A mixed liquid output device, a liquid injection device, and a bathtub

Abstract

The application discloses a mixed liquid output device, a liquid injection device and a bathtub. The mixed liquid output device is provided with a containing cavity and a flow channel. The containing cavity is used for containing oil paste substances and is provided with a vent. The flow channel is provided with a narrowing section and a communication port. The narrowing section is formed between a liquid inlet and a liquid outlet. The communication port is communicated with the containing cavity and is located at the narrowing section or downstream of the narrowing section. The liquid injection device and the bathtub adopt the mixed liquid output device. The above technical scheme increases the liquid flow rate through the narrowing section, reduces the pressure, accelerates the outflow of the oil paste substances by using the Venturi effect and the Bernoulli principle, and thus can directly output mixed water mixed with the oil paste substances, so that the user is not easy to be scalded.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of liquid output devices and bathing devices, in particular to a mixed liquid output device, a liquid injection device and a bathtub. BACKGROUND

[0002] In the prior art, the oil paste-like bath material is generally directly put into the water in the bathing cavity of the bathtub. At this time, the bathing material is dispersed slowly and has a small amount of foam. Some users also hold the oil paste-like bath material in their hands and place it below the water outlet end of the bathtub faucet to allow the water to wash the bath material, thereby improving the dispersibility. However, if the solubility and dispersibility are to be improved, a higher water temperature is required, and therefore the user is easily scalded. SUMMARY

[0003] The present application aims to overcome the above-mentioned defects or problems in the background art and provide a mixed liquid output device, a liquid injection device and a bathtub. The mixed liquid output device can directly output mixed water mixed with oil paste-like substances, the user is no longer easily scalded, and further, has a higher dispersibility compared to directly putting into water.

[0004] To achieve the above-mentioned purpose, the following technical solutions are adopted:

[0005] The first technical solution relates to a mixed liquid output device, which is provided with a cavity for accommodating an oil paste-like substance with fluidity and a vent for communicating with the atmosphere to facilitate the flow of the oil paste-like substance from the cavity; and a flow channel provided with a liquid inlet, a liquid outlet, a narrowed section and a communication port, the liquid inlet is used to introduce a flowing liquid, the liquid outlet is used to output a mixed liquid, the narrowed section is formed between the liquid inlet and the liquid outlet, and the communication port communicates with the cavity and is located downstream of the narrowed section or the narrowed section.

[0006] The second technical solution is based on the first technical solution, wherein the flow channel includes a liquid passing channel and a mixed liquid chamber located downstream of the liquid passing channel, the liquid inlet, the narrowed section and the communication port are all formed in the liquid passing channel, the liquid passing channel communicates with the mixed liquid chamber through an injection port, and the mixed liquid chamber communicates with the liquid outlet.

[0007] The third technical solution is based on the second technical solution, wherein the cavity is arranged around the liquid passing channel, and the cross section of the narrowed section is annular with gradually increasing inner circumference and gradually decreasing cross-sectional area along the flow direction of the liquid.

[0008] The fourth technical solution is based on the third technical solution, wherein the injection port is directed towards a lower cavity wall of the mixed liquid chamber.

[0009] The fifth technical solution is based on the fourth technical solution, wherein the inner surface of the lower cavity wall is inclined to allow the mixed liquid injected from the injection port to at least partially rebound against an upper cavity wall opposite the lower cavity wall.

[0010] The sixth technical solution is based on the fifth technical solution, wherein the inner surface of the upper cavity wall is concave upward, and the outer surface of the upper cavity wall forms the inner surface of the narrowed section.

[0011] The seventh technical solution is based on any one of the first to sixth technical solutions, and comprises a liquid passing assembly and a containing assembly which are detachably fixed to each other; the liquid inlet is formed in the liquid passing assembly, which is used to introduce flowing liquid and deliver it to the containing assembly; the narrowed section, the communication port and the liquid outlet are all formed in the containing assembly, the air vent is formed in the containing assembly or formed by cooperation of the containing assembly and the liquid passing assembly, and the containing assembly is provided with a containing groove which is provided with an opening; when the containing assembly is detached from the liquid passing assembly, the opening is opened to allow injection of the ointment-like substance into the containing groove, and when the containing assembly is fixed to the liquid passing assembly, the opening is closed by the liquid passing assembly and forms the containing cavity.

[0012] The eighth technical solution is based on the seventh technical solution, wherein the liquid passing assembly is provided with a universal ball head rotary connection structure.

[0013] The ninth technical solution relates to a liquid injection device, which comprises a liquid outlet device and the mixed liquid output device according to any one of the first to eighth technical solutions, and the mixed liquid output device is connected to the liquid outlet device so that the liquid inlet can introduce flowing liquid from the liquid outlet device.

[0014] The tenth technical solution relates to a bathtub, which comprises a bathtub body provided with a bathing cavity, and further comprises the liquid injection device according to the ninth technical solution, wherein the liquid outlet device is fixed to the bathtub body, and the liquid outlet is directed toward the bathing cavity.

[0015] Compared with the prior art, the above-mentioned solutions have the following beneficial effects:

[0016] In the first technical solution, the containing cavity for containing the ointment-like substance with fluidity is provided with an air vent for communicating with the atmosphere, so that the atmospheric pressure can act on the ointment-like substance. The communication port for communicating the containing cavity with the flow channel is located in the narrowed section of the flow channel or downstream of the narrowed section, which can accelerate the flow of the ointment-like substance out of the containing cavity. Specifically, by providing the narrowed section, the liquid flow velocity in the flow channel is increased, and according to Bernoulli's principle, the liquid flow velocity increases and the pressure decreases, so that the ointment-like substance can flow out at a faster speed. Thus, mixed water mixed with the ointment-like substance can be output, and the user is no longer easy to be scalded.

[0017] In the second technical solution, the mixing chamber is arranged downstream of the liquid passage, so that the flowing liquid and the oil paste can be more fully mixed in the mixing chamber before being output. Compared with directly putting the oil paste into water with little flow, the dispersibility of the oil paste can be improved.

[0018] In the third technical solution, the cavity is arranged around the liquid passage, so that the volume of the oil paste can be increased in the limited volume of the mixing liquid output device. The cross section of the narrowing section is annular with gradually increasing inner circumference and gradually decreasing cross-sectional area along the flow direction of the liquid. Compared with the classic Venturi tube with gradually decreasing diameter, the liquid flow rate can be increased in a larger range, so that the inner wall of the cavity can be arranged with the communication ports in the circumferential direction, thereby significantly increasing the mixing position of the flowing liquid and the oil paste, so that the oil paste can be mixed faster and is more beneficial to dispersion after being injected into the bathtub.

[0019] In the fourth technical solution, the liquid injection port is directed to the lower cavity wall of the mixing chamber, so that the mixed liquid entering the mixing chamber from the liquid injection port can hit the lower cavity wall, so that the liquid and the oil paste can be more easily dispersed and more fully mixed by the hitting.

[0020] In the fifth technical solution, the inner surface of the lower cavity wall is arranged to be inclined, so that the mixed liquid hitting the lower cavity wall can at least partially rebound to the upper cavity wall to be hit again, so that the liquid droplets and oil droplets can be broken and made smaller, the mixed liquid can be more fully mixed, and the oil paste can be more easily dispersed.

[0021] In the sixth technical solution, the inner surface of the upper cavity wall is concave upward, so that the mixed liquid hitting the upper cavity wall can rebound and hit back and forth in the concave part, so that smaller liquid droplets and oil droplets can be obtained, and thus the mixing is more sufficient and the oil paste is more easily dispersed. The outer surface of the upper cavity wall forms the inner surface of the narrowing section, so that the upper cavity wall of the mixing chamber not only has the above-mentioned effects, but also can be used to construct the narrowing section, so that the structure of the mixing liquid output device is more simple.

[0022] In the seventh technical solution, when the accommodating assembly is detached from the liquid passage assembly, the opening of the accommodating groove is opened, and the user can inject the oil paste. This not only facilitates the user to use it repeatedly, but also facilitates the user to disassemble and clean it after use.

[0023] In the eighth technical solution, the liquid passage assembly is provided with a universal ball head rotating connection structure, so that the mixing liquid output device can switch the included angle between the mixing liquid output direction and the water surface in the bathtub when injecting the mixed liquid into the bathtub. When the included angle becomes an acute angle, the amount of air mixed when the mixed liquid is injected into the water surface increases, and the amount of foam generated is larger.

[0024] The ninth and tenth technical solutions adopt the mixed liquid output device described above, and thus have corresponding technical effects. In addition, when the ninth and tenth technical solutions adopt the mixed liquid output device of the seventh technical solution, the liquid passing assembly is still attached to the output end of the liquid output device after the containing assembly is removed, but does not affect the function of the liquid output device. When the ninth and tenth technical solutions adopt the mixed liquid output device of the eighth technical solution, the universal ball head connecting structure of the liquid passing assembly can still have the function of switching the direction of the output water flow after the containing assembly is removed. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments, the following briefly introduces the drawings needed to be used:

[0026] Figure 1 Fig. 1 is a perspective view of a mixed liquid output device in an embodiment;

[0027] Figure 2 Fig. 2 is an exploded perspective view of the mixed liquid output device in the embodiment;

[0028] Figure 3 Fig. 3 is an A-A sectional view of the mixed liquid output device in the embodiment; Figure 1

[0029] Fig. 4 is a perspective view of an upper cover in the embodiment; Figure 4

[0030] Fig. 5 is a perspective view of a containing part in the embodiment; Figure 5

[0031] Fig. 6 is a perspective view of a necking part in the embodiment; Figure 6

[0032] Fig. 7 is a side view of a liquid injection device in the embodiment; Figure 7

[0033] Fig. 8 is a perspective view of a bathtub in the embodiment. Figure 8 MAIN REFERENCE NUMERALS EXPLANATION

[0034]

[0035] ​1, mixed liquid output device; 2, liquid passing assembly; 3, containing assembly; 4, connecting piece; 5, universal ball head rotary connection structure; 6, upper cover; 7, liquid passing piece; 8, liquid inlet; 9, first compression ring; 10, first snap ring; 11, first compression sleeve; 12, double ball head connecting rod; 13, second compression ring; 14, second snap ring; 15, second compression sleeve; 16, through hole; 17, groove; 18, protrusion; 19, liquid passing opening; 20, liquid passing cavity; 21, containing piece; 22, narrowing piece; 23, liquid outlet piece; 24, connecting part; 25, helical groove; 26, anti-skid part; 27, center hole; 28, containing groove; 29, opening; 30, containing cavity; 31, vent; 32, communication opening; 33, protruding part; 34, edge part; 35, liquid injection opening; 36, narrowing section; 37, liquid passing channel; 38, liquid outlet opening; 39, mixed liquid cavity; 40, flow channel; 41, lower cavity wall; 42, upper cavity wall; 43, liquid injection device; 44, liquid outlet device; 45, bathtub; 46, bathtub body; 47, bathing cavity; 48, top wall; L, liquid flow. DETAILED DESCRIPTION

[0036] In the claims and specification, the terms "first", "second", or "third" and the like, are used merely to distinguish different objects, and are not used to describe a particular sequential order, unless otherwise specified.

[0037] In the claims and specification, the term "fixedly connected" or "fixed connection" is to be interpreted broadly, i.e. any connection mode between the two objects without displacement relationship and relative rotation relationship, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0038] In the claims and specification, the terms "including", "having" and their variants mean "including but not limited to", unless otherwise specified.

[0039] In the claims and specification, the term "provided with" means that the technical feature located after it is part of the technical feature located before it, unless otherwise specified.

[0040] In the claims and specification, the term "narrowing section" refers to a section in the flow channel that has the following characteristics: the liquid passing area of the input end of the section is larger than the liquid passing area of the output end of the section; in particular, it also refers to the section in the flow channel, along the direction of liquid flow, the liquid passing area gradually decreases.

[0041] In the claims and specification, the term "ointment-like substance" refers to a substance that has fluidity, but the fluidity is less than that of water.

[0042] In the claims and specification, the term "downstream" means, unless otherwise defined, a position further away from the liquid inlet end and closer to the liquid outlet end in the direction of liquid flow.

[0043] In the claims and specification, the term "mixing chamber communicates with the liquid outlet" means, unless otherwise defined, not only the case that the liquid outlet is not located in the mixing chamber but communicates with the mixing chamber, but also the case that the liquid outlet is the outlet of the mixing chamber.

[0044] In the claims and specification, the term "the containment chamber is disposed around the liquid passage" means, unless otherwise defined, not only the case that the containment chamber is disposed around the entire liquid passage in the direction of liquid flow, but also the case that the containment chamber is disposed around only part of the liquid passage in the direction of liquid flow, and also the case that the containment chamber is disposed not only around part of the liquid passage but also around the entire or part of the mixing chamber in the direction of liquid flow; at the same time, the containment chamber can be disposed completely around the liquid passage or partially around the liquid passage.

[0045] In the claims and specification, the term "cross section" means, unless otherwise defined, a section perpendicular to the direction of liquid flow.

[0046] In the claims and specification, the term "inner circumference" means, unless otherwise defined, the circumference of the inner circle of an annular shape.

[0047] In the claims and specification, the term "annular" means, unless otherwise defined, any shape having an inner circle and an outer circle in a plane and the outer circle surrounding the inner circle, and should not be construed as a circular ring shape.

[0048] In the claims and specification, the term "down" means, unless otherwise defined, the direction of liquid outlet of the liquid outlet, the term "up" means, unless otherwise defined, the direction away from the direction of liquid outlet of the liquid outlet, the term "up" means, unless otherwise defined, the position further away from the liquid outlet in the direction of liquid outlet of the liquid outlet, and the term "down" means, unless otherwise defined, the position closer to the liquid outlet in the direction of liquid outlet of the liquid outlet.

[0049] In the claims and specification, the term "inner surface of the upper chamber wall" means, unless otherwise defined, the surface of the upper chamber wall constituting the boundary of the mixing chamber, the term "outer surface of the upper chamber wall" means, unless otherwise defined, the surface of the upper chamber wall facing away from the inner surface, and the term "inner surface of the narrowing section" means, unless otherwise defined, the surface of which the cross section forms an inner circle of an annular shape.

[0050] In the claims and specification, the term "the liquid injection port is directed toward the lower chamber wall of the mixing chamber" means, unless otherwise defined, that as long as any straight line passing through the liquid injection port intersects the lower chamber wall of the mixing chamber in the direction of liquid flow, the liquid injection port and the lower chamber wall should be considered to meet the "the liquid injection port is directed toward the lower chamber wall of the mixing chamber".

[0051] In the claims and specification, unless otherwise defined, the term "inclinedly arranged inner surface of the lower cavity wall" means that in any cross section of the liquid inlet port to the lower cavity wall, at least one intersection formed by the cross section and the inner surface of the lower cavity wall has a tangent that is neither parallel nor perpendicular to the extension direction of the liquid inlet port.

[0052] In the claims and specification, unless otherwise defined, the term "upper cavity wall opposite to the lower cavity wall" should not be interpreted restrictively as the upper cavity wall needs to be directly opposite to the lower cavity wall.

[0053] In the claims and specification, unless otherwise defined, the term "universal ball head rotary connection structure" means any structure that has a spherical rotary function of one object relative to another object.

[0054] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings.

[0055] Referring to Figures 1 to 3 , Figures 1 to 3 A mixed liquid output device 1 in an embodiment is shown. As Figure 1 shown, the mixed liquid output device 1 includes a liquid passing assembly 2 and a containing assembly 3.

[0056] As Figure 2 shown, the liquid passing assembly 2 includes a connecting piece 4, a universal ball head rotary connection structure 5, an upper cover 6 and a liquid passing piece 7.

[0057] As Figure 2 shown, the connecting piece 4 is annular, and the hollow part forms a liquid inlet port 8 for introducing flowing liquid. The connecting piece 4 is provided with two layers of external threads in the up-down direction, and the upper layer of external threads is used for screwing with the internal threads of the liquid outlet end of the liquid outlet device 44 (not shown in the figure), so as to detachably connect the connecting piece 4 and the entire liquid passing assembly 2 to the liquid outlet end of the liquid outlet device 44 to introduce flowing liquid from the liquid outlet device 44.

[0058] As Figure 2 shown, the universal ball head connection structure 5 includes a first compression ring 9, a first clamping ring 10, a first compression sleeve 11, a double ball head connecting rod 12, a second compression ring 13, a second clamping ring 14 and a second compression sleeve 15. The double ball head connecting rod 12 is provided with a through hole 16 in the up-down direction, and has an upper ball head, a lower ball head and a connecting rod connected as one body. As Figure 3As shown, the first pressure ring 9 is adapted to press against the upper ball head from top to bottom and is pressed downward by the connecting member 4. The first retaining ring 10 has a notch, so that the first retaining ring 10 can be deformed and fitted onto the connecting rod to press against the upper ball head from bottom to top. The first pressure sleeve 11 presses against the first retaining ring 10 upward. The upper end of the first pressure sleeve 11 is provided with an internal thread, which is screwed into the lower external thread of the connecting member 4 to connect the connecting member 4 and the upper ball head of the double ball head connecting rod 12 together, so that the upper ball head can establish a relative spherical rotation relationship with the connecting member 4. The second pressure ring 13 is adapted to press against the lower ball head from bottom to top. The second retaining ring 14 has a notch, so that the second retaining ring 14 can be deformed and fitted onto the connecting rod to press against the lower ball head from top to bottom. The second pressure sleeve 15 is adapted to press against the second retaining ring 14 from top to bottom. The lower end of the second pressure sleeve 15 is provided with an external thread.

[0059] like Figure 2 As shown, the upper end of the top cover 6 has a groove 17. Figure 3 As shown, the groove 17 is provided with an internal thread, which is screwed into the external thread of the second pressure sleeve 15 to connect the double ball head connecting rod 12 to the upper cover 6, so that the lower ball head can establish a relative spherical rotation relationship with the upper cover 6.

[0060] See Figure 4 , Figure 4 The top cover 6 in the embodiment is shown. Figure 4 As shown, the upper cover 6 has a downwardly extending annular wall, and the inner wall surface of the annular wall is provided with a number of protrusions 18 arranged circumferentially. The groove 17 of the upper cover 6 communicates with the area enclosed by the annular wall of the upper cover 6.

[0061] like Figure 3 As shown, the liquid-passing component 7 is provided with a liquid-passing port 19. The liquid-passing component 7 is detachably fixed to the upper cover 6 by screws. The liquid-passing component 7 and the upper cover 6 enclose a liquid-passing cavity 20, and the liquid-passing port 19 is connected to the liquid-passing cavity 20.

[0062] like Figure 2 As shown, the accommodating component 3 includes an accommodating member 21, a narrowing member 22, and a liquid outlet member 23.

[0063] See Figure 5 , Figure 5 The receiving element 21 in the embodiment is shown. Figure 5 As shown, the upper outer edge of the accommodating member 21 is provided with a connecting portion 24, and the outer wall of the connecting portion 24 is provided with a plurality of spiral grooves 25 adapted to connect with the protrusion 18. By rotating the accommodating member 21, the protrusion 18 is adapted to slide spirally along the spiral grooves 25 to the bottom of the grooves, thereby realizing the connection between the upper cover 6 and the accommodating member 21. The outer surface of the accommodating member 21 is also provided with an anti-slip portion 26. In this embodiment, the anti-slip portion 26 is provided with a plurality of anti-slip grooves extending in the vertical direction and evenly distributed in the circumferential direction. In other embodiments, the anti-slip portion 26 can also be provided as embossed or covered with rubber, etc.Figure 5 and Figure 3 As shown in FIG. 2, the accommodating member 21 is provided with a central hole 27 and an accommodating groove 28 surrounding the central hole 27. The top end of the accommodating groove 28 is provided with an opening 29 for a user to inject a flowable ointment-like substance into the accommodating groove 28. When the accommodating member 21 is connected to the upper cover 6, the central hole 27 is in communication with the liquid passing port 19, and the liquid passing member 7 closes the opening 29 and forms a cavity 30 for accommodating the ointment-like substance. When the accommodating member 21 is detached from the upper cover 6, the opening 29 is opened to allow the ointment-like substance to be injected into the accommodating groove 28. The outer side wall of the cavity 30 is provided with at least one air vent 31 at the upper portion, which is used to communicate with the atmosphere to facilitate the flow of the ointment-like substance out of the cavity 30. In other embodiments, the air vent 31 can also be formed by the cooperation of the upper cover 6 and the accommodating member 21. The bottom end of the central hole 27 is provided with a communication port 32, which penetrates the inner side wall of the cavity 30, so that the communication port 32 communicates the central hole 27 and the cavity 30.

[0064] Referring to Figure 6 , Figure 6 The narrowing member 22 in the embodiment is shown. As shown in Figure 6 , the narrowing member 22 is provided with a protruding portion 33 in the middle and an edge portion 34 at the edge, and the inner side of the edge portion 34 is provided with a plurality of liquid injection ports 35 arranged circumferentially. As shown in Figure 3 , the protruding portion 33 is conical and protrudes upward, which is adapted to protrude upward into the central hole 27 and beyond the communication port 32. The outer surface of the protruding portion 33 and the hole wall of the central hole 27 form a narrowing section 36, which is annular in cross-section and gradually increases in inner circumference and gradually decreases in cross-sectional area from top to bottom along the liquid flow direction, so that when the liquid flows through the narrowing section, a Venturi effect is formed, the flow rate increases, and according to Bernoulli's principle, the pressure at the communication port 32 decreases. The ointment-like substance contained in the cavity 30 can flow out of the cavity 30 more quickly under the action of atmospheric pressure and gravity and flow downward from the liquid injection port 35 after mixing with the liquid flow. In the embodiment, the communication port 32 is located in the narrowing section 36. In other embodiments, the communication port 32 can also be located downstream of the narrowing section 36.

[0065] As shown in Figure 3 , in the embodiment, the liquid inlet port 8, the through hole 16, the liquid passing cavity 20, the liquid passing port 19, the central hole 27 and the liquid injection port 35 are in communication and form a liquid passing channel 37. The narrowing section 36 is part of the liquid passing channel 37.

[0066] As shown in Figure 3As shown, the liquid outlet 23 is screwed to the receiving member 21, and when the liquid outlet 23 and the receiving member 21 are screwed together, the narrowing member 22 is sandwiched between them. The liquid outlet 23 is provided with a liquid outlet 38, which serves as the output end of the mixed water output device 1 for outputting the mixed liquid. The liquid outlet 23 and the narrowing member 22 together form a mixing chamber 39. The mixing chamber 39 is connected to the liquid channel 37 through the liquid injection port 35, so that the mixing chamber 39 is located downstream of the liquid channel 37. The mixing chamber 39 is used to fully mix the flowing liquid with the ointment-like substance. The liquid channel 37, the mixing chamber 39 and the liquid outlet 38 together form a flow channel 40. In this embodiment, the liquid injection port 35 faces the lower cavity wall 41 of the mixing chamber 39. The inner surface of the lower cavity wall 41 is inclined so that the mixed liquid injected from the liquid injection port 35 at least partially bounces towards the upper cavity wall 42 opposite to the lower cavity wall 41. In this embodiment, the inner surface of the middle part of the upper cavity wall 42 is formed by the inner surface of the protrusion 33 of the narrowing member 22, which is conical and concave upward.

[0067] like Figure 3 As shown in the diagram, liquid flows from inlet 8 through through-hole 16, through-hole 20, and through-hole 19 into central hole 37 and then through narrowing section 36. Due to the Venturi effect, the flow velocity increases at connecting port 32. Based on Bernoulli's principle, the pressure of the liquid flow decreases at this point, causing the oily substance in cavity 30 to flow out of cavity 30 more quickly. After mixing with the liquid to form a mixture, it is injected into mixing chamber 39 through injection port 35. After being injected into mixing chamber 39, the mixture impacts the inner surface of lower cavity wall 41. Due to the inclination of the inner surface of lower cavity wall 41, it bounces back to the upwardly concave inner surface of upper cavity wall 42 and repeatedly impacts the inner surface of upper cavity wall 42 before being output through outlet 38. In mixing chamber 39, the mixture becomes more fragmented and the droplets become smaller through continuous impact, resulting in more thorough mixing and better dispersion of the liquid and oily substance.

[0068] See Figure 7 , Figure 7 The liquid injection device 43 in this embodiment is shown. For example... Figure 7 As shown, the liquid injection device 43 includes a liquid outlet device 44 and a mixed liquid output device 1 in this embodiment. In this embodiment, the liquid outlet device 44 is a faucet. The external thread of the connector 4 is screwed into the internal thread of the water outlet end of the liquid outlet device 44, so that the mixed liquid output device 1 is detachably connected to the liquid outlet device 44, and the liquid inlet 8 can introduce flowing liquid from the water outlet end of the liquid outlet device 44.

[0069] See Figure 8 , Figure 8 The bathtub 45 in this embodiment is shown. Figure 8 As shown, the bathtub 45 includes a bathtub body 46 and a liquid injection device 43 in this embodiment. The bathtub body 46 is provided with a bathing cavity 47 and a top wall 48. The liquid outlet device 44 is fixed to the top wall 48, with the outlet 38 facing the bathing cavity 47.

[0070] When the user wants to add the oil paste bath to the bathing cavity 47, first reverse rotation of the containing member 21, the containing assembly 3 and the liquid passing assembly 2 are separated, the user can inject the oil paste bath from the opening 29 into the containing groove 28, and then rotate the containing member 21, so that the containing assembly 3 and the liquid passing assembly 2 are connected. Open the liquid outlet device 44, let the flowing water into the mixed liquid output device 1, and inject the mixed liquid of water and bath into the bathing cavity 47. If the user wants more bubbles, you can turn the spherical cover 6, so that the liquid injection port 38 is inclined to the water surface of the bathing cavity 47, so as to form more bubbles. After the user uses it, the containing member 21 can be reversed again to separate the containing assembly 3 and the liquid passing assembly 2, so as to facilitate the cleaning of the containing assembly 3. At this time, the liquid passing assembly 2 is still connected with the water outlet end of the liquid outlet device 44, which does not hinder the water outlet and can be used as a shower head.

[0071] In this embodiment, the cavity 30 for containing the oil paste material with fluidity is provided with a vent 31 connected to the atmosphere, so that the atmospheric pressure can act on the oil paste material. The communication port 32 of the cavity 30 communicating with the flow channel 40 is located at the narrowed section 36 of the flow channel 40 or downstream of the narrowed section 36, which can accelerate the flow of the oil paste material from the cavity 30, so as to output the mixed water mixed with the oil paste material, and the user is no longer easy to be scalded.

[0072] In this embodiment, the cavity 30 is arranged around the liquid passing channel 37, which can increase the volume of the oil paste material in the limited volume of the mixed liquid output device 1. The cross section of the narrowed section 36 is annular with gradually increasing inner circumference and gradually decreasing cross section along the flow direction of the liquid, which can make the range of liquid flow velocity increase larger than that of the classic venturi with gradually decreasing diameter, so that the inner wall of the cavity 30 can be arranged with the communication port 32 along the circumference, thereby significantly increasing the mixing position of the flowing liquid and the oil paste material, so that the oil paste material can be mixed faster, and it is also more beneficial to disperse after being injected into the bathing cavity 47.

[0073] In this embodiment, the liquid and the oil paste are mixed more fully in the mixing chamber 39, and the dispersion of the oil paste is improved compared with directly putting the oil paste into water that hardly flows. The mixed liquid entering the mixing chamber 39 from the liquid injection port 35 hits the lower cavity wall 41, so that the liquid and the oil paste are more easily dispersed and mixed. The inner surface of the lower cavity wall 41 is inclined, so that the mixed liquid hitting the lower cavity wall 41 is bounced at least partially to the upper cavity wall 42 for secondary hitting, so that the liquid and oil droplets are broken into smaller ones, and the mixed liquid is mixed more fully, and the oil paste is more easily dispersed. The inner surface of the upper cavity wall 42 is concave upward, so that the mixed liquid hitting the upper cavity wall 42 is bounced and hit back and forth in the concave part, so that the liquid and oil droplets are broken into smaller ones, and the mixed liquid is mixed more fully, and the oil paste is more easily dispersed. The outer surface of the upper cavity wall 42 forms the inner surface of the narrowing section 36, so that the upper cavity wall 42 of the mixing chamber 39 not only has the above-mentioned effects, but also is used to construct the narrowing section 36, so that the structure of the mixed liquid output device 1 is simpler.

[0074] In this embodiment, when the accommodating assembly 3 is detached from the liquid passing assembly 2, the opening 29 of the accommodating groove 28 is opened, and the user can inject the oil paste. This not only facilitates the user to use it repeatedly, but also facilitates the user to disassemble and clean it after use.

[0075] In this embodiment, the universal ball head rotating connection structure 5 is provided, so that the mixed liquid output device 1 can switch the included angle between the mixed liquid output direction and the water surface when injecting the mixed liquid into the bathing cavity 47. When the included angle becomes an acute angle, the mixed liquid injects into the water surface, and the mixed air increases, and the amount of generated foam is larger.

[0076] In this embodiment, the liquid injection device 43 is detached from the accommodating assembly 3, and the liquid passing assembly 2 is still attached to the water outlet end of the liquid outlet device 44, but does not affect the function of the liquid outlet device 44. When the liquid injection device 43 is used in the bathtub 45, the universal ball head connection structure 5 of the liquid passing assembly 2 can still have the function of switching the direction of the output water flow after the accommodating assembly 3 is detached.

[0077] The above description of the specification and the embodiments is used to explain the protection scope of the present application, but does not constitute a limitation on the protection scope of the present application.

Claims

1. A mixture output device, characterized in that it comprises: A cavity (30) for containing a fluid ointment-like substance and having a vent (31) for connecting to the atmosphere to facilitate the flow of the ointment-like substance out of the cavity (30); and The flow channel (40) is provided with an inlet (8), an outlet (38), a narrow section (36) and a connecting port (32). The inlet (8) is used to introduce flowing liquid, the outlet (38) is used to output the mixture, the narrow section (36) is formed between the inlet (8) and the outlet (38), and the connecting port (32) connects to the cavity (30) and is located in or downstream of the narrow section (36). The flow channel (40) includes a liquid passage (37) and a mixing chamber (39) located downstream of the liquid passage (37). The inlet (8), the narrow section (36) and the connecting port (32) are all formed in the liquid passage (37). The liquid passage (37) is connected to the mixing chamber (39) through the injection port (35). The mixing chamber (39) is connected to the outlet (38). The cavity (30) is arranged around the liquid passage (37), and the cross-section of the narrow section (36) is an annular shape with an increasing inner circumference and a decreasing cross-sectional area along the direction of liquid flow.

2. The mixed liquid output device as described in claim 1, characterized in that, The injection port (35) faces the lower cavity wall (41) of the mixing chamber (39).

3. The mixed liquid output device as described in claim 2, characterized in that, The inner surface of the lower cavity wall (41) is inclined so that the mixture injected from the injection port (35) bounces at least partially toward the upper cavity wall (42) opposite to the lower cavity wall (41).

4. The mixed liquid output device as described in claim 3, characterized in that, The inner surface of the upper cavity wall (42) is concave upward, and the outer surface of the upper cavity wall (42) forms the inner surface of the narrowed section (36).

5. A mixture output device as claimed in any one of claims 1 to 4, characterized in that, It includes a liquid-passing assembly (2) and a receiving assembly (3) that are detachably fixed to each other; the liquid inlet (8) is formed in the liquid-passing assembly (2), which is used to introduce flowing liquid and deliver it to the receiving assembly (3); the narrowing section (36), the connecting port (32), and the liquid outlet (38) are all formed in the receiving assembly (3); the vent (31) is formed in the receiving assembly (3) or is formed by the receiving assembly (3) and the liquid outlet (38). The liquid transfer assembly (2) is formed in conjunction with the receiving assembly (3), which has a receiving groove (28) and an opening (29). When the receiving assembly (3) is removed from the liquid transfer assembly (2), the opening (29) is opened to allow the injection of ointment-like substances into the receiving groove (28). When the receiving assembly (3) is fixed to the liquid transfer assembly (2), the opening (29) is closed by the liquid transfer assembly (2) and forms the cavity (30).

6. The mixed liquid output device as described in claim 5, characterized in that, The liquid transfer assembly (2) is provided with a universal ball joint rotating connection structure (5).

7. A liquid injection device, characterized in that, It includes a liquid outlet device (44) and a mixture output device (1) as claimed in any one of claims 1 to 6, wherein the mixture output device (1) is detachably connected to the liquid outlet device (44) so ​​that the liquid inlet (8) can introduce flowing liquid from the liquid outlet device (44).

8. A bathtub comprising a bathtub body (46) having a bathing cavity (47), characterized in that, It also includes the liquid injection device (43) as described in claim 7, the liquid outlet device (44) being fixed to the bathtub body (46), and the liquid outlet (38) facing the bathing cavity (47).

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