Marine deck fire sprinkler

Abstract

The utility model relates to ship fire fighting equipment technical field, concretely relates to a marine lifting deck fire -fighting nozzle, including base and telescopic cylinder, base is equipped with the accommodation hole, telescopic cylinder is limitedly installed in the accommodation hole and slides, the upper end of telescopic cylinder is sealed and is arranged, the lower end of telescopic cylinder is towards the water inlet end of accommodation hole, and the lateral wall of telescopic cylinder is opened and has the water jet opening, in the accommodation hole, under the condition of storage, the telescopic cylinder is kept in the accommodation hole by the spring in the base, under the condition of water jet, external water source overcomes the spring force and pushes the telescopic cylinder and slides, and the water jet opening removes to the outside of accommodation hole. The fire -fighting nozzle is especially suitable for the ship without stable power supply or the high corrosive marine environment. Effectively change the mode of traditional motor drive lifting and reduce the security risk. Simple design does not need external force intervention, and works by water pressure. Remove the nozzle design, change into the water jet opening of the side wall hole of telescopic cylinder, simplify the design structure, reduce the nozzle blockage risk, and reduce the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of marine fire-fighting equipment technology, specifically to a marine lift-type deck fire sprinkler. Background Technology

[0002] Currently, to meet fire safety requirements, large buildings such as factories, commercial buildings, schools, and ships are generally equipped with automatic fire suppression systems, and sprinklers are an important part of these systems. For example, Chinese patent document CN210583440U discloses an automatic retractable sprinkler head, including a mounting plate, a transition joint, a mounting flange, a valve body, a positioning block, a fixing block, a movable block, and a movable shaft. One end of the valve body is connected to the transition joint, and the other end is connected to the mounting flange. The mounting flange is a flange-shaped sleeve including a flange flange and a sleeve. The sleeve has a central threaded hole, and the bottom end of the sleeve has an integrally formed horizontal annular flange that runs radially inward. The valve body is a cylinder with a stepped cylindrical hole running through the center along the axial direction, and external threads are provided at both ends of the outer wall. The lower end of the valve body is inserted into the central threaded hole of the sleeve and threaded internally, and the upper end of the valve body is inserted into the interface of the transition joint and threadedly connected to the transition joint. The central stepped hole in the valve body is divided into an upper piston chamber, a middle radially inward water storage chamber, and a lower radially outward pressure chamber. It has a large spray range, a large water volume, and a strong fire extinguishing ability. It automatically retracts and hides when the spraying stops.

[0003] While the above structure achieves automatic recycling and concealment when the spray stops, it is complex and has high manufacturing costs. Summary of the Invention

[0004] In view of the above-mentioned technical problems, the present invention provides a marine lifting deck fire sprinkler.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A marine lifting deck fire sprinkler is provided, including a base and a telescopic cylinder. The base is provided with a receiving hole, and the telescopic cylinder is slidably installed in the receiving hole with a limited stroke. The upper end of the telescopic cylinder is sealed, and the lower end of the telescopic cylinder faces the water inlet end of the receiving hole. A spray nozzle is provided through the side wall of the telescopic cylinder.

[0007] In its retracted state, the telescopic cylinder is held within the receiving hole by a spring inside the base.

[0008] When spraying water, the external water source overcomes the spring force and pushes the telescopic cylinder to slide, moving the water nozzle outside the receiving hole.

[0009] Specifically, the water nozzles are elongated holes arranged around the circumference of the telescopic cylinder; and / or: the number of water nozzles is multiple.

[0010] Specifically, a first sealing ring is provided at the lower end of the telescopic cylinder, and a second sealing ring is provided at the upper end of the telescopic cylinder; in the retracted state, there is a gap between the first sealing ring and the inner wall of the receiving hole, while the second sealing ring and the inner wall of the receiving hole are tightly sealed against each other; in the water spraying state, the first sealing ring is tightly sealed against the inner wall of the receiving hole, and the second sealing ring follows the telescopic cylinder out of the receiving hole.

[0011] Specifically, the top of the telescopic cylinder is fixed with a protective plate, and the top of the base is provided with a clearance groove. In the retracted state, the protective plate is embedded in the clearance groove, and the top surface of the protective plate is flush with the top surface of the base.

[0012] Specifically, the upper end of the receiving hole is provided with an annular limiting protrusion, the top surface of the limiting protrusion serves as the clearance groove, one end of the spring abuts against the bottom surface of the limiting protrusion, and the other end of the spring abuts against the telescopic cylinder; in the retracted state, the second sealing ring abuts against the limiting protrusion.

[0013] Specifically, a guide protrusion is provided on the lower circumference of the telescopic cylinder. The guide protrusion fits snugly against the side wall of the receiving hole. A positioning plane is provided between the guide protrusion and the receiving hole to limit each other in the circumferential direction.

[0014] Specifically, the base has a mounting flange at the top, and the mounting flange has mounting holes.

[0015] Specifically, the base includes an upper body and a lower body that are threaded together, and a third sealing ring is provided at the connection point.

[0016] Specifically, the lower body is equipped with a filter screen and a retaining spring, with the filter screen being fixed in place by the retaining spring.

[0017] Specifically, both the base and the telescopic cylinder are hollow cylindrical metal structures.

[0018] The beneficial effects of this utility model are:

[0019] This invention relates to a marine lifting deck fire sprinkler. When a fire occurs, the system supplies water to the inlet of the base. The water flows into the telescopic cylinder, and the water pressure causes the cylinder to rise while simultaneously spraying water from the nozzle in a predetermined direction to form a water curtain for fire extinguishing. This fire sprinkler is particularly suitable for ships without a stable power supply or in highly corrosive marine environments. It effectively changes the traditional motor-driven lifting method, reducing safety hazards.

[0020] This technology differs from traditional lifting nozzles, as it can complete the lifting action solely based on the water pressure in its own pipeline.

[0021] This design effectively solves the drawbacks of traditional nozzles, resulting in the following improvements:

[0022] 1) Purely mechanical structure, simple design, no external force interference required, works by water pressure.

[0023] 2) Waterproof and dustproof design to prevent lifting failure due to impurities during operation.

[0024] 3) The nozzle design was removed and replaced with a water spray nozzle with an opening in the side wall of the telescopic cylinder, which simplifies the design structure, reduces the risk of nozzle clogging, and lowers maintenance costs. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of a marine lift-type deck fire sprinkler in one of the embodiments.

[0027] Figure 2 This is an exploded view of a marine lift-type deck fire sprinkler in one of the embodiments.

[0028] Figure 3 This is a plan sectional view of a marine lift-type deck fire sprinkler in one of the embodiments.

[0029] Figure 4 This is a perspective sectional view of a marine lift-type deck fire sprinkler in the embodiment.

[0030] Figure 5 This is a schematic diagram of the telescopic cylinder of a marine lifting deck fire sprinkler in one of the embodiments.

[0031] Figure 6 This is a schematic diagram of a marine lift-type deck fire sprinkler in the water spraying state, as shown in the embodiment.

[0032] Figure label:

[0033] Base 1, receiving hole 11, clearance groove 12, limiting protrusion 13, mounting flange 14, mounting hole 15, upper body 16, lower body 17;

[0034] 2. Telescopic cylinder; 21. Spray nozzle; 22. Guide protrusion; 23. Positioning plane;

[0035] First sealing ring 3, second sealing ring 4, third sealing ring 5;

[0036] 6. Spring; 7. Protective plate; 8. Filter screen; 9. Snap ring. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] This embodiment provides a marine lift-type deck fire sprinkler, such as... Figures 1 to 6 As shown, the device includes a base 1 and a telescopic cylinder 2. Both the base 1 and the telescopic cylinder 2 are hollow cylindrical metal structures. The base 1 has a through-hole 11. The telescopic cylinder 2 is slidably installed in the through-hole 11 with a limited stroke. The upper end of the telescopic cylinder 2 is sealed, and the lower end of the telescopic cylinder 2 faces the water inlet end of the through-hole 11. Multiple water nozzles 21 are through-holes on the upper sidewall of the telescopic cylinder 2. The water nozzles 21 are elongated holes arranged around the circumference of the telescopic cylinder 2. The water nozzles 21 are staggered vertically, and the arrangement can be designed differently according to different locations. During operation, it can continuously spray water to form a water curtain, protecting surfaces threatened by fire and creating fireproof barriers. Different spray angles, such as 90 degrees, 180 degrees, and 360 degrees, can be selected depending on the installation location.

[0039] refer to Figure 3 and Figure 4 As shown, in the retracted state, the telescopic cylinder 2 is held within the receiving hole 11 by the spring 6 inside the base 1. (Reference) Figure 6 As shown, in the water spraying state, the external water source overcomes the force of the spring 6 and pushes the telescopic cylinder 2 to slide, and the water spray nozzle 21 moves to the outside of the receiving hole 11.

[0040] In this embodiment, a first sealing ring 3 is provided at the lower end of the telescopic cylinder 2, and a second sealing ring 4 is provided at the upper end of the telescopic cylinder 2. In the retracted state, a gap is left between the first sealing ring 3 and the inner wall of the receiving hole 11, allowing a small amount of liquid between the outer wall of the telescopic cylinder 2 and the inner wall of the receiving hole 11 to drain, preventing water pressure from affecting the displacement of the telescopic cylinder 2. In the retracted state, the second sealing ring 4 is tightly sealed against the inner wall of the receiving hole 11, providing good waterproofing and dustproofing. In the water spraying state, the first sealing ring 3 is tightly sealed against the inner wall of the receiving hole 11, and the second sealing ring 4 disengages from the receiving hole 11 along with the telescopic cylinder 2.

[0041] Specifically, the top of the telescopic cylinder 2 is fixed with a protective plate 7 by screws, and the top of the base 1 is provided with a relief groove 12. In the stored state, the protective plate 7 is embedded in the relief groove 12, and the top surface of the protective plate 7 is flush with the top surface of the base 1.

[0042] Specifically, the upper end of the receiving hole 11 is provided with an annular limiting protrusion 13. The top surface of the limiting protrusion 13 serves as the relief groove 12. One end of the spring 6 abuts against the bottom surface of the limiting protrusion 13, and the other end of the spring 6 abuts against the telescopic cylinder 2 to position the telescopic cylinder 2 downwards. It can be seen that in the retracted state, the second sealing ring 4 abuts against the limiting protrusion 13.

[0043] Specifically, a guide protrusion 22 is provided on the lower circumference of the telescopic cylinder 2. The guide protrusion 22 is fitted with the side wall of the receiving hole 11 with a gap. A positioning plane 23 is provided between the guide protrusion 22 and the receiving hole 11 to limit each other in the circumferential direction, that is, they cannot rotate relative to each other, but they can be displaced relative to each other in the axial direction.

[0044] Specifically, the base 1 has a mounting flange 14 on its top, and the mounting flange 14 has mounting holes 15, which facilitates fixing the entire nozzle to the deck in use with bolts.

[0045] Specifically, the base 1 includes an upper body 16 and a lower body 17 that are threaded together, and a third sealing ring 5 is provided at the connection point. The assembled structure is easier to manufacture.

[0046] Specifically, the lower body 17 is equipped with a filter screen 8 and a retaining spring 9, with the filter screen 8 being fixedly installed via the retaining spring 9.

[0047] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0048] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0049] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A marine lift-type deck fire sprinkler, characterized in that: Includes a base (1) and a telescopic cylinder (2). The base (1) has a through-hole (11). The telescopic cylinder (2) is slidably installed in the through-hole (11) with a limited stroke. The upper end of the telescopic cylinder (2) is sealed. The lower end of the telescopic cylinder (2) faces the water inlet end of the through-hole (11). The side wall of the telescopic cylinder (2) has a through-hole (21). In the retracted state, the telescopic cylinder (2) is kept in the receiving hole (11) by the spring (6) inside the base (1); In the water spraying state, the external water source overcomes the force of the spring (6) and pushes the telescopic cylinder (2) to slide, and the water spray nozzle (21) moves to the outside of the receiving hole (11).

2. The marine lift-type deck fire sprinkler head according to claim 1, characterized in that: The nozzle (21) is an elongated hole arranged around the telescopic cylinder (2); and / or: the number of nozzles (21) is multiple.

3. A marine lift-type deck fire sprinkler according to claim 1, characterized in that: The lower end of the telescopic cylinder (2) is provided with a first sealing ring (3), and the upper end of the telescopic cylinder (2) is provided with a second sealing ring (4). In the retracted state, there is a gap between the first sealing ring (3) and the inner wall of the receiving hole (11), while the second sealing ring (4) and the inner wall of the receiving hole (11) are tightly sealed against each other. In the water spraying state, the first sealing ring (3) is tightly sealed against the inner wall of the receiving hole (11), and the second sealing ring (4) follows the telescopic cylinder (2) out of the receiving hole (11).

4. A marine lift-type deck fire sprinkler according to claim 3, characterized in that: The top of the telescopic cylinder (2) is fixed with a protective plate (7), and the top of the base (1) is provided with a relief groove (12). In the stored state, the protective plate (7) is embedded in the relief groove (12), and the top surface of the protective plate (7) is flush with the top surface of the base (1).

5. A marine lift-type deck fire sprinkler head according to claim 4, characterized in that: The upper end of the receiving hole (11) is provided with an annular limiting protrusion (13), the top surface of the limiting protrusion (13) serves as the relief groove (12), one end of the spring (6) abuts against the bottom surface of the limiting protrusion (13), and the other end of the spring (6) abuts against the telescopic cylinder (2); in the retracted state, the second sealing ring (4) abuts against the limiting protrusion (13).

6. A marine lift-type deck fire sprinkler according to claim 1, characterized in that: A guide protrusion (22) is provided on the lower circumference of the telescopic cylinder (2). The guide protrusion (22) and the side wall of the receiving hole (11) are fitted together with a gap. A positioning plane (23) is provided between the guide protrusion (22) and the receiving hole (11) to limit each other in the circumferential direction.

7. A marine lift-type deck fire sprinkler according to claim 1, characterized in that: The base (1) has a mounting flange (14) on its top, and the mounting flange (14) has a mounting hole (15).

8. A marine lift-type deck fire sprinkler according to claim 1, characterized in that: The base (1) includes an upper body (16) and a lower body (17) that are threaded together, and a third sealing ring (5) is provided at the connection.

9. A marine lift-type deck fire sprinkler according to claim 8, characterized in that: The lower body (17) is provided with a filter screen (8) and a retaining ring (9), and the filter screen (8) is fixedly installed via the retaining ring (9).

10. A marine lift-type deck fire sprinkler according to claim 1, characterized in that: Both the base (1) and the telescopic cylinder (2) are hollow cylindrical metal structures.

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