Smoke detectors, detector back boxes and ships

Abstract

The present invention discloses a smoke probe, a probe back box and a ship, which are used to detect smoke at a ceiling position. The smoke probe includes a cable assembly, a probe body and a probe back box. The probe body is installed on the lower side of the ceiling, and the probe back box is installed on the upper side of the ceiling corresponding to the position of the probe body. The cable assembly is used to connect the probe body and the probe back box. The probe back box includes a covering part and a docking part. The docking part is provided with a through hole and abuts against the ceiling. The cable assembly connects the probe body and the probe back box through the through hole. The covering part is provided with a cable matching part. The cable assembly is connected to the outside through the cable matching part. The covering part is connected to the docking part to form a chamber, and a grounding terminal is provided in the chamber. With the cover of the probe back box, the cable core wire does not need to be exposed on the ceiling, which avoids corrosion by water vapor and increases the service life of the smoke probe.

Description

Technical Field

[0001] The present invention relates to the field of fire fighting technology, and in particular to a smoke probe, a probe back box and a ship. Background Art

[0002] In previous civil ships or marine projects, smoke detectors were usually installed directly below the ceiling of the upper living area, that is, surface installation - drilling holes in the ceiling for the cable to pass through the ceiling and directly enter the interior of the smoke detector to complete the final wiring work. However, since the internal space of the smoke detector is usually relatively small, after the cable wiring is completed, a section of the cable core will be exposed above the ceiling. It is also difficult to protect the exposed part of the cable core in the later stage, and the appearance is not beautiful. At the same time, the hole drilled in the ceiling is usually much larger than the cable core, and it is also difficult to seal it in the later stage. For a long time, moisture and dust will enter the equipment through the holes drilled in the ceiling, which will eventually affect the normal operation and service life of the smoke detector, and it is also difficult to overhaul it in the later stage. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the cable core wire of the smoke detector is exposed on the ceiling, and to provide a smoke detector, a detector back box and a ship.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A smoke sensor is used to detect smoke at a ceiling position, the smoke sensor comprising a cable assembly, a probe body and a probe back box, the probe body being mounted on the lower side of the ceiling, and the probe back box being mounted on the upper side of the ceiling corresponding to the position of the probe body; the probe back box comprising a covering portion and a docking portion, the docking portion being provided with a through hole and abutting against the ceiling, the cable assembly being connected to the probe body via the through hole, the covering portion being provided with a cable mating portion, the cable assembly being connected to the outside via the cable mating portion, the covering portion being connected to the docking portion to form a chamber, and a grounding terminal being provided in the chamber.

[0006] In this solution, the above structure is adopted, one end of the cable assembly is connected to the probe body, and the remaining part is extended into the cover part through the through hole of the docking part of the probe back box and connected to the docking part to form a chamber, and connected to the ground terminal and the cable matching part in the chamber. With the cover of the probe back box, the cable core wire does not need to be exposed on the ceiling, avoiding corrosion by water vapor and dust.

[0007] Preferably, the docking portion is the bottom surface of the probe back box, and the docking portion is used to fit with the ceiling.

[0008] In this solution, the above structure is adopted, and the docking part and the ceiling are fitted together to avoid a gap between the two, thereby preventing dust and water vapor from penetrating. In addition, the docking part and the ceiling are fitted together, and the contact area between the docking part and the ceiling is large, which also facilitates the reliable installation of the probe back box on the ceiling.

[0009] Preferably, the covering portion comprises a side wall and an upper cover, and the upper cover is detachably connected to the side wall.

[0010] In this solution, the above-mentioned structural form is adopted, and the upper cover is detachable relative to the side wall, so that the installer can open the upper cover to operate the cable assembly and connect it to the ground terminal and the cable matching part.

[0011] Preferably, the cable fitting portion is a through hole provided on the side wall.

[0012] In this solution, the above-mentioned structural form is adopted, the cable matching part has a simple structure and low manufacturing cost.

[0013] Preferably, the number of the cable matching parts is two and they are respectively arranged on the side walls at opposite positions.

[0014] In this solution, the above structure is adopted, and two cable matching parts are provided and arranged on opposite side walls, which can increase the operating space during assembly. The cable assembly can be dispersed into two cable matching parts, which is conducive to reducing the structural strength requirements compared to concentrating them in one cable matching part.

[0015] Preferably, the smoke detector further comprises a sealing member arranged at the cable fitting portion, and the covering portion is sealedly connected to the cable assembly via the sealing member.

[0016] In this solution, the above-mentioned structural form is adopted, and the sealing member seals the gap between the covering part and the cable assembly to prevent dust and water vapor from penetrating.

[0017] Preferably, the sealing member is a cable stuffing box.

[0018] In this solution, the above-mentioned structural form is adopted, and the cable stuffing box has a simple structure and low cost.

[0019] A probe back box is used in the above-mentioned smoke probe.

[0020] In this solution, the above structure is adopted, and the cable assembly extends from the through hole of the docking part of the probe back box into the covering part and is connected to the docking part to form a chamber, and is connected to the grounding terminal and the cable matching part in the chamber. With the cover of the probe back box, the cable core wire does not need to be exposed on the ceiling, avoiding corrosion by water vapor and dust.

[0021] A ship is provided with the above-mentioned smoke detector.

[0022] In this solution, the above structure is adopted, and the cable assembly extends from the through hole of the docking part of the probe back box into the covering part and is connected to the docking part to form a chamber, and is connected to the grounding terminal and the cable matching part in the chamber. With the cover of the probe back box, the cable core wire does not need to be exposed on the ceiling, avoiding corrosion by water vapor and dust.

[0023] The positive and progressive effect of the present invention is that the cable assembly extends from the through hole of the docking part of the probe back box into the covering part and is connected to the docking part to form a chamber, and is connected to the ground terminal and the cable matching part in the chamber. With the cover of the probe back box, the cable core wire does not need to be exposed on the ceiling, avoiding corrosion by water vapor and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of the smoke detector in this embodiment.

[0025] Figure 2 Schematic diagram of the structure of the probe back box in this embodiment.

[0026] Figure 3 FIG. 4 is another schematic diagram of the structure of the probe back box in this embodiment.

[0027] Figure 4 Schematic diagram of another structure of the probe back box in this embodiment.

[0028] Description of Reference Numerals

[0029] Cable assembly 1

[0030] Probe body 2

[0031] Probe back box 3

[0032] Covering part 31

[0033] Cable mating portion 311

[0034] Side wall 312

[0035] Upper cover 313

[0036] Docking part 32

[0037] Through hole 321

[0038] Chamber 33

[0039] Ground terminal 331 DETAILED DESCRIPTION

[0040] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0041] like Figure 1-Figure 4 As shown, a smoke sensor is used to detect smoke at a ceiling position. The smoke sensor includes a cable assembly 1, a probe body 2 and a probe back box 3. The probe body 2 is installed on the lower side of the ceiling, and the probe back box 3 is installed on the upper side of the ceiling corresponding to the position of the probe body 2; the probe back box 3 includes a covering portion 31 and a docking portion 32, the docking portion 32 is provided with a through hole 321 and abuts against the ceiling, the cable assembly 1 is connected to the probe body 2 through the through hole 321, the covering portion 31 is provided with a cable matching portion 311, the cable assembly 1 is connected to the outside through the cable matching portion 311, the covering portion 31 is connected to the docking portion 32 and forms a chamber 33, and a grounding terminal 331 is provided in the chamber 33.

[0042] In this solution, the above structure is adopted, one end of the cable assembly 1 is connected to the probe body 2, and the remaining part is extended into the cover part 31 through the through hole 321 of the docking part 32 of the probe back box 3, connected to the docking part 32 and formed into the cavity 33, and connected to the ground terminal 331 and the cable matching part 311 in the cavity 33. With the cover of the probe back box 3, the cable core wire does not need to be exposed on the ceiling, avoiding corrosion by water vapor and dust.

[0043] As a preferred implementation, the docking portion 32 is the bottom surface of the probe back box 3 , and the docking portion 32 is used to fit with the ceiling.

[0044] In this solution, the above-mentioned structural form is adopted, and the docking portion 32 and the ceiling are fitted together to avoid a gap between the two, thereby preventing dust and water vapor from penetrating. In addition, the docking portion 32 and the ceiling are fitted together, and the contact area between the docking portion 32 and the ceiling is large, which also facilitates the reliable installation of the probe back box 3 on the ceiling.

[0045] As a preferred embodiment, the covering portion 31 is a cubic structure, and the covering portion 31 includes a side wall 312 and an upper cover 313 , and the upper cover 313 is detachably connected to the side wall 312 .

[0046] In this solution, the above-mentioned structural form is adopted, and the upper cover 313 is detachable relative to the side wall 312, so that the installer can open the upper cover 313 to operate the cable assembly 1 and connect it to the ground terminal 331 and the cable mating portion 311. Of course, in other embodiments, the cover portion 31 can be any other shape as long as it can form a chamber 33 with the docking portion 32.

[0047] As a preferred implementation, the cable matching portion 311 is a through hole provided on the side wall 312 .

[0048] In this solution, the above-mentioned structural form is adopted, and the cable matching part 311 has a simple structure and low manufacturing cost.

[0049] As a preferred implementation, the number of the cable matching portions 311 is two and they are respectively disposed on the side walls 312 at opposite positions.

[0050] In this solution, the above-mentioned structural form is adopted, and two cable matching parts 311 are set and arranged on the side walls 312 at opposite positions, which can increase the operable space during assembly. The cable assembly can be dispersed into two cable matching parts, which is conducive to reducing the structural strength requirements compared to concentrating in one cable matching part. Of course, in other embodiments, the number of cable matching parts 311 can be flexibly set according to the actual situation of the cable assembly.

[0051] As a preferred embodiment, the smoke detector further includes a sealing member arranged at the cable fitting portion 311 , and the covering portion 31 is sealedly connected to the cable assembly 1 via the sealing member.

[0052] In this solution, the above-mentioned structural form is adopted, and the sealing member seals the gap between the covering part 31 and the cable assembly 1 to prevent dust and water vapor from penetrating.

[0053] As a preferred implementation, the sealing member is a cable stuffing box.

[0054] In this solution, the cable stuffing box adopts the above structure, and the structure is simple and the cost is low. In alternative embodiments, the sealing member can be other structures such as a rubber ring, as long as the gap between the cover portion 31 and the cable assembly 1 can be sealed.

[0055] A probe back box 3 is used in the above-mentioned smoke probe.

[0056] In this solution, the above structure is adopted, and the cable assembly 1 extends from the through hole 321 of the docking part 32 of the probe back box 3 into the covering part 31 and is connected to the docking part 32 to form a cavity 33, and is connected to the grounding terminal 331 and the cable matching part 311 in the cavity 33. With the cover of the probe back box 3, the cable core wire does not need to be exposed on the ceiling, avoiding corrosion by water vapor and dust.

[0057] A ship is provided with the above-mentioned smoke detector.

[0058] In this solution, the above structure is adopted, and the cable assembly 1 extends from the through hole 321 of the docking part 32 of the probe back box 3 into the covering part 31 and is connected to the docking part 32 to form a cavity 33, and is connected to the grounding terminal 331 and the cable matching part 311 in the cavity 33. With the cover of the probe back box 3, the cable core wire does not need to be exposed on the ceiling, avoiding corrosion by water vapor and dust.

[0059] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A smoke detector for detecting smoke at the ceiling, characterized in that: The smoke detector comprises a cable assembly, a detector body and a detector back box, wherein the detector body is mounted on the lower side of the ceiling, and the detector back box is mounted on the upper side of the ceiling corresponding to the position of the detector body; The probe back box includes a covering portion and a docking portion, the docking portion is provided with a through hole and abuts against the ceiling, the cable assembly is electrically connected to the probe body through the through hole, the covering portion is provided with a cable matching portion, the cable assembly is connected to the outside through the cable matching portion, the covering portion is connected to the docking portion and forms a chamber, and a ground terminal is provided in the chamber; The covering portion comprises a side wall and an upper cover, and the upper cover is detachably connected to the side wall; The cable matching portion is a through hole arranged on the side wall; The docking portion is the bottom surface of the probe back box, and the docking portion is used to fit with the ceiling; the number of the cable matching portions is 2 and they are respectively arranged on the side walls at opposite positions.

2. The smoke detector according to claim 1, characterized in that: The smoke detector further comprises a sealing member arranged at the cable fitting portion, and the covering portion is sealed and connected to the cable assembly via the sealing member.

3. The smoke detector according to claim 2, characterized in that: The sealing element is a cable stuffing box.

4. A probe back box, characterized in that: The probe back box is applied to the smoke probe as described in any one of claims 1 to 3.

5. A ship, characterized in that: The ship is provided with a smoke detector as described in any one of claims 1 to 3.

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