Junction box for embedded equipment on ship

Abstract

The invention provides a junction box for embedded equipment on a ship. The junction box comprises a box body and a pressing ring. A plurality of wire connecting pipes are arranged on the side wall of the box body, a detachable mounting panel is arranged on the front surface of the box body, a mounting notch is formed in the mounting panel, and a bearing ring is arranged in the mounting notch. The pressing ring is detachably arranged in the mounting notch and located above the bearing ring, and a first sealing ring is arranged between the bottom face of the pressing ring and the top face of the bearing ring. The first sealing ring is provided with a plurality of containing notches which are annularly arranged, a U-shaped vibration reduction piece with the position adjustable is arranged in each containing notch, an opening of each U-shaped vibration reduction piece faces the bottom face of the pressing ring, and the bottom end of each U-shaped vibration reduction piece is flush with the bottom face of the first sealing ring. According to the junction box for the embedded equipment on the ship, the influence of vibration on the embedded equipment can be reduced, and the junction box has a good sealing effect.

Description

Technical Field

[0001] The invention belongs to the field of electrical equipment, and in particular relates to a junction box for embedded equipment on board a ship. Background Art

[0002] Marine diesel engines are a common ship power equipment. They are widely used due to their high thermal efficiency, good economy, easy starting and strong adaptability. Marine diesel engine security system is a key device to ensure the safe and stable operation of diesel engines. It can monitor the various operating parameters of diesel engines in real time. Once the parameters exceed the normal range or abnormal conditions occur, the system will respond quickly, remind the crew through automatic alarms and take emergency measures, so as to avoid damage to the diesel engine due to failure and ensure the safety of the ship's navigation.

[0003] Common marine diesel engine security systems generally use embedded installation. However, in the high vibration and high humidity environment inside the cabin, the wiring devices of traditional embedded devices are prone to loosening, and the inside of the junction box is easily affected by moisture, which makes the embedded device unable to send and receive signals, thus affecting the normal operation of the security system. Summary of the invention

[0004] In view of this, the present invention aims to provide a junction box for embedded devices on board a ship to solve the above technical problems.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] A junction box for embedded devices on board ships, comprising a box body and a clamping ring; a plurality of wire connecting pipes are arranged on the side wall of the box body, a detachable installation panel is arranged on the front of the box body, a mounting cutout for accommodating the embedded device is arranged on the installation panel, and a bearing ring is arranged inside the mounting cutout; the clamping ring is detachably arranged in the mounting cutout, the clamping ring is located above the bearing ring, and a first sealing ring is arranged between the bottom surface of the clamping ring and the top surface of the bearing ring; the first sealing ring is provided with a plurality of accommodating cutouts arranged in an annular shape, each accommodating cutout is provided with a U-shaped vibration damping plate with adjustable position, the opening of the U-shaped vibration damping plate faces the bottom surface of the clamping ring, and the bottom end of the U-shaped vibration damping plate is flush with the bottom surface of the first sealing ring.

[0007] Furthermore, connecting plates are provided at both ends of the U-shaped vibration damping plate, and positioning pins are provided on the connecting plates; a plurality of positioning hole groups are provided on the bottom surface of the clamping ring, and the plurality of positioning hole groups are arranged one by one inside the plurality of accommodating cutouts; each of the positioning hole groups includes a plurality of plug-in holes for accommodating the positioning pins, and the plurality of plug-in holes are arranged along the length direction of the accommodating cutout.

[0008] Furthermore, the distance between any two adjacent plug holes is smaller than the opening width of the U-shaped vibration damping plate.

[0009] Furthermore, an insert ring is provided on the bottom surface of the clamping ring, and the insert ring is inserted into the inside of the carrying ring. A positioning protrusion is provided on the inner wall of the carrying ring, and a positioning groove for accommodating the positioning protrusion is provided on the outer wall of the insert ring.

[0010] Furthermore, a plurality of wiring terminals are provided inside the box body, and the plurality of wiring terminals are arranged in a ring shape around the installation cutout, and a cable fixing clip is provided on each wiring terminal.

[0011] Furthermore, a limiting ring is provided on the top of the clamping ring, the outer diameter of the limiting ring is larger than the inner diameter of the mounting cutout, and a second sealing ring is provided between the limiting ring and the mounting plate surface.

[0012] Furthermore, a cable stuffing box is provided at the end of any one of the wire connecting pipes.

[0013] Furthermore, a plurality of wire rope vibration dampers are provided on the back of the box body.

[0014] Compared with the prior art, the junction box for embedded devices on board the present invention has the following advantages:

[0015] (1) The present invention creates a junction box for embedded devices on board ships, which has a load-bearing ring inside the installation cutout and a detachable clamping ring, and a first sealing ring between the clamping ring and the load-bearing ring. When installing the embedded device, the clamping ring and the first sealing ring can block the gap between the embedded device and the installation cutout, thereby improving the sealing effect inside the box body. In addition, the device is provided with a plurality of accommodating cutouts on the first sealing ring, and a position-adjustable U-shaped vibration-damping plate is provided in each accommodating cutout. When in use, the U-shaped vibration-damping plate can absorb vibrations through elastic deformation, thereby reducing the shaking of the embedded device. The staff can also adjust the position of the U-shaped vibration-damping plate in the accommodating cutout according to the vibration orientation, thereby further improving the vibration-damping ability of the U-shaped vibration-damping plate.

[0016] (2) The present invention creates a junction box for embedded equipment on board a ship, and a wire rope vibration damper is provided on the back of the box body, thereby reducing the vibration amplitude of the box body as a whole. Secondly, the device is provided with a cable stuffing box at the end of the wire pipe, which can further improve the sealing effect inside the box body. In addition, the device is also provided with a cable fixing clamp on the wiring terminal, and the abnormal movement of the cable can be restrained by setting a cable fixing frame to avoid a virtual connection between the cable and the wiring terminal due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the front structure of a junction box for embedded devices on board a ship according to an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the back structure of a junction box for embedded devices on board a ship according to an embodiment of the present invention;

[0020] Figure 3 An exploded view of the related structures of the installation cover plate and the clamping ring according to the embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the bottom structure of the clamping ring according to an embodiment of the present invention;

[0022] Figure 5 A cross-sectional view of the clamping ring according to an embodiment of the present invention along the position of the U-shaped vibration damping plate;

[0023] Figure 6 A schematic diagram of the structure of a U-shaped vibration damping plate according to an embodiment of the present invention;

[0024] Figure 7 The present invention is a schematic structural diagram of the wiring terminal described in the embodiment.

[0025] Description of reference numerals:

[0026] 1-box body; 11-conductor pipe; 111-cable stuffing box; 2-installation panel; 21-installation cutout; 22-bearing ring; 221-positioning protrusion; 3-pressing ring; 31-plug-in hole; 32-plug-in ring; 321-positioning groove; 33-limiting ring; 4-first sealing ring; 41-accommodating cutout; 5-U-shaped vibration damping plate; 51-connecting plate; 52-positioning pin; 6-connecting terminal; 61-cable fixing clamp; 7-second sealing ring; 8-wire rope vibration damper. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] A junction box for embedded equipment on board a ship, the structure of which can be Figures 1 - 7 In this embodiment, the junction box for embedded devices on board comprises a box body 1 and a clamping ring 3, wherein the box body 1 is used to provide space for circuit connection of the embedded device, and the clamping ring 3 is used to fix the embedded device to reduce vibration and improve the sealing effect around the embedded device.

[0032] Specifically, the side wall of the box body 1 is provided with a plurality of wire pipes 11 for facilitating the entry of cables into the box body 1, a detachable installation panel 2 is provided on the front of the box body 1, and an installation cutout 21 for accommodating an embedded device is provided on the installation panel 2, and the clamping ring 3 is detachably connected and arranged in the installation cutout 21. When in use, the staff can first sleeve the clamping ring 3 on the outside of the embedded device, and then insert the clamping ring 3 and the end of the embedded device into the installation cutout. At this time, the clamping ring 3 can not only fix the embedded device and improve the plug-in reliability of the embedded device, but also block the gap between the embedded device and the installation cutout 21, thereby improving the sealing effect around the embedded device.

[0033] To improve the sealing ability between the pressing ring 3 and the installation notch 21, a bearing ring 22 should be provided inside the installation notch 21. After the pressing ring 3 is inserted into the installation notch 21, the pressing ring 3 should be located above the bearing ring 22, and a first sealing ring 4 is also provided between the bottom surface of the pressing ring 3 and the top surface of the bearing ring 22. Through the above settings, a larger contact area can be obtained between the pressing ring 3 and the installation notch 21, and the gap between the pressing ring 3 and the bearing ring 22 is blocked by the first sealing ring 4, further reducing the probability of water vapor in the external environment entering the inside of the box body 1 along the splicing gap.

[0034] Optionally, a limiting ring 33 can be provided at the top of the pressing ring 3 in this embodiment. The outer diameter of the limiting ring 33 should be larger than the inner diameter of the installation notch 21, and a second sealing ring 7 can be provided between the limiting ring 33 and the installation plate surface. By setting the second sealing ring 7, the sealing effect of the top area of the pressing ring 3 can be improved, and a double sealing structure can be formed with the first sealing ring 4, further strengthening the sealing ability near the pressing ring 3.

[0035] As an optional implementation manner of this embodiment, to further improve the sealing effect of the device, a cable stuffing box 111 can be provided at the end of any wire connection pipe 11. By setting the cable stuffing box 111, the gap between the cable and the inner wall of the wire connection pipe 11 can be blocked to prevent water vapor in the external environment from entering the inside of the box body 1 along the wire connection pipe 11.

[0036] In the prior art, due to the vibration of the internal environment of the cabin during the navigation of the ship, the embedded device is prone to virtual connection or loosening due to vibration. To solve this problem, in this embodiment, a plurality of accommodation notches 41 arranged in a ring shape are provided on the first sealing ring 4, and a U-shaped damping piece 5 with adjustable position is provided inside each accommodation notch 41. As Figure 5 and Figure 6 shown, the opening of the U-shaped damping piece 5 faces the bottom surface of the pressing ring 3, and the bottom end of the U-shaped damping piece 5 is flush with the bottom surface of the first sealing ring 4. When the embedded device is subjected to vibration, the U-shaped damping piece 5 can undergo elastic deformation, thereby absorbing the kinetic energy between the pressing ring 3 and the bearing ring 22, and then achieving the damping effect. Correspondingly, the staff can also adjust the position of the U-shaped damping piece 5 inside the accommodation notch 41 according to the actual vibration direction, so that the U-shaped damping piece 5 is close to the area with a larger vibration amplitude, facilitating the U-shaped damping piece 5 to absorb the kinetic energy generated by the vibration in a timely manner.

[0037] For the convenience of adjusting the position of the U-shaped shock absorber 5, connecting pieces 51 can be provided at both ends of the U-shaped shock absorber 5, and positioning pins 52 are provided on the connecting pieces 51. Multiple positioning hole groups should be provided on the bottom surface of the pressing ring 3, and the multiple positioning hole groups are correspondingly arranged inside multiple receiving notches 41. Each positioning hole group should include multiple insertion holes 31, and the multiple insertion holes 31 are arranged along the length direction of the receiving notch 41. During use, the staff can select the insertion holes 31 according to the actual vibration direction and insert the positioning pins 52 into the insertion holes 31, so as to install the U-shaped shock absorber 5 at an appropriate position.

[0038] Optionally, for the convenience of adjusting the elastic deformation ability of the U-shaped shock absorber 5, the distance between any two adjacent insertion holes 31 in this embodiment should be less than the opening width of the U-shaped shock absorber 5. When the number of insertion holes 31 between the two positioning pins 52 changes, the opening width of the U-shaped shock absorber 5 will change. Therefore, the elastic modulus of the U-shaped shock absorber 5 will change, and the smaller the opening width of the U-shaped shock absorber 5, the greater the elastic modulus. Correspondingly, the degree of elastic deformation of the U-shaped shock absorber 5 under the action of vibration is smaller. The staff can adjust the opening width of the U-shaped shock absorber 5 according to the actual vibration amplitude to meet different shock absorption requirements.

[0039] In addition, to prevent the pressing ring 3 from detaching from the installation notch 21 in a vibrating environment, a splicing ring 32 can also be provided on the bottom surface of the pressing ring 3. A positioning protrusion 221 can be provided on the inner side wall of the bearing ring 22, and a positioning groove 321 for accommodating the positioning protrusion 221 is provided on the outer side wall of the splicing ring 32. When assembling the pressing ring 3 and the installation notch 21, the splicing ring 32 will be inserted into the bearing ring 22. At this time, the positioning protrusion 221 will enter the positioning groove 321, so as to limit the pressing ring 3 and prevent the pressing ring 3 from detaching.

[0040] For the convenience of connecting the embedded device and the cable, multiple wiring terminals 6 can also be provided inside the body 1 in this embodiment, and the multiple wiring terminals 6 are arranged in a ring around the installation notch 21 to facilitate line connection through the wiring terminals 6. Figure 7 As a schematic diagram of the wiring terminal 6, as shown in the figure, a cable fixing clip 61 is provided on the wiring terminal 6. Before connecting the cable and the wiring terminal 6, the staff can clamp and limit the cable through the cable fixing clip 61 to avoid the cable from shaking and further improve the ability of the device to adapt to the vibrating environment.

[0041] As another optional implementation manner of this embodiment, multiple wire rope shock absorbers 8 can also be provided on the back of the box body 1 to reduce the vibration amplitude of the box body 1 by means of the wire rope shock absorbers 8.

[0042] The effects of the above solutions will be described below:

[0043] This embodiment provides a junction box for on-board embedded devices, which can fix and seal the embedded devices through a compression ring, and can absorb the kinetic energy generated by vibration through the elastic deformation of the U-shaped damping piece, avoiding the loosening or poor contact of the embedded devices due to vibration. Secondly, the device can also adjust the position and elastic deformation degree of the U-shaped damping piece according to the orientation and amplitude of the vibration, so as to cope with different vibration scenarios. In addition, the device is also provided with a cable stuffing box and a cable fixing bracket, so as to further improve the sealing effect and prevent abnormal movement of the cable.

[0044] The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A junction box for embedded equipment on board a ship, characterized in that: The invention comprises a box body (1) and a clamping ring (3); a plurality of wire pipes (11) are arranged on the side wall of the box body (1); a detachable installation panel (2) is arranged on the front of the box body (1); a mounting cutout (21) for accommodating an embedded device is arranged on the installation panel (2); a bearing ring (22) is arranged inside the mounting cutout (21); the clamping ring (3) is detachably arranged in the mounting cutout (21); the clamping ring (3) is located on the bearing ring (22) 22), and a first sealing ring (4) is provided between the bottom surface of the clamping ring (3) and the top surface of the bearing ring (22); the first sealing ring (4) is provided with a plurality of accommodating cutouts (41) arranged in a ring shape, each accommodating cutout (41) is provided with a U-shaped vibration-damping plate (5) whose position can be adjusted, the opening of the U-shaped vibration-damping plate (5) faces the bottom surface of the clamping ring (3), and the bottom end of the U-shaped vibration-damping plate (5) is flush with the bottom surface of the first sealing ring (4).

2. A junction box for embedded equipment on board a ship according to claim 1, characterized in that: Both ends of the U-shaped vibration damping plate (5) are provided with connecting plates (51), and positioning pins (52) are provided on the connecting plates (51); a plurality of positioning hole groups are provided on the bottom surface of the clamping ring (3), and the plurality of positioning hole groups are arranged one by one inside the plurality of accommodating cutouts (41); each of the positioning hole groups includes a plurality of plug holes (31) for accommodating the positioning pins (52), and the plurality of plug holes (31) are arranged along the length direction of the accommodating cutouts (41).

3. A junction box for embedded equipment on board a ship according to claim 2, characterized in that: The distance between any two adjacent plug holes (31) is smaller than the opening width of the U-shaped vibration damping plate (5).

4. The junction box for embedded equipment on board a ship according to claim 1, characterized in that: An insert ring (32) is provided on the bottom surface of the clamping ring (3), and the insert ring (32) is inserted into the interior of the carrying ring (22). A positioning protrusion (221) is provided on the inner wall of the carrying ring (22), and a positioning groove (321) for accommodating the positioning protrusion (221) is provided on the outer wall of the insert ring (32).

5. The junction box for embedded equipment on board a ship according to claim 1, characterized in that: A plurality of wiring terminals (6) are arranged inside the box body (1), the plurality of wiring terminals (6) are arranged in a ring shape around the mounting cutout (21), and a cable fixing clamp (61) is provided on each wiring terminal (6).

6. The junction box for embedded equipment on board a ship according to claim 1, characterized in that: A limiting ring (33) is provided on the top of the clamping ring (3), the outer diameter of the limiting ring (33) is larger than the inner diameter of the mounting cutout (21), and a second sealing ring (7) is provided between the limiting ring (33) and the mounting plate surface.

7. The junction box for embedded equipment on board a ship according to claim 1, characterized in that: A cable stuffing box (111) is provided at the end of any one of the conductor pipes (11).

8. The junction box for embedded equipment on board a ship according to claim 1, characterized in that: A plurality of steel wire rope vibration dampers (8) are provided on the back side of the box body (1).

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