Composite film packaging bag outlet structure with integrated air guide

Abstract

The utility model relates to composite film packing bag technical field, especially is composite film packing bag outlet structure of integrated flow guide nozzle, including packing bag, the top of packing bag is installed with flow guide nozzle, the outer wall fixedly connected with base of flow guide nozzle, the outer wall of flow guide nozzle is connected with the thread cap of screw thread, the outer wall of thread cap is provided with sliding ring, the top of flow guide nozzle is provided with the slot, the inner wall of slot is provided with the clamping groove, the outer wall of thread cap is provided with the rotating cap of sleeve, the inner wall of rotating cap is provided with the sliding slot, the inside of sliding slot is provided with the sliding block, the inner wall top of rotating cap is fixedly connected with spring, the bottom of spring is fixedly connected with the pressing plate, the top of flow guide nozzle is provided with the pressing plate groove, the bottom of pressing plate and the inner wall bottom of pressing plate groove are in close contact, the inner wall top of rotating cap is fixedly connected with annular plugboard, the bottom of annular plugboard is provided with the clamping strip. The utility model effectively prevents children from opening the packing accidentally due to twisting the rotating cap at will, and avoids the waste and pollution caused by the leakage of content.

Description

Technical Field

[0001] This utility model relates to the field of composite film packaging bags, and in particular to the outlet structure of composite film packaging bags with integrated flow guide nozzles. Background Technology

[0002] Composite film packaging bags are widely used in the packaging of liquid or semi-fluid products in industries such as food, daily chemicals, and pharmaceuticals. To facilitate pouring and flow control, a flow guide nozzle is often installed at the outlet of the packaging bag. The flow guide nozzle effectively guides the liquid flow, preventing splashing and waste, and improving ease of use and hygiene. It is especially suitable for applications requiring precise dosage control, such as the packaging of products like juice, detergents, and edible oils.

[0003] Existing packaging bags with dispensing nozzles may be damaged when the product is stored in a home environment. Children may be curious and twist or open the sealing structure of the dispensing nozzle, resulting in the packaging bag not being properly sealed and causing internal liquid leakage. This not only causes product waste and environmental pollution, but may also pose safety hazards. Utility Model Content

[0004] In view of this, the present invention provides an outlet structure for a composite film packaging bag with an integrated flow guide nozzle. The main technical problem to be solved is that when the product is stored in a home environment, children may twist or open the sealing structure of the flow guide nozzle part out of curiosity, resulting in the packaging bag not being properly sealed, which in turn causes internal liquid leakage. This not only causes product waste and environmental pollution, but may also pose safety hazards.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an outlet structure for a composite film packaging bag with an integrated guide nozzle, comprising a packaging bag, a guide nozzle installed on the top of the packaging bag, a base fixedly connected to the outer wall of the guide nozzle, a threaded cap threadedly connected to the outer wall of the guide nozzle, a slip ring provided on the outer wall of the threaded cap, a slot provided on the top of the guide nozzle, a groove provided on the inner wall of the slot, and multiple grooves provided; a rotating cap fitted on the outer wall of the threaded cap, a sliding groove provided on the inner wall of the rotating cap, and multiple sliding grooves provided; a slider provided inside the sliding groove; a spring fixedly connected to the top of the inner wall of the rotating cap, a pressure plate fixedly connected to the bottom of the spring, a pressure plate groove provided on the top of the guide nozzle, the bottom of the pressure plate fitting against the bottom of the inner wall of the pressure plate groove, an annular insert fixedly connected to the top of the inner wall of the rotating cap, and multiple locking strips provided at the bottom of the annular insert.

[0006] By adopting the above technical solution, a safe sealing effect is achieved to prevent children from accidentally opening the door, while ensuring the convenience of normal opening.

[0007] As a further description of the above technical solution:

[0008] The slider has an arc-shaped groove on the outer wall of the guide nozzle, and the slip ring is engaged in the arc-shaped groove on the outer wall of multiple clips.

[0009] By adopting the above technical solution, reliable linkage between the rotating cap and the threaded cap, which can both slide axially and transmit force in the circumferential direction, is ensured.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the slider is provided with a limit strip, and there are two limit strips. Limit grooves are opened on both sides of the inner side of the slide groove, and the limit strip is located inside the corresponding limit groove.

[0012] By adopting the above technical solution, the movement trajectory of the slider is effectively limited, preventing the parts from detaching and ensuring the stability of operation.

[0013] As a further description of the above technical solution:

[0014] The bottom of the rotating cap is provided with a positioning groove, and the top of the base is provided with a positioning plate, the upper end of which is located inside the positioning groove.

[0015] By adopting the above technical solution, circumferential positioning between the rotating cap and the base is achieved, ensuring the accuracy of rotational alignment.

[0016] As a further description of the above technical solution:

[0017] The slot is in the shape of a semi-circle, and the lower arc-shaped surface of the annular insert plate is consistent with the shape of the inner wall of the slot.

[0018] By adopting the above technical solution, the annular insert plate and the slot can fit together fully, which enhances the reliability of the locking and sealing.

[0019] As a further description of the above technical solution:

[0020] A sealing gasket is provided at the top of the flow guide nozzle, and the sealing gasket is located in the middle between the top of the flow guide nozzle and the top of the inner wall of the threaded cap.

[0021] By adopting the above technical solution, the sealing performance of the top of the guide nozzle is improved, effectively preventing liquid leakage from the threaded connection.

[0022] By employing the above technical solution, the composite film packaging bag outlet structure with integrated flow guide nozzle of this utility model has at least the following beneficial effects:

[0023] 1. Compared with existing technologies, the outlet structure of this composite film packaging bag with integrated flow guide nozzle achieves both convenient operation and leak-proof safety through the inclusion of components such as a rotating cap, annular insert plate, locking strips, slots, grooves, and springs. Specifically, by setting up annular insert plate and multiple locking strips at the bottom, which cooperate with the annular slot and internal groove at the top of the flow guide nozzle, the user must first press down on the rotating cap to overcome the spring resistance, forcing the locking strips to fully embed into the groove to form a mechanical interlock. Only then can the torque be transmitted to the threaded cap by rotating the rotating cap, causing it to unscrew. This operating mechanism effectively prevents children from accidentally opening the packaging by randomly twisting the rotating cap, avoiding waste and pollution caused by leakage of contents. At the same time, the continuous rebound force provided by the spring not only ensures that the rotating cap automatically resets and disengages when not in operation, keeping the packaging in a normally closed and sealed state, but also simplifies the closing steps after use. The user only needs to release the press to automatically lock it, significantly improving the product's safety and ease of use. Attached Figure Description

[0024] Figure 1 This is a first-view overall structural diagram of the composite film packaging bag outlet structure with integrated flow guide nozzle proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the internal structure of the composite film packaging bag outlet structure with integrated flow guide nozzle proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the internal components of the rotating cap of the composite film packaging bag outlet structure with integrated guide nozzle proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the groove and limiting mechanism of the composite film packaging bag outlet structure with integrated guide nozzle proposed in this utility model.

[0028] Figure 5 A schematic diagram of the threaded cap of the composite film packaging bag outlet structure with integrated flow guide nozzle proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the guide nozzle and positioning plate of the composite film packaging bag with integrated guide nozzle proposed in this utility model;

[0030] Figure 7 This is a schematic diagram of the annular insert plate and locking strip of the composite film packaging bag outlet structure with integrated flow guide nozzle proposed in this utility model.

[0031] Figure 8 This is a schematic diagram of the slider and limiting strip of the composite film packaging bag outlet structure with integrated guide nozzle proposed in this utility model.

[0032] Legend:

[0033] 1. Packaging bag; 2. Drain nozzle; 3. Base; 4. Threaded cap; 5. Slip ring; 6. Slot; 7. Card slot; 8. Rotating cap; 9. Slide groove; 10. Slider; 11. Spring; 12. Pressure plate; 13. Pressure plate groove; 14. Annular insert plate; 15. Locking strip; 16. Limiting strip; 17. Limiting groove; 18. Positioning groove; 19. Positioning plate. Detailed Implementation

[0034] Reference Figures 1-8 The present invention provides an integrated flow guide nozzle for a composite film packaging bag outlet structure, comprising a packaging bag 1, a flow guide nozzle 2 mounted on the top of the packaging bag 1, a base 3 fixedly connected to the outer wall of the flow guide nozzle 2, a threaded cap 4 threadedly connected to the outer wall of the flow guide nozzle 2, a slip ring 5 provided on the outer wall of the threaded cap 4, a slot 6 opened on the top of the flow guide nozzle 2, a groove 7 opened on the inner wall of the slot 6, and multiple grooves 7, a rotating cap 8 sleeved on the outer wall of the threaded cap 4, a sliding groove 9 opened on the inner wall of the rotating cap 8, and multiple sliding grooves 9, a slider 10 provided inside the sliding groove 9, the slider 10 facing the flow guide nozzle. The outer wall of the nozzle 2 has an arc-shaped groove. The top of the inner wall of the rotating cap 8 is fixedly connected to a spring 11. The bottom of the spring 11 is fixedly connected to a pressure plate 12. The top of the guide nozzle 2 has a pressure plate groove 13. The bottom of the pressure plate 12 fits against the bottom of the inner wall of the pressure plate groove 13. The top of the inner wall of the rotating cap 8 is fixedly connected to an annular insert plate 14. The slot 6 is in the shape of an annular semicircle. The lower arc surface of the annular insert plate 14 is consistent with the shape of the inner wall of the slot 6. The bottom of the annular insert plate 14 is provided with a retaining strip 15. There are multiple retaining strips 15. The slip ring 5 is engaged in the arc-shaped grooves opened on the outer wall of the multiple retaining strips 15.

[0035] When normally closed, the rotating cap 8 is in the upper position under the elastic force of the spring 11, and its internal annular insert 14 is not inserted into the slot 6 at the top of the guide nozzle 2, and the two are in a separated state. At this time, if the rotating cap 8 is rotated directly by hand, since the rotating cap 8 and the threaded cap 4 are only connected by the sliding fit of the slider 10 and the slip ring 5, the torque cannot be effectively transmitted. Therefore, the rotating cap 8 will spin freely and cannot drive the threaded cap 4 to rotate. The outlet of the guide nozzle 2 remains sealed and closed, thus achieving the initial function of preventing accidental opening.

[0036] When the packaging bag needs to be opened, the user must first press down on the rotating cap 8. The pressing action overcomes the elastic force of the spring 11, causing the rotating cap 8 to move downward as a whole. This process causes the annular insert plate 14, which is fixed to the top of its inner wall, to be inserted into the slot 6 at the top of the guide nozzle 2. At the same time, the multiple locking strips 15 at the bottom of the annular insert plate 14 are also embedded into the multiple slots 7 on the inner wall of the slot 6, forming a tight locking connection.

[0037] After pressing down and engaging, the rotating cap 8 and the guide nozzle 2 are locked together by the engagement of the locking strip 15 and the locking groove 7. At this time, rotating the rotating cap 8 will effectively transmit the torque to the guide nozzle 2 through the annular insert plate 14. Since the outer wall of the guide nozzle 2 is threadedly connected to the threaded cap 4, the rotating guide nozzle 2 will drive the threaded cap 4 to rotate, causing it to spiral upward along the thread of the outer wall of the guide nozzle 2, thereby opening the outlet of the guide nozzle 2 and allowing the liquid in the packaging bag to be poured out smoothly.

[0038] After use, place the threaded cap 4 on top of the flow guide nozzle 2, then press down on the rotating cap 8, causing the threaded cap 4 to rotate on the flow guide nozzle 2, ultimately sealing the top of the flow guide nozzle 2. Then release the pressure on the rotating cap 8; the rebound force of the spring 11 will push the rotating cap 8 upwards to reset, causing the annular insert plate 14 and the retaining strip 15 to disengage from the slot 6 and the retaining groove 7, returning to the separated state. The rotating cap 8 is then decoupled from the flow guide nozzle 2, returning to the idle rotation mode, thus achieving the functions of sealing and preventing child-proof opening.

[0039] The outer wall of the slider 10 is provided with a limit strip 16, and there are two limit strips 16. Limit grooves 17 are opened on both sides of the inner side of the slide groove 9. The limit strip 16 is located inside the corresponding limit groove 17, which improves the stability of the slider 10 moving in the slide groove 9.

[0040] The bottom of the rotating cap 8 is provided with a positioning groove 18, and the top of the base 3 is provided with a positioning plate 19. The upper end of the positioning plate 19 is located inside the positioning groove 18 to improve the stability of the rotating cap 8 when it is rotated.

[0041] A sealing gasket is provided at the top of the flow guide nozzle 2. The sealing gasket is located in the middle between the top of the flow guide nozzle 2 and the top of the inner wall of the threaded cap 4. After the threaded cap 4 and the flow guide nozzle 2 are pressed together, the sealing performance of the packaging bag 1 is improved.

[0042] Working principle: When normally closed, the rotating cap 8 is in the upper position under the elastic force of the spring 11, and its internal annular insert 14 is not inserted into the slot 6 at the top of the guide nozzle 2, and the two are in a separated state. At this time, if the rotating cap 8 is rotated directly by hand, since the rotating cap 8 and the threaded cap 4 are only connected by the sliding fit of the slider 10 and the slip ring 5, the torque cannot be effectively transmitted. Therefore, the rotating cap 8 will spin freely and cannot drive the threaded cap 4 to rotate. The outlet of the guide nozzle 2 remains sealed and closed, thus achieving the initial function of preventing accidental opening.

[0043] When the packaging bag needs to be opened, the user must first press down on the rotating cap 8. The pressing action overcomes the elastic force of the spring 11, causing the rotating cap 8 to move downward as a whole. This process causes the annular insert plate 14, which is fixed to the top of its inner wall, to be inserted into the slot 6 at the top of the guide nozzle 2. At the same time, the multiple locking strips 15 at the bottom of the annular insert plate 14 are also embedded into the multiple slots 7 on the inner wall of the slot 6, forming a tight locking connection.

[0044] After pressing down and engaging, the rotating cap 8 and the guide nozzle 2 are locked together by the engagement of the locking strip 15 and the locking groove 7. At this time, rotating the rotating cap 8 will effectively transmit the torque to the guide nozzle 2 through the annular insert plate 14. Since the outer wall of the guide nozzle 2 is threadedly connected to the threaded cap 4, the rotating guide nozzle 2 will drive the threaded cap 4 to rotate, causing it to spiral upward along the thread of the outer wall of the guide nozzle 2, thereby opening the outlet of the guide nozzle 2 and allowing the liquid in the packaging bag to be poured out smoothly.

[0045] After use, place the threaded cap 4 on top of the flow guide nozzle 2, then press down on the rotating cap 8, causing the threaded cap 4 to rotate on the flow guide nozzle 2, ultimately sealing the top of the flow guide nozzle 2. Then release the pressure on the rotating cap 8; the rebound force of the spring 11 will push the rotating cap 8 upwards to reset, causing the annular insert plate 14 and the retaining strip 15 to disengage from the slot 6 and the retaining groove 7, returning to the separated state. The rotating cap 8 is then decoupled from the flow guide nozzle 2, returning to the idle rotation mode, thus achieving the functions of sealing and preventing child-proof opening.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An outlet structure for a composite film packaging bag with an integrated flow guide nozzle, comprising a packaging bag (1), characterized in that: The top of the packaging bag (1) is fitted with a flow guide nozzle (2), and a base (3) is fixedly connected to the outer wall of the flow guide nozzle (2). A threaded cap (4) is threaded to the outer wall of the flow guide nozzle (2), and a slip ring (5) is provided on the outer wall of the threaded cap (4). A slot (6) is provided on the top of the flow guide nozzle (2), and a groove (7) is provided on the inner wall of the slot (6). There are multiple grooves (7). A rotating cap (8) is fitted on the outer wall of the threaded cap (4), and a sliding groove (9) is provided on the inner wall of the rotating cap (8). There are multiple sliding grooves (9). There are multiple of them. The sliding groove (9) is provided with a slider (10). The top of the inner wall of the rotating cap (8) is fixedly connected with a spring (11). The bottom of the spring (11) is fixedly connected with a pressure plate (12). The top of the guide nozzle (2) is provided with a pressure plate groove (13). The bottom of the pressure plate (12) is in contact with the bottom of the inner wall of the pressure plate groove (13). The top of the inner wall of the rotating cap (8) is fixedly connected with an annular insert plate (14). The bottom of the annular insert plate (14) is provided with a retaining strip (15), and there are multiple retaining strips (15).

2. The composite film packaging bag outlet structure with integrated flow guide nozzle according to claim 1, characterized in that: The slider (10) has an arc-shaped groove on the outer wall of the guide nozzle (2), and the slip ring (5) is engaged in the arc-shaped groove on the outer wall of the multiple clips (15).

3. The composite film packaging bag outlet structure with integrated flow guide nozzle according to claim 1, characterized in that: The outer wall of the slider (10) is provided with a limiting strip (16), and there are two limiting strips (16). The inner sides of the slide groove (9) are provided with limiting grooves (17), and the limiting strip (16) is located inside the corresponding limiting groove (17).

4. The composite film packaging bag outlet structure with integrated flow guide nozzle according to claim 1, characterized in that: The bottom of the rotating cap (8) is provided with a positioning groove (18), and the top of the base (3) is provided with a positioning plate (19), the upper end of the positioning plate (19) is located inside the positioning groove (18).

5. The composite film packaging bag outlet structure with integrated flow guide nozzle according to claim 1, characterized in that: The slot (6) is in the shape of a ring-shaped semicircle, and the lower arc surface of the ring insert (14) is consistent with the shape of the inner wall of the slot (6).

6. The composite film packaging bag outlet structure with integrated flow guide nozzle according to claim 1, characterized in that: A sealing gasket is provided on the top of the flow guide (2), and the sealing gasket is located in the middle between the top of the flow guide (2) and the top of the inner wall of the threaded cap (4).

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