Butt joint box

Abstract

The utility model relates to the technical field of power transmission, and particularly discloses a butt joint box, which comprises a first shell, a second shell, a conducting piece and a plurality of switching assemblies. Wherein the first shell is provided with a first accommodating cavity; the second shell is arranged in the first shell and is provided with a second accommodating cavity capable of being filled with insulating gas and at least two access ports which are oppositely arranged and are communicated with the second accommodating cavity; the conducting piece is positioned in the second accommodating cavity and is fixedly connected with the second shell; each access port is internally provided with a switching assembly, the switching assembly is provided with a communication channel, one end of the communication channel is communicated with the second containing cavity, the other end of the communication channel is communicated with the outside, and the communication channel is used for inserting a butt joint cable. According to the arrangement, two corresponding butt joint cables can be connected to the conduction piece in the second accommodating cavity, so that conduction is realized; the second accommodating cavity can be sealed, so that damp is avoided, and the safety is improved. And meanwhile, the second shell is prevented from being buried underground, the maintenance efficiency is improved, and the maintenance difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission technical field especially relates to a docking box. BACKGROUND

[0002] The wind power field needs cable transmission, and multiple cables need to be connected to prolong the transmission distance during the transmission process. The cables are generally connected through intermediate joints to realize the conduction between different cables.

[0003] Some domestic wind power fields are located in mountainous areas, and the average temperature is low and the humidity is high for many years, which leads to poor sealing of the intermediate joint, moisture intrusion into the insulation layer, and accidents. Especially some intermediate joints are directly buried underground, and the probability of accidents is higher when encountering cold and rainy seasons. The existing intermediate joint is directly buried underground, and once a fault occurs, the maintenance workload is large, and the operating personnel cannot effectively check the running state of the intermediate joint, which affects the maintenance efficiency and increases the maintenance difficulty.

[0004] Therefore, it is urgent to research a docking box to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a docking box to solve the problem of easy sealing of the intermediate joint in the prior art, which can cause accidents, and low maintenance efficiency and difficulty.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The docking box is characterized by comprising:

[0008] A first shell has a first cavity.

[0009] A second shell is arranged inside the first shell and has a second cavity filled with insulating gas and at least two opposite inlet ports connected to the second cavity.

[0010] A conduction piece is located in the second cavity and is fixed to the second shell.

[0011] A plurality of adapter assemblies are arranged in the inlet ports, and the adapter assemblies have a communication channel, one end of which is connected to the second cavity, and the other end is connected to the outside, and the communication channel is used for inserting the docking cable.

[0012] As an optional technical scheme of the docking box, the adapter assembly comprises a double-pass sleeve and a T-shaped joint, the double-pass sleeve is partially arranged in the inlet port, and the communication channel comprises a first channel arranged in the double-pass sleeve and a second channel arranged in the T-shaped joint and connected to the first channel.

[0013] As an optional technical scheme of the docking box, the T-shaped joint further comprises a third channel communicated with the second channel, and a blocking member capable of blocking the third channel, and the third channel is capable of inserting the branch cable.

[0014] As an optional technical scheme of the docking box, the conducting member is a copper bar.

[0015] As an optional technical scheme of the docking box, the first shell comprises a first shell body and a first cover body capable of being covered on the first shell body, and the first cover body and the first shell body form the first cavity when the first cover body is covered on the first shell body.

[0016] As an optional technical scheme of the docking box, the first shell further comprises a supporting assembly, the first cover body is hinged to the first shell body, and the supporting assembly is capable of supporting the first cover body when the first cover body is opened, and the first shell further comprises a first handle provided on the first cover body.

[0017] As an optional technical scheme of the docking box, the supporting assembly comprises a supporting rod and a sliding block, one end of the supporting rod is hinged to the first shell body, the other end of the supporting rod is hinged to the sliding block, the sliding block is slidably arranged on the first cover body, and the sliding direction of the sliding block is perpendicular to the rotation axis of the first cover body.

[0018] As an optional technical scheme of the docking box, the second shell comprises a second shell body and a second cover body, the second cavity is arranged in the second shell body, the second shell body has an operation opening communicated with the second cavity, and the second cover body is covered on the second shell body and capable of blocking the operation opening.

[0019] As an optional technical scheme of the docking box, the inner surface of the first shell is coated with an anti-breakdown coating; and / or,

[0020] The insulating gas is sulfur hexafluoride gas.

[0021] As an optional technical scheme of the docking box, the docking box further comprises a lightning protection assembly, a temperature and humidity controller, and a pressure gauge, wherein the lightning protection assembly is used for lightning protection, the temperature and humidity controller is used for controlling the temperature and humidity in the first cavity, and the pressure gauge is used for detecting the air pressure in the second cavity.

[0022] The docking box has the following beneficial effects:

[0023] The utility model provides a docking box, this docking box includes first casing and second casing, among them, second casing contains in first casing, second casing has the second cavity that fills with insulating gas, and the lead -through piece is located in the second cavity, the adapter assembly is located in the interface access of intercommunication second cavity, and the intercommunication channel of adapter assembly can communicate with second cavity, and docking cable can pass through intercommunication channel, and is connected with lead -through piece, thereby realized two docking cable's lead -through, because second cavity can seal, avoid damps, improved security. At the same time, avoid burying second casing in the ground, improved the repair efficiency, reduced the repair difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the utility model embodiment, the following will be needed to use the drawings in the utility model embodiment description briefly introduced, obviously, the following description in the drawings only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, according to the content of the utility model embodiment and these drawings, other drawings can be obtained.

[0025] Figure 1 For the structure schematic diagram of docking box in the utility model embodiment.

[0026] In the drawing:

[0027] 1000, docking cable;

[0028] 100, first casing;110, first casing body;120, first cover body;121, support assembly;122, first handle;

[0029] 200, second casing;210, second cavity;220, second cover body;230, second handle;

[0030] 300, lead -through piece;

[0031] 400, adapter assembly;410, double -sleeve;420, T joint;

[0032] 500, pressure gauge. DETAILED DESCRIPTION

[0033] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described drawings.

[0034] In this application, the terms "include", "comprise" or "have" or any other variations thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that include a list of elements are not limited to those elements, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0035] In this application, the term "and / or", is a description of an associated object, which means that there can be three kinds of relations. For example, A and / or B, can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this application generally indicates that the front and rear associated objects are in a "and / or" relationship.

[0036] In this application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, direct connection refers to the connection of two parts or components without the need for an intermediate part, and indirect connection refers to the connection of two parts or components with at least one intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0037] In this application, those of ordinary skill in the art will understand that the relative terms used in connection with quantities or conditions (such as "about", "approximately", "substantially" and the like) include the values described and have the meaning indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. related to a specific value. Such terms should also be considered to disclose the range defined by the absolute values of the two endpoints. The relative term can refer to a certain percentage (such as 1%, 5%, 10% or more) of the indicated value. The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to a certain degree (such as 1 degree, 5 degrees, 10 degrees or more) added or subtracted from the indicated angle.

[0038] In this application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0039] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, it is also understood in the context that when referring to an element connected to another element "on" or "under", it can be directly connected to another element "on" or "under" or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, left below, right below, front below and back below, etc.

[0040] As shown in Figure 1 The present embodiment provides a docking box, which comprises a first shell 100, a second shell 200, a conducting piece 300 and a plurality of adapter assemblies 400. The first shell 100 has a first cavity; the second shell 200 is arranged inside the first shell 100, and the second shell 200 has a second cavity 210 capable of being filled with insulating gas and at least two access ports oppositely arranged and both communicating with the second cavity 210; the conducting piece 300 is located in the second cavity 210 and is fixedly connected with the second shell 200; each access port is provided with an adapter assembly 400 inside, and the adapter assembly 400 has a communication channel, one end of the communication channel communicates with the second cavity 210, and the other end communicates with the outside, and the communication channel is used for inserting a docking cable 1000.

[0041] The above arrangement enables two corresponding docking cables 1000 to be connected to the conducting piece 300 in the second cavity 210, thereby realizing conduction. Since the second cavity 210 is sealed, it avoids being damp, thereby improving safety. At the same time, the second shell 200 is avoided from being buried underground, thereby improving maintenance efficiency and reducing maintenance difficulty.

[0042] In some embodiments, the adapter assembly 400 comprises a double-pass sleeve 410 and a T-shaped joint 420, the double-pass sleeve 410 is partially located in the access port, and the communication channel comprises a first channel arranged in the double-pass sleeve 410 and a second channel arranged in the T-shaped joint 420 and communicating with the first channel. The docking cable 1000 can pass through the second channel and the first channel and enter the second cavity 210. The double-pass sleeve 410 is fixed to the second shell 200 by screws, and the T-shaped joint 420 comprises a main pipe and a side pipe perpendicularly communicating with the main pipe, and the second channel is arranged in the main pipe. The main pipe is inserted into the first channel.

[0043] The T-shaped joint 420 further comprises a third channel in communication with the second channel, and a blocking member capable of blocking the third channel, the third channel being capable of accommodating a branch cable. The third channel is arranged in the side pipeline. In use, the blocking member blocks one end of the third channel away from the second channel. When it is necessary to divide the mating cable 1000 into two branches, the blocking member is opened, and the branch cable is inserted into the third channel and in communication with the mating cable 1000. The branch cable is inserted into the second cavity 210 and connected to the conducting member 300.

[0044] Generally, three mating cables 1000 are required for power transmission, and three mating operations are required for mating. Therefore, the mating box has six switching assemblies 400, and three conducting members 300. Considering that the conducting member 300 has insulating gas inside, in some embodiments, the mating cable 1000 inserted into the second cavity 210 can be a split bare conductor, i.e., the insulating layer around the mating cable 1000 in the second cavity 210 is stripped, and the conducting member 300 is a copper bar to fix and connect the end of the bare conductor, so that the distance between adjacent conducting members 300 is reduced, the internal space of the second shell 200 is reduced, and the volume of the second shell 200 is reduced, thereby saving the overall space. In some embodiments, the insulating gas is sulfur hexafluoride gas.

[0045] In some embodiments, the first shell 100 comprises a first shell body 110 and a first cover 120 capable of being arranged on the first shell body 110, and the first cover 120 seals the first shell body 110 to form a first cavity. The above arrangement makes it convenient to connect the mating cable 1000 to the conducting member 300 when the first cover 120 is opened.

[0046] The second shell 200 comprises a second shell body and a second cover 220, the second cavity 210 is arranged in the second shell body, the second shell body has an operation port in communication with the second cavity 210, and the second cover 220 is arranged on the second shell body and capable of blocking the operation port. The first shell body 110 has a communication port in communication with the first cavity, and the second cover 220 is located in the communication port.

[0047] In use, the insulating gas is released, the first cover 120 and the second cover 220 are opened, then the corresponding two mating cables 1000 are respectively inserted into the corresponding two communication channels, and the two corresponding mating cables 1000 are connected to the conducting member 300 to realize communication; then the second cover 220 is closed, the second cavity 210 is evacuated, and finally the second cavity 210 is filled with insulating gas, and the first cover 120 is closed, completing the wiring.

[0048] To further improve the convenience of operation, the first shell 100 further comprises a supporting assembly 121, the first cover 120 is hinged to the first shell body 110 through a rotating pin, and the supporting assembly 121 can support the first cover 120 when the first cover 120 is opened. In some embodiments, the supporting assembly 121 comprises a supporting rod and a sliding block, one end of the supporting rod is hinged to the first shell body 110, the other end is hinged to the sliding block, the sliding block is slidingly arranged on the first cover 120, and the sliding direction is perpendicular to the axis of the rotating pin, wherein the sliding block and the first cover 120 have a sliding damping, so that the first cover 120 is automatically supported by the supporting assembly 121 after being opened, further improving the operation efficiency and convenience. The axis of the rotating pin is the rotating axis of the first cover 120.

[0049] Further, the first shell 100 further comprises a first handle 122 arranged on the first cover 120 for an operator to hold, facilitating the opening of the first cover 120. Similarly, the second handle 230 is also arranged on the second cover 220.

[0050] To improve safety, in some embodiments, at least the inner surface of the first shell 100 is coated with a puncture-resistant coating. The inner surface and the outer surface of the first shell 100 are both coated with a puncture-resistant coating. In some embodiments, the docking box further comprises a lightning protection assembly for lightning protection. The docking box further comprises a temperature and humidity controller for controlling the temperature and humidity in the first cavity. The docking box further comprises a pressure gauge 500 for detecting the air pressure in the second cavity 210. Wherein the lightning protection assembly, the temperature and humidity controller and the pressure gauge 500 can be set by using the prior art, which will not be described in detail here.

[0051] Wherein, the second shell body has a vent communicating with the second cavity 210, the vent communicates with the inflation device through a communication pipeline, and the pressure gauge 500 is arranged on the communication pipeline. Wherein, the communication pipeline is communicated with a transfer pipe and a gas discharge pipe, and the vacuumizing device is communicated with the communication pipeline through the transfer pipe. Each pipeline is provided with a valve body to control the on-off. Wherein, when the second cover 220 is not opened, the second cavity 210 remains in a sealed state, and can release gas, vacuumize and fill insulation gas through the communication pipeline.

[0052] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A docking box, characterized in that The application relates to a connecting box. The connecting box comprises a first shell (100) with a first cavity, a second shell (200) arranged in the first shell (100) and having a second cavity (210) filled with insulating gas and at least two opposite access ports each communicating with the second cavity (210), a conducting member (300) arranged in the second cavity (210) and fixedly connected with the second shell (200), and a plurality of adapter assemblies (400), each of which is arranged in the access port and has a communication channel, one end of the communication channel communicating with the second cavity (210) and the other end communicating with the outside, and the communication channel being used for inserting a mating cable (1000). The adapter assembly (400) comprises a double-pass sleeve (410) and a T-shaped joint (420), the double-pass sleeve (410) is partially arranged in the access port, and the communication channel comprises a first channel arranged in the double-pass sleeve (410) and a second channel arranged in the T-shaped joint (420) and communicating with the first channel. The T-shaped joint (420) further comprises a third channel communicating with the second channel and a blocking member capable of blocking the third channel, and the third channel is capable of being inserted with a branch cable. The conducting member (300) is a copper bar.

2. The docking box of claim 1, wherein, The first shell (100) comprises a first shell body (110) and a first cover (120) capable of being arranged on the first shell body (110), and when the first cover (120) is arranged on the first shell body (110), the first cover (120) and the first shell body (110) form the first cavity.

3. The docking box of claim 2, wherein, The first shell (100) further comprises a support assembly (121), the first cover (120) is hingedly connected with the first shell body (110), and when the first cover (120) is opened, the support assembly (121) is capable of supporting the first cover (120), and the first shell (100) further comprises a first handle (122) arranged on the first cover (120).

4. The docking station of claim 1, wherein, The support assembly (121) comprises a support rod and a sliding block, one end of the support rod is hingedly connected with the first shell body (110), the other end is hingedly connected with the sliding block, and the sliding block is slidingly arranged on the first cover (120) and the sliding direction is perpendicular to the rotation axis of the first cover (120).

5. The docking station of any one of claims 1-4, wherein, The second shell (200) comprises a second shell body and a second cover (220), the second cavity (210) is arranged in the second shell body, the second shell body has an operation port communicating with the second cavity (210), and the second cover (220) is arranged on the second shell body and capable of blocking the operation port.

6. The docking box of claim 5, wherein, The inner surface of the first shell (100) is coated with anti-breakdown paint; and / or 7. The docking box of claim 6, wherein, The insulating gas is sulfur hexafluoride gas.

8. The docking station of any one of claims 1-4, wherein, The connecting box further comprises a lightning protection assembly, a temperature and humidity controller and a pressure gauge (500), wherein the lightning protection assembly is used for lightning protection, the temperature and humidity controller is used for controlling the temperature and humidity in the first cavity, and the pressure gauge (500) is used for detecting the air pressure in the second cavity (210).

9. The docking station of any one of claims 1-4, wherein, ​ ​ 10. The docking station of any one of claims 1-4, wherein, ​

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