Continuous spraying head

Abstract

A continuous spraying head comprises a main body, a head cap, a liquid outlet one-way valve and a wrench, a liquid outlet channel and a pump body are arranged in the main body, the liquid outlet channel comprises a transverse channel and a vertical channel, the vertical channel is connected with the transverse channel through a pressure increasing valve, a main working valve is arranged in the pump body, the lower end of the pump body is connected with a suction pipe, a cylinder body is arranged in the main body, and a main piston is installed on the cylinder body. A through hole is formed in the inner end of the cylinder body and communicated with the pump body and the vertical channel, a continuous pressure spring seat and a continuous pressure spring are arranged on the upper portion in the pump body, a continuous pressure sealing seat capable of moving up and down is arranged at the upper end in the main body, a continuous pressure cavity is formed in the upper end of the continuous pressure sealing seat, and a gap is formed between the continuous pressure cavity and the transverse channel. And the continuous pressure spring is supported between the continuous pressure spring seat and the continuous pressure sealing seat, so that the continuous pressure sealing seat has a trend of always moving upwards to continuously spray liquid in the continuous pressure cavity. The utility model has the advantages of simple and reasonable structure, convenience in assembly, capability of meeting the requirement of continuous injection, no need of additional arrangement of an outer cover, low cost and strong universality.

Description

Technical Field

[0001] The utility model belongs to the technical field of daily cosmetics, and relates to a continuous spray head for a cosmetic bottle. Background Art

[0002] Cosmetics refer to chemical industrial products or fine chemical products that are applied, sprayed or otherwise dispersed on any part of the human body surface, such as skin, hair, fingernails, lips and teeth, etc., for the purpose of cleaning, maintaining, beautifying, modifying and changing appearance, or correcting body odor and keeping in good condition. Cosmetics come in various forms such as liquid, powder and paste. Among them, emulsion or latex cosmetics, such as skin care lotion, foundation cream, etc., are usually packed in special bottles, and the emulsion is squeezed out from the nozzle by pressing the pressing head for use. For some cosmetics, they need to be used in a continuous spraying manner during use.

[0003] Most general sprayers use pulling a trigger to achieve one-time spraying, and cannot achieve continuous spraying, which affects the spraying effect.

[0004] After investigation, the existing Chinese patent "A Liquid Spraying Pump" with the patent number CN202222266361.3 includes a pump body, a large cover connecting the container, a nozzle, an outlet check valve, a main piston rod and a wrench for driving the main piston rod to move up and down. Its characteristics are: the liquid outlet channel includes a horizontal channel in the upper part of the pump body, the main piston pressurizing chamber is connected to the horizontal channel through a pressurizing valve and its outlet, the front end of the horizontal channel is communicated with the outlet check valve on the pump body, a continuous pressure sealing seat that can move left and right is arranged in the horizontal channel, a continuous pressure chamber is formed between the continuous pressure sealing seat and the front part of the horizontal channel, the continuous pressure chamber is communicated with the outlet check valve through the horizontal channel, and a continuous pressure spring that keeps the volume of the continuous pressure chamber decreasing is arranged between the continuous pressure sealing seat and the rear part of the horizontal channel. This structure can make the spraying amount large and the continuous spraying time long by increasing the liquid storage space, but increasing the liquid storage space will increase the volume, which is not conducive to carrying around. Moreover, an outer cover needs to be set outside the pump body, and the outer cover needs to be assembled manually, which is rather troublesome, and the matching bottles are also limited and cannot be universal. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a continuous spray head with a simple and reasonable structure, convenient assembly and capable of realizing continuous spraying in view of the above technical status.

[0006] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A continuous spray nozzle, including the main body of the nozzle, a head cap, a liquid outlet check valve, a wrench, and a large cover connecting the container. There is a liquid outlet channel inside the main body. It is characterized in that: the liquid outlet channel includes a horizontal channel and a vertical channel that are interconnected. The liquid outlet check valve is arranged at the front end of the horizontal channel near the head cap. The vertical channel is connected to the horizontal channel through a pressure boosting valve. There is a pump body at the lower part inside the main body. The pump body is connected to the large cover. There is a main working valve at the lower part inside the pump body. A suction pipe is connected to the lower end of the pump body. There is a cylinder body below the horizontal channel inside the main body. A main piston is installed on the cylinder body. The outer end of the main piston abuts against the wrench. A spring is supported between the inner end of the main piston and the inner wall of the cylinder body. There is a through hole at the inner end of the cylinder body connected to the pump body and the vertical channel. There is a continuous pressure spring seat and a continuous pressure spring at the upper part inside the pump body. There is a sleeve at the rear end of the horizontal channel inside the main body. The upper end of the continuous pressure spring seat is hermetically sleeved with the lower end of the sleeve. There is a concave part at the upper end of the sleeve inside the main body. A continuous pressure sealing seat is arranged to be movable up and down between the upper end of the sleeve and the concave part. A continuous pressure chamber is formed at the upper end of the continuous pressure sealing seat. There is a certain gap between the continuous pressure chamber and the horizontal channel. The continuous pressure spring is supported between the continuous pressure spring seat and the continuous pressure sealing seat, so that the continuous pressure sealing seat has a tendency to always move upward to continuously press out the liquid in the continuous pressure chamber.

[0007] As an improvement, the lower end of the continuous pressure sealing seat is arranged inside the sleeve, and a sealing ring is provided on the outer wall of the lower end of the continuous pressure sealing seat to abut against and seal with the inner wall of the sleeve. One side of the upper end of the sleeve is bent horizontally and extends into the horizontal channel. A vertical channel is formed between one side of the sleeve and the inner wall of the main body.

[0008] Furthermore, the pressure boosting valve is a check valve. The pressure boosting valve includes a pressure boosting valve seat and a pressure boosting valve. The pressure boosting valve seat is installed at the rear end of the horizontal channel connected to the vertical channel. An inlet port is opened at the rear end of the pressure boosting valve seat. An outlet hole is opened on the middle side of the pressure boosting valve seat. The pressure boosting valve is a silica gel sleeve, sleeved on the pressure boosting valve seat to close the outlet hole. There is a gap between the outer wall of the upper end of the pressure boosting valve and the inner wall of the horizontal channel, which is connected to the continuous pressure chamber.

[0009] Still further, the outer wall of the pump body is provided with an external thread for threaded connection with the lower opening of the main body. The lowermost section of the pump body is formed with a socket for the upper end of the suction pipe to be inserted. The main working valve has a glass bead. The valve seat of the main working valve is arranged inside the pump body and at the upper end of the socket. The glass bead is in clearance fit with the inner side wall of the valve seat to form a one-way ball valve. The continuous pressure spring seat is a cylindrical seat body with a certain elasticity. The lower end of the continuous pressure spring seat is arranged inside the upper end of the pump body. The upper end of the continuous pressure spring seat extends out of the pump body and elastically abuts against and seals with the through hole of the cylinder body. There is a gap for liquid to flow into the cylinder body between the outer wall of the continuous pressure spring seat and the inner wall of the pump body.

[0010] Furthermore, the cylinder block and the transverse channel are horizontally arranged. The cylinder block has two upper and lower chambers. The upper one is the liquid storage chamber, and the lower one is the gas return chamber. A through hole is provided at the bottom of the liquid storage chamber and is connected to the pump body. A gas return hole is provided at the bottom of the gas return chamber. The main piston has corresponding horizontally arranged upper and lower piston valves. The spring is supported between the bottom of the liquid storage chamber and the upper piston valve. When the wrench is pulled, the main piston moves inward, the main working valve closes, and the pressure increasing valve opens. The liquid in the liquid storage chamber enters the transverse channel and the pressure continuation chamber through the pressure increasing valve.

[0011] Furthermore, the head cap is installed at the front end outlet position of the main body through threaded connection. A spray sheet is installed inside the head cap. The liquid outlet one-way valve includes a small valve, a small valve seat, and a small valve seat cover. The small valve is installed in the cavity formed by the alignment of the small valve seat and the small valve seat and is located at the rear side of the spray sheet.

[0012] Preferably, an O-ring is lined between the head cap and the main body. The spraying aperture of the head cap is 0.26 - 0.35 mm.

[0013] Furthermore, the sleeve is a circular sleeve and is integrally connected to the main body.

[0014] Furthermore, the top of the pressure continuation sealing seat is also concave.

[0015] Finally, the wrench is provided with a support arm on its inner side. Correspondingly, the outer end of the main piston has an arc surface for abutting and mating.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: A pump body, a cylinder block, a main piston, a pressure increasing valve, a pressure continuation spring, and a pressure continuation sealing seat are arranged inside the main body. When the wrench is pulled, the main piston moves inward, the main working valve closes, and the pressure increasing valve opens. The liquid in the liquid storage chamber enters the transverse channel and the pressure continuation chamber through the pressure increasing valve. When the liquid in the pressure continuation chamber accumulates to a certain extent to generate pressure, the pressure continuation sealing seat is pressed down. After stopping working, the pressure continuation spring will continue to push the pressure continuation sealing seat upward, so that the liquid in the pressure continuation chamber continuously sprays out from the head cap. The structure of the present utility model is simple and reasonable, easy to assemble, can meet the requirement of continuous spraying. At the same time, there is no need to additionally set an outer cover, with low cost and strong versatility, and can be matched with most bottles in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural sectional view of the embodiment of the present utility model when the liquid is inhaled into the liquid storage chamber;

[0018] Figure 2 It is a structural sectional view of the embodiment of the present utility model when the liquid enters the pressure continuation chamber from the liquid storage chamber;

[0019] Figure 3 It is an exploded view of the embodiment of the present utility model; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model in detail in conjunction with the embodiments and the attached drawings.

[0021] As Figure 1 、 2 、shown in Figure 3, a continuous spray head includes the main body 1 of the spray head, a head cap 2, a liquid outlet check valve 3, a pump body 4, a wrench 30, and a large cover 10 connecting to a container. An liquid outlet channel is provided in the main body 1. The liquid outlet channel includes a transverse channel 11 and a vertical channel 12 that communicate with each other. The liquid outlet check valve 3 is arranged at the front end of the transverse channel 11 near the head cap 2. The vertical channel 12 is connected to the transverse channel 11 through a pressure boosting valve 6. The pump body 4 is arranged at the lower part of the main body 1. The pump body 4 is connected to the large cover 10. A main working valve 20 is provided at the lower part of the pump body 4. A suction pipe 40 is connected to the lower end of the pump body 4. A cylinder block 13 is provided in the main body 4 and below the transverse channel 11. A main piston 7 is installed on the cylinder block 13. The outer end of the main piston 7 abuts against the wrench 30. A spring 70 is supported between the inner end of the main piston 7 and the inner wall of the cylinder block 13. A through hole a is provided at the inner end of the cylinder block 1 to communicate with the pump body 4 and the vertical channel 12, forming a tee structure. A continuous pressure spring seat 8 and a continuous pressure spring 9 are provided at the upper part of the pump body 4. A circular sleeve 14 is provided at the rear end of the transverse channel 11 in the main body 1. The circular sleeve 14 is basically longitudinally arranged so that the upper end of the continuous pressure spring seat 8 can be hermetically sleeved with the lower end of the circular sleeve 14. A concave part 15 is provided at the upper end of the circular sleeve 14 in the main body 1. A continuous pressure sealing seat 5 is arranged to be movable up and down at the upper end of the circular sleeve 14, forming a continuous pressure chamber B with the concave part 15. Usually, the top of the continuous pressure sealing seat 5 can also be concave to facilitate the formation of a larger volume of continuous pressure chamber B and extend the continuous spraying time. There is a certain gap 16 between the continuous pressure chamber B and the transverse channel 11. The continuous pressure spring 9 is supported between the continuous pressure spring seat 8 and the continuous pressure sealing seat 5, making the continuous pressure sealing seat 5 have a tendency to always move upward to continuously press out the liquid in the continuous pressure chamber B.

[0022] The specific structure is as follows: The lower end of the continuous pressure sealing seat 5 is arranged in the circular sleeve 14, and a sealing ring 50 is provided on the outer wall of the lower end of the continuous pressure sealing seat 5 to abut against and seal with the inner wall of the circular sleeve 14. One side of the upper end of the circular sleeve 14 is bent horizontally and extends into the transverse channel 11. A vertical channel 12 is formed between one side of the circular sleeve 14 and the inner wall of the main body 1. Usually, for the convenience of manufacturing, the circular sleeve 14 and the main body 1 are connected as a whole. The pressure boosting valve 6 is a check valve. The pressure boosting valve 6 includes a pressure boosting valve seat 62 and a pressure boosting valve 61. The pressure boosting valve seat 62 is installed at the rear end of the transverse channel 11 where it is connected to the vertical channel 12. A liquid inlet 621 is provided at the rear end of the pressure boosting valve seat 62. A liquid outlet hole 622 is provided on the middle side of the pressure boosting valve seat 62. The pressure boosting valve 61 is a silica gel sleeve that sleeves on the pressure boosting valve seat 62 to close the liquid outlet hole 622. A gap 63 is provided between the outer wall of the upper end of the pressure boosting valve 61 and the inner wall of the transverse channel 11 to communicate with the continuous pressure chamber B.

[0023] The outer wall of the pump body 4 is provided with an external thread for threaded connection with the lower opening of the main body 1. The lowermost section of the pump body 4 is formed with a socket 41 for inserting the upper end of the suction pipe 40. The main working valve 20 has a glass bead 23, and the valve seat 22 of the main working valve is arranged inside the pump body 4 at the upper end of the socket. The glass bead 23 is in clearance fit with the inner side wall of the valve seat 22 to form a one-way ball valve. The continuous pressure spring seat 8 is a cylindrical seat body with a certain elasticity. The lower end of the continuous pressure spring seat 8 is arranged inside the upper end of the pump body 4, and the upper end of the continuous pressure spring seat 8 extends out of the pump body 4 and elastically abuts and seals against the through hole a of the cylinder block 13. A gap 81 for liquid to flow into the cylinder block 13 is provided between the outer wall of the continuous pressure spring seat 8 and the inner wall of the pump body 4. The cylinder block 13 and the transverse channel 11 are arranged substantially parallel. The cylinder block 13 has two upper and lower cavities, where the upper one is the liquid storage cavity A and the lower one is the air return cavity C. A through hole a is provided at the bottom of the liquid storage cavity A to communicate with the pump body 4, and an air return hole b is provided at the bottom of the air return cavity C. The air return hole b is provided to maintain the pressure balance inside and outside the bottle body. The main piston 7 has corresponding horizontally arranged upper and lower piston valves 71 and 72, and a spring 70 is supported between the bottom of the liquid storage cavity A and the upper piston valve 71. In order to make the wrench rotate flexibly, a support arm 301 is provided on the inner side of the wrench 30. Correspondingly, the outer end of the main piston 7 has an arc surface 73 for abutting and cooperating. When the wrench 30 is pulled, the main piston 7 moves inward, the main working valve 20 closes, the pressure increasing valve 6 opens, and the liquid in the liquid storage cavity A enters the transverse channel 11 and the continuous pressure cavity B through the pressure increasing valve 6. Finally, because pressure will be generated inside the sleeve when the continuous pressure sealing seat 5 moves downward, the main body 1 is also provided with an exhaust hole 17.

[0024] The head cap 2 is installed at the front end outlet position of the main body 1 through threaded connection. An O-ring is lined between the head cap 2 and the main body 1. A spray sheet 21 is installed inside the head cap 2, and the spray aperture of the head cap 1 is 0.26 - 0.35 mm. The liquid outlet one-way valve 3 includes a small valve 31, a small valve seat 32, and a small valve seat cover 33. The small valve 31 is installed in the cavity formed by the butting of the small valve seat 32 and the small valve seat cover 33 and is located at the rear side of the spray sheet 21. A lower valve spring 34 is supported between the small valve 31 and the small valve seat 32.

[0025] The structure of the one-way liquid outlet valve 3 is the same as that of the prior art and will not be specifically described here.

[0026] During use, when the wrench 30 is pulled, the main piston 7 moves to the right, the main working valve 20 closes, the pressure increasing valve 6 opens, the volume of the liquid storage cavity A becomes smaller, the air pressure increases, and the liquid in the liquid storage cavity A is sent into the transverse channel 11 and the continuous pressure cavity B, as Figure 2 , since the pressure increasing valve 6 is a one-way valve, the sent liquid will not flow back.

[0027] When the liquid in the horizontal flow channel 11 reaches a certain pressure, the liquid outlet check valve 3 opens, and the liquid starts to spray out from the head cap 2. Since the aperture of the spray holes of the head cap 2 is designed to be 0.26 - 0.35 mm, and it takes more than three times the working time for the liquid delivered to the horizontal flow channel 11 each time to discharge the liquid for one working cycle of the liquid storage chamber A, when connecting the operations, a large amount of liquid will accumulate in the horizontal channel 11 and the pressure - maintaining chamber B and cannot be quickly sprayed out from the head cap 2. When the liquid in the pressure - maintaining chamber B accumulates to a certain extent and generates pressure, it will push down the pressure - maintaining seal seat 5. After stopping pulling the wrench 30, the pressure - maintaining spring 9 will continue to push the pressure - maintaining seal seat 5 upward, so that the liquid entering the horizontal channel 11 and the pressure - maintaining chamber B will continue to be sprayed out from the head cap 2.

[0028] When the pressure in the horizontal channel 11 and the pressure - maintaining chamber B decreases to a certain value, the small valve 31 moves forward under the action of the small valve spring 34 to close the liquid outlet check valve 3; when the wrench 30 resets under the action of the spring 70, the main working valve 20 opens instantaneously, the pressure - increasing valve 6 closes, and the liquid enters the liquid storage chamber A from the suction pipe, as Figure 1 。

[0029] Since the volume of the horizontal channel 11 in this embodiment is relatively large and the pressure - maintaining chamber B is added, it can meet the requirement of continuous spraying for a long time. At the same time, there is no need to additionally set an outer cover, and it has the same appearance as the traditional hand - held spray gun. The product is light in weight, convenient to assemble, low in cost, highly versatile, and can be matched with most bottles on the market.

[0030] The above - mentioned are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A continuous spray nozzle, comprising a nozzle body, a head cap, a liquid outlet one-way valve, a wrench and a large cover for connecting a container, wherein a liquid outlet channel is provided in the main body, and characterized in that: The liquid outlet channel includes a transverse channel and a vertical channel that are interconnected. The liquid outlet one-way valve is arranged at a position near the head cap at the front end of the transverse channel. The vertical channel is connected to the transverse channel through a booster valve. A pump body is arranged at the lower part of the main body. The pump body is connected to the large cover. A main working valve is arranged at the lower part of the pump body. A suction pipe is connected to the lower end of the pump body. A cylinder body is arranged in the main body and below the transverse channel. A main piston is installed on the cylinder body. The outer end of the main piston is against the wrench. A spring is supported between the inner end of the main piston and the inner wall of the cylinder body. A through hole is arranged at the inner end of the cylinder body to connect with the pump body and the vertical The channels are interconnected, a continuous pressure spring seat and a continuous pressure spring are provided at the upper part of the pump body, a sleeve is provided at the rear end of the main body and the transverse channel, the upper end of the continuous pressure spring seat is sealingly sleeved with the lower end of the sleeve, a recess is provided at the upper end of the main body and the sleeve, a continuous pressure sealing seat can be moved up and down and is arranged between the upper end of the sleeve and the recess, a continuous pressure chamber is formed at the upper end of the continuous pressure sealing seat, and a certain gap is provided between the continuous pressure chamber and the transverse channel, the continuous pressure spring is supported between the continuous pressure spring seat and the continuous pressure sealing seat, so that the continuous pressure sealing seat has a tendency to always move upward to continuously press out the liquid in the continuous pressure chamber.

2. The continuous spray nozzle according to claim 1, characterized in that: The lower end of the continuous pressure sealing seat is arranged in the sleeve, and the outer wall of the lower end of the continuous pressure sealing seat is provided with a sealing ring to seal against the inner wall of the sleeve. One side of the upper end of the sleeve is laterally bent and extends into the transverse channel, and a vertical channel is formed between one side of the sleeve and the inner wall of the main body.

3. The continuous spray nozzle according to claim 2, characterized in that: The boost valve is a one-way valve, which includes a boost valve seat and a boost valve. The boost valve seat is installed at a position where the rear end of the transverse channel is connected to the vertical channel. A liquid inlet is provided at the rear end of the boost valve seat, and a liquid outlet is provided on the middle side of the boost valve seat. The boost valve is a silicone sleeve, which is sleeved on the boost valve seat to close the liquid outlet. A gap is provided between the upper outer wall of the boost valve and the inner wall of the transverse channel to communicate with the continuous pressure chamber.

4. The continuous spray nozzle according to claim 3, characterized in that: The outer wall of the pump body is provided with an external thread which is threadedly connected with the lower opening of the main body. The lowermost section of the pump body is formed with a socket for inserting the upper end of the suction pipe. The main working valve has a glass bead. The valve seat of the main working valve is arranged in the pump body and at the upper end of the socket. The glass bead and the inner side wall of the valve seat cooperate with each other with a gap to form a one-way ball valve. The continuous pressure spring seat is a cylindrical seat body with a certain elasticity. The lower end of the continuous pressure spring seat is arranged on the inner side of the upper end of the pump body. The upper end of the continuous pressure spring seat extends out of the pump body and the through hole of the cylinder body to elastically abut and seal. A gap is provided between the outer wall of the continuous pressure spring seat and the inner wall of the pump body for liquid to flow into the cylinder body.

5. The continuous spray nozzle according to claim 4, characterized in that: The cylinder body and the transverse channel are arranged transversely, and the cylinder body has two upper and lower chambers, wherein the upper one is a liquid storage chamber and the lower one is a return air chamber. A through hole is arranged at the bottom of the liquid storage chamber to communicate with the pump body, and a return air hole is arranged at the bottom of the return air chamber. The main piston has corresponding upper and lower piston valves arranged transversely, and a spring is supported between the bottom of the liquid storage chamber and the upper piston valve. When the wrench is pulled, the main piston moves inward, the main working valve is closed, the boosting valve is opened, and the liquid in the liquid storage chamber enters the transverse channel and the continuous pressure chamber through the boosting valve.

6. The continuous spray nozzle according to any one of claims 1 to 5, characterized in that: The head cap is installed at the front end outlet position of the main body through a threaded connection. A spray piece is installed in the head cap. The liquid outlet one-way valve includes a small valve, a small valve seat and a small valve seat cover. The small valve is installed in the cavity where the small valve seat and the small valve seat are matched and is located on the rear side of the spray piece.

7. The continuous spray nozzle according to claim 6, characterized in that: An O-ring is arranged between the head cap and the main body, and the injection hole diameter of the head cap is 0.26-0.35 mm.

8. The continuous spray nozzle according to any one of claims 1 to 5, characterized in that: The sleeve is a circular sleeve and is connected with the main body as a whole.

9. The continuous spray nozzle according to any one of claims 1 to 5, characterized in that: The top of the continuous pressure sealing seat is also concave.

10. The continuous spray nozzle according to any one of claims 1 to 5, characterized in that: The wrench is provided with a support arm on the inner side, and correspondingly, the outer end of the main piston has an arc surface for abutment and fit.

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