Constant-torque bottle cap
By setting the torque scale and pointing protrusion on the bottle cap, the problem of difficult to control the tightness of the bottle cap in the prior art is solved, and a higher tightening control and better sealing effect are achieved, which extends the service life.
Patent Information
- Application Number
- CN202422023610.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The tightening degree of existing plastic bottle caps is difficult to accurately control, resulting in looser or tighter caps and bottles behind the screw caps, which affects the sealing effect and service life.
A fixed torque bottle cap is designed, using a combination of torque scale and pointing protrusion. By viewing the torque scale value pointing toward the top of the protrusion, the current tightening degree of the cover body is judged, thereby improving the user's control.
It improves the user's control over the tightening degree of the bottle cap, reduces the chance of loose or tightening of the lid and the bottle body after the screw cap, ensures the sealing effect of the liquid in the bottle, and extends the service life of the cap.
Smart Images
Figure CN223002020U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of bottle caps, and in particular to a constant-torque bottle cap. Background Art
[0002] With the continuous development of the social economy and the increasing improvement of the scientific and technological level, the manufacturing industry in our country is also booming. As a blow-molded product made of materials such as polyethylene or polypropylene and added with various organic solvents, plastic bottles can package liquid objects and play an important role in people's lives and industries.
[0003] Regarding the above-related technologies, since existing plastic bottles generally include a bottle body and a cap body, and the cap body is threadedly connected to the bottle body. When a user tightens the cap body onto the bottle body, the user can only judge the tightening degree of the cap body onto the bottle body by the degree of difficulty when rotating the cap body. However, different users feel different degrees of difficulty for the same tightening degree, which makes it difficult for the user to control the tightening degree of the cap body. As a result, after screwing on the cap, the cap body and the bottle body are likely to be too loose or too tight, so it needs to be improved. Utility Model Content
[0004] In order to increase the user's control over the tightening degree of the cap body, this application provides a constant-torque bottle cap.
[0005] A constant-torque bottle cap provided by this application adopts the following technical solutions:
[0006] A constant-torque bottle cap includes a cap body, the cap body is used to be tightened onto a bottle body, and a number of torque scales are further provided on the circumferential wall at the bottom end of the cap body. The scale values of the torque scales increase sequentially along the arc direction of the circumferential wall of the cap body. A pointing protrusion is further provided on the top end of the bottle body, and the top end of the pointing protrusion extends vertically upward and is close to the torque scales.
[0007] By adopting the above technical solutions, compared with the prior art, where the user can only judge the tightening degree of the cap body onto the bottle body by the degree of difficulty when rotating the cap body, resulting in a low degree of control of the user over the tightening degree of the cap body. In this application, through the settings of the torque scales and the pointing protrusion, the user only needs to check the scale value of the torque scale pointed to by the top end of the pointing protrusion to know the current torque when screwing in. And the greater the tightening degree of the cap body, the greater the torque required for the user to continue tightening the cap body. Therefore, the user can judge the current tightening degree of the cap body according to the size of the scale value pointed to by the top end of the pointing protrusion, thereby improving the user's control over the tightening degree of the cap body, reducing the probability of the cap body and the bottle body being too loose or too tight after screwing on the cap, effectively ensuring the sealing degree of the liquid in the bottle body, and at the same time ensuring the service life of the cap body.
[0008] Preferably, an annular inner plug is further provided on the inner top wall of the cover body. The top end of the annular inner plug is connected to the inner top wall of the cover body, and a sealing portion extends downward from the bottom end of the annular inner plug. The bottom end of the sealing portion is inclined toward the axis of the cover body and abuts against the inner wall of the bottle mouth of the bottle body.
[0009] By adopting the above technical solution, the arrangement of the annular inner plug enables the inclined portion at the bottom end of the sealing portion to abut against the inner side wall of the bottle mouth of the bottle body when the cover body is screwed tightly onto the bottle mouth of the bottle body, thereby sealing between the cover body and the bottle body, reducing the probability of the liquid in the bottle body leaking out from the gap between the cover body and the bottle body, and further increasing the sealing effect of the cover body of the present application on the bottle body.
[0010] Preferably, an extension portion extends downward from the top end of the annular inner plug. The bottom end of the extension portion is inclined away from the axis of the cover body and abuts against the top end of the bottle mouth of the bottle body.
[0011] By adopting the above technical solution, the arrangement of the extension portion enables the inner side wall at the bottom of the extension portion to abut against the outer side wall of the bottle mouth of the bottle body, thereby further sealing between the cover body and the bottle body, reducing the probability of the liquid in the bottle body leaking out from the gap between the cover body and the bottle body, and increasing the sealing effect of the cover body of the present application on the bottle body.
[0012] Preferably, a butting ring is further provided on the inner top wall of the cover body. The butting ring is located on the side of the bottle mouth of the bottle body away from the annular inner plug. The inner side wall at the bottom of the butting ring abuts against the outer wall of the top end of the bottle mouth of the bottle body, and the top of the butting ring abuts against the top end of the extension portion.
[0013] By adopting the above technical solution, the arrangement of the butting ring enables the top of the butting ring to abut against the top end of the extension portion, so that the liquid between the butting ring and the extension portion can enter the gap between the butting ring and the extension portion, thereby reducing the probability of the liquid flowing into the gap between the butting ring and the top end of the bottle mouth of the bottle body, and further reducing the probability of the liquid flowing out of the bottle body, effectively increasing the sealing effect of the cover body of the present application on the bottle body.
[0014] Preferably, the outer wall at the bottom end of the sealing portion protrudes toward the inner wall of the bottle mouth of the bottle body and abuts against the inner wall of the bottle mouth of the bottle body. A plurality of reinforcing ribs are further provided in the recess inside the bottom end of the sealing portion.
[0015] By adopting the above technical solution, the convex setting at the bottom end of the sealing part can ensure the abutting effect of the sealing part on the inner side wall of the bottle mouth of the bottle while reducing the raw materials required for producing the cover body of the present application, thereby ensuring the sealing effect on the bottle; at the same time, the existence of the reinforcing rib can also increase the strength of the bottom end of the sealing part, thereby ensuring the sealing effect of the cover body of the present application on the bottle for a long time and reducing the probability that the abutting force of the bottom end of the sealing part on the inner side wall of the bottle mouth of the bottle decreases.
[0016] Preferably, the hardness of the material of the annular inner plug is less than the hardness of the material of the cover body.
[0017] By adopting the above technical solution, the setting of the hardness of the material of the annular inner plug makes the annular inner plug made of a relatively soft material. When the cover body is not screwed tightly onto the bottle body, the top end of the extension part is separated from the top of the abutting ring and is located below the abutting ring, so that the bottom end of the sealing part is not on the displacement path at the bottle mouth of the bottle, thereby reducing the probability that the sealing part hinders the screwing of the cover body and the bottle body and ensuring the smooth screwing between the cover body and the bottle body; at the same time, after the top end of the bottle mouth abuts against the bottom of the extension part, it can drive the extension part to deflect, so that the bottom end of the sealing part deflects accordingly, and the bottom end of the sealing part can smoothly abut against the inner side wall of the bottle mouth of the bottle, thereby ensuring the sealing effect.
[0018] Preferably, a protruding ring is further provided on the top wall of the cover body, and the protruding ring is located directly above the top end of the bottle mouth of the cover body.
[0019] By adopting the above technical solution, due to the setting of the protruding ring being located directly above the top end of the bottle mouth, when transporting the bottle body, the protruding ring can replace the top wall of the original cover body and abut against the collision object, thereby reducing the probability that the middle part of the top wall of the cover body is damaged due to the impact with the collision object and ensuring the integrity of the cover body of the present application during transportation.
[0020] Preferably, a plurality of anti-slip teeth are further provided on the outer peripheral wall of the cover body.
[0021] By adopting the above technical solution, the setting of the anti-slip teeth can effectively increase the friction force on the hand of the user when rotating the cover body, thereby reducing the torque required by the user to screw the cover body tightly, effectively facilitating the rotation of the cover body of the present application by the user and facilitating the use of the user.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. The setting of the torque scale and the pointing protrusion enables the user to know the current screwed-in torque simply by looking at the scale value of the torque scale pointed to by the top of the pointing protrusion. Moreover, the greater the degree of screwing of the lid body, the greater the torque required for the user to further tighten the lid body. Therefore, the user can judge the degree of tightness of the current lid body according to the size of the scale value pointed to by the top of the pointing protrusion, thereby improving the user's control over the tightness of the lid body, reducing the probability of the lid body being too loose or too tight after screwing on the bottle body, effectively ensuring the sealing degree of the liquid in the bottle body, and at the same time ensuring the service life of the lid body;
[0024] 2. The setting of the annular inner plug enables the top of the bottle body mouth to gradually abut against the extension part during the process of screwing the lid body onto the bottle body mouth, thereby driving the extension part to deflect, and further causing the sealing part to gradually approach and finally abut against the inner side wall of the bottle body mouth, so as to seal between the lid body and the bottle body, reducing the probability of the liquid in the bottle body leaking from the gap between the lid body and the bottle body, and thus increasing the sealing effect of the lid body of the present application on the bottle body;
[0025] 3. The setting of the protruding ring, since the protruding ring is located directly above the top of the bottle mouth, enables the protruding ring to replace the top wall of the original lid body and abut against the collision object during the transportation of the bottle body, thereby reducing the probability of damage to the middle of the top wall of the lid body due to impact with the collision object, and ensuring the integrity of the lid body of the present application during transportation. Description of the Drawings
[0026] Figure 1 is a schematic structural diagram for embodying the torque scale in Embodiment 1 of the present application.
[0027] Figure 2 is a schematic structural diagram for embodying the annular inner plug in Embodiment 2 of the present application.
[0028] Description of the reference numerals: 1. Lid body; 11. Torque scale; 2. Bottle body; 21. Pointing protrusion; 3. Anti-slip teeth; 4. Protruding ring; 5. Abutting ring; 6. Annular inner plug; 61. Extension part; 62. Sealing part; 63. Reinforcing rib. Detailed Description of the Invention
[0029] The following is a further detailed description of the present application in combination with the attached Figure 1-2 drawings.
[0030] Embodiment 1:
[0031] Embodiment 1 of the present application discloses a constant-torque bottle cap. Refer to Figure 1, The fixed-torque bottle cap includes a cap body 1, which is used to be screwed tightly onto the bottle body 2 and is threadedly connected to the mouth of the bottle body 2. A number of torque scales 11 are also provided on the circumferential wall at the bottom end of the cap body 1, and the scale values of the torque scales 11 increase successively along the arc direction of the circumferential wall of the cap body 1. A pointing protrusion 21 is also provided on the top end of the bottle body 2, and the top end of the pointing protrusion 21 extends vertically upward and is close to the torque scale 11.
[0032] Referring to the figure, the pointing protrusion 21 is integrally formed with the bottle body 2 and is located at the bottom end of the mouth of the bottle body 2 and protrudes outside the bottle body 2. The torque scale 11 is integrally formed with the cap body 1, and the torque scales 11 are arranged at equal angles along the axis direction of the cap body 1, and the scale values of the torque scales 11 increase successively along the arc direction of the circumferential wall of the cap body 1. In the embodiment of the present application, the scale values of the torque scales 11 are set on the scales, and the scale values of the torque scales 11 increase successively along the counterclockwise direction of the axis of the cap body 1 to adapt to the situation of actually rotating the cap body 1 clockwise.
[0033] Referring to the figure, a plurality of anti-slip teeth 3 are also provided on the outer circumferential wall of the cap body 1, and each anti-slip tooth 3 is integrally formed with the cap body 1. Each anti-slip tooth 3 is located above the torque scale 11, and the plurality of anti-slip teeth 3 are arranged at equal circumferential angles along the axis direction of the cap body 1 to increase the friction when the user rotates the cap body 1 and facilitate the user to rotate.
[0034] Referring to the figure, in other embodiments, a standard tightening value may also be set above a certain scale of the torque scale 11. The standard tightening value is the scale value of the torque scale 11 pointed to by the pointing protrusion 21 when the cap body 1 is tightened onto the bottle body 2 for the user to refer to and improve the user's control over the tightening of the cap body 1.
[0035] The implementation principle of the fixed-torque bottle cap in Embodiment 1 of the present application is as follows: The settings of the torque scale 11 and the pointing protrusion 21 enable the user to know the current torque of the screw-in by simply checking the scale value of the current scale of the torque scale 11 pointed to by the top end of the pointing protrusion 21. And since the greater the tightening degree of the cap body 1, the greater the torque required for the user to continue tightening the cap body 1, the user can thus judge the current tightening degree of the cap body 1 according to the size of the scale value of the scale pointed to by the top end of the pointing protrusion 21, thereby improving the user's control over the tightening degree of the cap body 1, reducing the probability of the cap body 1 and the bottle body 2 being too loose or too tight after screwing the cap, effectively ensuring the sealing degree of the liquid in the bottle body 2, and at the same time ensuring the service life of the cap body 1.
[0036] Embodiment 2:
[0037] The difference between Embodiment 2 of the present application and Embodiment 1 is: Referring to Figure 2, a protruding ring 4 is further provided on the top wall of the cover body 1, and the protruding ring 4 is integrally formed with the cover body 1. The protruding ring 4 is coaxially arranged with the cover body 1, and the inner diameter of the protruding ring 4 is larger than the inner diameter of the bottle mouth of the bottle body 2, and the outer diameter of the protruding ring 4 is smaller than the outer diameter of the bottle mouth of the bottle body 2, so that the pressure received by the protruding ring 4 when it abuts against the collision object can be directly transmitted to the top end of the bottle mouth of the bottle body 2, reducing the probability of damage to the cover body 1.
[0038] Refer to Figure 2 , a butting ring 5 is further provided on the inner top wall of the cover body 1, and the top end of the butting ring 5 is integrally formed with the inner top wall of the cover body 1. A part of the butting ring 5 is located above the bottle mouth of the bottle body 2, and the bottom end of the butting ring 5 extends to the outside of the bottle mouth of the bottle body 2 and is attached to the outer wall of the bottle mouth of the bottle body 2 to seal the outer side wall and part of the top end of the bottle mouth of the bottle body 2.
[0039] Refer to Figure 2 , an annular inner plug 6 is further provided on the inner top wall of the cover body 1, and the annular inner plug 6 is located on the side of the bottle mouth of the bottle body 2 away from the butting ring 5. The annular inner plug 6 is annular, and the top end of the annular inner plug 6 is fixedly connected to the inner top wall of the cover body 1. An extension part 61 and a sealing part 62 also extend downward on the bottom end of the annular inner plug 6, and both the extension part 61 and the sealing part 62 are integrally formed with the annular inner plug 6. The extension part 61 extends obliquely downward towards the butting ring 5 and is located on the displacement path of the top end of the bottle mouth of the bottle body 2.
[0040] Refer to Figure 2 , the bottom end of the sealing part 62 extends obliquely downward in a direction away from the butting ring 5. The bottom end of the sealing part 62 protrudes towards the inner side wall of the bottle mouth of the bottle body 2, so that when the bottle body 2 and the cover body 1 are screwed tightly, the protruding part on the bottom end of the sealing part 62 can abut against the inner side wall of the bottle mouth of the bottle body 2. A depression is formed on the inner side wall of the bottom end of the sealing part 62, and a plurality of reinforcing ribs 63 are arranged in the depression, and each reinforcing rib 63 is integrally formed with the sealing part 62 to increase the strength of the sealing part 62. The plurality of reinforcing ribs 63 are arranged at equal angles in a circumferential direction along the axis of the sealing part 62 to fully increase the effect of the reinforcing ribs 63 on increasing the strength of the sealing part 62.
[0041] Refer to Figure 2 , the hardness of the material of the annular inner plug 6 (including the extension part 61, the sealing part 62 and the reinforcing ribs) is less than the hardness of the material of the cover body 1. In the embodiment of the present application, the material of the annular inner plug 6 is set as a thermoplastic elastomer material, so that the annular inner plug 6 can have a certain degree of elasticity, so that when the extension part 61 abuts against the top end of the bottle mouth of the bottle body 2, it can be driven by the top end of the bottle mouth of the bottle body 2 to have a small offset, so that the sealing part 62 can be driven to have an offset and thus abut against the inner side wall of the bottle mouth of the bottle body 2.
[0042] Reference Figure 2 In the initial state, that is, when the cap 1 is not screwed onto the bottle body 2, the extension part 61 is located below the abutting ring 5 and does not contact the abutting ring 5. At this time, the sealing part 62 is not on the displacement path at the top of the mouth of the bottle body 2. When the cap 1 is gradually screwed tightly onto the bottle body 2 so that the top of the mouth of the bottle body 2 abuts against the bottom of the extension part 61, the extension part 61 is driven by the top of the mouth of the bottle body 2 and thus offsets upward, making the extension part 61 contact the bottom of the abutting ring 5. During this process, the bottom end of the sealing part 62 gradually approaches the inner wall of the mouth of the bottle body 2 and finally abuts against the inner wall of the mouth of the bottle body 2. After tightly abutting, the screwing of the cap 1 is completed.
[0043] The implementation principle of the constant-torque bottle cap in Embodiment 2 of the present application is: when the cap 1 is gradually screwed tightly onto the bottle body 2 so that the top of the mouth of the bottle body 2 abuts against the bottom of the extension part 61, the extension part 61 is driven by the top of the mouth of the bottle body 2 and thus offsets upward, making the extension part 61 contact the bottom of the abutting ring 5. During this process, the bottom end of the sealing part 62 gradually approaches the inner wall of the mouth of the bottle body 2 and finally abuts against the inner wall of the mouth of the bottle body 2. After tightly abutting, the screwing of the cap 1 is completed.
[0044] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A fixed torque bottle cap, comprising a cap body (1), wherein the cap body (1) is used to be screwed onto a bottle body (2), and characterized in that: A plurality of torque scales (11) are also provided on the side wall at the bottom end of the cover body (1), and the scale values of the torque scales (11) increase successively along the arc direction of the side wall of the cover body (1). A pointing protrusion (21) is also provided on the top end of the bottle body (2), and the top end of the pointing protrusion (21) extends vertically upward and is close to the torque scale (11).
2. A fixed torque bottle cap according to claim 1, characterized in that: An annular inner plug (6) is also provided on the inner top wall of the cover body (1), the top end of the annular inner plug (6) is connected to the inner top wall of the cover body (1), and the bottom end of the annular inner plug (6) is also provided with a sealing portion (62) extending downward, and the bottom end of the sealing portion (62) is inclined in a direction close to the axis of the cover body (1) and abuts against the inner wall of the bottle mouth of the bottle body (2).
3. A fixed torque bottle cap according to claim 2, characterized in that: An extension portion (61) extends downward from the top end of the annular inner plug (6), and the bottom end of the extension portion (61) is inclined in a direction away from the axis of the cover body (1) and is in contact with the top end of the bottle mouth of the bottle body (2).
4. A fixed torque bottle cap according to claim 3, characterized in that: An abutment ring (5) is also provided on the inner top wall of the cover body (1), and the abutment ring (5) is located at a side of the bottle mouth of the bottle body (2) away from the annular inner plug (6), the inner side wall of the bottom of the abutment ring (5) is in contact with the top outer wall of the bottle mouth of the bottle body (2), and the top of the abutment ring (5) is in contact with the top of the extension part (61).
5. The fixed torque bottle cap according to claim 2, characterized in that: The outer wall of the bottom end of the sealing portion (62) is protruding toward the inner wall of the bottle mouth of the bottle body (2) and abuts against the inner wall of the bottle mouth of the bottle body (2). A plurality of reinforcing ribs (63) are also arranged in the recess on the inner side of the bottom end of the sealing portion (62).
6. The fixed torque bottle cap according to claim 2, characterized in that: The hardness of the material of the annular inner plug (6) is smaller than the hardness of the material of the cover body (1).
7. The fixed torque bottle cap according to claim 1, characterized in that: A protruding ring (4) is also provided on the top wall of the cover body (1), and the protruding ring (4) is located just above the top of the bottle mouth of the cover body (1).
8. The fixed torque bottle cap according to claim 1, characterized in that: A plurality of anti-slip teeth (3) are also provided on the outer peripheral wall of the cover body (1).