Fire-fighting box with foam extinguisher waste water discharge delay closing function

Abstract

The utility model provides a fire-fighting box with a foam extinguisher waste water discharge delay closing function, and belongs to the technical field of fire fighting. The utility model discloses a fire-fighting box with a foam extinguisher wastewater discharge delay closing function. The fire-fighting box comprises a box body; the first end of the three-way pipe is connected with a fire hydrant, and the second end of the three-way pipe is connected with a water outlet pipe; an outlet of the foam box is communicated with the water outlet pipe; the delay valve is mounted at the third end of the three-way pipe, and the delay valve is used for being closed after drainage is opened for preset time. The drainage valve has the advantage that the drainage valve can be automatically closed within preset time after the drainage valve is opened and used for drainage.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection technology, and in particular to a fire box with a delayed shut-off function for wastewater discharge from a foam fire extinguisher. Background Technology

[0002] After use, the foam box in a traditional fire extinguisher box usually needs to have its internal wastewater drained promptly. However, since the drainage process takes time, users often forget to close the valve while waiting for the drainage to complete. As a result, when used again, the water will not come out from the main valve but will flow directly out from the drain pipe. If the water is not drained completely, the accumulated liquid will cause corrosion at the valve location, which will shorten the valve's lifespan, reduce its function, and in severe cases, prevent the valve from opening, causing the drainage function to fail. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a fire extinguisher box with a delayed shut-off function for wastewater discharge from foam fire extinguishers. This box features automatic shut-off of the drain valve within a predetermined time after the wastewater is opened and drained.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A fire extinguisher box with a delayed shut-off function for wastewater discharge from foam fire extinguishers includes:

[0006] Box;

[0007] A three-way pipe, the first end of which is used to connect to a fire hydrant, and the second end of which is used to connect to a water outlet pipe;

[0008] A foam box, the outlet of which is connected to the water outlet pipe;

[0009] A delay valve is installed on the third end of the tee pipe, and the delay valve is used to close after a predetermined time has elapsed since the drainage was opened.

[0010] In the aforementioned fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers, the delayed valve is an angle flushing valve.

[0011] In the aforementioned fire box with delayed shut-off function for wastewater discharge from foam fire extinguishers, the first end of the tee pipe is connected to a fire hydrant via a first pipe. A first manual ball valve is installed on the first pipe. A rotating frame is rotatably mounted on the box body. The rotating frame can abut against the handle of the first manual ball valve. The rotating frame can drive the handle of the first manual ball valve to rotate, thereby opening the first manual ball valve.

[0012] In the aforementioned fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers, the outlet of the foam box is connected to the water outlet pipe via a second pipeline; a second manual ball valve is installed on the second pipeline, and a guide rod capable of displacement is mounted on the rotating frame, the guide rod being able to move between a first position range and a second position range; within the first position range, the guide rod can abut against the handle of the second manual ball valve, so that the rotating frame can drive the handle of the second manual ball valve to rotate and open the second manual ball valve; within the second position range, the guide rod and the handle of the second manual ball valve are misaligned.

[0013] In the aforementioned fire box with delayed shut-off function for wastewater discharge from foam fire extinguishers, the handle of the second manual ball valve is connected to the second pipeline via a tension spring, which is used to keep the handle of the second manual ball valve in a normally closed state.

[0014] The fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers also includes a limiting plate. One end of the limiting plate is connected to the rotating frame and swings up and down relative to the rotating frame. A limiting hole is provided on the limiting plate. A guide rod is slidably disposed at the top of the rotating frame and can move along the height direction. The guide rod passes through the limiting hole. A first compression spring is provided between the limiting plate and the upper surface of the rotating frame. The first compression spring causes the limiting plate to flip away from the rotating frame, so that the inner wall of the limiting hole abuts against the guide rod. The limiting plate can swing towards the rotating frame to release the limiting plate from restricting the guide rod.

[0015] In the aforementioned fire box with delayed shut-off function for wastewater discharge from foam fire extinguishers, the guide rod is connected to the rotating frame via a second compression spring.

[0016] Compared with the prior art, this application has the following advantages:

[0017] The delayed shutdown function ensures that wastewater is completely discharged within a predetermined time, avoiding unnecessary continuous discharge. The automatic control of the delayed valve reduces the need for manual intervention, simplifies operation, reduces maintenance difficulty, and prevents users from forgetting to close it. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram in this application;

[0019] Figure 2 This is a front view in this application;

[0020] Figure 3 This is a partially enlarged structural diagram of this application;

[0021] Figure 4 This is a schematic diagram of the guide rod after it has been pressed down in this application;

[0022] Figure 5 This is a structural schematic diagram of the position of the rotating frame in this application;

[0023] In the picture,

[0024] 2. Box body;

[0025] 3. T-connector; 31. First end; 32. Second end; 33. Third end;

[0026] 4. Foam box; 41. Second pipeline; 42. Second manual ball valve; 43. Tension spring;

[0027] 5. Delay valve;

[0028] 6. Water outlet pipe;

[0029] 7. First pipeline; 71. First manual ball valve;

[0030] 8. Rotating frame; 81. Limiting plate; 82. Guide rod; 83. First compression spring; 84. Second compression spring. 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 5 As shown, a fire extinguisher box with a delayed shut-off function for wastewater discharge from a foam fire extinguisher includes: a box body 2, a tee pipe 3, a foam box 4, and a delay valve 5. The first end 31 of the tee pipe 3 is used to connect to a fire hydrant, and the second end 32 of the tee pipe 3 is used to connect to a water outlet pipe 6. The outlet of the foam box 4 is connected to the water outlet pipe 6. The delay valve 5 is installed on the third end 33 of the tee pipe 3 and is used to close after a predetermined time has elapsed since the drainage was opened.

[0033] In this application, the fire hydrant box is connected to the fire hydrant via a T-connector 3. The fire hydrant supplies water to the first end 31 of the T-connector 3. The foam box 4 is connected to the outlet pipe 6. When the user opens the fire hydrant, the water flows into the T-connector 3 and then to the outlet pipe 6, where it mixes with the foam in the foam box 4 to form a foam mixture. The mixed foam is sprayed through the outlet pipe 6 for fire extinguishing. After the fire is extinguished, the remaining wastewater in the system needs to be drained. By opening the third end 33 of the T-connector 3, the delay valve 5 starts to drain the water. The delay valve 5 allows the wastewater to drain for a period of time. After the predetermined time is reached, the delay valve 5 automatically closes to prevent water from being discharged from the drain pipe if it is opened a second time.

[0034] The delayed shutdown function ensures that wastewater is completely discharged within a predetermined time, avoiding unnecessary continuous discharge. The automatic control of the delayed valve 5 reduces the need for manual intervention, simplifies operation, reduces maintenance difficulty, and prevents users from forgetting to close it.

[0035] Specifically, delay valve 5 is an angle flushing valve.

[0036] Specifically, the first end 31 of the three-way pipe 3 is connected to the fire hydrant through the first pipe 7. The first manual ball valve 71 is installed on the first pipe 7. A rotating frame 8 is rotatably installed on the housing 2. The rotating frame 8 can abut against the handle of the first manual ball valve 71. The rotating frame 8 can drive the handle of the first manual ball valve 71 to rotate so that the first manual ball valve 71 can be opened.

[0037] The first end 31 of the tee pipe 3 is connected to the fire hydrant through the first pipe 7. A first manual ball valve 71 is installed on the first pipe 7 to control the water inlet of the fire box. A rotating bracket 8 is provided on the box body 2, which can abut against the handle of the first manual ball valve 71, but is not triggered. When the fire box needs to be used, the rotating bracket 8 is rotated manually or by other linkage mechanisms to contact the handle of the first manual ball valve 71. The rotating bracket 8 pushes the handle to complete the rotation action, and the first manual ball valve 71 opens accordingly. Water in the fire hydrant enters the tee pipe 3 and flows to the outlet pipe 6. After use, the first manual ball valve 71 is manually closed.

[0038] The linkage design between the rotating frame 8 and the first manual ball valve 71 simplifies the operation process, eliminating the need for direct contact with the ball valve handle and improving ease of operation. The mechanical linkage design of the rotating frame 8 eliminates the need for complex electronic or hydraulic control, reducing the failure rate and maintenance costs.

[0039] Specifically, the outlet of the foam box 4 is connected to the water outlet pipe 6 through the second pipe 41; a second manual ball valve 42 is installed on the second pipe 41, and a guide rod 82 capable of displacement is installed on the rotating frame 8. The guide rod 82 can move between the first position range and the second position range; in the first position range, the guide rod 82 can abut against the handle of the second manual ball valve 42, so that the rotating frame 8 can drive the handle of the second manual ball valve 42 to rotate and open the second manual ball valve 42; in the second position range, the guide rod 82 and the handle of the second manual ball valve 42 are misaligned.

[0040] The outlet of foam box 4 is connected to water outlet pipe 6 through second pipe 41. A second manual ball valve 42 is installed on the second pipe 41 to control the flow of foam from foam box 4. A movable guide rod 82 is installed on the rotating frame 8. When the guide rod 82 is in the second position range, it is misaligned with the handle of the second manual ball valve 42. At this time, the second manual ball valve 42 is closed and foam cannot flow out. The rotating frame 8 starts to rotate, driving the guide rod 82 from the second position range to the first position range. When the guide rod 82 enters the first position range, the guide rod 82 abuts against the handle of the second manual ball valve 42. Through the force transmission of the guide rod 82, the handle is driven to rotate, and the second manual ball valve 42 is opened. The foam in foam box 4 enters water outlet pipe 6 through second pipe 41, mixes with water, and generates foam mixture, thus completing the fire extinguishing operation.

[0041] After the fire extinguishing operation is completed, the rotating frame 8 is reset, and the guide rod 82 returns from the first position interval to the second position interval, disengaging from the handle of the second manual ball valve 42; the handle of the second manual ball valve 42 is manually closed, and the connection between the foam box 4 and the water outlet pipe 6 is closed to prevent the remaining foam in the foam box 4 from continuing to flow out.

[0042] The displacement design of the guide rod 82 enables precise control of the second manual ball valve 42. By distinguishing between the first and second positions, it ensures that the foam release and closing operations are synchronized and reliable. The linkage mechanism between the rotating frame 8 and the guide rod 82 enables integrated operation, eliminating the need for users to operate multiple valves separately and simplifying the operation steps during fire extinguishing.

[0043] Specifically, the handle of the second manual ball valve 42 is connected to the second pipeline 41 via a tension spring 43, which is used to keep the handle of the second manual ball valve 42 in a normally closed state.

[0044] The tension spring 43 ensures that the second manual ball valve 42 is always closed when not in operation, avoiding foam leakage or waste due to accidental valve opening, thus improving the reliability of the system. The tension spring 43 design realizes the automatic reset function of the handle, so there is no need to manually close the valve after the fire extinguishing operation is completed, which improves the automation level of the system.

[0045] Specifically, it also includes a limiting piece 81, one end of which is connected to the rotating frame 8 and swings up and down relative to the rotating frame 8. A limiting hole is provided on the limiting piece 81. A guide rod 82 is slidably disposed at the top of the rotating frame 8. The guide rod 82 can move along the height direction and passes through the limiting hole. A first compression spring 83 is provided between the limiting piece 81 and the upper surface of the rotating frame 8. The first compression spring 83 causes the limiting piece 81 to flip in the opposite direction away from the rotating frame 8 so that the inner wall of the limiting hole abuts against the guide rod 82. The limiting piece 81 can swing towards the rotating frame 8 so as to release the limiting piece 81 from limiting the guide rod 82.

[0046] One end of the limiting plate 81 is connected to the rotating frame 8 and can swing up and down relative to the rotating frame 8. The first compression spring 83 is disposed between the limiting plate 81 and the upper surface of the rotating frame 8, providing elastic force to make the limiting plate 81 flip away from the rotating frame 8. The guide rod 82 is slidably disposed at the top of the rotating frame 8 and passes through the limiting hole on the limiting plate 81. In the initial state, the inner wall of the limiting plate 81 abuts against the guide rod 82 by the action of the compression spring, restricting its free sliding. When operation is required, the limiting plate 81 is pushed by an external force to make it swing towards the rotating frame 8. This action makes the limiting plate 81 disengage from the guide rod 82, releasing the restriction on the guide rod 82. The guide rod 82 can slide freely in the height direction. After the operation is completed, the external force is released, and the first compression spring 83 pushes the limiting plate 81 back to the initial position, abutting against the guide rod 82 again, restoring the restriction on the guide rod 82.

[0047] Of course, since the limiting piece 81 abuts against and limits the guide rod 82, when the user applies a large external force to the guide rod 82, the guide rod 82 can be pressed down. During the downward movement of the guide rod 82, the limiting piece 81 can be briefly flipped downward based on friction, thereby releasing the limitation on the guide rod 82.

[0048] Specifically, the guide rod 82 is connected to the rotating frame 8 via the second compression spring 84.

[0049] When the user installs the limiting piece 81 and releases the limiting of the guide rod 82, the compressed second compression spring 84 can reset the guide rod 82.

[0050] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture, as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0051] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0052] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0053] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A fire extinguisher box with a delayed shut-off function for wastewater discharge from foam fire extinguishers, characterized in that, include: Box (2); The first end (31) of the three-way pipe (3) is used to connect to the fire hydrant, and the second end (32) of the three-way pipe (3) is used to connect to the water outlet pipe (6). Foam box (4), the outlet of which is connected to the water outlet pipe (6); A delay valve (5) is installed on the third end (33) of the three-way pipe (3) and is used to close after a predetermined time has elapsed since the drainage was opened.

2. The fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers according to claim 1, characterized in that, The delay valve (5) is an angle flushing valve.

3. The fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers according to claim 1, characterized in that, The first end (31) of the three-way pipe (3) is connected to the fire hydrant through the first pipe (7). A first manual ball valve (71) is installed on the first pipe (7). A rotating frame (8) is rotatably arranged on the box (2). The rotating frame (8) can abut against the handle of the first manual ball valve (71). The rotating frame (8) can drive the handle of the first manual ball valve (71) to rotate so that the first manual ball valve (71) can be opened.

4. The fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers according to claim 3, characterized in that, The outlet of the foam box (4) is connected to the water outlet pipe (6) through the second pipe (41); a second manual ball valve (42) is installed on the second pipe (41), and a guide rod (82) capable of displacement is installed on the rotating frame (8). The guide rod (82) can move between a first position range and a second position range; in the first position range, the guide rod (82) can abut against the handle of the second manual ball valve (42) so that the rotating frame (8) can drive the handle of the second manual ball valve (42) to rotate and open the second manual ball valve (42); in the second position range, the guide rod (82) is misaligned with the handle of the second manual ball valve (42).

5. The fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers according to claim 4, characterized in that, The handle of the second manual ball valve (42) is connected to the second pipeline (41) via a tension spring (43), which is used to keep the handle of the second manual ball valve (42) in a normally closed state.

6. The fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers according to claim 4, characterized in that, It also includes a limiting piece (81), one end of which is connected to the rotating frame (8) and swings up and down relative to the rotating frame (8). A limiting hole is provided on the limiting piece (81). The guide rod (82) is slidably disposed at the top of the rotating frame (8). The guide rod (82) can move along the height direction. The guide rod (82) passes through the limiting hole. A first compression spring (83) is provided between the limiting piece (81) and the upper surface of the rotating frame (8). The first compression spring (83) causes the limiting piece (81) to flip in the opposite direction away from the rotating frame (8) so that the inner wall of the limiting hole abuts against the guide rod (82). The limiting piece (81) can swing towards the rotating frame (8) so as to release the limiting piece (81) from the guide rod (82).

7. The fire extinguisher box with delayed shut-off function for wastewater discharge from foam fire extinguishers according to claim 6, characterized in that, The guide rod (82) is connected to the rotating frame (8) via a second compression spring (84).

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