Multifunctional spray gun

Abstract

The present application relates to the field of liquid sprayers, and in particular to a multifunctional spray gun. A handle convenient for being held with four fingers of one hand and a pressing plate used for being pressed down by the thumb of said hand are designed on the spray gun, and the pressing plate and a lock cover mechanism are hinged, allowing for labor-saving and convenient single-hand operation. In addition, a detachably connected mist spray nozzle is designed on a spray head of the spray gun so as to meet the requirement of spraying mist, and a foam spray nozzle detachably connected to the mist spray nozzle is further designed. The foam spray nozzle can foam the mist-like liquid sprayed from the mist spray head so as to meet the requirement of spraying foam. When the foam function is not needed, the foam spray nozzle can be removed. Further, when the mist spray function is not needed, the mist spray nozzle can be removed, so as to only spray liquid. The design can meet different liquid spray requirements of different scenarios, and the spray gun is multifunctional and convenient to operate.

Description

A multifunctional spray gun Technical Field

[0001] The utility model relates to the field of liquid sprayers, in particular to a multifunctional spray gun. Background Art

[0002] Currently, plastic spray guns on the market are widely used for disinfection in public and home environments, kitchen and toilet cleaning sprays, gardening and other purposes. They generally adopt a trigger-driven design. When in use, the index finger squeezes the trigger and the rest of the same hand holds the upper part of the container. Although it can be operated with one hand, it is necessary to hold the container with the thumb and the base of the thumb while pressing the trigger of the plastic spray gun with the index finger and several other fingers to press the liquid. The operation is relatively laborious and is limited by the holding method. The capacity of the container used is generally small, and it is not suitable for larger bottles, and the consumer experience is not good. Plastic spray guns generally only have a single spray function, which cannot meet the needs of many scenarios that require spraying foam, or can only spray foam but cannot meet the spray needs. The existing spray guns have a single applicable scenario.

[0003] Utility Model Content

[0004] In order to overcome the problem that the above-mentioned spray gun is inconvenient to operate with one hand and has a single applicable scene, the utility model provides a multifunctional spray gun. The technical solution adopted by the utility model to solve the technical problem is:

[0005] A multifunctional spray gun, comprising a locking cover mechanism, on which a handle is fixedly connected; a liquid spraying mechanism, comprising an internally connected connecting end and a liquid spraying rod, the connecting end being relatively slidably arranged in the locking cover mechanism, and the liquid spraying rod extending out of the locking cover mechanism; a pressure plate, which is hinged to the liquid spraying mechanism and abuts against the upper part of the connecting end, and the pressure plate and the handle are arranged in the same direction; a pumping mechanism, which comprises a liquid suction chamber coaxially fixed to the locking cover mechanism, a relatively slidable pump body component being arranged in the liquid suction chamber, and the upper end of the pump body component and the connecting end are interference fit The locking cover is detachably mounted on the front end of the liquid spray rod, and a spray core is arranged therein to atomize the sprayed liquid; the bubble mist nozzle is detachably mounted on the front end of the spray head, and a bubble mist cavity is arranged therein, and an air inlet hole connecting the bubble mist cavity and the outside is arranged on the periphery of the bubble mist nozzle to foam the sprayed atomized liquid.

[0006] Furthermore, a bubble mist flap is hingedly connected to the front end of the bubble mist nozzle, and a bubble mist grid is provided on the bubble mist flap to further foam the atomized liquid.

[0007] Furthermore, a buckle strip is provided on the periphery of the bubble mist flip cover, and a protrusion is provided at a corresponding position on the periphery of the bubble mist nozzle to cooperate with the buckle strip for buckle connection.

[0008] Furthermore, a lock cover buckle position is provided at the lower end of the lock cover mechanism, and a pump suction buckle position is provided at the upper end of the liquid suction chamber. The lock cover buckle position and the pump suction buckle position are buckled together to realize a detachable fixed connection between the lock cover mechanism and the liquid suction chamber.

[0009] Furthermore, the pump body component includes a first pump column, which is a tubular structure and the outer wall of its upper end is interference fit with the inner wall of the connecting end, and a first limit piece is fixedly connected to the outer wall of the first pump column; a second pump column, which is a tubular structure and the outer wall of its upper end is interference fit with the inner wall of the first pump column, and a second limit piece is fixedly connected to the outer wall of the second pump column. The bottom end of the second pump column is sealed and abuts against a return spring, and a liquid inlet is opened on the side wall of the second pump column; a piston is arranged in the liquid suction chamber and is sleeved on the outer walls of the first pump column and the second pump column, and the piston is located between the first limit piece and the second limit piece. The first pump column and the second pump column can slide relative to the piston, and the relative sliding stroke is equal to the distance from the first limit piece to the second limit piece. When the piston abuts the second limit piece, liquid cannot enter from the liquid inlet, and the return spring has a tendency to drive the second pump column to move upward relative to the piston and drive the second limit piece to abut against the piston.

[0010] Furthermore, the lower end of the liquid suction chamber is connected to the straw and extends to the bottom of the liquid container. A V-shaped pipe mouth is provided at the lower end of the liquid suction chamber, and a freely movable ball valve is placed in the V-shaped pipe mouth. The diameter of the ball valve is larger than the diameter of the pipe mouth, so that the liquid will not flow back into the pipette after entering the liquid suction chamber from the straw.

[0011] Furthermore, the handle and the pressure plate are arranged in the same direction, a rotating shaft hole is provided on the lock cover mechanism, a convex shaft is provided on the pressure plate, and the pressure plate is hinged to the lock cover mechanism through the convex shaft and the rotating shaft hole.

[0012] Furthermore, the spray gun also includes an external brake clamp, which can be clamped between the pressure plate and the upper platform of the handle to limit the downward pressure of the pressure plate.

[0013] The beneficial effects of the utility model are:

[0014] The spray gun is designed with a handle that is convenient for one-handed four-finger holding and a pressure plate for one-handed thumb to press down. The handle and the pressure plate are hinged to make one-handed operation more labor-saving and convenient. In addition, the spray gun's nozzle is designed with a detachable spray head to meet the spraying needs. It is also designed with a bubble mist nozzle that is detachably connected to the spray head, which can foam the mist liquid sprayed from the spray head to meet the need of spraying foam. When the foam function is not needed, the bubble mist nozzle can be removed. Furthermore, if the spray function is not needed, the spray head can be removed to only spray liquid. The above design can meet the different liquid spraying needs in different scenarios, with multiple functions and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, wherein:

[0016] Figure 1 is a cross-sectional view of the utility model spray gun;

[0017] Figure 2 is a cross-sectional view of the utility model assembled spray head spray gun;

[0018] Figure 3 is a cross-sectional view of the utility model assembled with a bubble mist nozzle spray gun;

[0019] Figure 4 is a partial enlarged view of area A of the present invention;

[0020] Figure 5 is a partial enlarged view of area B of the present invention;

[0021] Figure 6 is a partial enlarged view of area C of the present invention;

[0022] Figure 7 is a cross-sectional view of the lock cover of the present utility model;

[0023] Figure 8 is a top view of the pressing plate of the present invention;

[0024] Figure 9 is a cross-sectional view of the liquid outlet head of the present invention;

[0025] Figure 10 is a perspective view of the utility model bubble mist nozzle;

[0026] FIG11 is a cross-sectional view of the pumping mechanism of the present invention.

[0027] Figure numbers: 100, lock cover mechanism; 101, handle; 102, shaft hole; 103, lock cover buckle; 200, pressure plate; 201, cam; 300, spray mechanism; 301, connection end; 302, spray rod; 400, bubble mist nozzle; 401, air inlet; 402, bubble mist flap; 403, bubble mist grid; 404, bubble mist chamber; 405, buckle strip; 406, protrusion; 500, pumping mechanism; 501, liquid suction chamber; 502, suction pipe; 503, pumping buckle; 504, first pump column; 5041, first stopper; 505, second pump column; 5051, liquid inlet; 5052, second stopper; 506, piston; 507, return spring; 508, ball valve; 509, V-shaped nozzle; 600, tooth cover; 601, embossed pattern; 700, spray head; 701, spray core; 800, brake clamp. DETAILED DESCRIPTION

[0028] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a multifunctional spray gun of the present invention in conjunction with the accompanying drawings.

[0029] Referring to Figures 1 to 11, the spray gun includes a lock cover mechanism 100, a handle 101 is fixedly connected to the lock cover mechanism 100 for single-handed holding, a liquid spraying mechanism 300 is arranged in the lock cover mechanism 100, and the liquid spraying mechanism 300 includes an internally connected connecting end 301 and a liquid spraying rod 302, the connecting end 301 is arranged in the lock cover mechanism 100 and can slide relatively, and the liquid spraying rod 302 extends out of the lock cover mechanism 100 to spray liquid, and a rotating shaft hole 102 is also provided on the lock cover mechanism 100, and a pressing plate 200 is hinged to the lock cover mechanism 100 through the convex shaft 201 and the rotating shaft hole 102. The pressing plate 200 and the handle 101 are arranged in the same direction so that one hand can hold and press the action, and the lower part of the pressing plate 200 abuts against the upper part of the connecting end 301 so that the pressing The pressure plate 200 can drive the connecting end 301 to slide; the spray gun also includes a pumping mechanism 500, which includes a liquid suction chamber 501, a pumping buckle 503 is provided at the upper end of the liquid suction chamber 501, and a locking cover buckle 103 is provided at the lower end of the locking cover mechanism 100, the locking cover buckle 103 and the pumping buckle 503 are buckled and connected to realize a detachable fixed connection between the locking cover mechanism 100 and the liquid suction chamber 501; a relatively slidable pump body component is provided in the liquid suction chamber 501, the upper end of the pump body component and the connecting end 301 are interference fit, and the lower end thereof abuts against the return spring 507, and when the pressure plate 200 is pressed, it will drive the connecting end 301 to slide downward, and the connecting end 301 further drives the pump body component to slide downward relative to the liquid suction chamber 501 to pump liquid. When the pressure is removed After that, the return spring 507 pushes the above components back to their original positions, and then the above operations are repeated to complete the action of pumping and spraying the liquid; a relatively rotatable tooth cover 600 is provided between the lock cover mechanism 100 and the liquid suction chamber 501, and a convex groove 601 is provided on the inner side of the tooth cover 600 so that the tooth cover 600 and the liquid container can be threaded or snap-fitted; the front end of the spray rod 302 is sleeved with a detachable spray head 700, and a spray core 701 is provided in the spray head 700 to atomize the sprayed liquid; the front end of the spray head 700 is sleeved with a detachable bubble mist nozzle 400, and a bubble mist chamber 404 is provided in the bubble mist nozzle 400, and an air inlet 401 connecting the bubble mist chamber 404 and the outside is provided on the periphery of the bubble mist nozzle 400, and liquid is sprayed from the spray head 700 The atomized liquid is initially mixed with the gas entering the bubble mist chamber 404 and the side air inlet 401 under the obstruction of the wall of the bubble mist chamber 404, and plays a foaming role when the liquid contains a certain surfactant, and is sprayed out from the front end of the bubble mist nozzle 400 in the form of foam to meet the application scenario that requires foam; the front end of the bubble mist nozzle 400 is hinged with a bubble mist flap 402, and the bubble mist flap 402 is provided with a bubble mist grid 403. The foam sprayed from the front end of the bubble mist nozzle 400 is further more fully mixed with the air under the obstruction and disturbance of the radial grid of the bubble mist grid 403 to form richer foam, and is ejected through the gaps between the radial grids of the bubble mist grid 403 as relatively concentrated foam to form more foam to meet the application scenario that requires a large amount of foam.

[0030] 6 , a buckle strip 405 is provided around the bubble mist cover 402 , and a protrusion 406 is provided at a corresponding position around the bubble mist nozzle 400 to cooperate with the buckle strip 405 for snap connection, so that the bubble mist cover 402 can be tightly buckled on the front end of the bubble mist nozzle 400 .

[0031] Further referring to Figures 4 and 11, the pump body component includes a first pump column 504, a second pump column 505 and a piston 506. The first pump column 504 is a tubular structure, and the outer wall of its upper end is interference fit with the inner wall of the connecting end 301, and a first limiting member 5041 is fixedly connected to the outer wall of the first pump column 540; the second pump column 505 is also a tubular structure, and the outer wall of its upper end is interference fit with the inner wall of the first pump column 504, and a second limiting member 5052 is fixedly connected to the outer wall of the second pump column 505. The bottom end of the second pump column 505 is sealed and abuts against the return spring 507, and a liquid inlet 5051 is opened on the side wall of the second pump column 505 so that liquid can enter the spray composed of the second pump column 505, the first pump column 504 and the spray mechanism 100. Pipeline; The piston 506 is arranged in the liquid suction chamber 501 and can perform piston movement. At the same time, the piston 506 can be relatively slidably sleeved on the outer periphery of the first pump column 504 and the second pump column 505, and is located between the first limit piece 5041 and the second limit piece 5052. The sliding stroke of the piston 506 relative to the first pump column 504 and the second pump column 505 is equal to the distance between the first limit piece 5041 and the second limit piece 5052. The piston 506 is preferably a Y-shaped rubber ring. When the piston 506 abuts the second limit piece 5052, the liquid cannot enter from the liquid inlet 5051. The reset spring 507 has a tendency to drive the second pump column 505 to move upward relative to the piston 506 and drive the second limit piece 5052 to abut the piston 506.

[0032] Further referring to Figure 5, the lower end of the liquid suction chamber 501 is connected to the straw 502 and extends to the bottom of the liquid container. A V-shaped nozzle 509 is provided at the lower end of the liquid suction chamber 501. A freely movable ball valve 508 is placed in the V-shaped nozzle 509. The diameter of the ball valve 508 is larger than the diameter of the nozzle. When liquid is pumped into the liquid suction chamber 501 due to the internal and external pressure difference, the ball valve 508 moves upward after being impacted by the liquid and makes way for the V-shaped nozzle 509 channel. When the liquid enters the liquid suction chamber 501 from the straw 502, the ball valve 508 falls back to the V-shaped nozzle 509 under the action of gravity and blocks the channel, so that the liquid already in the liquid suction chamber 501 will not flow back to the straw 502 due to gravity.

[0033] With further reference to Figures 1 to 3, the spray gun also includes an external brake clamp 800, which can be clamped between the pressure plate 200 and the handle 101 to limit the downward pressure of the pressure plate 200, thereby preventing liquid from being sprayed out due to accidental touching of the pressure plate 200 during transportation or other situations where it is not needed. After removing the brake clamp 800, the pressure plate 200 can be pressed normally to spray the liquid.

[0034] In summary, remove the brake clamp 800, hold the spray gun with one hand and press the pressure plate 200, the pressure plate rotates relative to the lock cover mechanism 100 and drives the connecting end 301 to slide downward relative to the lock cover mechanism 100, and the connecting end 301 further drives the first pump column 504 and the second pump column 505 to slide downward relative to the piston 506, so that the piston 506 no longer abuts the second limit member 5052, the liquid inlet 5051 channel is opened, and the first pump column 504 and the second pump column 505 continue to abut against each other. The piston 506 slides down until the first limiter 5041 abuts and drives the piston 506 to move downward relative to the liquid suction chamber 501. At this time, the V-shaped nozzle 509 at the lower end of the liquid suction chamber 501 is blocked by the ball valve 508. The gas / liquid in the liquid suction chamber 501 is squeezed by the piston 506 and enters the channels of the first pump column 504 and the second pump column 505 from the liquid inlet 5051 and is sprayed out from the spray mechanism 300. After that, the pressing plate 200 is released and the second pump column 505 is pressed. The return spring 507 drives the first pump column 504, the connecting end 301 and the pressure plate 200 to retreat upward, and the second limit member 5052 abuts against the piston 506 to close the liquid inlet 5051 and drive the piston 506 to move upward. At this time, the pressure in the liquid suction chamber 501 decreases, and the suction pipe 502 sucks the liquid in the liquid container into the liquid suction chamber 501. The ball valve 508 is opened by the upward impact of the liquid, thereby making way for the V-shaped nozzle 509, and the gas / liquid enters the suction chamber. After the pressure in the liquid chamber 501 is balanced, the ball valve 508 falls back to the V-shaped nozzle 509 under the action of gravity and blocks the channel. The above pressing and releasing pressing actions are repeated, so that the liquid in the liquid container continues to be sprayed out from the spray rod 302. If the spray head 700 is connected to the front end of the spray rod 302 at this time, the liquid sprayed from the spray rod 302 is atomized by the spray core 701 and sprayed out in the form of mist droplets. Furthermore, the bubble mist nozzle 400 can be connected to the front end of the spray head 700. The mist droplets are mixed with the gas under the action of the bubble mist nozzle 400 to form foam, and are sprayed out in the form of foam. If the bubble mist flip cover 402 is covered at this time, more foam can be sprayed. The utility model can be operated with one hand, which is convenient and simple. The mode of spraying liquid, spraying atomized droplets or foam can be switched by switching the nozzle components. It can meet the various needs of different scenarios.

[0035] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A multifunctional spray gun, characterized in that: include: A lock cover mechanism (100) having a handle (101) fixedly connected thereto; The liquid spraying mechanism (300) comprises an internally connected connecting end (301) and a liquid spraying rod (302), wherein the connecting end (301) is relatively slidably arranged in the locking cover mechanism (100), and the liquid spraying rod (302) extends out of the locking cover mechanism (100); A pressing plate (200) is hingedly connected to the liquid spraying mechanism (300) and abuts against the top of the connecting end (301), and the pressing plate (200) and the handle (101) are arranged in the same direction; The pumping mechanism (500) comprises a liquid suction chamber (501) coaxially fixedly connected to the lock cover mechanism (100), a relatively slidable pump body component is arranged in the liquid suction chamber (501), the upper end of the pump body component and the connecting end (301) are interference fit, and the lower end thereof abuts against a return spring (507), and the pumping mechanism (500) can complete the reciprocating action of pumping liquid / gas; A tooth cover (600) is rotatably disposed between the lock cover mechanism (100) and the liquid suction chamber (501), and is detachably connected to the liquid container; A spray head (700) is detachably mounted on the front end of the liquid spray rod (302), and a spray core (701) is arranged inside the spray head to atomize the sprayed liquid; The bubble mist nozzle (400) is detachably mounted on the front end of the spray head (700), and a bubble mist chamber (404) is provided therein. An air inlet (401) connecting the bubble mist chamber (404) and the outside is provided on the periphery of the bubble mist nozzle (400) to foam the sprayed atomized liquid.

2. A multifunctional spray gun according to claim 1, characterized in that: A bubble mist flap (402) is hingedly connected to the front end of the bubble mist nozzle (400), and a bubble mist grid (403) is arranged on the bubble mist flap (402) to further foam the atomized liquid.

3. A multifunctional spray gun according to claim 2, characterized in that: A buckle strip (405) is arranged on the periphery of the bubble mist flap (402), and a protrusion (406) is arranged at a corresponding position on the periphery of the bubble mist nozzle (400) to cooperate with the buckle strip (405) for buckle connection.

4. A multifunctional spray gun according to claim 1, characterized in that: The lower end of the locking cover mechanism (100) is provided with a locking cover buckle position (103), and the upper end of the liquid suction chamber (501) is provided with a pump suction buckle position (503). The locking cover buckle position (103) and the pump suction buckle position (503) are buckled and connected to achieve a detachable fixed connection between the locking cover mechanism (100) and the liquid suction chamber (501).

5. A multifunctional spray gun according to claim 4, characterized in that: The pump body component comprises: The first pump column (504) is a tubular structure, and the outer wall of the upper end thereof is interference-fitted with the inner wall of the connecting end (301), and a first limiting member (5041) is fixedly connected to the outer wall of the first pump column (504); The second pump column (505) is a tubular structure, and the outer wall of the upper end thereof is interference-fitted with the inner wall of the first pump column (504). A second stopper (5052) is fixedly connected to the outer wall of the second pump column (505). The bottom end of the second pump column (505) is sealed and abuts against the return spring (507). A liquid inlet (5051) is opened on the side wall of the second pump column (505); The piston (506) is arranged in the liquid suction chamber (501) and is sleeved on the outer wall of the first pump column (504) and the second pump column (505). The piston (506) is located between the first limiter (5041) and the second limiter (5052). The first pump column (504) and the second pump column (505) can slide relative to the piston (506), and the maximum relative sliding stroke is equal to the distance from the first limiter (5041) to the second limiter (5052). The piston (506) abuts against the second limiter (5041). When the limiting member (5052) is in place, liquid cannot enter from the liquid inlet (5051), and the return spring (507) has a tendency to drive the second pump column (505) to move upward relative to the piston (506), and drive the second limiting member (5052) to abut against the piston (506).

6. A multifunctional spray gun according to claim 5, characterized in that: The lower end of the liquid suction chamber (501) is connected to the suction tube (502) and extends to the bottom of the liquid container. The lower end of the liquid suction chamber (501) is provided with a V-shaped pipe opening (509), and a freely movable ball valve (508) is placed in the V-shaped pipe opening (509). The diameter of the ball valve (508) is larger than the diameter of the lower end of the V-shaped pipe opening (509).

7. A multifunctional spray gun according to claim 1, characterized in that: The handle (101) and the pressing plate (200) are arranged in the same direction, the lock cover mechanism (100) is provided with a rotating shaft hole (102), the pressing plate (200) is provided with a convex shaft (201), and the pressing plate (200) is hingedly connected to the lock cover mechanism (100) through the convex shaft (201) and the rotating shaft hole (102).

8. A multifunctional spray gun according to claim 7, characterized in that: The spray gun further comprises an external brake clamp (800), which can be clamped between the pressing plate (200) and the upper platform of the handle (101) to limit the pressing plate (200) from being pressed downward.

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