Quantitative liquid outlet head structure

Abstract

The utility model relates to the field of liquid distribution devices, in particular to a quantitative liquid outlet head structure. According to the structure, liquid can be pressed out only when the guide rib is located over the first quantitative guide groove / the second quantitative guide groove, and liquid is prevented from being touched out by mistake; the two guide grooves with different depths are arranged, when a large amount of liquid needs to be sprayed out, the liquid is pressed to the bottom in the deep guide groove, quantitative spraying of the large amount of liquid can be achieved every time, when a small amount of liquid needs to be sprayed out, the liquid is pressed to the bottom in the shallow guide groove, and quantitative spraying of the small amount of liquid can be achieved every time. And the same liquid outlet head is suitable for different use scenes and different feed liquid dosage requirements.

Description

Technical Field

[0001] This utility model relates to the field of liquid distribution devices, and in particular to a quantitative liquid dispensing head structure. Background Technology

[0002] A push-button pump head is a common liquid dispensing device widely used in the packaging of cosmetics, detergents, pharmaceuticals, and other products. Its working principle involves pressing the pump head, using the pressure difference to draw liquid from the container and spray it out. Existing pump heads, when fully depressed after unlocking, dispense a fixed amount of liquid. However, if the dosage needs to be adjusted, especially with pump heads that have a relatively high output, and when less than the required amount is needed, the user can only control the dispensing volume by pressing deeper. This method is difficult to control, relying solely on manual feel to apply pressure, making it hard to achieve a precise dispenser. Furthermore, once unlocked, the pump head is in a press-and-dispense state, making accidental dispensing of solution easy. Utility Model Content

[0003] To overcome the above problems, this utility model provides a quantitative liquid dispensing head structure. The technical solution adopted by this utility model to solve its technical problems is as follows:

[0004] A quantitative dispensing head structure includes a pump suction assembly with a locking cover. A pressing head is rotatably mounted on the locking cover, and the inlet pipe of the pressing head is connected to the outlet pipe of the pump suction assembly. The locking cover has a first quantitative guide groove and a second quantitative guide groove of different depths. A guide rib is provided inside the pressing head. The pressing head rotates relative to the locking cover. Only when the guide rib is directly above the first / second quantitative guide groove can the pressing head press down on the pump suction assembly. At this time, the guide rib is aligned with the first / second quantitative guide groove and moves downward. The maximum stroke of the pressing head pressing the pump suction assembly is equal to the depth of the first / second quantitative guide groove, thus dispensing a quantitative amount of liquid. After the pressing is canceled, the pump suction assembly drives the pressing head back to directly above the first / second quantitative guide groove.

[0005] Furthermore, a vertical limiting ring cylinder is provided on the lock cover, and the first quantitative guide groove and the second quantitative guide groove are both vertically set on the limiting ring cylinder; when the pressing head rotates relative to the lock cover, before the guide rib rotates to directly above the first quantitative guide groove / second quantitative guide groove, the upper end face of the limiting ring cylinder always abuts against the guide rib to restrict the guide rib from moving downward.

[0006] Furthermore, the upper end face of the limiting ring cylinder is provided with two guide slopes. When the pressing head rotates relative to the locking cover, the minimum force required for the guide rib to cross the guide slope is greater than the minimum force required to rotate the pressing head.

[0007] Furthermore, the lock cover is provided with a first quantitative indicator mark and a second quantitative indicator mark, and the pressing head is provided with a pressing mark. When the pressing mark is aligned with the first quantitative indicator mark / second quantitative indicator mark, the guide rib is located directly above the first quantitative guide groove / second quantitative guide groove.

[0008] Furthermore, the limiting ring cylinder is provided with a first limiting wall and a second limiting wall. Both the first limiting wall and the second limiting wall are located on the path of the guide rib rotation. When the guide rib abuts against the first limiting wall / second limiting wall, the guide rib is located directly above the first quantitative guide groove / second quantitative guide groove.

[0009] Furthermore, one vertical groove edge of the first limiting wall and the first quantitative guide groove are located in the same vertical plane, and one vertical groove edge of the second limiting wall and the second quantitative guide groove are located in the same vertical plane.

[0010] Furthermore, it also includes a protective cover, which is detachably and fixedly connected to the lock cover to cover the pressing head.

[0011] Furthermore, the inner wall of the protective cover is provided with positioning blocks, and the lock cover is provided with positioning grooves; the positioning blocks can only be aligned into the positioning grooves when the guide ribs are located between the two guide slopes, so that the protective cover can cover the pressing head.

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

[0013] The liquid outlet structure includes a pump suction assembly with a locking cover. A pressing head is rotatably mounted on the locking cover, and the inlet pipe of the pressing head is connected to the outlet pipe of the pump suction assembly. The locking cover has a first and a second metering guide groove of different depths, and the pressing head contains guide ribs. The pressing head rotates relative to the locking cover. Only when the guide ribs are directly above the first / second metering guide grooves can the pressing head press down on the pump suction assembly. At this point, the guide ribs align with the first / second metering guide grooves and move downwards. The maximum stroke of the pressing head pressing on the pump suction assembly is equal to the depth of the first / second metering guide grooves. The system dispenses a fixed amount of liquid. After the pressing is canceled, the pump suction assembly drives the pressing head back to directly above the first / second metering guide groove. This structure allows liquid to be dispensed only when the guide rib is directly above the first / second metering guide groove to prevent accidental dispensing. Furthermore, it features two guide grooves of different depths. When a larger amount of liquid needs to be dispensed, pressing down in the deeper guide groove ensures a fixed amount of liquid is dispensed each time. Conversely, when a smaller amount of liquid needs to be dispensed, pressing down in the shallower guide groove ensures a fixed amount of liquid is dispensed each time. This allows the same dispensing head to be suitable for different application scenarios and different liquid volume requirements. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, wherein:

[0015] Figure 1 This is a three-dimensional view of the liquid outlet head structure;

[0016] Figure 2 This is an exploded view of the liquid outlet head structure;

[0017] Figure 3 This is a 3D view of the lock cover;

[0018] Figure 4 This is a 3D view of the protective shield;

[0019] Figure 5 This is a 3D view of the press head.

[0020] Figure number marking:

[0021] 100. Pump suction assembly; 101. Discharge pipe;

[0022] 200. Locking cap; 201. First quantitative guide groove; 202. Second quantitative guide groove; 203. Limiting ring cylinder; 204. Guide slope; 205. First limiting wall; 206. Second limiting wall; 207. Positioning groove;

[0023] 300. Press head; 301. Liquid inlet pipe; 302. Guide rib;

[0024] 400. Protective cover; 401. Positioning block. Detailed Implementation

[0025] To better understand the purpose, structure, and function of this utility model, the following detailed description of a specific embodiment of the "quantitative liquid dispensing head structure" of this utility model is provided in conjunction with the accompanying drawings.

[0026] See Figures 1-5In this embodiment, the quantitative dispensing head structure includes a pump suction assembly 100, a locking cover 200, and a rotatable pressing head 300 on the locking cover 200. The inlet pipe 301 of the pressing head 300 is connected to the outlet pipe 101 of the pump suction assembly 100. The locking cover 200 has a first quantitative guide groove 201 and a second quantitative guide groove 202 of different depths. The pressing head 300 has a guide rib 302 inside. The pressing head 300 rotates relative to the locking cover 200. When the guide rib 302 is directly above the first quantitative guide groove 201 / second quantitative guide groove 202, pressing the pressing head 300 will make the pressing head 300 rotate. The pump assembly 100 moves downward and presses the pump to dispense liquid. At this time, the guide rib 302 is positioned in the first quantitative guide groove 201 / second quantitative guide groove 202 and moves downward. The maximum stroke of the pressing head 300 pressing the pump assembly 100 is equal to the depth of the first quantitative guide groove 201 / second quantitative guide groove 202. The pressing head 300 presses down to the bottom of the first quantitative guide groove 201 / second quantitative guide groove 202 to dispense liquid in a quantitative manner. After the pressing is canceled, the pump assembly 100 drives the pressing head 300 to retract to directly above the first quantitative guide groove 201 / second quantitative guide groove 202, so that the pressing head 300 can be rotated to other positions. When not in use, rotating the pressing head 300 ensures that the guide rib 302 is not directly above the first and second metering guide grooves 201 and 202. This prevents accidental pressing of the pressing head 300 from dispensing liquid. When a large quantity of liquid needs to be dispensed, rotating the pressing head 300 positions the guide rib 302 directly above the deeper guide groove, and pressing the pressing head 300 to the bottom, achieves a large, metered dispensing. When a small quantity of liquid needs to be dispensed, rotating the pressing head 300 positions the guide rib 302 directly above the shallower guide groove, and pressing the pressing head 300 to the bottom, achieves a small, metered dispensing. This allows the same dispensing head to be suitable for different usage scenarios and different liquid dosage requirements. For example, the different metering requirements for hand washing and machine washing laundry detergent, or for small and large quantities of dishwashing liquid, can all be met by this dispensing head structure.

[0027] See further Figure 2 and Figure 3 In this embodiment, a vertical limiting ring cylinder 203 is provided on the lock cover 200, and the first quantitative guide groove 201 and the second quantitative guide groove 202 are both vertically provided on the limiting ring cylinder 203. When the pressing head 300 rotates relative to the lock cover 200, before the guide rib 302 rotates to directly above the first quantitative guide groove 201 / second quantitative guide groove 202, the upper end face of the limiting ring cylinder 203 always abuts against the guide rib 302 to restrict the guide rib 302 from moving downward, thereby realizing the function of preventing accidental liquid spraying.

[0028] More specifically, the upper end face of the limiting ring cylinder 203 is provided with two guide ramps 204. When the pressing head 300 rotates relative to the locking cap 200, the minimum force required for the guide rib 302 to cross the guide ramps 204 is greater than the minimum force required to rotate the pressing head 300. Thus, in the non-use state, rotating the pressing head 300 positions the guide rib 302 between the two guide ramps 204. This prevents the pressing head 300 from easily deflecting even during transportation due to vibration, thus preventing the guide rib 302 from rotating directly above the first / second metering guide groove 201 / 202 and causing accidental spraying. Simultaneously, the guide ramps 204 provide a tactile feedback when the user rotates the pressing head 300, allowing the user to perceive whether the pressing head 300 has been rotated to the correct position to prevent accidental spraying.

[0029] Furthermore, in this embodiment, the locking cap 200 is provided with a first quantitative indicator mark (not shown) and a second quantitative indicator mark (not shown), and the pressing head 300 is provided with a pressing mark (not shown). When the pressing head 300 is rotated so that the pressing mark is aligned with the first quantitative indicator mark / second quantitative indicator mark, the guide rib 302 is located directly above the first quantitative guide groove 201 / second quantitative guide groove 202, which can quantitatively press out the liquid; and visually provide an alignment indicator signal.

[0030] See further Figure 3 In this embodiment, the limiting ring cylinder 203 is provided with a first limiting wall 205 and a second limiting wall 206. Both the first limiting wall 205 and the second limiting wall 206 are located on the rotation path of the guide rib 302. When the guide rib 302 abuts against the first limiting wall 205 / second limiting wall 206, the guide rib 302 is located directly above the first quantitative guide groove 201 / second quantitative guide groove 202, which can quantitatively press out liquid; and provide an alignment indication signal on the tactile aspect.

[0031] For more details, see Figure 3 In this embodiment, one vertical groove edge of the first limiting wall 205 and the first quantitative guide groove 201 is located in the same vertical plane, and one vertical groove edge of the second limiting wall 206 and the second quantitative guide groove 202 is located in the same vertical plane. Thus, when the guide rib 302 abuts against the first limiting wall 205 / second limiting wall 206, the user presses down on the pressing head 300, and the guide rib 302 can smoothly slide from the first limiting wall 205 / second limiting wall 206 into the first quantitative guide groove 201 / second quantitative guide groove 202, making pressing more convenient and smoother.

[0032] See further Figures 1-4In this embodiment, the quantitative dispensing head structure also includes a protective cover 400, which is detachably and fixedly connected to the locking cover 200, preferably by snap-fit, to cover and protect the pressing head 300; the inner wall of the protective cover 400 is provided with a positioning block 401, and the locking cover 200 is provided with a positioning groove 207; only when the guide rib 302 is located between the two guide slopes 204 can the positioning block 401 be aligned with the positioning groove 207, so that the protective cover 400 covers the pressing head 300, providing additional protection against accidental contact during transportation.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In the description of this application, "multiple" is understood as "at least two." "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. A connected to B can represent: A and B directly connected and A and B connected through C. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A dosing head structure, characterized by, The utility model provides a pump suction assembly (100) is provided with the lock cover (200) on, the lock cover (200) rotatable is provided with the press head (300) on, the press head (300) liquid inlet pipe (301) with the liquid outlet pipe (101) of pump suction assembly (100) is connected, the lock cover (200) is provided with the first ration guide groove (201) and the second ration guide groove (202) of different depth, the press head (300) is provided with the guide rib (302) in, the press head (300) relative the lock cover (200) rotates, when the guide rib (302) is located first ration guide groove (201) / second ration guide groove (202) just above, just can pass through the press head (300) and press down pump suction assembly (100), when the guide rib (302) coordinates into first ration guide groove (201) / second ration guide groove (202) and moves down, the maximum stroke of press head (300) and press pump suction assembly (100) is equal to the depth of first ration guide groove (201) / second ration guide groove (202), to ration liquid outlet, cancel press, pump suction assembly (100) drives the press head (300) and retreats to first ration guide groove (201) / second ration guide groove (202) just above.

2. The liquid outlet head structure according to claim 1, characterized in that, The lock cover (200) is provided with a vertical limiting ring cylinder (203), and the first ration guide groove (201) and the second ration guide groove (202) are vertically arranged on the limiting ring cylinder (203); the press head (300) rotates relative to the lock cover (200), and before the guide rib (302) rotates to the first ration guide groove (201) / the second ration guide groove (202) just above, the upper end surface of the limiting ring cylinder (203) always abuts against the guide rib (302), so as to limit the downward movement of the guide rib (302).

3. The liquid outlet head structure according to claim 2, characterized in that The upper end surface of the limiting ring cylinder (203) is provided with two guide steep slopes (204), and when the press head (300) rotates relative to the lock cover (200), the minimum force required for the guide rib (302) to pass through the guide steep slopes (204) is greater than the minimum force required for rotating the press head (300).

4. The liquid outlet head structure according to claim 2, characterized in that, The lock cover (200) is provided with a first ration indication mark and a second ration indication mark, and the press head (300) is provided with a press mark, when the press mark is aligned with the first ration indication mark / the second ration indication mark, the guide rib (302) is located just above the first ration guide groove (201) / the second ration guide groove (202).

5. The liquid outlet head structure according to claim 2, characterized in that, The limiting ring barrel (203) is provided with a first limiting wall (205) and a second limiting wall (206), both of which are located on the rotating path of the guide rib (302), and when the guide rib (302) abuts against the first limiting wall (205) / second limiting wall (206), the guide rib (302) is located directly above the first quantitative guide groove (201) / second quantitative guide groove (202).

6. The liquid outlet head structure according to claim 5, characterized in that The first limiting wall (205) and one vertical groove side of the first quantitative guide groove (201) are located in the same vertical plane, and the second limiting wall (206) and one vertical groove side of the second quantitative guide groove (202) are located in the same vertical plane.

7. The liquid outlet head structure according to claim 3, characterized in that, Further comprising a protective cover (400) which is detachably fixedly connected with the lock cover (200) to cover the pressing head (300).

8. The liquid outlet head structure according to claim 7, characterized in that The inner wall of the protective cover (400) is provided with a positioning block (401), and the lock cover (200) is provided with a positioning groove (207); only when the guide rib (302) is located between the two guide steep slopes (204), the positioning block (401) can be aligned into the positioning groove (207) to cover the pressing head (300) with the protective cover (400).

Images