A fire sprinkler head assembly

Abstract

This utility model relates to the field of fire protection technology and discloses a fire sprinkler head assembly, including a base and an upper connecting pipe. A fixing ring is slidably connected to the inner bottom wall of the base, and a sealing plate is sleeved inside the fixing ring. A dynamic sealing component is inserted into the top of the fixing ring. An insert is fixedly connected to the bottom of the upper connecting pipe, and locking blocks are fixedly connected to both sides of the insert. A limit component is sleeved on the bottom surface of the insert. The dynamic sealing component includes a movable ring inserted into the top of the fixing ring, and several sets of support springs are fixedly connected to the top of the movable ring. A connecting ring is fixedly connected to the top of each support spring. This fire sprinkler head assembly, through the setting of the dynamic sealing component, achieves a dynamic sealing effect, effectively preventing leakage caused by pipeline pressure fluctuations or slight vibrations in non-fire conditions, ensuring long-term stable pressure within the pipeline, and improving the service life of the fire sprinkler head assembly.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a fire sprinkler head assembly. Background Technology

[0002] Fire sprinkler head assemblies are commonly used in automatic fire alarm systems and are a key component of fire sprinkler systems. They automatically spray water to extinguish fires by sensing temperature changes. The sprinkler head housing is usually made of corrosion-resistant metal (such as copper or stainless steel) to protect the internal components. The heat-sensing element is usually a glass bulb or metal plate that breaks or changes when the temperature reaches a certain threshold, thereby triggering the sprinkler head to switch on and off.

[0003] Patent document CN221229862U discloses a fire sprinkler head assembly and duct system. The fire sprinkler head assembly includes: a fastening bolt, a rigid pipe, and a sprinkler head. The sprinkler head is connected to the outlet end of the rigid pipe. The rigid pipe has a fastening thread on its circumferential surface and a limiting structure located on the side of the fastening thread facing the sprinkler head. The fastening bolt is connected to the rigid pipe through the fastening thread, and the fastening bolt and the limiting structure cooperate to form a duct clamping gap. When installing the fire sprinkler head assembly, the rigid pipe is inserted into the mounting hole of the duct. The limiting structure and part of the fastening thread are located within the space enclosed by the duct. The edge of the mounting hole of the duct is located in the duct clamping gap between the fastening bolt and the limiting structure. When the fastening bolt is tightened outside the duct, the duct clamping gap gradually narrows, clamping the edge of the mounting hole of the duct, thus preventing the rigid pipe from easily detaching from the duct.

[0004] However, existing fire sprinkler head assemblies are prone to leakage when in use, especially when there is no fire, due to pressure fluctuations or slight vibrations in the pipeline. This makes it difficult to dynamically seal and ensure stable pressure inside the pipeline, thus shortening the service life of the fire sprinkler head assemblies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a fire sprinkler head assembly that solves the problem mentioned in the background art that existing fire sprinkler head assemblies are prone to leakage when in use, especially when there is no fire, due to pressure fluctuations or slight vibrations in the pipeline. This makes it difficult to dynamically seal and ensure stable pressure inside the pipeline, thus shortening the service life of the fire sprinkler head assembly.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fire sprinkler head assembly, comprising a base and an upper connecting pipe, wherein a fixing ring is slidably connected to the inner bottom wall of the base, a sealing plate is sleeved inside the fixing ring, a dynamic sealing assembly is inserted into the top of the fixing ring, an insert is fixedly connected to the bottom of the upper connecting pipe, and locking blocks are fixedly connected to both sides inside the insert, a limiting assembly is sleeved on the bottom surface of the insert, the dynamic sealing assembly includes a movable ring inserted into the top of the fixing ring, a plurality of support springs are fixedly connected to the top of the movable ring, a connecting ring is fixedly connected to the top of the support spring, and a fixing sleeve is sleeved on the surface of the connecting ring; the limiting assembly includes a support ring sleeved on the bottom surface of the insert, a plurality of telescopic springs are fixedly connected to the bottom of the support ring, and a pressure ring is fixedly connected to the bottom end of the telescopic spring.

[0009] As a further embodiment of this utility model, a lower connecting pipe is inserted into the bottom of the insertion tube, and a limiting plate is fitted onto the surface of both the lower and upper connecting pipes. The limiting plate serves to support and straighten the tube.

[0010] As a further embodiment of this utility model, the lower tube has a slot inside that matches the locking block, and the bottom of the lower tube is threaded with a threaded connector. The threaded connector facilitates threaded assembly and disassembly.

[0011] As a further embodiment of this utility model, the fixing sleeve is fitted inside the threaded joint, and the threaded joint is fixedly connected to the top surface of the base. The fixing sleeve serves to support the movable ring.

[0012] As a further embodiment of this utility model, a support frame is fixedly connected to both sides of the base, and a fixed seat is fixedly connected to the bottom of the support frame. The fixed seat serves to connect the splash plate.

[0013] As a further embodiment of this utility model, a splash plate is rotatably connected to the bottom of the fixed base, and a glass ball is fixedly connected to the top of the fixed base. The glass ball facilitates the squeezing and breaking of the internal expanding liquid when heated, thus facilitating spraying.

[0014] As a further embodiment of this utility model, the glass ball is filled with an expanding liquid, and the glass ball is fixedly connected to the bottom of the sealing plate. The sealing plate serves to seal the water outlet.

[0015] (III) Beneficial Effects

[0016] This utility model provides a fire sprinkler head assembly, which has the following beneficial effects:

[0017] 1. This fire sprinkler head assembly, through the setting of a dynamic sealing component, utilizes a movable ring inserted into a fixed ring during use. The glass bulb supports the sealing plate and the fixed ring, while the fixed ring remains in a fixed position. This allows the movable ring to slide within the fixed sleeve, compressing the support spring. The support spring, in its recovery deformation, generates elastic force, pushing the movable ring in the opposite direction, causing it to tightly adhere to the fixed ring. This achieves a dynamic sealing effect, effectively preventing leakage caused by pipeline pressure fluctuations or slight vibrations in non-fire conditions. It ensures long-term stable pressure within the pipeline and extends the service life of the fire sprinkler head assembly.

[0018] 2. This fire sprinkler head assembly, through the setting of the limiting component, allows for easy disassembly of the sprinkler head when the lower connecting pipe is pushed. This causes the lower connecting pipe to pressurize the pressure ring and slide on the surface of the insertion pipe. The telescopic spring contracts under force, thereby rotating the lower connecting pipe. This causes the locking block on the insertion pipe to slide along the locking groove inside the lower connecting pipe, thus pulling the lower connecting pipe away from the surface of the insertion pipe. This achieves the effect of convenient disassembly and assembly of the sprinkler head, facilitating personnel to replace or repair it. Sprinkler head disassembly can be completed without special tools, significantly improving maintenance efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the dynamic sealing component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0023] In the diagram: 1. Base; 2. Upper connecting pipe; 3. Fixing ring; 4. Sealing plate; 5. Dynamic sealing assembly; 501. Movable ring; 502. Support spring; 503. Fixing sleeve; 504. Connecting ring; 6. Insert pipe; 7. Locking block; 8. Limiting assembly; 801. Support ring; 802. Telescopic spring; 803. Pressure ring; 9. Lower connecting pipe; 10. Limiting plate; 11. Threaded joint; 12. Support frame; 13. Fixing seat; 14. Splash plate; 15. Glass ball. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1 to 4This utility model provides a technical solution: a fire sprinkler head assembly, including a base 1 and an upper pipe 2. A fixing ring 3 is slidably connected to the inner bottom wall of the base 1. A sealing plate 4 is sleeved inside the fixing ring 3. A dynamic sealing component 5 is inserted into the top of the fixing ring 3. Through the setting of the dynamic sealing component 5, a dynamic sealing effect is achieved, which can effectively prevent leakage caused by pipeline pressure fluctuations or slight vibrations in non-fire conditions, ensure long-term stable pressure in the pipeline, and improve the service life of the fire sprinkler head assembly. An insert pipe 6 is fixedly connected to the bottom of the upper pipe 2. A locking block 7 is fixedly connected to both sides inside the insert pipe 6. A limiting component 8 is sleeved on the bottom surface of the insert pipe 6. The design of component 8 facilitates the easy disassembly and assembly of the sprinkler heads, allowing for convenient replacement or maintenance by personnel. Sprinkler head disassembly can be completed without special tools, significantly improving maintenance efficiency. The dynamic sealing component 5 includes a movable ring 501 inserted into the top of the fixed ring 3. Several sets of support springs 502 are fixedly connected to the top of the movable ring 501. A connecting ring 504 is fixedly connected to the top of the support springs 502. A fixed sleeve 503 is fitted onto the surface of the connecting ring 504. The limiting component 8 includes a support ring 801 fitted onto the bottom surface of the insertion tube 6. Several sets of telescopic springs 802 are fixedly connected to the bottom of the support ring 801. A pressure ring 803 is fixedly connected to the bottom end of the telescopic springs 802.

[0026] The bottom of the cannula 6 is connected to a lower tube 9. Both the surface of the lower tube 9 and the upper tube 2 are fitted with a limiting plate 10. The limiting plate 10 provides support and straightens the tube.

[0027] The lower pipe 9 has a slot inside that matches the locking block 7. The bottom of the lower pipe 9 is threadedly connected to a threaded connector 11, which facilitates threaded disassembly and assembly.

[0028] The fixed sleeve 503 is fitted inside the threaded joint 11, which is fixedly connected to the top surface of the base 1. The fixed sleeve 503 serves to support the movable ring 501.

[0029] Support frames 12 are fixedly connected to both sides of the base 1, and a fixed seat 13 is fixedly connected to the bottom of the support frame 12. The fixed seat 13 serves to connect the splash plate 14.

[0030] A splash plate 14 is rotatably connected to the bottom of the fixed base 13, and a glass ball 15 is fixedly connected to the top of the fixed base 13. The glass ball 15 facilitates the squeezing and breaking of the internal expanding liquid when heated, thus facilitating spraying.

[0031] The glass ball 15 is filled with an expanding liquid. The glass ball 15 is fixedly connected to the bottom of the sealing plate 4. The sealing plate 4 is used to seal the water outlet.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: When in use, the movable ring 501 is inserted into the fixed ring 3, and then the glass ball 15 supports the sealing plate 4 and the fixed ring 3. The position of the fixed ring 3 remains unchanged, so that the movable ring 501 slides in the fixed sleeve 503, compressing the support spring 502. The support spring 502 generates elastic force to restore its deformation, pushing the movable ring 501 in the opposite direction, so that the movable ring 501 is tightly attached to the fixed ring 3.

[0034] Second step: When it is necessary to disassemble the spray head, push the lower connector 9 so that the lower connector 9 squeezes the pressure ring 803 and slides on the surface of the insertion tube 6. The telescopic spring 802 is compressed by force, and then the lower connector 9 is rotated so that the locking block 7 on the insertion tube 6 slides along the locking groove in the lower connector 9, and then pulls the lower connector 9 away from the surface of the insertion tube 6.

[0035] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0036] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0037] 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 fire sprinkler head assembly comprising a base (1) and an upper riser (2), characterised in that: A fixing ring (3) is slidably connected to the inner bottom wall of the base (1). A sealing plate (4) is sleeved inside the fixing ring (3). A dynamic sealing component (5) is inserted into the top of the fixing ring (3). An insertion tube (6) is fixedly connected to the bottom of the upper pipe (2). A locking block (7) is fixedly connected to both sides inside the insertion tube (6). A limit component (8) is sleeved on the bottom surface of the insertion tube (6). The dynamic sealing assembly (5) includes a movable ring (501) inserted into the top of the fixed ring (3). Several sets of support springs (502) are fixedly connected to the top of the movable ring (501). A connecting ring (504) is fixedly connected to the top of the support springs (502). A fixed sleeve (503) is sleeved on the surface of the connecting ring (504). The limiting component (8) includes a support ring (801) sleeved on the bottom surface of the insertion tube (6). Several sets of telescopic springs (802) are fixedly connected to the bottom of the support ring (801), and a pressure ring (803) is fixedly connected to the bottom end of the telescopic springs (802).

2. A fire sprinkler assembly according to claim 1, wherein: The bottom of the cannula (6) is connected to a lower tube (9), and the surfaces of both the lower tube (9) and the upper tube (2) are fitted with limit plates (10).

3. A fire sprinkler assembly according to claim 2, wherein: The lower tube (9) has a slot inside that is compatible with the card block (7), and the bottom of the lower tube (9) is threadedly connected to a threaded joint (11).

4. A fire sprinkler assembly according to claim 3, wherein: The fixed sleeve (503) is fitted inside the threaded joint (11), and the threaded joint (11) is fixedly connected to the top surface of the base (1).

5. A fire sprinkler assembly according to claim 1, wherein: Both sides of the base (1) are fixedly connected to support frames (12), and the bottom of the support frame (12) is fixedly connected to a fixed seat (13).

6. A fire sprinkler head assembly according to claim 5, characterized in that: A splash plate (14) is rotatably connected to the bottom of the fixed base (13), and a glass ball (15) is fixedly connected to the top of the fixed base (13).

7. A fire sprinkler head assembly according to claim 6, characterized in that: The glass ball (15) is filled with an expanding liquid, and the glass ball (15) is fixedly connected to the bottom of the sealing plate (4).

Images