WO2016115809A1

WO2016115809A1 - Portable and ultra-low volume sprayer

Info

Publication number: WO2016115809A1
Application number: PCT/CN2015/081045
Authority: WO
Inventors: 沈春华; 郭太
Original assignee: 深圳市隆瑞科技有限公司
Priority date: 2015-01-19
Filing date: 2015-06-09
Publication date: 2016-07-28

Abstract

Disclosed is a portable and ultra-low volume sprayer, comprising a medicine chest (1), wherein a spray solution is filled into the medicine chest. A sunken area is arranged on the medicine chest. An electromotor (2) is arranged in the sunken area. A closed pressure cavity (9) is formed between the electromotor and the sunken area. The pressure cavity provides pressure for the medicine chest to spray the spray solution, and the sunken area is located approximately at the geometrical center region of the medicine chest. The overall structure of the sprayer is of a simple design and is convenient to use.

Description

Portable ultra low volume sprayer

Technical field

The invention relates to a portable ultra low volume sprayer.

Background technique

Portable ultra-low volume sprayers are widely used in people's lives, such as hospital spray disinfectant, gardener spray insecticide, farmland spray pesticides, but the existing portable sprayer, the medicine box and the pressure chamber are separate and independent In the part, a fixed seal is sealed between the medicine box and the pressure chamber, and the nozzle part is also separated from the main machine, so there are problems such as complicated design of the body, inconvenient processing, large volume, and high price.

Summary of the invention

The invention provides a novel portable ultra-low-volume sprayer, which has simple overall structure design, convenient use, simple processing, less installation process, and comfortable and safe when carried by the back.

A portable ultra-low-volume sprayer comprises a medicine box, wherein the medicine box is filled with a spray liquid, the medicine box is provided with an invagination area, and the motor is arranged in the invagination area, A closed pressure chamber is formed between the motor and the invagination region, the pressure chamber providing pressure to the medicine tank to spray the spray liquid, the recessed area being located substantially in a geometric central region of the medicine box.

Wherein, a rubber sealing ring is disposed between the motor and the indented area of the medicine box, and the sealing ring is nested and fixed with the inner wall of the indented area to form a gap between the motor and the indented area. Closed pressure chamber. The two inner edges of the sealing ring form a protruding edge inwardly, and the two protruding edges form a groove to be fixedly coupled with the boss on the outer side of the motor. a plurality of bosses are disposed on the outer side of the sealing ring, and the bosses are evenly distributed outside the sealing ring; The inner side of the recessed area of the medicine box is provided with a groove corresponding to the boss, and the boss on the outer side of the seal ring is fixedly fixed with the groove on the medicine box. The outer side of the sealing ring is further provided with a half cylindrical protrusion, and the inner side of the indentation area of the medicine box is provided with an arcuate groove corresponding to the semi-cylindrical protrusion. A through hole is arranged on the sealing ring near the semi-cylindrical protrusion, and the through hole serves as a pipeline passage. A hollow groove is disposed between the plurality of bosses on the outer side of the seal ring.

Wherein, the sealing ring is further provided with a plurality of screw holes, wherein the screw holes are provided with expansion screws; or the sealing ring is provided with a fixing ring, and the fixing ring is stuck in the sealing ring In addition, it is stuck between the medicine box and the motor.

Wherein, the motor peripheral has a protective shell, the protective shell is fixed with the medicine box, and the protective shell is used to protect the motor from being exposed. The medicine box and the protective shell are covered in a vertical direction, a protruding portion is arranged on the connecting surface of the medicine box and the protective shell, and a guiding surface is arranged below the protruding portion, and the guiding surface is The angle between the medicine box and the protective shell is less than 90 degrees; the protective shell is provided with a leg assembly, and the leg assembly is provided with a guiding surface 2, the guiding surface 2 and the guiding surface a parallel, and located below the guiding surface, when the medicine box and the protective shell are covered in the vertical direction, the protruding portion is fastened to the guiding surface 2, so that the guiding surface is guided and guided Face two is in close contact.

Wherein, the leg assembly is further provided with a leg, and the leg is disposed under the guiding surface 2 for contacting the ground to stably stand the sprayer on the ground. The leg is a U-shaped cross section, and the U-shaped opening is outward. The U-shaped sheet-like structure and the guiding surface are integrally formed of plastic parts. The leg assembly and the protective shell are integrally formed plastic parts. The leg assemblies are symmetrically disposed on both sides of the bottom of the protective case; the corresponding protrusions are also symmetrically disposed in the medicine box and the protective case. On both sides of the face.

Wherein, the filling port of the medicine box is arranged above the medicine box, and a handle is arranged above the medicine box, and the handle is convenient for lifting the medicine box upward. The medicine box is provided with a spray head directly in front of the pressure chamber, and the spray head is used for spraying the spray liquid in the medicine box outward. The medicine box is further provided with a flow control valve above the pressure chamber area, and the flow control valve is used for adjusting the outward spraying amount of the spraying liquid in the medicine box per unit time.

The portable ultra-low-volume sprayer realized above has a simplified structure of the pressure chamber and the medicine box, and the assembly structure is simplified, the manufacturing process is reduced, the manufacturing difficulty is also reduced, the assembly procedure is further reduced, and the cost is effectively reduced; When carrying, the design of the protective case is more ergonomic, comfortable and safe.

DRAWINGS

Figure 1 is an exploded view of a portable ultra-low volume sprayer;

Figure 2 is a perspective view of the sealing ring;

Figure 3 is a front view of the sealing ring;

Figure 4 is a front view of the portable ultra low volume sprayer;

Figure 5 is a rear view of the portable ultra low volume sprayer;

Figure 6 is a cross-sectional view of the rear view of the portable ultra-low volume sprayer in the B-B direction;

Figure 7 is a cross-sectional view of the rear view of the portable ultra-low volume sprayer in the C-C direction;

Figure 8 is a partially enlarged plan view showing a rear view of the portable ultra-low-volume sprayer in a C-C direction;

Figure 9 is a rear view of the portable ultra-low volume sprayer;

Figure 10 is a cross-sectional view of the rear view of the portable ultra-low volume sprayer in the D-D direction;

Figure 11 is a partially enlarged plan view, partly in section, of the rear view of the portable ultra-low volume sprayer in the D-D direction.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

A portable ultra-low-volume sprayer, as shown in FIG. 1, comprises a medicine box 1, a motor 2, a sealing ring 3, and a protective shell 4; the medicine box 1 is filled with a spraying liquid, and the medicine box 1 is filled An invagination area is provided, the invagination area is substantially located in a geometric central area of the medicine box 1, and the motor 2 is disposed in the invagination area, and the motor 2 is disposed between the indented area of the medicine box 1 The rubber sealing ring 3 shown in FIG. 2 and FIG. 3 forms a closed pressure chamber 9 between the motor 2 and the indented region of the medicine box 1, and the pressure chamber 9 is as shown in FIG. The pressure chamber 9 described provides the medicine box 1 with a pressure to spray the spray liquid. Since the medicine box has the space of the pressure chamber, the overall shape of the medicine box is simple, and the manufacturing process only needs to integrally form the medicine box, thereby greatly reducing the manufacturing process.

As shown in FIG. 2 and FIG. 3, the sealing ring has an inner side and an outer side, or an inner ring and an outer ring, and the inner side of the sealing ring 3 has a protruding edge 32 formed by two inwardly extending protrusions. The outer side of the sealing ring 3 is further provided with a plurality of bosses 31, and the bosses 31 are evenly distributed on the outer side of the sealing ring. In the embodiment of the invention, the number of the bosses 31 is not less than four; The connection between the sealing ring 3 and the medicine box 1 is stable. As shown in FIG. 7 and FIG. 8 , the sealing ring is further provided with a plurality of screw holes 35, and the screw holes 35 are provided with expansion screws, thereby setting The seal ring 3 between the motor 2 and the recess of the medicine box 1 is more tightly fixed, or both.

As shown in FIG. 2, the outer side of the sealing ring 3 is further provided with a half cylindrical protrusion 34. An inner side of the recessed portion of the medicine box 1 is provided with an arcuate groove corresponding to the semi-cylindrical protrusion for positioning the sealing ring 3 and the medicine box 1 to facilitate accurate sealing of the medicine box and the sealing box. The rings are connected. As shown in FIG. 3, a position of the sealing ring 3 adjacent to the semi-cylindrical protrusion 34 is further provided with a through hole 36 as a pipeline passage, and the through hole 36 is provided for ensuring a sealing effect. The pore size is comparable to the diameter of the line being passed. A hollow groove 33 is further disposed between the plurality of bosses on the outer side of the seal ring 3.

As shown in FIG. 6 , FIG. 7 and FIG. 8 , the grooves formed by the two protruding edges 32 on the inner side of the sealing ring 3 cooperate with the bosses 21 on the outer side of the motor 2 to make the sealing ring 3 and the motor 2 . Firmly fixed together. As shown in FIG. 2, FIG. 6, FIG. 7, and FIG. 8, the inside of the recessed portion of the medicine box 1 is provided with a groove 11 corresponding to the boss 31 on the outer side of the seal ring 3, and the boss on the outer side of the seal ring 31 cooperates with the groove 11 on the medicine box, so that the sealing ring 3 is firmly fixed to the medicine box 1, so that the motor 2 is firmly fixed on the medicine box 1, and the motor 2 and the medicine box 1 are ensured. A sealed space is formed between them.

When assembling, the sealing ring 3 is first nested on the boss 21 of the motor 2, and then the line that the motor 2 needs to pass to the outside of the medicine box 1 is passed through the through hole 36 in the sealing ring 3, and then the sealing ring 3 is passed. The upper semi-cylindrical projection 34 is aligned with the corresponding arcuate recess of the recess of the medicine box 1 and the motor 2 with the sealing ring 3 is fitted into the recess of the medicine box 1 until the boss 31 on the sealing ring 3 is completely Embedding into the recess 11 on the recess of the medicine box 1, and then inserting an expansion screw into the screw hole 35 on the sealing ring 3, the motor 2 is successfully mounted to the medicine box 1, or in the A sealing ring (not shown) is disposed outside the sealing ring 3, and the fixing ring is stuck outside the sealing ring 3 and is caught between the medicine box 1 and the motor 2.

As shown in FIGS. 5 and 9, the medicine box 1 and the protective case 4 are covered in the vertical direction.

As shown in FIG. 10 and FIG. 11 , a protruding portion 100 is disposed on a connecting surface of the medicine box 1 and the protective shell 4 , and a guiding surface 101 is disposed below the protruding portion 100 , and the guiding surface is The angle formed by the connecting surface of the medicine box 1 is less than 90 degrees, so that the guiding surface 101 forms a slope which is inclined from the top to the bottom. In the embodiment of the invention, the guiding surface is 101 is a part of the protruding portion 100. In fact, when the guiding surface is sufficiently strong or abutting against the other protruding portion, the guiding surface may be a separate inclined surface.

As shown in FIG. 11, the protective casing 4 is provided with a leg assembly, and the leg assembly is provided with a guiding surface 200, and the guiding surface 200 is parallel to the guiding surface 101 and located at the Below the guiding surface 101; when the medicine box 1 and the protective shell 4 are covered in the vertical direction, the protruding portion 100 is fastened to the guiding surface 200, so that the guiding surface 101 and the guiding surface Two 200 close contacts.

As shown in Fig. 11, the leg assembly is further provided with a leg 300, and the leg 300 is disposed under the guiding surface 200 for contacting the ground to stably stand the sprayer on the ground. The leg 300 is a U-shaped structure, and the U-shaped opening is outward, which can provide stable support and save materials. The legs are symmetrically disposed on both sides of the bottom of the protective casing 4; the corresponding protrusions are also symmetrically disposed on both sides of the joint surface of the medicine box 1 and the protective shell 4.

In order to simplify the assembly process, the leg 300, the guiding surface 200, and the protective case 4 are integrally formed plastic parts.

In use, as long as the protective case 4 is placed on the medicine box 1, the guiding surface 200 is placed close to the guiding surface 101, and then the other parts are screwed, the sprayer shown In the state of use, the medicine box 1 and the protective shell 4 are automatically fastened under the action of gravity.

The guiding surface on the downwardly extending inclined portion of the medicine box 1 cooperates with the upwardly inclined guiding surface of the protective casing 4, so that the sprayer forms a natural compression protective shell by its own gravity during normal use. The effect is that the medicine box 1 and the protective case 4 are not loosened even if the use time is long.

The protective casing 4 not only protects the motor from being exposed, but also provides support for the back when it is carried on the back, and maintains a more comfortable carrying feeling.

In order to facilitate lifting, as shown in FIG. 4 and FIG. 5, a handle 8 is disposed above the medicine box 1, and a liquid filling port 5 is disposed above the medicine box, and the liquid filling port 5 can be A liquid to be sprayed, such as a pesticide, a disinfectant, or the like, is added to the medicine box 1.

Further, as shown in Fig. 1, the top of the medicine box is provided with a sprinkler head 7 in front of the pressure chamber, and the sprinkler head 7 ejects the spray liquid in the medicine box outward. The sprinkler head 7 can also be replaced with a sprinkler head with a hose when needed. The medicine box is provided with a flow control valve 6 above the pressure chamber area, and the flow control valve 6 is used for adjusting the outward spraying amount of the spraying liquid per unit time in the medicine box or the size of the liquid particles discharged.

The invention designs the medicine box which is separated from the pressure chamber and the pressure chamber in the prior art, and simultaneously satisfies the function of the pressure chamber, thereby eliminating the prior art that the motor is sealed and fixed with the pressure box, and the motor is hidden. The product makes the product more safe and reliable, at the same time more beautiful and simple, and greatly reduces the manufacturing process, so that the overall cost of the sprayer is greatly reduced.

The description of the invention with respect to the direction is based on the fact that the sprayer is in a normal state of standing upright, the direction close to the ground is downward, the direction away from the ground is upward, and the direction perpendicular to the ground is vertical.

Claims

A portable ultra-low-volume sprayer comprising a medicine box, wherein the medicine tank is filled with a spray liquid, characterized in that: the medicine box is provided with an invagination area, and the inset area is provided with a motor A closed pressure chamber is formed between the motor and the indentation region, and the pressure chamber provides pressure for the medicine tank to spray the spray liquid.
The portable ultra low volume sprayer of claim 1 wherein said recessed area is located substantially in a geometric central region of said medicine box.
The portable ultra-low-volume sprayer according to claim 1, wherein a rubber sealing ring is disposed between the motor and the indented region of the medicine box, and the sealing ring is nested with the inner wall of the recessed area. fixed.
The portable ultra-low-volume sprayer according to claim 3, wherein two edges of the inner side of the sealing ring form a convex edge inward, and the two protruding edges form a groove to cooperate with a boss on the outer side of the motor. fixed.
The portable ultra-low-volume sprayer according to claim 3, wherein a plurality of bosses are disposed outside the seal ring, and the bosses are evenly distributed outside the seal ring; A groove corresponding to the boss is disposed on an inner side of the region, and a boss on the outer side of the seal ring is fixedly coupled with a groove on the medicine box.
The portable ultra-low-volume sprayer according to claim 3, wherein the sealing ring is further provided with a plurality of screw holes, and the screw holes are provided with expansion screws.
The portable ultra-low-volume sprayer according to claim 3, wherein the sealing ring is provided with a fixing ring, the fixing ring is located outside the sealing ring, and is stuck in the medicine box and the motor. between.
A portable ultra low volume sprayer according to claim 5 wherein said said The outer side of the sealing ring is further provided with a half cylindrical protrusion, and the inner side of the recessed area of the medicine box is provided with an arcuate groove corresponding to the semi-cylindrical protrusion.
The portable ultra-low-volume sprayer according to claim 8, wherein a through hole is formed in the seal ring near the semi-cylindrical projection, and the through hole serves as a pipeline passage.
The portable ultra-low volume sprayer according to claim 5, wherein a hollow groove is provided between the plurality of bosses on the outer side of the seal ring.
The portable ultra-low-volume sprayer according to claim 1, wherein said motor peripheral has a protective casing, said protective casing being fixed to a medicine box, said protective casing for protecting said motor Not exposed.
The portable ultra-low-volume sprayer according to claim 11, wherein the medicine box and the protective shell are covered in a vertical direction, and the medicine box and the protective shell connecting surface are provided with a protruding portion, A guiding surface is disposed under the protruding portion, and the guiding surface forms an angle of less than 90 degrees with the connecting surface of the medicine box and the protective shell; the protective shell is provided with a leg assembly, and the supporting member The leg assembly is provided with a guiding surface 2, the guiding surface 2 is parallel to the guiding surface, and is located below the guiding surface, and the protruding portion is covered when the medicine box and the protective shell are covered in the vertical direction. The portion is fastened to the guiding surface 2 such that the guiding surface 1 is in close contact with the guiding surface 2.
The portable ultra-low-volume sprayer according to claim 11, wherein said leg assembly is further provided with a leg, and said leg is disposed under the guiding surface 2 for contacting the ground to make said The sprayer is stable on the ground.
A portable ultra-low volume sprayer according to claim 13 wherein: The legs are a U-shaped cross section and the U-shaped opening is outward.
The portable ultra-low-volume sprayer according to claim 14, wherein the U-shaped sheet-like structure and the guiding surface are integrally formed of plastic members.
The portable ultra-low-volume sprayer according to claim 12, wherein said leg assembly and said protective casing are integrally formed of plastic members.
The portable ultra-low-volume sprayer according to claim 12, wherein the leg members are symmetrically disposed on both sides of the bottom of the protective casing; and the corresponding protrusions are symmetrically disposed in the medicine box and protected. The sides of the shell joint face.
The portable ultra-low volume sprayer according to claim 1, wherein the liquid supply port of the medicine box is disposed above the medicine box.
The portable ultra-low-volume sprayer according to claim 1, wherein a handle is disposed above the medicine box, and the handle facilitates pulling up the medicine box.
The portable ultra-low-volume sprayer according to claim 1, wherein said medicine box is provided with a spray head facing the front of the pressure chamber, said spray head spraying the spray liquid in the medicine box outward Out.
The portable ultra-low-volume sprayer according to claim 1, wherein said medicine box is provided with a flow control valve above the pressure chamber region, and said flow control valve is used for adjusting the spray liquid in the medicine box. The amount of outward spray per unit time.