High-reliability self-cleaning type fire sprinkler

Abstract

The utility model relates to the related field of fire-fighting sprayers, in particular to a high-reliability self-cleaning fire-fighting sprayer which comprises a connector, a connecting seat, a frame, a nozzle, a glass ball, an auxiliary mechanism and the like. The auxiliary mechanism is arranged in the connector, impurities in fire fighting water can be filtered out through the arc-shaped filter screen, the arc-shaped filter screen rubs with the scraper blade when rotating, the scraper blade scrapes the impurities on the arc-shaped filter screen, the arc-shaped filter screen is prevented from being blocked by the impurities, self-cleaning of the arc-shaped filter screen is achieved, and the service life of the fire fighting water is prolonged. Impact between impurities and the nozzle is reduced, nozzle abrasion is reduced, the service life of the nozzle is prolonged, meanwhile, the situation that the interior of the fire sprinkler is blocked is reduced, and stable and reliable water spraying and fire extinguishing of the fire sprinkler are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of fire sprinkler heads, in particular to a high-reliability self-cleaning fire sprinkler head. Background Art

[0002] Fire sprinkler is a kind of sprinkler 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 to extinguish fire according to the designed spraying shape and flow rate. Fire sprinkler is an important component of the sprinkler system.

[0003] When the fire sprinkler is in use, since the fire water source may contain large particles of impurities, these large particles of impurities will be sprayed outward with the fire sprinkler. When the large particles of impurities are sprayed out, they will collide with the nozzle. Long-term use can easily cause nozzle wear, thereby reducing the service life of the nozzle. When there are too many impurities, the nozzle is prone to internal blockage, which is not conducive to stable and reliable water spraying. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a high-reliability self-cleaning fire sprinkler to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-reliability self-cleaning fire sprinkler, comprising a connecting head, a connecting seat installed at the bottom of the connecting head, a frame fixedly mounted at the edge of the bottom end surface of the connecting seat, a nozzle arranged at the bottom of the frame, a glass ball arranged between the bottom of the connecting seat and the bottom of the inner side of the frame, and an auxiliary mechanism arranged in the connecting head, the auxiliary mechanism comprising an arc filter movably installed in the connecting head, a connecting rod installed in the middle of the top end surface of the arc filter, and a scraper fitted with the top end surface of the arc filter and installed on the inner wall of the connecting head;

[0006] The movable sleeve on the connecting rod is provided with a shaft sleeve, and a plurality of inclined blades are installed on the outer top of the connecting rod, and the shaft sleeve is connected to the inner side wall of the connecting head through a support rod installed on the side surface;

[0007] The scraper is connected to the inner side of the opening, the opening passes through the inner and outer end surfaces of the connector, and the opening is connected to the inner side of the collection box installed on the side surface of the connector.

[0008] Preferably, the blades on the top of the outer side of the connecting rod are distributed at equal intervals along the circumference of the connecting rod.

[0009] Preferably, a baffle is installed inside the collection box, and the baffle extends obliquely downward away from one end of the collection box.

[0010] Preferably, a reflux hole is provided on the connector, the reflux hole is connected with the inner side of the collecting box and the inner side of the connector, and the aperture of the reflux hole is smaller than the aperture of the mesh on the arc-shaped filter screen.

[0011] Preferably, the angle formed by the width direction of the blade and the horizontal plane is 30° to 50°.

[0012] Preferably, a support rod is installed at each of the front and rear ends of the sleeve, and one end of the two support rods away from the sleeve is connected to the inner wall of the connector.

[0013] Beneficial effects of the utility model:

[0014] The utility model arranges an auxiliary mechanism in the connecting head, and the arc-shaped filter screen can filter out impurities in the fire-fighting water, and the arc-shaped filter screen rubs against the scraper when rotating, and the scraper scrapes off the impurities on the arc-shaped filter screen to prevent the impurities from clogging the arc-shaped filter screen, thereby realizing self-cleaning of the arc-shaped filter screen, reducing the impact of impurities on the nozzle, reducing the wear of the nozzle, and prolonging the service life of the nozzle. At the same time, it also reduces the occurrence of internal blockage of the fire-fighting sprinkler head, which is conducive to stable and reliable water spraying and fire extinguishing of the fire-fighting sprinkler head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a side cross-sectional structural schematic diagram of the auxiliary mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the blade connection structure of the utility model from a top view;

[0018] Figure 4 It is a front view structural diagram of a blade of the utility model.

[0019] Among them: connector -1, connector base -2, frame -3, nozzle -4, glass ball -5, auxiliary mechanism -6, arc filter screen -61, connecting rod -62, sleeve -63, support rod -64, scraper -65, opening -66, collection box -67, baffle -68, reflux hole -69, blade -610. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0021] like Figure 1 As shown, the utility model provides a high-reliability self-cleaning fire sprinkler, comprising a connector 1, a connector seat 2 fixedly mounted at the bottom of the connector 1, a frame 3 fixedly mounted at the edge of the bottom end surface of the connector seat 2, a nozzle 4 arranged at the bottom of the frame 3, and a glass ball 5 is arranged between the bottom of the connector seat 2 and the inner bottom of the frame 3;

[0022] When in use, the connector 1 is fixedly installed at an appropriate fire-fighting point, and the water inlet end of the connector 1 is connected to a fire-fighting water source;

[0023] When a fire occurs, the environment rises steadily, and the pre-filled liquid in the glass ball 5 expands due to heat. When the liquid expands to a certain extent, the glass ball 5 breaks and opens the valve core. At this time, the fire water in the connecting head 1 passes through the connecting seat 2 and sprays downward. The sprayed fire water enters the nozzle 4 and then spreads outward to extinguish the fire.

[0024] like Figures 2 to 4 As shown, the present embodiment also includes an auxiliary mechanism 6 disposed in the connector 1, the auxiliary mechanism 6 includes an arc-shaped filter screen 61 horizontally rotatably mounted in the connector 1, a connecting rod 62 mounted in the middle of the top surface of the arc-shaped filter screen 61, and a scraper 65 that fits the top surface of the arc-shaped filter screen 61 and is mounted on the inner wall of the connector 1. The arc-shaped filter screen 61 rubs against the scraper 65 when rotating, and the scraper 65 scrapes off impurities on the arc-shaped filter screen 61.

[0025] A sleeve 63 is provided on the movable sleeve of the connecting rod 62. The connecting rod 62 can rotate horizontally along the inner side of the sleeve 63. The sleeve 63 provides support for the connecting rod 62. A plurality of inclined blades 610 are installed on the outer top of the connecting rod 62. The inclined blades 610 are driven to rotate by the impact of water flow, and the arc filter screen 61 is driven to rotate synchronously through the connecting rod 62. The sleeve 63 is connected to the inner wall of the connector 1 through a support rod 64 installed on the side surface.

[0026] The scraper 65 is connected to the inner side of the opening 66. The opening 66 penetrates the inner and outer end surfaces of the connector 1, and the opening 66 is connected to the inner side of the collecting box 67 installed on the side surface of the connector 1, so as to guide the impurities on the arc filter 61 through the opening 66 and store them in the collecting box 67.

[0027] The blades 610 on the top of the outer side of the connecting rod 62 are evenly spaced along the circumference of the connecting rod 62, so that the blades 610 can be impacted by the water flow to drive the connecting rod 62 to rotate smoothly.

[0028] In this embodiment, a baffle 68 is installed inside the collection box 67. The baffle 68 extends downward at an angle away from one end of the collection box 67. The baffle 68 blocks impurities in the collection box 67 to reduce the impurities from entering the connector 1 again.

[0029] In this embodiment, a reflux hole 69 is provided on the connector 1, and the reflux hole 69 is connected with the inner side of the collection box 67 and the inner side of the connector 1. The aperture of the reflux hole 69 is smaller than the aperture of the mesh on the arc-shaped filter 61, so that the water in the collection box 67 can be introduced into the connector 1 again through the reflux hole 69, thereby reducing the accumulation of water in the collection box 67.

[0030] In this embodiment, the angle formed between the width direction of the blade 610 and the horizontal plane is 45°, so that the blade 610 is impacted by the water flow and drives the connecting rod 62 to rotate;

[0031] Among them, a support rod 64 is installed at each of the front and rear ends of the sleeve 63, and the ends of the two support rods 64 away from the sleeve 63 are connected to the inner wall of the connector 1, thereby improving the stability of the sleeve 63;

[0032] When in use, the arc filter 61 filters impurities in the fire water to reduce the damage caused by impurities to the inside of the nozzle, which is beneficial to the fire nozzle to spray fire water stably and reliably, and the fire water in the connecting head 1 impacts the blade 610 when flowing, and the blade 610 is impacted to drive the connecting rod 62 to rotate, and the connecting rod 62 drives the arc filter 61 to rotate, and the arc filter 61 rotates and rubs against the scraper 65, and the scraper 65 scrapes the impurities on the arc filter 61 to realize the self-cleaning of the arc filter 61, and the scraped impurities roll along the top of the arc filter 61 into the opening 66, and the impurities pass through the opening 66 into the collection box 67 for storage, thereby reducing the workload of cleaning the arc filter 61.

[0033] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-reliability self-cleaning fire sprinkler, comprising a connector, a connector seat mounted at the bottom of the connector, a frame fixed at the edge of the bottom end surface of the connector seat, a nozzle arranged at the bottom of the frame, and a glass ball arranged between the bottom of the connector seat and the bottom of the inner side of the frame; Features: It also includes an auxiliary mechanism arranged in the connecting head, the auxiliary mechanism includes an arc-shaped filter screen movably installed in the connecting head, a connecting rod installed in the middle of the top end surface of the arc-shaped filter screen, and a scraper plate that fits the top end surface of the arc-shaped filter screen and is installed on the inner wall of the connecting head; The movable sleeve on the connecting rod is provided with a shaft sleeve, and a plurality of inclined blades are installed on the outer top of the connecting rod, and the shaft sleeve is connected to the inner side wall of the connecting head through a support rod installed on the side surface; The scraper is connected to the inner side of the opening, the opening passes through the inner and outer end surfaces of the connector, and the opening is connected to the inner side of the collection box installed on the side surface of the connector.

2. A high reliability self-cleaning fire sprinkler according to claim 1, characterized in that: The blades on the top of the outer side of the connecting rod are distributed at equal intervals along the circumference of the connecting rod.

3. A high reliability self-cleaning fire sprinkler according to claim 1, characterized in that: A baffle is installed inside the collection box, and the baffle extends obliquely downward away from one end of the collection box.

4. A high reliability self-cleaning fire sprinkler according to claim 1, characterized in that: The connector is provided with a reflux hole which is connected with the inner side of the collecting box and the inner side of the connector. The aperture of the reflux hole is smaller than the aperture of the mesh on the arc-shaped filter.

5. A high reliability self-cleaning fire sprinkler according to claim 2, characterized in that: The angle formed between the width direction of the blade and the horizontal plane is 30° to 50°.

6. A high reliability self-cleaning fire sprinkler according to claim 1, characterized in that: A support rod is respectively installed at the front and rear ends of the shaft sleeve, and the ends of the two support rods away from the shaft sleeve are connected to the inner side wall of the connector.

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