Cleaning liquid tank-mounted cleaning liquid injection device

Abstract

A cleaning liquid injection device according to the present invention comprises: a cleaning liquid container in which a cleaning liquid is stored; a cleaning liquid container holder into which the inlet side of the cleaning liquid container can be inserted in a snap-fit ​​manner; and a peristaltic pump unit having a mounting nozzle that delivers the cleaning liquid inside the cleaning liquid container inserted into the cleaning liquid container holder to a peristaltic pump. It further comprises a cleaning liquid injection lid having a stopper structure coupled to the inlet of the cleaning liquid container, wherein a through hole is formed in the center and a sealing membrane that seals the through hole, and the mounting nozzle comprises a seating portion on which the end of the cleaning liquid injection lid is seated, an insertion protrusion inserted into the through hole when the cleaning liquid injection lid is seated on the seating portion and whose end penetrates the sealing membrane, an air inlet portion and a cleaning liquid supply portion branching from the rear end of the insertion protrusion, an air passage penetrating the insertion protrusion and the air inlet portion, and a cleaning liquid passage penetrating the insertion protrusion and the cleaning liquid supply portion. By using the cleaning solution injection device according to the present invention, the cleaning solution in the cleaning solution container can be supplied to the peristaltic pump unit without a separate tube, thereby simplifying the installation and operation of parts for supplying the cleaning solution and significantly reducing the risk of cleaning solution contamination, which has the advantage of excellent usability.

Description

Technology Field

[0001] The present invention relates to a cleaning solution injection device for injecting a cleaning solution stored in a cleaning solution container using a peristaltic pump unit, and more specifically, to a cleaning solution injection device in which the inlet of the cleaning solution container is directly mounted in a structure that is inserted into the peristaltic pump unit, thereby enabling the cleaning solution inside the cleaning solution container to be supplied to the peristaltic pump unit without a separate tube. Background Technology

[0002] Generally, when attempting to wash tubular or sacral organs of various mammals, including humans, a washing solution is injected using a catheter. The washing solution used for such biological washing is typically stored and distributed in a separate washing solution container, and the washing solution within the container is injected using a separate peristaltic pump unit.

[0003] A conventional cleaning fluid injection device will be described in detail below with reference to the attached drawings.

[0004] FIG. 1 is a perspective view of a conventional cleaning fluid injection device.

[0005] As shown in FIG. 1, a conventional cleaning solution injection device has a peristaltic pump unit (3) that pumps the cleaning solution from the cleaning solution container (1) and a cleaning solution container holder (2) that holds the cleaning solution container (1) separated, and when the cleaning solution container (1) is mounted, the injection port faces upward, so a separate tube (4) is required when connecting to the peristaltic pump unit (3). In addition, in order to pump and supply the cleaning solution located at the bottom of the cleaning solution container, the tube (4) is generally inserted and fixed into the cleaning solution lid (5), and the end of the tube (4) has a structure that reaches the bottom of the cleaning solution.

[0006] When using such a conventional cleaning solution injection device, the user must hold the cleaning solution container lid (5) in place to prevent contamination, and at the same time fill the cleaning solution container (1) with cleaning solution, or install the cleaning solution container (1) filled with cleaning solution on the cleaning solution container holder (2) and carefully mount it so that the end of the tube (4) is accurately inserted into the cleaning solution container injection port.

[0007] The conventional method described above has the disadvantage that the cleaning liquid container holder (2) and the peristaltic pump unit (3) are separated, making transportation inconvenient, and that connecting the tube during use is difficult, and that a lot of care is required to prevent contamination of the tube. Prior art literature

[0008] (Patent Document 0001) KR 10-2009-0111334 A The problem to be solved

[0009] The present invention is proposed to solve the above-mentioned problems and aims to provide a cleaning fluid injection device in which the cleaning fluid container can be directly coupled to the peristaltic pump unit so that the cleaning fluid inside the cleaning fluid container can be supplied to the peristaltic pump unit without a separate tube. means of solving the problem

[0010] A cleaning liquid injection device according to the present invention for achieving the above-mentioned purpose comprises: a cleaning liquid container in which a cleaning liquid is stored; a cleaning liquid container holder into which the inlet side of the cleaning liquid container can be inserted in a snap-fit ​​manner; and a peristaltic pump unit having a mounting nozzle that transmits the cleaning liquid inside the cleaning liquid container inserted in the cleaning liquid container holder to a peristaltic pump.

[0011] The cleaning solution injection cap further comprises a stopper structure coupled to the inlet of the cleaning solution container, wherein a through hole is formed in the center and a sealing membrane is provided to seal the through hole, and the mounting nozzle comprises a seating portion on which the end of the cleaning solution injection cap is seated, an insertion protrusion inserted into the through hole when the cleaning solution injection cap is seated on the seating portion, the end of which penetrates the sealing membrane, an air inlet portion and a cleaning solution supply portion branching from the rear end of the insertion protrusion, an air passage penetrating the insertion protrusion and the air inlet portion, and a cleaning solution passage penetrating the insertion protrusion and the cleaning solution supply portion.

[0012] The above cleaning liquid container is inserted into the cleaning liquid container holder in a downwardly inclined direction, the air inlet extends in an upwardly inclined direction, and the cleaning liquid supply part extends in a downwardly inclined direction.

[0013] The air inlet and cleaning fluid supply sections extend in mutually opposite directions while forming a right angle with the insertion protrusion.

[0014] The above-mentioned mounting nozzle further includes an air check valve mounted in the air passage so that air flows only in the direction from the air inlet to the insertion protrusion, and a cleaning liquid check valve mounted in the cleaning liquid passage so that cleaning liquid flows only in the direction from the insertion protrusion to the cleaning liquid supply part.

[0015] When the cleaning liquid container is fully inserted into the cleaning liquid container holder, a concave portion is formed on the outer surface of the cleaning liquid container at a portion corresponding to the inner wall of the cleaning liquid container holder, and an elastic piece is provided on the inner wall of the cleaning liquid container holder, one side of which is bent toward the central axis of the cleaning liquid container holder, wherein the elastic piece has a convex portion that is inserted into the concave portion when the cleaning liquid container is fully inserted into the cleaning liquid container holder.

[0016] It further includes a first contact sensor that is pressurized by the cleaning solution container when the cleaning solution container is inserted into the cleaning solution container holder for a length greater than a preset length.

[0017] It further includes a second contact sensor that is pressed by the elastic piece when the convex portion contacts a point on the outer surface of the cleaning liquid container where the concave portion is not formed, and is not pressed by the elastic piece when the convex portion is inserted into the concave portion.

[0018] The above peristaltic pump is configured to operate only when the first contact sensor is pressurized and the second contact sensor is not pressurized.

[0019] The first contact sensor is mounted at a point closer to the mounting nozzle than the second contact sensor. Effects of the invention

[0020] By using the cleaning solution injection device according to the present invention, the cleaning solution in the cleaning solution container can be supplied to the peristaltic pump unit without a separate tube, thereby simplifying the installation and operation of parts for supplying the cleaning solution and significantly reducing the risk of cleaning solution contamination, which has the advantage of excellent usability. Brief explanation of the drawing

[0021] FIG. 1 is a perspective view of a conventional cleaning fluid injection device. FIG. 2 is a perspective view of a cleaning solution injection device according to the present invention. FIG. 3 is a cross-sectional view of a cleaning solution injection device according to the present invention. FIGS. 4 and FIGS. 5 are a perspective view and a cross-sectional view of a cleaning liquid container included in a cleaning liquid injection device according to the present invention. FIG. 6 is a cross-sectional view illustrating the shape of a cleaning liquid container included in a cleaning liquid injection device according to the present invention, mounted on a cleaning liquid container holder. FIG. 7 is a cross-sectional view of a mounting nozzle included in a cleaning liquid injection device according to the present invention. FIG. 8 is an exploded cross-sectional view of a cleaning liquid container and a cleaning liquid container holder included in a second embodiment of a cleaning liquid injection device according to the present invention. FIGS. 9 and FIGS. 10 are cross-sectional views illustrating the process of mounting a cleaning solution container included in a second embodiment of the cleaning solution injection device according to the present invention onto a cleaning solution container holder. Specific details for implementing the invention

[0022] An embodiment of the cleaning solution injection device according to the present invention will be described in detail below with reference to the attached drawings.

[0023] FIG. 2 is a perspective view of a cleaning solution injection device according to the present invention, and FIG. 3 is a cross-sectional view of a cleaning solution injection device according to the present invention.

[0024] The cleaning liquid injection device according to the present invention comprises a cleaning liquid container (300) in which a cleaning liquid is stored, and a peristaltic pump unit (100) that pumps and supplies the cleaning liquid stored in the cleaning liquid container (300). Inside the peristaltic pump unit (100), a peristaltic pump (not shown) for pumping the cleaning liquid and a cleaning liquid transfer path (not shown) for transferring the cleaning liquid supplied from the cleaning liquid container (300) to the peristaltic pump are provided. Since such a peristaltic pump and a cleaning liquid transfer path are substantially applied in the same way to conventional cleaning liquid injection devices, a detailed description thereof is omitted.

[0025] At this time, the cleaning liquid injection device according to the present invention is most characterized in that the cleaning liquid container (300) is configured to be mounted to the peristaltic pump unit (100) in an insertion manner so that the cleaning liquid inside the cleaning liquid container (300) can be transferred to the peristaltic pump without using a separate tube. That is, the peristaltic pump unit (100) is characterized in that it is equipped with a cleaning liquid container holder (200) into which the inlet side of the cleaning liquid container (300) can be inserted in a fitting manner, and a mounting nozzle (500) that transfers the cleaning liquid inside the cleaning liquid container (300) inserted into the cleaning liquid container holder (200) to the peristaltic pump.

[0026] The above-mentioned mounting nozzle (500) communicates with the inside of the cleaning liquid container (300) when the cleaning liquid container (300) is inserted into the cleaning liquid container holder (200), and the cleaning liquid inside the cleaning liquid container (300) flows directly into the mounting nozzle (500) and is then guided to the peristaltic pump.

[0027] That is, the cleaning solution injection device according to the present invention has the advantage that the mounting nozzle (500) installed inside the cleaning solution container (300) communicates directly with the inside of the cleaning solution container (300), so there is no need to install a separate tube to connect the cleaning solution container (300) and the mounting nozzle (500), making the installation of the cleaning solution container (300) very convenient and the replacement of the cleaning solution container (300) very convenient.

[0028] In addition, the cleaning solution injection device according to the present invention has the advantage of fundamentally preventing the risk of contamination that may occur as the cleaning solution passes through the tube, since a separate tube for connecting the cleaning solution container (300) and the mounting nozzle (500) is omitted.

[0030] FIGS. 4 and 5 are a perspective view and a cross-sectional view of a cleaning liquid container (300) included in a cleaning liquid injection device according to the present invention, FIG. 6 is a cross-sectional view showing the shape of the cleaning liquid container (300) included in the cleaning liquid injection device according to the present invention mounted on a cleaning liquid container holder (200), and FIG. 7 is a cross-sectional view of a mounting nozzle (500) included in the cleaning liquid injection device according to the present invention.

[0031] In order to insert the cleaning solution container (300) included in the present invention into the cleaning solution container holder (200), the cleaning solution container (300) must be turned upside down so that the opening of the cleaning solution container (300) faces downward. In order to prevent the cleaning solution inside the cleaning solution container (300) from leaking out when the cleaning solution container (300) is turned upside down in this manner, a cleaning solution injection cap (400) having a stopper structure that is coupled to the opening of the cleaning solution container (300) is provided.

[0032] At this time, the cleaning liquid container (300) is configured so that the cleaning liquid inside does not leak out until it is fully inserted into the cleaning liquid container holder (200), but when it is fully inserted into the cleaning liquid container holder (200), the cleaning liquid inside can flow into the mounting nozzle (500).

[0033] That is, the cleaning liquid injection cap (400) has a through hole (410) formed in the center and is equipped with a sealing membrane (420) that seals the through hole (410), and the mounting nozzle (500) can be configured so that when the cleaning liquid container (300) is fully inserted into the cleaning liquid container holder (200), the end facing the cleaning liquid container (300) penetrates the sealing membrane (420) and communicates with the inside of the cleaning liquid container (300).

[0034] That is, the cleaning liquid container holder (200) may include a seating portion (510) on which the end of a cleaning liquid injection lid (400) is seated, an insertion protrusion (520) that is inserted into the through hole (410) when the cleaning liquid injection lid (400) is seated on the seating portion (510) and whose end penetrates the sealing membrane (420), a cleaning liquid supply portion (540) branching from the rear end of the insertion protrusion (520), and a cleaning liquid passage (542) penetrating the insertion protrusion (520) and the cleaning liquid supply portion (540).

[0035] As mentioned above, when the mounting nozzle (500) and the cleaning liquid injection cap (400) are configured, the end of the insertion protrusion (520) does not penetrate the sealing membrane (420) until the cleaning liquid container (300) is completely inserted into the cleaning liquid container holder (200), so the cleaning liquid inside the cleaning liquid container (300) does not leak out to the outside. However, as shown in FIG. 6, when the cleaning liquid container (300) is completely inserted into the cleaning liquid container holder (200), the end of the insertion protrusion (520) penetrates the sealing membrane (420) and is drawn into the cleaning liquid container (300), so the cleaning liquid inside the cleaning liquid container (300) is transferred to the interlocking pump through the cleaning liquid passage (542) formed inside the insertion protrusion (520) and the cleaning liquid supply part (540). That is, the cleaning liquid container (300) included in the present invention has the advantage that the cleaning liquid inside is not leaked until it is fully inserted into the cleaning liquid container holder (200), but after it is fully inserted into the cleaning liquid container holder (200), the cleaning liquid inside is transferred to the peristaltic pump, thereby preventing the cleaning liquid inside the cleaning liquid container (300) from leaking out unnecessarily or being wasted.

[0037] Meanwhile, when the cleaning liquid inside the cleaning liquid container (300) is discharged to the outside through the mounting nozzle (500), negative pressure is generated inside the cleaning liquid container (300), so there may be cases where the cleaning liquid inside the cleaning liquid container (300) cannot be discharged smoothly.

[0038] The cleaning liquid injection device according to the present invention may additionally be provided with an air inlet section (530) branching from the rear end of the insertion protrusion (520) and an air passage (532) penetrating the insertion protrusion (520) and the air inlet section (530) so as to solve such problems, that is, to supply air into the cleaning liquid container (300) so that negative pressure is not generated inside the cleaning liquid container (300).

[0039] In this way, when the mounting nozzle (500) is provided with an air passage (532) that supplies external air into the cleaning liquid container (300), external air is supplied into the cleaning liquid container (300) in proportion to the amount of cleaning liquid flowing out from the cleaning liquid container (300), so that no negative pressure is generated in the cleaning liquid container (300), and accordingly, the cleaning liquid inside the cleaning liquid container (300) can flow out smoothly.

[0040] At this time, in order to prevent the cleaning liquid inside the cleaning liquid container (300) from being discharged through the air passage (532), it is preferable that the cleaning liquid container (300) be inserted into the cleaning liquid container holder (200) in a downwardly inclined direction, the air inlet (530) be extended in an upwardly inclined direction, and the cleaning liquid supply part (540) be extended in a downwardly inclined direction. When the air inlet (530) is extended upward and the cleaning liquid supply part (540) is extended downward in this manner, there is an advantage in that even if a small amount of cleaning liquid inside the cleaning liquid container (300) is introduced toward the air inlet (530), the introduced cleaning liquid can be prevented from passing through the air inlet (530) and being discharged to the outside.

[0041] Furthermore, in order to further enhance the effect of ensuring that the cleaning solution is discharged only to the cleaning solution supply section (540) and not to the air inlet section (530), it is preferable that the air inlet section (530) and the cleaning solution supply section (540) extend in mutually opposite directions while forming a right angle with the insertion protrusion (520). When the air inlet section (530) and the cleaning solution supply section (540) are extended in opposite directions in this manner, the direction of air inflow and the direction of cleaning solution outflow are secured as far apart as possible, which has the advantage of more effectively preventing the phenomenon of the cleaning solution being discharged to the air inlet section (530).

[0042] At this time, the length and extension direction of the air inlet section (530) and the cleaning fluid supply section (540) are not limited to the structure shown in this embodiment, and can be varied according to various conditions such as the type of cleaning fluid and the capacity of the peristaltic pump.

[0043] Meanwhile, to prevent the phenomenon of air supplied into the cleaning liquid container (300) through the air inlet (530) flowing back toward the air inlet (530) and the phenomenon of cleaning liquid flowing out toward the peristaltic pump flowing back toward the cleaning liquid container (300), the mounting nozzle (500) may be equipped with a check valve. For example, as shown in FIG. 7, the mounting nozzle (500) may additionally be equipped with an air check valve (534) mounted in the air passage (532) so that air flows only in the direction from the air inlet (530) toward the insertion protrusion (520), and a cleaning liquid check valve (544) mounted in the cleaning liquid passage (542) so that cleaning liquid flows only in the direction from the insertion protrusion (520) toward the cleaning liquid supply unit (540).

[0044] In this way, when an air check valve (534) and a cleaning liquid check valve (544) are provided in the air inlet section (530) and the cleaning liquid supply section (540), the air and cleaning liquid do not flow backward and flow only in one direction, so there is an advantage that the supply of cleaning liquid can be maintained consistently and smoothly. At this time, the air check valve (534) and the cleaning liquid check valve (544) can be any type of check valve as long as they can restrict the flow direction of the air and the flow direction of the cleaning liquid to one direction.

[0046] FIG. 8 is an exploded cross-sectional view of a cleaning liquid container (300) and a cleaning liquid container holder (200) included in a second embodiment of a cleaning liquid injection device according to the present invention, and FIG. 9 and FIG. 10 are cross-sectional views illustrating the process of mounting a cleaning liquid container (300) included in a second embodiment of a cleaning liquid injection device according to the present invention onto a cleaning liquid container holder (200).

[0047] The cleaning solution injection device according to the present invention may be configured so that a user can perceive by a click whether the cleaning solution container (300) has been fully inserted into the cleaning solution container holder (200).

[0048] For example, when the cleaning liquid container (300) is fully inserted into the cleaning liquid container holder (200), a concave portion (310) is formed on the outer surface of the cleaning liquid container (300) at a portion corresponding to the inner wall of the cleaning liquid container holder (200), and an elastic piece (210) may be provided on the inner wall of the cleaning liquid container holder (200), one side of which is bent toward the central axis of the cleaning liquid container holder (200). As shown in FIG. 8, the elastic piece (210) is provided with a convex portion (212) that is inserted into the concave portion (310) when the cleaning liquid container (300) is fully inserted into the cleaning liquid container holder (200). As shown in FIG. 9, the convex portion (212) of the elastic piece (210) is not inserted into the concave groove while the cleaning liquid container (300) is not fully inserted, but a click sensation is generated when the cleaning liquid container (300) is fully inserted into the cleaning liquid container holder (200), as shown in FIG. 10.

[0049] Therefore, the user can perceive the click sensation that occurs during the process of the convex portion (212) of the elastic piece (210) being inserted into the concave groove, and thus determine that the cleaning liquid container (300) has been inserted to the end of the cleaning liquid container holder (200). In this way, if the user can perceive whether the cleaning liquid container (300) has been inserted to the end of the cleaning liquid container holder (200) by the click sensation, various problems caused by the cleaning liquid container (300) not being inserted to the end can be prevented in advance, thus providing the advantage of making it very convenient to use.

[0050] In addition, the cleaning solution injection device according to the present invention may be equipped with a first contact sensor (220) for determining whether the cleaning solution container (300) is inserted into the cleaning solution container holder (200). Since the first contact sensor (220) is installed at a point where it is pressurized by the outer surface of the cleaning solution container (300) when the cleaning solution container (300) is inserted above a certain level, it is pressurized by the cleaning solution container (300) not only when the cleaning solution container (300) is completely inserted into the cleaning solution container holder (200) as shown in FIG. 10, but also before the cleaning solution container (300) is inserted into the cleaning solution container holder (200) as shown in FIG. 9, so the user can immediately recognize whether the cleaning solution container (300) is present in the cleaning solution container holder (200).

[0051] Additionally, the cleaning solution injection device according to the present invention may be configured to detect, through a sensor signal, whether the cleaning solution container (300) has been fully inserted into the cleaning solution container holder (200). For example, the cleaning solution injection device according to the present invention may additionally be provided with a second contact sensor (230) which is pressed by the elastic piece (210) when the convex portion (212) contacts a point on the outer surface of the cleaning solution container (300) where the concave portion (310) is not formed, as shown in FIG. 9, and is not pressed by the elastic piece (210) when the convex portion (212) is inserted into the concave portion (310), as shown in FIG. 10.

[0052] That is, the second contact sensor (230) is configured such that it is not pressurized while the cleaning solution container (300) is not entering the cleaning solution container holder (200), is pressurized at the beginning when the cleaning solution container (300) enters the cleaning solution container holder (200), and is not pressurized again when the cleaning solution has completely entered the cleaning solution container holder (200).

[0053] Accordingly, the user perceives that the cleaning solution container (300) has not yet entered the cleaning solution container holder (200) as shown in FIG. 8 while both the first contact sensor (220) and the second contact sensor (230) are not pressurized, and perceives that the cleaning solution container (300) is entering the cleaning solution container holder (200) as shown in FIG. 9 while the first contact sensor (220) is not pressurized and only the second contact sensor (230) is pressurized, and while both the first contact sensor (220) and the second contact sensor (230) are pressurized, and perceives that the cleaning solution container (300) has entered the cleaning solution container holder (200) to the end as shown in FIG. 10 when the first contact sensor (220) is pressurized but the second contact sensor (230) is not pressurized.

[0054] In this manner, when the first contact sensor (220) and the second contact sensor (230) are provided, the peristaltic pump is set to operate only when the first contact sensor (220) is pressurized and the second contact sensor (230) is not pressurized, and in other cases, the peristaltic pump is not operated. This has the advantage of preventing various problems that may occur when the peristaltic pump operates while the cleaning liquid container (300) is not fully inserted.

[0055] At this time, if the second contact sensor (230) is positioned further inside than the first contact sensor (220) (more specifically, closer to the mounting nozzle (500)), there may be a case where only the first contact sensor (220) is pressurized and the second contact sensor (230) is not pressurized during the initial stage of inserting the cleaning liquid container (300) into the cleaning liquid container holder (200), and thus the peristaltic pump may operate even though the cleaning liquid container (300) has not been fully inserted. Therefore, it is preferable that the first contact sensor (220) be mounted at a point closer to the mounting nozzle (500) than the second contact sensor (230), as shown in this embodiment.

[0056] Although the present invention has been described in detail using preferred embodiments, the scope of the invention is not limited to specific embodiments and should be interpreted by the appended claims. Furthermore, those skilled in the art will understand that many modifications and variations are possible without departing from the scope of the invention. Explanation of the symbols

[0057] 100: Peristaltic pump unit 200: Cleaning fluid container holder 210: Elastic piece 212: Convex part 220: 1st contact sensor 230: 2nd contact sensor 300 : Cleaning solution container 310 : Recess 400: Cleaning solution injection cap 410: Through hole 420 : Sealing membrane 500 : Mounting nozzle 510: Seating part 520: Insertion protrusion 530 : Air inlet 532 : Air passage 534 : Air check valve 540 : Cleaning fluid supply unit 542 : Cleaning fluid passage 544 : Cleaning fluid check valve

Claims

Claim 1 A cleaning solution injection device comprising: a cleaning solution container in which a cleaning solution is stored; a cleaning solution container holder into which the inlet side of the cleaning solution container can be inserted in a fitting manner, and a peristaltic pump unit having a mounting nozzle that delivers the cleaning solution inside the cleaning solution container inserted into the cleaning solution container holder to a peristaltic pump; and a cleaning solution injection cap having a stopper structure coupled to the inlet of the cleaning solution container, wherein the stopper has a through hole formed in the center and a sealing membrane that seals the through hole, wherein the mounting nozzle comprises a seating portion on which the end of the cleaning solution injection cap is seated, an insertion protrusion that is inserted into the through hole when the cleaning solution injection cap is seated on the seating portion and whose end penetrates the sealing membrane, an air inlet portion and a cleaning solution supply portion branching from the rear end of the insertion protrusion, an air passage penetrating the insertion protrusion and the air inlet portion, and a cleaning solution passage penetrating the insertion protrusion and the cleaning solution supply portion. Claim 2 delete Claim 3 A cleaning liquid injection device according to claim 1, wherein the cleaning liquid container is inserted into the cleaning liquid container holder in a downwardly inclined direction, the air inlet extends in an upwardly inclined direction, and the cleaning liquid supply part extends in a downwardly inclined direction. Claim 4 A cleaning liquid injection device according to claim 3, wherein the air inlet and the cleaning liquid supply are extended in mutually opposite directions while forming a right angle with the insertion protrusion. Claim 5 A cleaning liquid injection device according to claim 1, wherein the mounting nozzle further comprises an air check valve mounted in the air passage so that air flows only in the direction from the air inlet to the insertion protrusion, and a cleaning liquid check valve mounted in the cleaning liquid passage so that cleaning liquid flows only in the direction from the insertion protrusion to the cleaning liquid supply part. Claim 6 A cleaning liquid injection device according to claim 1, wherein a concave portion is formed on the outer surface of the cleaning liquid container at a portion corresponding to the inner wall of the cleaning liquid container holder when the cleaning liquid container is fully inserted into the cleaning liquid container holder, and an elastic piece is provided on the inner wall of the cleaning liquid container holder, one side of which is bent toward the central axis of the cleaning liquid container holder, wherein the elastic piece has a convex portion that is inserted into the concave portion when the cleaning liquid container is fully inserted into the cleaning liquid container holder. Claim 7 A cleaning liquid injection device according to claim 6, further comprising a first contact sensor that is pressurized by the cleaning liquid container when the cleaning liquid container is inserted into the cleaning liquid container holder for a length greater than or equal to a preset length. Claim 8 A cleaning liquid injection device according to claim 7, further comprising a second contact sensor which is pressed by the elastic piece when the convex portion contacts a point on the outer surface of the cleaning liquid container where the concave portion is not formed, and is not pressed by the elastic piece when the convex portion is inserted into the concave portion. Claim 9 A cleaning fluid injection device according to claim 8, wherein the peristaltic pump is operable only when the first contact sensor is pressurized and the second contact sensor is not pressurized. Claim 10 A cleaning fluid injection device according to claim 9, characterized in that the first contact sensor is mounted at a point closer to the mounting nozzle than the second contact sensor.

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