Corridor spraying device for building fire fighting

Abstract

The utility model discloses a corridor spraying device for building fire protection, and relates to the technical field of building fire protection. The corridor spraying device for building fire protection comprises a shell, an opening is formed in the bottom of the shell, fixing rods are fixedly installed on the inner walls of the front side and the rear side of the shell, inner hollow cylinders are rotatably installed on the outer walls of the fixing rods, and pistons are fixedly installed on the outer walls of the inner hollow cylinders. In the using process of the corridor spraying device for building fire fighting, water flow can push leaf plates of a reciprocating structure, so that the reciprocating structure can drive an inner hollow cylinder, an outer hollow cylinder and a spraying cylinder to swing left and right in a reciprocating mode, the spraying range of the spraying cylinder is widened, and the better fire extinguishing effect is achieved; when water enters the inner hollow cylinder, the outer hollow cylinder and the spraying cylinder through a second hose, the water pressure in the inner hollow cylinder, the outer hollow cylinder and the spraying cylinder is gradually increased, the outer hollow cylinder and the spraying cylinder are driven by the water pressure to move downwards, so that the spraying cylinder extends to the position below the opening, the spraying cylinder does not need to be driven by electric equipment to descend and swing left and right in a reciprocating mode, and cost is low; the market popularization is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building fire protection, in particular to a corridor sprinkler device for building fire protection. Background Art

[0002] Chinese patent document CN213374881 U discloses a corridor sprinkler device for building fire protection, comprising a mounting plate, which is fixedly mounted on a mounting surface; a mounting groove is provided on the surface of the mounting plate; a mounting seat is slidably mounted in the mounting groove via a lifting mechanism; a groove is provided inside the mounting seat; a mounting block is rotatably mounted inside the groove via a swing mechanism; a nozzle is provided at the bottom end of the mounting block; and the top end of the mounting block is connected to an external water source via a hose. The device has an aesthetically pleasing appearance, good fire extinguishing effect, and a large spraying range.

[0003] However, when the above-mentioned sprinkler device is in use, the sprinkler head moves down out of the installation slot, pushing the two baffles to open outward, which can easily cause the sprinkler head to deform and be damaged, affecting the fire extinguishing effect; secondly, the sprinkler device is provided with two sets of electric push rods, and only through the two sets of electric push rods can the sprinkler head be driven to move to the outside of the installation slot and driven to swing back and forth, which increases the cost of the sprinkler device, and the two sets of electric push rods require additional connection lines before they can be used, which further increases the cost. Utility Model Content

[0004] The purpose of the present utility model is to provide a corridor sprinkler device for building fire protection, so as to solve the problems and defects raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a corridor sprinkler device for building fire protection, comprising a shell, an opening is provided at the bottom of the shell, a fixing rod is fixedly installed on the inner walls of the front and rear sides of the shell, an inner hollow cylinder is rotatably installed on the outer wall of the fixing rod, a piston is fixedly installed on the outer wall of the inner hollow cylinder, an outer hollow cylinder is sleeved on the outer side of the inner hollow cylinder and the outer side of the piston, the inner hollow cylinder is slidably installed on the top of the outer hollow cylinder, the piston is slidably installed on the inner side of the outer hollow cylinder, a spray barrel is fixedly installed on the bottom of the outer hollow cylinder, and the interiors of the spray barrel, the outer hollow cylinder and the inner hollow cylinder are communicated with each other, the spray barrel is located in the opening, and also includes a shell cover that is snap-fitted and installed on the outer side of the bottom of the shell, the spray barrel is located on the inner side of the shell cover, and is fixedly installed. A fixing ring is installed on the outer wall of the inner hollow cylinder, and a push spring is sleeved on the outside of the inner hollow cylinder. The push spring is fixedly installed between the fixing ring and the outer hollow cylinder. When water enters the inner hollow cylinder, the outer hollow cylinder and the nozzle through the second hose, the water pressure inside the inner hollow cylinder, the outer hollow cylinder and the nozzle gradually increases. Due to the water pressure, the outer hollow cylinder and the nozzle are driven to move downward, so that the nozzle extends to the bottom of the opening. There is no need to drive the nozzle down by electric equipment. The reciprocating structure installed on the top of the inner hollow cylinder is used to drive the nozzle to swing back and forth left and right through the reciprocating structure. A pushing structure is provided on one side of the reciprocating structure. The reciprocating structure and the pushing structure are used to detach the shell cover from the bottom of the shell and open and close the opening of the shell.

[0006] Preferably, the reciprocating structure includes a gear, a movable rod, a rack, a circular box, a rotating shaft, a paddle, a disc, a centrifugal shaft and a push-pull rod. The gear is fixedly mounted on the top of the inner hollow cylinder, and the gear is rotatably mounted on the outer wall of the fixed rod. The rack is fixedly mounted on the bottom of the movable rod, and the rack is meshed with the gear. The circular box is fixedly mounted on the inner wall of the shell, the rotating shaft is rotatably mounted on the front and rear sides of the circular box, the paddle is fixedly mounted on the outer wall of the rotating shaft, the disc is fixedly mounted on the front end of the rotating shaft, the centrifugal shaft is fixedly mounted on the front side of the disc, and the push-pull rod is rotatably mounted on the outer wall of the centrifugal shaft. One end of the push-pull rod is meshed with one end of the movable rod, which can drive the inner hollow cylinder, the outer hollow cylinder and the nozzle to swing back and forth left and right, so as to increase the spraying range of the nozzle and achieve a better fire extinguishing effect. Moreover, there is no need to drive the nozzle to swing back and forth left and right through electric equipment, which has low cost and is convenient for market promotion.

[0007] Preferably, a sliding groove is provided on the rear outer wall of the shell, and the rear side of the movable rod is slidably installed in the sliding groove.

[0008] Preferably, the pushing structure includes a positioning block, a push rod, and a linkage rod. The positioning block is fixedly mounted on the inner wall of the other side of the shell, the push rod is slidably mounted between the shell and the positioning block, one end of the linkage rod is hingedly mounted on one end of the push rod, and the other end of the linkage rod is hingedly mounted on the other end of the movable rod. The other end of the push rod is in contact with the inner bottom of the shell cover. Through the pushing structure, the reciprocating structure can also push the shell cover downward to detach the shell cover from the bottom of the shell and open and close the opening of the shell. In the process of the nozzle moving downward, the nozzle is prevented from hitting the shell cover and causing damage.

[0009] Preferably, a first hose is fixedly installed on one side of the shell, the first hose passes through one side of the round box and communicates with the interior of the round box, and a second hose is fixedly installed on the other side of the round box and one side of the inner hollow cylinder, the second hose is communicated with the interior of the round box and the interior of the inner hollow cylinder.

[0010] Preferably, a spray hole is provided at the bottom of the spray barrel.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] During the use of the corridor sprinkler device for building fire protection, the water flow will push the blades of the reciprocating structure, so that the reciprocating structure can drive the inner hollow cylinder, the outer hollow cylinder, and the nozzle to swing back and forth left and right, so as to increase the spraying range of the nozzle and achieve a better fire extinguishing effect. When water enters the interior of the inner hollow cylinder, the outer hollow cylinder, and the nozzle through the second hose, the water pressure inside the inner hollow cylinder, the outer hollow cylinder, and the nozzle gradually increases. Due to the water pressure, the outer hollow cylinder and the nozzle are driven to move downward, so that the nozzle extends to the bottom of the opening. There is no need to use electric equipment to drive the nozzle to descend and swing back and forth left and right, which is low in cost and easy to promote in the market. Through the coordinated use of the pushing structure, the reciprocating structure can also push the shell cover downward to detach the shell cover from the bottom of the shell body, open and close the opening of the shell body, and avoid the nozzle hitting the shell cover and causing damage during the downward movement of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the housing and the housing cover of the utility model;

[0016] Figure 3 It is a cross-sectional view of the outer hollow cylinder, spray cylinder and round box of the utility model.

[0017] Figure numerals: 1. shell; 2. shell cover; 3. first hose; 4. second hose; 5. inner hollow cylinder; 6. outer hollow cylinder; 7. nozzle; 8. piston; 9. fixing ring; 10. push spring; 11. fixing rod; 12. gear; 13. movable rod; 14. rack; 15. round box; 16. rotating shaft; 17. blade; 18. disc; 19. centrifugal shaft; 20. push-pull rod; 21. positioning block; 22. push rod; 23. linkage rod. DETAILED DESCRIPTION

[0018] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0019] See also Figure 1-3 The utility model provides a technical solution: a corridor sprinkler device for building fire protection, comprising a shell 1, an opening is opened at the bottom of the shell 1, a fixing rod 11 is fixedly installed on the inner wall of the front and rear sides of the shell 1, an inner hollow cylinder 5 is rotatably installed on the outer wall of the fixing rod 11, a piston 8 is fixedly installed on the outer wall of the inner hollow cylinder 5, an outer hollow cylinder 6 is sleeved on the outer side of the inner hollow cylinder 5 and the piston 8, the inner hollow cylinder 5 is slidably installed on the top of the outer hollow cylinder 6, the piston 8 is slidably installed on the inner side of the outer hollow cylinder 6, a spray cylinder 7 is fixedly installed on the bottom of the outer hollow cylinder 6, and the interiors of the spray cylinder 7, the outer hollow cylinder 6 and the inner hollow cylinder 5 are communicated, the spray cylinder 7 is located in the opening, and also includes a shell cover 2 that is snap-fitted and installed on the outer side of the bottom of the shell 1, the spray cylinder 7 is located on the inner side of the shell cover 2 and is fixedly installed inside. The fixing ring 9 on the outer wall of the hollow cylinder 5 is sleeved on the push spring 10 on the outside of the inner hollow cylinder 5. The push spring 10 is fixedly installed between the fixing ring 9 and the outer hollow cylinder 6. When water enters the inner hollow cylinder 5, the outer hollow cylinder 6 and the spray gun 7 through the second hose 4, the water pressure inside the inner hollow cylinder 5, the outer hollow cylinder 6 and the spray gun 7 gradually increases. Due to the water pressure, the outer hollow cylinder 6 and the spray gun 7 are driven to move downward, so that the spray gun 7 extends to the bottom of the opening. There is no need to drive the spray gun 7 down by an electric device. The reciprocating structure installed on the top of the inner hollow cylinder 5 is used to drive the spray gun 7 to swing back and forth left and right through the reciprocating structure. A pushing structure is provided on one side of the reciprocating structure. The reciprocating structure and the pushing structure are used to detach the shell cover 2 from the bottom of the shell 1 and open and close the opening of the shell 1.

[0020] The reciprocating structure includes a gear 12, a movable rod 13, a rack 14, a round box 15, a rotating shaft 16, a blade 17, a disc 18, a centrifugal shaft 19 and a push-pull rod 20. The gear 12 is fixedly mounted on the top of the inner hollow cylinder 5, and the gear 12 is rotatably mounted on the outer wall of the fixed rod 11. The rack 14 is fixedly mounted on the bottom of the movable rod 13, and the rack 14 is engaged with the gear 12. The round box 15 is fixedly mounted on the inner wall of the shell 1, and the rotating shaft 16 is rotatably mounted on the front and rear sides of the round box 15. The blade 17 is fixedly mounted on the outer wall of the rotating shaft 16. The disc 18 is fixedly mounted on the front end of the rotating shaft 16. The centrifugal shaft 19 is fixedly mounted on the front side of the disc 18. The push-pull rod 20 is rotatably mounted on the outer wall of the centrifugal shaft 19. One end of the push-pull rod 20 is engaged with one end of the movable rod 13. When When a fire occurs, water from the fire-fighting pipe passes through the first hose 3, the round box 15, and the second hose 4 in sequence into the interior of the inner hollow tube 5, the outer hollow tube 6, and the nozzle 7. When the water passes through the round box 15, the water pushes the blade 17, driving the blade 17, the rotating shaft 16, and the disc 18 to rotate. The rotation of the disc 18 drives the centrifugal shaft 19 and the other end of the push-pull rod 20 to rotate centrifugally, so that one end of the centrifugal shaft 19, the movable rod 13, and the rack 14 move back and forth left and right. The reciprocating movement of the rack 14 drives the gear 12, the inner hollow tube 5, the outer hollow tube 6, and the nozzle 7 to swing left and right, which is used to increase the spraying range of the nozzle 7 and achieve a better fire extinguishing effect. There is no need to use electric equipment to drive the nozzle 7 to swing back and forth left and right, which is low in cost and easy to market promotion.

[0021] A sliding groove is provided on the rear outer wall of the housing 1 , and the rear side of the movable rod 13 is slidably installed in the sliding groove.

[0022] The pushing structure includes a positioning block 21, a push rod 22, and a linkage rod 23. The positioning block 21 is fixedly installed on the inner wall of the other side of the shell 1, and the push rod 22 is slidably installed between the shell 1 and the positioning block 21. One end of the linkage rod 23 is hingedly installed on one end of the push rod 22, and the other end of the linkage rod 23 is hingedly installed on the other end of the movable rod 13. The other end of the push rod 22 is in contact with the inner bottom of the shell cover 2, and the movable rod 13 can push and pull the linkage rod 23 and the push rod 22 by moving back and forth left and right, so that the push rod 22 pushes the shell cover 2 downward, detaches the shell cover 2 from the bottom of the shell 1, and opens and closes the opening of the shell 1. In the process of the nozzle 7 moving downward, the nozzle 7 is prevented from hitting the shell cover 2 and causing damage.

[0023] A first hose 3 is fixedly installed on one side of the shell 1, and the first hose 3 passes through one side of the round box 15 and communicates with the interior of the round box 15. A second hose 4 is fixedly installed on the other side of the round box 15 and one side of the inner hollow cylinder 5, and the second hose 4 communicates with the interior of the round box 15 and the interior of the inner hollow cylinder 5.

[0024] The bottom of the spray barrel 7 is provided with a spray hole.

[0025] Working principle: Connect the first hose 3 to the fire pipe. When a fire occurs, the water in the fire pipe passes through the first hose 3, the round box 15, and the second hose 4 in sequence into the inner hollow cylinder 5, the outer hollow cylinder 6, and the nozzle 7. When the water passes through the round box 15, the water pushes the blade 17, driving the blade 17, the rotating shaft 16, and the disc 18 to rotate. The rotation of the disc 18 drives the centrifugal shaft 19 and the other end of the push-pull rod 20 to rotate centrifugally, so that one end of the centrifugal shaft 19, the movable rod 13, and the rack 14 move back and forth left and right. The reciprocating movement of the rack 14 drives the gear 12 , the inner hollow cylinder 5, the outer hollow cylinder 6, and the spray gun 7 swing left and right, and the movable rod 13 moves back and forth to push and pull the linkage rod 23 and the push rod 22, so that the push rod 22 pushes the shell cover 2 downward, and the shell cover 2 is separated from the bottom of the shell 1. When water enters the interior of the inner hollow cylinder 5, the outer hollow cylinder 6, and the spray gun 7 through the second hose 4, the water pressure will pressurize the interior of the inner hollow cylinder 5, the outer hollow cylinder 6, and the spray gun 7, so that the outer hollow cylinder 6 and the spray gun 7 descend, and drive the spray gun 7 to move to the bottom of the opening. The water inside the spray gun 7 is sprayed to the corridor through the spray hole to extinguish the fire in the corridor.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A corridor sprinkler device for building fire protection, comprising a shell (1), an opening is provided at the bottom of the shell (1), a fixing rod (11) is fixedly installed on the inner walls of the front and rear sides of the shell (1), an inner hollow cylinder (5) is rotatably installed on the outer wall of the fixing rod (11), a piston (8) is fixedly installed on the outer wall of the inner hollow cylinder (5), an outer hollow cylinder (6) is sleeved on the outer side of the inner hollow cylinder (5) and the outer side of the piston (8), the inner hollow cylinder (5) is slidably installed on the top of the outer hollow cylinder (6), the piston (8) is slidably installed on the inner side of the outer hollow cylinder (6), a spray cylinder (7) is fixedly installed on the bottom of the outer hollow cylinder (6), and the interiors of the spray cylinder (7), the outer hollow cylinder (6) and the inner hollow cylinder (5) are communicated, and the spray cylinder (7) is located in the opening, characterized in that Also includes: A shell cover (2) is snap-fitted and mounted on the outer side of the bottom of the shell (1), and the spray barrel (7) is located on the inner side of the shell cover (2); A fixing ring (9) is fixedly mounted on the outer wall of the inner hollow cylinder (5), and a push spring (10) is sleeved on the outer side of the inner hollow cylinder (5). The push spring (10) is fixedly mounted between the fixing ring (9) and the outer hollow cylinder (6); A reciprocating structure installed on the top of the inner hollow cylinder (5) is used to drive the spray cylinder (7) to swing back and forth. A pushing structure is provided on one side of the reciprocating structure, and the reciprocating structure and the pushing structure are used to separate the shell cover (2) from the bottom of the shell (1) and open and close the opening of the shell (1).

2. A building fire protection corridor sprinkler device according to claim 1, characterized in that: The reciprocating structure comprises a gear (12), a movable rod (13), a rack (14), a round box (15), a rotating shaft (16), a blade (17), a disc (18), a centrifugal shaft (19) and a push-pull rod (20), wherein the gear (12) is fixedly mounted on the top of the inner hollow cylinder (5), and the gear (12) is rotatably mounted on the outer wall of the fixed rod (11), and the rack (14) is fixedly mounted on the bottom of the movable rod (13), and the rack (14) is mutually connected with the gear (12). The circular box (15) is fixedly mounted on the inner wall of the housing (1), the rotating shaft (16) is rotatably mounted on the front and rear sides of the circular box (15), the blade (17) is fixedly mounted on the outer wall of the rotating shaft (16), the circular disc (18) is fixedly mounted on the front end of the rotating shaft (16), the centrifugal shaft (19) is fixedly mounted on the front side of the circular disc (18), the push-pull rod (20) is rotatably mounted on the outer wall of the centrifugal shaft (19), and one end of the push-pull rod (20) is meshed with one end of the movable rod (13).

3. A building fire protection corridor sprinkler device according to claim 2, characterized in that: A sliding groove is provided on the rear outer wall of the housing (1), and the rear side of the movable rod (13) is slidably installed in the sliding groove.

4. A building fire protection corridor sprinkler device according to claim 3, characterized in that: The pushing structure comprises a positioning block (21), a push rod (22), and a linkage rod (23); the positioning block (21) is fixedly mounted on the inner wall of the other side of the shell (1); the push rod (22) is slidably mounted between the shell (1) and the positioning block (21); one end of the linkage rod (23) is hingedly mounted on one end of the push rod (22); the other end of the linkage rod (23) is hingedly mounted on the other end of the movable rod (13); and the other end of the push rod (22) contacts the inner bottom of the shell cover (2).

5. A building fire protection corridor sprinkler device according to claim 4, characterized in that: A first hose (3) is fixedly mounted on one side of the housing (1), the first hose (3) passes through one side of the round box (15) and communicates with the interior of the round box (15), a second hose (4) is fixedly mounted on the other side of the round box (15) and one side of the inner hollow cylinder (5), the second hose (4) communicates with both the interior of the round box (15) and the interior of the inner hollow cylinder (5).

6. A building fire protection corridor sprinkler device according to claim 5, characterized in that: The bottom of the spray barrel (7) is provided with a spray hole.

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