Spraying device for subway fire fighting

Abstract

The utility model belongs to the technical field of fire fighting equipment, and discloses a subway fire fighting spraying device which comprises a water pump, a water outlet pipe is arranged at the output end of the water pump, a connecting water pipe is arranged on the right side of the water outlet pipe, a connecting ring is arranged on the surface of the connecting water pipe, and a spraying head is inserted into the top end of the connecting ring. An inserting block enters a second fixing groove again, when the bottom end of a movable block makes contact with the top end of a mounting plate, a square block penetrates through a first inserting hole, then a rotating block can be rotated to enable the square block and the first inserting hole to be staggered, then the movable block can be limited, then the spraying head can be fixed through the inserting block, and the spraying head can be conveniently fixed. And finally, a square block is inserted into an insertion hole I, and then the square block is staggered, so that the spraying head can be disassembled and assembled under the condition that a tool is not used, the convenience of replacing the spraying head is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting equipment, and specifically relates to a sprinkler device for subway fire-fighting. Background Art

[0002] The sprinkler device for subway fire-fighting belongs to a kind of fire-fighting sprinkler system. The fire-fighting sprinkler system is widely used in civil buildings, public places, factory workshops, warehouses, and subways. The subway fire-fighting sprinkler device can be quickly started through automatic control during a fire, spray water for fire extinguishing, and effectively reduce the losses caused by the fire.

[0003] At present, the traditional sprinkler device for subway fire-fighting continuously provides the water volume required for fire extinguishing through the stored water in the fire-fighting water tank or fire-fighting pool. These water sources are pressurized by a water pump and then transported to the pipeline network covering various areas of the subway, maintaining a certain pressure and ready to respond to sudden fires at any time. When a fire occurs, the glass bulb or fusible alloy in the sprinkler head will break or melt, causing the sprinkler head to open. Then, the pressurized water in the pipeline will quickly spray out through the sprinkler head, forming a fine water mist or water flow covering the fire source. Since the design of the sprinkler head is disposable, after each use, whether it is a full or partial spray, the sprinkler head needs to be replaced to ensure the integrity and future reliability of the system. This replacement process often requires professional technicians to carry specific tools (such as wrenches, pipe pliers, etc.). Due to the special subway environment, such as narrow space, insufficient light, and limited ventilation conditions, technicians often face many restrictions during operation, which not only increases the operation difficulty but also may affect work efficiency. Content of the Utility Model

[0004] To solve the problems raised in the above background art, the utility model provides a sprinkler device for subway fire-fighting.

[0005] To achieve the above object, the utility model provides the following technical solution: A sprinkler device for subway fire-fighting, including a water pump, an outlet pipe is arranged at the output end of the water pump, a connecting pipe is arranged on the right side of the outlet pipe, a connecting ring is arranged on the surface of the connecting pipe, and a sprinkler head is inserted into the inside of the top of the connecting ring;

[0006] A fixing mechanism is provided at the rear end of the surface of the connecting ring. The fixing mechanism includes a mounting plate which is fixedly connected to the rear end of the surface of the connecting ring. A first jack is formed on the surface of the mounting plate. Connecting shells are fixedly installed on both sides of the surface of the connecting ring. Connecting blocks located inside the connecting shells are fixedly installed on both sides of the surface of the spray head. Fixing grooves two are formed on the surfaces of the connecting shell and the connecting block. Fixing plates are fixedly installed at the left and right ends of the mounting plate. A support plate is fixedly installed at the top end of the fixing plate. A fixing cylinder is fixedly installed at the top end inside the support plate. A spring located inside the fixing cylinder is fixedly installed at the top end inside the support plate. A limiting block located inside the fixing cylinder is fixedly installed at the bottom end of the spring. A first connecting rod located outside the fixing cylinder is fixedly installed at the bottom end of the limiting block. A moving block is fixedly installed at the bottom end of the first connecting rod. A rotating rod located inside the first jack is rotatably connected inside the moving block. A square block is arranged at the bottom end of the surface of the rotating rod. A rotating block located at the top end of the moving block is fixedly installed at the top end of the rotating rod. A second connecting rod is fixedly installed at the front end of the moving block. An inserting block located inside the fixing groove two is fixedly installed at the bottom end of the second connecting rod.

[0007] Preferably, a limiting ring is formed inside the moving block, and a rotating groove located on the surface of the rotating rod is rotatably connected inside the limiting ring.

[0008] Preferably, an annular plate is fixedly installed on the surface of the connecting ring. Support rods are fixedly installed on both sides of the top end of the annular plate. A protective plate located at the top end of the spray head is fixedly installed at the top end of the support rod.

[0009] Preferably, bumps are arranged on the surface of the rotating block, and the bumps are of a rough design.

[0010] Preferably, the limiting block is of a circular design, and the surface of the limiting block fits the inner wall of the fixing cylinder. The size of the limiting block is larger than that of the first connecting rod.

[0011] Preferably, the fixing groove two on the surface of the connecting block is of a square design and is a through-hole design.

[0012] Preferably, the number of the springs, the limiting blocks and the first connecting rods is two, and they are symmetrically designed longitudinally about the center of the moving block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, an unused spray head is placed inside a connecting ring, and a connecting shell is inserted into a connecting block. Then, the square block can be aligned with the first jack again, and the moving block is pushed downward. When the moving block descends, the spring will be stretched again. Then, the rotating rod and the square block will enter the inside of the first jack, and the inserting block will enter the inside of the second fixing groove again. When the bottom end of the moving block contacts the top end of the mounting plate, the square block will pass through the first jack, and then the rotating block can be rotated to cause a dislocation between the square block and the first jack, thereby limiting the moving block. Then, the inserting block can fix the spray head. Finally, by inserting the square block into the first jack and then causing a dislocation, the spray head can be disassembled and installed without using tools, thus increasing the convenience of replacing the spray head and improving work efficiency. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic rear view device diagram of the present utility model;

[0017] Figure 3 is a schematic cross-sectional view of the connecting ring of the present utility model;

[0018] Figure 4 is a schematic cross-sectional view of the moving block of the present utility model;

[0019] Figure 5 is a schematic diagram showing the first jack of the present utility model;

[0020] Figure 6 In the present utility model Figure 3 is an enlarged schematic diagram at position A.

[0021] In the figure: 1, water pump; 2, water outlet pipe; 3, connecting water pipe; 4, connecting ring; 5, spray head; 6, connecting shell; 7, connecting block; 8, mounting plate; 9, fixing plate; 10, support plate; 11, fixing cylinder; 12, spring; 13, limiting block; 14, connecting rod one; 15, moving block; 16, rotating rod; 17, square block; 18, rotating block; 19, first jack; 20, connecting rod two; 21, inserting block; 22, second fixing groove; 23, rotating groove; 24, circular ring plate; 25, support rod; 26, protection plate; 27, limiting ring. Detailed Embodiment

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 6 shown, the present utility model provides a sprinkler device for subway fire protection, including a water pump 1. An outlet pipe 2 is arranged at the output end of the water pump 1. A connecting pipe 3 is arranged on the right side of the outlet pipe 2. A connecting ring 4 is arranged on the surface of the connecting pipe 3. A sprinkler head 5 is inserted into the top end of the connecting ring 4.

[0024] A fixing mechanism is arranged at the rear end of the surface of the connecting ring 4. The fixing mechanism includes a mounting plate 8. The mounting plate 8 is fixedly connected to the rear end of the surface of the connecting ring 4. A first jack 19 is formed on the surface of the mounting plate 8. Connecting shells 6 are fixedly installed on both sides of the surface of the connecting ring 4. Connecting blocks 7 located inside the connecting shells 6 are fixedly installed on both sides of the surface of the sprinkler head 5. Fixing grooves two 22 are formed on the surfaces of the connecting shells 6 and the connecting blocks 7. Fixing plates 9 are fixedly installed at the left and right ends of the mounting plate 8. A support plate 10 is fixedly installed at the top end of the fixing plate 9. A fixing cylinder 11 is fixedly installed at the top end inside the support plate 10. A spring 12 located inside the fixing cylinder 11 is fixedly installed at the top end inside the support plate 10. A limiting block 13 located inside the fixing cylinder 11 is fixedly installed at the bottom end of the spring 12. A first connecting rod 14 located outside the fixing cylinder 11 is fixedly installed at the bottom end of the limiting block 13. A moving block 15 is fixedly installed at the bottom end of the first connecting rod 14. A rotating rod 16 located inside the first jack 19 is rotatably connected inside the moving block 15. A square block 17 is arranged at the bottom end of the surface of the rotating rod 16. A rotating block 18 located at the top end of the moving block 15 is fixedly installed at the top end of the rotating rod 16. A second connecting rod 20 is fixedly installed at the front end of the moving block 15. An inserting block 21 located inside the fixing groove two 22 is fixedly installed at the bottom end of the second connecting rod 20.

[0025] Adopting the above scheme: By an operator driving the water pump 1 to extract water source, then the water will enter the inside of the outlet pipe 2 and the connecting pipe 3, making the inside of the connecting pipe 3 filled with pressurized water source. When a fire breaks out in the subway, the temperature around the fire source will rise rapidly. When the temperature reaches the set action temperature of the sprinkler head 5, the glass bulb or fusible alloy inside the sprinkler head 5 will break or melt, causing the sprinkler head 5 to open. The pressurized water in the connecting pipe 3 will quickly spray out through the sprinkler head 5, forming a fine water mist or water flow covering the fire source. At the same time when the sprinkler head 5 opens, the water flow indicator in the system will detect the flow of water and send a signal to the fire control room.

[0026] After the fire is extinguished, the sprinkler head 5 needs to be replaced. At this time, the rotating block 18 needs to be rotated. Then, the rotating block 18 will drive the rotating rod 16 and the square block 17 to rotate, and then align the square block 17 with the first jack 19. After alignment, the limit on the moving block 15 will be cancelled. Then, the stretched spring 12 will pull the limit block 13 and the first connecting rod 14. Then, the first connecting rod 14 will pull the moving block 15 upward. The moving block 15 will drive the rotating rod 16 and the square block 17 away from the inside of the first jack 19, and the moving block 15 will drive the second connecting rod 20 and the insertion block 21 away from the inside of the second fixing groove 22, thereby cancelling the limit on the sprinkler head 5. Then, the used sprinkler head 5 can be taken out from the inside of the connecting ring 4, and the unused sprinkler head 5 can be inserted into the inside of the connecting ring 4. Then, the connecting block 7 can enter the inside of the connecting shell 6 again. Then, the square block 17 can be aligned with the first jack 19, and the moving block 15 can be pushed downward. Then, the rotating rod 16 and the square block 17 can enter the inside of the first jack 19 again. Then, the rotating rod 16 will drive the moving block 15 downward. When the moving block 15 moves downward, the spring 12 will be stretched. Then, the moving block 15 will also drive the second connecting rod 20 and the insertion block 21 downward, and the insertion block 21 will enter the inside of the second fixing groove 22 again. Then, when the bottom end of the moving block 15 contacts the top end of the mounting plate 8, the square block 17 will pass through the inside of the first jack 19. Then, the rotating rod 16 and the square block 17 can be rotated through the rotating block 18, and then the square block 17 and the first jack 19 will be misaligned, thereby fixing the moving block 15. The moving block 15 can fix the insertion block 21 in the second fixing groove 22, thereby fixing the sprinkler head 5. After the fixing is completed, the sprinkler head 5 can work again.

[0027] As Figure 2 and Figure 5 shown, a limit ring 27 is provided inside the moving block 15. A rotating groove 23 located on the surface of the rotating rod 16 is rotatably connected inside the limit ring 27. A circular ring plate 24 is fixedly installed on the surface of the connecting ring 4. Two support rods 25 are fixedly installed on both sides of the top end of the circular ring plate 24. A protective plate 26 located at the top end of the sprinkler head 5 is fixedly installed at the top end of the support rod 25.

[0028] With the above solution: Through the design of the limit ring 27 and the rotating groove 23, when the rotating rod 16 rotates, the rotating rod 16 will drive the rotating groove 23 to rotate. Since the surface of the rotating groove 23 fits with the inner wall of the limit ring 27, and then through the cooperation between the rotating block 18 and the rotating groove 23, the rotating rod 16 can be limited. Through the design of the circular ring plate 24, the support rods 25 and the protective plate 26, when the sprinkler head 5 is working normally, since the protective plate 26 is arranged at the top end of the sprinkler head 5, the sprinkler head 5 can be protected, avoiding the stones inside the subway tunnel from falling onto the surface of the sprinkler head 5 and causing damage to the sprinkler head 5.

[0029] As Figure 4 and Figure 5 shown, the surface of the rotating block 18 is provided with bumps, and the bumps are designed to be rough. The limiting block 13 is circularly designed, and the surface of the limiting block 13 fits and fixes the inner wall of the fixed cylinder 11. The size of the limiting block 13 is larger than that of the first connecting rod 14.

[0030] Adopting the above solution: Through the design of the rotating block 18, since the surface of the rotating block 18 is provided with bumps and is rough, the friction between the rotating block 18 and the palm can be increased, thereby facilitating the operator to rotate the rotating block 18. Through the design of the limiting block 13, since the surface of the limiting block 13 fits the inner wall of the fixed cylinder 11, the limiting block 13 can move smoothly, and the size of the limiting block 13 is larger than that of the first connecting rod 14, thereby restricting the movement of the first connecting rod 14 and preventing the first connecting rod 14 from moving out of the inside of the fixed cylinder 11.

[0031] As Figure 4 and Figure 6 shown, the second fixing groove 22 on the surface of the connecting block 7 is square and is a through-hole design. The number of the springs 12, the limiting blocks 13 and the first connecting rods 14 is two, and they are longitudinally symmetrically designed about the center of the moving block 15.

[0032] Adopting the above solution: Through the design of the second fixing groove 22, since the second fixing groove 22 on the surface of the connecting block 7 is a through-hole design, when the inserting block 21 enters the inside of the second fixing groove 22, the inserting block 21 can pass through the second fixing groove 22 on the surface of the connecting block 7, thereby increasing the fixing effect on the spray head 5. Through the design of the springs 12, the limiting blocks 13 and the first connecting rods 14, since the springs 12, the limiting blocks 13 and the first connecting rods 14 are symmetrically designed, while limiting the moving block 15, the moving block 15 can move smoothly.

[0033] The working principle and usage process of the present utility model:

[0034] First, the operator can drive the water pump 1 to extract water, and then make the water enter the connecting water pipe 3. When a fire breaks out in the subway, the temperature around the fire source will rise rapidly. When the temperature reaches the set action temperature of the spray head 5, the glass bulb or fusible alloy in the spray head 5 will break or melt, and the pressurized water in the connecting water pipe 3 will quickly spray out through the spray head 5, forming a fine water mist or water flow covering the fire source. At the same time as the spray head 5 is opened, the water flow indicator in the system will detect the flow of water and send a signal to the fire control room;

[0035] After the fire source is extinguished and the sprinkler head 5 needs to be replaced, the rotating block 18 can be rotated to align the square block 17 with the first jack 19, and then the movement block 15 needs to be limited. Then, the stretched spring 12 will pull the limit block 13, the first connecting rod 14 and the movement block 15 upward. Then, the rotating rod 16 and the square block 17 will move away from the inside of the first jack 19, and the second connecting rod 20 will drive the plug 21 to move away from the inside of the second fixing groove 22. Then, the sprinkler head 5 can be taken out. Then, the unused sprinkler head 5 is placed inside the connecting ring 4, and the connecting shell 6 is inserted into the inside of the connecting block 7. Then, the square block 17 can be aligned with the first jack 19 again, and the movement block 15 is pushed downward. When the movement block 15 descends, the spring 12 will be stretched again. Then, the rotating rod 16 and the square block 17 will enter the inside of the first jack 19, and the plug 21 will enter the inside of the second fixing groove 22 again. When the bottom end of the movement block 15 contacts the top end of the mounting plate 8, the square block 17 will pass through the first jack 19. Then, the rotating block 18 can be rotated to cause a dislocation between the square block 17 and the first jack 19, and then the movement block 15 can be limited. Then, the plug 21 can fix the sprinkler head 5. After the fixing is completed, the sprinkler head 5 can continue to work, and finally the operation process is completed.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A subway fire sprinkler device, comprising a water pump (1), characterized in that: The output end of the water pump (1) is provided with a water outlet pipe (2), the right side of the water outlet pipe (2) is provided with a connecting water pipe (3), the surface of the connecting water pipe (3) is provided with a connecting ring (4), and the top end of the connecting ring (4) is internally plugged with a spray head (5); A fixing mechanism is arranged at the rear end of the surface of the connecting ring (4), the fixing mechanism comprises a mounting plate (8), the mounting plate (8) is fixedly connected to the rear end of the surface of the connecting ring (4), a plug hole (19) is provided on the surface of the mounting plate (8), a connecting shell (6) is fixedly installed on both sides of the surface of the connecting ring (4), a connecting block (7) located inside the connecting shell (6) is fixedly installed on both sides of the surface of the sprinkler head (5), a fixing groove (22) is provided on the surfaces of the connecting shell (6) and the connecting block (7), a fixing plate (9) is fixedly installed on both left and right ends of the mounting plate (8), a supporting plate (10) is fixedly installed on the top end of the fixing plate (9), a fixing cylinder (11) is fixedly installed on the top end of the supporting plate (10), and a fixing cylinder (11) is fixedly installed on the top end of the supporting plate (10). A spring (12) is arranged inside the cylinder (11), the bottom end of the spring (12) is fixedly mounted with a limit block (13) located inside the fixed cylinder (11), the bottom end of the limit block (13) is fixedly mounted with a connecting rod (14) located outside the fixed cylinder (11), the bottom end of the connecting rod (14) is fixedly mounted with a moving block (15), the inside of the moving block (15) is rotatably connected with a rotating rod (16) located inside a socket (19), a square block (17) is arranged at the bottom end of the surface of the rotating rod (16), a rotating block (18) located at the top end of the moving block (15) is fixedly mounted at the top end of the rotating rod (16), a connecting rod (20) is fixedly mounted at the front end of the moving block (15), and a plug block (21) located inside a fixed groove (22) is fixedly mounted at the bottom end of the connecting rod (20).

2. The subway fire sprinkler device according to claim 1, characterized in that: A limit ring (27) is provided inside the moving block (15), and the inside of the limit ring (27) is rotatably connected to a rotation groove (23) located on the surface of the rotation rod (16).

3. The subway fire sprinkler device according to claim 1, characterized in that: A circular plate (24) is fixedly mounted on the surface of the connecting ring (4), support rods (25) are fixedly mounted on both sides of the top of the circular plate (24), and a protective plate (26) located at the top of the shower head (5) is fixedly mounted on the top of the support rods (25).

4. The subway fire sprinkler device according to claim 1, characterized in that: The surface of the rotating block (18) is provided with a protrusion, and the protrusion is of a rough design.

5. The subway fire sprinkler device according to claim 1, characterized in that: The limit block (13) is circular in design, and the surface of the limit block (13) fits the inner wall of the fixed cylinder (11), and the size of the limit block (13) is larger than the connecting rod (14).

6. The subway fire sprinkler device according to claim 1, characterized in that: The second fixing groove (22) on the surface of the connecting block (7) is designed as a square, and the second fixing groove (22) on the surface of the connecting block (7) is designed as a through hole.

7. The subway fire sprinkler device according to claim 1, characterized in that: The number of the spring (12), the limiting block (13) and the connecting rod (14) is two, and they are designed to be longitudinally symmetrical about the center of the moving block (15).

Images