Jet flow direction control structure of jet flow fire extinguishing device

Abstract

The utility model discloses a jet flow direction control structure of a jet flow fire extinguishing device, and relates to the field of jet flow direction control structures, the jet flow direction control structure of the jet flow fire extinguishing device is provided with two nozzles, after probes determine the direction and position of a fire source, a first direction control mechanism controls the two probes to rotate; according to the determined position of the fire source and the orientations of the two spray heads, the controller determines that the spray head with the smaller included angle with the position angle of the fire source is rotated to face the fire source, and the second direction control mechanism controls and adjusts the elevation angles of the two spray heads during rotation. According to the jet flow fire extinguishing device capable of adjusting and controlling the angle of only one spray head, the time for adjusting the spray head in the circumferential direction to face the direction of a fire source is greatly shortened, so that the direction adjusting efficiency is greatly improved, and fire extinguishing work can be carried out in time.

Description

Technical Field

[0001] The utility model relates to the field of jet direction control structures, in particular to a jet direction control structure for a jet fire extinguishing device. Background Art

[0002] The jet fire extinguishing device is installed on the ceiling of a shopping mall, factory or warehouse. Through the installed probe, the fire source position can be automatically determined. Subsequently, the nozzle is controlled to face the fire source for fire extinguishing work through two direction control mechanisms. One of the two direction control mechanisms is used to adjust the direction of the nozzle, and the other is used to adjust the elevation angle of the nozzle.

[0003] In the prior art, only one nozzle is provided for the jet fire extinguishing device. When adjusting the circumferential angle and elevation angle, in order to ensure the accuracy and stability of the adjustment, the adjustment speed is relatively slow. When the deviation between the fire source position and the nozzle direction is far or even opposite, it is necessary to drive the nozzle to rotate a large angle circumferentially to face the fire source position. Coupled with the slow adjustment speed, the control of the jet direction adjustment is relatively slow, and the adjustment speed cannot be effectively improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a jet direction control structure for a jet fire extinguishing device that can improve the jet direction adjustment speed.

[0005] To solve the problems existing in the prior art, the technical solution of the utility model is as follows:

[0006] The jet direction control structure of the jet fire extinguishing device includes a main water inlet pipe. A bearing frame is rotatably connected to the outer wall of the main water inlet pipe. Two nozzles are symmetrically and rotatably installed at the lower end of the bearing frame. An electric three-way valve is fixed to the inner wall of the bearing frame. The liquid inlet end of the electric three-way valve is rotatably connected to the lower end of the main water inlet pipe through a rotating seal. The two liquid outlet ends of the electric three-way valve are respectively connected to the liquid inlet ends of the two nozzles through hoses. A first direction control mechanism for adjusting the orientation of the nozzle is fixed to the top of the bearing frame, and a second direction control mechanism for adjusting the elevation angle of the nozzle is fixed to the inner wall of the bearing frame.

[0007] Preferably, the first direction control mechanism includes a worm gear fixed to the outer wall of the main water inlet pipe. A worm is rotatably connected to the top of the bearing frame through a bearing. The worm gear is meshed with the worm. A first motor is fixed to the top of the bearing frame, and the output end of the first motor is fixed to the end of the worm.

[0008] Preferably, a connecting piece is fixed to one end of the nozzle close to the bearing frame. A first rotating shaft is fixed to the end of the connecting piece away from the nozzle. The first rotating shaft is rotatably connected to the bearing frame through a bearing, and the two pairs of connecting pieces and the first rotating shafts are arranged in central symmetry.

[0009] Preferably, the second direction control mechanism includes connecting rods respectively fixed to the ends of two first rotating shafts close to each other. At the ends of the two connecting rods close to each other, driven bevel gears are fixed, and the two driven bevel gears are symmetrically arranged with the symmetry axis of the bearing frame as the axis. A cross plate is fixed to the inner wall of the bearing frame. The middle of the cross plate is rotatably connected to a second rotating shaft through a bearing. A driving bevel gear is fixed to the lower end of the second rotating shaft. The two driven bevel gears are both meshed with the driving bevel gear. A second motor is fixed to the outer wall of one side of the bearing frame, and one end of a first rotating shaft close to the second motor is fixed to the output end of the second motor.

[0010] Preferably, the two driven bevel gears and the driving bevel gear have the same specifications.

[0011] Preferably, a housing is fixed to the bottom of the cross plate. The housing covers the driving bevel gear and the two driven bevel gears. Avoidance grooves are symmetrically formed in the middle of the housing, and the connecting rods are placed inside the avoidance grooves.

[0012] Compared with the related art, the present utility model has the following beneficial effects:

[0013] By providing two nozzles, after the probe determines the direction and position of the fire source, the first direction control mechanism controls the rotation of the two probes. According to the determined position of the fire source and the orientations of the two nozzles, the controller determines to rotate the nozzle with a smaller angle between the nozzle and the fire source position to face the fire source. While rotating, the second direction control mechanism controls and adjusts the elevation angles of the two nozzles. Compared with the traditional jet fire extinguishing device that only sets one nozzle and only adjusts the angle of one nozzle, the time for the nozzle to adjust to face the fire source direction in the circumferential direction is greatly shortened, thus greatly improving the efficiency of direction adjustment and enabling timely fire extinguishing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is the present utility model Figure 1 Enlarged schematic view of part A;

[0016] Figure 3 It is a schematic diagram of the position of the driving bevel gear of the present utility model;

[0017] Figure 4 It is the present utility model Figure 3 Enlarged schematic view of part B;

[0018] Figure 5 It is a schematic diagram of the position of the connecting rod of the present utility model;

[0019] Figure 6 Schematic diagram of the second embodiment of the present utility model;

[0020] Figure 7 Schematic diagram of the position of the avoidance groove of the present utility model.

[0021] Reference numerals: 1, main water inlet pipe; 2, bearing frame; 3, nozzle; 31, connecting piece; 32, first rotating shaft; 4, electric three-way valve; 5, hose; 6, worm gear; 7, worm; 8, first motor; 9, connecting rod; 10, driven bevel gear; 11, cross plate; 12, second rotating shaft; 13, driving bevel gear; 14, second motor; 15, housing; 16, avoidance groove. Specific embodiments

[0022] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0023] Embodiment 1, please refer to Figures 1 to 5 , this embodiment provides a jet direction control structure for a jet fire extinguishing device, including a main water inlet pipe 1. A bearing frame 2 is rotatably connected to the outer wall of the main water inlet pipe 1 through a bearing. Two nozzles 3 are symmetrically and rotatably installed at the lower end of the bearing frame 2. A connecting piece 31 is fixed at one end of the nozzle 3 close to the bearing frame 2. A first rotating shaft 32 is fixed at one end of the connecting piece 31 away from the nozzle 3. The first rotating shaft 32 is rotatably connected to the bearing frame 2 through a bearing, and the two pairs of connecting pieces 31 and the first rotating shaft 32 are arranged in central symmetry. The nozzle 3 is rotatably connected to the bearing frame 2 through the connecting piece 31 and the first rotating shaft 32;

[0024] An electric three-way valve 4 is fixed to the inner wall of the bearing frame 2. The liquid inlet end of the electric three-way valve 4 is rotatably connected to the lower end of the main water inlet pipe 1 through a rotating seal. The two liquid outlet ends of the electric three-way valve 4 are respectively connected to the liquid inlet ends of the two nozzles 3 through hoses 5. When spraying water, after one nozzle 3 faces the fire source, the electric three-way valve 4 controls to open the passage of the nozzle 3 facing the fire source, so that the water source in the main water inlet pipe 1 enters one nozzle 3 facing the fire source through the electric three-way valve 4 and sprays out. It should be noted that during installation, the main water inlet pipe 1 is installed on the water pipeline arranged on the ceiling in a shopping mall or a factory building through the flange at the top of the main water inlet pipe 1;

[0025] A first direction control mechanism for adjusting the orientation of the nozzle 3 is fixed to the top of the bearing frame 2, and a second direction control mechanism for adjusting the elevation angle of the nozzle 3 is fixed to the inner wall of the bearing frame 2; The first direction control mechanism includes a worm gear 6 fixed to the outer wall of the main water inlet pipe 1. A worm 7 is rotatably connected to the top of the bearing frame 2 through a bearing. The worm gear 6 is meshed with the worm 7. A first motor 8 is fixed to the top of the bearing frame 2. The output end of the first motor 8 is fixed to the end of the worm 7;

[0026] After the probe determines the direction of the fire source, the first direction control mechanism operates to adjust the sprinkler head 3 so that the direction of the sprinkler head 3 rotates toward the fire source position. It should be further explained that, in actual operation, the direction of the fire source is determined by the probe, and the controller determines that the sprinkler head 3 of the two sprinkler heads 3 is oriented toward the sprinkler head 3 with a smaller angle to the direction of the fire source, and then controls the first direction control mechanism to rotate the carrier frame 2 to rotate the determined sprinkler head 3 toward the direction of the fire source;

[0027] The direction of the nozzle 3 is adjusted by driving the first motor 8 to rotate, which drives the worm 7 to rotate. Through the cooperation between the worm 7 and the worm wheel 6, the supporting frame 2 rotates outside the main water inlet pipe 1, thereby adjusting the direction of the nozzle 3;

[0028] The second direction control mechanism includes a connecting rod 9 fixed to one end of the two first rotating shafts 32 close to each other, and a driven bevel gear 10 is fixed to the end of the two connecting rods 9 close to each other, and the two driven bevel gears 10 are symmetrically arranged with the symmetry axis of the carrying frame 2 as the axis. A horizontal plate 11 is fixed to the inner wall of the carrying frame 2, and the middle part of the horizontal plate 11 is rotatably connected to the second rotating shaft 12 through a bearing. A transmission bevel gear 13 is fixed to the lower end of the second rotating shaft 12. The specifications of the two driven bevel gears 10 and the transmission bevel gear 13 are the same. The two driven bevel gears 10 are meshed with the transmission bevel gear 13. A second motor 14 is fixed to the outer wall of one side of the carrying frame 2, and one end of a first rotating shaft 32 close to the side of the second motor 14 is fixed to the output end of the second motor 14;

[0029] In the process of adjusting the direction of the sprinkler head 3, the second motor 14 works, driving one of the first rotating shafts 32 on one side to rotate, thereby rotating the connecting piece 31 and the sprinkler head 3 on that side, and at the same time, the driven bevel gear 10 on that side rotates, driving the transmission bevel gear 13 to rotate, thereby driving the driven bevel gear 10 on the other side to rotate, so that the connecting piece 31 on the other side and the sprinkler head 3 on the connecting piece 31 on the other side rotate. The final effect is that the two sprinkler heads 3 are opened or closed at the same time, thereby achieving the effect of adjusting the elevation angle of the sprinkler head 3, until the elevation angle of the sprinkler head 3 rotating toward the fire source is adjusted to the elevation angle toward the fire source, then the second motor 14 stops working, and the adjustment work is completed;

[0030] Compared with the traditional jet fire extinguishing device that only has one nozzle 3 and only adjusts the angle of the nozzle 3, the time for the nozzle 3 to be adjusted circumferentially to the direction of the fire source is greatly shortened, thereby greatly improving the efficiency of the direction adjustment and enabling timely fire extinguishing.

[0031] For example 2, please refer to Figure 6 and Figure 7, this embodiment provides a further technical solution based on Embodiment 1. A housing 15 is fixed to the bottom of the cross plate 11. The housing 15 covers the driving bevel gear 13 and the two driven bevel gears 10. Avoidance grooves 16 are symmetrically formed in the middle of the housing 15. The connecting rod 9 is placed inside the avoidance grooves 16. The housing 15 can cover the driving bevel gear 13 and the driven bevel gears 10 to protect them. At the same time, it can isolate the hose 5 from the driving bevel gear 13 and the driven bevel gears 10, avoiding frictional damage to the hose 5.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The jet direction control structure of the jet fire extinguishing device is characterized by: The invention comprises a main water inlet pipe (1), wherein a supporting frame (2) is rotatably connected to the outer wall of the main water inlet pipe (1) via a bearing, and two nozzles (3) are symmetrically rotatably mounted on the lower end of the supporting frame (2), and an electric three-way valve (4) is fixed to the inner wall of the supporting frame (2), and the liquid inlet end of the electric three-way valve (4) is rotatably connected to the lower end of the main water inlet pipe (1) via a rotating seal, and the two water outlet ends of the electric three-way valve (4) are respectively connected to the liquid inlet ends of the two nozzles (3) via a hose (5), and a first direction control mechanism for adjusting the direction of the nozzle (3) is fixed to the top of the supporting frame (2), and a second direction control mechanism for adjusting the elevation angle of the nozzle (3) is fixed to the inner wall of the supporting frame (2).

2. The jet direction control structure of the jet fire extinguishing device according to claim 1 is characterized in that: The first direction control mechanism comprises a worm wheel (6) fixed on the outer wall of the main water inlet pipe (1); the top of the supporting frame (2) is rotatably connected to a worm (7) via a bearing; the worm wheel (6) is meshingly connected to the worm (7); a first motor (8) is fixed on the top of the supporting frame (2); and an output end of the first motor (8) is fixed to an end of the worm (7).

3. The jet direction control structure of the jet fire extinguishing device according to claim 1 is characterized in that: A connecting piece (31) is fixed to one end of the nozzle (3) close to the supporting frame (2), and a first rotating shaft (32) is fixed to one end of the connecting piece (31) away from the nozzle (3). The first rotating shaft (32) is rotatably connected to the supporting frame (2) via a bearing, and the two pairs of connecting pieces (31) and the first rotating shaft (32) are arranged in a centrally symmetrical manner.

4. The jet direction control structure of the jet fire extinguishing device according to claim 3 is characterized in that: The second direction control mechanism includes connecting rods (9) respectively fixed to the ends of the two first rotating shafts (32) close to each other, and the ends of the two connecting rods (9) close to each other are fixed with driven bevel gears (10), and the two driven bevel gears (10) are symmetrically arranged with the symmetry axis of the supporting frame (2) as the axis, and a transverse plate (11) is fixed to the inner wall of the supporting frame (2), and the middle part of the transverse plate (11) is rotatably connected to the second rotating shaft (12) through a bearing, and a transmission bevel gear (13) is fixed to the lower end of the second rotating shaft (12), and the two driven bevel gears (10) are meshed with the transmission bevel gear (13), and a second motor (14) is fixed on the outer wall of one side of the supporting frame (2), and one end of a first rotating shaft (32) close to the side of the second motor (14) is fixed to the output end of the second motor (14).

5. The jet direction control structure of the jet fire extinguishing device according to claim 4 is characterized in that: The two driven bevel gears (10) and the transmission bevel gear (13) have the same specifications.

6. The jet direction control structure of the jet fire extinguishing device according to claim 4, characterized in that: A cover (15) is fixed to the bottom of the transverse plate (11), and the cover (15) covers the driving bevel gear (13) and the two driven bevel gears (10). A symmetrical avoidance groove (16) is formed in the middle of the cover (15), and the connecting rod (9) is placed inside the avoidance groove (16).

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