JP4938614B2 - Cleaning container - Google Patents

Description

  The present invention relates to a cleaning container in which a lid on which a dispenser head can be attached and detached is attached to a pressurized container containing a cleaning liquid, and the cleaning can be safely removed even when high-pressure gas remains in the pressurized container. It relates to containers for use.

  The dispenser head has a mechanism that moves the plunger (probe) up and down by raising and lowering the lever to open and close the beer delivery path and the gas pressure introduction path at the same time. The amount by which the liquid level in the barrel is pushed down by the introduced gas pressure. Can be delivered (see Patent Document 1, etc.). And while a general dispenser head allows a beverage to be delivered by setting the lever to a lowered position, each path is closed and the delivery is stopped at the raised position, but this dispenser head can be used only for delivering a beverage. It can also be used for the delivery of cleaning liquids. For example, at the restaurant, after the business ends, the dispenser head is changed from a beer barrel to a cleaning container containing cleaning liquid (usually water), and the beer dispenser is cleaned daily. is doing.

  This cleaning container is usually provided with a lid to which the dispenser head can be attached and detached, and when replacing the dispenser head, the dispenser head is attached to the attachment / detachment opening of the lid.

  Then, after replacing the dispenser head with the cleaning container and ending the cleaning operation, when replacing the dispenser head with the beer barrel again, first, the operation of closing the carbon dioxide gas main stopper is required with the lever of the dispenser head raised. It is. However, at this stage, since the high-pressure gas still remains in the cleaning container, if the dispenser head is removed as it is, the cleaning liquid in the cleaning container is ejected violently due to the residual pressure. There is a risk of causing an accident such as a head blowing away. Accordingly, it is necessary to release the residual pressure in the cleaning container after the above-described closing operation of the main stopper. Conventionally, however, the lever of the dispenser head is again set to the lowered position (liquid delivery position) or the lid is normally used. When a closed safety valve (relief valve) was separately provided, the residual pressure in the cleaning container was released by opening the safety valve.

JP 2002-80092 A

  However, when removing the dispenser head after the cleaning operation, the operator may forget the above-described residual pressure extraction operation, and the accidental accident cannot be completely avoided, so further safety measures have been desired. .

  The present invention has been made in view of the above-described problems, and an object of the present invention is to disclose a cleaning container that can safely remove a lid from a pressurized container even if the residual pressure extraction operation is forgotten. That is.

  In order to achieve the above-described object, in the present invention, a pressure vessel having a cylindrical mouth projecting, and an upper body on which a desorption port for a dispenser head is formed, the mouth of the pressure vessel is crowned and attached. It is composed of a lid integrally provided with a cap-like lower body that can be turned around, and is provided on the outer periphery of the mouth portion, and has two or more inclined cams that form a lower surface that gradually descends in the tightening direction of the lid. An engagement flange provided in the space, a claw provided on the inner periphery of the side wall of the lower body, passing vertically through the gap, and slidably engaged with the engagement flange from below; A tapered diameter-reduced step portion formed in the periphery; a hollow sleeve provided in communication with the attachment / detachment port in the lid; and capable of entering the mouth portion; provided in the hollow sleeve; Packing ring with a close outer diameter that can be fitted into a reduced diameter step Becomes, the packing ring is a pawl used means that disengaged fitted into the diameter-reduced step portion separable therefrom the mouth portion to the extent that it engages with the engaging flange.

  According to this means, the cap-shaped lower body of the lid is put on the mouth of the pressurized container, so that the claw on the inner periphery of the lower body passes through the gap and goes around the lower side of the engagement flange. By rotating in the turning direction, the claw engages while sliding the engagement flange, and if the lid is rotated in the reverse direction, the claw follows the reverse route and becomes unengaged. The lid can be removably attached to the mouth of the pressurized container.

  In addition, when the claw slides in the circumferential direction of the engaging flange, the inclined cam functions as a rotation-vertical movement conversion cam, and thus the rotation of the lid is converted into the vertical movement of the lid. As the lid moves up and down, the hollow sleeve provided integrally therewith also moves up and down and enters the mouth of the pressurized container.

  Further, since the hollow sleeve is provided with a packing ring that can be fitted into the reduced diameter step portion of the mouth portion, if the lid is rotated in a certain amount tightening direction, the packing ring is fitted into the reduced diameter step portion, The hollow sleeve can be connected to the mouth in a watertight and airtight manner. On the other hand, when the lid is rotated in the opposite direction, the hollow sleeve is raised, the packing ring is released from the reduced diameter step portion, and the seal between them is divided at a certain time. By this division, the residual gas in the pressurized container is released to the outside, and the residual pressure is released. In the present invention, the claw engages with the engagement flange even when the residual pressure is released because the claw engages with the engagement flange so that the claw can be brought into and out of contact with the reduced diameter stepped portion. , The lid will not blow off when gas is released.

  Furthermore, since the diameter-reducing step portion has a tapered shape that decreases in diameter toward the inside of the container, the degree of adhesion of the packing ring gradually increases or decreases. Therefore, the rotational torque of the lid can be reduced, and the detachment operation can be performed smoothly.

  The engaging flange can be entirely composed of an inclined cam, but a horizontal cam is provided continuously at the end of the inclined cam, and the packing ring is provided at the mouth as long as the pawl engages with the horizontal cam. Insertion may be possible. According to this means, when the lid is removed, the degree of contact between the packing ring and the reduced diameter step portion is reduced at the stage where the engagement of the claw has shifted from the horizontal cam to the inclined cam, and there is a period during which the hook is engaged with the inclined cam. At some point, the seal is broken.

  Furthermore, the engagement flange is provided with a stopper at the end thereof that can be used to restrict the tightening of the lid so that the pawl can come into contact with the engagement flange. Since it cannot be rotated as described above, the operator can recognize the completion of the mounting operation while preventing excessive tightening.

  On the other hand, the packing ring may have a shape that can be fitted into the reduced-diameter step portion of the mouth portion, but preferably has an inverted U-shaped cross section. Because it is easier to deform than a solid packing ring, it is easy to fit into the reduced diameter step when the lid is installed, and during cleaning, the internal pressure acts on the recess on the bottom surface to push the packing ring outward, thus reducing the compression. This is because the degree of adhesion with the diameter step portion is increased and high sealing performance is realized.

  Further, in the present invention, in order to regulate the removal of the lid itself, the plunger for preventing reverse rotation is elastically urged on the lid so that the tip can slide on the engagement flange from above, and the tip can protrude into the gap. Means including a locking mechanism as described above is used. According to this means, the plunger rotates together with the lid, and when the lid is completely attached, the tip projects into the gap of the engagement flange, so that the tip is the end of the engagement flange (the end of the inclined cam, the end of the horizontal cam and the end of the horizontal cam). In this state, the lid cannot be rotated in the removal direction. However, if the plunger is raised against the elastic bias, the abutment is released, so that the lid can be removed.

  In the configuration employing this lock mechanism, in order to smoothly remove the lid, a lock release pin is provided in the horizontal direction on the side of the plunger, and the peripheral wall of the cylindrical rotary knob that accommodates the plunger in a vertically movable manner It is preferable to form a cam groove in which the release pin slides so that the plunger can escape from the gap against elastic bias.

  Furthermore, when the tip of the plunger has escaped from the gap, the rear end of the plunger can protrude upward from the rotary knob, so that the operator can check whether the lid is completely attached or not, and the lock is released. It can be recognized whether or not it has been done. In order to make this recognition more complete, it is preferable to color the rear end protrusion so as to be distinguishable from other parts.

  As described above, according to the present invention, the mouth portion of the pressurized container can be sealed or opened by the packing ring in accordance with the amount of rotation of the lid. Even if it is going to be removed, the internal residual pressure is released, so that the accidental accident of the lid can be avoided. In addition, since it is configured to open and close the lid by the engaging flange including the inclined cam and the cam function of the claw, it is more advantageous in molding than engraving screws, and the lid can be detached with a small amount of rotation. Replacement work is easy.

  Further, since the packing ring having an inverted U-shaped cross section is adopted, it is easy to fit into the mouth of the pressurized container, and after the fitting, the sealing performance is enhanced by the internal pressure of the pressurized container.

  Further, since the reverse rotation of the lid is regulated by the lock mechanism, the lid cannot be removed carelessly, and the operator can be alerted to the operation of extracting the residual pressure or closing the main plug. Further, the unlocking can be easily performed with the rotary knob, and the unlocked state can be confirmed by the rear end of the plunger projecting from the rotary knob, so that the safety is further improved.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a lid 10 and a pressurized container 20 according to an embodiment of the present invention, and FIG. 2 is a perspective view of the lid 10 when viewed from the back side. FIG. 3 is an exploded sectional view of the lid 10 and the pressurized container 20.

  In these drawings, first, a lid 10 is formed with an attachment / detachment port 2 for a dispenser head (not shown) on the upper surface of the upper body 1, and a cap-shaped lower body 3 is integrally provided below the upper body 1. It has been. A long hole 3b is formed in the side wall 3a of the lower body 3, and as shown in FIG. 2, the claws 4 are formed at equal intervals at the back end thereof, that is, at three locations on the inner periphery of the side wall 3a. The nail | claw 4 is inward and the upper surface is comprised by the horizontal surface 4b following the inclined surface 4a which inclines upward gradually in the tightening direction of the lid | cover 10. As shown in FIG.

  Further, as shown in FIGS. 2 and 3, a hollow sleeve 5 communicating with the attachment / detachment port 2 is provided in the vertical direction inside the lid 10. Further, a packing ring 6 having an inverted U-shaped cross section is attached to the outer periphery of the hollow sleeve 5.

  In FIG. 1, 7 is a known safety valve that can be opened by a button operation, and 8 is a lock mechanism provided on the lower body 3. The lock mechanism 8 will be described in detail later.

  On the other hand, the pressurized container 20 constitutes the container body of the cleaning container, and has an outer diameter that allows the lower body 3 of the lid 10 to be crowned on the upper surface of the main body 21 that stores a cleaning liquid such as water. A cylindrical mouth portion 22 having an inner diameter into which the hollow sleeve 5 can enter is projected. Further, an engaging flange 23 that can engage with the claw 4 of the lid 10 protrudes from the outer periphery of the mouth portion 22. The engaging flange 23 includes an inclined cam 24 whose lower surface is gradually inclined downward in the tightening direction of the lid 10, and a horizontal cam 25 provided continuously with the inclined cam 23. Further, a stopper 26 is formed at the end of the engagement flange 23. In this embodiment, three engagement flanges 23 are provided at equal intervals with gaps 27 corresponding to the claws 4. Here, it is sufficient to form the stopper 26 on any one of the engagement flanges 23, but in this embodiment, the stoppers 26 are provided on all the three engagement flanges 23.

  On the other hand, on the inner periphery of the opening of the mouth portion 22, as shown in FIG. 3, a tapered diameter-reducing step portion 28 that is reduced in diameter toward the inside of the container is formed. Note that the upper end side of the reduced diameter step portion 28 is a straight tubular enlarged portion 29 extending to the same diameter. The packing ring 6 of the lid 10 has a smaller diameter than the straight tubular enlarged diameter portion 29, and has an outer diameter that can be fitted into the reduced diameter step portion 28 in a watertight and airtight manner.

  FIG. 4 shows a procedure for detaching the lid 10, and the lid 10 is attached to the pressurized container 20 in the order of (a) → (b) → (c), while the lid 10 is stepped in the reverse order. Is removed from the pressurized container 20. That is, in order to attach the lid 10 to the pressurized container 20, first, the claw 4 is matched with the gap 27 of the pressurized container 20 (a). At this time, the claw 4 is inside the lid 10 and its position cannot be confirmed from the outside. However, in this embodiment, the long hole 3b is provided at a position corresponding to the claw 4 of the lower trunk side wall 3a. The position of the claw 4 can be recognized by the hole 3b. However, the formation of the long hole 3b is optional.

  If the claw 4 matches the gap 26, the lid 10 is dropped into the pressurized container 20 as it is. By this dropping, the claw 4 passes through the gap 26 and is positioned on the lower surface side of the engagement flange 23. In this state, the claw 4 starts to engage with the inclined cam 24 of the engagement flange 23 by turning and tightening the lid 10 (b). At this stage, the packing ring 6 is located in the enlarged diameter portion 29 of the mouth portion 22, and a gap is formed between them.

  When the lid 10 is further turned and tightened from the state of (b), the claw 4 slides on the inclined cam 24, and the lid 10 is pulled down by the cam coupling of both. The hollow sleeve 5 is also lowered in conjunction with this lowering. When the cover 10 is further rotated, the claw 4 slides on the horizontal cam 25, and finally the rotation of the cover 10 is restricted at the position where the padding 6 comes into contact with the stopper 25, and the mounting is completed (c) reference). Then, at the time of completion of the mounting, that is, in a range where the claw 4 is engaged with the horizontal cam 25, the hollow sleeve 5 enters the mouth portion 22 and the packing ring 6 provided on the outer periphery thereof is deformed slightly inward. The diameter-reducing step portion 28 of the mouth portion 22 is elastically fitted and adhered, and the mouth portion 22 and the hollow sleeve 5 are connected in a watertight and airtight manner.

  In this state (c), since the packing ring 6 has an inverted U-shaped cross section, it is easier to deform than a solid one. Therefore, since it fits easily in the reduced diameter step part 28, the rotational torque concerning attachment / detachment of the lid | cover 10 can be reduced. At the same time, the internal pressure during cleaning acts on the concave portion of the lower surface of the packing ring 6 and the packing ring 6 is pushed outward. Therefore, the degree of adhesion of the reduced diameter step portion 28 is increased and high sealing performance is maintained.

  On the other hand, if the lid 10 is rotated in the reverse direction from the state (c), the movement is completely opposite to the above, but the diameter-reduced step portion 28 of the mouth portion 22 has a shape that expands in the direction in which the packing ring 6 is removed. Therefore, when the claw 4 moves from the horizontal cam 25 to the inclined cam 24, the degree of adhesion between the packing ring 6 and the reduced diameter step portion 28 gradually decreases. If the degree of adhesion between the two drops to such an extent that the seal is broken, the gas in the pressurized container is released to the outside through the gap, and the residual pressure is released. However, at this time, since the claw 4 is still engaged with the inclined cam 24, the lid 10 does not blow off due to gas discharge, and the lid 10 can be safely operated even when a high residual pressure is acting. The pressure vessel 20 can be removed.

  Next, the lock mechanism 8 will be described. As shown in FIG. 1, the lock mechanism 8 is attached to the upper surface of the lower body 3 of the lid 10, and the tip of the plunger 8 a is exposed inside the lid 10 as shown in FIG. 2. The plunger 8 a is elastically biased toward the engagement flange 23. Accordingly, when the lid 10 covers the pressurized container 20 and starts to be tightened, the tip slides on the engagement flange 23 in a state of being retracted by a predetermined length against the elastic bias. When the fully tightened mounting is completed, the tip protrudes elastically into the gap 26 as schematically shown in FIG. And since the said protrusion front-end | tip will contact | abut with the terminal end of the engagement flange 23 (lock state), the reverse rotation of the lid | cover 10 after completion of mounting | wearing is prevented.

  Further, in this embodiment, in order to facilitate unlocking, as shown in FIG. 1, a release pin 8b is provided horizontally from the side of the plunger 8a, and the plunger 8a is provided with a cylindrical rotary knob. A cam groove 8d in which the release pin 8b can slide is formed on the peripheral wall of the rotary knob 8c. As shown in FIG. 6, the cam groove 8d is composed of an inclined portion that is inclined upward based on the locked state, and a horizontal portion that is continuous therewith. Accordingly, by rotating the rotary knob 8c in the direction of the arrow shown in the drawing, the release pin 8b slides so as to rise up the inclined portion. Therefore, the plunger 8a gradually rises against the elastic bias, and the release pin 8b. The tip of the plunger 8 a escapes from the gap 26 of the engagement flange 23 when the angle reaches the horizontal portion. In other words, this embodiment has a configuration in which the rotational movement of the rotary knob 8c can be converted into the vertical movement of the plunger 8a by the cam coupling of the release pin 8b and the cam groove 8d.

  Furthermore, in this embodiment, the rear end of the plunger 8a protrudes from the upper surface of the rotary knob 8c in a state where the tip of the plunger 8a has escaped from the gap 26, that is, in a unlocked state. Therefore, the operator can recognize that the unlocked state, that is, the state where the lid 10 can be reversed, by visually observing the protruding rear end. In order to further improve the visibility, the protruding rear end is colored in a color that can be distinguished from other parts.

  If the release pin 8b of the plunger 8a protrudes from the cam groove 8d, the release pin 8b can be manually unlocked manually, but it is preferable not to protrude from the cam groove 8d. Even though the lock can be released by rotating the rotary knob 8c, if the release pin 8b is protruded so as to be manually operable, the protruding portion may come into contact with the operator's body or clothes and be damaged. Because.

The disassembled perspective view of the lid | cover and washing | cleaning container which concern on embodiment of this invention The perspective view which looked at the lid of the embodiment from the back side Exploded sectional view of lid and cleaning container according to the embodiment Explanatory drawing which showed the mounting | wearing procedure of the cover of the embodiment Sectional drawing which showed the outline of the locking mechanism of the embodiment Explanatory drawing showing the operation of the locking mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lid 20 Cleaning container 1 Upper trunk | drum 2 Desorption port 3 Lower trunk | drum 4 Claw 5 Hollow sleeve 6 Packing ring 8 Locking mechanism 22 Mouth part 23 Engagement flange 24 Inclination cam 25 Horizontal cam 26 Stopper 27 Gap 28 Reduction diameter step part

Claims (7)

Integrates a pressurized container with a cylindrical mouth projecting and a cap-shaped lower body that can be detachably attached by covering the mouth of the pressurized container with an upper body having a desorption head for a dispenser head An engagement flange provided on the outer periphery of the mouth portion and provided with two or more inclined cams having a lower surface gradually inclined downward in the tightening direction of the lid, and the lower body A claw that is provided on the inner periphery of the side wall, passes up and down the gap, and slidably engages with the engagement flange from below, and a tapered reduced diameter step formed on the inner periphery of the mouth A hollow sleeve provided in communication with the attachment / detachment port in the lid and capable of entering the mouth portion, and an outer contact provided in the hollow sleeve and capable of being fitted into the reduced diameter step portion of the mouth portion. A packing ring having a diameter. Washing containers, characterized in that the extent of engagement flange engaging disengaged fitted into the diameter-reduced step portion separable therefrom the mouth. The cleaning flange according to claim 1, wherein the engagement flange is provided with a horizontal cam continuously at the end of the inclined cam, and the packing ring can be fitted into the mouth in a range where the claw engages with the horizontal cam. 3. The mounting structure for a lid and a cleaning container according to claim 1, wherein the engaging flange is provided with a stopper at the end of which the claw comes into contact so as to restrict the tightening of the lid. The cleaning container according to claim 1, 2, or 3, wherein the packing ring has an inverted U-shaped cross section. The lid includes a lock mechanism configured to elastically urge the tip of the reverse rotation-preventing plunger so that the tip can slide on the engagement flange from above, and to project the tip into the gap. A cleaning container according to claim 1. The lock mechanism is provided with a lock release pin in the horizontal direction on the side of the plunger, and the plunger can escape from the gap against the elastic wall against the peripheral wall of a cylindrical rotary knob that accommodates the plunger so that it can move up and down. 6. A cleaning container according to claim 5, wherein a cam groove in which the release pin slides is formed. The cleaning container according to claim 6, wherein the plunger has a rear end that can protrude upward from the rotary knob in a state where the front end has escaped from the gap.

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