Structure and method for opening a fire sprinkler head when the gap between a gypsum board ceiling and a roof slab is small

Abstract

The present invention provides a structure and method for opening a fire sprinkler head when the gap between a gypsum board ceiling and a top plate is small, which relates to the technical field of fire-fighting tools and includes a fixed sleeve, a cylinder, a main spindle box and a rotating gun. The fixed sleeve is installed below the sprinkler pipe, the cylinder is arranged below the fixed sleeve, a jacking plate is movably arranged inside the cylinder, and a pressing spring is arranged above the inside of the cylinder. The pressing spring is connected to the jacking plate below, and the main spindle box is arranged below the cylinder; in the present invention, the fixed sleeve is fastened on the sprinkler pipe, and the rotating gun is connected to the driving shaft of the second bevel gear to drive rotation, so as to drive the first bevel gear to rotate, drive the rotating main spindle to rotate, drive the drill bit to rotate, the pressing spring presses against the jacking plate and the rotating main spindle, so that the drill bit presses tightly against the gypsum board ceiling and gradually and automatically moves downward during the drilling process to perform drilling, which is convenient for operation in a narrow space and is operated based on the position of the sprinkler pipe, with accurate positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting tools, and particularly to a structure and method for opening a fire sprinkler head when the gap between a gypsum board ceiling and a top plate is small. Background Art

[0002] Fire sprinkler heads are used in fire sprinkler systems. When a fire occurs, water is sprinkled out through the splash plate of the sprinkler head for fire extinguishing. They are divided into pendant sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, sidewall sprinkler heads, etc. According to the definition in GB5135.1.3.1, a sprinkler head is: a water spraying device that starts automatically within a predetermined temperature range under the action of heat, or is started by a control device according to a fire signal, and sprays water in a designed spraying shape and flow rate.

[0003] Fire sprinkler heads are generally installed on a gypsum board ceiling and connected to the sprinkler pipe on the floor top plate. The fire pipeline is installed and fixed on the floor top plate, and the fire sprinkler pipe is installed downward. The gap formed between the floor top plate and the gypsum board ceiling is small. Before installation, the fire sprinkler pipe needs to be drilled through the gypsum board ceiling for subsequent installation of the sprinkler head. However, the very small gap between the floor top plate and the gypsum board ceiling causes many inconveniences in construction. Due to the small gap, it is difficult to carry out drilling construction between the gaps, and when constructing at the bottom of the gypsum board ceiling, it is difficult to accurately position the fire sprinkler pipe, resulting in deviations. Therefore, the present invention proposes a structure and method for opening a fire sprinkler head when the gap between a gypsum board ceiling and a top plate is small to solve the problems existing in the prior art. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a structure and method for opening a fire sprinkler head when the gap between a gypsum board ceiling and a top plate is small. The method for opening a fire sprinkler head when the gap between a gypsum board ceiling and a top plate is small is convenient for operation in a narrow space and is based on the position of the sprinkler pipe for operation, with accurate positioning.

[0005] To achieve the object of the present invention, the present invention is realized through the following technical solutions: A structure for opening a fire sprinkler head when the gap between a gypsum board ceiling and a top plate is small, including a fixed sleeve, a cylinder, a main spindle box, and a rotary gun. The fixed sleeve is installed below the sprinkler pipe. The cylinder is arranged below the fixed sleeve. A jacking plate is movably arranged inside the cylinder, and a pressing spring is arranged above the inside of the cylinder. The pressing spring is connected to the jacking plate below. The main spindle box is arranged below the cylinder, and a rotating main spindle is rotatably arranged inside the main spindle box. The upper end of the rotating main spindle is rotatably connected to the jacking plate. A first bevel gear is arranged on the rotating main spindle, and the lower end of the rotating main spindle extends out of the main spindle box and is installed with a drill bit.

[0006] On one side of the spindle box, there is a slideway, and an upward pulling spring is arranged inside the slideway. A second bevel gear adapted to the first bevel gear is movably arranged below inside the slideway. The upward pulling spring is used to pull the second bevel gear, and the drive shaft of the second bevel gear is connected to a rotating gun.

[0007] A further improvement lies in that: the spray pipe is installed below the floor ceiling and connected to a fire pipeline, and the lower part of the spray pipe faces the gypsum board ceiling.

[0008] A further improvement lies in that: the fixed sleeve, the barrel, the spindle box and the spray pipe are on the same vertical line, and the drill bit faces the gypsum board ceiling for opening and installing a spray head.

[0009] A further improvement lies in that: a fixing nut is arranged on the fixed sleeve, and the fixed sleeve is fixed to the spray pipe through the fixing nut.

[0010] A further improvement lies in that: a bearing is movably arranged below inside the slideway, the lower end of the upward pulling spring is connected to the bearing, and the drive shaft of the second bevel gear is rotatably installed through the bearing.

[0011] A further improvement lies in that: the drive shaft of the second bevel gear is connected to the output end of the rotating gun by using a cross-shaped male-female docking plug-in interface.

[0012] A further improvement lies in that: an internal screw pipe is arranged at the lower end of the rotating main shaft, and the drill bit is connected and fixed to the internal screw pipe by threads.

[0013] A further improvement lies in that: the barrel and the spindle box are separated by a partition plate, and the upper end of the rotating main shaft is rotatably connected to the top push plate through a ball.

[0014] A method for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small, includes the following steps:

[0015] S1: Fasten the fixed sleeve with the fixing nut on the spray pipe to ensure being on the same straight line with the spray pipe;

[0016] S2: Connect the rotating gun to the drive shaft of the second bevel gear, drive the first bevel gear to rotate, drive the rotating main shaft to rotate, and drive the drill bit to rotate;

[0017] S3: Press down the spring to hold against the top push plate and the rotating main shaft, so that the drill bit presses tightly against the gypsum board ceiling and gradually and automatically moves downward during the drilling process to perform drilling;

[0018] S4: The upward pulling spring pulls the bearing, thereby pulling the second bevel gear upward to abut against the first bevel gear, so that the two are closely attached to ensure the rotation of the drill bit.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention is fastened to the spray pipe through a fixed sleeve and driven to rotate by connecting the driving shaft of the second bevel gear through a rotating gun, so as to drive the first bevel gear to rotate, drive the rotating main shaft to rotate, drive the drill bit to rotate, and press the spring against the jacking plate and the rotating main shaft, so that the drill bit presses tightly against the gypsum board ceiling and gradually walks downward automatically during the drilling process to drill holes, which is convenient for operation in a narrow space and is based on the position of the spray pipe, with accurate positioning.

[0021] 2. The present invention pulls the bearing through the up-pulling spring to pull the second bevel gear upward and press it tightly against the first bevel gear, so that the two are closely attached to ensure the rotation of the drill bit and improve the reliability during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic operation diagram of the present invention;

[0023] Figure 2 is a schematic structural diagram of the present invention.

[0024] Among them: 1. Fixed sleeve; 2. Cylinder; 3. Main shaft box; 4. Rotating gun; 5. Spray pipe; 6. Jacking plate; 7. Down-pressing spring; 8. Rotating main shaft; 9. First bevel gear; 10. Drill bit; 11. Slideway; 12. Up-pulling spring; 13. Second bevel gear; 14. Floor top plate; 15. Gypsum board ceiling; 16. Fixed nut; 17. Bearing; 18. Inner screw pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to deepen the understanding of the present invention, the following will further describe the present invention in detail with reference to the embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0026] Embodiment 1

[0027] According to Figure 1 、 2 shown, this embodiment proposes a structure for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small, including a fixed sleeve 1, a cylinder 2, a main shaft box 3 and a rotating gun 4. The fixed sleeve 1 is installed below the spray pipe 5. The cylinder 2 is arranged below the fixed sleeve 1. The jacking plate 6 is movably arranged inside the cylinder 2, and the down-pressing spring 7 is arranged above the inside of the cylinder 2. The lower end of the down-pressing spring 7 is connected to the jacking plate 6. The main shaft box 3 is arranged below the cylinder 2, and the rotating main shaft 8 is rotatably arranged inside the main shaft box 3. The upper end of the rotating main shaft 8 is rotatably connected to the jacking plate 6. The first bevel gear 9 is arranged on the rotating main shaft 8, and the lower end of the rotating main shaft 8 extends out of the main shaft box 3 and is installed with a drill bit 10;

[0028] One side of the main spindle box 3 is provided with a slideway 11, and a pull-up spring 12 is arranged in the slideway 11. A second bevel gear 13 adapted to the first bevel gear 9 is movably arranged below in the slideway 11. The pull-up spring 12 is used to pull the second bevel gear 13. The drive shaft of the second bevel gear 13 is connected to the gun turret 4. During use, fixed sleeves 1 with different diameters can be replaced according to the sprinkler pipes 5 with different diameters. Connect the sprinkler pipes 5, use the compression spring 7 to press against the jacking plate 6, press against the rotating main shaft 8 so that the drill bit 10 presses tightly against the gypsum board ceiling 15, and gradually and automatically move downward during the drilling process. The pull-up spring 12 is arranged inside the slideway 11 to pull the second bevel gear 13 upward to press tightly against the first bevel gear 9, so that the two shafts are tightly fitted together, and at the same time ensure the tightness of the connection between the jacking plate 6 and the rotating main shaft 8.

[0029] The sprinkler pipe 5 is installed below the floor ceiling 14 and is connected to the fire pipeline. The lower part of the sprinkler pipe 5 faces the gypsum board ceiling 15. The fixed sleeve 1, the barrel 2, the main spindle box 3 and the sprinkler pipe 5 are on the same vertical line. The drill bit 10 faces the gypsum board ceiling 15 for opening and installing a sprinkler head. It is fastened to the sprinkler pipe 5 through the fixed sleeve 1, and the drive shaft of the second bevel gear 13 is connected through the gun turret 4 to drive rotation, so as to drive the first bevel gear 9 to rotate, drive the rotating main shaft 8 to rotate, drive the drill bit 10 to rotate, press against the jacking plate 6 and the rotating main shaft 8 through the compression spring 7, so that the drill bit 10 presses tightly against the gypsum board ceiling 15, and gradually and automatically move downward during the drilling process to perform vertical drilling.

[0030] The fixed sleeve 1 is provided with a fixing nut 16, and the fixed sleeve 1 is fixed to the sprinkler pipe 5 through the fixing nut 16. The fixed sleeve 1 is fastened to the sprinkler pipe 5 in cooperation with the fixing nut 16, and fixed sleeves 1 with different diameters can be replaced according to the sprinkler pipes 5 with different diameters.

[0031] A bearing 17 is movably arranged below inside the slideway 11. The lower end of the pull-up spring 12 is connected to the bearing 17, and the drive shaft of the second bevel gear 13 is rotationally installed through the bearing 17. The bearing 17 connected to the pull-up spring 12 wraps the drive shaft of the second bevel gear 13 and realizes sliding in the slideway 11.

[0032] The drive shaft of the second bevel gear 13 is connected to the output end of the gun turret 4 by using a cross-shaped male-female docking plug-in port. The cross-shaped male-female docking plug-in port design (similar to a screwdriver and a screw) does not need to be fixedly installed.

[0033] An internal screw tube 18 is arranged at the lower end of the rotating main shaft 8, and the drill bit 10 is connected and fixed to the internal screw tube 18 through a thread. Drill bits 10 with different diameters are directly screwed into the internal screw tube 18 through threads, which is suitable for different hole-opening requirements.

[0034] The cylinder 2 and the main spindle box 3 are separated by a partition plate. The upper end of the rotating main spindle 8 is rotatably connected to the jacking plate 6 through balls. The rotation of the rotating main spindle 8 will not wear the jacking plate 6.

[0035] Embodiment 2

[0036] According to Figure 1 、 2 As shown, this embodiment proposes a method for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small, including the following steps:

[0037] S1: Fasten the fixed sleeve 1 to the sprinkler pipe 5 with the fixed nut 16 to ensure it is in a straight line with the sprinkler pipe 5; Operate based on the position of the sprinkler pipe 5, with accurate positioning;

[0038] S2: Connect the rotating gun 4 to the drive shaft of the second bevel gear 13 to drive the first bevel gear 9 to rotate, drive the rotating main spindle 8 to rotate, and drive the drill bit 10 to rotate;

[0039] S3: Press down the spring 7 to hold the jacking plate 6 and the rotating main spindle 8, so that the drill bit 10 presses tightly against the gypsum board ceiling 15 and gradually and automatically moves downward during drilling to perform drilling; Facilitate operation in a narrow space;

[0040] S4: Pull up the spring 12 to pull the bearing 17, thereby pulling the second bevel gear 13 upward to press tightly against the first bevel gear 9, so that the two are closely fitted to ensure the rotation of the drill bit 10. Improve the reliability during construction.

[0041] In the present invention, the fixed sleeve 1 is fastened to the sprinkler pipe 5, and the drive shaft of the second bevel gear 13 is connected by the rotating gun 4 to drive the rotation, so as to drive the first bevel gear 9 to rotate, drive the rotating main spindle 8 to rotate, and drive the drill bit 10 to rotate. By pressing down the spring 7 to hold the jacking plate 6 and the rotating main spindle 8, the drill bit 10 presses tightly against the gypsum board ceiling 15 and gradually and automatically moves downward during drilling to perform drilling, which is convenient for operation in a narrow space and is operated based on the position of the sprinkler pipe 5 with accurate positioning. And in the present invention, the spring 12 is pulled up to pull the bearing 17 to pull the second bevel gear 13 upward to press tightly against the first bevel gear 9, so that the two are closely fitted to ensure the rotation of the drill bit 10 and improve the reliability during construction.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Structure of opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small, including a fixed sleeve (1), a cylinder (2), a spindle box (3) and a rotating gun (4), characterized in that: The fixed sleeve (1) is installed below the spray pipe (5). The cylinder (2) is arranged below the fixed sleeve (1). An advancing plate (6) is movably arranged inside the cylinder (2). A downward pressure spring (7) is arranged above the interior of the cylinder (2). The downward pressure spring (7) is connected to the advancing plate (6) below. The main spindle box (3) is arranged below the cylinder (2). A rotating main spindle (8) is rotatably arranged inside the main spindle box (3). The upper end of the rotating main spindle (8) is rotatably connected to the advancing plate (6). A first bevel gear (9) is arranged on the rotating main spindle (8). The lower end of the rotating main spindle (8) extends out of the main spindle box (3) and is installed with a drill bit (10). A slideway (11) is arranged on one side of the main spindle box (3). An upward pulling spring (12) is arranged inside the slideway (11). A second bevel gear (13) adapted to the first bevel gear (9) is movably arranged below inside the slideway (11). The upward pulling spring (12) is used to pull the second bevel gear (13). The drive shaft of the second bevel gear (13) is connected to the rotating gun (4). The drive shaft of the second bevel gear (13) is connected to the output end of the rotating gun (4) by a cross-shaped male-female docking plug-in port.

2. The structure for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small according to claim 1, characterized in that: The spray pipe (5) is installed below the floor ceiling (14) and is connected to the fire pipeline. The lower part of the spray pipe (5) faces the gypsum board ceiling (15).

3. The structure for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small according to claim 2, wherein: The fixed sleeve (1), the cylinder (2), the main spindle box (3) and the spray pipe (5) are on the same vertical line. The drill bit (10) faces the gypsum board ceiling (15) for opening and installing a spray head.

4. The structure for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small according to claim 3, characterized in that: A fixing nut (16) is arranged on the fixed sleeve (1). The fixed sleeve (1) is fixed to the spray pipe (5) through the fixing nut (16).

5. The structure for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small according to claim 4, characterized in that: A bearing (17) is movably arranged below inside the slideway (11). The lower end of the upward pulling spring (12) is connected to the bearing (17). The drive shaft of the second bevel gear (13) is rotatably installed through the bearing (17).

6. The structure of the fire sprinkler head opened when the gap between the gypsum board ceiling and the top plate is small according to claim 1, characterized in that: An internal screw tube (18) is arranged at the lower end of the rotating main spindle (8). The drill bit (10) is connected and fixed to the internal screw tube (18) by a thread.

7. The structure for opening a fire sprinkler head when the gap between the gypsum board ceiling and the top plate is small according to claim 6, characterized in that: The cylinder (2) and the main spindle box (3) are separated by a partition plate. The upper end of the rotating main spindle (8) is rotatably connected to the advancing plate (6) through a ball.

8. Method for opening a fire sprinkler when the gap between the gypsum board ceiling and the top plate is small, applying the structure for opening a fire sprinkler when the gap between the gypsum board ceiling and the top plate is small as described in claim 5 above, characterized in that, It includes the following steps: S1: Fasten the fixed sleeve (1) to the spray pipe (5) with the fixing nut (16) to ensure it is on the same straight line as the spray pipe (5). S2: Connect the rotating gun (4) to the drive shaft of the second bevel gear (13), drive the first bevel gear (9) to rotate, drive the rotating main spindle (8) to rotate, and drive the drill bit (10) to rotate. S3: The downward pressure spring (7) presses against the advancing plate (6) and the rotating main spindle (8), so that the drill bit (10) presses tightly against the gypsum board ceiling (15) and gradually and automatically moves downward during the drilling process to drill a hole. S4: The upward pulling spring (12) pulls the bearing (17), thereby pulling the second bevel gear (13) upward to press tightly against the first bevel gear (9) to ensure that the two are closely fitted and ensure the rotation of the drill bit (10).

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