Storage tank
By adopting the main sealing section and main pressure-bearing section with an arc-shaped structure in the storage tank, the problem of the decreasing sealing effect of the folded edge sealing structure under the axial force is solved, and a better sealing effect is achieved.
Patent Information
- Application Number
- CN202422488052.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-22
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-15
AI Technical Summary
When the folded edge sealing structure of the existing storage tank is subjected to axial force, gaps are prone to occur between adjacent folded layers, resulting in a decrease in sealing effect.
The main sealing section and the main pressure bearing section adopt an arc-shaped structure. The inner concave arc surface of the main sealing section faces the deformation space. The main sealing section is closely in contact with the main pressure bearing section, increasing the contact area and improving the sealing effect.
Under the axial force, the main sealing section of the arc-shaped structure and the main pressure bearing section increase the contact area, enhance the sealing effect, and prevent water leakage.
Smart Images
Figure CN223132992U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of storage tanks, in particular to storage tanks. Background Art
[0002] Storage tanks are widely used, such as storing food in daily life, storing medicines in laboratories, etc. In the production process of storage tanks, in order to reduce process requirements and production costs, the cylinder body and the tank bottom are manufactured separately, and then the tank bottom is installed at the bottom of the cylinder body.
[0003] In order to ensure the sealing performance and prevent leakage of liquid storage substances, the bottom end of the cylinder body needs to be hermetically connected to the periphery of the tank bottom. In the prior art, usually, the edge of the end of the cylinder body and the edge of the periphery of the tank bottom are folded and stacked with each other, and then the edge of the end of the cylinder body and the edge of the periphery of the tank bottom are pressed together by a hydraulic press or a punching press to achieve sealing.
[0004] However, each folding layer of the existing folding edge structure is flat, and several flat folding layers are stacked and sealed in sequence. When the cylinder body is subjected to an axial force, such as when the port of the cylinder body is curled, the probability of a gap appearing between adjacent two folding layers increases, and the sealing effect decreases. Content of the Utility Model
[0005] The purpose of the utility model is to provide a storage tank, in which the main sealing section is set as an arc structure to ensure the sealing effect between the main sealing section and the main pressure-bearing section and reduce water leakage.
[0006] To achieve the above object, the utility model adopts the following technical solutions:
[0007] A storage tank, comprising a tank cylinder and a tank bottom. A first curling edge is provided at the bottom end of the tank cylinder, and a second curling edge is provided at the periphery of the tank bottom. The first curling edge passes through between the root and the end of the second curling edge and extends into the winding space of the second curling edge, and the second curling edge passes through between the root and the end of the first curling edge and extends into the winding space of the first curling edge. A deformation space is defined between the end of the first curling edge and the end of the second curling edge.
[0008] One of the first curling edge and the second curling edge is provided with a main sealing section, and the other is provided with a main pressure-bearing section. The main sealing section is an arc structure, and the concave arc surface of the main sealing section faces the deformation space.
[0009] One end of the main sealing section is the root of one curling edge, the other end of the main sealing section is in close contact with the main pressure-bearing section, and one end of the main pressure-bearing section is the root of the other curling edge.
[0010] As an optional technical solution, the first curl is provided with the main sealing section, one end of which is the root of the first curl, and the second curl is provided with the main pressure-bearing section, one end of which is the root of the second curl.
[0011] As an optional technical solution, the second curl is provided with the main sealing section, one end of which is the root of the second curl, and the first curl is provided with the main pressure-bearing section, one end of which is the root of the first curl.
[0012] As an optional technical solution, there is line contact or surface contact between the main sealing section and the main pressure-bearing section.
[0013] As an optional technical solution, the curled edge provided with the main pressure-bearing section is also provided with a second sealing section, wherein the second sealing section is located between the main sealing section and the deformation space, and the second sealing section is an arc-shaped structure, wherein the concave arc surface of the second sealing section faces the deformation space, and the end of the second sealing section is the end of the curled edge, and the end of the second sealing section is tightly abutted against the concave arc surface of the main sealing section.
[0014] As an optional technical solution, the end of the second sealing section extends to a side of the main sealing section away from the main pressure-bearing section.
[0015] As an optional technical solution, the curling edge provided with the main sealing section is also provided with a third sealing section, the deformation space is located between the third sealing section and the second sealing section, the third sealing section is an arc-shaped structure, the concave arc surface of the third sealing section faces the deformation space, the end of the third sealing section is the end of the curling edge, the main pressure-bearing section and the second sealing section are connected by a transition section, and the third sealing section is tightly abutted against the transition section.
[0016] As an optional technical solution, the end of the third sealing segment extends to the transition portion between the second sealing segment and the transition segment, and the end of the third sealing segment tightly abuts against the transition portion between the second sealing segment and the transition segment.
[0017] As an optional technical solution, the transition portion is in tight contact with the root of the curled edge where the main sealing section is provided.
[0018] As an optional technical solution, a port curling edge is provided at the top end of the can.
[0019] Beneficial effects of the utility model:
[0020] The storage tank provided by the utility model comprises a tank cylinder and a tank bottom. A first crimping edge is arranged at the bottom end of the tank cylinder, and a second crimping edge is arranged at the periphery of the tank bottom. The first crimping edge passes through between the root and the end of the second crimping edge and extends into the winding space of the second crimping edge, and the second crimping edge passes through between the root and the end of the first crimping edge and extends into the winding space of the first crimping edge. A deformation space is defined between the end of the first crimping edge and the end of the second crimping edge; one of the first crimping edge and the second crimping edge is provided with a main sealing section, and the other is provided with a main pressure-bearing section. The main sealing section is of an arc structure, and the concave arc surface of the main sealing section faces the deformation space; one end of the main sealing section is the root of one crimping edge, the other end of the main sealing section is in close contact with the main pressure-bearing section, and one end of the main pressure-bearing section is the root of the other crimping edge.
[0021] Crimping edges are arranged at the bottom end of the tank cylinder and the periphery of the tank bottom. The crimping edge of the tank cylinder and the crimping edge of the tank bottom extend into each other's winding spaces, and one of the crimping edges is provided with a main sealing section of an arc structure, and the concave arc surface of the main sealing section faces the deformation space. When an axial acting force is applied to the tank cylinder, the main sealing section of the arc structure deforms under force, the interaction force between the main sealing section and the main pressure-bearing section increases, and the contact area increases, which can ensure the sealing effect and prevent water leakage. Description of the Drawings
[0022] Figure 1 is a structural change diagram of the sealing position of the tank cylinder and the tank bottom of the utility model during the manufacturing process;
[0023] Figure 2 is an assembly drawing of the storage tank, the core mold, the upper female mold and the curling line mold of the utility model;
[0024] Figure 3 is Figure 2 a partial enlarged view of position A in
[0025] Figure 4 is a schematic diagram of the connection structure between the tank cylinder and the tank bottom of the utility model Figure 1 ;
[0026] Figure 5 is a schematic diagram of the connection structure between the tank cylinder and the tank bottom of the utility model Figure 2 ;
[0027] Figure 6 is a schematic diagram of the connection structure between the tank cylinder and the tank bottom of the utility model Figure 3 ;
[0028] Figure 7 is a schematic diagram of the structure of the storage tank of the utility model.
[0029] In the figure:
[0030] 100. Deformation space; 101. First sealing area; 102. Second sealing area; 103. Third sealing area; 104. Fourth sealing area; 105. Fifth sealing area; 200. Die core; 300. Upper female die; 400. Hemming line die; 500. Lower die base;
[0031] 1. Can body; 11. First double seam; 111. Main sealing section; 112. Third sealing section; 12. Cylindrical body; 13. Port double seam;
[0032] 2. Can bottom; 21. Second double seam; 211. Main pressure-bearing section; 212. Second sealing section; 213. Transition section; 22. Bottom body. Detailed implementation mode
[0033] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.
[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0035] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the" and "on the" second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below the" and "under the" second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.
[0036] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0037] As Figures 1 to 7 shown, the storage tank provided in this embodiment includes a tank barrel 1 and a tank bottom 2. A first curled edge 11 is provided at the bottom end of the tank barrel 1, and a second curled edge 21 is provided at the periphery of the tank bottom 2. The first curled edge 11 passes through between the root and the end of the second curled edge 21 and extends into the winding space of the second curled edge 21. The second curled edge 21 passes through between the root and the end of the first curled edge 11 and extends into the winding space of the first curled edge 11. A deformation space 100 is defined between the end of the first curled edge 11 and the end of the second curled edge 21. One of the first curled edge 11 and the second curled edge 21 is provided with a main sealing section 111, and the other is provided with a main pressure-bearing section 211. The main sealing section 111 is an arc-shaped structure, and the concave arc surface of the main sealing section 111 faces the deformation space 100. One end of the main sealing section 111 is the root of one curled edge, the other end of the main sealing section 111 is in close contact with the main pressure-bearing section 211, and one end of the main pressure-bearing section 211 is the root of the other curled edge.
[0038] Specifically, curled edges are provided at the bottom end of the tank barrel 1 and the periphery of the tank bottom 2. The curled edge of the tank barrel 1 and the curled edge of the tank bottom 2 extend into each other's winding spaces, and one of the curled edges is provided with a main sealing section 111 with an arc-shaped structure, and the concave arc surface of the main sealing section 111 faces the deformation space 100. When an axial force is applied to the tank barrel 1, the arc-shaped main sealing section 111 deforms under force, the interaction force between the main sealing section 111 and the main pressure-bearing section 211 increases, the contact area increases, and the sealing effect is improved.
[0039] During the production of the storage tank, the tank barrel 1 and the tank bottom 2 are independently manufactured. As Figure 1 shown in the view at position a, first, the tank bottom 2 and the mold core 200 are installed inside the tank barrel 1. The mold core 200 abuts against the side wall of the tank barrel 1 and the bottom wall of the tank bottom 2. The tank barrel 1, the tank bottom 2, and the mold core 200 are placed between the upper female mold 300 and the lower mold base 500. As Figure 1 shown in the view at position b, the upper female mold 300 is pressed down against the lower mold base 500. The upper female mold 300 deforms the port of the tank barrel 1 and the peripheral edge of the tank bottom 2 to form arc-shaped curled edges. The curled edge of the tank barrel 1 and the curled edge of the tank bottom 2 wind around each other. As Figure 1 shown in the view at position c, the tank barrel 1 forms the first curled edge 11, the tank bottom 2 forms the second curled edge 21, and a sealed connection is achieved between the tank barrel 1 and the tank bottom 2. AsFigure 2 As shown in the figure, place the can body 1, the can bottom 2 and the core 200 between the upper female die 300 and the curling die 400, lift the curling die 400 against the upper female die 300, and the curling die 400 causes the top end of the can body 1 to form a port curl 13 by curling. During this process, the can body 1 is subjected to an axial force. Since the main sealing section 111 is an arc-shaped structure and the concave arc surface of the main sealing section 111 faces the deformation space 100, the main sealing section 111 deforms and presses against the main pressure-bearing section 211, and the contact area between the main sealing section 111 and the main pressure-bearing section 211 increases, without affecting the sealing effect of the first curl 11 and the second curl 21, preventing water leakage.
[0040] Optionally, the can body 1 includes a can body main body 12, the first curl 11 is arranged at the bottom end of the can body main body 12, and the port curl 13 is arranged at the top end of the can body main body 12.
[0041] Optionally, the can bottom 2 includes a bottom main body 22, and the second curl 21 is arranged on the circumference of the bottom main body 22. The core 200 abuts against the main pressure-bearing section 111 and the bottom main body 22 inside the can body 1.
[0042] As Figure 3 and Figure 4 shown, in some embodiments, the first curl 11 is provided with a main sealing section 111, one end of the main sealing section 111 is the root of the first curl 11, the second curl 21 is provided with a main pressure-bearing section 211, and one end of the main pressure-bearing section 211 is the root of the second curl 21. The concave arc surface of the main sealing section 111 faces the top end port of the can body 1.
[0043] As Figure 5 and Figure 6 shown, in some other embodiments, the second curl 21 is provided with a main sealing section 111, one end of the main sealing section 111 is the root of the second curl 21, the first curl 11 is provided with a main pressure-bearing section 211, and one end of the main pressure-bearing section 211 is the root of the first curl 11. The concave arc surface of the main sealing section 111 faces the central axis of the can body 1.
[0044] Optionally, the contact between the main sealing section 111 and the main pressure-bearing section 211 is a line contact or a surface contact. In some embodiments, the contact between the main sealing section 111 and the main pressure-bearing section 211 is a line contact. When the axial force applied to the can body 1 reaches a preset value, the main sealing section 111 deforms, and the contact between the main sealing section 111 and the main pressure-bearing section 211 becomes a surface contact. In some other embodiments, the contact between the main sealing section 111 and the main pressure-bearing section 211 is a surface contact. When the axial force applied to the can body 1 reaches a preset value, the contact area between the main sealing section 111 and the main pressure-bearing section 211 increases.
[0045] The contact area between the main sealing section 111 and the main pressure-bearing section 211 is the first sealing area 101 , and the first sealing area 101 is the core sealing area of the tank barrel 1 and the tank bottom 2 .
[0046] In this embodiment, the materials of the can body 1 and the can bottom 2 are both tinplate.
[0047] Optionally, the curling edge with the main pressure-bearing section 211 is also provided with a second sealing section 212, and the second sealing section 212 is located between the main sealing section 111 and the deformation space 100. The second sealing section 212 is an arc-shaped structure, and the concave arc surface of the second sealing section 212 faces the deformation space 100. The end of the second sealing section 212 is the end of the curling edge, and the end of the second sealing section 212 is tightly abutted against the concave arc surface of the main sealing section 111.
[0048] The direction of the concave arc surface of the second sealing segment 212 is the same as that of the concave arc surface of the main sealing segment 111. When the curling wire mold 400 is close to the upper die 300, the second sealing segment 212 is also deformed, and the end of the second sealing segment 212 is tightly abutted against the concave arc surface of the main sealing segment 111. The closer the curling wire mold 400 is to the upper die 300, the greater the deformation of the second sealing segment 212, the greater the interaction force between the end of the second sealing segment 212 and the concave arc surface of the main sealing segment 111, and the better the sealing effect.
[0049] The contact area between the end of the second sealing section 212 and the concave arc surface of the main sealing section 111 is the second sealing area 102 , and the second sealing area 102 is the auxiliary sealing area of the tank barrel 1 and the tank bottom 2 .
[0050] In this embodiment, the end of the second sealing section 212 extends to the side of the main sealing section 111 away from the main pressure-bearing section 211. The end of the second sealing section 212 abuts against the side of the main sealing section 111 away from the main pressure-bearing section 211. When the second sealing section 212 is deformed, it has the effect of pressing the main sealing section 111 toward the main pressure-bearing section 211, further strengthening the sealing effect between the main sealing section 111 and the main pressure-bearing section 211. In some other embodiments, the end of the second sealing section 212 does not contact the side of the main sealing section 111 away from the main pressure-bearing section 211.
[0051] Optionally, the curling edge with the main sealing section 111 is also provided with a third sealing section 112, the deformation space 100 is located between the third sealing section 112 and the second sealing section 212, the third sealing section 112 is an arc-shaped structure, the concave arc surface of the third sealing section 112 faces the deformation space 100, the end of the third sealing section 112 is the end of the curling edge, the main pressure-bearing section 211 and the second sealing section 212 are connected by a transition section 213, and the third sealing section 112 is tightly abutted against the transition section 213.
[0052] The concave arc surface of the third sealing section 112 faces the concave arc surface of the second sealing section 212. When the curling line die 400 approaches the upper female die 300, the third sealing section 112 also deforms. The closer the curling line die 400 is to the upper female die 300, the greater the deformation of the third sealing section 112, and the greater the interaction force between the third sealing section 112 and the transition section 213, and the better the sealing effect.
[0053] The contact area between the third sealing section 112 and the transition section 213 is the third sealing area 103, and the third sealing area 103 is the auxiliary sealing area of the can body 1 and the can bottom 2.
[0054] In this embodiment, the end of the third sealing section 112 extends to the transition part between the second sealing section 212 and the transition section 213, and the end of the third sealing section 112 tightly abuts against the transition part between the second sealing section 212 and the transition section 213.
[0055] The contact area between the end of the third sealing section 112 and the transition part is the fourth sealing area 104, and the fourth sealing area 104 is the auxiliary sealing area of the can body 1 and the can bottom 2.
[0056] Optionally, the transition part tightly abuts against the root of the curled edge provided with the main sealing section 111.
[0057] The contact area between the transition part and the root of the curled edge provided with the main sealing section 111 is the fifth sealing area 105, and the fifth sealing area 105 is the auxiliary sealing area of the can body 1 and the can bottom 2. Since the end of the third sealing section 112 tightly abuts against the transition part between the second sealing section 212 and the transition section 213, when the third sealing section 112 deforms, it can promote the transition part to press against the root of the curled edge provided with the main sealing section 111, thereby improving the sealing effect of the fifth sealing area 105.
[0058] In this embodiment, a port curled edge 13 is provided at the top end of the can body 1.
[0059] As shown in the following table, there is always a water leakage problem in the existing folding edge sealing structure, while the storage tank of this embodiment is provided with five sealing areas (multi - area interception structure) which can effectively prevent water leakage.
[0060]
[0061]
[0062] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.
Claims
1. Storage tank, characterized in that, It includes a can body (1) and a can bottom (2). A first curled edge (11) is provided at the bottom end of the can body (1), and a second curled edge (21) is provided at the periphery of the can bottom (2). The first curled edge (11) passes through between the root and the end of the second curled edge (21) and extends into the winding space of the second curled edge (21), and the second curled edge (21) passes through between the root and the end of the first curled edge (11) and extends into the winding space of the first curled edge (11). A deformation space (100) is defined between the end of the first curled edge (11) and the end of the second curled edge (21). One of the first curled edge (11) and the second curled edge (21) is provided with a main sealing section (111), and the other is provided with a main pressure-bearing section (211). The main sealing section (111) is of an arc structure, and the concave arc surface of the main sealing section (111) faces the deformation space (100). One end of the main sealing section (111) is the root of one curled edge, the other end of the main sealing section (111) is in close contact with the main pressure-bearing section (211), and one end of the main pressure-bearing section (211) is the root of the other curled edge.
2. The storage tank according to claim 1, characterized in that The first curled edge (11) is provided with the main sealing section (111), one end of the main sealing section (111) is the root of the first curled edge (11), the second curled edge (21) is provided with the main pressure-bearing section (211), and one end of the main pressure-bearing section (211) is the root of the second curled edge (21).
3. The storage tank according to claim 1, characterized in that, The second curled edge (21) is provided with the main sealing section (111), one end of the main sealing section (111) is the root of the second curled edge (21), the first curled edge (11) is provided with the main pressure-bearing section (211), and one end of the main pressure-bearing section (211) is the root of the first curled edge (11).
4. The storage tank according to claim 1, characterized in that, The main sealing section (111) and the main pressure-bearing section (211) are in line contact or surface contact.
5. The storage tank according to any one of claims 1-4, characterized in that, The curled edge provided with the main pressure-bearing section (211) is further provided with a second sealing section (212). The second sealing section (212) is located between the main sealing section (111) and the deformation space (100). The second sealing section (212) is of an arc structure, the concave arc surface of the second sealing section (212) faces the deformation space (100), the end of the second sealing section (212) is the end of the curled edge, and the end of the second sealing section (212) is in close contact with the concave arc surface of the main sealing section (111).
6. The storage tank according to claim 5, characterized in that, The end of the second sealing section (212) extends to the side of the main sealing section (111) away from the main pressure-bearing section (211).
7. The storage tank according to claim 5, characterized in that, The crimping edge provided with the main sealing section (111) is further provided with a third sealing section (112). The deformation space (100) is located between the third sealing section (112) and the second sealing section (212). The third sealing section (112) is an arc-shaped structure. The concave arc surface of the third sealing section (112) faces the deformation space (100). The end of the third sealing section (112) is the end of the crimping edge. The main pressure-bearing section (211) and the second sealing section (212) are connected by a transition section (213). The third sealing section (112) is in close contact with the transition section (213).
8. The storage tank according to claim 7, characterized in that, The end of the third sealing section (112) extends to the transition part between the second sealing section (212) and the transition section (213). The end of the third sealing section (112) is in close contact with the transition part between the second sealing section (212) and the transition section (213).
9. The storage tank according to claim 8, characterized in that, The transition part is in close contact with the root of the crimping edge provided with the main sealing section (111).
10. The storage tank according to any one of claims 1-4, characterized in that, The top end of the can body (1) is provided with a port crimping edge (13).