A reusable inkjet printer cartridge

Abstract

This invention relates to the technical field of printer ink cartridges, and particularly to a reusable inkjet printer ink cartridge, comprising an ink cartridge and an ink vent, the ink vent being connected to and disposed at the bottom of the ink cartridge; it also includes an ink filling device, a mixing device, a linkage device, a partition, a first rotating shaft, a handwheel, and a spur gear. The partition is installed on the upper part of the inner side wall of the ink cartridge, the first rotating shaft is rotatably mounted on the top of the partition, and the top of the first rotating shaft extends outside the ink cartridge, the handwheel is installed on the top of the first rotating shaft, and the spur gear is fitted on the outer side wall of the first rotating shaft. The ink filling device is disposed inside the ink cartridge and is used to add ink to the inside of the ink cartridge and vent air. The mixing device is disposed inside the ink cartridge. It facilitates venting air while adding ink, avoiding ink leakage during ink filling, and facilitates stirring the ink after ink filling to prevent ink sedimentation, improving the convenience of reuse, reducing the complexity of manual ink filling operations, and improving ink filling efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of printer ink cartridges, and in particular to a reusable inkjet printer ink cartridge. Background Technology

[0002] Inkjet printers are common printing devices in modern offices and lives, and their ink cartridges are an important component. However, traditional inkjet printer cartridges are disposable and need to be replaced after use. This not only increases the cost of use but also puts a lot of pressure on the environment. Therefore, there is a need for reusable printer cartridges.

[0003] As shown in the prior art patent application number CN200520054162.X, this utility model relates to a computer consumable, and more particularly to a novel printer ink cartridge. Existing printer ink cartridges have complex reflective devices, high costs, and are difficult to manufacture. To solve the above technical problems, this novel printer ink cartridge includes a cartridge body, a cover, a reflective device, and a photosensitive device. Its distinguishing feature is that the reflective device is a reflective mirror. The reflective device is located at the bottom of the cartridge body, and an ink passage is provided between it and the bottom plate of the cartridge body. The bottom plate of the cartridge body is inclined, with its ink outlet located at the lowest point of the bottom plate, and the reflective device is higher than the ink outlet.

[0004] However, during use, it was found that when adding ink to the cartridge, it was not convenient to release the pressure inside the cartridge at the same time. The ink entering the cartridge would compress the air inside, resulting in increased pressure at the ink outlet and causing ink leakage. Furthermore, because the ink tends to accumulate at the bottom of the cartridge and become viscous, it is not easy to stir the ink inside the cartridge, which reduces the uniformity of the ink, increases the complexity of the operation when adding ink, and reduces work efficiency. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a reusable inkjet printer cartridge that facilitates ink filling while simultaneously venting air outwards, preventing ink leakage during filling, allows for easy stirring of the ink after filling to prevent ink sedimentation, improves the convenience of reuse, reduces the complexity of manual ink filling operations, and enhances ink filling efficiency.

[0006] This invention discloses a reusable inkjet printer cartridge, comprising an ink cartridge and an ink vent, the ink vent being connected to the bottom of the ink cartridge; it also includes an ink filling device, a mixing device, a linkage device, a partition, a first rotating shaft, a handwheel, and a spur gear. The partition is installed on the upper part of the inner side wall of the ink cartridge, the first rotating shaft is rotatably mounted on the top of the partition, and the top of the first rotating shaft extends outside the ink cartridge, the handwheel is installed on the top of the first rotating shaft, and the spur gear is fitted onto the outer side wall of the first rotating shaft. The ink filling device is located inside the ink cartridge and is used to add ink and vent air from the ink cartridge. The mixing device is located inside the ink cartridge and is used to mix and stir the ink inside the ink cartridge. The spur gear drives the ink filling device and the mixing device respectively through the linkage device. When the ink in the ink cartridge is used up, the operator will add ink. The ink filling device's input end connects to an external ink reservoir. A gripping handwheel drives the first rotating shaft and spur gear to rotate clockwise or counter-clockwise. Clockwise rotation of the spur gear drives the ink filling device, drawing ink from the external reservoir and delivering it into the ink cartridge. Simultaneously, the device expels air from the cartridge, preventing pressure buildup and ink leakage during filling. Once filling is complete, counter-clockwise rotation of the spur gear drives a mixing device, agitating the ink at the bottom of the cartridge to prevent sedimentation, improve ink uniformity, enhance the ease of reusing printer cartridges, reduce the complexity of manual ink filling operations, and increase filling efficiency.

[0007] Preferably, the ink filling device includes a pushing device, a conveyor box, an impeller, a one-way inlet valve, a discharge pipe, a second rotating shaft, a first cylinder, a one-way exhaust valve, a piston, and a first spring. The conveyor box is installed at the bottom of the partition, the impeller is located inside the conveyor box, the one-way inlet valve is connected to the right side of the conveyor box, and the discharge pipe is connected to the left side of the conveyor box. The bottom end of the second rotating shaft is rotatably installed on the inner wall of the conveyor box, and the impeller is fitted onto the outer wall of the second rotating shaft. The first cylinder is connected to the top of the ink cartridge, the one-way exhaust valve is connected to the outer wall of the first cylinder, and the piston is slidably installed inside the first cylinder. The bottom end of the piston is connected to the top end of the second rotating shaft through the pushing device, and the first spring is fitted onto the top end of the piston. When the spur gear rotates clockwise... During operation, the spur gear drives the second shaft to rotate via a linkage device. The rotation of the second shaft then drives the impeller to rotate, causing the impeller to draw ink from the outside through a one-way inlet valve. The drawn ink is discharged into the ink cartridge through the discharge pipe. Simultaneously, the rotation of the second shaft drives the pusher device, which reciprocates by pushing the piston upward. The first spring provides a downward pushing force to the piston, causing it to move up and down. When the piston moves upward, it draws air into the ink cartridge. When the piston moves downward, it discharges the air from the first cylinder through a one-way exhaust valve. This process actively vents air from the inside of the ink cartridge while adding ink, preventing pressure buildup and improving the convenience and efficiency of ink refilling.

[0008] Preferably, the mixing device includes a bearing seat, a third rotating shaft, a first bevel gear, a fourth rotating shaft, a second bevel gear, and multiple sets of blades. The bearing seat is mounted on the inner wall of the ink cartridge, the third rotating shaft is rotatably mounted on the bearing seat, the first bevel gear is mounted on the outer wall of the third rotating shaft, the fourth rotating shaft is rotatably mounted on the inner wall of the ink cartridge, and the second bevel gear is mounted on the outer wall of the fourth rotating shaft, with the second bevel gear meshing with the first bevel gear. Multiple sets of blades are all mounted on the outer wall of the fourth rotating shaft. When the spur gear rotates counterclockwise, the spur gear drives the third rotating shaft to rotate through a linkage device. The rotation of the third rotating shaft drives the first bevel gear to rotate, and the rotation of the first bevel gear, through meshing with the second bevel gear, drives the fourth rotating shaft to rotate. This causes the fourth rotating shaft to drive the multiple sets of blades to rotate, allowing the multiple sets of blades to mix and stir the ink in the ink cartridge, preventing ink from settling unevenly at the bottom of the ink cartridge and improving the convenience of personnel mixing the ink in the ink cartridge.

[0009] Preferably, the linkage device includes two sets of discs, two sets of collars, two sets of support shafts, two sets of fixed teeth, two sets of limiting posts, two sets of torsion springs, and two sets of toothed rings. The two sets of discs are respectively mounted on the outer walls of the second and third rotating shafts. The two sets of collars are rotatably fitted onto the outer walls of the two sets of discs, and the inner walls of the two sets of collars are respectively provided with ratchet teeth, which are mirror-shaped. The two sets of support shafts are respectively mounted on the outer walls of the two sets of discs. The two sets of fixed teeth are rotatably mounted on the two sets of support shafts. The two sets of limiting posts are respectively mounted on the outer walls of the two sets of discs. The two sets of torsion springs are respectively fitted onto the outer walls of the two sets of support shafts, and the two sets of torsion springs are respectively engaged with the two sets of fixed teeth. The two sets of toothed rings are respectively... The device is fitted onto the outer walls of two sets of toothed rings, with each set meshing with a spur gear. When the spur gear rotates, it simultaneously drives both sets of toothed rings to rotate. When the spur gear rotates clockwise, it drives the right-side ring to rotate counter-clockwise. The ratchet on the right-side ring engages with the fixed teeth on the right side, causing the right-side disc to rotate. This, in turn, drives the second rotating shaft to rotate. When the spur gear rotates counter-clockwise, it drives the third rotating shaft through the engagement of the left-side ring and multiple sets of fixed teeth. This allows the handwheel to add ink and vent air from the cartridge when rotated clockwise, and to mix and stir the ink in the cartridge when rotated counter-clockwise. This improves the convenience of reusing printer cartridges and enhances the ease of adding ink.

[0010] Preferably, the assembly also includes a second cylinder, a sealing ring, a sealing plate, a connecting rod, a bracket, a base plate, and a second spring. The second cylinder is connected to the bottom end of the partition. The sealing ring is installed on the inner wall of the second cylinder. The bottom end of the sealing plate contacts the top end of the sealing ring. The top end of the connecting rod is connected to the bottom end of the sealing plate and the bottom end of the base plate. The bracket is installed on the inner wall of the second cylinder. The connecting rod slides through the inside of the bracket. The second spring is fitted onto the lower part of the outer wall of the connecting rod. When the piston moves upward and draws air into the ink cartridge through the first cylinder, the pressure causes the sealing plate to move upward, thereby venting the air in the ink cartridge outward. When the piston moves downward, the second spring pushes the base plate downward, causing the base plate to move downward through the connecting rod, thus allowing the sealing plate and the sealing ring to seal the second cylinder. This allows the air inside the first cylinder to be vented outward through the one-way exhaust valve, improving the convenience of air venting from the ink cartridge.

[0011] Preferably, the device also includes positioning rods, sleeves, and splines. Multiple positioning rods are installed on the top of the ink cartridge, multiple sleeves are installed on the bottom of the handwheel, and multiple splines are installed on the upper part of the outer wall of the first rotating shaft. A groove is provided in the middle of the handwheel, and the groove slides up and down onto the outer wall of the multiple splines. When it is necessary to rotate the handwheel, the handwheel is slid upward. After the handwheel moves upward, it causes the multiple sleeves to separate from the multiple positioning rods. When it is necessary to fix the handwheel, the handwheel is pressed downward, causing the handwheel to drive the multiple sleeves to fit onto the outside of the multiple positioning rods, thereby fixing the rotation of the handwheel and improving the positioning convenience of the handwheel.

[0012] Preferably, the pushing device includes a first pushing block and a second pushing block. The first pushing block is installed at the top of the second rotating shaft, and the second pushing block is installed at the bottom of the piston. The top of the first pushing block is provided with a protrusion, and the bottom of the second pushing block is provided with a groove. The first pushing block and the second pushing block are fitted together. When the second rotating shaft drives the first pushing block to rotate, the first pushing block pushes the second pushing block to move up and down reciprocally through the protrusion, thereby causing the second pushing block to drive the piston to move up and down reciprocally, improving the convenience of adding ink to the ink cartridge while venting air.

[0013] Preferably, it also includes a sealing cover and multiple sets of screws. An inspection port is provided on the outer wall of the ink cartridge, and the sealing cover is installed at the inspection port. The sealing cover is installed on the outer wall of the ink cartridge by multiple sets of screws. By opening the sealing cover, the convenience of internal inspection and maintenance of the ink cartridge is improved.

[0014] Preferably, it also includes a sealing plug, which is installed at the end of the one-way inlet valve; by installing the sealing plug at the end opening of the one-way inlet valve, the sealing and protection effect of the one-way inlet valve is improved.

[0015] Preferably, it also includes anti-slip texture, which is set on the outer wall of the handwheel; by setting anti-slip texture, the anti-slip effect of the handwheel gripping and rotating operation is improved, and the convenience of using the printer ink cartridge is improved.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: When the ink in the ink cartridge is used up, the operator connects the input end of the ink refilling device to the external ink storage tank. Then, by gripping the handwheel, the first rotating shaft and the spur gear are rotated clockwise or counterclockwise. When the spur gear rotates clockwise, it drives the ink refilling device to operate, allowing the ink refilling device to draw external ink and deliver it into the ink cartridge. At the same time, the ink refilling device expels air from inside the ink cartridge, thereby preventing ink leakage from the ink outlet due to increased internal pressure during ink refilling. After the ink cartridge is refilled, the spur gear is rotated counterclockwise, causing it to drive the mixing device to operate. The mixing device stirs the ink at the bottom of the ink cartridge, preventing ink deposition at the bottom of the ink cartridge, improving the uniformity of ink in the ink cartridge, increasing the convenience of reusing printer ink cartridges, reducing the complexity of manual ink refilling operations, and improving ink refilling efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the isometric structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the isometric structure connecting the first rotating shaft to the spur gear, etc.

[0019] Figure 3 This is a partial isometric structural diagram of the connection between the conveyor box and the one-way inlet valve, etc.

[0020] Figure 4 This is a partial isometric structural diagram of the connection between the disk and the collar, etc.

[0021] Figure 5 This is a partial isometric structural diagram of the connection between the support shaft and the fixed teeth, etc.

[0022] Figure 6 This is an isometric structural diagram of the connection between the partition and the second cylinder, etc.

[0023] Figure 7 This is a partial isometric structural diagram showing the connection between the connecting rod and the base plate, etc.

[0024] Figure 8 This is a partial isometric structural diagram of the connection between the handwheel and the sleeve, etc.

[0025] Figure 9 This is a partial isometric structural diagram showing the connection between the piston and the second push block, etc.

[0026] Figure 10 This is a partial isometric structural diagram of the conveyor box and impeller;

[0027] Figure 11 This is a schematic diagram of the isometric structure connecting the third rotating shaft and the bearing seat, etc.

[0028] Figure 12 This is a partial isometric structural diagram showing the connection between the second rotating shaft and the disk, etc.

[0029] Figure 13 This is a side view of the connection between the first bevel gear and the third rotating shaft, etc.

[0030] Figure 14 This is an isometric structural diagram showing the connection between the one-way exhaust valve and the first cylinder, etc.

[0031] Figure 15 This is a partial isometric structural diagram of the connection between the first rotating shaft and splines, etc.

[0032] Figure 16 This is an isometric partial structural diagram of the first and second push blocks.

[0033] In the attached diagram, the following markings are used: 101, ink cartridge; 102, ink outlet; 103, partition; 104, first rotating shaft; 105, handwheel; 106, spur gear; 201, conveyor box; 202, impeller; 203, one-way inlet valve; 204, discharge pipe; 205, second rotating shaft; 206, first cylinder; 207, one-way exhaust valve; 208, piston; 209, first spring; 301, shaft seat; 302, third rotating shaft; 303, first bevel gear; 304, fourth rotating shaft; 305, second bevel gear; 306, blade. 401. Disc; 402. Collar; 403. Support shaft; 404. Fixing tooth; 405. Limiting post; 406. Torsion spring; 407. Toothed ring; 501. Second cylinder; 502. Sealing ring; 503. Sealing plate; 504. Connecting rod; 505. Bracket; 506. Base plate; 507. Second spring; 601. Positioning rod; 602. Sleeve; 603. Spline; 701. First pushing block; 702. Second pushing block; 801. Sealing cover; 802. Screw; 901. Sealing plug; 1001. Anti-slip texture. Detailed Implementation

[0034] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0035] Example 1

[0036] like Figures 1 to 16As shown, a reusable inkjet printer cartridge of the present invention includes a cartridge 101 and an ink outlet 102, the ink outlet 102 being connected to the bottom of the cartridge 101; it also includes an ink filling device, a mixing device, a linkage device, a partition 103, a first rotating shaft 104, a handwheel 105, and a spur gear 106. The partition 103 is installed on the upper part of the inner side wall of the cartridge 101, the first rotating shaft 104 is rotatably installed on the top of the partition 103 and the top of the first rotating shaft 104 extends out of the cartridge 101, the handwheel 105 is installed on the top of the first rotating shaft 104, and the spur gear 106 is fitted on the outer side wall of the first rotating shaft 104. The ink filling device is disposed inside the cartridge 101 and is used to add ink and vent air from the cartridge 101. The mixing device is disposed inside the cartridge 101 and is used to mix and stir the ink inside the cartridge 101. The spur gear 106 drives the ink filling device and the mixing device respectively through the linkage device.

[0037] The ink filling device includes a pushing device, a conveying box 201, an impeller 202, a one-way inlet valve 203, an outlet pipe 204, a second rotating shaft 205, a first cylinder 206, a one-way exhaust valve 207, a piston 208, and a first spring 209. The conveying box 201 is installed at the bottom of the partition 103. The impeller 202 is located inside the conveying box 201. The one-way inlet valve 203 is connected to the right side of the conveying box 201, and the outlet pipe 204 is connected to the left side of the conveying box 201. The bottom end of the second rotating shaft 205 is rotatably installed on the inner wall of the conveying box 201, and the impeller 202 is fitted on the outer wall of the second rotating shaft 205. The first cylinder 206 is connected to the top of the ink cartridge 101. The one-way exhaust valve 207 is connected to the outer wall of the first cylinder 206. The piston 208 is slidably installed inside the first cylinder 206. The bottom end of the piston 208 is connected to the top end of the second rotating shaft 205 through the pushing device, and the first spring 209 is installed on the top end of the piston 208.

[0038] In this embodiment, when the ink in the ink cartridge 101 is depleted, the operator connects the input end of the ink refilling device to the external ink storage tank. Then, by gripping the handwheel 105, the operator drives the first rotating shaft 104 and the spur gear 106 to rotate clockwise or counterclockwise. When the spur gear 106 rotates clockwise, it drives the ink refilling device to operate, causing the device to draw and deliver external ink into the ink cartridge 101. At the same time, the device expels air from inside the ink cartridge 101, thus preventing ink leakage from the ink outlet 102 due to increased internal pressure during ink refilling. After ink refilling is complete, the operator rotates the spur gear 106 counterclockwise, causing it to drive the mixing device to operate. This mixes the ink at the bottom of the ink cartridge 101, preventing ink deposition at the bottom of the cartridge, improving ink uniformity, enhancing the convenience of reusing printer ink cartridges, reducing the complexity of manual ink refilling operations, and improving ink refilling efficiency.

[0039] Example 2

[0040] like Figures 1 to 16 As shown, a reusable inkjet printer cartridge of the present invention includes a cartridge 101 and an ink outlet 102, the ink outlet 102 being connected to the bottom of the cartridge 101; it also includes an ink filling device, a mixing device, a linkage device, a partition 103, a first rotating shaft 104, a handwheel 105, and a spur gear 106. The partition 103 is installed on the upper part of the inner side wall of the cartridge 101, the first rotating shaft 104 is rotatably installed on the top of the partition 103 and the top of the first rotating shaft 104 extends out of the cartridge 101, the handwheel 105 is installed on the top of the first rotating shaft 104, and the spur gear 106 is fitted on the outer side wall of the first rotating shaft 104. The ink filling device is disposed inside the cartridge 101 and is used to add ink and vent air from the cartridge 101. The mixing device is disposed inside the cartridge 101 and is used to mix and stir the ink inside the cartridge 101. The spur gear 106 drives the ink filling device and the mixing device respectively through the linkage device.

[0041] The ink filling device includes a pushing device, a conveying box 201, an impeller 202, a one-way inlet valve 203, an outlet pipe 204, a second rotating shaft 205, a first cylinder 206, a one-way exhaust valve 207, a piston 208, and a first spring 209. The conveying box 201 is installed at the bottom of the partition 103. The impeller 202 is located inside the conveying box 201. The one-way inlet valve 203 is connected to the right side of the conveying box 201, and the outlet pipe 204 is connected to the left side of the conveying box 201. The bottom end of the second rotating shaft 205 is rotatably installed on the inner wall of the conveying box 201, and the impeller 202 is fitted onto the outer wall of the second rotating shaft 205. The first cylinder 206 is connected to the top of the ink cartridge 101. The one-way exhaust valve 207 is connected to the outer wall of the first cylinder 206. The piston 208 is slidably installed inside the first cylinder 206. The bottom end of the piston 208 is connected to the top end of the second rotating shaft 205 through the pushing device, and the first spring 209 is installed on the top end of the piston 208.

[0042] The mixing device includes a bearing 301, a third rotating shaft 302, a first bevel gear 303, a fourth rotating shaft 304, a second bevel gear 305, and multiple sets of blades 306. The bearing 301 is mounted on the inner wall of the ink cartridge 101. The third rotating shaft 302 is rotatably mounted on the bearing 301. The first bevel gear 303 is mounted on the outer wall of the third rotating shaft 302. The fourth rotating shaft 304 is rotatably mounted on the inner wall of the ink cartridge 101. The second bevel gear 305 is mounted on the outer wall of the fourth rotating shaft 304 and meshes with the first bevel gear 303. Multiple sets of blades 306 are all mounted on the outer wall of the fourth rotating shaft 304.

[0043] The linkage device includes two sets of discs 401, two sets of collars 402, two sets of support shafts 403, two sets of fixing teeth 404, two sets of limiting posts 405, two sets of torsion springs 406, and two sets of toothed rings 407. The two sets of discs 401 are respectively mounted on the outer walls of the second rotating shaft 205 and the third rotating shaft 302. The two sets of collars 402 are rotatably fitted onto the outer walls of the two sets of discs 401, and the inner walls of the two sets of collars 402 are respectively provided with ratchet teeth. The ratchet teeth on the two sets of collars 402 are mirror images of each other. The two sets of support shafts 403... Shaft 403 is respectively installed on the outer side wall of two sets of discs 401, two sets of fixed teeth 404 are respectively rotatably installed on two sets of support shafts 403, two sets of limiting pins 405 are respectively installed on the outer side wall of two sets of discs 401, two sets of torsion springs 406 are respectively fitted on the outer side wall of two sets of support shafts 403, and the two sets of torsion springs 406 are respectively engaged with the two sets of fixed teeth 404, and two sets of toothed rings 407 are respectively fitted on the outer side wall of two sets of collars 402, and the two sets of toothed rings 407 mesh with spur gears 106 respectively;

[0044] It also includes a second cylinder 501, a sealing ring 502, a sealing plate 503, a connecting rod 504, a bracket 505, a bottom plate 506, and a second spring 507. The second cylinder 501 is connected to the bottom end of the partition plate 103. The sealing ring 502 is installed on the inner wall of the second cylinder 501. The bottom end of the sealing plate 503 contacts the top end of the sealing ring 502. The top end of the connecting rod 504 is connected to the bottom end of the sealing plate 503. The bottom end of the connecting rod 504 is connected to the top end of the bottom plate 506. The bracket 505 is installed on the inner wall of the second cylinder 501. The connecting rod 504 slides through the inside of the bracket 505. The second spring 507 is fitted and sleeved on the lower part of the outer wall of the connecting rod 504.

[0045] It also includes positioning rods 601, sleeves 602 and splines 603. Multiple sets of positioning rods 601 are installed on the top of ink cartridge 101, multiple sets of sleeves 602 are installed on the bottom of handwheel 105, and multiple sets of splines 603 are installed on the upper part of the outer side wall of the first rotating shaft 104. A groove is provided in the middle of the handwheel 105, and the groove slides up and down and fits on the outer side wall of multiple sets of splines 603.

[0046] The pushing device includes a first pushing block 701 and a second pushing block 702. The first pushing block 701 is installed at the top of the second rotating shaft 205, and the second pushing block 702 is installed at the bottom of the piston 208. The top of the first pushing block 701 is provided with a protrusion, and the bottom of the second pushing block 702 is provided with a groove. The first pushing block 701 and the second pushing block 702 are fitted together.

[0047] It also includes a sealing cover 801 and multiple sets of screws 802. An inspection port is provided on the outer wall of the ink cartridge 101. The sealing cover 801 is installed at the inspection port and is installed on the outer wall of the ink cartridge 101 by multiple sets of screws 802.

[0048] It also includes a sealing plug 901, which is installed at the end of the one-way inlet valve 203;

[0049] It also includes anti-slip texture 1001, which is provided on the outer wall of the handwheel 105;

[0050] In this embodiment, when the spur gear 106 rotates clockwise, it drives the second rotating shaft 205 to rotate via a linkage device. The rotation of the second rotating shaft 205 then drives the impeller 202 to rotate, causing the impeller 202 to draw ink from the outside through the one-way inlet valve 203. The drawn ink is discharged into the ink cartridge 101 through the outlet pipe 204. Simultaneously, the rotation of the second rotating shaft 205 drives the pushing device, causing it to reciprocate by pushing the piston 208 upwards. The first spring 209 provides a downward pushing force to the piston 208, causing it to reciprocate up and down. When the piston 208 moves upwards, it draws air into the ink cartridge 101. When the piston 208 moves downwards, it discharges the air from the first cylinder 206 through the one-way exhaust valve 207. This allows the ink cartridge 101 to actively vent air while being filled with ink, preventing an increase in pressure inside the cartridge 101, improving the ease of use of the printer cartridge, and increasing ink filling efficiency. When the spur gear 106 rotates counterclockwise, it drives the third rotating shaft 302 to rotate via a linkage device. The rotation of the third rotating shaft 302 drives the first bevel gear 303 to rotate. The rotation of the first bevel gear 303, through meshing with the second bevel gear 305, drives the fourth rotating shaft 304 to rotate. This causes the fourth rotating shaft 304 to drive multiple sets of blades 306 to rotate, allowing the multiple sets of blades 306 to mix and stir the ink in the cartridge 101, preventing uneven ink deposition at the bottom of the cartridge 101 and improving the convenience of personnel mixing the ink in the cartridge 101.

[0051] The present invention discloses a reusable inkjet printer cartridge. During operation, when the ink in cartridge 101 is depleted, the operator connects the input end of the ink refilling device to an external ink reservoir. Then, by gripping the handwheel 105, the first rotating shaft 104 and the spur gear 106 are rotated clockwise or counterclockwise. When the spur gear 106 rotates clockwise, it drives the ink refilling device to extract and deliver external ink into cartridge 101. Simultaneously, the ink refilling device expels air from inside cartridge 101. After ink refilling is complete, the spur gear 106 is rotated counterclockwise, causing it to drive a mixing device that agitates the ink at the bottom of cartridge 101.

[0052] The main functions achieved by this invention are: when the handwheel 105 is rotated clockwise, it adds ink and vents air into the ink cartridge 101; when the handwheel 105 is rotated counterclockwise, it mixes and stirs the ink in the ink cartridge 101, thus preventing ink leakage during ink addition, preventing ink deposition, improving the convenience of repeated use, reducing the complexity of manual ink addition operations, and improving ink addition efficiency.

[0053] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A reusable inkjet printer cartridge, comprising a cartridge (101) and an ink discharge port (102), the ink discharge port (102) being disposed at the bottom end of the cartridge (101); characterized in that, It also includes an ink filling device, a mixing device, a linkage device, a partition (103), a first rotating shaft (104), a handwheel (105), and a spur gear (106). The partition (103) is installed on the upper part of the inner side wall of the ink cartridge (101). The first rotating shaft (104) is rotatably installed on the top of the partition (103), and the top of the first rotating shaft (104) extends out of the ink cartridge (101). The handwheel (105) is installed on the top of the first rotating shaft (104). The spur gear (106) is fitted on the outer side wall of the first rotating shaft (104). The ink filling device is located inside the ink cartridge (101) and is used to add ink and vent air from the ink cartridge (101). The mixing device is located inside the ink cartridge (101) and is used to mix and stir the ink inside the ink cartridge (101). The spur gear (106) drives the ink filling device and the mixing device respectively through the linkage device. The ink-filling device includes a pushing device, a conveying box (201), an impeller (202), a one-way inlet valve (203), a discharge pipe (204), a second rotating shaft (205), a first cylinder (206), a one-way exhaust valve (207), a piston (208), and a first spring (209). The conveying box (201) is installed at the bottom of the partition plate (103), the impeller (202) is located inside the conveying box (201), the one-way inlet valve (203) is connected to the right side of the conveying box (201), and the discharge pipe (204) is connected to the conveying box (201). On the left, the bottom end of the second rotating shaft (205) is rotatably mounted on the inner wall of the conveyor box (201), and the impeller (202) is fitted on the outer wall of the second rotating shaft (205). The first cylinder (206) is connected to the top of the ink cartridge (101). The one-way exhaust valve (207) is connected to the outer wall of the first cylinder (206). The piston (208) is slidably mounted inside the first cylinder (206). The bottom end of the piston (208) is connected to the top end of the second rotating shaft (205) through a pushing device. The first spring (209) is fitted on the top end of the piston (208). The mixing device includes a bearing seat (301), a third rotating shaft (302), a first bevel gear (303), a fourth rotating shaft (304), a second bevel gear (305), and multiple sets of blades (306). The bearing seat (301) is mounted on the inner wall of the ink cartridge (101). The third rotating shaft (302) is rotatably mounted on the bearing seat (301). The first bevel gear (303) is mounted on the outer wall of the third rotating shaft (302). The fourth rotating shaft (304) is rotatably mounted on the inner wall of the ink cartridge (101). The second bevel gear (305) is mounted on the outer wall of the fourth rotating shaft (304), and the second bevel gear (305) meshes with the first bevel gear (303). Multiple sets of blades (306) are all mounted on the outer wall of the fourth rotating shaft (304).

2. The reusable inkjet printer cartridge as described in claim 1, characterized in that, The linkage device includes two sets of discs (401), two sets of collars (402), two sets of support shafts (403), two sets of fixing teeth (404), two sets of limiting posts (405), two sets of torsion springs (406), and two sets of toothed rings (407). The two sets of discs (401) are respectively installed on the outer walls of the second rotating shaft (205) and the third rotating shaft (302). The two sets of collars (402) are respectively rotatably fitted onto the outer walls of the two sets of discs (401), and the inner walls of the two sets of collars (402) are respectively provided with ratchet teeth. The ratchet teeth on the two sets of collars (402) are mirror images of each other. Shafts (403) are respectively installed on the outer walls of two sets of discs (401), two sets of fixed teeth (404) are respectively rotatably installed on two sets of support shafts (403), two sets of limiting posts (405) are respectively installed on the outer walls of two sets of discs (401), two sets of torsion springs (406) are respectively fitted on the outer walls of two sets of support shafts (403), and the two sets of torsion springs (406) are respectively fitted with the two sets of fixed teeth (404), and the two sets of toothed rings (407) are respectively fitted on the outer walls of two sets of collars (402), and the two sets of toothed rings (407) are respectively meshed with spur gears (106).

3. A reusable inkjet printer cartridge as described in claim 1, characterized in that, It also includes a second cylinder (501), a sealing ring (502), a sealing plate (503), a connecting rod (504), a bracket (505), a base plate (506), and a second spring (507). The second cylinder (501) is connected to the bottom end of the partition plate (103). The sealing ring (502) is installed on the inner wall of the second cylinder (501). The bottom end of the sealing plate (503) contacts the top end of the sealing ring (502). The top end of the connecting rod (504) is connected to the bottom end of the sealing plate (503). The bottom end of the connecting rod (504) is connected to the top end of the base plate (506). The bracket (505) is installed on the inner wall of the second cylinder (501). The connecting rod (504) slides through the inside of the bracket (505). The second spring (507) is fitted on the lower part of the outer wall of the connecting rod (504).

4. A reusable inkjet printer cartridge as described in claim 1, characterized in that, It also includes positioning rods (601), sleeves (602) and splines (603). Multiple positioning rods (601) are installed on the top of the ink cartridge (101), multiple sleeves (602) are installed on the bottom of the handwheel (105), and multiple splines (603) are installed on the upper part of the outer wall of the first rotating shaft (104). The handwheel (105) has a groove in the middle, which slides up and down on the outer wall of the multiple splines (603).

5. A reusable inkjet printer cartridge as described in claim 2, characterized in that, The pushing device includes a first pushing block (701) and a second pushing block (702). The first pushing block (701) is installed on the top of the second rotating shaft (205), and the second pushing block (702) is installed on the bottom of the piston (208). The top of the first pushing block (701) is provided with a protrusion, and the bottom of the second pushing block (702) is provided with a groove. The first pushing block (701) and the second pushing block (702) are fitted together.

6. A reusable inkjet printer cartridge as described in claim 1, characterized in that, It also includes a sealing cover (801) and multiple sets of screws (802). An inspection port is provided on the outer wall of the ink cartridge (101). The sealing cover (801) is installed at the inspection port and is installed on the outer wall of the ink cartridge (101) by multiple sets of screws (802).

7. A reusable inkjet printer cartridge as described in claim 2, characterized in that, It also includes a sealing plug (901), which is installed at the end of the one-way inlet valve (203).

8. A reusable inkjet printer cartridge as described in claim 1, characterized in that, It also includes anti-slip texture (1001), which is set on the outer wall of the handwheel (105).

Images