Wire box and pipeline system

Abstract

The utility model discloses a wire box, which is used for being connected with an external wire pipe in a sealing way, and comprises a box body, a connecting piece and a connecting piece, wherein a first convex part is arranged on the periphery of the outlet in a surrounding mode, and the first convex part is sleeved with the first sealing piece; the cover body covers the outlet in the first direction, and the cover body extrudes the first sealing piece in the first direction; the first direction is perpendicular to the cross section of the outlet; and / or a second convex part is arranged at the periphery of the connecting port in a surrounding manner; the second sealing piece is arranged outside the second convex part in a sleeving manner, and the external line pipe is used for extruding the second sealing piece in the second direction so that the external line pipe can be connected with the connecting port in a sealed manner; the second direction is perpendicular to the cross section of the connector. According to the utility model, the sealing performance and the waterproof performance of the wire box can be improved. The utility model further provides a pipeline system.

Description

Technical Field

[0001] The utility model relates to the technical field of power pipeline arrangement, and particularly relates to a wire box and a pipeline system. Background Art

[0002] In building decoration, a wire box is one of the electrical auxiliary materials. The wire box is usually embedded in a wall or the ground for cables to pass through. The cables used in decoration need to pass through an external pipeline. At the joint of the cables, for example, when the cable line is relatively long or the cable needs to be turned, a wire box is used as a transition to protect the cables and route the cables reasonably. The existing wire box includes a box body with an opening at the top, and the opening at the top is detachably closed by a cover body. A plurality of holes for connecting external pipelines are reserved on the side surface of the box body. During actual installation, the corresponding number and positions of the reserved holes are opened as needed so that the external pipeline is connected to the box body. In this way, the sealing performance at the interfaces between the box body and the cover body and between the external pipeline and the box body is poor, and water cannot be effectively prevented, resulting in potential safety hazards. Moreover, building materials such as concrete are likely to fall into the wire box during the embedding process, bringing potential hazards and inconveniences to the use of the wire box.

[0003] Most of the existing sealing solutions between the box body and the cover body and between the external pipeline and the box body are circumferential seals. For example, a part of the cover body extends into the opening at the top of the box body, and a sealing glue is coated in a circle between the cover body and the opening at the top of the box body, or a sealing ring is provided between the cover body and the opening at the top of the box body to achieve sealing. However, the sealing effect of this kind of wire box is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem of poor sealing performance of the wire box. The utility model provides a wire box and a pipeline system, which can improve the sealing performance and waterproof performance of the wire box.

[0005] To solve the above technical problems, an embodiment of the utility model discloses a wire box for sealing connection with an external pipeline, and the wire box includes:

[0006] A box body, including an outlet and a connection port; wherein,

[0007] A first convex portion is circumferentially provided around the outlet;

[0008] A first sealing member is sleeved outside the first convex portion;

[0009] A cover body covers the outlet along a first direction, and the cover body presses the first sealing member along the first direction; the first direction is perpendicular to the cross-section of the outlet; and / or,

[0010] A second convex portion is circumferentially provided around the connection port;

[0011] A second seal is sleeved outside the second convex portion. The external wire pipe is used to extrude the second seal along a second direction, so that the external wire pipe and the connection port are hermetically connected; the second direction is perpendicular to the cross-section of the connection port.

[0012] With the above technical solution, a first convex portion is provided around the outlet. The first seal is sleeved outside the first convex portion. The cover body extrudes the first seal along a first direction, that is, the cover body and the box body jointly clamp the first seal, thereby realizing the hermetic connection between the cover body and the outlet, preventing external water or debris (such as concrete debris) from entering the box body, and thus reducing the influence of water or debris on the pipelines in the box body. That is to say, through the hermetic connection between the box body and the cover body, the sealing performance and waterproof performance of the junction box are improved.

[0013] A second convex portion is provided around the connection port. The second seal is sleeved outside the second convex portion. The external wire pipe extrudes the second seal along a second direction, that is, the cover body and the external wire pipe jointly clamp the second seal, thereby realizing the hermetic connection between the cover body and the connection port, preventing external water or debris (such as concrete debris) from entering the box body, and thus reducing the influence of water or debris on the pipelines in the box body. That is to say, through the hermetic connection between the external wire pipe and the box body, water or debris is prevented from entering the junction box at the connection between the external wire pipe and the box body, thereby improving the sealing performance and waterproof performance of the junction box.

[0014] In summary, to improve the sealing performance and waterproof performance of the junction box, a first convex portion can be provided only at the outlet of the box body, and a first seal is used to surround the first convex portion. The cover body extrudes the first seal along the first direction, thereby realizing the hermetic connection at the joint between the box body and the cover body. Similarly, a second convex portion can be provided only at the connection port of the box body, and a second seal is used to surround the second convex portion. The external wire pipe extrudes the second seal along the second direction, thereby realizing the hermetic connection at the joint between the box body and the external wire pipe. It is also possible to set both at the same time, that is, the cover body extrudes the first seal on the first convex portion at the outlet, and the external wire pipe extrudes the second seal on the second convex portion at the connection port, thereby simultaneously realizing the hermetic connection between the box body and the cover body and the hermetic connection between the box body and the external wire pipe, and further improving the sealing performance and waterproof performance of the junction box to a greater extent.

[0015] According to another specific embodiment of the present invention, before the cover body extrudes the first seal, along the first direction, the first seal protrudes from the first convex portion, and the lower surface of the cover body and the first convex portion are in contact with each other along the first direction.

[0016] According to another specific embodiment of the present invention, the lower surface of the cover body includes a first extrusion plane, and the first extrusion plane and the first convex portion are in contact with each other along the first direction.

[0017] With the above technical solution, the first extrusion plane and the first convex part are in contact with each other along the first direction, so that the part of the first seal protruding from the first convex part is extruded by the first extrusion plane, thereby preventing water or debris from entering the box body through the gap between the first extrusion plane and the upper end surface of the box body, and thus realizing the sealed connection between the box body and the cover body.

[0018] According to another specific embodiment of the present invention, a first groove is provided on the lower surface of the cover body, the first groove and the outlet are arranged opposite to each other along the first direction, and a part of the first convex part is inserted into the first groove along the first direction and abuts against the bottom wall of the first groove along the first direction.

[0019] With the above technical solution, a part of the first convex part is inserted into the first groove along the first direction and abuts against the bottom wall of the first groove along the first direction, thereby pre-positioning the connection between the cover body and the outlet of the box body to facilitate subsequent further fixed connection (such as the screw connection described later).

[0020] According to another specific embodiment of the present invention, along the first direction, the height of the first seal is lower than that of the first convex part; the cover body further includes a first extrusion plane, the first extrusion plane surrounds the first groove, the first extrusion plane protrudes from the lower surface of the cover body along the first direction, and the distance between the first extrusion plane and the upper end surface of the box body in the first direction is less than the height of the first seal before extrusion.

[0021] With the above technical solution, along the first direction, the height of the first seal is lower than that of the first convex part, so that a part of the first convex part is inserted into the first groove along the first direction and abuts against the bottom wall of the first groove along the first direction. And the distance between the first extrusion plane and the upper end surface of the box body in the first direction is less than the height of the first seal before extrusion, so that the first seal located between the first extrusion plane and the upper end of the box body is extruded by the first extrusion plane, and thus the first seal blocks water or debris from entering the box body through the gap between the first extrusion plane of the cover body and the upper end surface of the box body, and thus realizes the sealed connection between the box body and the cover body.

[0022] According to another specific embodiment of the present invention, the wire box is made of stainless steel.

[0023] According to another specific embodiment of the present invention, the outlet is circular or rectangular.

[0024] According to another specific embodiment of the present invention, the connection port is circular or rectangular.

[0025] According to another specific embodiment of the present utility model, the first seal is a first annular seal ring or a first rectangular seal ring.

[0026] According to another specific embodiment of the present utility model, the second seal is a second annular seal ring or a second rectangular seal ring.

[0027] According to another specific embodiment of the present utility model, it further includes:

[0028] A plurality of first screws;

[0029] The box body includes an upper end portion, the outlet is provided at the upper end portion, and a plurality of first screw holes are provided at intervals on the edge of the upper end portion;

[0030] A plurality of second screw holes are provided at intervals on the edge of the cover body, and the plurality of second screw holes correspond to the plurality of first screw holes one by one;

[0031] Each of the second screw holes and its corresponding first screw hole are for the first screw to pass through, so that the cover body is fixedly connected to the box body.

[0032] Adopting the above technical solution, the first screw fixedly connects the cover body and the box body, so that the cover body and the box body are fastened together, thereby providing pressure for the cover body to squeeze the first seal.

[0033] According to another specific embodiment of the present utility model, it further includes:

[0034] A plurality of second screws;

[0035] A plurality of mounting lugs are provided at the bottom of the box body, the mounting lugs are provided with third screw holes, and the third screw holes are for the second screws to pass through to fix the wire box to the base layer of the building.

[0036] Adopting the above technical solution, the second screw passes through the third screw hole on the mounting lug to fix the whole wire box in the base layer of the building, which can well fix the wire box and prevent the wire box from moving due to the extrusion of the concrete layer.

[0037] The present utility model also discloses a pipeline system based on the above wire box, including:

[0038] The above-mentioned wire box;

[0039] An external pipeline, including a docking portion, and the docking portion squeezes the second seal along the second direction.

[0040] According to another specific embodiment of the present utility model, before the external pipeline squeezes the second seal, along the second direction, the second seal protrudes from the second convex portion, and the surface of the docking portion and the second convex portion are in contact with each other along the second direction.

[0041] According to another specific embodiment of the present utility model, the surface of the docking portion includes a second pressing plane, and the second pressing plane and the second convex portion are in contact with each other along the second direction.

[0042] Adopting the above technical solution, since the second pressing plane and the second convex portion are in contact with each other along the second direction, the portion of the second seal protruding from the second convex portion is pressed by the second pressing plane, so that the second seal blocks water or debris from entering the box body through the gap between the second pressing plane and the surface of the side end of the box body, thereby realizing the sealed connection between the box body and the external wire pipe.

[0043] According to another specific embodiment of the present utility model, the docking portion includes a docking port, and the docking port communicates with the connection port; a second groove is provided around the edge of the docking port, and a part of the second convex portion is inserted into the second groove and is in contact with the bottom wall of the second groove along the second direction.

[0044] Adopting the above technical solution, a part of the second convex portion is inserted into the second groove along the second direction and is in contact with the bottom wall of the second groove along the second direction, so as to perform pre-positioning for the connection between the external wire pipe and the connection port of the box body, facilitating subsequent further fixed connection (such as the screw connection described later).

[0045] According to another specific embodiment of the present utility model, along the second direction, the height of the second seal is lower than that of the second convex portion; the docking portion further includes a second pressing plane, the second pressing plane surrounds the second groove, the second pressing plane protrudes from the surface of the docking portion along the second direction, and the distance between the second pressing plane and the surface of the side end of the box body in the second direction is less than the height of the second seal before being pressed.

[0046] Adopting the above technical solution, along the second direction, the height of the second seal is lower than that of the second convex portion in order to enable a part of the second convex portion to be inserted into the second groove along the second direction and be in contact with the bottom wall of the second groove along the second direction. And the distance between the second pressing plane and the surface of the side end of the box body in the second direction is less than the height of the second seal before being pressed, so that the second seal located between the second pressing plane and the side end of the box body is pressed by the second pressing plane, and thus the second seal blocks water or debris from entering the box body through the gap between the second pressing plane and the surface of the side end of the box body, thereby realizing the sealed connection between the box body and the external wire pipe.

[0047] According to another specific embodiment of the present utility model, it further includes:

[0048] a plurality of third screws;

[0049] The box body includes side ends, the connection port is arranged at the side ends, and a plurality of fourth screw holes are arranged at intervals on the edge of the side ends;

[0050] A plurality of fifth screw holes are arranged at intervals on the edge of the docking part of the external wire tube, and the plurality of fifth screw holes correspond to the plurality of fourth screw holes one by one;

[0051] Each of the fourth screw holes and its corresponding fifth screw hole is for the third screw to pass through, so that the external wire tube is fixedly connected to the box body.

[0052] With the above technical solution, the third screw fixedly connects the external wire tube and the box body, so that the external wire tube and the box body are fastened together, thereby providing pressure for the extrusion of the second seal by the docking part of the external wire tube.

[0053] According to another specific embodiment of the present invention, it further includes:

[0054] Jumper wire;

[0055] Both the wire box and the external wire tube are made of stainless steel;

[0056] At least one of the fourth screw holes and its corresponding fifth screw hole are connected by the jumper wire.

[0057] With the above technical solution, the jumper wire connects the external wire tube and the box body to improve the electrical conductivity between the external wire tube and the wire box. Description of the Drawings

[0058] Figure 1 A perspective view showing the pipeline system of the embodiment of the present invention;

[0059] Figure 2 A perspective view showing the box body of the embodiment of the present invention;

[0060] Figure 3 A cross-sectional view showing the pipeline system of the embodiment of the present invention;

[0061] Figure 4 Showing Figure 3 A partial enlarged view of area A in;

[0062] Figure 5 A perspective view showing the cover body of the embodiment of the present invention;

[0063] Figure 6 A schematic diagram showing the pipeline system of another embodiment of the present invention;

[0064] Figure 7 Showing Figure 6 A partial enlarged view of area C in;

[0065] Figure 8 Shows a top view of the pipeline system according to an embodiment of the present utility model;

[0066] Figure 9 Shows a perspective view of the external pipeline in the embodiment of the present utility model;

[0067] Figure 10 Shows Figure 3 A partial enlarged view of area B in

[0068] Figure 11 Shows Figure 6 A partial enlarged view of area D in Specific embodiments

[0069] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Although the description of the present utility model will be introduced in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this implementation manner. On the contrary, the purpose of introducing the utility model in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details will be included in the following description. The present utility model can also be implemented without these details. In addition, in order to avoid confusing or obscuring the key points of the present utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0070] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0071] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0072] Terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0073] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0074] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0075] Refer to Figure 1 , an embodiment of the present application provides a pipeline system 1, which includes a wire box 2 and an external pipeline 3. The wire box 2 and the external pipeline 3 are jointly buried in a building body. The pipelines (not shown in the figure) in the external pipeline 3 can extend into the wire box 2 and pass through the wire box 2.

[0076] Among them, the wire box 2 includes a box body 21 and a cover body 22; among them, the box body 21 and the cover body 22 are hermetically connected, so as to prevent water or sundries (such as concrete debris) from entering the box body 21 through the connection between the box body 21 and the cover body 22, which has an adverse effect on the pipelines in the box body 21, thereby improving the sealing performance and waterproof performance of the wire box 2.

[0077] Furthermore, the box body 21 is also hermetically connected to the external pipeline 3, so as to prevent water or sundries (such as concrete debris) from entering the box body 21 through the connection between the box body 21 and the external pipeline 3, which has an adverse effect on the pipelines in the box body 21, thereby improving the sealing performance and waterproof performance of the wire box 2.

[0078] That is, the present application seals the connection between the box body 21 and the cover body 22 and the connection position with the external pipeline 3 to ensure that external water or sundries do not enter the box body 21, so that the wire box 2 has good sealing performance and waterproof performance.

[0079] The following will describe in detail the specific connection manner between the box body 21 and the cover body 22 of the wire box 2 in conjunction with the accompanying drawings.

[0080] As Figure 2 shown, the box body 21 includes a mutually communicating inner cavity 210 and an outlet 211. The inner cavity 210 is used to accommodate pipelines, and the outlet 211 is arranged at the upper end portion 212 of the box body 21. The outlet 211 is used for the pipelines in the inner cavity 210 to pass through and for the staff to operate the pipelines in the inner cavity 210 through the outlet 211.

[0081] As Figures 2 to 4As shown, a first convex portion 213 is provided around the outlet 211, and the first seal 23 is sleeved outside the first convex portion 213. Exemplarily, the first convex portion 213 protrudes from the surface of the upper end portion 212 of the box body 21 in the first direction Z.

[0082] The cover body 22 covers the outlet 211 in the first direction Z, and the cover body 22 presses the first seal 23 in the first direction Z. The first direction Z is perpendicular to the cross-section of the outlet 211. As Figure 4 shown, the first direction Z is the height direction of the wire box 2 and is also the direction in which the box body 21 and the cover body 22 face each other. The cover body 22 presses the first seal 23 in the first direction Z, that is, in the embodiment of the present application, a sealed connection between the cover body 22 and the box body 21 is formed in the direction in which the box body 21 and the cover body 22 face each other, which can be said to be "axial" sealing rather than "circumferential" sealing. In this embodiment, "axial" refers to the direction in which the box body 21 and the cover body 22 face each other, and "circumferential" refers to the direction in which the outer edge of the outlet 211 extends.

[0083] Exemplarily, as Figure 2 and Figure 5 shown, both the cover body 22 and the outlet 211 are rectangular. Among them, the area of the lower surface 220 of the cover body 22 is larger than the area of the outlet 211, so that the cover body 22 can completely block the outlet 211.

[0084] Those skilled in the art can understand that in other embodiments, the cover body 22 and the outlet 211 can also be of other shapes, such as circular, oval or polygonal, etc.

[0085] Furthermore, the cover body 22 presses the first seal 23 in the first direction Z, that is, the cover body 22 and the box body 21 jointly clamp the first seal 23, thereby realizing the sealed connection between the cover body 22 and the outlet 211, preventing external water or debris (such as concrete debris) from entering the inner cavity 210 of the box body 21, thereby reducing the influence of water or debris on the pipelines in the inner cavity 210 of the box body 21, and further improving the sealing performance and waterproof performance of the wire box 2.

[0086] In this embodiment, the first seal 23 is Figure 4 the first annular sealing ring 231 shown, and its cross-section is circular. The first seal 23 has elasticity, can be stretched to be sleeved on the rectangular first convex portion 213, and can be compressed by the pressing of the cover body 22, so as to realize the sealing effect at the connection between the cover body 22 and the outlet 211.

[0087] And in another embodiment, as Figure 6 and Figure 7As shown, the first seal 23 is the first rectangular sealing ring 232, which is adapted to the rectangular shape of the first convex portion 213. The first rectangular sealing ring 232 includes a first inner circular portion 233, a first middle rectangular portion 234, and a first outer circular portion 235 that are connected in sequence. Among them, the radial dimensions of the first inner circular portion 233 and the first outer circular portion 235 are the same, and both are greater than the height of the first middle rectangular portion 234. That is, the cover body 22 directly contacts the first inner circular portion 233 and the first outer circular portion 235, but cannot contact the first middle rectangular portion 234. The cover body 22 presses the first inner circular portion 233 and the first outer circular portion 235. Compared with the foregoing embodiments, the sealing performance and waterproof performance at the connection between the box body 21 and the cover body 22 in this embodiment are better.

[0088] In this embodiment, as Figure 7 shown, along the first direction Z, the first seal 23 protrudes from the first convex portion 213. That is, the height of the first seal 23 in the first direction Z is higher than the height of the first convex portion 213. The lower surface 220 of the cover body 22 includes a first pressing plane 222. The first pressing plane 222 and the first convex portion 213 are in contact with each other along the first direction Z. Then, the part of the first seal 23 that protrudes from the first convex portion 213 is pressed by the first pressing plane 222, so that the first seal 23 blocks water or debris from entering the box body 21 through the gap between the first pressing plane 222 of the cover body 22 and the surface of the upper end portion 212 of the box body 21, thereby realizing the sealed connection between the box body 21 and the cover body 22.

[0089] In another embodiment, as Figure 4 shown, before the cover body 22 presses the first seal 23, along the first direction Z, the height of the first seal 23 is lower than that of the first convex portion 213.

[0090] Specifically, as Figure 4 and Figure 5 shown, the above-mentioned cover body 22 includes a first groove 221. The first groove 221 is disposed opposite to the outlet 211 along the first direction Z. A part of the first convex portion 213 is inserted into the first groove 221 along the first direction Z and abuts against the bottom wall of the first groove 221 along the first direction Z. Exemplarily, a part of the first convex portion 213 is inserted into the first groove 221 along the first direction Z and abuts against the bottom wall of the first groove 221 along the first direction Z, so as to perform pre-positioning for the connection between the cover body 22 and the outlet 211 of the box body 21, facilitating subsequent further fixed connection (such as the screw connection described later).

[0091] As Figure 4 and Figure 5As shown, the first extrusion plane 222 of the cover body 22 is disposed around the first groove 221, and the first extrusion plane 222 protrudes from the lower surface 220 of the cover body 22 in the first direction Z. The first extrusion plane 222 extrudes the first seal 23 in the first direction Z.

[0092] It is easy to understand that, in the first direction Z, the height of the first seal 23 is lower than that of the first convex portion 213, so that a part of the first convex portion 213 is inserted into the first groove 221 in the first direction Z and abuts against the bottom wall of the first groove 221 in the first direction Z. The distance between the first extrusion plane 222 and the surface of the upper end portion 212 of the box body 21 in the first direction Z is less than the height of the first seal 23 before extrusion. Thus, the first seal 23 located between the first extrusion plane 222 and the upper end portion 212 of the box body 21 is extruded by the first extrusion plane 222. Further, the first seal 23 blocks water or debris from entering the box body 21 through the gap between the first extrusion plane 222 of the cover body 22 and the surface of the upper end portion 212 of the box body 21, thereby realizing the sealed connection between the box body 21 and the cover body 22.

[0093] As Figure 2 shown, a plurality of first screw holes 214 are provided at intervals on the edge of the upper end portion 212 of the box body 21. Exemplarily, 8 first screw holes 214 are provided at intervals on the edge of the upper end portion 212 of the box body 21. The upper end portion 212 of the box body 21 is rectangular, and a first screw hole 214 is provided at each of its four corners, and a first screw hole 214 is also provided at the middle position between adjacent two corners. That is, the first screw holes 214 are symmetrically distributed about the center of the upper end portion 212 of the box body 21.

[0094] As Figure 5 shown, a plurality of second screw holes 223 are provided at intervals on the edge of the cover body 22, and the plurality of second screw holes 223 correspond to the plurality of first screw holes 214 one by one. Exemplarily, 8 second screw holes 223 are provided at intervals on the edge of the cover body 22. A second screw hole 223 is provided at each of the four corners of the cover body 22, and a second screw hole 223 is also provided at the middle position between adjacent two corners. That is, the second screw holes 223 are symmetrically distributed about the center of the cover body 22.

[0095] Combined with Figure 4 , each second screw hole 223 and its corresponding first screw hole 214 are for the first screw 24 to pass through, so that the cover body 22 and the box body 21 are fixedly connected. It is easy to understand that the first screw 24 fixedly connects the cover body 22 and the box body 21, so that the cover body 22 and the box body 21 are fastened together, thereby providing pressure for the cover body 22 to extrude the first seal 23.

[0096] In this embodiment, there are eight first screws 24, thus forming eight connection points on the cover body 22 and the box body 21 to ensure the reliability and stability of the connection between the cover body 22 and the box body 21.

[0097] Those skilled in the art can understand that in other embodiments, other numbers of first screw holes 214 and second screw holes 223 can also be provided to realize the fixed connection between the cover body 22 and the box body 21 through the corresponding number of first screws 24, such as 4, 6, 10, etc.

[0098] It should be noted that the wire box 2 of the present application is provided with an outlet 211 for the pipelines in the inner cavity 210 to pass through and for the staff to operate the pipelines in the inner cavity 210 through the outlet 211. And the cover body 22 is detachably connected to the box body 21 to close the outlet 211 to ensure that the concrete layer will not cover the outlet 211 and ensure that the outlet 211 can be used.

[0099] The following will describe in detail the specific connection method between the box body 21 and the external pipeline 3 with reference to the accompanying drawings.

[0100] As Figure 2 shown, the box body 21 includes a connection port 215 communicating with the inner cavity 210, and the connection port 215 is provided at the side end portion 216 of the box body 21. Exemplarily, the box body 21 is generally rectangular.

[0101] As Figure 1 and Figure 9 shown, in this embodiment, there are two connection ports 215, and the two connection ports 215 are respectively provided at the two side end portions 216 of the box body 21, and the included angle between the planes where the two connection ports 215 are located is 90°. However, those skilled in the art can understand that in other embodiments, other numbers of connection ports 215 can be provided, such as 1, 3, 4, etc.

[0102] Similarly, the position of the connection port 215 is not limited either. For example, the two connection ports 215 can also be provided at the opposite two side end portions 216 of the box body 21, that is, at this time, the included angle between the planes where the two connection ports 215 are located is 0°, or three connection ports 215 can be provided at any three side end portions 216 of the box body 21, and four connection ports 215 can be provided at the four side end portions 216 of the box body 21. The present invention does not limit this and can be reasonably set according to actual needs.

[0103] As Figure 2 、 Figure 9 and Figure 10 shown, a second convex portion 217 is provided around the connection port 215, and the second sealing member 25 is sleeved outside the second convex portion 217. Exemplarily, the second convex portion 217 protrudes from the surface of the side end portion 216 of the box body 21 along the second direction X.

[0104] As Figure 2 and Figure 9 shown, the external pipeline 3 includes a docking part 31, the docking part 31 includes a docking port 310, and the docking port 310 communicates with the connection port 215 along the second direction X. That is, the pipeline in the external pipeline 3 can successively pass through the docking port 310 and the connection port 215, enter the inner cavity 210 of the junction box 2, and then pass through the outlet 211 of the junction box 2 or the connection port 215 on the other side of the junction box 2.

[0105] Exemplarily, both the docking port 310 and the connection port 215 are rectangular, and they have the same size. However, those skilled in the art can understand that in other embodiments, the docking port 310 and the connection port 215 can also be other shapes, such as circular, oval, or polygonal, etc.

[0106] As Figure 3 and Figure 10 shown, the docking part 31 of the external pipeline 3 squeezes the second seal 25 along the second direction X, so that the external pipeline 3 and the connection port 215 are sealed and connected; the second direction X is perpendicular to the cross-section of the connection port 215, and the second direction is the direction in which the external pipeline 3 and the connection port 215 face each other. The docking part 31 of the external pipeline 3 squeezes the second seal 25 along the second direction X, that is, in the embodiment of the present application, a sealed connection between the external pipeline 3 and the box body 21 is formed in the direction in which the external pipeline 3 and the connection port 215 face each other, which can be said to be "axial" sealing rather than "circumferential" sealing. In this embodiment, "axial" refers to the direction in which the external pipeline 3 and the connection port 215 face each other, and "circumferential" refers to the direction in which the outer edge of the connection port 215 extends.

[0107] Exemplarily, the docking port 310 of the external pipeline 3 and the connection port 215 are docked along the second direction X, and the docking part 31 of the external pipeline 3 squeezes the second seal 25, that is, the docking part 31 and the side end 216 of the box body 21 jointly clamp the second seal 25, so as to realize the sealed connection between the docking port 310 and the connection port 215, prevent external water or debris (such as concrete debris) from entering the box body 21, cause adverse effects on the pipelines in the inner cavity 210 of the box body 21, and further improve the sealing performance and waterproof performance of the junction box 2.

[0108] In this embodiment, the second seal 25 is Figure 10 the second annular sealing ring 251 shown, and its cross-section is circular. The second annular sealing ring 251 has elasticity, can be stretched to be sleeved on the rectangular second convex part 217, and can be compressed by the extrusion of the docking part 31 of the external pipeline 3, so as to realize the sealing effect on the connection part between the docking port 310 and the connection port 215.

[0109] As Figure 6 and Figure 11As shown, in another embodiment, the second seal 25 is a second rectangular sealing ring 252, which is adapted to the rectangular shape of the second convex portion 217. The second rectangular sealing ring 252 includes a second inner circular portion 253, a second middle rectangular portion 254, and a second outer circular portion 255 connected in sequence. Among them, the radial dimensions of the second inner circular portion 253 and the second outer circular portion 255 are the same, and both are greater than the height of the second middle rectangular portion 254. That is, the docking portion 31 directly contacts the second inner circular portion 253 and the second outer circular portion 255, and cannot contact the second middle rectangular portion 254. The docking portion 31 presses the second inner circular portion 253 and the second outer circular portion 255. Compared with the previous embodiment, the sealing performance and waterproof performance at the connection between the box body 21 and the external wire tube 3 in this embodiment are better.

[0110] In this embodiment, as Figure 11 shown, along the second direction X, the second seal 25 protrudes from the second convex portion 217. That is, the height of the second seal 25 in the second direction X is higher than the height of the second convex portion 217. The surface of the docking portion 31 includes a second extrusion plane 312. The second extrusion plane 312 and the second convex portion 217 are abutted along the second direction X. Then, the part of the second seal 25 protruding from the second convex portion 217 is extruded by the second extrusion plane 312, so that the second seal 25 blocks water or debris from entering the box body 21 through the gap between the second extrusion plane 312 and the surface of the side end portion 216 of the box body 21, thereby realizing the sealed connection between the box body 21 and the external wire tube 3.

[0111] In another embodiment, as Figure 10 shown, before the docking portion 31 presses the second seal 25, along the second direction X, the height of the second seal 25 is lower than that of the second convex portion 217.

[0112] Specifically, as Figure 2 and Figure 9 shown, a second groove 311 is provided around the edge of the docking interface 310. A part of the second convex portion 217 is inserted into the second groove 311 and abuts against the bottom wall of the second groove 311 along the second direction X. Exemplarily, a part of the second convex portion 217 is inserted into the second groove 311 along the second direction X and abuts against the bottom wall of the second groove 311 along the second direction X, so as to perform pre-positioning for the connection between the external wire tube 3 and the connection port 215 of the box body 21, facilitating subsequent further fixed connection (such as the screw connection described later).

[0113] The second extrusion plane 312 of the docking portion 31 is arranged around the second groove 311. The second extrusion plane 312 protrudes from the surface of the docking portion 31 along the second direction X, and the second extrusion plane 312 presses the second seal 25 along the second direction X.

[0114] It is easy to understand that, as Figure 10 shown, along the second direction X, the height of the second seal 25 is lower than that of the second convex portion 217, so that a part of the second convex portion 217 is inserted into the second groove 311 along the second direction X and abuts against the bottom wall of the second groove 311 along the second direction X. The distance between the second pressing plane 312 and the surface of the side end portion 216 of the box body 21 in the second direction X is smaller than the height of the second seal 25 before being pressed, so that the second seal 25 located between the second pressing plane 312 and the side end portion 216 of the box body 21 is pressed by the second pressing plane 312. Furthermore, the second seal 25 blocks water or debris from entering the box body 21 through the gap between the second pressing plane 312 and the surface of the side end portion 216 of the box body 21, thereby realizing the sealed connection between the box body 21 and the external wire pipe 3.

[0115] As Figure 2 shown, a plurality of fourth screw holes 218 are provided at intervals on the edge of the side end portion 216 of the box body 21. Exemplarily, 8 fourth screw holes 218 are provided at intervals on the edge of the side end portion 216 of the box body 21. The side end portion 216 of the box body 21 is rectangular, and a fourth screw hole 218 is provided at each of its four corners, and a fourth screw hole 218 is also provided at the middle position between adjacent two corners. That is, the fourth screw holes 218 are symmetrically distributed about the center of the side end portion 216 of the box body 21.

[0116] Correspondingly, as Figure 9 shown, a plurality of fifth screw holes 313 are provided at intervals on the edge of the docking portion 31 of the external wire pipe 3, and the plurality of fifth screw holes 313 correspond to the plurality of fourth screw holes 218 one by one. Exemplarily, 8 fifth screw holes 313 are provided at intervals on the edge of the docking portion 31. The docking portion 31 is rectangular, and a fifth screw hole 313 is provided at each of its four corners, and a fifth screw hole 313 is also provided at the middle position between adjacent two corners. That is, the fifth screw holes 313 are symmetrically distributed about the center of the docking portion 31.

[0117] Each fourth screw hole 218 and its corresponding fifth screw hole 313 are for the third screw 26 to pass through, so as to fixedly connect the external wire pipe 3 and the box body 21. It is easy to understand that the third screw 26 fixedly connects the external wire pipe 3 and the box body 21, so that the external wire pipe 3 and the box body 21 are fastened together, thereby providing pressure for the docking portion 31 of the external wire pipe 3 to press the second seal 25.

[0118] In this embodiment, there are 8 third screws 26, thereby forming 8 connection points on the box body 21 and the external wire pipe 3 to ensure the reliability and stability of the connection between the box body 21 and the external wire pipe 3.

[0119] Those skilled in the art can understand that in other embodiments, other numbers of fourth screw holes 218 and fifth screw holes 313 can also be provided to realize the fixed connection between the external wire tube 3 and the box body 21 through the corresponding number of third screws 26, such as 4, 6, 10, etc.

[0120] So far, this application has described in detail the sealing connection method between an external wire tube 3 and a connection port 215 of the box body 21. As for the connection methods between other connection ports 215 of the box body 21 and other external wire tubes 3, they are the same as those in the above embodiments, and this application will not elaborate on them.

[0121] It should be noted that in the embodiments of this application, the first convex portion 213 at the outlet 211 is sleeved with the first sealing member 23, and the second convex portion 217 at the connection port 215 is sleeved with the second sealing member 25, so as to simultaneously realize the sealing connection between the box body 21 and the cover body 22, and the sealing connection between the box body 21 and the external wire tube 3. However, those skilled in the art can understand that in other embodiments, only one sealing connection can also be set according to the actual situation. For example, when the box body 21 does not have an outlet 211, it does not need to be provided with a cover body 22 for sealing connection.

[0122] In this embodiment, both the wire box 2 and the external wire tube 3 are made of stainless steel. Exemplarily, the wire box 2 made of stainless steel can prevent the wire box 2 and the external wire tube 3 from rusting. However, those skilled in the art can understand that in other embodiments, the wire box 2 and the external wire tube 3 can also be made of other materials, such as cast iron, alloy materials, etc.

[0123] Furthermore, as Figure 2 and Figure 9 shown, a jumper wire (not shown in the figure) is connected between at least one fourth screw hole 218 and its corresponding fifth screw hole 313. Exemplarily, in this embodiment, 2 jumper wires are provided at the connection between each connection port 215 and its corresponding mating port 310, and each jumper wire connects the stainless steel external wire tube 3 and the box body 21 to improve the electrical conductivity between the external wire tube 3 and the wire box 2.

[0124] As Figure 1 and Figure 2 shown, a plurality of mounting lugs 200 are provided at the bottom of the box body 21. The mounting lugs 200 are provided with third screw holes 201 through which the second screw 27 passes to fix the wire box 2 to the base layer of the building. Exemplarily, in this embodiment, 4 mounting lugs 200 are provided, which are respectively arranged at the four corners of the bottom of the box body 21. By passing the second screw 27 through the third screw holes 201 on the mounting lugs 200, the wire box 2 is integrally fixed in the base layer of the building, which can well fix the wire box 2 and prevent the wire box 2 from moving due to the extrusion of the concrete layer.

[0125] Although the present utility model has been illustrated and described by referring to some preferred embodiments thereof, those of ordinary skill in the art should understand that the above content is a further detailed description of the present utility model in combination with specific embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present utility model.

Claims

1. A wire box for sealing connection with an external wire pipe, characterized in that, The wire box includes: a box body including an outlet and a connection port; wherein, a first convex portion is circumferentially provided around the outlet; a first seal is sleeved outside the first convex portion; a cover body covers the outlet along a first direction, and the cover body squeezes the first seal along the first direction; the first direction is perpendicular to the cross-section of the outlet; and / or, a second convex portion is circumferentially provided around the connection port; a second seal is sleeved outside the second convex portion, and the external wire tube is used to squeeze the second seal along a second direction so that the external wire tube and the connection port are sealingly connected; the second direction is perpendicular to the cross-section of the connection port.

2. The wire box according to claim 1, characterized in that, Before the cover body squeezes the first seal, along the first direction, the first seal protrudes from the first convex portion, and the lower surface of the cover body and the first convex portion are abutted against each other along the first direction.

3. The wire box according to claim 2, wherein, The lower surface of the cover body includes a first extrusion plane, and the first extrusion plane and the first convex portion are abutted against each other along the first direction.

4. The wire box according to claim 1, characterized in that, A first groove is provided on the lower surface of the cover body, and the first groove is disposed opposite to the outlet along the first direction. A part of the first convex portion is inserted into the first groove along the first direction and abuts against the bottom wall of the first groove along the first direction.

5. The wire box according to claim 4, wherein Along the first direction, the height of the first seal is lower than that of the first convex portion; the cover body further includes a first extrusion plane, the first extrusion plane is disposed around the first groove, the first extrusion plane protrudes from the lower surface of the cover body along the first direction, and the distance between the first extrusion plane and the surface of the upper end portion of the box body in the first direction is less than the height of the first seal before extrusion.

6. The wire box according to claim 1, characterized in that, The wire box is made of stainless steel.

7. The wire box according to claim 1, characterized in that, The outlet is circular or rectangular.

8. The wire box according to claim 1, characterized in that, The connection port is circular or rectangular.

9. The wire box according to claim 1, wherein, The first seal is a first annular seal ring or a first rectangular seal ring.

10. The wire box according to claim 1, characterized in that, The second seal is a second annular seal ring or a second rectangular seal ring.

11. The wire box according to claim 1, characterized in that, It further includes: a plurality of first screws; The box body includes an upper end portion, the outlet is provided on the upper end portion, and a plurality of first screw holes are spaced apart from each other at the edge of the upper end portion; A plurality of second screw holes are spaced apart from each other at the edge of the cover body, and the plurality of second screw holes correspond to the plurality of first screw holes one by one; Each of the second screw holes and its corresponding first screw hole allows the first screw to pass through so that the cover body and the box body are fixedly connected.

12. The wire box according to claim 1, characterized in that, It further includes: a plurality of second screws; A plurality of mounting lugs are provided at the bottom of the box body, and third screw holes are provided in the mounting lugs, and the third screw holes allow the second screws to pass through to fix the wire box to the base layer of the building.

13. A pipeline system, characterized in that, It includes: the wire box according to any one of claims 1 to 12; an external wire tube including a butt joint portion, and the butt joint portion squeezes the second seal along the second direction.

14. The pipeline system according to claim 13, characterized in that, Before the external wire tube squeezes the second seal, along the second direction, the second seal protrudes from the second convex portion, and the surface of the butt joint portion and the second convex portion are abutted against each other along the second direction.

15. The pipeline system according to claim 14, characterized in that, The surface of the docking part includes a second extrusion plane, and the second extrusion plane abuts against the second convex part along the second direction.

16. The pipeline system according to claim 13, characterized in that, The docking part includes a docking port, and the docking port communicates with the connection port; a second groove is provided around the edge of the docking port, and a part of the second convex part is inserted into the second groove and abuts against the bottom wall of the second groove along the second direction.

17. The pipeline system according to claim 16, wherein Along the second direction, the height of the second seal is lower than that of the second convex part; the docking part further includes a second extrusion plane, the second extrusion plane is arranged around the second groove, the second extrusion plane protrudes from the surface of the docking part along the second direction, and the distance between the second extrusion plane and the surface of the side end of the box body in the second direction is less than the height of the second seal before extrusion.

18. The pipeline system according to claim 13, wherein, It further includes: A plurality of third screws; The box body includes a side end, the connection port is arranged on the side end, and a plurality of fourth screw holes are provided at intervals on the edge of the side end; A plurality of fifth screw holes are provided at intervals on the edge of the docking part of the external wire tube, and the plurality of fifth screw holes correspond to the plurality of fourth screw holes one by one; Each of the fourth screw holes and its corresponding fifth screw hole are for the third screw to pass through, so that the external wire tube is fixedly connected to the box body.

19. The pipeline system according to claim 18, characterized in that, It further includes: A jumper wire; Both the wire box and the external wire tube are made of stainless steel; At least one of the fourth screw holes and its corresponding fifth screw hole are connected by the jumper wire.

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