Fire door resistance to water spray impact tester

Abstract

The utility model relates to fire fighting equipment detection technical field discloses a kind of fire door anti-spraying water impact tester, including fire hose, the inside left side of fire hose is fixedly connected with round, the inside fixedly connected with cylinder in round, the outside sliding connection of cylinder has slip ring, the outside right side of slip ring is fixedly connected with spring a.In the utility model, first, slip ring is pushed back under the action of water flow pressure and is slid on cylinder to round inside, let water flow pass smoothly, when water flow appears backflow trend, slip ring will be quickly reset under the action of spring a elasticity, form tight seal, to block reverse water flow, simultaneously, when rotating handle on top layer moves down, water flow resistance increases by thread transmission to drive pressing plate to move down, inside flow cross-sectional area reduces at this time, water flow resistance increases;Conversely, the extrusion force of water decreases, water pressure reduces, it is convenient to adjust and change hose pass diameter, promote the progress of experiment.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment testing technology, and in particular to a fire door water jet impact tester. Background Technology

[0002] A fire door water jet impact tester is a specialized device for testing the performance of fire doors under simulated fire water jet impact scenarios. Through a specific water system, it simulates parameters such as the pressure of water jets from fire hoses in actual fires, subjecting the fire door to water jet impact. Its core purpose is to verify whether the fire door can maintain its structural integrity and necessary sealing when subjected to water jet impact, thereby determining whether the fire door can continuously prevent the spread of fire and smoke during fire fighting, providing a basis for the quality testing and performance evaluation of fire doors.

[0003] In existing technologies, some devices do not prevent backflow of water in the pipes, which can easily damage the equipment and cause distortion of test data. Moreover, unstable water pressure can cause the impact strength of the fire door to become uncontrollable, making it impossible to simulate the stable water flow impact in real fire extinguishing scenarios. This results in a deviation between the test results and the actual performance, rendering the test meaningless. Utility Model Content

[0004] The present invention proposes a fire door water jet impact tester, which aims to improve the problem that some devices in the prior art do not prevent the backflow of water in the water pipe, making the equipment easy to be damaged and causing the test data to be distorted.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fire door water jet impact tester includes a fire hose. A circular frame is fixedly connected to the left side of the fire hose. A cylinder is fixedly connected to the inside of the circular frame. A slip ring is slidably connected to the outside of the cylinder. A spring a is fixedly connected to the right side of the slip ring. The outside of the slip ring is slidably connected to the inside of the fire hose. The other end of the spring a is fixedly connected to the inside of the circular frame.

[0007] As a further description of the above technical solution:

[0008] The fire hose has a top layer fixedly connected to its top right side. A handle is threadedly connected to the inside of the top layer. A pressure plate is fixedly connected to the outside of the handle. A spring b is fixedly connected to the bottom of the pressure plate. A bottom post is fixedly connected to the bottom of the spring b. A spring c is fixedly connected to the outside of the bottom post. A pressure layer is fixedly connected to the inside of the top layer. The handle is sleeved inside the spring b. The spring b is located inside the top layer. The pressure plate is located inside the top layer. The bottom post is slidably connected to the inside of the fire hose. The bottom post is slidably connected to the inside of the pressure layer.

[0009] As a further description of the above technical solution:

[0010] An outer plug is fixedly connected to the outer right side of the fire hose, and an inner plug is threadedly connected to the inner right side of the outer plug. A hose a is fixedly connected to the outer right side of the inner plug. A retaining ring is threadedly connected to the outer right side of the outer plug, and the inner right side of the retaining ring is threadedly connected to the outer left side of the inner plug.

[0011] As a further description of the above technical solution:

[0012] A sensor is fixedly connected to the outside of the water hose a. A testing instrument is fixedly connected to the right side of the sensor. A display screen is fixedly connected to the right side of the testing instrument. Multiple buttons are fixedly connected to the right side of the testing instrument. A bracket is fixedly connected to the bottom of the testing instrument. The bottom of the sensor is fixedly connected to the top of the bracket. The bottom of the display screen is located on top of the multiple buttons.

[0013] As a further description of the above technical solution:

[0014] A water outlet is fixedly connected to the outer left side of the fire hose, a water pump is fixedly connected to the outer side of the water outlet, and a water tank is fixedly connected to the outer side of the other end of the water outlet.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, firstly, water in the tank flows from the outlet into the fire hose under the drive of the water pump, flowing to the front of the slip ring. Under the pressure of the water flow, the slip ring is pushed backward and slides on the cylinder into the cylinder, allowing the water to flow smoothly. When the water flow shows a tendency to flow backward, the slip ring will quickly return to its original position under the elastic force of spring a, tightly fitting the inside of the fire hose to form a tight seal, thereby blocking the reverse water flow and preventing water in the fire hose from flowing back into the water pump and water tank. This protects the water pump from water hammer impact damage and maintains... The water pressure inside the fire hose is stable. At the same time, when the handle on the top layer is turned and moved downwards, the pressure plate moves downwards through the threaded transmission, which compresses spring b. This causes the bottom of the handle to push the top of the base column, pressing down on the pressure layer and squeezing the base column downwards. At this time, the internal flow cross-sectional area decreases, the water flow resistance increases, and the water pressure rises accordingly. Conversely, when the handle is turned upwards, the pressure plate moves upwards, the elastic force of springs b and c is released, the squeezing force of the base column on the water decreases, the flow cross-sectional area is restored, and the water pressure decreases. This makes it easy to adjust and change the hose diameter, thus advancing the experiment.

[0017] 2. In this utility model, firstly, the outer bolt is manually rotated outside the inner bolt. A rubber sealing gasket, smooth and elastic, is located between their contact surfaces. When the outer and inner bolts are tightened, the sealing gasket is evenly compressed, filling the tiny gaps between them and forming a sealing barrier. Simultaneously, the outer and inner bolts are threaded, further enhancing the seal through interlocking and reducing the chance of water leakage from the threaded gaps. Then, the inner side of the retaining ring is manually threaded onto the outer and inner bolts respectively. Rotating the retaining ring in the forward direction further compresses the sealing gasket, improving the sealing effect. The retaining ring has sufficient rigidity to maintain a stable preload under water pressure, preventing thread loosening and sealing failure due to water flow impact. Furthermore, the sealant at the threaded connection between the retaining ring and the outer and inner bolts cures to form an elastic sealing film, filling the tiny gaps between the threads and forming a final layer of sealing protection, extending the service life of the fire hose structure. This design also facilitates the replacement of fire hoses, return valves, and regulating valves, ensuring the progress of the experiment. Attached Figure Description

[0018] Figure 1 This is an elevation view of the water tank of a fire door water jet impact tester proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the slip ring structure of a fire door water jet impact tester proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the laminated structure of a fire door water jet impact resistance tester proposed in this utility model;

[0021] Figure 4This is a schematic diagram of the retaining ring structure of a fire door water jet impact tester proposed in this utility model.

[0022] Legend:

[0023] 1. Fire hose; 2. Circular sleeve; 3. Column; 4. Slip ring; 5. Spring a; 6. Top layer; 7. Handle; 8. Spring b; 9. Base column; 10. Spring c; 11. Layering; 12. Outer bolt; 13. Inner bolt; 14. Clamping ring; 15. Hose a; 16. Sensor; 17. Testing instrument; 18. Display screen; 19. Button; 20. Bracket; 21. Outlet; 22. Water pump; 23. Water tank; 24. Pressure plate. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1 to 3 This utility model provides an embodiment of a fire door water jet impact tester, including a fire hose 1, which is flexible and has excellent water pressure resistance, ensuring that it is not easy to break under high water pressure. A cylindrical arm 2 is fixedly connected to the inside left side of the fire hose 1 to facilitate the stabilization of the cylindrical arm 3. The cylindrical arm 2 is fixedly connected to the inside of the cylindrical arm 3, which has good structural strength and durability. A slip ring 4 is slidably connected to the outside of the cylindrical arm 3, which has the characteristics of smooth sliding and not easy wear. A spring a5 is fixedly connected to the outside right side of the slip ring 4, which has good elastic restoring force and can effectively control the movement of the slip ring 4. The outside of the slip ring 4 is slidably connected to the inside of the fire hose 1, and the other end of the spring a5 is fixedly connected to the inside of the cylindrical arm 2.

[0026] The top right side of the fire hose 1 is fixedly connected to a top layer 6, which is hollow inside to accommodate related components. The top layer 6 has a handle 7 threadedly connected inside, and its top is covered with rubber to ensure that the operator can firmly grip it during the test and to facilitate operation of the bottom structure. The handle 7 is fixedly connected to a pressure plate 24, which has strong impact resistance. The bottom of the pressure plate 24 is fixedly connected to a spring b8, which has good elasticity and can provide continuous pressure during the test. The bottom of the spring b8 is fixedly connected to a base post 9, which provides strong support. The bottom of the base post 9 is fixedly connected to a spring c10, which can further increase the stability during the impact test. The top layer 6 is fixedly connected to a pressure layer 11, which is used to provide more precise pressure control and ensure the stability and accuracy during the test. The handle 7 is sleeved inside the spring b8, and the spring b8 is set inside the top layer 6. The pressure plate 24 is set inside the top layer 6. The bottom post 9 is slidably connected to the inside of the fire hose 1 and the bottom post 9 is slidably connected to the inside of the pressure layer 11, ensuring the tight fit of the entire system and a good operating experience.

[0027] Reference Figure 1 and Figure 4 The fire hose 1 is fixedly connected to the outer right side with an outer bolt 12 to ensure that it is not easy to rust after long-term use. The inner right side of the outer bolt 12 is connected to an inner bolt 13 with a good locking effect. The outer right side of the inner bolt 13 is fixedly connected to a hose a15 with strong water pressure resistance and tensile strength. The outer right side of the outer bolt 12 is connected to a retaining ring 14, which can firmly fix the entire connection system and prevent loosening under high water pressure. The inner right side of the retaining ring 14 is connected to the outer left side of the inner bolt 13 to ensure the stability and sealing of the connection.

[0028] A sensor 16 is fixedly connected to the outside of the water hose a15, which has high-precision water pressure and water flow monitoring functions, and can monitor water flow changes in real time to ensure the accuracy of the test. A tester 17 is fixedly connected to the outside right side of the sensor 16, and a display screen 18 is fixedly connected to the outside right side of the tester 17 to display test data in real time. Multiple buttons 19 are fixedly connected to the outside right side of the tester 17 for convenient operation and settings by the operator. A bracket 20 is fixedly connected to the bottom of the tester 17 to ensure the stability of the instrument. The bottom of the sensor 16 is fixedly connected to the top of the bracket 20, and the bottom of the display screen 18 is located on top of the multiple buttons 19.

[0029] The fire hose 1 has an outlet 21 fixedly connected to the outside left side to facilitate water output. A water pump 22 is fixedly connected to the outside of the outlet 21 to provide stable water pressure and high water pressure output capacity, which can simulate water jet impact of different intensities. A water tank 23 is fixedly connected to the other end of the outlet 21. It has good corrosion resistance and can store a large amount of test water to ensure sufficient water supply during the test and avoid test interruption.

[0030] Compared with some existing devices, the above-mentioned devices prevent backflow of water in the pipes, extend the life of the equipment, avoid distortion of test data, maintain stable water pressure, facilitate the simulation of stable water flow impact in real fire extinguishing scenarios, and improve the significance of testing.

[0031] Working principle: First, water in the water tank 23, driven by the water pump 22, flows from the outlet 21 into the fire hose 1 and into the front of the slip ring 4. Under the pressure of the water flow, the slip ring 4 is pushed backward and slides on the cylinder 3 into the cylinder 2, allowing the water to flow smoothly. When the water flow shows a tendency to flow backward, the slip ring 4 will quickly return to its original position under the elastic force of the spring a5, tightly fitting the inside of the fire hose 1 to form a tight seal, thereby blocking the reverse flow of water and preventing the water in the fire hose 1 from flowing back to the water pump 22 and the water tank 23. This protects the water pump 22 from water hammer impact damage and maintains the fire hose's operation. The water pressure inside the waterproof belt 1 is stable. At the same time, when the handle 7 on the top layer 6 is rotated and moved downwards, the pressure plate 24 is moved downwards through the threaded transmission, which compresses the spring b8. This causes the bottom of the handle 7 to push the top of the bottom column 9 downwards by pressing the pressure layer 11. At this time, the internal flow cross-sectional area decreases, the water flow resistance increases, and the water pressure rises accordingly. Conversely, when the handle 7 is rotated upwards, the pressure plate 24 moves upwards, the elastic force of the springs b8 and c10 is released, the squeezing force of the bottom column 9 on the water decreases, the flow cross-sectional area is restored, and the water pressure decreases. This makes it easy to adjust and change the diameter of the water belt and promote the progress of the experiment.

[0032] First, manually rotate the outer bolt 12 outside the inner bolt 13. A rubber sealing gasket exists between their mating surfaces; its surface is smooth and has a certain degree of elasticity. When the outer bolt 12 and inner bolt 13 are tightened, the sealing gasket is evenly compressed, filling the tiny gaps between them and forming a sealing barrier. Simultaneously, the outer bolt 12 and inner bolt 13 are threaded together, further enhancing the seal through mutual interlocking and reducing the chance of water leakage from the threaded gaps. Next, manually connect the inner side of the retaining ring 14 to the threads of both the outer bolt 12 and inner bolt 13. When the retaining ring 14 is rotated in the forward direction… This will further compress the sealing gasket and improve the sealing effect. The retaining ring 14 has sufficient rigidity to maintain a stable preload under water pressure, avoiding sealing failure due to loosening of the threads caused by water flow impact. In addition, the threaded connection between the retaining ring 14 and the outer bolt 12 and inner bolt 13 has a sealant that cures to form an elastic sealing film, filling the tiny gaps between the threads and forming a final layer of sealing protection, extending the service life of the fire hose 1 structure. At the same time, this design facilitates the replacement of the fire hose 1, the return valve, and the regulating valve, ensuring the progress of the experiment.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 fire door water jet impact tester, comprising a fire hose (1), characterized in that: A round spool (2) is fixedly connected to the inside left side of the fire hose (1), a cylinder (3) is fixedly connected to the inside of the round spool (2), a slip ring (4) is slidably connected to the outside of the cylinder (3), and a spring a (5) is fixedly connected to the outside right side of the slip ring (4).

2. The fire door water jet impact tester according to claim 1, characterized in that: The slip ring (4) is externally slidably connected to the inside of the fire hose (1), and the other end of the spring a (5) is fixedly connected to the inside of the round hole (2).

3. The fire door water jet impact tester according to claim 2, characterized in that: The top right side of the fire hose (1) is fixedly connected to a top layer (6), the top layer (6) is internally threaded with a handle (7), the handle (7) is externally fixedly connected to a pressure plate (24), the bottom of the pressure plate (24) is fixedly connected to a spring b (8), the bottom of the spring b (8) is fixedly connected to a bottom post (9), the bottom of the bottom post (9) is externally fixedly connected to a spring c (10), and the top layer (6) is internally fixedly connected to a pressure layer (11).

4. The fire door water jet impact tester according to claim 3, characterized in that: The handle (7) is sleeved inside the spring b (8), the spring b (8) is disposed inside the top layer (6), the pressure plate (24) is disposed inside the top layer (6), the bottom column (9) is slidably connected to the fire hose (1) inside, and the bottom column (9) is slidably connected to the pressure layer (11) inside.

5. The fire door water jet impact tester according to claim 4, characterized in that: The fire hose (1) is fixedly connected to an outer bolt (12) on the outer right side, and an inner bolt (13) is threadedly connected to the inner right side of the outer bolt (12). The fire hose a (15) is fixedly connected to the outer right side of the inner bolt (13). A retaining ring (14) is threadedly connected to the outer right side of the outer bolt (12), and the inner right side of the retaining ring (14) is threadedly connected to the outer left side of the inner bolt (13).

6. The fire door water jet impact tester according to claim 5, characterized in that: A sensor (16) is fixedly connected to the outside of the water hose a (15). A tester (17) is fixedly connected to the right side of the sensor (16). A display screen (18) is fixedly connected to the right side of the tester (17). Multiple buttons (19) are fixedly connected to the right side of the tester (17). A bracket (20) is fixedly connected to the bottom of the tester (17).

7. A fire door water jet impact tester according to claim 6, characterized in that: The bottom of the sensor (16) is fixedly connected to the top of the bracket (20), and the bottom of the display screen (18) is located on top of the plurality of buttons (19).

8. The fire door water jet impact tester according to claim 7, characterized in that: A water outlet (21) is fixedly connected to the outside left side of the fire hose (1), a water pump (22) is fixedly connected to the outside of the water outlet (21), and a water tank (23) is fixedly connected to the other end of the water outlet (21).

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