Longitudinal waterproof stuffing box for ship

Abstract

The utility model discloses a ship longitudinal waterproof stuffing box which comprises a stuffing box base for a cable to penetrate through, a clamping piece is detachably installed at the lower end of the stuffing box base, and a step groove is formed in the inner wall of the stuffing box base. A first rubber ring, a second rubber ring and a base plate are sequentially arranged in the stuffing box base from top to bottom in a sliding mode, the base plate can abut against the upper portion of the clamping piece, and the upper portion of the first rubber ring can abut against the groove wall of the stepped groove. According to the utility model, water can be effectively prevented from contacting the conductive part of the cable, and external water can be effectively prevented from entering the electric control equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing, in particular to a longitudinal waterproof stuffing box for ships. Background Art

[0002] In ship electronic control systems, stuffing boxes are often used to introduce cables into closed cabins, isolating the internal and external environments of electronic control equipment by means of packing or tightening. Some stuffing boxes can realize the introduction of cables in underwater environments to prevent seawater from entering the electronic control equipment. When the surface of the introduced cable is damaged or water enters along the core wire gap on the external end face, ordinary stuffing boxes cannot prevent seawater from entering the electronic control equipment. Utility Model Content

[0003] The utility model aims to provide a longitudinal waterproof stuffing box for ships to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a longitudinal waterproof stuffing box of a ship, comprising a stuffing box base for the passage of cables, a clamping piece being detachably mounted on the lower end of the stuffing box base, a stepped groove being provided on the inner wall of the stuffing box base, a first rubber ring, a second rubber ring and a pad being slidably placed in sequence from top to bottom in the stuffing box base, the pad being able to interfere with the upper portion of the clamping piece, and the upper portion of the first rubber ring being able to interfere with the groove wall of the stepped groove.

[0005] In an embodiment of the utility model, a sealing cavity is provided in the stuffing box base, and the sealing cavity is used for pouring waterproof sealing filler.

[0006] In an embodiment of the present invention, the inner wall of the pad is configured as an inclined surface.

[0007] In an embodiment of the present invention, the top of the first rubber ring is located below the cable stripping terminal.

[0008] In summary, due to the adoption of the above technology, the beneficial effects of the utility model are:

[0009] In the utility model, by rotating the clamping piece, the clamping piece is made to contact the pad, push the pad, squeeze the second rubber ring and the first rubber ring, make the first rubber ring and the second rubber ring deformed by force, so that the first rubber ring and the second rubber ring are closely attached to the outer skin of the cable, which can effectively prevent water from entering between the outer skin of the cable and the stuffing box; when water passes through the second rubber ring along the cable skin, the first rubber ring expands when encountering water, blocks the entered water, and effectively prevents the water from contacting the stuffing box; when water flows along the gap between the cable core wire and the gap between the cable skin, it will be blocked by the stuffing filled in the longitudinal direction of the sealing cavity, which can effectively prevent the water from contacting the conductive part of the cable, and can effectively prevent the external water from entering the interior of the electric control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the stuffing box base of the utility model;

[0011] Figure 2 It is a schematic diagram of the main cross-section of the utility model;

[0012] Figure 3 For the utility model Figure 2 Enlarged schematic diagram of the structure of part A in the middle.

[0013] In the figure: 1. stuffing box base; 2. clamping piece; 3. stepped groove; 4. first rubber ring; 5. second rubber ring; 6. gasket; 7. sealing chamber; 8. cable core wire; 9. cable. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0015] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the 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.

[0016] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the specification.

[0017] Example 1

[0018] See also Figure 1-Figure 3 The utility model provides a longitudinal waterproof stuffing box for ships, comprising a stuffing box base 1 for passing cables, a clamping piece 2 being detachably mounted on the lower end of the stuffing box base 1, a stepped groove 3 being provided on the inner wall of the stuffing box base 1, a first rubber ring 4, a second rubber ring 5 and a pad 6 being slidably placed in the stuffing box base 1 from top to bottom, the pad 6 being able to abut against the upper part of the clamping piece 2, and the upper part of the first rubber ring 4 being able to abut against the groove wall of the stepped groove 3;

[0019] The stuffing box base 1 is provided with a sealing cavity 7, and the sealing cavity 7 is used for pouring waterproof sealing filler;

[0020] The top of the first rubber ring 4 is located below the cable stripping terminal.

[0021] It should be noted that the clamping member 2 is configured as a threaded tube, and the clamping member 2 is installed at the bottom of the stuffing box base 1 in a threaded installation manner;

[0022] The first rubber ring 4 is configured as water-swellable rubber;

[0023] The stuffing box base 1 is fixed to the bottom of the housing of the electric control device by welding.

[0024] By adopting the above scheme, after the cable 9 is inserted from the lower end of the stuffing box base 1 and passes out from the top of the stuffing box base 1, the clamping member 2 is rotated to make the clamping member 2 contact the pad 6, push the pad 6, squeeze the second rubber ring 5 and the first rubber ring 4, and make the first rubber ring 4 and the second rubber ring 5 deformed by force, so that the first rubber ring 4 and the second rubber ring 5 are closely attached to the outer skin of the cable, which can effectively prevent water from entering between the outer skin of the cable and the stuffing box;

[0025] When water passes through the second rubber ring 5 along the cable skin, the first rubber ring 4 swells when encountering water, blocking the incoming water and effectively preventing the water from contacting the filler;

[0026] When water flows along the gap between the cable core wire 8 and the cable 9 surface, it will be blocked by the filler filled longitudinally in the sealing cavity 7, which can effectively prevent water from contacting the conductive part of the cable 9 and effectively prevent external water from entering the interior of the electronic control equipment.

[0027] See also Figure 2 The inner wall of the pad 6 is arranged as an inclined surface.

[0028] By adopting the above solution, the contact area between the inner wall of the pad 6 and the second rubber ring 5 can be increased. When the second rubber ring 5 is subjected to force, the force-bearing surface of the second rubber ring 5 can better contact the outer skin of the cable 9.

[0029] Working principle: When in use, the cable 9 is inserted from the lower end of the stuffing box base 1, and then passed out from the top of the stuffing box base 1, and then passed through the pad 6, the second rubber ring 5 and the first rubber ring 4 in sequence. By rotating the clamping member 2, the clamping member 2 is made to contact the pad 6, and the pad 6 is pushed to squeeze the second rubber ring 5 and the first rubber ring 4, so that the first rubber ring 4 and the second rubber ring 5 are deformed by force, and the deformed first rubber ring 4 and the second rubber ring 5 are closely attached to the outer skin of the cable, which can effectively prevent water from entering between the outer skin of the cable and the stuffing box;

[0030] When water passes through the second rubber ring 5 along the cable skin, the first rubber ring 4 swells when encountering water, blocking the incoming water and effectively preventing the water from contacting the filler;

[0031] When water flows along the gap between the cable core wire 8 and the cable 9 surface, it will be blocked by the filler filled longitudinally in the sealing cavity 7, which can effectively prevent water from contacting the conductive part of the cable 9 and effectively prevent external water from entering the interior of the electronic control equipment.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A longitudinal waterproof stuffing box for a ship, comprising a stuffing box base (1) for passing a cable, characterized in that: A clamping member (2) is detachably mounted on the lower end of the stuffing box base (1), a stepped groove (3) is provided on the inner wall of the stuffing box base (1), a first rubber ring (4), a second rubber ring (5) and a pad (6) are slidably placed in sequence from top to bottom in the stuffing box base (1), the pad (6) can abut against the upper part of the clamping member (2), and the upper part of the first rubber ring (4) can abut against the groove wall of the stepped groove (3).

2. A ship longitudinal waterproof stuffing box according to claim 1, characterized in that: A sealing cavity (7) is provided in the stuffing box base (1), and the sealing cavity (7) is used for pouring waterproof sealing filler.

3. A ship longitudinal waterproof stuffing box according to claim 1, characterized in that: The inner wall of the pad (6) is arranged as an inclined surface.

4. A ship longitudinal waterproof stuffing box according to claim 1, characterized in that: The top of the first rubber ring (4) is located below the cable stripping terminal.

Images