CN212849671U - Embedded line box sealing connector and cable bridge - Google Patents

Abstract

The utility model relates to the technical field of cable bridges, and discloses an embedded line box sealing connector, which comprises an inner connecting piece and an outer connecting piece, wherein the outer connecting piece comprises a first connecting part and a first sealing part, the inner connecting piece comprises a second connecting part and a second sealing part, the inner wall of the first sealing part is provided with a first sealing element, the outer wall of the second sealing part is provided with a second sealing element, and a sealing cavity for accommodating the end part of a line box is formed between the first sealing element and the second sealing element after the first connecting part is fixedly connected with the second connecting part; the line box sealing connector is designed into a structure that the end part of the line box can be embedded, and during installation, the end part of the line box is only required to be embedded into the sealing connector and then locked through the connecting piece, so that the installation is convenient.

Description

Embedded line box sealing connector and cable bridge

Technical Field

The utility model relates to a cable testing bridge technical field especially relates to an embedded line box sealing connector and cable testing bridge.

Background

At present, the urban areas in China are developing rail transit, and particularly, the construction of subways is more prominent. Because the subway is built in a stratum with the depth of dozens of meters below the ground surface, underground water can permeate into infrastructure of the subway platform, the marble or the ceramic tile on the ground of the subway platform adopts a dry-pasting method at present, most of ash materials and yellow sand of the dry-pasting method account for the marble or the ceramic tile, the interior of the marble or the ceramic tile is loose and must permeate water, and the permeate water contains strong alkaline components brought by building structure concrete and has strong corrosivity. After a certain part of the ground pipeline grooves of the AFC system of the built subway are laid, the strong current pipe grooves and the weak current pipe grooves are completely infiltrated by underground water, and particularly, the underground water level of the river and coastal cities is high, so that the problem is more prominent.

If water accumulates in AFC ground wire slots for a long time, the following hazards can be generated: one cable is soaked in alkaline water for a long time, an insulating layer is easy to corrode, equipment is short-circuited if the cable is light, and personnel electric shock accidents are caused if the cable is broken down; ponding in its two AFC ground wire inslots can generate heat because the cable circular telegram and produce water vapor, and water vapor can volatilize to the floodgate machine through being qualified for the next round of competitions under the floodgate machine, causes electronic component and circuit board electric leakage or short circuit in the floodgate machine, if the floodgate machine shell electrified can make the passenger electrocute, causes the direct incident of passenger for the first moment, and the second can cause the stream of people chaotic, causes even tramples the accident.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be: the embedded line box sealing connector and the cable bridge frame with good sealing performance are provided.

The technical scheme of the utility model is that: the utility model provides an embedded line box sealing connector, includes interior connecting piece and external connection spare, the external connection spare includes first connecting portion and first sealing, interior connecting piece includes second connecting portion and second sealing, first sealing inner wall is provided with first sealing member, second sealing outer wall is provided with the second sealing member, first connecting portion with behind second connecting portion fixed connection first sealing member with form the sealed chamber that holds line box tip between the second sealing member.

The utility model discloses an embedded line box sealing connector forms the sealed chamber of one end open-ended line box through interior connecting piece and outer connecting piece, thereby the tip of line box can directly realize the sealed of one of them line box tip from the opening embedding in this sealed chamber, and sealing connector links to each other with the tip of another line box with the one end that the opening is relative to this sealing connection who realizes two line box junctions.

The joint of the first connecting part and the second connecting part is sealed through the end face of a third sealing element, and the sealing performance of the sealing connector is further improved.

An end of the first seal extends axially to an outer wall of the first seal portion; the end part of the second sealing piece axially extends to the inner wall of the second sealing part, and the extending parts of the first sealing piece and the second sealing piece can seal the end faces of two sides of the opening of the wire box embedded in the sealing cavity, so that the sealing performance of the sealing connector is further improved.

The first sealing element, the second sealing element and the third sealing element are of an integrated structure, and the sealing elements for radial sealing and end face sealing are of an integrated structure, so that the radial and end faces of the joint of the two wire boxes have better sealing performance, the sealing performance of the sealing connector is further improved, and meanwhile, the sealing elements, the inner connecting piece and the outer connecting piece are convenient to install.

The cable bridge comprises at least two line boxes which are connected with each other, the two line boxes which are connected with each other are connected through the embedded line box sealing connector, and the end parts of the line boxes are embedded into the sealing cavities, so that the two ends of the sealing connector are respectively connected with the end parts of the two line boxes in a sealing mode.

Furthermore, the two line boxes that meet are respectively provided with a third connecting part and a fourth connecting part, the line boxes are driven to move in opposite directions when the third connecting part and the fourth connecting part are connected through a connecting piece, and the line boxes can be more tightly embedded into the sealing cavities of the sealing connectors after the connecting pieces are locked, so that the sealing performance of the joints of the two line boxes is ensured.

Further, the wire box is one of a straight-through, a bent-through, a tee or a four-way.

Furthermore, a fixing support is arranged on the wire box, and the wire box is fixed on a building through the fixing support.

Further, be provided with shielding baffle in the line box, shielding baffle can separate different types of cable to avoid the interference between the cable.

Compared with the prior art, the utility model the advantage lie in:

1. the utility model discloses a improve line box sealing connector and line box end structure, design line box sealing connector into line box tip and can imbed formula structure, during the installation, only need with line box tip embedding sealing connector, then through connecting piece locking, simple to operate.

2. The utility model discloses a line box sealing connector's inside and outside connecting piece forms the sealed chamber that holds line box tip after connecting to realize the sealing connection of two line box junctions, simple structure, it is with low costs.

3. The utility model discloses a line box sealing connector adopts radial seal and end face seal's structure to seal the line box department of meeting, and sealing performance is good, waterproof level IPX 7.

Drawings

Fig. 1 is a front view of the cable bridge of the present invention.

Fig. 2 is a cross-sectional view of fig. 1 taken along line E-E.

Fig. 3 is an enlarged view of a portion H of fig. 1 according to the present invention.

Fig. 4 is a perspective view of the cable bridge of the present invention.

Fig. 5 is a front view of the sealed connector of the present invention.

Fig. 6 is a sectional view taken along line a-a of fig. 5 according to the present invention.

Fig. 7 is a perspective view of the sealing connector of the present invention.

Fig. 8 is a front view of the inner connecting member of the present invention.

Fig. 9 is a perspective view of the inner connecting member of the present invention.

Fig. 10 is a front view of the external connection member of the present invention.

Fig. 11 is a cross-sectional view taken along line C-C of fig. 10 in accordance with the present invention.

Fig. 12 is a perspective view of the external connection member of the present invention.

Fig. 13 is a front view of the sealed connector and the wire box according to the present invention.

Fig. 14 is a cross-sectional view taken along line D-D of fig. 13 in accordance with the present invention.

Fig. 15 is a perspective view of the sealing connector and the wire box according to the present invention.

Fig. 16 is a front view of the connection structure of the first gasket and the second gasket of the present invention.

Fig. 17 is a sectional view taken along line F-F of fig. 16 according to the present invention.

Fig. 18 is a perspective view of fig. 16 according to the present invention.

Fig. 19 is a structural view of a third seal member of the present invention.

Fig. 20 is a schematic view of the sealed connector and the wire box according to another structure of the present invention.

Fig. 21 is a schematic view of the connection between the inner and outer connecting members of the sealing connector according to another structure of the present invention.

Reference numerals:

the sealing connector 100, the external connector 1, the first connecting portion 11, the first sealing portion 12, the first sealing member 13, the internal connector 2, the second connecting portion 21, the second sealing portion 22, the second sealing member 23, the sealing chamber 3, the third sealing member 4, the wire box 5, the third connecting portion 51, the fourth connecting portion 52, the connecting member 53, the fixing bracket 54, and the shielding partition plate 55.

Detailed Description

The installation of the cable bridge is generally to fix the wire boxes on the ground in sections, and then to connect the junction of the two wire boxes by adopting the sealing connector, in order to improve the sealing performance of the junction of the wire boxes of the cable bridge and facilitate the installation, the applicant improves the sealing connector of the cable bridge to improve the overall sealing performance of the cable bridge, and designs an embedded wire box sealing connector for the purpose.

The cable bridge frame comprises at least two line boxes 5 which are connected with each other, wherein the two line boxes 5 which are connected with each other are connected through the embedded line box sealing connector 100, and the end parts of the line boxes 5 are embedded into the sealing cavity 3, so that the two ends of the sealing connector 100 are respectively connected with the end parts of the two line boxes 5 which are connected with each other in a sealing way.

Preferably, the wire box 5 is one of a straight-through, a bend-through, a tee and a four-way, as shown in fig. 1 to 4, and the application provides an example of the connection of two bend-through.

Preferably, the wire box 5 is provided with a fixing bracket 54, and the wire box 5 is fixed on the building through the fixing bracket 54 and the connecting piece 53.

Preferably, a shielding partition plate 55 is arranged in the wire box 5, and the shielding partition plate 55 can separate different types of cables, so as to avoid interference between the cables.

The embedded wire box sealing connector 100 of the present application, as shown in fig. 5 to 7, includes an inner connector 2 and an outer connector 1, the outer connector 1 includes a first connecting portion 11 and a first sealing portion 12, and the inner connector 2 includes a second connecting portion 21 and a second sealing portion 22. The inner wall of the first sealing part 12 is provided with a first sealing element 13, and the outer wall of the second sealing part 22 is provided with a second sealing element 23.

After the first connecting part 11 is fixedly connected with the second connecting part 21, a sealing cavity 3 for accommodating the end part of the wire box 5 is formed between the first sealing part 13 and the second sealing part 23; the first connecting portion 11 is used for being fixedly connected with the end portion of the wire box 5, welding can be conducted between the first connecting portion 11 and the second connecting portion 21 and between the connecting portion and the wire box 5, and in order to guarantee welding accuracy, welding positioning holes are formed in the first connecting portion 11 and the second connecting portion 21. As a modification of the external connection member 1, a first connection portion 11 is connected to a first sealing portion 12, and the first connection portion 11 and the first sealing portion 12 are of a frame-shaped structure conforming to the cross-sectional shape of the end portion of the wire cassette 5, preferably, as shown in fig. 10 to 12, the first connection portion 11 and the first sealing portion 12 may be integrally formed to ensure the sealing performance of the entire external connection member 1; the cross section of the first connecting part 11 is in the same size as that of the first connecting part which can be tightly attached to the inner wall of the wire box 5 after being connected with the wire box 5, so that the influence on the sealing performance caused by the overlarge gap between the first connecting part and the wire box 5 is prevented; the first sealing part 12 has a cross-sectional dimension such that after the sealing chamber 3 formed between the first sealing part and the inner connecting part 2 is inserted into the end of the wire box 5, the first sealing part 13 and the second sealing part 23 can generate a certain amount of compression to ensure that no gap exists between the first sealing part 13 and the second sealing part 23 and the wire box 5, thereby improving the sealing performance of the junction of the wire box 5.

As a modification of the inner joint member 2, preferably, as shown in fig. 8 and 9, a second connecting portion 21 is connected to a second sealing portion 22, and the second connecting portion 21 and the second sealing portion 22 may be integrally formed to ensure the sealing performance of the entire inner joint member 2; the cross section of the second connecting part 21 is just the size that the second connecting part can be tightly attached to the inner wall of the first connecting part 11 after being connected, so that the sealing performance is prevented from being influenced by overlarge gap between the first connecting part and the second connecting part; the cross-sectional dimension of the second sealing part 22 is such that after the sealing chamber 3 formed between the first sealing part and the second sealing part after being connected with the external connecting piece 1 is embedded into the end part of the wire box 5, the first sealing part 13 and the second sealing part 23 can generate a certain amount of compression to ensure that no gap exists between the first sealing part 13 and the second sealing part 23 and the wire box 5, thereby improving the sealing performance of the junction of the wire box 5. When the structure is adopted, one end of the inner connecting piece 2 is fixedly connected with the end part of one line box 5 after being connected with the outer connecting piece 1, the other end forms a sealing cavity 3, and the sealing cavity 3 is used for being embedded into the end part of the other line box 5.

As another modification to the external connection member 1, as shown in fig. 21, first sealing portions 12 are connected to both ends of one first connection portion 11, respectively. As another improvement of the inner connector 2, two ends of one second connecting portion 21 are respectively connected with a second sealing portion 22, when the structure is adopted, two sealing cavities 3 are formed at two ends after the outer connector 1 is connected with the inner connector 2, when the structure is installed, the end portions of two wire boxes 5 are respectively embedded into the two sealing cavities 3, and the installation structure is shown in fig. 20.

In order to further improve the sealing performance of the sealing connector 100, the joint of the inner connecting piece 2 and the outer connecting piece 1 is subjected to end face sealing; specifically, a third sealing element 4 may be disposed in the sealing cavity 3 between the first sealing portion 12 and the second sealing portion 22 to achieve end face sealing at the connection between the inner connecting member 2 and the outer connecting member 1. Specifically, as shown in fig. 19, the third sealing member 4 is a sealing strip structure having a rectangular cross section and conforming to the cross-sectional shape of the sealing chamber 3. Two opposite side surfaces of the third sealing element 4 are adhered to the inner connecting element 2 and the outer connecting element 1, so that the sealing reliability is ensured.

Preferably, the third sealing element 4 may also be a sealing pad with a U-shaped groove structure in cross section, and when the sealing pad is installed by adopting the structure, the U-shaped groove of the third sealing element 4 is embedded in the end part of the wire box, and then the wire box provided with the third sealing element 4 is integrally embedded in the sealing cavity.

Preferably, as shown in fig. 16 to 18, the ends of the first seal member 13 and the second seal member 23 are connected to form a sealing pad structure having a U-shaped groove in cross section for fitting into the end of the wire cassette 5 to seal the end face and the radial direction of the wire cassette 5. Meanwhile, the third sealing member 4 performs end face sealing on the end of the other line box which is connected, thereby improving the sealing performance of the whole sealing connector. Preferably, the surfaces of the first sealing element 13 and the second sealing element 23, which are in contact with the wire box 5, are inclined surfaces, so that the influence of tilting of the pressed end parts on the first sealing element 13 and the second sealing element 23 in the installation process is avoided.

In order to improve the sealing performance of the sealing connector 100, as shown in fig. 13-15, the structures of the first sealing member 13 and the second sealing member 23 are further improved, that is, the end of the first sealing member 13 axially extends to the outer wall of the first sealing portion 12, the end of the second sealing member 23 axially extends to the inner wall of the second sealing portion 22, and the extending portions of the first sealing member 13 and the second sealing member 23 can perform end face sealing on both sides of the opening of the wire box 5 after being inserted into the sealing chamber 3.

Preferably, in order to further improve the sealing performance of the sealing connector 100 and facilitate the installation of the sealing members with the inner connecting member 2 and the outer connecting member 1, the first sealing member 13, the second sealing member 23, and the third sealing member 4 are integrated, and specifically, one end of the first sealing member 13 and one end of the second sealing member 23 may be connected to form an integrated structure at the same time. The sealing element of the radial seal and the end face seal is made into an integral structure, so that the radial and end faces at the joint of the two line boxes 5 have better sealing performance.

Preferably, in order to ensure the sealing performance and reliability of the connection between the sealed connector 100 and the two wire boxes 5, a third connecting portion 51 and a fourth connecting portion 52 are respectively arranged on the two wire boxes 5 which are connected with each other, the third connecting portion 51 and the fourth connecting portion 52 drive the two wire boxes 5 to move towards each other when connected through a connecting piece 53, and after the connecting piece 53 is locked, the wire boxes 5 can be more tightly embedded into the sealing cavity 3 of the sealed connector 100, so that the sealing performance of the connection position of the two wire boxes 5 is ensured. Specifically, the third connection portion 51 and the fourth connection portion 52 may be tab structures provided with mounting holes, and the connection member 53 may be specifically a bolt and a nut.

In order to ensure that the depth of the end part of the wire box 5 embedded into the sealing cavity 3 is enough to ensure the sealing performance in the installation process, a marking line is arranged on the outer surface of the end part of the wire box 5, and after the installation is completed, the marking line is embedded into the sealing cavity and cannot be exposed.

The utility model discloses an embedded line box sealing connector 100 when specifically using, with the tip and the first connecting portion 11 fixed connection of one of them line box 5, thereby it is sealed to realize the connection of two line box 5 junctions from the opening embedding of sealing chamber 3 of sealing connector 100 with another line box 5 tip that will meet, then locks third connecting portion 51 and fourth connecting portion 52 through connecting piece 53.

The details of the present invention not described in detail in the specification are well known to those skilled in the art.

Claims (9)

1. The utility model provides an embedded line box sealing connector which characterized in that: including interior connecting piece (2) and external connection spare (1), external connection spare (1) includes first connecting portion (11) and first sealing (12), interior connecting piece (2) include second connecting portion (21) and second sealing (22), first sealing (12) inner wall is provided with first sealing member (13), second sealing (22) outer wall is provided with second sealing member (23), first connecting portion (11) with behind second connecting portion (21) fixed connection first sealing member (13) with form sealed chamber (3) that hold line box (5) tip between second sealing member (23).

2. The embedded wire box sealed connector of claim 1, wherein: the joint of the first connecting part (11) and the second connecting part (21) is sealed by the end face of a third sealing element (4).

3. The embedded wire box sealed connector according to claim 1 or 2, characterized in that: the end of the first seal (13) extends axially to the outer wall of the first seal portion (12); the end of the second seal (23) extends axially to the inner wall of the second seal portion (22).

4. The embedded wire box sealed connector of claim 3, wherein: the first sealing element (13), the second sealing element (23) and the third sealing element (4) are of an integrated structure.

5. A cable tray comprising at least two terminal blocks (5) which meet, characterized in that: the two said thread boxes (5) which meet are connected by an embedded thread box sealing connector according to any one of claims 1 to 4, the ends of the thread box (5) being embedded in the sealing chamber (3).

6. The cable tray of claim 5, wherein: the two line boxes (5) which are connected are respectively provided with a third connecting part (51) and a fourth connecting part (52), and the third connecting part (51) and the fourth connecting part (52) drive the two line boxes (5) to move oppositely when connected through a connecting part (53).

7. The cable tray of claim 6, wherein: the wire box (5) is one of a straight-through, a bent-through, a tee joint or a four-way joint.

8. The cable tray of claim 7, wherein: and a fixing support (54) is arranged on the wire box (5).

9. The cable tray of claim 8, wherein: and a shielding clapboard (55) is arranged in the wire box (5).

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