A liquid extraction device

Abstract

The present invention discloses a liquid extraction device, including a shell having a receiving cavity and being connected to the mouth of a container, the shell being provided with a conduit that enables the receiving cavity and the inner cavity of the container to communicate, the shell being provided with a liquid inlet pipe that is connected to the receiving cavity and can be inserted below the liquid level of the solution in the inner cavity of the container, the liquid inlet pipe being provided with a first valve that can prevent the liquid from flowing back from the receiving cavity to the inner cavity of the container, the shell being provided with an upper shell that can be connected to the mouth of the container, and a pressing piece that can be movably arranged on the upper shell and cooperates with the upper shell to form the receiving cavity. When in use, the pressing piece is pressed downward, the air in the receiving cavity is squeezed into the container so that the pressure in the container increases, and the increased pressure squeezes the liquid in the container into the receiving cavity through the liquid inlet pipe, the force on the pressing piece is removed, the pressing piece moves upward to reset, and the above steps are repeated, so that the solution in the receiving cavity can submerge the tube mouth of the conduit, and a quantitative amount of liquid is obtained.

Description

[Technical field]

[0002] The invention relates to a liquid pumping device. [Background technology]

[0004] Due to the booming food and beverage industry, the consumption of dairy products, beverages and wine has increased. These liquids are generally contained in large barrels or small barrels. Therefore, the liquids are mostly extracted by pouring them out manually or by traditional manual extraction. In addition to the high labor cost, this method is also inefficient and the amount of liquid extracted is not quantitative.

[0005] Based on the above problems, the present invention provides a liquid pumping device. [Summary of the invention]

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a liquid extraction device capable of quantitatively extracting liquid.

[0008] The present invention is achieved through the following technical solutions:

[0009] A liquid pumping device, characterized in that it includes a shell 1 having a accommodating cavity 100 and being connectable to a container mouth, the shell 1 being provided with a conduit 2 that enables the accommodating cavity 100 to communicate with the inner cavity of the container, the shell 1 being further provided with a liquid inlet pipe 3 that is communicated with the accommodating cavity 100 and can be inserted into the inner cavity of the container below the liquid level, the liquid inlet pipe 3 being provided with a first valve 31 that can prevent liquid from flowing back from the accommodating cavity 100 to the inner cavity of the container, the shell 1 including an upper shell 11 that can be connectable to the container mouth, and a pressing member 12 that is movably provided on the upper shell 11 up and down and cooperates with the upper shell 11 to form the accommodating cavity 100.

[0010] The liquid extraction device as described above is characterized in that: the pressing member 12 is a pressure cover, and an elastic reset element 13 is provided between the pressing member 12 and the conduit 2 to enable the pressing member 12 to move upward and reset relative to the upper shell 11.

[0011] The liquid pumping device as described above is characterized in that the pressing member 12 is a pressure pump capable of generating elastic deformation.

[0012] The liquid extraction device as described above is characterized in that: the upper shell 11 is provided with a liquid outlet 111 connected to the accommodating chamber 100, and the upper shell 11 is also provided with a liquid outlet nozzle 14, and the liquid outlet nozzle 14 is provided with a liquid outlet channel 141, and when the liquid outlet nozzle 14 rotates relative to the upper shell 11 and the liquid outlet channel 141 is aligned with the liquid outlet hole 111, the liquid in the accommodating chamber 100 can flow out through the liquid outlet nozzle 14.

[0013] The liquid extraction device as described above is characterized in that: a second valve 21 capable of connecting or disconnecting the accommodating chamber 100 and the inner cavity of the container is provided in the conduit 2 .

[0014] The liquid pumping device as described above is characterized in that: the upper shell 11 and the liquid inlet pipe 3 are formed in one piece, and the catheter 2 is movably arranged on the upper shell 11 .

[0015] The liquid pumping device as described above is characterized in that the upper shell 11 is integrally formed with the liquid inlet pipe 3 and the conduit 2 .

[0016] The liquid extraction device as described above is characterized in that: the upper shell 11 is also provided with a connecting cover 4 which is detachably arranged therefrom and can be connected to the mouth of the container, and the liquid inlet pipe 3 and the conduit 2 are penetrated through the connecting cover 4.

[0017] The liquid extraction device as described above is characterized in that: the upper shell 11 is also provided with a connecting middle cover 5 which is detachably arranged therewith and can be connected to the container mouth, the conduit 2 is penetrated through the connecting middle cover 5, and the liquid inlet pipe 3 is integrally formed with the connecting middle cover 5.

[0018] The liquid extraction device as described above is characterized in that: the connecting middle cover 5 is provided with a liquid storage chamber 500 that can be communicated with the accommodating chamber 100, the connecting middle cover 5 is provided with a positioning channel 51 for the catheter 2 to pass through, and the wall surface of the positioning channel 51 is provided with a liquid outlet 511 that is communicated with the liquid storage chamber 500, and the catheter 2 is provided with an outflow hole 22 that allows the solution in the liquid storage chamber 500 to flow out through the catheter 2 when the catheter 2 rotates relative to the connecting middle cover 5 and aligns with the liquid outlet 511.

[0019] The liquid extraction device as described above is characterized in that: the conduit 2 is also provided with a connection cover 4 which is detachably connected thereto and can be connected to the mouth of the container, and a portion of the liquid inlet pipe 3 is passed through the connection cover 4 .

[0020] The liquid pumping device as described above is characterized in that: a second valve 21 capable of connecting or disconnecting the accommodating chamber 100 and the inner cavity of the container is provided in the conduit 2, and the second valve 21 is provided on the inner wall of the air inlet of the conduit 2 located in the accommodating chamber 100.

[0021] The liquid extraction device as described above is characterized in that: the connecting middle cover 5 is provided with a handle portion 15 for easy holding.

[0022] The liquid extraction device as described above is characterized in that: the housing 1 is provided with a handle portion 15 for easy gripping.

[0023] The liquid pumping device as described above is characterized in that a sealing member 16 is provided between the pressing member 12 and the upper shell 11 .

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. When the present invention is in use, the pressing piece is pressed downward, the pressing piece moves downward relative to the upper shell body and the volume of the accommodating chamber is reduced, so that the air in the accommodating chamber is squeezed into the container, so that the pressure in the container increases. The increased pressure squeezes the liquid in the container into the accommodating chamber through the liquid inlet pipe, removes the force on the pressing piece, and moves the pressing piece upward to reset, repeating the above steps, so that the solution in the accommodating chamber can submerge the tube mouth of the catheter, and a certain amount of liquid is obtained. The present invention has a simple structure and is easy to use.

[0026] 2. The pressing member in the present invention is a pressing cover, and the pressing member is moved upward and reset relative to the upper shell body when no force is applied, through an elastic reset element, which is easy to operate.

[0027] 3. The pressing member in the present invention is a pressure pump capable of producing elastic deformation. The pressure pump will be compressed and deformed when subjected to force, thereby reducing the volume of the accommodating chamber. It will automatically recover when no longer subjected to force, thereby increasing the volume of the accommodating chamber.

[0028] 4. The present invention rotates the liquid outlet nozzle so that the liquid outlet channel in the liquid outlet nozzle is aligned with the liquid outlet hole on the upper shell body, and the shell body is tilted so that the liquid in the accommodating chamber flows through the liquid outlet hole to the liquid outlet channel for pouring out. When liquid is not to be discharged, the shell body is rotated and the liquid outlet nozzle is rotated so that the liquid outlet hole contacts the side wall surface of the liquid outlet nozzle and liquid cannot be discharged. The structure is simple and the operation is convenient.

[0029] 5. The present invention provides a liquid storage cavity that can be communicated with the accommodating cavity on the connecting middle cover, and rotates the catheter provided on the connecting middle cover so that the outflow hole on the catheter is aligned with the liquid outlet on the wall of the positioning channel. The liquid can flow from the liquid outlet to the outflow hole through the liquid storage cavity and then be poured out through the catheter. When pouring the liquid is not needed, the catheter is rotated so that the outflow hole and the liquid outlet are aligned. At this time, the outflow hole on the catheter is in contact with the wall of the positioning channel, and the liquid outlet is in contact with the outer side of the catheter. The solution cannot flow from the liquid outlet to the outflow hole, so that the catheter cannot discharge liquid.

Brief Description of the Drawings

[0031] Figure 1 It is one of the cross-sectional views of the embodiment 1 of the liquid pumping device of the present invention;

[0032] Figure 2 This is the second cross-sectional view of the first embodiment of the liquid pumping device of the present invention;

[0033] Figure 3 This is the second cross-sectional view of the embodiment 2 of the liquid pumping device of the present invention;

[0034] Figure 4 It is one of the cross-sectional views of the third embodiment of the liquid pumping device of the present invention;

[0035] Figure 5 This is the second cross-sectional view of the third embodiment of the liquid pumping device of the present invention;

[0036] Figure 6 It is one of the cross-sectional views of the fourth embodiment of the liquid pumping device of the present invention;

[0037] Figure 7 This is the second cross-sectional view of the fourth embodiment of the liquid pumping device of the present invention;

[0038] Figure 8 is a cross-sectional view of a fifth embodiment of a liquid pumping device according to the present invention;

[0039] Fig. 9 is a cross-sectional view of a sixth embodiment of a liquid pumping device of the present invention;

[0040] Fig.10 is a cross-sectional view of a seventh embodiment of a liquid pumping device according to the present invention;

[0041] Fig.11 is a cross-sectional view of Example 8 of the liquid pumping device of the present invention;

[0042] Fig.12 is one of the cross-sectional views of Example 9 of the liquid pumping device of the present invention;

[0043] Fig.13 is a second cross-sectional view of embodiment 9 of the liquid pumping device of the present invention;

[0044] Fig.14 is a cross-sectional view of a liquid pumping device embodiment 10 of the present invention;

[0045] Fig.15 It is an exploded view of the connection between the middle cover and the conduit in Example 10 of the liquid pumping device of the present invention. [Specific implementation method]

[0047] The present invention will be further described below in conjunction with the accompanying drawings:

[0048] Example 1: Figures 1 to 2As shown, the present invention provides a liquid pumping device, including a shell 1 having a accommodating cavity 100 and being connectable to a container mouth, the shell 1 is provided with a conduit 2 which enables the accommodating cavity 100 to communicate with the inner cavity of the container, the shell 1 is also provided with a liquid inlet pipe 3 which is communicated with the accommodating cavity 100 and can be inserted into the inner cavity of the container below the liquid level, the liquid inlet pipe 3 is provided with a first valve 31 which can prevent the liquid from flowing back from the accommodating cavity 100 to the inner cavity of the container, the shell 1 includes an upper shell 11 which can be connectable to the container mouth, and a pressing piece 12 which is movably arranged on the upper shell 11 up and down and cooperates with the upper shell 11 to form the accommodating cavity 100, and when the pressing piece 12 moves downward relative to the upper shell 11, the shell 1 can quantitatively extract liquid from the inner cavity of the container through the liquid inlet pipe 3. When in use, the pressing piece 12 is pressed downward, and the pressing piece 12 moves downward relative to the upper shell 11 and reduces the volume of the accommodating chamber 100, so that the air in the accommodating chamber 100 is squeezed into the container, so that the pressure in the container increases. The increased pressure squeezes the liquid in the container into the accommodating chamber 100 through the liquid inlet pipe 3. The force on the pressing piece 12 is removed, and the pressing piece 12 moves upward to reset. The above steps are repeated, so that the solution in the accommodating chamber 100 can submerge the tube mouth of the catheter 3, and a certain amount of liquid is obtained. The present invention has a simple structure and is easy to use.

[0049] The pressing member 12 is a pressure pump capable of producing elastic deformation. The pressing member 12 in the embodiment is a pressure pump capable of producing elastic deformation, which will compress and deform when subjected to force, thereby reducing the volume of the accommodating cavity, and will automatically recover when no force is applied, thereby increasing the volume of the accommodating cavity.

[0050] The conduit 2 is provided with a second valve 21 capable of connecting or disconnecting the accommodating chamber 100 and the inner cavity of the container. The second valve 21 is used to connect or disconnect the accommodating chamber 100 and the inner cavity of the container.

[0051] The upper shell 11 is also provided with a connection cover 4 which is detachably arranged thereon and can be connected to the mouth of the container, and the liquid inlet pipe 3 and the conduit 2 are passed through the connection cover 4. The connection cover 4 facilitates the installation of the shell 1 at the mouth of the container, and the connection cover 4 can be connected in a snap-on or threaded manner, which is simple to install and convenient to disassemble.

[0052] The upper shell 11 and the liquid inlet pipe 3 are integrally formed, and the conduit 2 is movably disposed on the upper shell 11 .

[0053] When liquid needs to be discharged, the catheter 2 is moved downward until the catheter 2 is immersed below the liquid surface of the accommodating chamber 100, and then the pressing piece 12 is pressed downward to press out the solution on the tube mouth of the catheter 2. By controlling the downward movement height of the pressing piece 12, the liquid can be discharged quantitatively, and the operation is simple.

[0054] Example 2: Figure 3As shown, the difference between this embodiment and embodiment 1 is that most of the shell 1 is a pressure pump, and the height of the pressure pump is greater than the height of the upper shell 11, and the volume of the accommodating chamber 100 is determined by the height of the pressure pump.

[0055] Example 3: Figure 4 and 5 As shown, the difference between this embodiment and embodiment 1 is that: the upper shell 11 is also provided with a connecting middle cover 5 which is detachably provided thereon and can be connected to the mouth of the container, the conduit 2 is passed through the connecting middle cover 5, and the liquid inlet pipe 3 is integrally formed with the connecting middle cover 5. The conduit 2 is also provided with a connecting cover 4 which is detachably connected thereto and can be connected to the mouth of the container, and part of the liquid inlet pipe 3 is passed through the connecting cover 4. The connecting middle cover 5 and the connecting cover 4 double cooperate to fix the conduit 2, the connecting middle cover 5 is connected to the upper shell 11 for sealing the accommodating cavity 100, and the connecting cover 4 is connected to the mouth of the container, and the connecting middle cover 5 and the connecting cover 4 cooperate to have better stability.

[0056] Example 4: Figure 6 and 7 As shown, the difference between this embodiment and embodiment 1 is that the pressing member 12 is a gland, and an elastic reset element 13 is provided between the pressing member 12 and the conduit 2, which enables the pressing member 12 to move up and reset relative to the upper shell 11. The elastic reset element 13 is a compression spring, one end of which is connected to the conduit 2, and the other end is provided on the avoidance surface of the pressing member 12. The pressing member 12 is a gland, and the elastic reset element 13 enables the pressing member 12 to move up and reset relative to the upper shell 11 when no force is applied, which is easy to operate. A sealing member 16 is provided between the pressing member 12 and the upper shell 11. The sealing member 16 facilitates sealing the gland and the upper shell 11.

[0057] The upper shell 11 is provided with a liquid outlet hole 111 communicating with the accommodating chamber 100, and the upper shell 11 is also provided with a liquid outlet nozzle 14, and a liquid outlet channel 141 is provided in the liquid outlet nozzle 14, and when the liquid outlet nozzle 14 rotates relative to the upper shell 11 to align the liquid outlet channel 141 with the liquid outlet hole 111, the liquid in the accommodating chamber 100 can flow out through the liquid outlet nozzle 14. When it is necessary to discharge liquid, the liquid outlet nozzle 14 is rotated so that the liquid outlet channel 141 in the liquid outlet nozzle 14 is aligned with the liquid outlet hole 111 on the upper shell 11, and the shell 1 is tilted so that the liquid in the accommodating chamber 100 flows through the liquid outlet hole 111 to the liquid outlet channel 141 for pouring out. When it is not necessary to discharge liquid, the shell 1 is rotated and the liquid outlet nozzle 14 is rotated so that the liquid outlet hole 111 contacts the side wall surface of the liquid outlet nozzle 14, and liquid cannot be discharged. The structure is simple and the operation is convenient.

[0058] The housing 1 is provided with a handle portion 15 for easy holding. The upper housing 11 is provided with a handle portion 15 for easy holding.

[0059] Example 5: Figure 8 As shown, the difference between this embodiment and the first embodiment is that the pressing member 12 is a gland, and an elastic reset element 13 is provided between the pressing member 12 and the conduit 2, which enables the pressing member 12 to move upward and reset relative to the upper shell 11. The elastic reset element 13 is a compression spring, one end of which is connected to the conduit 2, and the other end is provided on the avoidance surface of the pressing member 12. The pressing member 12 is a gland, and the elastic reset element 13 enables the pressing member 12 to move upward and reset relative to the upper shell 11 when no force is applied, which is easy to operate.

[0060] The upper shell 11 is provided with a liquid outlet hole 111 communicating with the accommodating chamber 100, and the upper shell 11 is also provided with a liquid outlet nozzle 14, and a liquid outlet channel 141 is provided in the liquid outlet nozzle 14, and when the liquid outlet nozzle 14 rotates relative to the upper shell 11 to align the liquid outlet channel 141 with the liquid outlet hole 111, the liquid in the accommodating chamber 100 can flow out through the liquid outlet nozzle 14. When it is necessary to discharge liquid, the liquid outlet nozzle 14 is rotated so that the liquid outlet channel 141 in the liquid outlet nozzle 14 is aligned with the liquid outlet hole 111 on the upper shell 11, and the shell 1 is tilted so that the liquid in the accommodating chamber 100 flows through the liquid outlet hole 111 to the liquid outlet channel 141 for pouring out. When it is not necessary to discharge liquid, the shell 1 is rotated and the liquid outlet nozzle 14 is rotated so that the liquid outlet hole 111 contacts the side wall surface of the liquid outlet nozzle 14, and liquid cannot be discharged. The structure is simple and the operation is convenient.

[0061] Liquid can also be discharged through the catheter 2 by moving the catheter 2 downward until the catheter 2 is immersed below the liquid surface of the accommodating chamber 100, and then pressing the pressing piece 12 downward to press out the solution on the tube mouth of the catheter 2. By controlling the height of the pressing piece 12, the liquid can be discharged quantitatively, and the operation is simple.

[0062] Example 6: Fig. 9 As shown, the difference between this embodiment and the first embodiment is that the pressing member 12 is a gland, and an elastic reset element 13 is provided between the pressing member 12 and the conduit 2, which enables the pressing member 12 to move upward and reset relative to the upper shell 11. The elastic reset element 13 is a compression spring, one end of which is connected to the conduit 2, and the other end is provided on the avoidance surface of the pressing member 12. The pressing member 12 is a gland, and the elastic reset element 13 enables the pressing member 12 to move upward and reset relative to the upper shell 11 when no force is applied, which is easy to operate.

[0063] The upper shell 11 is provided with a liquid outlet hole 111 communicating with the accommodating chamber 100, and the upper shell 11 is also provided with a liquid outlet nozzle 14, and a liquid outlet channel 141 is provided in the liquid outlet nozzle 14, and when the liquid outlet nozzle 14 rotates relative to the upper shell 11 to align the liquid outlet channel 141 with the liquid outlet hole 111, the liquid in the accommodating chamber 100 can flow out through the liquid outlet nozzle 14. When it is necessary to discharge liquid, the liquid outlet nozzle 14 is rotated so that the liquid outlet channel 141 in the liquid outlet nozzle 14 is aligned with the liquid outlet hole 111 on the upper shell 11, and the shell 1 is tilted so that the liquid in the accommodating chamber 100 flows through the liquid outlet hole 111 to the liquid outlet channel 141 for pouring out. When it is not necessary to discharge liquid, the shell 1 is rotated and the liquid outlet nozzle 14 is rotated so that the liquid outlet hole 111 contacts the side wall surface of the liquid outlet nozzle 14, and liquid cannot be discharged. The structure is simple and the operation is convenient.

[0064] The upper shell 11 is integrally formed with the liquid inlet pipe 3 and the conduit 2 .

[0065] The housing 1 is provided with a handle portion 15 for easy holding. The upper housing 11 is provided with a handle portion 15 for easy holding.

[0066] Example 7: Fig.10 As shown, the difference between this embodiment and the first embodiment is that the pressing member 12 is a gland, and an elastic reset element 13 is provided between the pressing member 12 and the conduit 2, which enables the pressing member 12 to move upward and reset relative to the upper shell 11. The elastic reset element 13 is a compression spring, one end of which is connected to the conduit 2, and the other end is provided on the avoidance surface of the pressing member 12. The pressing member 12 is a gland, and the elastic reset element 13 enables the pressing member 12 to move upward and reset relative to the upper shell 11 when no force is applied, which is easy to operate.

[0067] The upper shell 11 is provided with a liquid outlet hole 111 communicating with the accommodating chamber 100, and the upper shell 11 is also provided with a liquid outlet nozzle 14, and a liquid outlet channel 141 is provided in the liquid outlet nozzle 14, and when the liquid outlet nozzle 14 rotates relative to the upper shell 11 to align the liquid outlet channel 141 with the liquid outlet hole 111, the liquid in the accommodating chamber 100 can flow out through the liquid outlet nozzle 14. When it is necessary to discharge liquid, the liquid outlet nozzle 14 is rotated so that the liquid outlet channel 141 in the liquid outlet nozzle 14 is aligned with the liquid outlet hole 111 on the upper shell 11, and the shell 1 is tilted so that the liquid in the accommodating chamber 100 flows through the liquid outlet hole 111 to the liquid outlet channel 141 for pouring out. When it is not necessary to discharge liquid, the shell 1 is rotated and the liquid outlet nozzle 14 is rotated so that the liquid outlet hole 111 contacts the side wall surface of the liquid outlet nozzle 14, and liquid cannot be discharged. The structure is simple and the operation is convenient.

[0068] The upper shell 11 is integrally formed with the liquid inlet pipe 3 and the conduit 2 .

[0069] Example 8: Fig.11 As shown, the difference between this embodiment and embodiment 1 is that:

[0070] The upper shell 11 is also provided with a connecting middle cover 5 which is detachably provided thereon and can be connected to the mouth of the container. The conduit 2 is passed through the connecting middle cover 5, and the liquid inlet pipe 3 is integrally formed with the connecting middle cover 5. The conduit 2 is also provided with a connecting cover 4 which is detachably connected thereto and can be connected to the mouth of the container. Part of the liquid inlet pipe 3 is passed through the connecting cover 4. The connecting middle cover 5 and the connecting cover 4 double cooperate to fix the conduit 2. The connecting middle cover 5 is connected to the upper shell 11 to seal the accommodating cavity 100. The connecting cover 4 is connected to the mouth of the container. The connecting middle cover 5 and the connecting cover 4 cooperate to have better stability.

[0071] The connecting middle cover 5 is provided with a handle portion 15 for easy holding.

[0072] Example 9: Figures 12 to 13 As shown, the difference between this embodiment and embodiment 1 is that:

[0073] The upper shell 11 is also provided with a connecting middle cover 5 which is detachably provided thereon and can be connected to the mouth of the container, the conduit 2 is passed through the connecting middle cover 5, and the liquid inlet pipe 3 is integrally formed with the connecting middle cover 5. The conduit 2 is also provided with a connecting cover 4 which is detachably connected thereto and can be connected to the mouth of the container, and part of the liquid inlet pipe 3 is passed through the connecting cover 4. The conduit 2 can move relative to the connecting cover 4 and the connecting middle cover 5.

[0074] The connecting middle cover 5 is provided with a liquid storage cavity 500 which can be communicated with the accommodating cavity 100, the connecting middle cover 5 is provided with a positioning channel 51 for the catheter 2 to pass through, the wall surface of the positioning channel 51 is provided with a liquid outlet 511 which is communicated with the liquid storage cavity 500, and the catheter 2 is provided with an outflow hole 22 which allows the solution in the liquid storage cavity 500 to flow out through the catheter 2 when the catheter 2 rotates relative to the connecting middle cover 5 and aligns with the liquid outlet 511.

[0075] The connecting middle cover 5 is also provided with a rotating member capable of directly or indirectly rotating the conduit 2. During operation, the rotating member and the conduit 2 are connected or clamped, and then the user holds the rotating member by hand and rotates it so that the outflow hole 22 of the conduit 2 can be aligned with the liquid outlet 511, thereby preventing the user from directly holding the conduit 2 by hand and contaminating the conduit 2, causing hygiene problems.

[0076] When it is necessary to pour the liquid, the shell 1 is tilted so that the solution in the accommodating chamber 100 can enter the liquid storage chamber 500, and then the catheter 2 is rotated so that the outflow hole 22 on the catheter 2 is aligned with the liquid outlet 511 on the wall of the positioning channel 51, so that the liquid passes through the liquid outlet 511 and the outflow hole 22 from the liquid storage chamber 500 and is poured out from the catheter 2. When it is not necessary to pour the liquid, the catheter 2 is rotated so that the outflow hole 22 is misaligned with the liquid outlet 511, the liquid outlet 511 contacts the wall of the catheter 2, and the outflow hole 22 contacts the wall of the positioning channel 51, so that the liquid cannot flow out from the liquid outlet 511, and the liquid discharge is prevented.

[0077] The housing 1 is provided with a handle portion 15 for easy holding. The upper housing 11 is provided with a handle portion 15 for easy holding.

[0078] Example 10: Figures 14 to 15 As shown, the difference between this embodiment and embodiment 1 is that:

[0079] The upper shell 11 is also provided with a connecting middle cover 5 which is detachably provided thereon and can be connected to the mouth of the container, the conduit 2 is passed through the connecting middle cover 5, and the liquid inlet pipe 3 is integrally formed with the connecting middle cover 5. The conduit 2 is also provided with a connecting cover 4 which is detachably connected thereto and can be connected to the mouth of the container, and part of the liquid inlet pipe 3 is passed through the connecting cover 4. The conduit 2 can move relative to the connecting cover 4 and the connecting middle cover 5.

[0080] The connecting middle cover 5 is provided with a liquid storage cavity 500 which can be communicated with the accommodating cavity 100, the connecting middle cover 5 is provided with a positioning channel 51 for the catheter 2 to pass through, the wall surface of the positioning channel 51 is provided with a liquid outlet 511 which is communicated with the liquid storage cavity 500, and the catheter 2 is provided with an outflow hole 22 which allows the solution in the liquid storage cavity 500 to flow out through the catheter 2 when the catheter 2 rotates relative to the connecting middle cover 5 and aligns with the liquid outlet 511.

[0081] The connecting middle cover 5 is also provided with a rotating member capable of directly or indirectly rotating the conduit 2. During operation, the rotating member and the conduit 2 are connected or clamped, and then the user holds the rotating member by hand and rotates it so that the outflow hole 22 of the conduit 2 can be aligned with the liquid outlet 511, thereby preventing the user from directly holding the conduit 2 by hand and contaminating the conduit 2, causing hygiene problems.

[0082] When it is necessary to pour the liquid, the shell 1 is tilted so that the solution in the accommodating chamber 100 can enter the liquid storage chamber 500, and then the catheter 2 is rotated so that the outflow hole 22 on the catheter 2 is aligned with the liquid outlet 511 on the wall of the positioning channel 51. After the liquid passes through the liquid outlet 511 and the outflow hole 22 from the liquid storage chamber 500, it is poured out from the catheter 2. When it is not necessary to pour the liquid, the catheter 2 is rotated so that the outflow hole 22 is misaligned with the liquid outlet 511, the liquid outlet 511 contacts the wall of the catheter 2, and the outflow hole 22 contacts the wall of the positioning channel 51, the liquid cannot flow out from the liquid outlet 511, and the liquid discharge is prevented.

[0083] The housing 1 is provided with a handle portion 15 for easy holding. The pressing portion 12 is provided with a handle portion 15 for easy holding.

Claims

1. A liquid pumping device, characterized in that: The invention comprises a shell (1) having a receiving cavity (100) and being connectable to a container mouth, the shell (1) being provided with a conduit (2) enabling the receiving cavity (100) to communicate with the inner cavity of the container, the shell (1) being further provided with a liquid inlet pipe (3) communicating with the receiving cavity (100) and being insertable below the liquid level of the solution in the inner cavity of the container, the liquid inlet pipe (3) being provided with a first valve (31) capable of preventing liquid from flowing back from the receiving cavity (100) to the inner cavity of the container, the shell (1) comprising an upper shell (11) being connectable to the container mouth, and a pressing member (12) being movably disposed on the upper shell (11) and cooperating with the upper shell (11) to form the receiving cavity (100); A sealing member (16) is provided between the pressing member (12) and the upper shell (11); The upper shell (11) is also provided with a connecting middle cover (5) which is detachably arranged thereon and can be connected to the mouth of the container, the conduit (2) is passed through the connecting middle cover (5), and the liquid inlet pipe (3) and the connecting middle cover (5) are integrally formed; The conduit (2) is also provided with a connection cover (4) which is detachably connected thereto and can be connected to the mouth of a container, and a portion of the liquid inlet pipe (3) is passed through the connection cover (4).

2. The liquid extraction device according to claim 1, characterized in that: The pressing piece (12) is a pressure cover, and an elastic reset element (13) is provided between the pressing piece (12) and the conduit (2) and is capable of causing the pressing piece (12) to move upward and reset relative to the upper shell (11).

3. The liquid extraction device according to claim 1, characterized in that: The pressing member (12) is a pressure pump capable of generating elastic deformation.

4. The liquid extraction device according to claim 1, characterized in that: The upper shell (11) is provided with a liquid outlet hole (111) which is in communication with the accommodating chamber (100), and the upper shell (11) is also provided with a liquid outlet nozzle (14), wherein a liquid outlet channel (141) is provided in the liquid outlet nozzle (14), and when the liquid outlet nozzle (14) rotates relative to the upper shell (11) so that the liquid outlet channel (141) is aligned with the liquid outlet hole (111), liquid in the accommodating chamber (100) can flow out through the liquid outlet nozzle (14).

5. The liquid extraction device according to claim 1, characterized in that: A second valve (21) capable of connecting or disconnecting the accommodating cavity (100) and the inner cavity of the container is provided in the conduit (2).

6. The liquid extraction device according to claim 5, characterized in that: The second valve (21) is arranged on the inner wall of the air inlet of the conduit (2) located in the accommodating chamber (100).

7. The liquid extraction device according to any one of claims 1 to 6, characterized in that: The connecting middle cover (5) is provided with a liquid storage chamber (500) capable of communicating with the accommodating chamber (100), the connecting middle cover (5) is provided with a positioning channel (51) capable of allowing the catheter (2) to pass through, a liquid outlet (511) communicating with the liquid storage chamber (500) is provided on the wall surface of the positioning channel (51), and the catheter (2) is provided with an outflow hole (22) for allowing the solution in the liquid storage chamber (500) to flow out through the catheter (2) when the catheter (2) rotates relative to the connecting middle cover (5) and aligns with the liquid outlet (511).

8. The liquid extraction device according to claim 1, characterized in that: The connecting middle cover (5) is provided with a handle portion (15) for easy gripping.

9. The liquid extraction device according to claim 1, characterized in that: The housing (1) is provided with a handle portion (15) for easy gripping.

Images