CN208578708U - A kind of pump valve structure of hand-hold washer - Google Patents

Abstract

The utility model relates to a kind of pump valve structures of hand-hold washer, including plunger cavity and water cavity, and the water inlet of water cavity is connected to a water inlet pipe, and is provided with water feeding one-way valve；The water outlet of water cavity is connected to an outlet pipe, and it is provided with out water one-way valve, it is characterized in that, be provided with switch check valve in the water inlet pipe and at the outer end, and switch check valve and can be automatically turned on the reduction of water inlet intraductal atmospheric pressure or hydraulic pressure, increase and be closed automatically.The utility model automatically controls external water source by the check valve of water inlet pipe nozzle and enters internal water cavity, is evacuated especially by plunger pump to water inlet pipe, and check valve automatically turns on after generating pressure difference；Meanwhile the structure of hand-held part is simplified.

Description

A kind of pump valve structure of hand-hold washer

Technical field

The utility model belongs to pump configuration, and in particular to a kind of pump valve structure for Handheld high-voltage cleaning machine.

Background technique

Handheld high-voltage cleaning machine itself does not have the cisten mechanism at storage water source, is by the water outside water pipe connection Source.It is controlled and is opened and closed by valve between cavity inside water pipe and cleaning machine, the cleaning equipment as disclosed in CN206535797U uses Valve member controls the on-off of external inlet pipeline and water pump, triggers valve member by operation button, operation button touching is similar Trigger or handle.When operation, hand needs to maintain pressing state always, after long working, causes hand fatigue.Meanwhile In order to be equipped with trigger or handle arrangement, the volume of the hand-held part of cleaning machine shell is bigger than normal, and structure is more complicated.

Summary of the invention

The utility model has invented a kind of hand-hold washer mainly for the above problem existing for hand-hold washer Pump valve structure automatically controls external water source by the check valve of water inlet pipe nozzle and enters internal water cavity, especially by plunger pump into Water pipe is evacuated, and check valve automatically turns on after generating pressure difference；Meanwhile the structure of hand-held part is simplified.

The above-mentioned technical problem of the utility model is carried out by the following technical programs: a kind of hand-hold washer Pump valve structure, including plunger cavity and water cavity be provided with plunger in plunger cavity, and plunger is under the action of the driving mechanism relative to column It fills in chamber and carries out reciprocal telescopic movement, the plunger cavity is connected to water cavity；The water cavity is provided with inlet and outlet, wherein The water inlet of water cavity is connected to a water inlet pipe, meanwhile, the water inlet of water cavity and the connection position of water inlet pipe are provided with unidirectional into water Valve, the water feeding one-way valve can be opened with the reduction of hydraulic pressure in water cavity, increase and be closed；The water outlet of water cavity and a water outlet Pipe connection, meanwhile, the water outlet of water cavity and the connection position of outlet pipe are provided with out water one-way valve, and water one-way valve can be with out The reduction of hydraulic pressure in water cavity and be closed, increase and open, which is characterized in that be provided with out in the water inlet pipe and at outer end Check valve is closed, and switch check valve to automatically turn on, increase and automatic with the reduction of water inlet intraductal atmospheric pressure or hydraulic pressure The opening and closing of closure, no setting is required additional trigger or handle control check valve, when operation, reduce hand fatigue, simplify hand-held part Structure.

Preferably, the water inlet pipe is connected to outlet pipe, and is arranged pressure release check valve at the connection position of the two, when When water outlet inner pipe water pressure is excessive, pressure release check valve is automatically turned on, and after being discharged inner pipe water pressure reduces, pressure release check valve closes automatically It closes.This, which is provided with, is conducive to improve safety, and after relief valve is opened, excessive water flows back into water inlet pipe, reduces hydraulic pressure, in order to avoid go out Water pipe is ruptured by excessive hydraulic pressure.

Preferably, including a plunger cavity, a plunger, a water cavity.

Preferably, including two plunger cavities, several intervals plunger arranged side by side, two water cavities；Two plunger cavities Respectively the first plunger cavity, the second plunger cavity, the both ends of each plunger, which respectively correspond, protrudes into two plunger cavities, several plungers The reciprocal telescopic movement synchronized under the action of eccentric drive mechanism relative to two plunger cavities.

Preferably, including two plunger cavities, a plunger, two water cavities；Two plunger cavities be respectively the first plunger cavity, Second plunger cavity, the both ends of the plunger, which respectively correspond, protrudes into two plunger cavities, and the plunger is under the action of eccentric drive mechanism Reciprocal telescopic movement is carried out relative to two plunger cavities；Two water cavities are the first water cavity, the second water cavity respectively, wherein the first water Chamber is connected to the first plunger cavity, and the second water cavity is connected to the second plunger cavity.

Preferably, first water cavity is provided with inlet and outlet, second water cavity be provided with water inlet and Water outlet；Also, it is connected between the water inlet of the first water cavity and the water inlet of the second water cavity by a water inlet adapter cavity, the water inlet Adapter cavity is provided with a water inlet, which is connected to water inlet pipe.

Preferably, the first water inlet of connection position setting of the water inlet of first water cavity and water inlet adapter cavity is unidirectional Valve, the first water feeding one-way valve can be opened with the reduction of hydraulic pressure in the first water cavity, increase and be closed；Second water cavity The second water feeding one-way valve is arranged in the connection position of water inlet and water inlet adapter cavity, and the second water feeding one-way valve can be with the second water cavity The reduction of interior hydraulic pressure and open, increase and be closed.

Preferably, being connected between the water outlet of first water cavity and the water outlet of the second water cavity by a water outlet adapter cavity Logical, which is provided with a water outlet, which is connected to outlet pipe.

Preferably, the first water outlet of connection position setting of the water outlet of first water cavity and water outlet adapter cavity is unidirectional Valve, first, which goes out water one-way valve, can be closed with the reduction of hydraulic pressure in the first water cavity, increase and open；Second water cavity The connection position setting second of water outlet and water outlet adapter cavity goes out water one-way valve, and second goes out water one-way valve can be with the second water cavity The reduction of interior hydraulic pressure and be closed, increase and open.

Preferably, be connected between the water inlet pipe and outlet pipe by a pressure-releasing chamber, also, water inlet pipe and pressure-releasing chamber Connection position is provided with pressure release check valve, and when water outlet inner pipe water pressure is excessive, pressure release check valve is automatically turned on, when water in outlet pipe After pressure drop is low, pressure release check valve is automatically closed.This, which is provided with, is conducive to improve safety, and after relief valve is opened, excessive water is returned Water inlet pipe is flowed to, hydraulic pressure is reduced, in case outlet pipe is ruptured by excessive hydraulic pressure.

In conclusion the utility model has the advantages that compared with prior art

The utility model automatically controls external water source by the check valve of water inlet pipe nozzle and enters internal water cavity, especially by column Plug pump is evacuated water inlet pipe, and check valve automatically turns on after generating pressure difference, additional switch control that no setting is required, simplifies hand-held The structure in portion.

Detailed description of the invention

Fig. 1 is the cross-sectional view of the first state of the utility model disengaging water-pump valve mechanism；

Fig. 2 is the cross-sectional view of second of state of the utility model disengaging water-pump valve mechanism；

Fig. 3 is the cross-sectional view of the inflow and outflow structure of the utility model.

Figure label are as follows: the 10, first plunger cavity；11, the first water cavity；13, water inlet adapter cavity；14, it is discharged adapter cavity；15, Pressure-releasing chamber；16, pressure release check valve；18, the first water feeding one-way valve；19, first goes out water one-way valve；20, the second plunger cavity；22, Two water cavities；28, the second water feeding one-way valve；29, second goes out water one-way valve；8, water inlet pipe；81, check valve is switched；9, outlet pipe.

Specific embodiment

The present invention will be further described with reference to the accompanying drawings and examples.

Embodiment 1:

As shown in Figure 1, 2, 3, the pump valve structure of a kind of hand-hold washer, including plunger cavity and water cavity are set in plunger cavity It is equipped with plunger, plunger carries out reciprocal telescopic movement relative to plunger cavity under the action of motor and eccentric drive shaft；Specifically, There are two structure is identical and symmetrical plunger cavity and two structures are identical and symmetrical water cavity for pump valve structure；It is past in two plunger cavities One plunger of multiple flexible setting；Two plunger cavities are respectively the first plunger cavity 10, the second plunger cavity 20；Two water cavities are respectively One water cavity 11, the second water cavity 22；First water cavity 11 is connected to the first plunger cavity 10, and the second water cavity 22 and the second plunger cavity 20 connect It is logical.

First water cavity 10 has a water inlet and a water outlet, and water inlet is than water outlet closer to the first plunger cavity 11；Second water cavity 20 has a water inlet and a water outlet, and water inlet is than water outlet closer to the second plunger cavity 22；The It is connected between the water inlet of one water cavity 10 and the water inlet of the second water cavity 20 by a water inlet adapter cavity 13, the water inlet adapter cavity 13 There is a water inlet, which is connected to a water inlet pipe 8.

First water feeding one-way valve is arranged in the water inlet of first water cavity 10 and the connection position of water inlet adapter cavity 13 18, the first water feeding one-way valve 18 is formed by connecting by one section of spring and a valve body, and valve body is connected to the end of spring, the first water inlet Check valve 13 can be opened with the reduction of hydraulic pressure in the first water cavity 10, increase and be closed.

Second water feeding one-way valve is arranged in the water inlet of second water cavity 20 and the connection position of water inlet adapter cavity 13 28, the second water feeding one-way valve 28 is formed by connecting by one section of spring and a valve body, and valve body is connected to the end of spring, the second water inlet Check valve 28 can be opened with the reduction of hydraulic pressure in the second water cavity 20, increase and be closed.

It is connected between the water outlet of first water cavity 10 and the water outlet of the second water cavity 20 by a water outlet adapter cavity 14, The water outlet adapter cavity 14 has a water outlet, which is connected to an outlet pipe 9, which is connected to the water outlet of shell 6 The water outlet in portion 63.

The water outlet of first water cavity 10 and the connection position of water outlet adapter cavity 14 are arranged one first and go out water one-way valve 19, first goes out water one-way valve 19 is formed by connecting by one section of spring and a valve body, and valve body is connected to the end of spring, the first water outlet Check valve 19 can be closed with the reduction of hydraulic pressure in the first water cavity 10, increase and open.

The water outlet of second water cavity 10 and the connection position of water outlet adapter cavity 14 are arranged one second and go out water one-way valve 29, second goes out water one-way valve 29 is formed by connecting by one section of spring and a valve body, and valve body is connected to the end of spring, the second water outlet Check valve 29 can be closed with the reduction of hydraulic pressure in the second water cavity 20, increase and open.

There is a switch check valve 81 in water entering section 62 and at outer end, switchs check valve 81 by one section of spring and one A valve body is formed by connecting, and valve body is connected to the end of spring, and switch check valve 81 can be with air pressure in water inlet pipe 8 or hydraulic pressure It reduces and automatically turns on, increases and be closed automatically.

The outlet pipe 9 extends horizontally, and the water inlet pipe 8 straight down or extends obliquely downward, outlet pipe 9 and into It is connected between water pipe 8 by a pressure-releasing chamber 15, also, there is a pressure release check valve at the connection position of water inlet pipe 8 and pressure-releasing chamber 15 16, pressure release check valve 16 is connected and composed by one section of spring and a valve body, and valve body is connected to the end of spring, when in outlet pipe 9 When hydraulic pressure is excessive, pressure release check valve 16 is automatically turned on, and after hydraulic pressure reduces in outlet pipe 9, pressure release check valve 16 is automatically closed.

The method of operation: when 1) working for the first time, pump housing work is evacuated water inlet pipe, makes to switch the generation of check valve both ends Draught head, switch check valve are opened, and then extract water source to the air between the pump housing, i.e. air in water pipe, when air is taken out After complete, the pump housing formally starts to draw water, and water flow ejects in such a way that high pressure water flow obtains from spray boom and nozzle after the pump housing is pressurized It goes, achievees the purpose that cleaning；

2) under the driving effect of motor and transmission shaft, when plunger is moved towards the first plunger cavity, the second water cavity Hydraulic pressure reduces, and the second water feeding one-way valve is opened, and second, which goes out water one-way valve, is closed, and water flow flows into water inlet transition from water inlet pipe Chamber, and the second water cavity is flowed into from the second water feeding one-way valve, part water flow flows into the second plunger cavity again；Meanwhile first water cavity Hydraulic pressure increases, and the first water feeding one-way valve is closed, and first, which goes out water one-way valve, is opened, and is stored in the first plunger cavity and first originally Water in water cavity from first go out water one-way valve from be pressed into water outlet adapter cavity, be stored in water in water outlet adapter cavity originally from water outlet Mouth indentation outlet pipe, sprays using spray boom and nozzle；

3) under the driving effect of motor and transmission shaft, when plunger is moved towards the second plunger cavity, the first water cavity Hydraulic pressure reduces, and the first water feeding one-way valve is opened, and first, which goes out water one-way valve, is closed, and water flow flows into water inlet transition from water inlet pipe Chamber, and the first water cavity is flowed into from the first water feeding one-way valve, part water flow flows into the first plunger cavity again；Meanwhile second water cavity Hydraulic pressure increases, and the second water feeding one-way valve is closed, and second, which goes out water one-way valve, is opened, and is stored in the second plunger cavity and second originally Water in water cavity from second go out water one-way valve from be pressed into water outlet adapter cavity, be stored in water in water outlet adapter cavity originally from water outlet Mouth indentation outlet pipe, sprays using spray boom and nozzle；

4) piston reciprocation movement is primary, and formation draws water twice and sprays water twice, carry out synchronous with water suction of drawing water；

5) after the completion of working, the pump housing stops working, and switch check valve closure, water body is enclosed in water inlet pipe；

6) when the second task, pump housing work directly first extracts the water in water inlet pipe, with the reduction of rate of water added, at both ends Switch check valve is reopened under the action of pressure difference, pumping action of intaking.

Specific embodiment described in text is only to give an example to the spirit of the present invention.Belonging to the utility model Those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitutes, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (10)

1. a kind of pump valve structure of hand-hold washer, including plunger cavity and water cavity, it is provided with plunger in plunger cavity, plunger is driving Reciprocal telescopic movement is carried out relative to plunger cavity under the action of motivation structure, the plunger cavity is connected to water cavity；The water cavity setting There are inlet and outlet, wherein the water inlet of water cavity is connected to a water inlet pipe (8), meanwhile, the water inlet and water inlet pipe of water cavity Connection position be provided with water feeding one-way valve, the water feeding one-way valve can open, increase with the reduction of hydraulic pressure in water cavity and Closure；The water outlet of water cavity is connected to an outlet pipe (9), meanwhile, the water outlet of water cavity and the connection position of outlet pipe are provided with Water one-way valve out, water one-way valve can be closed with the reduction of hydraulic pressure in water cavity, increase and open out, which is characterized in that institute It states in water inlet pipe and is provided with switch check valve (81) at outer end, and switching check valve can be with water inlet intraductal atmospheric pressure Or hydraulic pressure reduction and automatically turn on, increase and be closed automatically.

2. the pump valve structure of hand-hold washer according to claim 1, which is characterized in that the water inlet pipe and outlet pipe Connection, and pressure release check valve (16) are set at the connection position of the two, when water outlet inner pipe water pressure is excessive, pressure release check valve is certainly Dynamic to open, after being discharged inner pipe water pressure reduces, pressure release check valve is automatically closed.

3. the pump valve structure of hand-hold washer according to claim 1 or 2, which is characterized in that including a plunger cavity, One plunger, a water cavity.

4. the pump valve structure of hand-hold washer according to claim 1 or 2, which is characterized in that including two plunger cavities, Several intervals plunger arranged side by side, two water cavities；Two plunger cavities are respectively the first plunger cavity (10), the second plunger cavity (20), the both ends of each plunger, which respectively correspond, protrudes into two plunger cavities, several plungers are under the action of eccentric drive mechanism The reciprocal telescopic movement synchronized relative to two plunger cavities.

5. the pump valve structure of hand-hold washer according to claim 1 or 2, which is characterized in that including two plunger cavities, One plunger, two water cavities；Two plunger cavities are respectively the first plunger cavity (10), the second plunger cavity (20), and the two of the plunger End, which respectively corresponds, protrudes into two plunger cavities, which carries out under the action of eccentric drive mechanism relative to two plunger cavities reciprocal Stretching motion；Two water cavities are the first water cavity (11), the second water cavity (22) respectively, wherein the first water cavity and the first plunger cavity connect Logical, the second water cavity is connected to the second plunger cavity.

6. the pump valve structure of hand-hold washer according to claim 5, which is characterized in that first water cavity (11) sets Inlet and outlet are equipped with, second water cavity is provided with inlet and outlet；Also, the water inlet of the first water cavity and It is connected between the water inlet of two water cavities by water inlet adapter cavity (13), which is provided with a water inlet, should be into The mouth of a river is connected to water inlet pipe (8).

7. the pump valve structure of hand-hold washer according to claim 6, which is characterized in that the water inlet of first water cavity The first water feeding one-way valve (18) are arranged in the connection position of mouth and water inlet adapter cavity, and the first water feeding one-way valve can be with the first water cavity The reduction of interior hydraulic pressure and open, increase and be closed；The water inlet of second water cavity and the connection position of water inlet adapter cavity are arranged Second water feeding one-way valve (28), the second water feeding one-way valve can be opened with the reduction of hydraulic pressure in the second water cavity, increase and close It closes.

8. the pump valve structure of hand-hold washer according to claim 6 or 7, which is characterized in that first water cavity It is connected between water outlet and the water outlet of the second water cavity by a water outlet adapter cavity (14), which is provided with one and goes out The mouth of a river, the water outlet are connected to outlet pipe (9).

9. the pump valve structure of hand-hold washer according to claim 8, which is characterized in that the water outlet of first water cavity The connection position setting first of mouth and water outlet adapter cavity goes out water one-way valve (19), and first goes out water one-way valve can be with the first water cavity The reduction of interior hydraulic pressure and be closed, increase and open；The water outlet of second water cavity and the connection position of water outlet adapter cavity are arranged Second goes out water one-way valve (29), and second, which goes out water one-way valve, can be closed with the reduction of hydraulic pressure in the second water cavity, increase and open It opens.

10. the pump valve structure of the hand-hold washer according to claim 2 or 9, which is characterized in that the water inlet pipe with go out It is connected between water pipe by a pressure-releasing chamber (15), also, the connection position of water inlet pipe and pressure-releasing chamber is provided with pressure release check valve (16), when water outlet inner pipe water pressure is excessive, pressure release check valve is automatically turned on, after being discharged inner pipe water pressure reduces, pressure release check valve It is automatically closed.