Leak-proof tableware detergent bottle cap structure

Abstract

This utility model discloses a leak-proof dishwashing detergent bottle cap structure, including a bottle cap, a liquid outlet tube fixedly installed on the bottle cap, a fixing frame fixedly installed inside the liquid outlet tube, a piston sleeved on the fixing frame, a retaining ring fixedly installed inside the liquid outlet tube, the piston and the retaining ring being movably engaged, two sets of symmetrically distributed springs movably sleeved on the fixing frame, the two ends of the two sets of springs being fixedly connected to the piston and the fixing frame respectively, an installation ring being rotatably installed inside the bottle cap, and multiple sets of annularly distributed closing plates being rotatably installed inside the bottle cap. Through the set springs, fixing frame, piston, etc., when the user releases the pump head, under the strong rebound action of the two sets of symmetrical springs, the piston quickly returns to its original position and tightly engages with the retaining ring, instantly cutting off the liquid outlet channel, effectively overcoming the liquid adhesion force and gravity, forcibly pulling back or intercepting the liquid remaining in the liquid outlet nozzle and proximal channel upstream of the closing point.

Description

Technical Field

[0001] This utility model relates to the technical field of detergent bottle cap structure, specifically a leak-proof tableware detergent bottle cap structure. Background Technology

[0002] Detergents are products specifically formulated for cleaning through the washing process. Their main components typically consist of surfactants, builders, and additives. There are many types of detergents; based on the type of dirt they remove, they can be divided into heavy-duty detergents and light-duty detergents; based on their form, they can be in various forms such as powder, block, paste, slurry, and liquid. In the packaging of daily chemical products such as dishwashing detergents, pump-type caps are widely used due to their convenience and controllable dosage.

[0003] In existing technologies, after a user presses the pump head to dispense detergent, the liquid remaining in the bottle's internal channels and at the outlet cannot be effectively recovered. Due to liquid adhesion and gravity, this residual liquid slowly drips over several seconds to minutes after the pressing action, contaminating the bottle, countertop, or the user's hands. This phenomenon is particularly severe when the bottle is tilted or vibrated, and the liquid passages in existing pump caps are typically open when not in use. When the bottle is squeezed, inverted, or subjected to transport vibrations, liquid may seep into the pump chamber through capillary action or pressure changes, eventually leaking out from the outlet. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof bottle cap structure for dishwashing detergent to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof dishwashing detergent bottle cap structure, comprising a bottle cap, a liquid outlet tube fixedly installed on the bottle cap, a fixing frame fixedly installed inside the liquid outlet tube, a piston sleeved on the fixing frame, a retaining ring fixedly installed inside the liquid outlet tube, the piston and the retaining ring being movably engaged, two sets of symmetrically distributed springs movably sleeved on the fixing frame, the two ends of the two sets of springs being fixedly connected to the piston and the fixing frame respectively, an installation ring rotatably installed inside the bottle cap, multiple sets of annularly distributed closing plates rotatably installed inside the bottle cap, the multiple sets of closing plates being rotatably connected to the bottle cap via an installation shaft, two sets of symmetrically distributed ratchet wheels sleeved on the left side of the installation shaft, and two sets of symmetrically distributed pawls provided inside the bottle cap wall.

[0006] As a further preferred embodiment of this technical solution, a branch pipe is provided between the bottle cap and the liquid outlet pipe, and the connection end of the branch pipe and the liquid outlet pipe is located on the left side of the retaining ring.

[0007] As a further preferred embodiment of this technical solution, multiple sets of mounting shafts are arranged in a ring around a mounting ring, a toothed ring is sleeved on the mounting ring, and a first gear is sleeved on each set of mounting shafts, with each set of first gears meshing with the toothed ring.

[0008] As a further preferred embodiment of this technical solution, the two sets of pawls are respectively configured to correspond to the two sets of ratchet wheels, the two sets of pawls are meshed with the corresponding ratchet wheels, the two sets of pawls are rotatably connected to the bottle cap through a rotating rod, the two sets of rotating rods are each fitted with a first torsion spring, the two ends of the first torsion spring are respectively fixedly connected to the pawl and the bottle cap, and the two sets of rotating rods are each fitted with a second gear.

[0009] As a further preferred embodiment of this technical solution, two sets of racks are slidably installed inside the bottle cap, and the two sets of racks are distributed corresponding to the two sets of rotating rods, and the two sets of racks are respectively meshed with the corresponding second gears.

[0010] As a further preferred embodiment of this technical solution, a slide is slidably installed inside the bottle cap, and the two ends of the slide are respectively fixedly connected to two sets of racks. A positioning block is fixedly installed on the slide, and a positioning rod corresponding to the positioning block is fixedly installed inside the bottle cap. Two sets of symmetrically distributed positioning frames are sleeved on the positioning rod, and the positioning block can be inserted between the two sets of positioning frames.

[0011] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed second torsion springs are sleeved on the positioning rod, and the two ends of the second torsion springs are fixedly connected to the positioning frame and the positioning rod, respectively. A sleeve is sleeved on both sets of the positioning frame.

[0012] This utility model provides a leak-proof bottle cap structure for dishwashing detergent, which has the following beneficial effects:

[0013] (1) With the spring, fixing frame and piston set up, when the user releases the pump head, the piston quickly resets and is tightly locked with the retaining ring under the strong rebound action of the two sets of symmetrical springs, instantly cutting off the liquid outlet channel. This mechanical quick closure effectively overcomes the liquid adhesion force and gravity, forcibly pulling back or intercepting the liquid remaining in the outlet nozzle and the proximal channel upstream of the closure point, completely eliminating the phenomenon of slow liquid dripping within a few seconds to a few minutes after pressing, and avoiding contamination of the bottle body, table surface or user's hands.

[0014] (2) This utility model achieves the synchronous opening and closing of multiple sets of annular distributed closing plates through the linkage of the mounting ring, closing plate, ratchet and pawl and gear rack system. In non-use state, such as during transportation and storage, multiple sets of closing plates close synchronously, and under the bidirectional locking action of the double ratchet and pawl mechanism, the multiple sets of closing plates are kept in a forced closed state, physically isolating the main channel of liquid flow from the bottle to the outlet pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the bottle cap of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 This is a schematic diagram of the mounting shaft of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0020] In the diagram: 1. Bottle cap; 2. Dispensing pipe; 3. Branch pipe; 4. Fixing bracket; 5. Retaining ring; 6. Piston; 7. Spring; 8. Mounting ring; 9. Gear ring; 10. Closing plate; 11. Mounting shaft; 12. First gear; 13. Ratchet; 14. Pawl; 15. Rotating rod; 16. First torsion spring; 17. Second gear; 18. Rack; 19. Slide; 20. Positioning block; 21. Positioning rod; 22. Positioning bracket; 23. Sleeve; 24. Second torsion spring. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 and Figure 2As shown, in this embodiment, a leak-proof dishwashing detergent bottle cap structure includes a bottle cap 1, a liquid outlet pipe 2 fixedly installed on the bottle cap 1, a fixing frame 4 fixedly installed inside the liquid outlet pipe 2, a piston 6 sleeved on the fixing frame 4, a retaining ring 5 fixedly installed inside the liquid outlet pipe 2, the piston 6 and the retaining ring 5 being movably engaged, two sets of symmetrically distributed springs 7 movably sleeved on the fixing frame 4, the two ends of the two sets of springs 7 being fixedly connected to the piston 6 and the fixing frame 4 respectively, an installation ring 8 rotatably installed inside the bottle cap 1, multiple sets of annularly distributed closing plates 10 rotatably installed inside the bottle cap 1, the multiple sets of closing plates 10 being rotatably connected to the bottle cap 1 through an installation shaft 11, two sets of symmetrically distributed ratchet wheels 13 sleeved on the left side of the installation shaft 11, two sets of symmetrically distributed pawls 14 provided inside the wall of the bottle cap 1, a branch pipe 3 provided between the bottle cap 1 and the liquid outlet pipe 2, the branch pipe 3 and the liquid outlet pipe 2... The connecting end is located on the left side of the retaining ring 5. When the pump head is pressed, the liquid squeezes the piston 6 and compresses or stretches the two sets of springs 7 on the fixing bracket 4. The piston 6 moves away from the retaining ring 5, completing the extrusion of the liquid. When the user releases the pump head, under the strong rebound of the two sets of symmetrical springs 7, the piston 6 quickly returns to its original position and is tightly locked with the retaining ring 5, instantly cutting off the liquid outlet channel. This mechanical rapid closure effectively overcomes the effects of liquid adhesion and gravity, forcibly pulling back or trapping the liquid remaining in the outlet pipe 2 and the proximal channel upstream of the closure point. This completely eliminates the phenomenon of slow liquid dripping within seconds to minutes after pressing, avoiding contamination of the bottle body, countertop, or user's hands. At the same time, the liquid that does not flow out from the left side of the retaining ring 5 flows directly into the branch pipe 3 and into the main pipe of the bottle cap 1, preventing residual liquid in the outlet pipe from flowing out from the gap of the piston 6 during transportation.

[0023] like Figure 3 , Figure 4 and Figure 5As shown, multiple sets of mounting shafts 11 are arranged in a ring around the mounting ring 8. A toothed ring 9 is fitted onto the mounting ring 8. Each set of mounting shafts 11 is fitted with a first gear 12, which meshes with the toothed ring 9. Two sets of pawls 14 are respectively configured to mesh with two sets of ratchet wheels 13. Both sets of pawls 14 are rotatably connected to the bottle cap 1 via rotating rods 15. Each set of rotating rods 15 is fitted with a first torsion spring 16, the two ends of which are fixedly connected to the pawls 14 and the bottle cap 1, respectively. A second gear 17 is connected to the bottle cap 1. Two sets of racks 18 are slidably installed inside the bottle cap 1. The two sets of racks 18 are distributed corresponding to two sets of rotating rods 15. The two sets of racks 18 are respectively meshed with the corresponding second gears 17. A slide 19 is slidably installed inside the bottle cap 1. The two ends of the slide 19 are respectively fixedly connected to the two sets of racks 18. A positioning block 20 is fixedly installed on the slide 19. A positioning rod 21 corresponding to the positioning block 20 is fixedly installed inside the bottle cap 1. Two sets of symmetrically distributed positioning frames 22 are sleeved on the positioning rod 21. The positioning block 20 can be inserted between the two sets of positioning frames 22. There are two sets of symmetrically distributed second torsion springs 24. The two ends of the second torsion springs 24 are fixedly connected to the positioning frame 22 and the positioning rod 21, respectively. Each of the two positioning frames 22 is fitted with a sleeve 23. When not in use or in transport, the slide 19 in the bottle cap 1 can be pulled to drive the two sets of racks 18 to slide synchronously. This, in conjunction with the two sets of second gears 17 that mesh with them, drives the two sets of rotating rods 15 to rotate synchronously. This causes the two sets of pawls 14 to deflect away from the corresponding ratchet 13. At this time, the mounting shaft 11 rotates freely and, through the positioning block 20, engages with the two sets of positioning frames 22 fitted with sleeves 23 to complete the alignment. After the slide 19 is fixed in position, the mounting shaft 11 is rotated and multiple sets of closing plates 10 are closed synchronously under the action of multiple sets of first gears 12, gears and mounting rings 8, cutting off the main pipe of bottle cap 1. This can also effectively prevent detergent leakage during transportation. Then, the slide 19 is pulled in the opposite direction to release the two sets of positioning frames 22 from fixing the positions of positioning blocks 20 and slide 19. Under the action of the first torsion spring 16, the two sets of pawls 14 return to their original state of meshing with the corresponding ratchet 13, locking the mounting shaft 11 to prevent multiple sets of closing plates 10 from opening and closing unintentionally during transportation.

[0024] This utility model provides a leak-proof dishwashing detergent bottle cap structure. The specific working principle is as follows: When the pump head is pressed, the liquid squeezes the piston 6, compressing or stretching the two sets of springs 7 on the fixing bracket 4. The piston 6 moves away from the retaining ring 5, completing the liquid extrusion. When the user releases the pump head, under the strong rebound of the two sets of symmetrical springs 7, the piston 6 quickly returns to its original position and tightly engages with the retaining ring 5, instantly cutting off the liquid outlet channel. This mechanical rapid closure effectively overcomes the effects of liquid adhesion and gravity, forcibly pulling back or trapping the liquid remaining in the outlet pipe 2 and the proximal channel upstream of the closure point. This completely eliminates the phenomenon of slow liquid dripping for several seconds to several minutes after pressing, preventing contamination of the bottle body, countertop, or user's hands. Simultaneously, the portion of liquid that has not flowed out to the left of the retaining ring 5 flows directly into the branch pipe 3 and into the main pipe of the bottle cap 1, preventing residual liquid in the outlet pipe from flowing out from the gap in the piston 6 during transportation. When not in use or in transportation, the cap can be pulled... In the movable bottle cap 1, the slide 19 drives two sets of racks 18 to slide synchronously, which in turn drives two sets of rotating rods 15 to rotate synchronously. This causes the two sets of pawls 14 to deflect away from the corresponding ratchet 13. At this time, the mounting shaft 11 rotates freely and is fixed in position by the positioning block 20 into the two sets of positioning frames 22 fitted with sleeves 23. Then, the mounting shaft 11 is rotated and multiple sets of closing plates 10 are closed synchronously under the action of multiple sets of first gears 12, gears, and mounting rings 8, cutting off the main pipe of the bottle cap 1. This can also effectively prevent detergent leakage during transportation. Then, the slide 19 is pulled in the opposite direction to release the two sets of positioning frames 22 from fixing the positions of the positioning block 20 and the slide 19. Under the action of the first torsion spring 16, the two sets of pawls 14 return to their original state of engagement with the corresponding ratchet 13, locking the mounting shaft 11 and preventing the multiple sets of closing plates 10 from opening and closing unintentionally during transportation.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof dishwashing detergent bottle cap structure, comprising a bottle cap (1), characterized in that: A liquid outlet pipe (2) is fixedly installed on the bottle cap (1). A fixing frame (4) is fixedly installed inside the liquid outlet pipe (2). A piston (6) is sleeved on the fixing frame (4). A retaining ring (5) is fixedly installed inside the liquid outlet pipe (2). The piston (6) and the retaining ring (5) are movably engaged. Two sets of symmetrically distributed springs (7) are movably sleeved on the fixing frame (4). The two ends of the two sets of springs (7) are fixedly connected to the piston (6) and the fixing frame (4) respectively. An installation ring (8) is rotatably installed inside the bottle cap (1). Multiple sets of annularly distributed closing plates (10) are rotatably installed inside the bottle cap (1). Multiple sets of closing plates (10) are rotatably connected to the bottle cap (1) through an installation shaft (11). Two sets of symmetrically distributed ratchet wheels (13) are sleeved on the left side of the installation shaft (11). Two sets of symmetrically distributed pawls (14) are provided inside the wall of the bottle cap (1).

2. The leak-proof dishwashing detergent bottle cap structure according to claim 1, characterized in that: A branch pipe (3) is provided between the bottle cap (1) and the liquid outlet pipe (2), and the connection end of the branch pipe (3) and the liquid outlet pipe (2) is located on the left side of the retaining ring (5).

3. The leak-proof dishwashing detergent bottle cap structure according to claim 1, characterized in that: Multiple sets of mounting shafts (11) are arranged in a ring around the mounting ring (8). A toothed ring (9) is sleeved on the mounting ring (8). A first gear (12) is sleeved on each of the multiple sets of mounting shafts (11). The multiple sets of first gears (12) are meshed with the toothed ring (9).

4. The leak-proof dishwashing detergent bottle cap structure according to claim 1, characterized in that: The two sets of pawls (14) are respectively set with the two sets of ratchet wheels (13). The two sets of pawls (14) are meshed with the corresponding ratchet wheels (13). The two sets of pawls (14) are rotatably connected to the bottle cap (1) through the rotating rod (15). The two sets of rotating rods (15) are each fitted with a first torsion spring (16). The two ends of the first torsion spring (16) are fixedly connected to the pawl (14) and the bottle cap (1) respectively. The two sets of rotating rods (15) are each fitted with a second gear (17).

5. The leak-proof dishwashing detergent bottle cap structure according to claim 1, characterized in that: Two sets of racks (18) are slidably installed inside the bottle cap (1). The two sets of racks (18) are distributed corresponding to the two sets of rotating rods (15). The two sets of racks (18) are respectively meshed with the corresponding second gears (17).

6. The leak-proof dishwashing detergent bottle cap structure according to claim 1, characterized in that: A slide (19) is slidably installed inside the bottle cap (1). The two ends of the slide (19) are fixedly connected to two sets of racks (18). A positioning block (20) is fixedly installed on the slide (19). A positioning rod (21) corresponding to the positioning block (20) is fixedly installed inside the bottle cap (1). Two sets of symmetrically distributed positioning frames (22) are sleeved on the positioning rod (21). The positioning block (20) can be inserted between the two sets of positioning frames (22).

7. The leak-proof dishwashing detergent bottle cap structure according to claim 6, characterized in that: Two sets of symmetrically distributed second torsion springs (24) are sleeved on the positioning rod (21). The two ends of the second torsion springs (24) are fixedly connected to the positioning frame (22) and the positioning rod (21) respectively. Both sets of positioning frames (22) are sleeved with sleeves (23).

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