Negative pressure adjusting type ink box

Abstract

The utility model discloses a negative pressure adjusting type ink cartridge, relates to the printer ink cartridge technical field, and comprises an outer shell and an ink outlet, the outer shell comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, a cavity is arranged between the upper shell and the lower shell, and a soft rubber film is accommodated in the cavity; one end of the ink outlet communicates with the interior of the cavity, and the other end of the ink outlet is in butt joint with an ink inlet of ink-jet printing equipment arranged externally. According to the utility model, the upper half part of the ink chamber is provided with the soft rubber film, the soft rubber film can automatically approach the lower shell under the action of air pressure along with the reduction of ink quantity in the use process of the ink box, mechanisms such as an elastic sheet do not need to be added, and the utilization rate of ink in the ink chamber can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printer cartridges, in particular to a negative pressure adjustable cartridge. Background Art

[0002] The cartridge mainly refers to the component in an inkjet printer that stores printing ink and finally completes printing. Existing cartridges are all provided with an ink storage bin for storing ink. Most of the existing ink filling for the ink storage bin is still carried out manually with a syringe, which has low efficiency, and there are also ink leakage or seepage situations during the operation process, resulting in low utilization rate of the ink in the ink storage bin, waste of resources, and too high usage cost.

[0003] Therefore, in order to solve the existing problems, it is necessary to design a negative pressure adjustable cartridge that can solve the problems of low utilization rate of ink in the ink storage bin, ink leakage, high usage cost, etc. Summary of the Utility Model

[0004] In order to solve the existing problems of low utilization rate of ink in the ink storage bin, ink leakage, high usage cost, etc., the utility model provides a negative pressure adjustable cartridge.

[0005] In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:

[0006] A negative pressure adjustable cartridge, comprising an outer shell and an ink outlet. The outer shell includes an upper shell and a lower shell. The upper shell and the lower shell are detachably connected, and a cavity is provided between the upper shell and the lower shell. A soft rubber film is accommodated in the cavity. One end of the ink outlet communicates with the inside of the cavity, and the other end is docked with the ink inlet of an externally arranged inkjet printing device.

[0007] Based on the above technical scheme, further, the soft rubber film forms an ink storage bin, and the ink outlet communicates with the inside of the ink storage bin.

[0008] Based on the above technical scheme, further, the sealed space formed between the soft rubber film and the lower shell forms an ink storage bin. The sealed space is a part of the cavity, and the ink outlet communicates with the inside of the ink storage bin.

[0009] Based on the above technical scheme, further, the negative pressure adjustable cartridge further includes a sealing ring. The sealing ring is integrally formed with the soft rubber film, and the sealing ring is arranged at the connection position between the upper shell and the lower shell.

[0010] Based on the above technical scheme, further, the soft rubber film is integrally formed with the lower shell.

[0011] Based on the above technical scheme, further, the ink outlet and the ink inlet are connected by a plug-in method.

[0012] Based on the above technical solution, further, a sealing film is provided at the ink outlet.

[0013] Based on the above technical solution, further, the sealing film is a silica gel film, and the silica gel film is fixedly connected to the ink outlet.

[0014] Based on the above technical solution, further, the upper housing is provided with a buckle, the lower housing is provided with a bayonet matching the buckle, and the upper housing and the lower housing are snap-connected through the buckle and the bayonet.

[0015] Based on the above technical solution, further, positioning holes are respectively provided on the upper housing, the lower housing, and the soft rubber film, and all the positioning holes are coaxially arranged.

[0016] Compared with the prior art, the beneficial effects of the present utility model are specifically embodied in:

[0017] In the present utility model, the upper half of the ink cartridge is provided with a soft rubber film. During the use of the ink cartridge, as the ink volume decreases, the soft rubber film will automatically approach the lower housing under the action of air negative pressure. Without adding mechanisms such as elastic pieces, the utilization rate of the ink in the ink cartridge can be improved. Moreover, multiple sealing structures are provided in the present utility model to achieve a sealing effect and avoid ink leakage or ink seepage, resulting in waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an exploded view schematic diagram of an embodiment of the negative pressure adjustable ink cartridge of the present utility model;

[0019] Figure 2 is Figure 1 a cross-sectional view of;

[0020] Figure 3 is an exploded view schematic diagram of another embodiment of the negative pressure adjustable ink cartridge of the present utility model;

[0021] Figure 4 is Figure 3 a cross-sectional view of;

[0022] Description of the reference numerals: 201, upper housing; 202, soft rubber film; 203, lower housing; 204, ink outlet; 205, ink cartridge; 206, sealing film; 207, sealing ring; 208, buckle; 209, bayonet; 210, positioning hole; 211, groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described and explained below in conjunction with the drawings and specific embodiments. The technical features of each embodiment in the present utility model can be combined correspondingly without conflict.

[0024] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings. A lot of specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below. The technical features in each embodiment of the present utility model can be combined correspondingly without conflict.

[0025] In the description of the present utility model, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, that is, there is an intermediate element. On the contrary, when an element is referred to as being "directly" connected to another element, there is no intermediate element.

[0026] Embodiment

[0027] Combined Figure 1 And Figure 2 As shown, in this embodiment, a negative pressure adjustable ink cartridge is provided, which includes an outer housing and an ink outlet 204. The outer housing includes an upper housing 201 and a lower housing 203. The upper housing 201 and the lower housing 203 are detachably connected, and a cavity is provided between the upper housing 201 and the lower housing 203. A soft rubber film 202 is accommodated in the cavity; one end of the ink outlet 204 communicates with the inside of the cavity, and the other end is docked with the ink inlet of an externally provided inkjet printing device.

[0028] In some preferred embodiments, the ink outlet 204 and the ink inlet are connected by insertion. A sealing film 206 is provided on the outside of the ink outlet 204, and a needle is provided on the ink inlet. When installing the negative pressure adjustable ink cartridge, the needle pierces the sealing film 206 to connect the ink reservoir 205 with the ink reservoirs 205 of other externally provided ink cartridges. In this embodiment, the sealing film 206 is disposable and cannot be restored after being pierced by the needle. In some preferred embodiments, the sealing film 206 is a silicone film, and the silicone film is fixedly connected to the ink outlet 204 by hot pressing or secondary injection molding. Using a silicone film for the sealing film 206 can make the contact between the sealing film 206 and the needle closer, and it is not easy to leak or seep ink, greatly improving the sealing performance of the contact between the needle and the sealing film 206.

[0029] In some preferred embodiments, the ink reservoir 205 provided in the negative pressure adjustable ink cartridge is entirely composed of a soft rubber film 202. In this embodiment, the outer housing directly wraps the ink reservoir 205 composed of the soft rubber film 202. At this time, the area occupied by the ink reservoir 205 is part or all of the area of the cavity.

[0030] In some preferred embodiments, the soft rubber film 202 and the lower housing 203 form a sealed space to form an ink cartridge 205. In this embodiment, the upper half of the ink cartridge 205 is composed of the soft rubber film 202. During the use of the ink cartridge, as the ink volume decreases, the soft rubber film 202 will automatically approach the lower housing 203 under the action of air negative pressure. Without adding structures such as elastic pieces, the utilization rate of the ink in the ink cartridge 205 can be improved.

[0031] In some preferred embodiments, a sealing ring 207 is also provided in the negative pressure adjustable ink cartridge. By providing the sealing ring 207, the airtightness of the ink cartridge 205 can be increased. The sealing ring 207 and the soft rubber film 202 are integrally formed. The sealing ring 207 is provided between the upper housing 201 and the lower housing 203, and the sealing ring 207 is provided at the connection between the upper housing 201 and the lower housing 203. Among them, the sealing ring 207 extends outward from the edge of the soft rubber film 202 to the surroundings. There is a groove at the bottom edge of the upper housing 201, and the sealing ring 207 is located in the groove. The lower end of the sealing ring 207 is butted against the top of the lower housing 203 to achieve the sealing effect. In this embodiment, a buckle 208 is provided on the upper housing 201, and a bayonet 209 matching the buckle 208 is provided on the lower housing 203. The upper housing 201 and the lower housing 203 are snap-connected through the buckle 208 and the bayonet 209. Those skilled in the art can know that this embodiment only lists the snap connection method of the detachable connection between the upper housing 201 and the lower housing 203. There are many available existing methods for the detachable connection between the two, and they cannot be exhausted. For example, connection by threaded screws, bonding, snap connection, etc.; the detachable connection method between the upper housing 201 and the lower housing 203 enables the negative pressure adjustable ink cartridge to be recycled, thereby reducing the waste of social resources.

[0032] In some preferred embodiments, the soft rubber film 202 can also be integrally formed with the lower housing 203, which is not shown in the drawings of the present utility model. However, the design of integrally forming the soft rubber film 202 with the lower housing 203 can completely seal the ink cartridge 205, making the ink cartridge more stable in use and not prone to ink leakage.

[0033] Combined Figure 3 and Figure 4 As shown, in some preferred embodiments, positioning holes 210 are provided on the upper housing, the lower housing, and the soft rubber film, and the positioning holes 210 on these three are coaxially arranged. The positioning holes 210 are provided to improve the installation accuracy. When there is a matching positioning structure at the position where the inkjet printing device is externally provided for installing the ink cartridge, only the positioning holes 210 need to be aligned with the positioning structure, which is convenient and quick to install the ink cartridge structure in this embodiment.

[0034] In some preferred embodiments, the present device can also be used in cooperation with other matching ink cartridge structures. There are no excessive restrictions on the specific use of the present device.

[0035] The above are only the embodiments of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A negative pressure regulating ink cartridge, characterized in that: Including an outer shell and an ink outlet, The outer shell comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, and a cavity is provided between the upper shell and the lower shell, and a soft adhesive film is accommodated in the cavity; One end of the ink outlet is connected to the interior of the cavity, and the other end is connected to the ink inlet of an externally arranged inkjet printing device.

2. A negative pressure regulating ink cartridge according to claim 1, characterized in that: The soft adhesive film forms an ink tank, and the ink outlet is connected to the interior of the ink tank.

3. The negative pressure regulating ink cartridge according to claim 1, characterized in that: The enclosed space formed between the soft adhesive film and the lower shell forms an ink tank, the enclosed space is a part of the cavity, and the ink outlet is connected to the inside of the ink tank.

4. A negative pressure regulating ink cartridge according to claim 2 or 3, characterized in that: The negative pressure regulating ink cartridge further comprises a sealing ring, which is integrally formed with the soft adhesive film and is arranged at a connection position between the upper shell and the lower shell.

5. The negative pressure regulating ink cartridge according to claim 4, characterized in that: The soft adhesive film is integrally formed with the lower shell.

6. The negative pressure regulating ink cartridge according to claim 1, characterized in that: The ink outlet is connected to the ink inlet by plugging.

7. The negative pressure regulating ink cartridge according to claim 1, characterized in that: A sealing film is arranged at the ink outlet.

8. The negative pressure regulating ink cartridge according to claim 7, characterized in that: The sealing film is a silicone film, and the silicone film is fixedly connected to the ink outlet.

9. The negative pressure regulating ink cartridge according to claim 1, characterized in that: The upper shell is provided with a buckle, and the lower shell is provided with a bayonet matched with the buckle, and the upper shell is connected with the lower shell through the buckle and the bayonet.

10. The negative pressure regulating ink cartridge according to claim 1, characterized in that: Positioning holes are respectively provided on the upper shell, the lower shell and the soft adhesive film, and all the positioning holes are coaxially arranged.

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