Cable protection device

Abstract

The present application relates to a cable protection device, comprising: a protective bag filled with sand, which is pressed onto a cable; the protective bag is connected by a zipper and extends along the cable laying direction; the protective bag is provided with an inner liner for filling with sand, the outer wall of the inner liner is provided with a groove, and a rotatable gland member is mounted on the groove, the gland member including an arcuate groove, and at least a portion of the cable is accommodated in the arcuate groove and the molded portion of the protective bag. The cable protection device of the present invention can be applied to railway cable troughs to prevent the leakage of sand in the sandbag, while having high adaptability and reliably providing press-fit protection for railway signal cables.

Description

Technical Field

[0001] The present application relates to the technical field of railway signal cable protection, and in particular to a cable protection device. Background Art

[0002] According to the current railway and railway signal design specifications, railway signal cables are laid in special cable troughs on both sides of the line. Cable troughs with covers along the line should be protected with sand bags.

[0003] There are no special sandbags for protecting railway signal cables in the existing technology. To protect railway signal cables located in cable troughs along the railway, construction units often purchase ordinary flood-proof sandbags, fill them with sand, and place them on the railway signal cables in the cable troughs to prevent the cable trough cover from falling into the cable trough and damaging the railway signal cables.

[0004] However, existing flood control sandbags are not suitable for the size of railway cable troughs. At the bends in the troughs, the purchased ordinary flood control sandbags cannot completely cover the cables, resulting in frequent damage to the cables caused by the cable trough cover. Furthermore, because the material of ordinary flood control sandbags is not fire retardant, they cannot meet the fire protection requirements when railway signal cables are introduced into signal equipment houses. Furthermore, over time, the sandbags often break, causing the sand inside the sandbags to leak into the cable trough, affecting the drainage of the cable trough. Summary of the Invention

[0005] The purpose of this application is to provide a cable protection device that can be used in railway cable troughs to prevent the leakage of sand in sand bags. At the same time, it has high conformability and can reliably perform press-fit protection on railway signal cables.

[0006] To achieve the above-mentioned object, the present invention provides a cable protection device, comprising: a protection bag pressed onto the cable and filled with sand, the protection bag being spliced ​​by a zipper and extending along the laying direction of the cable;

[0007] The protective bag is provided with an inner liner for filling sand, the outer side wall of the inner liner is provided with a groove, a rotatable gland is installed on the groove, and the gland includes an arc-shaped groove, and at least a portion of the cable is accommodated in the arc-shaped groove and the molded part of the protective bag.

[0008] In an optional embodiment, the protective bag includes a plurality of bags, each of which is provided with the inner liner, and the plurality of protective bags are connected by a double-layer zipper.

[0009] In an optional embodiment, the protective bag includes an end protective bag, a connection protective bag, and a turn protective bag, and the turn protective bag includes an arc-shaped protective bag or a right-angle protective bag.

[0010] In an optional embodiment, the right-angle protection bag includes two inner liners, and the two inner liners are connected to each other through a beveled surface at the corner of the right-angle protection bag.

[0011] In an optional embodiment, the inner lining is provided in each of the protective bags, and the material of the inner lining includes a fire-retardant material, and the groove includes at least one provided on the inner lining.

[0012] In an optional embodiment, the liner includes an elliptical cylindrical structure capable of shaping the protective bag, and the groove includes a sink opened in the long axis direction of the liner, the width direction of the sink extends along the long axis direction of the liner, and the sink has at least a length along the axial direction of the liner.

[0013] In an optional embodiment, a mounting bar protruding from the sinking plane is provided in the middle of the groove in the longitudinal direction, the mounting bar extends along the long axis direction of the liner, and the gland member is detachably mounted on the mounting bar.

[0014] In an optional embodiment, the gland member includes a rotating disc, a connecting cylinder, and a cable claw of an integral structure, the arc-shaped groove is provided on the cable claw, and the mounting bar is provided with first grooves for inserting the rotating disc at intervals, the first grooves including square grooves extending in the thickness direction of the mounting bar, the rotating disc being inserted into the square grooves, and the sidewall edges of the rotating disc being tangent to the inner groove walls of the first grooves;

[0015] A second groove for inserting the connecting cylinder is provided on the side of the first groove. The second groove includes an open groove provided on the side of the first groove. The connecting cylinder extends into the opening of the second groove and is clamped on the open groove, while driving the rotating disc to be inserted into the first groove.

[0016] In an optional embodiment, a latch is installed on the inner liner, and the latch is inserted into the mounting bar and can intercept and block the connecting cylinder in the second groove;

[0017] The inner liner is provided with first transverse through holes at locations on both sides of the groove, and the mounting bar is provided with second transverse through holes at locations where the first groove is not provided. The first transverse through holes and the second transverse through holes are connected and arranged on the same straight line, and the extension direction of the straight line is parallel to the long axis direction of the inner liner;

[0018] The second transverse hole is provided at a position where the second groove is close to the groove surface of the mounting strip where the first groove is provided.

[0019] In an optional embodiment, external threads are provided on both sides of the latch, an internal thread matching the external threads is provided in the first transverse hole, a pin hole is provided near the end of the latch and on the outside of the external threads, both ends of the latch extend from the outer side wall of the inner liner, and the pin hole is exposed on the inner liner;

[0020] The pin holes are respectively connected with straps, and the straps on both sides are butted against each other to fix the pin on the inner liner.

[0021] The cable can be effectively protected by pressing a protective bag filled with sand onto the cable. The protective bags are spliced ​​together by zippers, which facilitates the connection between the protective bags. The connected protective bags extend along the laying direction of the cable, which can provide good coverage for the cable and prevent the cable from being exposed.

[0022] The inner liner for filling sand in the protective bag can prevent the leakage of sand. The grooves provided on the inner liner and the rotatable pressure cover installed on the grooves can achieve a good conforming effect and directly press the cables at the bottom of each protective bag.

[0023] The rotatable gland piece is located on the inner side of the protective bag, and combined with the arc-shaped groove it includes, it can cooperate with the arc-shaped outer wall of the cable. It is shaped by the arc-shaped groove and the corresponding parts of the protective bag, and at least a part of the cable is accommodated in the arc-shaped groove and the shaped parts of the protective bag. It can effectively concentrate the gland force of the protective bag on the gland piece, thereby maintaining reliable gland protection for the cable.

[0024] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the end protection bag in this application;

[0027] Figure 2 This is a schematic diagram of the structure of the arc-shaped protective bag in this application;

[0028] Figure 3 This is a schematic diagram of the structure of the right-angle protective bag in this application;

[0029] Figure 4This is a schematic diagram of the structure of the inner liner in this application;

[0030] Figure 5 This is a schematic diagram of the structure of the gland member in this application;

[0031] Figure 6 This is a schematic diagram of the structure of the latch in this application;

[0032] Figure 7 This is a schematic diagram of the installation structure of the gland member on the inner liner in this application.

[0033] icon:

[0034] 1-protective bag; 1a-end protective bag; 1b-arc protective bag; 1c-right angle protective bag; 11-double zipper;

[0035] 2- liner; 21- groove; 22- mounting bar; 23- first groove; 24- second groove; 25- first transverse hole; 26- second transverse hole;

[0036] 3- gland; 31- rotating disc; 32- connecting cylinder; 33- cable claw;

[0037] 4-arc groove;

[0038] 5-pin; 51-external thread; 52-pin hole. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0041] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0042] The cable protection device in this application is mainly used to protect railway signal cables in railway cable troughs. By changing the structural form of existing traditional sand bags and setting up an inner lining, it prevents sand from leaking out and can ensure effective and reliable protection of cables.

[0043] See also Figure 1-Figure 3 The cable protection device in the present application includes a protection bag 1, which is filled with sand. After being filled with sand, the protection bag 1 is pressed onto the cable to effectively protect the cable.

[0044] Different from the existing traditional flood prevention sandbags, the protective bag 1 in the present invention is spliced ​​by a zipper and extends along the laying direction of the cable. Through this splicing method, the entire cable can be covered to prevent the cable from being exposed in the cable trough, thereby preventing the cable trough cover from falling into the cable trough and damaging the railway signal cable.

[0045] Combine Figure 4 as well as Figure 5 Based on the spliced ​​assembled protective bag 1, in order to effectively fix the cable and enhance the conforming effect of the protective bag 1, an inner liner 2 is provided in the protective bag 1, and sand is specifically filled in the inner cavity of the inner liner 2.

[0046] The inner lining 2 in the present invention comprises a fireproof and flame-retardant material. Preferably, the inner lining 2 comprises a fireproof and flame-retardant elastic material, which can make the protective bag 1 have fireproof and flame-retardant properties, meet the fire protection requirements of railway signal cables during the laying process, and at the same time have a certain deformable effect to meet the shape compliance.

[0047] A groove 21 is provided on the outer wall of the inner liner 2, and a rotatable gland member 3 is installed on the groove 21. The gland member 3 includes an arc-shaped groove 4. Combined with its rotatable form on the inner liner 2, the direction of the arc-shaped groove 4 on the gland member 3 can be adjusted, thereby facilitating the fixation of the cable gland.

[0048] The pressure cover part 3 is located outside the inner liner 2 and is arranged on the inner side of the protective bag 1. The part of the protective bag 1 located in the groove 21 has a certain amount of loose adjustment. The angle posture of the pressure cover part 3 can be manually adjusted through the bag body of the protective bag 1, which is convenient for shaping the pressure cover part of the protective bag 1.

[0049] Furthermore, it is convenient to clamp the cylindrical cable through the arc-shaped groove 4 on the gland member 3, thereby ensuring that the protective bag 1 fixes the gland of the cable.

[0050] After the cable is laid, during the process of pressing the protective bag 1 onto the cable, the pressing part 3 on the protective bag 1 corresponding to the cable is rotated and adjusted so that the extension direction of the arc groove 4 on the pressing part 3 is consistent with the laying direction of the cable. The overall weight of the protective bag 1 can be concentrated on the matching position between the arc groove 4 and the cable, which is beneficial to the reliability of fixing the cable pressing cover.

[0051] Each protective bag 1 in the present invention corresponds to a section of the cable length. By locating the cable on the part of the gland 3, that is, at least a part of each protective bag 1 on the entire cable is placed on the arc-shaped groove 4 of the gland 3 and the molded part of the protective bag 1, the entire cable can be fixed at multiple points in the laying direction, thereby achieving gland fixation of the cable while effectively protecting the cable.

[0052] Based on this, the protective bag 1 in the present invention includes a plurality of protective bags 1 that are spliced ​​together. Each protective bag 1 is provided with an inner liner 2 , and a rotatable pressure cover 3 is installed on the inner liner 2 .

[0053] In order to prevent sand from being exposed at the joints of different protective bags, multiple protective bags are spliced ​​together through a double-layer zipper 11. Specifically, the double-layer zipper 11 includes an inner zipper and an outer zipper arranged at the joints of the protective bags 1, which effectively achieves a sealing effect while ensuring the reliability of the splicing.

[0054] The protective bag 1 includes an end protective bag 1a, a connection protective bag and a bend protective bag, wherein the bend protective bag is mainly for cables at the bends in the cable trough.

[0055] The end protection bag 1a is mainly used to protect the starting and ending sections of the cable, while the connecting protection bag is used to connect and extend the protection bags so that different protection bags can be connected as a relative whole to provide pressure protection for the winding current.

[0056] Based on the different capping locations of the aforementioned bend protection bags, the bend protection bags include arc-shaped protection bags 1b or right-angle protection bags 1c, which are applied to the corners of the cable trough. The arc-shaped protection bags 1b or right-angle protection bags 1c are also provided with an inner liner 2 to ensure the capping effect on the cables.

[0057] Two separate inner liners 2 can be provided in the right-angle protection bag 1c. The two inner liners 2 are provided with 45° bevel angles at the corners of the right-angle protection bag 1c, and the two separate inner liners 2 are butted against each other through the beveled surfaces of the bevel angles.

[0058] In the process of capping the cable, flexible adjustments can be made according to specific actual conditions. The inner liner 2 may not be provided in the arc-shaped protective bag 1b. The cable can be directly capped by the protective bag 1 filled with sand, which can also achieve the purpose of protecting the cable.

[0059] From the perspective of fixing the cable through multi-point glands 3, each lining liner 2 is provided with a groove 21, and the groove 21 includes at least one provided on the lining liner 2. Preferably, when one is provided, the groove 21 is provided in the middle of the lining liner 2; when two are provided, the grooves 21 are provided at both ends of the lining liner 2.

[0060] Furthermore, the lining 2 includes an elliptical cylindrical structure capable of shaping the protective bag 1, and the groove 21 includes a sink groove opened in the long axis direction of the lining 2, the width direction of the sink groove extends along the long axis direction of the lining 2, and has at least a length along the axial direction of the lining 2, constituting a groove 21 structure dug on the outer wall of the lining 2. Through this setting, an operating space is provided for the rotation of the pressure cover 3.

[0061] A mounting strip 22 protruding from the surface of the recess is provided in the middle of the groove 21 in the longitudinal direction for installation of the gland member 3 in the groove 21. Specifically, the mounting strip 22 extends along the long axis direction of the liner 2, and a mounting groove for connection and installation of the gland member 3 is provided on the mounting strip 22.

[0062] The gland member 3 is detachably mounted on the mounting bar 22 . Specifically, the gland member 3 is detachably connected to the mounting groove of the mounting bar 22 .

[0063] The gland member 3 includes a rotating disc 31 , a connecting cylinder 32 and a cable claw 33 . The rotating disc 31 , the connecting cylinder 32 and the cable claw 33 are an integrated structure, and the arc-shaped groove 4 is provided on the cable claw 33 .

[0064] Furthermore, first grooves 23 for inserting the rotating disc 31 are arranged at intervals on the mounting bar 22. The first grooves 23 include square grooves 21 opened in the thickness direction of the mounting bar 22. The rotating disc 31 is inserted from the first grooves 23, and its side wall edges are arranged tangent to the inner groove walls of the first grooves 23, so that the rotating disc 31 can rotate in the first grooves 23.

[0065] At the same time, a second groove 24 for inserting the connecting cylinder 32 is provided on the side of the first groove 23. The second groove 24 is specifically an open groove provided on the side of the first groove 23. The first groove 23 and the second groove 24 form a T-shaped structure. During the connection process, the gland 3 clamps the connecting cylinder 32 through the second groove 24. The connecting cylinder 32 extends from the opening of the second groove 24 and drives the rotating disk 31 to be inserted into the first groove 23, so that the rotating disk 31 can rotate while being tangent to the groove surface of the first groove 23, thereby adjusting the extension direction of the arc groove 4 on the cable claw 33 so that it can be consistent with the extension direction of the cable, thereby ensuring the clamping and fixation of the cable.

[0066] By detachably connecting the gland member 3 to the mounting bar 22 , the size of the gland member 3 can be changed so that arcuate grooves 4 of different sizes can be matched with specific cable outer diameters to meet the gland requirements of various railway signal cables.

[0067] In order to prevent the cover member 3 from sliding out of the groove 21, it is necessary to limit and restrain the cover member 3 on the mounting bar 22, and it is also necessary to take into account the rotation of the cover member 3, that is, to prevent the cover member 3 from falling off the mounting bar 22 without affecting its rotation adjustment.

[0068] Combine Figure 6-Figure 7 A latch 5 is installed on the inner liner 2, and the latch 5 is inserted into the mounting strip 22. Specifically, a first transverse hole 25 for inserting the latch 5 is provided on the inner liner 2 on both sides of the groove 21. At the same time, a second transverse hole 26 is provided on the portion of the mounting strip 22 where the first groove 23 is not provided. The first transverse hole 25 is connected to the second transverse hole 26. Furthermore, the communicating transverse holes are arranged on the same straight line, and the extension direction of the straight line is parallel to the long axis of the elliptical inner liner 2.

[0069] Preferably, the opening portion of the second transverse hole 26 is arranged on the second groove 24 at a portion of the groove surface of the mounting strip 22 close to the first groove 23, so that the latch 5 can intercept and block the connecting cylinder 32 after passing through the plug-in liner 2 and the mounting strip 22, preventing the connecting cylinder 32 from escaping from the second groove 24, and without affecting the rotation of the rotating disc 31 in the first groove 23.

[0070] An internal thread is provided in the first transverse hole, and external threads 51 are provided on both sides of the latch 5. During the plugging process, the latch 5 can be rotated to make the internal thread and the external thread 51 cooperate with each other to fix the latch 5 on the liner 2.

[0071] Furthermore, a pin hole 52 is provided near the end of the pin 5 and on the outside of the external thread 51. Both ends of the pin 5 extend from the outer wall of the inner liner 2, so that the pin hole 52 is exposed to the inner liner 2. At the same time, straps are respectively connected to the pin holes 52. The straps on both sides are connected to each other after surrounding the arc-shaped outer wall of the inner liner 2, thereby fixing the pin 5 on the inner liner 2.

[0072] By means of threaded connection and binding with a strap, the latch 5 can be reliably mounted on the inner liner 2 , which helps prevent the latch 5 from loosening and ensures the interception and blocking effect on the gland member 3 .

[0073] The cable protection device of the present invention can be applied to railway cable troughs and has a good protective effect on railway signal cables, especially at the bending parts of the cable troughs, and can effectively protect the cables to prevent the cable trough cover from damaging the cables.

[0074] At the same time, the double-layer zipper 11 is used to assemble the protective bag 1, which effectively prevents the leakage of sand and avoids the impact on the drainage of the cable trough.

[0075] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0076] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cable protection device, characterized in that: include: A protective bag pressed onto the cable and filled with sand, the protective bag being spliced ​​by a zipper and extending along the laying direction of the cable; The protective bag is provided with an inner liner for filling sand, the outer wall of the inner liner is provided with a groove, a rotatable gland is installed on the groove, the gland includes an arc-shaped groove, and at least a portion of the cable is accommodated in the arc-shaped groove and the molded portion of the protective bag; The gland is located outside the inner liner and inside the protective bag. The protective bag has a certain amount of slack adjustment at the groove. The angle of the gland can be manually adjusted through the bag body of the protective bag, so as to facilitate shaping of the gland portion of the protective bag. The protective bags include a plurality of bags, each of which is provided with the inner liner, and the plurality of protective bags are connected by double-layer zippers; The protective bags include end protective bags, connection protective bags and bend protective bags, and the bend protective bags include arc-shaped protective bags or right-angle protective bags; A mounting bar protruding from the surface of the sinking groove is provided in the middle portion of the groove in the length direction. The mounting bar extends along the long axis direction of the liner, and the gland member is detachably mounted on the mounting bar.

2. The cable protection device according to claim 1, characterized in that The right-angle protection bag includes two inner liners, and the two inner liners are connected to each other through a beveled surface at the corner of the right-angle protection bag.

3. The cable protection device according to claim 1, characterized in that The inner lining is arranged in each of the protective bags, and the material of the inner lining includes a fire-retardant material, and the groove includes at least one groove arranged on the inner lining.

4. The cable protection device according to claim 1, characterized in that The inner liner includes an elliptical cylindrical structure capable of shaping the protective bag, and the groove includes a sink opened in the long axis direction of the inner liner, the width direction of the sink extends along the long axis direction of the inner liner, and the sink has at least a length along the axial direction of the inner liner.

5. The cable protection device according to claim 1, characterized in that The gland member includes a rotating disc, a connecting cylinder, and a cable claw of an integral structure. The arc-shaped groove is provided on the cable claw. The mounting bar is provided with first grooves for inserting the rotating disc at intervals. The first grooves include square grooves provided in the thickness direction of the mounting bar. The rotating disc is inserted into the square grooves, and the sidewall edges of the rotating disc are tangent to the inner groove walls of the first grooves. A second groove for inserting the connecting cylinder is provided on the side of the first groove. The second groove includes an open groove provided on the side of the first groove. The connecting cylinder extends into the opening of the second groove and is clamped on the open groove, while driving the rotating disc to be inserted into the first groove.

6. The cable protection device according to claim 5, characterized in that A latch is installed on the inner liner, and the latch is inserted into the mounting bar and can intercept and block the connecting cylinder in the second groove; The inner liner is provided with first transverse through holes at locations on both sides of the groove, and the mounting bar is provided with second transverse through holes at locations where the first groove is not provided. The first transverse through holes and the second transverse through holes are connected and arranged on the same straight line, and the extension direction of the straight line is parallel to the long axis direction of the inner liner; The second transverse hole is provided at a position where the second groove is close to the groove surface of the mounting strip where the first groove is provided.

7. The cable protection device according to claim 6, characterized in that External threads are provided on both sides of the latch pin, an internal thread matching the external threads is provided in the first transverse hole, a pin hole is provided near the end of the latch pin and on the outside of the external threads, both ends of the latch pin extend from the outer side wall of the inner liner, and the pin hole is exposed on the inner liner; The pin holes are respectively connected with straps, and the straps on both sides are butted against each other to fix the pin on the inner liner.

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