Double-flow type powder preparation spraying device

Abstract

A double-flow type powder preparation spraying device comprises a container, a feeding rod, a spraying head, a sealing cap and an outer cover, a feeding hole is formed in the center of the feeding rod, a spraying hole is formed in the center of the spraying head, and an opening communicated with the inner space of the container is formed in the center of the upper end face of the container; a sealing seat matched with the opening is arranged at the lower end of the spraying head; an insertion hole communicated with the spraying hole is formed in the center of the sealing seat; the upper end of the feeding rod is inserted into the inserting hole, and the lower end of the feeding rod is located in the lower portion of the container. A plurality of side diversion grooves which are uniformly distributed in the circumference are formed in the inner circumferential surface of the insertion hole; the inner wall of the upper side of the inserting hole is provided with a plurality of upper flow dividing grooves corresponding to the side flow dividing grooves in position. According to the double-flow type powder preparation spraying device, it can be guaranteed that powder preparation is in a mist shape when sprayed out, the spraying effect is guaranteed, the one-time spraying amount can be effectively limited, waste is avoided, meanwhile, the using angle of the spraying device is not limited any more, and use is convenient.

Description

Technical Field

[0001] This utility model relates to a powder preparation spraying device, and more particularly to a dual-flow powder preparation spraying device. Background Technology

[0002] A powder preparation spraying device is a device that can spray out powder preparations for use, such as watermelon frost spray, which can be used by pressing to spray out the medicine powder.

[0003] Traditional powder coating devices mainly consist of a container, a feed rod, a spray head, a sealing cap, and an outer cover. The spray head is directly installed on the top of the container, while the feed rod is placed directly inside the container, with its upper end connected to the spray head. To prevent leakage and waste of powder when the device is not in use, a sealing cap is placed over the upper end of the spray head. Furthermore, since the spray head will come into contact with the mouth and other areas, an outer cover is screwed onto the top of the container to ensure hygiene. The spray head is enclosed within the outer cover, providing insulation and protection. When needed, the outer cover can be unscrewed, and the sealing cap can be removed from the upper end of the feeding rod. At this point, the internal space of the container can be connected to the outside through the feeding hole in the feeding rod and the spray hole in the spray head. Then, simply press the outer wall of the container from the outside in to force the powder preparation inside the container into the feeding hole from the lower end of the feeding hole. Under pressure, it enters the inner hole of the spray head and is finally sprayed out from the upper end of the spray head for use.

[0004] Because the feed rod and the spray head are coaxially arranged, a straight channel is formed between the internal space of the container and the outside. There is only one channel, so the pressure generated by squeezing the container will be entirely applied to this channel. As a result, a large amount of powder is sprayed out from the upper orifice of the spray head at once under this high pressure, which is wasteful. In addition, a large amount of powder enters the feed hole through the lower orifice, which can easily cause the large amount of powder to be squeezed together and accumulate. In the end, the powder sprayed out from the upper orifice of the spray head is in block form instead of mist, which affects the spraying effect.

[0005] Since the powder formulation inside the container can only enter the feeding hole through the orifice at the lower end of the feed rod, once the container is inverted, the powder formulation will move away from the lower end of the feed rod. No matter how the container is pressed, the powder formulation cannot enter the feeding hole. This situation will limit the operating angle of the spraying device, making the spraying process difficult.

[0006] During the actual removal of the sealing cap, due to the direct friction between the inner wall of the sealing cap and the outer wall of the spray head, and the interference fit between the spray head and the upper opening of the container, when the user pulls the sealing cap upwards to remove it, this force can easily pull the spray head upwards at the same time, causing the lower end of the spray head to accidentally detach from the upper opening of the container, ultimately resulting in a large amount of powdered preparation being poured out and wasted. Summary of the Invention

[0007] The present invention aims to solve the existing technical problem by providing a dual-flow powder preparation spraying device. This device not only ensures that the powder preparation is sprayed out in a mist form to guarantee the spraying effect, but also effectively limits the amount sprayed at one time to avoid waste. At the same time, it removes the limitation on the operating angle of the spraying device, making it easy to use.

[0008] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0009] This utility model discloses a dual-flow powder coating device, including a container, a feeding rod, a spray head, a sealing cap, and an outer cover. The feeding rod has a feeding hole at its center, and the spray head has a spray hole at its center. The upper surface of the container has an opening that communicates with its internal space. The lower end of the spray head has a sealing seat that matches the opening. The sealing seat has an insertion hole at its center that communicates with the spray hole. The upper end of the feeding rod is inserted into the insertion hole, and the lower end of the feeding rod is located in the lower part of the container. The inner circumferential surface of the insertion hole has several side diversion grooves that are evenly distributed in a circle. The upper inner wall of the insertion hole has several upper diversion grooves that correspond to the positions of the side diversion grooves. The side diversion grooves communicate with the lower end opening of the spray hole through the upper diversion grooves.

[0010] The lower end of the insertion hole has an inner wall with a guide cone surface that is narrower at the top and wider at the bottom.

[0011] The upper outer wall of the sealing seat is provided with a limiting part that fits against the upper surface of the container; the lower surface of the sealing seat is provided with an annular elastic groove; the upper inner wall of the opening is provided with an annular limiting protrusion; the upper outer wall of the sealing seat is provided with a limiting groove that matches the limiting protrusion; the lower outer diameter of the sealing seat gradually decreases from top to bottom.

[0012] The opening has an annular auxiliary groove in the middle; the outer wall of the sealing seat has an auxiliary protrusion that matches the auxiliary groove, and the surface of the auxiliary protrusion is arc-shaped.

[0013] The upper outer wall of the container is provided with external threads; the lower end of the outer cover is screwed to the upper end of the container through external threads, and the outer cover covers the spray head.

[0014] The spray head has a diffuser hole at the center of its upper surface, which is coaxial with the spray hole. The diameter of the diffuser hole gradually increases from bottom to top. The lower end of the diffuser hole is connected to the spray hole through a sealing hole. The sealing cap covers the upper surface of the spray head. The center of the upper inner wall of the sealing cap has a sealing rod that matches the sealing hole.

[0015] The lower end of the sealing rod is provided with an insertion ball head.

[0016] The beneficial effects of this utility model are:

[0017] Compared with existing technologies, the dual-flow powder coating device of this invention has several circumferentially distributed side diversion grooves on the inner circumferential surface of the insertion hole. Therefore, when the container is squeezed, the air pressure generated by the squeeze no longer only enters the feeding hole through the lower end of the feeding hole. A portion of the air pressure is diverted to the side diversion grooves, and then enters the spray hole through the upper diversion groove, and finally is discharged to the outside. At this time, the side diversion grooves can play a pressure relief role, avoiding the situation where the air pressure entering the feeding hole from the lower end of the feeding hole is too high, causing a large amount of powder to be sprayed to the outside at once, resulting in waste. At the same time, when the powder in the feeding hole enters the spray hole, it will pass through the position of the upper diversion groove. At this time, the gas sprayed into the spray hole by the upper diversion groove will disperse the powder, effectively preventing the powder from being sprayed to the outside in a blocky state, and effectively ensuring the atomization effect.

[0018] Compared with the prior art, when the container of the dual-flow powder preparation spraying device with the structure of this utility model is inverted, although the powder preparation in the container is far away from the lower end of the feed hole, it moves closer to the side diversion groove. Therefore, when the container is squeezed, the powder preparation in the container will be sprayed out to the outside through the side diversion groove, the upper diversion groove, the spray hole, the sealing hole, and the diffusion hole in sequence, and can still be sprayed. Thus, the spraying angle of the spraying device is no longer limited, making it convenient for users to use.

[0019] Compared with the prior art, the elastic groove of the dual-flow powder coating device with the structure of this utility model allows the outer wall of the sealing seat to deform to a certain extent when it is squeezed from the outside to the inside, giving the sealing seat a certain elasticity. This elasticity is used to make the limiting protrusion engage with the limiting groove. The cooperation between the limiting protrusion and the limiting groove can effectively increase the fastening force of the spray head to be fixed in the upper opening of the container through the sealing seat. Therefore, even if the sealing cap is pulled up, the spray head will not be pulled up at the same time, avoiding the situation where the spray head is accidentally pulled out and a large amount of powder preparation is poured out from the upper opening of the container, thus effectively avoiding the waste caused by the accidental pouring out of the powder preparation. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the dual-flow powder coating device of this utility model;

[0021] Figure 2 yes Figure 1 An enlarged view of part A. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] Please see Figure 1 , Figure 2 This utility model provides a dual-flow powder preparation spraying device, including a container 1, a feeding rod 2, a spray head 3, a sealing cap 4, and an outer cover 5. The feeding rod 2 has a feeding hole 201 at its center, and the spray head 3 has a spray hole 301 at its center. The upper end face of the container 1 has an opening 101 that communicates with its internal space. The lower end of the spray head 3 has a sealing seat 302 that matches the opening. The sealing seat 302 has an insertion hole 303 at its center that communicates with the spray hole 301. The upper end of the feeding rod 2 is inserted into the insertion hole 303, and the lower end of the feeding rod 2 is located in the lower part of the container 1. The inner circumferential surface of the insertion hole 303 has a plurality of side diversion grooves 304 that are evenly distributed in a circle. The upper inner wall of the insertion hole 303 has a plurality of upper diversion grooves 305 that correspond to the positions of the side diversion grooves 304. The side diversion grooves 304 communicate with the lower end opening of the spray hole 301 through the upper diversion grooves 305.

[0024] The lower end of the insertion hole 303 has an inner wall with a guide cone surface 306 that is narrower at the top and wider at the bottom.

[0025] The upper outer wall of the sealing seat 302 is provided with a limiting part 307 that fits against the upper surface of the container 1; the lower surface of the sealing seat 302 is provided with an annular elastic groove 308; the upper inner wall of the opening 101 is provided with an annular limiting protrusion 102; the upper outer wall of the sealing seat 302 is provided with a limiting groove 309 that matches the limiting protrusion 102; the lower outer diameter of the sealing seat 302 gradually decreases from top to bottom.

[0026] The opening 101 has an annular auxiliary groove 104 in the middle; the outer wall of the sealing seat 302 has an auxiliary protrusion 310 that matches the auxiliary groove 104, and the surface of the auxiliary protrusion 310 is arc-shaped.

[0027] The upper outer wall of the container 1 is provided with an external thread 103; the lower end of the outer cover 5 is screwed to the upper end of the container 1 through the external thread 103, and the outer cover 5 covers the spray head 3.

[0028] The upper end face of the spray head 3 is provided with a diffuser hole 311 coaxial with the spray hole 301, and the diameter of the diffuser hole 311 gradually increases from bottom to top; the lower end of the diffuser hole 311 is connected to the spray hole 301 through a sealing hole 312; the sealing cap 4 covers the upper end of the spray head 3; the center of the upper inner wall of the sealing cap 4 is provided with a sealing rod 401 that matches the sealing hole 312.

[0029] The lower end of the sealing rod 401 is provided with an insertion ball head 402.

[0030] The method of using this utility model is as follows:

[0031] When container 1 is stationary, the powder preparation 6 placed inside container 1 will accumulate in the lower part of container 1. Before using the spraying device, the outer cover can be unscrewed from the top of container 1, and then the sealing cap can be pulled upward from the top of the spray head 3. When the spraying device is needed, the outer walls on both sides of container 1 can be squeezed from the outside to the inside at the same time. At this time, the internal space of container 1 becomes smaller and its internal air pressure increases. The pressurized gas will squeeze the powder preparation 6 located between the lower end face of the feed rod 2 and the lower inner wall of container 1 through the lower end opening of the feed hole 201 into the feed hole 201. Under the subsequent pressure, the powder preparation 6 will be sprayed out to the outside through the spray head 3, the sealing hole 312, and the diffusion hole 311 in sequence for use. Since the diameter of the diffusion hole 311 increases from bottom to top, when the powder preparation 6 passes through the diffusion hole 311 from bottom to top, the gradually increasing space makes the powder preparation easier to disperse and present a mist effect, ensuring the spraying effect.

[0032] Because the inner circumferential surface of the insertion hole 303 is provided with several circumferentially evenly distributed side diversion grooves 304, when the container 1 is squeezed, the air pressure generated by the squeeze is no longer limited to entering the feeding hole 201 through the lower end orifice. A portion of the air pressure is diverted to the side diversion grooves 304, then enters the spray hole 301 through the upper diversion groove 305, and is finally discharged to the outside. At this time, the side diversion grooves 304 can play a pressure relief role, preventing excessive air pressure entering the feeding hole 201 from the lower end orifice, which could lead to a large amount of powder being sprayed out to the outside at once, causing waste. Meanwhile, when the feeding hole... When the powder preparation 6 enters the spray hole 301 from the feed hole 201, it will pass through the upper diversion groove 305. At this time, the gas sprayed into the spray hole 301 from the upper diversion groove 305 will disperse the powder preparation 6, effectively preventing the powder preparation 6 from being sprayed out of the outside in a blocky state, thus effectively ensuring the atomization effect. Since the gas flow rate that the upper diversion groove 305 can divert is limited, the air pressure sprayed from the upper diversion groove 305 is less than the air pressure sprayed from the feed hole 201 to the spray head 3, which will not affect the powder preparation being sprayed from the feed hole 201 into the spray hole 301. While ensuring the atomization effect, it ensures that the powder preparation can be smoothly sprayed out of the outside.

[0033] If container 1 needs to be used upside down, as container 1 is inverted, the powder preparation inside container 1 moves away from the lower end of the feed hole 201, but moves closer to the side diversion channel 304. Therefore, when container 1 is squeezed, the powder preparation inside container 1 will be sprayed out to the outside through the side diversion channel 304, the upper diversion channel 305, the spray hole 301, the sealing hole 312, and the diffusion hole 311 in sequence, and can still be sprayed. This makes the spraying angle of the spraying device no longer limited, making it easier for users to use.

[0034] The inner wall of the lower end of the insertion hole 303 is provided with an inlet cone surface 306 that is narrower at the top and wider at the bottom. The presence of the inlet cone surface 306 not only facilitates the rapid insertion of the upper end of the feeding rod 2 into the insertion hole 303, but also facilitates the rapid entry of airflow and powder preparation into the side diversion groove 304.

[0035] The upper outer wall of the sealing seat 302 is provided with a limiting part 307 that fits against the upper end face of the container 1. The lower surface of the sealing seat 302 is provided with an annular elastic groove 308. The upper inner wall of the opening 101 is provided with an annular limiting protrusion 102. The upper outer wall of the sealing seat 302 is provided with a limiting groove 309 that matches the limiting protrusion 102. The lower outer diameter of the sealing seat 302 gradually decreases from top to bottom. The presence of the elastic groove 308 allows the outer wall of the sealing seat 302 to deform to a certain extent when it is squeezed from the outside to the inside, so that the sealing seat 302... 2 has a certain elasticity, which is used to make the limiting protrusion 102 fit into the limiting groove 309. The cooperation between the limiting protrusion 102 and the limiting groove 309 can effectively increase the fastening force of the spray head 3 to be fixed in the upper opening of the container 1 by the sealing seat 302. Therefore, even if the sealing cap 4 is pulled up, the spray head 3 will not be pulled up at the same time, avoiding the situation where the spray head 3 is accidentally pulled out, causing a large amount of powder preparation 6 to pour out from the upper opening of the container 1, thereby effectively avoiding the situation where the powder preparation 6 is accidentally poured out and wasted.

[0036] An annular auxiliary groove 104 is provided in the middle of the opening 101. An auxiliary protrusion 310 matching the auxiliary groove 104 is provided on the outer wall of the sealing seat 302. The surface of the auxiliary protrusion 310 is arc-shaped. The presence of the auxiliary protrusion 310 can further increase the fastening force of the spray head 3 to the upper opening 101 of the container 1 through the sealing seat 302, and avoid the situation where the spray head 3 is removed at the same time when the sealing cap 4 is removed.

[0037] The upper outer wall of container 1 is provided with external thread 103. The lower end of the outer cover 5 is screwed to the upper end of container 1 through external thread 103. The outer cover 5 covers the spray head 3. This fixing method can not only ensure the stability of the outer cover 5, but also facilitate the disassembly and assembly of the outer cover 5.

[0038] A sealing rod 401 matching the sealing hole 312 is provided at the center of the upper inner wall of the sealing cap 4. The presence of the sealing rod 401 can not only seal the sealing hole 312, but also prevent the sealing hole 312 from being blocked by the powder preparation. The lower end of the sealing rod 401 is provided with an insertion ball head 402. The presence of the insertion ball head 402 can make it easier for the sealing rod 401 to pass through the sealing hole, and make it easier to clean and seal the sealing hole 312.

Claims

1. A dual-flow powder coating device, comprising a container, a feed rod, a spray head, a sealing cap, and an outer cover, wherein the feed rod has a feed hole at its center, and the spray head has a spray hole at its center, characterized in that: The container has an opening at its center on the upper surface, which communicates with its internal space; the spray head has a sealing seat at its lower end that matches the opening; the sealing seat has an insertion hole at its center that communicates with the spray hole; the upper end of the feeding rod is inserted into the insertion hole, and the lower end of the feeding rod is located inside the lower part of the container; the inner circumferential surface of the insertion hole has several side diversion grooves that are evenly distributed in a circle; the upper inner wall of the insertion hole has several upper diversion grooves that correspond to the positions of the side diversion grooves; the side diversion grooves communicate with the lower opening of the spray hole through the upper diversion grooves.

2. The dual-flow powder coating apparatus according to claim 1, characterized in that: The lower end of the insertion hole has an inner wall with a guide cone surface that is narrower at the top and wider at the bottom.

3. The dual-flow powder coating apparatus according to claim 1, characterized in that: The upper outer wall of the sealing seat is provided with a limiting part that fits against the upper surface of the container; the lower surface of the sealing seat is provided with an annular elastic groove; the upper inner wall of the opening is provided with an annular limiting protrusion; the upper outer wall of the sealing seat is provided with a limiting groove that matches the limiting protrusion; the lower outer diameter of the sealing seat gradually decreases from top to bottom.

4. The dual-flow powder coating apparatus according to claim 3, characterized in that: The opening has an annular auxiliary groove in the middle; the outer wall of the sealing seat has an auxiliary protrusion that matches the auxiliary groove, and the surface of the auxiliary protrusion is arc-shaped.

5. The dual-flow powder coating apparatus according to claim 1, characterized in that: The upper outer wall of the container is provided with external threads; the lower end of the outer cover is screwed to the upper end of the container through external threads, and the outer cover covers the spray head.

6. The dual-flow powder coating apparatus according to claim 1, characterized in that: The spray head has a diffuser hole at the center of its upper surface, which is coaxial with the spray hole. The diameter of the diffuser hole gradually increases from bottom to top. The lower end of the diffuser hole is connected to the spray hole through a sealing hole. The sealing cap covers the upper surface of the spray head. The center of the upper inner wall of the sealing cap has a sealing rod that matches the sealing hole.

7. The dual-flow powder coating apparatus according to claim 6, characterized in that: The lower end of the sealing rod is provided with an insertion ball head.

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