Push-type dual-mixing micro pump head

Abstract

The present invention relates to a push-type dual-mixing micro pump head, which is designed to solve the technical problems of the existing similar products with small application range, poor versatility, sealing and stability. The key points are that a raised inner liquid cavity is provided at one end of the bottom of the inner warehouse large circle of the micro pump head, a bottle mouth sleeve is provided on the outer side of the other end of the top of the inner warehouse large circle, the inner diameter of the sleeve mouth of the bottle mouth sleeve of the inner warehouse large circle is provided with an internal thread, and the outer diameter of the sleeve mouth of the bottle mouth sleeve of the inner warehouse large circle is provided with a middle ring, the liquid inlet pipe in the head cap is sleeved with the valve stem of the vacuum pump core assembly, and the outer diameter of the blocked sealing ring is sealed with the cavity mouth of the inner liquid cavity of the inner warehouse large circle; the inner plug of the vacuum pump core assembly is raised at the connection with the pump body and is fixed in the buckle groove in the top hole of the sealing bayonet seat, and the head cap drives the vacuum pump core assembly and the sealing bayonet seat to move downward together, and at the same time, the blockage at the bottom of the vacuum pump core assembly moves downward and is limited to the inner buckle groove of the sealing bayonet seat, and the inner liquid cavity of the inner warehouse large circle can be opened.

Description

Technical Field

[0001] The invention relates to a micro pump head for a container bottle, in particular to a pressing type double-mixing micro pump head. Background Art

[0002] Container bottles refer to bottles used to hold liquids such as water, lotion, and emulsion. For the convenience of using liquids, such bottles are equipped with emulsion pumps (vacuum pumps), head caps and other parts at the mouth of the bottle. Some of these container bottles are equipped with inner bottle structures in order to facilitate the mixing of two materials in the bottle, so that the materials in the inner bottle can be mixed with the materials in the bottle body before use. Some of such containers are currently used in lotion bottles with straws, such as the application number 202110430610.5 disclosed in the Chinese patent document, the application publication date 2021.06.22, and the invention name “Lotion double-material liquid outlet container”; another example is the application number 201921395424.7 disclosed in the Chinese patent document, the authorization announcement date 2020.07.03, and the utility model name “A double-chamber mixed liquid outlet bottle”; other such containers are used in vacuum bottle containers with pistons, such as the application number 201520299856.3 disclosed in the Chinese patent document, the authorization announcement date 2015.09.09, and the utility model name “A double-chamber mixed vacuum bottle”; another example is the application number 202021667654.7 disclosed in the Chinese patent document, the authorization announcement date 2021.06.01, and the utility model name “A double-chamber vacuum mixing cosmetic packaging container”. However, the pump heads of the above-mentioned products and similar products have poor versatility, are difficult to be used in vacuum bottles and lotion bottles at the same time, and have poor sealing and stability. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a push-type dual-mixing micro pump head to the art, which mainly solves the technical problems of the existing similar products with a small application range, poor versatility, sealing and stability. The purpose is achieved through the following technical solutions.

[0004] A push-type double-mixing micro pump head, a raised inner liquid cavity is provided at one end of the bottom of an inner chamber large circle of the micro pump head, a bottle mouth sleeve is provided on the outer side of the other end of the top of the inner chamber large circle, an inner thread is provided on the inner diameter of the sleeve opening at the bottle mouth sleeve of the inner chamber large circle, a gasket is provided on the annular groove on the top of the bottle mouth sleeve at the inner thread, a middle circle is provided on the outer diameter of the sleeve opening at the bottle mouth sleeve of the inner chamber large circle, a liquid inlet pipe in the head cap is sleeved with a valve stem of a vacuum pump core assembly, a plug is provided at the channel opening below the liquid inlet hole on the pump body of the vacuum pump core assembly, a sleeve opening protruding upward in the middle of the plug is buckled and fixed to the liquid inlet hole of the pump body, and the outer diameter of the sealing ring of the plug is sealed with the cavity opening of the inner liquid cavity of the inner chamber large circle. The key points of its structural design are that the inner plug of the vacuum pump core assembly is raised at the connection with the pump body and is fixed in the snap groove in the top hole of the sealing bayonet seat, the outer diameter of the snap groove of the sealing bayonet seat is provided with a stroke groove, the outer diameter of the top hole of the stroke groove is provided with a raised limit rib, the outer diameter of the sealing bayonet seat below the stroke groove is provided with piston ribs with arc-shaped protrusions at both ends, the stroke groove of the sealing bayonet seat is snap-fitted and fixed to the center hole at the other end of the top of the inner warehouse large circle, and the piston ribs of the sealing bayonet seat are respectively sealed against the inner wall of the inner liquid cavity of the inner warehouse large circle. The top circle of the above-mentioned middle circle is conical, the cover mouth of the outer cover is snap-fitted with the outer diameter of the large circle, the outer cover and the bottle body are cylindrical, and the gasket structure is set as needed. When the head cap is pressed, the head cap drives the vacuum pump core assembly and the sealing bayonet seat to move downward together. At the same time, the blockage at the bottom of the vacuum pump core assembly moves downward and is limited to the inner buckle groove of the sealing bayonet seat, and the inner liquid cavity of the inner warehouse large circle can be opened. During the above operation, since the sealing bayonet seat is arranged in the inner warehouse large circle, it is difficult to move the vacuum pump core assembly and the sealing bayonet seat upward again to seal the inner liquid cavity of the inner warehouse large circle after the inner warehouse large circle is opened once.

[0005] The other end of the top of the inner warehouse large circle is provided with a raised fixing rib on the outer diameter of the bottle mouth sleeve, and the outer diameter of the bottle mouth sleeve of the inner warehouse large circle above the fixing rib is provided with a gear ring smaller than the fixing rib, and the inner diameter of the ring mouth of the middle circle is provided with a fixing groove, and the inner wall of the middle circle above the fixing groove is provided with equidistantly distributed positioning ribs; the fixing rib of the inner warehouse large circle is buckled and fixed to the fixing groove of the middle circle, and the gear ring of the inner warehouse large circle is inserted and fixed to the positioning rib of the middle circle. The above structure facilitates the fixing and connection of the middle circle and the inner warehouse large circle, and facilitates the overall assembly and filling.

[0006] The inner wall below the snap groove of the sealing bayonet seat is provided with a raised pump body rib, and the outer diameter of the pump body below the connection between the inner plug of the vacuum pump core assembly and the pump body is provided with a pump body groove, and the connection between the inner plug of the vacuum pump core assembly and the pump body is raised and snap-fastened to the snap groove in the top hole of the sealing bayonet seat, and the pump body rib of the sealing bayonet seat cooperates with the pump body groove of the pump body for sealing. The above structure facilitates the assembly and sealing between the vacuum pump core assembly and the sealing bayonet seat.

[0007] The vacuum pump core assembly has an elastic sleeve at the channel opening above the liquid inlet hole in the pump body. When the valve needle and the valve stem in the pump body are locked, a small piston between one end of the valve stem and the valve needle is clamped and fixed. A spring is provided at the outer diameter of the other end of the valve stem extending out of the inner plug. One end of the spring abuts against the bottom of the outer diameter of the outer diameter of the top of the valve stem, and the other end of the spring abuts against the bottom of the spring cavity protruding from the top of the inner plug. The outer cavity of the valve stem is in the spring cavity of the inner plug. The above is a structural embodiment of a vacuum pump core assembly.

[0008] An upwardly protruding annular platform is provided on the outer side of the joint between the sleeve of the plug and the pump body of the vacuum pump core assembly, and the plug is sealed against the cavity opening of the inner liquid cavity of the inner chamber large circle through the outer edge of the annular platform, and the outer ring rib of the annular platform is sealed against the inner diameter of the cavity opening of the inner liquid cavity of the inner chamber large circle. The above structure is a structural embodiment of the plug, which further improves the sealing between the plug and the inner chamber large circle.

[0009] The inner thread of the inner bin large circle is connected with the outer thread of the top bottle mouth of the bottle body, a large piston is arranged in the bottle body, and a bottom cover is arranged at the bottom bottle mouth of the bottle body. The above is an embodiment of the application of the micro pump head in a vacuum bottle.

[0010] The vacuum pump core assembly is replaced by a lotion pump core assembly, the plug is replaced by a straw plug, the straw plug is provided with a straw, an air inlet is provided on one side of the pump body of the lotion pump core assembly, the internal thread of the large circle of the inner bin is connected with the external thread of the top bottle mouth of the blister bottle, and the straw extends into the blister bottle. The above is an embodiment of the application of the micro pump head in a lotion bottle.

[0011] The straw plug is replaced by a plug, and the straw is fixed to the plug through the straw sleeve, thereby further improving the versatility of the vacuum pump core assembly, and the vacuum pump core assembly can be used for a vacuum bottle without replacing the plug.

[0012] When the head cap drives the vacuum pump core assembly to move downward, the vacuum pump core assembly drives the blocking and sealing bayonet seat to move downward, the bottom cavity of the inner liquid cavity of the inner chamber large circle is opened, and the travel groove of the sealing bayonet seat moves to the limiting rib, and the limiting rib of the sealing bayonet seat is limited to the central hole of the inner chamber large circle. The above is the specific use method of the micro pump head.

[0013] The invention has reasonable structural design, is easy to assemble, use and carry, has good versatility, sealing and stability, and is simple to operate for mixing and opening; it is suitable for use as a push-type double-mixing micro pump head for vacuum bottles and lotion bottles, and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the explosion structure of Example 1 of the present invention.

[0015] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure in the explosion state.

[0016] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure in the assembly state.

[0017] Figure 4 It is a schematic cross-sectional structural diagram of the first embodiment of the present invention applied to a vacuum bottle.

[0018] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the mixed state operation.

[0019] Figure 6 It is a schematic cross-sectional view of the structure of the second embodiment of the present invention applied to a lotion bottle.

[0020] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure of the improved structural part in the exploded state.

[0021] Serial number and name of the attached drawings: 1. Outer cover, 2. Head cap, 3. Middle circle, 301. Positioning rib, 302. Fixed groove, 4. Vacuum pump core assembly, 401. Pump body, 402. Inner plug, 403. Valve stem, 404. Spring, 405. Small piston, 406 Valve needle, 407. Elastic sleeve, 5. Sealing bayonet seat, 501. Buckle groove, 502. Pump body rib, 503. Limiting rib, 504. Piston rib, 6. Gasket, 7. Inner chamber large circle, 701. Center hole, 702. Gear ring, 703. Fixed rib, 8. Inner plug blockage, 9. Bottle body, 10. Large piston, 11. Bottom cover, 12. Emulsion pump core assembly, 13. Straw blockage, 14. Straw, 15. Blister bottle, 16. Straw sleeve. DETAILED DESCRIPTION

[0022] Now, the structure and use of the present invention will be further described in conjunction with the accompanying drawings. Figure 1-Figure 5In the illustrated embodiment 1, a raised inner liquid cavity is provided at one end of the bottom of the inner chamber large circle 7 of the micro pump head, a bottle mouth sleeve is provided on the outer side of the other end of the top of the inner chamber large circle, an inner thread is provided on the inner diameter of the sleeve opening at the bottle mouth sleeve of the inner chamber large circle, a gasket 6 is provided on the annular groove on the top of the bottle mouth sleeve at the inner thread, a middle circle 3 is provided on the outer diameter of the sleeve opening at the bottle mouth sleeve of the inner chamber large circle, a liquid inlet pipe in the head cap 2 is fitted with the valve stem 403 of the vacuum pump core assembly 4, a plug 8 is provided at the lower channel opening at the liquid inlet hole on the pump body 401 of the vacuum pump core assembly, a sleeve opening protruding upward in the middle of the plug is snap-fitted and fixed to the liquid inlet hole of the pump body, and the outer diameter of the sealing ring of the plug is sealed with the cavity opening of the inner liquid cavity of the inner chamber large circle. The connection between the inner plug 402 of the vacuum pump core assembly and the pump body 401 is raised and snap-fastened to the snap groove 501 in the top hole of the sealing bayonet seat 5, the outer diameter of the snap groove of the sealing bayonet seat is provided with a travel groove, the outer diameter of the top hole of the travel groove is provided with a raised limiting rib 503, and the outer diameter of the sealing bayonet seat below the travel groove is provided with a piston rib 504 with arc-shaped protrusions at both ends, the travel groove of the sealing bayonet seat is snap-fitted and fixed to the center hole 701 at the other end of the top of the inner warehouse large circle. At the same time, the piston ribs of the sealing bayonet seat are respectively sealed against the inner wall of the inner liquid cavity of the inner warehouse large circle. The top opening of the above-mentioned large circle is conical, the cover opening of the outer cover 1 is buckled with the outer diameter of the large circle, and the outer cover is connected to the bottle body in a cylindrical shape; while the head cap drives the vacuum pump core assembly to move downward, the vacuum pump core assembly drives the blocking and sealing bayonet seat to move downward, the bottom opening of the inner liquid cavity of the inner warehouse large circle is opened, and the travel groove of the sealing bayonet seat moves to the limiting rib, and the limiting rib of the sealing bayonet seat is limited to the center hole of the inner warehouse large circle.

[0023] The outer diameter of the sleeve opening of the bottle mouth sleeve at the other end of the top of the above-mentioned inner warehouse large circle is provided with a raised fixing rib 703, and the outer diameter of the bottle mouth sleeve of the inner warehouse large circle above the fixing rib is provided with a gear ring 702 smaller than the fixing rib, and the inner diameter of the ring opening of the middle circle is provided with a fixing groove 302, and the inner wall of the middle circle above the fixing groove is provided with equidistantly distributed positioning ribs 301; the fixing rib of the inner warehouse large circle is buckled and fixed to the fixing groove of the middle circle, and the gear ring of the inner warehouse large circle is inserted and fixed to the positioning rib of the middle circle. The inner wall below the buckle groove of the sealing bayonet seat is provided with a raised pump body rib 502, and the outer diameter of the pump body below the connection between the inner plug of the vacuum pump core assembly and the pump body is provided with a pump body groove, and the connection between the inner plug of the vacuum pump core assembly and the pump body is raised and buckled and fixed to the buckle groove inside the top hole of the sealing bayonet seat, and the pump body rib of the sealing bayonet seat cooperates with the pump body groove of the pump body to seal. An elastic sleeve 407 is provided at the upper channel opening of the liquid inlet hole in the pump body of the vacuum pump core assembly. When the valve needle 406 is buckled with the valve stem in the pump body, a small piston 405 is clamped and fixed between one end of the valve stem and the valve needle. A spring 404 is provided at the outer diameter of the other end of the valve stem extending out of the inner plug. One end of the spring abuts against the bottom of the outer diameter of the outer cavity of the top of the valve stem, and the other end of the spring abuts against the bottom of the spring cavity protruding from the top of the inner plug. The outer cavity of the valve stem is in the spring cavity of the inner plug. An upwardly protruding annular platform is provided on the outer side of the plugging sleeve and the pump body of the vacuum pump core assembly. The plugging is sealed by the outer edge of the annular platform against the cavity opening of the inner liquid cavity of the inner warehouse large circle. At the same time, the outer ring rib of the annular platform abuts against the inner diameter of the cavity opening of the inner liquid cavity of the inner warehouse large circle. The inner thread of the inner warehouse large circle is connected with the outer thread of the top bottle mouth of the bottle body 9. A large piston 10 is provided in the bottle body, and a bottom cover 11 is provided at the bottom bottle mouth of the bottle body.

[0024] like Figure 6 In the second embodiment shown, the vacuum pump core assembly is replaced by a lotion pump core assembly 12, the plug is replaced by a straw plug 13, the straw plug is provided with a straw 14, an air inlet is provided on one side of the pump body of the lotion pump core assembly, the internal thread of the large circle of the inner bin is connected with the external thread of the top bottle mouth of the blister bottle 15, the straw extends into the blister bottle, and the other structures of the lotion pump core assembly are basically the same as those of the vacuum pump core assembly. According to the above structural features, Figure 7 As shown, the straw plug can also be replaced by a plug, and the straw is fixed to the plug by a straw sleeve 16.

[0025] The specific assembly method of the vacuum bottle type of the micro pump head is as follows: for the nozzle assembly, first install the piston rib of the sealing bayonet seat from the bottom opening of the inner warehouse large circle upwards, the shoulder of the sealing bayonet seat is against the shoulder of the inner warehouse large circle, and the limiting rib of the sealing bayonet seat is interference-sealed with the center hole of the large circle; then press the pump core assembly from the top of the sealing bayonet seat, the inner plug of the pump core assembly and the pump body connection are in place with the buckle groove of the bayonet sealing bayonet seat, and the outer diameter of the pump body below the inner plug of the pump core assembly and the pump body connection is interference-sealed with the pump body rib of the bayonet sealing bayonet seat; finally, install the gasket from the bottom of the large circle and press it into place, press the middle circle from the top of the inner warehouse large circle, the fixing groove of the middle circle and the fixing rib buckle position of the inner warehouse large circle are strongly buckled into place, and the positioning rib of the middle circle cooperates with the gear ring of the inner warehouse large circle to play a role in stopping rotation; the head cap and the valve stem of the pump core assembly are buckled and sealed to complete the assembly of the nozzle. To assemble the bottle body, first install the piston from the bottom of the bottle body, the sealing rib of the piston fits with the inner wall of the bottle body in an interference seal, then install the bottom cover from the bottom of the bottle body, the buckle position of the bottom cover fits with the buckle position of the bottle body and snaps into place, and the bottle body is assembled after being pressed and fixed.

[0026] The specific filling steps of the vacuum bottle type of the micro pump head are as follows: first fill the first liquid into the bottle body assembly, invert the nozzle assembly, and fill the second liquid into the large circle of the inner chamber; after the filling is completed, install the plug from the tail mouth of the pump core assembly, the buckle position of the plug and the buckle position of the pump core assembly are strongly buckled into place, and an interference seal is formed, and the sealing rib of the plug and the sealing surface of the large circle are interference sealed; finally, screw the nozzle assembly from the top of the bottle body assembly, screw the internal thread of the nozzle assembly into the external thread of the bottle body assembly to the bottom, the gasket and the bottle mouth of the bottle body are interference sealed, the outer cover is pressed in from the top of the middle circle, the outer cover and the middle circle are matched into place, and the finished product assembly is completed when they are pressed into place.

[0027] The functional principle of the micro pump head is as follows: Press the head cap to drive the pump core assembly and the sealing bayonet seat to move down a distance until the shoulder of the sealing bayonet seat abuts against the shoulder of the inner chamber large circle, so that the blockage is separated from the large circle, and the second liquid in the inner chamber large circle flows out and mixes with the first liquid in the bottle body. After shaking the product, the two materials are mixed. After the mixture is evenly mixed, the head cap is pressed normally to discharge the liquid, and the normal use function of the product is realized. The assembly method, filling steps, and functional principle of the lotion and vacuum bottle models of the micro pump head are similar.

[0028] In summary, the micro pump head is used in vacuum bottles and lotion bottles. It is used in cosmetic packaging materials to isolate and seal two different liquids, and then mix them by pressing to use them. It is a new way of use. The double-material sealing matching method of the micro pump head allows two liquids to be filled, isolated and sealed separately in one container. Pressing the head cap drives the pump core assembly and the blockage to move down, so that the blockage is separated from the large circle, and the liquid in the large circle can flow out and mix with the liquid in the bottle body, so that the pump core function can be used normally.

Claims

1. A push-type dual-mix micro pump head, wherein a raised inner liquid cavity is provided at one end of the bottom of the inner chamber large circle (7) of the micro pump head, a bottle mouth sleeve is provided on the outer side of the other end of the top of the inner chamber large circle, an inner thread is provided at the inner diameter of the sleeve opening at the bottle mouth sleeve of the inner chamber large circle, a gasket (6) is provided at the annular groove at the top of the bottle mouth sleeve at the inner thread, a middle ring (3) is provided at the outer diameter of the sleeve opening at the bottle mouth sleeve of the inner chamber large circle, a liquid inlet pipe in the head cap (2) is fitted with the valve stem (403) of the vacuum pump core assembly (4), a plug (8) is provided at the lower channel opening at the liquid inlet hole on the pump body (401) of the vacuum pump core assembly, the sleeve opening protruding upward in the middle of the plug is buckled and fixed to the liquid inlet hole of the pump body, and the outer diameter of the sealing ring of the plug is sealed with the cavity opening of the inner liquid cavity of the inner chamber large circle; characterized in that The inner plug (402) of the vacuum pump core assembly (4) is raised at the connection with the pump body (401) and is snap-fastened to the snap-fastening groove (501) in the top opening of the sealing bayonet seat (5); the outer diameter of the snap-fastening groove of the sealing bayonet seat is provided with a travel groove, the outer diameter of the top opening of the travel groove is provided with a raised limiting rib (503), and the outer diameter of the sealing bayonet seat below the travel groove is provided with a piston rib (504) with arc-shaped protrusions at both ends; the travel groove of the sealing bayonet seat is snap-fastened to the center hole (701) at the other end of the top of the inner chamber large circle (7); at the same time, the piston ribs of the sealing bayonet seat are respectively abutted against the inner wall of the inner liquid cavity of the inner chamber large circle for sealing.

2. The push-type dual-mix micro pump head according to claim 1, characterized in that A raised fixing rib (703) is provided on the outer diameter of the bottle mouth sleeve at the other end of the top of the inner bin large circle (7), a gear ring (702) smaller than the fixing rib is provided on the outer diameter of the bottle mouth sleeve of the inner bin large circle above the fixing rib, a fixing groove (302) is provided on the inner diameter of the ring mouth of the middle circle (3), and equidistantly distributed positioning ribs (301) are provided on the inner wall of the middle circle above the fixing groove; the fixing rib of the inner bin large circle is buckled and fixed in the fixing groove of the middle circle, and the gear ring of the inner bin large circle is inserted and fixed in the positioning rib of the middle circle.

3. The push-type dual-mix micro pump head according to claim 1, characterized in that A raised pump body rib (502) is provided on the inner wall below the snap groove (501) of the sealing bayonet seat (5); a pump body groove is provided on the outer diameter of the pump body below the connection between the inner plug (402) of the vacuum pump core assembly (4) and the pump body (401); the inner plug of the vacuum pump core assembly protrudes at the connection with the pump body and is snap-fastened to the snap groove (501) in the top opening of the sealing bayonet seat (5); at the same time, the pump body rib of the sealing bayonet seat cooperates with the pump body groove of the pump body for sealing.

4. The push-type dual-mix micro pump head according to claim 1, characterized in that An elastic sleeve (407) is provided at the channel opening above the liquid inlet hole in the pump body (401) of the vacuum pump core assembly (4). When the valve needle (406) is locked with the valve stem (403) in the pump body, a small piston (405) is clamped and fixed between one end of the valve stem and the valve needle. A spring (404) is provided on the outer diameter of the other end of the valve stem extending out of the inner plug (402). One end of the spring abuts against the bottom of the outer diameter of the outer diameter of the top of the valve stem, and the other end of the spring abuts against the bottom of the spring cavity protruding from the top of the inner plug. The outer cavity of the valve stem is in the spring cavity of the inner plug.

5. The push-type dual-mix micro pump head according to claim 1, characterized in that An upwardly protruding annular platform is provided on the outer side of the portion where the sleeve of the plug (8) is engaged with the pump body of the vacuum pump core assembly (4). The plug is sealed against the cavity opening of the inner liquid cavity of the inner chamber large circle (7) through the outer edge of the annular platform. At the same time, the outer ring rib of the annular platform is sealed against the inner diameter of the cavity opening of the inner liquid cavity of the inner chamber large circle.

6. The push-type dual-mix micro pump head according to claim 1, characterized in that The internal thread of the large inner bin ring (7) is connected to the external thread of the top bottle mouth of the bottle body (9), a large piston (10) is provided in the bottle body, and a bottom cover (11) is provided at the bottom bottle mouth of the bottle body.

7. The push-type dual-mix micro pump head according to claim 1, characterized in that The vacuum pump core assembly (4) is replaced by a lotion pump core assembly (12), the plug (8) is replaced by a straw plug (13), the straw plug is provided with a straw (14), one side of the pump body of the lotion pump core assembly is provided with an air inlet hole, the internal thread of the inner bin large circle (7) is connected with the external thread of the top bottle mouth of the blister bottle (15), and the straw extends into the blister bottle.

8. The push-type dual-mix micro pump head according to claim 7, characterized in that The straw plug (13) is replaced by a plug (8), and the straw (14) is fixed to the plug via a straw sleeve (16).

9. The push-type dual-mix micro pump head according to claim 1, characterized in that The head cap (2) drives the vacuum pump core assembly (4) to move downward, and at the same time, the vacuum pump core assembly drives the plug (8) and the sealing bayonet seat (5) to move downward, the bottom cavity opening of the inner liquid cavity of the inner chamber large circle (7) is opened, and the travel groove of the sealing bayonet seat moves to the limiting rib (503), and the limiting rib of the sealing bayonet seat is limited to the central hole (701) of the inner chamber large circle.

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