In-situ rotary supporting device for fire fighting truck

Abstract

The utility model discloses a fire fighting truck in-situ rotation supporting device, which relates to the field of fire fighting trucks, and comprises a base, a rotating shaft is fixed in the middle of the top of the base, a first worm gear is fixed at the top of the rotating shaft, a second hydraulic cylinder is fixed at the top of the first worm gear, and a third fixing plate is fixed at the top of the second hydraulic cylinder. A second groove is formed in the middle of the interior of the third fixing plate, first grooves are formed in the two sides of the third fixing plate, a second worm is arranged, when the second worm rotates, a second worm gear is driven through meshing connection, and when the second worm gear rotates, a tooth column is driven to rotate; the toothed column moves through meshing connection with a toothed plate when rotating, the toothed plate moves to drive a first fixing plate to move, the first fixing plate moves to drive a first hydraulic cylinder to move, the first hydraulic cylinder moves to drive a second fixing plate to move, and the supporting area is enlarged when the second fixing plate moves. Therefore, stability is improved and accidents are prevented.

Description

Technical Field

[0001] This utility model relates to the field of fire trucks, specifically a fire truck in-situ rotation support device. Background Technology

[0002] Fire trucks, also known as fire engines, are vehicles designed and manufactured to be suitable for firefighters to ride in, equipped with various fire-fighting equipment or extinguishing agents, and used by fire brigades for fire fighting, assisting in fire fighting, or fire rescue. They are usually double-row vehicles, and fire departments in most countries, including China, also use them for other emergency rescue purposes.

[0003] Existing patent CN221384992U discloses a fire truck in-situ rotation support device. When using this device, the base plate is first moved to the bottom of the fire truck. Then, the power is turned on and the second electric hydraulic cylinder is activated. The second electric hydraulic cylinder pushes the T-block to move, which in turn compresses the connecting rod to rotate. The rotation of the connecting rod pushes the reinforced support plate into contact with the ground. Next, the servo motor is activated, which drives the trapezoidal screw to rotate. The rotation of the trapezoidal screw drives the slider to move, which in turn drives the crossbars to move, thus unfolding the four crossbars. Then, the first electric hydraulic cylinder is activated, which pushes the top plate into contact with the bottom of the fire truck, lifting the fire truck. Finally, the drive motor is activated, which drives the drive gear to rotate. The drive gear meshes with the driven gear, thereby driving the connecting shaft to rotate. The rotation of the connecting shaft drives the turntable to rotate, achieving the in-situ rotation of the fire truck.

[0004] The existing device supports the fire truck with hydraulic cylinders and then rotates the fire truck with an electric motor. However, the existing device has too small a support area, resulting in low stability and a high risk of accidents. Utility Model Content

[0005] The purpose of this utility model is to provide a fire truck in-situ rotation support device to solve the problem that the existing device has too small a support area, resulting in low stability and easy accidents.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire truck stationary rotation support device, comprising a base, a rotating shaft fixed at the center of the top of the base, the base fixing the rotating shaft, a first worm gear fixed at the top of the rotating shaft, the rotating shaft fixing the first worm gear, a second hydraulic cylinder fixed at the top of the first worm gear, a third fixing plate fixed at the top of the second hydraulic cylinder, a second groove formed in the center of the interior of the third fixing plate, first grooves formed on both sides of the third fixing plate, a second worm gear disposed inside the second groove, a second worm engaged with one side of the outer surface of the second worm gear, the second worm driving the second worm gear through the engagement connection when the second worm rotates, and the second worm passing through one end of the third fixing plate, a toothed column fixed at the top of the second worm gear, the toothed column rotating when the second worm gear rotates, toothed plates engaged with both sides of the outer surface of the toothed column, the toothed column moving through the engagement connection when it rotates.

[0007] As a further embodiment of this utility model: a first fixing plate is fixed on one side of the toothed plate, and the toothed plate moves to drive the first fixing plate to move. The first fixing plate is located inside the first groove. A first hydraulic cylinder is installed on both sides of the top of the first fixing plate, and the first hydraulic cylinder moves to drive the first fixing plate to move.

[0008] As a further embodiment of this utility model: a second fixing plate is fixed to the top of the first hydraulic cylinder, and the second fixing plate is moved when the first hydraulic cylinder moves. A support sleeve is fixed to the middle of the bottom of the second fixing plate, and the support sleeve is moved when the second fixing plate moves.

[0009] As a further improvement of this utility model: a support column is slidably connected inside the support sleeve, and a slot is formed on the outer surface of the support column. When the support column moves, it drives the slot to move as well.

[0010] As a further improvement of this utility model: a threaded groove is provided on one side of the support sleeve, the support sleeve is fixed to the threaded groove, and a bolt is engaged inside the threaded groove, which moves through the threaded groove when it rotates.

[0011] As a further embodiment of this utility model: an electric motor is installed on one side of the top of the base, and a first worm is fixed to the output end of the electric motor. The electric motor drives the first worm to rotate, and the first worm is meshed with a first worm wheel.

[0012] As a further embodiment of this utility model: the top of the base is provided with an arc-shaped groove, the base is fixed to the arc-shaped groove, and the arc-shaped groove is located on one side of the rotating shaft. Fixed columns are fixed on both sides of the bottom of the first worm wheel. When the first worm wheel rotates, it drives the fixed columns to rotate, and the fixed columns are slidably connected to the arc-shaped groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting a second worm, when the second worm rotates, it drives the second worm wheel through meshing connection. When the second worm wheel rotates, it drives the gear column to rotate. When the gear column rotates, it moves through meshing connection with the gear plate. When the gear plate moves, it drives the first fixed plate to move. When the first fixed plate moves, it drives the first hydraulic cylinder to move. When the first hydraulic cylinder moves, it drives the second fixed plate to move. When the second fixed plate moves, it expands the support area to increase stability and prevent accidents.

[0015] 2. By setting up support columns, when the support columns move, they drive the slot to continue to move. At this time, the bolt is rotated. When the bolt rotates, it moves through the threaded groove. When the bolt moves into the slot, it drives the support column to be fixed through the slot. When the support column is fixed, it supports the second fixing plate to prevent the second fixing plate from tilting due to uneven force. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure shown in Figure A;

[0019] Figure 4 This is a schematic diagram of the structure shown in Figure B.

[0020] In the diagram: 1. Base; 2. Arc groove; 3. Motor; 4. First worm gear; 5. First groove; 6. First fixing plate; 7. First hydraulic cylinder; 8. Second fixing plate; 9. Support sleeve; 10. Second hydraulic cylinder; 11. Rotating shaft; 12. Fixing column; 13. First worm wheel; 14. Slot; 15. Gear plate; 16. Third fixing plate; 17. Second groove; 18. Second worm gear; 19. Second worm wheel; 20. Gear column; 21. Support column; 22. Bolt; 23. Threaded groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , 23. In this embodiment of the present invention, a fire truck in-situ rotation support device includes a base 1. A rotating shaft 11 is fixed to the center of the top of the base 1, and the base 1 fixes the rotating shaft 11. A first worm gear 13 is fixed to the top of the rotating shaft 11, and the rotating shaft 11 fixes the first worm gear 13. A second hydraulic cylinder 10 is fixed to the top of the first worm gear 13, and a third fixing plate 16 is fixed to the top of the second hydraulic cylinder 10. A second groove 17 is formed in the center of the interior of the third fixing plate 16, and openings are formed on both sides of the third fixing plate 16. There is a first groove 5, and a second worm gear 19 is provided inside the second groove 17. A second worm 18 is meshed with one side of the outer surface of the second worm gear 19. When the second worm 18 rotates, it drives the second worm gear 19 through the meshing connection. The second worm 18 passes through one end of the third fixed plate 16. A toothed column 20 is fixed on the top of the second worm gear 19. When the second worm gear 19 rotates, it drives the toothed column 20 to rotate. Toothed plates 15 are meshed with both sides of the outer surface of the toothed column 20. When the toothed column 20 rotates, it moves through the meshing connection of the toothed plates 15.

[0023] When the second worm 18 rotates, it drives the second worm wheel 19 through meshing connection. When the second worm wheel 19 rotates, it drives the toothed column 20 to rotate.

[0024] Please refer to this carefully. Figure 1 , 4 A first fixing plate 6 is fixed on one side of the toothed plate 15. When the toothed plate 15 moves, it drives the first fixing plate 6 to move. The first fixing plate 6 is located inside the first groove 5. A first hydraulic cylinder 7 is installed on both sides of the top of the first fixing plate 6. When the first fixing plate 6 moves, it drives the first hydraulic cylinder 7 to move. A second fixing plate 8 is fixed on the top of the first hydraulic cylinder 7. When the first hydraulic cylinder 7 moves, it drives the second fixing plate 8 to move. A support sleeve 9 is fixed in the middle of the bottom of the second fixing plate 8. When the second fixing plate 8 moves, it drives the support sleeve 9 to move.

[0025] When the toothed plate 15 moves, it drives the first fixed plate 6 to move, and when the first fixed plate 6 moves, it drives the first hydraulic cylinder 7 to move.

[0026] In this embodiment: when the second worm 18 rotates, it drives the second worm wheel 19 through meshing connection. When the second worm wheel 19 rotates, it drives the toothed column 20 to rotate. When the toothed column 20 rotates, it moves through the meshing connection of the toothed plate 15. When the toothed plate 15 moves, it drives the first fixed plate 6 to move. When the first fixed plate 6 moves, it drives the first hydraulic cylinder 7 to move. When the first hydraulic cylinder 7 moves, it drives the second fixed plate 8 to move.

[0027] Please refer to this carefully. Figure 4The support sleeve 9 has a support column 21 slidably connected inside. The outer surface of the support column 21 has a slot 14. When the support column 21 moves, it drives the slot 14 to move. The support sleeve 9 has a screw groove 23 on one side. The support sleeve 9 fixes the screw groove 23. The screw groove 23 has a bolt 22 meshing inside. When the bolt 22 rotates, it moves through the screw groove 23.

[0028] When the support column 21 moves, it drives the slot 14 to move as well, and when the bolt 22 rotates, it moves through the screw groove 23.

[0029] Please refer to this carefully. Figure 1 A motor 3 is installed on one side of the top of the base 1. A first worm 4 is fixed to the output end of the motor 3. The motor 3 drives the first worm 4 to rotate. The first worm 4 is meshed with the first worm wheel 13. An arc-shaped groove 2 is opened on the top of the base 1. The base 1 fixes the arc-shaped groove 2. The arc-shaped groove 2 is located on one side of the rotating shaft 11. Fixing columns 12 are fixed on both sides of the bottom of the first worm wheel 13. When the first worm wheel 13 rotates, it drives the fixing columns 12 to rotate. The fixing columns 12 are slidably connected to the arc-shaped groove 2.

[0030] The electric motor 3 drives the first worm 4 to rotate, and when the first worm 4 rotates, it drives the first worm wheel 13 to rotate through meshing connection.

[0031] In this embodiment: when the support column 21 moves, it drives the slot 14 to continue to move. At this time, the rotating bolt 22 rotates. When the bolt 22 rotates, it moves through the screw groove 23. The bolt 22 moves into the inside of the slot 14. When the bolt 22 moves, it drives the support column 21 to be fixed through the slot 14.

[0032] Working principle: The second worm 18 is rotated. When the second worm 18 rotates, it drives the second worm wheel 19 through meshing connection. When the second worm wheel 19 rotates, it drives the gear column 20 to rotate. When the gear column 20 rotates, it moves through the meshing connection of the gear plate 15. When the gear plate 15 moves, it drives the first fixed plate 6 to move. When the first fixed plate 6 moves, it drives the first hydraulic cylinder 7 to move. When the first hydraulic cylinder 7 moves, it drives the second fixed plate 8 to move.

[0033] The support column 21 is moved by pulling it. When the support column 21 moves, it drives the slot 14 to continue to move. At this time, the bolt 22 is rotated. When the bolt 22 rotates, it moves through the screw groove 23. The bolt 22 moves into the slot 14. When the bolt 22 moves, it drives the support column 21 to be fixed through the slot 14.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A fire truck in situ rotating support device comprising a base (1), characterized in that, A rotating shaft (11) is fixed at the center of the top of the base (1). A first worm gear (13) is fixed at the top of the rotating shaft (11). A second hydraulic cylinder (10) is fixed at the top of the first worm gear (13). A third fixing plate (16) is fixed at the top of the second hydraulic cylinder (10). A second groove (17) is provided in the center of the interior of the third fixing plate (16). A first groove (5) is provided on both sides of the third fixing plate (16). A second worm gear (19) is provided inside the second groove (17). A second worm (18) is meshed with one side of the outer surface of the second worm gear (19). The second worm (18) passes through one end of the third fixing plate (16). A toothed column (20) is fixed at the top of the second worm gear (19). Toothed plates (15) are meshed with both sides of the outer surface of the toothed column (20).

2. The rotating support device for a fire truck according to claim 1, wherein A first fixing plate (6) is fixed on one side of the toothed plate (15), and the first fixing plate (6) is located inside the first groove (5). A first hydraulic cylinder (7) is installed on both sides of the top of the first fixing plate (6).

3. A fire apparatus spin-on support apparatus as in claim 2, wherein: The top of the first hydraulic cylinder (7) is fixed with a second fixing plate (8), and the bottom of the second fixing plate (8) is fixed with a support sleeve (9).

4. The rotating support device for a fire truck of claim 3, wherein, The support sleeve (9) is slidably connected to a support column (21), and the outer surface of the support column (21) is provided with a slot (14).

5. The apparatus of claim 3 wherein: The support sleeve (9) has a threaded groove (23) on one side, and a bolt (22) is engaged inside the threaded groove (23).

6. A fire truck in-situ rotation support device according to claim 1, characterized in that, An electric motor (3) is installed on one side of the top of the base (1). The output end of the electric motor (3) is fixed with a first worm (4), and the first worm (4) is meshed with a first worm wheel (13).

7. The apparatus of claim 1 wherein, The base (1) has an arc-shaped groove (2) on its top, and the arc-shaped groove (2) is located on one side of the rotating shaft (11). The bottom of the first worm gear (13) is fixed with two fixed columns (12), and the fixed columns (12) are slidably connected to the arc-shaped groove (2).

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