Cable joint protection device and cable joint protection method

Abstract

The present application relates to the technical field of power cable operation, and particularly relates to a cable joint protection device and a cable joint protection method. The cable joint protection method is applied to the cable joint protection device. The cable joint protection device comprises a mounting frame, a containing box, a sealing assembly and a locking assembly. The mounting frame can be fixedly installed with a tower. The containing box can be opened and closed. The containing box has a containing cavity for containing a cable joint. The containing cavity has two through holes for the cable to pass through. The containing box is detachably fixed with the mounting frame. The sealing assembly is arranged at the through hole. When the cable passes through the through hole, the sealing assembly can block the gap between the through hole and the cable. The locking assembly is installed at the mounting frame and located upstream of the containing box. The locking assembly has two through cavities for the cable to pass through. The cable joint reaches the containing cavity after passing through the through cavities and the through hole in sequence. The locking assembly can lock and fix the cable with the cavity wall of the through cavity.

Description

Technical Field

[0001] This invention relates to the field of power cable operation technology, and in particular to cable joint protection devices and methods. Background Technology

[0002] During the laying of power cables, it is often necessary to connect two cables together to meet the laying requirements.

[0003] In existing technologies, to improve the protection of the connection between two cables, a protective box is installed at the junction. Specifically, the cables are run through the protective box, and the connection between the two cables is located inside the protective box. However, existing protective boxes have poor sealing performance, making it easy for rainwater, insects, or other foreign objects to enter the protective box and damage the cables, resulting in unnecessary losses and increased production costs. Furthermore, in practical applications, situations where the cables are pulled are unavoidable. The connection between two connected cables has low strength, easily leading to breakage of the two cables, requiring them to be reconnected, significantly reducing work efficiency.

[0004] Therefore, there is an urgent need to invent cable joint protection devices and methods to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a cable joint protection device and a cable joint protection method to achieve sealed protection of the connection point of two cables connected together, and to improve the structural strength of the connection point of the two cables.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Cable joint protection device, including:

[0008] Mounting bracket, which can be installed and fixed to the iron tower;

[0009] A receiving box having a receiving cavity for accommodating a cable connector, the receiving box being openable and closable, the receiving cavity having two through-holes for cable passage, and the receiving box being detachably fixed to the mounting bracket;

[0010] A sealing assembly, disposed at the through-hole, is capable of sealing the gap between the through-hole and the cable when the cable passes through the through-hole; and

[0011] A locking assembly is installed at the mounting rack and upstream of the accommodating box, and has two threading cavities for the cable to pass through, and the cable joint reaches the accommodating cavity after passing through the threading cavities and the threading opening in sequence, and the locking assembly can lock and fix the cable and the cavity wall of the threading cavity.

[0012] Optionally, the accommodating box comprises:

[0013] A box body has the accommodating cavity, and the accommodating cavity is provided with an opening, and the threading opening is arranged at the side wall of the opening; and

[0014] A cover plate is detachably installed with the box body, and the cover plate is used for plugging the opening.

[0015] Optionally, the side wall of the box body is provided with a first outward extension part extending outward along the end face of the opening, the side wall of the cover plate is provided with a second outward extension part extending outward along the end face of the opening, the end face of the first outward extension part close to the second outward extension part is provided with a fixing blind hole, the second outward extension part is provided with a fixing through hole, the fixing blind hole and the fixing through hole are coaxially arranged, and the accommodating box further comprises a first bolt which is threadedly fixed with the fixing through hole and the fixing blind hole in sequence.

[0016] Optionally, the sealing assembly comprises:

[0017] A first elastic sealing ring, an inner cavity of the first elastic sealing ring is in abutment with the inner cavity wall of the threading opening, and the inner cavity of the first elastic sealing ring is used for the cable to pass through;

[0018] A first abutting piece and a second abutting piece, the side wall where the threading opening is arranged is provided with a through gap, the through gap penetrates the threading opening along the radial direction of the threading opening, and the first elastic sealing ring penetrates the through gap along the axial direction of the threading opening;

[0019] The first abutting piece and the second abutting piece are located in the through gap, and the first abutting piece and the second abutting piece are in abutment with the inner cavity wall of the first elastic sealing ring and the cable along the radial direction of the first elastic sealing ring from the two ends of the first elastic sealing ring which are oppositely arranged respectively.

[0020] Optionally, at least two clamping protrusions are arranged on the box body and are spaced apart along a preset direction, the clamping protrusions are located in the accommodating cavity, a clamping gap exists between adjacent two clamping protrusions, and the clamping gap is used for clamping and fixing the joint of the cable.

[0021] Optionally, the accommodating box further comprises:

[0022] A guide is accommodated in the accommodating cavity, and the guide can guide the bending deformation of the cable extending into the accommodating cavity.

[0023] As an option, the locking assembly comprises:

[0024] A first fastening part and a second fastening part are fastened together, the first fastening part is provided with a first accommodating groove near the end face of the second fastening part, the second fastening part is provided with a second accommodating groove near the end face of the first fastening part, and the first accommodating groove and the second accommodating groove form the through cavity in the fastened state of the first fastening part and the second fastening part; and

[0025] A locking part is provided with a first locking hole communicated with the first accommodating groove on the first fastening part, the locking part is threadedly fixed with the first locking hole, and the locking part can extend into the through cavity along the first locking hole and abut the cable against the cavity wall of the through cavity.

[0026] And / or, the second fastening part is provided with a second locking hole communicated with the second accommodating groove, the locking part is threadedly fixed with the second locking hole, and the locking part can extend into the through cavity along the second locking hole and abut the cable against the cavity wall of the through cavity.

[0027] As an option, the locking assembly further comprises:

[0028] An elastic protective sleeve is accommodated in the through cavity, the elastic protective sleeve is clamped between the cable and the inner cavity wall of the through cavity, and the locking part abuts against the elastic protective sleeve.

[0029] As an option, the mounting frame comprises:

[0030] A first mounting part is mounted and fixed with the iron tower, and the locking assembly is mounted in the first mounting part.

[0031] A second mounting part is connected with the first mounting part, and the cable joint protection device further comprises a waterproof cover, and the waterproof cover is mounted and fixed with the second mounting part.

[0032] A third mounting part is connected with the second mounting part, the accommodating box is mounted in the third mounting part, and the accommodating box and the third mounting part are accommodated in the waterproof cover.

[0033] A cable joint protection method is applied to the cable joint protection device as described above, and comprises the following steps:

[0034] S1, opening the accommodating box, extending two cables into the accommodating cavity along the through cavity and the through opening respectively;

[0035] S2, two said cable connection fixed;

[0036] S3, the accommodation box is closed;

[0037] S4, the sealing assembly is used respectively to the gap between two said cable and corresponding said through the mouth;

[0038] S5, the locking assembly is used respectively to two said cable and corresponding said through the cavity wall of the cavity locking fixed;

[0039] S6, the mounting bracket is installed with the iron tower fixed.

[0040] The beneficial effects of the application are:

[0041] The cable joint protection device provided by the application can realize the installation and fixation of the cable joint and the tower by installing the mounting bracket on the tower and installing the accommodation box for accommodating the cable joint on the mounting bracket, can make the joints of two cables respectively extend into the accommodation cavity along the through hole, ensure that the accommodation box can be opened and closed, facilitate the connection and fixation of the two cable joints in the accommodation cavity, seal the gap between the through hole and the cable by using the sealing assembly, realize the sealing and accommodation of the cable joint in the accommodation cavity under the closed state of the accommodation box, improve the protection of the cable joint, set the locking assembly on the mounting bracket, open the through cavity on the locking assembly, make the cable joint pass through the through cavity and the through hole in turn to reach the accommodation cavity, and lock the cable and the cavity wall of the through cavity, which can lock the two cables under the premise that the joints of the two cables are connected with each other, thereby improving the structural strength of the connection part of the two cables, solving the problem of broken line at the connection part of the two cables when the cables are pulled, avoiding repeated connection of the two cables, and improving the work efficiency.

[0042] The cable joint protection method provided by the application can realize the sealing and accommodation of the cable joint in the accommodation cavity under the closed state of the accommodation box, improve the protection of the cable joint, and lock the two cables under the premise that the joints of the two cables are connected with each other, thereby improving the structural strength of the connection part of the two cables, solving the problem of broken line at the connection part of the two cables when the cables are pulled, avoiding repeated connection of the two cables, and improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is the structure schematic view of the cable joint protection device provided by the embodiment one of the application;

[0044] Figure 2is a structural schematic view of the cable joint protection device provided by the embodiment one of the present application;

[0045] Figure 3 is an exploded schematic view of the cable joint protection device provided by the embodiment one of the present application;

[0046] Figure 4 is a structural schematic view of the containing box and the sealing assembly provided by the embodiment one of the present application;

[0047] Figure 5 is an exploded schematic view of the containing box and the sealing assembly provided by the embodiment one of the present application;

[0048] Figure 6 is Figure 5 is a local enlarged view of A in the figure;

[0049] Figure 7 is a structural schematic view of the locking assembly provided by the embodiment one of the present application;

[0050] Figure 8 is an exploded schematic view of the locking assembly provided by the embodiment one of the present application;

[0051] Figure 9 is a flow chart of the cable joint protection method provided by the embodiment two of the present application.

[0052] in the figure:

[0053] 100, containing box; 110, box body; 111, first extension part; 1111, fixed blind hole; 112, clamping protrusion; 113, through hole; 114, through gap; 115, second mounting hole; 116, containing cavity; 120, cover plate; 121, second extension part; 1211, fixed through hole; 130, guide piece; 131, limiting protrusion;

[0054] 200, locking assembly; 210, first buckling piece; 211, first containing groove; 212, first locking hole; 220, second buckling piece; 221, second containing groove; 230, locking piece; 240, elastic protective sleeve; 241, opening; 250, through cavity;

[0055] 300, sealing assembly; 310, first elastic sealing ring; 320, first abutting piece; 321, first matching groove; 322, first mounting hole; 330, second abutting piece; 331, second matching groove;

[0056] 400, mounting frame; 410, first mounting part; 420, second mounting part; 430, third mounting part. DETAILED DESCRIPTION

[0057] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present application will be further described below with reference to the drawings and through specific embodiments.

[0058] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the present application, unless explicitly defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0060] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0061] Embodiment one

[0062] In the process of laying power cable, in order to meet the laying requirements of the cable, it is often necessary to connect two cables together. In the prior art, in order to improve the protection of the connection of the two cables, a protection box is provided at the connection of the two cables. Specifically, the cable is arranged on the protection box, and the connection of the two cables is located inside the protection box. However, the sealing effect of the existing protection box is poor, which can easily lead to the entry of rainwater, insects or other foreign matters into the protection box to damage the cable, resulting in unnecessary loss and increasing production cost. In addition, in the actual application process, the cable will inevitably be pulled, and the connection of the two connected cables has low strength, which can easily lead to the problem of disconnection of the two connected cables, and the two cables need to be connected together again, which greatly reduces the work efficiency.

[0063] To solve the above problems, the present application provides a cable joint protection device as shown in the accompanying drawings. Figures 1-3 The cable joint protection device comprises a containing box 100, a locking assembly 200, a sealing assembly 300 and a mounting bracket 400. The mounting bracket 400 is fixedly installed on a tower. The containing box 100 has a containing cavity 116 for accommodating a cable joint. The containing box 100 is openable and closable. The containing cavity 116 has two through openings 113 for the cable to pass through. The containing box 100 is detachably fixed to the mounting bracket 400. The sealing assembly 300 is arranged at the through openings 113. When the cable passes through the through openings 113, the sealing assembly 300 can seal the gap between the through openings 113 and the cable. The locking assembly 200 is installed at the mounting bracket 400 and located upstream of the containing box 100. The locking assembly 200 has two through cavities 250 for the cable to pass through. The cable joint passes through the through cavities 250 and the through openings 113 in sequence and reaches the containing cavity 116. The locking assembly 200 can lock and fix the cable and the cavity wall of the through cavities 250.

[0064] The cable joint protection device is fixedly installed on the tower through the mounting bracket 400. The containing box 100 for accommodating the cable joint is installed on the mounting bracket 400. The cable joint and the tower can be fixedly installed. The two through openings 113 are arranged on the containing box 100 and communicated with the containing cavity 116. The joints of the two cables can extend into the containing cavity 116 through the through openings 113. The containing box 100 is openable and closable. The two cable joints in the containing cavity 116 can be conveniently connected and fixed. The gap between the through openings 113 and the cable is sealed by the sealing assembly 300. The containing cavity 116 can seal and contain the cable joint in the closed state of the containing box 100. The protection of the cable joint is improved. The locking assembly 200 is arranged on the mounting bracket 400. The through cavities 250 are arranged on the locking assembly 200. The cable joint passes through the through cavities 250 and the through openings 113 in sequence and reaches the containing cavity 116. The cable and the cavity wall of the through cavities 250 are locked and fixed. The two cables can be locked under the premise that the joints of the two cables are connected to each other. The structural strength of the connection of the two cables is improved. The problem of disconnection of the connection of the two cables when the two cables are pulled after being connected together is solved. The two cables are not repeatedly connected. The work efficiency is improved.

[0065] In an optional solution, the present application provides a cable joint protection device as shown in the accompanying drawings. Figure 3As shown, the mounting frame 400 comprises a first mounting portion 410, a second mounting portion 420 and a third mounting portion 430, the first mounting portion 410 is mounted and fixed with the tower, the locking assembly 200 is mounted on the first mounting portion 410; the second mounting portion 420 is connected with the first mounting portion 410, the cable joint protection device further comprises a waterproof cover, the waterproof cover is mounted and fixed with the second mounting portion 420, the third mounting portion 430 is connected with the second mounting portion 420, the containing box 100 is mounted on the third mounting portion 430, and the containing box 100 and the third mounting portion 430 are both contained in the waterproof cover. By splitting the mounting frame 400 into the first mounting portion 410, the second mounting portion 420 and the third mounting portion 430 connected with each other, mounting the first mounting portion 410 with the tower, mounting the second mounting portion 420 with the waterproof cover, and arranging the third mounting portion 430 and the containing box 100 mounted on the third mounting portion 430 in the waterproof cover, the effect of protecting the containing box 100 by the waterproof cover can be realized, and the protection of the cable joint is further improved.

[0066] As an optional solution, as shown in Figure 4 and Figure 5 As shown, the containing box 100 comprises a box body 110 and a cover plate 120, the box body 110 has a containing cavity 116, the containing cavity 116 is provided with an open mouth, a through hole 113 is arranged at the side wall of the open mouth, the cover plate 120 is detachably mounted with the box body 110, and the cover plate 120 is used for plugging the open mouth. By arranging the containing box 100 as the box body 110 and the cover plate 120 which are detachably mounted together, when it is needed to open the containing box 100 to connect the two cables in the containing cavity 116, the cover plate 120 can be directly opened, so that the cover plate 120 no longer plugs the open mouth, and when it is needed to close the containing box 100, the cover plate 120 can be mounted with the box body 110 together and plug the open mouth again.

[0067] Specifically, the side wall of the box body 110 is provided with a first extension part 111 extending outward along the open end face, the side wall of the cover plate 120 is provided with a second extension part 121 extending outward along the open end face, the end face of the first extension part 111 close to the second extension part 121 is provided with a fixed blind hole 1111, the second extension part 121 is provided with a fixed through hole 1211, the fixed blind hole 1111 and the fixed through hole 1211 are coaxially arranged, and the accommodating box 100 further includes a first bolt which is threadedly fixed with the fixed through hole 1211 and the fixed blind hole 1111 in sequence. By arranging the first extension part 111 extending outward along the open end face on the side wall of the box body 110, arranging the second extension part 121 extending outward along the open end face on the side wall of the cover plate 120, arranging the fixed blind hole 1111 on the first extension part 111 and the fixed through hole 1211 on the second extension part 121, and threadedly fixing the first bolt with the fixed through hole 1211 and the fixed blind hole 1111 in sequence, the detachable installation of the cover plate 120 and the box body 110 is realized, the fixing effect is good, the disassembly and assembly are convenient, and the subsequent maintenance and maintenance are facilitated.

[0068] To further improve the fixing effect of the box body 110 and the cover plate 120, the box body 110 is provided with a plurality of first extension parts 111, the cover plate 120 is provided with a plurality of second extension parts 121, the first extension parts 111 are arranged at intervals along the outer periphery of the box body 110, the first extension parts 111 correspond to the second extension parts 121 one by one, each first extension part 111 is provided with a fixed blind hole 1111, each second extension part 121 is provided with a fixed through hole 1211, and the accommodating box 100 has a plurality of first bolts, each first bolt is threadedly fixed with a fixed through hole 1211 and a fixed blind hole 1111.

[0069] It should be noted that in the embodiment, the box body 110 is provided with four first extension parts 111, the cover plate 120 is provided with four second extension parts 121, the accommodating box 100 includes four first bolts, each first extension part 111 is provided with a fixed blind hole 1111, each second extension part 121 is provided with a fixed through hole 1211, and each first bolt is threadedly fixed with a fixed through hole 1211 and a fixed blind hole 1111. In other embodiments, the number of first extension parts 111, second extension parts 121 and first bolts can be adjusted according to actual needs, as long as each first bolt is correspondingly arranged with the fixed blind hole 1111 in each first extension part 111 and the fixed through hole 1211 in each second extension part 121, and the embodiment is not limited specifically.

[0070] In combination Figures 4-6The specific structure of the sealing assembly 300 is described. The sealing assembly 300 comprises a first elastic sealing ring 310, a first abutting piece 320 and a second abutting piece 330, wherein the outer peripheral wall of the first elastic sealing ring 310 is tightly abutted against the inner cavity wall of the through hole 113, the inner cavity of the first elastic sealing ring 310 is provided for the cable to pass through, the side wall where the through hole 113 is located is provided with a through gap 114, the through gap 114 penetrates the through hole 113 along the radial direction of the through hole 113, the first elastic sealing ring 310 passes through the through gap 114 along the axial direction of the through hole 113, the first abutting piece 320 and the second abutting piece 330 are located in the through gap 114, and the first abutting piece 320 and the second abutting piece 330 are respectively tightly abutted against the inner cavity wall of the first elastic sealing ring 310 and the cable along the radial direction of the first elastic sealing ring 310 from the two ends of the first elastic sealing ring 310 which are oppositely arranged. By arranging the through gap 114 on the side wall of the box body main body 110 where the through hole 113 is arranged, the through gap 114 penetrates the through hole 113 along the radial direction of the through hole 113, and the first elastic sealing ring 310 passes through the through gap 114 along the axial direction of the through hole 113, so that the outer peripheral wall of the first elastic sealing ring 310 is tightly abutted against the inner cavity wall of the through hole 113. In combination with the cable passing through the inner cavity of the first elastic sealing ring 310, the first abutting piece 320 and the second abutting piece 330 in the through gap 114 are respectively tightly abutted against the inner cavity wall of the first elastic sealing ring 310 and the cable along the two ends of the first elastic sealing ring 310 which are oppositely arranged, so that the first elastic sealing ring 310 can fully block the gap between the first through hole 113 and the cable.

[0071] In addition, in order to further improve the abutting effect of the first abutting piece 320 and the second abutting piece 330 on the first elastic sealing ring 310, one end of the first abutting piece 320 close to the first elastic sealing ring 310 is provided with a first matching groove 321, one end of the second abutting piece 330 close to the first elastic sealing ring 310 is provided with a second matching groove 331, and the area surrounded by the first matching groove 321 and the second matching groove 331 is the same as the radial cross-sectional shape of the first elastic sealing ring 310, so that the first abutting piece 320 and the second abutting piece 330 can tightly abut against the one circumferential inner cavity wall of the first elastic sealing ring 310 and the cable, fully abut against the inner cavity wall of the first elastic sealing ring 310 and the cable, and improve the sealing effect.

[0072] In the present embodiment, the first abutting piece 320 is provided with a first mounting hole 322, and the box body main body 110 is provided with a second mounting hole 115. When the first abutting piece 320 tightly abuts the first elastic sealing ring 310 and the cable, the first mounting hole 322 and the second mounting hole 115 are coaxially communicated, and the sealing assembly 300 further comprises a second screw, which can be threadedly fixed with the first mounting hole 322 and the second mounting hole 115 in sequence, so as to realize the detachable fixing of the first abutting piece 320 and the box body main body 110.

[0073] To further improve the fixing effect of the first abutting member 320 and the box body 110, at least two first mounting holes 322 are formed on the first abutting member 320, and at least two second mounting holes 115 are formed on the box body 110. Each first mounting hole 322 is arranged in correspondence with one second mounting hole 115 and one second screw. It should be noted that in the present embodiment, two first mounting holes 322 are formed on the first abutting member 320, two second mounting holes 115 are formed on the box body 110, and the sealing assembly 300 has two second screws, each of which is arranged in correspondence with one first mounting hole 322 and one second mounting hole 115. In other embodiments, the specific number of first mounting holes 322, second mounting holes 115 and second screws can be adjusted as needed, as long as each first mounting hole 322 is arranged in correspondence with one second mounting hole 115 and one second screw. The present embodiment is not limited in this regard.

[0074] In the present embodiment, as shown in Figure 5 The second abutting member 330 is fixed to the cover plate 120, and when the cover plate 120 is fixed to the box body 110, the second abutting member 330 is fixed to the box body 110. Therefore, the second abutting member 330 does not need to be additionally provided with mounting holes to be fixed to the box body 110, thereby simplifying the structure of the second abutting member 330.

[0075] As an optional solution, the sealing assembly 300 further comprises a second elastic sealing ring (not shown in the figure), which is clamped between the box body 110 and the cover plate 120. By clamping the second elastic sealing ring between the box body 110 and the cover plate 120, the second elastic sealing ring can seal the gap between the box body 110 and the cover plate 120, thereby further ensuring the sealing of the accommodation cavity 116. It should be noted that in the present embodiment, the second elastic sealing ring is a rubber ring. The rubber ring has good elasticity, toughness and wear resistance, and has a long service life.

[0076] In an optional embodiment, as shown in Figure 5As shown, the box body 110 is provided with at least two clamping protrusions 112 arranged at intervals along a preset direction, the clamping protrusions 112 are located in the accommodating cavity 116, and there is a clamping gap between adjacent two clamping protrusions 112, which is used for clamping and fixing the joint of the cable. By arranging at least two clamping protrusions 112 at intervals along the preset direction in the accommodating cavity 116 of the box body 110, and clamping and fixing the joint of the cable by the clamping gap between adjacent two clamping protrusions 112, the clamping and fixing of the cable joint in the accommodating cavity 116 can be realized, the arbitrary movement of the cable joint in the accommodating cavity 116 is avoided, and the protection of the cable joint is improved. It should be noted that in the embodiment, the preset direction is the left-right direction. The specific number of the clamping protrusions 112 is determined by the number of cable cores in the cable, and each cable core is clamped and fixed in a clamping gap. In the embodiment, the cable has 23 cable cores, so 24 clamping protrusions 112 extending along the left-right direction are arranged in the accommodating cavity 116, and the 24 clamping protrusions 112 extending along the left-right direction together form 23 clamping gaps. In other embodiments, the specific direction of the preset direction and the number of clamping protrusions 112 can be adjusted as required, and the embodiment is not limited in particular.

[0077] In order to facilitate the storage and arrangement of the cable in the accommodating cavity 116, as shown, Figure 5 The accommodating box 100 further comprises a guide piece 130, wherein the guide piece 130 is accommodated in the accommodating cavity 116, and the guide piece 130 can provide guidance for the bending deformation of the cable extending into the accommodating cavity 116. When the cable extends into the accommodating cavity 116 along the through hole 113, the part of the cable extending into the accommodating cavity 116 will move along the guide piece 130, and then the cable will bend and deform along the guide piece 130, thereby achieving the storage and arrangement of the cable. It should be noted that in the embodiment, the guide piece 130 is in the shape of U, and the cable can bend and deform along the inner cavity wall of the U-shaped guide piece 130. In other embodiments, the specific shape of the guide piece 130 can be adjusted as required, and the embodiment is not limited in particular.

[0078] In addition, in the embodiment, the guide piece 130 is further provided with a limiting protrusion 131, the limiting protrusion 131 is arranged at one end of the guide piece 130 close to the opening, the limiting protrusion 131 extends along the end face of the opening, and the limiting protrusion 131 is used to limit the limit position of the movement of the cable towards the direction close to the opening, so that the cable is accommodated in the accommodating cavity 116, and the assembly of the cover plate 120 and the box body 110 is facilitated.

[0079] In combination with Figure 7 and Figure 8The specific structure of the locking assembly 200 is described as follows. The locking assembly 200 comprises a locking piece 230 and a first clamping piece 210 and a second clamping piece 220 clamped together. The first clamping piece 210 is provided with a first accommodating groove 211 near the end face of the second clamping piece 220. The second clamping piece 220 is provided with a second accommodating groove 221 near the end face of the first clamping piece 210. The first accommodating groove 211 and the second accommodating groove 221 form a through cavity 250 when the first clamping piece 210 and the second clamping piece 220 are clamped together. The first clamping piece 210 is provided with a first locking hole 212 communicated with the first accommodating groove 211. The locking piece 230 is threadedly fixed with the first locking hole 212. The locking piece 230 can extend into the through cavity 250 along the first locking hole 212 and abut the cable against the cavity wall of the through cavity 250. The second clamping piece 220 is provided with a second locking hole communicated with the second accommodating groove 221. The locking piece 230 is threadedly fixed with the second locking hole. The locking piece 230 can extend into the through cavity 250 along the second locking hole and abut the cable against the cavity wall of the through cavity 250. By clamping the first clamping piece 210 and the second clamping piece 220 together, the first accommodating groove 211 is arranged on the end face of the first clamping piece 210 near the second clamping piece 220, the second accommodating groove 221 is arranged on the end face of the second clamping piece 220 near the first clamping piece 210, the through cavity 250 is formed by the first accommodating groove 211 and the second accommodating groove 221, the first locking hole 212 is arranged on the first clamping piece 210 and communicated with the first accommodating groove 211, the second locking hole is arranged on the second clamping piece 220 and communicated with the second accommodating groove 221, the locking piece 230 can extend into the first accommodating groove 211 along the first locking hole 212 and extend into the second accommodating groove 221 along the second locking hole, and the cable in the through cavity 250 is abutted and fixed against the cavity wall of the through cavity 250 by the locking piece 230.

[0080] It should be noted that, in other embodiments, only the first locking hole 212 can be arranged on the first clamping piece 210 or only the second locking hole can be arranged on the second clamping piece 220, and the present embodiment is not limited in this regard.

[0081] To further improve the abutting effect of the cable against the cavity wall of the through cavity 250, at least two first locking holes 212 are arranged on the first clamping piece 210 in a spaced manner. Each first locking hole 212 is communicated with the first accommodating groove 211, and each first locking hole 212 is correspondingly arranged with a locking piece 230. It should be noted that, in the present embodiment, each first accommodating groove 211 is correspondingly arranged with two first locking holes 212. In other embodiments, the number of first locking holes 212 correspondingly arranged with the first accommodating groove 211 can be adjusted according to actual needs, and the present embodiment is not limited in this regard.

[0082] In addition, in the embodiment, the locking assembly 200 further comprises an elastic protective sleeve 240, wherein the elastic protective sleeve 240 is accommodated in the penetrating cavity 250, the elastic protective sleeve 240 is clamped between the cable and the inner cavity wall of the penetrating cavity 250, and the locking piece 230 abuts against the elastic protective sleeve 240. By arranging the elastic protective sleeve 240 in the penetrating cavity 250, the elastic protective sleeve 240 is sleeved on the outer periphery of the cable, so that the direct contact between the locking piece 230 and the cable is solved, and the protection of the cable is improved.

[0083] It should be noted that, in the embodiment, the elastic protective sleeve 240 is provided with an opening 241 in the axial direction thereof, and when the locking piece 230 abuts against the elastic protective sleeve 240, the elastic protective sleeve 240 can be quickly deformed under the action of the opening 241, so that the abutting effect of the locking piece 230 on the cable is improved.

[0084] Embodiment Two

[0085] The embodiment provides a cable joint protection method. As shown in the figure, the cable joint protection method is applied to the cable joint protection device, and comprises the following steps: Figure 9

[0086] S1, opening the accommodating box 100, and extending two cables into the accommodating cavity 116 along the penetrating cavity 250 and the penetrating opening 113 respectively;

[0087] S2, connecting and fixing the two cables;

[0088] S3, closing the accommodating box 100;

[0089] S4, using the sealing assembly 300 to seal the gap between the two cables and the corresponding penetrating opening 113 respectively;

[0090] S5, using the locking assembly 200 to lock and fix the two cables and the cavity wall of the corresponding penetrating cavity 250 respectively;

[0091] S6, fixing the mounting rack 400 and the iron tower.

[0092] The cable joint protection method can realize the sealing and accommodation of the accommodating cavity 116 to the cable joint in the closed state of the accommodating box 100 by applying the above-mentioned cable joint protection device, the protection of the cable joint is improved, the cable and the cavity wall of the penetrating cavity 250 are locked and fixed, the two cables can be locked under the premise that the joints of the two cables are connected with each other, and then the structural strength of the connection part of the two cables is improved, so that the problem of disconnection of the connection part of the two cables during traction of the cable is solved. The problem of repeatedly connecting the two cables is avoided, and the work efficiency is improved.

[0093] ​Obviously, the above embodiments of the present application are merely example for clearly explaining the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. Cable joint protection device, characterized in that The utility model relates to a cable joint sealing device, which comprises: a mounting frame (400) capable of being fixedly installed with a tower; a containing box (100) having a containing cavity (116) for containing a cable joint, the containing box (100) being capable of being opened and closed, the containing cavity (116) having two threading openings (113) for threading a cable, the containing box (100) being detachably fixed with the mounting frame (400); a sealing assembly (300) arranged at the threading opening (113), the sealing assembly (300) comprising a first elastic sealing ring (310), a first abutting member (320), and a second abutting member (330), the outer peripheral wall of the first elastic sealing ring (310) being tightly abutted against the inner cavity wall of the threading opening (113), and the inner cavity of the first elastic sealing ring (310) being threaded by the cable; a through gap (114) is arranged in the side wall of the threading opening (113), the through gap (114) penetrating the threading opening (113) in the radial direction of the threading opening (113), and the first elastic sealing ring (310) penetrates the through gap (114) in the axial direction of the threading opening (113); the first abutting member (320) and the second abutting member (330) are located in the through gap (114), the first abutting member (320) and the second abutting member (330) being respectively arranged at two opposite ends of the first elastic sealing ring (310) and tightly abutting the inner cavity wall of the first elastic sealing ring (310) against the cable in the radial direction of the first elastic sealing ring (310), and when the cable is threaded through the threading opening (113), the sealing assembly (300) can seal the gap between the threading opening (113) and the cable; and a locking assembly (200) installed at the mounting frame (400) and located upstream of the containing box (100), the locking assembly (200) having two threading cavities (250) for threading the cable, the cable joint reaching the containing cavity (116) after sequentially passing through the threading cavities (250) and the threading opening (113), and the locking assembly (200) being capable of locking and fixing the cable against the cavity wall of the threading cavities (250). The containing box (100) comprises:

2. The cable splice protector of claim 1, wherein, a box body (110) having the containing cavity (116), the containing cavity (116) being provided with an open mouth, and the threading opening (113) being arranged at the side wall of the open mouth; and a cover plate (120) detachably installed with the box body (110), the cover plate (120) being used for sealing the open mouth. ​ 3. The cable splice protector of claim 2, wherein, The side wall of the box body (110) is provided with a first extension part (111) extending outward along the end face of the opening, the side wall of the cover plate (120) is provided with a second extension part (121) extending outward along the end face of the opening, the end face of the first extension part (111) close to the second extension part (121) is provided with a fixing blind hole (1111), the second extension part (121) is provided with a fixing through hole (1211), the fixing blind hole (1111) and the fixing through hole (1211) are coaxially arranged, and the accommodating box (100) further comprises a first bolt which is threadedly fixed with the fixing through hole (1211) and the fixing blind hole (1111) in sequence.

4. The cable splice protector of claim 2, wherein, The box body (110) is provided with at least two clamping protrusions (112) arranged at intervals in a preset direction, the clamping protrusions (112) are located in the accommodating cavity (116), and a clamping gap exists between adjacent two clamping protrusions (112), and the clamping gap is used for clamping and fixing the joint of the cable.

5. The cable splice protector of claim 4, wherein, The accommodating box (100) further comprises: A guide piece (130) accommodated in the accommodating cavity (116), the guide piece (130) can provide guidance for the bending deformation of the cable extending into the accommodating cavity (116).

6. A cable joint protection device according to any one of claims 1 to 5, characterised in that, The locking assembly (200) comprises: A first clamping piece (210) and a second clamping piece (220) clamped together, the first clamping piece (210) is provided with a first accommodating groove (211) at the end face close to the second clamping piece (220), the second clamping piece (220) is provided with a second accommodating groove (221) at the end face close to the first clamping piece (210), and the first accommodating groove (211) and the second accommodating groove (221) form the penetrating cavity (250) in the state of clamping fixation of the first clamping piece (210) and the second clamping piece (220); and A locking piece (230), the first clamping piece (210) is provided with a first locking hole (212) in communication with the first accommodating groove (211), the locking piece (230) is threadedly fixed with the first locking hole (212), and the locking piece (230) can extend into the penetrating cavity (250) along the first locking hole (212) and abut the cable against the cavity wall of the penetrating cavity (250); And / or, the second clamping piece (220) is provided with a second locking hole in communication with the second accommodating groove (221), the locking piece (230) is threadedly fixed with the second locking hole, and the locking piece (230) can extend into the penetrating cavity (250) along the second locking hole and abut the cable against the cavity wall of the penetrating cavity (250).

7. A cable splice protector according to claim 6, characterised in that, The locking assembly (200) further comprises: An elastic protective sleeve (240) is accommodated in the penetrating cavity (250), the elastic protective sleeve (240) is clamped between the cable and the inner cavity wall of the penetrating cavity (250), and the locking member (230) abuts against the elastic protective sleeve (240).

8. A cable joint protection device according to any one of claims 1 to 5, characterised in that, The mounting rack (400) comprises: A first mounting portion (410) is mounted and fixed with the iron tower, and the locking assembly (200) is mounted on the first mounting portion (410); A second mounting portion (420) is connected with the first mounting portion (410), and the cable joint protection device further comprises a waterproof cover, and the waterproof cover is mounted and fixed with the second mounting portion (420); and A third mounting portion (430) is connected with the second mounting portion (420), the accommodating box (100) is mounted on the third mounting portion (430), and the accommodating box (100) and the third mounting portion (430) are accommodated in the waterproof cover.

9. A method of protecting a cable joint, characterised in that, The cable joint protection device is applied to any one of claims 1-8, comprising the following steps: S1, open the accommodating box (100), and extend two cables into the accommodating cavity (116) along the penetrating cavity (250) and the penetrating opening (113) respectively; S2, connect and fix the two cables; S3, close the accommodating box (100); S4, use the sealing assembly (300) to seal the gap between the two cables and the corresponding penetrating opening (113) respectively; S5, use the locking assembly (200) to lock and fix the two cables and the cavity wall of the corresponding penetrating cavity (250) respectively; S6, mount and fix the mounting rack (400) with the iron tower.

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