CN218343094U - Ink filling device - Google Patents

Abstract

The utility model relates to an ink filling device for being arranged in to waiting to fill ink in the ink container, ink filling device is including the shell that is formed with first cavity and second cavity, and first cavity is used for holding waiting to fill the ink container, and the second cavity is used for holding can being filled to the ink of waiting to fill the ink container, and ink filling device still includes the liquid-transfering needle of first cavity of intercommunication and second cavity and the protection subassembly that surrounds the needle point of liquid-transfering needle at least, through this protection subassembly, the user can prevent to be pricked by the liquid-transfering needle when using this ink filling device.

Description

Ink filling device

Technical Field

The utility model relates to a device for being directed at ink container is filled with ink.

Background

A conventional ink container such as an ink cartridge or an ink bottle includes a housing for containing ink and an ink outlet portion provided in the housing, the ink is directly or indirectly supplied to an inkjet image forming apparatus through the ink outlet portion, and a user needs to replace a new ink container after the ink is consumed.

The prior ink filling device generally uses a pipette needle as a pipette member for communicating an ink supply member and an ink container, and there is a risk of being pricked by the pipette needle during use of the ink filling device by a user.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ink filling device can prevent that the user from being pricked by the pipetting needle in the use, and this ink filling device adopts following technical scheme:

the ink filling device comprises a shell which is provided with a first cavity and a second cavity, the first cavity is used for containing the ink container to be filled, the second cavity is used for containing ink which can be filled into the ink container to be filled, the ink filling device further comprises a liquid transferring needle which is communicated with the first cavity and the second cavity and a protection assembly which at least surrounds the needle point of the liquid transferring needle, and a user can be prevented from being pricked by the liquid transferring needle when using the ink filling device through the protection assembly.

In some embodiments, the pipetting needle protrudes from the bottom surface of the first chamber, and the protective element surrounds the needle tip from the circumferential direction of the pipetting needle.

Preferably, at least a part of the protective assembly is movable between a protective position in which the tip of the pipetting needle is enclosed and a non-protective position in which the tip of the pipetting needle is not enclosed.

Specifically, the protection assembly includes an elastic member and a second protection member abutting against each other, the second protection member is urged by the second elastic member to move to a protection position before the ink container to be filled is mounted to the first cavity, and the second protection member moves from the protection position toward the non-protection position as the ink container to be filled is mounted to the first cavity.

Preferably, the second protection member is made of silicone; the elastic member and the second protection member are connected to each other.

Preferably, the protection assembly further comprises a needle cap detachably combined with the pipetting needle; the needle cap is in interference fit with the liquid transferring needle.

When the needle cap is mounted, at least the portion of the protective assembly that is intended to surround the needle tip is in a compressed state and does not surround the needle tip.

In some embodiments, the ink filling apparatus further comprises a cover member coupled to the housing, the pipette needle being configured to be retractable with opening and closing of the cover member.

Drawings

Fig. 1 is a perspective view of an ink filling device according to the present invention.

Fig. 2A and 2B are perspective views of a housing of the ink filling device according to the present invention.

Fig. 2C is a perspective view of the housing cut along the direction BB in fig. 1.

Fig. 3A and 3B are perspective views of an ink container to which the ink filling device of the present invention is applied.

Fig. 4 is an exploded view of the ink filling device according to the present invention, with parts separated from the ink container.

Fig. 5 is an exploded view of the suction unit and the connection pipe assembly of the ink filling device according to the present invention, separated from the housing.

Fig. 6A is a cross-sectional view of the ink filling device taken along a direction BB in fig. 1.

Fig. 6B is a sectional view of the ink filling device taken along the direction CC in fig. 1.

Fig. 6C is a sectional view of the ink filling device taken along direction DD in fig. 1.

Fig. 7A is a schematic view showing a state of a protective member in the ink filling apparatus during transportation.

Fig. 7B is a schematic view of the state of the protective member after the ink container is separated from the housing 11.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[ Overall Structure of ink filling apparatus ]

Fig. 1 is a perspective view of an ink filling device according to the present invention; fig. 2A and 2B are perspective views of a housing of the ink filling device according to the present invention; fig. 2C is a perspective view of the housing taken along direction BB in fig. 1; fig. 3A and 3B are perspective views of an ink container to which the ink filling device of the present invention is applied.

First, referring to fig. 3A and 3B, an ink container to which the ink filling device 100 of the present invention is applied is described, and generally, the ink container 4 is a container that can directly or indirectly supply ink to an image forming apparatus, and the ink container 4 may be an ink cartridge directly mounted to the image forming apparatus, or an ink bottle/ink tank or the like for supplying ink to the ink cartridge.

The ink cartridge 4 includes a case 41 accommodating ink, and a face cover 43 coupled to the case 41, the case 41 being provided with an ink discharge portion 42 for discharging ink to the outside, the face cover 43 being provided with a communication port 44 communicable with the outside atmosphere.

The ink filling apparatus 100 includes a main assembly 1, a suction device 2, and a connection pipe assembly 3, the suction device 2 being in fluid communication with the main assembly 1 through the connection pipe assembly 3; the main assembly 1 includes a housing, a fixing member 12, and a suction receiver 13, the fixing member 12 is for fixing the ink cartridge 4 to be refilled so as to perform refilling operation of the ink cartridge 4 to be refilled, the fixing position of the ink cartridge 4 to be refilled should not be restricted, i.e., the ink cartridge 4 to be refilled may be either fixed in the housing 11 by the fixing member 12 or fixed outside the housing 11 by the fixing member 12, and the fixing member 12 may be a fixing frame/plate provided separately from the housing 11 or a cover member movably connected to the housing 11, and preferably, the fixing member 12 is provided as the cover member to which the ink cartridge 4 to be refilled is to be fixed in the housing 11 by the cover member 12.

The aspirator receiving portion 13 is formed integrally with the housing 11, and the structure of the ink filling device 100 as a whole will become more compact. For convenience of description, the ink filling device 100 has an upper side and a lower side as shown in the drawing with respect to a posture in which the ink filling device 100 is placed in use, wherein at least a part of the aspirator 2 is located at the upper side.

[ outer case ]

The housing 11 includes a first cavity 11b and a second cavity 11c which are distributed in the up-down direction, and a first partition plate 11a which is located between the first cavity 11b and the second cavity 11c, the first cavity 11b is opened upward, the second cavity 11c is opened downward, the first partition plate 11a having a communication channel 17 is provided between the first cavity 11b and the second cavity 11c, preferably, the communication channel 17 is provided with a third sealing member 163 described below to ensure that the first cavity 11b and the second cavity 11c can be isolated from each other, and when the liquid-transferring member 6 which is communicated with the second cavity 11c passes through the third sealing member 163, the first cavity 11b and the second cavity 11c can be communicated.

The aspirator receiving portion 13 is provided as a cavity having at least an opening portion 133, and thus, the aspirator receiving portion 13 may also be referred to as an aspirator receiving portion, at least a portion of the aspirator 2 is received in the aspirator receiving portion 13, and the opening portion 133 may be provided in a direction facing in accordance with a use habit of a user, either upward or in a direction intersecting with an up-down direction, and an embodiment in which the opening portion 133 is upward is illustrated in the drawing.

The first cavity 11b and the second cavity 11c are arranged adjacent to the aspirator receiving portion 13 in a direction intersecting the up-down direction, a waste liquid collecting cavity 11f is further provided below the aspirator receiving portion 13 in the up-down direction, a second partition plate 131 is provided between the aspirator receiving portion 13 and the waste liquid collecting cavity 11f, and the aspirator receiving portion 13 and the waste liquid collecting cavity 11f are communicated through a fourth communicating portion (waste liquid discharge portion) 25 located on the second partition plate 131; further, the ink filling apparatus 100 further includes a closing plate 11d coupled to the housing 11, the closing plate 11d being disposed below the housing 11 and covering the second chamber 11c and the waste liquid collecting chamber 11f, the second chamber 11c not being communicated with the waste liquid collecting chamber 11f in a direction intersecting with the left-right direction.

The second chamber 11c is used for containing ink which can be filled into the ink cartridge 4 to be filled, and therefore, the second chamber 11c can also be referred to as an ink supply chamber, the ink can be directly contained by the second chamber 11c, and can also be contained in a replaceable unit 5 (such as an ink cartridge, an ink bag, and the like), the replaceable unit 5 is contained by the second chamber 11c, when the ink in the replaceable unit 5 is consumed, the user can continue to use the ink filling device 100 by directly replacing the replaceable unit 5; the pipetting piece 6 is used for communicating the first cavity 11b with the second cavity 11c, the pipetting piece 6 is directly communicated with the first cavity 11b and the second cavity 11c, and the pipetting piece 6 is communicated with the replaceable unit 5 positioned in the second cavity 11c and the first cavity 11b.

[ aspirator and seal Assembly ]

Fig. 4 is an exploded view of the ink filling apparatus according to the present invention with parts separated from the ink container; FIG. 5 is an exploded view of the suction and connection tube assembly of the ink filling apparatus of the present invention, separated from the housing; FIG. 6A is a cross-sectional view of the ink filling apparatus taken along the direction BB in FIG. 1; FIG. 6B is a sectional view of the ink filling apparatus taken along the direction CC in FIG. 1; fig. 6C is a sectional view of the ink filling device taken along direction DD in fig. 1.

The aspirator 2 comprises a main body 21 and a piston 22 movably installed in the main body 21, wherein the main body 21 can be formed separately from the housing 11 or integrally with the housing 11, obviously, when the main body 21 is formed integrally with the housing 11, it is more advantageous to simplify the structure of the ink filling device 100, and accordingly, when the main body 21 is formed separately from the housing 11, the fixed connection of the main body 21 to the housing 11 can also serve the purpose of simplifying the structure of the ink filling device 100, and thus, the main body and the housing 11 integrally form two cases, namely, when the housing 11 is produced, the main body 21 is formed in the housing 11; in the second case, the housing 11 and the main body 21 are separately produced, and then the housing 11 and the main body 21 are fixedly coupled. As shown in the drawing, at least a part of the piston 22 is disposed in the aspirator receiving portion 13, and thus, the inner wall 132 of the aspirator receiving portion 13 can be regarded as the main body 21, and the plug body 221 of the piston is in contact with the inner wall 132.

The sealing assembly 16 includes a third sealing member 163 for providing a seal between the pipetting member 6 and the ink cartridge 4 to be filled, and a first sealing member 161 for sealing the ink outlet 42, and the cover member 12 is provided with a first communication port 121 communicating with the ink outlet 42, specifically, the first communication port 121 communicates with the ink outlet 42 through the first sealing member 161, that is, the fluid (ink or gas) flowing out of the ink outlet 42 needs to pass through the first sealing member 161 and reach the first communication port 121, and generally, the ink flowing out of the ink outlet 42 is absorbed by the first sealing member 161, and the gas enters the first communication port 121.

Further, the seal assembly 16 further includes a second sealing member 162 disposed adjacent to the first sealing member 161, preferably, the first sealing member 161 and the second sealing member 162 are in contact with each other or communicate through a communication channel, specifically, the first sealing member 161 and the second sealing member 162 are respectively disposed on both sides of the cover member 12, that is, the first sealing member 161 is disposed on a side of the cover member 12 facing the first cavity 11 b/the ink cartridge 4 to be filled, the second sealing member 162 is disposed on a side of the cover member 12 facing away from the first cavity 11 b/the ink cartridge 4 to be filled, and both are communicated through the first communication port 121, and the second sealing member 162 is located downstream of the first sealing member 161 on a fluid flow path drawn out from the ink cartridge 4 to be filled, or the second sealing member 162 is farther from the ink outlet 42 than the first sealing member 161; as shown, the cover member 12 is provided with a receiving groove 129 that receives the second seal member 162 and a second communication port 122 that is in fluid communication with the receiving groove 129, and the connection pipe assembly 3 is in communication with the second communication port 122.

More preferably, the density of the first sealing member 161 is lower than that of the second sealing member 162, and the residual ink absorbed by the first sealing member 161 is transferred to the second sealing member 162, so that even if mixed color ink is absorbed by the first sealing member 161, the mixed color ink does not adhere to the vicinity of the ink outlet portion 42; meanwhile, after the fluid sucked out from the ink outlet portion 42 is filtered by the first seal 161 and the second seal 162, the residual ink is substantially adsorbed by at least one of the first seal 161 and the second seal 162, and finally only the residual air will enter the connection pipe assembly 3 through the second communication port 122, thereby further preventing the leakage of the residual ink.

As shown, the sealing assembly 16 further comprises a fifth seal 165 for covering the second seal 162, on the one hand, the fifth seal 165 can prevent the ink absorbed by the second seal 162 from leaking, and on the other hand, the fifth seal 165 can also be used to create a negative pressure between the connecting tube assembly 3 and the second communication port 122, ensuring that the fluid drawn out from the ink cartridge 4 to be filled can flow along a predetermined path.

Further, the seal assembly 16 further includes a sixth seal 166 mounted on the opening portion 133, the piston 22 passes through the sixth seal 166, the sixth seal 166 is provided with a grip portion 1661, the housing 11 is provided with a matching portion 11e matched with the grip portion 1651, and a user can mount and dismount the sixth seal 166 through the grip portion 1661, when the sixth seal 166 is mounted, the grip portion 1661 is matched with the matching portion 11e, and preferably, the matching portion 11e is a groove capable of accommodating the grip portion 1661; with reference to fig. 6A, 6B, and 6C, the sixth seal 166 is provided with a first communicating portion 141 and a second communicating portion 142, the second partition plate 131 is provided with a third communicating portion 23 and a fourth communicating portion 25, and the first communicating portion 141, the second communicating portion 142, the third communicating portion 23, and the fourth communicating portion 25 are all provided as one-way valves, that is, the first communicating portion 141, the second communicating portion 142, the third communicating portion 23, and the fourth communicating portion 25 can all be opened only in one direction; as shown in fig. 6B and 6C, the check valve includes urging pieces 34 and sealing bodies 33, and the sealing bodies 33 always maintain the respective communication portions in the closed state by the urging action of the urging pieces 34.

Specifically, the urging members 34 in the first communicating portion 141 and the fourth communicating portion 25 urge the sealing body 33 upward, and the urging members 34 in the second communicating portion 142 and the third communicating portion 23 urge the sealing body 33 downward, and thus, the aspirator containing portion 13 is in the closed state; the sixth seal 166 provided with the first and second communication portions 141 and 142 and the second partition plate 131 provided with the third and fourth communication portions 23 and 25 may be regarded as part of the aspirator receiving portion 13.

The connection pipe assembly 3 includes a first connection pipe 31 and a second connection pipe 32, one end of the first connection pipe 31 communicates with the third communicating portion 23, the other end communicates with the second communicating port 122, one end of the second connection pipe 32 communicates with the second communicating portion 142, the other end communicates with the second chamber 11c, one end of the first communicating portion 141 is connected with the aspirator containing portion 13, the other end communicates with the atmosphere, one end of the fourth communicating portion 25 is connected with the aspirator containing portion 13, and the other end communicates with the waste liquid collecting chamber 11f.

[ working procedure of ink filling apparatus ]

Before starting filling the ink cartridge 4 to be filled, it is necessary to put the ink cartridge 4 to be filled into the first cavity 11b in an inverted posture (the ink outlet portion 42 is upward) and then fix the ink cartridge 4 to be filled by the fixing member 12.

Subsequently, the user pulls the piston 22 upward, the gas in the aspirator receiving portion 13 presses the sealing body 33 in the second communicating portion 142, so that the urging member 34 in the second communicating portion 142 is elastically deformed, the second communicating portion 142 is changed from the sealed state to the opened state, the gas in the aspirator receiving portion 13 can enter the second chamber 11c, and the ink contained in the second chamber 11c is pressed by the entered gas, and further enters the ink cartridge 4 to be filled through the pipetting member 6.

During the upward movement of the piston 22, a negative pressure is formed between the plug body 221 and the second partition 131, the sealing body 33 in the third communicating portion 23 forces the urging member 34 to be elastically deformed, the third communicating portion 23 is changed from the sealed state to the open state, the fluid (waste ink or air) in the ink cartridge 4 to be filled is sequentially drawn into the aspirator holding portion 13 through the first sealing member 161, the second sealing member 162, the first connecting pipe 31, and the third communicating portion 23, that is, the fluid in the ink cartridge 4 to be filled is drawn out simultaneously with the ink filling operation into the ink cartridge 4 to be filled, the fluid in the vicinity of the ink outlet portion 42 can be drawn out, and the filled ink can enter the vicinity of the ink outlet portion 42, and when the ink cartridge 4 to be filled is used by a user, the ink can be supplied from the ink outlet portion 42 in time without the ink or the ink shortage phenomenon in the ink outlet portion 42, and the problem of printing defects can occur.

Further, during the upward movement of the piston 22, the first communicating portion 141 and the fourth communicating portion 25 are always kept in the closed state, and when the piston 22 starts to move downward, contrary to the above-mentioned process, the first communicating portion 141 and the fourth communicating portion 25 are opened, while the second communicating portion 142 and the third communicating portion 23 are always in the closed state, the opening of the first communicating portion 141 allows the external atmosphere to enter the aspirator receiving portion 13 through the first communicating portion 141, and the opening of the fourth communicating portion 25 allows the aforementioned fluid drawn out of the ink cartridge 4 to be filled to be discharged to the waste liquid collecting chamber 11f.

As is apparent from the above description, the movement of the piston 22 in the aspirator receiving portion 13 causes the gas in the aspirator receiving portion 13 to enter the second chamber 11c, and thus, the aspirator receiving portion 13 may also be referred to as a gas replenishing chamber 14; the opening of the first communicating portion 141 can be used to replenish gas into the gas replenishment chamber 14, the opening of the second communicating portion 142 can cause gas in the gas replenishment chamber 14 to enter the second chamber 11c, the opening of the third communicating portion 23 can cause fluid in the ink cartridge 4 to be filled to enter the gas replenishment chamber 14, and the opening of the fourth communicating portion 25 can cause fluid entering the gas replenishment chamber 14 to be discharged to the waste liquid collection chamber 1f, and thus, the first communicating portion 141 can also be referred to as a gas inlet portion, the second communicating portion 142 can also be referred to as a gas outlet portion, the third communicating portion 23 can also be referred to as a fluid inlet portion, and the third communicating portion 25 can also be referred to as a fluid outlet portion, and during the upward movement of the piston 22, the gas outlet portion 142 and the fluid inlet portion 23 are opened, and the gas inlet portion 141 and the fluid outlet portion 25 are closed, and during the downward movement of the piston 22, the gas outlet portion 142 and the fluid inlet portion 23 are closed, and the fluid outlet portion 25 is opened.

It can be seen that integrating the aspirator holding portion 13, the gas replenishing chamber 14, and the aspirator body 21 together can effectively simplify the structure of the ink filling device 100 and improve the use efficiency of the user; further, providing the gas inlet 141, the gas outlet 142, the fluid inlet 23, and the fluid outlet 25 in the aspirator receiving portion 13 enables the fluid in the ink cartridge 4 to be filled to be drawn out during the upward movement of the piston 22, and at the same time, the ink in the second chamber 11c is filled in the ink cartridge 4 to be filled, and during the downward movement of the piston 22, the external atmosphere is replenished to the aspirator receiving portion 13, and the fluid drawn into the aspirator receiving portion 13 is discharged, and the user can operate the piston 22 to move many times until the ink cartridge 4 to be filled is filled with ink.

Specifically, the gas inlet portion 141 and the gas outlet portion 142 are disposed above the plug body 221, and the fluid inlet portion 23 and the fluid outlet portion 25 are disposed below the plug body 221, so that the inlet atmosphere is not mixed with the pumped fluid during the movement of the piston 22, thereby ensuring that the ink in the second chamber 11c is not contaminated.

According to the above inventive concept, the ink filling apparatus 100 may be further configured such that, when the piston 22 moves downward, the fluid in the ink cartridge 4 to be filled is drawn out while the ink in the second chamber 11c is replenished to the ink cartridge 4 to be filled, and when the piston 22 moves upward, the external atmosphere is replenished to the aspirator receiving portion 13 and the fluid drawn into the aspirator receiving portion 13 is discharged.

[ protective component ]

FIG. 7A is a schematic view showing the state of the protective member in the ink filling apparatus during transportation; fig. 7B is a schematic view showing the state of the protection member after the ink container is separated from the housing 11.

In practice, the pipetting device 6 is preferably a needle (pipetting needle), as shown in fig. 4, the pipetting needle 6 protrudes from the bottom surface of the first cavity 11b (the surface of the first partition 11a facing the first cavity 11 b), specifically, the tip (end) of the pipetting needle 6 is located in the first cavity 11b, and when the user opens the cover 12, the tip of the pipetting needle 6 is exposed.

In order to prevent the user from being pricked by the pipetting needle 6, the ink filling device 100 further comprises a protection assembly 7, as shown in the figure, the protection assembly 7 comprises a second protection member 72 and an elastic member 73 which abut against each other, specifically, the elastic member 73 and the second protection member 72 are connected with each other and are arranged in the first cavity 11b, the elastic member 73 is used for urging the second protection member 72 towards the direction of the needle point, before the ink cartridge 4 to be filled is mounted to the first cavity 11b, the second protection member 72 surrounds the needle point of the pipetting needle 6, preferably, the second protection member 72 is urged to exceed the needle point, the pipetting needle 6 is cylindrical, and the second protection member 72 surrounds the needle point along the circumferential direction of the pipetting needle 6.

When the cartridge 4 to be refilled is mounted in the first chamber 11b, the elastic element 73 is pressed and elastically deformed, the second protection element 72 moves towards the direction close to the first partition 11a to reach a non-protection position in which it cannot surround the tip of the pipetting needle, the pipetting needle 6 can enter the cartridge 4 to be refilled, that is to say the second protection element 72 can move between said protection position and said non-protection position; when the cartridge 4 to be refilled is removed from the first cavity 11b, the elastic member 73 forces the second protection member 72 to move to a protection position at least enclosing the needle tip, thus preventing the user from being pricked by the pipetting needle 6; further extended, when the ink filling device 100 is in the way of transportation, since the ink cartridge 4 to be filled is not mounted to the first cavity 11b, the second protector 72 will be in the protection position at least surrounding the needle tip, and the user will not be pricked by the pipetting needle 6 when opening the lid 12.

Alternatively, the second protector 72 may be made of a hard material or a flexible material as long as it can at least surround the needle point to prevent the user from being injured by pricking, and preferably, the second protector 72 is made of silicone, so that the second protector 72 has a certain hardness, and even if the user applies a certain force to the second protector 72, the needle point of the pipette needle will not prick the user.

Further, the protection assembly 7 further includes a first protection member 71, when the ink filling device 100 is in transportation, the first protection member 71 can protect the pipetting needle 6, preferably, the first protection member 71 is provided as a needle cap detachably combined with the pipetting needle 6, when the ink filling device 100 is assembled in a factory, the first protection member 71 is mounted to the pipetting needle 6 in an interference fit manner, at this time, by using the friction force between the first protection member 71 and the pipetting needle 6, the second protection member 72 and the elastic member 73 are in a pressed state, the second protection member 72 does not play a protection role, when a user starts to use the ink filling device 100, the first protection member 71 is firstly removed, the elastic member 73 releases the elastic force, the second protection member 72 is pushed to a protection position at least surrounding the needle point, and the first protection member 71 can be discarded or can be kept for continuous use.

The first protector 71 protects the pipetting needle 6 during transportation of the ink filling apparatus 100, and thus the second protector 72 is prevented from being separated from the protection position surrounding at least the needle tip and damaging the pipetting needle 6 during transportation of the ink filling apparatus 100 due to shock.

In some embodiments, the pipetting needle 6 may be configured to move/telescope in the up-down direction, for example, before the user uses the ink filling device 100, the pipetting needle 6 is in a retracted state, in which the tip of the pipetting needle 6 does not enter the first cavity 11b, when the user opens the cover 12, the pipetting needle 6 extends upward, and the tip of the pipetting needle 6 enters the first cavity 11b, which may also prevent the pipetting needle 6 from being damaged during transportation of the ink filling device 100; the second protector 72 and the elastic member 73 described above can also be used to protect a user from being pricked by a needle tip during use of the ink filling apparatus 100.

Further, the pipetting needle 6 may also be arranged to be retracted with the cover 12 open and to be extended with the cover 12 closed, so that the user is not injured by the pipetting needle 6 in the retracted state after opening the cover 12.

As described above, the suction unit main body 21 is formed integrally with the housing 11, and accordingly, the suction unit 2 can be integrally positioned to the housing 11, and the connection pipe assembly 3 for connecting the suction unit 2 and the ink cartridge 4 to be filled can also be provided at the same time, so that when the user uses the ink filling apparatus 100, the user only needs to put the ink cartridge 4 to be filled into the first cavity 11b, and the step of connecting the suction unit 2 with the housing 11 and the ink supply member 5 by the user is omitted, and therefore, the user can conveniently fill ink, which is beneficial to improving the use experience.

Claims (10)

1. An ink filling device for filling ink into an ink container to be filled, the ink filling device including a housing formed with a first chamber for accommodating the ink container to be filled and a second chamber for accommodating ink which can be filled into the ink container to be filled,

the ink filling device further comprises a liquid transferring needle communicated with the first cavity and the second cavity and a protection assembly at least surrounding the needle point of the liquid transferring needle.

2. The ink filling apparatus as claimed in claim 1, wherein the pipetting needle protrudes from a bottom surface of the first chamber, and the protective member surrounds the tip of the pipetting needle in a circumferential direction thereof.

3. The ink filling apparatus according to claim 1, wherein at least a portion of the guard member is movable between a guard position in which the tip of the pipetting needle is surrounded and a non-guard position in which the tip of the pipetting needle is not surrounded.

4. The ink filling device according to claim 3, wherein the protection member includes an elastic member and a second protection member abutting against each other, the second protection member is urged by the second elastic member to move to the protection position before the ink container to be filled is mounted to the first chamber, and the second protection member moves from the protection position to the non-protection position as the ink container to be filled is mounted to the first chamber.

5. The ink filling device according to claim 4, wherein the second protector is made of silicone rubber.

6. The ink filling apparatus as claimed in claim 5, wherein the elastic member and the second protective member are connected to each other.

7. An ink filling device according to any one of claims 1 to 6, wherein the protection member further comprises a needle cap detachably coupled to the pipetting needle.

8. The ink filling apparatus according to claim 7, wherein the needle cap is interference-fitted with the pipetting needle.

9. The ink filling apparatus according to claim 8, wherein at least a portion of the protective member for surrounding the needle tip is in a pressed state without surrounding the needle tip when the needle cap is mounted.

10. The ink filling device according to any one of claims 1 to 6, further comprising a lid member coupled to the housing, wherein the pipette needle is configured to be retractable in accordance with opening and closing of the lid member.

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