Anti-falling glass cup

By setting an outer protective shell on the outside of the glass and using upper and lower supports to fix the glass body, the problems of glass fragility and high thermal conductivity are solved, achieving good anti-drop and heat insulation effects.

CN223695516UActive Publication Date: 2025-12-23YONGKANG YANMEI IND & TRADE CO LTD
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Patent Information

Application Number
CN202520465671.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2025-12-23
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Glass cups have good thermal conductivity, which causes the surface temperature of the cup to become too high, making it difficult for users to grip. In addition, glass is fragile and easily breaks during use.

Method used

An outer protective shell is installed on the outside of the glass, including a middle shell, an upper protective cover, and a lower protective cover. The glass body is fixed by the upper and lower supports to form a spacer cavity, providing drop protection and heat insulation.

Benefits of technology

It improves the glass's impact resistance, reduces the risk of damage when dropped, and provides heat insulation through the outer protective shell, making it easy to use.

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Abstract

The utility model discloses an anti-drop glass cup which comprises a glass cup body and an outer protective shell, the outer protective shell comprises a middle shell body, an upper protective cover and a lower protective cover, the middle shell body is sleeved outside the glass cup body, and the upper protective cover and the lower protective cover are respectively fixed at the upper end and the lower end of the middle shell body. The upper protective cover comprises an upper outer cover and an upper support fixed in the upper outer cover, the lower protective cover comprises a lower outer cover and a lower support fixed in the lower outer cover, the upper outer cover and the lower outer cover are made of hard materials and respectively sleeved outside the upper end and the lower end of the middle shell, the upper support is pressed on the shoulder, and the lower support is pressed on the lower end of the middle shell. The lower support is supported at the bottom of the glass cup body, the upper support and the lower support fix the upper end and the lower end of the glass cup body respectively, a spacing cavity is formed between the glass cup body and the middle shell, and the outer protective shell can play a good anti-falling protection role on the glass cup body inside.
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Description

Technical Field

[0001] This utility model relates to a glass cup, and more particularly to a shatterproof glass cup. Background Technology

[0002] A glass cup is a cup made of glass, usually high borosilicate glass, which is fired at a high temperature of over 600 degrees Celsius. It is a new type of environmentally friendly tea cup. Because it does not contain organic chemicals, has a smooth surface, is easy to clean, and does not easily allow bacteria to grow on the cup wall, it is becoming increasingly popular.

[0003] For example, Chinese utility model patent CN201675621U discloses a non-slip glass cup, which includes a glass cup body, a glass liner inside the glass cup body, and a heat insulation cavity between the glass cup body and the glass liner.

[0004] Glass has good thermal conductivity and high heat transfer efficiency. Even with a double-layered structure, the surface temperature of the cup can become too high, making it difficult for users to grip and pick up the cup. In addition, glass is fragile and can easily break during use, such as when it falls from a table to the ground, with the two ends of the cup usually making contact with the ground first. Utility Model Content

[0005] Given that glass has good thermal conductivity, which leads to excessively high surface temperatures in the cup, making it difficult for users to grip, and that glass is easily shattered and prone to breaking when dropped during use, this utility model provides a drop-proof glass cup.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a shatterproof glass cup, including a glass cup body and an outer protective shell, wherein the glass cup body is fitted into the outer protective shell, the glass cup body includes a cup body and a cup mouth located on the upper part of the cup body, and a shoulder is formed between the cup body and the cup mouth, the outer protective shell includes a middle shell with openings at both ends, an upper protective cover and a lower protective cover, the middle shell is fitted over the outside of the glass cup body, the upper protective cover and the lower protective cover are respectively fixed to the upper and lower ends of the middle shell, the upper protective cover includes an upper outer cover and a cover fixed inside the upper outer cover. The upper support and lower protective cover of the middle shell include a lower outer cover and a lower support fixed inside the lower outer cover. The upper and lower outer covers are made of rigid material. The upper and lower outer covers are respectively fitted onto the upper and lower ends of the middle shell. The upper outer cover has a through-hole for the cup mouth to extend out. The upper support is pressed down on the shoulder, and the lower support supports the bottom of the glass body. The upper and lower supports respectively fix the upper and lower ends of the glass body and position the glass body in the middle of the middle shell, so that a spacer cavity is formed between the glass body and the middle shell.

[0007] The further preferred technical scheme of the utility model discloses: the upper support includes the first ring and the inner ring edge of being arranged at the first ring upper end, the inner ring edge is fixed on the inner top surface of upper outer cover, and the inner ring edge is pressed on the shoulder, and the first ring is sleeved on the upper end outside of cup body and is attached with the outer wall of cup body, the lower support is formed with the positioning groove in the inner concave, and the bottom of glass cup body is arranged in the positioning groove, and the inner edge of the through hole has the gap with the cup mouth.

[0008] The further preferred technical scheme of the utility model discloses: the upper support still includes the horizontal support part and the second ring of being arranged at the lower end of first ring and extending laterally to the outside, and the second ring extends downward from the outer edge of horizontal support part, and the outer wall of second ring is attached with the inner wall of intermediate casing, so that the upper cavity is formed between first ring and intermediate casing, and the upper support has elasticity.

[0009] The further preferred technical scheme of the utility model discloses: the lower support includes the support plate and the annular support wall extending downward from the outer edge of support plate, and the annular support wall is fixed on the inner bottom surface of lower outer cover, so that the lower cavity is formed between support plate and the inner bottom surface of lower outer cover, and the lower support has elasticity, and the positioning groove is arranged on the top surface of support plate.

[0010] The further preferred technical scheme of the utility model discloses: the upper outer cover and the upper support form the upper annular insertion slot for the upper end of intermediate casing to be insertedly connected, and the lower outer cover and the lower support form the lower annular insertion slot for the lower end of intermediate casing to be insertedly connected.

[0011] The further preferred technical scheme of the utility model discloses: the outer side of the upper end of intermediate casing is provided with the upper accommodating groove, the side wall of upper outer cover is inserted into the upper accommodating groove, and the outer wall surface of upper outer cover is flush with the outer wall surface of intermediate casing, the outer side of the lower end of intermediate casing is provided with the lower accommodating groove, the side wall of lower outer cover is inserted into the lower accommodating groove, and the outer wall surface of lower outer cover is flush with the outer wall surface of intermediate casing.

[0012] The further preferred technical scheme of the utility model discloses: the intermediate casing is made of transparent material.

[0013] The further preferred technical scheme of the utility model discloses: the outer side of upper outer cover and lower outer cover is sleeved with silica gel cover or rubber cover.

[0014] The further preferred technical scheme of the utility model discloses: the upper support and upper outer cover are made of metal material, the wall thickness of upper outer cover is greater than the wall thickness of upper support, and the upper support is the sheet structure.

[0015] The further preferred technical scheme of the utility model discloses: the lower support and lower outer cover are made of metal material, the wall thickness of lower outer cover is greater than the wall thickness of lower support, and the lower support is the sheet structure.

[0016] Compared with the prior art, the utility model discloses the advantage that the outer protective shell is arranged on the outside of the glass cup body, the outer protective shell includes the intermediate casing with the opening at both ends, the upper protective cover and the lower protective cover, the intermediate casing is sleeved on the outside of the glass cup body, the upper protective cover and the lower protective cover are fixed to the upper and lower ends of the intermediate casing respectively, the upper protective cover includes the upper outer cover and the upper support fixed in the upper outer cover, the lower protective cover includes the lower outer cover and the lower support fixed in the lower outer cover, the upper outer cover and the lower outer cover are made of hard material, the upper outer cover and the lower outer cover are sleeved on the outside of the upper and lower ends of the intermediate casing respectively, the upper support is pressed on the shoulder, the lower support is supported on the bottom of the glass cup body, the upper support and the lower support are fixed to the upper and lower ends of the glass cup body respectively, and the glass cup body is positioned at the middle position of the intermediate cover body, so that the interval cavity is formed between the glass cup body and the intermediate casing, the glass cup body sleeved on the inside is protected by the outer protective shell on the outside, the effect of preventing falling and collision is good, and the outer protective shell also has the effect of heat insulation, and is convenient for using the glass cup.

[0017] The upper outer cover and the lower outer cover are made of hard material, and the upper outer cover and the lower outer cover are respectively wrapped on the outside of the upper and lower ends of the intermediate casing, so that the upper outer cover and the lower outer cover made of hard material are in contact with the ground when the cup falls, and the effect of preventing falling and deformation is better.

[0018] The upper protective cover is divided into the upper outer cover wrapped on the upper end of the intermediate casing and the upper support arranged in the inside and used for fixing the upper end of the glass cup body, and the lower protective cover is divided into the lower outer cover wrapped on the lower end of the intermediate casing and the lower support arranged in the inside and used for fixing the lower end of the glass cup body, so that the upper protective cover and the lower protective cover are conveniently processed and formed, and the forming difficulty is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be described further in detail below by combining with the drawings and preferred embodiments, but the person skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be regarded as the limitation to the scope of the utility model. In addition, unless specifically pointed out, the drawings only schematically show the composition or structure of the described object conceptually and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 It is the overall structure schematic diagram of glass cup;

[0021] Figure 2 It is the overall cut schematic diagram of glass cup;

[0022] Figure 3 It is Figure 2 The partial enlarged view of A of

[0023] Figure 4 It is Figure 2 The partial enlarged view of B of

[0024] Figure 5It is a structural schematic view of the upper protective cover;

[0025] Figure 6 It is an exploded view of the upper protective cover;

[0026] Figure 7 It is a structural schematic view of the lower protective cover;

[0027] Figure 8 It is an exploded view of the lower protective cover

[0028] Figure 9 It is a structural schematic view of the middle shell;

[0029] Figure 10 It is a structural schematic view of the glass cup body.

[0030] In the figure: 1, outer protective shell; 2, glass cup body; 3, upper protective cover; 4, middle shell; 5, lower protective cover; 6, cup body; 7, cup mouth; 8, through hole; 9, shoulder; 10, upper outer cover; 11, upper support; 12, lower outer cover; 13, lower support; 14, positioning groove; 15, inner ring edge; 16, first sleeve ring; 17, upper annular insertion groove; 18, transverse support part; 19, second sleeve ring; 20, support plate; 21, annular support wall; 22, lower cavity; 23, lower annular insertion groove; 24, spacing cavity; 25, upper cavity; 26, upper containing groove; 27, lower containing groove. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is merely illustrative and exemplary, and should not be construed as limiting the scope of protection of the present application.

[0032] It should be noted that similar reference numerals represent similar items in the following drawings, so once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0033] Figures 1-10 As shown, the anti-falling glass cup comprises a glass cup body 2 and an outer protective shell 1, the glass cup body 2 is sleeved into the outer protective shell 1, and the outer protective shell 1 protects the internal glass cup body 2 to achieve the effects of anti-falling, anti-impact and heat insulation.

[0034] Figure 10 As shown, the glass cup body 2 comprises a cup body 6 and a cup mouth 7 arranged at the upper part of the cup body 6, a shoulder 9 is formed between the cup body 6 and the cup mouth 7, and the shoulder 9 is a ring-shaped step. The present patent is not limited to the number of layers of the glass cup body 2, which can be single-layer, double-layer or multi-layer, and is not limited to the shape of the glass cup body 2, which can be a square column, a circular column or a polygonal column. Preferably, the glass cup body 2 disclosed in the present embodiment is a circular column structure.

[0035] Figures 1-4 As shown, the outer protective shell 1 comprises a middle shell 4 with openings at both ends, an upper protective cover 3 and a lower protective cover 5, the middle shell 4 is through at both ends and has a space inside for accommodating the glass cup body 2, the middle shell 4 is sleeved on the outside of the glass cup body 2, the upper protective cover 3 and the lower protective cover 5 are respectively fixed to the upper and lower ends of the middle shell 4 to cover the openings at the upper and lower ends of the middle shell 4, the upper protective cover 3 comprises an upper outer cover 10 and an upper support 11 fixed inside the upper outer cover 10, the lower protective cover 5 comprises a lower outer cover 12 and a lower support 13 fixed inside the lower outer cover 12, the upper outer cover 10 and the lower outer cover 12 are both made of hard material, the upper outer cover 10 and the lower outer cover 12 are respectively sleeved on the outside of the upper and lower ends of the middle shell 4, the upper outer cover 10 is provided with a through hole 8 for the cup mouth 7 to extend out, the upper support 11 is pressed on the shoulder 9, and the lower support 13 is supported on the bottom of the glass cup body 2, the upper support 11 and the lower support 13 respectively fix the upper and lower ends of the glass cup body 2 and position the glass cup body 2 in the middle position of the middle shell 4, so that the space cavity 24 is formed between the glass cup body 2 and the middle shell 4, the glass cup body 2 is fixed in the middle position of the middle shell 4 by the upper support 11 and the lower support 13, and the space cavity 24 is arranged between the glass cup body 2 and the middle shell 4, so that the outer protective shell 1 can play a good protective effect when the glass cup falls, the anti-falling performance of the glass cup body 2 is improved, and the heat insulation effect of the outer protective shell 1 is better.

[0036] The hard upper outer cover 10 and the lower outer cover 12 are wrapped on the outside of the upper and lower ends of the middle shell 4, when the glass cup falls and lands on the end, the hard upper outer cover 10 and the lower outer cover 12 can play a better anti-deformation, anti-falling and anti-impact effect, improve the overall anti-falling performance, divide the upper protective cover 3 into the upper outer cover 10 wrapped on the upper end of the middle shell 4 and the upper support 11 arranged inside for fixing the upper end of the glass cup body 2, and divide the lower protective cover 5 into the lower outer cover 12 wrapped on the lower end of the middle shell 4 and the lower support 13 arranged inside for fixing the lower end of the glass cup body 2, which facilitates the molding of the upper protective cover 3 and the lower protective cover 5 and reduces the molding difficulty.

[0037] The cup mouth 7 of the glass cup extending out of the through hole 8 is used for connecting a cup cover and drinking after the user opens the cup cover, the cup cover and the cup mouth 7 of the glass cup can be connected by thread connection or elastic expansion clamping joint, when the cup cover is connected on the cup mouth 7, the cup mouth 7 is inserted into the cup cover.

[0038] The middle shell 4 is made of transparent material, which is convenient for the user to observe the situation of the drink contained in the glass cup body 2. Preferably, the middle shell 4 is made of plastic material.

[0039] Figure 5 、 Figure 7As shown, an upper annular slot 17 is formed between the upper outer cover 10 and the upper bracket 11 for the upper end of the intermediate housing 4 to be inserted and connected. A lower annular slot 23 is formed between the lower outer cover 12 and the lower bracket 13 for the lower end of the intermediate housing 4 to be inserted and connected. The upper and lower ends of the intermediate housing 4 are respectively inserted into the upper annular slot 17 and the lower annular slot 23. The upper and lower ends of the intermediate housing 4 can be glued and fixed to the inner walls of the upper annular slot 17 and the lower annular slot 23, or connected by a threaded structure.

[0040] Figure 9 As shown, an upper receiving groove 26 is provided on the outer side of the upper end of the intermediate shell 4. The side wall of the upper outer cover 10 is inserted into the upper receiving groove 26. The outer wall surface of the upper outer cover 10 is flush with the outer wall surface of the intermediate shell 4. A lower receiving groove 27 is provided on the outer side of the lower end of the intermediate shell 4. The side wall of the lower outer cover 12 is inserted into the lower receiving groove 27. The outer wall surface of the lower outer cover 12 is flush with the outer wall surface of the intermediate shell 4. The upper outer cover 10, the lower outer cover 12 and the intermediate shell 4 are smoothly transitioned, making the overall outer wall of the outer protective shell 1 flat and the appearance more beautiful.

[0041] Both the upper outer cover 10 and the lower outer cover 12 are fitted with silicone or rubber sleeves. When the upper or lower end of the glass cup hits the ground, the silicone or rubber sleeves provide good cushioning and improve its impact resistance. Furthermore, patterns, textures, and colors can be applied to the silicone or rubber sleeves to enhance their overall aesthetics.

[0042] Figure 3 , Figure 6 As shown, the upper support 11 includes a first collar 16 and an inner ring edge 15 located at the upper end of the first collar 16. The inner ring edge 15 is fixed to the inner top surface of the upper outer cover 10 and presses down on the shoulder 9. The first collar 16 is fitted around the upper outer part of the cup body 6 and fits against the outer wall of the cup body 6. A positioning groove 14 is formed in the recess of the lower support 13. The bottom of the glass cup body 2 is placed in the positioning groove 14. There is a gap between the inner edge of the opening 8 and the cup mouth 7. The upper end of the glass cup body 2 is positioned and fixed by the inner ring edge 15 and the first collar 16, and the lower end of the glass cup body 2 is positioned and fixed by the positioning groove 14, so that the glass cup body 2 can be fixed in the middle of the outer protective cover.

[0043] The upper support 11 also includes a lateral support portion 18 and a second ring 19, which are located at the lower end of the first ring 16 and extend laterally outward. The second ring 19 extends downward from the outer edge of the lateral support portion 18. The outer wall of the second ring 19 fits against the inner wall of the intermediate shell 4, so that an upper cavity 25 is formed between the first ring 16 and the intermediate shell 4. The upper support 11 is elastic and is supported between the intermediate shell 4 and the first ring 16 used to fix the upper end of the glass cup 2 by the lateral support portion 18. When the glass cup is dropped and impacted, the lateral support portion 18 is squeezed and undergoes elastic deformation, absorbing the impact transmitted from the outside to the inside, thus achieving better drop resistance and impact resistance.

[0044] Preferably, both the upper support 11 and the upper outer cover 10 are made of metal. The wall thickness of the upper outer cover 10 is greater than that of the upper support 11. The upper support 11 has a thin sheet structure. By setting the upper support 11 into a sheet shape, it has a certain degree of elasticity while maintaining the supporting strength of the metal material. This allows the lateral support part 18 to deform elastically when impacted, thereby reducing the impact on the inner glass cup 2. The outer upper cover 10 has a relatively thick wall, giving it excellent impact resistance and deformation resistance. Most preferably, the upper support 11 and the upper outer cover 10 are made of steel. The upper support 11 and the upper outer cover 10 can also be made of other materials, such as plastic. The aforementioned metal material is only a preferred material in this patent.

[0045] Preferably, the inner ring edge 15 and the inner top surface of the upper outer cover 10 can be welded and fixed together, and the inner ring edge 15, the first ring 16, the transverse support part 18 and the second ring 19 are integrally formed.

[0046] Figure 4 , Figure 8 As shown, the lower support 13 includes a support plate 20 and an annular support wall 21 extending downward from the outer edge of the support plate 20. The annular support wall 21 is fixed to the inner bottom surface of the lower outer cover 12, forming a lower cavity 22 between the support plate 20 and the inner bottom surface of the lower outer cover 12. The lower support 13 is elastic, and the positioning groove 14 is provided on the top surface of the support plate 20. It is supported between the support plate 20 and the inner bottom surface of the lower outer cover 12 by the annular support wall 21. When the glass is dropped and impacted, the annular support wall 21 is squeezed at the connection between the annular support wall 21 and the support plate 20 and undergoes elastic deformation, absorbing the impact transmitted from the outside to the inside, thus achieving better drop resistance and impact resistance.

[0047] Preferably, the lower end of the annular support wall 21 can be welded and fixed to the inner bottom surface of the lower outer cover 12, and the annular support wall 21 and the support plate 20 are integrally formed.

[0048] Preferably, both the lower support 13 and the lower outer cover 12 are made of metal. The wall thickness of the lower outer cover 12 is greater than that of the lower support 13. The lower support 13 has a thin sheet structure. By setting the lower support 13 into a sheet shape, it has a certain degree of elasticity while maintaining the supporting strength of the metal material. This allows the connection between the annular support wall 21 and the support plate 20 to deform elastically when impacted, thereby reducing the impact on the inner glass cup 2. The outer wall thickness of the lower outer cover 12 is relatively thick, giving it excellent impact resistance and deformation resistance. Most preferably, the lower support 13 and the lower outer cover 12 are made of steel. The lower support 13 and the lower outer cover 12 can also be made of other materials, such as plastic. The aforementioned metal material is only a preferred material in this patent.

[0049] The above describes the shatterproof glass cup provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A shatterproof glass cup, comprising a glass cup body and an outer protective shell, wherein the glass cup body is fitted inside the outer protective shell, the glass cup body includes a cup body and a rim located on the upper part of the cup body, and a shoulder is formed between the cup body and the rim, characterized in that, The outer protective shell includes a middle shell with openings at both ends, an upper protective cover, and a lower protective cover. The middle shell is fitted over the outside of the glass body. The upper and lower protective covers are fixed to the upper and lower ends of the middle shell, respectively. The upper protective cover includes an upper outer cover and an upper bracket fixed inside the upper outer cover. The lower protective cover includes a lower outer cover and a lower bracket fixed inside the lower outer cover. The upper and lower outer covers are made of rigid material. The upper and lower outer covers are fitted over the upper and lower ends of the middle shell, respectively. The upper outer cover has a through-hole for the glass mouth to extend out. The upper bracket is pressed down on the shoulder. The lower bracket supports the bottom of the glass body. The upper and lower brackets fix the upper and lower ends of the glass body and position the glass body in the middle of the middle shell, forming a spacer cavity between the glass body and the middle shell.

2. The shatterproof glass cup according to claim 1, characterized in that, The upper support includes a first ring and an inner ring edge located at the upper end of the first ring. The inner ring edge is fixed to the inner top surface of the upper outer cover and is pressed down on the shoulder. The first ring is fitted around the upper outer part of the cup body and fits against the outer wall of the cup body. A positioning groove is formed in the recess of the lower support. The bottom of the glass cup body is placed in the positioning groove. There is a gap between the inner edge of the opening and the cup mouth.

3. The shatterproof glass cup according to claim 2, characterized in that, The upper support also includes a lateral support portion and a second ring, which are located at the lower end of the first ring and extend laterally outward. The second ring extends downward from the outer edge of the lateral support portion, and the outer wall of the second ring fits against the inner wall of the intermediate shell, so that an upper cavity is formed between the first ring and the intermediate shell. The upper support is elastic.

4. The shatterproof glass cup according to claim 2, characterized in that, The lower support includes a support plate and an annular support wall extending downward from the outer edge of the support plate. The annular support wall is fixed to the inner bottom surface of the lower outer cover, so that a lower cavity is formed between the support plate and the inner bottom surface of the lower outer cover. The lower support is elastic, and the positioning groove is provided on the top surface of the support plate.

5. The shatterproof glass cup according to claim 1, characterized in that, An upper annular slot is formed between the upper outer cover and the upper bracket for the upper end of the intermediate housing to be inserted and connected, and a lower annular slot is formed between the lower outer cover and the lower bracket for the lower end of the intermediate housing to be inserted and connected.

6. The shatterproof glass cup according to claim 1, characterized in that, The upper outer side of the middle housing is provided with an upper receiving groove, the side wall of the upper outer cover is inserted into the upper receiving groove, and the outer wall surface of the upper outer cover is flush with the outer wall surface of the middle housing. The lower outer side of the middle housing is provided with a lower receiving groove, the side wall of the lower outer cover is inserted into the lower receiving groove, and the outer wall surface of the lower outer cover is flush with the outer wall surface of the middle housing.

7. The shatterproof glass cup according to claim 1, characterized in that, The intermediate shell is made of a transparent material.

8. The shatterproof glass cup according to claim 1, characterized in that, Both the upper and lower outer covers are fitted with silicone or rubber sleeves on their outer sides.

9. The shatterproof glass cup according to claim 3, characterized in that, Both the upper support and the upper outer cover are made of metal. The wall thickness of the upper outer cover is greater than that of the upper support. The upper support is a thin sheet structure.

10. The shatterproof glass cup according to claim 4, characterized in that, Both the lower support and the lower outer cover are made of metal. The wall thickness of the lower outer cover is greater than that of the lower support. The lower support is a thin sheet structure.

Citation Information

Patent Citations

  • Antislip glass cup

    CN201675621U