A paste packaging bottle
Patent Information
- Application Number
- CN202522351949.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-06
AI Technical Summary
Existing pump-type ointment packaging bottles are prone to decreased stability in the later stages of use due to the raised bottom structure, and the residual ointment is difficult to completely extract, resulting in waste and inconvenience.
The bottle is designed with an inward-curving first protrusion on the bottom and multiple outward-protruding second protrusions on the body. Combined with a curved tube structure, it forms a ring-shaped liquid collection space, using gravity to guide the residual paste to gather, and the multiple second protrusions expand the bottom support area to improve stability.
It significantly reduces the residue rate of the paste, improves the utilization rate of materials, enhances the stability of the bottle during its service life, prevents tipping, and reduces manufacturing costs.
Smart Images

Figure CN224929401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bottles, and in particular to a paste packaging bottle. Background Technology
[0002] In the fields of daily chemicals, cosmetics, and pharmaceuticals, ointment packaging bottles, such as toothpaste bottles, hand cream bottles, and ointment bottles, widely adopt a pump-type dispensing structure. By pressing the pump head, the ointment inside the bottle is drawn to the outside to meet the needs of quantitative dispensing and avoid contamination. This type of structure has become the mainstream design form due to its ease of operation.
[0003] However, most existing pump-type ointment packaging bottles have a flat bottom. As the ointment is used, when the remaining amount is low, the ointment tends to adhere to the corners and flat surfaces of the bottle bottom due to its poor flowability. This prevents the pump's suction end from effectively contacting the residual ointment. Even with auxiliary operations such as inverting the bottle or squeezing the bottle, it is still difficult to completely extract the residual ointment, resulting in waste of ointment material and reduced user satisfaction.
[0004] To solve the above-mentioned problem of paste residue, such as Figure 1 As shown, an improvement scheme is proposed in the prior art: the bottom of the packaging bottle is designed with an upward convex structure. This convex structure reduces the area of the bottom surface of the bottle, causing the residual paste to flow towards the convex peripheral bottom surface under the action of gravity and slight shaking. The suction end of the pump body is set with multiple branch structures facing the convex peripheral bottom surface, so that the pump body can more fully contact and extract the paste, thereby reducing the amount of paste residue to a certain extent.
[0005] However, the aforementioned bottom-protrusion improvement has significant drawbacks: the manufacturing cost of the bifurcated structure is high, and as the ointment is continuously consumed, the overall weight of the packaging bottle gradually decreases. Furthermore, the bottom-protrusion structure further reduces the contact area between the bottle and the placement surface, leading to decreased stability. During daily use, the packaging bottle is highly prone to tipping over. Tipping can not only damage the pump head and cause ointment leakage and contamination, but also increase user inconvenience due to repeated tipping. In the pharmaceutical field, ointment contamination can even affect safety. Therefore, the existing technology still lacks an effective solution that can simultaneously reduce ointment residue and ensure bottle stability. Utility Model Content
[0006] The purpose of this invention is to solve the above-mentioned technical problems and provide a lower-cost paste packaging bottle structure that balances reducing paste residue and improving bottle stability.
[0007] A paste packaging bottle includes a bottle body and a pump body. The pump body is equipped with a suction tube and is installed at the bottle mouth of the bottle body, allowing the suction tube to extend into the bottle body. The bottom surface of the bottle body has a first protrusion recessed into the inner cavity of the bottle body. The bottle body has a plurality of evenly arranged second protrusions protruding outward at the position where it connects with the bottom surface. The second protrusions have a protruding area protruding out of the bottle body and a supporting area flush with the bottom surface of the bottle body. The suction port of the suction tube bends and extends along the top wall of the first protrusion into the annular liquid collection space formed by the first protrusion, the second protrusions, and the bottom surface of the bottle body.
[0008] According to the ointment packaging bottle of this application, a first protrusion recessed into the inner cavity is provided on the bottom surface of the bottle body. Gravity can guide the residual ointment in the bottle to converge into the annular liquid collection space formed by the first protrusion, the second protrusion and the bottom surface of the bottle body. This avoids the residual ointment from spreading flat on the bottom surface due to the large bottom area of the bottle body, making it impossible for the pump to extract it, thus significantly reducing the ointment residue rate and improving the material utilization rate. The pump body adopts a single curved suction tube, which is simpler in structure and lower in manufacturing cost than a bifurcated tube. Multiple second protrusions with outward protrusion and support areas are provided at the junction of the bottle body and the bottom surface. The support areas contact the placement surface, expanding the support area of the bottom of the bottle body. The protruding areas can make the bottle body present an overall shape that is smaller at the top and larger at the bottom. The two work together to significantly improve the stability of the bottle body compared with the existing technology, so that the bottle body will not easily tip over as the overall packaging bottle becomes lighter after the ointment is used.
[0009] Furthermore, the bottle body has a circular cross-section, and the plurality of evenly arranged second protrusions have circumcircles. The ratio of the diameter of the cross-section at the largest point of the bottle body to the diameter of the largest circumcircle is 1:1.05 to 1:1.15. This ratio ensures that the protruding area of the second protrusion extends outward to a moderate extent, which improves the bottle's anti-tipping ability without causing the overall volume of the packaging bottle to be too large due to excessive outward protrusion of the second protrusion, thus balancing stability with the convenience of storage and transportation.
[0010] Furthermore, the ratio of the height of the bottle body to the height of the second protrusion is between 4.55:1 and 4.65:1. This ratio avoids the problems of the second protrusion being too high, resulting in a heavy bottom, inconsistent appearance, and material waste, or too low, resulting in insufficient support and inability to effectively provide stability. It is the preferred ratio that balances stability and product aesthetics.
[0011] Furthermore, the number of the second protrusions is ≥4. Compared to 3 or fewer second protrusions, 4 or more can form a more uniform and distributed support structure, evenly distributing the weight of the bottle and external forces to each support area. The evenly arranged multiple second protrusions can form a ring-shaped support range around the bottom of the bottle. Regardless of slight tilting of the placement surface or lateral impact, the tipping moment can be offset by multiple support points, further improving the stability of the bottle throughout its entire service life.
[0012] Furthermore, the first protrusion forms a circular first support surface on the bottom surface of the bottle. The support area is an arc-shaped second support surface outside the support surface and connected to it. The second support surface is evenly distributed around the first support surface. The circular first support surface formed by the first protrusion serves as the basic support structure for the bottle, ensuring the initial stability of the bottle. The second support surface is designed as an arc-shaped plane surrounding the first support surface and is evenly distributed. On the one hand, the dual support structure of the first and second support surfaces significantly increases the effective contact area between the bottle and the placement surface, improving support stability.
[0013] Furthermore, the first protrusion has a circular cross-section, and the ratio of the diameter of the cross-section at the largest point of the first protrusion to the diameter of the largest circumscribed circle is 1:1.75 to 1:1.90. This ratio ensures the formation of a first support surface and a second support surface on the bottom surface of the bottle, thereby stably supporting the bottle on the placement surface.
[0014] Furthermore, the first support surface and / or the second support surface are provided with anti-slip textures. These textures enhance the bottle's anti-slip performance, allowing it to be placed more stably on smooth surfaces such as glass. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a packaging bottle based on the prior art of this utility model.
[0016] Figure 2 This is a perspective view of the ointment packaging bottle of this utility model.
[0017] Figure 3 This is a front view of the ointment packaging bottle of this utility model.
[0018] Figure 4 This is a cross-sectional view of the ointment packaging bottle of this utility model.
[0019] Figure 5 This is a bottom view of the ointment packaging bottle of this utility model. Detailed Implementation
[0020] The present invention relates to a paste packaging bottle, illustrated in conjunction with the accompanying drawings.
[0021] like Figures 2 to 5 The illustration shows a paste packaging bottle, including a bottle body 1 and a pump body 2. The pump body 2 is equipped with a suction tube 21 and is installed at the bottle mouth of the bottle body 1, with the suction tube 21 extending into the bottle body 1. The bottom surface of the bottle body 1 has a first protrusion 11 recessed into the inner cavity of the bottle body 1. When the bottle body 1 is placed normally on a surface, gravity can guide the residual paste in the bottle to flow to the periphery of the first protrusion 11. The bottle body 1 has multiple evenly arranged second protrusions 12 protruding outward from the position where it contacts the bottom surface. The second protrusions 12 have a protruding area 121 protruding from the bottle body and a support area 122 flush with the bottom surface of the bottle body 1. The suction port 21 of the suction tube 21 is... 11 extends along the top wall of the first protrusion 11 to the annular liquid collection space 14 formed by the first protrusion 11, the second protrusion 12 and the bottom surface of the bottle body 1. The residual paste in the bottle body 1 can flow into the liquid collection space 14 under the guidance of gravity. The pump body 2 adopts a single curved suction tube 21, which is simpler and has a lower manufacturing cost than the structure of a bifurcated tube. By contacting the placement surface with the support area 122, the support area at the bottom of the bottle body 1 is expanded. The protruding area 121 can make the bottle body 1 present an overall pattern of being smaller at the top and larger at the bottom. The two work together to significantly improve the stability of the bottle body 1 compared with the existing technology, so that the bottle body 1 will not easily tip over because the packaging bottle becomes lighter after the paste is used.
[0022] The bottle body has a circular cross-section, and the plurality of evenly arranged second protrusions 12 have circumcircles. The ratio of the diameter of the cross-section at the largest point of the bottle body to the diameter of the largest circumcircle is 1:1.05 to 1:1.15.
[0023] The ratio of the height of the bottle body 1 to the height of the second protrusion 12 is 4.55:1 to 4.65:1.
[0024] The number of the second protrusion 12 is ≥4, such as Figures 2 to 5 As shown, in the embodiments of this application, the number of second protrusions 12 is 6.
[0025] The first protrusion 11 forms a circular first support surface 13 on the bottom surface of the bottle body 1. The support area 122 is an arc-shaped second support surface outside the support surface and connected to the support surface. The second support surface is evenly arranged around the first support surface 13.
[0026] The first protrusion 11 has a circular cross-section, and the ratio of the diameter of the cross-section at the largest point of the first protrusion 11 to the diameter of the largest circumscribed circle is 1:1.75 to 1:1.90.
[0027] like Figures 2 to 5 As shown, this application provides a specific embodiment of a paste packaging bottle, wherein, as Figure 4As shown, the diameter of the cross-section at the maximum point of the bottle body is B = 64.46 ± 0.90 mm. Figure 5 As shown, the diameter of the largest circumscribed circle is A = 71.87 ± 0.90 mm. Therefore, the ratio of the diameter of the cross-section at the largest point of the bottle body to the diameter of the largest circumscribed circle is 1:1.11.
[0028] like Figure 4 As shown, the height of the bottle body 1 is E=105.40±1.20mm, and the height of the second protrusion 12 is D=22.92±0.90mm. Therefore, the ratio of the height of the bottle body 1 to the height of the second protrusion 12 is 4.60∶1.
[0029] like Figure 5 The diameter of the cross-section at the maximum point of the first protrusion 11 is C=39.20±0.90 mm, and the diameter of the maximum circumscribed circle is A=71.87±0.90 mm. Therefore, the ratio of the diameter of the cross-section at the maximum point of the first protrusion 11 to the diameter of the maximum circumscribed circle is 1:1.83.
[0030] In a preferred embodiment, the first support surface 13 and / or the second support surface are provided with anti-slip textures, preferably silicone anti-slip textures, thereby improving the friction between the first support surface 13 and the second support surface, so that they can maintain strong friction even on a smooth placement surface, thereby maintaining the stability of the packaging bottle.
[0031] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A paste packaging bottle, characterized in that, The device includes a bottle body and a pump body. The pump body is equipped with a suction tube and is installed at the bottle mouth of the bottle body, allowing the suction tube to extend into the bottle body. The bottom surface of the bottle body has a first protrusion recessed into the inner cavity of the bottle body. The bottle body has multiple evenly arranged second protrusions protruding outward at the position where it connects with the bottom surface. The second protrusions have a protruding area that protrudes outward from the bottle body and a supporting area that is flush with the bottom surface of the bottle body. The suction port of the suction tube bends and extends along the top wall of the first protrusion into the annular liquid collection space formed by the first protrusion, the second protrusions, and the bottom surface of the bottle body.
2. The ointment packaging bottle according to claim 1, characterized in that, The bottle body has a circular cross-section, and the plurality of evenly arranged second protrusions have circumcircles. The ratio of the diameter of the cross-section at the largest point of the bottle body to the diameter of the largest circumcircle is 1:1.05 to 1:1.
15.
3. The ointment packaging bottle according to claim 1, characterized in that, The ratio of the height of the bottle body to the height of the second protrusion is 4.55:1 to 4.65:
1.
4. The ointment packaging bottle according to claim 1, characterized in that, The number of the second protrusion is ≥4.
5. The ointment packaging bottle according to claim 1, characterized in that, The first protrusion forms a circular first support surface on the bottom surface of the bottle. The support area is an arc-shaped second support surface outside the support surface and connected to the support surface. The second support surface is evenly arranged around the first support surface.
6. The ointment packaging bottle according to claim 5, characterized in that, The first protrusion has a circular cross-section, and the ratio of the diameter of the cross-section at the largest point of the first protrusion to the diameter of the largest circumscribed circle is 1:1.75 to 1:1.
90.
7. The ointment packaging bottle according to claim 5, characterized in that, The first support surface and / or the second support surface are provided with anti-slip texture.
