Ring joint double seal type fire fighting spray water distributor

Abstract

The utility model relates to the technical field of pipe fitting, especially to a ring clamp double-sealing type fire-fighting spray water distributor, which comprises a main pipe, a plurality of connecting heads are communicated on the main pipe, a ring clamp joint is fixed on the connecting head, the ring clamp joint comprises a first annular part fixed with the connecting head, the first annular part is connected with a second annular part, the second annular part is connected with a first arc convex part, a high-temperature-resistant sealing structure is arranged in the first arc convex part, the first arc convex part is connected with a third annular part, the third annular part is connected with a fourth annular part, the utility model is provided with the ring clamp joint and the high-temperature-resistant sealing structure, which not only greatly facilitates installation and improves installation efficiency, but also improves the sealing performance of the connecting part, and the high-temperature-resistant sealing structure can well adapt to a high-temperature environment and improve the service life.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings, and in particular to a ring-clamp double-seal fire sprinkler distributor. Background Technology

[0002] Fire sprinkler systems are a widely used and important type of fixed fire protection facility in fire protection systems. For example, fire sprinkler systems are often installed on the rooftops of public places such as hospitals and shopping malls to protect the building's safety. Patent application number CN202220989550.0 discloses a connector for a fire sprinkler pipe. This connector has the following drawbacks in use: 1) The connector involves many parts, requiring significant manpower for installation and resulting in low installation efficiency; 2) The connection between components is mainly a threaded connection, which suffers from poor sealing and easy leakage; 3) Fire sprinkler pipes often need to withstand high-temperature environments during use, where the sealing ring is easily damaged, thus damaging the entire fire sprinkler pipe and affecting its service life. Therefore, there is an urgent need for a pipe connector with high installation efficiency, good sealing performance, and the ability to protect the internal sealing ring under high-temperature environments. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, the present invention aims to provide a ring-clamp double-seal fire sprinkler distributor, which solves the problems existing in the prior art. Through the setting of the ring-clamp joint and the high-temperature resistant sealing structure, installation is not only greatly facilitated and installation efficiency is improved, but the sealing performance of the connection is also improved. At the same time, the high-temperature resistant sealing structure can adapt well to high-temperature environments and extend service life.

[0004] (II) Technical Solution

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ring-clamp double-sealed fire sprinkler distributor, including a main pipe, a plurality of connectors connected to the main pipe, a ring-clamp joint fixed on the connector, the ring-clamp joint including a first annular portion fixed to the connector, a second annular portion connected to the first annular portion, a first arc-shaped protrusion connected to the second annular portion, a high-temperature resistant sealing structure provided in the first arc-shaped protrusion, a third annular portion connected to the first arc-shaped protrusion, and a fourth annular portion connected to the third annular portion.

[0006] Preferably, the high-temperature resistant sealing structure includes a tungsten sheet layer fixed to the inner wall surface of the first arc-shaped protrusion, and a sealing ring fixed to the inner wall surface of the tungsten sheet layer.

[0007] Preferably, an arc-shaped cavity is provided on the side of the tungsten sheet layer that contacts the first arc-shaped protrusion, and the arc-shaped cavity is filled with graphite soft felt.

[0008] Preferably, the first annular portion and the second annular portion are connected and fixed together by a first connecting portion, and the third annular portion and the fourth annular portion are connected and fixed together by a second connecting portion.

[0009] Preferably, the lower outer wall diameter of the first connecting part is smaller than its upper outer wall diameter, and the lower outer wall diameter of the second connecting part is smaller than its upper outer wall diameter.

[0010] Preferably, the first annular portion is provided with a second arc-shaped protrusion, and the second arc-shaped protrusion is provided with a high-temperature resistant sealing structure.

[0011] Preferably, the inner wall surface of the sealing ring extends beyond the inner wall surface of the second annular portion.

[0012] Preferably, the sealing ring has two annular cavities, the center of which is located on the transverse centerline of the sealing ring.

[0013] Preferably, a number of wavy sealing parts are fixed on the inner wall surface of the sealing ring corresponding to the annular cavity.

[0014] (III) Beneficial Effects

[0015] 1. This utility model, through the design of the ring clamp joint and the high-temperature resistant sealing structure, not only greatly facilitates installation and improves installation efficiency, but also enhances the sealing performance of the connection. At the same time, the high-temperature resistant sealing structure can adapt well to high-temperature environments and extend service life.

[0016] 2. This utility model, through the setting of the tungsten sheet layer, has a good heat insulation effect. In the event of a fire or other high-temperature environment, it can effectively protect the inner sealing ring and prevent the sealing ring from melting or burning due to the high temperature environment. On the other hand, the tungsten sheet layer is made of metal, which facilitates the fixing of the sealing ring. Through the setting of the arc-shaped cavity and the graphite soft felt, an additional heat insulation barrier is added between the first arc-shaped protrusion and the tungsten sheet layer, further blocking heat transfer in high-temperature environments and enhancing the protection of the sealing ring.

[0017] 3. This utility model is provided with a first annular portion, a first connecting portion, a second annular portion, a third annular portion, a second connecting portion, and a fourth annular portion. The lower outer wall diameter of the first connecting portion is set to be smaller than the upper outer wall diameter, and the lower outer wall diameter of the second connecting portion is set to be smaller than the upper outer wall diameter. This makes the first annular portion, the second annular portion, the third annular portion, and the fourth annular portion present a certain layer, rather than a single straight cylinder, which is beneficial to improving the firmness and sealing of the connection.

[0018] 4. This utility model improves sealing performance and pressure resistance by setting a second arc-shaped protrusion and setting a high-temperature resistant sealing structure therein.

[0019] 5. The annular cavity of this invention allows for easy deformation of the sealing ring when it is compressed, and also enables timely air pressure compensation when negative pressure is generated in the fire-fighting pipeline, thus providing excellent anti-negative pressure protection. The wavy sealing part provides some compensation for the sealing of this part, and also increases the friction with the outer wall of the fire-fighting branch pipe, while also acting like a suction cup, thereby enhancing the fixing and sealing effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0021] Figure 2 This is a schematic diagram of the ring clamp connector of this utility model.

[0022] Figure 3 This utility model Figure 2 A longitudinal section diagram.

[0023] Figure 4 This is a schematic diagram of the first arc-shaped protrusion and the high-temperature resistant sealing structure of this utility model.

[0024] Figure 5 This utility model Figure 3 A schematic diagram showing the addition of the second arc-shaped protrusion and the high-temperature resistant sealing structure within the second arc-shaped protrusion.

[0025] Figure 6 A schematic diagram showing the sealing ring of this utility model with the addition of an annular cavity and a corrugated sealing part. In the diagram: 1-Main pipe, 2-Connector, 3-Ring connector, 4-First annular part, 5-Second annular part, 6-First arc-shaped protrusion, 7-High temperature resistant sealing structure, 8-Third annular part, 9-Fourth annular part, 10-Tungsten sheet layer, 11-Sealing ring, 12-Arch-shaped cavity, 13-Graphite soft felt, 14-First connecting part, 15-Second connecting part, 16-Second arc-shaped protrusion, 17-Annular cavity, 18-Wave-shaped sealing part. Detailed Implementation

[0026] The following will refer to the appendix in the embodiments of this utility model. Figures 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0027] This utility model provides a technical solution: a ring-clamp double-sealed fire sprinkler distributor, including a main pipe 1, with several connectors 2 connected to the main pipe 1. A ring-clamp connector 3 is fixed to each connector 2. The ring-clamp connector 3 includes a first annular portion 4 fixed to the connector 2, a second annular portion 5 connected to the first annular portion 4, a first arc-shaped protrusion 6 connected to the second annular portion 5, a high-temperature resistant sealing structure 7 within the first arc-shaped protrusion 6, a third annular portion 8 connected to the first arc-shaped protrusion 6, and a fourth annular portion 9 connected to the third annular portion 8. During installation, simply insert the sprinkler branch pipe matching the ring-clamp connector 3 into the ring-clamp connector 3. In larger locations where fire sprinkler systems are installed, multiple sets of the above-mentioned ring-clamp double-sealed fire sprinkler distributors and sprinkler branch pipes need to be installed in an array. This installation method is very convenient, greatly improving installation efficiency and sealing performance. The high-temperature resistant sealing structure 7 within the first arc-shaped protrusion 6 allows the high-temperature resistant sealing structure 7 to adapt well to high-temperature environments, extending its service life.

[0028] The high-temperature resistant sealing structure 7 includes a tungsten sheet layer 10 fixed to the inner wall of the first arc-shaped protrusion 8, and a sealing ring 11 fixed to the inner wall of the tungsten sheet layer 10. The tungsten sheet layer 10 provides excellent heat insulation, protecting the sealing ring 11 from melting or burning in high-temperature environments such as fires. Furthermore, the metallic material of the tungsten sheet layer 10 facilitates the fixing of the sealing ring 11. The inner wall of the sealing ring 11 extends beyond the inner wall of the second annular portion 5, allowing for compression during the insertion of the fire-fighting branch pipe, thus achieving a sealing effect.

[0029] An arc-shaped cavity 12 is formed on the side of the tungsten sheet layer 10 that contacts the first arc-shaped protrusion 8, and the arc-shaped cavity 12 is filled with graphite soft felt 13. By setting the arc-shaped cavity 12 and the graphite soft felt 13, an additional heat insulation barrier is added between the first arc-shaped protrusion 8 and the tungsten sheet layer 10, further blocking heat transfer under high temperature environment and improving the protection of the sealing ring 11.

[0030] The first annular portion 4 and the second annular portion 5 are connected and fixed together by a first connecting portion 14, and the third annular portion 8 and the fourth annular portion 9 are connected and fixed together by a second connecting portion 15. The lower outer wall diameter of the first connecting portion 14 is smaller than its upper outer wall diameter, and the lower outer wall diameter of the second connecting portion 15 is smaller than its upper outer wall diameter. This arrangement creates a layered structure between the first annular portion 4, the second annular portion 5, the third annular portion 8, and the fourth annular portion 9, rather than a single straight cylinder, which helps to improve the strength and sealing of the connection.

[0031] The first annular portion 4 is provided with a second arc-shaped protrusion 16, and a high-temperature resistant sealing structure 7 is provided inside the second arc-shaped protrusion 6. Since the fire sprinkler pipe needs to withstand high water pressure during use, its sealing requirements are higher. Therefore, the sealing and pressure resistance are improved by setting the second arc-shaped protrusion 16 and setting the high-temperature resistant sealing structure 7 inside it.

[0032] Two annular cavities 17 are formed inside the sealing ring 11, with the center of each annular cavity 17 located on the transverse centerline of the sealing ring 11. The annular cavities 17 facilitate deformation of the sealing ring 11 under pressure and provide timely pressure compensation in the event of negative pressure within the fire-fighting pipeline, thus effectively resisting negative pressure.

[0033] Several corrugated sealing portions 18 are fixed on the inner wall surface of the sealing ring 11 corresponding to the annular cavity 17. Since the sealing ring 11 part where the annular cavity 17 is located is relatively easier to be squeezed, the corrugated sealing portions 18 are provided to compensate for the sealing of this part. On the other hand, the corrugated sealing portions 18 can increase the friction with the outer wall surface of the fire branch pipe, and can also act like a suction cup, thereby enhancing the fixing and sealing effect.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ring-clamp double-seal fire sprinkler distributor, characterized in that, Includes a main pipe (1), on which several connectors (2) are connected, and a ring clamp (3) is fixed on the connector (2). The ring clamp (3) includes a first annular part (4) fixed to the connector (2), the first annular part (4) is connected to a second annular part (5), the second annular part (5) is connected to a first arc-shaped protrusion (6), the first arc-shaped protrusion (6) is provided with a high-temperature resistant sealing structure (7), the first arc-shaped protrusion (6) is connected to a third annular part (8), and the third annular part (8) is connected to a fourth annular part (9).

2. The ring-clamp double-seal fire sprinkler distributor according to claim 1, characterized in that, The high-temperature resistant sealing structure (7) includes a tungsten sheet layer (10) fixed on the inner wall surface of the first arc-shaped protrusion (6), and a sealing ring (11) fixed on the inner wall surface of the tungsten sheet layer (10).

3. The ring-clamp double-seal fire sprinkler distributor according to claim 2, characterized in that, An arc-shaped cavity (12) is provided on the side of the tungsten sheet layer (10) that is in contact with the first arc-shaped protrusion (6), and the arc-shaped cavity (12) is filled with graphite soft felt (13).

4. A ring-clamp double-seal fire sprinkler distributor according to claim 3, characterized in that, The first annular portion (4) and the second annular portion (5) are connected and fixed together by a first connecting portion (14), and the third annular portion (8) and the fourth annular portion (9) are connected and fixed together by a second connecting portion (15).

5. A ring-clamp double-seal fire sprinkler distributor according to claim 4, characterized in that, The lower outer wall diameter of the first connecting part (14) is smaller than the upper outer wall diameter, and the lower outer wall diameter of the second connecting part (15) is smaller than the upper outer wall diameter.

6. A ring-clamp double-seal fire sprinkler distributor according to claim 2, characterized in that, The first annular portion (4) is provided with a second arc-shaped protrusion (16), and the high-temperature resistant sealing structure (7) is provided inside the second arc-shaped protrusion (16).

7. A ring-clamp double-sealed fire sprinkler distributor according to claim 2, characterized in that, The inner wall surface of the sealing ring (11) extends beyond the inner wall surface of the second annular portion (5).

8. A ring-clamp double-sealed fire sprinkler distributor according to claim 2, characterized in that, The sealing ring (11) has two annular cavities (17) inside, and the center of the annular cavity (17) is located on the transverse centerline of the sealing ring (11).

9. A ring-clamp double-seal fire sprinkler distributor according to claim 8, characterized in that, A number of wavy sealing parts (18) are fixed on the inner wall surface of the sealing ring (11) corresponding to the annular cavity (17).

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