Forest fire fighting electric priming pump

Abstract

The utility model discloses a forest fire-fighting electric water intake pump, including casing and water intake component, the inside setting of casing is provided with baffle, and the baffle divides the casing into battery chamber and water intake chamber, is provided with the battery and control panel of mutual connection in battery chamber, water intake component includes the drive part and impeller disc of setting in the water intake chamber, and the transmission part is connected between the two, and the transmission part one side elasticity of towards impeller disc is provided with the clamping tooth, and the bottom of impeller disc corresponds the clamping groove of setting up in the clamping tooth, and the clamping tooth is attached in the clamping groove, and the drive part is electrically connected in control panel. The utility model technical scheme can carry out overload protection to motor, prolongs the service life of water pump, and saves the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and in particular to an electric water pump for forest fire fighting. Background Technology

[0002] The forest fire-fighting electric water pump is a device that uses an electric motor as a power source to drive the pump body to guide water from a low place to a high place or to transport it. It is used to solve the water intake problem of the high-pressure pump in forest fire fighting and is compatible with centrifugal pumps, diaphragm pumps, plunger pumps, etc. Its working principle is to use a battery pack as a power source to drive an underwater motor and centrifugal impeller, and pump water through the inlet pipe to the inlet of the fire-fighting high-pressure pump.

[0003] Existing electric water pumps for forest fire fighting lack a motor load shearing structure. When the pump impeller is jammed by weeds, gravel, or other debris, the motor is overloaded. Long-term use can easily cause motor overload damage, shortening the motor's lifespan and increasing maintenance costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a forest fire-fighting electric water pump that can protect the motor from overload, extend the service life of the pump, and save maintenance costs.

[0005] To achieve the above objectives, this utility model proposes a forest fire-fighting electric water pump, comprising:

[0006] The housing has an internal partition that divides the interior of the housing into a battery chamber and a water inlet chamber. The battery chamber contains a battery and a control board that are interconnected.

[0007] The water intake assembly includes a drive component and an impeller disk disposed within the water intake chamber, and a transmission component is connected between the two. The side of the transmission component facing the impeller disk is elastically provided with locking teeth. The bottom of the impeller disk is provided with a locking groove corresponding to the locking teeth. The locking teeth fit and abut against the locking groove. The drive component is electrically connected to the control board.

[0008] In one embodiment of this utility model, a telescopic groove is provided on the surface of the transmission component, a spring is provided in the telescopic groove, and the locking teeth abut against the end of the spring.

[0009] In one embodiment of this utility model, the width of the snap-fit ​​teeth gradually decreases along the direction away from the transmission member, and the inner wall shape of the snap-fit ​​groove corresponds to the shape of the snap-fit ​​teeth.

[0010] In one embodiment of this utility model, a through groove is provided circumferentially at the bottom of the impeller disk, the position of the snap-fit ​​groove coincides with part of the through groove, and the depth of the through groove is less than the depth of the snap-fit ​​groove.

[0011] In one embodiment of the present invention, the housing has a magnetic charging section on its surface corresponding to the battery.

[0012] In one embodiment of the present invention, the shell has several through holes on the surface corresponding to the water inlet cavity.

[0013] This invention provides a locking groove and locking teeth between the transmission component and the impeller disk. These grooves and teeth engage to ensure a stable connection between them. A spring is installed between the locking teeth and the transmission component. The spring exerts a pushing force on the locking teeth, causing them to engage in the locking grooves on the impeller disk. Simultaneously, the locking teeth, under compressive force, press against the spring and retract into the transmission component. When the drive component is running, the locking teeth, inserted into the locking grooves, drive the impeller disk to rotate for normal water intake. When the impeller is jammed by weeds, gravel, or other debris in the water, the impeller disk stops moving, but the drive component continues to rotate. The locking teeth, under the strong pressure of the inner wall of the locking grooves, retract into the transmission component, causing slippage between the locking teeth and the impeller disk, thus protecting the motor from overload and stall damage. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is an exploded view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is an exploded view of the transmission component of this utility model;

[0018] Figure 4 This is a schematic diagram of the bottom structure of the impeller disk of this utility model.

[0019] Explanation of icon numbers:

[0020] 1. Housing; 11. Partition plate; 12. Battery cavity; 13. Water inlet cavity; 14. Magnetic charging part; 15. Through hole; 2. Battery; 3. Control board; 4. Drive component; 5. Impeller disk; 51. Snap-fit ​​groove; 52. Through groove; 6. Transmission component; 61. Snap-fit ​​tooth; 62. Telescopic groove; 63. Spring.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] Reference Figures 1 to 4 This utility model proposes a forest fire-fighting electric water pump, including a housing 1 and a water intake assembly. The housing 1 is provided with a partition 11, which divides the interior of the housing 1 into a battery chamber 12 and a water intake chamber 13. The battery chamber 12 is provided with a battery and a control board 3 connected to each other. The water intake assembly includes a drive component 4 and an impeller disk 5 disposed in the water intake chamber 13, and a transmission component 6 is connected between the two. The side of the transmission component 6 facing the impeller disk 5 is elastically provided with a locking tooth 61. The bottom of the impeller disk 5 is provided with a locking groove 51 corresponding to the locking tooth 61. The locking tooth 61 fits and abuts against the locking groove 51. The drive component 4 is electrically connected to the control board 3.

[0024] Understandably, the housing 1 is the external structure of the pump, protecting and supporting the internal components, while the water intake assembly is the core component for realizing the water intake function. Inside the housing 1, there is a partition 11, which divides the interior of the housing 1 into two chambers: a battery chamber 12 and a water intake chamber 13. The battery chamber 12 houses the battery 2, providing power; the water intake chamber 13 houses the mechanical components related to water intake. The battery chamber 12 contains the battery 2 and a control board 3. The battery 2 stores and provides electrical energy, while the control board 3 regulates the electrical energy output of the battery 2 and controls the operation of the entire system.

[0025] The water intake assembly includes a drive unit 4 and an impeller disk 5 disposed within the water intake chamber 13. The drive unit 4 is a device for providing mechanical power to drive the impeller disk 5 to induce water flow. In this example, the drive unit 4 is a servo motor. A transmission component 6 connects the drive unit 4 and the impeller disk 5, responsible for transmitting power and driving the impeller disk 5 to rotate. The drive unit 4 is electrically connected to a control board 3. The control board 3 adjusts the battery power as needed to control the operation of the drive unit 4, thereby driving the impeller disk 5 to work.

[0026] The side of the transmission component 6 facing the impeller disk 5 is provided with engaging teeth 61, which are similar to the teeth of a gear. Engaging grooves 51 are provided on the bottom of the impeller disk 5. These grooves 51 engage with the engaging teeth 61, ensuring a stable connection between the transmission component 6 and the impeller disk 5 through precise engagement. The engaging teeth 61 are elastically designed. In this example, a spring 63 is provided between the engaging teeth 61 and the transmission component 6. The spring 63 can both push the engaging teeth 61 into the engaging grooves 51 on the impeller disk 5 and compress the engaging teeth 61 under pressure, causing them to retract into the transmission component 6. When the drive unit 4 is running, the locking teeth 61 that extend into the locking groove 51 drive the impeller disk 5 to rotate and perform normal water diversion work; when the impeller is jammed by water plants, gravel and other debris in the water, the impeller disk 5 stops moving, but the drive unit 4 will still rotate at this time. The locking teeth 61 will retract into the drive unit 6 under the strong pressure of the inner wall of the locking groove 51. At this time, the locking teeth 61 will slip with the impeller disk 5, thereby protecting the motor from overload and stall damage.

[0027] Reference Figures 2 to 3 In one embodiment of this application, a telescopic groove 62 is provided on the surface of the transmission member 6, and a spring 63 is provided in the telescopic groove 62, with a locking tooth 61 abutting against the end of the spring 63.

[0028] Understandably, the surface of the transmission component 6 is designed with a telescopic groove 62. The function of this groove is to allow the engaging teeth 61 to move along the groove, giving them a telescopic function. Inside the telescopic groove 62, springs 63 are installed. The number of springs 63 can be adjusted as needed and is not limited here. Springs 63 are elastic elements, typically used to provide a certain restoring or adjusting force. They can be compressed or stretched according to external forces, possessing a certain elasticity to create an adaptive effect between structures. In this example, the bottom end of the engaging teeth 61 contacts the springs 63, and the springs 63 provide thrust to make the engaging teeth 61 abut against the engaging groove 51. When the impeller jams, the side wall of the engaging groove 51 presses against the engaging teeth 61, compressing the springs 63 and simultaneously retracting into the telescopic groove 62, causing slippage with the impeller disk 5.

[0029] Reference Figures 3 to 4 In one embodiment of this application, the width of the snap-fit ​​tooth 61 gradually decreases along the direction away from the transmission member 6, and the inner wall shape of the snap-fit ​​groove 51 corresponds to the shape of the snap-fit ​​tooth 61.

[0030] Understandably, both sides of the locking tooth 61 are inclined inward, forming a trapezoidal shape. Through the above design, on the one hand, the side of the locking tooth 61 can provide enough force to drive the impeller disk 5 to rotate without the impeller getting stuck. At the same time, the inclined side can also retract the locking tooth 61 into the telescopic groove 62 when the impeller is stuck and generates greater resistance. The inclination angle of the side of the locking tooth 61 can be adjusted according to actual needs, and is not limited here.

[0031] Reference Figure 4 In one embodiment of this application, a through groove 52 is provided circumferentially at the bottom of the impeller disk 5, the position of the snap-fit ​​groove 51 coincides with part of the through groove 52, and the depth of the through groove 52 is less than the depth of the snap-fit ​​groove 51.

[0032] Understandably, the design of the through groove 52 allows the locking teeth 61 to not be completely retracted into the telescopic groove 62. When the transmission component 6 slips with the impeller disk 5, the through groove 52 allows a portion of the locking teeth 61 to extend into the through groove 52. This prevents the transmission component 6 from completely disengaging from the impeller disk 5 and also limits their positions, keeping them connected.

[0033] Reference Figure 2 In one embodiment of this application, the housing 1 has a magnetic charging section 14 on its surface corresponding to the battery.

[0034] Understandably, a magnetic charging section 14, i.e., a charging interface with a magnetic adsorption design, is provided on the end face of the housing 1 at the battery cavity 12 end. This component allows the charger or charging device to be connected to the surface of the housing 1 by magnetic force. The advantage of the magnetic design is that it is convenient and quick to connect. The user only needs to bring the charger close to the magnetic charging section 14, and the magnetic attraction will quickly connect it, avoiding the trouble of plugging and unplugging the interface. Due to the characteristics of magnetic adsorption, it can ensure that the charging interface is always aligned with the charging component, avoiding the problem of insertion failure due to inaccurate alignment of traditional charging interfaces. Magnetic charging can also reduce interface damage caused by incorrect operation or excessive force. In addition, since the magnetic charging section 14 does not have an opening structure like traditional charging interfaces, it can reduce the risk of water entering the battery cavity 12 and improve safety.

[0035] Reference Figures 1 to 2 In one embodiment of this application, the housing 1 has a plurality of through holes 15 on the surface corresponding to the water inlet cavity 13.

[0036] Understandably, multiple holes are formed on the surface of the housing 1 at the location of the water inlet chamber 13. These holes allow water to flow through. The number and distribution of the through holes 15 can be determined according to actual design needs and are not limited here. In this example, the through holes 15 are used for the inlet and outlet of water flow. The water inlet chamber 13 inside the pump needs to be connected to the external water source through the through holes 15, and the water flow after priming needs to be discharged through the through holes 15.

[0037] The size, shape, and number of through holes 15 directly affect the working efficiency and performance of the priming pump. For example, a through hole 15 that is too small may cause poor water flow, while a through hole 15 that is too large may affect the structural strength of the casing 1. The design of the through holes 15 needs to be optimized according to the pump's working pressure, flow requirements, and physical characteristics to ensure the pump's efficient operation.

[0038] This utility model's technical solution involves setting a locking groove 51 and a locking tooth 61 between the transmission component 6 and the impeller disk 5. These locking grooves 51 and locking teeth 61 cooperate to ensure a stable connection between the transmission component 6 and the impeller disk 5. A spring 63 is provided between the locking tooth 61 and the transmission component 6. The spring 63 can both push the locking tooth 61 into the locking groove 51 on the impeller disk 5 and, under compressive force, the locking tooth 61 can also compress the spring 63 and retract into the transmission component 6. When the drive component 4 is running, the locking tooth 61, which extends into the locking groove 51, drives the impeller disk 5 to rotate for normal water diversion. When the impeller is jammed by weeds, gravel, or other debris in the water, the impeller disk 5 stops moving, but the drive component 4 will still rotate. Under the strong pressure of the inner wall of the locking groove 51, the locking tooth 61 will retract into the transmission component 6, causing the locking tooth 61 to slip against the impeller disk 5, thus protecting the motor from overload and stall damage.

[0039] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A forest fire-fighting electric water pump, characterized in that, include: The housing (1) has a partition (11) inside, which divides the interior of the housing (1) into a battery chamber (12) and a water inlet chamber (13). The battery chamber (12) is provided with a battery (2) and a control board (3) connected to each other. The water intake assembly includes a drive component (4) and an impeller disk (5) disposed in the water intake chamber (13), and a transmission component (6) is connected between the two. The transmission component (6) has a snap-fit ​​tooth (61) elastically disposed on the side facing the impeller disk (5). The bottom of the impeller disk (5) is provided with a snap-fit ​​groove (51) corresponding to the snap-fit ​​tooth (61). The snap-fit ​​tooth (61) fits and abuts against the snap-fit ​​groove (51). The drive component (4) is electrically connected to the control board (3).

2. The electric water pump for forest fire fighting according to claim 1, characterized in that, The transmission component (6) has a telescopic groove (62) on its surface, and a spring (63) is provided in the telescopic groove (62). The locking teeth (61) abut against the end of the spring (63).

3. A forest fire-fighting electric water pump according to claim 2, characterized in that, The width of the snap-fit ​​tooth (61) gradually decreases along the direction away from the transmission member (6), and the inner wall shape of the snap-fit ​​groove (51) corresponds to the shape of the snap-fit ​​tooth (61).

4. A forest fire-fighting electric water pump according to claim 3, characterized in that, The impeller disk (5) has a through groove (52) circumferentially opened at the bottom. The position of the snap-fit ​​groove (51) coincides with part of the through groove (52), and the depth of the through groove (52) is less than the depth of the snap-fit ​​groove (51).

5. A forest fire-fighting electric water pump according to claim 1, characterized in that, The housing (1) has a magnetic charging part (14) on its surface corresponding to the battery (2).

6. A forest fire-fighting electric water pump according to claim 5, characterized in that, The shell (1) has several through holes on the surface corresponding to the water inlet cavity (13).

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