CN202326171U

CN202326171U - Exhauster for pump head in cleaning machine

Info

Publication number: CN202326171U
Application number: CN2011204798474U
Authority: CN
Inventors: 钟治平
Original assignee: WENLING NINE CONTINENT MOTOR MANUFACTURING Co Ltd
Current assignee: WENLING NINE CONTINENT MOTOR MANUFACTURING Co Ltd
Priority date: 2011-11-28
Filing date: 2011-11-28
Publication date: 2012-07-11
Anticipated expiration: 2021-11-28

Abstract

The utility model provides an exhauster for a pump head in a cleaning machine, belonging to the technical field of machinery. The utility model solves the problem of slow air exhausted from the plunger into the die cavity in the existing high-pressure cleaning machines. The exhauster comprises a pump body with a hollow inner cavity, wherein the pump body is provided with a water inlet pipe and a water outlet pipe; a one-way valve through which the water inlet pipe leads to the inner cavity, an exhaust pipe communicated with the inner cavity of the pump body, and an end cover which is positioned at the end of the exhaust pipe and forms a seal connection with the exhaust pipe, are arranged between the water inlet pipe and the inner cavity; a control mechanism capable of controlling the exhaust pipe to be communicated with the outside is arranged between the end cover and the exhaust pipe; and a one-way control mechanism capable of preventing outside air from entering the inner cavity is arranged in the exhaust pipe. The exhauster is arranged on the pump body and communicated with the inner cavity of the pump body, and a control lever on the exhauster can be controlled so that the exhaust pipe is communicated with the outside; as the plunger in the pump body moves, the positive and negative pressure intensities formed by the volume change in the cavity can quickly exhaust air in the cavity and the water inlet pipe; and thus, the utility model is convenient to operate, and has a simple structure.

Description

The venting gas appliance of pump head in a kind of washing machine

Technical field

The utility model relates to the venting gas appliance of pump head in a kind of washing machine, belongs to mechanical field.

Background technique

In daily live and work, a large amount of cleanings is often arranged, use jetting machine with respect to traditional cleaning way, can practice thrift 80% water, can practice thrift great amount of time simultaneously, and cleaning performance is good.Jetting machine is the device that makes plunger to-and-fro motion in the cylinder body formation high pressure water of high-pressure plunger pump through power plant; When plunger does that inhaling reverses does; Become negative pressure in the pump housing die cavity, form pressure reduction with water intake in the chamber, water gets in the die cavity; When plunger was done the release action, the water pressurized in the die cavity formed high pressure water and discharges; Thereby suck so repeatedly and discharge water constantly from water gunpoint ejection flushing body surface.

When jetting machine time spent not for a long time, have only air to exist in the pump housing die cavity, need air discharge in the pump housing could be extruded water before using.Generally all be to do in cylinder body through the plunger of high-pressure plunger pump to inhale swivel motion formation negative pressure now; Form pressure reduction with water intake in the die cavity; Water gets in the die cavity, and plunger is done when releasing action air is discharged, and moving so repeatedly could go out hydraulic pressure after air has been arranged.But because the Young's modulus of air is big; It is low that plunger is done the negative pressure that produces in the die cavity when inhaling swivel motion, to such an extent as to the speed of exhausting air is slow, and some short stroke washing machines particularly; Because piston stroke is shorter; Piston is done volume-variation that resorption when motion produce makes in the die cavity negative pressure not enough for a short time, causes water intake to open, and makes the jetting machine can't proper functioning.

Summary of the invention

The purpose of this model utility is to have the problems referred to above to existing technology, proposed a kind of simple in structure, easy to operate, make the gas venting gas appliance of pump head in the washing machine of discharge fast the chamber in.

The purpose of the utility model can realize through following technical proposal: the venting gas appliance of pump head in a kind of washing machine; Be provided with on the plunger pump; Described plunger pump comprises the pump housing with hollow cavity; The described pump housing is provided with intake pipe and outlet pipe; Be provided with the one-way valve that can be communicated with or close with inner chamber according to intake pipe and pressure difference control intake pipe between the inner chamber between described intake pipe and the inner chamber, it is characterized in that, said venting gas appliance comprises the outlet pipe that is communicated with pump housing inner chamber, be positioned at the end cap that outlet pipe end and outlet pipe formation are tightly connected; Be provided with between described end cap and the outlet pipe and can control the operating mechanism that outlet pipe is in communication with the outside, be provided with in the described outlet pipe and can prevent that ambient air from getting into the irreversible control of inner chamber.

The control operating mechanism makes outlet pipe be communicated with extraneous; The back and forth movement of plunger makes pump housing inner chamber produce volume-variation, and inner chamber becomes negative pressure when plunger is done the suction swivel motion, simultaneously; One-way valve between intake pipe and the inner chamber is opened automatically, and the air in the intake pipe gets into inner chamber; When plunger was done the release motion, inner chamber formed malleation, simultaneously the closed check valve between intake pipe and the inner chamber; Open and be provided with the irreversible control that can prevent ambient air entering inner chamber in the outlet pipe, the air of inner chamber is discharged inner chamber through irreversible control and outlet pipe, repeats above program; After the outlet pipe place there are flowing out; Show that the air in intake pipe and the inner chamber has been arranged this moment, the control operating mechanism cuts out the pump housing inner chamber and the external world.Through venting gas appliance, can discharge by air easily and fast intake pipe and inner chamber, make the jetting machine proper functioning.

In above-mentioned washing machine in the venting gas appliance of pump head; Described operating mechanism comprises that the gap is located in the operating handle and the spring one that is arranged in the pump housing on the end cap; The pump housing is stretched out in the outer end of described operating handle; The inner is positioned at the pump housing, and is provided with the sealing configuration that can form sealing through spring one effect and end cap between this end and the end cap.Under normal state; Spring one is in compressive state, and the elastic force of spring one acts on and is arranged on the inner sealing configuration, thereby make sealing configuration and end cap form sealing the outlet pipe and the external world is closed; Simultaneously; Adopt such structure, when the pressure in the outlet pipe is big more, the sealing that forms between sealing configuration and the end cap will be tight more; When the needs outlet pipe is communicated with the external world, masterpiece is used on the outer end of operating handle, thereby offsets the elastic force of spring action on sealing configuration, the outer end of controlling operating handle like this is whether the may command outlet pipe and the external world are communicated with.

In above-mentioned washing machine in the venting gas appliance of pump head, described sealing configuration comprises and is arranged on the baffle plate on the operating stem and is set on the operating stem and the seal ring between baffle plate and end cap, and above-mentioned spring one roof pressure is on baffle plate.Seal ring is fixed on the end face of baffle plate, and spring one roof pressure makes to form sealing between seal ring and the end cap on the baffle plate on baffle plate, adopts such mechanism, processing simply, the low and structural stability of cost.

In the venting gas appliance of pump head, baffle plate is stretched out in the inner of described operating handle in above-mentioned washing machine, and described spring one is enclosed within on the inner of operating handle.Spring one is set on the inner, makes the spring axial restraint, has avoided roof pressure after the spring on the baffle plate one squints, to cause the baffle plate end face to receive the power of spring inhomogeneous and influenced the sealing between seal ring and the end cap.

In above-mentioned washing machine in the venting gas appliance of pump head; Described irreversible control comprise tubular and perforation valve seat, be arranged on flat valve and spring two in the valve seat; Described valve seat is axially fixed in the outlet pipe through above-mentioned end cap; Roof pressure is on valve seat and flat valve respectively for described spring two, and described flat valve forms sealing through the interaction energy and the outlet pipe of spring two.Valve seat is installed in the outlet pipe through end cap; Spring two roof pressures are on valve seat and flat valve; Spring is in compressive state, and the elastic force effect of spring makes flat valve and outlet pipe form sealing, has so just prevented that gas or the water in the outlet pipe from getting into inner chamber; And when in inner chamber gets, pressing interior pressures greater than outlet pipe, can make in the gas or water entering outlet pipe in the inner chamber.

In above-mentioned washing machine, in the venting gas appliance of pump head, have step on the described valve seat, have the retaining ring that extend in the outlet pipe on the described end cap, described retaining ring leans on step.The retaining ring that using end covers leans on the step of valve seat, makes valve seat with respect to the outlet pipe axial restraint, adopts such structure to be convenient to the installation of valve seat and fixing, and makes simple in structure, compact.

In above-mentioned washing machine in the venting gas appliance of pump head; Described outlet pipe inboard is provided with shoulder block; Be provided with the pedestal of ring-type between described shoulder block and the flat valve, said flat valve roof pressure forms sealing with the end face of pedestal on the end face of pedestal, and described pedestal and valve seat are connected.Pedestal and valve seat are connected, and flat valve roof pressure under the effect of spring two elastic force and makes the flat valve roof pressure form sealing at the end face of the end face of pedestal and basal plane on pedestal; After adopting such structure; Irreversible control has formed independent parts, the integral body assembling of easy to exhaust device, compact structure.

In above-mentioned washing machine in the venting gas appliance of pump head, have on the described flat valve to the side-prominent projection of spring 21, described spring two is set on the projection.Spring two is set on the projection, reduces the side-play amount that spring two takes place with respect to flat valve, thereby avoids two pairs of flat valve active forces of spring inhomogeneous and the sealing that forms between flat valve and the pedestal is affected.

In above-mentioned washing machine, in the venting gas appliance of pump head, have cambered outwards baffle ring on the middle part of the outer side surface of described pedestal, above-mentioned valve seat roof pressure is on baffle ring.Baffle ring restriction pedestal stretches into the height in the valve seat, thereby defines the elastic module of spring two, so just can control flat valve accurately to the active force for pedestal, has improved the precision of assembling.

In above-mentioned washing machine, in the venting gas appliance of pump head, be provided with sealing gasket between described pedestal and the shoulder block, described sealing gasket is between baffle ring and shoulder block.Sealing gasket is enclosed within on the pedestal, and an end face of sealing gasket leans at the end face of baffle ring near shoulder block, and another end face roof pressure has strengthened the sealing between pedestal and the shoulder block like this on shoulder block.

Compared with prior art, the utlity model has following advantage:

1, venting gas appliance is arranged on the pump housing and with the inner chamber of the pump housing and is communicated with; The operating handle of handling on the venting gas appliance makes outlet pipe be communicated with extraneous; Motion along with pump housing inner plunger; In the chamber that volume-variation in the chamber forms the pressure of positive and negative variation can in the chamber with intake pipe in gas discharge fast, easy to operate, simple in structure.

2, have cambered outwards baffle ring on the middle part of the outer side surface of described pedestal, baffle ring restriction pedestal stretches into the height in the valve seat, thereby defines the elastic module of spring two; So just can control flat valve accurately to active force, improve the precision of assembling, simultaneously for pedestal; Pedestal and valve seat are connected, and the irreversible control that valve seat, flat valve, spring two and pedestal are formed has formed independent parts, the integral body assembling of easy to exhaust device; Simple in structure, improved the stability of complete machine.

3, the retaining ring that covers of using end leans on the step of valve seat, makes valve seat with respect to the outlet pipe axial restraint, adopts such structure to be convenient to the installation of valve seat and fixing, makes compact structure.

Description of drawings

Fig. 1 is the structural scheme of mechanism of pump head in the washing machine.

Fig. 2 is the partial sectional view of figure one.

Among the figure, 1, the pump housing; 2, intake pipe; 3, outlet pipe; 4, one-way valve; 5, inner chamber; 6, outlet pipe; 7, end cap; 8, operating handle; 9, spring one; 10, baffle plate; 11, seal ring; 12, valve seat; 13, spring two; 14, flat valve; 15, step; 16, retaining ring; 17, shoulder block; 18, pedestal; 19, projection; 20, baffle ring; 21, sealing gasket; 22, partial enlarged drawing; 23, spike; 24, spring three; 25, plunger.

Embodiment

Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.

Embodiment one

As depicted in figs. 1 and 2; Plunger pump comprises the pump housing 1 with hollow cavity 5; The pump housing 1 is provided with intake pipe 2 and outlet pipe 3, is provided with and can controls the one-way valve 4 that intake pipe 2 is communicated with or closes with inner chamber 5 with the pressure difference between the inner chamber 5 according to intake pipe 2 between intake pipe 2 and the inner chamber 5.

One-way valve 4 comprises spike 23 and spring 3 24; The ailhead of spike leans at water inlet pipe mouth; The nail post of spike is arranged in the groove of plunger 25, and spring 3 24 is enclosed within on the nail post, and; One end roof pressure of spring 3 24 is on head of a nail interior edge face, and the other end roof pressure makes the head of a nail and water inlet pipe mouth form sealing on the groove of plunger 25.

End cap 7 and outlet pipe 6 are fixed through screw thread, between end cap 7 and outlet pipe 6, are provided with a gasket seal, and the gasket seal roof pressure end cap 7 and outlet pipe 6, and end cap 7 forms with outlet pipe 6 and seals like this.

Venting gas appliance is arranged on the plunger pump; And be connected with the inner chamber 5 of plunger pump, venting gas appliance comprises the outlet pipe 6 that is communicated with the pump housing 1 inner chamber 5, be positioned at outlet pipe 6 ends and outlet pipe 6 forms the end cap 7 that is tightly connected, controls operating mechanism that outlet pipe 6 is in communication with the outside and the irreversible control that prevents ambient air entering inner chamber 5.

Operating mechanism is arranged between end cap 7 and the outlet pipe 6, comprises operating handle 8, baffle plate 10, seal ring 11 and spring 1.Operating handle 8 is positioned at the center of end cap 7; And the pump housing 1 is stretched out in the outer end of operating handle 8, and the inner is positioned at the pump housing 1, on the inner, is provided with baffle plate 10; Seal ring 11 is enclosed within on the operating handle 8 and between baffle plate 10 and end cap 7; End face that seal ring 11 contacts with baffle plate 10 and baffle plate 10 are fixing, and the part of stretching out baffle plate 10 in the inner is arranged with spring 1, and an end roof pressure of spring 1 makes formation sealing between baffle plate 10 and the end cap 7 on the baffle plate 10.

Between the shoulder block 17 that irreversible control is provided with in outlet pipe 6 inboards and the other end of spring 1, and the other end roof pressure of spring 1 is on irreversible control.Irreversible control comprise tubular and perforation valve seat 12, sealing gasket 21, be arranged on flat valve 14, spring 2 13 and pedestal 18 in the valve seat 12; Has step 15 on the valve seat 12; End cap 7 stretches into retaining ring 16 roof pressures in the outlet pipe 6 on step 15, makes valve seat 12 with respect to outlet pipe 6 axial restraints.Medium position in valve seat 12 is provided with flat valve 14, has a projection 19 on the flat valve 14; Between flat valve 14 and shoulder block 17, be provided with the pedestal 18 that is connected through screw thread and valve seat 12; Pedestal 18 in the form of a ring; On the middle part of the outer side surface of pedestal 18, have cambered outwards baffle ring 20, baffle ring 20 restriction pedestals 18 stretch into the height in the valve seat 12, and valve seat 12 roof pressures are on baffle ring 20; Spring 2 13 1 ends lean on valve seat 12, and the other end is enclosed within on the projection 19 and roof pressure flat valve 14 and made flat valve 14 roof pressures on pedestal 18, like this, form sealing between flat valve 14 and the pedestal 18.Sealing gasket 21 is enclosed within on the pedestal 18 and between baffle ring 20 and shoulder block 17, an end face of sealing gasket 21 leans at the end face of baffle ring 20 near shoulder block 17, and another end face roof pressure is on shoulder block 17.

Working principle: start washing machine; Keep a tight grip on the control lever 8 outer end makes outlet pipe be communicated with extraneous; The back and forth movement of plunger 25 makes the pump housing 1 inner chamber 5 produce volume-variation, and inner chamber 5 becomes negative pressure when plunger 25 is done the suction swivel motion, simultaneously; Spike 23 between intake pipe 2 and the inner chamber 5 is opened automatically, and the air in the intake pipe 2 gets into inner chamber 5; When plunger 25 was done the release motion, inner chamber 5 formed malleations, and spike 23 is closed simultaneously; And the flat valve 14 of roof pressure on pedestal 18 opened, and the air of inner chamber 5 is pressed in the interior back of the valve pocket discharge side of flat valve 14 and end cap 7 formation, repeats above program; After outlet pipe 6 places there are flowing out, show that intake pipe 2 has been arranged with the air in the inner chamber 5 this moment; Decontrol operating handle 8, the baffle plate 10 of operating handle 8 forms sealing with end cap 7 under the effect of spring 1.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.

Although this paper has used the pump housing 1, intake pipe 2, outlet pipe 3, one-way valve 4, inner chamber 5 morely; Terms such as outlet pipe 6, end cap 7, operating handle 8, spring 1, baffle plate 10, seal ring 11, valve seat 12, spring 2 13, flat valve 14, step 15, retaining ring 16, shoulder block 17, pedestal 18, projection 19, baffle ring 20, sealing gasket 21, partial enlarged drawing 22 spikes 23, spring 3 24, plunger 25, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.

Claims

1. the venting gas appliance of pump head in the washing machine; Be provided with on the plunger pump; Described plunger pump comprises the have hollow cavity pump housing (1) of (5); The described pump housing (1) is provided with intake pipe (2) and outlet pipe (3); Be provided with the one-way valve (4) that can be communicated with or close with inner chamber (5) according to intake pipe (2) and pressure difference control intake pipe (2) between the inner chamber (5) between described intake pipe (2) and the inner chamber (5), it is characterized in that, said venting gas appliance comprises the outlet pipe (6) that is communicated with the pump housing (1) inner chamber (5), be positioned at the end cap (7) that outlet pipe (6) end and outlet pipe (6) formation are tightly connected; Be provided with between described end cap (7) and the outlet pipe (6) and can control the operating mechanism that outlet pipe (6) is in communication with the outside, be provided with in the described outlet pipe (6) and can prevent that ambient air from getting into the irreversible control of inner chamber (5).

2. the venting gas appliance of pump head in the washing machine according to claim 1; It is characterized in that; Described operating mechanism comprises that the gap is located in the operating handle (8) on the end cap (7) and is arranged on the spring one (9) in the pump housing (1); The pump housing (1) is stretched out in the outer end of described operating handle (8), and the inner is positioned at the pump housing (1), and is provided with the sealing configuration that can form sealing through spring one (9) effect and end cap (7) between this end and the end cap (7).

3. the venting gas appliance of pump head in the washing machine according to claim 2; It is characterized in that; Described sealing configuration comprise the baffle plate (10) that is arranged on the operating stem and be set on the operating stem and be positioned at baffle plate (10) and end cap (7) between seal ring (11), above-mentioned spring one (9) roof pressure is on baffle plate (10).

4. the venting gas appliance of pump head is characterized in that in the washing machine according to claim 3, and baffle plate (10) is stretched out in the inner of described operating handle (8), and described spring one (9) is enclosed within on the inner of operating handle (8).

5. the venting gas appliance of pump head in the washing machine according to claim 1; It is characterized in that; Described irreversible control comprise tubular and perforation valve seat (12), be arranged on flat valve (14) and spring two (13) in the valve seat (12); Described valve seat (12) is axially fixed in the outlet pipe (6) through above-mentioned end cap (7), and roof pressure is on valve seat (12) and flat valve (14) respectively for described spring two (13), and described flat valve (14) forms sealing through the interaction energy and the outlet pipe (6) of spring two (13).

6. the venting gas appliance of pump head in the washing machine according to claim 5; It is characterized in that; Have step (15) on the described valve seat (12), have the retaining ring (16) that extend in the outlet pipe (6) on the described end cap (7), described retaining ring (16) leans on step (15).

7. the venting gas appliance of pump head in the washing machine according to claim 5; It is characterized in that; Described outlet pipe (6) inboard is provided with shoulder block (17); Be provided with the pedestal (18) of ring-type between described shoulder block (17) and the flat valve (14), said flat valve (14) roof pressure forms sealing with the end face of pedestal (18) on the end face of pedestal (18), and described pedestal (18) and valve seat (12) are connected.

8. the venting gas appliance of pump head is characterized in that in the washing machine according to claim 7, has on the described flat valve (14) to the side-prominent projection (19) of spring two (13), and described spring two (13) is set on the projection (19).

9. follow the venting gas appliance according to pump head in the described washing machine of claim 7, it is characterized in that, have cambered outwards baffle ring (20) on the middle part of the outer side surface of described pedestal (18), above-mentioned valve seat (12) roof pressure is on baffle ring (20).

10. the venting gas appliance of pump head is characterized in that in the washing machine according to claim 9, is provided with sealing gasket (21) between described pedestal (18) and the shoulder block (17), and described sealing gasket (21) is positioned between baffle ring (20) and the shoulder block (17).