Cable fixing and protecting device for water conservancy and hydropower engineering

Abstract

The utility model relates to the technical field of cable fixing and protection, in particular to a cable fixing and protecting device for water conservancy and hydropower engineering, which comprises a protective cover body, the protective cover body is composed of an upper cover body and a lower cover body which are oppositely arranged up and down, and at least two groups of fixing assemblies are arranged in the protective cover body. The fixing assembly is used for fixing a cable penetrating through the interior of the protective cover body, the fixing assembly comprises a bearing seat connected to the inner wall of the bottom of the lower cover body, clamping plates connected to the two ends of the upper portion of the bearing seat and a wedge-shaped block used for extruding the clamping plates, and a lifting frame is arranged above the wedge-shaped block; the upper end of the lifting frame is rotationally connected with an operation rod. According to the utility model, after the cable is clamped and fixed through the clamping plate, the connection stability of the cable connection part is improved, the separation and fracture of the cable connection part caused by external force and the like are reduced, and meanwhile, the protective cover body covers the outer side of the cable connection part, so that the corrosion of rainwater and the like to the cable connection part can be avoided, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to a cable protection device, in particular to a cable fixing and protecting device for water conservancy and hydropower projects, belonging to the technical field of cable fixing and protection. Background Art

[0002] In water conservancy projects, the fixing and protection of cables are very important because cables are usually used to transmit electricity, signals, data, etc., and they may be exposed to various environmental conditions, such as water, humidity, temperature changes, mechanical impacts, etc. If the cables are not properly fixed and protected, there may be risks of cable damage and faults, affecting the normal operation and safety of water conservancy projects. Especially at the connection of two sections of cables, it is easily affected by external mechanical stresses, such as cable stretching, bending, vibration, etc., resulting in loosening or fatigue fracture at the connection. Currently, when protecting the connection of two sections of cables, common methods include sleeving an insulating sleeve at the connection or binding with insulating tape to protect the cable connection from external influences. However, this protection method is generally suitable for some cables with a relatively small diameter used indoors. For some thicker cables outdoors, the protection effect is poor when using insulating tape binding or sleeving an insulating sleeve. When the cable is pulled by external forces or sags due to its own gravity, it is easy to cause the separation and fracture of the connection of the two sections of cables.

[0003] Therefore, we propose a cable fixing and protecting device for water conservancy and hydropower projects to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cable fixing and protecting device for water conservancy and hydropower projects. After clamping and fixing the cable through the clamping plate, the connection stability of the cable connection is improved, and the separation and fracture of the cable connection caused by external forces and the like are reduced. At the same time, the protective cover body is sleeved outside the cable connection to avoid the erosion of rainwater and the like on the cable connection and improve the service life of the cable.

[0005] To achieve the above purpose, the main technical solutions adopted by the utility model include: a protective cover body, which is composed of an upper cover body and a lower cover body arranged oppositely up and down. At least two groups of fixing components are arranged inside the protective cover body, and the fixing components are used to fix the cable passing through the inside of the protective cover body;

[0006] The fixed component includes a receiving seat connected to the inner wall of the bottom of the lower cover, clamping plates connected to both ends above the receiving seat, and a wedge block for extruding the clamping plates. An elevating frame is provided above the wedge block, and an operating rod is rotatably connected to the upper end of the elevating frame. One end of the operating rod extends to the outside of the upper cover and is threadedly connected to the upper cover. The clamping plates are inclined upward from bottom to top in a direction approaching the middle of the receiving seat. When the wedge block moves downward and abuts against the clamping plates, the two clamping plates move relative to each other to clamp the cable.

[0007] Preferably, mounting slide rails are provided on both sides of the lower cover, mounting slide bars slidably connected to the mounting slide rails are provided on both sides of the upper cover, a positioning rod is slidably connected to the mounting slide bars, a spring is provided between the upper end of the positioning rod and the upper end face of the mounting slide bar, and positioning holes are formed inside the mounting slide rails.

[0008] Preferably, one end of the mounting slide rail away from the positioning hole is closed.

[0009] Preferably, a sealing strip is provided on the outer wall of the upper end of the lower cover, and a sealing groove matching the sealing strip is provided on the outer wall of the lower end of the upper cover.

[0010] Preferably, a guiding portion is provided at the upper end of the clamping plate, and the guiding portion is opposite to the inclination direction of the clamping plate.

[0011] Preferably, elastic protective pads are provided on the inner walls of the clamping plates and the receiving seat.

[0012] Preferably, a telescopic rod is connected between the elevating frame and the inner wall of the upper cover.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. After the cable is clamped and fixed by the clamping plates, the connection stability of the cable connection is improved, and the separation and fracture of the cable connection caused by external forces and the like are reduced. At the same time, the protective cover body is sleeved outside the cable connection, which can prevent the cable connection from being eroded by rainwater and the like, and improve the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0016] Figure 1 is an isometric structural schematic diagram provided by the utility model;

[0017] Figure 2 is a disassembled sectional structural schematic diagram of the upper cover and the lower cover provided by the utility model;

[0018] Figure 3 Provided by the present utility model Figure 2 Schematic enlarged view of the structure at position A in the figure;

[0019] Figure 4 Schematic sectional view of the connection structure between the upper cover and the lower cover provided by the present utility model;

[0020] Figure 5 Schematic view of the structure of the fixing component provided by the present utility model.

[0021] In the figure, 1. Protective cover body; 11. Upper cover body; 12. Lower cover body; 13. Cable; 2. Receiving seat; 21. Clamping plate; 22. Wedge block; 23. Lifting frame; 24. Operating rod; 3. Installation slide rail; 31. Installation slide bar; 32. Positioning rod; 33. Spring; 34. Positioning hole; 35. Pulling plate; 4. Sealing strip; 41. Sealing groove; 5. Introduction part; 6. Elastic protective pad; 7. Telescopic rod. Specific implementation mode

[0022] The following will cooperate with the drawings and embodiments to detail the implementation mode of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0023] As Figures 1 - 5 shown, the cable fixing and protecting device for water conservancy and hydropower projects provided in this embodiment includes a protective cover body 1. The protective cover body 1 is composed of an upper cover body 11 and a lower cover body 12 arranged oppositely up and down. Installation slide rails 3 are provided on both sides of the lower cover body 12, and installation slide bars 31 slidably connected to the installation slide rails 3 are provided on both sides of the upper cover body 11. A positioning rod 32 is slidably connected to the installation slide bar 31. A spring 33 is provided between the upper end of the positioning rod 32 and the upper end face of the installation slide bar 31. And a positioning hole 34 is opened inside the installation slide rail 3. During installation, first pull the positioning rod 32 upward, slide the installation slide bar 31 into the installation slide rail 3 from one side of the opening of the installation slide rail 3 to connect the upper cover body 11 and the lower cover body 12. And one end of the installation slide rail 3 far from the positioning hole 34 is closed. When the installation slide bar 31 abuts against the closed end of the installation slide rail 3 and cannot slide further, release the positioning rod 32. Under the action of the spring 33, the positioning rod 32 is inserted into the positioning hole 34, so as to connect and fix the upper cover body 11 and the lower cover body 12, covering the outside of the connection part of the cable 13 to avoid the erosion of rain, snow, etc. on the connection part of the cable 13;

[0024] And a pulling plate 35 is commonly connected to the two positioning rods 32. When the pulling plate 35 is pulled upward, the two positioning rods 32 can be lifted upward at the same time, making it more convenient to use;

[0025] There are at least two sets of fixing components inside the protective cover body 1. The two sets of fixing components are respectively located on both sides of the connection of the cable 13. The fixing components are used to fix the cable 13 passing through the inside of the protective cover body 1. The fixing components include a receiving seat 2 connected to the bottom inner wall of the lower cover body 12, clamping plates 21 connected to both ends above the receiving seat 2, and a wedge block 22 for squeezing the clamping plates 21. There is a lifting frame 23 above the wedge block 22. The upper end of the lifting frame 23 is rotatably connected to an operating rod 24. One end of the operating rod 24 extends to the outside of the upper cover body 11 and is threadedly connected to the upper cover body 11. The clamping plates 21 are inclined upward from bottom to top in the direction close to the middle of the receiving seat 2. When the operating rod 24 is rotated, the operating rod 24 drives the lifting frame 23 to move downward. When the wedge block 22 moves downward synchronously and touches the clamping plates 21, the two clamping plates 21 move relative to each other, clamping the cable 13 on both sides of the cable 13, so that when the cable 13 is subjected to an external force, the possibility of the connection of the cable 13 breaking is reduced;

[0026] Further, as Figure 4 shown, a telescopic rod 7 is connected between the inner wall of the lifting frame 23 and the upper cover body 11. The telescopic rod 7 can be composed of multiple mutually sleeved rod bodies, which is used to guide the lifting frame 23, so that the lifting frame 23 can drive the wedge block 22 to move in the vertical direction, so as to accurately touch the outer wall of the clamping plate 21;

[0027] Further, as Figure 5 shown, elastic protective pads 6 are provided on the inner walls of the clamping plates 21 and the receiving seat 2. The elastic protective pads 6 can be made of materials such as silica gel and rubber, which can increase the friction between the clamping plates 21 and the cable 13, have a better fixing effect, and at the same time can avoid the clamping plates 21 from wearing the cable 13 and avoid damage to the outer surface of the cable 13;

[0028] Further, as Figure 3 shown, a sealing strip 4 is provided on the outer wall of the upper end of the lower cover body 12, and a sealing groove 41 matching the sealing strip 4 is provided on the outer wall of the lower end of the upper cover body 11. When connecting the upper cover body 11 and the lower cover body 12, the sealing strip 4 is inserted from one end of the sealing groove 41 to make the sealing effect at the connection of the upper cover body 11 and the lower cover body 12 better;

[0029] Further, as Figure 5 shown, the upper end of the clamping plate 21 is provided with a guiding portion 5, and the guiding portion 5 is opposite to the inclination direction of the clamping plate 21, that is, an inverted "eight" shape, which can make the entrance of the two clamping plates 21 larger, facilitating the cable 13 to enter the receiving seat 2 during installation;

[0030] As Figures 1 - 5As shown in the figure, the principle of the cable fixing and protecting device for water conservancy and hydropower projects provided in this embodiment is as follows: When in use, first install the lower cover body 12 at the connection of the two connecting cables 13. First, place the cable 13 in the receiving seat 2, and then slide the upper cover body 11 into the opening end of the installation slide rail 3, so that the upper cover body 11 is connected to the lower cover body 12. After the positioning rod 32 is inserted into the positioning hole 34, the upper cover body 11 and the lower cover body 12 are fixed. At this time, the wedge block 22 is located on one side of the clamping plate 21. When rotating the operating rod 24, the operating rod 24 drives the wedge block 22 to move downward through the lifting frame 23, so that the wedge block 22 abuts against the clamping plate 21, and the two clamping plates 21 move in opposite directions to clamp the cable 13, thereby making the connection of the two cables 13 more stable and reducing the possibility of the cable 13 breaking at the connection when being pulled by external force.

Claims

1. A cable fixing and protecting device for water conservancy and hydropower engineering, characterized in that: The protective cover body (1) comprises an upper cover body (11) and a lower cover body (12) which are arranged opposite to each other in the upper and lower parts, and at least two sets of fixing components are arranged inside the protective cover body (1), and the fixing components are used to fix the cables (13) passing through the interior of the protective cover body (1); The fixing assembly comprises a receiving seat (2) connected to the inner wall of the bottom of the lower cover (12), a clamping plate (21) connected to the two ends above the receiving seat (2), and a wedge block (22) for pressing the clamping plate (21); a lifting frame (23) is provided above the wedge block (22); an upper end of the lifting frame (23) is rotatably connected to an operating rod (24); one end of the operating rod (24) extends to the outside of the upper cover (11) and is threadedly connected to the upper cover (11); the clamping plate (21) is inclined from bottom to top in a direction close to the middle of the receiving seat (2); when the wedge block (22) moves downward to contact the clamping plate (21), the two clamping plates (21) move relative to each other to clamp the cable (13).

2. A cable fixing and protecting device for water conservancy and hydropower engineering according to claim 1, characterized in that: Mounting rails (3) are provided on both sides of the lower cover body (12), mounting slide bars (31) slidably connected to the mounting rails (3) are provided on both sides of the upper cover body (11), a positioning rod (32) is slidably connected to the mounting slide bar (31), a spring (33) is provided between the upper end of the positioning rod (32) and the upper end surface of the mounting slide bar (31), and a positioning hole (34) is provided inside the mounting rail (3).

3. A cable fixing and protecting device for water conservancy and hydropower engineering according to claim 2, characterized in that: One end of the mounting slide rail (3) away from the positioning hole (34) is in a closed shape.

4. A cable fixing and protecting device for water conservancy and hydropower engineering according to claim 1, characterized in that: A sealing strip (4) is provided on the upper outer wall of the lower cover body (12), and a sealing groove (41) matching with the sealing strip (4) is provided on the lower outer wall of the upper cover body (11).

5. The cable fixing and protecting device for water conservancy and hydropower engineering according to claim 1 is characterized by: An introduction portion (5) is provided at the upper end of the clamping plate (21), and the introduction portion (5) is inclined in the opposite direction to the clamping plate (21).

6. A cable fixing and protecting device for water conservancy and hydropower engineering according to claim 1, characterized in that: Elastic protective pads (6) are provided on the inner walls of the clamping plate (21) and the receiving seat (2).

7. A cable fixing and protecting device for water conservancy and hydropower engineering according to claim 1, characterized in that: A telescopic rod (7) is connected between the lifting frame (23) and the inner wall of the upper cover body (11).

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