Cross interconnection box with box-opening-free detection function

Abstract

The utility model relates to a cross interconnection box with a box-opening-free detection function, which comprises a box body, a box door arranged at the front end of the box body, a cable protection layer protector, a conductive copper bar and a wire clamp arranged in the box body, an insulating plate arranged between the box door and the box body and fixedly arranged on the box door, and a conductive plate rotationally arranged in the box body. The current-conducting plate is located between the insulating plate and the cable protection layer protector and makes contact with the cable protection layer protector through rotation, a contact plate is arranged on the insulating plate in a sliding mode, the contact plate is electrically connected with the current-conducting plate by sliding backwards, the front end of the contact plate is connected with a contact end, and the contact end extends forwards to penetrate through the box door. The insulation sleeve is sleeved between the contact end and the box door, in the structure, the box door does not need to be frequently opened for detection of the cable protection layer protector, the contact end can be electrified only when the conductive plate and the contact plate move, and the insulation sleeve and the insulation plate are arranged on the box door, so that the safety in the detection process can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cross-connection boxes, in particular to a cross-connection box with a box-free detection function. Background Art

[0002] In the daily operation, maintenance and inspection of the traditional high-voltage cable line grounding system, it is often necessary to open the door of the cross-connection box to inspect the cable metal sheath and / or cable sheath protector in the cross-connection box. However, this operation step requires frequent opening of the box cover, which increases the workload of cable maintenance for the staff. At present, high-voltage cable cross-connection boxes are required to have a certain waterproof level, and frequent opening of the box door is likely to accelerate the aging speed of waterproof equipment such as the sealing ring between the box door and the box body. If the staff encounters improper assembly problems during repeated installation of the box door, it may cause water leakage, which may cause failure of the high-voltage cable line system. Utility Model Content

[0003] The utility model provides a cross-connection box with a box-free detection function, which solves the above-mentioned problems existing in the use process of the prior art.

[0004] The technical solution of the utility model is achieved as follows: a cross-connection box with a box-free detection function, comprising a box body, a box door is arranged at the front end of the box body, a cable protective layer protector, a conductive copper busbar and a wire clamp are arranged in the box body, an insulating plate is arranged between the box door and the box body, the insulating plate is fixedly arranged on the box door, a conductive plate is rotatably arranged in the box body, the conductive plate is located between the insulating plate and the cable protective layer protector, the conductive plate contacts the cable protective layer protector by rotating, a contact plate is slidably arranged on the insulating plate, the contact plate is electrically connected to the conductive plate by sliding backward, a contact end is connected to the front end of the contact plate, the contact end extends forward to penetrate the box door, and an insulating sleeve is sleeved between the contact end and the box door.

[0005] The utility model is further configured as follows: an insulating shaft is fixedly arranged on the conductive plate, the insulating shaft is rotatably arranged in the box, and one end of the insulating shaft passes out of the box.

[0006] The utility model is further configured as follows: a sealing ring is arranged on the insulating rotating shaft, and the sealing ring is used to seal the joint between the insulating rotating shaft and the outer side wall of the box body.

[0007] The utility model is further configured as follows: the insulating rotating shaft is arranged at one end of the box body close to the box door and the connection point with the conductive plate is close to the end of the conductive plate.

[0008] The utility model is further configured as follows: a contact piece is rotatably arranged on the end of the conductive plate away from the insulating rotating shaft, and a torsion spring is arranged between the contact piece and the conductive plate.

[0009] The utility model is further configured as follows: a guide column extending backward is arranged on the insulating plate, the contact plate is slidably connected to the guide column, and an elastic supporting member is arranged between the rear end of the guide column and the rear end of the contact plate.

[0010] The utility model is further configured as follows: the insulating sleeve protrudes forward from the box door, and an insulating cover is threadedly connected to the outer side wall of the insulating sleeve.

[0011] In summary, the beneficial effects of the present invention are:

[0012] 1. By adopting this structure, the staff does not need to frequently open the box door to detect the cable protective layer protector. At the same time, the conductive plate and the contact plate need to be displaced for the electrical connection between the contact end and the cable protective layer protector, and the box door is provided with an insulating sleeve and an insulating plate to prevent the box door from being conductive, thereby improving the safety during the detection process.

[0013] 2. The contact piece can increase the contact area between the conductive plate and the cable protective layer protector, so that the electrical connection between the conductive plate and the cable protective layer protector is stabilized.

[0014] 3. Under the action of the insulating shaft, the conductive plate can be away from the cable protective layer protector when not electrically connected to the cable protective layer protector, thereby preventing the conductive plate from accidentally transmitting electricity to the contact plate.

[0015] 4. The sealing ring and insulating sleeve are used to prevent water from penetrating into the box.

[0016] 5. The insulating cover is used to insulate the contact end. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a rear view of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the cross-section structure in the AA direction;

[0020] Figure 3 for Figure 2A local enlarged schematic diagram of the middle A;

[0021] Figure 4 for Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0022] Figure 5 It is a top view of the utility model;

[0023] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure in the BB direction;

[0024] Figure 7 It is a diagram showing the local structure of the utility model.

[0025] Reference numerals in the figure: 11 box body, 12 box door, 13 cable protective layer protector, 14 conductive copper busbar, 15 wire clamp, 21 insulating plate, 22 conductive plate, 23 contact plate, 231 contact end, 24 insulating sleeve, 25 insulating shaft, 26 contact piece, 27 torsion spring, 28 guide column, 29 elastic supporting member, 30 insulating cover. DETAILED DESCRIPTION

[0026] The following will be combined with the attached embodiment of the utility model Figure 1-7 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] like Figures 1 to 7 As shown, the utility model discloses a cross-connection box with a box-free detection function, including a box body 11, a box door 12 is arranged at the front end of the box body 11, a cable protective layer protector 13, a conductive copper busbar 14 and a wire clamp 15 are arranged in the box body 11, and the arrangement of the cable protective layer protector 13, the conductive copper busbar 14 and the wire clamp 15 in the box body 11 is the same as the prior art and the drawings of the utility model provide structural references, so they are not described in detail.

[0029] An insulating plate 21 is arranged between the box door 12 and the box body 11, and the insulating plate 21 is fixedly arranged on the box door 12; in addition, a conductive plate 22 for electrically connecting to the cable protective layer protector 13 is rotatably arranged in the box body 11, and the conductive plate 22 is located between the insulating plate 21 and the cable protective layer protector 13, and the conductive plate 22 contacts and separates from the cable protective layer protector 13 by rotation; a contact plate 23 is slidably arranged on the insulating plate 21, and the contact plate 23 is electrically connected to the conductive plate 22 by sliding backward, and the front end of the contact plate 23 is connected to a contact end 231, which extends forward to penetrate the box door 12, and an insulating sleeve 24 is sleeved between the contact end 231 and the box door 12.

[0030] The working principle of this structure is: when the staff needs to test the cable protective layer protector 13, they can connect the test mechanism to the contact end 231, and then rotate the conductive plate 22 to make the conductive plate 22 touch the cable protective layer protector 13, and then use the test mechanism to push the contact end 231 backward to make the contact plate 23 and the conductive plate 22 energized, and then the test can be carried out.

[0031] The rotation scheme of the conductive plate 22 is as follows: an insulating shaft 25 is fixedly arranged on the conductive plate 22, the insulating shaft 25 is arranged at one end of the box body 11 close to the box door 12 and the connection point with the conductive plate 22 is close to the end of the conductive plate 22, and the insulating shaft 25 is rotatably arranged in the box body 11 and one end passes out of the box body 11, and in addition, a sealing ring 251 is arranged on the insulating shaft 25, and the sealing ring 251 is used to block the joint between the insulating shaft 25 and the outer wall of the box body 11 to prevent water from penetrating into the box body 11 from the joint between the insulating shaft 25 and the box body 11. With this structure, when the conductive plate 22 does not need to work, the insulating shaft 25 can be rotated to change the position of the conductive plate 22 in the box body 11, so that the conductive plate 22 is away from the cable protective layer protector 13.

[0032] In order to keep the electrical connection between the conductive plate 22 and the cable protective layer protector 13 in a relatively stable state, a contact piece 26 is rotatably provided on the end of the conductive plate 22 away from the insulating shaft 25, and a torsion spring 27 is provided between the contact piece 26 and the conductive plate 22. Through this structure, the contact piece 26 can always be in contact with the cable protective layer protector 13 within a certain rotation range of the conductive plate 22.

[0033] The sliding scheme of the contact plate 23 is as follows: a guide column 28 extending backward is provided on the insulating plate 21, and the contact plate 23 is slidably connected to the guide column 28. At the same time, an elastic supporting member 29 is provided between the rear end of the guide column 28 and the rear end of the contact plate 23. This structure can automatically reset forward when the contact end 231 is not pushed backward, thereby disconnecting it from the conductive plate 22.

[0034] The insulating sleeve 24 protrudes forward from the box door 12 , and an insulating cover 30 is threadedly connected to the outer wall of the insulating sleeve 24 . This structure can be used to prevent the contact end 231 from being exposed to the outside air.

[0035] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cross-connection box with a box-free detection function, comprising a box body (11), a box door (12) being arranged at the front end of the box body (11), a cable protective layer protector (13), a conductive copper busbar (14) and a wire clamp (15) being arranged inside the box body (11), characterized in that: An insulating plate (21) is arranged between the box door (12) and the box body (11), the insulating plate (21) being fixedly arranged on the box door (12), a conductive plate (22) being rotatably arranged in the box body (11), the conductive plate (22) being located between the insulating plate (21) and the cable protective layer protector (13), the conductive plate (22) being in contact with the cable protective layer protector (13) by rotating, a contact plate (23) being slidably arranged on the insulating plate (21), the contact plate (23) being electrically connected to the conductive plate (22) by sliding backward, a contact end (231) being connected to the front end of the contact plate (23), the contact end (231) extending forward to penetrate the box door (12), an insulating sleeve (24) being sleeved between the contact end (231) and the box door (12).

2. A cross-connection box with a box-free detection function according to claim 1, characterized in that: An insulating rotating shaft (25) is fixedly disposed on the conductive plate (22), and the insulating rotating shaft (25) is rotatably disposed in the box body (11), with one end of the insulating rotating shaft (25) extending outwardly from the box body (11).

3. A cross-connection box with a box-free detection function according to claim 2, characterized in that: The insulating rotating shaft (25) is provided with a sealing ring (251), and the sealing ring (251) is used to seal the joint between the insulating rotating shaft (25) and the outer side wall of the box body (11).

4. The cross-connection box with the function of non-opening detection according to claim 2, characterized in that: The insulating rotating shaft (25) is arranged at one end of the box body (11) close to the box door (12), and the connection point with the conductive plate (22) is close to the end of the conductive plate (22).

5. The cross-connection box with the function of non-opening detection according to claim 4, characterized in that: A contact piece (26) is rotatably provided on the end of the conductive plate (22) away from the insulating rotating shaft (25), and a torsion spring (27) is provided between the contact piece (26) and the conductive plate (22).

6. The cross-connection box with the function of non-opening detection according to claim 1, characterized in that: A guide column (28) extending backwards is provided on the insulating plate (21), the contact plate (23) is slidably connected to the guide column (28), and an elastic supporting member (29) is provided between the rear end of the guide column (28) and the rear end of the contact plate (23).

7. A cross-connection box with a box-free detection function according to claim 6, characterized in that: The insulating sleeve (24) protrudes forward from the box door (12), and an insulating cover (30) is threadedly connected to the outer wall of the insulating sleeve (24).

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