A double-layer screw-off detachable bottle cap structure

Abstract

The utility model discloses a double -deck spin open separation formula bottle lid structure, specifically at related to bottle lid structure field, including the outer cover, is equipped with the anti -skid groove of multiple circumferential array on the outer cover outer wall, is equipped with the first protruding of outer cover inner wall top, is equipped with the internal thread of outer cover inner wall bottom, is equipped with the inner cover between internal thread and the first protruding, the inner cover and outer cover swing joint, is equipped with the first recess of inner cover top, the first recess and the first protruding swing joint, the fixed connection of multichannel top cover has in inner cover top, the fixed sleeve of multichannel top cover center fixed connection, the rotating connection of fixed sleeve center has the adjusting assembly, and the adjusting assembly is used for realizing the channel change of multichannel top cover. The utility model discloses through the linkage mechanism of knob and rotating plate, has realized the flexible adjustment of multichannel top cover, can choose the different flow mode such as full -open, big hole or small hole according to the demand, has completely got rid of the traditional bottle lid and needs the spare or the trouble of the aid of auxiliary tool, brings more convenient, accurate use experience for the user.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap structure technology, and more specifically, to a double-layer screw-on detachable bottle cap structure. Background Technology

[0002] Bottle caps are common components for sealing bottle openings. They are usually made of plastic, metal, or composite materials. Their core function is to ensure the safety and hygiene of the contents. In daily life, bottle caps can prevent liquid leakage and block dust and bacteria from entering. Some special designs also have anti-counterfeiting functions or convenient opening methods. In fact, the small bottle cap plays a dual role as a safety guardian and a practical item in life.

[0003] Traditional detachable bottle caps have a limited function, only allowing for basic opening and closing operations. They cannot meet the precise control requirements of liquids with different viscosities. For high-viscosity honey or syrups, ordinary caps are prone to liquid sticking to the bottle walls, uneven flow, or sudden spillage when pouring, leading to inconvenience and waste. For medicines or concentrated liquids requiring precise dosage, traditional designs lack a controllable flow regulation mechanism. Users often struggle to master the appropriate pouring angle and force, easily resulting in overuse or underdosing. This reduces efficiency and increases operational complexity. These functional limitations not only affect user experience but may also lead to product spoilage, contamination, or safety hazards due to improper operation, especially in the medical and food industries where hygiene and precision requirements are high.

[0004] In summary, to meet the control requirements of various liquids, it is necessary to address the problems of traditional detachable bottle cap structures having a single function, reducing efficiency, increasing operational complexity, and even leading to product deterioration, contamination, or safety hazards. The goal is to enable detachable bottle caps to have multiple channels to meet the different flow rate requirements of different liquids. Utility Model Content

[0005] The present invention provides a double-layer screw-on detachable bottle cap structure, which aims to solve the problem that traditional detachable bottle cap structures have limited functionality, reduce efficiency, increase operational complexity, and may even lead to product deterioration, contamination, or safety hazards.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-layer screw-on detachable bottle cap structure, including an outer cap, with multiple circumferentially arrayed anti-slip grooves on the outer wall of the outer cap, a first protrusion on the top of the inner wall of the outer cap, an internal thread on the bottom of the inner wall of the outer cap, an inner cap between the internal thread and the first protrusion, the inner cap and the outer cap being movably connected, a first groove on the top of the inner cap, the first groove and the first protrusion being movably connected, a multi-channel top cap being fixedly connected to the top of the inner cap, a fixed sleeve being fixedly connected to the center of the multi-channel top cap, and an adjustment component being rotatably connected to the center of the fixed sleeve, the adjustment component being used to change the channels of the multi-channel top cap.

[0007] In a preferred embodiment, the adjustment assembly includes a knob rotatably connected to the center of the fixed sleeve and a rotating plate fixedly connected to the bottom of the knob. The rotating plate and the inner cover are rotatably connected, and a fan-shaped through hole is provided on the rotating plate.

[0008] In a preferred embodiment, a limit pin is fixedly connected to the bottom of the rotating plate, and a ratchet is rotatably connected to the limit pin.

[0009] In a preferred embodiment, a ratchet is provided below the turntable, and the ratchet is fixedly connected to the inner wall of the inner cover, with the ratchet and pawl engaging internally.

[0010] In a preferred embodiment, a spring is fixedly connected to the underside of the turntable, and the other end of the spring is fixedly connected to a pawl.

[0011] In a preferred embodiment, a sealing lip is provided below the ratchet, and the sealing lip is fixedly connected to the inner wall of the inner cover. A plurality of second grooves are provided at the bottom of the inner wall of the inner cover.

[0012] In a preferred embodiment, a plurality of positioning beads are fixedly connected to the inner wall of the inner cover, and the positioning beads are movably connected to the rotating plate.

[0013] In a preferred embodiment, a connecting bridge is fixedly connected to the bottom of the outer cover, and a theft detection ring is fixedly connected to the other end of the connecting bridge. The inner wall of the theft detection ring is provided with a plurality of second protrusions.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention achieves flexible adjustment of the multi-channel cap through the linkage mechanism of the knob and the rotating plate. Different flow modes such as full flow, large hole or small hole can be selected according to actual needs. This design significantly improves the applicability of the bottle cap. Whether it is liquid with different fluidity or fine powder, the ideal flow effect can be obtained through simple rotation operation. It completely eliminates the trouble of replacing parts or using auxiliary tools for traditional bottle caps, and brings users a more convenient and precise user experience.

[0016] This invention utilizes the internal meshing structure of the pawl and ratchet to create a reliable one-way self-locking function. This not only prevents potential safety hazards caused by children opening the mechanism at will, but also ensures the stability of the adjustment components. Combined with the positioning bead and the rotating plate slot, it avoids accidental sliding or resetting during use. This design not only meets the requirements of international safety standards, but also improves the overall accuracy and reliability of use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

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

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer cover of this utility model.

[0020] Figure 4 This is a schematic diagram of the multi-channel top cover structure of this utility model.

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

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the inner cover of this utility model.

[0023] Figure 7 This is a schematic diagram of another embodiment of the connecting bridge of this utility model.

[0024] The attached diagram is labeled as follows: 1. Outer cover; 101. Anti-slip groove; 102. First protrusion; 103. Internal thread; 2. Inner cover; 201. First groove; 202. Second groove; 3. Multi-channel top cover; 4. Fixing sleeve; 501. Knob; 502. Rotating plate; 6. Limiting pin; 7. Pawl; 8. Ratchet; 9. Spring; 10. Sealing lip; 11. Positioning bead; 12. Connecting bridge; 13. Theft detection ring; 1301. Second protrusion. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Refer to the instruction manual appendix Figures 1 to 6A double-layer screw-on detachable bottle cap structure includes an outer cap 1. The outer wall of the outer cap 1 has multiple anti-slip grooves 101 arranged in a circular array. The top of the inner wall of the outer cap 1 has a first protrusion 102, and the bottom of the inner wall of the outer cap 1 has an internal thread 103. An inner cap 2 is provided between the internal thread 103 and the first protrusion 102. The inner cap 2 and the outer cap 1 are movably connected. The top of the inner cap 2 has a first groove 201, and the first groove 201 and the first protrusion 102 are movably connected. A multi-channel top cap 3 is fixedly connected to the top of the inner cap 2. A fixing sleeve 4 is fixedly connected to the center of the multi-channel top cap 3. An adjustment component is rotatably connected to the center of the fixing sleeve 4. The adjustment component is used to change the channels of the multi-channel top cap 3.

[0027] It should be noted that the internal thread 103 on the inner wall of the outer cover 1 is used to achieve threaded connection with the external thread of the bottle mouth, and the internal thread 103 is adapted to the size of the external thread of the bottle to be connected. The sizes of the first protrusion 102 and the first groove 201 are adapted so that when the outer cover 1 is tightened, it can achieve a seal on the inner cover 2. The multi-channel top cover 3 is provided with three fan-shaped channels, which are fully open, large hole open and small hole open, respectively, and the channels can be freely changed according to the state of the liquid in the bottle.

[0028] Another embodiment of the bottle cap structure replaces the single internal thread 103 on the inner wall of the outer cap 1 with a double-ended thread. The double-ended thread is used to connect with the bottle mouth, which reduces the number of tightening turns. At the same time, the double threads bear force at two points, the pressure is evenly distributed, reducing deviation and leakage, and avoiding misalignment between the outer cap 1 and the bottle mouth when the outer cap 1 is screwed on for the second time. It is more suitable for bottle caps that are frequently opened and closed.

[0029] Refer to the instruction manual appendix Figure 2 The adjustment assembly includes a knob 501 rotatably connected to the center of the fixed sleeve 4 and a rotating plate 502 fixedly connected to the bottom of the knob 501. The rotating plate 502 is rotatably connected to the inner cover 2, and a fan-shaped through hole is provided on the rotating plate 502.

[0030] It should be noted that the knob 501 has a protrusion on the top for easy gripping, which makes it easier for the user to apply force and drive the rotating plate 502 below to rotate. The fan-shaped through hole on the rotating plate 502 is slightly larger than the size of the multi-channel top cover 3.

[0031] Refer to the instruction manual appendix Figure 5 The bottom of the rotating plate 502 is fixedly connected to a limit pin 6, and a ratchet 7 is rotatably connected to the limit pin 6.

[0032] It should be noted that the pawl 7 is made of rigid material and has strong impact resistance.

[0033] Refer to the instruction manual appendix Figure 5 A ratchet 8 is provided below the rotating plate 502. The ratchet 8 is fixedly connected to the inner wall of the inner cover 2, and the ratchet 8 and the pawl 7 are internally engaged.

[0034] It should be noted that the teeth of the ratchet 8 are asymmetrical arc teeth, which cooperate with the pawl 7. When rotating in the forward direction, the pawl 7 slides over the back of the teeth of the ratchet 8. When locking in the reverse direction, the pawl tip contacts the tooth surface, achieving one-way locking.

[0035] Refer to the instruction manual appendix Figure 5 A spring 9 is fixedly connected to the bottom of the rotating plate 502, and the other end of the spring 9 is fixedly connected to the pawl 7.

[0036] It should be noted that the spring 9 is fixed to the rotating plate 502 by riveting or screws to ensure rigid constraint at the root. The connection end with the pawl 7 can be designed as a hinge pin or laser welding. The elastic deformation of the spring 9 provides preload force to drive the pawl 7 to return to its original position quickly.

[0037] Refer to the instruction manual appendix Figure 6 A sealing lip 10 is provided below the ratchet 8. The sealing lip 10 is fixedly connected to the inner wall of the inner cover 2. Multiple second grooves 202 are provided at the bottom of the inner wall of the inner cover 2.

[0038] It should be noted that the sealing lip 10 is made of elastic material and forms a liquid-tight contact with the inner edge of the bottle mouth. The second groove 202 is used to cooperate with the protrusion of the bottle mouth to achieve a good seal for the bottle mouth. At the same time, the inner cap 2 is always installed on the bottle mouth.

[0039] Refer to the instruction manual appendix Figure 6 Multiple positioning beads 11 are fixedly connected to the inner wall of the inner cover 2, and the positioning beads 11 are movably connected to the rotating plate 502.

[0040] It should be noted that the fan-shaped through hole of the rotating plate 502 has two slots on both sides, and the slot openings face the inner cover 2. When the rotating plate 502 is rotated to the designated position, the positioning bead 11 pops out and is inserted into the two slots of the rotating plate 502, making a sound to indicate to the user that the through hole has been aligned with a channel.

[0041] Refer to the instruction manual appendix Figure 3 The bottom of the outer cover 1 is fixedly connected to a connecting bridge 12, and the other end of the connecting bridge 12 is fixedly connected to a theft detection ring 13. The inner wall of the theft detection ring 13 is provided with multiple second protrusions 1301.

[0042] It should be noted that the anti-counterfeiting ring 13 is installed on the bottle mouth through the second protrusion 1301. When the outer cap 1 is opened for the first time, the connecting bridge 12 breaks and becomes serrated, which has an anti-counterfeiting function.

[0043] Based on another embodiment of the connecting bridge 12, please refer to Figure 7The circumferential radial structure of the connecting bridge 12 can be improved into a spiral involute structure, which mimics the normal opening feel. At the same time, it can only break after reaching a critical angle, avoiding stress concentration at the root of the radial structure connecting bridge 12 and simultaneous breakage. This allows the fracture of the improved spiral involute structure connecting bridge 12 to propagate sequentially from the thinnest part, avoiding impact fracture.

[0044] Working principle: The second groove 202 of the inner cover 2 is installed on the protrusion on the outer wall of the bottle mouth. The sealing lip 10 seals along the inner edge of the bottle mouth. At the same time, the second protrusion 1301 of the thief detection ring 13 is used to install the thief detection ring 13 at the bottom of the bottle mouth. The outer cover 1 is threaded to the bottle mouth through the internal thread 103. When opening for the first time, after rotating the outer cover 1 to a certain angle, the connecting bridge 12 breaks, and the outer cover 1 can be unscrewed, revealing the multi-channel top cover 3. By turning the knob 501, the rotating plate 502 is driven to rotate at the bottom of the multi-channel top cover 3. At the same time, the pawl 7 slides over the back of the teeth of the ratchet 8 until the positioning bead 11 is engaged in the slot on the rotating plate 502, making a sound, indicating that the rotating plate 502 has rotated to the corresponding position of a channel.

[0045] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A double-layer twist-off, separable bottle cap structure, characterized by: The device includes an outer cover (1), on which multiple anti-slip grooves (101) are formed in a circular array on the outer wall. The top of the inner wall of the outer cover (1) is provided with a first protrusion (102), and the bottom of the inner wall of the outer cover (1) is provided with an internal thread (103). An inner cover (2) is provided between the internal thread (103) and the first protrusion (102). The inner cover (2) and the outer cover (1) are movably connected. The top of the inner cover (2) is provided with a first groove (201), and the first groove (201) and the first protrusion (102) are movably connected. The top of the inner cover (2) is fixedly connected with a multi-channel top cover (3). A fixed sleeve (4) is fixedly connected to the center of the multi-channel top cover (3). An adjustment component is rotatably connected to the center of the fixed sleeve (4). The adjustment component is used to realize the channel change of the multi-channel top cover (3).

2. The double-layered rotating and separating type bottle cap structure according to claim 1, characterized in that: The adjustment assembly includes a knob (501) rotatably connected to the center of the fixed sleeve (4) and a rotating plate (502) fixedly connected to the bottom of the knob (501). The rotating plate (502) is rotatably connected to the inner cover (2), and a fan-shaped through hole is provided on the rotating plate (502).

3. The double-layered, twist-to-open, separable bottle cap structure according to claim 2, characterized in that: The bottom of the rotating plate (502) is fixedly connected to a limit pin (6), and a pawl (7) is rotatably connected to the limit pin (6).

4. The double-layer screw-on detachable bottle cap structure according to claim 3, characterized in that: A ratchet (8) is provided below the rotating plate (502). The ratchet (8) is fixedly connected to the inner wall of the inner cover (2). The ratchet (8) and the pawl (7) are internally engaged.

5. The double-layer screw-on detachable bottle cap structure according to claim 4, characterized in that: A spring (9) is fixedly connected to the bottom of the rotating plate (502), and the other end of the spring (9) is fixedly connected to the pawl (7).

6. The double-layer screw-on detachable bottle cap structure according to claim 4, characterized in that: A sealing lip (10) is provided below the ratchet (8). The sealing lip (10) is fixedly connected to the inner wall of the inner cover (2). Multiple second grooves (202) are provided at the bottom of the inner wall of the inner cover (2).

7. The double-layer screw-on detachable bottle cap structure according to claim 4, characterized in that: Multiple positioning beads (11) are fixedly connected to the inner wall of the inner cover (2), and the positioning beads (11) are movably connected to the rotating plate (502).

8. The double-layer screw-on detachable bottle cap structure according to claim 1, characterized in that: The bottom of the outer cover (1) is fixedly connected to a connecting bridge (12), and the other end of the connecting bridge (12) is fixedly connected to a theft detection ring (13). The inner wall of the theft detection ring (13) is provided with multiple second protrusions (1301).

Images