Movable fire fighting equipment
By designing a mobile fire-fighting equipment, utilizing casters, scissor lifts, and a servo motor-driven threaded rod and worm gear structure, the problems of fixed height and inconvenient nozzle adjustment in existing fire-fighting equipment have been solved, achieving flexible fire-fighting operation and efficient fire-fighting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GUANGDA SYST INTEGRATION CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
AI Technical Summary
The existing fire-fighting equipment is fixed in height and cannot be flexibly adjusted. The spray range and angle of the sprinklers are inconvenient to adjust, and there is a lack of additional storage space for fire-fighting supplies, resulting in low rescue efficiency at complex fire scenes.
A mobile fire-fighting device was designed, which uses casters for easy movement and combines a scissor lift frame with a servo motor-driven threaded rod and worm gear structure to achieve flexible adjustment of height and nozzle angle. It is also equipped with a water tank and a storage box to ensure the supply of fire-fighting water and the carrying of additional fire-fighting equipment.
It enables precise fire suppression at different altitudes and in complex environments, shortens rescue response time, expands the spraying range, improves fire suppression efficiency, and enhances the ability to cope with complex fires.
Smart Images

Figure CN224269996U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection equipment technology, specifically a portable fire protection device. Background Technology
[0002] In modern society, fire is an extremely destructive disaster that constantly threatens people's lives and property. With the acceleration of urbanization and the increasing number of buildings and facilities, the potential risk of fire is also rising. In responding to fires, efficient and flexible firefighting equipment is crucial.
[0003] Currently, the market offers a wide variety of fire-fighting equipment, but many devices have limitations. Some fire-fighting equipment has a fixed height, making it impossible to flexibly adjust to the actual needs of different fire scenes. This results in difficulties achieving ideal fire-fighting effects when facing fires at special heights or in complex environments. For example, in some high-rise building fires, if the fire-fighting equipment is not tall enough, it cannot effectively extinguish fires on higher floors. Furthermore, the spray range and angle adjustment of existing fire-fighting equipment nozzles are not convenient enough, which limits the efficiency and coverage of fire-fighting efforts. Moreover, some fire-fighting equipment lacks additional storage space for fire-fighting supplies. In emergencies, firefighters may need to search for and carry additional fire extinguishers and other equipment, increasing rescue time and difficulty. Therefore, we propose a mobile fire-fighting equipment. Utility Model Content
[0004] The purpose of this invention is to provide a portable fire-fighting device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a base plate, a scissor lift frame is mounted on the top of the base plate, and several casters are evenly fixedly mounted on the bottom of the base plate. A fixing plate is also mounted on the top of the scissor lift frame. A threaded rod is rotatably mounted inside the fixing plate via a bearing. The threaded rod passes through a mounting rod on one side of the scissor lift frame and is threadedly connected to the mounting rod. A mounting shell is fixedly mounted on the top of the fixing plate, and a water tank is installed inside the mounting shell. Another fixing shell is fixedly mounted on one side of the mounting shell. A rack is slidably mounted on the fixing shell. A half-gear is rotatably mounted inside the mounting shell, and a nozzle is fixedly mounted on the half-gear. The half-gear meshes with the rack. A pump is fixedly mounted inside the mounting shell on one side of the fixing shell. The pump's inlet is fixedly connected to the water tank, and the pump's outlet is fixedly connected to the nozzle via a water pipe. A water inlet is also provided on the water tank.
[0006] Preferably, the inner walls of the front and rear sides of the base plate are provided with sliding grooves, and a limit shaft is fixedly installed on one side of the bottom of the scissor lifting frame. The limit shaft is slidably connected to the sliding groove, and a roller is rotatably mounted on the limit shaft through a bearing. The roller contacts the base plate.
[0007] Preferably, a screw is rotatably mounted inside the fixed housing via a bearing. The screw passes through a rack and is threadedly connected to the rack. Rotating the screw will drive the rack to move. A worm gear is also mounted on the screw via a key. A worm is also rotatably mounted on the fixed housing, and the worm and the worm gear mesh with each other.
[0008] Preferably, a placement box is provided on the other side of the mounting shell, and a door is provided on the side wall of the placement box via a hinge.
[0009] Preferably, a drive motor is also fixedly installed on one side of the outer wall of the fixed plate, and the power output shaft of the drive motor is fixedly connected to the threaded rod through a coupling.
[0010] Preferably, a servo motor is also fixedly installed at the bottom of the fixed housing, and the power output shaft of the servo motor is fixedly connected to the worm gear through a coupling.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the universal wheels evenly installed at the bottom of the base plate enable the equipment to move flexibly, facilitate quick arrival at the fire scene, and timely carry out fire extinguishing work, effectively shortening the rescue response time. By driving the threaded rod to rotate through the drive motor, combined with the connection structure between the scissor lifting frame and the fixed plate, the height of the fixed plate can be easily adjusted, thereby adjusting the height of the nozzle to adapt to the fire extinguishing needs of fire scenarios of different heights. Whether it is a low-rise building or a place with a certain height, it can achieve precise fire extinguishing. At the same time, the servo motor drives the worm gear to rotate, which drives the worm wheel and screw to rotate, causing the rack to move. Then, by utilizing the meshing relationship between the rack and the half gear, the nozzle is driven to rotate, thereby flexibly adjusting the spray angle of the nozzle, expanding the spray range, improving fire extinguishing efficiency and coverage, and ensuring that the fire source is extinguished more comprehensively.
[0012] In addition, the water tank can be easily replenished with fire-fighting water through the inlet, and the pump delivers the water in the tank to the nozzles through the water pipes, ensuring a continuous supply of fire-fighting water and providing strong support for fire-fighting work. The equipment is also equipped with a storage box to store fire extinguishers and other fire-fighting equipment. In emergencies, firefighters can quickly obtain additional fire-fighting supplies, further enhancing their fire-fighting capabilities and improving their ability to respond to complex fire situations. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;
[0015] Figure 3 This is a schematic diagram of the internal structure of the base plate of this utility model;
[0016] Figure 4 This is a schematic diagram of the internal structure of the mounting shell of this utility model;
[0017] Figure 5 This is a schematic diagram of the internal structure of the fixed shell of this utility model;
[0018] Figure 6 For the present utility model Figure 5 Enlarged view of the structure at point A in the middle.
[0019] The components represented by each number in the attached diagram are listed below: 1. Base plate; 2. Casters; 3. Scissor lift frame; 4. Fixing plate; 5. Slide groove; 6. Limiting shaft; 7. Roller; 8. Threaded rod; 9. Drive motor; 10. Mounting housing; 11. Water tank; 1101. Water inlet; 12. Placement box; 13. Box door; 14. Fixing housing; 15. Rack; 16. Half gear; 17. Nozzle; 18. Pump; 19. Water pipe; 20. Screw; 21. Worm gear; 22. Worm. Detailed Implementation
[0020] 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.
[0021] This utility model provides a technical solution: such as Figures 1-6The portable fire-fighting equipment shown includes a base plate 1, a scissor lift frame 3 mounted on top of the base plate 1, and sliding grooves 5 formed on the inner walls of the front and rear sides of the base plate 1. A limiting shaft 6 is fixedly installed on one side of the bottom of the scissor lift frame 3, and the limiting shaft 6 is slidably connected to the sliding groove 5. A roller 7 is also rotatably mounted on the limiting shaft 6 via a bearing, and the roller 7 contacts the base plate 1. A fixing plate 4 is also mounted on top of the scissor lift frame 3, and a threaded rod 8 is rotatably mounted inside the fixing plate 4 via a bearing. The threaded rod 8 passes through a mounting rod on one side of the scissor lift frame 3 and is threadedly connected to the mounting rod. Rotating the threaded rod 8 allows for the movement of the scissor lift frame 3. The scissor lift frame 3 adjusts the height of the fixed plate 4, so that the height of the device can better meet the actual use needs. A drive motor 9 is also fixedly installed on one outer wall of the fixed plate 4. The power output shaft of the drive motor 9 is fixedly connected to the threaded rod 8 through a coupling. At this time, the drive motor 9 can drive the threaded rod 8 to rotate, thereby adjusting the height of the fixed plate 4 through the scissor lift frame 3. Several casters 2 are also evenly fixedly installed at the bottom of the base plate 1. Under the action of the casters 2, the entire device can be moved, thereby better performing fire extinguishing work.
[0022] A mounting shell 10 is fixedly installed on the top of the mounting plate 4. A water tank 11 is installed inside the mounting shell 10. A mounting shell 14 is also fixedly installed on one side of the interior of the mounting shell 10. A rack 15 is slidably mounted on the mounting shell 14. A half-gear 16 is rotatably mounted inside the mounting shell 10. A nozzle 17 is fixedly mounted on the half-gear 16. The half-gear 16 meshes with the rack 15. When the rack 15 moves, it drives the nozzle 17 to rotate through the half-gear 16, thereby increasing the spray range of the nozzle 17. To facilitate firefighting, a pump 18 is also fixedly installed inside the housing 10 on one side of the fixed housing 14. The inlet end of the pump 18 is fixedly connected to the water tank 11, and the outlet end of the pump 18 is fixedly connected to the nozzle 17 through the water pipe 19. The pump 18 can be used to guide the water in the water tank 11 into the water pipe 19, and then spray it out from the nozzle 17 to carry out firefighting. The water tank 11 is also provided with a water inlet 1101, through which firefighting water can be added to the water tank 11.
[0023] On the other side of the mounting housing 10, there is a storage box 12. The side wall of the storage box 12 is provided with a door 13 via a hinge. Fire extinguishers and other fire-fighting equipment can be stored in the storage box 12.
[0024] Inside the fixed housing 14, a screw 20 is rotatably mounted via bearings. The screw 20 passes through and is threadedly connected to the rack 15. Rotating the screw 20 moves the rack 15. A worm gear 21 is connected to the screw 20 via a key. A worm 22 is rotatably mounted on the fixed housing 14, meshing with the worm gear 21. Rotating the worm 22 rotates the screw 20 via the worm gear 21, thereby adjusting the spray angle of the nozzle 17 through the rack 15 and the half gear 16, thus ensuring the efficiency of the device. A servo motor is also fixedly mounted at the bottom of the fixed housing 14. The power output shaft of the servo motor is fixedly connected to the worm 22 via a coupling, allowing the servo motor to drive the worm 22 to rotate.
[0025] Working Principle: The device has a base plate 1 at its bottom, with casters 2 evenly installed on its bottom, allowing for flexible movement of the entire device and facilitating firefighting operations in different locations. A scissor lift frame 3 is located at the top of the base plate 1, with a fixed plate 4 connected to its top. The fixed plate 4 contains a threaded rod 8, which is threadedly connected to a rod mounted on one side of the scissor lift frame 3 and is driven to rotate by a drive motor 9. After the drive motor 9 starts, the threaded rod 8 rotates, adjusting the height of the fixed plate 4 via the scissor lift frame 3 to meet the height requirements of different firefighting scenarios.
[0026] The mounting plate 4 is equipped with a mounting shell 10, which contains a water tank 11. Fire extinguishing water can be added to the water tank 11 through the water inlet 1101.
[0027] One side of the mounting housing 10 has a fixed housing 14, inside which a screw 20 passes through and is threadedly connected to a rack 15. Rotating the screw 20 moves the rack 15. A worm gear 21 on the screw 20 meshes with a worm 22, which is driven by a servo motor to rotate, thus rotating the screw 20 and moving the rack 15. Inside the mounting housing 10, a half-gear 16 rotates and meshes with the rack 15. When the rack 15 moves, it drives the half-gear 16 to rotate, thereby adjusting the spray angle of the nozzle 17. The pump 18 directs water from the water tank 11 through a water pipe 19 to the nozzle 17 for fire extinguishing. On the other side of the mounting housing 10, a storage box 12, through a door 13, can store fire extinguishers and other fire-fighting equipment for emergencies.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A movable fire-fighting equipment, comprising a base plate (1), a scissor lifting frame (3) is arranged on the top of the base plate (1), and a plurality of universal wheels (2) are uniformly and fixedly arranged on the bottom of the base plate (1), characterized in that: The top of the scissor lift frame (3) is also provided with a fixing plate (4). Inside the fixing plate (4), a threaded rod (8) is rotatably provided via a bearing. The threaded rod (8) passes through a mounting rod on one side of the scissor lift frame (3) and is threadedly connected to the mounting rod. A mounting shell (10) is fixedly installed on the top of the fixing plate (4). A water tank (11) is provided inside the mounting shell (10). A fixing shell (14) is also fixedly installed on one side inside the mounting shell (10). A rack (15) is slidably provided on the fixing shell (14). Inside the housing (10), a half gear (16) is rotatably mounted, and a nozzle (17) is fixedly mounted on the half gear (16). The half gear (16) meshes with the rack (15). Inside the housing (10), a pump (18) is fixedly mounted on one side of the fixed housing (14). The inlet end of the pump (18) is fixedly connected to the water tank (11). The outlet end of the pump (18) is fixedly connected to the nozzle (17) through a water pipe (19). The water tank (11) is also provided with a water inlet (1101).
2. A mobile fire fighting apparatus according to claim 1, wherein: The base plate (1) has a sliding groove (5) on its front and rear inner walls. The scissor lifting frame (3) has a limiting shaft (6) fixedly installed on one side of its bottom. The limiting shaft (6) is slidably connected to the sliding groove (5). The limiting shaft (6) is also equipped with a roller (7) through a bearing. The roller (7) is in contact with the base plate (1).
3. A mobile fire fighting apparatus according to claim 1, wherein: Inside the fixed housing (14), a screw (20) is rotatably mounted via a bearing. The screw (20) passes through the rack (15) and is threadedly connected to the rack (15). Rotating the screw (20) will drive the rack (15) to move. A worm gear (21) is also mounted on the screw (20) via a key. A worm (22) is also rotatably mounted on the fixed housing (14). The worm (22) and the worm gear (21) mesh with each other.
4. A mobile fire fighting apparatus according to claim 1, wherein: A placement box (12) is provided on the other side of the mounting shell (10), and a door (13) is provided on the side wall of the placement box (12) via a hinge.
5. A mobile fire fighting apparatus according to claim 1, wherein: A drive motor (9) is also fixedly installed on one side of the outer wall of the fixed plate (4), and the power output shaft of the drive motor (9) is fixedly connected to the threaded rod (8) through a coupling.
6. A mobile fire fighting apparatus according to claim 3, wherein: A servo motor is also fixedly installed at the bottom of the fixed housing (14), and the power output shaft of the servo motor is fixedly connected to the worm gear (22) through a coupling.