A pump inversion device

Abstract

This utility model discloses a pump inversion device, including a housing and an inverted suction tube. The housing includes a first interface, a second interface, and a third interface. The second interface and the third interface are connected to the first interface. The first interface is connected to the upright suction tube, the second interface is connected to the pump core, and the third interface is connected to the inverted suction tube. The pump core is installed at the bottle mouth. The inverted suction tube extends towards the bottle mouth. A first steel ball is installed in the third interface and can slide within the third interface. When the housing is upright, the first steel ball blocks the connection between the third interface and the first interface. This utility model, by installing an inverted suction tube at the inverted suction port of the inversion device, makes the suction port closer to the bottle mouth, enabling the suction of small amounts of liquid.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging technology, and more specifically, to a pump inversion device. Background Technology

[0002] In the prior art, utility model patent application number 201921409549.0 discloses an inverting device for a spray pump, which can still dispense liquid by pressing the pump core when the bottle is inverted. However, it has the disadvantage that the inverted suction port is too high when inverted. When the liquid level in the bottle is lower than the inverted suction port, the inverting device cannot draw liquid. In addition, the positive suction tube is in a connected state when inverted, which will result in poor sealing effect when the device draws liquid in reverse, and the liquid dispensing is intermittent. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art, extend the inverted suction port to make it closer to the bottle mouth, and provide a pump inversion device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a pump inversion device, including a housing and an inverted suction tube. The housing includes a first interface, a second interface, and a third interface. The second interface and the third interface are connected to the first interface. The first interface is connected to the upright suction tube, the second interface is connected to the pump core, and the third interface is connected to the inverted suction tube. The pump core is installed at the mouth of a bottle. The inverted suction tube extends toward the mouth of the bottle. A first steel ball is installed in the third interface. The first steel ball can slide within the third interface. When the housing is upright, the first steel ball blocks the connection between the third interface and the first interface.

[0006] Furthermore, the second interface and the third interface face the same direction, while the first interface and the second interface face opposite directions.

[0007] Furthermore, the third interface includes a first part and a second part. The first part is connected to the first interface, a portion of the inverted straw is inserted into the second part, the first steel ball is located in the first part, the inner wall of the first part facing the first interface is conical, and the inner wall of the inverted straw facing the first part is conical.

[0008] Furthermore, the inner wall of the first part is provided with a plurality of limiting blocks, which are arranged in a ring. Each limiting block includes a limiting surface, and the plurality of limiting surfaces form a limiting channel, allowing the first steel ball to slide along the limiting channel.

[0009] Furthermore, it includes a connector installed on the first interface. The connector includes a connecting channel, a portion of the positive suction tube is inserted into the connecting channel, the connecting channel connects the first interface and the positive suction tube, the connecting channel includes a limiting space, a second steel ball is installed in the limiting space, the second steel ball can slide within the limiting space, and when the housing is inverted, the second steel ball blocks the connecting channel and the first interface.

[0010] Furthermore, the inner wall of the connector is provided with a plurality of limiting strips, which are arranged in a ring shape and form the limiting space between the plurality of limiting strips. Each limiting strip includes a protruding end, which is located at the end of the limiting strip away from the housing and extends toward the center of the connector. The thickness of the protruding end gradually decreases toward the center of the connector.

[0011] Furthermore, the connector is partially inserted into the first interface, and the end of the connector facing the housing is tapered with a gradually decreasing diameter. The inner wall of the connection channel near the first interface is provided with a tapered surface.

[0012] The beneficial effects of this utility model are:

[0013] This invention installs an inverted straw at the inverted suction port of the inverted device, making the suction port closer to the bottle opening, allowing for the suction of small amounts of liquid. At the same time, a second steel ball is installed in the connector so that the normal suction tube can be sealed when the bottle is inverted, ensuring that the liquid is drawn out and sprayed out continuously without interruption. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment.

[0015] Figure 2 This is a cross-sectional view of this embodiment.

[0016] Figure 3 This is a schematic diagram of the inverted use in this embodiment.

[0017] Figure 4 This is a schematic diagram of the housing in this embodiment.

[0018] Figure 5 This is a cross-sectional view of the connector in this embodiment.

[0019] Reference numerals: 1. Shell; 11. First interface; 12. Second interface; 13. Third interface; 131. First part; 1311. Limiting block; 1312. Limiting surface; 132. Second part; 2. Inverted straw; 3. Connector; 31. Connecting channel; 311. Limiting space; 312. Limiting strip; 3121. Protruding end; 41. First steel ball; 42. Second steel ball; 101. Bottle body; 1011. Bottle mouth; 102. Pump core; 103. Positive suction straw. Detailed Implementation

[0020] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figures 1-5 As shown, this embodiment discloses a pump inversion device. The pump here is a press pump used in the cosmetics field. It includes a housing 1, an inverted straw 2, and a connector 3. The housing 1 is made of plastic and includes a first interface 11, a second interface 12, and a third interface 13. The second interface 12 and the third interface 13 are both connected to the first interface 11. The second interface 12 and the third interface 13 face the same direction, while the first interface 11 and the second interface 12 face opposite directions. When the housing 1 is located inside the bottle 101, the first interface 11 faces the bottom of the bottle, and the second interface 12 and the third interface 13 face the bottle opening 1011.

[0022] The first interface 11 connects to the positive suction tube 103. A connector 3, made of plastic, is installed on the first interface 11. The connector 3 includes a connecting channel 31, into which a portion of the positive suction tube 103 is inserted. The connecting channel 31 connects the first interface 11 and the positive suction tube 103. The connecting channel 31 includes a limiting space 311, within which a second steel ball 42 is installed. The second steel ball 42 can slide within the limiting space 311. A portion of the connector 3 is inserted into the first interface 11. The end of the connector 3 facing the housing 1 is tapered with a gradually decreasing diameter. The inner wall of the connecting channel 31 near the first interface 11 is provided with a tapered surface. When the bottle 101 is used upside down, the housing 1 is upside down, and the second steel ball 42 falls down and abuts against the tapered surface of the connecting channel 31, thereby blocking the connecting channel 31 and the first interface 11. This can block the positive suction tube 103 when the bottle 101 is used upside down, and can provide a better seal when suctioning upside down, making the liquid discharge more continuous and preventing intermittent discharge.

[0023] like Figure 5As shown, the inner wall of the connector 3 is provided with multiple limiting strips 312, which are arranged in a ring shape. The multiple limiting strips 312 form a limiting space 311. The limiting strips 312 abut against the second steel ball 42. When the bottle 101 is used upright, the second steel ball 42 can be discharged normally during positive suction because there is a gap between the support of the limiting strips 312 and the inner wall of the connecting channel 31. The limiting strips 312 include an extension end 3121, which is located at the end of the limiting strip 312 away from the shell 1. The extension end 3121 extends toward the center of the connector 3. The thickness of the extension end 3121 gradually decreases toward the center of the connector 3. The space enclosed by the multiple extension ends 3121 is smaller than the diameter of the second steel ball 42, but the extension end 3121 can be elastically deformed. The second steel ball 42 can be pressed into the limiting space 311. After being pressed in, it will be limited by the extension end 3121 and will not fall out of the limiting space 311.

[0024] The second interface 12 is connected to the pump core 102, and the third interface 13 is connected to the inverted straw 2. The pump core 102 is installed at the bottle mouth 1011 of the bottle body 101. The inverted straw 2 extends toward the bottle mouth 1011. The third interface 13 includes a first part 131 and a second part 132. The first part 131 is connected to the first interface 11. Part of the inverted straw 2 is inserted into the second part 132. A first steel ball 41 is installed in the third interface 13. The first steel ball 41 is located in the first part 131 and can slide in the first part 131. The inner wall of the first part 131 facing the first interface 11 is conical, and the inverted straw 2 is conical toward the inner wall of the first part 131. When the shell 1 is upright, the first steel ball 41 abuts against the conical surface of the first part 131, thereby blocking the third interface 13 and the first interface 11. This can block the inverted straw 2 when the bottle body 101 is upright, preventing the liquid from being drawn out intermittently.

[0025] like Figure 4 As shown, the inner wall of the first part 131 is provided with multiple limiting blocks 1311, which are arranged in a ring. The upper end surface of the limiting block 1311 can abut against the inverted straw 2 to limit the installation depth of the inverted straw 2. The limiting block 1311 includes a limiting surface 1312, and multiple limiting surfaces 1312 form a limiting channel. The first steel ball 41 can slide along the limiting channel. There are four limiting blocks 1311, and the limiting channel is a rectangular channel. When the bottle 101 is used upside down, the support of the limiting block 1311 creates a gap between the first steel ball 41 and the inner wall of the third interface 13, allowing liquid to pass through the third interface 13 when it is upside down.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pump inversion device, characterized by, The device includes a housing (1) and an inverted straw (2). The housing (1) includes a first interface (11), a second interface (12), and a third interface (13). The second interface (12) and the third interface (13) are connected to the first interface (11). The first interface (11) is connected to the upright straw (103). The second interface (12) is connected to the pump core (102). The third interface (13) is connected to the inverted straw (2). The pump core (102) is installed at the bottle mouth (1011) of the bottle body (101). The inverted straw (2) extends toward the bottle mouth (1011). A first steel ball (41) is installed in the third interface (13). The first steel ball (41) can slide in the third interface (13). When the housing (1) is upright, the first steel ball (41) blocks the third interface (13) and the first interface (11).

2. The pump inversion device according to claim 1, characterized in that, The second interface (12) and the third interface (13) face the same direction, while the first interface (11) and the second interface (12) face opposite directions.

3. The pump inversion device of claim 1, wherein, The third interface (13) includes a first part (131) and a second part (132). The first part (131) is connected to the first interface (11). A portion of the inverted straw (2) is inserted into the second part (132). The first steel ball (41) is located in the first part (131). The inner wall of the first part (131) facing the first interface (11) is conical. The inner wall of the inverted straw (2) facing the first part (131) is conical.

4. The pump inversion device of claim 3, wherein, The inner wall of the first part (131) is provided with a plurality of limiting blocks (1311), which are arranged in a ring. Each limiting block (1311) includes a limiting surface (1312), and the plurality of limiting surfaces (1312) form a limiting channel. The first steel ball (41) can slide along the limiting channel.

5. The pump inversion device of claim 1, wherein, The device includes a connector (3) installed on the first interface (11). The connector (3) includes a connecting channel (31), a portion of the positive suction tube (103) is inserted into the connecting channel (31), the connecting channel (31) connects the first interface (11) and the positive suction tube (103), the connecting channel (31) includes a limiting space (311), a second steel ball (42) is installed in the limiting space (311), the second steel ball (42) can slide in the limiting space (311), and when the housing (1) is inverted, the second steel ball (42) blocks the connecting channel (31) and the first interface (11).

6. The pump inversion device of claim 5, wherein, The inner wall of the connector (3) is provided with a plurality of limiting strips (312), which are arranged in a ring shape and form a limiting space (311) between the plurality of limiting strips (312). Each limiting strip (312) includes an extension end (3121), which is located at the end of the limiting strip (312) away from the housing (1). The extension end (3121) extends toward the center of the connector (3), and the thickness of the extension end (3121) gradually decreases toward the center of the connector (3).

7. The pump inversion device of claim 5, wherein, The connector (3) is partially inserted into the first interface (11). The end of the connector (3) facing the housing (1) is tapered with a gradually decreasing diameter. The inner wall of the connection channel (31) near the first interface (11) has a tapered surface.

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