Piston type water pump

Abstract

The invention relates to the technical field of pressure testing equipment, in particular to a piston type water pump which comprises a water storage tank and a water storage tank installed on the water storage tank and in a hollow uncovered cylindrical shape, the bottom of the water storage tank is connected with a water pumping pipe, and a water outlet pipe is installed on the outer wall of the water storage tank. A side plate parallel to the ground is installed on the outer wall of the side, close to the water storage tank, of the water storage tank, a supporting rod is installed on the top face of the side, close to the water storage tank, of the water storage tank, and a lifting air cylinder is installed on the side plate. Through the side plate arranged on one side of the water storage tank and the lifting air cylinder installed on the side plate, one end of the pressing rod can be lifted, a piston water pumping experiment can be automatically completed, manpower is saved, through the arranged limiting frame and limiting ring, the position of the pull rod can be fixed, the pull rod is prevented from shifting, and the stability of the structure is improved; students can clearly observe the whole working process of the piston type water pump, the learning enthusiasm of the students is fully aroused, and the teaching effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure testing equipment, in particular to a piston type water pump. Background Art

[0002] A piston pump, also known as a "suction pump", uses the movement of a piston to expel air. The piston has a valve, and there is another valve at the bottom, which creates a pressure difference between the inside and outside of the cylinder, causing the water to rise and be pumped out under the action of the air pressure. When the piston is pressed down, the water inlet valve is closed and the exhaust valve is opened; when the piston is lifted, the exhaust valve is closed and the water inlet valve is opened. Under the action of external atmospheric pressure, water is pressed out from the water inlet pipe through the water inlet valve and from the water outlet above. In this way, the piston reciprocates up and down in the cylinder, continuously pumping out water.

[0003] Chinese patent application number CN201320662007.0 discloses a piston pump demonstration device, including a cylinder whose bottom is fixed on a bottom plate and made of transparent plastic, a water inlet pipe passing through the bottom plate is arranged at the bottom of the cylinder, and a one-way water inlet valve is arranged in the water inlet pipe; a piston with a piston ring is arranged inside the cylinder, a one-way water outlet valve is arranged on the piston, a water outlet nozzle is arranged on the barrel wall at the upper part of the cylinder, a cylinder cover is arranged at the top of the cylinder, a suspension rod passes through the cylinder cover and is connected to the piston, the suspension rod is sealed and connected to the cylinder cover, the suspension rod is rotatably connected to the top of the pressure rod, the middle part of the pressure rod is rotatably connected to a column arranged on one side of the cylinder and vertically fixed on the bottom plate, and a handle is arranged at the tail end of the pressure rod. The present invention enables students to clearly observe the entire working process of the piston pump, fully mobilize students' learning enthusiasm, and improve teaching effects. However, the piston pump needs to be operated manually, and in the teaching process, the teacher's work is heavy, and the manual piston pump wastes manpower, and it is necessary to continuously demonstrate so that students can understand and learn, which increases the workload. Summary of the invention

[0004] The object of the present invention is to provide a piston water pump to solve the problem mentioned in the above background technology that the current piston water pump needs to be operated manually, and during the teaching process, the teachers have heavy work, the manual piston water pump wastes manpower, and requires continuous demonstration for students to understand and learn, which increases the workload.

[0005] To achieve the above object, the present invention provides the following technical solutions: A piston-type water pump comprises a water tank and a water tank installed on the water tank and in a hollow, uncovered cylindrical shape. The bottom of the water tank is connected to a water pumping pipe with a one-way valve, an outlet pipe is installed on the outer wall of the water tank, a limit ring is installed on the inner wall of the water tank near the outlet, a top plate for installing the water tank is provided on the water tank, a side plate parallel to the ground is installed on the outer wall of the water tank near the water tank, a support rod is installed on the top surface of the side of the water tank near the water tank, a lifting cylinder is installed on the side plate, and a lifting cylinder is installed on the inner wall of the water tank. A piston is installed, a pull rod is installed at the center of the piston, a pressure rod is installed on the top of the support rod, one end of the pressure rod is rotatably connected to the top of the pull rod through a first rotating shaft, the middle part of the pressure rod is connected to the rotating head of the support rod through a second rotating shaft, one end of the pressure rod away from the pull rod is movably connected to the piston rod of the lifting cylinder, a plurality of limit frames arranged evenly and equidistantly in a ring are installed on the top of the inner wall of the water tank, a limit ring coaxially arranged with the pull rod is installed in the middle of the limit frame, and the limit ring is sleeved on the outer wall of the pull rod.

[0006] Preferably, the top plate is 2-3 cm away from the notch of the water storage tank, and a plurality of mesh holes evenly and equidistantly arranged are provided on the top plate.

[0007] Preferably, a filter screen is installed at the bottom of the water suction pipe.

[0008] Preferably, the water outlet pipe is inclined, and the inclination angle is 15-20°.

[0009] Preferably, a fixing seat for fixing the water tank is installed on the top plate, and the bottom of the water tank is connected to the fixing seat via a fixing pin.

[0010] Preferably, the water outlet pipe is in a horizontal J-shape with the water outlet end facing downward, and a water collecting funnel is installed at the water outlet end of the water outlet pipe.

[0011] Preferably, the bottom of the water collecting funnel is 3-5 cm away from the bottom of the water storage tank.

[0012] Preferably, one side of the top of the water collecting funnel is connected to the outer wall of the water storage tank via a fixing frame.

[0013] Preferably, the inner diameter of the limit ring is adapted to the outer diameter of the pull rod and is in sliding fit.

[0014] Preferably, a connecting rod is installed on the top of the piston rod, a movable ball is installed on the top of the connecting rod, a ball movable groove is opened on the outer wall of one end of the pressure rod close to the piston rod, and the ball is movably connected to the ball movable groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In this piston water pump, through the side plate set on one side of the water tank and the lifting cylinder installed on the side plate, one end of the pressure rod can be raised and lowered, and the piston pumping experiment can be automatically completed, saving manpower. The position of the pull rod can be fixed by the set limit frame and limit ring to prevent the pull rod from shifting, thereby improving the stability of the structure, enabling students to clearly observe the entire working process of the piston water pump, fully mobilizing students' enthusiasm for learning and improving teaching effects.

[0016] 2. In this piston-type water pump, the water collecting funnel can prevent splashing when the water is discharged, and the discharged water can be collected and collected back into the water storage tank. The water collecting funnel is convenient for learners to observe the drainage status. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the connection structure between the water storage tank and the water storage tank of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the compression rod of the present invention.

[0018] The definitions of the symbols in the figure are: 10. water storage tank; 11. top plate; 12. side plate; 13. support rod; 14. fixing seat; 15. fixing pin; 16. rotating head; 20. Water storage tank; 21. Water extraction pipe; 22. Filter screen; 23. Piston; 24. Pull rod; 25. Limiting ring; 26. Water outlet pipe; 27. Water collecting funnel; 28. Fixing frame; 29. ​​Limiting frame; 210. Limiting ring; 30. Lifting cylinder; 31. Piston rod; 32. Connecting rod; 33. Movable ball; 40. Pressure rod; 41. First rotating shaft; 42. Second rotating shaft; 43. Ball bearing movable groove. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] Example 1 A piston pump, such as Figure 1 and Figure 2 As shown, it includes a water tank 10 and a water tank 20 installed on the water tank 10 and in a hollow, uncovered cylindrical shape. The bottom of the water tank 20 is connected to a water pumping pipe 21 with a one-way valve, an outlet pipe 26 is installed on the outer wall of the water tank 20, and a limit ring 25 is installed on the inner wall of the water tank 20 near the outlet. A top plate 11 for installing the water tank 20 is provided on the water tank 10, and a side plate 12 parallel to the ground is installed on the outer wall of the water tank 10 near the water tank 20. A support rod 13 is installed on the top surface of one side of the water tank 10 near the water tank 20, and a lifting cylinder 30 is installed on the side plate 12. There is a piston 23, a pull rod 24 is installed at the center of the piston 23, a pressure rod 40 is installed on the top of the support rod 13, one end of the pressure rod 40 is rotatably connected to the top of the pull rod 24 through a first rotating shaft 41, the middle part of the pressure rod 40 is connected to the rotating head 16 of the support rod 13 through a second rotating shaft 41, and one end of the pressure rod 40 away from the pull rod 24 is movably connected to the piston rod 31 of the lifting cylinder 30, and a plurality of uniformly and equidistantly arranged limit frames 29 are installed on the top of the inner wall of the water tank 20, and a limit ring 210 coaxially arranged with the pull rod 24 is installed in the middle of the limit frame 29, and the limit ring 210 is sleeved on the outer wall of the pull rod 24.

[0022] Furthermore, the top plate 11 is 2-3 cm away from the notch of the water tank 10 , and a number of evenly and equidistantly arranged mesh holes are provided on the top plate 11 , through which the splashed or spilled water can flow back into the water tank 10 .

[0023] It is worth noting that a filter screen 22 is installed at the bottom of the water pumping pipe 21 to improve the filtering effect and prevent clogging. The water outlet pipe 26 is tilted at an angle of 15-20°, so that the water in the water outlet pipe 26 can be drained.

[0024] Specifically, a fixing seat 14 for fixing the water tank 20 is installed on the top plate 11, and the bottom of the water tank 20 is connected to the fixing seat 14 through a fixing pin 15. By setting the fixing seat 14 and the fixing pin 15 in coordination, the water tank 20 can be disassembled and fixed, thereby improving the stability of the structure.

[0025] Example 2 A piston-type water pump comprises a water tank 10 and a water tank 20 which is installed on the water tank 10 and is in a hollow cylindrical shape without a cover. A water pumping pipe 21 with a one-way valve is connected to the bottom of the water tank 20. A water outlet pipe 26 is installed on the outer wall of the water tank 20. A limit ring 25 is installed on the inner wall of the water tank 20 near the outlet. A top plate 11 for installing the water tank 20 is provided on the water tank 10. A side plate 12 parallel to the ground is installed on the outer wall of the water tank 10 near the water tank 20. A support rod 13 is installed on the top surface of the side of the water tank 10 near the water tank 20. A lifting cylinder 30 is installed on the side plate 12. The water tank 20 A piston 23 is installed inside, a pull rod 24 is installed at the center of the piston 23, a pressure rod 40 is installed on the top of the support rod 13, one end of the pressure rod 40 is rotatably connected to the top of the pull rod 24 through a first rotating shaft 41, the middle part of the pressure rod 40 is connected to the rotating head 16 of the support rod 13 through a second rotating shaft 41, and one end of the pressure rod 40 away from the pull rod 24 is movably connected to the piston rod 31 of the lifting cylinder 30, and a plurality of limit frames 29 arranged evenly and equidistantly in a ring are installed on the top of the inner wall of the water tank 20, and a limit ring 210 coaxially arranged with the pull rod 24 is installed in the middle of the limit frame 29, and the limit ring 210 is sleeved on the outer wall of the pull rod 24.

[0026] In this embodiment, the water outlet pipe 26 is in a horizontal J-shape with the water outlet end facing downward. A water collecting funnel 27 is installed at the water outlet end of the water outlet pipe 26. The bottom of the water collecting funnel 27 is 3-5 cm away from the bottom of the water storage tank 10. The top side of the water collecting funnel 27 is connected to the outer wall of the water storage tank 20 through a fixing frame 28. The discharged water can be collected by the set water collecting funnel 27 and collected back into the water storage tank 10. The water collecting funnel 27 is convenient for learners to observe the drainage status.

[0027] In this embodiment, the inner diameter of the limiting ring 210 is adapted to the outer diameter of the pull rod 24 and is in sliding fit.

[0028] Example 3 A piston-type water pump comprises a water tank 10 and a water tank 20 which is installed on the water tank 10 and is in a hollow cylindrical shape without a cover. A water pumping pipe 21 with a one-way valve is connected to the bottom of the water tank 20. A water outlet pipe 26 is installed on the outer wall of the water tank 20. A limit ring 25 is installed on the inner wall of the water tank 20 near the outlet. A top plate 11 for installing the water tank 20 is provided on the water tank 10. A side plate 12 parallel to the ground is installed on the outer wall of the water tank 10 near the water tank 20. A support rod 13 is installed on the top surface of the side of the water tank 10 near the water tank 20. A lifting cylinder 30 is installed on the side plate 12. The water tank 20 A piston 23 is installed inside, a pull rod 24 is installed at the center of the piston 23, a pressure rod 40 is installed on the top of the support rod 13, one end of the pressure rod 40 is rotatably connected to the top of the pull rod 24 through a first rotating shaft 41, the middle part of the pressure rod 40 is connected to the rotating head 16 of the support rod 13 through a second rotating shaft 41, and one end of the pressure rod 40 away from the pull rod 24 is movably connected to the piston rod 31 of the lifting cylinder 30, and a plurality of limit frames 29 arranged evenly and equidistantly in a ring are installed on the top of the inner wall of the water tank 20, and a limit ring 210 coaxially arranged with the pull rod 24 is installed in the middle of the limit frame 29, and the limit ring 210 is sleeved on the outer wall of the pull rod 24.

[0029] In this embodiment, Figure 3 As shown, a connecting rod 32 is installed on the top of the piston rod 31, and a movable ball 33 is installed on the top of the connecting rod 32. A ball movable groove 43 is opened on the outer wall of the end of the pressure rod 40 close to the piston rod 31, and the ball 33 and the ball movable groove 43 are movably connected. Through the cooperation of the set movable ball 33 and the ball movable groove 43, the piston rod 31 and the pressure rod 40 can be movably connected, thereby improving the stability of the structure.

[0030] The piston water pump of the present invention can lift and lower one end of the pressure rod 40 through the side plate 12 set on one side of the water tank 10 and the lifting cylinder 30 installed on the side plate 12, and can automatically complete the piston pumping experiment, saving manpower. The position of the pull rod 24 can be fixed by the set limit frame 29 and the limit ring 210 to prevent the pull rod 24 from shifting, thereby improving the stability of the structure, allowing students to clearly observe the entire working process of the piston water pump, fully mobilizing students' enthusiasm for learning, and improving teaching effects.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A piston pump, characterized in that: The invention comprises a water storage tank (10) and a water storage tank (20) which is mounted on the water storage tank (10) and is in the shape of a hollow, uncovered cylinder. The bottom of the water storage tank (20) is connected to a water pumping pipe (21) with a one-way valve. The outer wall of the water storage tank (20) is mounted with a water outlet pipe (26). The water storage tank (10) is provided with a top plate (11) for mounting the water storage tank (20). A side plate (12) parallel to the ground is mounted on the outer wall of the water storage tank (10) on one side close to the water storage tank (20). A support rod (13) is mounted on the top surface of the side of the water storage tank (10) close to the water storage tank (20). A lifting cylinder (30) is mounted on the side plate (12). A piston (23) is mounted in the water storage tank (20). The center of the piston (23) is provided with a piston (23). A pull rod (24) is provided, a pressure rod (40) is installed on the top of the support rod (13), one end of the pressure rod (40) is rotatably connected to the top of the pull rod (24) via a first rotating shaft (41), the middle of the pressure rod (40) is connected to the rotating head (16) of the support rod (13) via a second rotating shaft (41), one end of the pressure rod (40) away from the pull rod (24) is movably connected to the piston rod (31) of the lifting cylinder (30), a plurality of evenly spaced and annularly arranged limiting frames (29) are installed on the top of the inner wall of the water storage tank (20), a limiting ring (210) coaxially arranged with the pull rod (24) is installed in the middle of the limiting frame (29), and the limiting ring (210) is sleeved on the outer wall of the pull rod (24).

2. The piston pump according to claim 1, characterized in that: The top plate (11) is 2-3 cm away from the notch of the water storage tank (10), and a plurality of mesh holes evenly and equidistantly arranged are provided on the top plate (11).

3. The piston pump according to claim 1, characterized in that: A filter screen cover (22) is installed at the bottom of the water suction pipe (21).

4. The piston pump according to claim 1, characterized in that: The water outlet pipe (26) is arranged to be inclined, and the inclination angle is 15-20°.

5. The piston pump according to claim 1, characterized in that: A fixing seat (14) for fixing the water storage tank (20) is installed on the top plate (11), and the bottom of the water storage tank (20) is connected to the fixing seat (14) via a fixing pin (15).

6. The piston pump according to claim 1, characterized in that: The water outlet pipe (26) is in a horizontal J-shape, with the water outlet end facing downwards, and a water collecting funnel (27) is installed at the water outlet end of the water outlet pipe (26).

7. The piston pump according to claim 6, characterized in that: The bottom of the water collecting funnel (27) is 3-5 cm away from the bottom of the water storage tank (10).

8. The piston pump according to claim 6, characterized in that: One side of the top of the water collecting funnel (27) is connected to the outer wall of the water storage tank (20) via a fixing frame (28).

9. The piston pump according to claim 1, characterized in that: The inner diameter of the limiting ring (210) is adapted to the outer diameter of the pull rod (24) and is in a measuring and sliding fit.

10. The piston pump according to claim 9, characterized in that: A connecting rod (32) is mounted on the top of the piston rod (31), a movable ball (33) is mounted on the top of the connecting rod (32), and a movable ball groove (43) is formed on the outer wall of one end of the pressure rod (40) close to the piston rod (31), and the ball (33) is movably connected to the movable ball groove (43).

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