Double-pump thread screwing structure with stable sealing performance

Abstract

The utility model relates to the technical field of double-pump-core pressing pumps, in particular to a double-pump thread screwing structure with stable sealing performance, which comprises a thread cover, a first main body and a second main body, a first limit ring is arranged on the thread cover, and second limit rings are arranged on the first main body and the second main body; the first main body and the second main body are fixedly connected to the sealing connecting piece; the first limiting ring is clamped above the second limiting ring, the sealing connecting piece is fixedly connected below the second limiting ring, and the thread cover can rotate relative to the sealing connecting piece. The sealing connecting piece is arranged, the first main body and the second main body are fixedly connected to the sealing connecting piece, the thread cover is rotationally connected to the first main body and the second main body, the thread cover can rotate relative to the sealing connecting piece, the sealing connecting piece is not interfered when the thread cover rotates and is locked, and the sealing performance is stable; in the production injection molding process of the thread screwing matching structure, the size is better controlled, and the sealing effect is more stable than that of a strong pressure type buckle.

Description

Technical Field

[0001] This utility model relates to the field of dual-pump core push pump technology, and in particular to a dual-pump thread tightening structure with stable sealing performance. Background Technology

[0002] Most dual-pump push-button pumps on the market have a snap-fit ​​high-pressure structure. The sealing performance of the snap-fit ​​high-pressure structure is unstable, and the control of product manufacturing dimensions is very strict. Dimensional deviations can lead to misalignment or poor pressure, resulting in a significant risk of leakage abnormalities during production and transportation.

[0003] For example, the press-type replaceable multi-pump cosmetic container disclosed in the patent with announcement number CN218527987U uses a snap-on high-pressure structure to seal two pump cores to the bottle body. However, the sealing performance of the snap-on high-pressure structure is unstable, and the control of product manufacturing dimensions is relatively high. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a dual-pump thread tightening structure with stable sealing performance and better dimensional control.

[0005] The technical solution adopted by this utility model to solve the problem is: a dual-pump threaded tightening structure with stable sealing performance, including a threaded cover, a first body and a second body, wherein a first limiting ring is provided on the threaded cover, and a second limiting ring is provided on the first body and the second body; it also includes a sealing connector, wherein the first body and the second body are sealed and installed on the sealing connector; the second limiting ring or the sealing connector is pressed against the first limiting ring; the threaded cover can rotate relative to the sealing connector.

[0006] As a further improvement to the above technical solution, both the second limiting ring and the sealing connector are pressed together with the first limiting ring.

[0007] As a further improvement to the above technical solution, the first limiting ring, the second limiting ring, and the sealing connector are pressed together in sequence.

[0008] As a further improvement to the above technical solution, the sealing connector is provided with a boss in the middle, and recesses are provided on the left and right sides of the boss. The two recesses are independent of each other, and mounting holes are provided on the recesses. The first body and the second body pass through the mounting holes, and the second limiting ring is connected in the corresponding recess.

[0009] As a further improvement to the above technical solution, the sealing connector is made of flexible material, and the mounting hole is interference-fitted with the first body and the second body.

[0010] As a further improvement to the above technical solution, the centers of the two mounting holes are located on the same diameter of the sealing connector.

[0011] As a further improvement to the above technical solution, the outer edge of the second limiting ring is flush with the outer edge of the recess.

[0012] As a further improvement to the above technical solution, the first body and the second body are also provided with a longitudinal limiting part, the longitudinal limiting part and the second limiting ring have a gap and form a groove, and the two opposite arc edges of the first limiting ring are engaged in the groove.

[0013] As a further improvement to the above technical solution, it also includes a bottle body, the upper end of which is provided with an external thread, the inner side of which is provided with an internal thread, the threaded cap is screwed onto the bottle body, and the sealing connector is pressed between the second limiting ring and the bottle body.

[0014] As a further improvement to the above technical solution, it also includes a push-button, which is provided with dual pipes that are respectively connected to the first body and the second body.

[0015] The beneficial effects of this utility model are as follows: By setting a sealing connector, the first main body and the second main body are fixedly connected to the sealing connector, and the threaded cap is rotatably connected to the first main body and the second main body. The threaded cap can rotate relative to the sealing connector. When the threaded cap is rotated and locked, it does not interfere with the sealing connector, and the sealing performance is stable. In the production injection molding process, the threaded tightening structure allows for better control of dimensions, and the sealing effect is more stable than that of the high-pressure buckle. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a partial exploded view of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the sealing connector of this utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of this utility model;

[0022] In the diagram: 1-Threaded cap, 11-First limiting ring, 12-Internal thread, 21-First body, 22-Second body, 23-Second limiting ring, 24-Longitudinal limiting part, 25-Slot, 3-Sealing connector, 31-Boss, 32-Recess, 33-Mounting hole, 4-Bottle body, 5-Push head. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Reference Figures 1 to 5A dual-pump threaded tightening structure with stable sealing includes a threaded cap 1, a first body 21, and a second body 22, which are independent of each other. A first limiting ring 11 is provided on the inner side of the threaded cap 1, and second limiting rings 23 are provided on the first body 21 and the second body 22. It also includes a sealing connector 3, on which the first body 21 and the second body 22 are sealed and installed. The first limiting ring 11 is engaged above the second limiting ring 23, and the threaded cap 1 is relatively fixed to the first... On the main body 21 and the second main body 22, the sealing connector 3 is pressed against the lower part of the second limiting ring 23. The threaded cap 1 can rotate relative to the sealing connector 3, and the rotation is horizontal. The sealing connector 3 is pressed against the first main body 21 and the second main body 22. The threaded cap 1 can rotate relative to the sealing connector 3. When the threaded cap 1 is rotated and locked with the bottle body 4, the upper end of the bottle body 4 gradually squeezes the sealing connector 3 to improve the sealing effect. The screw-tight fit structure allows for better dimensional control during the injection molding process, and the sealing effect is more stable than that of the high-pressure buckle.

[0028] In some other implementations, the sealing connector 3 may be directly pressed against the first limiting ring 11 (the second limiting ring 23 is pressed against the first limiting ring 11), or both the second limiting ring 23 and the sealing connector 3 may be pressed against the first limiting ring 11.

[0029] In a preferred embodiment, a boss 31 is provided in the middle of the sealing connector 3, and recesses 32 are provided on the left and right sides of the boss 31. The two recesses 32 are independent of each other, and mounting holes 33 are provided on the recesses 32. The first body 21 and the second body 22 are fixedly connected in the corresponding recesses 32 through the mounting holes 33. The boss 31 is provided so that the two bodies do not interfere with each other.

[0030] In a preferred embodiment, the sealing connector 3 is made of a flexible material, which may be, but is not limited to, silicone, rubber, etc. The mounting hole 33 is interference-fitted with the first body 21 and the second body 22 to further improve the sealing performance.

[0031] In a preferred embodiment, the centers of the two mounting holes 33 are located on the same diameter of the sealing connector 3.

[0032] In a preferred embodiment, the outer edge of the second limiting ring 23 is flush with the outer edge of the recess 32, and the projections of the second limiting ring 23 and the internal thread 12 on the threaded cap 1 in the vertical direction are staggered to prevent mutual interference.

[0033] In some embodiments, the first body 21 and the second body 22 are further provided with a longitudinal limiting part 24. The longitudinal limiting part 24 and the second limiting ring 23 have a gap and form a groove 25. The two opposite arc edges of the first limiting ring 11 are engaged in the groove 25. The groove 25 is annular and restricts the first limiting ring 11 from moving up and down. The first limiting ring 11 can slide (rotate) horizontally in the groove 25.

[0034] Specifically, it also includes a bottle body 4, the upper end of which is provided with an external thread, and the inner side of the threaded cap 1 is provided with an internal thread 12. The threaded cap 1 is screwed onto the bottle body 4, and the sealing connector 3 is pressed between the second limiting ring 23 and the bottle body 4. The bottle body 4 is provided with two independent cavities, and the first main body 21 and the second main body 22 are respectively connected to the two cavities.

[0035] Specifically, it also includes a push-button 5, which has a dual pipeline that is connected to the first body 21 and the second body 22 respectively.

[0036] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A dual-pump threaded tightening structure with stable sealing performance, characterized in that: It includes a threaded cap (1), a first body (21) and a second body (22), wherein a first limiting ring (11) is provided on the threaded cap (1), and a second limiting ring (23) is provided on the first body (21) and the second body (22); It also includes a sealing connector (3), on which the first body (21) and the second body (22) are sealed and mounted; The second limiting ring (23) or the sealing connector (3) is pressed against the first limiting ring (11); The threaded cap (1) is rotatable relative to the sealing connector (3).

2. The dual-pump threaded tightening structure with stable sealing performance as described in claim 1, characterized in that: The second limiting ring (23) and the sealing connector (3) are both pressed against the first limiting ring (11).

3. The dual-pump threaded tightening structure with stable sealing performance as described in claim 1, characterized in that: The first limiting ring (11), the second limiting ring (23), and the sealing connector (3) are pressed together in sequence.

4. The dual-pump threaded tightening structure with stable sealing performance as described in claim 1, characterized in that: The sealing connector (3) has a boss (31) in the middle, and recesses (32) are provided on the left and right sides of the boss (31). The two recesses (32) are independent of each other. The recesses (32) are provided with mounting holes (33). The first body (21) and the second body (22) pass through the mounting holes (33), and the second limiting ring (23) is connected in the corresponding recesses (32).

5. The dual-pump threaded tightening structure with stable sealing performance as described in claim 4, characterized in that: The sealing connector (3) is made of flexible material, and the mounting hole (33) is interference-fitted with the first body (21) and the second body (22).

6. The dual-pump threaded tightening structure with stable sealing performance as described in claim 4, characterized in that: The centers of the two mounting holes (33) are located on the same diameter of the sealing connector (3).

7. The dual-pump threaded tightening structure with stable sealing performance as described in claim 4, characterized in that: The outer edge of the second limiting ring (23) is flush with the outer edge of the recess (32).

8. The dual-pump threaded tightening structure with stable sealing performance as described in claim 3, characterized in that: The first body (21) and the second body (22) are also provided with a longitudinal limiting part (24), and there is a gap between the longitudinal limiting part (24) and the second limiting ring (23) to form a slot (25), and the first limiting ring (11) is engaged in the slot (25).

9. The dual-pump threaded tightening structure with stable sealing performance as described in claim 3, characterized in that: It also includes a bottle body (4), the upper end of which is provided with an external thread, and the inner side of the threaded cap (1) is provided with an internal thread (12). The threaded cap (1) is screwed onto the bottle body (4), and the sealing connector (3) is pressed between the second limiting ring (23) and the bottle body (4).

10. The dual-pump threaded tightening structure with stable sealing performance as described in claim 1, characterized in that: It also includes a push-button (5), which has a double pipe that is connected to the first body (21) and the second body (22) respectively.

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