Water cup body

Abstract

The utility model discloses a water cup body which comprises a cup body, the cup body comprises a shell and an inner container which are fixedly connected with each other, the inner container comprises a cup body part, the top of the cup body part is fixedly connected with the shell, the bottom of the cup body part is provided with a first connecting section, and the first connecting section surrounds the axis of the cup body; the cup bottom comprises a concave arc-shaped cup bottom section and a second connecting section connected to the top of the cup bottom section, and the second connecting section surrounds the axis of the cup body. Wherein the first connecting section is connected with the second connecting section, the second connecting section extends in the extending direction of the first connecting section, and the surface of the second connecting section is flush with the surface of the second connecting section. By arranging the first connecting section and the second connecting section, the first connecting section and the second connecting section can be accurately aligned, and the second connecting section deviates from the deformed cup bottom section, so that the connecting stability between the cup body part and the cup bottom part is higher, the sealing effect is better, and the cup is matched with a cup body with an arc bottom.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water cups, in particular to a water cup body. BACKGROUND

[0002] A water cup is a common water container in daily life, which generally comprises a cup body and a cup cover. The cup body is a container with an inner cavity, and the cup cover is connected to the cup body to seal the inner cavity.

[0003] Since the cup body is used to hold various liquids, it needs to be cleaned frequently to prevent the growth of bacteria or the generation of harmful substances. However, most of the current cup bodies are long and narrow, and the depth of the inner cavity is relatively deep, so how to clean it comprehensively is a technical problem. The current common method is to clean it with a cup brush. However, the conventional cup brush is difficult to clean the corner area with a small radius of curvature formed at the junction of the bottom wall and the side wall of the inner cavity, so the corner area is prone to dirt.

[0004] One solution in the prior art is to design the bottom of the cup body as a circular arc shape with a large radius of curvature to avoid the formation of a corner area. However, the vacuum cup cup body with a circular arc bottom liner is less common in the prior art because the production yield of the vacuum cup cup body with a circular arc bottom liner is lower than that of the conventional cup body, resulting in a significant increase in production cost. The reason is that this circular arc shape structure cannot be formed in one step by stretching or other processes, and two parts, a straight cup body part and a circular arc bottom part, need to be manufactured separately and then connected. The connection between the circular arc bottom part and the straight cup body part is not stable, which affects the sealing effect of the cup body and thus the heat preservation performance. Other connection technologies also have this problem. Therefore, how to improve the sealing performance of the connection between the circular arc bottom part and the straight cup body part is an important issue for applying the circular arc bottom structure to the field of vacuum cups. Practical new type content

[0005] The present application provides a water cup body that improves the sealing performance of the connection between the circular arc bottom and the cup body to some extent, making the water cup body easy to clean and good in sealing performance.

[0006] The technical solution adopted by the present application is:

[0007] The utility model provides a water cup body, including cup body, the cup body includes the shell and the inner bag fixedly connected with each other, the inner bag includes: cup body part, the top of cup body part is fixedly connected with the shell, the bottom of cup body part is provided with first connecting section, and first connecting section surrounds the axis of cup body, cup bottom part, cup bottom part includes the cup bottom section of concave circular arc and the second connecting section connected to the top of cup bottom section, and second connecting section surrounds the axis of cup body, wherein, first connecting section connects the second connecting section, and the second connecting section extends along the extension line of first connecting section, and the surface of second connecting section and the surface of second connecting section are flush with each other.

[0008] Because of being provided with first connecting section and second connecting section, and after the butt joint of first connecting section and second connecting section, both are aligned with each other and the surface of butt joint is flush, help to promote the welding effect, and the welding at the joint of two flush planes requires less technology, and both help to guarantee the sealing effect after connection. Specifically, the cup bottom section of circular arc is extruded in the process, and the thickness is often thinner than before forming, so the cup bottom section structure is more weak, and the thickness of second connecting section changes little, and the structure is more stable than cup bottom section, so the strength of second connecting section is better, and it is less prone to deformation by heat or cold than cup bottom section, so the first connecting section and the second connecting section are provided to avoid connecting at the weak structure of cup bottom section, thereby guaranteeing the connection reliability. In addition, the second connecting section extends along the extension line of first connecting section, so that the structure continuity of second connecting section and first connecting section is good, and stress concentration is not prone to occur, which also helps to improve the welding effect.

[0009] In summary, the first connecting section and the second connecting section are provided to improve the connection reliability of the cup body part and the cup bottom part, thereby guaranteeing the sealing property, improving the heat preservation effect of the vacuum cup with the cup bottom section of circular arc and the yield rate.

[0010] In summary, the first connecting section and the second connecting section are provided to improve the connection reliability of the cup body part and the cup bottom part, thereby guaranteeing the sealing property, improving the heat preservation effect of the vacuum cup with the cup bottom section of circular arc and the yield rate.

[0011] The vacuum kettle cover in the application also has the following additional technical features:

[0012] In an optional solution, the width of the cup bottom section gradually decreases from one end connected with the second connecting section to the other end, and the maximum width of the cup bottom section is equal to the width of the second connecting section; the height of the cup bottom section is H1, the maximum width of the cavity formed by the cup bottom section is L1, and 0.15≤H1 / L1≤0.9.

[0013] In other words, the inner diameter of the cup bottom section gradually decreases from top to bottom, so that the cup bottom section does not have a cleaning dead angle. Further limit the ratio of H1 and L1, so as to limit the size of the arc-shaped cavity formed by the cup bottom section, by limiting the maximum value of H1 / L1, so that the arc-shaped cavity is not too deep and too narrow to cause the cup brush to be difficult to extend into the cleaning, and also limit the minimum value of H1 / L1, so that the arc-shaped cavity is not shallow to produce a small circular angle area cleaning dead angle.

[0014] In an optional solution, the extension length of the second connecting section is H2, the height of the cup bottom section is H1, and 0.2≤H2 / H1≤0.7.

[0015] By limiting the ratio of H2 / H1, on the one hand, based on the stability of the connection and the requirement of avoiding the connection of the more fragile cup bottom section formed in the arc shape, the minimum extension of the second connecting section is set to make the second connecting section have enough reserved space for connecting the first connecting section, so that the connected part is not too close to the cup bottom section, effectively avoiding the adverse effects of the connection process on the cup bottom section; on the other hand, by limiting the maximum value of H2 / H1, the maximum proportion of the second connecting section along the axial length of the cup bottom section is limited, so as to ensure the bending resistance of the second connecting section and the shape stability, so as to ensure that the second connecting section maintains the predetermined extension direction, so as to ensure that the second connecting section can be aligned with the first connecting section to ensure the connection reliability of the two.

[0016] In an optional solution, the first connecting section and the second connecting section are parallel to the axis of the cup body.

[0017] That is, the first connecting section and the second connecting section are both straight cup shapes. This shape is convenient for fixing with a clamp tool, and then the first connecting section and the second connecting section can be precisely butt-jointed, so as to ensure that the subsequent connection process proceeds normally.

[0018] In an optional solution, the first connecting section and the second connecting section are welded and fixed, the extension length of the second connecting section is H2, and 3mm≤H2≤10mm.

[0019] In the case of having the first connecting section and the second connecting section, the welding is a stable connecting mode, since the first connecting section and the second connecting section are aligned with each other and are both parallel to the surface of the axis, thus the welding is actually performed on a cylindrical surface, and the welding on the cylindrical surface is a conventional technology, easy to implement and based on the existing technology, the yield can also be ensured. Based on the welding process, in order to avoid the influence on the weak part of the cup bottom section during welding, H2 is limited to be greater than or equal to 3 mm, so that there is enough space between the welding position and the cup bottom section, and the adverse effects of high temperature welding on the cup bottom section are avoided. And limit H2≤10mm, mainly limit the bending moment generated when the second connecting section is stressed, avoid the problem that the second connecting section is deformed obviously enough to affect the welding effect.

[0020] In an optional solution, the minimum distance between the cup bottom section and the shell is H3, H3≥7mm.

[0021] In the form of the outer surface of the cup bottom section being concave downward, and since it is changed to a circular arc shape, the thermal deformation of the cup bottom section will be more significant. Therefore, by limiting the distance between the cup bottom section and the shell, it is helpful to have enough space between the concave surface of the cup bottom section and the shell, and in the heating process such as vacuumizing, the existence of the avoiding space can avoid the cup bottom section from being in contact with the shell after thermal expansion, so as to avoid the deformation of the cup bottom section. Based on the verification, for a conventional size of the vacuum cup, only H3≥7mm needs to be met, so that in the conventional heat treatment condition, even if the cup bottom section is thermally expanded, it will not contact the shell.

[0022] In an optional solution, the bottom of the shell is provided with a gas extraction groove recessed to one side of the inner container, the gas extraction groove is provided with a gas extraction hole communicating with the vacuum cavity between the shell and the inner container, and the gas extraction groove is provided with a sealing element for sealing the gas extraction hole; wherein the closest part of the cup bottom section to the bottom of the shell is a first projection on the bottom of the shell, and the gas extraction groove deviates from the first projection.

[0023] In this scheme, the gas extraction groove and the lowest point of the cup bottom section are in a staggered form, which further avoids the problem that the cup bottom section is deformed when it is in contact with the wall of the gas extraction groove after thermal expansion. Moreover, this scheme also helps the gas extraction groove not to be in contact with the cup bottom section under the premise of having sufficient size.

[0024] In an optional solution, the distance between the first projection and the side wall of the shell 2 corresponding to one side of the gas extraction groove is L2, and the distance between the gas extraction groove and the first projection is L3, L3:L2≥0.25.

[0025] Based on experiments, in the scheme that the distance L3 and the radius L2 satisfy the condition L3:L2≥0.25, the probability of the cup bottom section being in contact with the wall of the gas extraction groove is very low, which is sufficient to ensure a high yield.

[0026] In an alternative, the minimum distance between the air extraction groove and the side wall of the cup body is L4, 10mm≤L4≤45mm.

[0027] Defining the distance between the air extraction groove and the bottom edge of the cup body helps to reduce the impact of the air extraction groove on the structural stability of the cup body, thereby reducing the probability of deformation of the cup body in a high-temperature environment during vacuum extraction. Specifically, by defining 10mm≤L4≤45mm, on the one hand, the air extraction groove has sufficient distance from the side wall of the shell, so that the concave structure of the air extraction groove has sufficient wall between the side walls of the shell to ensure the structural strength of the shell, and the shell will not be deformed during vacuum extraction; on the other hand, the maximum value of L4 is defined so that the air extraction groove is located at a position with sufficient distance between the bottom wall of the shell and the cup bottom section, preventing the air extraction groove from contacting the cup bottom section after expansion and deformation due to heating or pressure, ensuring the shape stability of the cup bottom section, and ensuring that the air extraction hole is not blocked by the cup bottom section to ensure the effect of vacuum extraction.

[0028] In an alternative, the outer surface of the bottom of the shell is provided with a groove, the air extraction groove is arranged at the bottom wall of the groove, and a scratch-resistant sheet is connected to the groove, covering the air extraction groove, and the thickness of the scratch-resistant sheet is less than the thickness of the groove, so that the scratch-resistant sheet is entirely accommodated in the groove.

[0029] In summary, this scheme helps to improve the connection and sealing between the cup bottom and the cup body by providing a second connecting section on the cup bottom section and a first connecting section that realizes butt joint with the second connecting section on the cup body, while avoiding the connection process on the relatively weak cup bottom section, thereby helping to ensure the yield and connection sealing. BRIEF DESCRIPTION OF DRAWINGS

[0030] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0031] Figure 1 A semi-sectional schematic view of a water cup body is provided.

[0032] List of components and reference numerals:

[0033] 1, inner container; 11, cup body; 111, first connecting section; 12, cup bottom; 120, lowest point of cup bottom section; 121, second connecting section; 122, cup bottom section; 2, shell; 3, air extraction groove; 4, scratch-resistant sheet; 40, groove.

[0034] 100, axis of the cup; L0, width of the cup body; L1, maximum width of the cavity formed by the cup bottom section; L2, distance between the first projection and the side wall of the shell on the side of the air extraction groove; L3, distance between the air extraction groove and the first projection; L4, minimum distance between the air extraction groove and the side wall of the cup; H1, height of the cup bottom section; H2, extension length of the second connecting section; H3, minimum distance between the cup bottom section and the shell; H4, extension length of the first connecting section. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0036] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0037] In addition, in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, or communication; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0040] Referring to Figure 1 , Figure 1 An embodiment of a water cup body is provided, which has a concave circular-arc-shaped cup bottom section 122 to eliminate the corner with a small radius of curvature at the cup bottom position, so as to facilitate the user to clean.

[0041] Specifically, the water cup body includes an outer shell 2 and an inner container 1, the inner container includes a cup body part 11 and a cup bottom part 12, the top of the cup body part 11 is fixedly connected with the outer shell 2, and the bottom of the cup body part 11 is connected with the cup bottom part 12; the cup bottom part 12 is in the form of a concave circular arc as a whole to eliminate the cleaning dead angle. Wherein, the bottom of the cup body part 11 is provided with a first connecting section 111 surrounding the axis 100 of the cup body, and the cup bottom part 12 includes a second connecting section 121 surrounding the axis 100 of the cup body, the bottom of the first connecting section 111 is fixedly connected with the top of the second connecting section 121, so as to fixedly connect the cup body part 11 and the cup bottom part 12. In addition, the cup bottom part 12 further includes a cup bottom section 122, the cup bottom section 122 is in the form of a concave circular arc, and the top of the cup bottom section 122 is connected with the bottom of the second connecting section 121.

[0042] The extension direction of the first connecting section 111 and the second connecting section 121 is the same, the extension track of the second connecting section 121 coincides with the extension line of the first connecting section 111, and the surface of the second connecting section 121 is flush with the surface of the first connecting section 111, that is, the first connecting section 111 and the second connecting section 121 are smoothly connected and form a continuous surface without obvious convex and concave parts when connected. By arranging the first connecting section 111 and the second connecting section 121, the cup body part 11 and the cup bottom part 12 can have a separate connecting section that is not affected by the shape of other parts and is used for connection. The first connecting section 111 and the second connecting section 121 can be designed to facilitate connection and fixation, for example, both are flat surfaces without protrusions or bends, to facilitate stable connection of the cup body part 11 and the cup bottom part 12. Moreover, the first connecting section 111 and the second connecting section 121 are used for mutual connection, and both can be designed to have a structure that is convenient for docking, for example, when other parts of the cup body part 11 and the cup bottom section 122 are designed to have a special shape, the first connecting section 111 and the second connecting section 121 remain in a form that is convenient for fixation and connection, for example, in the form of a cylindrical surface parallel to the axis 100 of the cup body, to avoid the problem that shape changes cause the connection stability of the first connecting section 111 and the second connecting section 121 to decrease.

[0043] It should be noted that the cup bottom section 122 has a large curvature radius overall, although the specific curvature radius is not required in this embodiment, but to avoid dead cleaning angles and facilitate cleaning, the curvature radius of the cup bottom section 122 cannot be too small in size, and the specific curvature radius parameter can refer to the size parameter of the existing circular arc bottom water cup.

[0044] Figure 1 In the illustrated embodiment, the cup bottom section 122 has a gradually decreasing inner diameter from top to bottom, and to avoid dead cleaning angles, the width of the cup bottom section 122 at the position connected to the second connecting section 121 is equal to the width of the second connecting section, that is, the surface of the cup bottom section 122 and the surface of the second connecting section 121 are smoothly connected, which is also conducive to maintaining the structural stability of the junction between the cup bottom section 122 and the second connecting section 121.

[0045] In addition, to avoid dead cleaning angles, the height of the cup bottom section is limited to H1, and the maximum width of the cup bottom section 122 is L1, 0.15≤H1 / L1≤0.9, so that the width-height ratio of the cup bottom section is appropriate, so as not to have a small curvature position for structural stability, thereby avoiding dead cleaning angles, and also not too deep to clean in place. For example, for the existing conventional straight body thermal cup, L1≈55mm, at this time, H1 is set to be about 8.25mm-49.5mm, for example, H1=15mm in the illustrated embodiment, and a water cup body with a size meeting the requirements can be obtained.

[0046] In Figure 1 In the embodiment shown, in view of the upwardly extending state of the second connecting section 121 relative to the cup bottom section 122, in order to make the second connecting section 121 have sufficient extension length so as to have sufficient space for setting the connecting structure, while also avoiding that the second connecting section 121 is too long and thus is prone to bending, in the embodiment, the extension length H2 of the second connecting section and the height H1 of the cup bottom section satisfy 0.15≤H2 / H1≤0.7. For example, in the embodiment, H1=15mm, based on the above ratio, H2=2.25mm-10.7mm, for example, in the embodiment, H2=3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., in the production process, the second connecting section 121 is less prone to bending, and the connecting effect is also better.

[0047] In the embodiment, the first connecting section 111 and the second connecting section 121 are both in the form parallel to the axis 100 of the cup body, which facilitates the clamp to stably clamp the first connecting section 111 and the second connecting section 121, so as to avoid deformation of the first connecting section 111 and the second connecting section 121 due to the problem of the clamp tooling, thereby ensuring the connection reliability.

[0048] In the embodiment shown as Figure 1 In the embodiment, the part of the cup body part 11 other than the first connecting section 111 also maintains the state parallel to the axis 100 of the cup body, that is, the embodiment is a straight cup, L1=L0, the diameter of the cup body part. In other embodiments, the part of the cup body part 11 other than the first connecting section 111 can not be in the form parallel to the cup body, for example, the part of the cup body part 11 other than the first connecting section 111 is in the form of a tapered cup or a large-belly cup that protrudes to the left and right sides, etc., which is not specifically limited here, as long as the first connecting section 111 and the second connecting section 121 are parallel to the axis 100 of the cup body.

[0049] Optionally, the first connecting section 111 and the second connecting section 121 are fixedly connected by welding. To facilitate welding construction, the extension length H2 of the second connecting section is set to satisfy 3mm≤H2≤10mm, for example, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm and 10mm, etc., and the illustrated embodiment sets H2=5mm. Similarly, the extension length H4 of the first connecting section is set to satisfy 3mm≤H4≤10mm, for example, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm and 10mm, etc., and the illustrated embodiment sets H4=5mm, which is equal to the second connecting section 121. The length of the first connecting section 111 and the second connecting section 121 is limited so that the first connecting section 111 and the second connecting section 121 have sufficient space for welding construction, so as to avoid deformation of other parts (for example, deformation of the cup bottom section 122) caused by high temperature welding, and at the same time, the length of the first connecting section 111 and the second connecting section 121 is not too long to cause the two to bend easily under stress.

[0050] In addition, considering that the vacuumizing process needs to be carried out at high temperature, the water cup body may be deformed by thermal expansion at high temperature, and the concave cup bottom section 122 may move downward obviously after expansion, which has the risk of abutting against the bottom of the shell 2, thereby possibly causing deformation of the cup bottom section 122 and losing the easy-to-clean effect. Based on this, the minimum distance H3 between the cup bottom section 122 and the bottom of the shell 2 is set to be H3≥7mm, for example, H3=7mm, 8mm, 9mm, 10mm, etc. Based on this design, under the general vacuumizing condition of about 1000℃, the problem of the cup bottom section 122 abutting against the bottom of the shell 2 after deformation can be basically avoided, so that the cup bottom section 122 will not be severely deformed by extrusion force even after thermal deformation.

[0051] For a general vacuum cup, an air extraction groove 3 is often arranged at the bottom of the shell 2, and an air extraction hole is arranged in the air extraction groove 3, which communicates the vacuum cavity between the shell 2 and the inner container 1. In production, the air extraction hole is used to extract air from the vacuum cavity, so that the vacuum cavity is maintained at a certain vacuum degree. After air extraction is completed, a part of the sealing member is filled in the air extraction groove 3 to seal the air extraction hole.

[0052] Since the air extraction groove 3 is in the form of upward concave and the cup bottom section 122 is in the form of downward concave, the cup bottom section 122 is more likely to contact the wall of the air extraction groove 3 after thermal expansion deformation. Based on this, the setting position of the air extraction groove 3 meets that the lowest point 120 of the cup bottom section is in the first projection in the orthographic projection of the bottom of the shell 2, and the air extraction groove 3 deviates from the first projection, that is, the air extraction groove 3 deviates from the position on the bottom of the shell 2 closest to the lowest point 120 of the cup bottom section, so that there is enough space between the air extraction groove 3 and the cup bottom section 122 to accommodate the deformation amount of the cup bottom section 122 and the wall of the air extraction groove 3 after thermal expansion, further avoiding the risk of deformation of the cup bottom section 122 against the shell 2, and also avoiding the risk of the air extraction hole being blocked by the wall of the air extraction groove 3 against the cup bottom section 122.

[0053] Specifically, referring to Figure 1 , the distance between the first projection and the side wall of the shell 2 corresponding to one side of the air extraction groove 3 is L2, and for Figure 1 the embodiment, the side wall of the shell 2 corresponding to one side of the air extraction groove 3 is the side wall of the right side of the shell 2; the distance between the air extraction groove 3 and the first projection is L3, and in the embodiment, the first projection is located on the axis 100 of the cup body, so L3 is also equal to the distance between the air extraction groove 3 and the axis 100 of the cup body, and when the lowest point 120 of the cup bottom section is located at other positions, it only needs to be set correspondingly, and here it will not be illustrated for each case. For L2 and L3, L3: L2≥0.25, for example, L3: L2=0.25, 0.4, 0.5, 0.6, 0.75, 0.8, etc., so that there is enough distance between the air extraction groove 3 and the lowest point 120 of the cup bottom section.

[0054] Considering that the air extraction groove 3 may affect the shape of the side wall of the shell 2 when it is too close to the side wall of the shell 2, the minimum distance between the air extraction groove 3 and the side wall of the cup body is limited to L4, 10mm≤L4≤45mm. On the one hand, L4≥10mm, for example, L4=10mm, 11mm, 15mm, 20mm, etc., the air extraction groove 3 has enough distance from the side wall of the cup body, and the air extraction groove 3 has little effect on the shape of the side wall of the cup body, and basically there is no problem of deformation of the side wall of the cup body; on the other hand, L4≤45mm, that is, the air extraction groove 3 will not be too far away from the side wall of the cup body, and in the case that the cup bottom section 122 is in the form of downward concave arc, the air extraction groove 3 can be located at a position close to the side wall of the cup body with a larger space, so as to ensure the air extraction effect, and the vacuum degree and air extraction efficiency of the vacuum cavity can meet the needs.

[0055] Referring to Figure 1The bottom outer surface of the shell 2 is further provided with a groove 40, the air suction groove 3 is arranged on the bottom wall of the groove 40, and the anti-scratch sheet 4 is further connected in the groove 40, the anti-scratch sheet 4 covers the air suction groove 3 to provide protection for the sealing element in the air suction groove 3. The thickness of the anti-scratch sheet 4 is less than the depth of the groove 40, so that the anti-scratch sheet 4 is accommodated in the groove 40 as a whole, which not only maximally reduces the possibility of the anti-scratch sheet 4 contacting external objects, but also avoids the problem of the anti-scratch sheet 4 protruding outward to cause unstable placement of the cup body.

[0056] In addition, the places not mentioned in the application can be realized by using or referring to the existing technology.

[0057] Each of the embodiments in the specification is described in a progressive manner, and each optional embodiment can be used in a superimposed manner without interfering with each other.

[0058] The above only describes the embodiments of the application and is not intended to limit the application. Those skilled in the art can make various modifications and changes to the application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application shall be included in the scope of the claims of the application.

Claims

1. A water cup body comprising a cup body, the cup body comprising an outer shell and an inner liner fixedly connected to each other, characterized in that, The inner container comprises: a cup body part, a top of the cup body part is fixedly connected with the outer shell, and a bottom of the cup body part is provided with a first connecting section which encircles an axis of the cup body; a cup bottom part, the cup bottom part comprises a cup bottom section in a concave circular arc shape and a second connecting section connected to a top of the cup bottom section, the second connecting section encircles the axis of the cup body; wherein the first connecting section connects the second connecting section, the second connecting section extends along an extension line of the first connecting section, and surfaces of the first connecting section and the second connecting section are flush with each other.

2. The water cup body of claim 1, wherein, A width of the cup bottom section gradually decreases from one end connected with the second connecting section to the other end, and a maximum width of the cup bottom section is equal to a width of the second connecting section. A height of the cup bottom section is H1, a maximum width of a cavity formed by the cup bottom section is L1, and 0.15≤H1 / L1≤0.

9.

3. The water cup body of claim 1, wherein, An extension length of the second connecting section is H2, the height of the cup bottom section is H1, and 0.2≤H2 / H1≤0.

7.

4. The water cup body of claim 1, wherein, The first connecting section and the second connecting section are parallel to the axis of the cup body.

5. The water cup body of claim 1, wherein, The first connecting section and the second connecting section are fixedly welded, the extension length of the second connecting section is H2, and 3mm≤H2≤10mm.

6. The water cup body of claim 1, wherein, A minimum distance between the cup bottom section and the outer shell is H3, and H3≥7mm.

7. The water cup body according to any one of claims 1 to 6, wherein, A bottom of the outer shell is provided with a suction groove recessed to one side of the inner container, the suction groove is provided with a suction hole communicating with a vacuum cavity between the outer shell and the inner container, and a sealing element for sealing the suction hole is arranged in the suction groove. Wherein, a normal projection of a part closest to the bottom of the outer shell of the cup bottom section on the bottom of the outer shell is a first projection, and the suction groove deviates from the first projection.

8. The water cup body of claim 7, wherein a distance between the first projection and a side wall of the outer shell corresponding to one side of the suction groove is L2, a distance between the suction groove and the first projection is L3, and L3:L2≥0.

25.

9. The water cup body of claim 8, wherein a minimum distance between the suction groove and a side wall of the cup body is L4, and 10mm≤L4≤45mm.

10. The water cup body of claim 7, wherein, An outer surface of the bottom of the outer shell is provided with a groove, the suction groove is arranged at a bottom wall of the groove, a scratch-proof sheet is connected to the groove, the scratch-proof sheet covers the suction groove, and a thickness of the scratch-proof sheet is less than a thickness of the groove, so that the scratch-proof sheet is accommodated in the groove as a whole.

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