Mounting structure of fire-fighting spray header on ceiling

By designing retaining rings and threaded connections on the ceiling, as well as a removable protective cover, the problems of complex and dirty installation of existing ceiling fire sprinkler heads are solved, achieving simplified installation and enhanced protection.

CN224056536UActive Publication Date: 2026-03-31HANGZHOU HONGXIN SAFETY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing installation structure of fire sprinkler heads on the ceiling is complicated. The joints are easy to retract into the pre-fabricated holes and are difficult to remove. In addition, the lack of protective covers makes them easy to get dirty during decoration and affect their use.

Method used

An installation structure including a connector, ceiling, outer cover and fire sprinkler head is designed. The connector is equipped with a retaining ring and threaded hole, and the outer cover is equipped with a protective cover with a slot and buckle. It is fixed to the ceiling by the retaining ring and threaded connection, and the protective cover can be detached by the buckle and bayonet to prevent dirt.

Benefits of technology

The installation process is simplified, preventing dirt and grime from affecting the fire sprinkler heads and ensuring their proper functioning.

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Abstract

The utility model discloses a mounting structure of a fire sprinkler head on a ceiling, which comprises a joint, the ceiling, an outer cover and the fire sprinkler head, a prefabricated hole is arranged on the ceiling, a baffle ring is arranged on the joint, a threaded hole is arranged in a lower connecting end of the joint and used for connecting the fire sprinkler head, and an external thread is arranged on the outer side of the lower connecting end of the joint and used for connecting the fire sprinkler head. A connector is arranged at the top of the outer cover, an inner threaded hole is formed in the center of the connector and connected with an outer thread on the lower portion of the connector in a matched mode, the outer diameter of the connector is matched with the prefabricated hole, and a center hole is formed in the center of the bottom of the outer cover and used for penetrating through the connecting end of a fire sprinkler head. A protective cover is connected into the clamping groove in a clamped mode and covers the fire-fighting spraying head in a matched mode. According to the utility model, the detachably connected protective cover is arranged on the outer cover, so that protection can be carried out during decoration, the later use of the fire-fighting spray head cannot be influenced by dirt during decoration, and the fire-fighting spray head is convenient to install and few in working procedures when the fire-fighting spray head is installed.
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Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to an installation structure for a fire sprinkler head on a ceiling. Background Technology

[0002] With the acceleration of social development, the state has established strict fire protection standards for buildings, and industrial and civil buildings without adequate fire protection systems cannot be approved for use. According to the national "Code for Fire Protection Design of Buildings," both industrial and civil buildings are required to install a large number of fire sprinkler heads on the ceiling.

[0003] The existing installation structure of fire sprinkler heads on the ceiling, such as Figure 1 As shown, the structure includes a connector 1, a ceiling 2, an outer cover 3, and a fire sprinkler head 4. This structure requires pre-drilled holes 5 in the ceiling, through which the connector is inserted beforehand. During installation, the connector is pulled out, the outer cover is fitted, and then the fire sprinkler head is threaded onto it. Threaded holes are then drilled in the outer cover, and screws are used to secure the outer cover, fire sprinkler head, and connector together to the ceiling.

[0004] During installation, the joints are prone to shrinking into the pre-drilled holes, making them difficult to remove. This prevents the work from being completed in the early stages. The installation of fire sprinkler heads involves many complicated procedures. Furthermore, the existing structure does not have a protective cover for the fire sprinkler heads, which can easily cause dirt to accumulate on them during renovations, affecting their later use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model designs an installation structure for a fire sprinkler head on the ceiling.

[0006] The present invention adopts the following technical solution:

[0007] An installation structure for a fire sprinkler head on a ceiling includes a connector, a ceiling, an outer cover, and a fire sprinkler head. A pre-drilled hole is provided in the ceiling. The connector is equipped with a retaining ring. A threaded hole is provided in the lower connecting end of the connector for connecting the fire sprinkler head. An external thread is provided on the outer side of the lower connecting end of the connector. A connector head is provided on the top of the outer cover. An internal threaded hole is provided in the center of the connector head, which engages with the external thread at the bottom of the connector. The outer diameter of the connector head matches the pre-drilled hole. A central hole is provided at the bottom center of the outer cover for the connecting end of the fire sprinkler head to pass through. A groove is provided around the bottom outer edge of the outer cover, in which a protective cover engages and covers the fire sprinkler head.

[0008] The slot has two entry slots, and the protective cover connection has two protruding buckles. The buckles are inserted into the slots and rotated to lock in place and prevent detachment.

[0009] Preferably, the protective cover is a transparent plastic protective cover.

[0010] Preferably, the central hole of the outer cover matches the outer diameter of the connecting end of the fire sprinkler head.

[0011] Preferably, the slot has an L-shaped cross-section.

[0012] Preferably, the diameter of the retaining ring on the connector is larger than the inner diameter of the pre-drilled hole.

[0013] Preferably, the outer cover is integrally injection molded.

[0014] The beneficial effects of this utility model are as follows: This utility model designs an installation structure for a fire sprinkler head on the ceiling. This structure has a detachable protective cover installed on the outer casing. The protective cover, together with the cover, protects the fire sprinkler head during decoration and can be removed at any time when in use. The dirt from decoration will not affect the later use of the fire sprinkler head. In addition, with this utility model structure, the connector and protective cover are first installed on the ceiling during the initial installation. The fire sprinkler head can then be directly screwed on and installed later. The installation of the fire sprinkler head has fewer steps and is convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an existing installation structure for fire sprinkler heads on ceilings;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] In the diagram: 1. Connector, 2. Ceiling, 3. Outer cover, 4. Fire sprinkler head, 5. Precast hole, 6. Connector, 7. Protective cover, 8. Slot, 9. Entry slot, 10. Buckle, 11. Retaining ring. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0019] Example: Figure 2 As shown, an installation structure for a fire sprinkler head on a ceiling includes a connector 1, a ceiling 2, an outer cover 3, and a fire sprinkler head 4. A pre-fabricated hole 5 is provided in the ceiling. A retaining ring 11 is provided on the connector. A threaded hole is provided in the lower connecting end of the connector for connecting the fire sprinkler head. An external thread is provided on the outer side of the lower connecting end of the connector. A connector head 6 is provided on the top of the outer cover. An internal threaded hole is provided in the center of the connector head. The internal threaded hole is connected to the external thread at the bottom of the connector. The outer diameter of the connector head is matched with the pre-fabricated hole. A center hole is provided in the center of the bottom of the outer cover for the connecting end of the fire sprinkler head to pass through. A groove 8 is provided around the outer edge of the bottom of the outer cover. A protective cover 7 is engaged in the groove and covers the fire sprinkler head.

[0020] The protective cover is made of transparent plastic. The center hole of the outer cover matches the outer diameter of the connection end of the fire sprinkler head.

[0021] The slot has two entry slots 9, and the protective cover connection has two protruding buckles 10. The buckles are inserted into the slots and rotated to lock in place and prevent them from coming off.

[0022] The slot has an L-shaped cross-section. The diameter of the retaining ring on the connector is larger than the inner diameter of the pre-drilled hole. The outer cover is integrally injection molded.

[0023] In use, this invention allows for easy installation of the fire sprinkler head by first connecting the connector and protective cover to the ceiling during the initial ceiling installation phase. The fire sprinkler head can then be directly screwed on and installed. This streamlined installation process minimizes steps and makes installation convenient. Furthermore, after installing the fire sprinkler head, a detachable protective cover is installed on the outer casing. This cover, in conjunction with the fire sprinkler head cover, provides protection during renovation and can be removed at any time before use, preventing dirt or grime from affecting the fire sprinkler head's later performance.

[0024] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A mounting structure for a ceiling fire sprinkler head comprising a fitting, a ceiling, a cover and a fire sprinkler head, the ceiling having a preformed hole therein, the improvement wherein, The joint is provided with a baffle ring, a threaded hole is arranged in the lower connecting end of the joint, the lower connecting end of the joint is provided with an external thread, the top of the cover is provided with a connecting head, the center of the connecting head is provided with an internal thread hole, the internal thread hole is connected with the external thread of the lower part of the joint, the external diameter of the connecting head is matched with the prefabricated hole, the bottom center of the cover is provided with a center hole for passing through the connecting end of the fire sprinkler head, the outer edge of the bottom of the cover is provided with a ring of clamping grooves, a protective cover is clamped and connected in the clamping grooves, and the protective cover cooperates with the cover to protect the fire sprinkler head. Two entering clamping holes are arranged in the clamping groove, two protruding buckles are arranged at the connecting position of the protective cover, the buckles are inserted into the clamping holes, and the buckles are prevented from being separated after being rotated.

2. A mounting structure for a ceiling-mounted fire protection sprinkler head according to claim 1, wherein The protective cover is a transparent plastic protective cover.

3. The mounting structure for a ceiling fire sprinkler head of claim 1 wherein, The center hole of the cover is matched with the external diameter of the connecting end of the fire sprinkler head.

4. The mounting structure for a ceiling fire protection sprinkler head of claim 1 wherein, The cross section of the clamping groove is L-shaped.

5. The mounting structure for a ceiling fire protection sprinkler head of claim 1 wherein, The diameter of the baffle ring on the joint is greater than the inner diameter of the prefabricated hole.

6. The mounting structure for a ceiling fire protection sprinkler head of claim 1 wherein, The cover is integrally injection molded.