CN210925785U - Hydraulic switch for hydraulic pressure pushing spring to stretch and release pressure - Google Patents

Abstract

The utility model relates to a hydraulic switch of flexible release of liquid pressure propelling spring belongs to the switch technology field, including the base, install push rod and micro-gap switch in the base, the push rod slides and sets up above micro-gap switch, the base right side fixed mounting has the piston cover, install the piston rod rather than sliding connection in the piston cover, the piston rod sets up on push rod upper end right side and rather than fixed connection, the piston rod outside cover is equipped with the piston head, the piston head right-hand member outside cover is equipped with reset spring, the piston rod right-hand member is installed the screw, the screw outside cover is equipped with the overflow valve, the overflow valve sets up at the reset spring right-hand member; the utility model discloses a set up micro-gap switch cooperation push rod, piston rod and reset spring, realized closing the rifle and stopped, the function of the start of opening the rifle, water and electricity consumption is low, has improved cleaning machine life.

Description

Hydraulic switch for hydraulic pressure pushing spring to stretch and release pressure

Technical Field

The utility model relates to the technical field of switches, specifically a hydraulic switch of flexible release of hydraulic pressure propelling spring.

Background

The high pressure cleaning machine is a cleaning equipment which uses a power device to make a pump generate high pressure water to wash and clean the surface of an object. High pressure washers are classified into three types, commercial, industrial, and household, depending on the application.

The household high-pressure cleaning machine is a novel household appliance which is rapidly developed in recent years, and is generally used for high-pressure jet washing of household courtyards, automobiles, floors, wall surfaces, objects and the like, the pressure of the household high-pressure cleaning machine is generally between several mega pascals and more than ten mega pascals, and the medium of the household high-pressure cleaning machine is normal-temperature clear water. The pressure regulating valve is commonly arranged on commercial and industrial cleaning machines, pressure can be regulated in advance within a rated pressure range according to specific use conditions, a spray head is matched and replaced, and the function of gun closing and unloading can be achieved. The household cleaning machine needs to frequently pause (gun closing pause) and continue (gun opening continue) during the use process due to different use process characteristics. The existing household high-pressure cleaning machine does not have the functions of shutting down the gun (stopping the operation of the motor) and starting up the gun (starting the motor), so that the service life of the cleaning machine is short, and the water and electricity consumption is high.

Disclosure of Invention

An object of the utility model is to provide a hydraulic switch of flexible release of hydraulic pressure propelling spring to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a hydraulic switch of flexible release of liquid pressure propelling spring, includes the base, install push rod and micro-gap switch in the base, the push rod slides and sets up in the micro-gap switch top, base right side fixed mounting has the piston cover, install in the piston cover rather than sliding connection's piston rod, the piston rod sets up on push rod upper end right side and rather than fixed connection, the outside cover of piston rod is equipped with the piston head, the outside cover of piston head right-hand member is equipped with reset spring, the screw is installed to the piston rod right-hand member, the outside cover of screw is equipped with the overflow valve, the overflow valve sets up at the reset spring right-hand member, micro-gap.

As a further technical solution of the present invention: the piston rod is also externally sleeved with a first check ring, the first check ring is arranged on the left side of the piston head and connected with the piston head through a second sealing ring, the piston head is also externally sleeved with a third sealing ring, and the third sealing ring is connected with the piston head through the second check ring.

As a further technical solution of the present invention: the outside cover of piston sleeve is equipped with first sealing washer and fourth sealing washer.

As the utility model discloses a further technical scheme again: and a sealing ring groove matched with the first sealing ring and the fourth sealing ring is formed in the outer part of the piston head.

As the utility model discloses a further technical scheme again: and a fifth sealing ring is further sleeved outside the screw and arranged on the right side of the overflow valve.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up micro-gap switch cooperation push rod, piston rod and reset spring, can be through changing reset spring in order to obtain with the pressure of cleaning machine adaptation, integrated needs the cleaning machine temporary stop during operation, press cleaning machine spray gun trigger button, the motor also temporarily stops simultaneously, during operation once more, the motor restarts simultaneously, and water and electricity consumption is low, has improved cleaning machine life.

Drawings

FIG. 1 is a cross-sectional view of a hydraulic switch with a spring that is pushed by fluid pressure to expand and contract to relieve pressure;

fig. 2 is a partial cross-sectional view of a hydraulic switch with a spring that is pushed by fluid pressure to expand and contract to relieve pressure.

In the figure: the device comprises a push rod 1, a base 2, a piston rod 3, a first check ring 4, a first sealing ring 5, a second sealing ring 6, a third sealing ring 7, a fourth sealing ring 8, a second check ring 9, a return spring 10, a screw 11, an overflow valve 12, a fifth sealing ring 13, a microswitch 14, a lead 15 and a plug 16.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

The hydraulic switch with the spring stretching and releasing pressure pushed by the liquid pressure as shown in fig. 1 and 2 comprises a base 2, wherein a push rod 1 and a micro switch 14 are installed in the base 2, the push rod 1 is arranged above the micro switch 14 in a sliding mode, specifically, the push rod 1 is connected in a left-right sliding mode, when cleaning is normally carried out, the micro switch 14 is switched on, and when the push rod 1 slides to the right, the push rod contacts the micro switch 14 to be switched off, so that a power supply is cut off, and a motor is switched off and stopped; a piston sleeve is fixedly arranged on the right side of the base 2, a piston rod 3 which is connected with the piston sleeve in a sliding manner is arranged in the piston sleeve, the piston rod 3 is arranged on the right side of the upper end of the push rod 1 and is fixedly connected with the push rod, namely, the gun is turned off and stopped and the gun is turned on and started by driving the push rod 1 to slide left and right through the piston rod 3, specifically, a piston head is sleeved outside the piston rod 3, a reset spring 10 is sleeved outside the right end of the piston head, a screw 11 is arranged at the right end of the piston rod 3, an overflow valve 12 is sleeved outside the screw 11 and is arranged at the right end of the reset spring 10, when the spray gun is turned off, the water pressure in a high-pressure pipe is increased sharply, the piston head is pushed by high-pressure water to compress the reset; when the spray gun is turned on again, the pressure of the water outlet is released, the reset spring 10 resets, the micro switch 14 is turned on again, the motor is restarted, and the cleaning machine continues to work; the microswitch 14 is connected to a plug 16 by a wire 15.

Further, the piston rod 3 is externally sleeved with a first check ring 4, the first check ring 4 is arranged on the left side of the piston head, the first check ring 4 is connected with the piston head through a second sealing ring 6, a third sealing ring 7 is further sleeved on the outer portion of the left side of the piston head, the third sealing ring 7 is connected with the piston head through a second check ring 9, namely the inner portion of the piston head is kept sealed through the matching of the two check rings, and therefore the gun is pushed to be matched with a return spring 10 to achieve the functions of stopping and starting.

Furthermore, the piston sleeve is externally sleeved with a first sealing ring 5 and a fourth sealing ring 8, and the sealing ring grooves matched with the first sealing ring 5 and the fourth sealing ring 8 are formed in the outer portion of the piston head, so that the sealing performance is improved when the piston is connected with a spray gun by arranging the two sealing rings, and the work is more stable.

Example 2

The embodiment is further optimized on the basis of embodiment 1, a fifth sealing ring 13 is further sleeved outside the screw 11, the fifth sealing ring 13 is arranged on the right side of the overflow valve 12, and the sealing performance is further improved by arranging the fifth sealing ring.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a hydraulic switch of flexible release of liquid pressure propelling spring, includes base (2), install push rod (1) and micro-gap switch (14), its characterized in that in base (2): push rod (1) slides and sets up in micro-gap switch (14) top, base (2) right side fixed mounting has the piston cover, install in the piston cover rather than sliding connection's piston rod (3), piston rod (3) set up push rod (1) upper end right side and rather than fixed connection, the outside cover of piston rod (3) is equipped with the piston head, the outside cover of piston head right-hand member is equipped with reset spring (10), screw (11) are installed to piston rod (3) right-hand member, the outside cover of screw (11) is equipped with overflow valve (12), overflow valve (12) set up at reset spring (10) right-hand member, micro-gap switch (14) link to each other with plug (16) through wire (15).

2. The hydraulic switch of claim 1, wherein the hydraulic switch is characterized in that: piston rod (3) outside still overlaps and is equipped with first retaining ring (4), first retaining ring (4) set up in the piston head left side, first retaining ring (4) link to each other with the piston head through second sealing washer (6), the outside still overlaps and is equipped with third sealing washer (7) in piston head left side, third sealing washer (7) link to each other with the piston head through second retaining ring (9).

3. The hydraulic switch of claim 1 or 2, wherein the hydraulic switch is characterized in that: the outside cover of piston cover is equipped with first sealing washer (5) and fourth sealing washer (8).

4. The hydraulic switch of claim 3, wherein the hydraulic switch is characterized in that: and a sealing ring groove matched with the first sealing ring (5) and the fourth sealing ring (8) is formed in the outer part of the piston head.

5. The hydraulic switch of claim 3, wherein the hydraulic switch is characterized in that: and a fifth sealing ring (13) is further sleeved outside the screw (11), and the fifth sealing ring (13) is arranged on the right side of the overflow valve (12).

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