CN111706556A - An anti-clogging water intake fire pump - Google Patents

Abstract

The invention belongs to the field of fire-fighting water pumps, and in particular relates to an anti-clogging water-intake fire-fighting water pump, comprising a pump body, a water intake pipe and a water outlet pipe. A fixing ring is installed on the side wall of the groove, a ring magnet matching the fixing ring is arranged on the side wall of the filter screen, and a purification strip is arranged on the surface of the filter screen, and the purification strip is fixed with the inner side wall of the installation groove A rotating shaft is fixed through the center of the filter screen. One end of the rotating shaft is circumferentially arranged with a plurality of fan blades. The rotating shaft is provided with a deflection mechanism for driving the deflection of the fan blades. The inner side wall of the water intake pipe Two scrapers are rotatably connected on the upper side, and the scrapers are connected with the rotating shaft through a transmission mechanism. The invention can prevent the impurities in the water from entering the fire pump from the water intake pipe through the filter screen and the scraper, causing blockage or damage, and at the same time, the impurities attached to the water intake pipe can be removed in time to avoid congestion and affect the water intake efficiency of the fire pump.

Description

An anti-clogging water intake fire pump

technical field

The invention belongs to the field of fire-fighting water pumps, in particular to an anti-clogging water-intake fire-fighting water pump.

Background technique

Fire water pump is an important equipment for fire fighting and rescue. It plays an extremely important role in fire fighting. Compared with domestic water pumps and production water pumps, fire water pumps should have higher performance requirements. Fire water pumps need to ensure constant water pressure and water volume. In order to ensure the effect of fast and stable fire fighting, the existing fire trucks will fetch water at the fire hydrants beside the city roads. When fetching water, first connect the fire hydrants to the fire pumps with the pipes carried on the vehicle.

Due to the uncertainty of the location of the fire, the water intake locations are more diverse. For example, in small towns or rural areas, it is necessary to use water pipelines to obtain water from the nearby pond, which is also extracted by fire pumps. There will be a lot of garbage, impurities, dead leaves and branches and other debris, which will easily cause the fire pump to block, which will lead to the inability to effectively control the fire. Therefore, it is necessary to do a good job in filtering protection to prevent large impurities from entering the pump and blocking the pump. In severe cases, it may cause damage to the pump, while the existing fire pump is only equipped with a layer of filter to play the role of filtering protection. The filtering effect is poor, and the problem of filter blockage still exists. During the process, impurities in the water are easily attached to the water intake pipe, which affects the water intake of the water intake pipe over time, and affects the water pressure and water volume specified by the fire pump.

To this end, we propose an anti-clogging water intake fire pump to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problem that the above-mentioned fire water pump is easy to block and cannot guarantee its water intake, and to provide an anti-clogging water intake fire pump with stable water intake and not easy to block.

In order to achieve the above purpose, the present invention adopts the following technical solutions: an anti-clogging water intake fire-fighting water pump, comprising a pump body, a water intake pipe and a water outlet pipe, the water intake pipe is provided with an installation groove, and a filter screen is rotated in the installation groove, A fixing ring is installed on the side wall of the installation groove, a ring magnet matching the fixing ring is arranged on the side wall of the filter screen, and a purification strip is provided on the surface of the filter screen, and the purification strip is connected to the installation groove. The inner side wall is fixed, and a rotating shaft is fixed through the center of the filter screen. One end of the rotating shaft is circumferentially arranged with a plurality of fan blades. The rotating shaft is provided with a deflection mechanism for driving the deflection of the fan blades. The water intake pipe Two scrapers are rotatably connected on the inner side wall of the squeegee, and the scrapers are connected with the rotating shaft through a transmission mechanism.

In the above-mentioned anti-clogging water intake and firefighting pump, the fixed ring and the annular magnet repel each other with the same polarity.

In the above-mentioned anti-clogging water intake fire pump, the cross section of the purification strip is arranged in a trapezoid shape, and the angle between the side walls on both sides of the purification strip and the horizontal plane is both 30°.

In the above-mentioned anti-clogging water intake and firefighting pump, the deflection mechanism includes a cavity arranged in the rotating shaft, the cavity is rotated with a horizontal shaft, and both ends of the horizontal shaft respectively penetrate the rotating shaft and are fixed to the fan blades, and the A water wheel is arranged outside the rotating shaft, a worm is coaxially installed on the water wheel, the other end of the worm extends into the cavity, and a worm wheel is coaxially installed outside the horizontal shaft, and the worm wheel is engaged with the worm.

In the above-mentioned anti-clogging water intake fire pump, the transmission mechanism includes a gear coaxially fixed with the rotating shaft, the two scrapers are fixedly connected through a support rod, and a crown gear is fixedly installed outside the support rod, and the crown gear mesh with the gears.

In the above-mentioned anti-clogging water intake and firefighting pump, the fixing ring and the ring magnet are both composed of two semi-ring magnets with opposite magnetic poles, and the fixing ring and the ring magnet are rotatably connected by a vibration spring.

Compared with the existing technology, the advantages of the anti-clogging water intake fire pump are:

1. In the present invention, by setting the fan blades, when the fire fighting water flows in the water intake pipe, the fan blades are driven to rotate, and the rotating shaft drives the filter screen to rotate, and the contact probability of the rotating filter screen and the sundries in the water is greatly increased, so that the filter screen is not suitable for the water. The ability to capture and filter debris is greatly increased. At the same time, due to the rapid rotation of the filter screen, the debris attached to the surface of the filter screen is thrown into the surrounding installation grooves along the surface of the filter screen under the action of centrifugal force to avoid debris on the surface of the filter screen. Accumulation, causing the problem of pump blockage.

2. In the present invention, by setting the purification strip, the position of the purification strip is fixed, and the filter screen rotates relative to the purification strip, and the debris with strong adhesion on the surface of the filter screen is scraped off by the purification strip, which further reduces the problem of filter screen clogging. possibility of occurrence.

3. In the present invention, by setting a scraper, the fan blade can drive the scraper to rotate through the rotating shaft, and the scraper rotates and scrapes on the inner wall of the water intake pipe to scrape off the sediment and impurities attached to the inner wall of the water intake pipe, and the inner wall of the water intake pipe is cleaned. clean.

4. In the present invention, by setting the water wheel, under the impact of the water flow, the water wheel can rotate slowly, and then the turbine is driven to rotate by the worm, and the fan blade is slowly deflected by the horizontal axis, that is, with the rotation of the water wheel, the blade of the fan blade is rotated. If the angle is deflected at any time, the driving speed and rotation direction of the water flow to the fan blade will change at any time, and then the forward and reverse rotation of the fan blade will be realized periodically, which will drive the scraper to rotate forward and reverse repeatedly, so that the The inner wall is cleaned in all directions, and it is conducive to scraping off the impurities with strong adhesion, which effectively improves the cleanliness of the water intake pipe and avoids the impact of impurity congestion on the water inlet efficiency of the pump.

5. In the present invention, by arranging a fixed ring and a ring magnet, the filter screen can drive the ring magnet to rotate, and the fixed ring position is fixed, the ring magnet and the fixed ring rotate relative to each other, and under the action of the magnetic force, the fixed ring produces periodic changes to the ring magnet. Attractive and repulsive forces, in turn, drive the vibrating spring to repeatedly stretch and compress, causing the filter to vibrate back and forth, which can further shake off the impurities attached to the surface of the filter and ensure smooth water flow in the water intake pipe.

Description of drawings

Fig. 1 is the structural representation of a kind of anti-clogging water intake fire pump embodiment 1 provided by the present invention;

Fig. 2 is the enlarged view of A place in Fig. 1;

Fig. 3 is a top-view structural schematic diagram of a deflection mechanism in Embodiment 1 of an anti-clogging water intake fire pump provided by the present invention;

4 is a schematic structural diagram of a water wheel in Embodiment 1 of an anti-clogging water-intake fire-fighting pump provided by the present invention;

5 is a schematic structural diagram of a filter screen in Embodiment 1 of an anti-clogging water intake fire pump provided by the present invention;

6 is a schematic structural diagram of Embodiment 2 of an anti-clogging water intake fire pump provided by the present invention;

7 is a schematic structural diagram of a fixing ring in Embodiment 2 of an anti-clogging water intake fire pump provided by the present invention.

In the figure, 1 pump body, 2 water intake pipe, 3 water outlet pipe, 4 installation groove, 5 filter screen, 6 fixing ring, 7 ring magnet, 8 purification strip, 9 rotating shaft, 10 fan blade, 11 scraper, 12 cavity, 13 horizontal shaft, 14 water wheel, 15 worm, 16 worm gear, 17 gear, 18 support rod, 19 crown gear, 20 vibration spring.

Detailed ways

The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

Example 1

As shown in Figure 1-5, an anti-clogging water intake fire pump includes a pump body 1, a water intake pipe 2 and a water outlet pipe 3. The water intake pipe 2 is provided with an installation groove 4, and a filter screen 5 is rotated in the installation groove 4. A fixing ring 6 is installed on the side wall of the slot 4, and a ring magnet 7 matching the fixing ring 6 is arranged on the side wall of the filter screen 5. There is a purification strip 8, the cross section of the purification strip 8 is trapezoidal, the angle between the side walls on both sides of the purification strip 8 and the horizontal plane is 30°, the purification strip 8 is fixed with the inner side wall of the installation groove 4, and the fixing ring 6 and the horizontal plane are fixed. Under the action of the repulsive force of the ring magnet 7 , the filter screen 5 is pushed into contact with the purification strip 8 , so as to ensure the cleaning effect of the purification strip 8 on the surface of the filter screen 5 .

A rotating shaft 9 is fixed through the center of the filter screen 5, and one end of the rotating shaft 9 is circumferentially arranged with a plurality of fan blades 10. Under the impact of the water flow, the fan blades 10 can be driven by the rotating shaft 9 to rotate the filter screen 5. The deflection mechanism for driving the fan blade 10 to deflect. The deflection mechanism 1 includes a cavity 12 arranged in the rotating shaft 9. The cavity 12 rotates with a horizontal shaft 13. The two ends of the horizontal shaft 13 respectively penetrate the rotating shaft 9 and are fixed with the fan blade 10. The rotating shaft 9. A water wheel 14 is provided outside, a worm 15 is coaxially installed on the water wheel 14, and the other end of the worm 15 extends into the cavity 12 to be installed. When the blade angle that can drive the fan blade 10 is deflected, the driving speed and the rotation direction of the fan blade 10 by the water flow change constantly.

Two scrapers 11 are rotatably connected to the inner side wall of the water intake pipe 2. The scrapers 11 are connected to the rotating shaft 9 through a transmission mechanism. The transmission mechanism includes a gear 17 that is coaxially fixed with the rotating shaft 9. Fixed connection, a crown gear 19 is fixed outside the support rod 18, the crown gear 19 meshes with the gear 17, the rotating shaft can drive the scraper 11 to scrape back and forth on the inner wall of the water intake pipe 2, and remove the sediment and impurities attached to the inner wall of the water intake pipe 2. Scrape off to clean the inner wall of the water intake pipe 2 .

In this embodiment, when the fire fighting water flows in the water intake pipe 2, the fan blade 10 is pushed to rotate, and the rotating shaft 9 drives the filter screen 5 to rotate. 5. The ability to capture and filter debris in the water is greatly increased. At the same time, due to the rapid rotation of the filter screen 5, the debris attached to the surface of the filter screen 5 is thrown into the surrounding installation grooves 4 along the surface of the filter screen 5 under the action of centrifugal force. , to avoid the accumulation of debris on the surface of the filter screen 5, causing the problem of water pump blockage.

In this embodiment, the position of the purification bar 8 is fixed, and the filter screen 5 rotates relative to the purification bar 8 when the filter screen 5 rotates, and then the debris with strong adhesion on the surface of the filter screen 5 is scraped off by the purification bar 8 to further reduce the filter screen. 5 Possibility of clogging problems.

In this embodiment, the fan blade 10 can drive the gear 17 to rotate through the rotating shaft 9, and then drive the crown gear 19 meshing with the gear 17 to rotate, then the scraper 11 rotates, and the scraper 11 rotates and scrapes on the inner wall of the water intake pipe 2 to remove The sediment and impurities adhering to the inner wall of the water intake pipe 2 are scraped off, and the inner wall of the water intake pipe 2 is cleaned.

In this embodiment, under the impact of the water flow, the water wheel 14 can rotate slowly, and then the turbine 16 is driven to rotate through the worm 15, and the fan blade 10 is slowly deflected through the horizontal shaft 13, that is, with the rotation of the water wheel 14, the fan blade When the blade angle of 10 is deflected at any time, the driving speed and rotation direction of the water flow to the fan blade 10 are changed at any time, and then the forward and reverse rotation of the fan blade 10 is realized periodically, which drives the scraper 11 to repeat the forward and reverse directions. Rotating, the inner wall of the water intake pipe 2 is cleaned in all directions, and it is beneficial to scrape off impurities with strong adhesion, which effectively improves the cleanliness of the water intake pipe 2 and avoids the impact of impurity congestion on the water inlet efficiency of the pump.

Example 2

As shown in FIGS. 6-7 , the difference between this embodiment and Embodiment 1 is that the fixing ring 6 and the ring magnet 7 are both composed of two semi-ring magnets with opposite magnetic poles, and the fixing ring 6 and the ring magnet 7 pass through each other. The vibration spring 20 is rotatably connected. Specifically, the fixed ring 6 is provided with an annular chute, and one end of the spring 20 close to the fixed ring 6 is fixedly connected with a slider. The slider can slide in the chute to realize the spring 20 and the fixed ring 6 Rotational connection between.

When the filter screen 5 rotates, it can drive the ring magnet 7 and the vibration spring 20 to rotate, and the fixed ring 6 is in a fixed position. Because the relative rotation between the spring 20 and the fixed ring 6 can occur, the ring magnet 7 and the fixed ring 6 rotate relative to each other. Under the action, the fixed ring 6 produces periodically changing attractive and repulsive forces to the ring magnet 7, and then drives the vibration spring 20 to repeatedly stretch and compress, causing the filter screen 5 to vibrate back and forth, which can further shake off the impurities attached to the surface of the filter screen 5. , to ensure smooth water flow in the water intake pipe 2.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (6)

1. The utility model provides a prevent blockking up water intaking fire control water pump, includes the pump body (1), intake pipe (2) and outlet pipe (3), its characterized in that, be equipped with mounting groove (4) in intake pipe (2), the internal rotation of mounting groove (4) has filter screen (5), install solid fixed ring (6) on the lateral wall of mounting groove (4), be equipped with annular magnet (7) that match with solid fixed ring (6) on the lateral wall of filter screen (5), the surface of filter screen (5) is equipped with purification strip (8), purification strip (8) are fixed with the inside wall of mounting groove (4), the center department of filter screen (5) runs through and is fixed with pivot (9), the one end circumference of pivot (9) has arranged multi-disc flabellum (10), be equipped with the deflection mechanism that is used for driving flabellum (10) to deflect in pivot (9), it is connected with scraper blade (11) to rotate on the inside wall, the scraper (11) is in transmission connection with the rotating shaft (9) through a transmission mechanism.

2. The anti-clogging water intaking fire pump according to claim 1, wherein the fixed ring (6) and the ring magnet (7) repel each other with like poles.

3. The anti-clogging water taking and fire fighting water pump according to claim 1, characterized in that the cross section of the purifying strip (8) is trapezoidal, and the included angles between the side walls on both sides of the purifying strip (8) and the horizontal plane are both 30 °.

4. The anti-clogging water taking and fire fighting water pump according to claim 1, characterized in that the deflection mechanism 1 comprises a cavity (12) arranged in a rotating shaft (9), the cavity (12) rotates to form a horizontal shaft (13), two ends of the horizontal shaft (13) respectively penetrate through the rotating shaft (9) and are fixed with fan blades (10), a water wheel (14) is arranged outside the rotating shaft (9), a worm (15) is coaxially arranged on the water wheel (14), the other end of the worm (15) extends into the cavity (12) to form a worm wheel (16), and the worm wheel (16) is coaxially arranged outside the horizontal shaft (13) and is meshed with the worm (15).

5. The anti-clogging water taking fire pump according to claim 1, wherein the transmission mechanism comprises a gear (17) coaxially fixed with the rotating shaft (9), the two scrapers (11) are fixedly connected through a support rod (18), a crown gear (19) is fixedly installed outside the support rod (18), and the crown gear (19) is meshed with the gear (17).

6. The anti-clogging water intaking fire pump according to claim 1, characterized in that the fixed ring (6) and the ring magnet (7) are each composed of two semi-ring magnets with opposite magnetic poles, and the fixed ring (6) and the ring magnet (7) are rotatably connected through a vibrating spring (20).

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