Cable joint box

Abstract

The utility model provides a kind of cable jointing box, it is related to cable jointing appliance technical field, including two sheaths and two sealing structures, two the sheaths are combined to form sleeve, two the sealing structures are located at the both ends of sleeve respectively, for the sealing of jointing box;When cable jointing, the joint part of cable jointing is located in the inner cavity of the sleeve formed;Each the sealing structure includes two symmetrical sealing plugs, two sealing plugs on the same side are combined to form the perforation through with inner cavity;At least one glue injection port is set on one of the sheaths, and a sealing cover is installed on the glue injection port;The inner wall of the sleeve is provided with a plurality of projections distributed in the circumference, and the circumference of each sealing plug is provided with an annular groove matched with the projection, which solves the problem that the sheath is difficult to ensure the joint stability and environmental sealing performance when sealing the cable jointing part.

Description

Technical Field

[0001] This utility model relates to the technical field of cable splicing tools, specifically to a cable splicing box. Background Technology

[0002] Cable splicing is a technical process that extends a cable line segment by segment through physical connection and sealing protection. Its core process includes three stages: cable pretreatment, cable core splicing, and sheath restoration. Before splicing, the cable shape needs to be adjusted through steps such as untwisting and cable splitting, and the core wires are arranged according to the wire sequence color. The core wire conduction is achieved by using modular or snap-fit ​​connectors.

[0003] The sheathing used for cable splicing generally employs cold-shrink / heat-shrink electrical accessories or snap-on end caps. However, when existing sheaths are used to seal the cable splice, they cannot ensure the stability of the joint after splicing and its airtightness with the environment, resulting in poor cable splicing performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a cable splice box that solves the problem that when existing sheaths seal the cable splice section, they cannot ensure the stability of the joint after splicing and the airtightness with the environment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] In this utility model, the cable splice box includes two sheath shells and two sealing structures. The two sheath shells are combined to form a sleeve, and the two sealing structures are located at both ends of the sleeve for sealing the splice box.

[0009] When splicing cables, the joint portion of the cable splice is located inside the cavity of the formed sleeve;

[0010] Each of the sealing structures includes two symmetrically arranged sealing plugs, and the two sealing plugs on the same side are combined to form a perforation that communicates with the inner cavity;

[0011] One of the sheaths has at least one glue injection port, and a sealing cap is installed on the glue injection port;

[0012] The inner wall of the sleeve is provided with a plurality of circumferentially distributed protrusions, and each of the sealing plugs is provided with an annular groove in the circumferential direction that matches the protrusions. Each of the sealing plugs is installed on the corresponding protective shell through the annular groove and the plurality of protrusions.

[0013] Furthermore, each of the sheath shells has multiple flow grooves axially formed;

[0014] Each of the flow channels is located between two corresponding protrusions at one end.

[0015] Furthermore, each of the sheath shells has multiple threaded holes along the axial direction;

[0016] When the two sheath shells are joined together, they are fixed by bolts passing through the corresponding two threaded holes.

[0017] Furthermore, each of the sheath shells is provided with two flow grooves in the axial direction, and the two flow grooves are respectively located on both sides of the corresponding sheath shell.

[0018] Each of the two flow channels is in communication with the inner cavity and is partially coplanar with the threaded hole, so that the glue flowing through the glue injection port can flow to the mating surface of the two sheaths for reinforcement.

[0019] Furthermore, each of the two flow channels communicates with the annular groove on the sealing plug after installation.

[0020] Furthermore, each sheath shell is integrally molded;

[0021] Each sealing plug is molded in one piece.

[0022] Furthermore, the sealing cap and the glue injection port on the protective shell are detachably fixed.

[0023] (III) Beneficial Effects

[0024] This utility model provides a cable splice box. Compared with the prior art, it has the following advantages:

[0025] By setting the splice box as two sheaths and two sealing structures, and setting each sealing structure as a combination of two sealing plugs, the installation of the splice box is facilitated, thereby protecting the cable splice section.

[0026] By using the protrusions on the sheath to limit the corresponding sealing plug, the stability of the sealing plug installation is ensured, the tightness between the sealing plug and the sheath and the sealing degree of the sealing plug to the sleeve formed after merging are improved, and the problem of the existing sheath being unable to ensure the connection stability and environmental sealing of the joint when sealing the cable splice is solved.

[0027] Meanwhile, an injection port is opened on the splice box, and glue is injected into the inner cavity through the injection port. The injected glue fills the inner cavity, so that the cable splice part located in the inner cavity is fixed relative to the splice box. The whole operation process is simple and convenient, which further enhances the stability of the splice part inside the splice box, effectively reduces the problem that the cable splice part is prone to loosening, resulting in poor contact of the cable splice part, and improves the use effect after the cable splice. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a structural schematic diagram of a cable splice box;

[0030] Figure 2 A 3D view of the connector box;

[0031] Figure 3 A three-dimensional view of the structure of the connector box;

[0032] Figure 4 This is a structural diagram of the connector box;

[0033] Figure 5 A perspective view of the sealing plug installed on the sheath;

[0034] Figure 6 for Figure 5 A perspective view of one side of the inner sheath without the sealing plug installed.

[0035] Figure label:

[0036] 1. Sheath; 10. Injection port; 11. Sealing cap; 12. Threaded hole; 13. Flow groove one; 14. Flow groove two; 15. Protrusion; 2. Sealing plug; 20. Annular groove; 3. Perforation. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] This application provides a cable splice box that solves the problem that existing sheaths cannot ensure the stability of the splice and the airtightness with the environment when sealing the cable splice. It ensures the splice stability and environmental airtightness of the cable splice.

[0039] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0040] Example:

[0041] like Figures 1-3 As shown, a cable splice box includes two sheath shells 1 and two sealing structures. The two sheath shells 1 are joined together to form a sleeve. The two sealing structures are located at both ends of the sleeve and are used to seal the splice box.

[0042] When splicing cables, the joint portion of the cable splice is located inside the cavity of the formed sleeve;

[0043] Each of the sealing structures includes two symmetrically arranged sealing plugs 2, and the two sealing plugs 2 located on the same side are merged to form a perforation 3 that communicates with the inner cavity;

[0044] One of the sheath shells 1 is provided with at least one glue injection port 10, and a sealing cap 11 is installed on the glue injection port 10;

[0045] The inner wall of the sleeve is provided with a plurality of circumferentially distributed protrusions 15, and each of the sealing plugs 2 is provided with an annular groove 20 that matches the protrusions 15 in the circumferential direction. Each of the sealing plugs 2 is installed on the corresponding protective shell 1 through the annular groove 20 and the plurality of protrusions 15.

[0046] The sealing cap 11 is detachably fixed to the glue injection port 10 on the protective shell 1;

[0047] Specifically, the sealing cap 11 is a rubber stopper or other form to seal the glue inlet 10.

[0048] By setting the splice box as two sheaths 1 and two sealing structures, and setting each sealing structure as two sealing plugs 2, the installation of the splice box is facilitated, thereby protecting the cable splice section.

[0049] The protrusion 15 on the sheath shell 1 is used to limit the corresponding sealing plug 2, ensuring the stability of the installation of the sealing plug 2, improving the tightness between the sealing plug 2 and the sheath shell 1, and the sealing degree of the sealing plug 2 to the sleeve formed after merging. This solves the problem that when the existing sheath seals the cable splice, it is difficult for the sheath to ensure the splice stability and environmental sealing of the joint.

[0050] Meanwhile, an injection port 10 is provided on the splice box, and glue is injected into the inner cavity through the injection port 10. The injected glue fills the inner cavity, so that the cable splice part located in the inner cavity is fixed relative to the splice box. The whole operation process is simple and convenient, which further enhances the stability of the splice part in the splice box, effectively reduces the problem that the cable splice part is prone to loosening, resulting in poor contact of the cable splice part, and improves the use effect after the cable splice.

[0051] The two sheath shells 1 are detachably and fixedly connected.

[0052] Specifically, each of the sheath shells 1 has multiple threaded holes 12 along the axial direction;

[0053] When the two sheath shells 1 are joined together, they are fixed by bolts passing through the corresponding two threaded holes 12.

[0054] like Figure 3 As shown, each of the sheath shells 1 has multiple flow grooves 13 axially.

[0055] The end of each of the flow channels 13 is located between the corresponding two protrusions 15.

[0056] By opening multiple axially distributed flow grooves 13 on the sheath shell 1, with the ends of the flow grooves 13 located between two corresponding protrusions 15, the glue injected through the glue injection port 10 flows along the flow grooves 13 to this point and is glued to the sealing plug 2 circumferentially after installation, thereby further improving the fixation of the sealing plug 2 on the sheath shell 1.

[0057] like Figures 3-6 As shown, each of the sheath shells 1 also has two flow grooves 14 in the axial direction, and the two flow grooves 14 are respectively located on both sides of the corresponding sheath shell 1.

[0058] Each of the aforementioned flow channels 14 is in communication with the inner cavity and is partially coplanar with the threaded hole 12, so that the glue flowing through the glue injection port 10 can flow to the mating surface of the two sheath shells 1 to reinforce the two sheath shells 1.

[0059] Specifically, each sheath shell 1 is integrally molded;

[0060] Each sealing plug 2 is integrally molded.

[0061] like Figure 4 As shown, each of the flow channels 14 communicates with the annular groove 20 on the sealing plug 2 after installation.

[0062] By setting the flow groove 2 14 to be connected to the annular groove 20, while ensuring that the injected glue flows to the mating surface of the two sheath shells 1 for reinforcement, the reinforcement between the sealing plug 2 and the sheath shell 1 can be further strengthened, and the connection stability at the joint can be improved.

[0063] During operation, the two cable ends that need to be spliced ​​are first spliced ​​according to the splicing process (the cable splicing process is the existing process). After the splicing is completed, the spliced ​​part of the cable is wrapped with splicing material. Therefore, the overall diameter of the cable contact part is larger than that of the original cable.

[0064] Afterwards, the splice box is used to protect the cable after splicing is completed;

[0065] When using a junction box to protect the cable splice, select a sealing plug 2 of a model that matches the cable diameter;

[0066] After selecting the corresponding sealing plug 2, install the four sealing plugs 2 to the ends of the corresponding protective shell 1 respectively; during installation, the sealing plug 2 is installed through the annular groove 20 on the sealing plug 2 and the protrusion 15 on the corresponding protective shell 1, and the protrusion 15 on the protective shell 1 is used to limit the sealing plug 2.

[0067] Next, the spliced ​​portion of the cable is placed in the middle of one of the sheath shells 1. At this time, the regular portion of the cable extends through the groove on the sealing plug 2 to the outside of the sheath shell 1.

[0068] Then, another sheath shell 1 with sealing plug 2 is assembled with the sheath shell 1 containing the cable and fixed by bolts passing through the corresponding threaded holes 12. At this time, the perforation 3 formed by the two sealing plugs 2 on the same side after being merged secures the regular part of the cable, and a sealed space is formed inside the splice box.

[0069] Finally, the glue is injected through the glue injection port 10 into the inner cavity formed by the merging of the two sheath shells 1, which is used to glue the cable splice placed in the inner cavity, thereby further fixing the cable splice to the sheath shell 1.

[0070] During the adhesive injection and curing process, the adhesive flows through the flow channel 13 to the sealing plug 2 and comes into contact with the sealing plug 2, thereby achieving circumferential curing of the sealing plug 2 and the sheath 1 and enhancing the stability between the sealing plug 2 and the sheath 1.

[0071] Meanwhile, during the adhesive injection and curing process, the adhesive flows through the second flow channel 14 to the sealing plug 2 and comes into contact with it. The adhesive also flows through the second flow channel 14 to the mating area of ​​the two sheath shells 1, achieving circumferential curing of the sealing plug 2 with the sheath shell 1 and curing of the mating surfaces of the two sheath shells 1. This enhances the overall stability and sealing of the splice box installation and helps improve the performance of the cable after splicing.

[0072] In summary, compared with existing technologies, it has the following beneficial effects:

[0073] 1. By setting the splice box as two sheaths 1 and two sealing structures, and setting each sealing structure as two sealing plugs 2, the installation of the splice box is facilitated, thereby protecting the cable splice part.

[0074] The protrusion 15 on the sheath shell 1 is used to limit the corresponding sealing plug 2, ensuring the stability of the installation of the sealing plug 2, improving the tightness between the sealing plug 2 and the sheath shell 1, and the sealing degree of the sealing plug 2 to the sleeve formed after merging. This solves the problem that when the existing sheath seals the cable splice, it is difficult for the sheath to ensure the splice stability and environmental sealing of the joint.

[0075] Meanwhile, an injection port 10 is provided on the splice box, and glue is injected into the inner cavity through the injection port 10. The injected glue fills the inner cavity, so that the cable splice part located in the inner cavity is fixed relative to the splice box. The whole operation process is simple and convenient, which further enhances the stability of the splice part in the splice box, effectively reduces the problem that the cable splice part is prone to loosening, resulting in poor contact of the cable splice part, and improves the use effect after the cable splice.

[0076] 2. By opening multiple axially distributed flow grooves 13 on the sheath shell 1, and the ends of the flow grooves 13 are located between two corresponding protrusions 15, the glue injected through the glue injection port 10 flows along the flow grooves 13 to this point and is glued to the sealing plug 2 circumferentially after installation, thereby further improving the fixation of the sealing plug 2 on the sheath shell 1.

[0077] 3. By setting up a flow channel 2 14, the glue flowing through the glue injection port 10 is allowed to flow to the mating surface of the two sheath shells 1, thereby reinforcing the two sheath shells 1.

[0078] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0079] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cable splice box, characterized in that, It includes two sheath shells (1) and two sealing structures. The two sheath shells (1) are combined to form a sleeve. The two sealing structures are located at both ends of the sleeve and are used to seal the connecting box. When splicing cables, the joint portion of the cable splice is located inside the cavity of the formed sleeve; Each of the sealing structures includes two symmetrically arranged sealing plugs (2), and the two sealing plugs (2) located on the same side are combined to form a perforation (3) that communicates with the inner cavity; One of the sheath shells (1) is provided with at least one glue injection port (10), and a sealing cap (11) is installed on the glue injection port (10); The inner wall of the sleeve is provided with a plurality of circumferentially distributed protrusions (15), and each of the sealing plugs (2) is provided with an annular groove (20) that matches the protrusions (15) in the circumferential direction. Each of the sealing plugs (2) is installed on the corresponding protective shell (1) through the annular groove (20) and the plurality of protrusions (15).

2. The cable splice box as described in claim 1, characterized in that, Each of the sheath shells (1) is provided with multiple flow grooves (13) along its axial direction; The end of each of the flow channels (13) is located between the corresponding two protrusions (15).

3. A cable splice box as described in claim 1 or 2, characterized in that, Each of the sheath shells (1) has multiple threaded holes (12) along the axial direction; When the two sheath shells (1) are joined together, they are fixed by bolts passing through the corresponding two threaded holes (12).

4. A cable splice box as described in claim 3, characterized in that, Each of the sheath shells (1) is also provided with two flow grooves (14) in the axial direction, and the two flow grooves (14) are located on both sides of the corresponding sheath shell (1); Each of the two flow channels (14) is in communication with the inner cavity and is partially coplanar with the threaded hole (12) so that the glue flowing through the glue injection port (10) can be reinforced at the mating surface of the two sheaths (1).

5. A cable splice box as described in claim 4, characterized in that, Each of the two flow channels (14) communicates with the annular groove (20) on the sealing plug (2) after installation.

6. A cable splice box as described in claim 1, characterized in that, Each sheath shell (1) is integrally molded; Each sealing plug (2) is integrally molded.

7. A cable splice box as described in claim 1, characterized in that, The sealing cap (11) and the glue injection port (10) on the protective shell (1) are detachably fixed.

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