Fire-fighting spray header

Abstract

A fire-fighting spray head comprises a connecting pipe, one end of the connecting pipe is in threaded connection with a fire-fighting pipeline, a spray head is detachably installed at the other end of the connecting pipe, and a valve element is arranged in the middle of an inner cavity of the connecting pipe; the valve element is of an integrated structure, the outer diameter of the valve element is matched with that of the inner cavity, a step part is machined on the wall of the inner cavity to form a lower limit for the valve element, the valve element comprises a vertically-arranged partition plate, obliquely-distributed guide plates are correspondingly arranged on the two sides of the partition plate, the guide plates on the two sides are distributed in a crossed mode, and a flow channel is defined by the guide plates and the partition plate; an upper conical surface is processed at the joint of the upper part of the guide hole and the inner cavity, and a lower conical surface is processed at the opening of the lower part of the guide hole. According to the spray header structure, the movable valve element is arranged in the inner cavity of the connecting pipe to guide the flow direction of water, the valve element can rotate along with water flow, water pressure can be further enhanced, strong spraying force is formed in cooperation with the lower conical surface of the lower portion of the spray head, and the spraying range is wide.

Description

Technical Field

[0001] The utility model relates to a fire sprinkler head. Background Art

[0002] A fire sprinkler head is a component connected to a water supply pipe and used for spraying and diffusing water flow, which is very common in life. In actual use, it is necessary to select sprinkler heads with different spraying ranges according to the use environment. Most of the existing sprinkler heads are of an integral structure, with a fixed spraying range and poor versatility. Summary of the Utility Model

[0003] In view of the deficiencies in the above problems, the utility model provides a fire sprinkler head.

[0004] To achieve the above object, the utility model provides a fire sprinkler head, including a connecting pipe, one end of the connecting pipe is threadedly connected to a fire pipeline, the other end of the connecting pipe is detachably installed with a sprinkler head, and a valve core is built in the middle of the inner cavity of the connecting pipe;

[0005] The valve core is of an integral structure and its outer diameter matches the inner cavity. A step portion is processed on the inner cavity wall to form a lower limit for the valve core. The valve core includes a vertically arranged partition plate, and inclined guide plates are correspondingly arranged on both sides of the partition plate. The guide plates on both sides are crosswise distributed, and a flow channel is formed by enclosing the guide plates and the partition plate;

[0006] A guide hole is processed at the center of the sprinkler head and is communicated with the inner cavity. The inner diameter of the guide hole is smaller than the inner diameter of the lower part of the inner cavity. An upper conical surface is processed at the connection of the upper part of the guide hole and the inner cavity, and a lower conical surface is processed at the opening of the lower part of the guide hole.

[0007] As a further improvement of the utility model, the guide plate is perpendicular to the surface of the partition plate. The upper part of the guide plate is integrally connected to the guide plate. The lower part of the guide plate is suspended and a notch is processed on the side facing the partition plate.

[0008] As a further improvement of the utility model, the upper part of the connecting pipe is processed with a first external thread for connecting the fire pipeline. The lower part of the connecting pipe is processed with a second external thread that matches the internal thread of the upper part of the sprinkler head. An external hexagonal positioning portion is processed in the middle of the connecting pipe.

[0009] As a further improvement of the utility model, flat sides are symmetrically processed on the outer peripheral surface of the lower part of the sprinkler head.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The sprinkler head structure guides the flow of water by setting a movable valve core in the inner cavity of the connecting pipe. The valve core rotates synchronously with the water flow. The rotating valve core cooperates with the water flow to further increase the water flow speed and enhance the water pressure. In conjunction with the lower cone surface at the bottom of the sprinkler head, a strong spray force is formed, and the spray range is wide.

[0012] 2. The nozzle and the connecting pipe are detachably connected through a threaded connection structure. The spray range is determined by the inclination angle of the lower cone surface of the nozzle. The corresponding type of nozzle can be selected according to the on-site environment, with good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of a fire sprinkler head according to the present invention;

[0014] Figure 2 is a cross-sectional view of the connecting pipe 1;

[0015] Figure 3 is a top view of the connecting pipe 1;

[0016] Figure 4 is a cross-sectional view of the nozzle 2;

[0017] Figure 5 It is a bottom view of the nozzle 2;

[0018] Figure 6 is a side view of the nozzle 2;

[0019] Figure 7 The main view of the valve core 3

[0020] Figure 8 It is a top view of the valve core 3.

[0021] In the figure: 1. Connecting pipe; 11. Inner cavity; 111. Step portion; 12. First external thread; 13. External hexagonal positioning portion; 14. Second external thread; 2. Nozzle; 21. Internal thread; 22. Upper conical surface; 23. Guide hole; 24. Lower conical surface; 25. Flat square; 3. Valve core; 31. Partition; 32. Guide plate; 33. Notch. DETAILED DESCRIPTION

[0022] like Figure 1 As shown, a fire sprinkler head described in the utility model includes a connecting pipe 1, one end of the connecting pipe 1 is threadedly connected to the fire pipe, and the other end of the connecting pipe 1 is detachably mounted with a sprinkler head 2. A valve core 3 is built into the middle of the inner cavity 11 of the connecting pipe 1. A first external thread 12 is processed on the upper part of the connecting pipe 1 for connecting to the fire pipe, a second external thread 14 is processed on the lower part of the connecting pipe 1 to match the internal thread 21 on the upper part of the sprinkler head 2, and an external hexagonal positioning portion 13 is processed in the middle of the connecting pipe 1;

[0023] The valve core 3 is of an integral structure and its outer diameter matches the inner cavity 11. A step portion 111 is machined on the wall of the inner cavity 11 to form a lower limit for the valve core 3. The valve core 3 includes a vertically arranged partition plate 31. Diagonal guide plates 32 are correspondingly arranged on both sides of the partition plate 31. The guide plates 32 on both sides are cross - distributed. The guide plates 32 and the partition plate 31 enclose a flow channel. The guide plates 32 are perpendicular to the surface of the partition plate 31. The upper part of the guide plate 32 is integrally connected to the guide plate 32. The lower part of the guide plate 32 is suspended and a notch 33 is machined on the side facing the partition plate 31;

[0024] A guide hole 23 is machined at the center of the spray head 2 and is connected to the inner cavity 11. The inner diameter of the guide hole 23 is smaller than the inner diameter of the lower part of the inner cavity 11. An upper conical surface 22 is machined at the connection between the upper part of the guide hole 23 and the inner cavity 11. A lower conical surface 24 is machined at the opening of the lower part of the guide hole 23. Flat squares 25 are symmetrically machined on the outer peripheral surface of the lower part of the spray head 2.

[0025] This spray head structure guides the water flow by arranging a movable valve core in the inner cavity of the connecting pipe. The valve core will rotate synchronously with the water flow. The rotating valve core and the water flow cooperate with each other to further increase the water flow speed and enhance the water pressure. It cooperates with the lower conical surface at the lower part of the spray head to form a strong spraying force and has a wide spraying range. The spray head and the connecting pipe are detachably connected through a threaded connection structure. The spraying range is determined by the inclination angle of the lower conical surface of the spray head, and corresponding models of spray heads can be selected according to the on - site environment, with good versatility.

[0026] During specific use, for the convenience of understanding the present utility model, it is described in conjunction with the accompanying drawings;

[0027] During use, first, select a spray head with a corresponding lower conical surface according to the on - site environment. The spraying range is determined by the inclination angle of the lower conical surface of the spray head. Then place the valve core in the inner cavity of the connecting pipe. A step portion is provided on the inner cavity wall to form a lower limit for the valve core. Then thread - connect the connecting pipe to the fire pipeline. When the water flow enters the inner cavity of the connecting pipe along the fire pipeline, at the valve core, the partition plate divides the water flow into two strands. The two strands of water flow move down along the flow channels on both sides of the partition plate to the lower part of the inner cavity. During the process of the water flow moving down, it pushes the valve core to rotate. The rotation of the valve core further increases the water flow speed, and the water pressure in the inner cavity increases accordingly. The water flow in the lower part of the inner cavity continues to flow into the guide hole of the spray head along the lower conical surface and is sprayed along the lower conical surface at the lower part of the guide hole.

[0028] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fire sprinkler head, characterized in that: It includes a connecting pipe (1), one end of the connecting pipe (1) is threadedly connected to a fire pipeline, the other end of the connecting pipe (1) is detachably installed with a spray head (2), and a valve core (3) is built in the middle of the inner cavity (11) of the connecting pipe (1); The valve core (3) is of an integral structure and its outer diameter matches that of the inner cavity (11). A step portion (111) is machined on the wall of the inner cavity (11) to form a lower limit for the valve core (3). The valve core (3) includes a vertically arranged partition plate (31), and inclined guide plates (32) are correspondingly arranged on both sides of the partition plate (31). The guide plates (32) on both sides are cross - distributed, and a flow channel is formed by enclosing the guide plates (32) and the partition plate (31); A guide hole (23) is machined at the center of the spray head (2) and is communicated with the inner cavity (11). The inner diameter of the guide hole (23) is smaller than the inner diameter of the lower part of the inner cavity (11). An upper conical surface (22) is machined at the connection of the upper part of the guide hole (23) and the inner cavity (11), and a lower conical surface (24) is machined at the opening of the lower part of the guide hole (23).

2. The fire sprinkler according to claim 1, characterized in that: The guide plate (32) is perpendicular to the surface of the partition plate (31). The upper part of the guide plate (32) is integrally connected to the guide plate (32). The lower part of the guide plate (32) is suspended and a notch (33) is machined on the side facing the partition plate (31).

3. A fire sprinkler head according to claim 1, characterized in that: The upper part of the connecting pipe (1) is machined with a first external thread (12) for connecting the fire pipeline. The lower part of the connecting pipe (1) is machined with a second external thread (14) that matches the internal thread (21) on the upper part of the spray head (2). An external hexagonal positioning portion (13) is machined in the middle of the connecting pipe (1).

4. A fire sprinkler according to claim 1, characterized in that: Flat squares (25) are symmetrically machined on the outer peripheral surface of the lower part of the spray head (2).

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