Upright sprinkler head

Abstract

The utility model discloses an upright type sprinkler head which comprises a base plate, the bottom of the base plate is fixedly connected with a threaded connector, the two sides of the top of the base plate are fixedly connected with supports, the tops of the supports are fixedly connected with limiting pipes, the tops of the limiting pipes are fixedly connected with a sprinkling disc, and an inner cavity of the base plate is provided with an installation hole. An annular groove is formed in the inner cavity of the chassis and located on the outer side of the mounting hole, a gear ring is movably connected to an inner cavity of the annular groove through a bearing, a driving gear is meshed with the surface of the gear ring, and a transmission shaft is fixedly connected to the top of the driving gear; the top of the transmission shaft penetrates to the top of the chassis and is movably connected with the surface of the chassis through a bearing, and an inner cavity of the mounting hole is movably connected with a driven gear through a bearing. By the adoption of the equipment, recycling of the valve element can be achieved, resources are saved, the purchase cost is reduced, and great convenience is brought to fire fighting work.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to an upright sprinkler head. Background Art

[0002] Fire sprinkler heads are used in fire sprinkler systems. When a fire occurs, water is sprayed out through the sprinkler head splash plate to extinguish the fire. Currently, they are divided into pendent sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, side wall sprinkler heads, etc. Upright sprinkler heads are installed upright on the water supply branch pipe. The sprinkler shape is a parabola, and 80-100% of the total water volume is sprayed downwards. At the same time, a part of it is sprayed toward the ceiling. It is suitable for installation in places with many moving objects and easy collisions, such as warehouses. It can also be concealed on the roof of the room ceiling mezzanine to protect the ceiling with more flammable materials.

[0003] The valve cores in the inner cavities of the sprinkler heads currently on the market are basically disposable. In the event of a fire, the valve core will be directly blown away, and a new valve core will need to be installed later, which will cause a waste of resources. Therefore, it is necessary to design an upright sprinkler head with a recyclable valve core. Utility Model Content

[0004] The purpose of the utility model is to provide an upright sprinkler head, which has the advantage of being easy to use and solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an upright sprinkler head, comprising a chassis, the bottom of the chassis is fixedly connected with a threaded joint, the top of the chassis is fixedly connected with brackets on both sides, the top of the bracket is fixedly connected with a limiting tube, the top of the limiting tube is fixedly connected with a sprinkler plate, the inner cavity of the chassis is provided with a mounting hole, the inner cavity of the chassis and the outer side of the mounting hole is provided with an annular groove, the inner cavity of the annular groove is movably connected with a gear ring through a bearing, the surface of the gear ring is meshed with a driving gear, the top of the driving gear is fixedly connected with a transmission shaft, the The top of the transmission shaft passes through the top of the chassis and is movably connected to the surface of the chassis through a bearing. The inner cavity of the mounting hole is movably connected to a driven gear through a bearing. The driven gear is meshed with a gear ring. The top of the driven gear is fixedly connected to a winding disk. The top of the winding disk is movably connected to the inner wall of the mounting hole through a bearing. A steel cable is wound around the surface of the winding disk. One end of the steel cable passes through the top of the chassis and is fixedly connected to a valve core. The valve core is clamped in the inner cavity of the threaded joint. A heat-sensitive glass rod is provided on the top of the valve core. The top of the heat-sensitive glass rod is in contact with the inner cavity of the limit tube.

[0006] Preferably, a water spray hole is provided on the top of the water sprinkling plate, and the water spray hole is connected to the limiting pipe.

[0007] Preferably, a hand wheel is fixedly connected to the top of the transmission shaft, and the surface of the hand wheel is provided with anti-slip grooves.

[0008] Preferably, a groove is formed on the top of the valve core, and the bottom of the heat-sensitive glass rod is embedded in the inner cavity of the groove.

[0009] Preferably, a through hole for passing the steel cable is opened on the top of the chassis, and the through hole is connected to the mounting hole.

[0010] Preferably, the valve core is made of high temperature resistant rubber, and a high temperature resistant coating is sprayed on its surface.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model drives the transmission shaft to rotate by rotating the hand wheel, the transmission shaft drives the driving gear to rotate, the driving gear drives the gear ring to rotate, the gear ring drives the driven gear to rotate, the driven gear drives the winding disk to rotate, the winding disk winds up the steel cable, and then the valve core can be driven to move downward. After the steel cable is completely wound up, the valve core can be pressed into the inner cavity of the threaded joint. By adopting this equipment, the valve core can be recycled and reused, which not only saves resources, but also reduces procurement costs, bringing great convenience to firefighting work.

[0013] 2. The utility model can conveniently spray water toward the ceiling by arranging a water spray hole, can conveniently rotate the transmission shaft by arranging a hand wheel, can conveniently fix the bottom of the heat-sensitive glass rod by arranging a groove, can facilitate the movement of the steel cable by arranging a through hole, and can improve the high temperature resistance and service life of the valve core by adopting a valve core made of high temperature resistant rubber and spraying a high temperature resistant coating on its surface. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged local structure at point A in the middle.

[0017] In the figure: 1. chassis; 2. threaded joint; 3. bracket; 4. limit tube; 5. sprinkler plate; 6. mounting hole; 7. annular groove; 8. gear ring; 9. driving gear; 10. transmission shaft; 11. driven gear; 12. winding disk; 13. steel cable; 14. valve core; 15. heat-sensitive glass rod; 16. water spray hole; 17. hand wheel; 18. through hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The components of the present invention are all common standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0020] See also Figure 1-3 A vertical sprinkler head includes a chassis 1, a threaded joint 2 is fixedly connected to the bottom of the chassis 1, brackets 3 are fixedly connected to both sides of the top of the chassis 1, a limit tube 4 is fixedly connected to the top of the bracket 3, a sprinkler plate 5 is fixedly connected to the top of the limit tube 4, a mounting hole 6 is provided in the inner cavity of the chassis 1, an annular groove 7 is provided in the inner cavity of the chassis 1 and is located outside the mounting hole 6, a gear ring 8 is movably connected to the inner cavity of the annular groove 7 through a bearing, a driving gear 9 is meshed on the surface of the gear ring 8, a transmission shaft 10 is fixedly connected to the top of the driving gear 9, the top of the transmission shaft 10 passes through the top of the chassis 1 and is movably connected to the surface of the chassis 1 through a bearing, and the inner cavity of the mounting hole 6 is movably connected to the inner cavity of the annular groove 7 through a bearing. A driven gear 11 is dynamically connected, and the driven gear 11 is meshed with the gear ring 8. A winding disk 12 is fixedly connected to the top of the driven gear 11. The top of the winding disk 12 is movably connected to the inner wall of the mounting hole 6 through a bearing. A steel cable 13 is wound around the surface of the winding disk 12. One end of the steel cable 13 passes through the top of the chassis 1 and is fixedly connected to a valve core 14. The valve core 14 is clamped in the inner cavity of the threaded joint 2. A heat-sensitive glass rod 15 is provided on the top of the valve core 14. The top of the heat-sensitive glass rod 15 contacts with the inner cavity of the limit tube 4. By adopting the equipment, the valve core 14 can be recycled and reused, which not only saves resources, but also reduces procurement costs, bringing great convenience to firefighting work.

[0021] A water spray hole 16 is provided on the top of the water spray tray 5, and the water spray hole 16 is connected to the limiting pipe 4. By providing the water spray hole 16, water can be sprayed toward the ceiling conveniently.

[0022] A hand wheel 17 is fixedly connected to the top of the transmission shaft 10 , and the surface of the hand wheel 17 is provided with anti-skid grooves. By providing the hand wheel 17 , the transmission shaft 10 can be easily rotated.

[0023] A groove is formed at the top of the valve core 14 , and the bottom of the heat-sensitive glass rod 15 is embedded in the inner cavity of the groove. By providing the groove, the bottom of the heat-sensitive glass rod 15 can be easily fixed.

[0024] A through hole 18 is provided on the top of the chassis 1 for the steel cable 13 to pass through, and the through hole 18 is communicated with the mounting hole 6 . The through hole 18 can facilitate the movement of the steel cable 13 .

[0025] The valve core 14 is made of high temperature resistant rubber and a high temperature resistant coating is sprayed on its surface. By adopting the valve core 14 made of high temperature resistant rubber and spraying a high temperature resistant coating on its surface, the high temperature resistance and service life of the valve core 14 can be improved.

[0026] When in use, the transmission shaft 10 is driven to rotate by turning the hand wheel 17, the transmission shaft 10 drives the driving gear 9 to rotate, the driving gear 9 drives the ring gear 8 to rotate, the ring gear 8 drives the driven gear 11 to rotate, the driven gear 11 drives the winding disk 12 to rotate, the winding disk 12 winds up the steel cable 13, and then the valve core 14 can be driven to move downward. After the steel cable 13 is completely wound up, the valve core 14 can be pressed into the inner cavity of the threaded joint 2.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An upright sprinkler head, comprising a chassis (1), characterized in that: The bottom of the chassis (1) is fixedly connected to a threaded joint (2), the top of the chassis (1) is fixedly connected to brackets (3) on both sides, the top of the bracket (3) is fixedly connected to a limit tube (4), the top of the limit tube (4) is fixedly connected to a sprinkler plate (5), the inner cavity of the chassis (1) is provided with a mounting hole (6), the inner cavity of the chassis (1) is provided with an annular groove (7) located outside the mounting hole (6), the inner cavity of the annular groove (7) is movably connected to a gear ring (8) through a bearing, the surface of the gear ring (8) is meshed with a driving gear (9), the top of the driving gear (9) is fixedly connected to a transmission shaft (10), the top of the transmission shaft (10) passes through the top of the chassis (1) and is connected to the chassis through a bearing. The inner cavity of the mounting hole (6) is movably connected to a driven gear (11) through a bearing, the driven gear (11) is meshed with a gear ring (8), the top of the driven gear (11) is fixedly connected to a winding disk (12), the top of the winding disk (12) is movably connected to the inner wall of the mounting hole (6) through a bearing, a steel cable (13) is wound around the surface of the winding disk (12), one end of the steel cable (13) passes through the top of the chassis (1) and is fixedly connected to a valve core (14), the valve core (14) is clamped in the inner cavity of the threaded joint (2), a heat-sensitive glass rod (15) is arranged on the top of the valve core (14), and the top of the heat-sensitive glass rod (15) contacts the inner cavity of the limit tube (4).

2. The upright sprinkler according to claim 1, characterized in that: A water spray hole (16) is provided on the top of the water sprinkling plate (5), and the water spray hole (16) is communicated with the limiting pipe (4).

3. The upright sprinkler according to claim 1, characterized in that: A hand wheel (17) is fixedly connected to the top of the transmission shaft (10), and the surface of the hand wheel (17) is provided with anti-slip grooves.

4. The upright sprinkler head according to claim 1, characterized in that: The top of the valve core (14) is provided with a groove, and the bottom of the heat-sensitive glass rod (15) is embedded in the inner cavity of the groove.

5. The upright sprinkler head according to claim 1, characterized in that: A through hole (18) is provided on the top of the chassis (1) for passing the steel cable (13), and the through hole (18) is connected to the mounting hole (6).

6. The upright sprinkler head according to claim 1, characterized in that: The valve core (14) is made of high temperature resistant rubber, and a high temperature resistant coating is sprayed on its surface.

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