Guider convenient for existing railway cable to pass through protective sleeve

Abstract

The utility model relates to the technical field of cable replacement, in particular to a guiding device convenient for an existing railway cable to penetrate through a protective sleeve, which comprises an adjustable guiding device main body in a cylindrical cavity shape, a cable inlet is arranged at the top end of the adjustable guiding device main body, and a handle is integrally connected to the outer side wall of the adjustable guiding device main body. The lower end of the adjustable guiding device main body is provided with a progressive pipe expanding layer in a conical cavity shape, the inner cavity of the progressive pipe expanding layer is communicated with the inner cavity of the adjustable guiding device main body, the lower end of the progressive pipe expanding layer is provided with a cable outlet, the adjustable guiding device main body comprises a PVC plate, the thickness of the head end of the PVC plate is larger than that of the tail end of the PVC plate, and the diameter of the PVC plate is larger than that of the tail end of the PVC plate. A sliding groove is formed in the head end of the PVC plate, the head end and the tail end of the PVC plate are connected in a sleeved mode through the sliding groove, and a fixing hole is formed in the outer side wall of the head end of the PVC plate. The problems that the construction efficiency is low, the construction period is long and the cable is easily scratched when the existing cable passes through the protective sleeve are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable replacement, in particular to a guide which is convenient for existing railway cables to pass through protective casings. Background Art

[0002] With the development of the times, many domestic railways have reached the stage of major repairs and renovations, and cable replacement is one of the important tasks. When replacing cables, especially cables on brackets, they need to be worn in protective sleeves. Existing cables are usually manually inserted into protective sleeves.

[0003] However, practice has shown that the existing cables have the following problems when they are put through protective sleeves: First, the "window" time for construction of existing railway lines is short, and after the construction is completed, it must be "work completed, materials exhausted, and the site cleared", but the length of the cable ranges from a few hundred meters to several thousand meters. It is impossible to directly put the entire cable into the protective sleeve at a "window" point, resulting in low construction efficiency and long construction period; second, the edge of the protective sleeve is sharp, and the cable is easily scratched when it is directly inserted into the pipe.

[0004] Therefore, it is necessary to invent a guide that is convenient for the existing railway cables to pass through the protective casing to solve the above problems. Utility Model Content

[0005] The utility model provides a guide for passing existing railway cables through protective tubes to solve the problems of low construction efficiency, long construction period and easy scratching when the existing cables are passed through protective tubes.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A guide for facilitating the insertion of existing railway cables into protective sleeves comprises an adjustable guide body in the shape of a cylindrical cavity, a cable inlet is arranged at the top of the adjustable guide body, a handle is integrally connected to the outer side wall of the adjustable guide body, a progressive pipe expansion layer in the shape of a conical cavity is arranged at the lower end of the adjustable guide body, the inner cavity of the progressive pipe expansion layer is communicated with the inner cavity of the adjustable guide body, and a cable outlet is arranged at the lower end of the progressive pipe expansion layer.

[0008] Furthermore, the adjustable guide body includes a PVC plate, the thickness of the head end of the PVC plate is greater than the thickness of the tail end thereof, a slide groove is provided at the head end of the PVC plate, the head end and the tail end of the PVC plate are connected through the slide groove, a fixing hole is provided on the outer side wall of the head end of the PVC plate, a fixing bolt is threadedly connected in the fixing hole, and the tail end of the fixing bolt is in contact with the outer side wall of the tail end of the PVC plate.

[0009] Furthermore, the progressive tube expansion layer includes a plurality of detachable PVC fan-shaped sheets, the bottom end of each detachable PVC fan-shaped sheet is arc-shaped, and the outer surface of each detachable PVC fan-shaped sheet is provided with a silicone layer.

[0010] Furthermore, each detachable PVC sector sheet is connected to the bottom end of the PVC board by bolts.

[0011] Furthermore, an adjustable clamp is provided at the top end of the outer side wall of the adjustable guide body.

[0012] Furthermore, the inner cavity of the adjustable guide body is provided with an optical fiber displacement sensor.

[0013] Furthermore, the inner side wall of the adjustable guide body is provided with a Teflon coating.

[0014] The utility model has a reasonable and reliable structural design, which realizes the efficient pipe threading operation of the cable within the limited construction window period, can prop open the mouth of the protective casing to provide a channel for the smooth insertion of the cable, and can complete the pipe threading of the whole reel of cables at one time even within the tight "skylight" time, which can greatly improve the construction efficiency and shorten the construction period; at the same time, it is suitable for cables of different diameters, which improves the versatility and scope of application; further, it reduces the friction and damage of the cable during the pipe threading process, so that the cable can have a smooth transition, avoids the problem of direct scratches on the edge of the protective casing mouth, and effectively protects the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure expansion of the PVC board in the utility model.

[0017] In the figure: 1-handle, 2-PVC board, 3-slide groove, 4-fixing hole, 5-fixing bolt, 6-detachable PVC fan-shaped piece, 7-silicone layer, 8-adjustable clamp. DETAILED DESCRIPTION

[0018] A guide for facilitating the passing of existing railway cables through protective casings, as shown in the attached Figure 1 As shown, it includes an adjustable guide body in the shape of a cylindrical cavity, a cable inlet is arranged at the top of the adjustable guide body, a handle 1 is integrally connected to the outer wall of the adjustable guide body, a progressive tube expansion layer in the shape of a conical cavity is arranged at the lower end of the adjustable guide body, the inner cavity of the progressive tube expansion layer is connected to the inner cavity of the adjustable guide body, and a cable outlet is arranged at the lower end of the progressive tube expansion layer.

[0019] As attached Figure 1 ~Attached Figure 2As shown, the adjustable guide body includes a PVC plate 2, the thickness of the head end of the PVC plate 2 is greater than the thickness of the tail end thereof, a slide groove 3 is provided at the head end of the PVC plate 2, the head end and the tail end of the PVC plate 2 are sleeved through the slide groove 3, a fixing hole 4 is provided on the outer side wall of the head end of the PVC plate 2, a fixing bolt 5 is threadedly connected in the fixing hole 4, and the tail end of the fixing bolt 5 is in contact with the outer side wall of the tail end of the PVC plate 2.

[0020] The structural design of the adjustable guide body and the progressive expansion layer in the utility model realizes the efficient pipe threading operation of the cable within a limited construction window period. The adjustable guide body can open the protective sleeve opening to provide a channel for the smooth insertion of the cable. Even within the tight "window" time, the pipe threading of the entire cable reel can be completed at one time, which can greatly improve the construction efficiency and shorten the construction period. The PVC board 2 is formed into an adjustable guide body in the shape of a cylindrical cavity through the thickness difference between the head and tail ends and the sleeve connection of the slide groove 3. At the same time, the cooperation of the slide groove 3 with the fixing hole 4 and the fixing bolt 5 ensures the stability of the adjustable guide body, thereby realizing the adjustment of the diameter of the adjustable guide body, so that it can be suitable for cables of different diameters.

[0021] As attached Figure 1 As shown, the progressive tube expansion layer includes a plurality of detachable PVC fan-shaped sheets 6 , the bottom end of each detachable PVC fan-shaped sheet 6 is arc-shaped, and a silicone layer 7 is provided on the outer surface of each detachable PVC fan-shaped sheet 6 .

[0022] Each detachable PVC sector sheet 6 is connected to the bottom end of the PVC board 2 with bolts.

[0023] The progressive tube expansion layer is composed of multiple PVC fan-shaped sheets 6 with arc bottoms and is covered with a silicone layer 7, which reduces friction and damage to the cable during the threading process. This design allows the cable to transition smoothly and avoids direct scratches on the edge of the protective sleeve. At the same time, the detachable design makes it easy to adjust the size of the progressive tube expansion layer according to the actual cable diameter, thereby improving the versatility and applicability of the guide.

[0024] As attached Figure 1 As shown, an adjustable clamp 8 is provided at the top end of the outer side wall of the adjustable guide body.

[0025] The structural design of the adjustable clamp 8 can further ensure the stable positioning of the cable before entering the protective sleeve, thereby increasing the flexibility and safety of the operation.

[0026] The inner cavity of the adjustable guide body is provided with an optical fiber displacement sensor.

[0027] The structural design of the fiber optic displacement sensor enables on-site construction personnel to monitor the position and status of the cable during the pipe threading process in real time. The collected data can be wirelessly transmitted to an external display, allowing on-site construction personnel to clearly understand the advancement status of the cable while accurately controlling the pipe threading speed and distance, thereby effectively controlling the progress of the pipe threading operation and improving the accuracy of construction.

[0028] The inner side wall of the adjustable guide body is provided with a Teflon coating.

[0029] The Teflon coating reduces the friction coefficient between the cable and the inner wall of the adjustable guide body, making the cable smoother during advancement, thereby increasing the speed of pipe penetration and further reducing the risk of injury.

[0030] When in use, first adjust the length of the PVC plate 2 through the slide groove 3, the fixing hole 4, and the fixing bolt 5 according to the diameter of the existing cable, so as to change the diameter of the adjustable guide body to adapt to the diameter requirements of the cable, and at the same time adjust the detachable PVC fan-shaped piece 6 according to the diameter of the adjustable guide body, disassemble or reassemble it to form a regular progressive expansion layer in the shape of a conical cavity; then insert the guide into the protective sleeve, so that the progressive expansion layer is inserted first, and fix the top of the adjustable guide body with the adjustable clamp 8 at the starting position where the cable needs to be inserted into the protective sleeve, so as to ensure the stability of the guide; then the construction personnel hold the handle 1 and insert the cable through the cable entrance The cable is slowly introduced into the interior of the guide. As the cable gradually expands and passes through the progressive expansion layer, it smoothly enters the protective sleeve from the cable outlet at the lower end of the progressive expansion layer. During this process, the outer surface of the cable is protected by the silicone layer to avoid scratches. The Teflon coating on the inner wall of the adjustable guide body can reduce friction and make the cable move smoothly. At the same time, the optical fiber displacement sensor monitors the cable position in real time. The data collected can be wirelessly transmitted to an external display to guide on-site construction personnel to control the speed and force of the pipe insertion, thereby completing the use of the guide. The problem of low construction efficiency, long construction period and easy scratching of existing cables when passing through protective sleeves is overcome.

[0031] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide for facilitating the insertion of existing railway cables into protective casings, characterized in that: The invention comprises an adjustable guide body in the shape of a cylindrical cavity, a cable inlet is arranged at the top of the adjustable guide body, a handle (1) is integrally connected to the outer wall of the adjustable guide body, a progressive tube expansion layer in the shape of a conical cavity is arranged at the lower end of the adjustable guide body, the inner cavity of the progressive tube expansion layer is connected to the inner cavity of the adjustable guide body, and a cable outlet is arranged at the lower end of the progressive tube expansion layer.

2. A guide for facilitating the insertion of existing railway cables into protective casings according to claim 1, characterized in that: The adjustable guide body comprises a PVC plate (2), the thickness of the head end of the PVC plate (2) being greater than the thickness of the tail end thereof, the head end of the PVC plate (2) being provided with a slide groove (3), the head end and the tail end of the PVC plate (2) being sleeved through the slide groove (3), the outer side wall of the head end of the PVC plate (2) being provided with a fixing hole (4), a fixing bolt (5) being threadedly connected in the fixing hole (4), and the tail end of the fixing bolt (5) being in contact with the outer side wall of the tail end of the PVC plate (2).

3. A guide for facilitating the insertion of existing railway cables into protective casings according to claim 2, characterized in that: The progressive tube expansion layer comprises a plurality of detachable PVC fan-shaped sheets (6), the bottom end of each detachable PVC fan-shaped sheet (6) is arc-shaped, and the outer surface of each detachable PVC fan-shaped sheet (6) is provided with a silicone layer (7).

4. A guide for facilitating the insertion of existing railway cables into protective casings according to claim 3, characterized in that: Each detachable PVC sector sheet (6) is bolted to the bottom end of the PVC board (2).

5. The guide for facilitating the insertion of existing railway cables into protective casings according to claim 1, characterized in that: An adjustable clamp (8) is provided at the top end of the outer side wall of the adjustable guide body.

6. The guide for facilitating the insertion of existing railway cables into protective casings according to claim 1, characterized in that: The inner cavity of the adjustable guide body is provided with an optical fiber displacement sensor.

7. The guide for facilitating the insertion of existing railway cables into protective casings according to claim 1, characterized in that: The inner side wall of the adjustable guide body is provided with a Teflon coating.

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