Power tunnel cable laying pulley type tension adjusting device

Abstract

This utility model discloses a pulley-type tension adjustment device for laying optical cables in power tunnels, comprising: a cable and several support frames, with the cable located at the upper end of the support frames; multiple tensioning members, each disposed inside a corresponding support frame, for clamping and tensioning the cable; and multiple clamping members, arranged in pairs inside a corresponding support frame. This utility model utilizes the cooperation between the multiple clamping members and tensioning members. By placing the cable between the clamping members and tensioning members, the optical cable, through the rolling of the first pulley, drives the disc to rotate. The rubber pads used to tension the loose end of the optical cable towards one end, while the second pulley rotates. The rotation of the threaded sleeve causes the two clamping blocks to rotate towards the center, clamping and fixing the cable. The intermittent tensioning and clamping method makes the cable less prone to breakage during tensioning.

Description

Technical Field

[0001] This utility model relates to the technical field of power optical cable tension adjustment devices, and in particular to a pulley-type tension adjustment device for laying power tunnel optical cables. Background Technology

[0002] Because my country has a large number of tunnels, cables are usually installed in the tunnels to better protect the signal. During installation, the optical cables usually need to be tensioned, so a pulley-type tension adjustment device for laying optical cables in power tunnels is required.

[0003] Currently, most pulley-type tension adjustment devices for laying optical cables in power tunnels require a drive structure to tension the optical cable. During installation, due to the weight of the optical cable, excessively fast movement can cause the cable at the laying end to be overly tensioned, while the cable at the other end moves too slowly or not at all. Because the cable span in the middle is relatively long, it is more prone to breakage and damage during tensioning. Utility Model Content

[0004] The purpose of this invention is to provide a pulley-type tension adjustment device for laying optical cables in power tunnels, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulley-type tension adjustment device for laying optical cables in power tunnels, comprising: a cable and several support frames, wherein the cable is located at the upper end of the support frames; Multiple tensioning components are provided, each disposed inside a corresponding support frame, for clamping and tensioning the cable; The clamping components are provided in several pairs, and are set inside the corresponding support frame to clamp and fix the cable.

[0006] Preferably, the tensioning member includes a second rotating shaft and two rotating rollers disposed inside the support frame, and clamping blocks are fixedly sleeved on the outer walls of the two rotating rollers, and toothed blocks are provided on the outer walls of the clamping blocks; The second rotating shaft outer wall fixing sleeve is provided with a second pulley and two threaded sleeves; The inner wall of the clamping block is provided with anti-slip blocks.

[0007] Preferably, the clamping member includes a first rotating shaft disposed inside the support frame, and a first pulley and two toothed sleeves are fixedly sleeved on the outer wall of the first rotating shaft, and a disc is slidably sleeved on the outer wall of each of the two toothed sleeves, and a connecting sleeve is rotatably connected to the outer wall of the disc. The disk is tilted at a 30-degree angle in the vertical direction, and the inner wall of the disk is provided with a rubber patch.

[0008] Preferably, the threaded sleeve and the toothed block are meshed together.

[0009] Preferably, the connecting sleeve and the toothed sleeve are threadedly connected.

[0010] Preferably, the outer walls of the first pulley and the second pulley are tooth-shaped.

[0011] Preferably, the disc is located between the first pulley and the support frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By cooperating with multiple clamping and tensioning components, the cable is placed between the clamping and tensioning components. The optical cable rolls on the first pulley, which drives the disc to rotate. The rubber pads can pull the loose end of the optical cable to one end. At the same time, the second pulley rotates, and the rotation of the threaded sleeve causes the two clamping blocks to rotate towards the middle, clamping and fixing the cable. The use of intermittent tensioning and clamping makes the middle cable less prone to breakage during the tensioning process.

[0013] The combination of the toothed sleeve, disc, and connecting sleeve allows for tensioning of cables of different diameters, making it more practical. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the orientation structure of the support frame of this utility model; Figure 3 This is a schematic diagram of the tensioning component structure of this utility model; Figure 4 This is a side view of the clamping component of this utility model; Figure 5 This is a schematic diagram of the overall structure of the clamping component of this utility model; Figure 6 This is a schematic diagram of the disc structure of this utility model.

[0016] As indicated by the labels in the diagram: 1. Cable; 2. Support frame; 3. Clamping component; 4. Tensioning component; 31. First rotating shaft; 32. Disc; 33. Gear sleeve; 34. Connecting sleeve; 35. First pulley; 36. Rubber pad; 41. Second rotating shaft; 42. Second pulley; 43. Threaded sleeve; 44. Clamping block; 45. Gear block; 46. Anti-slip block; 47. Rotating roller. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in 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 a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0018] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] In the description of this utility model, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only 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.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] It should be understood that although the terms "first," "second," "third," etc., may be used to describe various components in this invention, this information should not be limited to these terms. These terms are only used to distinguish components of the same type from each other. For example, without departing from the scope of this invention, a first component may also be referred to as a second component, and similarly, a second component may also be referred to as a first component. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings: A pulley-type tension adjustment device for laying optical cables in power tunnels includes: a cable 1 and several support frames 2, with the cable 1 located at the upper end of the support frames 2; Tensioning components 4 are provided in multiples and are respectively installed inside the corresponding support frame 2, for clamping and tensioning the cable 1; Clamping components 3 are provided in several pairs, and are set inside the corresponding support frame 2 to clamp and fix the cable 1.

[0024] Specifically, the tensioning member 4 includes a second rotating shaft 41 and two rotating rollers 47 disposed inside the support frame 2, and clamping blocks 44 are fixedly sleeved on the outer walls of the two rotating rollers 47, and toothed blocks 45 are disposed on the outer walls of the clamping blocks 44. The outer wall of the second rotating shaft 41 is fixedly fitted with a second pulley 42 and two threaded sleeves 43; The inner wall of the clamping block 44 is provided with an anti-slip block 46.

[0025] Specifically, the clamping member 3 includes a first rotating shaft 31 disposed inside the support frame 2, and a first pulley 35 and two toothed sleeves 33 are fixedly sleeved on the outer wall of the first rotating shaft 31, and a disc 32 is slidably sleeved on the outer wall of each of the two toothed sleeves 33, and a connecting sleeve 34 is rotatably connected to the outer wall of the disc 32. The disc 32 is tilted at a 30-degree angle in the vertical direction, and the inner wall of the disc 32 is provided with a rubber patch 36.

[0026] Specifically, the threaded sleeve 43 and the toothed block 45 are engaged.

[0027] Specifically, the connecting sleeve 34 and the toothed sleeve 33 are threadedly connected.

[0028] Specifically, the outer walls of the first pulley 35 and the second pulley 42 are tooth-shaped.

[0029] Specifically, the disc 32 is located between the first pulley 35 and the support frame 2.

[0030] Example 1 In this embodiment, refer to Figures 1 to 6 To address the issue of cable breakage due to large spans during installation, the following specific technologies are employed: In use, the device is first installed on both sides of the inclined tunnel. Then, the optical cable winch moves forward and lowers the optical cable 1 at the rear. An extra portion of the cable 1 is first extended at one end of the tunnel. Under the traction of the optical cable winch, when the optical cable is placed between the clamping member 4 and the tensioning member 3, and due to the weight of the optical cable, it will drive the first pulley 35 and the second pulley 42 at the lower end to roll as it slides forward. Since the disc 32 is tilted at a 30-degree angle in the vertical direction, the cable 1 will be tensioned forward in a narrower position during the rotation. At the same time, the rotation of the second pulley 42, through the rotation of the threaded sleeve 43, can drive the two clamping blocks 44 to move towards the middle, thereby achieving intermittent clamping and fixing of the cable 1, thus solving the problem of the cable 1 breaking due to the large tension span.

[0031] Example 2 This embodiment is based on Embodiment 1, and refers to... Figures 1 to 6 To solve the adjustment problem of disc 32, the specific technology is as follows: During use, depending on the diameter of the cable 1, the connecting sleeve 34 needs to be rotated to make the connecting sleeve 34 drive the disc 32 to slide on the outer wall of the toothed sleeve 33, thereby changing the distance between the two discs 32. With the assistance of the rubber sticker 36, it is easier to tension the cable 1 with different diameters, which is more practical.

[0032] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0033] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An electrical power tunnel cable deployment pulley type tension adjustment device, characterized by, include: The cable (1) and several support frames (2), wherein the cable (1) is located at the upper end of the support frames (2); Tensioning components (4) are provided in multiples and are respectively installed inside the corresponding support frame (2) for clamping and tensioning the cable (1); Clamping components (3) are provided in several pairs and are set inside the corresponding support frame (2) for clamping and fixing the cable (1).

2. The power tunnel cable deployment pulley type tension adjustment device according to claim 1, wherein, The tensioning member (4) includes a second rotating shaft (41) and two rotating rollers (47) disposed inside the support frame (2), and clamping blocks (44) are fixedly sleeved on the outer walls of the two rotating rollers (47), and toothed blocks (45) are disposed on the outer walls of the clamping blocks (44). The outer wall of the second rotating shaft (41) is fixedly fitted with a second pulley (42) and two threaded sleeves (43). The inner wall of the clamping block (44) is provided with an anti-slip block (46).

3. The power tunnel cable deployment pulley type tension adjustment device of claim 1, wherein, The clamping member (3) includes a first rotating shaft (31) disposed inside the support frame (2), and a first pulley (35) and two toothed sleeves (33) are fixedly sleeved on the outer wall of the first rotating shaft (31), and a disc (32) is slidably sleeved on the outer wall of each of the two toothed sleeves (33), and a connecting sleeve (34) is rotatably connected to the outer wall of the disc (32). The disk (32) is tilted at a vertical angle of 30 degrees, and the inner wall of the disk (32) is provided with a rubber patch (36).

4. The power tunnel cable deployment pulley type tension adjustment device of claim 2, wherein, The threaded sleeve (43) and the toothed block (45) are engaged.

5. The power tunnel cable deployment pulley type tension adjustment device of claim 3, wherein, The connecting sleeve (34) and the toothed sleeve (33) are threaded together.

6. The power tunnel cable deployment pulley type tension adjustment device of claim 3, wherein, The outer walls of the first pulley (35) and the second pulley (42) are tooth-shaped.

7. The power tunnel cable deployment pulley type tension adjustment device of claim 3, wherein, The disk (32) is located between the first pulley (35) and the support frame (2).

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