Automatic opening and closing device for water filling nozzle of fire fighting truck

Abstract

The utility model relates to the technical field of fire fighting truck water injection nozzles, and discloses a fire fighting truck water injection nozzle automatic opening and closing device which comprises a connecting plate, a hydraulic rod is rotatably connected to the interior of a mounting frame, blanking caps are fixedly mounted on the outer walls of two rotating shafts, and a rotating frame is movably connected to the sides, away from the rotating shafts, of the blanking caps; l-shaped rods are rotatably connected to the interiors of the two rotating frames, two rotating rods are fixedly mounted on the outer wall of the top of the connecting plate, and a water injection hole is formed in the connecting plate. According to the automatic opening and closing device for the fire fighting truck water filling nozzle, hydraulic rods are opened to drive an annular frame to move outwards, drive a transverse rod to move and drive a top plate and a supporting plate on the two sides to rotate clockwise along the position where a connecting frame is located, at the moment, the supporting plate can drive a blocking cover to move upwards, the blocking cover is in a vertical state, and the effect of automatically opening and closing a water filling hole is achieved; after a vehicle arrives at the scene, the water injection opening can be opened and closed in a cab, one-key operation is achieved, operation at the top of the vehicle is not needed, and the water injection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of water injection ports for fire trucks, in particular to an automatic opening and closing device for a water injection port for a fire truck. Background Art

[0002] When a fire truck is extinguishing a fire, if it encounters a large fire scene and a long burning time, the water in the fire truck tank will be quickly consumed. At this time, it is necessary to quickly replenish the fire truck with water for fire fighting.

[0003] The water inlet of a traditional fire truck requires people to climb to the top of the fire truck to manually open it, and then fill the water tank of the fire truck with water, which greatly affects the efficiency of water injection. This is undoubtedly a fatal flaw in a fire scene where things change rapidly and time is life. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an automatic opening and closing device for the water filling port of a fire truck to solve the problem that the water filling port of a traditional fire truck mentioned in the above background technology requires manual climbing to the top of the fire truck to open it manually, and then the water tank of the fire truck is filled with water, which greatly affects the water filling efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic opening and closing device for the water injection port of a fire truck comprises a connecting plate, a mounting frame is movably installed on the bottom outer wall of the connecting plate, a hydraulic rod is rotatably connected inside the mounting frame, an annular frame is fixedly installed on the output end of the hydraulic rod, two connecting frames are movably installed on the bottom outer wall of the connecting plate, top plates are rotatably connected inside the two connecting frames, support plates are fixedly welded to the outer walls of the two top plates, and shafts are rotatably connected to the outer walls of the two support plates, plugging covers are fixedly installed on the outer walls of the two shafts, a rotating frame is movably connected to the side of the plugging cover away from the rotating shaft, an L-shaped rod is rotatably connected inside the two rotating frames, two rotating rods are fixedly installed on the top outer wall of the connecting plate, and a water injection hole is provided inside the connecting plate.

[0006] Preferably, a cross bar is fixedly installed between the two top plates, and the outer walls of the two cross bars are rotatably connected to the inside of the annular frame.

[0007] Preferably, bolts are provided through the interior of the mounting frame and the two connecting frames, and a plurality of the bolts are threadedly connected to the interior of the connecting plate.

[0008] Preferably, the two L-shaped rods are symmetrically arranged on both sides of the blocking cover, and the two L-shaped rods are not in contact with the blocking cover.

[0009] Preferably, the two support plates are arranged through the water injection hole, and the two support plates are not in contact with the water injection hole.

[0010] Preferably, the angle between the two support plates and the two top plates when welded is 145 degrees, and the cross-section of the plugging cover is larger than the opening area of ​​the water injection hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The automatic opening and closing device of the water injection port of the fire truck drives the annular frame to move outward through the hydraulic rod, drives the cross bar to move, and drives the top plates and support plates on both sides to rotate clockwise along the position of the connecting frame. At this time, the support plate will drive the plugging cover to move up, so that the plugging cover is in a vertical state. When the water injection hole needs to be closed, the hydraulic rod can be controlled in the reverse direction to drive the cross bar to move, and drive the top plate and support plate to rotate counterclockwise. At this time, the plugging cover will move down. At this time, under the guidance of the L-shaped rod, the plugging cover will gradually fit the outer wall of the connecting plate to complete the blocking process, achieving the effect of automatically opening and closing the water injection hole. After the vehicle arrives at the scene, the opening and closing of the water injection port can be operated in the cab, and one-button operation can be achieved. There is no need to operate on the roof, and the water injection efficiency is high.

[0013] 2. The automatic opening and closing device of the water filling port of the fire truck can disassemble the connecting frame and the mounting frame through the setting of multiple bolts, thereby achieving the effect of convenient maintenance.

[0014] 3. The automatic opening and closing device of the water injection port of the fire truck realizes the effect of opening and closing the water injection hole through the cooperation between the hydraulic rod, the annular frame, the top plate, the connecting frame, the support plate, the plug cover, the rotating frame and the L-shaped rod. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a bottom view schematic diagram of the structure of the utility model;

[0017] Figure 3 The utility model structure Figure 1 Enlarged schematic diagram at point A in the middle.

[0018] In the figure: 1. connecting plate; 2. mounting frame; 3. hydraulic rod; 4. annular frame; 5. top plate; 6. connecting frame; 7. support plate; 8. rotating shaft; 9. plugging cover; 10. rotating frame; 11. L-shaped rod; 12. rotating rod; 13. water injection hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example:

[0021] Please refer to Figure 1-3 ,

[0022] The automatic opening and closing device of the water injection port of a fire truck comprises a connecting plate 1, a mounting frame 2 is movably installed on the bottom outer wall of the connecting plate 1, a hydraulic rod 3 is rotatably connected inside the mounting frame 2, an annular frame 4 is fixedly installed on the output end of the hydraulic rod 3, two connecting frames 6 are movably installed on the bottom outer wall of the connecting plate 1, top plates 5 are rotatably connected inside the two connecting frames 6, support plates 7 are fixedly welded to the outer walls of the two top plates 5, and the outer walls of the two support plates 7 are rotatably connected to the rotating shaft 8, and the outer walls of the two rotating shafts 8 are fixedly installed with a plugging cover 9, a rotating frame 10 is movably connected to the side of the plugging cover 9 away from the rotating shaft 8, and the insides of the two rotating frames 10 are rotatably connected to an L-shaped rod 11, two rotating rods 12 are fixedly installed on the top outer wall of the connecting plate 1, and a water injection hole 13 is opened inside the connecting plate 1;

[0023] Specifically, when it is necessary to open the water injection hole 13 for adding water, the hydraulic rod 3 is opened, the hydraulic rod 3 will drive the annular frame 4 to move outward, the annular frame 4 will drive the cross bar to move, and the cross bar will drive the top plates 5 and the support plates 7 on both sides to rotate clockwise along the position of the connecting frame 6. At this time, the support plate 7 will drive the plugging cover 9 to move up. Due to the setting of the L-shaped rod 11, the plugging cover 9 will rotate counterclockwise along the position of the rotating frame 10 when moving up, and then make the plugging cover 9 in a vertical state. At this time, the water injection hole 13 reaches the maximum opening angle. When it is necessary to close the water injection hole 13, the hydraulic rod 3 is controlled in the reverse direction. The annular frame 4 will drive the cross bar to move, and the cross bar will drive the top plate 5 and the support plate 7 to rotate counterclockwise. At this time, the plugging cover 9 will move down. At this time, under the guidance of the L-shaped rod 11, the plugging cover 9 will gradually fit the outer wall of the connecting plate 1, completing the plugging process, and achieving the effect of automatically opening and closing the water injection hole 13;

[0024] In the embodiment: a crossbar is fixedly installed between the two top plates 5, and the outer walls of the two crossbars are rotatably connected to the inside of the annular frame 4;

[0025] Specifically, a cross bar is provided between the top plates 5. The cross bar, as a connecting structure, can push the top plate 5 and the support plate 7 to move. The support plate 7 will drive the blocking cover 9 to move. The blocking cover 9 can be opened under the support of the support plate 7, so as to achieve the effect of automatically opening the water injection hole 13.

[0026] In the embodiment: bolts are provided through the interior of the mounting frame 2 and the two connecting frames 6, and a plurality of bolts are threadedly connected to the interior of the connecting plate 1;

[0027] Specifically, bolts are provided through the mounting frame 2 and the connecting frame 6, and the bolts are used to cooperate and fix the mounting frame 2 and the connecting frame 6 to achieve the effect of limiting the movement of the mounting frame 2 and the connecting frame 6;

[0028] In the embodiment: the two L-shaped rods 11 are symmetrically arranged on both sides of the blocking cover 9, and the two L-shaped rods 11 are not in contact with the blocking cover 9;

[0029] Specifically, the L-shaped rod 11 is symmetrically arranged on both sides of the blocking cover 9 to achieve the effect of supporting the L-shaped rod 11, and the L-shaped rod 11 does not contact the blocking cover 9 to achieve the effect of limiting the movement of the blocking cover 9;

[0030] In the embodiment: two support plates 7 are arranged through the water injection hole 13, and the two support plates 7 are not in contact with the water injection hole 13;

[0031] Specifically, the support plate 7 is arranged through the water injection hole 13, so as to reach out and push open the plugging cover 9. The support plate 7 does not contact the water injection hole 13, so it will not affect the movement of the plugging cover 9.

[0032] In the embodiment: the angle between the two support plates 7 and the two top plates 5 is 145 degrees, and the cross section of the plugging cover 9 is larger than the opening area of ​​the water injection hole 13;

[0033] Specifically, the welding angle between the support plate 7 and the top plate 5 is 145 degrees, which can block the plugging cover 9 without affecting the downward movement of the top plate 5. The cross-section of the plugging cover 9 is larger than the area of ​​the water injection hole 13, which can achieve the effect of limiting the outward migration of water;

[0034] In the embodiment: the hydraulic rod 3 is an existing structure, and the control circuit can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0035] Working principle: the hydraulic rod 3 is opened to drive the annular frame 4 to move outward, drive the cross bar to move, and drive the top plates 5 and support plates 7 on both sides to rotate clockwise along the position of the connecting frame 6. At this time, the support plate 7 will drive the plugging cover 9 to move up, so that the plugging cover 9 is in a vertical state. When the water injection hole 13 needs to be closed, the hydraulic rod 3 can be controlled in reverse to drive the cross bar to move, drive the top plate 5 and the support plate 7 to rotate counterclockwise, and the plugging cover 9 will move down. At this time, under the guidance of the L-shaped rod 11, the plugging cover 9 will gradually fit the outer wall of the connecting plate 1 to complete the blocking process. Compared with the related art, the automatic opening and closing device for the water injection port of a fire truck provided by the utility model has the following beneficial effects: the effect of automatically opening and closing the water injection hole 13 is achieved, and the opening and closing of the water injection port can be operated in the cab after the vehicle arrives at the scene, realizing one-button operation without having to operate on the roof, and the water injection efficiency is high.

[0036] Although 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. An automatic opening and closing device for a water injection port of a fire truck, comprising a connecting plate (1), characterized in that: A mounting frame (2) is movably mounted on the bottom outer wall of the connecting plate (1), a hydraulic rod (3) is rotatably connected inside the mounting frame (2), an annular frame (4) is fixedly mounted on the output end of the hydraulic rod (3), two connecting frames (6) are movably mounted on the bottom outer wall of the connecting plate (1), top plates (5) are rotatably connected inside the two connecting frames (6), support plates (7) are fixedly welded to the outer walls of the two top plates (5), rotating shafts (8) are rotatably connected to the outer walls of the two support plates (7), plugging covers (9) are fixedly mounted on the outer walls of the two rotating shafts (8), a rotating frame (10) is movably connected to the side of the plugging cover (9) away from the rotating shaft (8), an L-shaped rod (11) is rotatably connected inside the two rotating frames (10), two rotating rods (12) are fixedly mounted on the top outer wall of the connecting plate (1), and a water injection hole (13) is provided inside the connecting plate (1).

2. The automatic opening and closing device for the water injection port of a fire truck according to claim 1, characterized in that: A crossbar is fixedly installed between the two top plates (5), and the outer walls of the two crossbars are rotatably connected to the inside of the annular frame (4).

3. The automatic opening and closing device for the water injection port of a fire truck according to claim 1, characterized in that: Bolts are provided inside the mounting frame (2) and the two connecting frames (6), and a plurality of the bolts are threadedly connected inside the connecting plate (1).

4. The automatic opening and closing device for the water injection port of a fire truck according to claim 1, characterized in that: The two L-shaped rods (11) are symmetrically arranged on both sides of the blocking cover (9), and the two L-shaped rods (11) are not in contact with the blocking cover (9).

5. The automatic opening and closing device for the water injection port of a fire truck according to claim 1, characterized in that: The two support plates (7) are arranged to penetrate the inside of the water injection hole (13), and the two support plates (7) are not in contact with the water injection hole (13).

6. The automatic opening and closing device for the water injection port of a fire truck according to claim 1, characterized in that: The angle between the two support plates (7) and the two top plates (5) when welded is 145 degrees, and the cross section of the blocking cover (9) is larger than the opening area of ​​the water injection hole (13).

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