Polyethylene bottle and bottle cap sealing connection structure

Abstract

The utility model discloses a kind of polyethylene bottle and bottle cap sealing connection structure, including bottle body, the upper surface of bottle body is cooperatively installed with bottle cap seat, the upper surface of bottle cap seat is equipped with bottle cap, further include connecting mechanism;Connecting mechanism: it includes inner plug, annular sliding slot, limiting protrusion, ball, Y type sealing ring and sealing ring, the upper surface opening of bottle body is slidably connected with inner plug, the upper surface of inner plug is equipped with annular sliding slot, the lower surface of bottle cap seat is equipped with limiting protrusion, the lower end of limiting protrusion can rotate along annular sliding slot and slide up and down in annular sliding slot, the ball is rotatably connected in the evenly distributed slot of the lower end of limiting protrusion inside and outside both sides, and this polyethylene bottle and bottle cap sealing connection structure, sealing connection between polyethylene bottle and bottle cap is completed by connecting mechanism, not only easy to disassemble and assemble, and high sealing, solid medicine in polyethylene bottle is not susceptible to the influence of external environment.

Description

Technical Field

[0001] This utility model relates to the field of bottle body and cap connection technology, specifically a sealing connection structure for a polyethylene bottle and cap. Background Technology

[0002] Polyethylene bottles are hollow containers made of polyethylene (PE) material. Due to their light weight, low density, and ease of transportation and carrying, as well as their good flexibility and acid and alkali resistance, they are widely used in the packaging industry for solid medicines. After filling the polyethylene bottle with medicine, it is usually necessary to close the bottle cap to prevent leakage of solid medicines.

[0003] The existing connection between polyethylene bottles and caps is usually achieved through a threaded sealing structure. The seal is achieved by the engagement of the bottle neck with the cap's threads. When the threads are engaged, the sealing surface inside the cap (such as the top plane) fits tightly against the corresponding plane at the bottle mouth, thus achieving a sealed connection between the polyethylene bottle and the cap.

[0004] The following problems exist: Although the sealing connection between the polyethylene bottle and the cap is achieved solely through a threaded sealing structure, which is convenient to assemble and disassemble and has a certain degree of sealing, the sealing performance is not high, and the medicine inside the polyethylene bottle may still be affected by the external environment. Therefore, we propose a sealing connection structure between the polyethylene bottle and the cap. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a sealing connection structure between a polyethylene bottle and a bottle cap. The sealing connection between the polyethylene bottle and the bottle cap is completed through a connecting mechanism. It is not only easy to assemble and disassemble, but also has high sealing performance. The solid medicine inside the polyethylene bottle is not easily affected by the external environment, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing connection structure between a polyethylene bottle and a bottle cap, comprising a bottle body, a bottle cap seat fitted on the upper surface of the bottle body, a bottle cap provided on the upper surface of the bottle cap seat, and a connecting mechanism.

[0007] The connecting mechanism includes an inner plug, an annular groove, a limiting protrusion, ball bearings, a Y-shaped sealing ring, and a sealing ring. The inner plug is slidably connected to the opening on the upper surface of the bottle body. The upper surface of the inner plug has an annular groove. The lower surface of the bottle cap seat has a limiting protrusion. The lower end of the limiting protrusion can rotate along the annular groove and slide up and down within the annular groove. Ball bearings are rotatably connected to the evenly distributed slots on the inner and outer sides of the lower end of the limiting protrusion. The outer surfaces of the ball bearings are in contact with the inner wall of the annular groove. The upper and lower sides of the outer surface of the inner plug are respectively fixedly fitted with a sealing ring and a Y-shaped sealing ring. The connecting mechanism completes the sealing connection between the polyethylene bottle and the bottle cap. It is not only easy to assemble and disassemble, but also has high sealing performance, and the solid medicine inside the polyethylene bottle is not easily affected by the external environment.

[0008] Furthermore, the connecting mechanism also includes a stepped groove, with a stepped groove provided at the opening of the bottle body, the outer surface of the sealing ring being a stepped surface, the stepped surface of the sealing ring fitting against the upper surface of the stepped groove, the outer surface of the Y-shaped sealing ring fitting against the inner wall of the opening of the bottle body, and the lip of the Y-shaped sealing ring facing downwards, facilitating the sealing of the bottle body and the bottle cap seat.

[0009] Furthermore, the connecting mechanism also includes external threads and internal threads. The outer surface of the bottle opening is provided with external threads, and the inner wall of the bottle cap seat is provided with internal threads. The external threads and internal threads are threaded together to facilitate the connection between the bottle body and the bottle cap seat.

[0010] Furthermore, a sealing ring is fixedly fitted on the raised outer surface of the upper surface of the bottle cap holder, and a medicine outlet is opened in the middle of the raised upper surface of the bottle cap holder. A sealing ring is provided on the inner wall of the medicine outlet to facilitate sealing.

[0011] Furthermore, the outer surface of the bottle cap holder is connected to the outer surface of the bottle cap via a connecting piece provided on the right side. The inner wall of the bottle cap is in contact with the outer surface of the first sealing ring. A sealing head is provided on the lower surface of the bottle cap, and the outer surface of the sealing head is in contact with the inner wall of the second sealing ring, which facilitates sealing of the bottle cap holder and the bottle cap.

[0012] Furthermore, the bottle cap has an elastic buckle on the left side of its outer surface, and the bottle cap seat has a snap fastener on the left side of its outer surface. The lower end of the elastic buckle engages with the snap fastener's opening to secure the bottle cap.

[0013] Furthermore, the outer surface of the bottle cap holder is provided with evenly distributed anti-slip grooves, and the upper surface of the bottle cap is provided with fixing seats on both the front and rear sides. A pull ring is rotatably connected between the two fixing seats to facilitate the operation of the staff.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This polyethylene bottle and cap sealing connection structure has the following advantages:

[0015] Holding the bottle cap holder, insert the inner stopper into the opening of the bottle body, and then rotate the bottle cap holder to screw it on through the threads, fixing the bottle cap holder to the bottle body. During the screwing process, the limiting protrusion rotates and slides in the annular groove. Due to the presence of the ball bearing, the screwing is easier. When the bottle cap holder is rotated to its maximum extent, the lower surface of the bottle cap holder presses against the upper surface of the inner stopper, so that the sealing ring is tightly against the stepped groove to complete the seal. The Y-shaped sealing ring provides auxiliary sealing. It is not only easy to disassemble and assemble, but also has high sealing performance, and the solid medicine in the polyethylene bottle is not easily affected by the external environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is an enlarged structural diagram of point A of this utility model.

[0019] In the diagram: 1 Bottle body, 2 Bottle cap seat, 3 Connecting mechanism, 31 Inner plug, 32 Annular groove, 33 Limiting protrusion, 34 Ball bearing, 35 Y-shaped sealing ring, 36 Sealing ring, 37 Step groove, 38 External thread, 39 Internal thread, 4 Connecting piece, 5 Bottle cap, 6 Sealing ring one, 7 Sealing ring two, 8 Sealing head, 9 Elastic buckle, 10 Buckle, 11 Anti-slip groove, 12 Fixing seat, 13 Pull ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This embodiment provides a technical solution: a sealing connection structure between a polyethylene bottle and a bottle cap, including a bottle body 1, a bottle cap seat 2 fitted on the upper surface of the bottle body 1, a bottle cap 5 on the upper surface of the bottle cap seat 2, and a connecting mechanism 3. A sealing ring 6 is fixedly fitted on the raised outer surface of the upper surface of the bottle cap seat 2. A medicine outlet is opened in the middle of the raised upper surface of the bottle cap seat 2, and a second sealing ring 7 is provided on the inner wall of the medicine outlet. The outer surface of the bottle cap seat 2 and the outer surface of the bottle cap 5 are connected by a connecting piece 4 provided on the right side. The inner wall of the bottle cap 5 and the outer surface of the sealing ring 6 are connected. The bottle cap 5 has a sealing head 8 on its lower surface, and the outer surface of the sealing head 8 fits against the inner wall of the sealing ring 7. The bottle cap 5 has an elastic buckle 9 on its left outer surface. (The bottle body 1, bottle cap seat 2, connecting piece 4, bottle cap 5, and elastic buckle 9 are all made of polyethylene. The connecting piece 4 is also made of polyethylene and has plastic deformation capabilities, allowing the bottle cap 5 to be flipped upwards with the center of the connecting piece 4 as the center.) The bottle cap seat 2 has a buckle 10 on its left outer surface, and the lower end of the elastic buckle 9 engages with the buckle 10. The bottle cap seat 2 has evenly distributed anti-slip grooves 11 on its outer surface. The upper surface of cap 5 has fixing seats 12 on both the front and back sides. A pull ring 13 is rotatably connected between the two fixing seats 12. If a large amount of medicine needs to be removed, rotate the cap seat 2 in the opposite direction and pull it upward to remove the cap seat 2, exposing the opening of the bottle body 1. Due to the presence of the anti-slip groove 11, it is convenient for the staff to rotate the cap seat 2. If a small amount of medicine needs to be removed, press the buckle of the elastic buckle 9 to the right appropriately. The engagement between the elastic buckle 9 and the buckle 10 is released. At this time, the cap 5 can be flipped upward with the middle of the connecting piece 4 as the center, and it can be smoothly removed from the buckle 10. Take out the elastic buckle 9 from the slot, open the bottle cap 5, and after taking out the medicine, flip the bottle cap 5 in the opposite direction. The buckle of the elastic buckle 9 is inserted into the buckle 10. After the buckle is deformed and squeezed, it is fully inserted into the slot in the buckle 10. After it is fully inserted, the buckle returns to its original shape and engages with the buckle 10, so that the bottle cap 5 and the bottle cap seat 2 are fixed together. At this time, the sealing head 8 is inserted into the medicine outlet. Due to the presence of sealing ring 1 6 and sealing ring 2 7, the seal between the bottle cap seat 2 and the bottle cap 5 is completed. When flipping the bottle cap 5 and pulling the bottle cap seat 2, the pull ring 13 on the fixed seat 12 can be used for easy operation.

[0022] Connecting mechanism 3 includes an inner plug 31, an annular groove 32, a limiting protrusion 33, a ball bearing 34, a Y-shaped sealing ring 35, and a sealing ring 36. The inner plug 31 is slidably connected to the opening on the upper surface of the bottle body 1. The upper surface of the inner plug 31 has an annular groove 32. The lower surface of the bottle cap seat 2 has a limiting protrusion 33 (the central axes of the bottle cap seat 2, the inner plug 31, the annular groove 32, and the limiting protrusion 33 all coincide). The lower end of the limiting protrusion 33 can rotate along the annular groove 32 and slide up and down within the annular groove 32. The lower end of the limiting protrusion 33 has openings on both the inner and outer sides. Evenly distributed slots are rotatably connected with ball bearings 34. The outer surfaces of the ball bearings 34 are in contact with the inner wall of the annular groove 32. A sealing ring 36 and a Y-shaped sealing ring 35 are fixedly fitted on the upper and lower sides of the outer surface of the inner plug 31, respectively (both the sealing ring 36 and the Y-shaped sealing ring 35 are made of rubber). The connecting mechanism 3 also includes a stepped groove 37. A stepped groove 37 is provided at the opening of the bottle body 1. The outer surface of the sealing ring 36 is stepped, and the stepped surface of the sealing ring 36 fits against the upper surface of the stepped groove 37. The outer surface of the Y-shaped sealing ring 35 fits against the inner wall of the opening of the bottle body 1. The lip of the sealing ring 35 faces downwards. The connecting mechanism 3 also includes an external thread 38 and an internal thread 39. The outer surface of the opening of the bottle body 1 is provided with an external thread 38, and the inner wall of the bottle cap seat 2 is provided with an internal thread 39. The external thread 38 and the internal thread 39 are threadedly connected. After the solid medicine is loaded into the bottle body 1, hold the bottle cap seat 2 and align the inner plug 31 with the opening of the bottle body 1. Then, insert the inner plug 31 into the opening until the bottle cap seat 2 cannot move downwards. At this time, the external thread 38 and the internal thread 39 are in contact. Then, rotate the bottle cap seat 2, and the connection between the external thread 38 and the internal thread 39 is maintained. The screw thread engagement secures the bottle cap seat 2 to the bottle body 1. During the screwing process of the bottle cap seat 2, the limiting protrusion 33 rotates and slides within the annular groove 32. The presence of the ball bearing 34 reduces friction, making the screwing of the bottle cap seat 2 easier. When the bottle cap seat 2 rotates to its maximum extent, the lower surface of the bottle cap seat 2 presses against the upper surface of the inner plug 31, causing the sealing ring 36 to tightly adhere to the stepped groove 37 to complete the seal between the bottle body 1 and the bottle cap seat 2. The elasticity of the Y-shaped sealing ring 35 itself is used to ensure that the outer surface of the Y-shaped sealing ring 35 adheres tightly to the inner wall of the opening of the bottle body 1 for auxiliary sealing.

[0023] The working principle of the polyethylene bottle and cap sealing connection structure provided by this utility model is as follows: After the solid medicine is loaded into the bottle body 1, hold the cap seat 2 and align the inner plug 31 with the opening of the bottle body 1. Then, insert the inner plug 31 into the opening until the cap seat 2 can no longer move downwards. At this time, the external thread 38 and the internal thread 39 are in contact. Then, rotate the cap seat 2. The cap seat 2 is fixed to the bottle body 1 through the thread engagement between the external thread 38 and the internal thread 39. During the screwing process of the cap seat 2, The limiting protrusion 33 rotates and slides within the annular groove 32. The presence of the ball bearing 34 reduces friction, making the screwing on of the cap seat 2 easier. When the cap seat 2 rotates to its maximum extent, the lower surface of the cap seat 2 presses against the upper surface of the inner plug 31, causing the sealing ring 36 to tightly adhere to the stepped groove 37, thus sealing the bottle body 1 and the cap seat 2. Utilizing the elasticity of the Y-shaped sealing ring 35, the outer surface of the Y-shaped sealing ring 35 adheres tightly to the inner wall of the opening of the bottle body 1 for auxiliary sealing. If removal is required... When dispensing a large quantity of medicine, simply rotate the bottle cap seat 2 in the reverse direction and pull it upwards to remove it, exposing the opening of the bottle body 1. The anti-slip groove 11 facilitates the rotation of the bottle cap seat 2. If a small amount of medicine needs to be dispensed, press the buckle of the elastic buckle 9 slightly to the right to disengage the elastic buckle 9 from the latch 10. Then, using the center of the connecting piece 4 as the center, flip the bottle cap 5 upwards to easily remove the elastic buckle 9 from the latch 10. After opening the bottle cap 5 and dispensing the medicine, the process is complete. When the bottle cap 5 is flipped in the reverse direction, the buckle of the elastic buckle 9 is inserted into the buckle 10. After the buckle is deformed and compressed, it is fully inserted into the slot of the buckle 10. After it is fully inserted, the buckle returns to its original shape and engages with the buckle 10, thus fixing the bottle cap 5 and the bottle cap seat 2 together. At this time, the sealing head 8 is inserted into the medicine outlet. Due to the presence of sealing ring 1 6 and sealing ring 2 7, the seal between the bottle cap seat 2 and the bottle cap 5 is completed. When flipping the bottle cap 5 and pulling the bottle cap seat 2, the pull ring 13 on the fixing seat 12 can be used for easy operation.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A polyethylene bottle and bottle cap sealing connection structure, comprising a bottle body (1), a bottle cap seat (2) is fitted and installed on the upper surface of the bottle body (1), and a bottle cap (5) is arranged on the upper surface of the bottle cap seat (2), characterized in that: It also includes a connecting mechanism (3); The connecting mechanism (3) includes an inner plug (31), an annular groove (32), a limiting protrusion (33), a ball (34), a Y-shaped sealing ring (35), and a sealing ring (36). The inner plug (31) is slidably connected to the opening on the upper surface of the bottle body (1). The annular groove (32) is provided on the upper surface of the inner plug (31). The limiting protrusion (33) is provided on the lower surface of the bottle cap seat (2). The lower end of the limiting protrusion (33) can rotate along the annular groove (32) and slide up and down in the annular groove (32). The ball (34) is rotatably connected to the evenly distributed slots on the inner and outer sides of the lower end of the limiting protrusion (33). The outer surface of the ball (34) is in contact with the inner wall of the annular groove (32). The sealing ring (36) and the Y-shaped sealing ring (35) are fixedly sleeved on the upper and lower sides of the outer surface of the inner plug (31).

2. The polyethylene bottle and cap sealing connection structure according to claim 1, characterized in that: The connecting mechanism (3) also includes a stepped groove (37). The stepped groove (37) is provided at the opening of the bottle body (1). The outer surface of the sealing ring (36) is a stepped surface. The stepped surface of the sealing ring (36) is in contact with the upper surface of the stepped groove (37). The outer surface of the Y-shaped sealing ring (35) is in contact with the inner wall of the opening of the bottle body (1). The lip of the Y-shaped sealing ring (35) faces downward.

3. The polyethylene bottle and cap sealing connection structure according to claim 1, characterized in that: The connecting mechanism (3) also includes an external thread (38) and an internal thread (39). The outer surface of the opening of the bottle body (1) is provided with an external thread (38), and the inner wall of the bottle cap seat (2) is provided with an internal thread (39). The external thread (38) and the internal thread (39) are threaded together.

4. The polyethylene bottle and cap sealing connection structure according to claim 1, characterized in that: The upper surface of the bottle cap holder (2) is fixedly fitted with a sealing ring one (6), and a medicine outlet is opened in the middle of the upper surface of the bottle cap holder (2), and a sealing ring two (7) is provided on the inner wall of the medicine outlet.

5. The polyethylene bottle and cap sealed connection structure according to claim 4, characterized in that: The outer surface of the bottle cap seat (2) is connected to the outer surface of the bottle cap (5) by a connecting piece (4) provided on the right side. The inner wall of the bottle cap (5) is in contact with the outer surface of the sealing ring one (6). The lower surface of the bottle cap (5) is provided with a sealing head (8), and the outer surface of the sealing head (8) is in contact with the inner wall of the sealing ring two (7).

6. The polyethylene bottle and cap sealed connection structure according to claim 1, characterized in that: The bottle cap (5) has an elastic buckle (9) on the left side of its outer surface, and the bottle cap seat (2) has a buckle (10) on the left side of its outer surface. The lower end of the elastic buckle (9) is engaged with the buckle (10) inside the buckle opening.

7. The polyethylene bottle and cap sealed connection structure according to claim 1, characterized in that: The outer surface of the bottle cap seat (2) is provided with uniformly distributed anti-slip grooves (11), and the upper surface of the bottle cap (5) is provided with fixing seats (12) on both the front and rear sides. A pull ring (13) is rotatably connected between the two fixing seats (12).

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