Backflow prevention structure of ink box

Abstract

The utility model relates to the technical field of printer accessories, and discloses an anti-backflow structure of an ink box, which comprises a device main body, the device main body comprises an ink box body, the ink box body is provided with an ink outlet, and an anti-backflow mechanism is arranged in the ink outlet. The ink outlet channel is composed of the first through groove, the second through groove and the third through groove, the diameter of each through groove is reasonable in design, and particularly, the diameter of the third through groove is larger than that of the first through groove and the second through groove, so that ink can flow out smoothly, the sealing assembly can respond quickly when needed, an effective sealing barrier is formed, and the service life of the ink box is prolonged. The sealing assembly is composed of a mounting base, a reset spring and a sealing plug block, so that the sealing plug block can automatically reset and seal the second through groove when the ink flows back, reverse flowing of the ink is avoided, the problem that the printing quality is reduced due to backflow of the ink, such as uneven colors and broken lines, is solved by adopting the design, and the printing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printer accessories, and more particularly to an anti-backflow structure of an ink cartridge. Background Art

[0002] In existing inkjet printing technology, ink cartridges are key components whose performance directly impacts print quality. However, most conventional printer cartridges currently in widespread use lack dedicated backflow prevention mechanisms. During the printing process, ink can often flow back from the nozzle into the cartridge due to factors such as pressure and temperature changes within the cartridge, or due to printing interruptions. This backflow can cause ink to deposit and agglomerate inside the cartridge, clogging the nozzle, affecting print quality, and even damaging the cartridge. Therefore, in light of this, research and improvements are being conducted on existing structures and deficiencies, with the goal of providing an ink cartridge backflow prevention mechanism with greater practical value. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an anti-backflow structure of an ink cartridge to solve the problems existing in the above-mentioned background technology.

[0004] The utility model provides the following technical solution: an anti-backflow structure of an ink cartridge, comprising a device main body, the device main body comprising an ink cartridge body, an ink outlet on the ink cartridge body, an anti-backflow mechanism arranged inside the ink outlet, the anti-backflow mechanism consisting of an ink outlet channel and a sealing component, the ink outlet channel specifically comprising a first through groove, a second through groove and a third through groove, the first through groove, the second through groove and the third through groove are all cylindrical and opened in the ink outlet, wherein the second through groove is located in the upper part of the ink outlet, the first through groove is located in the lower part of the ink outlet, the diameters of the first through groove and the second through groove are the same; the third through groove is located in the middle of the ink outlet, the diameter of the third through groove is larger than that of the first through groove and the second through groove, the sealing component comprises a mounting base, a reset spring and a sealing plug, the mounting base is mounted on the inner wall of the first through groove, and the mounting base Through holes are evenly opened on the top, the return spring is fixedly installed on the top of the mounting base, and the sealing plug is installed on the top of the return spring. When the ink refluxes, the return spring drives the sealing plug to the second through groove to form a seal, which effectively prevents backflow. The ink outlet channel consists of three parts: the first through groove, the second through groove and the third through groove. The diameter of each through groove is reasonably designed, especially the diameter of the third through groove is larger than that of the first and second through grooves. Such a design not only ensures the smooth outflow of ink, but also facilitates the sealing component to respond quickly when needed to form an effective sealing barrier. The sealing component consists of a mounting base, a return spring and a sealing plug, so that the sealing plug can automatically reset and seal the second through groove when the ink refluxes, avoiding the reverse flow of ink. The use of this design reduces the problem of print quality degradation caused by ink reflux, such as uneven color, broken lines, etc., thereby improving the printing effect.

[0005] Furthermore, an inclined surface is provided inside the ink cartridge body to optimize the ink flow path and prevent poor ink discharge.

[0006] Furthermore, an observation window is provided on the front of the ink cartridge body to facilitate the user to observe the remaining ink inside the ink cartridge.

[0007] Furthermore, a stirring mechanism is provided inside the ink cartridge body, and the stirring mechanism includes a motor, a stirring shaft and a stirring blade. The motor is installed on the outside of the ink cartridge body to drive the stirring shaft to rotate. The stirring shaft is provided inside the ink cartridge body, and the stirring blade is installed on the outer surface of the stirring shaft to stir the ink to prevent precipitation.

[0008] Furthermore, the stirring blade is a stirring plate fixedly mounted on the outer surface of the stirring shaft in an "S" shape or is in the form of a spiral stirring blade to enhance the stirring effect and ink fluidity.

[0009] Furthermore, an electric telescopic rod is installed inside the box body, and a thimble is connected to the bottom end of the electric telescopic rod. By controlling the extension and retraction of the electric telescopic rod, the thimble can assist the ink in discharging.

[0010] The technical effects and advantages of this utility model are:

[0011] 1. The ink outlet channel of the present invention consists of three parts: a first through groove, a second through groove and a third through groove. The diameter of each through groove is reasonably designed, especially the diameter of the third through groove is larger than that of the first and second through grooves. This design not only ensures the smooth outflow of ink, but also facilitates the sealing component to respond quickly when needed to form an effective sealing barrier. The sealing component consists of a mounting base, a reset spring and a sealing plug, so that the sealing plug can automatically reset and seal the second through groove when the ink flows back, avoiding the reverse flow of ink. This design reduces the problem of print quality degradation caused by ink reflux, such as uneven color, broken lines, etc., thereby improving the printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic front cross-sectional view of the structure of the present invention.

[0013] Figure 2 It is a schematic front view of the structure of the present invention.

[0014] Figure 3 It is a front cross-sectional schematic diagram of the anti-backflow mechanism structure of the present invention.

[0015] Figure 4 This is a front view schematic diagram of the stirring mechanism structure of the present invention.

[0016] In the figure: 100, device body; 110, ink cartridge body; 111, ink outlet; 112, first through slot; 113, second through slot; 114, third through slot; 115, mounting base; 116, return spring; 117, sealing plug; 118, electric telescopic rod; 119, ejector pin; 120, inclined surface; 121, motor; 122, stirring shaft; 123, stirring blade; 124, observation window. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below with reference to the accompanying drawings of the present invention.

[0018] Embodiment 1: The utility model provides an anti-backflow structure of an ink cartridge, including a device body 100, the device body 100 includes an ink cartridge body 110, the ink cartridge body 110 has an ink outlet 111, the ink outlet 111 is provided with an anti-backflow mechanism, the anti-backflow mechanism is composed of an ink outlet channel and a sealing component, the ink outlet channel specifically includes a first through groove 112, a second through groove 113 and a third through groove 114, the first through groove 112, the second through groove 113 and the third through groove 114 are all cylindrical and are opened in the ink outlet 111, wherein the second through groove 113 is located in the upper part of the ink outlet 111, the first through groove 112 is located in the lower part of the ink outlet 111, and the first through groove 114 is located in the lower part of the ink outlet 111. 2 and the second through groove 113 have the same diameter; the third through groove 114 is located in the middle of the ink outlet 111, and the diameter of the third through groove 114 is larger than that of the first through groove 112 and the second through groove 113. The sealing assembly includes a mounting base 115, a return spring 116 and a sealing plug 117. The mounting base 115 is mounted on the inner wall of the first through groove 112, and through holes are evenly opened on the mounting base 115. The return spring 116 is fixedly mounted on the top of the mounting base 115, and the sealing plug 117 is mounted on the top of the return spring 116. When the ink refluxes, the return spring 116 drives the sealing plug 117 to the second through groove 113 to form a seal, thereby effectively preventing backflow.

[0019] The ink outlet channel consists of three parts: the first through groove, the second through groove and the third through groove, and the diameter of each through groove is reasonably designed, especially the diameter of the third through groove is larger than the first and second through grooves. This design not only ensures the smooth flow of ink, but also facilitates the sealing component to respond quickly when needed to form an effective sealing barrier. The sealing component consists of a mounting base, a reset spring and a sealing plug, so that the sealing plug can automatically reset and seal the second through groove when the ink flows back, thereby avoiding the reverse flow of ink. Example 2

[0020] The difference between Example 2 and Example 1 is that an inclined surface 120 is provided inside the ink cartridge body 110 to optimize the ink flow path and prevent poor ink discharge. An observation window 124 is provided on the front of the ink cartridge body 110 to facilitate the user to observe the remaining ink inside the ink cartridge. A stirring mechanism is provided inside the ink cartridge body 110, and the stirring mechanism includes a motor 121, a stirring shaft 122 and a stirring blade 123. The motor 121 is installed on the outside of the ink cartridge body 110 and is used to drive the stirring shaft 122 to rotate. The stirring shaft 122 is provided inside the ink cartridge body 110. The stirring blade 123 is installed on the outer surface of the stirring shaft 122 to stir the ink and prevent precipitation. The stirring blade 123 is a stirring plate fixedly mounted on the outer surface of the stirring shaft in an "S" shape or in the form of a spiral stirring blade to enhance the stirring effect and ink fluidity. An electric telescopic rod 118 is installed inside the cartridge body 110. The bottom end of the electric telescopic rod 118 is connected to a ejector pin 119. By controlling the extension and retraction of the electric telescopic rod 118, the ejector pin 119 can assist the ink discharge.

[0021] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0022] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0023] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ink cartridge backflow prevention structure, comprising a device body (100), wherein the device body (100) comprises an ink cartridge body (110), wherein the ink cartridge body (110) has an ink outlet (111), and wherein: An anti-backflow mechanism is provided inside the ink outlet (111), and the anti-backflow mechanism consists of an ink outlet channel and a sealing component. The ink outlet channel specifically includes a first through groove (112), a second through groove (113) and a third through groove (114). The first through groove (112), the second through groove (113) and the third through groove (114) are all cylindrical and are opened in the ink outlet (111), wherein the second through groove (113) is located in the upper part of the ink outlet (111), and the first through groove (112) is located in the lower part of the ink outlet (111). The diameters of the first through groove (112) and the second through groove (113) are the same; the third through groove (114) is located in the middle part of the ink outlet (111). The diameter of the third through groove (114) is larger than that of the first through groove (112) and the second through groove (113). The sealing assembly includes a mounting base (115), a return spring (116) and a sealing plug (117). The mounting base (115) is mounted on the inner wall of the first through groove (112), and through holes are evenly opened on the mounting base (115). The return spring (116) is fixedly mounted on the top of the mounting base (115). The sealing plug (117) is mounted on the top of the return spring (116). When the ink refluxes, the return spring (116) drives the sealing plug (117) to reach the second through groove (113), forming a seal and effectively preventing backflow.

2. The backflow prevention structure of an ink cartridge according to claim 1, characterized in that: An inclined surface (120) is provided inside the ink cartridge body (110) to optimize the ink flow path and prevent poor ink discharge.

3. The backflow prevention structure of an ink cartridge according to claim 1, characterized in that: An observation window (124) is provided on the front of the ink cartridge body (110), facilitating the user to observe the remaining ink inside the ink cartridge.

4. The backflow prevention structure of an ink cartridge according to claim 1, characterized in that: A stirring mechanism is provided inside the ink cartridge body (110), and the stirring mechanism includes a motor (121), a stirring shaft (122), and a stirring blade (123). The motor (121) is installed outside the ink cartridge body (110) and is used to drive the stirring shaft (122) to rotate. The stirring shaft (122) is provided inside the ink cartridge body (110). The stirring blade (123) is installed on the outer surface of the stirring shaft (122) and is used to stir the ink to prevent precipitation.

5. The backflow prevention structure of an ink cartridge according to claim 4, characterized in that: The stirring blade (123) is a stirring plate fixedly mounted on the outer surface of the stirring shaft in an "S" shape or in the form of a spiral stirring blade to enhance the stirring effect and ink fluidity.

6. The backflow prevention structure of an ink cartridge according to claim 1, characterized in that: An electric telescopic rod (118) is installed inside the box body (110), and a thimble (119) is connected to the bottom end of the electric telescopic rod (118). By controlling the extension and retraction of the electric telescopic rod (118), the thimble (119) can assist the ink in discharging.

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