Welding-free bottle cap structure for ink bottle

Abstract

The utility model relates to a welding-free bottle cap structure for an ink bottle, and belongs to the technical field of ink bottle equipment. The special ink bottle cap structure is formed by splicing the upper cap, the lower cap, the sealing shaft sleeve and the like, two different sealing ring structures are arranged between the lower cap and the bottle opening and between the upper cap and the lower cap respectively, and a limiting structure, a plummer block and the like are arranged for assembly. Different from a traditional sealing structure between the bottle cap and the bottle opening, the sealing performance is further improved on the basis that the ink adding nozzle is reserved, the assembly mode is further optimized through the design of the limiting structure, the sealing shaft sleeve, the first plummer block, the second plummer block and other structures, the production efficiency is improved, accurate installation of a sealing piece is facilitated, and the sealing effect is good. And the problem of ink leakage is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of welding-free bottle cap structure for ink bottle, belong to ink bottle equipment technical field. BACKGROUND

[0002] In order to seal and preserve printer ink, a refill bottle cap is usually installed on the bottle opening of the printer ink bottle, and a silicone ring is usually used to seal the ink adding nozzle, and a cutting opening is provided for ink adding. The sealing assembly method of the ink adding nozzle is to press the sealing ring from the bottom of the bottle cap upwards, and the sealing ring is limited between the bottom of the bottle cap and the bottle opening of the ink bottle.

[0003] However, when the sealing ring is pressed during automated production, a certain proportion of the sealing ring may not be properly pressed or may be wrinkled. This not only makes the structure relatively complex and not conducive to automated production, but also reduces efficiency. Without the aid of a positioning device, assembly may be difficult. If there is an assembly deviation, it will inevitably affect the sealing of the ink bottle, and ink may leak out.

[0004] Therefore, the current printer ink bottle cap structure has the problems of difficult accurate assembly of the sealing ring and poor sealing effect after assembly, and a bottle cap structure that can optimize the above problems is still needed. SUMMARY

[0005] To solve the above problems, the utility model provides a welding-free bottle cap structure for ink bottle, comprising:

[0006] The upper cap has a conical head and a hand rotating part connected to the tail end of the conical head. The inner cavity of the conical head has a limiting structure.

[0007] The lower cap has a bottle opening mounting seat connected to the bottle opening of the ink bottle and a sealing mounting seat connected to the bottle opening mounting seat. The maximum diameter of the sealing mounting seat is smaller than that of the bottle opening mounting seat.

[0008] The sealing shaft sleeve is assembled at one end of the sealing mounting seat of the lower cap and at the other end of the limiting structure of the conical head inner cavity. A first sealing ring is also installed in the sealing shaft sleeve. At least a part of the first sealing ring is tightly embedded in the sealing mounting seat and can cover the bottle opening of the ink bottle.

[0009] Further, a plurality of ribs are provided on the outer conical surface of the conical head.

[0010] Further, the limiting structure comprises a plurality of bones arranged on the inner cavity sidewall of the conical head, and a ring-shaped limiting member arranged on the inner cavity top wall of the conical head, and the plurality of bones are arranged in a central symmetric manner around the ring-shaped limiting member; when the ring-shaped limiting member is embedded and matched with one end of the sealing sleeve, the plurality of bones simultaneously abut against the sidewall of the sealing sleeve and the sidewall of the sealing mounting seat and limit the sealing sleeve.

[0011] Further, a plurality of convex strips are arranged on the outer surface of the handheld rotating part.

[0012] Further, the inner cavity top wall of the bottle mouth mounting seat is provided with a ring-shaped limiting groove, and a second sealing ring is matched in the ring-shaped limiting groove; and the inner cavity sidewall of the bottle mouth mounting seat is provided with an inner thread matched with the bottle mouth of the ink bottle.

[0013] Further, the sealing mounting seat comprises a first shaft table connected with the bottle mouth mounting seat and a second shaft table connected with the first shaft table, the outer diameter of the second shaft table is smaller than that of the first shaft table, a stepped surface is formed at the connection between the first shaft table and the second shaft table, one end of the sealing sleeve is arranged outside the second shaft table and abuts against the stepped surface, and at least a part of the first sealing ring is embedded and matched in the inside of the second shaft table.

[0014] Further, the outer wall of the bottle mouth mounting seat is provided with an outer thread matched with the inner wall of the handheld rotating part.

[0015] Further, an inclined transition surface is arranged at the connection between the bottle mouth of the ink bottle and the bottle body of the ink bottle, a plurality of clamping blocks are arranged on the inclined transition surface, the inner cavity sidewall of the bottle mouth mounting seat is provided with a ring-shaped gear rack capable of matching the clamping blocks, and the ring-shaped gear rack is arranged below the inner thread.

[0016] Further, a cross-shaped opening is arranged at the center of the first sealing ring.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model discloses a special ink bottle cap structure formed by assembling components such as an upper cover, a lower cover and a sealing sleeve, two different sealing ring structures are arranged between the lower cover and the bottle mouth and between the upper cover and the lower cover respectively, and limiting structures, shaft tables and the like are arranged for assembly. Different from the sealing structure between the traditional cap and the bottle mouth, the utility model not only further improves the sealing performance on the basis of retaining the ink adding nozzle, but also further optimizes the assembly mode through the design of the limiting structures, the sealing sleeve, the first shaft table, the second shaft table and the like, improves the production efficiency, facilitates the accurate installation of the sealing parts and effectively avoids the problem of ink leakage. DRAWINGS

[0019] Figure 1It is a schematic view of the overall structure after assembly in an embodiment of the utility model;

[0020] Figure 2 It is an exploded view of the overall structure in an embodiment of the utility model;

[0021] Figure 3 It is a schematic view of the inner cavity of the conical head in an embodiment of the utility model;

[0022] Figure 4 It is a schematic view of the cooperation of the sealing shaft sleeve and the first sealing ring in an embodiment of the utility model;

[0023] Figure 5 It is a schematic view of the external structure of the lower cover in an embodiment of the utility model.

[0024] Figure 6 It is a schematic view of the cooperation of the inner cavity top wall of the bottle mouth mounting seat and the second sealing ring in an embodiment of the utility model.

[0025] In the drawing: 1, upper cover; 2, sealing shaft sleeve; 3, first sealing ring; 4, lower cover; 5, second sealing ring; 6, ink bottle;

[0026] 11, bone strip; 12, annular limiting piece; 13, hand-held rotating part; 41, bottle mouth mounting seat; 42, first shaft table; 43, second shaft table; 44, stepped surface; 45, annular rack; 61, clamping block. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0029] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two element internal communication. For ordinary skilled person in the art, the above-mentioned term can be understood as the specific meaning in the utility model according to specific circumstances.

[0030] Embodiment 1

[0031] As Figures 1-6 shown, the utility model provides a kind of welding-free bottle cap structure for ink bottle, comprising:

[0032] upper cover 1, with conical head and the hand rotating part 13 of connecting conical head tail end, the inner cavity of the conical head has limiting structure;Multiple ribs are provided on the outer conical surface of the conical head, which can strengthen the structural strength of the entire upper cover;The limiting structure includes multiple bones 11 arranged on the inner cavity side wall of the conical head and the annular limiting member 12 located on the inner cavity top wall of the conical head, multiple the bones are arranged around the annular limiting member 12 and are centrally symmetric;When the annular limiting member 12 is embedded in one end of sealing shaft sleeve 2, multiple the bones 11 simultaneously abut the side wall of sealing shaft sleeve 2 and the side wall of sealing mounting seat and limit sealing shaft sleeve 2;Multiple convex strips are provided on the outer surface of the hand rotating part 13, which is convenient for hand screwing;

[0033] In the production process of ink bottle, commonly used hook cover and rub cover combined process, however, this process is easy to cause cap to twist when rubbing cover due to cap position not being placed straight;The utility model increases multiple bones 11 in the inside of upper cover 1, which not only can play a certain guiding role in this process, but also can limit sealing shaft sleeve 2 in longitudinal and transverse directions, to ensure the sealing between upper cover 1 and lower cover 4 when rotating;

[0034] Lower cover 4, with bottle mouth mounting seat 41 connected with ink bottle mouth and sealing mounting seat connected with bottle mouth mounting seat, the maximum diameter of the sealing mounting seat is less than the maximum diameter of the bottle mouth mounting seat 41;The inner cavity top wall of the bottle mouth mounting seat 41 is provided with annular limiting groove, and the second sealing ring 5 is matched in the annular limiting groove;The inner cavity side wall of the bottle mouth mounting seat 41 is provided with internal thread matched with ink bottle mouth;

[0035] The sealing sleeve 2 is assembled at one end of the sealing mounting seat of the lower cover 4 and at the other end of the annular limiting member 12 in the inner cavity of the conical head, a first sealing ring 3 is further assembled in the sealing sleeve 2, at least a part of the first sealing ring 3 is tightly embedded in the sealing mounting seat and can cover the ink bottle mouth; a cross-shaped opening is arranged at the center of the first sealing ring 3.

[0036] Further, the sealing mounting seat comprises a first shaft table 42 connected with the bottle mouth mounting seat and a second shaft table 43 connected with the first shaft table 42, the outer diameter of the second shaft table 43 is smaller than that of the first shaft table 42, a stepped surface 44 is formed at the connection of the first shaft table 42 and the second shaft table 43, one end of the sealing sleeve 2 is sleeved outside the second shaft table 43 and abuts against the stepped surface 44 to form assembly.

[0037] Further, the outer wall of the bottle mouth mounting seat 41 is provided with external threads matched with the internal threads of the handheld rotating part 13.

[0038] Further, an inclined transition surface is arranged at the connection of the ink bottle mouth and the ink bottle body, a plurality of clamping blocks 61 are arranged on the inclined transition surface, the inner cavity side wall of the bottle mouth mounting seat is provided with an annular rack 45 capable of matching the clamping blocks, the annular rack 45 is located below the internal threads, after the above arrangement, the whole seal-free bottle cap can ensure that only the upper cover 1 is rotated and opened when the whole seal-free bottle cap is counterclockwise rotated, and the lower cover 4 is clamped and cannot be rotated and slipped from the bottle mouth mounting seat 41 due to the friction force in the non-use state.

[0039] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model, anyone familiar with the technology can make various changes and modifications without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the claims.

Claims

1. A weld-free bottle cap structure for an ink bottle, characterized by, The utility model relates to a pen cap, comprising: an upper cap having a conical head and a hand-held rotating part connected to the tail end of the conical head, the inner cavity of the conical head having a limiting structure; a lower cap having a bottle mouth mounting seat connected to the bottle mouth of an ink bottle and a sealing mounting seat connected to the bottle mouth mounting seat, the maximum diameter of the sealing mounting seat being smaller than that of the bottle mouth mounting seat; a sealing sleeve assembled at one end to the sealing mounting seat of the lower cap and at the other end to the limiting structure of the inner cavity of the conical head, the sealing sleeve further having a first sealing ring mounted therein, at least a part of the first sealing ring being tightly embedded in the sealing mounting seat and capable of sealing the bottle mouth of the ink bottle.

2. The weldless bottle closure structure of claim 1, wherein The outer conical surface of the conical head is provided with a plurality of ribs.

3. The weldless bottle closure structure of claim 2, wherein The limiting structure comprises a plurality of bones provided on the side wall of the inner cavity of the conical head and an annular limiting member located on the top wall of the inner cavity of the conical head, the plurality of bones being arranged in a central symmetrical manner around the annular limiting member; when the annular limiting member is embedded and fitted at one end of the sealing sleeve, the plurality of bones simultaneously abut against the side wall of the sealing sleeve and the side wall of the sealing mounting seat and limit the sealing sleeve.

4. The weldless bottle closure structure of claim 3, wherein The outer surface of the hand-held rotating part is provided with a plurality of convex strips.

5. The weldless bottle closure structure of claim 1, wherein The top wall of the inner cavity of the bottle mouth mounting seat is provided with an annular limiting groove, the annular limiting groove being fitted with a second sealing ring; the side wall of the inner cavity of the bottle mouth mounting seat is provided with an internal thread matched with the bottle mouth of the ink bottle.

6. The weldless bottle closure structure of claim 5, wherein The sealing mounting seat comprises a first shaft table connected to the bottle mouth mounting seat and a second shaft table connected to the first shaft table, the outer diameter of the second shaft table being smaller than that of the first shaft table, a stepped surface being formed at the connection between the first shaft table and the second shaft table, one end of the sealing sleeve being sleeved on the outside of the second shaft table and abutting against the stepped surface, at least a part of the first sealing ring being embedded and fitted in the inside of the second shaft table.

7. The weldless bottle closure structure of claim 6, wherein The outer wall of the bottle mouth mounting seat is provided with an external thread matched with the internal thread of the hand-held rotating part.

8. The weldless bottle closure structure of claim 7, wherein The connection between the bottle mouth of the ink bottle and the bottle body of the ink bottle is provided with an inclined transition surface, the inclined transition surface being provided with a plurality of clamping blocks, the side wall of the inner cavity of the bottle mouth mounting seat being provided with an annular rack capable of matching the clamping blocks, the annular rack being located below the internal thread.

9. The weldless bottle closure structure of claim 8, wherein, The center of the first sealing ring is provided with a cross-shaped opening.

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