A linkage fire sprinkler and linkage fire protection system

Abstract

This invention discloses a linked fire sprinkler head and its linked fire protection system, belonging to the field of fire protection technology. This product uses a pressure triggering device to contact the fire bead. When a sprinkler head in the linked pipeline connected to the main body is triggered by high temperature, the water pressure inside the linked pipeline will decrease momentarily. At this time, the pressure triggering device will push the fire bead to move towards the guide stop. When the fire bead contacts the guide stop, the inclined surface on the guide stop will cause the fire bead to tilt towards the inclined surface. After the fire bead tilts, the lateral force on the fire bead will increase, resulting in an irreversible rapid tilt and ejection from the main body. After the fire bead is ejected, the top plug loses its support. At this time, the fire water in the linked pipeline will push open the top plug to achieve spraying.

Description

Technical Field

[0001] This invention discloses a linked fire sprinkler head and its linked fire protection system, belonging to the field of fire protection technology. Background Technology

[0002] Fire sprinklers are installed on indoor ceilings. When exposed to high temperatures, the fire-fighting glass beads will burst, thus activating the sprinkler head to spray water.

[0003] Existing fire sprinklers are all single-point heat-sensitive triggers. In actual fire scenes, the combustion produces dense smoke, which is more harmful to people than direct open flames. The smoke also obstructs vision and hinders escape. While heat-sensitive sprinklers can extinguish fires, the rate of smoke diffusion exceeds the rate at which heat is transferred to the sprinkler to activate it. This means that even when the sprinkler is spraying, the smoke has already diffused out, making it ineffective in blocking the fire. Furthermore, existing sprinklers that use smoke and optical sensors for linkage are prone to failure in high-temperature and high-pressure environments. Both smoke and optical sensors require power; in extreme power outages, the entire linkage system will fail, posing a safety hazard in the fire protection field.

[0004] A new solution is proposed to address the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a linked fire sprinkler head and its linked fire protection system in order to solve the above-mentioned problems.

[0006] This invention achieves the above objectives through the following technical solution: a linked fire sprinkler head and its linked fire suppression system, comprising:

[0007] The main body is threadedly connected to the linkage pipeline and is used to spray fire-fighting water when a fire occurs;

[0008] The top plug, which is slidably connected to the main body, is used to block the outlet between the main body and the outside world, thus serving as an opening and closing mechanism for the main body.

[0009] The fire-fighting bead is slidably connected to the main body and is used to support the top plug, so that the top plug seals the outlet of the main body. It will burst when exposed to high temperature, thus achieving the effect of thermal triggering.

[0010] A guide stop, located at the outlet of the main body, is an inclined surface used to guide the fire-fighting beads to move laterally;

[0011] A pressure triggering device, installed on the main body, is used to abut against the fire bead, giving it the force to move toward the guide stop;

[0012] The pressure triggering device includes an abutment block, a pressure block, and a spring. The abutment block slides on the body, the pressure block is threadedly connected to the body, and the spring is placed between the pressure block and the abutment block.

[0013] Preferably, the guide stop is provided with a detachable retaining sleeve, which is used to prevent the fire bead from being guided away by the guide stop before the installation is completed.

[0014] Preferably, the body is provided with a guide hole for keeping the fire-fighting bead in a straight line parallel to the direction of movement of the top plug before it contacts the guide stop.

[0015] Preferably, the thread distance in the guide hole is greater than the thickness of the pressure block.

[0016] Preferably, the top plug is made of a hard material, and its contact surface with the body is provided with a plurality of sealing grooves for placing the sealing ring.

[0017] A linkage fire suppression system for linkage fire sprinklers includes:

[0018] Fire protection piping, fixed to the wall or ceiling, is used to supply water to branch pipes;

[0019] The linkage pipeline connects multiple units in parallel, and is used to directly supply fire water to the main unit;

[0020] A check valve is installed between fire protection pipelines and interlocking pipelines to maintain the pressure in the interlocking pipelines and prevent accidental activation caused by other interlocking pipelines.

[0021] Pressure tanks are installed on the linkage pipeline to maintain a pressure greater than that in the fire protection pipeline.

[0022] Preferably, the linkage pipeline is equipped with an alarm device for real-time pressure monitoring, which is connected to the water pump of the fire-fighting pipeline via electrical signal.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: This product uses a pressure triggering device to contact the fire bead. When a nozzle in the linkage pipeline connected to the main body is triggered by high temperature, the water pressure inside the linkage pipeline will decrease momentarily. At this time, the pressure triggering device will push the fire bead to move towards the guide stop. When the fire bead contacts the guide stop, the inclined surface on the guide stop will cause the fire bead to tilt towards the inclined surface. When the fire bead tilts, the lateral force on the fire bead will increase, resulting in an irreversible rapid tilt and ejection from the main body. After the fire bead is ejected, the top plug loses its support. At this time, the fire water in the linkage pipeline will push the top plug open to achieve spraying. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention before installation;

[0025] Figure 2 This is a schematic cross-sectional view of the present invention when it is in use;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure before the invention is triggered;

[0027] Figure 4 This is a schematic diagram of the structure when the present invention is triggered;

[0028] Figure 5 This is a cross-sectional structural diagram of the present invention before installation;

[0029] Figure 6 This is a schematic diagram of a linkage fire protection system for a linkage fire sprinkler head according to the present invention.

[0030] Reference numerals in the attached diagram: 1. Body; 2. Top plug; 3. Guide stop; 4. Retaining sleeve; 5. Fire-fighting bead; 6. Abutment block; 7. Spring; 8. Pressure block. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In this description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention 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 the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a linkage-type fire sprinkler head includes:

[0033] Body 1, threaded connection to the linkage pipeline, is used to spray fire-fighting water when a fire occurs;

[0034] The top plug 2 is slidably connected to the body 1 and is used to block the outlet of the body 1 from the outside, thus serving as a switch for the body 1. The top plug 2 is made of hard material and its contact surface with the body 1 is provided with several sealing grooves for placing sealing rings.

[0035] Fire-fighting bead 5 is slidably connected to the main body 1 and is used to support the top plug 2, so that the top plug 2 seals the outlet of the main body 1. It will burst when exposed to high temperature, thus achieving the effect of thermal triggering.

[0036] Guide stop 3, located at the outlet of body 1, is an inclined surface used to guide the fire bead 5 to move laterally;

[0037] A pressure triggering device is installed on the main body 1 to abut against the fire bead 5 and give it the force to move toward the guide stop 3. The pressure triggering device includes an abutment block 6, a pressure block 8 and a spring 7. The abutment block 6 slides on the main body 1, the pressure block 8 is threadedly connected to the main body 1, and the spring 7 is placed between the pressure block 8 and the abutment block 6. A removable retaining sleeve 4 is provided on the guide stop 3. The retaining sleeve 4 is used to prevent the fire bead 5 from being guided away by the guide stop 3 before the installation is completed.

[0038] The installation of this product is the same as that of a traditional sprinkler head. After installation, the internal of the linkage pipeline is pressurized to the preset value. At this time, the retaining sleeve 4 can be removed. At this time, the pressure of the water in the linkage pipeline on the top plug 2 is balanced with the elastic force of the spring 7, and the two are kept in a fixed position. When the water pressure in the linkage pipeline decreases, the elastic force of the spring 7 will be greater than the pressure on the top plug 2. The top plug 2 will be pushed into the body 1 by the fire bead 5 pushed by the spring 7, causing it to slide. When the fire bead 5 moves, it will contact the guide stop 3, which will cause the guide stop 3 to generate a lateral component force on the fire bead 5, causing the fire bead 5 to be pushed to one side and tilt. At this time, the force balance between the fire bead 5 and the top plug 2 is broken, causing the fire bead 5 to be ejected. After the fire bead 5 is ejected, the top plug 2 loses its support, and the water in the linkage pipeline can then rush open the top plug 2 and spray. When performing maintenance, the retaining sleeve 4 needs to be fastened in advance for normal maintenance.

[0039] Existing sprinkler heads on the market also have linkage mechanisms, but these linkage mechanisms rely on sensors and circuit control, which can easily cause electronic equipment to malfunction in dense smoke and high-temperature environments. Ultimately, they still have to rely on heat transfer to cause the fire-fighting beads to burst. This product, on the other hand, relies on pure mechanical linkage, which is safe and reliable. It uses pressure waves to trigger the linkage quickly and accurately.

[0040] The main body 1 is provided with a guide hole to keep the fire bead 5 in a straight line parallel to the movement direction of the top plug 2 before it contacts the guide stop 3. The function of the guide hole is to prevent the fire bead 5 from being pushed away directly when it encounters lateral force, so that the product is only triggered by high temperature environment and water pressure in the linkage pipeline, reducing the possibility of accidental activation.

[0041] The thread distance in the guide hole is greater than the thickness of the pressure block 8, and the thickness of the pressure block 8 is less than the thread distance in the guide hole. This allows the pressure block 8 to have a travel distance within the guide hole, thereby adjusting the spring force of the spring 7 to balance the pressure in the linkage pipeline and achieve better response speed adjustment based on pressure.

[0042] like Figure 6 As shown, a linkage fire suppression system for linkage fire sprinklers includes:

[0043] Fire protection piping, fixed to the wall or ceiling, is used to supply water to branch pipes;

[0044] The linkage pipeline connects multiple main bodies 1 in parallel, and is used to directly supply fire water to main body 1;

[0045] A check valve is installed between fire protection pipelines and interlocking pipelines to maintain the pressure in the interlocking pipelines and prevent accidental activation caused by other interlocking pipelines.

[0046] Pressure tanks are installed on the linkage pipeline to maintain a pressure greater than that in the fire protection pipeline.

[0047] This system connects multiple linked fire sprinklers in parallel, so that when one linked fire sprinkler is triggered, the other linked fire sprinklers can respond quickly. It is suitable for installation in escape routes, so that when a fire occurs indoors, the linked fire sprinklers in the escape route can be activated directly, thereby using water curtain to block dense smoke and form an escape route, making people safer when escaping.

[0048] By utilizing the combination of a check valve and a pressure tank, the water pressure in the linkage pipeline can be higher than that in the fire protection pipeline. This allows the linked fire sprinklers to operate at a higher pressure than normal. When a linked fire sprinkler is activated, the water pressure in the linkage pipeline will decrease. The period during which the water pressure in the linkage pipeline drops to the same level as that in the fire protection pipeline is the triggering time for other linked fire sprinklers. When the water pressure in the linkage pipeline drops below that in the fire protection pipeline, the water in the fire protection pipeline will push open the check valve to replenish the water in the linkage pipeline, ensuring sufficient water for spraying.

[0049] An alarm device for real-time pressure monitoring is installed in the linkage pipeline. The device is electrically connected to the water pump in the fire pipeline. Through real-time pressure monitoring, it ensures that the linkage pipeline is in standby mode under normal conditions and will not experience pressure drop. If a sudden pressure drop is detected, the water pump can be directly driven to supply water and ensure that the fire water can be replenished in a timely manner.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A linked fire sprinkler characterized by, include: The main body is threadedly connected to the linkage pipeline and is used to spray fire-fighting water when a fire occurs; The top plug, which is slidably connected to the main body, is used to block the outlet between the main body and the outside world, thus serving as a switch on / off function for the main body. The fire-fighting bead is slidably connected to the main body and is used to support the top plug, so that the top plug seals the outlet of the main body. It will burst when exposed to high temperature, thus achieving the effect of thermal triggering. A guide stop, located at the outlet of the main body, is an inclined surface used to guide the fire-fighting beads to move laterally; A pressure triggering device, installed on the main body, is used to abut against the fire bead, giving it the force to move toward the guide stop; The pressure triggering device includes an abutment block, a pressure block, and a spring. The abutment block slides on the body, the pressure block is threadedly connected to the body, and the spring is placed between the pressure block and the abutment block. The triggering logic of the pressure triggering device is as follows: when the water pressure in the linkage pipeline decreases, the elastic force of the spring will be greater than the pressure on the top plug. The top plug will be pushed into the body by the fire-fighting ball pushed by the spring, causing it to slide and contact the guide stop and be popped open.

2. A linked fire sprinkler according to claim 1, wherein: The guide stop is provided with a detachable retaining sleeve, which is used to prevent the fire bead from being guided away by the guide stop before the installation is completed.

3. A linked fire sprinkler according to claim 2, wherein: The main body is provided with a guide hole for keeping the fire-fighting ball in a straight line parallel to the direction of movement of the top plug before it contacts the guide stop.

4. A linkage-type fire sprinkler head according to claim 3, characterized in that: The thread distance within the guide hole is greater than the thickness of the pressure block.

5. A linkage-type fire sprinkler head according to claim 1, characterized in that: The top plug is made of a hard material, and its contact surface with the body is provided with several sealing grooves for placing sealing rings.

6. A linkage fire suppression system for a linkage fire sprinkler head, using a linkage fire sprinkler head as described in any one of claims 1-5, characterized in that: include: Fire protection piping, fixed to the wall or ceiling, is used to supply water to branch pipes; The linkage pipeline connects multiple bodies in parallel, and is used to directly supply fire water to the body; A check valve is installed between fire protection pipelines and interlocking pipelines to maintain the pressure in the interlocking pipelines and prevent accidental activation caused by other interlocking pipelines. Pressure tanks are installed on the linkage pipeline to maintain a pressure greater than that in the fire protection pipeline.

7. The linkage fire protection system for a linkage fire sprinkler head according to claim 6, characterized in that: The linkage pipeline is equipped with an alarm device for real-time pressure monitoring, which is connected to the water pump of the fire protection pipeline via electrical signal.

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