Reusable fire sprinkler

Abstract

The utility model provides a reusable fire sprinkler which comprises a valve body, a plug, a shifting piece and a temperature control spring, the valve body is externally connected to a water pipe, a through hole for water flow to pass through is formed in the bottom of the valve body, supporting arms extend downwards from the two sides of the valve body, a supporting seat is arranged at the position, coinciding with the through hole, between the two supporting arms, and the plug blocks the through hole. The shifting piece is connected between the plug and the supporting seat in an abutting mode, the temperature control spring is installed between the shifting piece and the plug, and the shifting piece and the plug are pushed to be separated from the valve body through deformation of the temperature control spring. According to the fire sprinkler capable of being repeatedly used, water spraying and fire extinguishing are achieved through deformation of the temperature control spring, the fire sprinkler can be repeatedly used after a fire disaster, and the maintenance cost and time are reduced; the stability and the reliability of the nozzle are improved through the design of the sleeve and the groove; a supporting spring and a transverse plate are arranged, so that the sealing performance and stability of the plug are enhanced; the sliding range of the shifting piece is limited through the design of the blocking rod and the sliding groove, and the triggering reliability of the spray head is improved.

Description

Technical Field

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

[0002] Fire protection systems play a vital role in modern buildings, with their core function being to rapidly initiate fire suppression procedures in the event of a fire to minimize casualties and property damage. Fire sprinklers, as a key component of the system, directly impact the effectiveness of fire suppression. However, existing fire sprinklers generally suffer from several problems that limit their effectiveness and cost-effectiveness in practical applications.

[0003] In the technical field, most fire sprinklers currently in use are designed for single use. Once triggered, their internal structure undergoes irreversible changes, rendering them unusable. While this design can meet firefighting needs to some extent, its non-reusable nature brings many inconveniences. For example, after a fire alarm is falsely triggered or a small-scale fire occurs, a large number of sprinklers need to be replaced, increasing maintenance costs and time.

[0004] For locations requiring repeated fire response, such as laboratories or industrial plants, disposable sprinkler heads cannot meet the need for reuse. In existing technology, fire sprinkler heads typically use a glass body filled with kerosene as a trigger point. When the temperature is reached, the glass body breaks, the seal on the valve body pops open, and spraying occurs. After a small fire, a new glass body needs to be purchased and installed, increasing costs and making it impossible to restore the fire sprinkler head in a timely manner. Utility Model Content

[0005] The purpose of this invention is to propose a reusable fire sprinkler head to solve the problem that existing fire sprinklers cannot be reused after use.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A reusable fire sprinkler head includes a valve body, a plug, a lever, and a temperature control spring. The valve body is externally connected to a water pipe. The bottom of the valve body has a through hole for water flow. Support arms extend downward from both sides of the valve body, and a support seat is provided between the two support arms at the point where they coincide with the through hole. The plug seals the through hole, the lever abuts against the plug and the support seat, and the temperature control spring is installed between the lever and the plug. The deformation of the temperature control spring pushes the lever and the plug away from the valve body.

[0008] By adopting the above technical solution, the temperature control spring deforms when the temperature rises, pushing the lever and plug away from the valve body to achieve water spraying for fire extinguishing. After the fire, the temperature control spring returns to its original state, and the lever and plug can be reinstalled, enabling the sprinkler head to be reused and reducing maintenance costs.

[0009] Furthermore, a sleeve for sliding the plug is provided at the through hole of the valve body, and a groove is provided on the side of the sleeve for the temperature control spring to abut against.

[0010] By adopting the above technical solution, the design of the sleeve and groove provides a stable installation and sliding space for the plug and temperature control spring, ensuring the reliability and stability of the nozzle during use.

[0011] Furthermore, the sleeve and the through hole are arranged coaxially, and the plug slides inside the sleeve to seal or open the through hole.

[0012] By adopting the above technical solution, the coaxially arranged sleeve and through hole make the plug slide more smoothly, improving the response speed and water spraying effect of the nozzle.

[0013] Furthermore, a support spring is provided between the plug and the lever, and a cross plate is provided at each end of the support spring.

[0014] By adopting the above technical solution, the design of the support spring and the cross plate increases the stability of the plug, ensuring that the plug can firmly seal the through hole when not triggered, thus improving the sealing performance of the nozzle.

[0015] Furthermore, one of the cross plates is provided with a circular sleeve into which a support spring extends.

[0016] By adopting the above technical solution, the design of the circular sleeve restricts the deformation direction of the support spring, enabling it to work more stably and extending the service life of the nozzle.

[0017] Furthermore, the paddle includes a pad disposed at the bottom of the support spring, and a side plate bent at one end of the pad and connected to the temperature control spring. The pad is provided with a boss that abuts against the horizontal plate.

[0018] By adopting the above technical solution, the design of the pad and side plate allows the paddle to better withstand the thrust of the temperature control spring, and the setting of the boss increases the contact area between the paddle and the support spring, thereby enhancing the trigger sensitivity of the nozzle.

[0019] Furthermore, the length of the side plate is greater than the length of the pad, and the temperature control spring is located at the top of the side plate.

[0020] By adopting the above technical solution, the longer side plate and the temperature control spring at the top make the force on the paddle more uniform, thus improving the triggering reliability of the nozzle.

[0021] Furthermore, a stop bar with a limit lever is provided at the bottom of the sleeve, and a sliding groove for the lever to slide is provided on the stop bar. A counterweight is provided at the end of the lever away from the temperature control spring.

[0022] By adopting the above technical solutions, the design of the stop bar and the slide groove limits the sliding range of the paddle, and the setting of the counterweight improves the stability of the paddle, ensuring the reliability and safety of the nozzle during use.

[0023] Furthermore, the bottom of the support base is threaded with a stud, which passes through the support base and abuts against the pad.

[0024] By adopting the above technical solution, the stud design makes the connection between the support base and the pad more secure, thus improving the overall stability of the nozzle.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The reusable fire sprinkler head described in this utility model achieves water spraying for fire extinguishing through the deformation of a temperature control spring. It can be reused after a fire, reducing maintenance costs and time. The design of the sleeve and groove improves the stability and reliability of the sprinkler head. The setting of the support spring and cross plate enhances the sealing performance and stability of the plug. The design of the stop bar and slide groove limits the sliding range of the lever, improving the triggering reliability of the sprinkler head. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0028] In the attached diagram:

[0029] Figure 1 This is a schematic diagram of the overall structure of the reusable fire sprinkler head described in an embodiment of the present invention;

[0030] Figure 2 This is an exploded view of the reusable fire sprinkler head described in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the sleeve portion according to an embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the support spring portion described in an embodiment of the present utility model;

[0033] Figure 5 This is an exploded view of the paddle and stop lever described in an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Valve body; 2. Plug;

[0036] 3. Paddle shifter; 301. Pad; 302. Side plate; 303. Boss;

[0037] 4. Temperature control spring; 5. Through hole; 6. Support arm; 7. Support base; 8. Sleeve; 9. Groove; 10. Support spring; 11. Horizontal plate; 12. Round sleeve; 13. Stop bar; 14. Slide groove; 15. Counterweight; 16. Stud. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] This embodiment relates to a reusable fire sprinkler head, the overall structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a valve body 1, a plug 2, a lever 3, and a temperature control spring 4.

[0043] The valve body 1 is externally connected to a water pipe. A through hole 5 for water to flow through is opened at the bottom of the valve body 1. Support arms 6 extend downward on both sides of the valve body 1. A support seat 7 is set at the point where the two support arms 6 overlap with the through hole 5. A plug 2 is sealed at the through hole 5. A lever 3 abuts against the plug 2 and the support seat 7. A temperature control spring 4 is installed between the lever 3 and the plug 2. Through the deformation of the temperature control spring 4, the lever 3 and the plug 2 are pushed away from the valve body 1.

[0044] It is worth mentioning that the valve body 1 is a common fire sprinkler valve in the prior art. The through hole 5 is opened in the middle of the valve body 1, and the water flows out of the valve body 1 through the through hole 5 to achieve spraying. The plug 2 can block the through hole 5 and keep it sealed in the through hole 5 when there is no fire. The support arm 6 and the support base 7 can hold the plug 2 and the lever 3 in the through hole 5. The temperature control spring 4 is a memory spring made of nickel-titanium alloy. At room temperature, the temperature control spring 4 is in a contracted state. When heated, the temperature control spring 4 is in an open state. When the temperature control spring 4 is open, it will push the lever 3 to move. The center of gravity of the lever 3 will shift and fall off the support base 7. After the lever 3 is no longer supported, the plug 2 will open due to gravity and water pressure, ensuring that the valve body 1 can be opened smoothly in the event of a fire. After the fire, the temperature control spring 4 cools down and returns to the contracted state, and the lever 3, the plug 2 and the temperature control spring 4 can be reinstalled.

[0045] Based on the above overall description, this embodiment presents an exemplary structure of a reusable fire sprinkler head, such as... Figure 3 As shown, a sleeve 8 for the plug 2 to slide is provided at the through hole 5 of the valve body 1. A groove 9 is provided on the side of the sleeve 8 for the temperature control spring 4 to abut against. It should be noted that the sleeve 8 and the through hole 5 are arranged coaxially. The plug 2 slides in the sleeve 8 to block or open the through hole 5. This arrangement facilitates the installation of the plug 2, improves the stability of the plug 2, and prevents it from falling off by itself. The groove 9 is provided for the temperature control spring 4 to be placed. The other end of the temperature control spring 4 is installed on the lever 3. When the temperature control spring 4 deforms and abuts against the sleeve 8, it pushes the lever 3 to move, thereby causing the plug 2 to fall out of the sleeve 8.

[0046] As a preferred option, such as Figure 4As shown, in this embodiment, a support spring 10 is provided between the plug 2 and the lever 3, and a horizontal plate 11 is provided at each end of the support spring 10. Specifically, the function of the support spring 10 is to ensure that the plug 2 can always be sealed at the through hole 5. When the lever 3 moves, the center of gravity changes, which can accelerate the speed at which the plug 2 leaves the through hole 5, thereby improving the spraying efficiency. The horizontal plate 11 can improve the stability of the support spring 10, increase the contact area between the plug 2 and the lever 3, and prevent the plug 2 from leaving the through hole 5 due to the instability of the support spring 10. A circular sleeve 12 is provided on one of the horizontal plates 11 for the support spring 10 to extend into and out. The function of the circular sleeve 12 is to ensure that the spring extends and retracts as much as possible, and to prevent the spring from deforming to both sides due to long-term force. When the valve body 1 is in the blocked state, the spring is compressed between the plug 2 and the lever 3.

[0047] As a preferred option, such as Figure 5 As shown, in this embodiment, the paddle 3 includes a pad 301 disposed at the bottom of the support spring 10 and a side plate 302 bent and connected to the temperature control spring 4 at one end of the pad 301. The pad 301 is provided with a boss 303 that abuts against the horizontal plate 11. Specifically, the boss 303 contacts the horizontal plate 11 at the bottom of the support spring 10. When the paddle 3 moves, the force on the horizontal plate 11 changes, and the compression force of the support spring 10 changes, thereby causing the support spring 10 to pop out. The plug 2 is not supported by the compression force, so it can fall out of the sleeve 8, thereby realizing the spraying of the valve body 1. The length of the side plate 302 is greater than the length of the pad 301, and the temperature control spring 4 is located at the top of the side plate 302. This arrangement ensures that the temperature control spring 4 can push the paddle 3 to move with a small force when it pops out.

[0048] As a preferred option, it remains as follows Figure 5 As shown, in this embodiment, a stop bar 13 for limiting the paddle 3 is provided at the bottom of the sleeve 8. The stop bar 13 has a groove 14 for the paddle 3 to slide. A counterweight 15 is provided at the end of the paddle 3 away from the temperature control spring 4. Specifically, the counterweight 15 is located at the end of the pad 301 away from the side plate 302. The setting of the counterweight 15 ensures that the paddle 3 can remain stable under the action of force for a long time, avoiding the problem of center of gravity deviation. The lever extends to the pad 301 of the paddle 3 to ensure that the pad 301 will not deviate in other directions after receiving the support force of the support spring 10. The width of the groove 14 is equal to the width of the paddle 3 to prevent the paddle 3 from swinging laterally. However, when the temperature control spring 4 is deformed, the paddle 3 will disengage from the bottom of the groove 14, thereby causing the support spring 10 to deviate.

[0049] As a preferred option, such as Figure 2As shown in this embodiment, a stud 16 is threadedly connected to the bottom of the support base 7. The stud 16 passes through the support base 7 and abuts against the pad 301. Specifically, the stud 16 moves up and down on the support base 7. The movement of the stud 16 causes the support spring 10 to move, which can adjust the compression force of the support spring 10 and ensure the sealing of the plug 2 and the through hole 5.

[0050] The reusable fire sprinkler in this embodiment sprays water to extinguish fires by deforming the temperature control spring 4. It can be reused after a fire, reducing maintenance costs and time. The design of the sleeve 8 and the groove 9 improves the stability and reliability of the sprinkler. The setting of the support spring 10 and the cross plate 11 enhances the sealing performance and stability of the plug 2. The design of the stop bar 13 and the slide 14 limits the sliding range of the lever 3, improving the triggering reliability of the sprinkler.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reusable fire sprinkler head, characterized in that: Includes valve body (1), plug (2), lever (3) and temperature control spring (4); The valve body (1) is connected to the water pipe. A through hole (5) for water to flow through is provided at the bottom of the valve body (1). Support arms (6) extend downward on both sides of the valve body (1). A support seat (7) is provided between the two support arms (6) at the point where they overlap with the through hole (5). The plug (2) is sealed at the through hole (5), the lever (3) abuts between the plug (2) and the support seat (7), and the temperature control spring (4) is installed between the lever (3) and the plug (2). Through the deformation of the temperature control spring (4), the lever (3) and the plug (2) are pushed away from the valve body (1).

2. The reusable fire sprinkler head according to claim 1, characterized in that: The valve body (1) has a through hole (5) with a sleeve (8) for the plug (2) to slide, and the sleeve (8) has a groove (9) on its side for the temperature control spring (4) to abut.

3. The reusable fire sprinkler head according to claim 2, characterized in that: The sleeve (8) and the through hole (5) are arranged coaxially, and the plug (2) slides inside the sleeve (8) to block or open the through hole (5).

4. The reusable fire sprinkler head according to claim 1, characterized in that: A support spring (10) is provided between the plug (2) and the lever (3), and a cross plate (11) is provided at both ends of the support spring (10).

5. The reusable fire sprinkler head according to claim 4, characterized in that: One of the cross plates (11) is provided with a circular sleeve (12) into which the support spring (10) extends.

6. The reusable fire sprinkler head according to claim 1, characterized in that: The paddle (3) includes a pad (301) disposed at the bottom of the support spring (10) and a side plate (302) bent and disposed at one end of the pad (301) and connected to the temperature control spring (4). The pad (301) is provided with a boss (303) that abuts against the horizontal plate (11).

7. The reusable fire sprinkler head according to claim 6, characterized in that: The length of the side plate (302) is greater than the length of the pad (301), and the temperature control spring (4) is located at the top of the side plate (302).

8. The reusable fire sprinkler head according to claim 2, characterized in that: The bottom of the sleeve (8) extends to provide a stop bar (13) for the limit lever (3). The stop bar (13) has a sliding groove (14) for the lever (3) to slide. The end of the lever (3) away from the temperature control spring (4) is provided with a counterweight (15).

9. The reusable fire sprinkler head according to claim 1, characterized in that: The bottom of the support base (7) is threaded with a stud (16), which passes through the support base (7) and the pad (301) and abuts against each other.

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