Ultra-early inhibition quick response nozzle

Abstract

The utility model relates to the technical field of fire fighting equipment, in particular to an ultra-early inhibition quick response spray head, which comprises a frame, a sealing element, a splash box, a left support rod, a right support rod and a thermosensitive element, a water outlet is formed in the frame; the sealing element is arranged at the water outlet of the frame through the cooperation of the left supporting rod, the right supporting rod and the thermosensitive element, the thermosensitive element is located on the outer side of the lower portion of the frame, the sensitivity of the spray head to the temperature can be improved, and the effect of ultra-early suppression and quick response is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, and specifically relates to an ultra-early suppression quick response sprinkler head. Background Art

[0002] Early suppression quick response sprinkler heads are mainly used in the automatic sprinkler fire extinguishing systems of building fire-fighting facilities. When a fire occurs, the quick response control component of the early suppression quick response sprinkler head sprays water when encountering high temperature, eliminating the fire or preventing the rapid spread of the fire in the first time.

[0003] Most of the existing early suppression quick response sprinkler heads adopt the structure that the actuating mechanism and the thermal sensitive element are arranged between the deflector and the inlet pipe. For example, in the patent of the applicant named early suppression quick response sprinkler head with the publication number CN207356436U, through the cooperation of the thermal sensitive element and the actuating mechanism, the purpose of the sprinkler head spraying water automatically when encountering hot air flow is realized. When in use, the sprinkler heads are all vertically installed. After a fire occurs, the first thing to contact the hot air flow is the deflector or the inlet pipe, so that the thermal sensitive element and the actuating mechanism cannot contact the hot air flow in the first time. Based on this, how to further improve the sensitivity of the early suppression quick response sprinkler head to achieve quick response is a problem to be solved in this field. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an ultra-early suppression quick response sprinkler head, which can improve the sensitivity of the sprinkler head to temperature and achieve the effect of ultra-early suppression and quick response.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: An ultra-early suppression quick response sprinkler head includes a frame, a sealing element and a deflector installed on the frame. The sprinkler head further includes a left support rod, a right support rod and a thermal sensitive element; an outlet is arranged on the frame; the sealing element is arranged at the outlet of the frame through the cooperation of the left support rod, the right support rod and the thermal sensitive element, wherein the thermal sensitive element is located outside the lower part of the frame.

[0006] Preferably, the lower end of the left support rod is connected with the lower end of the right support rod through the thermal sensitive element. The upper ends of the left support rod and the right support rod are both crimped with the sealing element, and the rod bodies of the left support rod and the right support rod are both crimped with the frame.

[0007] Preferably, both the left support rod and the right support rod are arc-shaped structures.

[0008] Preferably, the frame includes a pipe joint, two brackets and a fixed seat; the outlet is located at the lower end of the pipe joint; the deflector is installed on the fixed seat, and the thermal sensitive element is located below the deflector; the left support rod and the right support rod are correspondingly arranged through the two brackets.

[0009] Preferably, the sealing element includes a ball seat and a sealing ring; the sealing ring is arranged between the ball seat and the pipe joint, and the ball seat is crimped to both the left support rod and the right support rod.

[0010] Preferably, the ball seat is provided with grooves adapted to the left support rod and the right support rod.

[0011] Preferably, the sealing ring is made of polytetrafluoroethylene.

[0012] Preferably, the thermal element consists of a pull-down piece, a pull-up piece and a fusible alloy; the left support rod is connected to the pull-down piece; the right support rod is connected to the pull-up piece.

[0013] Preferably, a spring is further included; the spring is arranged on the frame and is crimped to the sealing element.

[0014] Preferably, the fixing seat is of a hollow structure.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: by arranging the thermal element at the lower end of the nozzle body, during implementation, the nozzle is installed in a drooping manner on the municipal pipeline, so that the horizontal height of the thermal element is the lowest, greatly improving the sensitivity of the nozzle to temperature. After a fire occurs, the thermal element can receive the hot air flow in the first time, achieving the effect of ultra-early suppression and rapid response. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the nozzle of the present utility model;

[0017] Figure 2 is a schematic diagram of the longitudinal section of the nozzle of the present utility model;

[0018] Figure 3 is a schematic diagram of the frame structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the thermal element structure of the present utility model.

[0020] In the figure: 1 frame, 2 sealing element, 3 spring, 4 left support rod, 5 right support rod, 6 splash plate, 7 thermal element, 11 pipe joint, 12 bracket, 13 fixing seat, 14 through hole, 21 ball seat, 22 sealing ring, 71 pull-down piece, 72 pull-up piece, 73 pull-down hole, 74 pull-up hole. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] The following further details the specific embodiments of the present utility model with reference to the drawings, so that those skilled in the art can more clearly understand how to practice the present utility model. Although the present utility model is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative and do not limit the scope of the present utility model.

[0022] Specific Embodiment 1: Please refer to Figures 1-4 a very early suppression fast response sprinkler, comprising: a frame 1, a sealing element 2, a spring 3, a left support rod 4, a right support rod 5, a deflector 6 and a thermal element 7. The frame 1 includes a pipe joint 11, a bracket 12 and a fixed seat 13 arranged in sequence from top to bottom. A positioning boss is provided at the joint of the pipe joint 11 and the bracket 12. The sealing element 2 is installed on the positioning boss under the cooperation of the left support rod 4, the right support rod 5 and the thermal element 7 to block the pipe joint 11. The spring 3 is installed on the bracket 12 and is press-connected with the sealing element 2. The deflector 6 is arranged at the lower end of the fixed seat 13, and the thermal element 7 is located below the deflector 6. During use, this sprinkler is installed in a drooping manner on a municipal pipeline, and the thermal element 7 is located at the lowermost end. After a fire occurs, the thermal element 7 can receive the hot air flow in the first time to achieve the effect of very early suppression and fast response.

[0023] Specifically, the sealing element 2 is composed of a ball seat 21 made of rigid material and a sealing ring 22 made of polytetrafluoroethylene. The ball seat 21 is installed on the positioning boss, and the sealing ring 22 is arranged between the ball seat 21 and the positioning boss. After assembly, the rigid ball seat 21 transmits the pre-tightening force to the sealing ring 22 under the support of the left support rod 4 and the right support rod 5. At this time, the sealing ring 22 is extruded and deformed under the action of the supporting reaction force of the upper positioning boss and the pre-tightening force transmitted from the lower side, and the sealing ring 22 forms a surface contact with the positioning boss to achieve the purpose of sealing.

[0024] Both the left support rod 4 and the right support rod 5 are arc-shaped structures bent outward, and the left support rod 4 and the right support rod 5 are symmetrically installed on the frame 1. A through hole 14 is provided on the bracket 12. The left support rod 4 and the right support rod 5 are arranged on the frame 1 by passing through the through holes 14 at corresponding positions. The lower ends of the left support rod 4 and the right support rod 5 are connected by the thermal element 7 and form a tension. At this time, the upper ends of the left support rod 4 and the right support rod 5 are both press-connected with the ball seat 21 under the action of a lever. That is to say, the left support rod 4 and the right support rod 5 can transmit the designed load to the ball seat 21 through the lever action and the thermal element 7 with a specific operating temperature, so that the ball seat 21 presses the sealing ring 22 tightly. Through such a setting, the sealing of the sprinkler under a static water pressure of 3.4 MPa can be realized.

[0025] In one embodiment, in order to increase the contact area between the ball seat 21 and the left support rod 4 and the right support rod 5 and improve the stability of the sprinkler structure, grooves adapted to the left support rod 4 and the right support rod 5 are provided on the ball seat 21, and the side walls of the grooves are in surface contact with both the left support rod 4 and the right support rod 5.

[0026] In one embodiment, the left support rod 4 is used as a lever to implement the effect, and its structure is not limited to an arc-shaped structure bending outward, but may also be an arc-shaped structure bending inwardly of the frame 1 or a straight rod structure.

[0027] The thermistor 7 is composed of a lower pull-tab 71, an upper pull-tab 72 and a fusible alloy (not shown in the figure). The upper pull-tab 72 is staggered and fixedly connected to the lower pull-tab 71 through the fusible alloy. A lower pull-tab hole 73 is provided on the lower pull-tab 71 at a position staggered from the upper pull-tab 72, and an upper pull-tab hole 74 is provided on the upper pull-tab 72 at a position staggered from the lower pull-tab 71. After assembly, the lower end of the left support rod 4 passes through the lower pull-tab hole 73, and the lower end of the right support rod 5 passes through the upper pull-tab hole 74.

[0028] Working principle of this nozzle: When in use, this nozzle is installed in a drooping manner on the municipal pipeline. When a fire occurs, the thermistor 7 can receive the hot air flow in the first time, the fusible alloy melts, the lower pull-up piece 71 separates from the upper pull-up piece 72, and after losing the pulling force, the left support rod 4 and the right support rod 5 detach from the frame 1 after the lever action disappears, the ball seat 21 and the sealing ring 22 lose their support and are pushed out of the frame 1 under the action of the spring 3, and the water in the municipal pipeline is sprayed to the splash plate 6 through the pipe joint 11 to form an atomization area. This nozzle can effectively control the fire, reduce the temperature, and prevent the spread of smoke and harmful gases.

[0029] In one embodiment, in order to reduce the mass of the nozzle, the fixing seat 13 is a hollow spherical structure.

[0030] Through the technical solution, by arranging the thermistor at the lower end of the nozzle body, the nozzle is installed in a drooping manner on the municipal pipeline during implementation so that the horizontal height of the thermistor is the lowest, which greatly improves the sensitivity of the nozzle to temperature. After a fire occurs, the thermistor can receive the hot air flow in the first time, achieving the effect of ultra-early suppression and rapid response.

[0031] Although the 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. A very early suppression fast response sprinkler, comprising a frame (1), a sealing element (2) and a deflector (6) mounted on the frame (1), characterized in that: The nozzle further includes a left support rod (4), a right support rod (5), and a thermal element (7); a water outlet is provided on the frame (1); the sealing element (2) is arranged at the water outlet of the frame (1) through the cooperation of the left support rod (4), the right support rod (5), and the thermal element (7), wherein the thermal element (7) is located outside the lower part of the frame (1).

2. The ultra-early suppression fast response sprinkler according to claim 1, characterized in that: The lower end of the left support rod (4) is connected to the lower end of the right support rod (5) through the thermal element (7), the upper ends of the left support rod (4) and the right support rod (5) are both crimped to the sealing element (2), and the rod bodies of the left support rod (4) and the right support rod (5) are both abutted against the frame (1).

3. The ultra-early suppression fast response sprinkler according to claim 1, characterized in that: Both the left support rod (4) and the right support rod (5) are of arc-shaped structures.

4. The ultra-early suppression fast response sprinkler according to claim 2, characterized in that: The frame (1) includes a pipe joint (11), two brackets (12), and a fixing seat (13); the water outlet is located at the lower end of the pipe joint (11); the splash plate (6) is installed on the fixing seat (13), and the thermal element (7) is located below the splash plate (6); the left support rod (4) and the right support rod (5) are correspondingly arranged through the two brackets (12).

5. The ultra-early suppression fast response sprinkler according to claim 4, characterized in that: The sealing element (2) includes a ball seat (21) and a sealing ring (22); the sealing ring (22) is arranged between the ball seat (21) and the pipe joint (11), and the ball seat (21) is crimped to both the left support rod (4) and the right support rod (5).

6. The ultra-early suppression fast response sprinkler according to claim 5, wherein: A groove adapted to the left support rod (4) and the right support rod (5) is formed at the lower end of the ball seat (21).

7. The ultra-early suppression fast response sprinkler according to claim 5, characterized in that: The sealing ring (22) is made of polytetrafluoroethylene.

8. The ultra-early suppression fast response sprinkler according to claim 1 or 2, characterized in that: The thermal element (7) consists of a pull-down piece (71), a pull-up piece (72), and a fusible alloy; the left support rod (4) is connected to the pull-down piece (71); the right support rod (5) is connected to the pull-up piece (72).

9. The ultra-early suppression fast response sprinkler according to claim 1, characterized in that: A spring (3) is further included; the spring (3) is arranged on the frame (1) and is crimped to the sealing element (2).

10. The ultra-early suppression fast response sprinkler according to claim 4, wherein: The fixing seat (13) is of a hollow structure.

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