Liquid filling device

Abstract

The utility model relates to a kind of liquid filling devices, comprising: shell assembly, including shell body, first connecting part and second connecting part, first connecting part and second connecting part are respectively set on shell body, shell body is equipped with mounting cavity, first connecting part is used to install with liquid mother bottle adaptation, second connecting part is used to install with subpack bottle adaptation;Infusion assembly, including electric pump and pipeline assembly set in mounting cavity, the input end of pipeline assembly is communicated liquid mother bottle, the output end of pipeline assembly is communicated subpack bottle, electric pump is used to drive the liquid in liquid mother bottle into subpack bottle by pipeline assembly. The liquid filling device of the application, its first connecting part and second connecting part can be respectively installed with liquid mother bottle and subpack bottle adaptation, whereby liquid filling device and subpack bottle can be stably arranged on liquid mother bottle and utilize pipeline assembly to communicate liquid mother bottle and subpack bottle, when liquid filling, user can free both hands, and liquid filling operation can be completed by the work of electric pump.

Description

Technical Field

[0001] This utility model relates to the field of liquid dispensing machine technology, and in particular to a liquid filling device. Background Technology

[0002] Perfume is a liquid mixture of essential oils, fixatives, alcohol, and ethyl acetate, which emits a pleasant fragrance and is an important cosmetic. In daily use, many perfume master bottles are too large for users to carry, necessitating the dispensing of perfume into smaller bottles. However, spillage is common during the dispensing process, leading to waste. To address this issue, existing technology includes a dispensing bottle with a bottom-filling structure. This structure connects to the dispensing device on the master bottle, allowing for manual dispensing of perfume from the master bottle into the smaller bottles. However, this method requires the user to hold the bottle and press repeatedly, which is cumbersome, time-consuming, and laborious, potentially degrading the user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a filling device to address the problem that users need to hold the dispensing bottle and press it multiple times to fill the liquid, which is cumbersome, time-consuming and laborious.

[0004] A liquid filling device includes: a housing assembly comprising a housing body, a first connecting portion, and a second connecting portion, the first connecting portion and the second connecting portion being respectively disposed on the housing body; the housing body having an installation cavity; the first connecting portion having a first opening; the second connecting portion having a second opening; the installation cavity communicating with the first opening and the second opening respectively; the first connecting portion being adapted for installation with a liquid mother bottle; and the second connecting portion being adapted for installation with a dispensing bottle; and an infusion assembly comprising an electric pump and a tubing assembly, the electric pump and the tubing assembly being disposed in the installation cavity; the input end of the tubing assembly communicating with the liquid mother bottle via the first opening; and the output end of the tubing assembly communicating with the dispensing bottle via the second opening; the electric pump being used to drive liquid in the liquid mother bottle to enter the dispensing bottle through the tubing assembly.

[0005] This application provides a liquid filling device, including a housing assembly and a liquid delivery assembly disposed in the housing assembly. The housing assembly has a first connecting part and a second connecting part. The first connecting part can be adapted to be installed with a liquid mother bottle, and the second connecting part can be adapted to be installed with a dispensing bottle. Thus, the liquid filling device and the dispensing bottle can be stably placed above the liquid mother bottle and connected to the liquid mother bottle and the dispensing bottle by means of a pipeline assembly. During liquid filling, the user can free their hands. The liquid in the liquid mother bottle can be pumped into the dispensing bottle through the pipeline assembly by the operation of an electric pump. The operation is simple, time-saving and labor-saving.

[0006] In one embodiment, the first connecting portion is provided with a first limiting groove, and the bottom wall of the first limiting groove is provided with the first opening. The first limiting groove is used to be fitted and installed with the bottle mouth of the liquid mother bottle. Conventionally, the liquid mother bottle includes a bottle body and a nozzle. The top of the bottle body has a protrusion forming an annular bottle mouth for connecting with the nozzle. By providing a first limiting groove in the first connecting portion, when the user needs to fill the liquid, the nozzle is separated from the bottle mouth, and the fitting and installation of the first limiting groove with the bottle mouth can form a limiting effect, so that the filling device can be stably placed above the liquid mother bottle.

[0007] Furthermore, the input end of the pipeline assembly is configured to extend through the first limiting groove to the outside of the housing assembly and into the bottle body through the bottle opening.

[0008] In one embodiment, the inner wall of the first limiting groove is provided with an internal thread, which is used for threaded connection with the bottle mouth of the liquid mother bottle. By adopting the above structure, with the internal thread of the first limiting groove engaging with the external thread of the bottle mouth of the liquid mother bottle, the user can apply a tightening force to make the first connecting part tightly connected with the bottle mouth, which is convenient for assembly. Moreover, the threaded connection method has good sealing performance. When the first connecting part is connected to the bottle mouth of the liquid mother bottle, the engagement of the internal and external threads can effectively prevent the liquid in the liquid mother bottle from evaporating or leaking when poured.

[0009] In one embodiment, the first connecting portion is located in the mounting cavity, and the bottom wall of the housing body is used to abut against the body of the liquid mother bottle. By adopting the above structure, on the one hand, the first connecting portion is recessed inside the housing body, which makes the structure of the filling device more compact and small; on the other hand, the abutment between the bottom wall of the housing body and the body of the liquid mother bottle increases the connection area between the filling device and the liquid mother bottle, thereby making the installation of the filling device more stable.

[0010] In one embodiment, the second connecting portion includes a limiting body and a first limiting plate. The first limiting plate is disposed on the housing body and has a second opening. The limiting body is vertically disposed on the side of the first limiting plate away from the housing body. The limiting body and the first limiting plate cooperate to form a second limiting groove, which communicates with the second opening. The second limiting groove is used for fitting and installing with a dispensing bottle. By providing a second limiting groove in the second connecting portion, a limiting effect can be achieved by fitting and installing the dispensing bottle with the bottle body, allowing the dispensing bottle to be stably positioned above the filling device.

[0011] In one embodiment, the first limiting plate has a recessed third limiting groove on the side away from the housing body. The bottom wall of the third limiting groove has the second opening. The bottom of the limiting body is detachably disposed in the third limiting groove. The cross-sectional area of ​​the third limiting groove is larger than that of the second limiting groove. Specifically, when the cross-section of the dispensing bottle is small, the user can connect the limiting body to the first limiting plate, so that the dispensing bottle can be positioned and installed in the second limiting groove to connect with the infusion assembly. When the cross-section of the dispensing bottle is large, the user can detach the limiting body, so that the dispensing bottle can be positioned and installed in the larger third limiting groove to connect with the infusion assembly. Thus, through the aforementioned detachably connected limiting body and first limiting plate, multiple dispensing bottles of different sizes commonly found on the market can be adapted for filling, improving the practicality of the filling device.

[0012] In one embodiment, a first silicone ring is further included. The sidewall of the third limiting groove is recessed to form a first annular groove. The first silicone ring is adapted and installed in the first annular groove, and the inner peripheral wall of the first silicone ring is configured to abut against the outer peripheral wall of the limiting body or the outer peripheral wall of the dispensing bottle. This design, by adapting and installing the first silicone ring in the first annular groove, utilizes its elastic deformation capability to tightly fit against the outer peripheral wall of the limiting body or the dispensing bottle, effectively enhancing the sealing and anti-shaking capabilities of the connection. Simultaneously, by protecting the surface of the component through soft contact, it significantly improves assembly stability and leak-proof performance.

[0013] In one embodiment, the inner peripheral wall of the third limiting groove is recessed on the side away from the second opening to form a second annular groove. The limiting body includes a first ring portion and a second ring portion. The first ring portion is detachably disposed in the third limiting groove. The second ring portion is connected to the end of the first ring portion away from the second opening and protrudes outward along the circumference of the first ring portion. The side of the second ring portion near the first ring portion abuts against the inner wall of the second annular groove. By adopting the above structure, the connection area between the limiting body and the first limiting plate can be increased, thereby making the installation of the limiting body more stable. At the same time, by utilizing the abutment between the inner wall of the second annular groove and the bottom wall of the second ring portion, the limiting body can be effectively prevented from tipping over, ensuring that the limiting body and the dispensing bottle can be installed vertically above the liquid mother bottle.

[0014] In one embodiment, a second silicone ring is also included. A third annular groove is formed by a recess in the sidewall of the second limiting groove away from the second opening. The second silicone ring is fitted into the third annular groove, and its inner peripheral wall is configured to abut against the outer peripheral wall of the dispensing bottle. This design, by fitting the second silicone ring into the third annular groove, utilizes its elastic deformation capability to tightly fit against the outer peripheral wall of the dispensing bottle, effectively enhancing the anti-shaking capability of the connection and making the dispensing bottle installation more secure and less prone to tipping.

[0015] In one embodiment, the limiting body has a semi-cylindrical structure, and the second connecting portion further includes a second limiting plate. The second limiting plate is disposed on the side of the limiting body away from the first limiting plate. The first limiting plate, the limiting body, and the second limiting plate together form a second limiting groove with a side opening. The second limiting plate is configured to cooperate with the first limiting plate to clamp the dispensing bottle. By adopting the above structure, the user can install the dispensing bottle into the second limiting groove via the side of the second connecting portion. At the same time, the clamping cooperation between the second limiting plate and the first limiting plate also achieves constraint in the height direction of the dispensing bottle, effectively enhancing the stability and vibration resistance of the dispensing bottle installation, and improving the reliability and operability of the overall connection.

[0016] In one embodiment, the second limiting plate has a notch on the side near the side opening, the notch being configured to allow the nozzle of the dispensing bottle to pass through, and the side of the second limiting plate facing the first limiting plate is configured to abut against the top of the dispensing bottle. By employing this structure, when the dispensing bottle is installed in the second limiting groove, its nozzle can be exposed through the notch, thereby providing a better point of application for easier loading and unloading of the dispensing bottle by the user.

[0017] In one embodiment, the tubing assembly includes an infusion tube and an outlet nozzle. The outlet nozzle is inserted into the second opening. The input end of the electric pump is connected to the infusion tube, and the output end of the electric pump is connected to one end of the outlet nozzle. The other end of the outlet nozzle is configured to be inserted into a dispensing bottle to connect the infusion tube and the dispensing bottle. This direct insertion design between the outlet nozzle and the dispensing bottle ensures a tight seal and ease of operation, effectively improving the efficiency and reliability of liquid delivery.

[0018] In one embodiment, the liquid outlet and the first limiting plate are integrally formed. Attached Figure Description

[0019] Figure 1 This is a perspective view of the liquid filling device in the liquid filling state of Example 1;

[0020] Figure 2 This is a cross-sectional view of the filling device in the filling state according to Example 1;

[0021] Figure 3 This is a first perspective view of the liquid filling device of Example 1;

[0022] Figure 4 This is a second perspective view of the liquid filling device of Example 1;

[0023] Figure 5 This is an exploded view of the liquid filling device of Example 1;

[0024] Figure 6 This is a perspective view of the liquid filling device in the liquid filling state of Example 2;

[0025] Figure 7 This is a cross-sectional view of the filling device in the filling state of Example 2;

[0026] Figure 8 This is a first perspective view of the liquid filling device of Example 2;

[0027] Figure 9 This is a second perspective view of the liquid filling device of Example 2;

[0028] Figure 10 This is an exploded view of the liquid filling device of Example 2.

[0029] The correspondence between the reference numerals and the component names is as follows:

[0030] 100 filling device;

[0031] 1. Housing assembly; 101. Mounting cavity; 102. First limiting groove; 103. Second limiting groove; 104. Third limiting groove; 105. First annular groove; 106. Second annular groove; 107. Third annular groove; 108. Notch; 11. Housing body; 12. First connecting part; 13. Second connecting part; 131. Limiting body; 1311. First ring part; 1312. Second ring part; 132. First limiting plate; 133. Second limiting plate.

[0032] 2. Infusion assembly, 21. Electric pump, 22. Piping assembly, 221. Infusion tubing, 222. Infusion nozzle;

[0033] 3. First silicone ring;

[0034] 4. Second silicone ring;

[0035] 200 liquid mother bottle;

[0036] Bottled in 300 portions. Detailed Implementation

[0037] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0039] The liquid filling device of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0040] Example 1

[0041] The following will be combined with the appendix Figures 1 to 5 The specific structure of the liquid filling device 100 in Example 1 is described in detail.

[0042] like Figures 1 to 5 As shown, this embodiment discloses a liquid filling device 100, including: a housing assembly 1, which includes a housing body 11, a first connecting part 12, and a second connecting part 13. The first connecting part 12 and the second connecting part 13 are respectively disposed on the housing body 11. The housing body 11 has a mounting cavity 101. The first connecting part 12 has a first opening, and the second connecting part 13 has a second opening. The mounting cavity 101 communicates with the first opening and the second opening respectively. The first connecting part 12 is used to be adapted for installation with a liquid mother bottle 200, and the second connecting part 13 is used to be adapted for installation with a dispensing bottle 300. An infusion assembly 2 includes an electric pump 21 and a tubing assembly 22. The electric pump 21 and the tubing assembly 22 are disposed in the mounting cavity 101. The input end of the tubing assembly 22 is connected to the liquid mother bottle 200 through the first opening, and the output end of the tubing assembly 22 is connected to the dispensing bottle 300 through the second opening. The electric pump 21 is used to drive the liquid in the liquid mother bottle 200 to enter the dispensing bottle 300 through the tubing assembly 22.

[0043] This application provides a liquid filling device 100, including a housing assembly 1 and a liquid delivery assembly 2 disposed in the housing assembly 1. The housing assembly 1 has a first connecting part 12 and a second connecting part 13. The first connecting part 12 can be adapted to be installed with a liquid mother bottle 200, and the second connecting part 13 can be adapted to be installed with a dispensing bottle 300. Thus, the liquid filling device 100 and the dispensing bottle 300 can be stably placed above the liquid mother bottle 200 and connected to the dispensing bottle 300 by a pipeline assembly 22. During liquid filling, the user can free their hands. The liquid in the liquid mother bottle 200 can be pumped into the dispensing bottle 300 through the pipeline assembly 22 by the operation of the electric pump 21. The operation is simple, time-saving and labor-saving.

[0044] like Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first connecting part 12 is provided with a first limiting groove 102, the bottom wall of the first limiting groove 102 is provided with a first opening, and the first limiting groove 102 is used to be adapted and installed with the bottle mouth of the liquid mother bottle 200. Conventionally, the liquid mother bottle 200 includes a bottle body and a nozzle. The top of the bottle body protrudes to form an annular bottle mouth for connecting with the nozzle. By providing the first limiting groove 102 in the first connecting part 12, when the user needs to fill the liquid, the nozzle is separated from the bottle mouth, and the first limiting groove 102 is adapted and installed with the bottle mouth to form a limiting effect, so that the filling device 100 can be stably placed above the liquid mother bottle 200.

[0045] Furthermore, the input end of the piping assembly 22 is configured to extend through the first limiting groove 102 to the outside of the housing assembly 1 and into the bottle body through the bottle opening.

[0046] like Figure 2 and Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the inner wall of the first limiting groove 102 is provided with an internal thread, which is used for threaded connection with the bottle body and bottle mouth of the liquid mother bottle 200. By adopting the above structure, with the internal thread of the first limiting groove 102 engaging with the external thread of the bottle body and bottle mouth of the liquid mother bottle 200, the user can apply a tightening force to make the first connecting part 12 tightly connected with the bottle body and bottle mouth, which is convenient for assembly. Moreover, the threaded connection method has good sealing performance. When the first connecting part 12 is connected to the bottle body and bottle mouth of the liquid mother bottle 200, the engagement of the internal and external threads can effectively prevent the liquid in the liquid mother bottle 200 from evaporating or leaking when poured.

[0047] like Figure 2 and Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first connecting part 12 is located in the mounting cavity 101, and the bottom wall of the housing body 11 is used to abut against the bottle body of the liquid mother bottle 200. By adopting the above structure, on the one hand, the first connecting part 12 is recessed and disposed on the inner side of the housing body 11, which makes the structure of the filling device 100 more compact and small; on the other hand, the abutment between the bottom wall of the housing body 11 and the bottle body of the liquid mother bottle 200 increases the connection area between the filling device 100 and the liquid mother bottle 200, thereby making the installation of the filling device 100 more stable.

[0048] like Figure 2 and Figure 4As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second connecting part 13 includes a limiting body 131 and a first limiting plate 132. The first limiting plate 132 is disposed on the housing body 11 and has a second opening. The limiting body 131 is vertically disposed on the side of the first limiting plate 132 away from the housing body 11. The limiting body 131 and the first limiting plate 132 cooperate to form a second limiting groove 103. The second limiting groove 103 communicates with the second opening and is used to be adapted and installed with the dispensing bottle 300. By providing the second limiting groove 103 in the second connecting part 13, the second limiting groove 103 can be adapted and installed with the bottle body of the dispensing bottle 300 to form a limiting effect, so that the dispensing bottle 300 can be stably placed above the filling device 100.

[0049] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first limiting plate 132 is recessed on the side away from the housing body 11 to form a third limiting groove 104, the bottom wall of the third limiting groove 104 is provided with a second opening, the bottom of the limiting body 131 is detachably disposed in the third limiting groove 104, and the cross-sectional area of ​​the third limiting groove 104 is larger than the cross-sectional area of ​​the second limiting groove 103. Specifically, when the cross-section of the dispensing bottle 300 is small, the user can connect the limiting body 131 to the first limiting plate 132, so that the dispensing bottle 300 can be positioned and installed in the second limiting groove 103 and connected to the infusion assembly 2; when the cross-section of the dispensing bottle 300 is large, the user can disassemble the limiting body 131, so that the dispensing bottle 300 can be positioned and installed in the larger third limiting groove 104 and connected to the infusion assembly 2. Thus, through the aforementioned detachable limiting body 131 and the first limiting plate 132, multiple dispensing bottles 300 of different specifications commonly found on the market can be adapted for filling, thereby improving the practical performance of the filling device 100.

[0050] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further includes: a first silicone ring 3; the sidewall of the third limiting groove 104 is recessed to form a first annular groove 105; the first silicone ring 3 is adapted and installed in the first annular groove 105; and the inner peripheral wall of the first silicone ring 3 is configured to abut against the outer peripheral wall of the limiting body 131 or the outer peripheral wall of the dispensing bottle 300. This design, by adapting and installing the first silicone ring 3 in the first annular groove 105, utilizes its elastic deformation capability to tightly fit against the outer peripheral wall of the limiting body 131 or the dispensing bottle 300, effectively enhancing the sealing and anti-shaking capabilities of the connection. Simultaneously, by softly contacting the surface of the protective component, it significantly improves assembly stability and leak-proof performance.

[0051] like Figure 2 and Figure 5As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the inner peripheral wall of the third limiting groove 104 is recessed on the side away from the second opening to form a second annular groove 106, the limiting body 131 includes a first ring portion 1311 and a second ring portion 1312, the first ring portion 1311 is detachably disposed in the third limiting groove 104, the second ring portion 1312 is connected to the end of the first ring portion 1311 away from the second opening, and is formed to protrude outward along the circumference of the first ring portion 1311, the side of the second ring portion 1312 near the first ring portion 1311 abuts against the inner wall of the second annular groove 106. By adopting the above structure, the connection area between the limiting body 131 and the first limiting plate 132 can be increased, thereby making the installation of the limiting body 131 more stable. At the same time, by utilizing the inner wall of the second annular groove 106 to abut against the bottom wall of the second ring portion 1312, the limiting body 131 can be effectively prevented from tipping over, ensuring that the limiting body 131 and the dispensing bottle 300 can be installed vertically above the liquid mother bottle 200.

[0052] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further includes a second silicone ring 4. A third annular groove 107 is formed by recessing the side wall of the second limiting groove 103 away from the second opening. The second silicone ring 4 is adapted to be installed in the third annular groove 107, and the inner peripheral wall of the second silicone ring 4 is configured to abut against the outer peripheral wall of the dispensing bottle 300. This design, by adapting and installing the second silicone ring 4 within the third annular groove 107, utilizes its elastic deformation capability to tightly fit against the outer peripheral wall of the dispensing bottle 300, effectively enhancing the anti-shaking capability of the connection, making the installation of the dispensing bottle 300 more secure and less prone to tipping.

[0053] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the pipeline assembly 22 includes an infusion tube 221 and an outlet nozzle 222, the outlet nozzle 222 is inserted into a second opening, the input end of the electric pump 21 is connected to the infusion tube 221, the output end of the electric pump 21 is connected to one end of the outlet nozzle 222, and the other end of the outlet nozzle 222 is configured to be inserted into the dispensing bottle 300 to connect the infusion tube 221 and the dispensing bottle 300. By adopting a direct insertion design between the outlet nozzle 222 and the dispensing bottle 300, the sealing of the connection between the dispensing bottle 300 and the outlet nozzle 222 and the ease of operation are ensured, effectively improving the efficiency and reliability of liquid delivery.

[0054] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the liquid outlet 222 and the first limiting plate 132 are integrally formed.

[0055] Example 2

[0056] The following will be combined with the appendix Figures 6 to 10 The specific structure of the liquid filling device 100 in Example 2 will be described in detail.

[0057] This embodiment differs from Embodiment 1 only in the structure of the second connecting part 13; all other structures are the same. In this embodiment, the second connecting part 13 includes a limiting body 131, a first limiting plate 132, and a second limiting plate 133. The limiting body 131 has a semi-cylindrical structure. The first limiting plate 132 is disposed on the housing body 11 and has a second opening. The second limiting plate 133 is disposed on the side of the limiting body 131 away from the first limiting plate 132. The first limiting plate 132, the limiting body 131, and the second limiting plate 133 together form a second limiting groove 103 with a side opening. The second limiting groove 103 communicates with the second opening and is used to be fitted and installed with the dispensing bottle 300. The second limiting plate 133 is configured to cooperate with the first limiting plate 132 to clamp the dispensing bottle 300. By adopting the above structure, the user can install the dispensing bottle 300 into the second limiting groove 103 via the side of the second connecting part 13. At the same time, the clamping cooperation between the second limiting plate 133 and the first limiting plate 132 also achieves constraint in the height direction of the dispensing bottle 300, effectively enhancing the stability and vibration resistance of the dispensing bottle 300 installation, and improving the reliability and operability of the overall connection.

[0058] like Figure 6 , Figure 9 and Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second limiting plate 133 has a notch 108 on the side near the side opening, the notch 108 is configured to allow the nozzle of the dispensing bottle 300 to pass through, and the side of the second limiting plate 133 facing the first limiting plate 132 is configured to abut against the top of the dispensing bottle 300. By adopting the above structure, when the dispensing bottle 300 is installed in the second limiting groove 103, its nozzle can be exposed through the notch 108, thereby providing a better force application point to facilitate the user's loading and unloading of the dispensing bottle 300.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A liquid filling device, characterized in that, include: The housing assembly (1) includes a housing body (11), a first connecting part (12), and a second connecting part (13). The first connecting part (12) and the second connecting part (13) are respectively disposed on the housing body (11). The housing body (11) is provided with a mounting cavity (101). The first connecting part (12) is provided with a first opening, and the second connecting part (13) is provided with a second opening. The mounting cavity (101) is in communication with the first opening and the second opening respectively. The first connecting part (12) is used for fitting and installing with a liquid mother bottle, and the second connecting part (13) is used for fitting and installing with a dispensing bottle. An infusion assembly (2) includes an electric pump (21) and a tubing assembly (22). The electric pump (21) and the tubing assembly (22) are disposed in the mounting cavity (101). The input end of the tubing assembly (22) is connected to a liquid mother bottle through the first opening, and the output end of the tubing assembly (22) is connected to a dispensing bottle through the second opening. The electric pump (21) is used to drive the liquid in the liquid mother bottle to enter the dispensing bottle through the tubing assembly (22).

2. The liquid filling device according to claim 1, characterized in that, The first connecting part (12) is provided with a first limiting groove (102), and the bottom wall of the first limiting groove (102) is provided with the first opening. The first limiting groove (102) is used to be adapted and installed with the bottle mouth of the liquid mother bottle.

3. The liquid filling device according to claim 2, characterized in that, The inner wall of the first limiting groove (102) is provided with an internal thread, which is used for threaded connection with the bottle body and mouth of the liquid mother bottle; and / or The first connecting part (12) is located in the mounting cavity (101), and the bottom wall of the housing body (11) is used to abut against the body of the liquid mother bottle.

4. The liquid filling device according to claim 1, characterized in that, The second connecting part (13) includes a limiting body (131) and a first limiting plate (132). The first limiting plate (132) is disposed on the housing body (11) and has a second opening. The limiting body (131) is vertically disposed on the side of the first limiting plate (132) away from the housing body (11). The limiting body (131) and the first limiting plate (132) cooperate to form a second limiting groove (103). The second limiting groove (103) communicates with the second opening and is used to be adapted to the dispensing bottle for installation.

5. The liquid filling device according to claim 4, characterized in that, The first limiting plate (132) is recessed on the side away from the housing body (11) to form a third limiting groove (104). The bottom wall of the third limiting groove (104) is provided with the second opening. The bottom of the limiting body (131) is detachably disposed in the third limiting groove (104). The cross-sectional area of ​​the third limiting groove (104) is larger than the cross-sectional area of ​​the second limiting groove (103).

6. The liquid filling device according to claim 5, characterized in that, It also includes a first silicone ring (3), the sidewall of the third limiting groove (104) is recessed to form a first annular groove (105), the first silicone ring (3) is adapted to be installed in the first annular groove (105), and the inner peripheral wall of the first silicone ring (3) is configured to abut against the outer peripheral wall of the limiting body (131) or the outer peripheral wall of the dispensing bottle; and / or The inner peripheral wall of the third limiting groove (104) is recessed on the side away from the second opening to form a second annular groove (106). The limiting body (131) includes a first ring portion (1311) and a second ring portion (1312). The first ring portion (1311) is detachably disposed in the third limiting groove (104). The second ring portion (1312) is connected to the end of the first ring portion (1311) away from the second opening and is formed to protrude outward along the circumference of the first ring portion (1311). The side of the second ring portion (1312) close to the first ring portion (1311) abuts against the inner wall of the second annular groove (106).

7. The liquid filling device according to claim 4, characterized in that, It also includes a second silicone ring (4), and the side wall of the second limiting groove (103) is recessed on the side away from the second opening to form a third annular groove (107). The second silicone ring (4) is adapted to be installed in the third annular groove (107), and the inner peripheral wall of the second silicone ring (4) is configured to abut against the outer peripheral wall of the dispensing bottle.

8. The liquid filling device according to claim 4, characterized in that, The limiting body (131) has a semi-cylindrical structure. The second connecting part (13) also includes a second limiting plate (133). The second limiting plate (133) is disposed on the side of the limiting body (131) away from the first limiting plate (132). The first limiting plate (132), the limiting body (131) and the second limiting plate (133) surround each other to form a second limiting groove (103) with a side opening. The second limiting plate (133) is configured to cooperate with the first limiting plate (132) to clamp the dispensing bottle.

9. The liquid filling device according to claim 8, characterized in that, The second limiting plate (133) has a notch (108) on the side near the side opening, the notch (108) being configured to allow the nozzle of the dispensing bottle to pass through, and the side of the second limiting plate (133) facing the first limiting plate (132) being configured to abut against the top of the dispensing bottle.

10. The liquid filling device according to any one of claims 1 to 9, characterized in that, The tubing assembly (22) includes an infusion tube (221) and an outlet (222). The outlet (222) is inserted into the second opening. The input end of the electric pump (21) is connected to the infusion tube (221), and the output end of the electric pump (21) is connected to one end of the outlet (222). The other end of the outlet (222) is configured to be inserted into a dispensing bottle to connect the infusion tube (221) and the dispensing bottle.

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