JP5885448B2 - Chemical supply device - Google Patents

Description

  The present invention relates to a chemical solution supply apparatus that supplies a chemical solution to a liquid such as water that flows intermittently. For example, the chemical solution supply device is installed in a water receiving tray for a hand-washing provided in a water storage tank of a flush toilet, or It is related with the chemical | medical solution supply apparatus which is attached to and supplies the chemical | medical solution for fragrance, deodorizing, and washing | cleaning to the water for washing.

  As this type of chemical solution supply device, for example, as shown in the examples of FIGS. 23 to 25 and the examples of FIGS. 26 to 28, a chemical solution container 100 that stores the chemical solution, and a cup shape that supports the chemical solution container 100. And a support member 101 of the type that is installed in a water tray in the upper part of the water storage tank so that the guide member 102 provided in the lower part of the support body 101 comes into contact with the water flowing into the water storage tank has been proposed. (For example, see Patent Documents 1 and 2).

  The support body 101 includes a cover member 105 that is detachably attached to the support body 101, and the cover member 105 includes a discharge member 103 connected to the discharge port of the chemical solution container 100. The chemical solution in the chemical solution container 100 is supplied from the connecting portion 110 of the discharge member 103 through the narrow tube portion 111 to the guide member 102 from the lower through hole 104. The support 101 is provided with an adjustment mechanism 112 that adjusts the amount of the chemical liquid discharged from the chemical liquid container 100. This adjustment mechanism 112 prevents excessive outflow or reverse flow of the chemical solution from the chemical solution container 100 to the guide member 102 even if the internal pressure of the chemical solution container 100 changes when the temperature of the chemical solution container 100 changes due to contact with water or the like. The buffer chamber 106 that can store the chemical solution defined between the support 101 and the cover member 105, the air circulation hole 107 that can flow air into the buffer chamber 106, and the buffer A communication hole 108 for communicating the chamber 106 and the discharge member 103 is provided.

  The chemical solution supply apparatus having the above configuration operates as follows. That is, when the temperature rises and the pressure in the chemical solution container 100 increases, the chemical solution in the chemical solution container 100 flows out from the communication hole 108 and flows into the buffer chamber 106. On the other hand, when the temperature decreases and the pressure in the chemical solution container 100 decreases, the chemical solution in the buffer chamber 106 is drawn back into the chemical solution container 100 through the communication hole 108. By such an action, it is possible to prevent the chemical liquid from being unnecessarily discharged from the chemical liquid supply device even if the temperature change is repeated. In particular, the temperature change of the chemical solution container 100 occurs both due to the change in the room temperature and the contact with the flowing water supplied to the water supply tray, and thus preventing the wasteful discharge of the chemical solution enables stable supply of the chemical solution. It is important to do. As described above, the chemical solution supply apparatus having the above-described configuration is provided with the buffer chamber 106, thereby preventing an excessive outflow of the chemical solution. As a result, the chemical solution can be discharged from the chemical solution container 100 in an accurate amount. , Stable supply can be realized.

JP 2004-300861 A JP 2006-283540 A

  However, in the chemical solution supply apparatus configured as described above, the buffer chamber 106 has the following structure, which may cause a problem of water entering the buffer chamber 106. That is, the chemical solution supply device is attached to the support 101 by fitting the chemical solution container 100 to the support 101, and is disposed, for example, below the water supply pipe on the water supply tray. In use, when a part of the water dropped from the water supply pipe onto the chemical liquid container 100 flows down along the surface of the chemical liquid container 100 and reaches the fitting portion T between the chemical liquid container 100 and the support 101, this fitting is performed. There is a risk that water may enter the support 101 through a gap inevitably generated in the joint portion T. The water that has entered the support body 101 falls along the lower surface of the chemical solution container 100 onto the buffer chamber 106 near the center of the support body 101 and then falls. In this case, if the air circulation hole 107 is provided in the upper wall 109 that covers the upper portion of the buffer chamber 106 as in the chemical solution supply apparatus having the above configuration, the water that has flowed down enters the buffer chamber 106 from the air circulation hole 107. There is a risk of intrusion. When water enters the buffer chamber 106, the chemical solution in the buffer chamber 106 is diluted by the water, and the diluted chemical solution is absorbed into the chemical solution container 100 due to a temperature change. As a result, the chemical solution in the chemical solution container 100 is diluted. Will be. This not only prevents the medicinal effect due to the appropriate amount of the chemical solution, but also lowers the original viscosity depending on the chemical solution, and may flow out excessively from the discharge port of the chemical solution container 100 and impair stable supply.

  Such a problem is a problem that may occur not only in the type installed in the water supply tray at the upper part of the water storage tank but also in the chemical solution supply apparatus of the type attached to the rim of the toilet bowl.

  The present invention has been made paying attention to the above-described problems, and even when water enters the inside from the fitting portion between the chemical solution container and the support, the water enters the buffer chamber and the chemical solution is diluted. It is an object of the present invention to provide a chemical liquid supply device that can effectively prevent the chemical liquid and can stably supply the chemical liquid.

  The above object of the present invention includes a chemical solution container that contains a chemical solution therein and has a chemical solution discharge port, and a support body to which the chemical solution container is detachably attached, and the support member includes the discharge port. A discharge member that discharges the chemical solution in the chemical solution container to the outside, and an adjustment mechanism that adjusts the amount of the chemical solution discharged from the chemical solution container, wherein the adjustment mechanism includes a bottom wall, an upper wall, and a side wall. A buffer chamber having a chemical solution storage space partitioned from the discharge member, at least one communication hole through which the chemical solution discharged from the chemical solution container can be introduced into the buffer chamber, and air to the buffer chamber At least one air circulation hole capable of flowing in, and the air circulation hole is achieved by a chemical liquid supply device provided in the side wall of the buffer chamber.

  In the chemical solution supply apparatus configured as described above, when a part of fluid such as water that flows intermittently falls on the chemical solution container, it flows down along the surface of the chemical solution container and is transmitted to the fitting portion between the chemical solution container and the support, There is a possibility that fluid may enter the support body through a gap inevitably generated in the fitting portion. However, in the chemical solution supply apparatus configured as described above, the air circulation hole is not provided in the upper wall that covers the upper portion of the buffer chamber, but is provided in the side wall of the buffer chamber. It is possible to prevent the fluid from entering. Therefore, it can prevent that the chemical | medical solution stored inside is diluted, and can maintain the chemical | medical solution density | concentration discharged | emitted from a chemical | medical solution container appropriately.

  In a preferred embodiment of the present invention, the air circulation hole is provided at an upper end portion of the side wall. According to this embodiment, for example, even when the fluid enters the support body from below, it is difficult for the fluid to get over the side wall and reach the air circulation hole, so that the fluid enters the buffer chamber from the air circulation hole. Can be prevented. Therefore, it is possible to prevent the drug solution stored in the buffer chamber from being diluted.

  In a further preferred aspect of the present invention, the buffer chamber is formed by a lower member provided on the support and a cover member fitted to the lower member from above, wherein the lower member includes the bottom wall and A first peripheral wall standing on the bottom wall; and the cover member includes a top wall and a second peripheral wall depending from the top wall, and the second peripheral wall is formed of the first peripheral wall. The side wall is formed by the first and second peripheral walls by fitting inside or outside, and the air circulation hole is formed through the first and second peripheral walls. It is a feature.

  In the above-described embodiment, if the second peripheral wall of the cover member is configured to fit inside the first peripheral wall of the lower member of the support body, the cover member and the support body are temporarily fitted. Even if there is a gap between the first and second peripheral walls, the opening to the outside of the buffer chamber is located at the upper end of the side wall of the buffer chamber. As a result, for example, even when the fluid enters the support body from below, the fluid has a high side wall and hardly reaches the opening of the gap, and therefore enters the buffer chamber from below through the gap. Can be prevented. Therefore, it is possible to prevent the drug solution stored in the buffer chamber from being diluted.

  In a further preferred aspect of the present invention, the second peripheral wall is fitted inside the first peripheral wall, and the air circulation hole extends in a vertical direction provided in the second peripheral wall. It is characterized by being formed by a slit or a through hole and a slit or a through hole provided at a position corresponding to the slit or the through hole of the first peripheral wall. In this embodiment, for example, if the air circulation hole is formed by a slit and a through hole, the position of the air circulation hole can be changed as appropriate by simply moving the through hole provided in the first peripheral wall up and down. In addition, you may form an air circulation hole with the combination of a slit and a slit, a through-hole, and a through-hole.

  In a further preferred embodiment of the present invention, the apparatus further comprises a gutter member that covers the air circulation hole. According to this embodiment, even if the fluid enters the support body from the fitting portion of the chemical solution container and the support body, the heel member functions as a heel so as to reliably prevent the fluid from reaching the air circulation hole. be able to. Therefore, the fluid can be prevented from entering the buffer chamber, and the chemical solution stored in the buffer chamber can be prevented from being diluted.

  In a further preferred aspect of the present invention, the support body has an outer shape whose length in the first direction is longer than the length in the second direction orthogonal to the length in a plan view. The hole is provided at a position facing the first direction.

  In this embodiment, when the support has an outer shape whose length in the first direction is longer than the length in the second direction orthogonal to the length in plan view, the fluid flowing on the surface of the chemical container Is made in view of the fact that it easily enters the support body from the fitting portions located on both sides in the second direction, and the air circulation hole is provided at a position farthest from the fitting portion, Even if fluid enters the support body from the fitting portion, the amount of fluid reaching the position of the air circulation hole can be suppressed. Therefore, the infiltration of the fluid into the buffer chamber can be suppressed, and the chemical solution stored in the buffer chamber can be prevented from being diluted.

  According to the chemical solution supply apparatus of the present invention, since the air circulation hole is provided in the side wall instead of the upper wall covering the upper portion of the buffer chamber, water or the like is introduced into the support body from the fitting portion between the chemical solution container and the support body. Even when the fluid enters, it is possible to effectively prevent the fluid from entering the buffer chamber and diluting the chemical solution, and the chemical solution can be supplied stably.

It is a front view of the chemical | medical solution supply apparatus which concerns on one Embodiment of this invention. It is a side view of FIG. It is an exploded view of the chemical | medical solution supply apparatus of FIG. It is a disassembled perspective view of the cover member and support body of the chemical | medical solution supply apparatus of FIG. It is a top view of the support body of FIG. It is a bottom view of the support body of FIG. It is sectional drawing of the support body of FIG. It is a perspective view from the diagonally downward direction of the cover member of FIG. It is a top view of the cover member of FIG. It is sectional drawing of the cover member of FIG. It is sectional drawing of the support body equipped with the cover member of FIG. It is a disassembled perspective view of the cover member and support body of the chemical | medical solution supply apparatus which concern on other embodiment. It is sectional drawing of the support body equipped with the cover member of embodiment of FIG. It is a disassembled perspective view of the cover member and support body of the chemical | medical solution supply apparatus which concern on other embodiment. It is sectional drawing of the support body equipped with the cover member of embodiment of FIG. It is a fragmentary sectional view which shows the modification of the support body which mounted | wore with the cover member of FIG. It is a front view of the chemical | medical solution supply apparatus which concerns on other embodiment. It is an exploded view of the chemical | medical solution supply apparatus of FIG. It is a fragmentary sectional view of the principal part of the chemical | medical solution supply apparatus of FIG. (A) is a top view of the guide member 53 of FIG. 18, (b) is a side view of (a). It is the perspective view seen from the back of the chemical solution supply device concerning other embodiments. It is a disassembled perspective view of the chemical | medical solution supply apparatus of FIG. (A) is a front view of the chemical | medical solution supply apparatus of a prior art example, (b) is a side view of (a). It is a disassembled perspective view of the cover member and support body of FIG. It is sectional drawing of the support body which mounted | wore the cover member of FIG. (A) is a front view of the chemical | medical solution supply apparatus of a prior art example, (b) is a side view of (a). It is a disassembled perspective view of the cover member and support body of the chemical | medical solution supply apparatus of FIG. It is sectional drawing of the support body equipped with the cover member of FIG.

  Hereinafter, the actual form of the present invention will be described with reference to the accompanying drawings. 1 and 2 show the appearance of a chemical solution supply apparatus 1 according to an embodiment of the present invention, and FIG. 3 shows an exploded view of the chemical solution supply apparatus 1 shown in FIGS. In addition, the chemical | medical solution supply apparatus 1 of the example of illustration shows the thing of the type installed in the water receiving tray for hand-washing provided in the upper part of the water storage tank of a flush toilet.

  The chemical solution supply apparatus 1 includes a chemical solution container 2 for storing a chemical solution for aroma, deodorization, and toilet cleaning, and a cup-like support 3 to which the chemical solution container 2 is detachably attached. The support 3 includes a cover member 4 (shown in FIG. 4) that is detachably attached to the support 3. Further, the support body 3 includes a guide member 5 that guides the chemical liquid discharged from the chemical liquid container 2 to a position in contact with the intermittently flowing liquid outside the support body 3. The chemical solution supply apparatus 1 is installed such that the guide member 5 and the long leg portion 36 of the support 3 are inserted into the drain outlet of the water supply tray.

  The chemical solution container 2 includes a chemical solution storage unit 20 that can store a chemical solution, and a discharge port 21 for discharging the chemical solution is provided on an end surface (lower end surface in FIG. 3) of the chemical solution storage unit 20. The chemical solution container 2 is partially or entirely made of a transparent or translucent material, and the remaining amount of the chemical solution can be confirmed from the outside. A cap 22 is put on the discharge port 21.

  As shown in FIGS. 3 to 7, the support 3 has an opening in the upper portion, and in a plan view, the length in the first direction (the left-right direction in FIG. 5) is a second direction ( It has a horizontally long (or vertically long) outer shape that is longer than the length in the vertical direction of FIG. In this embodiment, it is formed in a substantially elliptical shape in plan view. The support body 3 includes a bottom surface portion 30 and a side surface portion 31 so that the recessed one end portion 23 (lower end portion in FIG. 3) of the chemical liquid storage portion 20 of the chemical liquid container 2 is fitted inside the side surface portion 31. It has become.

  Two long legs 36 and four short legs 38 arranged around the long legs 36 are provided upright on the lower surface of the bottom surface 30. The long leg portion 36 can be inserted into the water outlet of the water supply tray. The short leg portion 38 supports the support 3 substantially horizontally on the water supply tray in a state where the long leg portion 36 is inserted into the drain outlet. A substantially rectangular frame-shaped first peripheral wall (hereinafter, referred to as “inner side wall” in the present embodiment) 41 is fitted on the upper surface of the bottom surface portion 30, which will be described later. In this embodiment, it is referred to as an “outer wall”) 32.

  As shown in FIGS. 4 and 8 to 10, the cover member 4 is formed in a box shape having an open lower end, and has a substantially rectangular upper surface portion 40 in a plan view and a substantially rectangular shape that hangs down from the upper surface portion 40. A frame-shaped inner wall 41 is provided. The cover member 4 is attached to the support 3 by fitting the inner wall 41 inside the outer wall 32 of the support 3. The upper surface portion 40 includes a circular lower step portion 40a at the center thereof and an upper step portion 40b around the lower step portion 40a located at a position higher than the lower step portion 40a. A discharge member 42 that is connected to the discharge port 21 of the chemical solution container 2 and discharges the chemical solution in the chemical solution container 2 to the outside is provided at the central portion of the lower step portion 40a.

  The discharge member 42 is integrally formed with the lower step portion 40a of the cover member 4, and is more cylindrical than the connection portion 42a provided at the lower end portion of the connection portion 42a and the cylindrical connection portion 42a protruding from the upper surface of the lower step portion 40a. A small-diameter cylindrical thin tube portion 42b. The connection part 42 a is connected to the discharge port 21 of the chemical liquid container 2. The connecting portion 42a and the thin tube portion 42b communicate with each other through a flow hole 42c, and the inside of the connecting portion 42a and the thin tube portion 42b constitutes a chemical solution passage for passing the chemical solution from the chemical solution container 2 to a guide member 5 described later. ing. A plurality of communication holes 61 (three in the illustrated example) are formed around the thin tube portion 42b in the connection portion 42a. The communication hole 61 constitutes an adjusting mechanism 6 described later.

  The upper surface portion 40 of the cover member 4 further includes a surrounding wall 43 outside the inner side wall 41. The surrounding wall 43 includes an extended portion 43a extending horizontally from the upper end of the inner wall 41 beyond the upper end of the outer wall 32 of the support 3, and a substantially rectangular frame-shaped hanging wall 43b hanging from the distal end portion of the extended portion 43a. The hanging wall 43b is separated from the outer peripheral surface of the outer wall 32.

  Returning to FIGS. 3 to 7, an opening 33 for diffusing the fragrance component of the chemical solution to the outside is formed in the side surface portion 31 of the support 3. In addition, an opening 39 is formed in the outer position of the outer wall 32 of the bottom surface portion 30 to discharge the water supplied to the water supply tray into the outside of the support body 3. .

  A circular bottom hole 34 is formed in the center of the region surrounded by the outer wall 32 of the bottom surface 30 of the support 3. The narrow tube portion 42 b of the discharge member 42 is fitted into the bottom hole 34. And below the bottom hole 34, the guide member 5 which guides the chemical | medical solution discharged | emitted from the thin tube part 42b below is provided. The guide member 5 is integrally provided on the lower surface of the bottom surface portion 30, and a fitting protrusion 50 that fits into the narrow tube portion 42 b of the discharge member 42 is integrally provided on the upper end portion of the guide member 5. . A vertical groove 51 extending from the upper end to the lower end is formed on the outer surface of the fitting protrusion 50, and a chemical solution outlet path is formed between the vertical groove 51 and the inner peripheral surface of the narrow tube portion 42 b. . The cross-sectional shape of the vertical groove 51 can be various shapes such as a semicircular shape and a square shape such as a triangle or a quadrangle. Moreover, it is desirable that the cross-sectional dimensions be such that the chemical solution can be led out along the lead-out path by capillary action. Around the bottom hole 34, an annular portion 35 that is fitted to the outside of the thin tube portion 42 b is provided upright in order to securely hold the fitting state of the thin tube portion 42 b and the fitting protrusion 50.

  The guide member 5 is formed in a plate shape, and the upper end portion is in contact with the lower end of the narrow tube portion 42b. A large number of fine grooves 52 extending in the vertical direction are formed on the front and back plate surfaces of the guide member 5. The guide member 5 is located between the two long legs 36 and is inserted into the drain outlet of the water supply tray together with the long legs 36. However, the guide member 5 is formed slightly shorter than the long leg portion 36, and only the lower end portion thereof can be inserted into the drain outlet. A shielding member 37 is provided between the guide member 5 and the long leg portion 36. The shielding member 37 is formed to be shorter than the guide member 5, the long leg portion 36 positions the support 3 at the drain outlet, and the guide member 5 comes into contact with the water flowing down to the drain outlet, whereby the guide member 5. The upper chemical solution is washed away by water and flows into the water storage tank. On the other hand, the shielding member 37 restricts the flowing-down water from flowing backward into the support 3 from the lead-out path.

  The support 3 is assembled by fitting the inner wall 41 of the cover member 4 inside the outer wall 32 of the bottom surface 30. Accordingly, as shown in FIG. 11, a buffer chamber 60 is formed in the support 3 between the cover member 4 and a space in which the chemical solution partitioned from the thin tube portion 42 b can be stored. The buffer chamber 60 is surrounded by a region (bottom wall) surrounded by the outer wall 32 of the bottom surface portion 30, the outer wall 32 and the inner wall 41 (side wall), and the upper surface portion 40 (upper wall) of the cover member 4. ing. A region surrounded by the outer wall 32 in the outer side wall 32 and the bottom surface portion 30 constitutes a lower member that forms the buffer chamber 60. The buffer chamber 60 constitutes an adjustment mechanism 6 that adjusts the amount of the chemical solution discharged from the chemical solution container 2, and the adjustment mechanism 6 includes the buffer chamber 60, the communication hole 61, and the air circulation hole 62 described above. Composed. The communication hole 61 can introduce a part of the chemical liquid discharged from the chemical liquid container 2 to the connection portion 42 a of the discharge member 42 into the buffer chamber 60.

  The air circulation hole 62 is for allowing air to flow into the buffer chamber 60. The air circulation hole 62 is provided on a side wall constituting the buffer chamber 60. In the present embodiment, a through hole 63 is formed in the outer wall 32 by cutting the upper end portion of the outer wall 32 of the support 3 into a concave shape. On the other hand, the inner wall 41 of the cover member 4 is formed with a slit 64 extending in the vertical direction from the upper end to the lower end. The slit 64 is formed at a position corresponding to the through hole 63 of the outer wall 32 of the support 3, and the cover member 4 is attached to the support 3 so that the through hole 63 and the slit 64 coincide with each other. An air circulation hole 62 facing in the horizontal direction is provided on the side wall of the buffer chamber 60. In this embodiment, the air circulation hole 62 is provided in the width center part of two sides which the side walls (the outer side wall 32 and the inner side wall 41) of the substantially rectangular frame-shaped buffer chamber 60 oppose. In addition, in this embodiment, the air circulation holes 62 are fitting portions located on both sides of the elliptical short axis S (second direction) in the fitting portion T between the chemical liquid container 2 and the support 3. It is provided at a position farthest from T1 (shown in FIGS. 2 and 5), that is, a position facing the direction of the major axis L (first direction) of the support body 3 that is substantially elliptical in plan view.

  The arrangement of the air circulation holes 62 is not necessarily limited to this embodiment, and can be provided at any position on the side wall of the buffer chamber 60. In the present embodiment, the air circulation hole 62 is provided at the upper end of the side wall of the buffer chamber 60, but it can also be provided at a position below the upper end. However, it is not preferable that the water supply tray is arranged too low, because when the water supplied to the water supply tray enters the support 3, the water may enter the buffer chamber 60 through the air circulation hole 62. . In the present embodiment, the air flow holes 62 are formed by providing the longitudinal slits 64 in the inner wall 41. However, the inner wall 41 is provided with through holes in the same manner as the outer wall 32, and the through holes are formed between the through holes. May be formed so that the air circulation holes 62 are formed. Further, the air flow hole 62 may be formed by providing a through hole in the inner wall 41 and providing a longitudinal slit in the outer wall 32, and further by providing a longitudinal slit in both the inner wall 41 and the outer wall 32. The air circulation hole 62 may be formed. Moreover, in this embodiment, although the air circulation hole 62 has faced the horizontal direction, you may form it so that it may become downward (diagonally downward) rather than a horizontal direction.

  The adjustment mechanism 6 described above acts as follows on the temperature change of the chemical solution container 2. For example, when the temperature rises and the chemical liquid container 2 is warmed, the air in the chemical liquid container 2 expands and the chemical liquid container 2 has a positive pressure. In this case, the chemical solution in the chemical solution container 2 is pushed out and discharged from the discharge port 21, but the discharged chemical solution flows into the lead-out path from the thin tube portion 42 b and also flows into the buffer chamber 60 through the communication hole 61. Therefore, it is possible to prevent the chemical liquid from flowing out excessively into the outlet path.

  On the other hand, when the temperature of the chemical solution container 2 is lowered by being cooled by running water or the like, the air in the chemical solution container 2 contracts and the inside of the chemical solution container 2 becomes negative pressure. In this case, the chemical solution in the buffer chamber 60 that is at atmospheric pressure or indoor pressure due to the action of the air circulation hole 62 is sucked into the chemical solution container 2 through the communication hole 61. Therefore, it is suppressed that the water on the guide member 5 or the diluted chemical solution is returned to the chemical solution container 2 side through the thin tube portion 42b. Further, the discharge of the chemical liquid is prevented from being restricted by the negative pressure in the chemical liquid container 2. Thus, even when a pressure change occurs in the chemical solution container 2 due to a temperature change, the adjustment mechanism 6 causes the chemical solution to flow between the chemical solution container 2 and the buffer chamber 60. Can be prevented from flowing out excessively or being restricted from flowing out.

  In the chemical solution supply apparatus 1 having the above-described configuration, after the outer wall 32 of the support 3 is fitted to the outer side of the inner wall 41 of the cover member 4 to form the buffer chamber 60, the discharge member 42 extending upward from the cover member 4. The connecting portion 42a is assembled by inserting the cap 22 through the outlet 21 of the chemical liquid container 2 and inserting it. And the long leg part 36 of the support body 3 is inserted in the drainage hole of the water receiving tray of the water storage tank for flush toilets. Thereby, the chemical solution in the chemical solution container 2 flows into the narrow tube portion 42b from the connection portion 42a and is discharged to the guide member 5 from the outlet path, and the chemical solution on the guide member 5 is washed away with water supplied to the water supply tray at the time of flushing. And flows into the water storage tank through the drainage hole. Note that the chemical solution supply device 1 having the above-described configuration also discharges the chemical solution over time even when the chemical solution on the guide member 5 is not washed away by the water supplied to the water supply tray at the time of flushing. It is also possible to provide a mechanism for supplying the chemical solution directly to the water storage tank.

  At this time, the water that has fallen onto the chemical liquid container 2 from the water supply pipe on the water supply tray flows down along the surface of the chemical liquid container 2 and is transmitted to the fitting portion T between the chemical liquid container 2 and the support body 3. There is a risk that water may enter the support 3 through a gap inevitably generated in the portion T. However, the air circulation hole 62 is not provided in the upper wall that covers the upper portion of the buffer chamber 60, but is provided in the side wall of the buffer chamber 60 so as to face the horizontal direction or downward in the horizontal direction. The water can be prevented from entering the buffer chamber 60 from the air circulation hole 62. Therefore, as a result of preventing the chemical liquid stored inside from being diluted, the chemical liquid in the chemical liquid container 2 is prevented from being diluted due to the return of the chemical liquid, and the concentration of the chemical liquid discharged from the chemical liquid container 2 can be appropriately maintained. .

  Further, since the air circulation hole 62 is provided at the upper end portion of the side wall of the buffer chamber 60, even when the water supplied to the water supply tray during the flushing enters the support 3 from below, the water gets on the side wall. As a result, it is difficult to reach the air circulation hole 62 and as a result, the air circulation hole 62 is prevented from entering the buffer chamber 60. Therefore, it is possible to prevent the chemical solution stored in the buffer chamber 60 from being diluted.

  In addition, the air circulation holes 62 are formed from the fitting portions T1 located on both sides of the elliptical short axis S (second direction) where the water flowing on the surface of the chemical solution container 2 is more likely to enter the support 3. Since it is provided at the most distant position, even if water enters the support 3 from above through the lower end surface of the chemical liquid container 2 from the fitting portion T1, the water that reaches the position of the air circulation hole 62 is reached. The amount of is suppressed. As a result, the intrusion of water into the buffer chamber 60 can be suppressed, and thus the chemical solution stored in the buffer chamber 60 can be prevented from being diluted.

  Further, the cover member 4 has a structure in which the inner wall 41 is fitted inside the outer wall 32 of the support 3. Therefore, even if the cover member 4 and the support 3 are not completely fitted and a gap is generated between the outer wall 32 and the inner wall 41, the opening of the gap to the outside of the buffer chamber 60 is not buffered. It will be located at the upper end of the side wall of the chamber 60. As a result, even if the water supplied to the water supply tray during flushing enters the support 3 from below, the side wall becomes a high wall and hardly reaches the opening of the gap. Intrusion into the buffer chamber 60 is prevented. Therefore, it is possible to prevent the chemical solution stored in the buffer chamber 60 from being diluted.

  The cover member 4 further includes an surrounding wall 43 that covers the upper side of the air circulation hole 62. Therefore, even if water enters the support 3 from above through the lower end surface of the chemical solution container 2 from the fitting portion T, the water reaches the air circulation hole 62 because the surrounding wall 43 functions as a ridge. Can be reliably prevented. Therefore, as a result of preventing water from entering the buffer chamber 60, the chemical solution stored in the buffer chamber 60 can be prevented from being diluted. In addition, although the intrusion prevention effect of the water by this surrounding wall 43 can also be acquired only by the extension part 43a, it is strengthened by providing the drooping wall part 43b.

  As mentioned above, although one Embodiment of this invention was explained in full detail, the specific aspect of this invention is not limited to above-described embodiment. For example, in the first embodiment described above, the chemical container 20 and the discharge port 21 of the chemical container 2 are provided as one, and the buffer body 60 and the like are provided in the support 3 correspondingly. Two or more of each can be used. 12 and 13 show an example in which the present invention is applied to a chemical solution supply apparatus having two buffer chambers and the like shown in FIGS. Note that the basic configuration is the same as the configuration of the first embodiment described above, and the corresponding components are denoted by the same reference numerals and detailed description thereof is omitted.

  The position where the air circulation holes 62 are provided is different from the apparatus shown in FIGS. That is, in the second embodiment, a through hole 65 is formed in the upper end portion of the second peripheral wall 41 (inner wall) of the cover member 18. On the other hand, a through hole 66 is formed in the first peripheral wall 32 (outer wall) of the support body 17 at a position corresponding to the through hole 65 of the cover member 18. As a result, the cover member 18 is attached to the support body 17 and the through holes 65 and 66 are made to coincide with each other, so that the air circulation holes 62 facing in the horizontal direction are formed on the side walls (inner side wall and outer side wall) of the buffer chamber 60. ing. The through holes 65 and 66 may be formed so that the air circulation hole 62 is downward (obliquely downward) from the horizontal direction.

  Also in the second embodiment, the air circulation hole 62 is provided not on the upper wall covering the upper portion of the buffer chamber 60 but on the side wall of the buffer chamber 60 so as to face the horizontal direction or downward in the horizontal direction. Even if water enters the support body 17 from above through the lower end surface of the chemical liquid container from the fitting portion between the chemical liquid container and the support body 17, the water enters the buffer chamber 60 from the air circulation hole 62. Can be prevented. Therefore, it is possible to prevent the chemical solution stored in the buffer chamber 60 from being diluted.

  Further, since the air circulation hole 62 is provided at the upper end portion of the side wall of the buffer chamber 60, even when the water supplied to the water supply tray during the flushing enters the support 17 from below, the water gets on the side wall. As a result, it is difficult to reach the air circulation hole 62 and as a result, the air circulation hole 62 is prevented from entering the buffer chamber 60. Therefore, it is possible to prevent the chemical solution stored in the buffer chamber 60 from being diluted.

  In the first embodiment, the cover member 4 has an inner fitting structure in which the inner wall 41 (second peripheral wall) is fitted inside the outer wall 32 (first peripheral wall) of the support 3. However, as shown in FIG. 14 and FIG. 15, the opposite outer fitting structure may be employed. 14 and 15 show the configuration of the support 7 of the chemical solution supply apparatus according to the third embodiment. Note that the basic configuration is the same as the configuration of the first embodiment described above, and the corresponding components are denoted by the same reference numerals and detailed description thereof is omitted.

  In the third embodiment, the first peripheral wall 32 erected on the bottom surface portion 30 of the support 7 is an inner side wall positioned inside, and the second peripheral wall 41 depending from the upper surface portion 40 of the cover member 8 is an outer side. The outer wall is located at Then, the first peripheral wall 32 (inner wall) of the support body 7 is fitted inside the second peripheral wall 41 (outer wall) of the cover member 8, so that the cover member 8 and the support body 7 are interposed. A buffer chamber 60 is formed. In the third embodiment, the cover member 8 further includes a locking claw 80 at the lower end portion of the second peripheral wall 41 (outer wall). On the other hand, the bottom surface portion 30 of the support body 7 is provided with an engaging step portion 70 that can be engaged with the locking claw 80, and the engaging claw 80 and the engaging step portion 70 are arranged outside the buffer chamber 60. The cover member 8 is fixed to the support 7 by engaging with each other.

  A through hole 67 is formed at the upper end of the first peripheral wall 32 (inner wall) of the support 7 by being cut out in a concave shape. On the other hand, a through hole 68 is also formed in the upper end portion of the second peripheral wall 41 (outer wall) of the cover member 8. The through holes 67 and 68 are both formed at corresponding positions, and the cover member 8 is mounted on the support 7 and the through holes 67 and 68 are aligned so that the side walls (inner and outer walls) of the buffer chamber 60 are aligned. ) Is formed with an air circulation hole 62 facing in the horizontal direction. Note that the through holes 67 and 68 may be formed so that the air circulation holes 62 are directed downward (obliquely downward) from the horizontal direction.

  Also in the third embodiment, the air circulation hole 62 is provided not on the upper wall covering the upper portion of the buffer chamber 60 but on the side wall of the buffer chamber 60 so as to face the horizontal direction or downward in the horizontal direction. Even if water enters the support body 7 from above through the lower end surface of the chemical liquid container from the fitting portion between the chemical liquid container and the support body 7, the water enters the buffer chamber 60 from the air circulation hole 62. Can be prevented. Therefore, it is possible to prevent the chemical solution stored in the buffer chamber 60 from being diluted.

  Further, since the air circulation hole 62 is provided at the upper end portion of the side wall of the buffer chamber 60, even when the water supplied to the water supply tray during the flushing enters the support body 7 from below, the water gets on the side wall. As a result, it is difficult to reach the air circulation hole 62 and as a result, the air circulation hole 62 is prevented from entering the buffer chamber 60. Therefore, it is possible to prevent the chemical solution stored in the buffer chamber 60 from being diluted.

  In addition, you may make it provide the eaves member which covers the upper direction of the air circulation hole 62 in the cover member 8 similarly to the surrounding wall 43 of above-mentioned 1st Embodiment. Thereby, it is possible to reliably prevent water that enters the support 7 from above through the lower end surface of the chemical liquid container from the fitting portion between the chemical liquid container and the support 7 and reaches the air circulation hole 62. .

  In addition, as shown in FIG. 16, the first peripheral wall 32 (inner side wall) of the support body 7 is provided with an overhanging portion 32a projecting outward in the horizontal direction, and the through hole 69 is provided only in the overhanging portion 32a. May be. In this case, a gap is provided between the lower end portion of the second peripheral wall 41 (outer wall) of the cover member 8 and the bottom surface portion 30 of the support 7. As a result, an air circulation hole 62 is formed in the side wall (inner wall 32) of the buffer chamber 60 so as to face downward. In this embodiment, since the air through-hole 62 faces downward, it is possible to reliably prevent water from entering the buffer chamber 60 from the air circulation hole 62. The overhanging portion 32a does not need to protrude in the horizontal direction and may protrude upward (obliquely upward) from the horizontal direction.

  FIGS. 17-20 has shown the chemical | medical solution supply apparatus 1 'which concerns on 4th Embodiment. In the first to third embodiments, the guide member 5 is projected below the support 3, the guide member 5 is inserted into the drain of the water supply tray, and the chemical solution is discharged to the drain through the guide member 5. However, the chemical solution supply apparatus 1 ′ of the fourth embodiment is configured to discharge the chemical solution directly onto the water supply tray. In addition, the chemical | medical solution container 2 is the same as that of the structure of above-described 1st Embodiment, and abbreviate | omits detailed description by attaching | subjecting the same code | symbol.

  The chemical liquid device 1 ′ of the fourth embodiment includes a chemical liquid container 2 and a cup-shaped support 9 to which the chemical liquid container 2 is detachably attached. The support body 9 includes a cover member 10 that is detachably attached to the support body 9, and a plate-shaped guide member 53 that is interposed between the cover member 10 and the bottom surface portion 90 of the support body 9. Four long legs 93 and four short legs 94 arranged around the long legs 93 are erected on the lower surface of the bottom surface 90 of the support 9. Further, in addition to the opening 95 from which the guide member 53 protrudes, an opening 96 for diffusing the fragrance component of the chemical solution to the outside is formed in the side surface 91 of the support 9. A plurality of openings 97 for preventing water from staying in the support 9 are formed.

  The cover member 10 is formed in a box shape having an open lower end, and includes an upper surface portion 11 having a rectangular shape in plan view and a side surface portion 12. By engaging the engaging claw 13 provided at the lower end portion of the side surface portion 12 with an engagement step portion (not shown) provided on the bottom surface portion 90 of the support body 9, the cover member 10 is supported by the support body 9. Fixed to.

  The upper surface portion 11 is composed of a circular lower step portion 11a at the center thereof and an upper step portion 11b around the lower step portion 11a at a position higher than the lower step portion 11a, and the medicinal solution container 2 is disposed at the center portion of the lower step portion 11a. A cylindrical connection portion 14 is provided which is connected to the discharge port 21 and discharges the chemical solution in the chemical solution container 2 to the outside. A cylindrical thin tube portion 15 having a smaller diameter than the connection portion 14 is integrally provided inside the lower end portion of the connection portion 14. The connecting portion 14 and the thin tube portion 15 communicate with each other through the flow hole 16, and the inside of the connecting portion 14 and the thin tube portion 15 constitutes a chemical solution passage for flowing the chemical solution from the chemical solution container 2 to a guide member 53 described later. ing. A plurality of communication holes 61 ′ are formed around the thin tube portion 15. This communication hole 61 ′ constitutes the adjustment mechanism 6.

  The guide member 53 is made of plastic and is placed on the bottom surface 90 of the support 9. The guide member 53 includes a base portion 54 with which one end portion of the thin tube portion 15 substantially contacts, and a pair of guide plates 55 inclined downward from both side edges (upper and lower sides of FIG. 20A) of the base portion 54. . A plurality of grooves 56 through which a chemical solution can flow are formed in the width direction (left and right direction in FIG. 20A) in the vicinity of the portion where the thin tube portion 15 abuts in the base portion 54, and of these grooves 56, What is arranged in the center extends to the end of the guide plate 55 to form a guide groove 57. The guide groove 57 guides the chemical solution from the base 54 to the guide plate 55 side. The end of each guide plate 55 protrudes from the opening 95 of the support 9.

  By mounting the cover member 10 on the bottom surface portion 90 of the support body 9 with the guide member 53 interposed, the base body 54 (bottom wall) of the guide member 53 and the side surface portion of the cover member 10 are attached to the support body 9. A buffer chamber 60 ′ having a space for storing a chemical solution surrounded by 12 (side wall) and the upper surface portion 11 (upper wall) of the cover member 10 is formed. The buffer chamber 60 'constitutes the adjusting mechanism 6, and plays the same role as the above-described embodiment together with the communication hole 61' and the air circulation hole 62 '.

  Also in the fourth embodiment, the air circulation hole 62 'is formed in the side wall constituting the buffer chamber 60'. In the illustrated example, a through hole is formed in the upper end portion of the side surface portion 12 of the cover member 10, so that an air circulation hole 62 ′ facing in the horizontal direction is formed in the side wall of the buffer chamber 60 ′. The through hole may be formed so that the air circulation hole 62 ′ is downward (obliquely downward) from the horizontal direction. Also in the fourth embodiment, the air circulation hole 62 ′ is more easily penetrated into the support 9 by the water flowing on the surface of the chemical liquid container 2 in the fitting portion T between the chemical liquid container 2 and the support 9. , Provided at a position farthest from the fitting portion T1 located on both sides of the minor axis of the ellipse, that is, a position facing the major axis direction of the support body 9 that is substantially elliptical in plan view.

  The chemical solution supply apparatus 1 ′ having the above configuration operates as follows. First, the chemical solution is discharged from the chemical solution container 2 to the connection portion 14 and flows out onto the guide member 53 through the narrow tube portion 15. On the guide member 53, a part is held on the base 54 and flows out on the guide plate 55 through the guide groove 57 and is held on this. When water is supplied to the water supply tray at the time of flushing, the water comes into contact with the chemical solution on the guide plate 55 protruding from the opening 95 of the support 9 and is washed away. Thus, the chemical solution flows out along with the running water onto the water supply tray and flows into the water storage tank from the drain outlet.

  Also in the fourth embodiment, the air circulation hole 62 ′ is not in the upper wall that covers the upper portion of the buffer chamber 60 ′, but in the side wall (side surface portion 12 of the cover member 10) of the buffer chamber 60 ′ in the horizontal direction or the horizontal direction. Since it is provided so as to face downward, even if water enters the support body 9 from above through the lower end surface of the chemical liquid container 2 from the fitting portion T between the chemical liquid container 2 and the support body 9, The water can be prevented from entering the buffer chamber 60 ′ from the air circulation hole 62 ′. Therefore, it can prevent that the chemical | medical solution stored in the buffer chamber 60 'is diluted.

  Further, since the air circulation hole 62 ′ is provided at the upper end portion of the side wall of the buffer chamber 60 ′, the water is supplied to the side wall even when water supplied to the water supply tray at the time of flushing enters the support 9 from below. , It is difficult to reach the air circulation hole 62 ′ and as a result, the air circulation hole 62 ′ is prevented from entering the buffer chamber 60 ′. Therefore, it can prevent that the chemical | medical solution stored in the buffer chamber 60 'is diluted.

  In addition, you may make it provide the cover member 10 the cover member which covers the upper direction of air circulation hole 62 'similarly to the surrounding wall 43 of above-mentioned 1st Embodiment. This reliably prevents water entering the support body 9 from above from the fitting portion T between the chemical liquid container 2 and the support body 9 from the upper side through the lower end surface of the chemical liquid container 2 from reaching the air circulation hole 62 '. can do.

  FIG. 21 and FIG. 22 show a chemical liquid supply apparatus 1 ″ according to the fifth embodiment. The first to fourth embodiments are chemical liquid supply devices of the type disposed on the water storage tank of the flush toilet, but the fifth embodiment is a type of chemical liquid supply that is used by being hung on the toilet rim. Device. As shown in FIGS. 21 and 22, this type of chemical solution supply apparatus 1 ″ also includes a chemical solution container 2 ″ in which a chemical solution is stored and a support 3 ″ that supports the chemical solution container 2 ″. In addition, a suspension member 70 for hanging the device 1 ″ on the toilet rim is provided. The basic configuration is the same as the configuration of the chemical solution supply apparatus of the type installed on the water storage tank described above.

  The support 3 ″ has a bottom surface portion 30 ″ and a side surface portion 31 ″. The bottom surface portion 30 ″ is composed of a base portion 30A ″ having a substantially rectangular shape in plan view and a movable portion 30B ″ that is swingably connected to one side of the base portion 30A ″. Side surfaces 31 ″ are provided in a U-shape in plan view on three sides other than the side provided with. Accordingly, the support 3 '' is formed in a cup shape in which a wall on one side is cut out and a part of the base 30A '' and the movable part 30B '' protrude from the open part 30C ''. It is configured as follows. Then, water flows from the open portion 30 </ b> C ″ into the support 3 ″. A support column 72 extending upward is attached to the center of the base portion 30A ″, and a hanging member 70 is attached to a space between the support column 72 and a cover member 4 ″ described later so as to move up and down. Yes. The hanging member 70 is formed in a band shape that is bent at two locations so as to be elastically deformable, and is folded as shown in FIG. 21 in the initial state. In addition, since the hanging member 70 is configured to be movable up and down, the height of the chemical container 2 '' and the support 3 '' with respect to the rim is adjusted so that the device 1 '' and the rim do not interfere with each other. can do.

  The support body 3 ″ includes a lower member 73 and a cover member 4 ″ that are detachably attached to the support body 3 ″. The cover member 4 ″ is provided outside the peripheral wall 32 ″ of the lower member 73. By fitting the peripheral wall 41 '', the upper surface 74 (bottom wall) of the lower member 73, the peripheral walls 32 '' and 41 '' (sidewall), and the cover member 4 ' A buffer chamber 60 ″ surrounded by the upper surface portion 40 ″ (upper wall) of “is formed. The buffer chamber 60 ″ constitutes the adjusting mechanism 6 and plays the same role as the above-described embodiment together with the communication hole (not shown) and the air circulation hole 62 ″.

  A through hole 76 is formed in the upper end portion of the peripheral wall 32 ″ of the lower member 73 by being cut out in a concave shape. On the other hand, a through hole 77 is also formed at the upper end of the peripheral wall 41 ″ of the cover member 4 ″. The through holes 76 and 77 are both formed at corresponding positions, and the cover member 4 ″ is mounted on the support 3 ″ via the lower member 73, and the through holes 76 and 77 coincide with each other. An air circulation hole 62 '' is formed in the side wall of the chamber 60 in the horizontal direction. Note that the through holes 76 and 77 may be formed so that the air circulation holes 62 ″ are directed downward (obliquely downward) from the horizontal direction.

  A rail member 75 extending upward is attached to a side surface of the cover member 4 ″. The rail member 75 forms a space for accommodating the hanging member 70 with the support column 72. A discharge member 42 '' connected to the discharge port 21 '' of the chemical solution container 2 '' is connected to the central portion of the upper surface 40 '' of the cover member 4 '' and discharges the chemical solution in the chemical solution container 2 '' to the outside. Is provided. In addition, two air circulation holes 62 ″ are provided around the cover member 4 ″. In addition, a circular bottom hole 34 ″ is formed at the center of the upper surface portion 74 of the lower member 73. Further, the bottom hole 34 ″ is provided with a fitting protrusion 50 ″, and an annular portion 35 ″ is erected around the bottom hole 34 ″. An opening 33 '' for discharging the water supplied into the toilet bowl during flushing into the inside of the support 3 '' is discharged to the side surface 31 '' of the support 3 ''. Is formed.

The chemical solution supply apparatus 1 '' having the above configuration operates as follows. First, the chemical solution is discharged from the chemical solution container 2 '' to the discharge member 42 '' and supplied onto the bottom surface 30 '' of the support 3 ''. And a chemical | medical solution is supplied in a toilet bowl by exposing the chemical | medical solution supplied on bottom part 30 '' with the water supplied in a toilet bowl at the time of flushing. In addition, the chemical solution supply apparatus 1 ″ having the above configuration discharges the chemical solution over time even when the chemical solution on the bottom surface portion 30 ″ is not washed away by the water supplied into the toilet bowl at the time of flushing. It is also possible to provide a mechanism for supplying the drug solution in the container 2 '' directly into the toilet bowl.

  Also in the chemical solution supply device 1 '' of the type that is used by being hung on the rim of the toilet bowl, when water is vigorously supplied into the toilet bowl at the time of flushing or the supplied water is scattered in the toilet bowl, the chemical solution container There is a possibility that water will splash on the surface of 2 ″, and the water may flow down along the surface of the chemical solution container 2 ″ and reach the fitting portion T between the chemical solution container 2 ″ and the support 3 ′. Even in this case, the air circulation hole 62 ″ is provided not on the upper wall covering the upper portion of the buffer chamber 60 ″ but on the side wall of the buffer chamber 60 ″ so as to face the horizontal direction or downward in the horizontal direction. Therefore, even if water enters the support body 3 ″ from above through the lower end surface of the chemical liquid container 2 ″ from the fitting portion T between the chemical liquid container 2 ″ and the support body 3 ′, the air circulation hole The water can be prevented from entering the buffer chamber 60 '' from 62 ''. Therefore, it is possible to prevent the drug solution stored in the buffer chamber 60 ″ from being diluted.

  Further, since the air circulation hole 62 ″ is provided at the upper end portion of the side wall of the buffer chamber 60 ″, even when the water supplied at the time of flushing enters the support 3 ″ from below, It is difficult to get over the side wall and reach the air circulation hole 62 '', and as a result, the air circulation hole 62 '' is prevented from entering the buffer chamber 60 ''. Therefore, it is possible to prevent the drug solution stored in the buffer chamber 60 ″ from being diluted.

  Note that, similarly to the surrounding wall 43 of the first embodiment, a cover member that covers the upper part of the air circulation hole 62 '' may be provided on the cover member 4 ''. As a result, water that enters the support 3 ″ from above through the lower end surface of the chemical solution 2 ″ from the fitting portion T between the chemical solution container 2 ″ and the support 3 ″ passes through the air circulation hole 62 ′. It can be surely prevented from reaching '.

DESCRIPTION OF SYMBOLS 1 Chemical solution supply apparatus 2 Chemical solution container 4 Cover member 6 Adjustment mechanism 32 1st surrounding wall 41 2nd surrounding wall 60 Buffer chamber 61 Communication hole 63 Through-hole 64 Slit 62 Air distribution hole 21 Discharge port 42 Discharge member

Claims (6)

A chemical solution container containing a chemical solution and having a chemical solution outlet, and a support to which the chemical solution container is detachably attached,
The support is connected to the discharge port, and a discharge member that discharges the chemical solution in the chemical solution container to the outside,
An adjustment mechanism for adjusting the amount of the chemical liquid discharged from the chemical liquid container to the outside,
The adjustment mechanism is surrounded by a bottom wall, an upper wall and a side wall, partitioned from the discharge member, and a buffer chamber having a space for storing a chemical solution;
At least one communication hole into which the chemical liquid discharged from the chemical liquid container to the outside can be introduced into the buffer chamber;
And at least one air circulation hole through which air can flow into the buffer chamber,
The said air circulation hole is a chemical | medical solution supply apparatus provided in the said side wall of the said buffer chamber.   The chemical solution supply device according to claim 1, wherein the air circulation hole is provided at an upper end portion of the side wall. The buffer chamber is formed by a lower member provided on the support, and a cover member fitted to the lower member from above,
The lower member includes a bottom wall and a first peripheral wall standing on the bottom wall, and the cover member includes a top wall and a second peripheral wall depending from the top wall, and the second member The side wall is formed by the first and second peripheral walls by fitting the peripheral wall to the inside or the outside of the first peripheral wall,
The chemical solution supply device according to claim 1 or 2, wherein the air circulation hole is formed so as to penetrate the first and second peripheral walls. The second peripheral wall is fitted inside the first peripheral wall;
The air circulation hole includes a vertically extending slit or through hole provided in the second peripheral wall, and a slit or through hole provided in a position corresponding to the slit or the through hole in the first peripheral wall. The chemical | medical solution supply apparatus of Claim 3 formed by these.   The chemical | medical solution supply apparatus in any one of Claims 1-4 further equipped with the collar member which covers the upper direction of the said air circulation hole. The support has an outer shape in which the length in the first direction is longer than the length in the second direction orthogonal to the length in a plan view.
The chemical solution supply device according to claim 1, wherein the air circulation hole is provided at a position facing the first direction.