Two-way liquid flowing spray head and beautifying device

Abstract

The utility model relates to a two-way liquid flowing spray head and a beautifying device, the spray head comprises a first shell and a second shell, a flow guide end face is formed at the end, away from the second shell, of the first shell, and the second shell is used for being connected with a handheld shell; a first through hole and a second through hole are formed in the flow guide end face, the first through hole outputs essence to skin, and the second through hole is used for adsorbing the essence and chippings; the flow guide end face is provided with two spiral flow guide channels, and the first through hole can communicate with the second through hole through the two flow guide channels correspondingly. Essence discharged from the first through hole is guided by the two flow guide channels to form two spiral essence action paths, the efficiency of guiding the essence into the skin is improved, the second through hole is communicated with the flow guide channels, and when the essence flows to the second through hole in the flow guide channels, the essence acts on the second through hole. Essence which is not guided into the skin in time and chippings falling from the skin are sucked and collected through the second through hole, and bidirectional flowing of the bidirectional liquid is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of beauty devices, and particularly to a nozzle with bidirectional liquid flow and a beauty device. Background Art

[0002] With the development of modern society, people's material and economic conditions have been greatly improved. People's pursuit of life has gradually shifted from basic food and clothing, and more attention has been placed on the pursuit of health and beauty. In this development state, skin care problems have gradually become prominent. However, current beauty products only apply essence on the skin surface. Under normal conditions, the pores on the skin are in a closed state, and the applied essence is difficult to penetrate into the deep layer of the skin, resulting in low absorption efficiency of the essence. Summary of the Utility Model

[0003] Based on this, in view of the above problems that occur in the handheld metal can of the beauty device, it is necessary to provide a nozzle with bidirectional liquid flow and a beauty device.

[0004] A nozzle with bidirectional liquid flow of the present application includes a first housing and a second housing. The first housing is connected to the second housing. One end of the first housing away from the second housing forms a diversion end face, and the second housing is used to connect to a handheld housing;

[0005] A first through hole and a second through hole are provided on the diversion end face. The first through hole is used to output essence to the skin, and the second through hole is used to adsorb essence and debris;

[0006] Two diversion channels are provided on the diversion end face. The diversion channels are spiral in shape, and the first through hole can be respectively communicated with the second through hole through the two diversion channels.

[0007] For the nozzle with bidirectional liquid flow disclosed in the first aspect of the present application, two spiral diversion channels are provided on the diversion end face of the first housing and are communicated with the first through hole. Under the diversion action of the two diversion channels, the essence discharged from the first through hole forms two spiral essence action paths, and the essence penetrates deep into the skin in a swirling form to achieve non-invasive deep skin care and improve the efficiency of introducing the essence into the skin. At the same time, by communicating the second through hole with the diversion channel, when the essence flows to the second through hole in the diversion channel, under the action of the power provided by an external pressure source, the essence that has not been timely introduced into the skin or the debris falling from the skin is sucked in through the second through hole and collected. When the nozzle of the present application is combined with a handheld housing, it can collect the debris falling from the skin and the essence that has not been timely introduced into the skin while introducing the essence into the skin. By providing two spiral diversion channels, the introduction efficiency of the essence and the recovery efficiency of the essence bottle and debris are improved.

[0008] In one embodiment, the two diversion channels are centrosymmetric about the first through hole.

[0009] For the bidirectional liquid flow nozzle in the above embodiment, it is further defined that the two diversion channels are centrosymmetric about the center of the first through hole, so that the essence discharged from the first through hole can be evenly distributed to the two diversion channels, thereby forming two spiral essence action paths with almost the same action degree, and then evenly introducing the essence into the skin for repair. At the same time, it is avoided that due to different paths, the conveying speed of the essence in the diversion channel is too fast or too slow, resulting in most of the essence being inhaled and collected at the second through hole, wasting the essence.

[0010] In one embodiment, the number of the second through holes is not less than two, at least one of the second through holes is arranged on each of the diversion channels, and the second through holes are distributed at the tail ends of the diversion channels.

[0011] For the bidirectional liquid flow nozzle in the above embodiment, it is further defined that a second through hole is provided at the tail end of each diversion channel, thereby prolonging the residence time of the essence in the diversion channel, enabling it to contact a larger skin area, and thus improving the skin beautifying effect.

[0012] In one embodiment, a retaining plate and spiral baffles are provided on the diversion end face. The number of the spiral baffles is two. The two spiral baffles are spaced apart from each other and surround the first through hole to form two first diversion sub-channels; the retaining plate is distributed on the periphery of the spiral baffles. The tail ends of the two spiral baffles are respectively connected to the retaining plate. The retaining plate and the two spiral baffles respectively form second diversion sub-channels. The first diversion sub-channels and the second diversion sub-channels are connected to form the diversion channel.

[0013] For the bidirectional liquid flow nozzle in the above embodiment, it is further defined that the diversion channel is composed of a first diversion sub-channel and a second diversion sub-channel. Specifically, the two spiral baffles can be divided into a first spiral baffle and a second spiral baffle. One of the first diversion sub-channels is formed between the inner wall of the first spiral baffle and the outer wall of the second spiral baffle, and the other first diversion sub-channel is formed between the inner wall of the second spiral baffle and the outer wall of the first spiral baffle. The outer walls of the first spiral baffle and the second spiral baffle can also respectively form second diversion sub-channels with the inner wall of the retaining plate, thereby prolonging the length of the diversion channel, prolonging the residence time of the essence in the diversion channel, enabling it to contact a larger skin area, and thus improving the skin beautifying effect.

[0014] In one embodiment, an angle a is formed between the diversion end face and the horizontal direction. The angle a satisfies the relationship: 10° ≤ a ≤ 20°. The plane where the retaining plate and the spiral baffles are located is parallel to the diversion end face.

[0015] For the bidirectional liquid flow nozzle in the above embodiments, it is further defined that the plane where the baffle and the spiral baffle are located is parallel to the diversion end face and parallel to the horizontal direction, so that the front end of the nozzle better fits the skin, and the difficulty for the operator to hold the handheld housing to make the nozzle fit the skin is reduced.

[0016] In one of the embodiments, the height of the spiral baffle on the diversion end face is lower than the height of the baffle on the diversion end face, and the height difference H3 between the spiral baffle and the baffle satisfies the relationship: 0.05 mm ≤ H3 ≤ 1.5 mm.

[0017] For the bidirectional liquid flow nozzle in the above embodiments, it is further defined that the height of the spiral baffle on the diversion end face is lower than the height of the baffle on the diversion end face, so that when the front end of the nozzle fits the skin, a seal is formed between the first through hole, the diversion channel and the second through hole, avoiding the leakage of essence, and at the same time ensuring the adsorption strength of the essence that has not been introduced into the skin and the fallen debris at the second through hole.

[0018] In one of the embodiments, the spiral baffle is divided into a starting section and a working section, and the height of the spiral baffle corresponding to the starting section on the diversion end face is H1, and the size of H1 gradually increases along the direction from the starting section to the working section.

[0019] For the bidirectional liquid flow nozzle in the above embodiments, it is further defined that within the starting section interval of the spiral baffle, its height relative to the diversion end face gradually increases, so that the essence discharged from the first through hole is more likely to enter the diversion channel, thereby improving the smoothness.

[0020] In one of the embodiments, the height of the spiral baffle corresponding to the working section on the diversion end face is constantly H2, and H2 satisfies the relationship: 1 mm ≤ H2 ≤ 1.5 mm.

[0021] For the bidirectional liquid flow nozzle in the above embodiments, it is further defined that the height of the spiral baffle corresponding to the working section on the diversion end face is constant. Specifically, the height of the spiral baffle gradually increases within the starting section interval until the connection between the starting section and the working section, and the height of the spiral baffle remains constant. By setting the height of the spiral baffle within 1 mm to 1.5 mm, the transportation of the essence in the diversion channel is stable, and the contact efficiency between the essence and the skin is high.

[0022] In one of the embodiments, the width of the diversion channel is W1, and W1 satisfies the relationship: 0.6 mm ≤ W1 ≤ 1.5 mm.

[0023] The bidirectional liquid flow nozzle in the above embodiments further defines that the width W1 of the diversion channel is designed within the range of 0.6 mm to 1.5 mm. If the width W1 of the diversion channel is too large, the nozzle is prone to dripping. If the width W1 of the diversion channel is too small, too much essence is likely to remain on the skin. Exemplarily, the width of the diversion channel is 1 mm.

[0024] In one embodiment, the beauty device provided in the second aspect of the present application includes:

[0025] The bidirectional liquid flow nozzle described in any one of the above;

[0026] A first container that contains essence;

[0027] A second container that is used to recycle essence and debris;

[0028] A first pressure source that is respectively connected to the first container and the first through hole through pipelines, and the first pressure source is used to transport the essence in the first container to the first through hole;

[0029] A second pressure source that is respectively connected to the second container and the second through hole through pipelines, and the second pressure source is used to suck in the recycled essence and debris at the second through hole and transport them to the second container;

[0030] A handheld housing, and the bidirectional liquid flow nozzle is arranged on the handheld housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective view of the bidirectional liquid flow nozzle in one embodiment;

[0032] Figure 2 A top view of the bidirectional liquid flow nozzle in one embodiment;

[0033] Figure 3 A sectional view one of the bidirectional liquid flow nozzle in one embodiment;

[0034] Figure 4 A sectional view two of the bidirectional liquid flow nozzle in one embodiment;

[0035] Figure 5 A structural schematic diagram one of the beauty device in one embodiment;

[0036] Figure 6 A structural schematic diagram two of the beauty device in one embodiment.

[0037] REFERENCE NUMERALS:

[0038] 1. Nozzle with bidirectional liquid flow, 2. First container, 3. Second container, 4. First pressure source, 5. Second pressure source, 6. Handheld main unit;

[0039] 11. First housing, 110. Flow guiding end face, 111. Enclosure plate, 112. Spiral baffle, 101. First through hole, 102. Second through hole, 103. Flow guiding channel, 1031. First flow guiding sub-channel, 1032. Second flow guiding sub-channel; 12. Second housing. Detailed implementation

[0040] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of this application described here.

[0042] As Figures 1 to 4 shown, this embodiment provides a nozzle 1 with bidirectional liquid flow, and the nozzle includes:

[0043] A first housing 11 and a second housing 12, the first housing 11 is connected to the second housing 12, a flow guiding end face 110 is formed at one end of the first housing 11 away from the second housing 12, and the second housing 12 is used to be connected to the handheld housing 6;

[0044] A first through hole 101 and a second through hole 102 are provided on the flow guiding end face 110. The first through hole 101 outputs essence to the skin, and the second through hole 102 is used to adsorb essence and debris;

[0045] Two flow guiding channels 103 are provided on the flow guiding end face 110. The flow guiding channels 103 are in a spiral shape, and the first through hole 101 can be respectively communicated with the second through hole 102 through the two flow guiding channels 103.

[0046] Among them, the second housing 12 can be connected to the handheld housing 6. The second housing 12 can be detachably connected to the handheld housing 6 by means of magnetic attraction, threading or buckling, so that the nozzle of this application is used as a disposable consumable. In addition, the first housing 11 and the second housing 12 can be an integrally formed structure.

[0047] The outer shell of the handheld housing 6 can be, but is not limited to, a metal housing or a non-metal housing. For example, the outer shell of the handheld housing 6 is a plastic housing. The shape of the outer shell of the handheld housing 6 can be in a long strip cylindrical structure for easy holding by the operator. Inside the handheld housing 6, a first pressure source 4 for providing power to transport the essence liquid, a second pressure source 5 for providing suction to recover the essence liquid and debris, a first container 2 for containing the essence liquid, and a second container 3 for recovering the essence liquid and debris can be provided. The first pressure source 4 and the second pressure source 5 can be connected to the first through hole 101 and the second through hole 102 respectively through pipelines. Exemplarily, the first pressure source 4 can provide power to transport the essence liquid from the first container 2 to the first through hole 101, and the second pressure source 5 can provide suction to suck the essence liquid not absorbed by the skin or the debris falling from the skin from the second through hole 102 and collect them in the second container 3.

[0048] The first pressure source 4 and the second pressure source 5 can be machines capable of transporting fluids or pressurizing fluids, such as peristaltic pumps, piezoelectric pumps, gear pumps, etc.

[0049] The spiral diversion channels 103 can be used to divert the essence liquid discharged from the first through hole 101 so that the essence liquid forms a vortex shape. Under the diversion action of the two diversion channels 103, the essence liquid discharged from the first through hole 101 forms two spiral essence liquid action paths, improving the efficiency of importing the essence liquid into the skin.

[0050] For the bidirectional liquid flow nozzle 1 in the above embodiment, two spiral diversion channels 103 are provided on the diversion end face 110 of the first housing 11 and are connected to the first through hole 101 through the diversion channels 103. Under the diversion action of the two diversion channels 103, the essence liquid discharged from the first through hole 101 forms two spiral essence liquid action paths, and the essence liquid penetrates deep into the skin in a vortex form to achieve non-invasive deep skin care and improve the efficiency of importing the essence liquid into the skin. At the same time, it is connected to the diversion channels 103 through the second through hole 102. When the essence liquid flows to the second through hole 102 in the diversion channels 103, under the action of the power provided by the external pressure source, the essence liquid not imported into the skin in time or the debris falling from the skin is sucked through the second through hole 102 and collected. The nozzle of the present application, when cooperating with the handheld housing 6, can collect the debris falling from the skin and the essence liquid not imported into the skin in time while importing the essence liquid into the skin. By providing two spiral diversion channels 103, the import efficiency of the essence liquid and the recovery efficiency of the essence bottle and debris are improved.

[0051] As Figure 2 shown, in addition to the features of the above embodiment, this embodiment further defines that the two diversion channels 103 are centrosymmetric about the first through hole 101.

[0052] Based on the fact that the two diversion channels 103 are symmetric about the center of the first through hole 101, the essence discharged from the first through hole 101 can be evenly distributed into the two diversion channels 103, thereby forming two spiral essence action paths with almost the same degree of action, and then evenly introducing the essence into the skin for repair. At the same time, it is possible to avoid the situation where the conveying speed of the essence in the diversion channel 103 is too fast or too slow due to different paths, resulting in most of the essence being inhaled and collected at the second through hole 102, wasting the essence.

[0053] As Figure 1 and Figure 2 shown, in addition to the features of the above embodiments, this embodiment further defines that: the number of the second through holes 102 is not less than two, at least one second through hole 102 is provided on each diversion channel 103, and the second through holes 102 are distributed at the tail end of the diversion channel 103.

[0054] Based on the fact that the second through holes 102 are provided at the tail end of each diversion channel 103, the residence time of the essence on the diversion channel 103 is extended, enabling it to contact a larger skin area, thereby improving the skin beautifying effect.

[0055] Among them, the number of the second through holes 102 at the tail end of each diversion channel 103 is not less than one. For example, one second through hole 102 is provided at the tail end of each diversion channel 103, and the centers of the two second through holes 102 and the first through hole 101 are on the same straight line, so that the conveying path lengths of the essence distributed on the two diversion channels 103 are equal to ensure uniform skin beautifying effect.

[0056] As Figures 1 to 4 shown, in addition to the features of the above embodiments, this embodiment further defines that: a surrounding plate 111 and spiral baffles 112 are provided on the diversion end face 110, the number of the spiral baffles 112 is two, and the two spiral baffles 112 are spaced apart from each other and surround to form two first diversion sub-channels 1031 with the first through hole 101 as the center; the surrounding plate 111 is distributed on the periphery of the spiral baffles 112, the tails of the two spiral baffles 112 are respectively connected to the surrounding plate 111, and the surrounding plate 111 and the two spiral baffles 112 respectively form second diversion sub-channels 1032, and the first diversion sub-channels 1031 are connected to the second diversion sub-channels 1032 to form the diversion channel 103.

[0057] Based on that the diversion channel 103 is composed of a first diversion sub-channel 1031 and a second diversion sub-channel 1032. Specifically, the two spiral baffles 112 can be divided into a first spiral baffle 112 and a second spiral baffle 112. One of the first diversion sub-channels 1031 is formed between the inner wall of the first spiral baffle 112 and the outer wall of the second spiral baffle 112, and the other first diversion sub-channel 1031 is formed between the inner wall of the second spiral baffle 112 and the outer wall of the first spiral baffle 112. The outer walls of the first spiral baffle 112 and the second spiral baffle 112 can also respectively form the second diversion sub-channel 1032 with the inner wall of the shroud 111, thereby extending the length of the diversion channel 103, prolonging the residence time of the essence liquid on the diversion channel 103, enabling it to contact a larger skin area, and thus improving the skin beautifying effect.

[0058] As Figure 3 shown, in addition to the features of the above embodiments, this embodiment further defines that: the diversion end face 110 forms an angle a with the horizontal direction, and the angle a satisfies the relationship: 10° ≤ a ≤ 20°, and the plane where the shroud 111 and the spiral baffle 112 are located is parallel to the diversion end face 110.

[0059] Based on the fact that the plane where the shroud 111 and the spiral baffle 112 are located is parallel to the diversion end face 110 and parallel to the horizontal direction, it enables the front end of the nozzle to better fit the skin, and also reduces the difficulty for the operator to hold the handheld housing 6 to make the nozzle fit the skin.

[0060] As Figure 3 and Figure 4 shown, in addition to the features of the above embodiments, this embodiment further defines that: the height of the spiral baffle 112 on the diversion end face 110 is lower than the height of the shroud 111 on the diversion end face 110, and the height difference H3 between the spiral baffle 112 and the shroud 111 satisfies the relationship: 0.05 mm ≤ H3 ≤ 1.5 mm.

[0061] Based on the fact that the height of the spiral baffle 112 on the diversion end face 110 is lower than the height of the surrounding plate 111 on the diversion end face 110, when the front end of the nozzle fits the skin, a seal is formed between the first through hole 101, the diversion channel 103, and the second through hole 102, avoiding the leakage of the essence liquid and ensuring the adsorption strength of the essence liquid that has not been introduced into the skin and the fallen debris at the second through hole 102. Among them, the height difference between the spiral baffle 112 and the surrounding plate 111 is H3, and the size of H3 satisfies the relationship: 0.05 mm ≤ H3 ≤ 1.5 mm. For example, the size of H3 is 0.1 mm, and the height of the surrounding plate 111 is 0.1 mm higher than the height of the spiral baffle 112. At this time, the adsorption ability of the front end of the nozzle on the skin is better. If the height difference H3 is large, the adsorption ability of the front end of the nozzle on the skin is weak; if the height difference H3 ≤ 0, a seal cannot be formed between the first through hole 101, the diversion channel 103, and the second through hole 102, resulting in the leakage of the essence liquid.

[0062] As Figure 1 and Figure 4 shown, in addition to the features of the above embodiments, this embodiment further defines that the spiral baffle 112 is divided into a starting section and a working section. The height of the spiral baffle 112 corresponding to the starting section on the diversion end face 110 is H1, and the size of H1 gradually increases along the direction from the starting section to the working section.

[0063] Based on the fact that within the starting section interval of the spiral baffle 112, its height relative to the diversion end face 110 gradually increases, making it easier for the essence liquid discharged from the first through hole 101 to enter the diversion channel 103, thereby improving the fluidity.

[0064] As Figure 4 shown, in addition to the features of the above embodiments, this embodiment further defines that the height of the spiral baffle 112 corresponding to the working section on the diversion end face 110 is constantly H2, and H2 satisfies the relationship: 1 mm ≤ H2 ≤ 1.5 mm.

[0065] Based on the fact that the height of the spiral baffle 112 corresponding to the working section on the diversion end face 110 is constant. Specifically, the height of the spiral baffle 112 gradually increases within the starting section interval until the connection between the starting section and the working section, and the height of the spiral baffle 112 remains constant. By setting the height of the spiral baffle 112 within 1 mm - 1.5 mm, the transportation of the essence liquid in the diversion channel 103 is stable, and the contact efficiency between the essence liquid and the skin is high.

[0066] As Figure 3 and Figure 4 shown, in addition to the features of the above embodiments, this embodiment further defines that the width of the diversion channel 103 is W1, and W1 satisfies the relationship: 0.6 mm ≤ W1 ≤ 1.5 mm.

[0067] Based on the width of the diversion channel 103 being designed within the range of 0.6 mm to 1.5 mm, if the width of the diversion channel 103 is too large, the nozzle is prone to dripping. If the width of the diversion channel 103 is too small, there is likely to be too much essence remaining on the skin. Exemplarily, the width of the diversion channel 103 is 1 mm.

[0068] As Figure 5 shown, this embodiment provides a beauty device, including:

[0069] The bidirectional liquid flow nozzle 1 of any one of the above;

[0070] The first container 2, which contains essence;

[0071] The second container 3, which is used to recycle essence and debris;

[0072] The first pressure source 4, which is connected to the first container 2 and the first through hole 101 through pipelines respectively. The first pressure source 4 is used to transport the essence in the first container 2 to the first through hole 101;

[0073] The second pressure source 5, which is connected to the second container 3 and the second through hole 102 through pipelines respectively. The second pressure source 5 is used to inhale the recycled essence and debris at the second through hole 102 and transport them to the second container 3;

[0074] The handheld housing 6, and the bidirectional liquid flow nozzle is arranged on the handheld housing 6.

[0075] Among them, the first container 2, the second container 3, the first pressure source 4, and the second pressure source 5 can all be installed in the handheld housing 6. At this time, the beauty device of the present application can be used as an independent beauty instrument for skin beauty. It should be noted that in other embodiments, as Figure 6 shown, the first container 2, the second container 3, the first pressure source 4, and the second pressure source 5 form a beauty base station. The beauty device of the present application needs to be connected to the beauty base station to realize liquid transportation, so as to achieve skin beautification. In addition, the beauty base station also includes a third container and a fourth container containing different types of essence, and pressure sources for transporting different types of essence, such as a third pressure source, a fourth pressure source, etc.

[0076] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as these technical feature combinations do not conflict, they should all be considered as the scope recorded in this specification.

[0077] The above embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A bidirectional liquid flow nozzle, characterized in that: The invention comprises a first shell (11) and a second shell (12), wherein the first shell (11) is connected to the second shell (12), a flow guide end surface (110) is formed at one end of the first shell (11) away from the second shell (12), and the second shell (12) is used to be connected to a handheld shell (6); The guide end surface (110) is provided with a first through hole (101) and a second through hole (102), wherein the first through hole (101) is used to output the essence to the skin, and the second through hole (102) is used to absorb the essence and debris; Two flow guiding channels (103) are arranged on the flow guiding end surface (110), the flow guiding channels (103) are in a spiral shape, and the first through hole (101) can be connected with the second through hole (102) through the two flow guiding channels (103) respectively.

2. The bidirectional liquid flow nozzle according to claim 1, characterized in that: The two guide channels (103) are centrally symmetrical about the first through hole (101).

3. The bidirectional liquid flow nozzle according to claim 1, characterized in that: The number of the second through holes (102) is not less than two, and each of the flow guiding channels (103) is provided with at least one second through hole (102), and the second through holes (102) are distributed at the rear end of the flow guiding channel (103).

4. The bidirectional liquid flow nozzle according to claim 1, characterized in that: The guide end surface (110) is provided with a shroud (111) and a spiral baffle (112), the number of the spiral baffles (112) being two, and the two spiral baffles (112) are spaced apart from each other and surround each other with the first through hole (101) as the center to form two first guide sub-channels (1031); The enclosure (111) is distributed on the periphery of the spiral baffle (112), the tails of the two spiral baffles (112) are respectively connected to the enclosure (111), the enclosure (111) and the two spiral baffles (112) respectively form a second guide channel (1032), and the first guide channel (1031) and the second guide channel (1032) are connected to form the guide channel (103).

5. The bidirectional liquid flow nozzle according to claim 4, characterized in that: The guide end surface (110) forms an angle a with the horizontal direction, and the angle a satisfies the relationship: 10°≤a≤20°. The plane where the enclosure plate (111) and the spiral baffle (112) are located is parallel to the guide end surface (110).

6. The bidirectional liquid flow nozzle according to claim 4, characterized in that: The height of the spiral baffle (112) on the flow guide end surface (110) is lower than the height of the enclosure (111) on the flow guide end surface (110), and the height difference between the spiral baffle (112) and the enclosure (111) is H3, and H3 satisfies the relationship: 0.05mm≤H3≤1.5mm.

7. The bidirectional liquid flow nozzle according to claim 4, characterized in that: The spiral baffle (112) is divided into a starting section and a working section. The height of the spiral baffle (112) corresponding to the starting section on the flow guide end surface (110) is H1, and the size of H1 gradually increases from the starting section to the working section.

8. The bidirectional liquid flow nozzle according to claim 7, characterized in that: The height of the spiral baffle (112) corresponding to the working section on the flow guide end surface (110) is constant at H2, and H2 satisfies the relationship: 1mm≤H2≤1.5mm.

9. The bidirectional liquid flow nozzle according to any one of claims 4 to 6, characterized in that: The width of the guide channel (103) is W1, and W1 satisfies the relationship: 0.6 mm≤W1≤1.5 mm.

10. A beauty device, characterized in that: include: The bidirectional liquid flow nozzle (1) according to any one of claims 1 to 9 above; A first container (2), wherein the first container (2) contains an essence; a second container (3), the second container (3) being used to recover the essence and debris; a first pressure source (4), the first pressure source (4) being connected to the first container (2) and the first through hole (101) respectively through pipelines, and the first pressure source (4) being used to transport the essence in the first container (2) to the first through hole (101); a second pressure source (5), the second pressure source (5) being connected to the second container (3) and the second through hole (102) through pipelines, the second pressure source (5) being used for sucking the recovered essence and debris at the second through hole (102) and conveying them to the second container (3); A handheld housing (6), wherein the bidirectional liquid flow nozzle is arranged on the handheld housing (6).

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