Efficient and energy-saving gasoline engine water pump

Abstract

The invention discloses an efficient energy-saving gasoline engine water pump, and particularly relates to the technical field of water pumps, the efficient energy-saving gasoline engine water pump comprises a gasoline engine and a water pump, the water pump is provided with a water inlet, a water outlet and a water drinking port, and the efficient energy-saving gasoline engine water pump further comprises a connecting pipe connected to the water outlet in a penetrating mode; the water outlet pipe is in through connection with the connecting pipe through a hose, a sprinkling irrigation opening is formed in the end, away from the connecting pipe, of the water outlet pipe, and the water outlet pipe is rotationally connected to the connecting pipe; and the adjusting unit is arranged on the connecting pipe and drives the water outlet pipe to swing up and down based on the water pressure in the connecting pipe. According to the device, by arranging the adjusting unit, when the water pressure in the connecting pipe is large, the adjusting unit drives the water outlet pipe to swing downwards, so that the lift of the water outlet pipe can be adjusted, and compared with a lift adjusting mode in the prior art, the lift can still be adjusted after the closure area of the water outlet pipe is maximized; therefore, high-energy and low-efficiency phenomena of the water pump can be prevented, and high efficiency and energy conservation of the water pump are achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water pumps, and particularly relates to a high-efficiency energy-saving gasoline engine water pump. BACKGROUND

[0002] The gasoline engine water pump is a centrifugal pump device taking a gasoline engine as a power source, belongs to a light portable water pumping machine, and is mainly applied to scenes such as agricultural irrigation, emergency drainage, fire fighting and municipal engineering. The core structure is composed of a gasoline engine and a centrifugal pump, the power part adopts a reciprocating piston design, and covers a crankshaft connecting rod, fuel supply, cooling and lubrication systems.

[0003] The existing water pump is not convenient to automatically adjust the lift of the water pump when circulating pressurization or the water pump is directly connected with a pressure pipe network, and is prone to cause the lift of the water pump to be too low, resulting in high energy and low efficiency of the water pump and causing waste of energy. Therefore, according to the search, the energy-saving water pump based on the pressure difference between the inlet and outlet of the water pump is disclosed in Chinese Patent No. CN213270315U, which comprises a water pump body, a water inlet pipe is communicated with the water inlet end of the water pump body, a water outlet pipe is communicated with the water outlet end of the water pump body, a hydraulic sensor is fixedly installed on the inner wall of the water outlet pipe, a shell is communicated with the top of the water outlet pipe, a drain pipe is communicated with the top of the shell, fixed frames are fixedly connected to the top and bottom of the right side of the shell, a motor is fixedly connected to the opposite side of the right side of the fixed frame, a threaded rod is fixedly connected to the output shaft of the motor, and a threaded pipe is threadedly sleeved on the surface of the threaded rod.

[0004] The water pump in the above-mentioned prior art adjusts the lift of the water pump by adjusting the flow area of the water outlet pipe, so that the lift of the water pump can be fixed. However, the adjustment range of the lift is small. For example, when the outlet of the water outlet pipe is completely open, that is, the flow area is minimized, the lift cannot be further adjusted. Therefore, the water pump in the prior art needs to be further improved. SUMMARY

[0005] The technical problem to be solved by the application is to overcome the shortcomings of the above-mentioned prior art and provide a high-efficiency energy-saving gasoline engine water pump.

[0006] The technical scheme adopted to solve the above-mentioned technical problem is as follows: a high-efficiency energy-saving gasoline engine water pump, comprising a gasoline engine and a water pump, the water pump being provided with a water inlet, a water outlet and a drinking water outlet, further comprising: a connecting pipe connected through the water outlet; a water outlet pipe connected through the connecting pipe by a hose, one end of the water outlet pipe away from the connecting pipe being provided with a sprinkling irrigation outlet, and the water outlet pipe being rotatably connected to the connecting pipe; an adjusting unit arranged in the connecting pipe and driven by the water pressure in the connecting pipe to drive the water outlet pipe to swing up and down.

[0007] The connecting pipe is fixedly sleeved with a mounting ring adjacent to one end of the water outlet pipe, a connecting arm is rotationally connected to the periphery of the mounting ring, and one end of the connecting arm away from the mounting ring is fixedly connected to the water outlet pipe.

[0008] The adjusting unit comprises a fixed chamber connected to the connecting pipe through the fixed pipe, a first piston is coaxially and slidingly fitted in the fixed chamber, a connecting rod is coaxially and fixedly provided in the first piston, one end of the connecting rod penetrating out of the fixed chamber is connected to the water outlet pipe through a hinge structure, so that when the connecting rod moves horizontally, the water outlet pipe is correspondingly swung up and down, and a reset assembly is arranged in the fixed chamber, which enables the first piston to move away from the water outlet pipe.

[0009] The reset assembly comprises a fixed end cover arranged at the mouth of the fixed chamber, the fixed end cover is provided with a sliding hole for the free passing of the connecting rod, and an elastic member is arranged between the fixed end cover and the first piston, which enables the first piston to move away from the fixed end cover.

[0010] The elastic member is a spring arranged in the fixed chamber, and the two ends of the spring in the elastic force direction are elastically abutted against the first piston and the fixed end cover, respectively.

[0011] The hinge structure comprises a sliding pin fixedly connected to one end of the connecting rod away from the fixed chamber, an extension plate is fixedly connected to the wall surface of the water outlet pipe, the extension plate is provided with a waist-shaped hole for the insertion of the sliding pin, and the length direction of the waist-shaped hole is perpendicular to the axial direction of the water outlet pipe.

[0012] The sprinkling port is provided with a port adjusting unit, and the port adjusting unit is used for adjusting the flow area of the port of the sprinkling port.

[0013] The port adjusting unit comprises a receiving chamber fixedly connected to the sprinkling port, the receiving chamber is through-penetrating with the sprinkling port, and a gas bag is arranged in the receiving chamber, the outer periphery of the gas bag is fixedly connected to the inner wall of the receiving chamber, and the fixed chamber is provided with an inflation assembly, which is used for inflating the gas bag when the water outlet pipe swings upward.

[0014] The inflation assembly comprises an inflation chamber arranged at the end of the fixed chamber, the inflation chamber is provided with a through hole for the free passing of the connecting rod, a second piston is fixedly sleeved with the connecting rod, the second piston is coaxially and slidingly fitted in the inflation chamber, and the inflation chamber is through-penetratingly connected to the gas bag through an air pipe.

[0015] Further, the end face of the fixed end cover and the inflation chamber is sealed by a sealing ring.

[0016] The beneficial effects of the present application are as follows: 1. In the present application, by setting the adjusting unit, when the water pressure in the connecting pipe is large, the adjusting unit will drive the water outlet pipe to swing downward, so that the lift of the water outlet pipe can be adjusted. Compared with the lift adjustment method in the prior art, after the maximum cross-sectional area of the water outlet pipe is obtained, the adjustment can still be carried out, so that the high energy low efficiency phenomenon of the water pump can be prevented, and the high efficiency and energy saving of the water pump can be realized. 2. In the present application, the water pressure in the connecting pipe drives the first piston to move in the fixed bin, and can make the connecting rod move, and then through the hinge structure, when the connecting rod moves, the water outlet pipe can be driven to swing up and down along the hinge of the connecting pipe, so that the lift can be adjusted. 3. In the present application, when the connecting rod moves, the connecting rod can drive the second piston to move in the inflation bin. When the second piston moves, the air in the air bag can be returned to the inflation bin, so that the volume of the air bag is reduced, so that the cross-sectional area of the nozzle of the sprinkling irrigation port is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram of the high-efficiency and energy-saving gasoline engine water pump in the present application. Figure 2 is Figure 1 the position relationship schematic diagram of another perspective; Figure 3 is the position relationship schematic diagram of the assembled water outlet pipe, connecting pipe and fixed bin in the present application; Figure 4 is Figure 3 the explosion decomposition schematic diagram of the structure in the present application; Figure 5 is Figure 3 the position relationship schematic diagram of another perspective in the present application; Figure 6 is Figure 5 the position relationship schematic diagram of part of the structure after being cut open in the present application; Figure 7 is Figure 6 the enlarged schematic diagram of the local structure at A in the present application.

[0018] Mark: 1, gasoline engine; 2, water pump; 3, water inlet; 4, drinking water inlet; 5, water outlet; 6, water outlet pipe; 7, connecting pipe; 8, fixed bin; 9, fixed pipe; 10, inflation bin; 11, connecting rod; 12, mounting ring; 13, waist-shaped hole; 14, extension plate; 15, storage bin; 16, sprinkling irrigation port; 17, air pipe; 18, first piston; 19, spring; 20, fixed end cover; 21, sliding pin; 22, air bag; 23, hose; 24, second piston. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0020] As shown in Figures 1-7 The present embodiment provides: a high-efficiency energy-saving gasoline engine water pump, comprising a gasoline engine 1 and a water pump 2, the water pump 2 is provided with a water inlet 3, a water outlet 5 and a drinking water inlet 4, the gasoline engine 1 is used to drive the impeller of the water pump 2 to rotate, the water inlet 3 and the water outlet 5 are through the inside of the water pump 2, the drinking water inlet 4 is used to drink water for the water pump 2, the water outlet 5 is through connected with a connecting pipe 7, the mouth of the connecting pipe 7 is installed with a hose 23, the end of the hose 23 away from the connecting pipe 7 is through connected with a water outlet pipe 6, in addition, the wall surface of the water outlet pipe 6 is detachably connected with a connecting arm, the end of the connecting pipe 7 adjacent to the water outlet pipe 6 is fixedly sleeved with a mounting ring 12, the end of the connecting arm away from the water outlet pipe 6 is rotatably connected to the mounting ring 12, so that the water outlet pipe 6 is rotatably connected to the connecting pipe 7, and the end of the water outlet pipe 6 away from the connecting pipe 7 is through connected with a sprinkling head 16.

[0021] Further, the wall surface of the connecting pipe 7 is through connected with a fixed pipe 9, the end of the fixed pipe 9 away from the connecting pipe 7 is horizontally through connected with a fixed bin 8, the end of the fixed bin 8 towards the water outlet pipe 6 is open, in addition, the first piston 18 is coaxially and slidingly fitted and installed in the fixed bin 8, the connecting rod 11 is coaxially and fixedly penetrated through the first piston 18, the end of the fixed bin 8 adjacent to the water outlet pipe 6 is fixedly installed with a fixed end cover 20, the fixed end cover 20 is provided with a sliding hole for the free passing of the connecting rod 11, in addition, the periphery of the connecting rod 11 is sleeved with a spring 19, the two ends of the spring 19 in the elastic force direction are respectively elastically abutted against the first piston 18 and the fixed end cover 20, and the spring 19 has potential energy for the first piston 18 to move away from the fixed end cover 20, the end of the connecting rod 11 away from the fixed bin 8 is fixedly connected with a sliding pin 21, the wall surface of the water outlet pipe 6 is fixedly connected with an extension plate 14, the extension plate 14 is provided with a waist-shaped hole 13 for the insertion of the sliding pin 21, and the length direction of the waist-shaped hole 13 is perpendicular to the axial direction of the water outlet pipe 6; the first piston 18 is arranged in the connecting pipe 7, the piston is tightly matched with the fixed bin 8 to form a sealed space. When the water pressure increases, the water pressure acts on the first piston to push it to move in the fixed bin. The movement of the first piston 18 further drives the connecting rod connected thereto to move. The connecting rod 11 is connected to the water outlet pipe 6 through a hinge structure, and this structure design enables the linear movement of the connecting rod 11 to be converted into the rotary swing of the water outlet pipe 6. Therefore, when the connecting rod 11 moves under the push of the first piston 18, the water outlet pipe 6 will swing up and down along the hinge joint between the water outlet pipe 6 and the connecting pipe, so as to realize the flexible adjustment of the lift.

[0022] When the water pressure in the connecting pipe 7 increases due to the operation of the water pump or changes in external conditions, this change will trigger the response mechanism of the regulating unit. The regulating unit is internally provided with a pressure sensing element (conventionally provided) that can monitor the change in water pressure in real time. Once the water pressure exceeds the preset threshold, the regulating unit starts the driving mechanism, which drives the outlet pipe 6 to swing downward by mechanical transmission or hydraulic transmission. This swing design enables the lift of the outlet pipe (i.e., the height or distance that water can be ejected from the outlet pipe) to be dynamically adjusted according to actual needs; moreover, the regulating mechanism can further adjust the lift by swinging the outlet pipe after the cross-sectional area of the outlet pipe has been maximized, effectively avoiding the high energy and low efficiency phenomenon of the water pump under high lift and low flow conditions, thereby achieving efficient and energy-saving operation of the water pump.

[0023] Further, the wall surface of the sprinkling port 16 is coaxially fixed with a receiving bin 15, and the receiving bin 15 is through with the sprinkling port 16. The air bag 22 is installed in the receiving bin 15. The air bag 22 is annular. The middle hole of the air bag 22 is coaxial with the sprinkling port 16. The outer periphery of the air bag 22 is fixedly connected to the inner wall of the receiving bin 15. In this way, the air bag 22 is fixedly connected to the end of the fixed bin 8. The air charging bin 10 is provided with a through hole for the connecting rod 11 to pass through freely. The connecting rod 11 is fixedly sleeved with a second piston 24. The second piston 24 is coaxially and slidingly installed in the air charging bin 10. The air charging bin 10 is connected with the air bag 22 through the air pipe 17. The fixed end cover 20 is sealed with the air charging bin 10 through a sealing ring (not shown in the figure). When the connecting rod 11 moves, the second piston 24 will move in the air charging bin 10. Specifically, when the connecting rod 11 moves away from the fixed bin 8, the second piston 24 will move towards the outlet pipe 6, and the air in the air bag 22 will flow back to the air charging bin 10 through the air pipe 17, so that the volume of the air bag 22 is reduced. In the process of moving the connecting rod 11, it simultaneously drives the second piston 24 to move in the air charging bin. The air charging bin 10 and the air bag 22 are connected through a pipeline to form a closed air path system. When the second piston 24 moves in the air charging bin 10, it will change the air pressure in the air charging bin 10, and then affect the air volume in the air bag 22. Specifically, when the second piston 24 moves towards the air charging bin, the air in the air bag 22 will be sucked back to the air charging bin, causing the volume of the air bag 22 to decrease. The decrease in the volume of the air bag 22 increases the cross-sectional area of the mouth of the sprinkling port, thereby changing the water outflow speed and distribution range. This design not only enhances the adjustment flexibility of the system, but also further optimizes the sprinkling effect.

[0024] The working principle of the embodiment is as follows: When the water pressure in the connecting pipe 7 rises, the first piston 18 will be pushed by the water pressure, and then move towards the direction of the water outlet pipe 6, and make the connecting rod 11 move, which will make the sliding pin 21 slide in the waist-shaped hole 13, and drive the water outlet pipe 6 to rotate around the rotating pivot of the connecting arm on the mounting ring 12, so that the water outlet pipe 6 turns downward, and then the nozzle 16 turns downward, so that the lift of the water pump can be fixed, and the water pressure is prevented from being too large to cause the lift of the water pump 2 to be too large. In addition, when the connecting rod 11 moves, the second piston 24 will move in the air charging chamber 10, and the air in the air bag 22 will flow back to the air charging chamber 10 through the air pipe 17, so that the volume of the air bag 22 shrinks, and the cross-sectional area of the nozzle 16 decreases, so that the adjustment range of the lift of the water pump 2 is larger. Conversely, when the water pressure of the connecting pipe 7 decreases, the water pressure pushing the first piston 18 decreases, and then the elastic potential energy stored in the spring 19 is released, and drives the first piston 18 to move reversely in the fixed chamber 8, and makes the connecting rod 11 move reversely, so that the sliding pin 21 slides in the waist-shaped hole 13, and the nozzle 16 turns upward, and at the same time, the second piston 24 moves reversely in the air charging chamber 10, and the air in the air charging chamber 10 is squeezed into the air bag 22, so that the volume of the air bag 22 expands, and the middle hole of the air bag 22 shrinks, and then the cross-sectional area of the nozzle 16 increases, and then the lift of the water pump 2 increases, and prevents the water pressure of the water pump 2 from decreasing to cause the lift of the water pump 2 to decrease.

[0025] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0026] Therefore, the above description is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application; that is, various equivalent transformations made within the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A high-efficiency and energy-saving gasoline engine water pump, comprising a gasoline engine (1) and a water pump (2), wherein the water pump (2) is provided with an inlet (3), an outlet (5) and a drinking water inlet (4), characterized in that, Also includes: A connecting pipe (7) is connected to the water outlet (5). The water outlet pipe (6) is connected to the connecting pipe (7) through the hose (23). The end of the water outlet pipe (6) away from the connecting pipe (7) is provided with a spray nozzle (16). The water outlet pipe (6) is rotatably connected to the connecting pipe (7). An adjustment unit is provided in the connecting pipe (7) and drives the outlet pipe (6) to swing up and down based on the water pressure inside the connecting pipe (7).

2. The high-efficiency energy-saving gasoline engine water pump according to claim 1, characterized in that, The connecting pipe (7) is fixedly fitted with an installation ring (12) at one end near the outlet pipe (6). The periphery of the installation ring (12) is rotatably connected with a connecting arm. The end of the connecting arm away from the installation ring (12) is fixedly connected to the outlet pipe (6).

3. The high-efficiency energy-saving gasoline engine water pump according to claim 1, characterized in that, The adjustment unit includes a fixed chamber (8) that is connected to the connecting pipe (7) through a fixed pipe (9). A first piston (18) is coaxially and slidably installed in the fixed chamber (8). A connecting rod (11) is coaxially and fixedly inserted through the first piston (18). One end of the connecting rod (11) that passes through the fixed chamber (8) is connected to the water outlet pipe (6) through a hinge structure. When the connecting rod (11) moves horizontally, it will drive the water outlet pipe (6) to swing up and down accordingly. A reset component is provided in the fixed chamber (8). The reset component causes the first piston (18) to move away from the water outlet pipe (6).

4. The high-efficiency energy-saving gasoline engine water pump according to claim 3, characterized in that, The reset assembly includes a fixed end cap (20) installed at the opening of the fixed chamber (8). The fixed end cap (20) has a sliding hole for the connecting rod (11) to pass through freely. An elastic element is provided between the fixed end cap (20) and the first piston (18). The elastic element gives the first piston (18) the potential energy to move away from the fixed end cap (20).

5. A high-efficiency energy-saving gasoline engine water pump according to claim 4, characterized in that, The elastic element is a spring (19) installed in the fixed chamber (8), and the two ends of the spring (19) elastically abut against the first piston (18) and the fixed end cap (20) respectively in the direction of elastic force.

6. A high-efficiency energy-saving gasoline engine water pump according to claim 3, characterized in that, The hinge structure includes a sliding pin (21) fixed to the end of the connecting rod (11) away from the fixed chamber (8), and an extension plate (14) fixed to the wall of the water outlet pipe (6). The extension plate (14) has an oblong hole (13) for the sliding pin (21) to be inserted. The length direction of the oblong hole (13) is perpendicular to the axial direction of the water outlet pipe (6).

7. A high-efficiency energy-saving gasoline engine water pump according to claim 4, characterized in that, The spray nozzle (16) is provided with an opening adjustment unit, which is used to adjust the flow interception area of ​​the spray nozzle (16).

8. A high-efficiency energy-saving gasoline engine water pump according to claim 7, characterized in that, The mouth adjustment unit includes a storage compartment (15) fixed to the spray nozzle (16), the storage compartment (15) is in communication with the spray nozzle (16), an airbag (22) is installed in the storage compartment (15), the outer periphery of the airbag (22) is fixed to the inner wall of the storage compartment (15), the fixed compartment (8) is provided with an inflation component, the inflation component is used to inflate the airbag (22) when the water outlet pipe (6) swings upward.

9. A high-efficiency energy-saving gasoline engine water pump according to claim 8, characterized in that, The inflation assembly includes an inflation chamber (10) installed at the end of the fixed chamber (8). The inflation chamber (10) has a through hole for the connecting rod (11) to pass through freely. A second piston (24) is fixedly sleeved around the periphery of the connecting rod (11). The second piston (24) is coaxially and slidably engaged in the inflation chamber (10). The inflation chamber (10) is connected to the airbag (22) through an air pipe (17).

10. A high-efficiency energy-saving gasoline engine water pump according to claim 9, characterized in that, The fixed end cap (20) and the end face of the air chamber (10) are sealed by a sealing ring.

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