JP2015217318A - Foreign matter removal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability of removing the filter cartridge from a foreign matter removal device having a mechanism of fixing a filter cartridge.SOLUTION: In removal of a cartridge for water, a cartridge for water is pulled by an operator, and the operation cases a metallic ball 73 to move in the right direction in Figure 6, which causes an inner cylindrical member 71 to move in the right direction. When the inner cylindrical member 71 and the metallic ball 73 move to pre-set positions, the metallic ball 73 enters an annular concave part 72E formed in an outer cylindrical member 72, leading to a reduction of the exposure amount (protrusion amount) of the metallic ball 73 from the inner peripheral surface of the inner cylindrical member 71, and the cartridge for water is thereby removed.

Description

  The present invention relates to a foreign matter removing apparatus.

  Patent Document 1 discloses a configuration in which a water purifier in which a hollow membrane is accommodated is installed in a storage provided on a sink in a kitchen unit.

Japanese Patent Laid-Open No. 10-165943

Here, in the foreign matter removing device that removes foreign matter contained in the fluid, for example, a filter cartridge that removes foreign matter, a connector that connects the main body side of the foreign matter removing device to the filter cartridge, and a fixing mechanism that fixes the filter cartridge Is provided.
Here, when a fixing mechanism for fixing the filter cartridge is provided, when removing the filter cartridge from the connector, an operation for the fixing mechanism is required in addition to the operation for removing the filter cartridge.
An object of the present invention is to improve the workability when removing a filter cartridge from a foreign matter removing apparatus having a mechanism for fixing the filter cartridge.

For this purpose, a foreign matter removing device to which the present invention is applied is a foreign matter removing device to which a filter cartridge for removing foreign matter contained in a fluid is mounted, the device main body and an insertion portion of the filter cartridge. A connector that is inserted and fixed, and the connector enters a recess formed in an outer peripheral surface of the inserted portion to be inserted, and a movement restricting member that restricts movement of the inserted portion, and A movement preventing member that prevents the movement restricting member that has entered the recessed part from coming off from the recessed part, and the movement restricting member is moved from the recessed part by relative movement of the movement preventing member with respect to the movement restricting member. The foreign object is configured such that the relative movement is performed by the inserted portion when the inserted portion is pulled out from the connector. It is removed by the device.
Here, when the inserted portion pulled out from the connector is inserted into the connector, the inserted portion moves along a predetermined movement path, and the movement moves on the movement path. A regulating member is located, and further, the detachment preventing member is located beside the movement path, and the movement of the movement regulating member in the direction of retreating from the movement path is regulated by the detachment preventing member, and the inserted When the portion is inserted into the connector, the movement restriction member can be retracted from the movement path by performing a relative movement during insertion, which is a relative movement of the detachment prevention member with respect to the movement restriction member. Thus, when the inserted portion is inserted into the connector, the relative movement during insertion may be performed by the inserted portion. In this case, it is possible to improve the workability when the filter cartridge is attached to the foreign matter removing apparatus.
The detachment preventing member is fixed to the apparatus main body, and when the inserted portion is pulled out from the connector, the movement restricting member is pressed by the inserted portion to move, and the movement restricting member moves. Thus, the relative movement can be performed. In this case, the relative movement can be easily performed as compared with the case where the detachment preventing member is moved and the detachment preventing member is moved relative to the movement restricting member.
The detachment preventing member is fixed to the apparatus main body, and when the inserted portion is inserted into the connector, the movement restricting member is pressed by the inserted portion to move, and the movement restricting member is moved. As a result of movement, relative movement at the time of insertion is performed. In this case, the relative movement at the time of insertion can be easily performed as compared with the case where the relative movement at the time of insertion is performed by moving the detachment preventing member.
In addition, a groove is formed on the outer surface of the detachment prevention member, and the installation member installed on the apparatus main body side enters the groove to fix the detachment prevention member to the apparatus main body. It can be characterized. In this case, the disengagement preventing member can be fixed to the apparatus main body side by inserting an installation member disposed on the apparatus main body side into the groove formed in the disengagement preventing member.
The detachment preventing member is formed in a cylindrical shape, and the detachment preventing member is disposed so that an axial direction of the detachment preventing member is along a pulling direction of the inserted portion, and the groove is configured to prevent the detachment. Formed on the outer peripheral surface of the member, formed along the circumferential direction of the detachment preventing member and formed in an annular shape, one side of the detachment preventing member, and the other opposite to the one side From the side, the installation member is inserted into the groove, and the disengagement prevention member is fixed to the apparatus main body. In this case, the detachment preventing member can be fixed from both sides of the detachment preventing member.
The detachment preventing member is formed in a cylindrical shape, and the detachment preventing member is disposed so that an axial direction of the detachment preventing member is along a pulling direction of the inserted portion, and the groove is configured to prevent the detachment. Formed on the outer peripheral surface of the member, formed along the circumferential direction of the detachment prevention member and formed over the entire circumference of the detachment prevention member, and within the groove and over the entire circumference of the groove. The installation member is inserted. In this case, the detachment preventing member can be fixed over the entire circumference of the detachment preventing member.
In addition, the connector is accommodated in the interior, and has a through hole through which a part of the connector is passed, and the portion located around the through hole is used to move the connector in the radial direction of the through hole. A connector movement restriction member for restricting the movement of the apparatus, and the installation member installed on the apparatus main body side is housed inside the connector movement restriction member. In this case, the appearance of the portion where the connector is provided can be improved as compared with the case where the installation member is provided outside the connector movement restricting member.

  ADVANTAGE OF THE INVENTION According to this invention, workability | operativity at the time of removing a filter cartridge from the foreign material removal apparatus which has the mechanism for fixing a filter cartridge can be made more favorable.

It is the figure which showed the whole structure of the dental medical device concerning this embodiment. It is the figure which showed the state which removed the side wall of the base unit. It is the figure which expanded and showed the attachment part for water. It is a figure for demonstrating the cartridge for water. It is a figure for demonstrating the connector for supply shown in FIG. It is sectional drawing in the VI-VI line in FIG. It is a figure for demonstrating the cylindrical member connected to the connector for supply. It is a perspective view of the cartridge for water in the state where the filter accommodating member was removed. It is a perspective view of a blocking member. (A), (B), (C) is a figure for demonstrating a cover member. (A), (B) is a figure for demonstrating a filter accommodating member. It is the figure which showed the other structural example of the attachment part for water. It is the figure which showed the other structural example of the positioning member. It is the figure which showed the other structural example of the positioning member. It is the figure which showed the other structural example of the attachment part for water and the attachment part for air. It is an enlarged view of the attachment part for water. It is a figure explaining the structure of an attachment / detachment part.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram showing an overall configuration of a dental medical device according to the present embodiment.
As shown in the figure, in the dental medical device 1 of this embodiment, a medical table 2 is provided on the floor surface. Here, the medical table 2 is provided with a base 2a, a seat plate 2b supported by the base 2a so as to be movable up and down, and one end attached to the seat plate 2b so as to be rotatable around the one end. And a back plate 2c. In addition, in FIG. 1, the state which the backplate 2c fell is shown.

  A doctor's tray table 3 and a doctor's instrument holder 10 are provided on the side of the medical table 2. The instrument holder 10 is attached to the tray table 3. Further, an instrument holder for assistant (not shown) is installed on the opposite side of the tray table 3 with the medical table 2 interposed therebetween. Further, a dental light 6a provided with a light source, an arm 6b that supports the dental light 6a, and a column 6c that supports the arm 6b are installed.

  In addition, a dental instrument (instrument) (not shown) is detachably held in the doctor instrument holder 10 and the assistant instrument holder (not shown). Here, examples of the medical instrument for the doctor include an air turbine handpiece, a micromotor handpiece, a scaler, a three-way syringe, a root canal length measuring device, a root canal dilator, and an intraoral camera. Moreover, as a medical instrument for assistants, for example, a suction instrument that sucks saliva, blood, cutting waste, etc. in the oral cavity of a patient can be cited.

  Moreover, in this embodiment, the supply apparatus (spitton apparatus) 5 which supplies water with respect to the cup used when a patient gargles is provided by the side of the treatment table 2. FIG. The supply device 5 is provided with a base unit 51. Here, a detachable side wall 51 </ b> A is provided on a side surface of the base unit 51. In the present embodiment, the inside of the base unit 51 can be accessed by removing the side wall 51A.

  Further, as shown in FIG. 1, the supply device 5 includes a waste liquid receiving part (basin) 52 that is installed on the base unit 51 and receives saliva discharged from the oral cavity of the patient, and beside the waste liquid receiving part 52. A cup water supply unit (not shown) that supplies water to a not-shown cup and a cleaning water supply unit 54 that supplies cleaning water to the waste liquid receiving unit 52 are provided.

FIG. 2 is a view showing a state in which the side wall 51A of the base unit 51 is removed.
Although not shown in FIG. 2, the base unit 51 includes a water cartridge for removing impurities (foreign matter) contained in water (an example of fluid) and air (an example of fluid). Two cartridges for air that remove impurities (foreign matter) are installed. In the present embodiment, the water cartridge and the air cartridge are configured in the same manner except for the indications in the filter (described later) and the label (described later) accommodated therein.

In the dental medical device 1 of the present embodiment, the water supplied by the water pipe is used as medical water after passing through the water cartridge. In the present embodiment, air sent by a compressor (not shown) is passed through an air cartridge, and the air that has passed through the air cartridge is used as medical air.
Here, the part of the supply device 5 in the dental medical device 1 has a function of removing foreign matters (impurities) contained in water or air, and this supply device 5 is regarded as a foreign matter removing device. be able to. Furthermore, the base unit 51 can be regarded as an apparatus main body among the functional units included in the supply apparatus 5.

  As shown in FIG. 2, the base unit 51 is provided with a water attachment portion 61 to which a water cartridge is attached and an air attachment portion 62 to which an air cartridge is attached. Here, each of the water mounting portion 61 and the air mounting portion 62 can be regarded as a mounted portion to which a cartridge such as a water cartridge or an air cartridge is mounted.

  Here, in this embodiment, the water mounting portion 61 is positioned below the air mounting portion 62, and when the cartridge mounting is completed, the water cartridge is positioned below the air cartridge. To position. In addition, in the present embodiment, the water mounting portion 61 and the air mounting portion 62 are provided with their installation positions shifted so that the positions in the vertical direction are different from each other. The part 61 is installed below the air attachment part 62.

Here, when the water cartridge is attached or detached, water attached to the water cartridge may scatter around, but as in the present embodiment, when the water cartridge is positioned below, Compared with the case where the water cartridge is positioned above, the scattering of water to the surroundings can be suppressed.
To explain further, in the present embodiment, the water mounting portion 61 is positioned below the base unit 51 (near the bottom of the base unit 51). In this case, as compared with the case where the water mounting portion 61 is positioned at the upper part of the base unit 51, the scattering of water to the surroundings can be suppressed.

FIG. 3 is an enlarged view of the water attachment portion 61. The air mounting portion 62 is configured in the same manner as the water mounting portion 61.
The water mounting portion 61 includes a support plate 61A that supports the water cartridge from below, and a regulating member 61B that is formed in a C shape when viewed from above and restricts the lateral movement of the water cartridge. Is provided. In addition, an attachment / detachment portion 61 </ b> C for attaching / detaching a supply pipe (described later) and a discharge pipe (described later) provided in the water cartridge is provided. The restricting member 61B is not limited to the C shape, and may be formed in a U shape as shown in FIG. 12 (a diagram illustrating another configuration example of the water attachment portion 61). Further, the regulating member 61B is not essential and may be omitted.

  The attachment / detachment portion 61C is provided with a supply connector 70 for inserting and fixing a supply pipe to supply water to the supply pipe. Further, the detachable portion 61C is provided with a discharge connector 80 through which water discharged from the discharge pipe is inserted and fixed. Further, in the drawing, two tubes (not shown) are provided behind the supply connector 70 and the discharge connector 80, and one tube is used, and water from the water pipe is supplied to the supply connector 70. The other tube is used, and the water from the discharge connector 80 is supplied to the medical instrument and the supply device 5 described above.

Further, the attaching / detaching portion 61C is provided with a positioning member 81 for positioning the supply connector 70 and the discharge connector 80. The positioning member 81 is provided with a plate-like member 82 extending along a direction orthogonal to the attaching / detaching direction of the water cartridge.
Further, the plate-like member 82 is formed with a groove 83 (hereinafter referred to as “sheet metal groove 83”) that extends from the side located on the right side in the figure toward the inside of the plate-like member 82. In the member 82, a first side edge 85 and a second side edge 86 that extend along the left-right direction in the drawing are provided at locations facing the sheet metal groove 83.

  On the other hand, in each of the supply connector 70 and the discharge connector 80, a groove along the circumferential direction (hereinafter referred to as “circumferential groove”) is formed on the outer peripheral surface. And in this embodiment, the 1st side edge 85 and the 2nd side edge 86 have entered with respect to this circumferential groove, and, thereby, the attachment / detachment direction (direction orthogonal to the direction where the plate-shaped member 82 is extended) of the water cartridge ) Is restricted from moving to the connector 70 for supply and the connector 80 for discharge.

FIG. 4 is a view for explaining the water cartridge.
As shown in the figure, a water cartridge 100 as an example of a filter cartridge is formed in a cup shape, and includes therein a filter housing member 110 that houses a filter such as a hollow fiber filter, and an upper portion of the filter housing member 110. And a lid member 120 that closes the opening formed in the cover.

  The lid member 120 includes a lid body (base body) 123 formed in a cylindrical shape and having an outer peripheral surface 121 and an upper surface 122, a supply pipe 124 through which water supplied to the water cartridge 100 passes, and from the water cartridge 100. A discharge pipe 125 through which the discharged water passes is provided. Here, each of the supply pipe 124 and the discharge pipe 125 includes a pipe main body 126 formed integrally with the lid main body 123, and a cylindrical member 127 inserted and fixed at the tip of the pipe main body 126. ing.

  Here, the tube body 126 is formed in an L shape, and is provided with a first portion 126A extending along the vertical direction in the drawing and a second portion 126B extending along the horizontal direction. Thus, when the tube main body 126 is formed in an L shape, the height of the water cartridge 100 can be reduced as compared with the case where the tube main body 126 is formed in a straight line along the vertical direction. It becomes like this. In addition, in the present embodiment, the opening 128 present at the tips of the supply pipe 124 and the discharge pipe 125 faces sideways, and the height of the water cartridge 100 is higher than when the opening 128 faces upward. Can be reduced.

  Further, in the present embodiment, a label 111 used for identifying whether the cartridge is the water cartridge 100 or the air cartridge is attached to the outer peripheral surface of the filter housing member 110. In FIG. 4, since the water cartridge 100 is shown, “for water” is displayed, but when it is an air cartridge, “for air” is displayed. In the present embodiment, the water cartridge 100 and the air cartridge are formed to have the same outer shape, making it difficult to distinguish the two. For this reason, a label “for water” or “for air” is displayed on the label 111 to make it easy to distinguish between the two.

  Further, in the present embodiment, the letters “IN” indicating that water flows in and an arrow are displayed on the outer surface of the supply pipe 124, and “OUT” indicating that water is discharged on the outer surface of the discharge pipe 125. "And an arrow are displayed. In addition, each of the supply pipe 124 and the discharge pipe 125 is displayed with a display indicating the function of each of the pipes (hereinafter referred to as “function display”).

  Furthermore, in this embodiment, each of the water cartridge 100 and the air cartridge is provided with two cylindrical members 127, and in this embodiment, a total of four cylindrical members 127 are provided on the cartridge side. It becomes the composition. A total of four connectors (two supply connectors 70 and two discharge connectors 80) are provided so as to correspond to the four cylindrical members 127. Further, although not described above, the four cylindrical members 127 have different colors, and the four connectors also have different colors.

  Further, of the two cylindrical members 127 provided in the water cartridge 100, the color of the one cylindrical member 127 provided on the supply pipe 124 side and the water attachment portion 61 (see FIG. 2) are provided. The color of the connector 70 for supply which is one of the two connectors is the same. Further, although not shown, the supply connector 70 is also displayed with the letters “IN” and arrows shown in FIG.

  Of the two cylindrical members 127 provided in the water cartridge 100, the color of the other cylindrical member 127 provided on the discharge pipe 125 side and the water attachment portion 61 (see FIG. 2) are provided. The color of the discharge connector 80, which is the other of the two connectors, is the same. Further, although not shown, the discharge connector 80 is also displayed with the characters “OUT” and arrows shown in FIG.

  Similarly, of the two cylindrical members 127 provided in the air cartridge, the color of one cylindrical member 127 provided on the supply pipe 124 side and provided in the air attachment portion 62 (see FIG. 2). The color of the connector 70 for supply which is one of the two connectors is the same. Further, although not shown, the supply connector 70 is also displayed with the letters “IN” and arrows shown in FIG.

  Of the two cylindrical members 127 provided in the air cartridge, the color of the other cylindrical member 127 provided on the discharge pipe 125 side and the air attaching portion 62 (see FIG. 2) are provided. The color of the discharge connector 80, which is the other of the two connectors, is the same. Further, although not shown, the discharge connector 80 is also displayed with the characters “OUT” and arrows shown in FIG.

Thus, in this embodiment, the color of each of the four cylindrical members 127 is different, the color of each of the four connectors is different, and the connector and the cylindrical member 127 that are connected to each other. Are the same color. Further, not only on the cartridge side but also on the connector side, the characters “IN” and “OUT” and arrows are displayed.
In such a case, it is possible to more effectively prevent the water cartridge 100 and the air cartridge from being erroneously attached or the supply side and the discharge side from being erroneously attached.

  Further, in the present embodiment, the supply pipe 124 and the discharge pipe 125 are formed so as to extend in the same direction (in the drawing, the back side and the left direction (obliquely left back direction) in the drawing). An opening 128 formed at the tip of each tube 125 is oriented in the same direction. Thereby, in this embodiment, it becomes possible to mount the water cartridge 100 simply by pushing the water cartridge 100 into the attaching / detaching portion 61C shown in FIG.

  In addition, in the present embodiment, the water cartridge 100 can be mounted simply by pushing the water cartridge 100 in one direction. Here, when the supply pipe 124 and the discharge pipe 125 extend in different directions, and the opening 128 formed at the tip of each of the supply pipe 124 and the discharge pipe 125 faces a different direction, the pushing in the one direction is performed. The operation when the water cartridge 100 is mounted becomes complicated.

  Furthermore, in the present embodiment, as described above, the two cartridges, the water cartridge 100 and the air cartridge, are provided. In the present embodiment, the mounting positions of the two cartridges are integrated into one place. . Specifically, two attachment portions (water attachment portion 61, air attachment portion) are provided in one recess portion (inside the recess portion located on the back side of the side wall 51A) that appears by removing one side wall 51A (see FIG. 1). Portion 62) (see FIG. 2) is installed, and the mounting portion is gathered in the recess. As a result, the user can more easily attach and detach the two cartridges.

  Furthermore, in this embodiment, the attachment / detachment direction when attaching / detaching the two cartridges of the water cartridge 100 and the air cartridge is aligned. In other words, in this embodiment, since the two attachment portions (water attachment portion 61 and air attachment portion 62) face the same direction, the water cartridge 100 and the air cartridge are inserted in the same direction. Thus, the water cartridge 100 and the air cartridge can be mounted.

  In the present embodiment, the water cartridge 100 and the air cartridge can be removed by pulling the water cartridge 100 and the air cartridge in the same direction. In this case, the user can more easily remove the two cartridges than when the removal directions of the two cartridges, the water cartridge 100 and the air cartridge, are different from each other.

  Furthermore, in the present embodiment, the opening 128 formed in the supply pipe 124 and the discharge pipe 125 and the label 111 have a predetermined fixed positional relationship. As shown in FIG. The label 111 is arranged in a state shifted by 180 ° in the circumferential direction of the water cartridge 100. More specifically, when the water cartridge 100 is mounted, the opening 128 faces the downstream side in the mounting direction of the water cartridge 100, and the label 111 faces the direction opposite to the mounting direction (upstream side in the mounting direction).

  As a result, in this embodiment, when the operator mounts the water cartridge 100, the label 111 faces the operator, and the operator can more easily understand the type of cartridge that he / she is mounting. Become. Further, after the mounting of the water cartridge 100 is completed, when the label 111 faces the outside of the dental medical device 1 and the side wall 51A (see FIG. 1) is removed, it is determined which cartridge is mounted. It will be immediately identifiable.

  Similarly, in this embodiment, the opening 128 formed in the supply pipe 124 and the discharge pipe 125 and the function display (display of “IN”, “OUT”, arrows, etc.) have a predetermined positional relationship. It is arranged. Specifically, similarly to the above, the opening 128 and the function display are arranged in a state shifted by 180 ° in the circumferential direction of the water cartridge 100.

  Also in this case, as described above, when the operator mounts the water cartridge 100, the function display faces the operator, and the operator can easily grasp the function (role) of each pipe. In this case, errors in pipe connection and the like are reduced. Furthermore, after the mounting of the water cartridge 100 is completed, when the function display faces the outside of the dental medical device 1 and the side wall 51A (see FIG. 1) is removed, the function (role) of each tube is immediately displayed. Can be confirmed.

  In the present embodiment, the case where the opening 128 and the label 111 are shifted by 180 ° in the circumferential direction of the water cartridge 100 and the opening 128 and the function display are shifted by 180 ° has been described as an example. There may also be aspects other than 180 °, such as 90 °. For example, when the supply connector 70 and the discharge connector 80 are provided on the left side wall 65 side shown in FIG. 3, the function display and the label 111 face the operator side by shifting by 90 ° as described above. .

The water cartridge 100 will be further described with reference to FIG. 4. The water cartridge 100 of the present embodiment can be self-supported even when it is removed from the water mounting portion 61, and the water cartridge 100 is self-supporting. Then, the opening 128 is configured to be positioned at the top of the water cartridge 100. This makes it difficult for the water inside the water cartridge 100 to leak out.

  Furthermore, in this embodiment, when the water cartridge 100 is self-supporting, the supply pipe 124 and the discharge pipe 125 are arranged to extend along the horizontal direction. In this embodiment, the supply pipe 124 and the discharge pipe extending in the horizontal direction are arranged. An opening 128 is formed at the tip of 125. As a result, the opening 128 does not face downward but faces in the lateral direction (the side of the water cartridge 100), and it is difficult for water to droop from the opening 128.

  FIG. 5 is a view for explaining the supply connector 70 shown in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a view for explaining the cylindrical member 127 (see FIG. 4) connected to the supply connector 70. The supply connector 70 and the discharge connector 80 are configured in the same manner. Here, the supply connector 70 will be described.

  As shown in FIG. 5, the supply connector 70 is provided with an inner cylindrical member 71. The inner cylindrical member 71 has a plurality of through holes 71A. Here, four through holes 71 </ b> A are arranged, and each through hole 71 </ b> A is arranged every 90 ° in the circumferential direction of the inner cylindrical member 71.

  An outer cylindrical member 72 as an example of a detachment preventing member is installed outside the inner cylindrical member 71. The outer cylindrical member 72 is formed in a cylindrical shape, and is arranged so that the axial direction of the outer cylindrical member 72 is along the attaching / detaching direction of the water cartridge 100 (the direction indicated by reference numeral 6A in FIG. 6). ing. Further, the supply connector 70 of the present embodiment is provided with a metal spherical member 73 (hereinafter referred to as “metal sphere 73”), as shown in FIG.

  Four metal balls 73 as an example of the movement restricting member are provided so as to correspond to the four through holes 71A arranged. Each of the metal balls 73 is accommodated in the through hole 71 </ b> A, and a part thereof protrudes from the inner peripheral surface of the inner cylindrical member 71. Here, the diameter of the through hole 71A is narrowed on the inner peripheral surface side of the inner cylindrical member 71. Accordingly, in this embodiment, the metal inward from the inner peripheral surface of the inner cylindrical member 71 is provided. The movement of the sphere 73 is restricted, and the metal sphere 73 is prevented from dropping inward from the inner peripheral surface.

Further, although not shown in FIG. 5, an annular protrusion formed along the circumferential direction of the outer cylindrical member 72 is formed on the inner peripheral surface of the outer cylindrical member 72. In this embodiment, When the annular protrusion pushes the metal sphere 73, a part of the metal sphere 73 protrudes from the inner peripheral surface of the inner cylindrical member 71.
Further, in the present embodiment, the outer cylindrical member 72 can move in the axial direction of the outer cylindrical member 72, and when the outer cylindrical member 72 moves in the axial direction, the outer cylindrical member 72 moves outward with respect to the metal ball 73. The cylindrical member 72 is relatively moved, and the annular protrusion is located at a location different from the position where the metal ball 73 is opposed. In this case, the movement range of the metal sphere 73 is expanded, and the metal sphere 73 can move toward the outer side in the radial direction of the inner cylindrical member 71.

With reference to FIG. 6, the structure of the connector 70 for supply is further demonstrated.
As described above, and as shown in FIG. 6, the supply connector 70 is provided with the inner cylindrical member 71, and the outer cylindrical member 71 is disposed outside the inner cylindrical member 71. 72 is provided. Further, a metal ball 73 is accommodated in the through hole 71 </ b> A formed in the inner cylindrical member 71.

Here, as described above, the annular protrusion 72A is formed on the inner peripheral surface of the outer cylindrical member 72, and in this embodiment, the metal ball 73 is pressed by the annular protrusion 72A.
In addition, a circumferential groove 72B into which the first side edge 85 (see FIG. 3) and the second side edge 86 enter is formed on the outer peripheral surface of the outer cylindrical member 72. In addition, the outer circumferential surface of the outer cylindrical member 72 is provided with a circumferential groove 72 </ b> B formed in an annular shape along the circumferential direction of the outer cylindrical member 72 and over the entire circumference of the outer cylindrical member 72.

Here, the circumferential groove 72 </ b> B is formed so as to extend in a direction orthogonal (intersect) to the attachment / detachment direction (direction parallel to) of the water cartridge 100. Furthermore, in the present embodiment, a positioning member 81 (see also FIG. 3) as an example of an installation member installed on the base unit 51 (see FIG. 2) side enters the circumferential groove 72B. The connector 70 is fixed to the base unit 51 side. In other words, as described above, the supply connector 70 is fixed to the base unit 51 side by the first side edge 85 and the second side edge 86 of the plate-like member 82 entering the circumferential groove 72B.
Furthermore, an annular recess 72 </ b> E that is a recess formed along the circumferential direction of the outer cylindrical member 72 is formed on the inner peripheral surface of the outer cylindrical member 72 and the opening edge portion of the outer cylindrical member 72. ing.

  In addition, although description was abbreviate | omitted above, 71 A of through-holes are formed in the ellipse shape. In other words, the through hole 71 </ b> A is formed so as to extend along the axial direction of the inner cylindrical member 71. More specifically, the through hole 71 </ b> A is arranged so that the long axis is along the axial direction of the inner cylindrical member 71.

  In the present embodiment, an advancing / retreating member 75 is provided between the inner cylindrical member 71 and the outer cylindrical member 72 so as to advance / retreat along the axial direction of the supply connector 70. The advance / retreat member 75 is formed in a cylindrical shape, and an outer protrusion 75A that protrudes from the outer peripheral surface of the advance / retreat member 75 and is formed in an annular shape is provided at the left end of the advance / retreat member 75 in the drawing. Further, an inner protrusion 75B that protrudes from the inner peripheral surface of the advance / retreat member 75 and is formed in an annular shape is provided at the right end of the advance / retreat member 75 in the drawing.

  On the inner protrusion 75B, a slope 75C is formed at a location in contact with the metal sphere 73 that descends toward the left in the figure. The inclined surface 75C is also formed in an annular shape along the circumferential direction of the inner cylindrical member 71. In the present embodiment, a coil spring 76 is provided between the inner cylindrical member 71 and the advance / retreat member 75 to urge the advance / retreat member 75 toward the outer cylindrical member 72.

Next, the cylindrical member 127 will be described with reference to FIG.
The cylindrical member 127 as an example of the inserted portion is formed with a circumferential groove 127A as an example of a concave portion that is formed along the circumferential direction of the cylindrical member 127 and into which the metal ball 73 enters. ing. Further, a tapered surface 127B that gradually decreases the outer diameter of the cylindrical member 127 is formed on the distal end side of the cylindrical member 127 with respect to the circumferential groove 127A.

The movement of the supply connector 70 when the water cartridge 100 is attached and detached will be described. Although the movement of the supply connector 70 will be described here, the discharge connector 80 performs the same movement.
First, the movement when the water cartridge 100 is mounted will be described.
When the water cartridge 100 is mounted, the water cartridge 100 is gripped by an operator in front of the base unit 51 (see FIG. 1), and then the opening 128 (see FIG. 4) formed at the end of the supply pipe 124. However, the water cartridge 100 is advanced to the attaching / detaching portion 61 </ b> C with the attaching / detaching portion 61 </ b> C (see FIG. 3) facing.

  When the water cartridge 100 reaches a predetermined position, the tubular member 127 starts to be inserted (inserted) into the supply connector 70. When the water cartridge 100 is further advanced, the metal ball 73 enters the circumferential groove 127A of the cylindrical member 127. Thereby, the cylindrical member 127 is prevented from being removed from the supply connector 70, and the attachment of the water cartridge 100 to the attaching / detaching portion 61C is completed.

Here, with reference to FIG. 6, the movement of each part when the metal ball 73 enters the circumferential groove 127A of the cylindrical member 127 will be described in detail.
In this embodiment, when the advancing water cartridge 100 reaches a predetermined location, the tapered surface 127B (see FIG. 7) of the cylindrical member 127 pushes the metal ball 73 in the left direction in FIG. . As a result, the advance / retreat member 75 also moves leftward in the figure, and a gap is formed between the advance / retreat member 75 and the outer cylindrical member 72.
In addition, in this embodiment, when the water cartridge 100 is mounted, the cylindrical member 127 moves along a predetermined movement path. At this time, the metal ball 73 is placed on the movement path. Further, the outer cylindrical member 72 is located beside this movement path. For this reason, when the water cartridge 100 is mounted, the movement of the metal ball 73 in the direction of retreating from the movement path is restricted.
For this reason, in this embodiment, the metal sphere 73 does not retract from the movement path of the cylindrical member 127, and as described above, the tapered surface 127B of the cylindrical member 127 moves the metal sphere 73 leftward in FIG. Extrude. In this case, relative movement of the metal sphere 73 with respect to the outer cylindrical member 72 (relative movement during insertion) occurs, and the metal sphere 73 moves toward the left end portion of the outer cylindrical member 72 in the drawing. In this embodiment, when the metal ball 73 moves, the advance / retreat member 75 moves to the left in the drawing as described above, and a gap is formed between the advance / retreat member 75 and the outer cylindrical member 72.

In this embodiment, the metal sphere 73 enters the gap, and the exposure amount (projection amount) of the metal sphere 73 from the inner peripheral surface of the inner cylindrical member 71 is reduced. In other words, the metal ball 73 is retracted from the moving path of the cylindrical member 127, and the exposure amount (protrusion amount) of the metal ball 73 from the inner peripheral surface of the inner cylindrical member 71 is reduced.
Thereby, interference with the metal ball 73 and the cylindrical member 127 can be avoided, and the cylindrical member 127 further moves to the left in FIG. When the circumferential groove 127A of the cylindrical member 127 reaches the metal sphere 73, the metal sphere 73 is accommodated in the circumferential groove 127A.

  Thereby, in this embodiment, even if it is going to remove the water cartridge 100, it is metal in the part (part shown by 7A in FIG. 7) in which the circumferential groove 127A is provided among the cylindrical members 127. The sphere 73 is caught and the movement of the cylindrical member 127 is restricted. This prevents the water cartridge 100 from coming off. In other words, the water cartridge 100 is fixed to the supply device 5.

  When the metal ball 73 enters the circumferential groove 127A, the metal ball 73 is pushed rightward in FIG. 6 by the advance / retreat member 75, and the metal ball 73 is an annular protrusion 72A provided on the outer cylindrical member 72. Move to the opposite position. As a result, the movement of the metal ball 73 in the radial direction and the outer direction of the supply connector 70 is restricted, and accordingly, the metal ball 73 is prevented from coming off from the circumferential groove 127A.

Next, with reference to FIG. 6, the movement of each part when the water cartridge 100 is removed will be described.
When removing the water cartridge 100, the operator pulls the water cartridge 100 away from the attaching / detaching portion 61C. As a result, the metal ball 73 moves in the right direction in FIG. 6, and accordingly, the inner cylindrical member 71 also moves in the right direction in the figure. At this time, the movement of the outer cylindrical member 72 and the advance / retreat member 75 is restricted by the first side edge 85 and the second side edge 86.

  As a result, in the present embodiment, only the inner cylindrical member 71 and the metal sphere 73 move in the right direction in the figure. When the inner cylindrical member 71 and the metal sphere 73 move to a predetermined location, the metal sphere 73 enters the annular recess 72E formed in the outer cylindrical member 72.

  In addition, in the present embodiment, when the water cartridge 100 is removed, the metal ball 73 moves relative to the outer cylindrical member 72, and the annular recess 72 </ b> E formed in the outer cylindrical member 72 has a metal. The sphere 73 reaches, and the metal sphere 73 enters the annular recess 72E. More specifically, when the water cartridge 100 is removed, the metal ball 73 is formed by a portion (indicated by reference numeral 7A in FIG. 7) of the cylindrical member 127 (see FIG. 7) where the circumferential groove 127A is provided. Is pressed, the metal ball 73 moves, the metal ball 73 reaches the annular recess 72E, and the metal ball 73 enters the annular recess 72E.

  As a result, the metal ball 73 comes off from the circumferential groove 127A of the cylindrical member 127. In other words, the exposure amount (protrusion amount) of the metal ball 73 from the inner peripheral surface of the inner cylindrical member 71 is reduced. In this case, the metal ball 73 is not caught on the cylindrical member 127, and the cylindrical member 127 comes out of the supply connector 70.

  Here, in the present embodiment, the water cartridge 100 can be mounted simply by moving the water cartridge 100 to the attaching / detaching portion 61C. Further, the water cartridge 100 can be removed simply by pulling the water cartridge 100 forward. Thereby, the operator can attach and detach the water cartridge 100 with a very simple operation, and the convenience for the operator is improved.

  The positioning member 81 may have a configuration as shown in FIGS. 13 and 14 (a diagram showing another configuration example of the positioning member 81). As shown in FIG. 14, the positioning member 81 includes an upper member 91 disposed above the supply connector 70 and the discharge connector 80, and a lower member disposed below the supply connector 70 and the discharge connector 80. 92.

Each of the upper member 91 and the lower member 92 is arranged along the horizontal direction and fixed to the base unit 51 (see FIG. 2), and connected to the end of the base 93 and arranged along the vertical direction. The connector movement restricting plate 94 is provided.
A lower edge portion 94A of the connector movement restricting plate 94 provided in the upper member 91 is formed in a semicircular shape and a first accommodating groove 94C in which the supply connector 70 is accommodated. A second accommodation groove 94B in which the connector 80 is accommodated is provided.
Further, the upper edge portion 94D of the connector movement restricting plate 94 provided in the lower member 92 is also formed in a semicircular shape in the same manner as the first accommodating groove 94E that is formed in a semicircular shape and accommodates the supply connector 70. A second accommodation groove 94F in which the discharge connector 80 is accommodated is provided.

  Here, in the present embodiment, when the upper member 91 and the lower member 92 are fixed to the base unit 51, the lower edge portion 94 </ b> A provided on the upper member 91 and the lower member 92 are attached as shown in FIG. 13. The upper member 91 and the lower member 92 are fixed in a state where the upper edge portion 94D provided is abutted. At this time, the connector 70 for supply is accommodated in the first accommodating grooves 94C and 94E (see FIG. 14) provided in each of the upper member 91 and the lower member 92, and discharged into the second accommodating grooves 94B and 94F. The connector 80 is accommodated.

  Furthermore, the lower edge portion 94A of the upper member 91 and the upper edge portion 94D of the lower member 92 enter the circumferential groove 72B (see FIG. 14) provided in each of the supply connector 70 and the discharge connector 80. In addition, in the embodiment shown in FIGS. 13 and 14, a positioning member 81 as an example of an installation member is inserted into the circumferential groove 72B and over the entire circumference of the circumferential groove 72B. Thereby, in this configuration example, for example, the supply connector 70 and the discharge connector 80 are more reliably fixed as compared to the configuration shown in FIG.

  In addition, in the configuration example shown in FIGS. 13 and 14, as shown in FIG. 13, each of the supply connector 70 and the discharge connector 80 is a connector provided on the positioning member 81 (over the entire circumference. The state is surrounded by the movement restricting plate 94). Therefore, the supply connector 70 and the discharge connector 80 are more firmly fixed as compared with the configuration of FIG. 3 in which the supply connector 70 and the discharge connector 80 are not surrounded all around.

  Although not described above, in the configuration example shown in FIG. 3, one side of the supply connector 70 and the discharge connector 80 (the upper side in the figure) and one of these A positioning member 81 is inserted into the circumferential groove 72B from the other side (the lower side in the figure) opposite to the side, and the supply connector 70 and the discharge connector to the base unit 51 side. 80 is fixed.

Further, the water attachment portion 61 and the air attachment portion 62 may be configured as shown in FIG. 15 (a diagram showing another configuration example of the water attachment portion 61 and the air attachment portion 62).
In the configuration example shown in FIG. 15, similarly to the above, a support plate 61A that supports the cartridge from below and a regulating member 61B that regulates the lateral movement of the cartridge are provided. Further, an attaching / detaching portion 61C for attaching / detaching a supply pipe (details will be described later) and a discharge pipe (details will be described later) provided in the cartridge is provided.

FIG. 16 is an enlarged view of the water attachment portion 61. The air mounting portion 62 is configured in the same manner as the water mounting portion 61.
In this configuration example, the support plate 61A and the regulating member 61B are integrally formed. More specifically, the support plate 61A and the regulating member 61B are integrally formed by performing bending processing, punching processing, or the like on one sheet metal. More specifically, in this configuration example, bending is performed on the sheet metal at a portion indicated by 16A in the drawing, a part of the sheet metal is folded back, and this part is disposed below the part serving as the base of the sheet metal. I have to.

  In the present embodiment, this folded portion functions as the support plate 61A. Further, a notch 61K is formed in a portion of the sheet metal positioned above the support plate 61A, and the cartridge is inserted into the notch 61K. In this embodiment, when the cartridge enters the notch 61K, portions of the sheet metal located on both sides of the notch 61K (portions indicated by reference numeral 16R in the drawing) move the cartridge. Be regulated.

The configuration of the detachable portion 61C will be described with reference to FIG. 17 (a diagram illustrating the configuration of the detachable portion 61C).
The detachable portion 61C is provided with a first restriction member 210 that restricts movement of the supply connector 70 and the discharge connector 80, and a second restriction member 220 that similarly restricts movement of the supply connector 70 and the discharge connector 80. It has been.

The first restricting member 210 as an example of the connector movement restricting member includes a counter plate 211 that faces the base unit 51, and further, the counter plate 211 includes a front end portion of the supply connector 70 and a front end of the discharge connector 80. A circular through hole 212 into which the portion enters is formed.
In addition, in this configuration example, the supply connector 70 and the discharge connector 80 are accommodated inside the box-shaped first restriction member 210, and the first restriction member 210 further includes a supply connector. A circular through-hole 212 is formed through which a part (tip part) of 70 and a part (tip part) of the discharge connector 80 are passed.

  In the present embodiment, when the supply connector 70 and the discharge connector 80 are about to move in the direction in which the opposing plate 211 extends (the radial direction of the through hole 212), the supply connector 70 and the discharge connector 80 are positioned around the through hole 212 in the opposing plate 211. The connector 70 for supply and the connector 80 for discharge come into contact with the portions. As a result, the movement of the supply connector 70 and the discharge connector 80 is restricted. In other words, the movement of the supply connector 70 and the discharge connector 80 in the direction orthogonal to the mounting / demounting direction of the cartridge is restricted.

Next, the second regulating member 220 will be described.
The second restricting member 220 as another example of the installation member is housed inside the first restricting member 210 and is fixed to the first restricting member 210 with a screw (not shown). Further, as shown in FIG. 17, the second restricting member 220 includes a first projecting plate 221 and a second projecting plate 222 that extend upward from the base 225 located below. Further, each of the first projecting plate 221 and the second projecting plate 222 is formed with a housing groove 223 in which the supply connector 70 and the discharge connector 80 are housed.

In the present embodiment, the supply connector 70 and the discharge connector 80 are stored in the storage groove 223, whereby the supply connector 70 and the discharge connector 80 are moved in a direction orthogonal to the mounting / demounting direction of the cartridge. It is further regulated. Further, in this example, the edge of the first protruding plate 221 enters the circumferential groove 72B provided in each of the supply connector 70 and the discharge connector 80. As a result, the movement of the supply connector 70 and the discharge connector 80 in the cartridge attaching / detaching direction is also restricted.
Here, in this configuration example, since the second restriction member 220 is accommodated inside the box-shaped first restriction member 210, the second restriction member 220 is positioned outside the first restriction member 210. As compared with the case where the second restricting member 220 is exposed, the appearance of the detachable portion 61C is prevented from being deteriorated.

Next, the internal structure of the water cartridge 100 will be described.
FIG. 8 is a perspective view of the water cartridge 100 with the filter housing member 110 removed. In addition, FIG. 8 is a view showing the internal structure of the water cartridge 100 from the bottom side of the water cartridge 100.

  Inside the water cartridge 100, a cylindrical tubular member 130 disposed along the axial direction (height direction) of the water cartridge 100 is provided. Further, a filter (hollow fiber filter) 140 is accommodated in the cylindrical member 130. Further, a closing member 150 that closes one end of the cylindrical member 130 is provided. The closing member 150 is fixed to the back surface of the lid member 120. Further, the closing member 150 is formed with a discharge opening (described later) used for discharging water in the closing member 150.

  In the water cartridge 100 of the present embodiment, the water supplied through the supply pipe 124 flows into a gap formed between the back surface of the lid member 120 and the outer surface (upper surface) of the closing member 150. Then, this water moves as indicated by an arrow 8A in the figure, and reaches the outer peripheral surface of the cylindrical member 130.

  Thereafter, the water passes through a plurality of through holes 131 formed in the tubular member 130 and enters the inside of the tubular member 130. Thereafter, the water goes to the closing member 150. At this time, impurities contained in the water are removed by the filter 140. Thereafter, the water is discharged out of the water cartridge 100 through the discharge opening formed in the closing member 150 and the discharge pipe 125.

FIG. 9 is a perspective view of the closing member 150.
The closing member 150 is provided with a closing member main body 151 that is formed in a cylindrical shape and has an outer peripheral surface 151 </ b> A and an upper surface 151 </ b> B, and a cylindrical member 152 that extends upward from the upper surface 151 </ b> B of the closing member main body 151.

  At the upper end of the cylindrical member 152 in the figure, the discharge opening 152A described above is formed. Here, in this embodiment, the cylindrical member 152 and the closing member main body 151 are integrally formed. In the present embodiment, an O-ring 153 is attached to the upper end portion and the outer peripheral surface of the cylindrical member 152. The cylindrical member 152 is inserted into the first portion 126A provided in the discharge pipe 125 (see FIG. 4). At this time, the O-ring 153 is in close contact with the inner peripheral surface of the first portion 126A.

  Four ribs 151 </ b> C are formed on the outer peripheral surface 151 </ b> A of the closing member main body 151 along the axial direction of the closing member main body 151. The four ribs 151 </ b> C are arranged every 90 ° in the circumferential direction of the closing member main body 151. In the present embodiment, when the closing member 150 is attached to the back surface side of the lid member 120, the rib 151C faces the inner peripheral surface of the lid member 120. As a result, the gap between the inner peripheral surface of the lid member 120 and the outer peripheral surface 151 </ b> A of the closing member 150 is kept constant in the circumferential direction of the closing member 150.

  Further, the upper surface 151B of the closing member main body 151 is formed such that the diameter gradually decreases as it goes upward in the figure. In the present embodiment, the diameter of the back surface of the lid member 120 also decreases as it goes upward in the height direction of the water cartridge 100. In the present embodiment, the shape of the upper surface 151 </ b> B of the closing member main body 151 follows the shape of the back surface of the lid member 120.

  In the present embodiment, the upper surface 151B of the closing member main body 151 is obtained by combining the surface 151D extending along the height direction of the water cartridge 100 and the surface 151E extending along the direction orthogonal to the height direction. The diameter is gradually reduced. In addition, the diameter of the upper surface 151B is gradually reduced without using a curved surface like a dome shape. In this case, the manufacturing cost of the mold used for molding the closing member 150 can be further reduced as compared with the case where the diameter is reduced by a curved surface.

  FIGS. 10A, 10 </ b> B, and 10 </ b> C are diagrams for explaining the lid member 120. 1A is a top view, FIG. 1B is a cross-sectional view taken along line XB-XB in FIG. 1A, and FIG. 1C is a reference numeral in FIG. It is an enlarged view of the part shown by XC.

  As shown in FIG. 5B, and as described above, the lid member 120 includes a lid body 123 formed in a cylindrical shape and having an outer peripheral surface 121 and an upper surface 122, and the water cartridge 100. A supply pipe 124 through which the supplied water first passes and a discharge pipe 125 through which water discharged from the water cartridge 100 passes are provided. Here, as described above, each of the supply pipe 124 and the discharge pipe 125 is provided with the first part 126A extending along the vertical direction in the drawing and the second part 126B extending along the horizontal direction.

  Here, the cylindrical member 152 (see FIG. 9) of the closing member 150 described above is inserted into the first portion 126 </ b> A provided in the discharge pipe 125. Thereby, in this embodiment, the water that has reached the closing member 150 via the filter 140 (see FIG. 8) passes through the cylindrical member 152 and reaches the discharge pipe 125. In this embodiment, water passes through the discharge pipe 125 and is discharged to the outside of the water cartridge 100.

  Further, in the present embodiment, as shown in FIG. 10B, a screw portion 121A is provided on the inner peripheral surface of the lid main body 123. Here, the screw portion 121A is constituted by a trapezoidal screw. Further, the screw portion 121A is constituted by a so-called reverse screw.

  Further, as shown in FIG. 10C, the lid member 120 protrudes from the inner surface of the lid member 120 toward the opening side of the lid member 120 (downward in the drawing) and along the circumferential direction of the lid member 120. An annular protrusion 129 formed in an annular shape is formed.

  In the present embodiment, an annular groove 129 </ b> B is formed between the annular protrusion 129 and the inner peripheral surface of the lid main body 123. The annular groove 129 </ b> B is formed in an annular shape along the circumferential direction of the lid member 120. Has been. In the present embodiment, when the lid member 120 is attached to the filter housing member 110 (see FIG. 4), the opening edge of the filter housing member 110 enters the annular groove 129B. Although not shown, an O-ring is accommodated in the annular groove 129B, and water leakage from the gap between the filter accommodating member 110 and the lid member 120 is suppressed by the O-ring. .

  Here, as shown in FIG. 10C, the annular groove 129B has a structure in which the cross section is formed in a substantially rectangular shape, and corner portions 129D are formed on both sides of the bottom surface 129C. In other words, the corner portion 129D is provided at the connection portion between the bottom surface 129C of the annular groove 129B and the side surface 129E located on both sides of the annular groove 129B. In this embodiment, a curvature is given to the corner portion 129D.

  Further, in the lid member 120 of the present embodiment, the curvature is given not only to the corner portion 129D of the annular groove 129B but also to a place where the planes intersect. Here, when the curvature is applied in this way, stress concentration is suppressed, and the strength of the lid member 120 is improved.

  In the cartridge of the present embodiment, water and air are supplied to the inside, and pressure is applied to the cartridge from the inside, so that mechanical strength that can counter this is required. As in this embodiment, when the curvature is applied to a portion that can be a corner, the strength of the lid member 120 is improved as compared to the case where the curvature is not applied.

Next, the filter housing member 110 will be described.
FIGS. 11A and 11B are views for explaining the filter housing member 110. 1A is a cross-sectional view of a surface of the filter housing member 110 along the axial direction, and FIG. 1B is an enlarged view of a portion indicated by reference numeral XIB in FIG.

  As shown in FIG. 5A, on the outer peripheral surface of the filter housing member 110, on the opening side of the filter housing member 110, a screw portion that meshes with the screw portion 121A formed on the inner peripheral surface of the lid member 120. 112 is provided. In the present embodiment, the screw housing 121A formed on the inner peripheral surface of the lid member 120 and the screw portion 112 formed on the outer peripheral surface of the filter housing member 110 mesh with each other, so that the filter housing member 110 and the lid member 120 Are fixed to each other.

  Note that, similarly to the lid member 120 side, on the filter housing member 110 side, the screw portion 112 is constituted by a reverse screw. As a result, in this embodiment, the lid member 120 and the filter housing member 110 are fixed by rotating the lid member 120 counterclockwise instead of clockwise. In other words, the lid member 120 and the filter housing member 110 are fixed by rotating the lid member 120 counterclockwise in a state where the lid member 120 is viewed from the front surface side (outside) of the lid member 120. . Thus, when using a reverse screw, it becomes difficult to remove the cover member 120 from the filter housing member 110, and it becomes difficult for a person other than a service person, such as a general user, to disassemble the cartridge.

More specifically, the dental medical device 1 according to the present embodiment employs a system in which a cartridge set (entire) is replaced when the cartridge reaches the end of its life. For this reason, it is preferable that the cartridge is not disassembled. Therefore, in the present embodiment, a reverse screw is used to fix the lid member 120 and the filter housing member 110 to make it difficult to disassemble the cartridge.
Although not described above, an adhesive is applied to a portion where the screw portion 121A of the lid member 120 and the screw portion 112 of the filter housing member 110 are engaged, and the lid member 120 and the filter housing member 110 are bonded. Fixing using is also performed.

  Furthermore, in this embodiment, also in the filter housing member 110, the screw part 112 is comprised with the trapezoidal screw. As a result, in this embodiment, when the lid member 120 is attached to the filter housing member 110, the trapezoidal screws come to mesh with each other. Here, although the inventor examined by changing the kind of screw, it has confirmed from a theory or experiment that the trapezoid screw is most excellent in strength.

The filter housing member 110 will be further described with reference to FIG.
In the filter housing member 110 of the present embodiment, an annular projecting portion 113 that projects from the outer peripheral surface of the filter housing member 110 and is formed along the circumferential direction of the filter housing member 110 is formed on the bottom side of the screw portion 112. Yes. In the present embodiment, when the lid member 120 is attached to the filter housing member 110, the annular projecting portion 113 comes into contact with the opening edge of the lid member 120. Thereby, excessive tightening of the lid member 120 with respect to the filter housing member 110 is prevented.

DESCRIPTION OF SYMBOLS 5 ... Supply apparatus, 51 ... Base unit, 70 ... Supply connector, 72 ... Outer cylindrical member, 72B ... Circumferential groove, 73 ... Metal ball, 81 ... Positioning member, 100 ... Water cartridge, 127 ... Cylindrical member, 127A ... circumferential groove, 210 ... first regulating member, 220 ... second regulating member

Claims (8)

A foreign matter removing device to which a filter cartridge for removing foreign matter contained in a fluid is attached,
The device body;
A connector to which the inserted portion of the filter cartridge is inserted and fixed;
With
The connector is
A movement restricting member that enters a recess formed in the outer peripheral surface of the inserted portion to be inserted and restricts movement of the inserted portion;
A detachment preventing member that prevents the movement restricting member that has entered the dent from coming off from the dent,
With
By performing relative movement of the detachment preventing member with respect to the movement restriction member, the movement restriction member can be removed from the recess,
The foreign matter removing apparatus configured to perform the relative movement by the inserted portion when the inserted portion is pulled out from the connector. When the inserted portion pulled out from the connector is inserted into the connector, the inserted portion moves along a predetermined movement path, and the movement restricting member is on the movement path. Located further to the side of the movement path, the detachment prevention member is located, the movement of the movement restriction member in the direction to retract from the movement path is regulated by the detachment prevention member,
When the inserted portion is inserted into the connector, the movement restriction member is retracted from the movement path by performing a relative movement during insertion, which is a relative movement of the detachment prevention member with respect to the movement restriction member. Is possible,
The foreign matter removing apparatus according to claim 1, wherein when the inserted portion is inserted into the connector, the inserted portion performs relative movement during insertion. The detachment prevention member is fixed to the apparatus main body,
When the inserted portion is pulled out from the connector, the movement restricting member is pressed and moved by the inserted portion, and the relative movement is performed by moving the movement restricting member. Item 12. A foreign matter removing apparatus according to Item 1. The detachment prevention member is fixed to the apparatus main body,
When the inserted portion is inserted into the connector, the movement restricting member is pressed and moved by the inserted portion, and the movement restricting member moves, so that the relative movement during insertion is performed. The foreign matter removing apparatus according to claim 2. A groove is formed on the outer surface of the detachment preventing member,
5. The fixing device according to claim 3, wherein an installation member installed on the apparatus main body side enters the groove to fix the detachment prevention member to the apparatus main body. Foreign matter removal device. The detachment prevention member is formed in a cylindrical shape, and the detachment prevention member is arranged so that an axial direction of the detachment prevention member is along a pulling direction of the inserted portion,
The groove is formed on the outer peripheral surface of the detachment preventing member, is formed along the circumferential direction of the detachment prevention member, and is formed in an annular shape.
The installation member is inserted into the groove from one side of the detachment prevention member and the other side opposite to the one side, and the detachment prevention member is fixed to the apparatus main body. The foreign matter removing apparatus according to claim 5, wherein: The detachment prevention member is formed in a cylindrical shape, and the detachment prevention member is arranged so that an axial direction of the detachment prevention member is along a pulling direction of the inserted portion,
The groove is formed on the outer peripheral surface of the detachment prevention member, is formed along the circumferential direction of the detachment prevention member, and is formed over the entire circumference of the detachment prevention member,
The foreign matter removing apparatus according to claim 5, wherein the installation member is placed inside the groove and over the entire circumference of the groove. The connector is housed inside and has a through-hole through which a part of the connector passes, and a portion located around the through-hole is used to restrict the movement of the connector in the radial direction of the through-hole. A connector movement restricting member that
The foreign matter removing apparatus according to claim 5, wherein the installation member installed on the apparatus main body side is accommodated in the connector movement restricting member.

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