Nested connection assembly and visible double spray bottle

Abstract

The invention relates to a nested connection assembly and a visible double-spray bottle. The nested connection assembly comprises a cover body and a connector arranged in the cover body, the cover body is provided with a pressing pump, the pressing pump is connected with the connector, the cover body is connected with a protective shell, the connector is connected with a container used for containing liquid, and the container is sleeved with the protective shell. Due to the fact that the container containing liquid is located in the protective shell, the container is not prone to being damaged, the liquid in the container is not prone to being influenced by the external temperature, the container is only used for containing the liquid, the pressing pump is arranged on the cover body, the idea that the container can be replaced is given to a user in the using process, and after the liquid in the container is used up, the user can replace the container. The container can be replaced, the protective shell and the cover body can be continuously used, waste is reduced, and the container can be made of a single material, so that recycling is facilitated; in the using process, the hand and the container are isolated through the protective shell, and under the condition that the external temperature is low, heat of the hand is not prone to being absorbed by liquid in the container, and the hand is not too cold.

Description

Technical Field

[0001] The present application relates to the technical field of spray bottles, and in particular to a nested connection assembly and a visible double spray bottle. Background Art

[0002] Spray bottles are mainly used to convert the liquid inside the bottle into water mist after spraying it out. They are commonly used in the medical, chemical, and beauty industries.

[0003] A spray bottle usually includes a bottle with an open end and a push pump installed at the opening of the bottle. An atomizer head is installed on the push pump. When the push pump is pressed, the liquid inside the bottle is drawn out through the push pump and transported to the inside of the push pump. With continued pressing, the liquid is transported to the atomizer head and sprayed out after being atomized by the atomizer head.

[0004] When the entire bottle of liquid is used up, the user usually discards the bottle directly because it is not designed for multiple uses. Since a press pump is provided on the bottle body and metal parts are contained in the press pump, it is inconvenient to recycle the bottle body, which is not conducive to environmental protection.

[0005] At the same time, since the bottle containing liquid is directly exposed to the outside world, it is easy to be damaged by external factors. At the same time, the outside temperature can easily affect the temperature of the liquid in the bottle, increasing the difficulty of preserving the liquid in the bottle. When in use, the hand directly holds the bottle, and the heat of the hand will be absorbed by the bottle, which is not conducive to long-term holding and use when the outside temperature is low. Summary of the invention

[0006] In order to solve the problem that traditional single-layer spray bottles are difficult to recycle, the present application provides a nested connection assembly and a visible double spray bottle.

[0007] In the first aspect, the present application provides a nested connection assembly adopting the following technical solution: A nested connection assembly comprises a cover body and a connecting head arranged in the cover body, the cover body is provided with a pressing pump, the pressing pump is connected to the connecting head, the cover body is connected to a protective shell, the connecting head is connected to a container for containing liquid, and the protective shell is sleeved on the container.

[0008] Through the above technical solution, since the container for holding liquid is located in the protective shell, the container is not easily damaged by external influences, and the external temperature is not easy to affect the liquid in the container in the protective shell. At the same time, through the above design, the container is only used to hold liquid, and the pressing pump for discharging liquid is arranged on the cover body, which gives the user the idea that the container is replaceable when in use, so that after the user uses up the liquid in the container, he will continue to use the protective shell and the cover body by replacing the container, thereby reducing the generation of waste items. At the same time, the container can be made of a single type of material, which is conducive to recycling and reuse. When in use, the human hand and the container are isolated by the protective shell. When the outside temperature is low, the heat of the human hand is not easily absorbed by the liquid in the container, causing the human hand to be overcooled, and the human hand can be held and used for a long time.

[0009] Optionally, the cover body is provided with a cover body thread, and the cover body is connected to the protective shell through the cover body thread, the entry end of the cover body thread is planar, and the cover body at the entry end of the cover body thread is provided with an arc-shaped protrusion, and the arc-shaped protrusion is elastic, and the end end of the thread on the protective shell that matches the cover body thread is provided with a first clamping block, when the protective shell is threadedly connected to the cover body, the first clamping block is located between the starting end of the cover body thread and the protrusion, the protrusion is pressed against the first clamping block, and the starting end of the cover body thread is pressed against the first clamping block.

[0010] Optionally, the connecting head is provided with a connecting thread, and the connecting head is connected to the container through the connecting thread, the entry end of the connecting thread is planar, and the ending end of the thread of the container cooperating with the connecting thread is provided with a second clamping block, and the side wall of the connecting head at the entry end of the connecting thread is provided with a positioning groove, and a mounting block is provided in the positioning groove, and the mounting block is provided with an arc-shaped first baffle, and the first baffle is made of elastic material, and the end surface where the connecting head is connected to the container is provided with a clamping block, the entry end of the connecting thread is located between the first baffle and the clamping block, and an end surface where the container is connected to the connecting head is provided with a block, and when the container is threadedly connected to the connecting head, the end surface of the entry end of the connecting thread is clamped against the second clamping block, and the block is located between the first baffle and the clamping block, and the clamping block and the first baffle respectively clamp against the two ends of the block.

[0011] Optionally, the side wall of the connector is integrally provided with a second arc-shaped baffle, and the end face of the connector at the second baffle is also provided with a clamping block. A second baffle is provided on the side where the container is connected to the connector. When the container is threadedly connected to the connector, the second baffle is located between the second baffle and the clamping block, and the second baffle and the clamping block respectively clamp the two ends of the baffle.

[0012] Optionally, the cover body is elliptical, a first marking groove is provided on a side wall of the cover body, and a second marking groove is provided on a side wall of the container. When the container is connected to the connecting head, the first marking groove and the second marking groove are aligned with each other.

[0013] In a second aspect, the present application provides a visible double spray bottle, comprising: An outer bottle, threadedly connected to the cover body; An inner bottle, located inside the outer bottle and threadedly connected to the connector; The first clamping block is arranged at the end of the thread at the mouth of the outer bottle, the second clamping block is arranged at the end of the thread at the mouth of the inner bottle, the two blocks are arranged on a side where the inner bottle is connected to the connector, and the second marking groove is arranged on the side wall of the inner bottle.

[0014] Optionally, the outer bottle is in an elliptical shape that matches the cover body, and when the cover body is tightened, the cover body and the outer bottle are aligned with each other, and the outer bottle is transparent.

[0015] Optionally, a connecting tube is provided on the bottom wall of the inner bottle, and the connecting tube is connected to the inner cavity of the inner bottle. A sealing cap is hot-pressed on the end of the connecting tube connected to the inner cavity of the inner bottle. A pressure supply tube is provided on the bottom wall of the outer bottle. A one-way conduction mechanism is provided in the pressure supply tube. When the cover body is threadedly installed on the outer bottle, the pressure supply tube is threadedly connected to the connecting tube. An air supply mechanism is provided at the bottom of the outer bottle, and the air supply mechanism pressurizes the interior of the inner bottle through the pressure supply tube and the connecting tube.

[0016] Optionally, the one-way conduction mechanism includes a sealing tube slidably installed in the pressure supply pipe, a sealing cover is provided at one end of the sealing tube, the sealing cover fits tightly against one end of the pressure supply pipe located in the connecting pipe, a plurality of air outlets are provided on the side wall of the sealing tube, a tension spring is fixedly installed on the end of the sealing tube away from the sealing cover, a mounting ring is provided in the pressure supply pipe, the other end of the tension spring is fixedly connected to the mounting ring, under normal conditions, the tension spring pulls the sealing cover to fit tightly against the end face of the pressure supply pipe, a sealing ring is provided on the sealing cover, and the sealing ring fits tightly against the end face of the pressure supply pipe.

[0017] Optionally, a mounting groove is provided on the bottom wall of the outer bottle, and the air supply mechanism includes an air inlet pipe arranged in the mounting groove and a pressure ring slidably installed on the air inlet pipe, the air inlet pipe is connected and communicated with the pressure supply pipe, the outer wall of the pressure ring fits tightly against the side wall of the mounting groove, a spring is provided between the pressure ring and the bottom of the mounting groove, two ends of the spring are respectively connected to the pressure ring and the bottom of the mounting groove, and under normal conditions, the spring pushes the pressure ring to be flush with the bottom wall of the outer bottle; an annular groove is provided on the bottom wall of the pressure ring, and the annular groove is used to seal with the cover of the pressing pump, the bottom wall of the bottle body is provided with an air guide hole, which is communicated with the mounting groove, the side wall of the pressure ring is provided with an air vent, which is communicated with the annular groove, and when the pressure ring is pressed to the bottom of the mounting groove, the air vent is docked with the air guide hole.

[0018] In summary, the present application arranges the outer bottle sleeve on the inner bottle, so that the inner bottle is not easily damaged by external influences, and the external temperature is not easy to affect the liquid in the inner bottle in the outer bottle. At the same time, because the inner bottle is only used to contain liquid, the pressing pump for discharging liquid is arranged on the cover body, which gives the user the idea that the inner bottle is replaceable when in use, so that after the user uses up the liquid in the inner bottle, he can continue to use the outer bottle and the cover body by replacing the inner bottle, thereby reducing the generation of waste items. At the same time, the inner bottle can be made of a single type of material, which is advantageous The invention is suitable for recycling and reuse, and when in use, human hands and the inner bottle are isolated by the outer bottle. When the outside temperature is low, the heat of human hands is not easily absorbed by the liquid in the inner bottle, causing the human hands to be overcooled, and the human hands can hold and use it for a long time; and when the inner bottle is under negative pressure, the cover of the pressing pump is removed and embedded in the annular groove, and then the cover is pressed down, and the air in the cover of the pressing pump will enter the inner bottle along the air inlet pipe, the pressure supply pipe and the connecting pipe, so that the air pressure in the inner bottle returns to normal, so that the pressing pump can continue to press the liquid out of the inner bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of this application.

[0020] Figure 2 It is an exploded schematic diagram of the present application, in which the outer bottle portion is removed.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the cover body of the present application, in which part of the cover body is cut away.

[0022] Figure 4 yes Figure 3 Schematic diagram of the explosion.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the cover body of the present application.

[0024] Figure 6It is a three-dimensional structural schematic diagram of the outer bottle and the inner bottle of the present application.

[0025] Figure 7 It is a cross-sectional view of the present application.

[0026] Figure 8 yes Figure 7 Enlarged schematic diagram of part A in the middle.

[0027] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention.

[0028] 1. The cover body is provided with a plurality of sealing members, each of which is provided with a plurality of sealing members, and each of which is provided with a plurality of sealing members. The plurality of sealing members are provided with a plurality of sealing members, each of which is provided with a plurality of sealing members. The plurality of sealing members are provided with a plurality of sealing members, each of which is provided with a plurality of sealing members. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 —8 further describes this application in detail.

[0030] In a first aspect, the present application embodiment discloses a nested connection assembly, referring to Figure 1 and Figure 2 , including a cover body 1 made of plastic and a connector 2 coaxially and integrally arranged on the inner wall of the cover body 1, the cover body 1 is elliptical and the connector 2 is tubular.

[0031] Reference Figure 2 , Figure 3 and Figure 4 The inner wall of the cover body 1 is integrally provided with a cover body thread 11, and the inner wall of the connector 2 is integrally provided with a connecting thread 22. A pressing pump 3 is also fixedly mounted on the top wall of the cover body 1, and the liquid inlet end of the pressing pump 3 passes through the connector 2 coaxially.

[0032] The cover body 1 is installed with a protective shell through a threaded connection, and the connector 2 is installed with a container for containing liquid through a threaded connection. The container is located in the protective shell, and the protective shell protects the container, making the container less susceptible to external damage.

[0033] Reference Figure 3 , Figure 4 and Figure 5 The entry end of the cover body thread 11 is planar, and an arc-shaped protrusion 12 is integrally provided on the inner wall of the cover body 1 at the entry end of the cover body thread 11. The end end of the thread on the protective shell that matches the cover body thread 11 is integrally provided with a first clamping block 41. When the protective shell is threadedly connected to the cover body 1, the first clamping block 41 is located between the starting end of the cover body thread 11 and the protrusion 12, the protrusion 12 is pressed against the first clamping block 41, and the starting end face of the cover body thread 11 is pressed against the first clamping block 41.

[0034] Reference Figure 3 , Figure 4 and Figure 5 When the user is tightening the cover 1, when the cover 1 is rotated until the protrusion 12 first hits the first clamping block 41, the user will feel damping. If the cover 1 is continued to be twisted, the cover 1 will be deformed. After the protrusion 12 slides over the first clamping block 41, the first clamping block 41 is clamped between the protrusion 12 and the end face of the entry end of the cover thread 11, and the tightening of the cover 1 is completed. Through the cooperation between the protrusion 12 and the first clamping block 41, the user is provided with information about the tightening of the cover 1, which prevents the user from over-tightening the cover 1 and causing damage to the cover thread 11, effectively extending the service life of the cover 1 and reducing the generation of waste.

[0035] Reference Figure 3 , Figure 4 and Figure 5 And because the cover body 1 is elliptical, it is convenient to twist, but the starting end of the thread is not easy to determine during production. At the same time, through the positioning of the protrusion 12, the starting end of the cover body thread 11 can be determined by the protrusion 12 during the production of the cover body 1, which makes production more convenient.

[0036] Reference Figure 3 , Figure 4 and Figure 5 The entry end of the connecting thread 22 is also planar, and a second clamping block 52 is integrally provided at the end of the thread that matches the container and the connecting thread 22.

[0037] Reference Figure 3 , Figure 4 and Figure 5 A positioning groove 21 is provided on the outer wall of the connector 2 where the connecting thread 22 enters, and a mounting block 23 is integrally provided in the positioning groove 21. An arc-shaped first baffle 24 is integrally provided on one end surface of the mounting block 23 facing the end surface of the connector 2, and a tightening block 26 is integrally provided on the end surface of the connector 2.

[0038] Reference Figure 3 , Figure 4 and Figure 5The entry end of the connecting thread 22 is located between the first baffle 24 and the abutting block 26. A trapezoidal block 53 is integrally provided on one end face of the container connected to the connector 2. One side of the block 53 has a larger bevel angle and the other side has a smaller bevel angle. When the container is threadedly connected to the connector 2, the end face of the entry end of the connecting thread 22 abuts against the second block 52. The block 53 is located between the first baffle 24 and the abutting block 26. The abutting block 26 abuts against the larger bevel angle of the block 53, and the first baffle 24 abuts against the smaller bevel angle of the block 53.

[0039] Reference Figure 3 , Figure 4 and Figure 5 The first baffle 24 and the stopper 53 have the same function. Since the inner diameter of the connector 2 is small, the first baffle 24 for positioning and providing positioning information is set on the outer wall of the connector 2. At the same time, an arc-shaped second baffle 25 is integrally arranged on the side wall of the connector 2 opposite to the first baffle 24. The end surface of the connector 2 at the second baffle 25 is integrally provided with a second abutting block 26. The connecting surface of the container and the connector 2 is integrally provided with a second stopper 53. When the container is threadedly connected to the connector 2, the abutting block 26 abuts against the bevel with a larger angle of the stopper 53, and the second baffle 25 abuts against the bevel with a smaller angle of the stopper 53.

[0040] Reference Figure 3 , Figure 4 and Figure 5 Since the second baffle 25 is integrally connected to the side wall of the connector 2, the force required for the deformation of the second baffle 25 is greater than that of the first baffle 24. The connection between the container and the connector 2 is reinforced by the second baffle 25. Since the force required for the deformation of the first baffle 24 is smaller, it is easy to unscrew the container from the connector 2.

[0041] In the second aspect, the present application embodiment discloses a visual double spray bottle, referring to Figure 2 and Figure 6 , including an outer bottle 4 connected to the cover body thread 11 and an inner bottle 5 threadedly connected to the connector 2.

[0042] The outer bottle 4 is made of glass, and the bottom of the outer bottle 4 is closed by a base 6 made of plastic. The inner bottle 5 is made of plastic, and the information on the inner bottle 5 and the state of the inner bottle 5 can be observed through the outer bottle 4.

[0043] Reference Figure 1 and Figure 6 The outer bottle 4 is in an elliptical shape that matches the cover body 1. When the cover body 1 is tightened, the outer bottle 4 and the cover body 1 are aligned with each other. The inner bottle 5 is in a cylindrical shape, and the bottom wall of the inner bottle 5 is a semicircular protrusion.

[0044] Reference Figure 6The first clamping block 41 is integrally arranged at the end of the thread at the bottle mouth of the outer bottle 4, the second clamping block 52 is integrally arranged at the end of the thread at the bottle mouth of the inner bottle 5, and the two blocks 53 are both arranged on one side of the inner bottle 5 connected to the connector 2.

[0045] Reference Figure 1 , Figure 2 and Figure 6 A first marking groove 13 is opened on the side wall of the cover body 1, and a second marking groove 51 is opened on the side wall of the inner bottle 5. When Ning Ping is tightened on the connector 2, the first marking groove 13 and the second marking groove 51 are aligned with each other.

[0046] Reference Figure 7 and Figure 8 A connecting tube 63 is coaxially and integrally provided on the inner wall of the bottom wall of the inner bottle 5 , and the connecting end of the connecting tube 63 and the inner bottle 5 is connected to the outside world. A plastic sealing cap 64 is hot-pressed on the other end of the connecting tube 63 , and the sealing cap 64 seals the end of the connecting tube 63 .

[0047] Reference Figure 7 and Figure 8 A circular mounting groove 61 is coaxially formed at the bottom of the base 6 , a pressure supply pipe 65 and an air supply mechanism 8 are disposed in the mounting groove 61 , and a unidirectional conduction mechanism is disposed in the pressure supply pipe 65 .

[0048] Reference Figure 7 and Figure 8 The pressure supply pipe 65 is coaxially and integrally arranged on the top wall of the base 6 . When the cover body 1 is tightened, the pressure supply pipe 65 is threadedly connected to the connecting pipe 63 , and there is a gap between the pressure supply pipe 65 and the sealing cover 64 .

[0049] Reference Figure 7 and Figure 8 The one-way conduction mechanism 7 includes a sealing tube 71 slidably installed in the pressure supply tube 65 and a sealing cover 72 integrally provided at one end of the sealing tube 71 , and the sealing plate is separated from the inner wall of the pressure supply tube 65 .

[0050] Reference Figure 7 and Figure 8 A plurality of air outlets 711 are provided on the side wall of the sealing tube 71 . A tension spring 73 is fixedly installed on one end of the sealing tube 71 away from the sealing cover 72 . A mounting ring 74 is coaxially integrated in the pressure supply tube, and the other end of the tension spring 73 is fixedly connected to the mounting ring 74 .

[0051] Reference Figure 7 and Figure 8 In normal state, the tension spring 73 pulls the sealing cover 72 to fit tightly against the end surface of the pressure supply pipe 65 . A sealing ring 75 is embedded in the sealing cover 72 , and the sealing ring 75 fits tightly against the end surface of the pressure supply pipe 65 .

[0052] Reference Figure 7 and Figure 8The air supply mechanism 8 includes an air inlet pipe 81 coaxially and integrally arranged on the bottom wall of the mounting groove 61 and a pressure ring 82 slidably mounted on the air inlet pipe 81 .

[0053] Reference Figure 7 and Figure 8 The air inlet pipe 81 is coaxially connected to the pressure supply pipe 65, the outer wall of the pressure ring 82 is tightly pressed against the side wall of the mounting groove 61, and a spring 83 is provided between the pressure ring 82 and the bottom of the mounting groove 61. The two ends of the spring 83 are respectively connected to the pressure ring 82 and the bottom of the mounting groove 61. Under normal circumstances, the spring 83 pushes the pressure ring 82 to be flush with the bottom wall of the outer bottle 4.

[0054] As the liquid in the inner bottle 5 is continuously used, negative pressure will be formed inside the inner bottle 5 , causing the pressing pump 3 to be unable to pump out the liquid in the inner bottle 5 , so it is necessary to supplement the pressure in the inner bottle 5 .

[0055] Reference Figure 7 and Figure 8 A circular groove 822 is provided on the bottom wall of the pressure ring 82. When the inner bottle 5 needs to be supplemented with pressure, the cover 9 of the pressing pump 3 is removed, and then the open end of the cover 9 is embedded in the circular groove 822, and then the cover 9 is pressed down. Since the space inside the cover body 1 is reduced and the air pressure is increased, the air in the cover 9 will be pressed into the air inlet pipe 81, and then enter the pressure supply pipe 65 along the air inlet pipe 81, pushing the sealing tube 71 in the pressure supply pipe 65 to slide, and then spray out from the air outlet 711 of the sealing tube 71 into the connecting pipe 63, and then enter the inner bottle 5 after the sealing cover 64 of the connecting pipe 63 is opened to supplement the pressure of the inner bottle 5.

[0056] Reference Figure 7 and Figure 8 The annular groove 822 is sealed with the cover 9, the base 6 is provided with an air guide hole 62, the air guide hole 62 is connected with the mounting groove 61, the side wall of the pressing ring 82 is provided with an air vent 821, the air vent 821 is connected with the annular groove 822, when the pressing ring 82 is pressed to the bottom of the mounting groove 61, the air vent 821 is docked with the air guide hole 62.

[0057] Reference Figure 7 and Figure 8 When the pressure ring 82 moves toward the bottom of the mounting groove 61, the gas in the mounting groove 61 will be discharged along the air guide hole 62 to press the pressure ring 82 down. When the air vent 821 is docked with the air guide hole 62, the cover 9 is removed. After the pressure ring 82 is reset by the spring 83, the pressure inside the inner bottle 5 continues to be supplemented through the cover body 1 until the liquid in the inner bottle 5 can be pumped out normally by the pressing pump 3.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A nested connection assembly, characterized in that: A nested connection assembly comprises a cover body (1) and a connection head (2) arranged in the cover body (1), the cover body (1) being provided with a press pump (3), the press pump (3) being connected to the connection head (2), the cover body (1) being connected to a protective shell, the connection head (2) being connected to a container for containing liquid, and the protective shell being sleeved on the container.

2. A nested connection assembly according to claim 1, characterized in that: The cover body (1) is provided with a cover body thread (11), and the cover body (1) is connected to the protective shell via the cover body thread (11); the entry end of the cover body thread (11) is planar, and the cover body (1) at the entry end of the cover body thread (11) is provided with an arc-shaped protrusion (12), and the arc-shaped protrusion (12) is elastic; the end end of the thread on the protective shell that matches the cover body thread (11) is provided with a first clamping block (41); when the protective shell is threadedly connected to the cover body (1), the first clamping block (41) is located between the starting end of the cover body thread (11) and the protrusion (12), and the protrusion (12) is pressed against the first clamping block (41), and the starting end of the cover body thread (11) is pressed against the first clamping block (41).

3. A nested connection assembly according to claim 1, characterized in that: The connector (2) is provided with a connecting thread (22), and the connector (2) is connected to the container via the connecting thread (22); the entry end of the connecting thread (22) is planar, and the terminal end of the thread of the container that matches the connecting thread (22) is provided with a second clamping block (52); a positioning groove (21) is provided on the side wall of the connector (2) at the entry end of the connecting thread (22), and a mounting block (23) is provided in the positioning groove (21); the mounting block (23) is provided with an arc-shaped first baffle (24), and the first baffle (24) is made of elastic material. The end surface of the connector (2) connected to the container is provided with a clamping block (26); the entry end of the connecting thread (22) is located between the first baffle (24) and the clamping block (26); an end surface of the container connected to the connector (2) is provided with a block (53); when the container is threadedly connected to the connector (2), the end surface of the entry end of the connecting thread (22) is clamped against the second clamping block (52); the block (53) is located between the first baffle (24) and the clamping block (26); and the clamping block (26) and the first baffle (24) respectively clamp against two ends of the block (53).

4. A nested connection assembly according to claim 3, characterized in that: The side wall of the connector (2) is integrally provided with an arc-shaped second baffle (25); the end surface of the connector (2) at the second baffle (25) is also provided with a clamping block (26); a second baffle (53) is provided on a side of the container connected to the connector (2); when the container is threadedly connected to the connector (2), the second baffle (53) is located between the second baffle (25) and the clamping block (26); the second baffle (25) and the clamping block (26) respectively clamp against two ends of the baffle (53).

5. A nested connection assembly according to claim 2, characterized in that: The cover body (1) is elliptical, a first marking groove (13) is provided on a side wall of the cover body (1), and a second marking groove (51) is provided on a side wall of the container; when the container is connected to the connector (2), the first marking groove (13) and the second marking groove (51) are aligned with each other.

6. A visible double spray bottle, characterized in that: include: The outer bottle (4) is connected to the cover thread (11) of any one of claims 1 to 5 and is transparent; An inner bottle (5) is located inside the outer bottle (4) and is threadedly connected to any one of the connectors (2) in rights 1 to 5; The first clamping block (41) is arranged at the end of the thread at the mouth of the outer bottle (4), the second clamping block (52) is arranged at the end of the thread at the mouth of the inner bottle (5), the two stoppers (53) are arranged on a side of the inner bottle (5) connected to the connector (2), and the second marking groove (51) is arranged on the side wall of the inner bottle (5).

7. A visible double spray bottle according to claim 6, characterized in that: The outer bottle (4) is in an elliptical shape that matches the cover body (1); when the cover body (1) is tightened, the cover body (1) and the outer bottle (4) are aligned with each other.

8. The visible dual spray bottle according to claim 7, characterized in that: The bottom wall of the inner bottle (5) is provided with a connecting tube (63), the connecting tube (63) is connected to the inner cavity of the inner bottle (5), and a sealing cap (64) is hot-pressed on one end of the connecting tube (63) connected to the inner cavity of the inner bottle (5). The bottom wall of the outer bottle (4) is provided with a pressure supply tube (65), and a one-way conduction mechanism (7) is provided in the pressure supply tube (65). When the cover body thread (11) is installed on the outer bottle (4), the pressure supply tube (65) is threadedly connected to the connecting tube (63). The bottom of the outer bottle (4) is provided with an air supply mechanism (8), and the air supply mechanism (8) pressurizes the interior of the inner bottle (5) through the pressure supply tube (65) and the connecting tube (63).

9. The visible dual spray bottle according to claim 8, characterized in that: The one-way conduction mechanism (7) comprises a sealing tube (71) slidably mounted in the pressure supply tube (65); a sealing cover (72) is provided at one end of the sealing tube (71); the sealing cover (72) fits tightly against one end of the pressure supply tube (65) located in the connecting tube (63); a plurality of air outlets (711) are provided on the side wall of the sealing tube (71); a tension spring (73) is fixedly mounted on one end of the sealing tube (71) away from the sealing cover (72); a mounting ring (74) is provided in the pressure supply hook; the other end of the tension spring (73) is fixedly connected to the mounting ring (74); under normal conditions, the tension spring (73) pulls the sealing cover (72) to fit tightly against the end face of the pressure supply tube (65); a sealing ring (75) is provided on the sealing cover (72); the sealing ring (75) fits tightly against the end face of the pressure supply tube (65).

10. The visible double spray bottle according to claim 9, characterized in that: The bottom wall of the outer bottle (4) is provided with a mounting groove (61), the air supply mechanism (8) comprises an air intake pipe (81) arranged in the mounting groove (61) and a pressure ring (82) slidably mounted on the air intake pipe (81), the air intake pipe (81) is connected and communicated with the pressure supply pipe (65), the outer wall of the pressure ring (82) is closely fitted against the side wall of the mounting groove (61), a spring (83) is provided between the pressure ring (82) and the bottom of the mounting groove (61), the two ends of the spring (83) are respectively connected to the pressure ring (82) and the bottom of the mounting groove (61), and under normal conditions, the spring (83) pushes The pressing ring (82) is flush with the bottom wall of the outer bottle (4); the bottom wall of the pressing ring (82) is provided with an annular groove (822), and the annular groove (822) is used to seal with the cover (9) of the pressing pump (3); the bottom wall of the bottle body is provided with an air guide hole (62), and the air guide hole (62) is connected to the mounting groove (61); the side wall of the pressing ring (82) is provided with an air vent (821), and the air vent (821) is connected to the annular groove (822); when the pressing ring (82) is pressed to the bottom of the mounting groove (61), the air vent (821) is butted against the air guide hole (62).

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