An eye ointment packaging material

Abstract

This utility model relates to the field of eye ointment packaging technology, and in particular to an eye ointment packaging material, including a flexible cylindrical packaging tube. An extrusion nozzle is located at the center of the top of the flexible cylindrical packaging tube, and a sealing element is screwed onto the extrusion nozzle. The lower part of the flexible cylindrical packaging tube is folded upwards to form a hemispherical top pressing part. A jacket part is integrally formed on the upper outer wall of the flexible cylindrical packaging tube, forming an annular jacket cavity between the jacket part and the outer wall of the flexible cylindrical packaging tube. A constraint element is installed inside the annular jacket cavity. This utility model, through the rigid limiting design of the rigid constraint tube and the jacket part, forces the flexible cylindrical packaging tube to fold along the central axis, reducing pressing force deviation, effectively controlling the output, significantly improving the stability and accuracy of eye ointment extrusion, and solving the problem of uneven output caused by uneven deformation of traditional packaging materials.

Description

Technical Field

[0001] This utility model relates to the field of eye ointment packaging technology, and in particular to an eye ointment packaging material. Background Technology

[0002] Traditional eye ointment packaging mostly uses tubes. For example, Chinese patent publication number CN305749851S discloses a similar tube packaging. This type of tube packaging has many problems during use:

[0003] On the one hand, when squeezing the tube, it is difficult to precisely control the amount of eye ointment dispensed, which can easily lead to too much or too little ointment being dispensed. Too much ointment will result in waste of the medicine, while too little ointment will not achieve the required dosage for treatment and will affect the treatment effect.

[0004] On the other hand, after repeated use, the opening of the tube is easily exposed to outside air and bacteria, resulting in poor sealing. This can not only cause the active ingredients in the eye ointment to oxidize and deteriorate, reducing its efficacy, but may also lead to bacterial growth, posing a risk of eye infection to patients after use.

[0005] In addition, the existing eye ointment packaging is not convenient to open and close, especially for the elderly or patients with poor hand dexterity, making the process difficult to use.

[0006] As people's demands for the safety and convenience of using eye ointments continue to increase, there is an urgent need to develop a more reasonable and practical eye ointment packaging material to solve the problems existing in the above-mentioned technologies. Utility Model Content

[0007] To solve one of the aforementioned technical problems, the present invention provides the following technical solution: an eye ointment packaging material, comprising a flexible cylindrical packaging tube, wherein the interior of the flexible cylindrical packaging tube is provided with a storage cavity for storing eye ointment, and an extrusion nozzle is provided at the center of the top of the flexible cylindrical packaging tube, a sealing member is screwed onto the extrusion nozzle, the lower part of the flexible cylindrical packaging tube is folded upward to form a hemispherical top pressing part, a jacket part is integrally formed on the upper outer wall of the flexible cylindrical packaging tube, an annular jacket cavity is formed between the jacket part and the outer wall of the flexible cylindrical packaging tube, a constraint member is installed inside the annular jacket cavity, and the upper outer wall of the constraint member is bonded and fixedly connected to the inner wall of the jacket part.

[0008] Based on any of the above technical solutions, a further optimization is made: both the flexible packaging cylindrical tube and the jacket part are integrally injection molded from low-density polyethylene.

[0009] Based on any of the above technical solutions, a further optimization is made as follows: the outer wall of the extrusion nozzle is welded and fixed at the top center hole of the flexible packaging cylindrical tube, and the lower end of the extrusion nozzle extends into the interior of the storage cavity, and an internal thread is provided on the inner wall of the inner cavity of the extrusion nozzle.

[0010] Based on any of the above technical solutions, a further optimization is made as follows: the sealing component includes a central sealing plug that fits and is screwed into the internal thread section of the extrusion tube, an external thread is provided on the outer side wall of the central sealing plug, a sealing cap is fixed on the top of the central sealing plug, and the inner side wall of the sealing cap abuts against the spherical outer side wall of the top of the flexible packaging cylindrical tube.

[0011] Based on any of the above technical solutions, a further optimization is made: a screw-in protrusion is fixed on the top of the sealing cap.

[0012] Based on any of the above technical solutions, a further optimization is made as follows: the constraint member includes a vertically arranged rigid constraint cylinder, both the upper and lower ends of the rigid constraint cylinder are through-through, the upper end of the rigid constraint cylinder is inserted into the interior of the annular jacket cavity, and the outer side wall of the rigid constraint cylinder is bonded and fixed to the inner side wall of the jacket.

[0013] Based on any of the above technical solutions, a further optimization is made: the inner wall of the rigid constraint cylinder is movably fitted with the outer wall of the flexible packaging cylindrical cylinder.

[0014] Based on any of the above technical solutions, a further optimization is made: the bottom of the rigid constraint cylinder is lower than the bottom of the flexible packaging cylindrical cylinder.

[0015] Based on any of the above technical solutions, a further optimization is made: a discharge pressing ball is fixedly adhered to the hemispherical space at the bottom of the top pressing part of the hemispherical shell.

[0016] Based on any of the above technical solutions, a further optimization is made of rubber material for the discharge pressing ball.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model uses a rigid constraint cylinder and a jacketed part to rigidly limit the flexible packaging material cylindrical tube, forcing it to fold along the central axis, reducing pressure deviation, effectively controlling the output, significantly improving the stability and accuracy of eye ointment extrusion, and solving the problem of poor output caused by uneven deformation of traditional packaging materials.

[0019] 2. This utility model utilizes the spherical bonding structure between the hemispherical top pressing part and the top cover of the hemispherical shell, combined with the elastic pushing of the bottom rubber discharge pressing ball, to greatly improve the discharge rate of residual eye ointment. Compared with the traditional structure, it can discharge more residual ointment and effectively reduce the waste of pharmaceutical resources. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model.

[0023] Figure 3 This is a cross-sectional view of the present invention in the pressed state.

[0024] Figure 4 This is a schematic diagram of the sealing component of this utility model.

[0025] Figure 5 This is a partial three-dimensional structural diagram of the flexible packaging cylindrical tube of this utility model.

[0026] In the figure, 1 is the flexible packaging cylindrical tube; 101 is the hemispherical shell top pressure part; 2 is the storage cavity; 3 is the extrusion pipe opening; 4 is the jacket part; 5 is the annular jacket cavity; 6 is the central sealing plug; 7 is the sealing cap; 8 is the screwing protrusion; 9 is the rigid constraint cylinder; and 10 is the discharge pressing ball. Detailed Implementation

[0027] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-5 As shown in the image.

[0028] Example 1: An eye ointment packaging material includes a flexible cylindrical tube 1. The interior of the flexible cylindrical tube 1 is provided with a storage cavity 2 for storing eye ointment. An extrusion port 3 is provided at the top center of the flexible cylindrical tube 1. A sealing member is screwed onto the extrusion port 3. The lower part of the flexible cylindrical tube 1 is folded upward to form a hemispherical top pressing part 101. A jacket part 4 is integrally formed on the upper outer side wall of the flexible cylindrical tube 1. An annular jacket cavity 5 is formed between the jacket part 4 and the outer side wall of the flexible cylindrical tube 1. A restraining member is installed inside the annular jacket cavity 5. The upper outer side wall of the restraining member is bonded and fixed to the inner side wall of the jacket part 4.

[0029] The eye ointment packaging material of this utility model has a simple overall structure. During use, pressing the hemispherical top pressing part 101 upwards with a finger causes the lower part of the flexible packaging cylindrical tube 1 to continuously and flexibly fold upwards. This continuously presses and compresses the internal space of the storage cavity 2, allowing the eye ointment inside the storage cavity 2 to be continuously discharged outwards through the extrusion nozzle 3. Because of the limiting constraint of the external restraints of the flexible packaging cylindrical tube 1, the upward pressing of the extrusion pressing ball 10 with a finger effectively ensures that the pressing force is applied upwards relative to the central axis of the flexible packaging cylindrical tube 1, guaranteeing smooth extrusion.

[0030] The flexible material allows the packaging to be deformed by pressure. The hemispherical top pressure section 101 is designed for easy finger application of force, and the folding structure effectively compresses the storage chamber 2, enabling smooth extrusion of the eye ointment. The jacket section 4 and the constraint components ensure that the pressing force is along the central axis, preventing uneven force distribution during packaging deformation that could lead to poor dispensing. The overall structure is simple, easy to operate, and improves the efficiency of eye ointment dispensing.

[0031] Because a hemispherical top cover is provided at the top of the flexible packaging cylindrical tube 1, when the residual amount of eye ointment inside the entire packaging material is small, the discharge pressing ball 10 adheres to the pressing part 101 of the hemispherical shell, so that the hemispherical surface of the inner side wall of the pressing part 101 of the hemispherical shell is closely fitted with the hemispherical surface of the inner side wall of the top cover. This allows for better discharge of residual eye ointment, improves the utilization rate of eye ointment, reduces residue, and reduces waste.

[0032] Controlled extrusion is achieved through a flexible folding structure, while the combination of a jacket and constraint components ensures stable material discharge direction, and the sealing component provides a seal to prevent contamination. The lower part of the flexible packaging material is designed as a foldable hemispherical top pressure section 101, breaking through the traditional extrusion method of straight tubular packaging materials, and achieving more efficient material discharge through folding deformation.

[0033] The entire structure achieves continuous extrusion of eye ointment through a simple pressing action. The constraint function ensures the stability of the dispensing process, improves the performance of the packaging material, and meets users' needs for convenient and stable use of eye ointment.

[0034] The top and bottom of the packaging are designed as hemispherical structures, and the fit of the two hemispheres is used to expel residual ointment, thus enabling the expulsion of residual eye ointment. Through the special hemispherical fit structure, the problem of residual ointment being difficult to squeeze out in traditional packaging materials is solved, improving the practicality of the packaging material.

[0035] Based on any of the above technical solutions, a further optimization is made: both the flexible packaging cylindrical tube 1 and the jacket part 4 are integrally injection molded from low-density polyethylene.

[0036] Low-density polyethylene (LDPE) is flexible and foldable. The flexible packaging cylindrical tube 1 and the jacketed part 4 are molded into a single integral structure using a one-piece injection molding process. In use, the flexible packaging cylindrical tube 1 can be folded upwards by external pressure, while the jacketed part 4 relies on the rigid support and constraint of the LPE. Simultaneously, the integrated structure ensures the relative position of the jacketed part 4 and the flexible packaging cylindrical tube 1 remains stable during folding, preventing the constraint from failing due to assembly gaps.

[0037] Based on any of the above technical solutions, a further optimization is made as follows: the outer wall of the extrusion port 3 is welded and fixed at the top center hole of the flexible packaging cylindrical tube 1, and the lower end of the extrusion port 3 extends into the interior of the storage cavity 2, and an internal thread is provided on the inner wall of the inner cavity of the extrusion port 3.

[0038] The extrusion nozzle 3 is joined to the central hole at the top of the flexible packaging cylindrical tube 1 via a heat fusion process, with its lower end extending into the storage cavity 2 to form an extended discharge channel. When the hemispherical shell pressure part 101 is pressed, the eye ointment in the storage cavity 2 is squeezed to the lower opening of the extrusion nozzle 3, and sealed by screwing the internal thread with the external thread of the sealing component. The fusion process ensures the connection strength between the extrusion nozzle 3 and the main body of the packaging material, avoiding interface cracking due to stress concentration during pressing; the lower end extending into the storage cavity 2 reduces the space for residual ointment, and the internal thread provides a standardized screw-in interface for the sealing component.

[0039] Based on any of the above technical solutions, a further optimization is made as follows: the sealing component includes a central sealing plug 6 that fits and is sealed in the internal thread section of the extrusion tube 3, an external thread is provided on the outer side wall of the central sealing plug 6, and a sealing cap 7 is fixed on the top of the central sealing plug 6, with the inner side wall of the sealing cap 7 abutting against the spherical outer side wall of the top of the flexible packaging cylindrical tube 1.

[0040] The central sealing plug 6 engages with the internal thread of the extrusion nozzle 3 via its external thread on its outer side wall, forming the first seal. The sealing cap 7 is fixed to the top of the central sealing plug 6, with its inner side wall tightly abutting against the spherical outer side wall of the top of the flexible packaging cylindrical tube 1, forming the second seal. When the sealing components are tightened, the tip of the central sealing plug 6 extends to the internal thread section of the extrusion nozzle 3, while the inner side wall of the sealing cap 7 and the spherical outer side wall form an annular extrusion surface. The double sealing structure achieves sealing through mechanical engagement and surface contact. During disassembly, rotating the sealing cap 7 causes the central sealing plug 6 to disengage from the internal thread section, and the linear motion of the thread engagement achieves opening and closing.

[0041] Based on any of the above technical solutions, a further optimization is made: a screw-in protrusion 8 is fixed on the top of the sealing cap 7.

[0042] The tightening protrusion 8 is fixed to the top of the sealing cap 7 by hot melting or injection molding, forming a plate-shaped or prismatic protrusion structure with a diameter of 3-5mm. When the user rotates the sealing cap 7, the fingertip contacts the rough surface of the tightening protrusion 8, increasing the friction. The point of force is changed from the plane of the sealing cap 7 to the edge or apex of the protrusion, reducing the torque required for tightening through the lever principle.

[0043] Example 2: Compared with Example 1, this example is different in that it also includes the following technical features. Based on any of the above technical solutions, the following is further optimized: the constraint member includes a vertically arranged rigid constraint cylinder 9, both the upper and lower ends of the rigid constraint cylinder 9 are through, the upper end of the rigid constraint cylinder 9 is inserted into the annular jacket cavity 5 and the outer side wall of the rigid constraint cylinder 9 is bonded and fixed to the inner side wall of the jacket part 4.

[0044] The rigid constraint cylinder 9 is made of rigid material and is a vertically continuous cylindrical shape. Its upper end is inserted into the annular cavity 5 between the jacket part 4 and the flexible packaging cylindrical cylinder 1, and is fixed to the inner wall of the jacket part 4 by adhesive. When the finger presses the hemispherical shell pressing part 101, the lower part of the flexible packaging cylindrical cylinder 1 folds upward. At this time, the inner wall of the rigid constraint cylinder 9 forms a radial limit on the outer wall of the flexible packaging cylindrical cylinder 1, forcing the deformation direction of the packaging material to be parallel to the central axis.

[0045] Because the constraint cylinder is open from top to bottom, the packaging material can move freely inside the cylinder when it is folded. The rigid structure of the constraint cylinder ensures that the pressure is transmitted along the central axis, avoiding the packaging material from twisting or eccentric compression due to uneven force, thereby ensuring that the eye ointment in the storage chamber 2 is squeezed out evenly.

[0046] Based on any of the above technical solutions, a further optimization is made: the inner wall of the rigid constraint cylinder 9 is movably fitted with the outer wall of the flexible packaging cylindrical cylinder 1.

[0047] A dynamic gap of 0.1-0.3 mm is formed between the inner wall of the rigid constraint cylinder 9 and the outer wall of the flexible packaging cylindrical cylinder 1, which is neither rigidly locked nor completely separated. When the hemispherical top pressing part 101 is pressed, the flexible packaging cylindrical cylinder 1 folds upward along the central axis, and its outer wall slides within the inner wall of the constraint cylinder. The movable contact surface suppresses the radial displacement of the packaging material through slight frictional resistance, while allowing the packaging material to move axially. This non-rigid contact contact state allows the constraint cylinder to limit the torsional deformation of the packaging material without hindering its normal folding, ensuring that the pressing force is evenly transmitted to the storage cavity 2.

[0048] Based on any of the above technical solutions, a further optimization is made: the bottom of the rigid constraint cylinder 9 is lower than the bottom of the flexible packaging cylindrical cylinder 1.

[0049] The bottom edge of the rigid constraint cylinder 9 extends downwards, making it lower than the bottom plane of the flexible packaging cylindrical cylinder 1. When the finger presses the hemispherical top pressing part 101, the lower part of the flexible packaging cylindrical cylinder 1 begins to fold upwards, at which point the portion of the constraint cylinder extending beyond the bottom of the packaging forms a support base. As the pressing stroke increases, the inner wall of the constraint cylinder continuously limits the outer wall of the packaging, ensuring that the pressing force is always transmitted along the central axis throughout the pressing process, avoiding material discharge deviation caused by uncontrolled deformation of the bottom of the packaging.

[0050] Based on any of the above technical solutions, a further optimization is made: a discharge pressing ball 10 is fixedly adhered to the hemispherical space at the bottom of the hemispherical shell pressing part 101.

[0051] The discharge pressing ball 10 is made of elastic materials such as rubber and is fixed to the hemispherical space at the bottom of the hemispherical shell top pressing part 101 by adhesive. When the discharge pressing ball 10 is pressed by a finger, the ball deforms under force and transmits the pressing force evenly to the hemispherical shell top pressing part 101, driving the lower part of the flexible packaging cylindrical tube 1 to fold upward.

[0052] The elastic deformation properties of the pressing ball convert the pressing force into a continuous pushing force. Even if the force applied by the fingers is uneven, the pressing ball can buffer the impact through its own elasticity, ensuring that the hemispherical shell pressing part 101 can be stably folded along the central axis. In addition, the close fit design between the pressing ball and the inner wall of the hemispherical shell pressing part 101 can push the residual eye ointment towards the extrusion nozzle 3 in the later stages of pressing, thereby reducing the amount of residue.

[0053] Based on any of the above technical solutions, a further optimization is made of rubber material for the discharge pressing ball 10.

[0054] How to use:

[0055] 1. Initial state preparation:

[0056] Structural confirmation: Check whether the flexible packaging cylindrical tube 1, the jacket part 4, the rigid constraint tube 9 and the sealing parts are intact, and ensure that the hemispherical shell top pressing part 101 is not folded or deformed, and that the discharge pressing ball 10 is firmly fixed.

[0057] Seal opening: Rotate the sealing cap 7, and separate the external thread of the center sealing plug 6 from the internal thread of the extrusion pipe 3. Remove the sealing part to expose the extrusion pipe 3.

[0058] 2. Application procedure for eye ointment:

[0059] Applying pressure: Place your fingers on the discharge pressing ball 10 at the bottom of the hemispherical shell top pressing part 101 and push it upwards evenly. The rubber pressing ball converts the pressing force into spherical thrust, driving the lower part of the flexible packaging cylindrical tube 1 to fold upwards.

[0060] Deformation transmission: Under the limiting action of the inner side wall of the rigid constraint cylinder 9, the flexible packaging cylindrical tube 1 is folded evenly along the central axis, the space of the storage cavity 2 gradually shrinks, and the eye ointment is squeezed to the lower opening of the extrusion tube 3 and discharged from the tube.

[0061] Dosage control: The amount of eye ointment dispensed is precisely controlled by adjusting the pressing force and stroke. A rigid restraint cylinder 9 ensures that the pressing force is transmitted along the central axis, preventing poor dispensing caused by packaging material twisting.

[0062] 3. Residual ointment is expelled:

[0063] Deep pressing: When the amount of eye ointment remaining in the storage chamber 2 is small, press the discharge pressing ball 10 continuously to make the inner wall of the hemispherical shell top pressing part 101 close to the inner wall of the hemispherical shell top cover at the top of the flexible packaging cylinder 1, so that the remaining ointment is completely squeezed out and the utilization rate is increased to more than 95%.

[0064] 4. Seal after use:

[0065] Reset the seal: Align the center seal plug 6 with the extrusion tube opening 3, rotate the seal cap 7 so that the external thread of the center seal plug 6 engages with the internal thread of the extrusion tube opening 3, and at the same time, the inner side wall of the seal cap 7 tightly abuts against the outer spherical side wall of the top of the flexible packaging cylindrical tube 1, forming a double seal.

[0066] Storage condition: Since the bottom of the rigid constraint cylinder 9 is lower than the bottom of the flexible packaging cylindrical cylinder 1, the packaging material can be stored stably, avoiding contamination or leakage caused by tipping over.

[0067] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0068] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. An eye ointment packaging material, characterized in that: The device includes a flexible cylindrical packaging material. The interior of the cylindrical packaging material has a storage cavity for storing eye ointment. A material extrusion port is located at the center of the top of the cylindrical packaging material, and a sealing element is screwed onto the extrusion port. The lower part of the cylindrical packaging material is folded upwards to form a hemispherical top pressure section. A jacket section is integrally formed on the upper outer wall of the cylindrical packaging material, forming an annular jacket cavity between the jacket section and the outer wall of the cylindrical packaging material. A constraint member is installed inside the annular jacket cavity, and the upper outer wall of the constraint member is bonded and fixedly connected to the inner wall of the jacket section.

2. The eye ointment packaging material according to claim 1, characterized in that: Both the flexible packaging cylindrical tube and the jacket part are integrally injection molded from low-density polyethylene.

3. The eye ointment packaging material according to claim 2, characterized in that: The outer wall of the extrusion nozzle is welded and fixed at the top center hole of the flexible packaging cylindrical tube, and the lower end of the extrusion nozzle extends into the interior of the storage cavity. An internal thread is provided on the inner wall of the inner cavity of the extrusion nozzle.

4. The eye ointment packaging material according to claim 3, characterized in that: The sealing component includes a central sealing plug that fits and seals the internal threaded section of the extrusion tube opening, an external thread is provided on the outer side wall of the central sealing plug, and a sealing cap is fixed on the top of the central sealing plug. The inner side wall of the sealing cap abuts against the spherical outer side wall of the top of the flexible packaging cylindrical tube.

5. The eye ointment packaging material according to claim 4, characterized in that: A screw-in protrusion is fixed to the top of the sealing cap.

6. The eye ointment packaging material according to claim 5, characterized in that: The constraint component includes a vertically arranged rigid constraint cylinder with both its upper and lower ends being through. The upper end of the rigid constraint cylinder is inserted into the annular jacket cavity, and the outer wall of the rigid constraint cylinder is bonded and fixed to the inner wall of the jacket.

7. The eye ointment packaging material according to claim 6, characterized in that: The inner wall of the rigid constraint cylinder is movably fitted with the outer wall of the flexible packaging cylindrical cylinder.

8. The eye ointment packaging material according to claim 7, characterized in that: The bottom of the rigid constraint cylinder is lower than the bottom of the flexible packaging cylindrical cylinder.

9. The eye ointment packaging material according to claim 8, characterized in that: A discharge pressing ball is fixedly adhered to the hemispherical space at the bottom of the top pressing part of the hemispherical shell.

10. An eye ointment packaging material according to claim 9, characterized in that: The discharge pressing ball is made of rubber.

Images