Diaphragm pump sprayer

Abstract

The present invention is applicable to the fields of spraying and chemical agent instruments, and provides a diaphragm pump sprayer comprising a housing in which a battery, a motor and a hose are arranged, with one end of the hose being connected with a sinking water inlet ball and the other end being connected with a spray head, characterized in that: a diaphragm pump for water pumping is also arranged within the housing, one end of the diaphragm pump is connected with the hose and the other end is connected with the spray head, and the diaphragm pump is driven for water pumping by the battery and the motor. The diaphragm pump sprayer provided in the present invention realizes the purpose of pumping and spraying liquid by the diaphragm pump sprayer. The diaphragm pump, which has high chemical corrosion resistance and high working efficiency, is employed as a substitute for existing gear pumps, piston pumps and peristaltic pumps in the present invention.

Claims

1. A diaphragm pump sprayer, comprising: a housing in which a battery, a motor and a hose are arranged, with one end of the hose being connected with a sinking water inlet ball and the other end being connected with a spray head, the sinking water inlet ball being located outside of the housing, wherein a diaphragm pump for water pumping is also arranged within the housing, one end of the diaphragm pump is connected with the hose and the other end is connected with the spray head, the diaphragm pump comprises a pump body and a pump cover mated with the pump body, a first chamber and a second chamber isolated from each other are arranged within the pump body, the first chamber and the second chamber are configured so that when the first chamber is squeezed to spray water into the spray head, water is pumped from the hose into the second chamber, and when the second chamber is squeezed to spray water into the spray head, water is pumped from the hose into the first chamber.

2. The diaphragm pump sprayer of claim 1, wherein the first chamber and the second chamber are sealed by an elastic piece, the elastic piece is injection-molded with a first push plate and a second push plate, the first push plate and the second push plate are respectively driven by a first crank arranged on a first cam and a second crank arranged on a second cam, and the first chamber and the second chamber are sandwiched between the elastic piece and the spray head.

3. The diaphragm pump sprayer of claim 2, wherein the first chamber comprises a first water inlet and a first water outlet, the first water inlet is connected with the hose, the first water outlet is connected with the spray head, a first one-way water inlet valve is arranged at the first water inlet, and a first one-way water outlet valve is arranged at the first water outlet.

4. The diaphragm pump sprayer of claim 2, wherein the second chamber comprises a second water inlet and a second water outlet, the second water inlet is connected with the hose, the second water outlet is connected with the spray head, a second one-way water inlet valve is arranged at the second water inlet, and a second one-way water outlet valve is arranged at the second water outlet.

5. The diaphragm pump sprayer of claim 2, wherein the first cam and the second cam are driven to rotate by the motor though a gear set.

6. The diaphragm pump sprayer of claim 2, wherein the elastic piece is an elastic piece made of a corrosion-resistant and anti-aging silicon material or rubber material.

7. The diaphragm pump sprayer of claim 1, wherein the hose is made of a silicon material.

8. The diaphragm pump sprayer of claim 1, wherein the spray head is rotatably arranged on the housing.

9. The diaphragm pump sprayer of claim 1, wherein the water inlet ball comprises a plastic casing and a ceramic ball arranged within the plastic casing, one end of the plastic casing is provided with a water inlet and the other end is connected with the hose.

10. The diaphragm pump sprayer of claim 1, further comprising: a circuit protection switch for switching on or off a circuit, the circuit protection switch being electrically connected with the motor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is an exploded view of the diaphragm pump sprayer provided by the embodiment of the present invention;

(2) FIG. 2 is an exploded view of the diaphragm pump provided by the embodiment of the present invention;

(3) FIG. 3 is a schematic view for rotation of the first cam and the second cam driven by the motor through the gear set provided by the embodiment of the present invention;

(4) FIG. 4 is an exploded view of the first cam and the second cam as well as the first push plate and the second push plate provided by the embodiment of the present invention.

(5) FIG. 5 is an exploded view of the water inlet ball provided by the embodiment of the present invention.

(6) FIG. 6 is a schematic view of the chambers of the diaphragm pump connecting with the hose and the spray header provided by the embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

(7) In order to make the objectives, technical solution and advantages of the present invention become more apparent, the present invention will be described in further details hereafter accompanying the drawings and embodiments. It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

(8) As shown in FIG. 1, the diaphragm pump sprayer provided by the embodiment of the present invention comprises a housing 1 in which a battery 2, a motor 3 and a hose 4 are arranged, with one end of the hose 4 being connected with a sinking water inlet ball 5, the other end being connected with a spray head 6. A diaphragm pump 7 for water pumping is also arranged within the housing, one end of the diaphragm pump 7 being connected with the hose 4, the other end being connected with the spray head 6, the diaphragm pump 7 being driven for water pumping by the battery 2 and the motor 3. When the diaphragm pump sprayer is used, a switch 8 which is electrically connected with the battery 2 is pressed with a hand while a switch 10 is turned on, the motor 3 is powered by the battery 2, the motor 3 starts to rotate after being electrified, the motor 3 drives the diaphragm pump 7 to pump water, liquid enters into the hose 4 through the water inlet ball 5 and then enters the diaphragm pump 7 through the hose 4, and finally is sprayed out from the spray head 6, thus the diaphragm pump sprayer provided in the present invention realizes the purpose of pumping and spraying the liquid by the diaphragm pump sprayer. The diaphragm pump 7, which has high chemical corrosion resistance and high working efficiency, is employed as a substitute for existing gear pumps, piston pumps and peristaltic pumps in the present invention.

(9) Various components of the present invention will be described in details hereinafter.

(10) As shown in FIG. 1, the housing 1 is composed of an upper cover 11 of and a lower cover 12, the battery 2, the motor 3, the hose 4, the spray head 6, the diaphragm pump 7, and the switch 8 are all located in the lower cover 12, then the lower cover 12 and the upper cover 11 are mated, such that assembled to form a diaphragm pump sprayer.

(11) As shown in FIG. 2, in particular, the diaphragm pump 7 comprises a pump body 71 and a pump cover 72 mated with the pump body 71, a first chamber 73 and a second chamber 74 isolated from each other are arranged within the pump body 71, the first chamber 73 and the second chamber 74 are sealed by an elastic piece 75, and the elastic piece 75 is disposed opposite to a first push plate 76 and a second push plate 77, and the first push plate 76 and the second push plate 77 are respectively driven by a first crank 781 arranged on a first cam 78 and a second crank 791 arranged on a second cam 79.

(12) As shown in FIGS. 1, 2, and 6, more particularly, the first chamber 73 comprises a first water inlet 731 and a first water outlet 732, the first water inlet 731 is connected with the hose 4, the first water outlet 732 is connected with the spray head 6, a first one-way water inlet valve 733 is arranged at the first water inlet 731, a first one-way water outlet valve 734 being arranged at the first water outlet 732. The second chamber 74 comprises a second water inlet 741 and a second water outlet 742, the second water inlet 741 is connected with the hose 4, the second water outlet 742 is connected with the spray head 6, a second one-way water inlet valve 743 is arranged at the second water inlet 741, a second one-way water outlet valve 744 is arranged at the second water outlet 742.

(13) As shown in FIG. 3, more specifically, the first cam 78 and the second cam 79 are driven to rotate through a gear set 9 by the motor 3, the specific connection of the gear set 9 being as follows: a rotation shaft of the motor 3 is fixedly provided with a pinion 91, the pinion 91 driving a gearwheel 92 engaged therewith to rotate, and another pinion 93 is coaxially mounted with the gearwheel 92, the pinion 93 driving another gearwheel 94 coaxially mounted with the first cam 78 to rotate, since the first cam 78 and the second cam 79 are connected together, so that the first cam 78 and the second cam 79 also rotate along with the gearwheel 94. The invention achieves rotation driving of the motor 3 on the first cam 78 and the second cam 79 by the gear set 9, the torque transmission is smooth, and the rotational speeds of the first cam 78 and the second cam 79 are also easy to control.

(14) Preferably, the elastic piece 75 is made of a corrosion-resistant silicon material or rubber material, of course, also can be made of other corrosion-resistant materials, thus ensuring that the elastic piece 75 is not corrosive when the diaphragm pump 7 extracts corrosive liquid.

(15) The specific pumping principle of the diaphragm pump 7 of the present invention is as follows:

(16) (1) During the process of the motor 3 driving the first cam 78 and the second cam 79 through the gear set 9, when the first crank 781 drives the first push plate 76 to squeeze the elastic piece 75, the elastic piece 75 squeezes the first chamber 73, and the liquid in the first chamber 73 is discharged through the first water outlet and sprayed out from the spray head 6; meanwhile, the second crank 791 drives the second push plate 77 and the elastic piece 75 to leave the chamber 74, the elastic piece 75 recovers gradually from the original squeezed state until being pulled outwards by the second push plate 77, the volume of the second chamber 74 increases suddenly, the second chamber 74 forms a vacuum chamber, the external liquid successively passes through the water inlet ball 5, the hose 4 and the second water inlet to enter the second chamber 74 under the action of atmospheric pressure, thereby achieving the water pumping purpose of the diaphragm pump 7.
(2) Then, when the second crank 791 drives the second push plate 77 to squeeze the elastic piece 75, the elastic piece 75 squeezes the second chamber 74, and the liquid in the second chamber 74 is discharged through the second water outlet and sprayed out from the spray head 6; meanwhile, the first crank 781 drives the first push plate 76 and the elastic piece 75 to leave the chamber 73, the elastic piece 75 recovers gradually from the original squeezed state until being pulled outwards by the first push plate 76, the volume of the first chamber 73 increases suddenly, the first chamber 73 forms a vacuum chamber, the external liquid successively passes through the water inlet ball 5, the hose 4 and the first water inlet to enter the first chamber 73 under the action of atmospheric pressure, thereby achieving the water pumping purpose of the diaphragm pump 7.
(3) In general, during the process of the motor 3 driving the first cam 78 and the second cam 79 to rotate through the gear set 9, the first cam 78 and the second cam 79 make a relative motion, when the first cam drives the first crank 781 to drive the first push plate 76 to squeeze the elastic piece 75, while the first chamber 73 is squeezed to spray water, the second cam drives the second crank 791 to drive the second push plate 77 and the elastic piece 75 to leave the second chamber 74, resulting in the formation of the vacuum chamber to realize the water pumping effect; and consequently, the diaphragm pump achieves a two-way function, namely, both a water-pumping function and a water-spray function are achieved in each working stroke, thereby greatly improving the work efficiency. The novel design of the two-way diaphragm pump represents how the invention effectively provides the work efficiency of the sprayer, thus being superior to other existing pumps.

(17) As the diaphragm pump sprayer of the present invention is mainly used for extracting and spraying chemical agents and these chemical agents are usually corrosive, in order to avoid the phenomenon that the hose 4 is bonded due to the corrosion of the chemical agents, the hose 4 is made of the silicon material capable of resisting chemical corrosion.

(18) As shown in FIG. 1, the spray head 6 is rotatably arranged on the housing 1, so that the chemical agents are sprayed out in the form of mist or water column, and the sprayed chemical agents are large in cover area and good in spraying effect.

(19) As shown in FIGS. 1 and 4, the water inlet ball 5 comprises a plastic casing 51 and a ceramic ball 52 arranged within the plastic casing 51, one end of the plastic casing 51 is provided with a water inlet 53, and the other end is connected with the hose 4. The ceramic ball 52 is arranged within the plastic casing 51, since the ceramic ball 52 has a certain weight, the water inlet ball 5 can be completely soaked in the liquid, thereby ensuring that the diaphragm pump sprayer extracts the liquid normally.

(20) As shown in FIG. 1, further, the diaphragm pump sprayer of the present invention also comprises a circuit protection switch 10, the circuit protection switch 10 is electrically connected with the motor 3, and the circuit protection switch 10 is used for switching on or switching off a circuit, thereby achieving the effect of well controlling the diaphragm pump sprayer and preventing the adverse consequences caused by misoperation.

(21) The foregoing descriptions are only preferable embodiments of the present invention and are not used for limiting the present invention. Various modifications, equivalent substitutions and improvements which are made without departing from the spirit and principles of the present invention shall fall within the protective scope of the present invention.