JP2015085283A - Bubble generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bubble generation device having a configuration in which a detergent supply part connected to a supply passage of a chemical liquid hardly comes off from a body part.SOLUTION: A bubble generation device 4 includes: a body part 41 in which a water flow passage 56 is provided; and a chemical liquid supply part 6 for supplying a chemical liquid to the water flow passage 56. The chemical liquid supply part 6 has: a protrusive joint part 62 connected to a supply passage 33 to communicate with it; and a discharge part 65 for supplying the chemical liquid flowed in via the protrusive joint part 62 to the water flow passage 56. A holding part 7 is provided at the body part 41 for holding the protrusive joint part 62. By the protrusive joint part 62 being held by the holding part 7, the chemical liquid supply part 6 is installed at the body part 41.

Description

  The present invention relates to a bubble generator.

  Patent Document 1 discloses a conventional bubble generating device. The bubble generation device described in Patent Document 1 is a microbubble generation device configured to mix air into water flowing through a water flow path, and subdivide and discharge the mixed air. The bubbled water generated by the bubble generator is supplied to, for example, a toilet bowl or a bathtub, and removes dirt on the inner surface of the toilet bowl or bathtub.

  As shown in FIG. 5, the bubble generation device described in Patent Document 1 includes a drug supply unit for supplying a liquid chemical solution to the water flow path. The medicine supply unit includes a tube part 91 and a pipe part 92 to which a chemical solution supply path is connected. The tube portion 92 is inserted into the tube portion 91.

  A pipe portion 93 communicating with the chemical solution supply path is fixed to the pipe portion 92. The pipe portion 92 is provided with a mounting boss 94 separately from the pipe portion 93.

  On the other hand, the cylindrical portion 91 is provided with a locking hole 95 for locking the mounting boss 94. The tube portion 92 is configured to be mounted in the cylindrical portion 91 by the mounting boss 94 being locked in the locking hole 95.

JP 2008-138420 A

  By the way, when the bubble generating device generates bubbles in the water channel (when water is circulated through the water channel), a large water pressure is generated in the water channel. At this time, in the conventional bubble generating device, there is a small allowance between the mounting boss 94 and the locking hole 95, the mounting boss 94 and the locking hole 95 come off, and the tube portion 92 comes off from the tube portion 91. was there.

  Further, in the conventional bubble generating device, a hose or the like as a supply path is attached to the pipe portion 93. However, when force is applied to the hose or the like, the attachment boss 94 and the locking hole 95 are coupled with the action of the water pressure in the water channel. Tends to come off.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bubble generating device having a configuration in which a washing solution supply unit connected to a chemical solution supply path is unlikely to come off from a main body unit. is there.

  The bubble generating apparatus of the present invention is provided with an inlet, an outlet, and a flow channel that communicates the inlet and the outlet, and a main body in which a bubble generator for generating bubbles is formed in the flow channel And a chemical liquid supply unit that is attached to the main body part and supplies a chemical liquid to the flowing water channel, wherein the chemical liquid supply unit is connected to a supply path connected to a chemical liquid supply source. And a discharge part that supplies the chemical solution that has flowed in through the protruding joint part to the flow channel, and the main body part holds the protruding joint part. A portion is provided, and the chemical solution supply portion is attached to the main body portion by holding the protruding joint portion by the holding portion.

  Further, in this bubble generating device, the holding portion includes a first hole portion through which the projecting joint portion approaches the body portion, and the projecting joint portion passed through the first hole portion. A second hole portion that allows rotation in the circumferential direction around the discharge portion, and a restriction portion that restricts movement of the protruding joint portion passed through the second hole portion in a direction away from the main body portion. The holding portion restricts movement of the supply path in a state where the supply path is connected to the protruding joint portion passed through the second hole portion, and thereby the protruding joint portion. It is preferable to further include a retaining portion for preventing the material from coming out of the first hole.

  According to the bubble generating device of the present invention, the detergent supply section connected to the chemical solution supply path is unlikely to come off from the main body section.

(A) (b) is a perspective view of the bubble generator of this embodiment. It is a schematic sectional drawing of the toilet device of this embodiment. It is sectional drawing of the main-body part of the bubble generator of this embodiment. (A) (b) (c) (d) is explanatory drawing of the method of attaching the chemical | medical solution supply part of this embodiment. It is a disassembled perspective view of the bubble generator of a prior art example.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  The bubble generating device 4 according to the present embodiment is used by being incorporated in the washing water discharge device 3 built in the toilet device. As shown in FIG. 2, the toilet device includes a bowl portion 11, a trap device 2, and a washing water discharge device 3.

  The bowl portion 11 has a bowl shape opened upward. The bowl part 11 is comprised with the synthetic resin. At the lower end portion of the bowl portion 11, a drain tube portion 12 protruding rearward is provided. The protruding tip of the drain cylinder 12 opens toward the rear. The opening of the drain tube portion 12 communicates with the upper portion of the bowl portion 11. The trap device 2 is connected to the drain cylinder 12.

  The trap device 2 is a so-called turn trap type drain trap. The trap device 2 includes a trap cylinder 21 that is connected to the drain cylinder 12 and a drive unit 22 that drives the trap cylinder 21 to swing in the vertical direction.

  The trap cylinder 21 has flexibility and is configured to be elastically deformable. The trap cylinder 21 has a length in the front-rear direction, and both ends in the length direction are open. Further, the rear end portion of the trap cylinder 21 is connected to the drive unit 22. As a result, the trap cylinder 21 is repeatedly driven between a state in which the L-shaped trap structure rotated upward and a state in which the inverted L-shaped trap structure rotated downward is released. When the trap cylinder 21 is rotated downward (that is, when the trap structure is released), the trap cylinder 21 is connected to a drain port (not shown) provided on the floor.

  The trap device 2 normally forms a trap structure in which the trap cylinder 21 is L-shaped. When the cleaning water is discharged into the bowl portion 11 in this state, the cleaning water accumulates in the lower portion, the drain tube portion 12 and the trap tube 21 in the bowl portion 11, thereby forming sealed water. In this state, when the drive unit 22 is driven and the trap cylinder 21 is rotated downward, the trap structure is released, so that the cleaning water accumulated in the bowl portion 11 and the like is discharged to the drain outlet via the trap cylinder 21. Drained.

  The washing water discharge device 3 is built in the rear part of the toilet device. The cleaning water discharge device 3 generates cleaning water and discharges the cleaning water into the bowl portion 11, thereby removing dirt and the like attached to the inner surface of the bowl portion 11.

  The cleaning water discharge device 3 includes a chemical liquid tank 31 serving as a chemical liquid supply source and a bubble generating device 4. The chemical solution tank 31 stores a chemical solution (detergent) such as a detergent containing a surfactant, for example. The chemical liquid tank 31 is provided with a circulation path 32 through which the chemical liquid circulates. A supply path 33 connected to the bubble generating device 4 is branched into the circulation path 32. A chemical liquid supply pump 34 is provided in the circulation path 32. The chemical liquid supply pump 34 is configured so that a part of the chemical liquid flowing through the circulation path 32 can flow toward the supply path 33.

  In addition, although the supply path 33 is comprised by flexible piping, such as a tube and a hose, for example, it may be comprised by inflexible piping made from synthetic resin, metal, etc., There is no particular limitation.

  The bubble generating device 4 generates cleaning water mixed with bubbles. As shown in FIGS. 1A and 1B, the bubble generating device 4 is provided with an inflow port 43, an outflow port 55, and a chemical solution supply unit 6. The inflow port 43 is connected to a water source (for example, a water pipe). The outflow port 55 is opened along the inner surface of the bowl portion 11. The chemical liquid supply unit 6 is connected to a supply path 33 connected to the chemical liquid tank 31, and the flow path 56 (see FIG. 3) that connects the chemical liquid flowing through the supply path 33 to the inlet 43 and the outlet 55. To supply. Thereby, the bubble generating device 4 discharges the cleaning water containing the chemical liquid toward the inner surface of the bowl portion 11 through the outlet 55.

  As shown in FIG. 2, an electromagnetic valve 35 is connected between the bubble generating device 4 and the water source. Accordingly, the cleaning water discharge device 3 performs control so as to switch between discharging and stopping the cleaning water.

  The bubble generating device 4 includes a main body portion 41 and the above-described chemical solution supply portion 6 attached to the main body portion 41.

  As shown in FIG. 3, the main body part 41 includes an upstream pipe part 42, a midstream pipe part 45, and a downstream pipe part 54. The upstream pipe portion 42 is formed in a cylindrical shape. An inlet 43 is formed at the upstream end of the upstream pipe 42, and a nozzle 44 is formed at the downstream end of the upstream pipe 42. The inner diameter of the nozzle portion 44 is formed such that the diameter decreases toward the downstream side. Thereby, the flow rate of the water discharged from the nozzle part 44 becomes larger (faster) than the flow rate at the time of flowing into the inflow port 43. The nozzle portion 44 is inserted into and connected to the upstream side opening portion (insertion opening portion 46) of the midstream pipe portion 45.

  The midstream pipe portion 45 is formed in a cylindrical shape. The middle flow pipe portion 45 is formed with an insertion opening 46, a throttle channel portion 47, and a downstream pipe connection portion 53 in order from the upstream side.

  In the throttle channel portion 47, the first large diameter portion 48, the reduced diameter portion 49, and the second large diameter portion 50 are continuous, and the inner surface is formed in a venturi shape. The inner diameter of the reduced diameter portion 49 is smaller than the inner diameters of the first large diameter portion 48 and the second large diameter portion 50. Further, the reduced diameter portion 49 is provided with a chemical solution introduction path 51 that is connected in communication with the chemical solution supply unit 6. The chemical solution introduction path 51 communicates with the inside of a holding unit 7 described later provided in the main body 41.

  The insertion opening 46 is provided with an air introduction path 52 penetrating in and out. One of the air introduction paths 52 opens to the atmosphere, and the other opens to the inside of the midstream pipe portion 45. Further, the nozzle portion 44 is inserted into the insertion opening 46. In a state where the nozzle portion 44 is inserted into the insertion opening 46, the tip of the nozzle portion 44 is disposed upstream of the first large diameter portion 48.

  A downstream pipe portion 54 is connected to the downstream pipe connection portion 53. The downstream pipe portion 54 is formed in a cylindrical shape. An outlet 55 is provided at the downstream end of the downstream pipe portion 54.

  The main body 41 is configured such that the upstream pipe 42 is connected to the insertion opening 46 of the midstream pipe 45, the downstream pipe 54 is connected to the downstream pipe connection 53, and these are fixed to each other. . Thus, the main body 41 is provided with an inlet 43, an outlet 55, and a water channel 56 that connects the inlet 43 and the outlet 55. The flowing water channel 56 is formed with a bubble generating unit 57 that mixes bubbles into the water flowing through the flowing water channel 56. Specifically, the bubble generation unit 57 includes a nozzle unit 44, an air introduction channel 52, and a throttle channel unit 47.

  When water from the water source flows into the inflow port 43, water having a high flow velocity is discharged through the nozzle portion 44. Then, a large negative pressure is generated in the vicinity of the outer peripheral portion of the nozzle portion 44, whereby air flows from the air introduction path 52 into the main body portion 41. That is, the bubble generating device 4 introduces air using a so-called ejector effect.

  The water into which the air has been introduced reaches the throttle channel portion 47. This water flows in the order of the first large diameter portion 48, the reduced diameter portion 49, and the second large diameter portion 50. At this time, the chemical solution supplied from the chemical solution introduction path 51 is supplied. The chemical liquid flowing through the throttle channel 47 and the water mixed with the bubbles largely change in dynamic pressure due to the change in the inner diameter of the throttle channel 47, whereby the bubbles are sheared and subdivided into fine bubbles. It becomes the washing water of entering.

  In this way, in the cleaning water mixed with a chemical solution containing a surfactant, when a shearing force is applied to the mixed bubbles due to a pressure change, bubbles of a micrometer size (fine bubbles) with a bubble diameter of about 60 μm, for example, are generated. can do.

  Thereafter, the cleaning water containing bubbles is discharged along the inner surface of the bowl portion 11 through the outlet 55.

  As shown in FIG. 1, the chemical liquid supply unit 6 is attached to the main body 41. The chemical liquid supply unit 6 is connected to a supply path 33 connected to the chemical liquid tank 31, and supplies the chemical liquid to the flowing water path 56 inside the main body 41. As shown in FIG. 4A, the chemical solution supply unit 6 includes a supply unit main body 61 and a protruding joint 62.

  The supply part main body 61 is formed in the column shape. The supply section main body 61 is provided with a discharge section 65 (not shown) at the end on the main body section 41 side. The discharge part 65 communicates with the inside of the protruding joint part 62. The discharge unit 65 communicates with the chemical solution introduction path 51 when the chemical solution supply unit 6 is attached to the main body unit 41.

  The protruding joint portion 62 protrudes from the outer peripheral surface of the supply portion main body 61 in a direction perpendicular to the central axis of the supply portion main body 61. A supply path 33 (for example, a tube) is connected to the projecting joint portion 62. The projecting joint 62 is constituted by a straight tube. The tubular body has a projecting joint 62 formed at a first end, and a second end (an end opposite to the first end) is closed by a cap 64. The second end of the tubular body projects from the outer peripheral surface of the supply section main body 61 to the side opposite to the projecting direction of the projecting joint 62 (hereinafter, the second end of the tubular body is referred to as a second projecting section 63). ).

  As shown in FIG. 1, a holding portion 7 is provided in the main body portion 41 of such a bubble generating device 4. A chemical solution supply unit 6 is attached to the holding unit 7. The holding part 7 protrudes from the outer periphery of the midstream pipe part 45 toward the outer side in the radial direction. As shown in FIG. 3, the holding unit 7 includes a receiving unit 71 into which the lower end of the chemical solution supply unit 6 is inserted, and a fixing unit 73 for fixing the chemical solution supply unit 6 disposed in the receiving unit 71. ing.

  In the following, as shown in FIG. 3, the protruding direction of the holding portion 7 is defined as a first direction A, and the direction toward the opposite side of the first direction A is defined as a second direction B.

  The receiving portion 71 is formed in a bottomed cylindrical shape. The lower end portion of the chemical solution supply unit 6 is inserted into the receiving unit 71. Further, an end of the chemical solution introduction path 51 is opened on the bottom surface of the receiving portion 71. Thereby, when the chemical solution supply unit 6 is arranged in the receiving unit 71, the chemical solution supply unit 6 can rotate in the circumferential direction around the discharge unit 65 in a state where the discharge unit 65 communicates with the chemical solution introduction path 51.

  The chemical solution introduction path 51 is provided with a check valve 72 inserted from the receiving portion 71. The check valve 72 can prevent water flowing through the main body 41 from entering the chemical solution introduction path 51.

  As shown in FIG. 1, the fixing portion 73 extends from the end portion of the receiving portion 71 in the first direction A. The fixing part 73 is formed by a side wall 74 formed so as to surround the outside of the chemical liquid supply part 6. The fixing portion 73 includes a first hole 75, a second hole 76, a third hole 77, a restricting portion 78, and a retaining portion 81.

  The first hole portion 75 is configured by an opening end portion on the distal end side in the first direction A of the side wall 74, and opens toward the first direction A. The first hole 75 is formed in a shape that surrounds the periphery of the chemical solution supply unit 6 when viewed in the second direction B. Thereby, the chemical solution supply unit 6 can be inserted into the first hole 75 along the second direction B (that is, in a direction approaching the main body 41). When the chemical solution supply unit 6 is inserted into the first hole 75, the chemical solution supply unit 6 is disposed inside the receiving unit 71.

  The second hole 76 is provided to allow the chemical solution supply unit 6 disposed in the storage unit to rotate in the circumferential direction around the discharge unit 65. The second hole portion 76 is provided on the side wall 74 of the fixed portion 73. By providing the second hole portion 76, the protruding joint portion 62 does not interfere with the side wall 74 even if the chemical solution supply portion 6 is rotated in the circumferential direction.

  The third hole 77 is provided at a position facing the second hole 76. The third hole 77 is provided in order to avoid interference with the second protrusion 63 of the tubular body of the chemical solution supply unit 6. By providing the third hole 77, the second protrusion 63 does not interfere with the side wall 74 even if the chemical liquid supply unit 6 is rotated in the circumferential direction.

  The restricting portion 78 includes a first restricting portion 79 and a second restricting portion 80. The first restricting portion 79 restricts the protruding joint portion 62 passed through the second hole portion 76 from moving in the first direction A (that is, the direction away from the main body portion 41). The first restricting portion 79 is configured by the side wall 74 above the second hole 76. The second restricting portion 80 restricts the movement of the second projecting portion 63 passed through the third hole 77 in the first direction A. The second restricting portion 80 is configured by the side wall 74 above the third hole 77.

  The retaining portion 81 is provided to prevent the protruding joint portion 62 from coming out through the first hole 75. The retaining portion 81 is configured to restrict movement of the supply passage 33 in a state where the supply passage 33 is connected to the protruding joint portion 62. In the present embodiment, the retaining portion 81 is configured by a restriction wall 82 disposed adjacent to the second hole 76.

  The regulation wall 82 is provided at a location facing the tip of the protruding joint 62 in a state where the chemical solution supply unit 6 is inserted through the first hole 75. When the chemical liquid supply unit 6 rotates toward the second hole 76 and the supply path 33 is connected in this state, even if the chemical liquid supply part 6 rotates, the supply path 33 hits the regulation wall 82. At this time, the chemical solution supply unit 6 is maintained in a state in which the protruding joint portion 62 and the second protruding portion 63 overlap the side wall 74 of the fixing portion 73 when viewed in the second direction B. As a result, movement of the chemical solution supply unit 6 in the first direction A is restricted, and the chemical solution supply unit 6 is prevented from being detached from the holding unit 7.

  The chemical solution supply unit 6 is attached to the holding unit 7 as follows.

  As shown in FIGS. 4 (a) and 4 (b), the installer inserts the chemical solution supply unit 6 before attaching the supply path 33 into the first hole 75, and places the chemical solution supply unit 6 in the receiving unit 71. Deploy. Next, as shown in FIG. 4C, the installer rotates the protruding joint portion 62 of the chemical solution supply unit 6 disposed inside the receiving unit 71 toward the second hole 76 side. When the chemical solution supply unit 6 is rotated to the second hole 76 side, as shown in FIG. 4D, the projecting joint 62 hits the lower side of the first restricting unit 79 and the projecting joint 62 moves upward. To be regulated. Moreover, the 2nd protrusion part 63 hits the downward direction of the 2nd control part 80, and it is controlled that the 2nd protrusion part 63 moves upwards. Accordingly, the chemical solution supply unit 6 is attached to the holding unit 7 of the main body 41 (by so-called bayonet method).

  A protrusion 83 that restricts the rotation of the protruding joint 62 is provided on the inner periphery of the opening of the second hole 76 and the third hole 77. When the protruding joint portion 62 is rotated to a predetermined position, the protruding portion 83 gives a click feeling to the user when the protruding joint portion 62 gets over the protruding portion 83. Further, the protruding portion 83 restricts the protruding joint portion 62 from rotating to the first hole 75 side from this state.

  Thereafter, the installer connects the supply path 33 to the protruding joint 62. When the supply path 33 is connected to the projecting joint portion 62, even if the chemical solution supply section 6 rotates over the projection 83, the supply path 33 hits the restricting wall 82, thereby causing the projecting joint section 62 to Rotation to the lower part of the one hole part 75 is prevented.

  As described above, the bubble generating device 4 according to this embodiment includes the main body 41 and the chemical solution supply unit 6. The main body 41 is provided with an inflow port 43, an outflow port 55, and an inflow channel 56 that connects the inflow port 43 and the outflow port 55, and a bubble generation unit 57 for generating bubbles is provided in the flow channel 56. Is formed. The chemical solution supply unit 6 is attached to the main body 41 and supplies the chemical solution to the flowing water channel 56. The chemical liquid supply unit 6 includes a protruding joint portion 62 that is connected in communication with the supply path 33, and a discharge portion 65 that supplies the chemical liquid that has flowed in through the protruding joint portion 62 to the flowing water path 56. The supply path 33 is connected to a chemical solution supply source. The main body portion 41 is provided with a holding portion 7 for holding the protruding joint portion 62. The chemical solution supply unit 6 is attached to the main body 41 by holding the projecting joint 62 on the holding unit 7.

  For this reason, according to the bubble generating device 4 of the present embodiment, the chemical solution supply unit 6 is attached to the main body 41 using the protruding joint 62 having a length to which the supply path 33 is connected. Even if a large water pressure is applied to the inside of the main body 41, the chemical solution supply unit 6 is unlikely to come off the holding unit 7. Further, in the bubble generating device 4 of the present embodiment, the protruding joint portion 62 is held by the holding portion 7. For this reason, in the bubble generating device 4 of the present embodiment, even if the supply path 33 swings or moves and an external force is applied to the protruding joint portion 62, the protruding joint portion 62 is detached from the holding portion 7. Hateful.

  In addition, the holding unit 7 of the present embodiment includes a first hole 75, a second hole 76, and a restricting part 78. The first hole portion 75 is passed in the direction in which the protruding joint portion 62 approaches the main body portion 41. The second hole portion 76 allows the protruding joint portion 62 passed through the first hole portion 75 to rotate in the circumferential direction around the discharge portion 65. The restricting portion 78 restricts the protruding joint portion 62 passed through the second hole portion 76 from moving in a direction away from the main body portion 41. Further, the holding part 7 includes a retaining part 81. The retaining portion 81 restricts the movement of the supply passage 33 in a state where the supply passage 33 is connected to the protruding joint portion 62 that is passed through the second hole portion 76, whereby the protruding joint portion 62 is This prevents the hole 75 from coming off.

  For this reason, according to the bubble generating device 4 of the present embodiment, it is possible to prevent the chemical solution supply unit 6 from rotating and coming off the holding unit 7 simply by connecting the supply path 33 to the protruding joint 62. it can.

  Further, in the bubble generating device 4 of the present embodiment, not only the projecting joint portion 62 but also the second projecting portion 63 opposite to the projecting joint portion 62 is separated from the main body portion 41 by the regulating portion 78. It is restricted from moving. For this reason, the attachment state of the chemical solution supply unit 6 and the holding unit 7 can be further strengthened.

  The bubble generating device 4 of the present embodiment has a structure in which a chemical solution is introduced in the bubble generation unit 57 to generate fine bubbles. However, in the present invention, the chemical solution is mixed after the bubbles are generated, It may be one that produces a wash water.

DESCRIPTION OF SYMBOLS 3 Washing water discharge apparatus 31 Chemical liquid tank 32 Circulation path 33 Supply path 4 Bubble generator 41 Main body part 42 Upstream pipe part 43 Inlet 44 Nozzle part 45 Middle flow pipe part 46 Insertion opening part 47 Restriction flow path part 48 1st large diameter part 49 Reduced-diameter part 50 Second large-diameter part 51 Chemical liquid introduction path 52 Air introduction path 53 Downstream pipe connection part 54 Downstream pipe part 55 Outlet 56 Flow path 57 Bubble generation part 6 Chemical liquid supply part 61 Supply part main body 62 Projection joint part 63 second protrusion 64 cap 7 holding portion 71 receiving portion 72 check valve 73 fixing portion 74 side wall 75 first hole portion 76 second hole portion 77 third hole portion 78 restricting portion 79 first restricting portion 80 second restricting portion 81 Retaining part 82 Restricting wall 83 Protruding part

Claims (2)

An inflow port, an outflow port, and a flow channel that provides communication between the inflow port and the outflow port, and a main body portion in which a bubble generation unit for generating bubbles is formed in the flow channel;
A bubble generator comprising a chemical solution supply unit that is attached to the main body and supplies a chemical solution to the flow channel,
The chemical solution supply unit
A projecting joint connected in communication with a supply path connected to a chemical supply source;
A discharge portion that supplies the chemical solution that has flowed in through the protruding joint portion to the flow channel,
The main body portion is provided with a holding portion for holding the protruding joint portion, and the chemical supply portion is attached to the main body portion by holding the protruding joint portion on the holding portion. A bubble generating device characterized by comprising: The holding part is
A first hole portion through which the protruding joint portion is passed in a direction approaching the main body portion;
A second hole portion that allows the protruding joint portion passed through the first hole portion to rotate in the circumferential direction around the discharge portion;
A regulation part that regulates movement of the protruding joint part passed through the second hole part in a direction away from the main body part, and
This holding part
In a state where the supply path is connected to the protruding joint portion that is passed through the second hole portion, the movement of the supply path is restricted, whereby the protruding joint portion is pulled out from the first hole portion. The bubble generating device according to claim 1, further comprising a retaining portion for preventing the leakage.

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