 adapted to the positioning protrusions 6.2 are also formed on the upper connecting block 2.1.

[0045] The guide rail 5 is installed under the bearing seat 3 to ensure the flatness and stability of the guide rail 5. Then, the upper connecting block 2.1 of the anti-bending pipe connector 2 is matched with the guide rail 5 and slid to a predetermined position on the guide rail 5 through the positioning slide groove 2.6. Next, the connecting plate 6 is installed on the guide rail 5 by bolts, and the positioning protrusion 6.2 on the connecting plate 6 is ensured to be matched with the positioning groove 2.7 on the upper connecting block 2.1 to achieve a stable connection.

[0046] The lifting ring 6.1 can be connected to the bearing seat 3 by a lifting rope, and the anti-bending pipe connector 2 and the anti-bending pipe 1 can be hoisted as a whole to a predetermined position using a lifting device.

[0047] In addition, multiple sets of screw holes can be opened on the guide rail 5 to adjust the position of the anti-bending pipe connector 2. When the position of the anti-bending pipe connector 2 needs to be adjusted, first loosen the bolts that originally fixed the connecting plate 6. Then, according to actual needs, select the screw holes at appropriate positions on the guide rail 5, and screw the bolts on the connecting plate 6 into the screw holes, thereby changing the relative position of the connecting plate 6 and the guide rail 5.

[0048] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0049] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0050] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A bridge cable anti-bending protector, characterized in that: It comprises an anti-bending pipe (1) for passing cables, a plurality of anti-bending pipe connectors (2), and a bearing seat (3); the anti-bending pipe (1) is arranged below the bearing seat (3) via the anti-bending pipe connectors (2); The anti-bending pipe connector (2) comprises an upper connecting block (2.1) and a lower connecting block (2.2) which can be spliced ​​together; a fixing cavity (2.3) for the anti-bending pipe (1) is formed between the spliced ​​upper connecting block (2.1) and the lower connecting block (2.2).

2. The anti-bending protector for bridge cables according to claim 1, characterized in that: It also includes a fixing member (4) for locking the upper connecting block (2.1) and the lower connecting block (2.2).

3. The anti-bending protector for bridge cables according to claim 2, characterized in that: The fixing member (4) comprises a ring body (4.1) and a locking flap (4.2) arranged in the inner cavity of the ring body (4.1); the locking flap (4.2) separates the inner cavity of the ring body (4.1) into a positioning cavity (4.3) and a movable cavity (4.4) which communicate with each other; A positioning block (2.4) that can rotate relative to the movable cavity (4.4) is formed at the joint of the upper connecting block (2.1) and the lower connecting block (2.2); and a locking block (2.5) that can enter and exit the positioning cavity (4.3) is formed outwardly of the positioning block (2.4); When the locking block (2.5) passes through the positioning cavity (4.3), the ring body (4.1) rotates relative to the upper connecting block (2.1) and the lower connecting block (2.2) so that the locking block (2.5) and the locking flap (4.2) are locked.

4. The anti-bending protector for bridge cables according to claim 3, characterized in that: The locking flaps (4.2) are evenly arranged in two groups around the inner cavity.

5. The anti-bending protector for bridge cables according to claim 3, characterized in that: The locking flap (4.2) increases gradually from one end to the other end relative to the radial width of the inner cavity of the ring body (4.1).

6. The anti-bending protector for bridge cables according to claim 1, characterized in that: It also includes a guide rail (5) arranged below the bearing seat (3), and a positioning slide groove (2.6) adapted to the guide rail (5) is formed on the upper connecting block (2.1).

7. The anti-bending protector for bridge cables according to claim 6, characterized in that: A connecting plate (6) is mounted on the guide rail (5) by means of bolts, and a lifting ring (6.1) for mounting a lifting rope is provided on the upper surface of the connecting plate (6).

8. The anti-bending protector for bridge cables according to claim 7, characterized in that: Positioning protrusions (6.2) are formed on both sides of the connection plate (6), and positioning grooves (2.7) adapted to the positioning protrusions (6.2) are also formed on the upper connection block (2.1).

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