Handheld cleaning machine plunger pump

Abstract

A handheld cleaning machine plunger pump comprises a pump body, a water inlet is formed in the bottom of the pump body, a water outlet is formed in the front of the pump body, a port is formed in the end, opposite to the water outlet, of the pump body, a driving mechanism is arranged in the port, end covers are arranged on the two sides of the pump body, and the driving mechanism is arranged on the end covers. A water inlet hole, a water outlet hole and an installation hole are formed in the side wall of the pump body in a penetrating mode, the water inlet is communicated with the water inlet hole, the water outlet is communicated with the water outlet hole, a plunger shaft is arranged in the installation hole and comprises a first shaft body and a second shaft body, and the first shaft body and the second shaft body are located at the two ends. The diameter of the first shaft body is larger than that of the second shaft body. Compared with a traditional structure, the plunger pump of the handheld cleaning machine is low in cost and easy to assemble, the diameters of the two ends of the plunger shaft are different, and therefore the impact feeling can be improved, the user experience effect can be obviously enhanced, the cleaning efficiency of the handheld cleaning machine is obviously improved, and the plunger pump has good market application prospects.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hand -held cleaning machine plunger pump. BACKGROUND

[0002] The hand -held cleaning machine is a kind of cleaning equipment using water pressure to wash dirt, oil dirt and sediment etc. dirty on object surface, since it can be hand-held, it is convenient to carry, can satisfy the cleaning demand of outdoor activity, and is widely used. The common hand -held cleaning machine due to the relatively uniform water pressure and water flow, leading to weak impact force, and the washing effect is not ideal. The traditional plunger structure, both ends are consistent, in the same waterway, the mass of single water droplet at both ends is m, water droplet speed V, time t etc. Parameters are consistent, on this basis, impulse is the change value of momentum, leading to J=0, showing weak impact force. UTILITARY MODEL CONTENTS

[0003] The utility model provides a kind of hand -held cleaning machine plunger pump.

[0004] The utility model discloses the technical scheme that the above technical problems are solved as follows:

[0005] A kind of hand -held cleaning machine plunger pump, including pump body, the bottom of the pump body is provided with water inlet, the front of the pump body is provided with water outlet, the end opposite to water outlet is provided with port, the port is provided with driving mechanism, the two sides of the pump body are provided with end cap, the lateral wall of the pump body is provided with water inlet hole, water outlet hole and mounting hole, the water inlet is communicated with water inlet hole, the water outlet is communicated with water outlet hole, the mounting hole is provided with plunger shaft, the end cap is provided with water inlet cavity matched with water inlet hole, water outlet cavity matched with water outlet hole and pumping cavity matched with plunger shaft end, the water inlet cavity and water outlet cavity are all communicated with pumping cavity;

[0006] The plunger shaft includes first shaft body and second shaft body, the first shaft body and the second shaft body are located at both ends, and the diameter of the first shaft body is greater than the diameter of the second shaft body.

[0007] Preferably, the plunger shaft further includes a recess between the first shaft body and the second shaft body.

[0008] Preferably, a one-way valve for water flowing from inside to outside is arranged on the water inlet hole.

[0009] Preferably, a one-way valve for water flowing from outside to inside is arranged on the water outlet hole.

[0010] Preferably, the water outlet hole is arranged above the water inlet hole, and the mounting hole is close to the port.

[0011] Preferably, the first shaft body and the second shaft body are tubular bodies with open ends and closed interiors.

[0012] Preferably, the driving mechanism includes an annular body, a driving head sleeved within the annular body, and a cylinder that mates with the recess of the plunger shaft.

[0013] Preferably, the cylinder has a mating hole at its axis, and the drive head includes a drive shaft located on the outer axis and an eccentric shaft located on the inner side. The drive shaft mates with the motor drive head, and the eccentric shaft mates with the mating hole of the cylinder.

[0014] Compared with existing technologies, the plunger pump of this handheld cleaner is lower in cost and simpler to assemble than traditional structures. The inconsistent diameters at both ends of the plunger shaft can increase the impact, significantly enhancing the user experience and improving the cleaning efficiency of the handheld cleaner. It has good market application prospects. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the plunger pump for the handheld cleaning machine of this utility model.

[0016] Figure 2 This is a first exploded view of the plunger pump of the handheld cleaning machine of this utility model.

[0017] Figure 3 This is a second exploded view of the plunger pump of the handheld cleaning machine of this utility model.

[0018] Figure 4 This is a cross-sectional view of the plunger shaft of the plunger pump in the handheld cleaning machine of this utility model.

[0019] Figure 5 This is a structural view of the plunger pump body of the handheld cleaning machine of this utility model.

[0020] Figure 6 This is a cross-sectional view of the plunger pump end cap of the handheld cleaning machine of this utility model. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 6As shown, a handheld cleaning machine plunger pump includes a pump body 1. A water inlet 11 is located at the bottom of the pump body 1, and a water outlet 12 is located at the front of the pump body 1. A port 13 is located at the end opposite to the water outlet 12, and a drive mechanism 3 is installed inside the port 13. End caps 2 are located on both sides of the pump body 1. A water inlet hole 14, a water outlet hole 15, and a mounting hole 16 are provided through the side wall of the pump body 1. The water inlet 11 communicates with the water inlet hole 14, and the water outlet 12 communicates with the water outlet hole 15. A one-way valve for inward-to-outward water flow is provided on the water inlet hole 14, and the water outlet hole 15... A one-way valve for outward-to-inward water flow is provided on the upper part. The water outlet 15 is located above the water inlet 14. The mounting hole 16 is close to the port 13. A plunger shaft 4 is provided in the mounting hole 16. The plunger shaft 4 includes a first shaft body 41, a recess 42 and a second shaft body 43. The first shaft body 41 and the second shaft body 43 are located at both ends. The recess 42 is located between the first shaft body 41 and the second shaft body 43. The diameter of the first shaft body 41 is larger than the diameter of the second shaft body 43. The first shaft body 41 and the second shaft body 43 are tubular bodies with open ends and closed interiors, thus making them lightweight.

[0023] The end cap 2 is provided with an inlet chamber 21 that mates with the inlet hole 14, an outlet chamber 22 that mates with the outlet hole 15, and a pumping chamber 23 that mates with the end of the plunger shaft 4. The inlet chamber 21 and the outlet chamber 22 are both connected to the pumping chamber 23.

[0024] The drive mechanism 3 includes an annular body 31, a drive head 32 sleeved inside the annular body 31, and a cylinder 33 that mates with the recess 42 of the plunger shaft 4. The cylinder 33 has a mating hole 331 at its axis. The drive head 32 includes a drive shaft 321 on the outer axis and an eccentric shaft 322 on the inner side. The drive shaft 321 mates with the motor drive head, and the eccentric shaft 322 mates with the mating hole 331 of the cylinder 33. Thus, the drive head 32 can drive the plunger shaft 4 to reciprocate left and right in the mounting hole 16 during rotation. During the reciprocating left and right movement of the plunger shaft 4 in the mounting hole 16, water can be drawn into the pumping chamber 23, realizing reciprocating pumping of water into the end caps 2 on both sides.

[0025] During the cleaning process, water first enters the inlet hole 14 from the inlet 11 and flows into the inlet chamber 21 through the one-way valve on the inlet hole 14. The water in the inlet chamber 21 is then sucked into the suction chamber 23. The water in the suction chamber 23 enters the outlet chamber 22 and enters the outlet hole 15 through the one-way valve on the outlet hole 15, and is then sprayed out at high speed from the outlet 12.

[0026] Because the diameter of the first shaft 41 at the end of the plunger shaft 4 is larger than that of the second shaft 43, according to the momentum formula: P=mv and the impulse formula J=△p, the two ends are not the same size. The amount of water pumped in the pumping chamber 23 at the end of the first shaft 41 is m1, and the amount of water pumped in the pumping chamber 23 at the end of the second shaft 43 is m2. This results in the pumped mass m1 ≠ m2 at both ends. Combining the theoretical momentum and impulse formulas, in the same water channel, under the condition that other parameters are the same, the momentum at the end of the first shaft 41 is P1, and the momentum at the end of the second shaft 43 is P2. It can be easily concluded that P1 ≠ P2, which leads to the impulse J=△p ≠ 0. That is, the amount of water pumped into the pumping chamber 23 on the side of the first shaft 41 is different from the amount of water pumped into the pumping chamber 23 on the side of the second shaft 43. The impact is obvious when using a handheld cleaner.

[0027] Compared with traditional structures, the plunger pump of this handheld cleaner has lower cost and simpler assembly. The inconsistent diameters at both ends of the plunger shaft 4 can increase the impact, significantly enhancing the user experience and improving the cleaning efficiency of the handheld cleaner. It has good market application prospects.

[0028] Finally, it should be noted that the above embodiments only illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A handheld plunger pump for a cleaning machine, comprising a pump body (1), an inlet (11) at the bottom of the pump body (1), an outlet (12) at the front of the pump body (1), a port (13) at one end opposite to the outlet (12), a drive mechanism (3) inside the port (13), end caps (2) on both sides of the pump body (1), and an inlet hole (14), an outlet hole (15), and a mounting hole (16) through the side wall of the pump body (1). 6) The inlet (11) is connected to the inlet hole (14), the outlet (12) is connected to the outlet hole (15), the mounting hole (16) is provided with a plunger shaft (4), the end cap (2) is provided with an inlet cavity (21) that cooperates with the inlet hole (14), an outlet cavity (22) that cooperates with the outlet hole (15) and a pumping cavity (23) that cooperates with the end of the plunger shaft (4), and the inlet cavity (21) and the outlet cavity (22) are both connected to the pumping cavity (23); Its features are, The plunger shaft (4) includes a first shaft body (41) and a second shaft body (43), which are located at both ends. The diameter of the first shaft body (41) is larger than the diameter of the second shaft body (43).

2. The handheld plunger pump for a cleaning machine according to claim 1, characterized in that, The plunger shaft (4) also includes a recess (42) located between the first shaft body (41) and the second shaft body (43).

3. A handheld plunger pump for a cleaning machine according to claim 1, characterized in that, The inlet hole (14) is equipped with a one-way valve for water to flow from inside to outside.

4. A handheld plunger pump for a cleaning machine according to claim 1, characterized in that, The water outlet (15) is equipped with a one-way valve for water to flow from the outside to the inside.

5. A handheld plunger pump for a cleaning machine according to claim 1, characterized in that, The water outlet (15) is located above the water inlet (14), and the mounting hole (16) is located near the port (13).

6. A handheld plunger pump for a cleaning machine according to claim 1, characterized in that, The first shaft (41) and the second shaft (43) are tubular bodies with open ends and closed interiors.

7. A handheld plunger pump for a cleaning machine according to claim 2, characterized in that, The drive mechanism (3) includes an annular body (31), a drive head (32) sleeved in the annular body (31), and a cylinder (33) that cooperates with the recess (42) of the plunger shaft (4).

8. A handheld plunger pump for a cleaning machine according to claim 7, characterized in that, The cylinder (33) has a mating hole (331) at its axis. The drive head (32) includes a drive shaft (321) on the outer axis and an eccentric shaft (322) on the inner side. The drive shaft (321) is mated with the motor drive head, and the eccentric shaft (322) is mated with the mating hole (331) of the cylinder (33).

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