Double-core connection box

Abstract

The utility model discloses a double-core connection box, belongs to the technical field of communication cable connection structures, and aims to provide a double-core connection box which is convenient to disassemble and assemble and does not pollute a cable core, the double-core connection box comprises a wiring base, and a wiring cavity extending downwards is formed in the upper surface of the wiring base; the rear edge of the upper surface of the wiring base is rotationally connected with an upper sealing cover through a hinge structure, the upper surface of the wiring base is provided with an upper boss located outside the wiring cavity, the upper surface of the upper boss is provided with a threading groove extending downwards, the threading groove is communicated with the outer side face of the wiring base and the wiring cavity, and the side face, opposite to the wiring base, of the upper sealing cover is provided with a sealing groove. The wiring base restrains the upper sealing cover through a buckle on the front face. According to the application, the wiring cavity with the plurality of separated guide grooves is arranged on the wiring base, so that the wire cores can be correspondingly connected, mutually isolated and not mutually influenced, the movable upper cover is utilized to shield the wiring cavity, and the matching structure of the upper boss and the sealing groove is matched to realize sealing, so that good connection stability and reliability can be achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of communication cable connection structures, in particular to a double-core joint box. BACKGROUND

[0002] A traditional connection mode of a communication cable is to use adhesive tape, which can keep the connection stability, but the adhesive tape is prone to aging and is not easy to disassemble, and the adhesive tape is prone to leaving adhesive pollution on the wire core. In order to ensure the reliability of signal transmission of the wire core, the polluted part needs to be cut off, and then the wire is reconnected, which causes the loss of the length of the wire body. SUMMARY

[0003] The application aims to provide a double-core joint box which is convenient to disassemble and does not pollute the wire core.

[0004] To achieve the above purpose, the application provides a double-core joint box, which comprises a wiring base, a wiring cavity extending downward is formed in the upper surface of the wiring base, a upper cover is rotatably connected to the rear edge of the upper surface of the wiring base through a hinge structure, the upper surface of the wiring base has an upper boss outside the wiring cavity, a threading groove extending downward is formed in the upper surface of the upper boss, the threading groove is in communication with the outer side surface of the wiring base and the wiring cavity, a close-fitting groove is formed in the side surface of the wiring base opposite to the upper cover, and the close-fitting groove is adapted to be fitted with the upper boss, and the wiring base restrains the upper cover through the buckle on the front surface to ensure the stability of the joint box after the cover is closed.

[0005] As a preferred, a sunken groove is formed in the four corners of the upper surface of the wiring base, a connecting hole in communication with the sunken groove is formed in the corner of the lower surface of the wiring base, and the caliber of the connecting hole is smaller than that of the sunken groove, so that only the rod part of the bolt can pass through the connecting hole 208, and the end part of the bolt with a larger diameter can only be left in the sunken groove with a larger caliber, thereby realizing the stable restraint of the wiring base.

[0006] As a preferred, a give-way groove is formed in the side surface of the wiring base opposite to the upper cover, and the give-way groove has two parts close to the left and right sides of the upper cover and can be aligned with the two groups of sunken grooves 202.

[0007] As a preferred, the rear side surface of the upper cover has an upper rib extending to the upper surface, and the rear side surface of the wiring base has a lower rib, so that the whole joint box has light weight and structural strength, and has a large outer surface area for heat dissipation.

[0008] As a preferred, the front of the wiring base has opposite limiting plates, the limiting plates have a fixed shaft between them, the buckle includes a side pull plate, the bottom of the side pull plate has a hook, which is adapted to form a rotating pair with the fixed shaft, and the buckle can be clamped and released by rotation.

[0009] As a preferred, the upper surface of the upper cover is provided with a clamping groove, and the top of the side pull plate is further provided with a vertical top hook plate, which is adapted to engage with the clamping groove, thereby increasing the contact area of the buckle and the upper cover and improving the clamping stability.

[0010] As a preferred, the clamping groove extends to the front of the upper cover and is adapted to engage with the side pull plate, and the inner side of the buckle is provided with a reinforcing rib extending from the inner side of the side pull plate to the inner side of the top hook plate, thereby ensuring the structural stability of the buckle.

[0011] As a preferred, the outer side of the wiring base is further provided with an extension support plate located below the threading groove, which is used to provide additional support force for the wire body.

[0012] Compared with the prior art, the application has the following advantages:

[0013] (1) By providing a wiring cavity with multiple separate guide grooves on the wiring base, the wire cores can be connected, isolated and unaffected each other, the wiring cavity is shielded by the movable upper cover, and the sealing is realized by the cooperation of the upper boss and the tight groove, thereby achieving good connection stability and reliability.

[0014] (2) Since no adhesive tape is used as the connection and sealing structure, the wire cores will not be contaminated, and the cover splice box is convenient to install and disassemble, and the connected wire body can maintain the original length after multiple assembly and disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the unfolded state of the double-core splice box.

[0016] Figure 2 is a perspective view of the double-core splice box Figure 1 is a partial enlarged view of A of the double-core splice box.

[0017] Figure 3 is a plan view of the double-core splice box.

[0018] Figure 4 is a plan view of the double-core splice box.

[0019] Figure 5 is a plan view of the double-core splice box.

[0020] In the figure: 1, upper cover; 101, close groove; 102, let place groove; 103, buckle groove; 104, upper rib; 2, wiring base; 201, wiring cavity; 202, sink groove; 203, limit plate; 204, fixed shaft; 205, extension supporting plate; 206, upper boss; 207, threading groove; 208, connecting hole; 209, lower rib; 12, hinged structure; 3, buckle; 301, side pull plate; 302, top hook plate; 303, hook; 304, reinforcing rib. DETAILED DESCRIPTION

[0021] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that, without conflict, the following described embodiments or technical features can be combined in any manner to form new embodiments.

[0022] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. Indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0024] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] As Figures 1-5The dual-core connector shown includes a fixed connector base 2. The upper surface of the connector base 2 has a downwardly extending connector cavity 201. The connector cavity 201 has multiple partitioned cavity structures, allowing bare wire connections of the cables to be connected without the need for compatible connectors. The rear side of the connector base 2 has lower ribs 209, which not only ensure the structural strength of the connector base 2 with a lighter weight, but also increase the heat dissipation area of ​​the connector base 2. The four corners of the upper surface of the connector base 2 have recessed grooves 202, which are not connected to the inside of the connector cavity 201. The corners of the lower surface of the connector base 2 have connecting holes 208 that communicate with the recessed grooves 202, allowing bolts and other connecting parts to pass through and fix the connector base 2 to the wall or other mounting surface. The diameter of the connecting hole 208 is smaller than the diameter of the recessed groove 202. The recessed groove 202 can accommodate larger bolt end structures, while providing sufficient space for wrenches to be inserted.

[0026] The upper surface of the terminal base 2 is rotatably connected to the upper cover 1 via a hinge structure 12. The upper cover 1 can be fastened onto the terminal base 2 to cover the exposed wires inside the junction box. The side of the upper cover 1 facing the terminal base 2 has a relief groove 102 to accommodate bolts and other connecting parts. After the junction box is closed, it can effectively prevent bolts and other connecting parts from being lost. There are two relief grooves 102, which are located near the left and right sides of the upper cover 1 respectively. After the junction box is closed, they will be aligned with the recessed groove 202. The rear side of the upper cover 1 has an upper rib 104 extending to the upper surface, which is also used to improve the structural strength of the lightweight upper cover 1 and increase the external heat dissipation area.

[0027] The upper surface of the junction box 2 has two upper bosses 206 located outside the junction cavity 201. The two upper bosses 206 are symmetrical about the junction cavity 201. The upper surface of the upper bosses 206 has a downward extending cable groove 207 for the complete cable to pass through. The cable groove 207 connects the outer side of the junction box 2 and the junction cavity 201. The cable is usually sunk downward from the upper end of the cable groove 207, and the exposed end of the cable is completely located inside the junction cavity 201. The outer side of the junction box 2 also has an extension plate 205 located below the cable groove 207. In fact, the extension plate 205 is located between the two recessed grooves 202 to provide support for the cable outside the junction box. The upper cover 1 has a sealing groove 101 on the side facing the junction box 2, which fits perfectly with the upper bosses 206, forming an annular sealing surface at both ends of the cable connection, which has a good anti-leakage effect.

[0028] The wiring base 2 is constrained by the snap fastener 3 on the front. Specifically, the front of the wiring base 2 has a limiting plate 203 facing each other. There are two sets of limiting plates 203, and a fixed shaft 204 is provided between each set of limiting plates 203. The snap fastener 3 includes a side pull plate 301. The bottom of the side pull plate 301 has a hook 303 for fastening to the outside of the fixed shaft 204 and forming a rotating pair. The upper surface of the upper cover 1 is provided with a fastening groove 103. The top of the side pull plate 301 also has a vertical top hook plate 302, which can engage with the fastening groove 103 when rotated to the horizontal. The fastening groove 103 extends to the front of the upper cover 1, but does not communicate with the wiring cavity 201. The fastening groove 103 on the front of the upper cover 1 can fit with the side pull plate 301. The inner side of the snap fastener 3 has a reinforcing rib 304 extending from the inner side of the side pull plate 301 to the inner side of the top hook plate 302, which can effectively improve the deformation resistance of the snap fastener 3.

[0029] Working principle: In use, first place the bolts and other connectors into the recessed groove 202, pass them through the connection hole 208 and fix them to the mounting surface. Then, connect the exposed cable end in the wiring cavity 201 and place it into the groove of appropriate size. Then, insert the complete part of the cable into the wire-passing groove 207. Close the upper cover 1 downwards until the upper boss 206 is inserted into the sealing groove 101. At this time, the connected cable is clamped and both ends of the cable connection are sealed. The part of the cable outside the junction box rests on the extension support plate 205. Flip up the buckle 3 structure until the side pull plate 301 and the top hook plate 302 simultaneously engage with the recessed groove 202. Due to the constraint of the buckle 3, the upper cover 1 and the wiring base 2 can maintain stability. The wiring cavity 201 is well shielded and protected by the upper cover 1, so it can maintain the reliability and safety of the exposed cable connection part. It is also very convenient to disassemble.

[0030] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A dual core splice closure, characterized by: The utility model provides a wire connecting base, which comprises a wire connecting base (2), a wire cavity (201) extending downward is formed on the upper surface of the wire connecting base (2), the upper surface of the wire connecting base (2) is rotatably connected with an upper cover (1) through a hinge structure (12), the upper surface of the wire connecting base (2) has an upper boss (206) outside the wire cavity (201), a threading groove (207) extending downward is formed on the upper surface of the upper boss (206), the threading groove (207) is communicated with the outer side of the wire connecting base (2) and the wire cavity (201), the upper cover (1) is provided with a close-fitting groove (101) opposite to the side of the wire connecting base (2), which is adapted to be matched with the upper boss (206), and the wire connecting base (2) is constrained by the upper cover (1) through a buckle (3) on the front surface.

2. The dual core splice closure of claim 1, wherein: Sunken grooves (202) are formed at the four corners of the upper surface of the wire connecting base (2), and connecting holes (208) communicated with the sunken grooves (202) are formed at the corners of the lower surface of the wire connecting base (2), the caliber of the connecting holes (208) is smaller than that of the sunken grooves (202).

3. The dual core splice tray of claim 2, wherein: The upper cover (1) is provided with two accommodation grooves (102) opposite to the side of the wire connecting base (2), which are respectively close to the left and right sides of the upper cover (1).

4. The dual core splice tray of claim 3, wherein: The rear side of the upper cover (1) has upper ribbed bars (104) extending to the upper surface, and the rear side of the wire connecting base (2) has lower ribbed bars (209).

5. A dual core splice closure as claimed in any one of claims 1 to 4, wherein: The front surface of the wire connecting base (2) has opposite limiting plates (203), the limiting plates (203) are provided with a fixed shaft (204) therebetween, the buckle (3) comprises a side pull plate (301), the bottom of the side pull plate (301) is provided with a hook (303) adapted to cooperate with the fixed shaft (204) to form a rotating pair.

6. The dual core splice tray of claim 5, wherein: The upper surface of the upper cover (1) is provided with a buckling groove (103), and the top of the side pull plate (301) is further provided with a vertical top hook plate (302) adapted to engage with the buckling groove (103).

7. The dual core splice tray of claim 6, wherein: The buckling groove (103) extends to the front surface of the upper cover (1) and is adapted to be matched with the side pull plate (301), and the inner side of the buckle (3) is provided with a reinforcing rib (304) extending from the inner side of the side pull plate (301) to the inner side of the top hook plate (302).

8. The dual core splice enclosure of claim 5, wherein: The outer side of the wire connecting base (2) is further provided with an extension supporting plate (205) below the threading groove (207).

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