An emulsion pump with an anti-retraction toothed cap

Abstract

This utility model provides a lotion pump with an anti-reverse cap, belonging to the field of lotion pump technology. It includes a body and a bottle body, with a cap fitted onto the body, connecting the body to the bottle body via the cap. The body includes a pump head and a pump body, with the pump head mounted on the pump body. An end cap is rotatably mounted on the outlet end of the pump head. The pump head has a groove, within which a sliding block is slidably mounted. The sliding block is hinged to the end cap via a first connecting rod. A guide groove is provided on the top of the cap, within which a guide post is slidably mounted. A sleeve passes through the pump head, and the guide post passes through the sleeve. A turntable is located at one end of the guide post, connected to the sliding block via a second connecting rod. This device, by providing a rotatable end cap at the outlet end of the pump head and utilizing the rotation of the cap to open and close the end cap, prevents external impurities from entering the pump head, improving the device's anti-contamination performance.

Description

Technical Field

[0001] This utility model belongs to the field of emulsion pump technology, and more specifically, it relates to an emulsion pump with an anti-reverse toothed cap. Background Technology

[0002] In the cosmetic packaging industry, emulsion pumps with anti-backflow caps are widely used in various cosmetic emulsion packaging to facilitate user dispensing and prevent refilling. However, traditional emulsion pump heads have a straight-through structure, which easily leads to pump head contamination. Furthermore, after emulsion is dispensed, it can easily flow back into the pump chamber, causing inaccurate metering and potentially accelerating emulsion deterioration due to air mixing during the backflow process, negatively impacting product quality. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an emulsion pump with an anti-reverse toothed cap, thereby solving the technical problem in the prior art where the pump head of a traditional emulsion pump has a straight-through structure, which easily leads to pump head contamination.

[0004] The purpose and function of this utility model of an emulsion pump with an anti-retraction cap are achieved by the following specific technical means: A lotion pump with an anti-reverse cap includes a body and a bottle. The cap is fitted onto the body and connected to the bottle via the cap. The body includes a pump head and a pump body. The pump head is mounted on the pump body. An end cap is rotatably provided at the outlet end of the pump head. The pump head has a groove, and a sliding block is slidably provided within the groove. The sliding block is hinged to the end cap via a first connecting rod. A guide groove is provided at the top of the cap, and a guide post is slidably provided within the groove. A sleeve passes through the pump head, and the guide post passes through the sleeve. A turntable is provided at one end of the guide post, and the turntable is connected to the sliding block via a second connecting rod.

[0005] According to a preferred embodiment, the sleeve is provided with a first guide groove, which is a spiral groove; the inner wall of the guide post is provided with a protrusion, which is slidably connected to the first guide groove.

[0006] According to a preferred embodiment, the pump head is provided with two sets of rotating ears, the end cover is installed on the two sets of rotating ears, the rotating ears are provided with arc grooves, the end cover is connected to the first connecting rod through a rotating shaft, and the two ends of the rotating shaft are respectively slidably connected to the arc grooves of the two sets of rotating ears.

[0007] According to a preferred embodiment, a flow channel is provided inside the pump head, and an installation groove is provided at the top of the pump head. The installation groove communicates with the flow channel. A compression spring and a small ball are provided inside the installation groove. An installation cover is provided at the opening end of the installation groove. The two ends of the compression spring contact the installation cover and the small ball, respectively.

[0008] According to a preferred embodiment, the flow channel is Z-shaped, and a septum is provided inside the flow channel, with the small ball located on the septum.

[0009] According to a preferred embodiment, the pump head is provided with a magnet, the end cap is provided with an attraction block, and the magnet is connected to the attraction block.

[0010] According to a preferred embodiment, the tooth cover is provided with a limiting block, and the pump head is provided with a limiting groove and a second guide groove, and the limiting block passes through the second guide groove and is locked in the limiting groove.

[0011] According to a preferred embodiment, the cap is provided with multiple sets of movable teeth, and the bottle opening is provided with locking teeth, the movable teeth being engaged with the locking teeth.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, by setting a rotatable end cap at the liquid outlet of the pump head and utilizing the rotation of the toothed cap to open and close the end cap, allows the user to prevent external impurities from entering the pump head, thus improving the device's anti-contamination performance. After installing the emulsion pump, the user can control the opening and closing of the end cap by rotating the toothed cap, allowing the user to close the end cap to protect the pump head when not in use, thereby improving the device's ability to keep the pump head clean.

[0013] 2. When using this device, the user can prevent emulsion from flowing back into the pump chamber through the one-way rotation mechanism formed by the moving teeth on the cap and the locking teeth at the bottle opening. Then, through the Z-shaped flow channel structure with septa and small balls, the device can further prevent emulsion backflow after it is extruded by using the small balls and the compression spring, providing the user with a more stable and reliable emulsion dispensing experience and improving the device's performance in preventing emulsion backflow. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembled structure of this utility model; Figure 2 yes Figure 1 Enlarged view of region a in the middle; Figure 3 yes Figure 1 Enlarged view of region b in the middle; Figure 4 This is a schematic diagram of the structure of the turntable of this utility model; Figure 5 yes Figure 4 Enlarged view of region c in the middle; Figure 6 This is a schematic diagram of the structure of the tooth cap of this utility model; Figure 7 This is a schematic diagram of the bottle body of this utility model.

[0015] In the diagram, the correspondence between component names and drawing numbers is as follows: 11. Pump head; 12. Pump body; 13. Flow channel; 14. Mounting groove; 15. Compression spring; 16. Small ball; 17. Mounting cover; 18. End cover; 19. Slide groove; 21. Sliding block; 22. First connecting rod; 23. Tooth cover; 24. Guide rail groove; 25. Sleeve; 26. Guide post; 27. Turntable; 28. Second connecting rod; 29. ​​Partition; 31. First guide groove; 32. Protrusion; 33. Rotating ear; 34. Arc groove; 35. Rotating shaft; 36. Magnet; 37. Attraction block; 38. Limiting block; 39. Limiting groove; 41. Second guide groove; 42. Bottle body; 43. Moving tooth; 44. Clamping tooth. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0017] Example:

[0018] like Figures 1 to 7As shown, this utility model provides an emulsion pump with an anti-backflow cap, including a main body and a bottle body 42. A cap 23 is fitted onto the main body, connecting the main body to the bottle body 42 via the cap 23. This connection structure prevents the cap 23 from rotating backward, avoiding emulsion backflow and improving the device's anti-backflow performance. The main body includes a pump head 11 and a pump body 12, with the pump head 11 mounted on the pump body 12. This mounting structure ensures stable operation of the pump head 11, guaranteeing normal emulsion extraction and extrusion, and improving the overall structural stability of the device. An end cap 18 is rotatably provided at the outlet end of the pump head 11. The end cap 18 prevents external impurities from entering the pump head 11, keeping it clean and improving the device's anti-contamination capability. The pump head 11 has a groove 19, within which a sliding block 21 is slidably mounted. The sliding block 21 is hinged to the end cover 18 via a first connecting rod 22. This transmission structure, consisting of the groove 19, the sliding block 21, and the first connecting rod 22, enables control of the opening and closing of the end cover 18 by the rotation of the toothed cover 23, improving the ease of operation. The top of the toothed cover 23 has a guide rail groove 24, within which a guide post 26 is slidably mounted. The mating structure of the guide rail groove 24 and the guide post 26 guides the direction of rotation of the guide post 26, ensuring stable transmission and improving the overall transmission stability of the device. A guide post 26 passes through the pump head 11 and is housed within a sleeve 25. One end of the guide post 26 has a turntable 27, which is connected to the sliding block 21 via a second connecting rod 28. By setting up a transmission structure consisting of guide post 26, turntable 27 and second connecting rod 28, the downward pressing motion of pump head 11 can be converted into linear motion of sliding block 21, thereby controlling the opening and closing of end cover 18.

[0019] like Figure 1 , 2 As shown in Figure 4, the sleeve 25 has a first guide groove 31, which is a spiral groove; the inner wall of the guide post 26 has a protrusion 32, which is slidably connected to the first guide groove 31. When the sleeve 25 slides within the guide post 26, the guide post 26 rotates, providing power for the movement of the turntable 27. The sliding connection between the protrusion 32 on the inner wall of the guide post 26 and the first guide groove 31 prevents deviation and improves the transmission accuracy of the device.

[0020] like Figure 1 , 3As shown in Figure 5, the pump head 11 is provided with two sets of rotating ears 33. The end cover 18 is installed on the two sets of rotating ears 33. Through the installation structure of the rotating ears 33 and the end cover 18, a stable support and rotation foundation can be provided for the end cover 18, improving the rotation stability of the end cover 18. The rotating ears 33 are provided with arc grooves 34. The end cover 18 and the first connecting rod 22 are connected by a rotating shaft 35. The two ends of the rotating shaft 35 are slidably connected to the arc grooves 34 of the two sets of rotating ears 33 respectively. Through the cooperative structure of the arc grooves 34, the rotating shaft 35 and the rotating ears 33, the angle and range of rotation of the end cover 18 can be controlled.

[0021] A flow channel 13 is provided inside the pump head 11, and a mounting groove 14 is provided on the top of the pump head 11, which communicates with the flow channel 13. A compression spring 15 and a small ball 16 are provided inside the mounting groove 14, and a mounting cover 17 is provided at the opening end of the mounting groove 14. The two ends of the compression spring 15 are in contact with the mounting cover 17 and the small ball 16, respectively. Through the structure composed of the mounting groove 14, the compression spring 15, the small ball 16, and the mounting cover 17, the backflow of the emulsion can be prevented after the emulsion is extruded by the action of the small ball 16 and the compression spring 15, thereby improving the backflow prevention capability of the device.

[0022] The flow channel 13 is Z-shaped, and a partition 29 is provided inside the flow channel 13, with the small ball 16 located on the partition 29. The combination of the Z-shaped flow channel 13, the partition 29 and the small ball 16 can extend the emulsion flow path, slow down the flow rate, make the emulsion flow more stable, and enhance the anti-backflow effect, thereby improving the emulsion flow stability and anti-backflow performance of the device.

[0023] A magnet 36 is provided on the pump head 11, and an attraction block 37 is provided on the end cover 18. The magnet 36 is connected to the attraction block 37. By setting the connection structure between the magnet 36 and the attraction block 37, the end cover 18 can be made to fit snugly against the pump head 11 when closed, further preventing impurities from entering and improving the sealing performance of the device.

[0024] like Figures 3 to 7 As shown, the tooth cover 23 is provided with a limiting block 38, and the pump head 11 is provided with a limiting groove 39 and a second guide groove 41. The limiting block 38 passes through the second guide groove 41 and is locked in the limiting groove 39. During daily use, when the user accidentally touches the pump head 11, the pump head 11 will not rotate arbitrarily or undergo axial displacement due to the limitation of the limiting block 38 in the limiting groove 39 and the second guide groove 41, thus avoiding accidental rotation of the pump head 11 due to accidental contact. When it is needed, the pump head 11 must be rotated to a specific position, that is, when the limiting block 38 is aligned with the second guide groove 41, before the pressing operation can be performed.

[0025] The cap 23 is provided with multiple sets of movable teeth 43, and the opening end of the bottle body 42 is provided with locking teeth 44, with the movable teeth 43 locked onto the locking teeth 44. Through the one-way locking structure between the movable teeth 43 on the cap 23 and the locking teeth 44 on the bottle body 42, the cap 23 can be prevented from rotating in reverse, enhancing the anti-backflow effect and preventing secondary filling, thus improving the anti-backflow and anti-secondary filling performance of the device.

[0026] The specific usage and function of this embodiment are as follows: In use, rotating the pump head 11 causes the limiting block 38 to slide along the second guide groove 41. The pump head 11 is only pressable when it rotates to the corresponding position on the second guide groove 41. This prevents accidental pressing during daily storage or carrying, improving product safety and preventing waste or contamination caused by accidental emulsion extrusion. When the pump head 11 is rotated to the pressable position, pressing it causes the guide column 26 to rotate due to the spiral first guide groove 31 on the sleeve 25 slidingly connecting with the protrusion 32 on the inner wall of the guide column 26. This rotation drives the turntable 27 at one end of the guide column 26 to rotate. The turntable 27 pushes the sliding block 21 in the slide groove 19 via the second connecting rod 28. The sliding block 21, via the first connecting rod 22, causes the end cap 18 to rotate and open around the shaft 35 on the rotating ear 33, allowing the user to press the pump head 11 to extrude the emulsion.

[0027] The Z-shaped flow channel 13 inside the pump head 11 slows down the emulsion flow rate, making its flow smoother. The small ball 16 and the compression spring 15 located on the septum 29 prevent emulsion backflow after extrusion. The septum 29 inside the flow channel 13 further assists the small ball 16 in enhancing the anti-backflow effect. The magnet 36 on the pump head 11 is connected to the attraction block 37 on the end cap 18, which fits when the end cap 18 is closed to prevent external impurities from entering. The moving teeth 43 on the toothed cap 23 engage with the retaining teeth 44 at the opening end of the bottle body 42, ensuring that the toothed cap 23 can only rotate in one direction, preventing emulsion backflow. The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A lotion pump with an anti-reverse cap, comprising a body and a bottle (42), wherein a cap (23) is fitted onto the body, and the body is connected to the bottle (42) via the cap (23), characterized in that: The main body includes a pump head (11) and a pump body (12). The pump head (11) is mounted on the pump body (12). The pump head (11) has an end cap (18) rotatably mounted on the liquid outlet end. The pump head (11) has a sliding groove (19). A sliding block (21) is slidably mounted in the sliding groove (19). The sliding block (21) is hinged to the end cap (18) via a first connecting rod (22). The top of the toothed cover (23) has a guide rail groove (24). A guide post (26) is slidably mounted in the guide rail groove (24). A sleeve (25) passes through the pump head (11). The guide post (26) passes through the sleeve (25). A turntable (27) is mounted at one end of the guide post (26). The turntable (27) is connected to the sliding block (21) via a second connecting rod (28).

2. The emulsion pump with an anti-retraction toothed cap according to claim 1, characterized in that: The sleeve (25) is provided with a first guide groove (31), which is a spiral groove; the inner wall of the guide post (26) is provided with a protrusion (32), which is slidably connected to the first guide groove (31).

3. A lotion pump with an anti-retraction toothed cap according to claim 2, characterized in that: The pump head (11) is provided with two sets of rotating ears (33), and the end cover (18) is installed on the two sets of rotating ears (33). The rotating ears (33) are provided with arc grooves (34). The end cover (18) is connected to the first connecting rod (22) through a rotating shaft (35). The two ends of the rotating shaft (35) are slidably connected to the arc grooves (34) of the two sets of rotating ears (33).

4. A lotion pump with an anti-retraction toothed cap according to claim 1, characterized in that: The pump head (11) has a flow channel (13) inside, and the top of the pump head (11) has an installation groove (14) connected to the flow channel (13). The installation groove (14) has a compression spring (15) and a small ball (16) inside. The opening end of the installation groove (14) has an installation cover (17). The two ends of the compression spring (15) are in contact with the installation cover (17) and the small ball (16) respectively.

5. A lotion pump with an anti-retraction toothed cap according to claim 4, characterized in that: The flow channel (13) is Z-shaped, and a septum (29) is provided inside the flow channel (13). The ball (16) is located on the septum (29).

6. A lotion pump with an anti-retraction toothed cap according to claim 5, characterized in that: The pump head (11) is provided with a magnet (36), and the end cap (18) is provided with an attraction block (37). The magnet (36) is connected to the attraction block (37).

7. A lotion pump with an anti-retraction toothed cap according to claim 1, characterized in that: The tooth cover (23) is provided with a limiting block (38), and the pump head (11) is provided with a limiting groove (39) and a second guide groove (41). The limiting block (38) passes through the second guide groove (41) and is locked in the limiting groove (39).

8. A lotion pump with an anti-retraction toothed cap according to claim 7, characterized in that: The cap (23) is provided with multiple sets of movable teeth (43), and the bottle body (42) has a locking tooth (44) at the opening end, and the movable teeth (43) are locked on the locking tooth (44).

Images