FFU ceiling dry fire-fighting spray branch pipe and aluminum alloy keel connecting piece

Abstract

The utility model relates to a kind of FFU ceiling dry type fire-fighting spray branch pipe and aluminium alloy keel connecting piece, its structure includes reducing joint and keel connecting part, reducing joint includes round steel pipe part and conversion joint mutually welded, keel connecting part is flat structure, keel connecting part center sleeve is connected in the recess outside round steel pipe part, recess height is greater than the thickness of keel connecting part, the outer end portion of round steel pipe part away from conversion joint is connected shower head, the outer end portion of conversion joint away from round steel pipe part is connected fire-fighting branch pipe, and keel connecting part both ends are fixed on aluminium alloy keel.The utility model has the advantages that: structure design is reasonable, can be adjusted according to the deformation of FFU equipment layer keel and spray connection, with certain free adjustment space.At the same time, connecting piece and fire-fighting branch pipe and shower head are connected by screw thread, which can make construction more convenient, effectively improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to a connector for connecting a dry fire sprinkler branch pipe to an aluminum alloy keel, specifically a connector for connecting a dry fire sprinkler branch pipe to an aluminum alloy keel on a cleanroom FFU ceiling, belonging to the field of building tool technology. Background Technology

[0002] In construction settings such as semiconductor cleanroom industrial plants, dry sprinkler systems are a common type of fire suppression system. However, connecting the branch pipes of the sprinkler system to the cleanroom FFU (Fan Filter Unit) ceiling has always been a challenge during cleanroom construction. Fire safety regulations explicitly prohibit the use of flexible hoses for dry sprinkler systems. If rigid pipes are used, the branch pipes cannot adapt to the slight deformation of the ceiling, easily leading to sprinkler head deformation and damage during use, causing malfunctions and significant losses to the semiconductor manufacturing workshop. Utility Model Content

[0003] This utility model proposes a connector for an FFU ceiling-mounted dry fire sprinkler branch pipe and an aluminum alloy keel. Its purpose is to overcome the above-mentioned shortcomings of the existing technology and realize that the connector can adapt to the deformation of the keel when fixed, so as to avoid damage to the sprinkler pipe.

[0004] The technical solution of this utility model is a connector for an FFU (Fan Utility Unit) ceiling-mounted dry fire sprinkler branch pipe and an aluminum alloy keel. Its structure includes a reducing joint and a keel connection part. The reducing joint includes a round steel pipe section welded together and a conversion joint. The keel connection part is a flat plate structure, with its center fitted into a groove on the outside of the round steel pipe section. The groove height is greater than the thickness of the keel connection part. The outer end of the round steel pipe section, away from the conversion joint, connects to a sprinkler head. The outer end of the conversion joint, away from the round steel pipe section, connects to a fire branch pipe. Both ends of the keel connection part are fixed to the aluminum alloy keel. Because the groove height is greater than the keel connection part thickness, the sprinkler connection can be adjusted according to the deformation of the FUU equipment layer keel, providing free adjustment space. This solves the problem that when the connector is fixed, it cannot adapt to keel deformation, which may lead to sprinkler pipe breakage.

[0005] Preferably, the reducing joint includes a round steel pipe section and a conversion joint welded together. The inner side of the outer end of the round steel pipe section away from the conversion joint has an A-type internal thread, and the outer end of the conversion joint away from the round steel pipe section has an external hexagonal internal round pipe. The inner side of the external hexagonal internal round pipe end has a B-type internal thread. The end of the round steel pipe section is connected to the sprinkler head through the A-type internal thread, and the end of the conversion joint is connected to the fire branch pipe through the B-type internal thread. The threaded connection of the connectors makes construction more convenient and effectively improves construction efficiency.

[0006] Preferably, the center of the keel connecting part is a circular ring, which is fitted into the groove on the outside of the circular steel pipe. The two ends of the keel connecting part are provided with connecting holes, and the keel connecting part is fixed to the aluminum alloy keel by bolts passing through the connecting holes.

[0007] The advantages of this utility model are: Its reasonable structural design allows for adjustment of the sprinkler connection based on the deformation of the FFU (Fan Filter Unit) equipment layer keel, providing a certain degree of free adjustment space. Specifically, it utilizes the free movement space between rigid connectors and conversion connectors, solving the displacement and deformation problem caused by vibration within a limited space. The free movement of the connectors in the vertical and horizontal dimensions solves the problem of sprinkler pipe breakage that could occur if the connectors were fixed and could not adapt to keel deformation. Furthermore, the connectors are threaded to the fire branch pipes and sprinkler heads, making construction more convenient and effectively improving construction efficiency. Attached Figure Description

[0008] Figure 1 This is a structural schematic diagram of the FFU ceiling dry fire sprinkler branch pipe and aluminum alloy keel connector of this utility model.

[0009] Figure 2 This is a perspective structural diagram of the connection between the FFU ceiling-mounted dry fire sprinkler branch pipe and the aluminum alloy keel of this utility model.

[0010] Figure 3 yes Figure 1 A top view of the connection section of the middle keel.

[0011] Figure 4 yes Figure 1 A bottom view.

[0012] Figure 5 This is a schematic diagram showing the usage status of the FFU ceiling dry fire sprinkler branch pipe and the aluminum alloy keel connector of this utility model.

[0013] In the diagram, 1 is the reducing joint, 11 is the round steel pipe section, 111 is the A internal thread, 112 is the groove, 12 is the conversion joint, 121 is the argon arc welding section, 122 is the external hexagonal internal round pipe, 123 is the B internal thread, 2 is the keel connection section, 21 is the ring section, 22 is the connecting hole, 3 is the aluminum alloy keel (FFU keel), 31 is the connecting bolt, 4 is the fire branch pipe (dry fire sprinkler branch pipe), and 5 is the sprinkler head. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0015] like Figure 1-5As shown, an FFU ceiling-mounted dry fire sprinkler branch pipe and aluminum alloy keel connector is provided. The structure includes a reducing joint 1 and a keel connection part 2. The reducing joint 1 includes a round steel pipe part 11 and a conversion joint 12 welded together. The keel connection part 2 is a flat plate structure. The center of the keel connection part 2 is fitted into a groove 112 on the outside of the round steel pipe part 11. The height of the groove 112 is greater than the thickness of the keel connection part 2. The outer end of the round steel pipe part 11 away from the conversion joint 12 is connected to a sprinkler head 5. The outer end of the conversion joint 12 away from the round steel pipe part 11 is connected to a fire branch pipe 4. Both ends of the keel connection part 2 are fixed to the aluminum alloy keel 3.

[0016] The reducing joint 1 and the keel connection part 2 can be made of stainless steel or galvanized carbon steel.

[0017] Based on the above structure, since the height of the groove 112 is greater than the thickness of the keel connection part 2, the spray connection can be adjusted according to the deformation of the FUU equipment layer keel, and there is room for free adjustment. This solves the problem that when the connector is fixed, it cannot adapt to the deformation of the keel, which may lead to the cracking of the spray pipe.

[0018] Specifically, the reducing joint 1 includes a round steel pipe section 11 welded together and a conversion joint 12. The inner side of the outer end of the round steel pipe section 11 away from the conversion joint 12 has an A internal thread 111. The outer end of the conversion joint 12 away from the round steel pipe section 11 has an external hexagonal internal round pipe 122. The inner side of the end of the external hexagonal internal round pipe 122 has a B internal thread 123. The end of the round steel pipe section 11 is connected to the sprinkler head 5 through the A internal thread 111, and the end of the conversion joint 12 is connected to the fire branch pipe 4 through the B internal thread 123. The threaded connection of the connectors makes construction more convenient and effectively improves construction efficiency.

[0019] The center of the keel connecting part 2 is a circular ring part 21, which is fitted into the groove 112 on the outside of the circular steel pipe part 11. The two ends of the keel connecting part 2 are provided with connecting holes 22. The keel connecting part 2 is fixed to the aluminum alloy keel 3 by bolts passing through the connecting holes 22.

[0020] In one embodiment, the reducer 1 has a height of 129mm, the round steel pipe part 11 is a DN25 round steel pipe with a height of 93mm, the A internal thread 111 is a ½″ internal thread with a length of not less than 20mm, the groove 112 is located 70mm away from the outer end of the reducer 12, the groove 112 has a height of 7mm and a depth of 1mm, the reducer 12 has a height of 36mm, the argon arc weld part 121 at the weld with the reducer 1 has a weld leg height of not less than 3mm, the external hexagonal internal round pipe 122 has a height of 21mm, and the B internal thread 123 is a 1″ internal thread with a length of not less than 20mm. The keel connection part 2 is approximately 150mm long and 4mm thick. The 4mm thick keel connection part 2, within the 7mm high groove 112, provides a 3-4mm free adjustment space, allowing for adjustment of the spray connection according to the deformation of the FUU equipment layer keel.

[0021] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A FFU ceiling dry fire protection sprinkler branch pipe and aluminum alloy furring channel connecting piece, characterized in that, It includes a reducing joint (1) and a keel connection part (2). The reducing joint (1) includes a round steel pipe part (11) and a conversion joint (12) welded together. The keel connection part (2) is a flat plate structure. The center of the keel connection part (2) is fitted into the groove (112) on the outside of the round steel pipe part (11). The height of the groove (112) is greater than the thickness of the keel connection part (2). The outer end of the round steel pipe part (11) away from the conversion joint (12) is connected to the sprinkler head (5). The outer end of the conversion joint (12) away from the round steel pipe part (11) is connected to the fire branch pipe (4). Both ends of the keel connection part (2) are fixed on the aluminum alloy keel (3).

2. A FFU ceiling dry fire protection sprinkler branch pipe and aluminum alloy furring channel connection piece according to claim 1, characterized in that, The reducing joint (1) includes a round steel pipe section (11) and a conversion joint (12) welded together. The inner side of the outer end of the round steel pipe section (11) away from the conversion joint (12) is an A internal thread (111). The outer end of the conversion joint (12) away from the round steel pipe section (11) is an external hexagonal internal round pipe (122). The inner side of the end of the external hexagonal internal round pipe (122) is a B internal thread (123). The end of the round steel pipe section (11) is connected to the sprinkler head (5) through the A internal thread (111). The end of the conversion joint (12) is connected to the fire branch pipe (4) through the B internal thread (123).

3. A FFU ceiling dry fire protection sprinkler branch connection for aluminum framing members as defined in claim 1, wherein, The center of the keel connecting part (2) is a circular ring (21), which is fitted into the groove (112) on the outside of the circular steel pipe part (11). The two ends of the keel connecting part (2) are provided with connecting holes (22). The keel connecting part (2) is fixed to the aluminum alloy keel (3) by bolts passing through the connecting holes (22).

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