JPH0574657U - Electric sprayer - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent malfunction of the suction / exhaust liquid drive unit due to dust or leakage of battery, and to simplify the work when manually rotating the gear of the suction / exhaust liquid drive unit. [Configuration] A suction / drainage drive unit and a power supply unit are installed on the lower inner 1. Place the upper inner member 2 on the lower inner member 1 and screw it on. The liquid suction / drainage drive unit is covered by the drive unit lid 27 of the upper inner 2, and is partitioned off from the power source unit by the peripheral wall 12 of the power source unit storage 11 and the like. The power supply is exposed. The large gear 57 of the suction / drainage drive unit is exposed through the window 38. The cover 3 is covered on the upper and lower inners 1 and 2, and the upper inner 2 is concealed to cover the power supply unit. The cover 3 is attached to the upper inner 2. The liquid tank 4 is attached to the cover 3 with a buckle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric sprayer, and more particularly to an electric sprayer provided with a liquid suction / drainage driving unit and a power supply unit above a liquid tank.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, as an electric atomizer having an intake / exhaust liquid drive unit and a power supply unit provided above a liquid tank, one disclosed in Japanese Patent Publication No. 60-4745 is known. This electric sprayer has a flat bottom case on which a suction / drainage drive unit including a pump and a motor and a power supply unit including a battery case are installed. A liquid tank for storing the spray liquid is detachably attached to the bottom of the bottom case, while the upper and lower sides of the box shape are opened so that the suction / drainage drive unit and the power supply unit are covered from above. The case is attached to the bottom case with screws. In addition, a round window for battery replacement is formed on the side surface of the upper case, and the round window is opened and closed by the battery lid.

[0003]

[Problems to be solved by the device]

 However, in such a conventional electric sprayer, the upper case is covered together without partitioning both the suction / exhaust liquid drive section and the power supply section installed on the bottom case. It is supposed to open and close the lid to insert and remove batteries. Therefore, if the battery is replaced in a place where there is a lot of dust, dust will enter the room formed by the bottom case and the upper case, and will not only affect the power supply unit but also the suction / drainage drive unit. There was a problem that the drive part would break down due to the inclusion of dust. In addition, ordinary users often leave the battery in place even when the atomizer is not used, and keep the atomizer in a humid place such as a storage room with the battery for a long time. Then, there was a problem that the liquid leaked from the battery, the liquid flowed to the suction / drainage liquid drive unit, and the drive unit failed. The drive failure was the most serious failure of the electric sprayer, the cost of repair was high, and in some cases it could not be repaired. Also, if the gear is hardened by chemicals etc. and the drive unit does not drive well, it may be possible to repair by adding oil or manually forcibly rotating the gear, but at the time of this repair However, in the conventional electric sprayer, the screwing of the upper case and the bottom case had to be released one by one, which was complicated.

The present invention has been made in view of the above conventional problems, and manually rotates the gear of the suction / exhaust liquid drive unit without causing failure of the suction / exhaust liquid drive unit due to dust or liquid leakage. It is an object of the present invention to provide an electric sprayer that is easy to work in the case of

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention installs an intake / exhaust liquid drive unit and a power supply unit on the upper surface of a flat lower inner member, and covers the intake / exhaust liquid drive unit above the lower inner member as well as the power supply unit. The upper inner part that exposes the upper and lower parts is provided to partition the suction / drainage driving part and the power supply part, and a window where the gear of the suction / drainage driving part is partially exposed is provided in a part of the lid part of the upper / lower inner part. A box-shaped cover that covers the upper inner part and covers the power supply part with an open lower surface is detachably attached above the upper and lower inner parts, while a liquid tank is detachably attached under the upper and lower inner parts. The electric sprayer was constructed.

Further, in the electric sprayer having the above structure, a recess having a through hole at the center is formed on the plate surface of the lower inner, and a liquid suction pipe connected to the pump of the suction / exhaust liquid drive unit is fitted into the recess. Even if a tubular hose that penetrates into the liquid in the liquid tank is connected to the lower part of the lower inner, a tubular connecting part that is continuous with the concave part and projects to the liquid tank side is formed. Good. Further, a plurality of legs may be provided on the lower surface of the lower inner.

[0007]

[Action]

 In the electric sprayer configured as described above, the liquid suction / drainage driving unit on the lower inner is covered by the upper inner and is separated from the power supply unit. Therefore, even if dust enters or the battery leaks, the liquid suction / drain drive unit will not be damaged. The battery can be easily replaced by removing the cover and exposing only the power supply. Furthermore, if the gear is hardened by chemicals etc. and the drive unit fails to drive, the gear of the liquid suction / drain drive unit is partially exposed by the window simply by removing the cover. Alternatively, it can be easily repaired by manually forcing the gear to rotate.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings. The case of the electric sprayer of the present embodiment is made of synthetic resin, and as shown in FIG. 1, a lower inner member 1, an upper inner member 2 screwed to the lower inner member 1, and a detachable mount on the upper inner member 2. And a liquid tank 4 which is detachably attached to the cover 3 below the upper and lower inners 1 and 2.

2, 3, 4 and 5 are respectively a plan view, a front view, a vertical front view and a right side view of the lower inner 1. The lower inner 1 is formed in a substantially elliptical flat plate shape, and a step portion 6 is provided on the upper surface of the peripheral edge portion so that a peripheral wall 5 having a diameter smaller than the outer periphery is formed. Further, a groove 7 is provided on the entire lower surface of the lower surface, and a peripheral wall 8 which is flush with the peripheral wall 5 is formed. Further, four legs 9 are provided on the lower surface of the lower inner 1.

On the other hand, the upper inner surface of the lower inner 1 is provided with a drive unit storage 10 for accommodating an intake / exhaust liquid drive unit (not shown) including a pump, a motor, etc. on one side surface (left side surface side), and a central portion. A power supply unit storage 11 for storing a power supply unit (not shown) composed of a battery or the like is provided on the side. The power supply unit storage 11 is independently formed by a rectangular peripheral wall 12, and the drive unit storage 10 and the power supply unit storage 11 are partitioned by the peripheral wall 12. A recess 14 having a through hole 13 at the center is formed at the center of the drive unit storage 10 in the lower inner 1. A liquid suction pipe (not shown) connected to the pump of the liquid suction / drain drive unit is fitted and inserted into the recess 14. Further, on the lower surface of the lower inner member 1, a tubular connecting portion 15 is formed which is continuous with the concave portion 14 and projects toward the liquid tank 4 side. A liquid suction hose 16 (see FIG. 4) that penetrates into the liquid in the liquid tank 4 is connected to the tubular connection portion 15.

Further, a plurality of ribs 17 and a plurality of screwing bosses 18 for screwing the upper inner 2 are formed on the upper surface of the lower inner 1. Then, a semicircular cutout 19 on which a drainage hose (not shown) connected to the pump is placed is formed in the rib 17 between the two screwing bosses 18 near the drive unit storage 10. Has been. A semicircular cutout 20 is formed in the peripheral wall 5 of the lower inner member 1 near the location where the cutout 19 is provided. This notch 20 forms a circular hole in combination with a semi-circular notch of the upper inner 2 which will be described later, and connects the drain hose connected to the drain pipe of the pump to the upper and lower inner 1. It is for deriving from 2. Further, in the vicinity of the location where the notch 20 is provided, a nozzle support portion 21 that detachably supports a spray nozzle (not shown) is formed on the peripheral portion of the lower inner 1.

2 to 4, reference numeral 22 is a battery receiving plate formed in the power supply housing 11, and 23 is a battery terminal mounting portion provided on the peripheral wall 12 of the power supply housing 11. Further, 24 is a valve mounting portion having a hole penetrating the plate surface of the lower inner 1. By mounting a check valve (not shown), the pressure inside the liquid tank 4 is adjusted, and the liquid is It is intended to prevent the inflow to the side of 1.

FIGS. 6, 7, 8, 9 and 10 show a plan view, a front view, a vertical front view, a left side view and a bottom view of the upper inner 2, respectively. The upper inner 2 has a substantially oval shape corresponding to the lower inner 1 and is formed in a box shape with an open lower surface. The peripheral wall 25 of the upper inner 2 is formed to have a size flush with the peripheral wall 5 of the lower inner 1 when the upper inner 2 is attached to the lower inner 1 by screwing. Further, a semicircular cutout 26 is formed at a position corresponding to the cutout 20 provided in the peripheral wall 5 of the lower inner 1 on the peripheral edge of the lower end of the peripheral wall 25 of the upper inner 2.

One side surface side (left side surface side) of the upper inner 2 has a size of the suction / drainage driving portion so that the suction / drainage driving portion housed in the driving portion storage 10 of the lower inner 1 can be covered. A drive portion lid 27 having a corresponding shape is formed. On the other hand, a rectangular notch 28 having a size corresponding to the power source storage 11 of the lower inner 1 is formed in the central portion of the upper inner 2 so that the power source can be exposed. A peripheral wall 29 is formed on the lower surface (inner surface) of the upper inner 2 so as to frame the cutout 28. The peripheral wall 29, together with the peripheral wall 12 of the power supply unit storage 11 of the lower inner 1, partitions the power supply unit storage 11 from other parts. Further, a plurality of ribs 30 and a plurality of screwing bosses 31 paired with the screwing bosses 18 of the lower inner 1 are formed on the lower surface of the upper inner 2. Further, a plurality of guides 32 are formed on the inner surface of the peripheral wall 25 of the upper inner 2 so as to protrude below the lower end of the peripheral wall 25. The guide 32 is a guide member for attaching the upper inner 2 to the lower inner 1, facilitates the attachment, and also acts as a rib of the peripheral wall 25 of the upper inner 2.

An elastically deformable locking piece 33 is formed downward on the peripheral wall 25 of the upper inner 2 on the side of the drive portion cover 27, and a locking projection is formed on the lower end outer surface of the locking piece 33. 34 are provided. On the other hand, an elastically deformable locking piece 35 is formed on the peripheral wall 25 of the upper inner 2 on the side opposite to the drive section lid 27, and the upper end of the locking piece 35 is A pawl 36 is formed.

Further, a switch hole 37 is provided on the upper surface of the drive unit lid 27 of the upper inner member 2 so that the switch of the suction / drainage drive unit is projected upward, and the peripheral wall 25 on the drive unit lid 27 side is provided. Is provided with a window 38 for exposing the gear of the suction / drainage drive unit.

11 and 12 are a front view and a left side view, respectively, of the suction / exhaust liquid drive section 50. A pump 53 is connected to a motor 51 via a speed reducer 52. A liquid suction pipe 54 is connected to the pump 53 downward, and the lower end portion of the liquid suction pipe 54 is, as described above, the recess 14 provided in the drive unit storage 10 of the lower inner 1. Is inserted and inserted. A drain pipe 55 protruding to the front is connected to the pump 53. A drain hose (not shown) connected to the drain pipe 55 is attached to the peripheral walls 5, 25 of the upper and lower inner parts 1, 2. It is inserted into the notches 20 and 26 provided. Reference numeral 56 denotes a switch provided on the upper part of the suction / drainage liquid drive section 50, and is projected upward from a switch hole 37 provided on the upper surface of the drive section lid 27 of the upper inner 2. Reference numeral 57 is a large gear of the speed reducer 52, which is exposed by a window 38 provided in the peripheral wall 25 on the side of the drive unit lid 27, and can be manually forced to rotate from the outside.

13, 14, 15, 16 and 17 are a plan view, a front view, a vertical sectional front view, a left side view and a right side view of the cover 3, respectively. The cover 3 is formed in a box shape having an open lower surface, and a grip portion 39 is formed on the upper surface thereof. The lower end of the peripheral wall 40 of the cover 3 is provided so as to engage with the stepped portion 6 of the lower inner 1, and the inner surface of the peripheral surface 40 abuts on the outer surfaces of the peripheral walls 5, 25 of the upper and lower inners 1, 2. A notch 41 is formed at the lower end of the peripheral wall 40 of the cover 3 at a position corresponding to the notches 20 and 26 provided in the peripheral walls 5 and 25 of the upper and lower inner parts 1 and 2.

The peripheral wall 40 on one side surface (left side surface side) of the cover 3 is formed with a locking hole 42 into which the locking projection 34 of the locking piece 33 of the upper inner 2 is fitted and locked. Further, on the inner surface of the peripheral wall 40 on the other side surface side (right side surface side) of the cover 3, a locking groove 43 into which the pawl 36 of the locking piece 35 of the upper inner 2 is fitted and locked is formed.

13 and 15, reference numeral 44 denotes a switch hole provided in the grip portion 39, which is a hole for projecting the switch 56 of the liquid suction / drainage drive unit 50 upward. Further, 45 and 46 are buckle engaging grooves provided on both sides of the upper portion of the peripheral wall 40 of the cover 3, and a buckle (not shown) attached to the liquid tank 4 engages with the buckle engaging groove to attach the liquid tank 4 to the cover 3. It is for. Further, 47 is a battery pressing plate provided on the inner surface of the cover 3.

To assemble the electric sprayer having the above-described structure, as shown in FIG. Place Inner 2 and screw it on. At this time, the suction / drainage driving unit 50 is covered by the driving unit lid 27 of the upper inner member 2 and is separated from the power source unit by the peripheral wall 12 of the power source unit storage 11 or the like. On the other hand, the power supply unit is in an exposed state. Next, the cover 3 is covered on the upper and lower inners 1 and 2, and the upper inner 2 is concealed to cover the power supply unit. In the cover 3, after fitting and locking the pawl 36 of the locking piece 35 of the upper inner 2 in the locking groove 43, the locking protrusion 34 of the locking piece 33 of the upper inner 2 is fitted in the locking hole 42. Lock it and attach it to the upper inner 2. Then, the liquid tank 4 is attached to the cover 3 with a buckle.

To replace the battery, the locking projection 34 is pushed with a finger to elastically deform the locking piece 33, the engagement with the locking hole 42 of the cover 3 is released, and the grip 3 holds the cover 3 upward. It can be easily opened by removing the cover 3 to expose only the power supply section. Further, since the large gear 57 of the suction / exhaust liquid drive section 50 is partially exposed by the window 38 only by removing the cover 3, the large gear 57 may be manually forced to rotate through the window 38. You can

According to the electric sprayer of the present embodiment, since the liquid suction / drainage driving unit 50 on the lower inner 1 is covered by the upper inner 2 and is partitioned from the battery unit, dust may enter, Even if the battery leaks, the suction / drainage driving unit 50 does not break down. In addition, if the gear is hardened by chemicals or the like and the suction / exhaust liquid drive section 50 becomes defective, the large gear 57 of the suction / exhaust liquid drive section 50 is partially exposed by the window 38 simply by removing the cover 3. It is possible to easily repair by inserting oil through the window 38 or manually forcibly rotating the large gear 57. Further, since the recess 14 and the tubular connecting portion 15 are provided in the lower inner 1, the work of connecting the suction / drain pipe of the pump 53 of the suction / drainage driving unit 50 becomes easy. Further, since the leg 9 is provided on the lower inner 1, there is no problem even if the lower inner 1 is placed on the ground or the like when injecting the spray liquid.

[0024]

[Effect of the device]

 As described above, according to the electric sprayer of the present invention, the liquid suction / drainage driving unit on the lower inner is covered by the upper inner and is separated from the battery unit. Therefore, even if dust gets in or the battery leaks, the suction / drain drive unit will not fail. Also, the battery can be easily replaced by removing the cover and exposing only the power supply section. Furthermore, if the gear simply hardens due to chemicals etc. and the suction / drainage drive unit becomes defective, the gear of the suction / drainage drive unit is partially exposed by the window simply by removing the cover. It can be easily repaired by oiling the gear or manually forcing the gear to rotate.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of an electric sprayer of the present invention.

FIG. 2 is a plan view showing a lower inner part of the example.

FIG. 3 is a front view showing a lower inner of the embodiment.

FIG. 4 is a vertical cross-sectional front view showing a lower inner of the embodiment.

FIG. 5 is a right side view showing the lower inner of the embodiment.

FIG. 6 is a plan view showing an upper inner of the embodiment.

FIG. 7 is a front view showing the upper inner of the embodiment.

FIG. 8 is a vertical sectional front view showing the upper inner member of the embodiment.

FIG. 9 is a left side view showing the upper inner of the same embodiment.

FIG. 10 is a bottom view showing the upper inner member of the embodiment.

FIG. 11 is a front view showing an intake / exhaust liquid drive unit of the embodiment.

FIG. 12 is a left side view showing an intake / exhaust liquid drive part of the embodiment.

FIG. 13 is a plan view showing a cover of the same embodiment.

FIG. 14 is a front view showing the cover of the embodiment.

FIG. 15 is a vertical cross-sectional front view showing the cover of the embodiment.

FIG. 16 is a left side view showing the cover of the embodiment.

FIG. 17 is a right side view showing the cover of the embodiment.

[Explanation of symbols]

 1 Lower Inner 2 Upper Inner 3 Cover 4 Liquid Tank 9 Leg 10 Drive Section Storage Cabinet 11 Power Supply Section Storage Cabinet 13 Through Hole 14 Recessed Section 15 Tubular Connection Section 16 Liquid Suction Hose 27 Drive Section Lid 28 Cutout 38 Window 50 Suction / Drainage Drive Section 57 large gear

Claims (3)

[Scope of utility model registration request] 1. A suction / drainage driving section and a power source section are installed on the upper surface of a flat lower inner member, and an upper inner section is provided above the lower inner section to cover the suction / drainage driving section and expose the power source section. To separate the suction / drainage drive unit from the power supply unit, and form a window in which the gear of the suction / drainage drive unit is partially exposed in a part of the covered portion of the suction / drainage drive unit in the upper inner, and above the upper and lower inner parts. An electric sprayer characterized in that a box-shaped cover that covers the power supply part and covers the upper inner part and has an open lower surface is detachably attached, while a liquid tank is detachably attached below the upper and lower inner portions. 2. A concave portion having a through hole at the center is formed on the plate surface of the lower inner, and a liquid absorbing pipe connected to a pump of the liquid sucking / driving unit is fitted and inserted into the concave portion, and 2. The electric motor according to claim 1, wherein a tubular connecting portion is formed continuously in the recess so as to project toward the liquid tank, and a liquid suction hose that penetrates into the liquid in the liquid tank is connected to the tubular connecting portion. Sprayer. 3. The electric sprayer according to claim 1, wherein a plurality of legs are provided on a lower surface of the lower inner.