Inverted spraying pump with air supplementing hole

Abstract

The utility model relates to the field of packaging bottles, in particular to an inverted spraying pump with an air supplementing hole, which comprises a tooth cover, a pressing head, an upper body, a main column, a spring and a piston. The piston is installed at the lower end of the main column, the upper body is fixedly connected with the tooth cover, the piston is connected with the upper body in a sliding mode, and the piston can expose or cover the inner side of the air supplementing hole in the vertical sliding process; an elastic gasket is further included; the main column is connected with the tooth cover in an up-down sliding mode, the pressing head is fixed to the top of the main column, and an air inlet space is formed between the main column and the tooth cover. And the elastic gasket is coated on the upper body and covers the outer side of the air supplementing hole. And the effect that contents cannot overflow from the air supplementing holes during forward spraying and reverse spraying can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of packaging bottles, in particular to an inverted spray pump with an air compensation hole. Background Art

[0002] For a packaging bottle with a pressing pump, in order to balance the air pressure inside and outside the bottle, an air compensation hole is provided on the pump. For a pressing pump used in the normal direction, if it has an air compensation hole, generally, the content will not leak from the air compensation hole into the pump. However, for an inverted pump with an air compensation hole on the pump, the content is likely to enter the pump from the air compensation hole and then leak from the pump body to the bottle mouth, making the packaging bottle not easy to clean. Content of the Utility Model

[0003] To solve the above technical problems, the purpose of the utility model is to provide an inverted spray pump with an air compensation hole, which is not easy to leak the content when used in an inverted spray manner.

[0004] The technical solution adopted by the utility model to solve the problem is as follows:

[0005] An inverted spray pump with an air compensation hole includes a tooth cap, a pressing head, an upper body, a main column, a spring, and a piston. An air compensation hole is provided on the upper body; the piston is installed at the lower end of the main column, the upper body is fixedly connected to the tooth cap, the piston is slidably connected to the upper body, and the inner side of the air compensation hole can be exposed or covered during the up and down sliding of the piston; an elastic gasket is also included; the main column is slidably connected to the tooth cap up and down, the pressing head is fixed at the top of the main column, and an air intake space is formed between the main column and the tooth cap; the elastic gasket is wrapped on the upper body, and the elastic gasket covers the outer side of the air compensation hole.

[0006] As a further improvement of the above technical solution, a lower body is further included. The lower body is fixedly connected and communicated with the upper body. A straw is inserted into the lower body. Liquid inlet holes are provided on the upper and lower bodies. An elastic washer is installed on the lower body, and the elastic washer covers the liquid inlet hole.

[0007] As a further improvement of the above technical solution, a ball valve is provided in the lower body, and the ball valve is arranged at the top of the straw.

[0008] As a further improvement of the above technical solution, a limit ring part is provided at the bottom of the upper body. The limit ring part is arranged above the ball valve and is used to limit the upward movement stroke of the ball valve.

[0009] As a further improvement of the above technical solution, the elastic gasket includes an annular installation part and a cylindrical body part. The installation part is closely attached to the tooth cap, and the body part extends downward.

[0010] As a further improvement of the above technical solution, it further includes a lock cover. The lock cover is sleeved on the main column, the lock cover is relatively fixed to the tooth cover, a step is formed in the middle of the lock cover, the lower part of the spring is arranged in the lock cover, and a gap is provided between the lock cover and the main column.

[0011] The beneficial effect of the present utility model is that when the elastic gasket opens the air compensation hole, the negative pressure in the bottle body can ensure that the content does not flow upward to the upper body. When the elastic gasket covers the air compensation hole, the content cannot flow upward to the upper body either. Therefore, the effect that the content will not overflow from the air compensation hole during both positive spraying and inverted spraying can be achieved. Description of the Drawings

[0012] The following further explains and illustrates the present utility model in conjunction with the description of the drawings and the specific embodiments.

[0013] Figure 1 is a cross-sectional view of the present utility model;

[0014] Figure 2 is Figure 1 an enlarged view of part A of

[0015] Figure 3 is a cross-sectional view of the present utility model after the pressing head is pressed;

[0016] Figure 4 is Figure 3 an enlarged view of part B of

[0017] In the figure: 1 - tooth cover, 2 - pressing head, 3 - upper body, 31 - air compensation hole, 32 - limiting ring, 4 - main column, 5 - spring, 6 - piston, 7 - elastic gasket, 71 - installation part, 72 - body part, 8 - straw, 9 - elastic washer, 10 - lower body, 101 - liquid inlet hole, 11 - lock cover, 12 - ball valve. Specific Embodiments

[0018] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0020] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features. In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0021] Referring to Figures 1 to 4 , an inverted spray pump with an air compensation hole, comprising:

[0022] A tooth cover 1, a pressing head 2, an upper body 3, a main column 4, a spring 5, and a piston 6. An air compensation hole 31 is provided on the upper body 3; the piston 6 is installed at the lower end of the main column 4, the upper body 3 is fixedly connected to the tooth cover 1, the piston 6 is slidably connected to the upper body 3, and the inner side of the air compensation hole 31 can be exposed or covered during the up and down sliding of the piston 6; further comprising an elastic gasket 7; the main column 4 is slidably connected to the tooth cover 1 up and down, the pressing head 2 is fixed at the top of the main column 4, and an air intake space is formed between the main column 4 and the tooth cover 1; the elastic gasket 7 is wrapped on the upper body 3, and the elastic gasket 7 covers the outside of the air compensation hole 31.

[0023] Principle of use: Install the tooth cover 1 on the bottle mouth of an external bottle body, press the pressing head 2, the pressing head 2, the main column 4 and the piston 6 move downward, the inner side of the air compensation hole 31 is exposed outside the piston 6, and the spring 5 is compressed; release the pressing head 2, during the process of the spring 5 rebounding, the content is sucked into the upper body 3. At this time, a negative pressure is generated in the bottle body, the elastic gasket 7 is pulled towards the bottle body side, the outside of the air compensation hole 31 is opened, and air enters the bottle body from the upper body 3 to balance the air pressure in the bottle body. After the air pressure in the bottle body is equal to the atmospheric pressure, the elastic gasket 7 resets. Since when the elastic gasket 7 opens the air compensation hole 31, the negative pressure in the bottle body will ensure that the content does not flow into the upper body 3, and when the elastic gasket 7 covers the air compensation hole 31, the content cannot flow into the upper body 3 either. Therefore, the effect that the content will not overflow from the air compensation hole 31 during both positive spraying and inverted spraying can be achieved. The air intake space between the main column 4 and the tooth cover 1 is used to supplement air to the upper body 31.

[0024] In a preferred embodiment, it further includes a lower body 10, which is fixedly connected and communicated with the upper body 3. A straw 8 is inserted into the lower body 10. Liquid inlet holes 101 are provided on the upper and lower bodies 10. An elastic washer 9 is installed on the lower body 10, and the elastic washer 9 covers the liquid inlet holes 101. When used in an inverted state, during the process of the spring 5 resetting, negative pressure is generated below the piston 6 to pull and deform the elastic washer 9, so that the lower body 10 is communicated with the bottle body through the liquid inlet holes 101, and the content can enter the lower body from the liquid inlet holes 101 and then exit to the outside through the upper body 3, the main column 4 and the pressing head 2.

[0025] In a preferred embodiment, a ball valve 12 is provided in the lower body 10, and the ball valve 12 is arranged at the top of the straw 8. When used in a normal state, the content can be sucked into the lower body 10 from the bottom of the straw 8.

[0026] In a preferred embodiment, a limiting ring part 32 is provided at the bottom of the upper body 3. The limiting ring part 32 is arranged above the ball valve 12 and is used to limit the upward movement stroke of the ball valve 12.

[0027] In a preferred embodiment, the elastic gasket 7 includes an annular mounting part 71 and a cylindrical body part 72. The mounting part 71 is closely attached to the tooth cap 1, and the body part 72 extends downward. The annular mounting part 71 is pressed between the tooth cap and the bottle mouth, which can play a sealing role.

[0028] In a preferred embodiment, it further includes a lock cap 11. The lock cap 11 is sleeved on the main column 4. The lock cap 11 is relatively fixed to the tooth cap 1. A step is formed in the middle of the lock cap 11. The lower part of the spring 5 is arranged in the lock cap 11, and there is a gap between the lock cap 11 and the main column 4. Setting the lock cap 11 can facilitate the installation of the spring 5.

[0029] In some embodiments, a dust cap 13 is further sleeved outside the tooth cap 1.

[0030] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An inverted spray pump with an air compensation hole, comprising a tooth cover (1), a pressing head (2), an upper body (3), a main column (4), a spring (5), and a piston (6). The upper body (3) is provided with an air compensation hole (31); the piston (6) is installed at the lower end of the main column (4), the upper body (3) is fixedly connected to the tooth cover (1), the piston (6) is slidably connected to the upper body (3), and the inner side of the air compensation hole (31) can be exposed or covered during the up and down sliding of the piston (6); characterized in that: It further includes an elastic gasket (7); the main column (4) is slidably connected to the tooth cover (1) up and down, the pressing head (2) is fixed at the top of the main column (4), and an air intake space is formed between the main column (4) and the tooth cover (1); the elastic gasket (7) is wrapped around the upper body (3), and the elastic gasket (7) covers the outside of the air compensation hole (31).

2. The inverted spray pump with an air compensation hole according to claim 1, characterized in that: It further includes a lower body (10), the lower body (10) is fixedly connected and communicated with the upper body (3), a suction pipe (8) is inserted into the lower body (10), a liquid inlet hole (101) is provided on the upper and lower body (10), and an elastic washer (9) is installed on the lower body (10), and the elastic washer (9) covers the liquid inlet hole (101).

3. The inverted spray pump with an air compensation hole according to claim 2, characterized in that: A ball valve (12) is provided in the lower body (10), and the ball valve (12) is arranged at the top of the suction pipe (8).

4. The inverted spray pump with an air compensation hole according to claim 3, characterized in that: A limit ring portion (32) is provided at the bottom of the upper body (3), and the limit ring portion (32) is arranged above the ball valve (12) and is used to limit the upward movement stroke of the ball valve (12).

5. The inverted spray pump with an air compensation hole according to claim 1, characterized in that: The elastic gasket (7) includes an annular installation portion (71) and a cylindrical body portion (72), the installation portion (71) is closely attached to the tooth cover (1), and the body portion (72) extends downward.

6. The inverted spray pump with an air compensation hole according to claim 1, characterized in that: It further includes a lock cover (11), the lock cover (11) is sleeved on the main column (4), the lock cover (11) is relatively fixed to the tooth cover (1), a step is formed in the middle of the lock cover (11), the lower part of the spring (5) is arranged in the lock cover (11), and a gap is provided between the lock cover (11) and the main column (4).

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