A new portable motorized fire pump

By using a motor-driven gear system and a circular plate and screw adjustment design, the fire pump's casters can be retracted and extended, solving the problem of casters being easily damaged, improving the fire pump's portability and the casters' service life, and enhancing ground adaptability and operational stability.

CN224364577UActive Publication Date: 2026-06-16四川雷捷特消防科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
四川雷捷特消防科技有限公司
Filing Date
2025-07-14
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing fire pumps are supported by casters during operation, which can easily lead to damage to the casters and reduce their service life.

Method used

A new type of portable motorized fire pump was designed. The motor drives the active gear and driven gear to mesh and drive the linkage rod, which realizes the folding and unfolding of the casters. Combined with the circular plate and screw, the height can be adjusted to adapt to uneven ground and avoid the weight being concentrated on the casters.

🎯Benefits of technology

It improves the portability and mobility of the fire pump, extends the service life of the casters, reduces the swaying and bumping of the fire pump during operation, and protects the fire pump body.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224364577U_ABST
    Figure CN224364577U_ABST
Patent Text Reader

Abstract

The utility model discloses a portable novel motorized fire pump belongs to fire pump technical field, it includes box body, the box body top fixedly connected with fire pump body, fixedly connected with motor on the box body, the output of motor is fixedly connected with first rotary lever, the inside rotation of box body is connected with second rotary lever through bearing. This portable novel motorized fire pump, through setting round plate, driving gear, driven gear, linkage rod, carousel, motor and first rotary lever, this fire pump can conveniently spread and take up universal wheel, when universal wheel spreads, can conveniently shift fire pump body, improves the mobility and portability of fire pump body, when universal wheel takes up, can support the box body and fire pump body through round plate, avoids the weight always concentrating on universal wheel, can effectively avoid universal wheel damage, improves the service life of universal wheel.
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Description

Technical Field

[0001] This utility model belongs to the field of fire pump technology, specifically a portable new type of motorized fire pump. Background Technology

[0002] The primary function of a fire pump is to provide sufficient pressure and flow to the fire protection system, ensuring that fire water can reach the fire scene quickly and effectively. It is commonly used in building fire protection systems, fire trucks, and fire extinguishing systems in industrial sites, and is a critical piece of equipment for protecting life and property. Currently, fire pumps typically require being moved to a designated location using casters at the bottom before being started. However, because the fire pump relies on the casters for support during operation, these casters are prone to damage, reducing their lifespan. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a portable new type of motorized fire pump, which solves the problem that the fire pump is supported by casters during operation, which easily leads to damage to the casters and reduces their service life.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable new type of motorized fire pump, including a housing, a fire pump body fixedly connected to the top of the housing, a motor fixedly connected to the housing, a first rotating rod fixedly connected to the output end of the motor, a second rotating rod rotatably connected inside the housing via a bearing, a driving gear fixedly connected to the end of the first rotating rod away from the motor, and a driven gear fixedly connected to one end of the second rotating rod.

[0005] The driven gear meshes with the driving gear. Both the driven gear and the driving gear are rotatably connected to a linkage rod via a rotating shaft. One end of the linkage rod is rotatably connected to a turntable via a rotating shaft. A rotating column is fixedly connected to the turntable. Two fixed blocks are fixedly connected to the rotating column. A connecting plate is fixedly connected to the bottom of the fixed blocks. A caster wheel is fixedly connected to the bottom of the connecting plate.

[0006] As a further embodiment of this utility model: the first rotating rod is rotatably connected to the inside of the box body through a bearing, and a fixing plate is fixedly connected to both sides of the box body.

[0007] As a further embodiment of this utility model: the rotating column is rotatably connected to the inside of the box body via a bearing, and two screws are threadedly connected to the fixing plate.

[0008] As a further embodiment of this utility model: a hexagonal nut is fixedly connected to the top end of the screw, and a circular plate is fixedly connected to the bottom end of the screw.

[0009] As a further embodiment of this utility model: the number of rotating columns is two, and the two rotating columns are symmetrically arranged about the middle of the box.

[0010] As a further embodiment of this utility model: the number of casters is four, and the four casters are located at the four corners of the bottom of the box.

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

[0012] 1. This portable new type of motorized fire pump is equipped with a circular plate, a driving gear, a driven gear, a linkage rod, a turntable, a motor, and a first rotating rod. Starting the motor drives the first rotating rod and the driving gear to rotate. Since the driving gear and driven gear are meshed, when the driving gear rotates, it drives the driven gear to rotate. The driven gear and driving gear respectively drive two linkage rods to rotate. Because the linkage rods are eccentrically designed, when the driven gear and driving gear rotate, under the linkage action of the linkage rods, they drive the turntable and rotating column to rotate. This causes the two rotating columns to rotate synchronously but in opposite directions. The rotating columns drive the fixed block, connecting plate, and casters to rotate, thus retracting the four casters. At this point, the four circular plates support the housing and the fire pump body, and the fire pump can be started. The fire pump is used in operation. When the fire pump needs to be moved, the starter motor drives the first rotating rod to rotate in the opposite direction. Similarly, the four casters will rotate in the opposite direction, thus unfolding the casters. Tightening the hexagonal nut drives the screw to rotate, thereby moving the circular plate up a certain distance. At this time, the casters support the box and the fire pump body, allowing the fire pump to be moved. The fire pump can easily unfold and retract the casters. When the casters are unfolded, the fire pump body can be easily moved, improving the mobility and portability of the fire pump body. When the casters are retracted, the circular plate supports the box and the fire pump body, preventing the weight from being concentrated on the casters, effectively preventing damage to the casters and extending their service life.

[0013] 2. This portable new type of motorized fire pump features circular plates, screws, and hexagonal nuts. During use, tightening the hexagonal nuts rotates the screw. Since the screw is threaded onto a fixed plate, its rotation causes the circular plates to move upwards or downwards until all four plates are in contact with the ground. Because the four circular plates are independently designed, their height can be adjusted to accommodate uneven ground, ensuring a stable placement of the fire pump body and preventing excessive swaying and bumping during operation, thus reducing damage to the fire pump body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the box body of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the turntable of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the motor of this utility model;

[0018] In the diagram: 1. Box body; 2. Fire pump body; 3. Motor; 4. Fixing plate; 5. Screw; 6. Hexagonal nut; 7. Circular plate; 8. First rotating rod; 9. Second rotating rod; 10. Rotating column; 11. Driven gear; 12. Driven gear; 13. Turntable; 14. Fixing block; 15. Connecting plate; 16. Caster wheel; 17. Linkage rod. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figure 1-4 As shown, this utility model provides a technical solution: a portable new type of motorized fire pump, including a box body 1, a fire pump body 2 fixedly connected to the top of the box body 1, a motor 3 fixedly connected to the box body 1, a first rotating rod 8 fixedly connected to the output end of the motor 3, the first rotating rod 8 being rotatably connected to the inside of the box body 1 through a bearing, a fixing plate 4 fixedly connected to both sides of the box body 1, and a second rotating rod 9 being rotatably connected to the inside of the box body 1 through a bearing.

[0021] The first rotating rod 8 has a drive gear 12 fixedly connected to one end away from the motor 3, and a driven gear 11 fixedly connected to one end of the second rotating rod 9. The driven gear 11 meshes with the drive gear 12. Both the driven gear 11 and the drive gear 12 are rotatably connected to a linkage rod 17 via a rotating shaft. Because the linkage rod 17 is provided and is eccentrically set, when the driven gear 11 and the drive gear 12 rotate, the turntable 13 and the rotating column 10 will rotate under the linkage action of the linkage rod 17, which facilitates the synchronous rotation of the two rotating columns 10. There are two rotating columns 10, which are symmetrically arranged about the middle of the box 1.

[0022] One end of the linkage rod 17 is rotatably connected to the turntable 13 via a rotating shaft. A rotating column 10 is fixedly connected to the turntable 13. The rotating column 10 is rotatably connected to the inside of the box 1 via a bearing. Two screws 5 are threadedly connected to the fixing plate 4. Because of the screws 5, the height of the circular plate 7 can be adjusted by rotating the hexagonal nut 6 to drive the screws 5 to rotate, so as to adapt to the uneven ground. This allows the fire pump body 2 to be placed stably, preventing the fire pump body 2 from swaying too much and causing bumps during operation, thus reducing damage to the fire pump body 2. Two fixing blocks 14 are fixedly connected to the rotating column 10, and a connecting plate 15 is fixedly connected to the bottom of the fixing block 14.

[0023] The bottom of the connecting plate 15 is fixedly connected to casters 16. When the casters 16 are unfolded, the fire pump body 2 can be easily moved, improving the mobility and portability of the fire pump body 2. When the casters 16 are retracted, the box 1 and the fire pump body 2 can be supported by the circular plate 7, avoiding the weight being concentrated on the casters 16, effectively preventing damage to the casters 16 and extending their service life. There are four casters 16, which are located at the four corners of the bottom of the box 1. The top of the screw 5 is fixedly connected to a hexagonal nut 6, and the bottom of the screw 5 is fixedly connected to a circular plate 7. The circular plate 7 increases the contact area between the screw 5 and the ground, and the support stability is greatly improved by the larger area of ​​the circular plate 7.

[0024] The working principle of this utility model is as follows:

[0025] In use, turning the hexagonal nut 6 drives the screw 5 to rotate. Since the screw 5 is threaded onto the fixed plate 4, when the screw 5 rotates, it can drive the circular plates 7 to move upwards or downwards until all four circular plates 7 are in contact with the ground. At this time, the motor 3 is started, driving the first rotating rod 8 and the driving gear 12 to rotate. Since the driving gear 12 meshes with the driven gear 11, when the driving gear 12 rotates, it can drive the driven gear 11 to rotate. The driven gear 11 and the driving gear 12 respectively drive the two linkage rods 17 to rotate. Since the linkage rods 17 are eccentrically set, when the driven gear 11 and the driving gear 12 rotate, under the linkage action of the linkage rods 17, they will drive the turntable 13 and the rotating column 10 to rotate. The two rotating columns 10 rotate synchronously in opposite directions. The rotating columns 10 drive the fixed block 14, connecting plate 15, and casters 16 to rotate, thereby retracting the four casters 16. At this time, the four circular plates 7 support the box 1 and the fire pump body 2, and the fire pump body 2 can be started for use. When the fire pump needs to be moved, the starting motor 3 drives the first rotating rod 8 to rotate in the opposite direction. Similarly, the four casters 16 will rotate in the opposite direction, thereby unfolding the casters 16. Tightening the hexagonal nut 6 drives the screw 5 to rotate, thereby moving the circular plate 7 up a certain distance. At this time, the casters 16 support the box 1 and the fire pump body 2, and the fire pump can be moved.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A portable novel motorized fire pump, comprising a housing (1), characterized in that: A fire pump body (2) is fixedly connected to the top of the box (1), a motor (3) is fixedly connected to the box (1), a first rotating rod (8) is fixedly connected to the output end of the motor (3), a second rotating rod (9) is rotatably connected inside the box (1) through a bearing, a drive gear (12) is fixedly connected to the end of the first rotating rod (8) away from the motor (3), and a driven gear (11) is fixedly connected to one end of the second rotating rod (9); The driven gear (11) meshes with the driving gear (12). Both the driven gear (11) and the driving gear (12) are rotatably connected to a linkage rod (17) via a rotating shaft. One end of the linkage rod (17) is rotatably connected to a turntable (13) via a rotating shaft. A rotating column (10) is fixedly connected to the turntable (13). Two fixed blocks (14) are fixedly connected to the rotating column (10). A connecting plate (15) is fixedly connected to the bottom of the fixed block (14). A universal wheel (16) is fixedly connected to the bottom of the connecting plate (15).

2. The portable novel motorized fire pump according to claim 1, characterized in that: The first rotating rod (8) is rotatably connected to the inside of the box (1) via a bearing, and a fixing plate (4) is fixedly connected to both sides of the box (1).

3. A portable novel motorized fire pump according to claim 2, characterized in that: The rotating column (10) is rotatably connected to the inside of the box (1) via a bearing, and two screws (5) are threadedly connected to the fixing plate (4).

4. A portable novel motorized fire pump according to claim 3, characterized in that: A hexagonal nut (6) is fixedly connected to the top end of the screw (5), and a circular plate (7) is fixedly connected to the bottom end of the screw (5).

5. A portable novel motorized fire pump according to claim 1, characterized in that: The number of rotating columns (10) is two, and the two rotating columns (10) are symmetrically arranged about the middle of the box (1).

6. A portable novel motorized fire pump according to claim 1, characterized in that: The number of the universal wheels (16) is four, and the four universal wheels (16) are located at the four corners of the bottom of the box (1).