CN210187465U

CN210187465U - Liquid spraying device capable of being started and stopped automatically by one key

Info

Publication number: CN210187465U
Application number: CN201921043890.9U
Authority: CN
Inventors: Qing Li; 李晴
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-03-27
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a one-key type automatic start-stop liquid spraying device, which comprises a booster pump, a liquid spraying gun and an automatic start-stop device; automatic open and stop device includes the casing, pressure switch, sealed cushion A, flexible unit, sealed unit and support piece, the casing has T die cavity, the three tip of T die cavity all is equipped with the opening, wherein, first end and second end are located same straight line, first end is connected with the play liquid end of booster pump, the second end communicates with the feed liquor end of hydrojet rifle, support piece sets firmly in the second end and has the liquid through hole, flexible unit both ends correspond and support piece, sealed unit is connected, sealed unit is separated from/seals in first end by booster pump play liquid end hydraulic pressure size, pressure switch installs and controls opening and stopping of booster pump in the third end, sealed cushion A seals on pressure switch, and receive the switching of hydraulic pressure size control pressure switch in the T die cavity. The utility model provides a hydrojet device, opening of accessible control hydrojet rifle stops the realization and opens the control that stops to the booster pump.

Description

Liquid spraying device capable of being started and stopped automatically by one key

Technical Field

The utility model relates to a pressurization injection apparatus field, concretely relates to automatic hydrojet device that stops that opens of a key formula.

Background

The existing liquid spray gun type high-pressure cleaning machine comprises a frame, a motor, a booster pump and a liquid spray gun, wherein the booster pump is connected with the liquid spray gun through a water pipe, the motor drives the booster pump to spray water out of the liquid spray gun after boosting, a booster pump control switch is arranged on the frame, and a trigger switch is arranged on the liquid spray gun.

When the existing cleaning machine is used, a booster pump control switch on a frame is firstly opened, when a motor and a booster pump are in a working state, a trigger on a liquid spraying gun is pulled, the liquid spraying gun sprays high-pressure liquid, the liquid spraying gun stops working after the trigger is loosened, then the booster pump is closed, so that the booster pump needs to be opened and closed for a long time, and when the liquid spraying gun stops working after the trigger is loosened, the booster pump is in an idle running state, water flows in the booster pump in a circulating mode, and electric power resources are wasted.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a one-key type automatic start-stop liquid spraying device which can control the start-stop of a booster pump by starting and stopping a liquid spraying gun, so that the step-by-step control on the start-stop of the liquid spraying gun and the booster pump is avoided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a one-key type automatic start-stop liquid spraying device comprises a booster pump, a liquid spraying gun and an automatic start-stop device;

the automatic start-stop device comprises a shell, a pressure switch, a sealing rubber gasket A, a telescopic unit, a sealing unit and a support piece, wherein a T-shaped cavity is arranged in the shell, three end parts of the T-shaped cavity are respectively provided with an opening, a first end of the T-shaped cavity and a second end of the T-shaped cavity are positioned on the same straight line, the first end is connected with a liquid outlet end of the booster pump through a first pipe body, the second end is communicated with a liquid inlet end of the liquid spraying gun through a second pipe body, the support piece is fixedly arranged on the inner wall of the second end, the support piece is provided with at least one liquid through hole, one end of the telescopic unit is telescopically connected with the support piece, the other end of the telescopic unit is fixedly connected with the sealing unit, the sealing unit is separated from/sealed at the first end by the hydraulic pressure of the liquid outlet end, the pressure switch is arranged in a third end of the T-shaped cavity and controls, the sealing rubber gasket A is sealed on the pressure switch and is controlled by the hydraulic pressure in the T-shaped cavity to be opened and closed.

The utility model provides a when the hydrojet device that one-touch automatic opened and shut down need to be opened, pull hydrojet rifle switch at first and make hydrojet rifle be in the open mode, the liquid in T type intracavity passes through the second end and flows to hydrojet rifle department this moment, hydraulic pressure in T type intracavity reduces, later pressure switch resets and opens the booster pump, after the booster pump is opened, the high-pressure liquid of booster pump play liquid end output forces the seal unit to break away from the first end and makes the first end be in the open mode, liquid is continuous to flow to hydrojet rifle; when the liquid spraying device needs to be closed, the liquid spraying gun switch is pulled to enable the liquid spraying gun to be in a closed state, at the moment, liquid in the T-shaped cavity cannot be discharged, and the liquid is impacted by high-pressure liquid of the booster pump, so that the pressure switch is in a compression state, and the booster pump is turned off.

The utility model provides an automatic hydrojet device who opens and stop of key formula, open of accessible control hydrojet rifle and open and stop the realization and open the control that stops to the booster pump, open and stop time front and back difference of hydrojet rifle and booster pump is no longer than 3 seconds moreover, the start-stop of substep control hydrojet rifle and booster pump has been avoided like this, the time that the switch booster pump consumed has significantly reduced to help improving workman's work efficiency and productivity ratio, avoided causing the idle running of booster pump because of the switch booster pump simultaneously, do benefit to the life-span of extension booster pump.

In order to better implement the above technical solution, preferably, the support member includes an outer ring, an inner ring disposed at the center of the outer ring, and a plurality of connecting rods connecting the outer ring and the inner ring, and a liquid through hole is formed between two adjacent connecting rods;

the telescopic unit comprises a movable rod and a compression spring, one end of the movable rod is fixedly connected with the sealing unit, the other end of the movable rod is connected with a central hole of the inner ring in a sliding mode, the compression spring is sleeved on the movable rod, and the compression spring is located between the sealing unit and the supporting piece.

Preferably, the telescopic unit further comprises a telescopic pipe, two ends of the telescopic pipe are respectively connected to the inner ring and the sealing unit, and the compression spring is sleeved between the telescopic pipe and the movable rod.

Preferably, the telescopic unit comprises a sleeve, a movable rod, a compression spring and a second sealing rubber gasket, the sleeve is vertically and fixedly arranged on the support piece, the compression spring is arranged in the sleeve, one end of the movable rod extends into the sleeve and is connected with the compression spring through the second sealing rubber gasket, and the other end of the movable rod is connected with the sealing unit.

Preferably, the support member includes an outer ring, a positioning disc disposed at the center of the outer ring, and a plurality of connecting rods connecting the positioning disc and the outer ring, and the liquid through hole is formed between two adjacent connecting rods.

Preferably, the outer ring has an external thread and the first end has an internal thread threadedly engaged with the outer ring.

Preferably, the sealing unit comprises a supporting disc and a sealing rubber ring sleeved on the outer wall of the supporting disc, and the supporting disc is fixedly connected with the movable rod.

Preferably, the axial section of the supporting disc is I-shaped, and the sealing rubber is sleeved in the middle of the supporting disc.

Preferably, the third end is detachably provided with a sealing cover, and the center of the sealing cover is provided with a threading hole.

Preferably, the sealing rubber gasket a has a protrusion which is matched with the pressure button of the pressure switch in shape and protrudes towards the T-shaped cavity, and the pressure button of the pressure switch is disposed in the protrusion.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

FIG. 1 is a schematic external view of a one-touch automatic on-off liquid ejecting apparatus according to embodiment 1 or 2;

FIG. 2 is an internal schematic view of an automatic start-stop apparatus according to embodiment 1;

FIG. 3 is a schematic view of the support member of FIG. 2;

FIG. 4 is an internal schematic view of an automatic start-stop apparatus according to embodiment 2;

FIG. 5 is a schematic view of the support member of FIG. 4;

in the drawings, the reference numbers are as follows:

1. a booster pump;

2. a liquid spray gun;

3. an automatic start-stop device; 31. a housing; 31a, a T-shaped cavity; 31b, a first end; 31c, a second end; 31d, a third end; 32. a pressure switch; 32a, a manual key; 33. sealing the rubber gasket A; 33a, a protrusion; 341. a movable rod; 342. a compression spring; 343. a telescopic pipe; 344. a sleeve; 345. a second sealing rubber gasket; 351. a support disc; 352. sealing the rubber ring; 36. a support member; 36a, an outer ring; 36b, an inner ring; 36c, a connecting rod; 36d, a liquid through hole; 36e, positioning the disc; 37. sealing cover;

4. a first pipe body;

5. a second tube body;

6. a third tube.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 to 3, this embodiment provides a liquid jet equipment that automatic start-stop of a key formula, including booster pump 1, hydrojet rifle 2 and automatic start-stop device 3, wherein, the feed liquor end of booster pump 1 is through third body 6 and liquid storage device intercommunication, liquid storage device can be pond, water tank, water pipe, river, oil tank/oil tank etc. the play liquid end of booster pump 1 is through first body 4 and the automatic feed liquor end intercommunication that opens and stop device 3, the feed liquor end of hydrojet rifle 2 is through second body 5 and hydrojet rifle 2 intercommunication to realize that the liquid in the liquid storage device passes through hydrojet rifle 2 blowout.

As shown in fig. 2, the automatic start-stop device 3 includes a housing 31, a pressure switch 32, a sealing rubber gasket a33, a telescopic unit, a sealing unit and a support 36, wherein a T-shaped cavity 31a is provided in the housing 31, three ends of the T-shaped cavity 31a are respectively provided with an opening, a first end 31b of the T-shaped cavity 31a and a second end 31c of the T-shaped cavity 31a are located on the same straight line, the first end 31b is connected to a liquid outlet end of the booster pump 1 through a first tube 4, the second end 31c is communicated with a liquid inlet end of the liquid spray gun 2 through a second tube 5, the support 36 is fixedly disposed on an inner wall of the second end 31c, the support 36 has at least one liquid through hole 36d, one end of the telescopic unit is telescopically connected to the support 36, the other end of the telescopic unit is fixedly connected to the sealing unit, the sealing unit is separated from/sealed to the first end 31b by the liquid pressure of the liquid outlet end of the booster pump 1, the pressure switch 32 is When the pressure switch 32 stops, the sealing rubber gasket A33 is sealed on the pressure switch 32, and the pressure switch 32 is controlled to be opened and closed by the hydraulic pressure in the T-shaped cavity 31 a.

In this embodiment, the housing 31 is a T-shaped structure commonly used in the prior art, the first end 31b and the second end 31c are preferably cylindrical to facilitate connection with the first tube 4 and the second tube 5, and the third end 31d is suitably shaped to mount the pressure switch 32.

In this embodiment, the first end 31b is a liquid inlet end of the automatic start-stop device 3, and the second end 31c is a liquid outlet end of the automatic start-stop device 3.

As shown in fig. 3, the support 36 includes an outer ring 36a, an inner ring 36b disposed at the center of the outer ring 36a, and a plurality of connecting rods 36c connecting the outer ring 36a and the inner ring 36b, and a liquid through hole 36d is formed between two adjacent connecting rods 36 c;

in this embodiment, the outer ring 36a has external threads, the first end 31b has internal threads screwed with the outer ring 36a, and the support 36 is detachably connected with the housing 31 by screwing the outer ring 36a with the first end 31 b.

In this embodiment, the number of the connecting rods 36c is three, and two adjacent connecting rods 36c form an included angle of 120 °.

As shown in fig. 2, the telescopic unit includes a movable rod 341 and a compression spring 342, one end of the movable rod 341 is fixedly connected to the sealing unit, the other end is slidably connected to the central hole of the inner ring 36b, the compression spring 342 is sleeved on the movable rod 341, and the compression spring 342 is located between the sealing unit and the support 36.

In this embodiment, the closing unit is pressed by the impact force of the pressurizing pump 3 to separate from the first end 31b, the movable rod 341 moves along the central hole of the inner ring 36b to the second end 31c after the compression of the retracting unit, and the compression spring 342 is deformed under pressure, so that the first end 31b, the T-shaped cavity 31a and the second end 31c form a liquid passage.

In this embodiment, a telescopic tube 343 is further included, two ends of the telescopic tube 343 are respectively connected to the inner ring 36b and the sealing unit, and the compression spring 342 is sleeved between the telescopic tube 343 and the movable rod 341. The telescopic tube 343 is provided to isolate the compression spring 342 from the liquid, and to prevent the compression spring 342 from rusting and affecting the telescopic performance of the compression spring, and the telescopic tube 343 is preferably a corrugated hose.

As shown in fig. 2, the sealing unit includes a supporting disk 351 and a sealing rubber ring 352 sleeved on an outer wall of the supporting disk 351, and the supporting disk 351 is fixedly connected to the movable rod 341. Preferably, the supporting disk 351 has an i-shaped axial cross-section, and the sealing rubber ring 352 is sleeved on the middle portion of the supporting disk 351, so that the sealing rubber ring 352 is prevented from falling off from the supporting disk 351 during the moving process.

In this embodiment, the third end 31d is detachably mounted with a sealing cover 37 by a conventional manner such as a snap, a screw combination, etc., a threading hole is opened at the center of the sealing cover 37, and a lead electrically connected to the booster pump 2 of the push switch 32 penetrates through the threading hole.

In this embodiment, the sealing rubber pad a33 has a protrusion 33a matching with the shape of the pressure button of the pressure switch 32 and protruding toward the T-shaped cavity 31a, the pressure button of the pressure switch 32 is disposed in the protrusion 33a, and the protrusion 33a is provided to help the sealing rubber pad a33 combine with the pressure button of the pressure switch 32.

In this embodiment, the pressure switch 32 is further provided with a manual button 32a, the manual button 32a is disposed on the surface of the housing 31, and when the pressure button fails in the automatic start-stop device 3, the start and stop of the booster pump 2 can be controlled by the manual button 32 b.

The working principle of the one-button automatic start-stop liquid spraying device provided by the embodiment is as follows:

when the booster pump 1 and the liquid spraying gun 2 are in an opening state, the sealing unit is impacted by the output hydraulic pressure of the booster pump 1 to be separated from the first end 31b, the T-shaped cavity 31a and the second end 31c form an overflowing channel, and liquid in the liquid storage device is continuously output through the booster pump 1, the automatic start-stop device 3 and the liquid spraying gun 2;

when the flow needs to be cut off, the liquid spraying gun 2 is closed, at this time, the liquid in the T-shaped cavity 31a cannot flow out through the second end 31, the booster pump 1 is still in the operating state, the pressure output by the booster pump 1 squeezes the pressure switch 32 to close the pressure switch 32, and the booster pump 2 automatically stops operating after the pressure switch 32 is closed.

When the liquid spraying gun 2 is required to be communicated, liquid in the T-shaped cavity 31a starts to flow to the liquid spraying gun 2, the pressure in the T-shaped cavity 31a gradually decreases until the pressure switch 32 automatically resets, after the pressure switch 32 resets, the booster pump is started, and liquid in the liquid storage device is continuously output through the booster pump 1, the automatic start-stop device 3 and the liquid spraying gun 2.

The automatic hydrojet device who stops that this embodiment provided, the accessible control hydrojet rifle open and stop the realization and open the control that stops to the booster pump, the start-stop time front and back of hydrojet rifle and booster pump differs by no more than 3 seconds moreover, avoided opening of substep control hydrojet rifle and booster pump to stop like this, the time that the switch booster pump consumed has significantly reduced, workman's work efficiency and productivity ratio have been improved, avoided simultaneously causing the idle running of booster pump because of the switch booster pump, do benefit to the life-span of extension booster pump.

Example 2:

referring to fig. 4 and 5, the present embodiment provides a one-touch automatic start-stop liquid ejecting apparatus, which is similar to embodiment 1 except for the structure of the telescopic unit and the support.

As shown in fig. 4, the telescopic unit includes a sleeve 344, a movable rod 341, a compression spring 342 and a second sealing rubber gasket 345, the sleeve 344 is vertically fixed on the support 36, the compression spring 342 is installed in the sleeve 344, one end of the movable rod 341 extends into the sleeve 344 and is connected with the compression spring 342 through the second sealing rubber gasket 345, and the other end of the movable rod 341 is connected with the sealing unit.

In this embodiment, the sealing unit is pressed to make the movable rod 341 go deep into the sleeve 344 and push the compression spring 342 to compress.

As shown in fig. 5, the support member 36 includes an outer ring 36a, a positioning disk 36e disposed in the center of the outer ring 36a, and a plurality of connecting rods 36c connecting the positioning disk 36e and the outer ring 36a, a liquid through hole 36d is formed between two adjacent connecting rods 36c, and in the present embodiment, the inner ring 36b in embodiment 1 is replaced with the positioning disk 36 e.

Compared with the telescopic unit and the support 36 provided in embodiment 1, the telescopic unit and the support 36 provided in this embodiment can replace the telescopic tube 343 with the second sealing rubber gasket 345, thereby avoiding the installation difficulty increased by the arrangement of the telescopic tube 343 and improving the sealing performance of the compression spring 342.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a liquid spray device that automatic opening of a key formula was stopped, includes booster pump (1) and hydrojet rifle (2), its characterized in that: the device also comprises an automatic start-stop device (3);

the automatic start-stop device (3) comprises a shell (31), a pressure switch (32), a sealing rubber gasket A (33), a telescopic unit, a sealing unit and a support piece (36), wherein a T-shaped cavity (31a) is arranged in the shell (31), three end parts of the T-shaped cavity (31a) are respectively provided with an opening, a first end (31b) of the T-shaped cavity (31a) and a second end (31c) of the T-shaped cavity (31a) are located on the same straight line, the first end (31b) is connected with a liquid outlet end of the booster pump (1) through a first pipe body (4), the second end (31c) is communicated with a liquid inlet end of the liquid spraying gun (2) through a second pipe body (5), the support piece (36) is fixedly arranged on the inner wall of the second end (31c), the support piece (36) is provided with at least one liquid through hole (36d), one end of the telescopic unit is telescopically connected with the support piece (36), the other end of flexible unit with sealing unit fixed connection, sealing unit receives booster pump (1) goes out liquid end hydraulic pressure size break away from/seal in first end (31b), pressure switch (32) are installed in the third end (31d) of T die cavity (31a) and through wire control the opening and stop of booster pump (1), sealed cushion A (33) seal in on pressure switch (32), and receive hydraulic pressure size control in T die cavity (31a) pressure switch (32) switching.

2. The one-touch automatic start-stop liquid spraying device as claimed in claim 1, wherein:

the support piece (36) comprises an outer ring (36a), an inner ring (36b) arranged in the center of the outer ring (36a) and a plurality of connecting rods (36c) for connecting the outer ring (36a) and the inner ring (36b), and a liquid through hole (36d) is formed between every two adjacent connecting rods (36 c);

the telescopic unit comprises a movable rod (341) and a compression spring (342), one end of the movable rod (341) is fixedly connected with the sealing unit, the other end of the movable rod is in sliding connection with a central hole of the inner ring (36b), the compression spring (342) is sleeved on the movable rod (341), and the compression spring (342) is positioned between the sealing unit and the supporting piece (36).

3. A one-touch, automatic start and stop, spray device as claimed in claim 2, wherein: the telescopic unit further comprises a telescopic pipe (343), two ends of the telescopic pipe (343) are respectively connected to the inner ring (36b) and the sealing unit, and the compression spring (342) is sleeved between the telescopic pipe (343) and the movable rod (341).

4. The one-touch automatic start-stop liquid spraying device as claimed in claim 1, wherein: the telescopic unit comprises a sleeve (344), a movable rod (341), a compression spring (342) and a second sealing rubber gasket (345), the sleeve (344) is vertically and fixedly arranged on the support member (36), the compression spring (342) is arranged in the sleeve (344), one end of the movable rod (341) extends into the sleeve (344) and is connected with the compression spring (342) through the second sealing rubber gasket (345), and the other end of the movable rod (341) is connected with the sealing unit.

5. A one-touch, automatically activated and deactivated liquid spraying device as claimed in claim 4, wherein: the support piece (36) comprises an outer ring (36a), a positioning disc (36e) arranged in the center of the outer ring (36a) and a plurality of connecting rods (36c) connecting the positioning disc (36e) and the outer ring (36a), and the liquid through hole (36d) is formed between every two adjacent connecting rods (36 c).

6. A one-touch, automatically-activated liquid spraying device as claimed in claim 3 or 5, wherein: the outer ring (36a) has an external thread and the first end has an internal thread that is threadedly engaged with the outer ring (36 a).

7. The one-touch automatic start-stop liquid spraying device as claimed in claim 6, wherein: the sealing unit comprises a supporting disc (351) and a sealing rubber ring (352) sleeved on the outer wall of the supporting disc (351), and the supporting disc (351) is fixedly connected with the movable rod (341).

8. The one-touch, automatically-started and stopped liquid spraying device as claimed in claim 7, wherein: the axial section of the supporting disc (351) is I-shaped, and the middle part of the supporting disc (351) is sleeved with the sealing rubber ring (352).

9. The one-touch automatic start-stop liquid spraying device as claimed in claim 1, wherein: third end (31d) demountable installation has closing cap (37), the through wires hole has been seted up at closing cap (37) center.

10. The one-touch automatic start-stop liquid spraying device as claimed in claim 6, wherein: the sealing rubber gasket A (33) is provided with a bulge (33a) which is matched with the pressure key of the pressure switch (32) in shape and protrudes towards the T-shaped cavity (31a), and the pressure key of the pressure switch (32) is arranged in the bulge (33 a).