Indoor fire fighting device installed in hidden mode

Abstract

The invention relates to the field of indoor fire fighting, in particular to an indoor fire fighting device installed in a hidden mode. Comprising a sliding rail detachably connected to the interior of a suspended ceiling, a sliding rod slidably connected to the sliding rail and capable of being exposed out of the suspended ceiling, a spraying head detachably connected to the end, capable of being exposed out of the suspended ceiling, of the sliding rod, and a decorative plate detachably connected to the sliding rod and capable of sealing an opening, allowing the spraying head to be exposed out, of the suspended ceiling. The corrugated pipe is communicated with the spraying head and a water pipe in the suspended ceiling and can be bent or elongated; the lowering motor is located in the suspended ceiling; the winding reel can be driven by the lowering motor to rotate; the rod wire can drive the sliding rod to move and can be wound by the winding reel; and the controller is electrically connected to the lowering motor and the temperature sensor, so that when the temperature of a fire is high, the spraying head can be exposed out of the suspended ceiling, the spraying head is located in high-temperature air below the suspended ceiling, and then the spraying head conducts fire extinguishing on a fire source in a large-range area.

Description

Technical Field

[0001] The present application relates to the field of indoor fire protection, and in particular to a concealed indoor fire protection device. Background Art

[0002] In order to extinguish indoor fires in time at the early stage, water pipes are generally laid on the ceiling, and fire sprinklers connected to the water pipes are installed under the suspended ceiling. The fire sprinklers are controlled by combining heat-sensitive elements, such as thermosensitive glass and fusible alloys, to spray water mist to the fire source in time for fire extinguishing.

[0003] In some existing occasions, when fire sprinklers are installed on the suspended ceiling, higher requirements are also put forward for the concealment of the fire sprinklers during installation, so that the fire sprinklers are not easily noticed when there is no fire, so as to improve the aesthetics of indoor buildings. For example, a fire sprinkler adjustable concealed downward spray decorative cover with announcement number CN220656270U is provided. The fire sprinkler is placed in the suspended ceiling, and a decorative panel is arranged at the corresponding opening of the suspended ceiling. The decorative panel is connected to the internal structure of the suspended ceiling via other components using fusible alloy, so that when the indoor temperature rises due to a fire, the decorative panel can fall off, so that the fire sprinklers located in the suspended ceiling can spray water downward.

[0004] Regarding the above-mentioned related technologies, fire sprinklers generally spray water mist in a large surrounding area, and installing the fire sprinklers in the ceiling will limit the original large spraying range of the fire sprinklers, affecting the fire extinguishing effect. Summary of the invention

[0005] In order to ensure that the fire sprinkler has good concealment while the fire extinguishing range of the fire sprinkler is not easily affected, the present application provides a fire-fighting device that is concealedly installed indoors.

[0006] The present application provides a concealed indoor fire-fighting device that adopts the following technical solution.

[0007] A concealed fire-fighting device installed indoors comprises a slide rail detachably connected to a suspended ceiling, a slide rod slidably connected to the slide rail and exposed to the suspended ceiling, a sprinkler head detachably connected to the slide rod and exposed at one end of the suspended ceiling, a decorative panel detachably connected to the slide rod and capable of closing an opening in the suspended ceiling through which the sprinkler head is exposed, a bellows connected to the sprinkler head and a water pipe in the suspended ceiling and capable of bending or extending, a discharge motor located in the suspended ceiling, a winding drum that can be driven by the discharge motor to rotate, a pole line that can drive the slide rod to move and can be wound up by the winding drum, a temperature sensor for detecting the temperature below the suspended ceiling, and a controller electrically connected to the discharge motor and the temperature sensor.

[0008] By adopting the above technical solution, when a fire occurs indoors, the temperature sensor at the ceiling detects that the temperature above the room rises and eventually exceeds the temperature threshold preset in the controller, and the lower discharge motor drives the winding drum to rotate to release the pole line, so that the sliding rod together with the sprinkler head and the decorative panel move downward synchronously and are exposed on the ceiling, so that the water spraying range of the sprinkler head is not easily restricted, and there is no need to open a large opening on the ceiling to ensure the water spraying range of the sprinkler head. While ensuring that the sprinkler head has good concealment and does not affect the aesthetics of the interior decoration, it is not easy to limit the water spraying range of the sprinkler head.

[0009] Optionally, the rod line is abutted against a bottom wheel, the bottom wheel is rotatably connected to a heat conductor detachably connected to the ceiling, the area of ​​the heat conductor exposed to the bottom surface of the ceiling is the largest, and the melting point of the rod line is lower than the temperature threshold of the thermal sensitive element in the sprinkler head.

[0010] By adopting the above technical solution, when the discharger or the wire reel is affected by the line or other debris dropped in the ceiling and cannot smoothly release the pole line and a fire occurs indoors, the heat conductor will transfer the heat of the high-temperature air to the pole line to melt the pole line, so that the sprinkler head can be smoothly exposed to the ceiling.

[0011] Optionally, the temperature threshold preset in the controller is lower than the melting point of the rod line.

[0012] By adopting the above technical solution, when the temperature is high, the sprinkler head can be directly lowered and exposed to the ceiling, so that the sprinkler head can directly contact the high-temperature air in the room early, so that the sprinkler head can spray water more quickly when a fire occurs.

[0013] Optionally, the lower discharge motor and the winding drum are connected to the same insulation block, the insulation block is detachably connected to the heat conductive member, and the temperature sensor is detachably connected to the bottom surface of the heat conductive member.

[0014] By adopting the above technical solution, when the heat conductor is disassembled from the suspended ceiling, it can be removed from the suspended ceiling together with the lower discharge motor and the winding drum, so as to facilitate the maintenance of the lower discharge motor and the winding drum, and also facilitate the initial installation of the heat conductor corresponding to the suspended ceiling after the pole line is released from the winding drum and passed through the bottom wheel.

[0015] Optionally, a spring block is slidably connected to the surface of the decorative plate connecting slide rod, and the spring block sleeve is provided with a compression spring forcing the spring block to stay away from the decorative plate.

[0016] By adopting the above technical solution, after a certain adhesion strength is generated between the surface of the decorative panel and the ceiling after painting, when the rod line is released, the decorative panel can also be moved away from the ceiling under the action of the compression spring, so that the sprinkler head can be smoothly exposed to the ceiling.

[0017] Optionally, the sliding rod is detachably connected to a tension sensor for connecting the rod line, and the tension sensor is electrically connected to the controller.

[0018] By adopting the above technical solution, the tension provided by the winding drum to the pole line can be detected to ensure that the tension applied to the pole line is not too large.

[0019] Optionally, the decorative panel includes a bottom plate that closes the opening of the ceiling for the sprinkler head to be exposed, and a connecting rod fixedly connected to the bottom plate, the upper end of the connecting rod is higher than the height of the sprinkler head spraying water, and a lower plate line is tied between the connecting rod and the sliding rod, and the melting point of the lower plate line is equal to the temperature threshold of the thermal sensitive element of the sprinkler head.

[0020] By adopting the above technical solution, when a fire occurs, the lower plate line will melt so that the decorative plate will be detached from the sliding rod, so that the connecting rod and the bottom plate will not easily block part of the spraying range of the sprinkler head, so that the sprinkler head can effectively spray water to extinguish the fire in a designated area, and the lower plate line will only melt when the sprinkler head is working, so that the decorative plate will not easily fall off when there is no fire.

[0021] Optionally, the connecting rod is rotatably connected to an eccentric wheel, the rotation axis of the eccentric wheel is inconsistent with its own center line, the eccentric wheel is wound with a wheel rod line with a melting point higher than that of the lower plate line, and the wheel rod line is detachably connected to an end block detachably connected to the sliding rod.

[0022] By adopting the above technical solution, after the lower plate line is melted, the connecting rod falls with the eccentric wheel, so that the eccentric wheel slowly releases the lower plate line, so that the bottom plate is not easy to cause harm to people who may be under the ceiling.

[0023] Optionally, the end block is sleeved on the sliding rod, and a plurality of deformation pieces capable of bending and deforming are fixedly connected to the end block, and one end of the deformation piece away from the end block is hemispherical and plugged into the sliding rod.

[0024] By adopting the above technical solution, after the bottom plate falls to the ground, the wheel-rod line may not have melted yet due to its relatively high melting point. As a result, if people run in panic at the fire scene, the wheel-rod line connected to the slide bar may easily cause obstacles to the on-site personnel and affect their timely evacuation. The provision of the deformation piece can meet the requirement of the bottom plate falling slowly. At the same time, when the wheel-rod line is subjected to a certain external force, the end block will detach from the slide bar, so that the wheel-rod line is not easy to cause obstacles to the on-site personnel.

[0025] Optionally, a surface of the deformation sheet facing away from the slide rod is formed with a threading hole for the lower plate wire to pass through, and the lower plate wire is tied around all the deformation sheets for several circles.

[0026] By adopting the above technical solution, the lower plate wire is used to fix the line change piece, so that when the lower plate wire is not melted, the end block is not easy to separate from the slide rod, so that the bottom plate can fit tightly to the ceiling.

[0027] In summary, the present application includes at least the following beneficial effects.

[0028] When a fire occurs indoors, the temperature sensor at the ceiling detects that the temperature above the room has risen and eventually exceeded the temperature threshold preset in the controller. The lower discharge motor drives the winding drum to rotate to release the pole line, so that the sliding rod together with the sprinkler head and the decorative panel move downward synchronously and are exposed on the ceiling, so that the water spraying range of the sprinkler head is not easily restricted, and there is no need to open a large opening on the ceiling to ensure the water spraying range of the sprinkler head. While ensuring that the sprinkler head has a good concealment and does not affect the aesthetics of the interior decoration, it is not easy to limit the water spraying range of the sprinkler head. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a front view of the present application, and a schematic structural diagram of a partial cross-section of the bottom plate where the spring block is arranged; Figure 2 It is the control system block diagram of the discharge motor; Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Slide rail; 2. Slide rod; 3. Sprinkler head; 31. Threading hole; 32. Upper wheel; 4. Decorative panel; 41. Tension sensor; 42. Bottom plate; 43. Connecting rod; 44. Lower plate line; 45. Insulation block; 46. Eccentric wheel; 47. Wheel-rod line; 48. End block; 49. Deformation sheet; 5. Bellows; 51. Lower discharge motor; 52. Winding drum; 53. Rod line; 54. Temperature sensor; 55. Controller; 56. Bottom wheel; 57. Heat conductor; 58. Spring block; 59. Compression spring. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] The present application embodiment discloses a fire-fighting device which is concealedly installed indoors. Figure 1 , including two vertical slide rails 1 which are detachably connected to the suspended ceiling, a slide rod 2 is slidably connected to the adjacent side of the two slide rails 1 along the vertical direction, the upper end of the slide rod 2 is slidably connected to the slide rail 1, a sprinkler head 3 is detachably connected between the bottom ends of the two slide rods 2, a corrugated pipe 5 is connected between the upper part of the sprinkler head 3 and the water pipe in the suspended ceiling, a decorative plate 4 is installed at the bottom end of the slide rod 2, and the decorative plate 4 can close the opening on the bottom surface of the suspended ceiling for the sprinkler head 3 to be exposed.

[0033] Reference Figure 1 and Figure 2The bottom surface of the ceiling is detachably connected with a heat conductor 57 with high thermal conductivity, which can be made of copper or the like. The main form of the heat conductor 57 is a flat plate with a large horizontal area. The upper surface of the heat conductor 57 is detachably connected with a heat insulation block 45 with low thermal conductivity, which can be made of high temperature resistant rubber or the like. The upper surface of the heat insulation block 45 is rotatably connected with a winding drum 52. The heat insulation block 45 is also detachably connected with a lower discharge motor 51 whose output shaft is coaxially detachably connected to the winding drum 52. The winding drum 52 is wound with a rod line 53 with a melting point of 75°C to 85°C, which can be made of indium tin bismuth alloy wire or nylon yarn or the like. The upper surface of the heat conductor 57 is rotatably connected with a bottom wheel 56, which is made of the same high thermal conductivity material as the bottom wheel 56 and the heat conductor 57, and the rod line 53 passes through the bottom of the bottom wheel 56. The upper end of the slide rail 1 close to the heat conductive member 57 is rotatably connected to the upper wheel 32, and the pole line 53 passes through the upper part of the upper wheel 32. The upper end of the slide bar 2 is detachably connected to the tension sensor 41, and the tension sensor 41 is provided with a ring for tying the end of the pole line 53. The lower surface of the heat conductive member 57 is detachably connected to the temperature sensor 54, and the temperature sensor 54 is embedded in the heat conductive member 57. The tension sensor 41, the temperature sensor 54 and the lower discharge motor 51 are electrically connected to the controller 55, so that when the temperature value detected by the temperature sensor 54 is greater than the temperature threshold value preset in the controller 55, the lower discharge motor 51 is operated to release the pole line 53. And when the tension sensor 41 detects that the tension of the pole line 53 is equal to the tension threshold value preset by the controller 55, the winding drum 52 stops winding the pole line 53.

[0034] In addition, the temperature threshold preset in the controller 55 is lower than the melting point of the rod line 53, so that when the temperature sensor 54 detects that the temperature has risen to a level that may indicate a fire, the discharge motor 51 will operate, so that the sprinkler head 3 is exposed from inside and outside the ceiling as early as possible, so that the high-temperature air can contact the heat-sensitive element of the sprinkler head 3 as early as possible, so that the sprinkler head 3 can start spraying water to extinguish the fire as early as possible when a fire occurs. In addition, the melting point of the rod line 53 is lower than the temperature threshold of the heat-sensitive element in the sprinkler head 3, so that when the reel 52 cannot smoothly release the rod line 53, the indoor heat when a fire occurs is transferred to the rod line 53 as early as possible through the heat conductor 57, so that the rod line 53 melts as early as possible, and then the sprinkler head 3 can be exposed to the ceiling as early as possible.

[0035] Reference Figure 1 and Figure 3The decorative plate 4 includes a horizontal bottom plate 42 and two connecting rods 43 fixedly connected to the upper surface of the bottom plate 42. The upper ends of the two connecting rods 43 are rotatably connected to eccentric wheels 46. The rotation axis of the eccentric wheel 46 is inconsistent with its own axis. The eccentric wheel 46 is wound with a wheel rod line 47 with a melting point slightly higher than the temperature threshold of the heat-sensitive element in the lower sprinkler head 3. The wheel rod line 47 is tied with an end block 48. The two end blocks 48 are correspondingly sleeved on the bottom ends of the two slide bars 2. The upper surfaces of the two end blocks 48 are fixedly connected with a number of deformation sheets 49. The upper surface of the deformation sheet 49 facing the slide bar 2 is convexly semi-spherical, and the convexity of the deformation sheet 49 is inserted into the corresponding concave part of the slide bar 2. At the same time, each deformation sheet 49 is formed with a threading hole 31 on the side away from the slide bar 2, and the threading holes 31 of all the deformation sheets 49 are penetrated with a number of circles of lower plate wire 44, so that the deformation sheet 49 is pressed tightly against the slide bar 2. At the same time, both ends of the lower plate line 44 are also passed through the opening of the connecting rod 43, so that the connecting rod 43 can move synchronously with the slide bar 2 when there is no fire. The melting point of the lower plate line 44 is equal to or slightly lower than the temperature threshold of the heat sensitive element in the sprinkler head 3, so that when the sprinkler head 3 starts to spray or before spraying, the lower plate line 44 will melt, so that the connecting rod 43 and the bottom plate 42 will fall down. At the same time, the bottom end of the slide bar 2 is higher than the water spraying position at the bottom of the sprinkler head 3, so that the connecting rod 43 and the bottom plate 42 are not easy to limit the effective water spraying range of the sprinkler head 3.

[0036] Reference Figure 1 , several elastic blocks 58 are evenly slidably connected around the vertical center line of the upper surface of the bottom plate 42, and the sliding direction of the elastic blocks 58 is vertical. The elastic blocks 58 are sleeved with compression springs 59 forcing the elastic blocks 58 to move upward. The elastic blocks 58 are located in the bottom plate 42 at one end with a larger width. At the same time, the opening of the bottom plate 42 for the elastic blocks 58 to pass through can be detachably connected to a square frame that can abut against the larger end of the elastic blocks 58, so that the elastic blocks 58 will not easily fall off the bottom plate 42. The elastic blocks 58 can abut against the ceiling, so that in the process of the bottom plate 42 being pressed against the ceiling for a long time, even if the bottom plate 42 and the ceiling have a certain adhesion strength due to repeated painting, when a fire occurs and the pole line 53 is released, the bottom plate 42 can smoothly move away from the ceiling.

[0037] The implementation principle of a concealed fire-fighting device installed indoors in the embodiment of the present application is as follows: when a fire occurs, when the temperature sensor 54 detects that the indoor temperature reaches a certain value, the lower discharge motor 51 will operate to release the rod line 53, so that the slide bar 2 and the sprinkler head 3 move downward and are exposed to the ceiling. When the indoor temperature reaches the melting point of the lower plate line 44, the lower plate line 44 melts to make the connecting rod 43 and the bottom plate 42 fall, and the wheel rod line 47 is slowly released under the damping action of the eccentric wheel 46 to control the falling speed of the bottom plate 42. Moreover, at this time, the temperature is already or is close to the temperature threshold of the heat sensitive element in the sprinkler head 3, so when the bottom plate 42 slowly falls or a short time later, the sprinkler head 3 immediately starts to spray water to extinguish the fire.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concealed fire-fighting device installed indoors, characterized in that: The invention comprises a slide rail (1) detachably connected to the suspended ceiling, a slide rod (2) slidably connected to the slide rail (1) and capable of being exposed to the suspended ceiling, a sprinkler head (3) detachably connected to the slide rod (2) and capable of being exposed to the suspended ceiling at one end, a decorative plate (4) detachably connected to the slide rod (2) and capable of closing an opening in the suspended ceiling through which the sprinkler head (3) is exposed, a bellows (5) connected to the sprinkler head (3) and a water pipe in the suspended ceiling and capable of being bent or extended, a lower discharge motor (51) located in the suspended ceiling, a winding drum (52) capable of being driven by the lower discharge motor (51) to rotate, a rod wire (53) capable of driving the slide rod (2) to move and capable of being wound up by the winding drum (52), a temperature sensor (54) for detecting the temperature below the suspended ceiling, and a controller (55) electrically connected to the lower discharge motor (51) and the temperature sensor (54).

2. The fire-fighting device for concealed indoor installation according to claim 1, characterized in that: The rod line (53) is in contact with a bottom wheel (56), and the bottom wheel (56) is rotatably connected to a heat-conducting member (57) that is detachably connected to the ceiling. The area of ​​the heat-conducting member (57) exposed on the bottom surface of the ceiling is the largest. The melting point of the rod line (53) is lower than the temperature threshold of the heat-sensitive element in the sprinkler head (3).

3. The fire-fighting device for concealed indoor installation according to claim 2, characterized in that: The temperature threshold preset in the controller (55) is lower than the melting point of the rod wire (53).

4. The fire-fighting device for concealed indoor installation according to claim 2, characterized in that: The lower discharge motor (51) and the winding drum (52) are connected to a common heat insulating block (45), the heat insulating block (45) is detachably connected to the heat conducting member (57), and the temperature sensor (54) is detachably connected to the bottom surface of the heat conducting member (57).

5. The fire-fighting device for concealed indoor installation according to claim 1, characterized in that: The surface of the decorative plate (4) connected to the slide rod (2) is slidably connected to a spring block (58), and the spring block (58) is sleeved with a compression spring (59) forcing the spring block (58) to move away from the decorative plate (4).

6. The fire-fighting device for concealed indoor installation according to claim 1, characterized in that: The sliding rod (2) is detachably connected to a tension sensor (41) for connecting a rod line (53), and the tension sensor (41) is electrically connected to a controller (55).

7. The fire-fighting device for concealed indoor installation according to claim 1, characterized in that: The decorative plate (4) comprises a bottom plate (42) for closing an opening of the suspended ceiling through which the sprinkler head (3) is exposed, and a connecting rod (43) fixedly connected to the bottom plate (42), wherein the height of the upper end of the connecting rod (43) is higher than the height of a water spraying point of the sprinkler head (3), and a lower plate wire (44) is tied between the connecting rod (43) and the sliding rod (2), wherein the melting point of the lower plate wire (44) is equal to the temperature threshold of a heat sensitive element of the sprinkler head (3).

8. The fire-fighting device for concealed indoor installation according to claim 7, characterized in that: The connecting rod (43) is rotatably connected to an eccentric wheel (46), the rotation axis of the eccentric wheel (46) is inconsistent with its own center line, the eccentric wheel (46) is wound with a wheel rod line (47) having a melting point higher than that of the lower plate line (44), and the wheel rod line (47) is detachably connected to an end block (48) detachably connected to the slide rod (2).

9. The fire-fighting device for concealed indoor installation according to claim 8, characterized in that: The end block (48) is sleeved on the slide rod (2), and a plurality of deformable sheets (49) capable of bending and deforming are fixedly connected to the end block (48). The end of the deformable sheet (49) away from the end block (48) is hemispherical and plugged into the slide rod (2).

10. The fire-fighting device for concealed indoor installation according to claim 9, characterized in that: A threading hole (31) for the lower plate wire (44) to pass through is formed on the surface of the deformable sheet (49) facing away from the slide bar (2), and the lower plate wire (44) is tied around the entire deformable sheet (49) for several turns.

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