CN218796672U

CN218796672U - Constant-current device of sprayer

Info

Publication number: CN218796672U
Application number: CN202223108230.9U
Authority: CN
Inventors: 潘世根
Original assignee: Taizhou City Hangyu Plastic Co ltd
Current assignee: Taizhou City Hangyu Plastic Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-04-07
Anticipated expiration: 2032-11-21

Abstract

The utility model provides a constant current device of atomizer belongs to atomizer technical field. It has solved the unstable liquid flow velocity of flow among the prior art and can cause the undulant problem of atomizer liquid medicine spraying volume and liquid medicine spraying angle. This constant current device of atomizer, including the casing subassembly that has the feed liquor end and go out the liquid end, be provided with the valve body in the casing subassembly, the inner wall of casing subassembly has the sealed convex part of annular and follows a plurality of pressures that the circumference interval set up and support the piece, and the valve body includes valve casing, lid and establishes the valve gap subassembly on the valve casing and sets up the elastic component in the valve casing, press and support the piece with the marginal pressure of valve gap subassembly and support the top at the valve casing, the elastic component supports the valve gap subassembly top in order to cut off feed liquor end and play liquid end on the sealed convex part of annular, elastic deformation can take place for the valve gap subassembly so that the feed liquor end communicates with play liquid end. The utility model has the advantages of can guarantee that the liquid medicine sprays volume and liquid medicine and spray the unanimous atomization effect of states such as angle.

Description

Constant-current device of sprayer

Technical Field

The utility model belongs to the technical field of the atomizer, a constant current device of atomizer is related to.

Background

At present, common sprayers include a manual sprayer and an electric sprayer, and the working principle of the manual sprayer and the electric sprayer is that liquid medicine is atomized and sprayed out through a spray head under high pressure, the two sprayers can meet the requirement of converting liquid flow into liquid mist, when the liquid flow pressure in a liquid spraying pipeline of the sprayers changes, the liquid flow speed and the liquid medicine spraying angle in the liquid spraying pipeline of the two sprayers change along with the liquid flow pressure, so that the sprayers cannot guarantee the atomizing effect of consistent states of liquid medicine spraying amount, liquid medicine spraying angle and the like, particularly the manual sprayer, along with the action of shaking a rocker of an operator, the liquid flow pressure in the liquid spraying pipeline of the sprayers changes obviously along with the periodic operation of the user (note that the minimum liquid flow pressure in the liquid spraying pipeline can also meet the requirement of converting liquid flow into liquid mist), so that the liquid flow speed in the liquid spraying pipeline is unstable, the unstable liquid flow speed can cause the fluctuation of the liquid medicine spraying amount and the liquid medicine spraying angle of the sprayers to affect the pesticide application effect of pesticides such as pesticides and herbicides, and the pest control is affected.

Disclosure of Invention

The utility model aims at providing a to prior art there is above-mentioned problem, provides a constant current device of atomizer. The utility model discloses the technical problem that will solve makes the interior liquid stream of hydrojet pipeline have comparatively stable velocity of flow.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a constant current device of atomizer, is including the casing subassembly that has the feed liquor end and go out the liquid end, be provided with the valve body in the casing subassembly, its characterized in that, casing subassembly's inner wall has the sealed convex part of annular and follows a plurality of pressure support pieces that circumference interval set up, and the valve body includes valve casing, the valve gap subassembly that the lid was established on the valve casing and sets up the elastic component in the valve casing, press support piece to support the edge pressure of valve gap subassembly at the top of valve casing, the elastic component supports valve gap subassembly top on the sealed convex part of annular in order to cut off feed liquor end and play liquid end, elastic deformation can take place for the valve gap subassembly so that feed liquor end and play liquid end communicate.

When the sprayer works, high-pressure liquid flows pass through the constant-flow device and impact the valve cover assembly to enable the valve cover assembly to generate elastic deformation so that the liquid inlet end and the liquid outlet end of the liquid flow channel are communicated, the edge of the valve cover assembly is pressed against the top edge of the valve shell by the pressing and supporting block, and the inner side of the valve cover assembly is abutted against the elastic member so that the valve cover assembly can achieve the maximum deformation amount (note that the minimum liquid flow pressure in the liquid spraying pipeline can also enable the valve cover assembly to achieve the maximum deformation amount and can meet the requirement of converting the liquid flow into liquid mist).

In foretell constant current device of atomizer, the valve gap subassembly is including the pressure-bearing piece that is used for the sealed convex part ring center of shutoff annular, be used for sealing the valve casing and can take place elastic deformation's sealed pad and be used for the locating piece of cover establishing the elastic component, pressure-bearing piece, sealed pad and locating piece are connected through the spliced pole of wearing to establish the three in proper order, it has the water clearance to cross between the inner wall of spliced pole and the sealed convex part of annular. The connecting column enables the pressure bearing block, the sealing gasket and the positioning block to form a unified whole, so that better linkage is realized; in addition, the bearing block can be when the atomizer is out of work on the one hand, separate the liquid stream passageway better, on the other hand also can bear the high-pressure liquid stream better, avoid high-pressure liquid stream direct action on the sealing gasket, make the high-pressure liquid stream through assaulting the bearing block and then promote sealed the pad to take place elastic deformation, the locating piece can make the elasticity of elastic component act on the sealing gasket more equably, thereby more be favorable to sealed elastic deformation and the resetting of filling up, the water gap can form the narrow tube effect, can shorten the time that sealed the pad reaches the maximum deformation volume, thereby make the liquid stream maintain stable velocity of flow better.

In the above constant-current device for the sprayer, the sealing gasket is provided with an annular groove, the bottom wall of the annular groove is located between the valve housing and the positioning block, the pressing block and the annular sealing convex part are respectively pressed against the edges of two sides of the annular groove, and the pressing block presses the sealing gasket against the edge of the top of the valve housing. The annular groove with the structure enables the sealing gasket to be easily elastically deformed, and is also beneficial to the resetting of the sealing gasket after elastic deformation, so that the time for the sealing gasket to reach the maximum deformation can be shortened, and the stable flow rate of the liquid flow can be better maintained.

In the above constant-current device for the sprayer, the bottom of the valve casing is provided with a plurality of limiting blocks, the inner wall of the casing assembly is further provided with limiting steps for abutting against the limiting blocks, and a liquid passing channel is formed between the outer wall of the valve body and the inner wall of the casing assembly. The stopper butt of valve casing bottom makes can tight thread joint close between valve casing and the valve gap subassembly on spacing step, avoids the liquid stream to get into the normal use of the inside influence constant current device of valve casing to make the liquid stream maintain stable velocity of flow better, simultaneously, can not influence passing through of liquid stream behind stopper and the spacing step butt, make cross the liquid passageway and go out the liquid end and remain the intercommunication throughout.

In the constant-current device of the sprayer, the top of the pressure-bearing block is abutted against the bottom of the annular sealing convex part, the top of the sealing gasket is abutted against the bottom of the pressure-bearing block, and the bottom of the sealing gasket is abutted against the top of the positioning block. The top of the pressure bearing block is abutted against the bottom of the annular sealing convex part, so that the pressure bearing block can better separate the liquid flow channel when the sprayer does not work; the top of sealing up is connected with the bottom of bearing block mutually, the bottom of sealing up and the top looks butt of locating piece for sealed the pad can take place elastic deformation better and reset, can keep the state after the deformation more steadily after making sealed elastic deformation simultaneously, thereby make the liquid stream maintain stable velocity of flow better.

In the above constant-current device for the sprayer, the housing assembly includes a first connecting housing and a second connecting housing which are in threaded connection, a sealing groove is formed in the second connecting housing, a sealing ring is arranged in the sealing groove, and the first connecting housing presses the sealing ring against the bottom wall of the sealing groove. The structure enables the first connecting shell and the second connecting shell of the constant-current device shell assembly to be of a detachable connection structure, so that the constant-current device is more convenient to overhaul and maintain, and meanwhile the sealing ring can prevent liquid flow from leaking from the joint of the first connecting shell and the second connecting shell.

Compared with the prior art, the constant current device of the sprayer has the advantages that:

1. after the constant-current devices are additionally arranged on different sprayers, the liquid flow passing through the constant-current devices can maintain stable flow velocity, and therefore the atomizing effect that the states of liquid medicine spraying amount, liquid medicine spraying angle and the like are consistent is guaranteed.

2. The constant-current device of the sprayer can be installed between the hose and the spray rod and also between the spray rod and the spray head, the installation position is flexible and free, and in addition, the shell assembly of the constant-current device is detachably connected, so that the constant-current device is more convenient to overhaul and maintain.

Drawings

Fig. 1 is a schematic perspective view of the constant flow device of the sprayer.

Fig. 2 is a cross-sectional view of the constant flow device of the present sprayer.

Fig. 3 is an exploded view of the constant flow device of the present sprayer.

Fig. 4 is a schematic perspective view of the first connecting housing of the constant flow device of the sprayer.

In the figure, 1, a liquid passing channel; 2. a housing assembly; 2a1, a first connecting shell; 2a2, a second connecting shell; 2b1, a liquid inlet end; 2b2, a liquid outlet end; 2c1, an annular sealing protrusion; 2c2, a pressing block; 3. a valve body; 3a1, a valve housing; 3a11 and a limiting block; 3a2, a valve cover assembly; 3a21, a pressure bearing block; 3a22, a gasket; 3a23, a positioning block; 3a24, connecting column; 4. an elastic member; 5. an annular groove; 6. a limiting step; 7. a seal ring; 8. a water passing gap.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The constant-flow device of the sprayer is characterized in that the inner wall of the shell component 2 is provided with an annular sealing convex part 2c1 and a plurality of pressing and abutting blocks 2c2 arranged at intervals along the circumferential direction, the valve body 3 comprises a valve shell 3a1, a valve cover component 3a2 covering the valve shell 3a1 and an elastic part 4 arranged in the valve shell 3a1, the pressing and abutting block 2c2 presses the edge of the valve cover component 3a2 to abut against the top of the valve shell 3a1, the elastic part 4 abuts the valve cover component 3a2 to the annular sealing convex part 2c1 to block the liquid inlet end 2b1 from the liquid outlet end 2b2, and the valve cover component 3a2 can be elastically deformed to enable the liquid inlet end 2b1 to be communicated with the liquid outlet end 2b 2. Particularly, valve gap subassembly 3a2 is including the pressure-bearing block 3a21 that is used for the sealed convex part 2c1 ring center of shutoff, be used for sealing valve casing 3a1 and can take place elastic deformation's sealed 3a22 and be used for the cover to establish the locating piece 3a23 of elastic component 4, pressure-bearing block 3a21, sealed 3a22 and locating piece 3a23 are connected through wearing to establish the spliced pole 3a24 of three in proper order, have water clearance 8 between the inner wall of spliced pole 3a24 and the sealed convex part 2c1 of annular. The shell assembly 2 comprises a first connecting shell 2a1 and a second connecting shell 2a2 which are in threaded connection, a sealing groove is formed in the second connecting shell 2a2, a sealing ring 7 is arranged in the sealing groove, and the first connecting shell 2a1 presses the sealing ring 7 to the bottom wall of the sealing groove. Further, the bottom of valve casing 3a1 has a plurality of stopper 3a11, the inner wall of casing subassembly 2 still is provided with the spacing step 6 that is used for with stopper 3a11 looks butt, form liquid passageway 1 between the outer wall of valve body 3 and the inner wall of casing subassembly 2. The seal gasket 3a22 of the present embodiment is preferably made of a rubber material.

Referring to fig. 2, 3 and 4, further, an annular groove 5 is provided on the sealing gasket 3a22, a bottom wall of the annular groove 5 is located between the valve housing 3a1 and the positioning block 3a23, the pressing block 2c2 and the annular sealing protrusion 2c1 are respectively pressed against two side edges of the annular groove 5, and the pressing block 2c2 presses the sealing gasket 3a22 against a top edge of the valve housing 3a 1. Further, referring to fig. 2, the top of the pressure receiving block 3a21 abuts against the bottom of the annular sealing protrusion 2c1, the top of the gasket 3a22 abuts against the bottom of the pressure receiving block 3a21, and the bottom of the gasket 3a22 abuts against the top of the positioning block 3a 23. When in use, the constant flow device of the sprayer can be arranged between the hose and the spray rod or between the spray rod and the spray head, when in an initial state, the elastic piece 4 pushes the valve cover component 3a2 against the annular sealing convex part 2c1 to separate the liquid inlet end and the liquid outlet end of the liquid flow channel 1, when the sprayer works, high-pressure liquid flows through the constant-flow device and impacts the pressure-bearing block 3a21 of the valve cover component 3a2, so that the pressure-bearing block 3a21 pushes the sealing gasket 3a22 of the valve cover component 3a2 to enable the sealing gasket 3a22 to generate elastic deformation, the liquid inlet end and the liquid outlet end of the liquid flow channel 1 are communicated, because the edge of the sealing gasket 3a22 is pressed against the top edge of the valve housing 3a1 by the pressing block 2c2, and the positioning block 3a23 of the valve cover assembly 3a2 is abutted against the elastic member 4, after the sealing gasket 3a22 reaches the maximum deformation amount (it should be noted that the minimum liquid flow pressure in the liquid spraying pipeline can also make the sealing gasket 3a22 reach the maximum deformation amount and can meet the requirement of converting the liquid flow into the liquid mist), even if the flow velocity of the liquid flow of the sprayer continues to increase (the flow velocity is larger, the liquid flow pressure is also larger), under the auxiliary support of the elastic force of the elastic element 4 (after the sealing gasket 3a22 of the valve cover component 3a2 reaches the maximum deformation amount, the maximum liquid flow pressure in the liquid spray pipeline cannot further compress the elastic element 4), the sealing gasket 3a22 can also keep the maximum deformation amount, so that the flow of liquid through the constant-flow device maintains a steady flow rate (which is related to the maximum deformation of the gasket 3a22 of the valve cover assembly 3a2 and the rigidity of the elastic member 4), when the sprayer stops operating, under the effect of elastic component 4, valve gap subassembly 3a2 resets, and then realizes guaranteeing that the liquid medicine sprays the unanimous atomization effect of states such as volume and liquid medicine spraying angle.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The constant-flow device of the sprayer comprises a shell assembly (2) with a liquid inlet end (2 b 1) and a liquid outlet end (2 b 2), wherein a valve body (3) is arranged in the shell assembly (2), and is characterized in that the inner wall of the shell assembly (2) is provided with an annular sealing convex part (2 c 1) and a plurality of pressing and abutting blocks (2 c 2) arranged at intervals along the circumferential direction, the valve body (3) comprises a valve shell (3 a 1), a valve cover assembly (3 a 2) covering the valve shell (3 a 1) and an elastic piece (4) arranged in the valve shell (3 a 1), the pressing and abutting blocks (2 c 2) press the edge of the valve cover assembly (3 a 2) to the top of the valve shell (3 a 1), the elastic piece (4) abuts the valve cover assembly (3 a 2) to the annular sealing convex part (2 c 1) to block the liquid inlet end (2 b 1) and the liquid outlet end (2 b 2), and the valve cover assembly (3 a 2) can be elastically deformed to enable the liquid inlet end (2 b 1) to be communicated with the liquid outlet end (2).

2. The constant-flow device of the sprayer according to claim 1, wherein the valve cover assembly (3 a 2) comprises a pressure-bearing block (3 a 21) for sealing the annular center of the annular sealing convex part (2 c 1), a sealing gasket (3 a 22) for sealing the valve housing (3 a 1) and capable of elastically deforming, and a positioning block (3 a 23) for sleeving the elastic part (4), the pressure-bearing block (3 a 21), the sealing gasket (3 a 22) and the positioning block (3 a 23) are connected through a connecting column (3 a 24) which sequentially penetrates through the three parts, and a water passing gap (8) is formed between the connecting column (3 a 24) and the inner wall of the annular sealing convex part (2 c 1).

3. The constant flow device of the sprayer according to claim 2, wherein the sealing gasket (3 a 22) is provided with an annular groove (5), the bottom wall of the annular groove (5) is located between the valve casing (3 a 1) and the positioning block (3 a 23), the pressing block (2 c 2) and the annular sealing convex part (2 c 1) are respectively pressed against two side edges of the annular groove (5), and the pressing block (2 c 2) presses the sealing gasket (3 a 22) against the top edge of the valve casing (3 a 1).

4. The constant flow device of the sprayer according to claim 2, wherein the bottom of the valve casing (3 a 1) is provided with a plurality of limit blocks (3 a 11), the inner wall of the casing assembly (2) is further provided with limit steps (6) for abutting against the limit blocks (3 a 11), and a liquid passing channel (1) is formed between the outer wall of the valve body (3) and the inner wall of the casing assembly (2).

5. The constant flow device of a sprayer according to claim 2, wherein the top of the pressure-bearing block (3 a 21) abuts against the bottom of the annular sealing protrusion (2 c 1), the top of the gasket (3 a 22) abuts against the bottom of the pressure-bearing block (3 a 21), and the bottom of the gasket (3 a 22) abuts against the top of the positioning block (3 a 23).

6. A constant current device for a sprayer according to claim 1, 2, 3, 4 or 5, wherein the housing assembly (2) comprises a first connecting shell (2 a 1) and a second connecting shell (2 a 2) which are in threaded connection, a sealing groove is formed in the second connecting shell (2 a 2), a sealing ring (7) is arranged in the sealing groove, and the first connecting shell (2 a 1) presses the sealing ring (7) against the bottom wall of the sealing groove.