Liquid outlet mechanism of liquid distributor

Abstract

The present invention provides a liquid discharge mechanism for a liquid dispenser, belonging to the technical field of drinking equipment. It solves the problem of high manufacturing cost of the liquid discharge mechanism of the existing liquid dispenser. The liquid discharge mechanism of the liquid dispenser comprises a shell, a liquid discharge pipe with an outer end extending out of the shell, and a handle provided outside the shell. The liquid discharge mechanism also comprises an extension pipe sleeved on the outer end of the liquid discharge pipe, a blocking structure is provided between the inner hole of the extension pipe and the inner hole of the liquid discharge pipe, which can control the connection or disconnection of the two when the extension pipe slides, the handle is slidably connected or hinged to the outside of the shell, one end of the handle is provided with a matching portion located on the side of the extension pipe, and a guide structure is provided between the matching portion and the extension pipe, which can drive the extension pipe to slide when the handle slides or swings. The liquid discharge mechanism of the liquid dispenser has the advantages of simple structure and low manufacturing cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of drinking equipment and relates to a liquid dispenser, in particular to a liquid discharge mechanism of the liquid dispenser. Background Art

[0002] With the continuous improvement of people's living standards, beer has become an indispensable drink in people's daily leisure activities and business activities. At the same time, people have higher requirements for the way they drink beer. More and more people prefer to drink hygienic, fresh and delicious pure draft beer. Currently, draft beer on the market is usually packed in barrels and then dispensed using a special machine or device, namely a liquid dispenser.

[0003] Traditional liquid dispensers generally include a shell and a top core fixed to the shell. Depending on the mode of use, the shell can be set to be placed on a flat surface for use as a base or directly connected to a wine barrel for use. The top core is provided with an air inlet channel and a liquid outlet channel. The outlet of the liquid outlet channel is connected to the wine outlet pipe. The shell is provided with a booster mechanism that can supply air to the air inlet channel of the top core. When in use, the wine barrel is connected to the shell, the top core is inserted into the wine barrel to open the air path and the wine path, and then the booster mechanism is used to inflate and pressurize the wine barrel through the air inlet channel of the top core, so that the wine in the wine barrel can be pumped out through the liquid outlet channel and the liquid outlet pipe in turn for use. The wine discharge depends on the internal pressure of the wine barrel. When the internal pressure of the wine barrel is full, the wine will flow out continuously, which will undoubtedly cause waste of wine for the user.

[0004] To better control the amount of liquid, the most common solution for those skilled in the art is to directly connect a faucet to the end of the liquid outlet pipe, such as the pneumatic wine dispenser disclosed in patent application number 03214278.1 or the beer dispensing device disclosed in patent application number 201910740181.4. However, most faucets are made of metal except for the internal valve core, which undoubtedly increases the manufacturing cost of the entire liquid dispenser. In this case, the conventional option is to replace the faucet with a lighter or cheaper material. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a liquid outlet mechanism for a liquid distributor, thereby solving the problem of high manufacturing cost.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The liquid outlet mechanism of the liquid dispenser includes a shell, and the liquid outlet mechanism includes a liquid outlet tube with an outer end extending out of the shell and a handle arranged outside the shell. It is characterized in that the liquid outlet mechanism also includes an extension tube mounted on the outer end of the liquid outlet tube, and a blocking structure is provided between the inner hole of the extension tube and the inner hole of the liquid outlet tube, which can control the connection or disconnection of the two when the extension tube slides. The handle is slidably connected or hinged to the outside of the shell, and one end of the handle is provided with a matching portion located on the side of the extension tube, and a guide structure is provided between the matching portion and the extension tube, which can drive the extension tube to slide when the handle slides or swings.

[0008] The blocking structure disconnects the passage between the inner hole of the extension tube and the inner hole of the liquid outlet tube as the initial state. When liquid needs to be discharged, the control handle is slid or swung, and the handle directly drives the extension tube to slide via the guide structure provided between the mating portion and the extension tube, thereby causing the blocking structure to open the passage between the inner hole of the liquid outlet tube and the inner hole of the extension tube, thereby connecting them and allowing liquid to flow. When closing is required, the control handle is slid or swung in the opposite direction, and the extension tube slides in the opposite direction under the action of the guide structure, thereby causing the blocking structure to re-disconnect the passage between the inner hole of the extension tube and the inner hole of the liquid outlet tube.

[0009] In this liquid dispensing mechanism, a handle is slidably connected or hinged to the exterior of the housing. An extension tube is mounted on the outer end of the liquid dispensing tube, which, when slid, controls the connection or disconnection between the inner hole of the liquid dispensing tube and the inner hole of the extension tube. A mating portion at one end of the handle is positioned on the side of the extension tube, and a guide structure is provided between the two. This guide structure directly translates the sliding or swinging motion of the handle into the sliding motion of the extension tube, thereby controlling the liquid dispensing. Compared to using the entire faucet to control the liquid dispensing, this liquid dispensing mechanism only utilizes the coordination of the handle and the extension tube, omitting at least the valve body and valve core of the faucet, thereby significantly reducing manufacturing costs.

[0010] In the liquid outlet mechanism of the above-mentioned liquid distributor, the blocking structure includes a plug. When the extension tube slides, the blocking structure realizes liquid outlet control by changing the position of the plug relative to the liquid outlet tube or the extension tube.

[0011] The plug is provided to block the inner hole of the liquid outlet pipe or the inner hole of the extension pipe, thereby isolating the passage between the extension pipe and the liquid outlet pipe. When the extension pipe slides, the position of the plug relative to the extension pipe or the liquid outlet pipe changes, thereby opening the inner hole of the liquid outlet pipe or the inner hole of the extension pipe and connecting the passage between the extension pipe and the liquid outlet pipe.

[0012] In the liquid outlet mechanism of the above-mentioned liquid distributor, a positioning sleeve is fixed in the extension tube, and the plug is fixedly connected to the inner side of the positioning sleeve through a number of connecting strips. The blocking structure also includes an external port of the liquid outlet tube. When the extension tube slides, the plug can be blocked in the external port of the liquid outlet tube or separated from the external port of the liquid outlet tube.

[0013] When the extension tube slides and the plug is blocked in the outer port of the liquid outlet pipe, the liquid outlet pipe is blocked and no liquid is discharged. When the extension tube slides and the plug is separated from the outer port of the liquid outlet pipe, the outer port of the liquid outlet pipe is opened and liquid can be discharged.

[0014] In the liquid outlet mechanism of the above-mentioned liquid distributor, the inner hole of the extension tube includes hole one and hole two arranged on the same center line, the aperture of hole two is larger than the aperture of hole one, the outer end of the liquid outlet tube is passed through hole two, and the plug is connected to the outer end of the liquid outlet tube through a number of branches. When the extension tube slides, the plug can be blocked in hole one or retracted into hole two.

[0015] As the extension tube slides, the relative position between the extension tube and the plug changes. With the plug positioned in hole one of the extension tube, the passage between the inner hole of the liquid outlet tube and the inner hole of the extension tube is cut off. When the extension tube slides so that the plug is positioned in hole two, the passage between the inner hole of the liquid outlet tube and the inner hole of the extension tube is opened, as the diameter of hole two is larger than that of hole one.

[0016] In the liquid discharge mechanism of the above-mentioned liquid dispenser, the guide structure includes a strip-shaped guide groove provided on the mating part and a convex head provided on the side of the extension tube. The guide groove is arranged at an angle, the convex head is located in the guide groove and can slide along the convex head when the handle slides or swings.

[0017] The convex head is located in the guide groove. When the handle slides or swings, the guide groove will move relative to the convex head. Since the guide groove is arranged at an angle, the side wall of the guide groove can exert a thrust on the convex head during the movement of the guide groove relative to the convex head, thereby causing the extension tube to slide relative to the liquid outlet tube to control the liquid discharge.

[0018] In the liquid discharge mechanism of the above-mentioned liquid dispenser, as another technical solution, the guide structure includes a protrusion provided on the mating part and a strip-shaped guide groove provided on the side of the extension tube. The guide groove is arranged at an angle, the protrusion is located in the guide groove and can slide along the guide groove when the handle slides or swings.

[0019] The convex head is located in the guide groove. When the handle slides or swings, the convex head will slide along the guide groove. Since the guide groove is set at an angle, the convex head will exert thrust on the side wall of the guide groove during the movement of the convex head relative to the guide groove, thereby causing the extension tube to slide relative to the liquid outlet tube to control the liquid discharge.

[0020] The cooperation between the convex head and the guide groove enables the handle to directly drive the extension tube to slide to control the opening or closing of the liquid outlet tube, further simplifying the overall structure of the liquid outlet mechanism and reducing manufacturing costs; and the transmission process is more concise, improving the stability of liquid outlet control.

[0021] In the liquid dispensing mechanism of the liquid dispenser, the guide groove includes an inclined guide section and positioning sections connected to both ends of the guide section, and both positioning sections are straight sections parallel to the sliding direction of the handle.

[0022] The angled guide section allows the handle to slide or swing directly, driving the extension tube relative to the liquid outlet tube, simplifying the structure of the liquid outlet mechanism. Furthermore, by providing two straight positioning sections, the protruding head snaps into the positioning sections after the handle drives the extension tube to slide, keeping the extension tube stably in its slid position. This approach maintains the control stability of a faucet while significantly reducing manufacturing costs.

[0023] In the liquid outlet mechanism of the above-mentioned liquid distributor, the matching portion is U-shaped, the matching portion is sleeved outside the extension tube, and the number of the protrusion and the number of the guide groove are both two.

[0024] The U-shaped mating portion cooperates with the extension tube, making it easier and more stable to push the extension tube to slide when the handle slides or swings.

[0025] In the liquid discharge mechanism of the above-mentioned liquid dispenser, the handle includes a long block-shaped handle body, the matching part is integrally connected to one end of the handle body, and a slide groove with a T-shaped cross-section is provided on one side of the handle body. The slide groove is connected to the opening of the matching part, and at least one matching block that matches the slide groove is fixed to the outside of the shell.

[0026] During assembly, the mating block slides from the opening of the mating portion into the handle's sliding groove, allowing the handle to form a sliding connection with the housing. The guide groove and protrusion then mate between the handle and the extension tube, allowing the extension tube to slide as the handle slides, controlling liquid flow. Furthermore, the block-shaped handle provides increased mechanical strength, making it less susceptible to damage from excessive drinking and exertion.

[0027] In the liquid dispensing mechanism of the liquid dispenser, a notch communicating with one of the positioning sections is provided on the inner side of the end of the matching portion, and the protrusion is inserted into the guide groove from the notch.

[0028] A notch is provided on the inner side of the end of the mating portion and is connected to one of the positioning sections. The protrusion can be inserted into the guide groove from the notch, so that a guide structure can be formed between the protrusion and the guide groove to drive the extension tube to slide when the handle is moved.

[0029] In the liquid discharge mechanism of the above-mentioned liquid dispenser, a limit pin is fixed in the handle body between the two side groove walls parallel to the slide groove. The limit pin is arranged close to the matching part. When the handle slides in the opposite direction of causing the protrusion to be stuck in the guide groove from the notch, the limit pin can abut against the matching block.

[0030] When the handle slides in the opposite direction of the protrusion being inserted into the guide groove from the notch, the limit pin abuts against the matching block to control the sliding distance of the handle, thereby preventing the protrusion from being directly disengaged from the handle through the notch, thereby reducing manufacturing costs while ensuring structural reliability.

[0031] Compared with the prior art, the liquid dispensing mechanism of this liquid dispenser has the following advantages:

[0032] 1. Liquid discharge can be controlled simply by combining the handle and the extension tube with a guide structure disposed therebetween, thus greatly simplifying the overall structure of the liquid discharge mechanism and reducing manufacturing costs.

[0033] 2. The guide groove includes an inclined guide section and a positioning section connected to both ends of the guide section. The guide section is used to enable the extension tube to slide, and the positioning end ensures that the extension tube can be stably maintained in the sliding state. This not only maintains the control stability of a faucet, but also greatly reduces the manufacturing cost.

[0034] 3. The block shape of the handle makes it more mechanically strong, and it is not easy to damage the handle when the user drinks too much and exerts too much force. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the first embodiment of the liquid outlet mechanism of the liquid distributor.

[0036] Figure 2 It is a cross-sectional view of the liquid discharging mechanism of the liquid dispenser in the liquid discharging state in the first embodiment.

[0037] Figure 3 This is a cross-sectional view of the extension pipe and the liquid outlet pipe in the liquid outlet mechanism of the liquid distributor (the cross-sectional view direction is the same as that of the liquid outlet pipe). Figure 2 perpendicular to each other).

[0038] Figure 4 This is a schematic diagram of the coordination between the handle and the extension tube in the first embodiment of the liquid outlet mechanism of the liquid dispenser.

[0039] Figure 5 It is a schematic diagram of the handle in the first embodiment of the liquid discharge mechanism of the liquid dispenser.

[0040] Figure 6 It is a schematic diagram of the shell in the first embodiment of the liquid outlet mechanism of the liquid distributor.

[0041] Figure 7 This is a cross-sectional view of the liquid outlet mechanism embodiment 1 of the liquid dispenser in a non-liquid discharging state.

[0042] In the figure, 1. shell; 1a. working chamber; 1b. connecting chamber; 1c. snap-fitting ridge; 1d. matching block; 2. top core; 2a. air inlet channel; 2b. liquid outlet channel; 3. liquid outlet pipe; 4. extension pipe; 4a. convex head; 5. handle; 5a. handle body; 5a1. slide groove; 5a2. operating part; 5b. matching part; 5b1. guide groove; 5b11. guide section; 5b12. positioning section; 5b2. notch; 6. limit pin; 7. piston; 8. spring; 9. plug; 10. positioning sleeve; 11. connecting strip. DETAILED DESCRIPTION

[0043] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0044] Example 1

[0045] like Figure 1 and Figure 2 The liquid dispensing mechanism of the liquid dispenser is shown. The liquid dispenser comprises a cylindrical housing 1 with a working chamber 1a at its top. A piston 7 is slidably disposed within the working chamber 1a. A spring 8 is provided within the working chamber 1a, which exerts a spring force on the piston 7, causing it to move upward. A connecting chamber 1b is provided at the bottom of the housing 1. Several engaging protrusions 1c are circumferentially distributed at the mouth of the connecting chamber 1b. Engaging gaps are formed between the engaging protrusions 1c and the top wall of the connecting chamber 1b, and engaging notches 5b2 are formed between adjacent engaging protrusions 1c. A cylindrical top core 2 is provided within the connecting chamber 1b. An air inlet channel 2a and a liquid outlet channel 2b are provided within the top core 2. The outlet of the liquid outlet channel 2b is located on the side of the top core 2, and the inlet of the liquid outlet channel 2b is located at the bottom of the top core 2. The inlet of the air inlet channel 2a is located at the top of the top core 2 and communicates with the working chamber 1a. The outlet of the air inlet channel 2a is located at the side of the bottom end of the top core 2.

[0046] like Figure 2 and Figure 3As shown, the liquid discharge mechanism includes a liquid discharge pipe 3 whose inner end is inserted into the outlet of the liquid discharge channel 2b and whose outer end extends out of the side of the shell 1, and an extension pipe 4 which is sleeved on the outer end of the liquid discharge pipe 3. A blocking structure is provided between the inner hole of the extension pipe 4 and the inner hole of the liquid discharge pipe 3, which can control the connection or disconnection of the two when the extension pipe 4 slides. Specifically, the blocking structure includes a plug 9, a positioning sleeve 10 is fixed in the extension pipe 4, the plug 9 is located on the inner side of the positioning sleeve 10, and the plug 9 and the positioning sleeve 10 are fixedly connected by a number of connecting strips 11. Among them, the outer diameter of the plug 9 is smaller than the inner diameter of the positioning sleeve 10, the connecting strip 11 is L-shaped, the positioning sleeve 10 is sleeved on the outside of the liquid discharge pipe 3, and the blocking structure also includes the outer port of the liquid discharge pipe 3. When the extension pipe 4 slides, the plug 9 can be blocked in the outer port of the liquid discharge pipe 3 or separated from the outer port of the liquid discharge pipe 3. In this embodiment, the inner diameter of the outer port of the liquid outlet pipe 3 is smaller than the diameter of the inner hole of the liquid outlet pipe 3 , and the plug 9 is specifically inserted into the inner hole of the liquid outlet pipe 3 to open the outer port of the liquid outlet pipe 3 .

[0047] like Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the liquid discharge mechanism also includes a handle 5 disposed outside the housing 1. The handle 5 is slidably connected to the outside of the housing 1. One end of the handle 5 is provided with a mating portion 5b located on the side of the extension tube 4. A guide structure is provided between the mating portion 5b and the extension tube 4, which can drive the extension tube 4 to slide when the handle 5 slides. The guide structure includes a strip-shaped guide groove 5b1 provided on the mating portion 5b and a protrusion 4a provided on the side of the extension tube 4. The guide groove 5b1 is arranged at an angle, and the protrusion 4a is located within the guide groove 5b1. When the handle 5 slides, the guide groove 5b1 can slide along the protrusion 4a. The guide groove 5b1 specifically includes an inclined guide section 5b11 and positioning sections 5b12 connected to both ends of the guide section 5b11. Both positioning sections 5b12 are straight sections parallel to the sliding direction of the handle 5.

[0048] like Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown, the handle 5 further comprises an elongated, block-shaped handle body 5a, with a mating portion 5b integrally connected to one end of the handle body 5a. The mating portion 5b is U-shaped and fits over the extension tube 4. There are two protrusions 4a and two guide grooves 5b1. The other end of the handle body 5a has a block-shaped operating portion 5a2. A side surface of the handle body 5a is provided with a T-shaped cross-sectional slot 5a1, which communicates with the opening of the mating portion 5b. At least one mating block 1d is fixedly attached to the outside of the housing 1, mating with the slot 5a1. Reinforcing ribs are fixedly attached between the mating block 1d and the housing 1, enhancing the connection strength between the mating block 1d and the housing 1. Specifically, the handle 5 in this embodiment is capable of sliding vertically up and down relative to the housing 1. During assembly, the mating block 1d is slid from the opening of the mating portion 5b into the slot 5a1 of the handle 5, forming a sliding connection between the handle 5 and the housing 1. The inner side of the end of the mating portion 5b is provided with a notch 5b2 that communicates with one of the positioning sections 5b12. The protrusion 4a engages within the guide groove 5b1 through the notch 5b2. A limit pin 6 is fixed within the handle 5a, between two parallel groove walls of the guide groove 5a1. The limit pin 6 is located near the mating portion 5b. When the handle 5 is slid in the direction opposite to the direction that caused the protrusion 4a to engage the guide groove 5b1 from the notch 5b2, the limit pin 6 abuts against the mating block 1d.

[0049] The liquid dispenser can be used to dispense beverages. For example, a wine barrel with a wine spear is used. During installation, the engaging notch 5b2 formed at the mouth of the connecting chamber 1b is aligned with the block-shaped portion at the end of the wine spear, so that the lower portion of the housing 1 fits over the end of the wine spear. The housing 1 is then rotated so that the block-shaped portion of the wine spear slides circumferentially into the engaging gap, securing the housing 1 and the wine spear. Simultaneously, the lower end of the top core 2 pokes open the one-way valve in the wine spear, simultaneously opening both the air and wine passages. This allows the user to pressurize the wine barrel through the working chamber 1a and the air inlet passage 2a by repeatedly pressing the piston 7, causing the wine in the barrel to be automatically pumped out through the liquid outlet passage 2b on the top core 2.

[0050] like Figure 7As shown, the initial state is that the plug 9 is blocked in the outer port of the liquid outlet pipe 3. At this time, liquid cannot be discharged because the outer port of the liquid outlet pipe 3 is blocked by the plug 9. When liquid needs to be discharged, the user controls the handle 5 to slide, and the matching part 5b will move relative to the protrusion 4a, causing relative movement between the guide groove 5b1 and the protrusion 4a. Since the guide section 5b11 in the guide groove 5b1 is tilted, when the handle 5 slides, the side wall of the guide section 5b11 will exert a force on the protrusion 4a, thereby pushing the extension tube 4 to slide inward relative to the liquid outlet pipe 3, so that the plug 9 extends from the outer port of the liquid outlet pipe 3 into the liquid outlet pipe 3. Since the diameter of the outer port of the liquid outlet pipe 3 is smaller than the inner diameter of the liquid outlet pipe 3, the plug 9 will not block the inside of the liquid outlet pipe 3 and the outer port of the liquid outlet pipe 3 will be opened, so that the liquid can smoothly flow from the liquid outlet pipe 3 into the extension tube 4 and finally flow out. The state after the outer port of the liquid outlet pipe 3 is opened is shown as follows. Figure 2 When liquid is no longer needed, the user only needs to control the handle 5 to slide in the opposite direction, so that the extension tube 4 slides outward under the cooperation between the protrusion 4a and the guide groove 5b1, and the plug 9 will be blocked in the outer port of the liquid outlet tube 3 again, so that the liquid can no longer flow into the extension tube 4.

[0051] Example 2

[0052] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the guide structure includes a protrusion provided on the mating portion 5b and a strip-shaped guide groove provided on the side of the extension tube 4. The guide groove is inclined, the protrusion is located in the guide groove, and when the handle 5 slides or swings, the protrusion can slide along the guide groove.

[0053] Example 3

[0054] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the handle 5 is hinged to the housing 1 .

[0055] Example 4

[0056] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the inner hole of the extension tube 4 includes hole one and hole two arranged on the same center line, the aperture of hole two is larger than the aperture of hole one, the outer end of the liquid outlet tube 3 is passed through hole two, and the plug 9 is connected to the outer end of the liquid outlet tube 3 through a plurality of branches. When the extension tube 4 slides, the plug 9 can be blocked in hole one or retracted into hole two.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A liquid dispensing mechanism of a liquid dispenser, the liquid dispenser comprising a housing (1), the liquid dispensing mechanism comprising a liquid dispensing tube (3) with an outer end extending out of the housing (1) and a handle (5) provided outside the housing (1), characterized in that: The liquid discharge mechanism further comprises an extension tube (4) sleeved on the outer end of the liquid discharge tube (3); a blocking structure is provided between the inner hole of the extension tube (4) and the inner hole of the liquid discharge tube (3) to control the connection or disconnection between the two when the extension tube (4) slides; a handle (5) is slidably connected or hinged to the outer side of the shell (1); one end of the handle (5) is provided with a matching portion (5b) located on the side of the extension tube (4); the matching portion (5b) is U-shaped, and the matching portion (5b) is sleeved on the outside of the extension tube (4). A guide structure is provided between the portion (5b) and the extension tube (4), which can drive the extension tube (4) to slide when the handle (5) slides or swings. The guide structure comprises a strip-shaped guide groove (5b1) provided on the matching portion (5b) and a convex head (4a) provided on the side of the extension tube (4). The guide groove (5b1) is inclined, and the convex head (4a) is located in the guide groove (5b1). When the handle (5) slides or swings, the guide groove (5b1) can slide along the convex head (4a).

2. The liquid outlet mechanism of the liquid dispenser according to claim 1, characterized in that: The blocking structure includes a plug (9), and when the extension tube (4) slides, the blocking structure realizes liquid discharge control by changing the position of the plug (9) relative to the liquid discharge tube (3) or the extension tube (4).

3. The liquid outlet mechanism of the liquid dispenser according to claim 2, characterized in that: A positioning sleeve (10) is fixed inside the extension tube (4), and a plug (9) is fixedly connected to the inner side of the positioning sleeve (10) via a plurality of connecting strips (11). The blocking structure also includes an outer port of the liquid outlet pipe (3). When the extension tube (4) slides, the plug (9) can be blocked in the outer port of the liquid outlet pipe (3) or separated from the outer port of the liquid outlet pipe (3).

4. The liquid outlet mechanism of the liquid dispenser according to claim 2, characterized in that: The inner hole of the extension tube (4) includes a hole 1 and a hole 2 arranged on the same center line. The diameter of the hole 2 is larger than the diameter of the hole 1. The outer end of the liquid outlet tube (3) is inserted into the hole 2. The plug (9) is connected to the outer end of the liquid outlet tube (3) through a plurality of branches. When the extension tube (4) slides, the plug (9) can be blocked in the hole 1 or retracted into the hole 2.

5. The liquid outlet mechanism of the liquid dispenser according to claim 1 or 2, characterized in that: The guide groove (5b1) comprises an inclined guide section (5b11) and positioning sections (5b12) connected to both ends of the guide section (5b11), and both positioning sections (5b12) are straight sections parallel to the sliding direction of the handle (5).

6. The liquid outlet mechanism of the liquid dispenser according to claim 5, characterized in that: The number of the protrusions (4a) and the number of the guide grooves (5b1) are both two.

7. The liquid outlet mechanism of the liquid dispenser according to claim 6, characterized in that: The handle (5) comprises a long block-shaped handle body (5a), a matching portion (5b) integrally connected to one end of the handle body (5a), a slide groove (5a1) with a T-shaped cross section is provided on one side of the handle body (5a), the slide groove (5a1) is connected to the opening of the matching portion (5b), and at least one matching block (1d) matching with the slide groove (5a1) is fixedly connected to the outside of the shell (1).

8. The liquid outlet mechanism of the liquid dispenser according to claim 7, characterized in that: A notch (5b2) communicating with one of the positioning sections (5b12) is provided on the inner side of the end of the matching portion (5b), and the protrusion (4a) is inserted into the guide groove (5b1) from the notch (5b2).

9. The liquid outlet mechanism of the liquid dispenser according to claim 8, characterized in that: A limit pin (6) is fixed between two parallel groove walls of the slide groove (5a1) in the handle body (5a). The limit pin (6) is arranged close to the matching portion (5b). When the handle (5) slides in the opposite direction of causing the protrusion (4a) to be inserted into the guide groove (5b1) from the notch (5b2), the limit pin (6) can abut against the matching block (1d).

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