Spray head assembly of sprayer

Abstract

The utility model discloses a sprayer nozzle assembly which comprises a shell, an upper cover and a connecting cover, the upper cover is located above the shell, the connecting cover is connected below the shell in a sleeved mode, a spraying cavity is formed in the shell, the lower portion of the spraying cavity is connected to the connecting cover in a sleeved mode, a spraying head is arranged on the side edge of the shell, and an air storage tank is arranged below the connecting cover. A first spring and a pressurizing piston with one end abutting against the first spring are arranged in the air storage tank, the pressure spraying cavity comprises a water inlet bin, a pressurizing chamber and an air storage pipeline, a second spring is arranged in the water inlet bin, a main pressurizing assembly is arranged on the second spring, the upper end of the water inlet bin communicates with the pressurizing chamber and the air storage pipeline, and the pressurizing chamber is located on the right side of the air storage pipeline. The other end of the gas storage pipeline is communicated with the gas storage tank, the other end of the pressurizing chamber is communicated with the spraying head, a one-way pressurizing valve body for guaranteeing that gas is sprayed out of the spraying head in a one-way mode is arranged in the pressurizing chamber, and a trigger is arranged on the side edge of the shell. The structure is convenient to operate, and continuous spraying is achieved.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of spray heads, and particularly relates to a spray head assembly of a sprayer. Background Art

[0002] Sprayer is the abbreviation of spray equipment. Sprayer is a device that uses air suction to turn medicine or other liquids into mist and sprays them evenly onto other objects. It is composed of a compressed air device and a nozzle. However, it is difficult for small sprayers to spray continuously. To spray continuously, the cavity needs to be inflated continuously. In conventional technology, a compressor is used for filling. However, when the compressor is inflated, it needs to be pressed up and down, which makes it difficult to maintain stability and cannot achieve stable spraying.

[0003] Therefore, the patent number is 202121247514.9, and the patent name is a new type of spray nozzle structure, which includes a nozzle body, a spray head is provided on one side of the nozzle body, and a silicone ball head is provided on the other side. A cavity is formed inside the nozzle body, and the cavity is divided into an inflation chamber and a spray chamber. A one-way air inlet valve is provided in the inflation chamber, and the one-way air inlet valve is connected to the silicone ball head, and an exhaust hole is provided at the lower end of the inflation chamber, the spray head is connected to the spray chamber, and a guide pipe is connected to the lower end of the spray chamber. A control switch is provided on one side of the nozzle body, which is used to block the connection between the spray head and the spray chamber. However, when the structure is working, it is necessary to first block the air inlet hole with your fingers, and then squeeze the silicone ball head. The air in the silicone ball head enters the inflation chamber through the one-way air inlet valve and enters the bottle body through the exhaust hole. The bottle is filled with compressed air, and then the control switch is turned on. The compressed air fills the liquid in the bottle into the spray chamber, and the liquid is sprayed out in the form of mist from the spray head. Therefore, three steps are required for the nozzle to spray, which makes the operation inconvenient, and it needs to be improved. Utility Model Content

[0004] The utility model aims to provide a spray head assembly for a sprayer, which solves the problem of inconvenient operation of the existing spray heads.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a spray head assembly of a sprayer, comprising a shell, an upper cover and a connecting cover, wherein the upper cover is located above the shell, the connecting cover is sleeved at the bottom of the shell, a spray pressure cavity is arranged in the shell, the bottom of the spray pressure cavity is sleeved on the connecting cover, a spray head is arranged on the side of the shell, a gas storage tank for storing excess gas is arranged at the bottom of the connecting cover, a spring 1 and a booster piston with one end abutting against the spring 1 are arranged in the gas storage tank, the spray pressure cavity comprises a water inlet tank, a booster chamber and a gas storage pipeline, the inlet tank is provided with a water inlet chamber, a booster chamber and a gas storage pipeline, and the inlet chamber is provided with a water inlet chamber. A second spring is arranged in the water tank, and a main boosting assembly capable of moving upward to increase pressure is arranged on the second spring. The upper end of the water inlet tank is respectively connected with the boosting chamber and the gas storage pipe. The boosting chamber is located on the right side of the gas storage pipe. The other end of the gas storage pipe is connected with the gas storage tank through a connecting pipe on the connecting cover. The other end of the boosting chamber is connected with the spray head, and a one-way boosting valve body is arranged in the boosting chamber to ensure one-way spraying of gas from the spray head. A trigger is arranged on the side of the outer shell, and the trigger is used to control the operation of the main boosting assembly in the water inlet tank.

[0007] Preferably, in order to improve the boosting effect and simplify the overall structure, the main boosting assembly includes a main piston, a piston seat and a straw, the straw is inserted into the main piston, a glass bead is arranged on the head of one end of the straw inserted into the main piston, and a piston seat is arranged above the main piston.

[0008] Preferably, in order to improve the boosting effect and simplify the overall structure, a nozzle seat is arranged in the boosting chamber, the spray head is installed on one side of the nozzle seat, and the one-way boosting valve body includes a small piston seat, a spring three, a small piston and a blind cover, a nozzle connected to the spray head is arranged in the blind cover, the small piston seat is located in the boosting chamber, the spring three and the small piston are arranged in the small piston seat, one end of the blind cover is clamped in the clamping seat of the nozzle seat, and the other end of the blind cover is in the small piston seat, one end of the small piston is against the spring three, and the other end is clamped in the nozzle, and when the small piston moves, it can be separated from the nozzle, so as to ensure that the boosting chamber is connected with the nozzle.

[0009] Preferably, an exhaust hole connected to the pressurization chamber is provided above the pressurization chamber, and the exhaust hole allows the one-way pressurization valve body to achieve rapid water inlet, rapid water sealing, and rapid water outlet, thereby ensuring that the spray head does not leak.

[0010] Preferably, in order to facilitate disassembly, the top of the gas storage tank is threadedly connected to the connecting cover, and a boost plug is provided in the gas storage tank.

[0011] Preferably, a suction hose connected to the outside is connected below the suction pipe.

[0012] Preferably, for easy disassembly, the upper cover is snap-fitted onto the upper part of the outer shell.

[0013] The utility model has the following beneficial effects: the structure is set up to realize the spraying effect of the spray head only by pressing the trigger, and at the same time, during the spraying process, the excess pressure is quickly collected. When the trigger stops, the collected pressure works to realize the state of continuous spraying. Therefore, the structure only needs to be operated in one step, which is convenient for users to operate and can also realize continuous spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a spray head assembly of a sprayer in Example 1;

[0015] Figure 2 is a cross-sectional view of a spray head assembly of a sprayer in Example 1;

[0016] Figure 3 An exploded view of a spray head assembly of a sprayer in Example 1;

[0017] Figure 4 for Figure 2 A magnified image of point A;

[0018] Figure 5 It is a schematic diagram of the structure of the spray chamber.

[0019] Reference numerals:

[0020] Shell 1, upper cover 2, connecting cover 3, spray pressure cavity 4, water inlet bin 4-1, boosting chamber 4-2, air storage pipeline 4-3, air storage tank 5, spring one 6, boosting piston 7, spring two 8, main boosting assembly 9, main piston 9-1, piston seat one 9-2, suction pipe 9-3, glass beads 9-4, connecting pipe 10, spray head 11, one-way boosting valve body 12, small piston seat 12-1, spring three 12-2, small piston 12-3, blind cover 12-4, nozzle 12-5, trigger 13, nozzle seat 14, exhaust hole 15, boosting plug 16, suction hose 17. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-5As shown, a spray head assembly of a sprayer disclosed in this embodiment includes a shell 1, an upper cover 2 and a connecting cover 3. The upper cover 2 is located above the shell 1, and for the convenience of disassembly, the upper cover 2 is snap-fitted on the upper part of the shell 1, so that it is convenient to disassemble the upper cover 2 later and take out various components in the shell 1. The connecting cover 3 is located below the shell 1, and a spray pressure cavity 4 is arranged in the shell 1. The lower part of the spray pressure cavity 4 is sleeved on the connecting cover 3, and a spray head 11 is arranged on the side of the shell 1. A gas storage tank 5 for storing excess gas is arranged below the connecting cover 3, and a spring 6 and a booster piston 7 with one end abutting against the spring 6 are arranged in the gas storage tank 5. The spray pressure cavity 4 It includes a water inlet bin 4-1, a boosting chamber 4-2 and an air storage pipe 4-3. A spring 2 8 is arranged in the water inlet bin 4-1, and a main boosting assembly 9 capable of moving upward to increase pressure is arranged on the spring 2 8. The upper end of the water inlet bin 4-1 is connected with the boosting chamber 4-2 and the air storage pipe 4-3 respectively. The boosting chamber 4-2 is located on the right side of the air storage pipe 4-3. The other end of the air storage pipe 4-3 is connected with the air storage tank 5 through the connecting pipe 10 on the connecting cover 3. The other end of the boosting chamber 4-2 is connected with the spray head 11, and a one-way boosting valve body 12 is arranged in the boosting chamber 4-2 to ensure that the gas is sprayed out from the spray head 11 in one direction. A trigger 13 is arranged on the side of the shell 1, and the One end of the trigger 13 is hinged to the side of the water inlet bin 4-1, and the trigger 13 is used to control the operation of the main boosting assembly 9 in the water inlet bin 4-1. In order to improve the boosting effect and the overall structure is simple, the main boosting assembly 9 includes a main piston 9-1, a piston seat 9-2 and a suction pipe 9-3, the suction pipe 9-3 is inserted into the main piston 9-1, and a glass bead 9-4 is arranged at the head of one end of the suction pipe 9-3 inserted into the main piston 9-1, a piston seat 9-2 is arranged above the main piston 9-1, and a nozzle seat 14 is arranged in the boosting chamber 4-2, and the spray head 11 is installed on one side of the nozzle seat 14, and the one-way boosting valve body 12 includes a small piston seat 12- 1. Spring three 12-2, small piston 12-3 and blind cover 12-4, a nozzle 12-5 connected to the spray head 11 is arranged in the blind cover 12-4, the small piston seat 12-1 is located in the booster chamber 4-2, the spring three 12-2 and the small piston 12-3 are arranged in the small piston seat 12-1, one end of the blind cover 12-4 is clamped in the clamping seat 18 of the nozzle seat 14, and the other end of the blind cover 12-4 is as for the small piston seat 12-1, one end of the small piston 12-3 is against the spring three 12-2, and the other end is clamped in the nozzle 12-5, and when the small piston 12-3 moves, it can be separated from the nozzle 12-5 to ensure that the booster chamber 4-2 is connected with the nozzle 12-5.

[0024] Preferably, an exhaust hole 15, also called an exhaust position, which is connected to the boosting chamber 4-2 is provided above the boosting chamber 4-2. The exhaust position can allow the one-way boosting valve body 12 to achieve rapid water inlet, rapid ventilation, rapid water sealing, and rapid water outlet, thereby ensuring that the spray head 11 does not leak. In order to facilitate disassembly, the top of the gas storage tank 5 is threadedly connected to the connecting cover 3, and a boosting plug 16 is provided in the gas storage tank 5. By providing the boosting plug 16 and movably plugging the boosting plug 16 in the gas storage tank 5, it is convenient to remove the boosting plug 16 later to exhaust the gas storage tank 5, and a suction hose 17 connected to the outside is connected to the bottom of the suction pipe 9-3. By using the suction hose 17, the liquid in the bottle can be sucked into the water inlet bin 4-1 at the trigger 13.

[0025] The specific working principle of this structure is as follows: first insert the suction hose 17 into the corresponding bottle body, and then the shell 1 is threadedly connected to the corresponding bottle body, and then it is only necessary to repeatedly press the trigger 13 to pressurize the water inlet tank 4-1 to realize the liquid intake, and ensure that the main piston 9-1 moves up and down in the water inlet tank 4-1. Since the main piston 9-1 is blocked by the glass beads 9-4 below, it can only be pressurized upwards, and the air pressure drives the liquid to move upwards, and part of the pressure drives the liquid to move into the boosting chamber 4-2. The liquid moves to the boosting chamber 4-2 under a certain pressure, and the small piston 12-3 moves toward the spring three 12-2, squeezing the spring three 12-2, and the small piston 12-3 is separated from the nozzle 12-5, ensuring that the boosting chamber 4-2 is connected to the nozzle seat 14, so that the spray head 11 sprays liquid, and then when the pressure becomes smaller, the spring three 12-2 is reset to ensure that the small piston 12-3 blocks the nozzle 12-5 to avoid water leakage.

[0026] Another pressure drives the liquid into the gas tank 5 from the gas storage pipe 4-3 and the connecting pipe 10, and as the number of times the trigger 13 is pressed increases, the booster piston 7 in the gas tank 5 slowly moves downward. When the trigger 13 stops, the booster piston 7 is pushed upward under the action of the spring 6, and the internal liquid is sequentially ejected from the spray head 11 through the connecting pipe 10, the gas storage pipe 4-3 and the liquid to the booster chamber 4-2, and finally the water is continuously sprayed after the trigger 13 stops.

[0027] Therefore, through the present structural setting, the spray head 11 can spray by only pressing the trigger 13. At the same time, during the spraying process, the excess pressure is quickly collected. When the trigger 13 stops, the collected pressure works to achieve a continuous spraying state. Therefore, the present structure only requires one step of operation, which is convenient for users to operate and can also achieve continuous spraying.

[0028] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A spray head assembly of a sprayer, comprising a shell (1), an upper cover (2) and a connecting cover (3), wherein the upper cover (2) is located above the shell (1), the connecting cover (3) is sleeved at the bottom of the shell (1), a spray pressure cavity (4) is arranged in the shell (1), the bottom of the spray pressure cavity (4) is sleeved on the connecting cover (3), and a spray head (11) is arranged on the side of the shell (1), characterized in that: A gas storage tank (5) for storing excess gas is arranged below the connection cover (3), a spring (6) and a booster piston (7) with one end abutting against the spring (6) are arranged in the gas storage tank (5), the spray chamber (4) comprises a water inlet tank (4-1), a booster chamber (4-2) and a gas storage pipeline (4-3), a spring (8) is arranged in the water inlet tank (4-1), a main booster assembly (9) capable of moving upward to boost pressure is arranged on the spring (8), the upper end of the water inlet tank (4-1) is respectively connected to the booster chamber (4-2) and the gas storage pipeline (4-3), and the booster chamber (4-2) and the gas storage pipeline (4-3) are respectively connected to the booster chamber (4-2) and the gas storage pipeline (4-3). -3), the boost chamber (4-2) is located on the right side of the gas storage pipeline (4-3), the other end of the gas storage pipeline (4-3) is connected to the gas storage tank (5) through the connecting pipe (10) on the connecting cover (3), the other end of the boost chamber (4-2) is connected to the spray head (11), and a one-way boost valve body (12) is arranged in the boost chamber (4-2) to ensure that the gas is sprayed out from the spray head (11) in one direction, and a trigger (13) is arranged on the side of the shell (1), and the trigger (13) is used to control the operation of the main boost component (9) in the water inlet bin (4-1).

2. The spray head assembly of a sprayer according to claim 1, characterized in that: The main boosting assembly (9) comprises a main piston (9-1), a piston seat (9-2) and a suction pipe (9-3), wherein the suction pipe (9-3) is inserted into the main piston (9-1), a glass bead (9-4) is arranged at one end of the suction pipe (9-3) inserted into the main piston (9-1), and a piston seat (9-2) is arranged above the main piston (9-1).

3. A spray head assembly for a sprayer according to claim 1 or 2, characterized in that: A nozzle seat (14) is arranged in the boosting chamber (4-2), the spray head (11) is installed on one side of the nozzle seat (14), and the one-way boosting valve body (12) comprises a small piston seat (12-1), a spring three (12-2), a small piston (12-3) and a cover (12-4), a nozzle (12-5) connected to the spray head (11) is arranged in the cover (12-4), the small piston seat (12-1) is located in the boosting chamber (4-2), and the small piston seat (12-1) is provided with a nozzle (12-5) connected to the spray head (11). The spring three (12-2) and the small piston (12-3) are provided, one end of the cover (12-4) is clamped in the clamping seat (18) of the nozzle seat (14), and the other end of the cover (12-4) is in the small piston seat (12-1), one end of the small piston (12-3) is against the spring three (12-2), and the other end is clamped in the nozzle (12-5), and when the small piston (12-3) moves, it can be separated from the nozzle (12-5), so as to ensure that the boost chamber (4-2) is connected with the nozzle (12-5).

4. A spray head assembly for a sprayer according to claim 1 or 2, characterized in that: An exhaust hole (15) communicating with the supercharging chamber (4-2) is provided above the supercharging chamber (4-2).

5. The spray head assembly of a sprayer according to claim 3, characterized in that: The upper part of the gas storage tank (5) is threadedly connected to the connection cover (3), and a pressurization plug (16) is arranged inside the gas storage tank (5).

6. The spray head assembly of a sprayer according to claim 2, characterized in that: A suction hose (17) connected to the outside is connected below the suction pipe (9-3).

7. The spray head assembly of a sprayer according to claim 2, characterized in that: The upper cover (2) is snap-fitted onto the upper part of the outer shell (1).

Images