Cosmetic container two-way valve head and extrusion bottle thereof

Abstract

The utility model relates to a two-way valve head of a cosmetic container and an extrusion bottle of the two-way valve head, which are designed aiming at solving the technical problem that in the using process of the existing similar products, when spray holes face downwards, contents can not be controlled to discharge liquid under the action of gravity. A main body of the two-way valve head is a two-way valve body assembly, the two-way valve head comprises the two-way valve body assembly, a large ring and a nozzle, an upper cavity groove in the top of the large ring is connected with one end of the nozzle, and a liquid drainage hole is formed in the center in a large ring middle sleeve of the large ring; the bidirectional valve body assembly is characterized in that a large elastic sleeve, an inner plug and a small elastic sleeve which are sequentially installed in the bidirectional valve body assembly are arranged in an upper cavity groove in the top of the large ring, the center of the large elastic sleeve and the center of the small elastic sleeve are respectively provided with a diaphragm which jumps up and down along with the change of pressure intensity, and a lower center hole in the position of the diaphragm of the large elastic sleeve is communicated with an upper center hole of the inner plug. A gap channel arranged between the inner wall of the inner plug and the outer diameter of the small elastic sleeve abuts against the membrane of the large elastic sleeve, the membrane of the small elastic sleeve abuts against the upper center hole of the inner plug, and an annular hollow channel is arranged in the inner plug.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cosmetic bottle container, and is a cosmetic container bidirectional valve head and squeeze bottle thereof. BACKGROUND

[0002] Squeeze bottles refer to bottle containers that discharge liquid through squeezing, such as lotion bottles, eye drop bottles, seasoning bottles, powder spraying bottles, nasal washers, nursing liquid bottles, and ointment bottles. Some of the squeeze bottles are used for storing and taking out gelatinous liquid or coagulated liquid such as lotion in cosmetics. For example, the patent document CN118119456A, published on May 31, 2024, with the invention name "squeeze bottle dispenser with operating safety device", discloses a squeeze bottle with an outer bottle as a protective sleeve on the inner bottle, and an outer shell connected to the inner bottle mouth on the outer diameter of the discharge head. Some squeeze bottles use a plug tube as a nozzle and as an inner plug at the bottle mouth of the bottle body. For example, the patent document CN117049006A, published on November 14, 2023, with the invention name "inner plug and squeeze bottle with the same", discloses a squeeze bottle with a plug tube as a nozzle and as an inner plug at the bottle mouth of the bottle body. However, in the use process of the above-mentioned products and existing squeeze bottles, the contents will be discharged uncontrollably under the action of gravity when the spray hole is downward. SUMMARY

[0003] To overcome the above-mentioned shortcomings, the utility model aims to provide a cosmetic container bidirectional valve head and squeeze bottle thereof, which solves the technical problem that the contents will be discharged uncontrollably under the action of gravity when the spray hole is downward in the use process of existing similar products. The purpose is achieved through the following technical solutions.

[0004] A cosmetic container bidirectional valve head, the main body of the bidirectional valve head is a bidirectional valve body assembly, the bidirectional valve head comprises a bidirectional valve body assembly, a large ring, and a nozzle, the upper cavity groove at the top of the large ring is buckled or threadedly connected with one end of the nozzle, and a discharge hole is arranged in the center of the large ring sleeve of the large ring; the structure design points of the bidirectional valve head are that a large elastic sleeve and an inner plug are sequentially arranged in the upper cavity groove at the top of the large ring, the center of the large elastic sleeve and the center of the inner plug are respectively provided with diaphragms that jump up and down with the change of pressure, the lower center hole of the diaphragm of the large elastic sleeve is communicated with the upper center hole of the inner plug, the gap channel between the inner wall of the inner plug and the outer diameter of the small elastic sleeve is arranged to abut against the diaphragm of the large elastic sleeve, and the diaphragm of the small elastic sleeve abuts against the upper center hole of the inner plug. Therefore, the bidirectional valve body assembly of the bidirectional valve head can be used in both upward and downward structures or horizontal structure, that is, the large elastic sleeve is sealed when the liquid pushes away the sealing surface of the diaphragm of the small elastic sleeve to discharge liquid, and at the same time, The small elastic sleeve is sealed when the sealing surface of the diaphragm of the large elastic sleeve is opened to return the liquid Figure 1 .

[0005] The diaphragm of the large and small elastic sleeves is integrally formed with the outer frame through an elastic grid, the diaphragm of the large elastic sleeve is aligned with the upper center hole of the inner plug, the upper center hole of the inner plug is arranged in the middle of the inner plug inner sleeve in the upwardly protruding inner plug inner sleeve bottom, the outer side of the inner plug inner sleeve is provided with an upwardly protruding inner plug outer sleeve, a hollow channel formed after being integrated is arranged between the inner plug outer sleeve and the inner plug inner sleeve, the hollow channel is in abutting sealing with the diaphragm plane outside the lower center hole of the large elastic sleeve at the bottom, and the diaphragm in the middle of the small elastic sleeve arranged in the inner plug inner sleeve of the inner plug is in abutting sealing with the upper center hole of the inner plug. The hollow channel is the gap channel. The above is a specific structure embodiment of the large elastic sleeve, the inner plug and the small elastic sleeve.

[0006] The nozzle is fixedly connected to the upper cavity groove at the top of the large ring, the inner plug is fixedly connected to the hole diameter of the nozzle in the upper cavity groove at the top of the large ring, and the large elastic sleeve is fixedly connected to the upper cavity groove at the top of the large ring, or the large elastic sleeve is fixedly connected to the upper cavity groove at the top of the large ring through the inner plug.

[0007] The upper cavity groove at the top of the large ring below the large elastic sleeve is provided with a liquid discharge hole smaller than the upper hole diameter, and the large elastic sleeve is fixedly connected and limited to the step of the large and small hole diameters in the upper cavity groove at the top of the large ring.

[0008] According to the structure characteristics of the bidirectional valve head, a squeeze bottle using the bidirectional valve head is provided. The squeeze bottle comprises a bottle body and an outer cover. The outer thread at the middle of the bottle mouth protruding upward at the top of the bottle body is connected with the inner thread at the middle of the large ring inner sleeve protruding downward at the bottom of the large ring, or the bottle mouth with an opening at the top of the bottle body is sleeved and sealingly connected with the ring mouth sleeve at the bottom of the large ring. The bottom cover mouth of the outer cover is buckled with the outer diameter of the large ring or the bottle body through the buckle rib of the cover mouth inner diameter. The large ring inner sleeve protrudes downward at the liquid discharge hole of the large ring, the large ring inner sleeve is sleeved with the top bottle mouth of the bottle body and is in interference sealing fit between the inner and outer walls, the inner thread at the outer side of the large ring inner sleeve is arranged on the inner wall of the large ring middle sleeve, and the large ring bottom at the outer side of the large ring middle sleeve is taken as the large ring outer sleeve. When the bottle mouth of the bottle body is connected with the large ring, the outer diameter of the large ring is flush with the outer diameter of the bottle body and the outer cover.

[0009] The bottom sleeve mouth at the bottom of the large ring middle sleeve is provided with limit grooves symmetrically arranged at both sides, the bottle mouth outer diameter step end below the outer thread of the bottle body is provided with a protruding limit block, and the limit grooves of the large ring are buckled and locked in the limit block of the bottle body when the outer thread of the bottle mouth is connected with the inner thread of the large ring in place. When the bottle body shape is an oval shape other than a circular shape corresponding to the large ring shape, the above structure is installed in place and locked in good effect, so that the outer diameter of the large ring is flush with the outer diameter of the bottle body and the outer cover.

[0010] The inner cover is provided with a nozzle hole in the center, and when the bottom cover opening of the outer cover is buckled with the outer diameter of the large circle or the bottle body, the nozzle of the top of the large circle penetrates the nozzle hole of the inner cover, and the nozzle hole of the top of the nozzle is sealed against the gasket on the top of the outer cover, and the gasket is arranged in the gasket groove on the top of the outer cover.

[0011] The large circle and the nozzle are integrated as a whole and are conical concave curved surfaces, the conical concave curved surfaces are provided with anti-side-bending gaps between the nozzle hole of the inner cover, and the anti-side-bending gaps between the nozzle hole of the inner cover and the nozzle and the large circle are respectively provided with two protruding anti-side-bending ring ribs, and the anti-side-bending ring ribs are respectively in abutment with the outer diameters of the nozzle and the large circle. The above structure prevents the connection between the nozzle and the large circle from being bent open when the inner cover and the outer cover are opened.

[0012] The inner wall of the inner cover and the nozzle hole are provided with a reinforcing rib which is connected and integrated between the cavity. The above structure reduces the production cost of the inner cover and improves the strength of the inner cover.

[0013] The outer diameter limiting block of the bottom cover opening of the inner cover exceeds the limiting rib on the inner wall of the outer cover and is buckled and limited. The above structure facilitates the rotation of the outer cover and the inner cover to a stop after rotation.

[0014] The utility model discloses a structure design is reasonable, convenient to use, production, good stability, long service life, and the anti -crush effect is good, it is suitable as based on cosmetic container bidirectional valve head, and the structural improvement of similar products. ACCURACY OF DRAWINGS

[0015] Figure 2 It is the explosion structure schematic diagram of the embodiment of the utility model, and the drawing includes bidirectional valve body assembly.

[0016] Figure 1 It is the enlarged top structure schematic diagram of the inner cover of Figure 3 .

[0017] Figure 1 It is the enlarged bottom structure schematic diagram of the large circle of Figure 4 .

[0018] Figure 3 It is the enlarged top structure schematic diagram of the large circle of Figure 5 .

[0019] Figure 1 It is the enlarged assembly state structure schematic diagram between the small elastic sleeve, the inner plug and the large elastic sleeve of Figure 6 .

[0020] Figure 5 It is the overhead structure schematic diagram of the inner plug of Figure 7 .

[0021] Figure 1 It is the explosion state section structure schematic diagram of Figure 8 .

[0022] Figure 7 is Figure 9 the assembled cross-sectional structure diagram, the part A is framed.

[0023] Figure 8 is Figure 10 the enlarged view of A.

[0024] Figure 7 is Figure 11 the intermediate liquid outlet state cross-sectional structure diagram, the arrow is the liquid outlet direction.

[0025] Figure 10 is Figure 12 the side view cross-sectional structure diagram.

[0026] Figure 7 is Figure 13 the both sides backflow state cross-sectional structure diagram, the arrow is the backflow direction.

[0027] Figure 12 is Figure 14 the side view cross-sectional structure diagram.

[0028] Figure 7 is Figures 1-13 the improved assembled cross-sectional structure diagram.

[0029] Figure number and name: 1, cover, 101, gasket groove, 102, limiting rib, 103, buckle rib, 2, gasket, 3, inner cover, 301, nozzle hole, 3011, side break prevention ring rib, 302, reinforcing rib, 4, nozzle, 5, small elastic sleeve, 6, inner plug, 601, upper center hole, 602, inner plug inner sleeve, 603, inner plug outer sleeve, 604, hollow channel, 7, large elastic sleeve, 701, lower center hole, 8, large ring, 801, large ring middle sleeve, 8011, limiting groove, 802, large ring inner sleeve, 803, drainage hole, 804, upper cavity groove, 9, bottle body, 901, limiting block. Embodiment

[0030] The structure of the utility model will be further described in combination with the drawings. As Figure 14As shown, the squeeze bottle includes a bottle body 9, a large ring 8, a nozzle 4, an inner cap 3, a gasket 2, an outer cover 1 and a bidirectional valve body assembly, the outer thread at the top of the bottle body is connected with the inner thread at the large ring middle downward protruding large ring middle sleeve 801, the upper cavity groove 804 at the top of the large ring is connected with the one end of the nozzle, the large ring middle sleeve inner center of the large ring is provided with a drainage hole 803, the bottom cover opening of the outer cover is buckled with the outer diameter of the large ring; the upper cavity groove at the top of the large ring is provided with a large elastic sleeve 7, an inner plug 6 and a small elastic sleeve 5 which are sequentially loaded into the bidirectional valve body assembly, the centers of the large elastic sleeve and the small elastic sleeve are respectively provided with a diaphragm which jumps up and down with the change of pressure, the lower center hole 701 at the diaphragm of the large elastic sleeve is communicated with the upper center hole 601 of the inner plug, at the same time, the gap channel between the inner wall of the inner plug and the outer diameter of the small elastic sleeve is in abutment with the diaphragm of the large elastic sleeve, the diaphragm of the small elastic sleeve is in abutment with the upper center hole of the inner plug. Specifically, the diaphragm of the large elastic sleeve and the small elastic sleeve is integrally formed with the outer frame through the elastic grid, the lower center hole 701 at the diaphragm of the large elastic sleeve is aligned with the upper center hole 601 of the inner plug, the upper center hole of the inner plug is arranged in the middle of the inner bottom of the upward protruding inner sleeve 602, the outer side of the inner sleeve 602 is provided with an upward protruding outer sleeve 603, the inner sleeve 603 and the inner sleeve 602 are provided with a hollow channel 604 which is formed after being connected as a whole, the hollow channel is in abutment and sealing with the diaphragm plane outside the lower center hole of the large elastic sleeve, the diaphragm at the middle of the small elastic sleeve which is fixedly arranged in the inner sleeve 602 of the inner plug is in abutment and sealing with the upper center hole of the inner plug; the hollow channel is the gap channel.

[0031] The nozzle is fixedly arranged in the upper cavity groove at the top of the large ring, at the same time, the inner plug is fixedly arranged in the nozzle hole diameter of the nozzle in the upper cavity groove at the top of the large ring, and the large elastic sleeve is fixedly arranged in the upper cavity groove at the top of the large ring. The upper cavity groove at the top of the large ring below the large elastic sleeve is provided with a drainage hole which is smaller than the upper hole diameter, and the large elastic sleeve is fixedly arranged and limited at the step of the large hole diameter in the upper cavity groove at the top of the large ring. The large ring inner sleeve 802 protrudes downward at the drainage hole of the large ring, the downward protruding outer diameter of the large ring inner sleeve is sleeved into the top bottle opening of the bottle body and is in interference sealing fit between the inner and outer walls, the inner thread on the outer side of the large ring inner sleeve is arranged on the inner wall of the large ring middle sleeve, and the large ring bottom ring opening on the outer side of the large ring middle sleeve is the large ring outer sleeve; when the outer thread at the bottle opening of the bottle body is connected with the inner thread of the large ring, the outer diameter of the large ring is flush with the outer diameter of the bottle body and the outer cover. The bottom sleeve opening at the large ring middle sleeve is symmetrically provided with a limiting groove 8011 on both sides, the limiting groove is correspondingly provided with a protruding limiting block 901 at the lower hole diameter step end of the bottle opening, and when the outer thread at the bottle opening of the bottle body is connected with the inner thread of the large ring, the limiting groove of the large ring is buckled and locked in the limiting block of the bottle body.

[0032] The outer cover has an inner cover with a nozzle hole 301 at its center. When the bottom opening of the outer cover is fastened to the outer diameter of the large ring, the nozzle at the top of the large ring passes through the nozzle hole of the inner cover. The nozzle hole at the top of the nozzle abuts against the gasket at the top of the outer cover, and the gasket is located in the gasket groove 101 at the top of the outer cover. The nozzle and the large ring are integrated into a conical concave curved surface. There is an anti-side-bending gap between the conical concave curved surface and the nozzle hole of the inner cover. At the same time, there are two raised anti-side-bending ring ribs 3011 at the anti-side-bending gap between the nozzle hole of the inner cover and the nozzle and the large ring, respectively. The anti-side-bending ring ribs abut against the outer diameter of the nozzle and the large ring, respectively. There are reinforcing ribs 302 that are interconnected and integrally formed in the cavity between the inner wall of the inner cover and the nozzle hole. The bottom opening of the inner cover has an outer diameter limiting block 901 that interlocks with the limiting rib 102 at the inner wall of the outer cover for fastening and limiting.

[0033] Based on the above structural characteristics, such as ​ As shown, the bottom opening of the outer cover of the squeeze bottle can also be fastened to the outer diameter of the bottle body through the snap ribs on the inner diameter of the opening. The bottle mouth at the top of the bottle body is connected to the ring mouth at the bottom of the large ring and sealed. The large spring sleeve is fixed and limited after being fastened to the upper cavity groove at the top of the large ring by the inner plug.

[0034] The assembly instructions for this squeeze bottle are as follows: Assemble the outer cap, glue the gasket groove on the top of the outer cover to the back of the gasket, and fix the limiting rib of the outer cover to the bottom opening of the inner cap to complete the assembly. The nozzle assembly is completed. The upper center hole of the inner plug is fixedly fitted with the small spring sleeve. The middle plane of the small spring sleeve is sealed and flush with the middle plane of the upper center hole of the inner plug. The outer diameter of the inner plug is fixedly fitted with the inner diameter of the nozzle orifice. The upper cavity groove of the large ring is fixedly fitted with the large spring sleeve. The nozzle assembly is completed. The outer diameter of the nozzle orifice is fixedly fitted with the groove at the upper cavity groove of the large ring. That is, the sealing rib at the inner diameter of the nozzle orifice is interference-sealed with the sealing surface at the groove at the upper cavity groove of the large ring. The middle plane of the large spring sleeve is sealed and flush with the upper center hole of the upper cavity groove of the inner plug. Finally, the snap rib at the bottom opening of the outer cover assembly is inserted into the outer diameter of the large ring to complete the assembly. At this time, the gasket at the top of the outer cover is interference-sealed with the nozzle orifice 401. The nozzle hole of the inner cover is clearance-fitted with the conical concave curved surface on the side of the nozzle and abuts against the anti-side-bending ring ribs on both sides of the inner diameter of the nozzle hole of the inner cover to prevent the outer cover from being easily broken apart. The finished product has the external thread at the top center of the bottle mouth and the internal thread at the bottom center of the large ring that bulges downwards, which are threaded together. The bottom cap of the inner cover has an interference fit with the limiting rib on the inner wall of the outer cover, and the inner wall of the bottle mouth is interference-sealed with the outer diameter of the inner ring of the large ring, thus completing the assembly.

[0035] The working principle of the squeeze bottle is as follows: the inner plug of the squeeze bottle is matched with two elastic sleeves respectively, the elastic sleeves have sealing and elastic functions, in the state of static and no external force, the elastic sleeves play the role of isolation and sealing; when the nozzle is squeezed downwards, the small elastic sleeve is opened and separated from the inner plug under the action of force, and the content goes out from the gap; after the squeezing is completed (no force), the large elastic sleeve is opened and separated from the inner plug under the action of air pressure (force), air enters from the gap, and the bottle body returns to the original state, that is, the repeated use is completed.

[0036] In summary, the structure of the squeeze bottle is a two-way valve structure, which isolates the content from the external air pressure, and only under the condition of squeezing the bottle body, the liquid is discharged, and the use quality is improved. The two-way valve head composed of the large ring, the large elastic sleeve, the inner plug, the small elastic sleeve and the nozzle of the cosmetic container can also be used in other cosmetic containers to prevent the corresponding cosmetic container from uncontrolled liquid discharge under the action of gravity during use.

Claims

1. A cosmetic container bidirectional valve head, the main body of the bidirectional valve head is a bidirectional valve body assembly, the bidirectional valve head comprises a bidirectional valve body assembly, a large ring (8) and a nozzle (4), an upper cavity groove (804) at the top of the large ring is connected with one end of the nozzle, and a liquid discharge hole (803) is arranged in the center of a large ring sleeve of the large ring; characterized in that The upper cavity groove (804) at the top of the large circle (8) is provided with a large elastic sleeve (7), an inner plug (6), and a small elastic sleeve (5) which are sequentially loaded into a two-way valve body assembly. The centers of the large elastic sleeve and the small elastic sleeve are respectively provided with diaphragms which jump up and down with pressure changes. The lower center hole (701) of the diaphragm of the large elastic sleeve is communicated with the upper center hole (601) of the inner plug. Meanwhile, the gap channel provided between the inner wall of the inner plug and the outer diameter of the small elastic sleeve is in abutment with the diaphragm of the large elastic sleeve. The diaphragm of the small elastic sleeve is in abutment with the upper center hole of the inner plug.

2. The cosmetic container bi-directional valve head of claim 1, wherein The diaphragms of the large elastic sleeve (7) and the small elastic sleeve (5) are integrally formed with the outer frame through an elastic grid. The lower center hole (701) of the diaphragm of the large elastic sleeve is aligned with the upper center hole (601) of the inner plug. The upper center hole of the inner plug (6) is arranged in the middle of the inner bottom of the upwardly protruding inner plug inner sleeve (602). The outer side of the inner plug inner sleeve of the inner plug is provided with an upwardly protruding inner plug outer sleeve (603). A hollow channel (604) is formed between the inner plug outer sleeve and the inner plug inner sleeve. The hollow channel is in abutment and sealing with the outer side diaphragm plane of the lower center hole of the large elastic sleeve. The diaphragm of the small elastic sleeve which is arranged in the middle of the inner plug inner sleeve of the inner plug is in abutment and sealing with the upper center hole of the inner plug. The hollow channel is the gap channel.

3. The cosmetic container dual-way valve head of claim 1, wherein The nozzle (4) is fixedly connected to the upper cavity groove (804) at the top of the large circle (8). Meanwhile, the inner plug (6) is fixedly connected to the inner diameter of the hole of the nozzle in the upper cavity groove at the top of the large circle. The large elastic sleeve (7) is fixedly connected to the upper cavity groove at the top of the large circle. Alternatively, the large elastic sleeve is fixedly connected to the upper cavity groove at the top of the large circle through the inner plug.

4. The cosmetic container dual-way valve head of claim 1, wherein The upper cavity groove (804) at the top of the large circle (8) is provided with a liquid discharge hole (803) which is smaller than the upper hole diameter. The large elastic sleeve is fixedly connected to the step of the large hole diameter in the upper cavity groove at the top of the large circle.

5. A squeeze bottle using the bidirectional valve head of the cosmetic container of claim 1, the squeeze bottle comprising a bottle body (9) and a cap (1); characterized in that The outer thread of the bottle mouth which is protruded in the middle of the top of the bottle body (9) is connected with the inner thread of the large circle inner sleeve (801) which is protruded downward in the middle of the inner bottom of the large circle. Alternatively, the bottle mouth which is opened at the top of the bottle body is sleeved and sealingly connected with the circle mouth at the bottom of the large circle. The bottom cover mouth of the cover (1) is buckled with the outer diameter of the large circle or the bottle body through the buckle rib (103) of the inner diameter of the cover mouth. The large circle inner sleeve (802) is protruded downward at the liquid discharge hole (803) of the large circle (8). The large circle inner sleeve is sleeved and interference sealingly fitted between the inner and outer walls of the top bottle mouth of the bottle body (9). The inner thread of the large circle inner sleeve is arranged on the inner wall of the large circle middle sleeve (801). The large circle bottom circle mouth at the outer side of the large circle middle sleeve is the outer sleeve of the large circle. When the bottle mouth of the bottle body is connected with the large circle, the outer diameter of the large circle is flush with the outer diameter of the bottle body and the cover.

6. The squeeze bottle of a cosmetic container bidirectional valve head according to claim 5, characterized in that The large circle middle sleeve (801) of the large circle (8) is provided with a limiting groove (8011) which is symmetrically arranged at both sides of the bottom sleeve mouth. The limiting groove is provided with a protruding limiting block (901) which is arranged at the step end of the outer diameter of the bottle mouth below the outer thread of the bottle body (9). When the outer thread of the bottle mouth of the bottle body is connected with the inner thread of the large circle, the limiting groove of the large circle is buckled and locked in the limiting block of the bottle body.

7. The squeeze bottle of a cosmetic container bidirectional valve head according to claim 5, characterized in that The inner cover (3) is provided in the outer cover (1), the nozzle hole (301) is provided in the center of the inner cover, when the bottom cover opening of the outer cover is buckled with the outer diameter of the large circle (8) or the bottle body (9), the nozzle (4) of the top of the large circle penetrates the nozzle hole of the inner cover, the nozzle hole of the top of the nozzle is sealed with the gasket (2) of the top of the outer cover, and the gasket is arranged in the gasket groove (101) of the top of the outer cover.

8. The squeeze bottle of a cosmetic container bidirectional valve head according to claim 7, characterized in that The large circle (8) and the nozzle (4) are integrated and are conical concave curved surface projections, the conical concave curved surface and the nozzle hole (301) of the inner cover (3) are provided with anti-side-bending gaps, meanwhile, the anti-side-bending gaps between the nozzle hole of the inner cover and the nozzle and the large circle are respectively provided with two anti-side-bending ring ribs (3011), and the anti-side-bending ring ribs are respectively in abutment with the outer diameters of the nozzle and the large circle.

9. The squeeze bottle of a cosmetic container bidirectional valve head according to claim 7, characterized in that The reinforcing ribs (302) which are connected with each other and are integrally formed are arranged in the cavity between the inner wall of the inner cover (3) and the nozzle hole (301).

10. The squeeze bottle of a cosmetic container bidirectional valve head according to claim 7, characterized in that The bottom cover opening outer diameter limiting block (901) of the inner cover (3) is buckled and limited by the limiting rib (102) of the inner wall of the outer cover (1).

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