Efficient and easy-to-maintain rotary fire-fighting lower upright spray head

Abstract

An efficient and easy-to-maintain rotary fire-fighting lower upright spray head comprises a rotary splashing disc 2, the rotary splashing disc 2 is arranged on a fire-fighting short vertical pipe 1 in a sleeving mode, the lower face of the rotary splashing disc 2 is movably supported through the upper surface of a supporting nut 3 screwed to the top end of the fire-fighting short vertical pipe, and the lower end of a right support 201 and the lower end of a left support 202 of the rotary splashing disc 2 are fixedly connected with a splashing disc 205. A splash box drainage groove 203 and a splash box automatic stopper 204 are arranged on the splash box 205, an adjusting screw 7 is arranged in the center of the splash box, a sealing adjusting rubber ring 4 and a water baffle 5 are arranged between the supporting nut 3 and the fire-fighting short vertical pipe 1, the water baffle 5 is supported upwards by a temperature sensing glass bead 6, and the temperature sensing glass bead is supported by the adjusting screw 7 on the splash box 5. The stress of the temperature sensing glass bead 6 is adjusted through the synergistic effect of the adjusting screw 7 and the sealing adjusting rubber ring 4.

Description

Technical Field

[0001] The present invention relates to the technical field of fire sprinklers, and in particular to a highly efficient and easy-to-maintain rotary fire sprinkler for downward vertical installation. Background Art

[0002] A fire sprinkler is a key component of an automatic sprinkler fire extinguishing device designed for various indoor and outdoor office buildings, commercial streets, factories, warehouses, shopping malls and other places. It realizes uniform water spraying for fire extinguishing by the impact of water flow on the deflector. When the temperature in the installation area rises to a specific threshold due to a fire, the fusible alloy in the sprinkler will melt or the glass bead will burst, thus automatically opening the sprinkler. Under the action of the fire-fighting pipe network pressure, the water flows through the deflector below the sprinkler and sprays evenly in all directions, effectively controlling the fire and extinguishing it. However, the defect is that since the deflector itself is fixed, the water mist formed after the water flow impacts the deflector has a certain spraying blind area, which has an adverse impact on efficient fire extinguishing, and the water consumption increases, posing a serious threat to the lives and property safety of people. Summary of the Invention

[0003] The present invention provides a highly efficient and easy-to-maintain rotary fire sprinkler for downward vertical installation to overcome the drawback that the fixed deflector of the existing fire sprinkler leads to the existence of a spraying blind area, resulting in a reduction in the fire extinguishing and fire control effects.

[0004] The technical solution of the present invention is as follows: A highly efficient and easy-to-maintain rotary fire sprinkler for downward vertical installation includes: a rotary deflector 2, which is sleeved on a fire-fighting short riser 1 and is movably supported by the upper surface of a support nut 3 screwed onto the top of the fire-fighting short riser. The lower ends of the right bracket 201 and the left bracket 202 of the rotary deflector 2 are fixedly connected with a deflector 205. The deflector 205 is provided with a deflector drain groove 203 and a deflector automatic baffle 204. An adjusting screw 7 is arranged at the central position of the deflector. A sealing adjustment rubber ring 4 and a water baffle 5 are arranged between the support nut 3 and the fire-fighting short riser 1. The water baffle 5 is supported upward by a heat-sensitive glass bead 6. The heat-sensitive glass bead is supported by the adjusting screw 7 on the deflector 5. The force received by the heat-sensitive glass bead 6 is adjusted by the synergistic action of the adjusting screw 7 and the sealing adjustment rubber ring 4.

[0005] Furthermore, when the fire sprinkler does not act and the heat-sensitive glass bead is intact and supported, the fire-fighting pressure water is sealed in the fire-fighting short riser by the adjusting screw 7, the heat-sensitive glass bead 6, the water baffle 5 and the sealing adjustment rubber ring on the deflector 205 together.

[0006] Furthermore, when the fire sprinkler is triggered, the heat-sensitive glass bead 6 bursts, and the pressurized water in the fire-fighting short vertical pipe impacts downward, pushing open the water baffle 5 and further impacting the splash plate 205. Part of the pressurized water directly drains downward through the drainage grooves of the splash plate for fire extinguishing, and part or simultaneously impacts the automatic splash plate 204. The automatic splash plate 204 rotates under the impact of the water flow. The rotation of the automatic splash plate 204 drives the entire rotation of the splash plate 2, and the drainage grooves 203 of the splash plate rotate simultaneously, achieving an evenly distributed and fully covered spraying effect of the water flow.

[0007] Furthermore, the support nut 3 has a limit stop inside, and the limit stop restricts the degree to which the support nut screws deeper into the fire-fighting vertical pipe.

[0008] Furthermore, after the sprinkler has been used for spraying, only the heat-sensitive glass bead 6, the sealing adjustment rubber ring 4, and the water baffle 5 need to be replaced, which greatly reduces the replacement cost and improves the replacement efficiency.

[0009] Furthermore, the heat-sensitive glass bead 6 can also be replaced with a heat-sensitive fusing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the main structure of the present invention; Figure 2 is a top view of the rotary splash plate of the present invention; Reference numerals and names in the figure: 1 - fire-fighting short vertical pipe, 2 - rotary splash plate, 201 - right bracket, 202 - left bracket, 203 - drainage grooves of the splash plate, 204 - automatic drive of the splash plate, 205 - splash plate, 3 - support nut, 4 - sealing adjustment rubber ring, 5 - water baffle, 6 - heat-sensitive glass bead, 7 - adjusting screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0012] The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0013] An efficient and easily maintainable rotary fire upright sprinkler head, comprising: a rotary splash plate 2, the rotary splash plate is sleeved on the fire short riser 1, and the lower part is movably supported by the upper surface of the support nut 3 screwed on the top of the fire short riser. The lower ends of the right bracket 201 and the left bracket 202 of the rotary splash plate 2 are fixedly connected with a splash plate 205. There are a splash plate drain groove 203 and a splash plate automatic baffle 204 on the splash plate 205. There is an adjusting screw 7 at the center position of the splash plate. There is a sealing adjustment rubber ring 4 and a water baffle 5 between the support nut 3 and the fire short riser 1. The water baffle 5 is pushed upward by a heat-sensitive glass bead 6. The heat-sensitive glass bead is supported by the adjusting screw 7 on the splash plate 5. The force on the heat-sensitive glass bead 6 is adjusted by the cooperative action of the adjusting screw 7 and the sealing adjustment rubber ring 4.

[0014] Furthermore, when the fire sprinkler head does not act and the heat-sensitive glass bead is intact and supported, the fire pressure water is sealed in the fire short riser by the adjusting screw 7, the heat-sensitive glass bead 6, the water baffle 5 and the sealing adjustment rubber ring on the splash plate 5 together.

[0015] Furthermore, when the fire sprinkler head is triggered, the heat-sensitive glass bead 6 bursts, and the pressure water in the fire short riser impacts downward, pushing open the water baffle 5 and further impacting the splash plate 205. Part of the pressure water directly passes through the splash plate drain groove downward for fire extinguishing, and part or at the same time impacts the splash plate automatic baffle 204. The splash plate automatic baffle 204 rotates under the impact of the water flow. The rotation of the splash plate automatic baffle 204 drives the splash plate 2 to rotate as a whole, and the splash plate drain groove 203 rotates accordingly, achieving an evenly distributed and fully covered spraying effect of the water flow.

[0016] Furthermore, there is a limit stop inside the support nut 3, and the limit stop restricts the degree to which the support nut screws into the fire riser.

[0017] Furthermore, after the sprinkler head has been sprayed, only the heat-sensitive glass bead 6, the sealing adjustment rubber ring 4 and the water baffle 5 need to be replaced, which greatly reduces the replacement cost and improves the replacement efficiency.

[0018] Furthermore, the heat-sensitive glass bead 6 can also be replaced by a heat-sensitive fusing device.

[0019] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present application, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present application type. drawn out therefrom are still within the protection scope of the present application type.

Claims

1. An efficient and easy-to-maintain rotary fire-fighting vertical sprinkler, characterized in that: include: A rotating water splash plate (2) is sleeved on a short fire fighting pipe (1) and is movably supported by the upper surface of a support nut (3) screwed on the top of the short fire fighting pipe. The lower ends of the right bracket (201) and the left bracket (202) of the rotating water splash plate (2) are fixedly connected with a water splash plate (205). The water splash plate (205) is provided with a water splash plate drainage groove (203) and a water splash plate automatic stop (204). An adjusting screw (7) is provided at the center of the water splash plate. A sealing adjustment rubber ring (4) and a water baffle (5) are provided between the support nut (3) and the short fire fighting pipe (1). The water baffle (5) is supported upward by a temperature-sensitive glass bead (6). The temperature-sensitive glass bead (6) is supported upward by the adjusting screw (7) on the water splash plate (5). The force applied to the temperature-sensitive glass bead (6) is adjusted by the coordinated action of the adjusting screw (7) and the sealing adjustment rubber ring (4).

2. Furthermore, when the fire sprinkler does not operate and the trigger temperature-sensitive glass beads (6) are intactly supported, the fire pressure water is sealed in the fire short riser (1) by the adjusting screw (7) on the splash plate (205), the temperature-sensitive glass beads (6), the water baffle (5) and the sealing adjustment rubber ring (4).

3. A highly efficient and easy-to-maintain rotary fire-fighting vertical sprinkler according to claim 1, characterized in that: When the fire sprinkler is triggered, the temperature-sensitive glass beads (6) burst, and the pressure water in the fire short riser (1) impacts downward, breaks the water baffle (5), and further impacts the splash plate (205). The pressure water partially passes through the splash plate (205) and the splash plate drainage groove to extinguish the fire, and partially or simultaneously impacts the splash plate automatic stopper (204). The splash plate automatic stopper (204) rotates under the impact of the water flow. The rotation of the splash plate automatic stopper (204) drives the splash plate (2) to rotate as a whole, and the splash plate drainage groove (203) rotates simultaneously, so as to achieve a full coverage spraying effect with uniform water flow distribution.

4. A highly efficient and easy-to-maintain rotary fire-fighting vertical sprinkler according to claim 1, characterized in that: The support nut (3) has a limit stop inside, and the limit stop limits the extent to which the support nut can be screwed into the fire riser.

5. A highly efficient and easy-to-maintain rotary fire-fighting vertical sprinkler according to claim 1, characterized in that: After the nozzle has been sprayed, only the temperature-sensitive glass beads (6), the sealing adjustment rubber ring (4) and the water baffle (5) need to be replaced, which greatly reduces the replacement cost and improves the replacement efficiency.

6. A highly efficient and easy-to-maintain rotary fire-fighting vertical sprinkler according to claim 1, characterized in that: The temperature-sensitive glass bead (6) may also be replaced by a temperature-sensitive fuse.

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