CN210816436U - Pressure-adjustable high-pressure cleaning machine - Google Patents

Abstract

The utility model discloses a high pressure cleaner with adjustable pressure, which comprises a pump body, be equipped with water inlet, water inlet channel, pressure boost passageway, overflow passageway, exhalant canal and delivery port in the pump body, be equipped with overflow arrangement in the overflow passageway, overflow arrangement includes overflow valve rod, overflow disk seat, overflow valve spring, overflow valve, pressure regulating rod and nut, the centre bore and the spiro union that overflow disk seat was passed to the upper end of overflow valve rod are at the lower extreme of overflow valve, and overflow valve spring housing establishes on the overflow valve rod, and the upper end of overflow valve spring supports the terminal surface at the overflow valve, and the lower extreme supports the terminal surface at the overflow disk seat. The utility model discloses a high pressure cleaner with adjustable pressure, it can be fast, sensitive realization shut down the rifle, start to open the rifle to realize the off-load function automatically.

Description

Pressure-adjustable high-pressure cleaning machine

Technical Field

The utility model relates to a high pressure cleaner with adjustable pressure.

Background

The existing high-pressure cleaning machines on the market all realize the ejection of high-pressure water through a power device driving a plunger pump and are used for cleaning the surface of an object.

Disclosure of Invention

The utility model aims to solve the technical problem that a high pressure cleaner with adjustable pressure is provided, it can be fast, sensitive realization close the rifle shut down, start, and realize the off-load function automatically.

In order to solve the technical problem, the utility model relates to a high pressure cleaner's with adjustable pressure technical solution does:

the utility model discloses a pressure-adjustable high-pressure cleaning machine, which comprises a pump body, be equipped with water inlet, water inlet channel, pressure boost passageway, overflow channel, exhalant canal and delivery port in the pump body, be equipped with overflow arrangement in the overflow channel, overflow arrangement includes overflow valve rod, overflow valve seat, overflow valve spring, overflow valve, pressure regulating rod and nut, the upper end of overflow valve rod passes the centre bore of overflow valve seat and the spiro union is at the lower extreme of overflow valve, and overflow valve spring housing is established on the overflow valve rod, and the upper end of overflow valve spring supports the terminal surface of overflow valve, and the lower extreme supports the terminal surface at the overflow valve seat, receives the elastic force effect of overflow valve spring, and the overflow valve has the trend of upwards moving along the axial, and the sealed core of overflow valve rod lower; the water outlet and the water outlet channel are communicated with a space between an overflow valve and an overflow valve seat of the overflow channel; the outer peripheral surfaces of the overflow valve and the overflow valve seat are respectively provided with a sealing ring, and the sealing rings are hermetically attached to the inner wall of the overflow channel; the water inlet is communicated with the lower ends of the water inlet channel and the overflow channel respectively; the upper end of the overflow channel is provided with an internal threaded hole, a nut is screwed in the internal threaded hole, the center of the nut is provided with a screw hole, the pressure regulating rod is screwed in the screw hole, the lower end of the pressure regulating rod is opposite to the end face of the overflow valve, and the upper end of the pressure regulating rod is connected with a pressure regulating knob; a one-way valve is arranged in the water outlet, and the water outlet is communicated with a space above the overflow valve in the overflow channel through an inclined hole; the pump body is also provided with a start-stop channel, the start-stop channel is provided with a start-stop device, and the start-stop channel is communicated with the space above the overflow valve in the overflow channel and the space below the overflow valve in the overflow channel through the first through hole, the second through hole respectively.

The starting and stopping device comprises a push rod with a piston, a push rod spring, a micro switch and a micro switch fixing frame, wherein an O-shaped ring is arranged on the outer peripheral surface of the piston and is sealed with the inner wall of the starting and stopping channel, the outer end surface of the piston is matched with the position of the first through hole, and the push rod spring is sleeved on the push rod, so that the push rod always has the tendency of moving towards the first through hole along the axial direction; the outer end of the push rod is opposite to a contact of the microswitch, a sealing ring is sleeved on the push rod and is in sealing fit with the inner wall of the starting and stopping channel, and the microswitch is fixed on a microswitch fixing frame; and the second through hole penetrates into a space towards the inner end surface of the piston in the start-stop channel.

The check valve comprises a valve core, a check spring and a nut block, the valve core is matched and sealed in a through hole between the water inlet and the overflow channel, one end of the check spring abuts against the valve core, the other end of the check spring abuts against the nut block, and the nut block is screwed in the water inlet; the inclined hole is matched and communicated with the space between the valve core of the water inlet and the nut block.

The utility model has the advantages that:

compared with the prior art, the utility model discloses a high pressure cleaner with adjustable pressure utilizes hydraulic change to open or close overflow arrangement, start or close respectively and stops to open and stop the device for overflow arrangement, open and stop the device reaction faster, sensitive, thereby make high pressure cleaner realize automatic off-load, pressure boost, automatic start and auto-shutdown.

Drawings

FIG. 1 is a perspective view of the pressure adjustable high pressure cleaner of the present invention;

FIG. 2 is an exploded perspective view of the pressure adjustable high pressure cleaner of the present invention;

FIG. 3 is a perspective sectional view of the pressure adjustable high pressure cleaner of the present invention;

FIG. 4 is a cross-sectional view of the pressure adjustable high pressure washer of the present invention;

fig. 5 is a sectional view showing the direction of the start/stop device of the pressure adjustable high pressure cleaning machine of the present invention.

Detailed Description

The invention will be described in further detail with reference to the following drawings and detailed description:

referring to fig. 1 to 5, the present invention provides a pressure adjustable high pressure cleaning machine, including a pump body 1, a water inlet 2, a water inlet channel 3, a pressurizing channel 4, an overflow channel 5, a water outlet channel 6 and a water outlet 7 are arranged in the pump body 1, an overflow device is arranged in the overflow channel 5, the overflow device includes an overflow valve rod 8, an overflow valve seat 9, an overflow valve spring 10, an overflow valve 11, a pressure regulating rod 12 and a nut 13, the upper end of the overflow valve rod 8 passes through a central hole 14 of the overflow valve seat 9 and is screwed to the lower end of the overflow valve 11, the outer diameter of the overflow valve rod is smaller than the inner diameter of the central hole, the overflow valve spring 10 is sleeved on the overflow valve rod 8, the upper end of the overflow valve spring 10 is abutted against the end face of the overflow valve 11, the lower end is abutted against the end face of the overflow valve seat, the sealing core 15 at the lower end of the overflow valve rod 8 is sealed and abutted in the central hole 14 of the overflow valve seat 9; the water outlet 7 and the water outlet channel 6 are communicated with a space between an overflow valve 11 and an overflow valve seat 9 of the overflow channel 5; the peripheral surfaces of the overflow valve 11 and the overflow valve seat 9 are respectively provided with a sealing ring 16, and the sealing rings 16 are hermetically attached to the inner wall of the overflow channel 5; the water inlet 2 is respectively communicated with the lower ends of the water inlet channel 3 and the overflow channel 5; the upper end of the overflow channel 5 is provided with an internal threaded hole, a screw cap 13 is screwed in the internal threaded hole, the center of the screw cap 13 is provided with a screw hole, the pressure regulating rod 12 is screwed in the screw hole, the lower end of the pressure regulating rod 12 is opposite to the end face of the overflow valve 11, and the upper end of the pressure regulating rod is connected with a pressure regulating knob 17; a one-way valve 18 is arranged in the water outlet 7, and the water outlet 7 is communicated with a space above the overflow valve 11 in the overflow channel 5 through an inclined hole 19; the pump body 1 is further provided with a start-stop channel 20, the start-stop channel 20 is provided with a start-stop device, and the start-stop channel 20 is communicated with a space above the overflow valve 11 in the overflow channel 5 and a space below the overflow valve 11 in the overflow channel 5 through a first through hole 21 and a second through hole 22 respectively.

The start-stop device comprises a push rod 24 with a piston 23, a push rod spring 25, a micro switch 26 and a micro switch fixing frame 27, wherein an O-shaped ring 28 is arranged on the outer peripheral surface of the piston 23, the O-shaped ring 28 is sealed with the inner wall of the start-stop channel 20, the outer end surface of the piston 23 is matched with the position of the first through hole 21, and the push rod spring 25 is sleeved on the push rod 24, so that the push rod 24 always has the tendency of moving towards the first through hole 21 along the axial direction; the outer end of the push rod 24 is opposite to a contact 29 of the microswitch 26, a sealing ring 16 is sleeved on the push rod 24, the sealing ring 16 is attached to the inner wall of the start-stop channel 20 in a sealing mode, and the microswitch 26 is fixed on a microswitch fixing frame 27; the second through hole 22 penetrates into a space facing the inner end surface of the piston 23 in the start-stop channel 20.

The check valve 18 comprises a valve core 30, a check spring 31 and a nut block 32, the valve core 30 is sealed in a through hole 33 between the water inlet 2 and the overflow channel 5 in a matching manner, one end of the check spring 31 abuts against the valve core 30, the other end of the check spring abuts against the nut block 32, and the nut block 32 is screwed in the water inlet 2; the inclined hole 19 is matched and penetrated in the space between the valve core 30 of the water inlet 2 and the nut block 32.

The utility model discloses a high pressure cleaner with adjustable pressure, during the start pressure boost, the route of water is: water inlet 2, inhalant canal 3, pressure boost passageway 4, outlet channel 6, overflow channel 5, delivery port 7, it is specific, municipal water gets into inhalant canal 3 from water inlet 2, reach pressure boost passageway 4, a plurality of plungers have in the pressure boost passageway 4, receive this pressure boost, get into outlet channel 6 with the form of high pressure water, then get into overflow channel 5, the high pressure water that gets into overflow channel 5 is the space between overflow disk seat 9 and the overflow valve 11, this space link up with delivery port 7, so, the case 30 of check valve 18 is washed away to the high pressure water, finally discharge from delivery port 7, high-pressure squirt is connected to delivery port 7, so, when opening high-pressure squirt, just can wash the article.

Under the state that the machine is started to wash, the water outlet channel 6, the overflow channel 5, the water outlet 7 and the start-stop channel 20 are filled with high-pressure water, namely: the high-pressure water passes through the inclined hole 19, the first through hole 21 and the second through hole 22, so that the acting force of the water on the upper end face and the lower end face of the overflow valve 11 is consistent, and the acting force of the water on the outer end face and the inner end face of a piston 23 of the start-stop device is consistent. Under the action of the overflow valve spring 10, the upward acting force on the lower end face of the overflow valve 11 is greater than the downward acting force on the upper end face of the overflow valve 11, so that the overflow valve 11 moves upwards along the axial direction, the sealing core 15 at the lower end of the overflow valve rod 8 is tightly sealed at the lower end of the overflow valve seat 9, and at the moment, the overflow channel 5 is not communicated with the water inlet 2 and the water inlet channel 3; the outward force on the inner end face of the piston 23 is greater than the inward force on the outer end face of the piston 23 by the push rod spring 25, thereby moving the push rod 24 away from the contact 29 of the microswitch 26.

When the high-pressure water gun is closed, at the moment, the water pressure in the water outlet channel 6 and the overflow channel 5 is unchanged, and huge water pressure is generated at the moment of the water outlet 7, at the moment, the valve core 30 of the check valve 18 is restored and sealed in the through hole 33 between the water inlet 2 and the overflow channel 5, at the moment, high-pressure water which generates huge pressure instantly is transmitted to a space above the overflow valve 11 in the overflow channel 5 through the inclined hole 19, at the moment, the pressure exceeds the elastic force of the overflow valve spring 10, so that the overflow valve 11 moves downwards along the axial direction, the overflow valve rod 8 moves downwards, the sealing core 15 leaves the lower end surface of the overflow valve seat 9, the overflow channel 5 is communicated with the water outlet 7 through the central hole 14 of the overflow valve seat 9, and the unloading purpose is; in addition, the high-pressure water reaching the space above the overflow valve 11 in the overflow passage 5 acts on the outer end surface of the piston 23, thereby pushing the piston 23 to move inwards, so that the push rod 24 touches the contact 29 of the microswitch 26, and the gun is shut down.

The utility model discloses can also be through manual regulation pressure regulating knob 17 for pressure regulating rod 12 extrudees overflow valve 11 downwards along the axial, makes overflow valve rod 8 move down then, and sealed core 15 leaves the lower terminal surface of overflow disk seat 9, thereby makes overflow channel 5 link up with delivery port 7 through overflow disk seat 9's centre bore 14, reaches the purpose of off-load.

The pressure-adjustable high-pressure washer provided by the embodiment of the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying a specific example, and the description of the above embodiment is only used to help understand the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (3)

1. The utility model provides a high pressure cleaner with adjustable pressure, includes the pump body, its characterized in that: the pump body is internally provided with a water inlet, a water inlet channel, a pressurizing channel, an overflow channel, a water outlet channel and a water outlet, the overflow channel is internally provided with an overflow device, the overflow device comprises an overflow valve rod, an overflow valve seat, an overflow valve spring, an overflow valve, a pressure regulating rod and a screw cap, the upper end of the overflow valve rod passes through a central hole of the overflow valve seat and is screwed at the lower end of the overflow valve, the overflow valve spring is sleeved on the overflow valve rod, the upper end of the overflow valve spring abuts against the end face of the overflow valve, the lower end of the overflow valve spring abuts against the end face of the overflow valve seat, under the elastic action of the overflow valve spring, the overflow valve has the trend; the water outlet and the water outlet channel are communicated with a space between an overflow valve and an overflow valve seat of the overflow channel; the outer peripheral surfaces of the overflow valve and the overflow valve seat are respectively provided with a sealing ring, and the sealing rings are hermetically attached to the inner wall of the overflow channel; the water inlet is communicated with the lower ends of the water inlet channel and the overflow channel respectively; the upper end of the overflow channel is provided with an internal threaded hole, a nut is screwed in the internal threaded hole, the center of the nut is provided with a screw hole, the pressure regulating rod is screwed in the screw hole, the lower end of the pressure regulating rod is opposite to the end face of the overflow valve, and the upper end of the pressure regulating rod is connected with a pressure regulating knob; a one-way valve is arranged in the water outlet, and the water outlet is communicated with a space above the overflow valve in the overflow channel through an inclined hole; the pump body is also provided with a start-stop channel, the start-stop channel is provided with a start-stop device, and the start-stop channel is communicated with the space above the overflow valve in the overflow channel and the space below the overflow valve in the overflow channel through the first through hole, the second through hole respectively.

2. The pressure adjustable high pressure washer as claimed in claim 1, wherein: the starting and stopping device comprises a push rod with a piston, a push rod spring, a micro switch and a micro switch fixing frame, wherein an O-shaped ring is arranged on the outer peripheral surface of the piston and is sealed with the inner wall of the starting and stopping channel, the outer end surface of the piston is matched with the position of the first through hole, and the push rod spring is sleeved on the push rod, so that the push rod always has the tendency of moving towards the first through hole along the axial direction; the outer end of the push rod is opposite to a contact of the microswitch, a sealing ring is sleeved on the push rod and is in sealing fit with the inner wall of the starting and stopping channel, and the microswitch is fixed on a microswitch fixing frame; and the second through hole penetrates into a space towards the inner end surface of the piston in the start-stop channel.

3. Pressure-regulated high-pressure washer according to claim 1 or 2, characterized in that: the check valve comprises a valve core, a check spring and a nut block, the valve core is matched and sealed in a through hole between the water inlet and the overflow channel, one end of the check spring abuts against the valve core, the other end of the check spring abuts against the nut block, and the nut block is screwed in the water inlet; the inclined hole is matched and communicated with the space between the valve core of the water inlet and the nut block.

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