CN201650707U

CN201650707U - Self-sucking pump used for high-pressure washing machine

Info

Publication number: CN201650707U
Application number: CN2010201259824U
Authority: CN
Inventors: 曾宏
Original assignee: NINGBO FUSLE MECHANICAL MANUFACTURING Co Ltd
Current assignee: NINGBO FUSLE MECHANICAL MANUFACTURING Co Ltd
Priority date: 2010-03-05
Filing date: 2010-03-05
Publication date: 2010-11-24
Anticipated expiration: 2020-03-05

Abstract

The utility model relates to a self-sucking pump used for a high-pressure washing machine. The self-sucking pump comprises a pump body, a high-pressure one-way valve and a plunger chamber that is arranged at the lower part of the pump body, wherein the right end of the pump body is connected with a water inlet pipe; the plunger chamber is internally provided with a plunger; a passage is arranged between the plunger chamber and a high-pressure one-way valve core; a lower-pressure one-way valve comprises a valve seat, a valve cover, a lower-pressure one-way valve core and a spring; the valve cover is connected at the left end of the valve seat; the lower-pressure one-way valve core is tightly clung to the left end surface of the valve cover; the right end of the lower-pressure one-way valve core is connected with a spring clamping ring; and the spring is arranged in the inner cavity of the valve seat and pushes against between the valve cover and the spring clamping ring. The self-sucking pump used for the high-pressure washing machine can complete the water self-sucking work by the reciprocating motion of the plunger under the condition that the non-pressure water can be used.

Description

The jetting machine self-priming pump

Technical field:

The utility model relates to a kind of annex of jetting machine, specifically is a kind of under the situation that can use no setting-out, can finish the jetting machine self-priming pump of Absorb Water by the to-and-fro motion of plunger.

Background technique:

At present, the jetting machine pump, as shown in Figure 1, general all is to finish water absorption course by the to-and-fro motion of plunger 1 in plunger cavity 2, and when jetting machine has just been started working with pump, plunger cavity 2 inside all can have air to exist, finish water absorption course in order to make plunger 1, just must be earlier will be with outside the air excavationg pump in the plunger cavity 2, but, because the prior art jetting machine is positioned at valve base cavity 3 right sides with low pressure check valve spool 5 in the pump and the sealing surface between the valve gap 4, therefore make plunger cavity 2 not only communicate with passage 6, but also can communicate with valve base cavity 3, thereby when plunger 1 moves right, a part of gas in the plunger cavity 2 can enter in the valve base cavity 3, cause passage 6 interior gases can't produce enough big air pressure thereby the feasible gases that flow in the passage 6 reduce and open high pressure one-way valve spool 7, causing this part gas to remain in can't be discharged from outside the pump in the passage 6, in other words, the user can only come kicker ram 1 to finish water absorption course by injecting the low-pressure water with certain pressure to intake pipe 8.

The model utility content:

The technical problems to be solved in the utility model is, provides a kind of under the situation that can use no setting-out, can finish the jetting machine self-priming pump of Absorb Water by the to-and-fro motion of plunger.

Technical solution of the present utility model is, a kind of jetting machine self-priming pump with following structure is provided: it comprises the pump housing, be positioned at the high pressure one-way valve on pump housing top and the plunger cavity that is positioned at pump housing bottom, pump housing right-hand member is connected with intake pipe, be provided with plunger in the plunger cavity, the plunger cavity right side is provided with low pressure check valve, be provided with passage between plunger cavity and the high pressure one-way valve spool, low pressure check valve comprises valve seat, valve gap, low pressure check valve spool and spring, wherein, valve gap is connected the valve seat left end, low pressure check valve spool and valve gap left side are close to and are closed, low pressure check valve spool right-hand member is connected with a spring pressuring ring, and spring is in the inner chamber of valve seat and withstand between valve gap and the spring pressuring ring.

Jetting machine self-priming pump described in the utility model, wherein, intake pipe inner chamber bottom is connected with second filter screen, and the intake pipe bottom is connected with suction sleeve, and the suction sleeve bottom is connected with first filter screen.

After adopting above structure, compared with prior art, the utility model jetting machine has the following advantages with self-priming pump: because the sealing surface between low pressure check valve spool and the valve gap is positioned at the valve seat left end, therefore, when plunger moves right, the inner chamber of valve seat will be isolated with plunger cavity under the effect of sealing surface, thereby make the gas in the plunger cavity will all flow to passage and can not flow in the valve base cavity, strengthened the pressure that backs down high pressure one-way valve spool in the passage greatly, in other words, because having enough pressure in its passage with self-priming pump when working, the utility model jetting machine backs down high pressure one-way valve spool, therefore, the utility model jetting machine under the situation that can use no setting-out, can be finished the action of Absorb Water with self-priming pump by the to-and-fro motion of plunger.

Description of drawings:

Fig. 1 is the broken section structural representation of prior art jetting machine with pump.

Fig. 2 is the broken section structural representation of the utility model jetting machine with self-priming pump.

Embodiment:

Below in conjunction with the drawings and specific embodiments the utility model jetting machine is described further with self-priming pump:

As shown in Figure 2, in this embodiment, the utility model jetting machine comprises motor 18 with self-priming pump, machine shaft 17, cam 16, bearing 19, plunger 1, connecting base 15, the pump housing 20, high pressure one-way valve 14, low pressure check valve, intake pipe 8, suction sleeve 10, first filter screen 11 and second filter screen 9, machine shaft 17 is positioned at motor 18, connecting base 15 left ends are connected with motor 18, right-hand member is connected with the pump housing 20, cam 16 is connected machine shaft 17 right-hand members, bearing 19 is connected cam 16 right-hand members, high pressure one-way valve 14 is positioned at the pump housing 20 tops, plunger cavity 2 is arranged at the pump housing 20 bottoms, be provided with passage 6 between plunger cavity 2 and the high pressure one-way valve spool 7, plunger 1 is positioned at plunger cavity 2 and left end withstands on bearing 19 end faces, low pressure check valve is positioned at plunger cavity 2 right sides, low pressure check valve specifically comprises valve seat 21, valve gap 4, low pressure check valve spool 5 and spring 13, valve gap 4 is connected valve seat 21 left ends, low pressure check valve spool 5 is close to valve gap 4 left sides and is closed, low pressure check valve spool 5 right-hand members are connected with a spring pressuring ring 12, and spring 13 is in the inner chamber of valve seat 21 and withstand between valve gap 4 and the spring pressuring ring 12.Intake pipe 8 is connected the pump housing 20 right-hand members, second filter screen 9 is positioned at intake pipe 8 inner chamber bottoms, suction sleeve 10 is connected intake pipe 8 bottoms, first filter screen 11 is connected suction sleeve 10 bottoms, the setting of first filter screen 11 and second filter screen 9 is convenient to the utility model jetting machine and is realized carrying out a filter process before using some clean inadequately water such as river etc. with self-priming pump, thus make the utility model jetting machine with self-priming pump can the suction head cleaning water and guarantee the proper functioning of self-priming pump.In this embodiment, high pressure one-way valve 14 is conventional prior art, so do not give unnecessary details at this.

Working principle of the present utility model is: after motor 18 energisings, machine shaft 17 driving cams 16 and bearing 19 circumference that are connected with cam 16 rotate, the circumference of cam 16 and bearing 19 rotates and impels plunger 1 to make oscillating rectilinear motion along self axial direction in plunger cavity 2, when plunger 1 during to left movement, water can be through suction sleeve 10, intake pipe 8 and low pressure check valve enter in the plunger cavity 2, at this moment, high pressure one-way valve spool 7 is in closed condition, and when plunger 1 moves right, low pressure check valve spool 5 is closed, water in the plunger cavity 2 can be pushed high pressure one-way valve spool 7 open and enter in the hyperbaric chamber (not shown) under the effect of plunger 1 right side pressure, and finally discharges through the waste pipe (not shown).

Claims

1. jetting machine self-priming pump, it comprises the pump housing (20), the plunger cavity (2) that is positioned at the high pressure one-way valve (14) on the pump housing (20) top and is positioned at the pump housing (20) bottom, the described pump housing (20) right-hand member is connected with intake pipe (8), be provided with plunger (1) in the described plunger cavity (2), described plunger cavity (2) right side is provided with low pressure check valve, be provided with passage (6) between described plunger cavity (2) and the high pressure one-way valve spool (7), described low pressure check valve comprises valve seat (21), valve gap (4), low pressure check valve spool (5) and spring (13), it is characterized in that: described valve gap (4) is connected valve seat (21) left end, described low pressure check valve spool (5) and valve gap (4) left side are close to and are closed, described low pressure check valve spool (5) right-hand member is connected with a spring pressuring ring (12), described spring (13) be positioned at the inner chamber of valve seat (21) and withstand on valve gap (4) and spring pressuring ring (12) between.

2. jetting machine self-priming pump according to claim 1, it is characterized in that: described intake pipe (8) inner chamber bottom is connected with second filter screen (9), described intake pipe (8) bottom is connected with suction sleeve (10), and described suction sleeve (10) bottom is connected with first filter screen (11).