[0056] figure 1 A water dispenser with a key according to an embodiment of the present invention is shown in FIG. The water dispenser has: a housing 1, which is placed on the floor surface F; a cold water tank 2, which is housed inside the housing 1, and a cold water output path 3, which is used to transfer low-temperature drinking water in the cold water tank 2 to the housing The external output of the body 1; the cold water output valve 4, which opens and closes the cold water output path 3; the hot water tank 5, which is housed in the housing 1; the hot water output path 6, which is used to store the hot water tank 5 The high-temperature drinking water is output to the outside of the housing 1; and the hot water output valve 7, which opens and closes the hot water output path 6.
[0057] The housing 1 has a cylindrical portion 10 extending in the vertical direction, a top plate 11 configured to close the upper end of the cylindrical portion 10 and a bottom plate 12 configured to close the lower end of the cylindrical portion 10. The cylindrical portion 10 is configured to include a pair of left and right side panels 13; a front panel 14 which connects the front edges of the side panels 13 to each other; and a rear panel 15 which connects the rear edges of the side panels 13 to each other.
[0058] The replaceable raw water container 16 is detachably attached to the top plate 11 of the casing 1. The raw water container 16 is placed on the top plate 11 with the water outlet 17 facing downward. The capacity of the raw water tank 16 is about 10 liters to 20 liters in a full water state. The raw water container 16 is formed to be flexible so as to shrink as the amount of remaining water inside decreases. The top plate 11 is provided with a raw water introduction pipe 18 that introduces drinking water from the raw water container 16 to the cold water tank 2.
[0059] One end of the raw water introduction pipe 18 is connected to the raw water container 16 in a removable manner, and the other end of the raw water introduction pipe 18 is fixedly connected to the cold water tank 2. A float valve 19 that opens and closes according to the water level in the cold water tank 2 is provided at the end of the raw water introduction pipe 18 on the cold water tank 2 side. As the raw water tank 16, when a structure formed to have rigidity without deformation even if the amount of remaining water inside is reduced, the float valve 19 is not required. In this case, the water level in the cold water tank 2 reaches the same height as the end of the raw water introduction pipe 18 on the cold water tank 2 side. A decorative cover 20 covering the raw water tank 16 is attached to the upper part of the housing 1.
[0060] The cold water tank 2 is divided into two upper and lower floors to contain air and drinking water. The cold water tank 2 is equipped with a cooling device 21 that cools the drinking water contained in the cold water tank 2. In addition, a baffle 22 that partitions the inside of the cold water tank 2 in the vertical direction is provided in the cold water tank 2. The cooling device 21 keeps the drinking water below the baffle 22 in the cold water tank 2 at a low temperature (about 5°C). The capacity of the drinking water in the cold water tank 2 is smaller than the capacity of the raw water container 16, and is about 2 to 4 liters.
[0061] The cold water output path 3 connects the cold water tank 2 with the cold water outlet 23 that opens on the front surface side of the housing 1 (refer to figure 2 ) Are connected. A cold water output valve 4 is provided at the end of the cold water output path 3 on the side of the cold water outlet 23. If the cold water output valve 4 is opened, the low-temperature drinking water in the cold water tank 2 is output from the cold water outlet 23 through the cold water output path 3.
[0062] The hot water tank 5 is arranged below the cold water tank 2. A heating device 24 for heating the drinking water contained in the hot water tank 5 is installed in the hot water tank 5. The heating device 24 keeps the drinking water in the hot water tank 5 at a high temperature (about 90°C). The capacity of the hot water tank 5 is about 1 to 2 liters.
[0063] The hot water output path 6 communicates between the hot water tank 5 and the hot water outlet 25 opened on the front surface side of the housing 1. A hot water output valve 7 is provided at the end of the hot water output path 6 on the side of the hot water outlet 25. When the hot water output valve 7 is opened, the hot drinking water in the hot water tank 5 is output from the hot water outlet 25 through the hot water output path 6.
[0064] The cold water tank 2 and the hot water tank 5 communicate with each other via a water tank connection pipe 26. When drinking water is output from the hot water tank 5, the same amount of drinking water as the drinking water flows into the hot water tank 5 from the cold water tank 2 through the tank connection pipe 26, and the hot water tank 5 is always kept in a full state.
[0065] In order to prevent children from accidentally operating and outputting hot water, the water dispenser is equipped with a normal child safety lock function. For the normal child safety lock function, the operation for opening the hot water output valve 7 is a combination of two or more operations (specifically, the operation of the child safety lock release button 47 described later, and the heating The combination of the operation of the water output operating lever 43), so that even if an infant performs an operation, the hot water output valve 7 will not simply be opened.
[0066] Moreover, in order to reliably prevent the output of hot water even if a child performs various operations on the water dispenser, in addition to the above-mentioned normal child safety lock function, the water dispenser is also provided with a complete device that uses a portable key component 30. Child safety lock function. The complete child safety lock function is the following function: only hold image 3 The key member 30 shown allows the hot water output valve 7 to be opened by external operations (operations of the child safety lock release button 47 and the hot water output operating lever 43), and cannot be opened without the key member 30 The hot water output valve 7 is opened by external operation.
[0067] Such as image 3 As shown, the key member 30 has a pinch portion 31, a pinch-side straight portion 32, a curved portion 33, and a front-end straight portion 34 in order from the pinch portion 31 toward the front end. The pinch portion 31 is a portion that is pinched with fingers when the user operates the key member 30. Both the gripping-side straight portion 32 and the tip-side straight portion 34 are formed to extend straight, and the end of the gripping-side straight portion 32 and the end of the tip-side straight portion 34 are connected by a bending portion 33.
[0068] Such as Figure 4 As shown, the hot water output valve 7 has: a spool 40, which is set to be able to close the valve closing position of the hot water output path 6 (refer to Figure 4 ), and the valve opening position that opens the hot water outlet 6 (refer to Picture 10 ) To move between; valve spring 41, which urges the valve core 40 from the open valve position to the closed valve position; valve stem 42, which is fixed to the valve core 40 in a way that it moves integrally with the valve core 40; and hot water The output operation lever 43 is operated by the user to output hot water. The hot water output operating rod 43 is connected to the valve rod 42 via the connecting pin 44, and by operating the hot water output operating rod 43, the valve body 40 can be moved from the valve closed position to the valve open position.
[0069] In addition, the hot water outlet valve 7 has: a valve opening prevention member 45, which is set to be able to be in a valve opening prevention position (refer to Figure 4 ) And allowable valve opening position (refer to Picture 10 ), where the valve-opening position prevents the valve core 40 from moving from the valve-closing position to the valve-opening position, and the valve-opening position allows the valve core 40 of the hot water outlet valve 7 to move from the valve-closing position to the valve-opening position. The position where the position moves; the lock spring 46, which urges the valve opening prevention member 45 from the valve opening position to the valve opening prevention position; the child safety lock release button 47, the user operates the child safety lock release button 47 to The valve opening prevention member 45 is moved from the valve opening prevention position to the valve opening permission position; and a switching member 48 that switches between a state where the child safety lock release button 47 can be operated and a state where it cannot be operated.
[0070] The valve stem 42 is arranged to extend in the up-down direction and is supported to be movable up and down. When the valve element 40 moves from the valve closed position to the valve open position, the valve stem 42 moves upward, and when the valve element 40 moves from the valve open position to the valve closed position, the valve stem 42 moves downward. On the outer periphery of the valve stem 42, a step 49 with a large diameter on the lower side is formed. The valve opening preventing member 45 is formed with a through hole 50 in the vertical direction through which the valve rod 42 is inserted. When the valve opening prevention component 45 is in the valve opening prevention position (refer to Figure 4 ), the edge of the through hole 50 of the valve opening member 45 is prevented from engaging with the step portion 49 of the outer circumference of the valve stem 42 to prevent the valve stem 42 from moving upward. When the valve opening member 45 is in the valve opening permission position (refer to Picture 10 ), the through hole 50 of the valve opening member 45 is prevented, and the step portion 49 of the outer circumference of the valve stem 42 is allowed to pass and the valve stem 42 is allowed to move upward.
[0071] Such as Figure 5 As shown, the child safety lock release button 47 has: a button body 53 that is slidably received in a button receiving hole 52 that is open on the front surface side of a fauce case 51; and a plunger 54 The button body 53 is formed integrally with the button body 53 in such a manner that it extends rearward. The plunger 54 is inserted through the through hole 55 in the axial direction formed by the switching member 48 and protrudes rearward in the axial direction from the switching member 48. The rear end of the plunger 54 is in contact with the valve opening prevention member 45. When the child safety lock release button 47 is pressed and moved axially rearward, the valve opening member 45 is pressed by the plunger 54 to move rearward integrally with the child safety lock release button 47.
[0072] Such as Image 6 As shown, the switching member 48 is a cylindrical member having an insertion port 60 into which the key member 30 is inserted on the outer periphery, and the switching member 48 is rotatably supported by the holding member 61. The switching member 48 can be in the normal child safety lock position in the circumferential direction (refer to Image 6 ), complete child safety lock position (refer to Figure 13 ) And the child safety lock release hold position (refer to Figure 17 ). A protrusion 62 is provided on the outer circumference of the plunger 54 of the child safety lock release button 47, and an axial groove 63 is formed on the inner circumference of the through hole 55 of the switching member 48. The protrusion 62 is slidable in the axial direction. The slot 63 is engaged. The engagement of the protrusion 62 and the groove 63 causes the child safety lock release button 47 and the switching member 48 to rotate integrally.
[0073] The holding member 61 is provided with a guide wall 64 that prevents the key member 30 from moving in the direction of detaching from the insertion port 60 when the switching member 48 is in the normal child safety lock position. The guide wall 64 is a wall provided to face the insertion port 60 of the outer periphery of the switching member 48 in the radial direction when the switching member 48 is in the normal child safety lock position. A passage 65 extending in an arc shape is formed between the guide wall 64 and the outer circumference of the switching member 48, and the curved portion 33 of the key member 30 can move in the circumferential direction in the passage 65.
[0074] In addition, such as Figure 13 As shown, a key passage 66 is formed in the cock housing 51 and the holding member 61. When the switching member 48 is in the full child safety lock position, the key passage 66 allows the key member 30 to move in the direction of detaching from the insertion port 60 . The key passage 66 linearly extends from the circumferential end of the arc-shaped passage 65 to the radially outer side.
[0075] Such as Figure 5 As shown, the front-end side straight portion 34 of the key member 30 extends radially inward from the insertion port 60 in a state where the key member 30 is inserted into the insertion port 60. The curved portion 33 extends from the radially outer end of the front end side straight portion 34 along the guide wall 64 and in the axial direction. In addition, a slit 67 is formed between the cock housing 51 and the holding member 61, and the slit 67 accommodates the pinch-side straight portion 32 to be movable in the circumferential direction between the facing surfaces in the axial direction.
[0076] Such as Figure 7 As shown, on the outer periphery of the button body 53 of the child safety lock release button 47, a plurality of radial protrusions 68 are provided at intervals in the circumferential direction. The holding member 61 is provided with a plurality of stopper protrusions 69 corresponding to the plurality of radial protrusions 68 of the button body 53 at intervals in the circumferential direction. When the switching part 48 is in the normal child safety lock position (refer to Image 6 ), such as Figure 7 As shown, when viewed in the axial direction, the positional relationship between the stop protrusion 69 and the radial protrusion 68 of the button body 53 is staggered to allow the child safety lock release button 47 to move axially rearward. However, when the switching member 48 is in Full child safety lock position (refer to Figure 13 ), such as Figure 14 As shown, when viewed in the axial direction, a positional relationship in which the stop protrusion 69 overlaps the radial protrusion 68 of the button body 53 is formed, so that the stop protrusion 69 blocks the radial protrusion 68 of the button body 53 from the rear in the axial direction, thereby preventing The child safety lock release button 47 moves to the rear of the shaft.
[0077] Such as Figure 5 As shown, a plurality of columnar protrusions 70 are formed on the axially opposed surface of the switching member 48 with respect to the valve opening preventing member 45 at intervals in the circumferential direction. In addition, a plurality of columnar protrusions 71 are also formed on the axially opposed surface of the valve opening prevention member 45 with respect to the switching member 48 at intervals in the circumferential direction.
[0078] Such as Figure 8 As shown, the side surface of the columnar protrusion 70 of the switching member 48 is opposed to the side surface of the columnar protrusion 71 of the valve opening prevention member 45 in the circumferential direction, and the side surface of the columnar protrusion 70 is in contact with the side surface of the columnar protrusion 71 to form the switching member 48 from Generally, the movement of the child safety lock position to the child safety lock release holding position is restricted. The valve opening preventing member 45 is formed in the support hole 72 of the holding member 61 (refer to Figure 5 The inner surface of) is supported in a state that can slide in the axial direction and stop rotating.
[0079] An example of the use of the keyed water dispenser will be described.
[0080]
[0081] Such as Picture 11 , Picture 12 , Figure 13 As shown, in the state where the key member 30 is operated to move the switching member 48 to the full child safety lock position, even if the child safety lock release button 47 is pressed, the child safety lock release button 47 cannot be moved. Remove the child safety lock.
[0082] That is, when the switching component 48 is in the full child safety lock position, such as Figure 14 As shown, since the radial protrusion 68 of the button body 53 of the child safety lock release button 47 overlaps the stop protrusion 69, even if the child safety lock release button 47 is pressed, the child safety lock cannot be released. Button 47 moves like Picture 12 As shown, the movement of the valve opening member 45 from the valve opening prevention position to the valve opening permission position is prevented. That is, by operating the child safety lock release button 47 and the hot water output operating lever 43, hot water cannot be output.
[0083] At this time, such as Figure 13 As shown, the position of the insertion port 60 and the position of the key passage 66 are aligned on a straight line, and therefore, the key member 30 can be withdrawn from the insertion port 60. Furthermore, by storing the extracted key member 30 in a place out of the reach of infants' hands, it is possible to extremely effectively prevent infants from scalding accidents. That is, as long as the key member 30 is not held, even if an infant performs various operations on the water dispenser, the child safety lock release button 47 cannot be operated to change the valve opening prevention member 45 from the valve opening prevention position to the valve opening permission position. By moving, it is possible to reliably prevent infants from outputting hot water.
[0084] Here, at Figure 13 In the illustrated state where the key member 30 is pulled out from the insertion port 60, even if an infant inserts a straight rod (not a rod of the key member 30) into the insertion port 60, the rod without the bent portion 33 will be in contact with the guide The wall 64 interferes, and therefore, the switching member 48 cannot be moved from the full child safety lock position to the normal child safety lock position. Therefore, it is possible to prevent an infant from using a straight stick (toothpicks, etc.) to release the complete child safety lock state, thereby ensuring high safety. On the other hand, since the key member 30 has the bent portion 33, even if the key member 30 moves in the circumferential direction while being inserted into the insertion port 60, it does not interfere with the guide wall 64.
[0085]
[0086] Operate the key member 30 inserted into the insertion port 60, thereby making the switching member 48 from the full child lock position (refer to Figure 13 ) To the normal child safety lock position (refer to Image 6 )mobile. In this state, the child safety lock release button 47 can be pressed and moved.
[0087] That is, as Image 6 As shown, when the switching member 48 is in the normal child safety lock position, such as Figure 7 As shown, the position of the radial protrusion 68 of the button body 53 of the child safety lock release button 47 is shifted from the position of the stop protrusion 69, and the restriction on the movement of the child safety lock release button 47 by the stop protrusion 69 is released, so By operating the child safety lock release button 47, the valve opening prevention member 45 is allowed to move from the valve opening prevention position to the valve opening permission position. In this state, by operating the hot water output operating lever 43 while pressing the child safety lock release button 47, hot water can be output.
[0088]
[0089] In the use environment (such as company conference room, etc.) that children will not enter, such as Figure 16 As shown, press the child safety lock release button 47, in this state, such as Figure 15 As shown, the key member 30 is operated to make the switch member 48 from the normal child safety lock position (refer to Image 6 ) Release the hold position to the child safety lock ( Figure 17 )mobile. Thus, as Figure 18 As shown, the front end surface of the columnar protrusion 70 of the switching member 48 and the front end surface of the columnar protrusion 71 of the valve opening prevention member 45 are formed in a state of butting in the axial direction, as Figure 16 As shown, it is formed to prevent the valve opening prevention member 45 from being maintained at the valve opening permission position. In this state, the operation of the child safety lock release button 47 when outputting hot water can be omitted, and the hot water output operation lever 43 can be output only by operating the hot water output operating lever 43 without operating the child safety lock release button 47.
[0090] Here, when the switching member 48 is moved from the normal child safety lock position (refer to Image 6 ) Release the hold position to the child safety lock ( Figure 17 ) When moving, if the operating force is not applied to the child safety lock release button 47, such as Figure 8 As shown, the circumferentially facing surfaces of the columnar protrusion 70 and the columnar protrusion 71 interfere, and therefore, the switching member 48 cannot be moved from the normal child safety lock position to the child safety lock release position. Therefore, it is possible to prevent an infant from moving the switching member 48 from the normal child safety lock position to the child safety lock release position, and the safety is high.
[0091] This keyed drinking water mechanism enables the key member 30 to be carried independently with respect to the housing 1. Therefore, the key member 30 can be stored in a place out of reach of infants. Moreover, as long as the key member 30 is not held, even if an infant performs various operations on the water dispenser, the child safety lock release button 47 cannot be operated to change the valve opening prevention member 45 from the valve opening prevention position to the valve opening permission position. Move so that hot water is not output. In this way, by storing the key member 30 in a place out of reach of an infant's hand, it is possible to extremely effectively prevent an infant's scald accident.
[0092] In addition, for the keyed water dispenser, such as Image 6 As shown, in a state where the switching member 48 is in the normal child safety lock position, the guide wall 64 restricts the movement of the key member 30 in the direction of detaching from the insertion port 60. That is, when the switching member 48 is in the normal child safety lock position, the key member 30 cannot be removed from the insertion port 60, such as Figure 13 As shown, the key member 30 can be withdrawn from the insertion port 60 only when the switching member 48 is in the full child safety lock position. Therefore, when the key member 30 is pulled out, the switching member 48 will definitely reach the full child safety lock position, which can reliably prevent the normal child safety lock state when the key member 30 is pulled out, thereby ensuring high safety.
[0093] The aforementioned normal child safety lock function and complete child safety lock function can be provided not only for the hot water output valve 7 but also for the cold water output valve 4. Here, in the case of adopting the same structure as the hot water output valve 7 for the cold water output valve 4, there is a danger that an infant will use the key member 30c of the cold water output valve 4 as the key member 30 of the hot water output valve 7 . In order to eliminate this danger, it is preferable to configure such that the key member 30c of the cold water output valve 4 cannot be used for the hot water output valve 7. As the key part 30c of this structure, for example, Figure 19 As shown, it is possible to adopt a structure having a bent portion 33c in which the radial thickness of the bent portion 33c is set to be larger than that of the bent portion 33 of the key member 30 of the hot water outlet valve 7. At this time, the radial inner width of the passage 65c through which the curved portion 33c of the key member 30c of the cold water outlet valve 4 passes is the same as the radial direction of the passage 65 through which the curved portion 33 of the key member 30 of the hot water outlet valve 7 passes. Set to be larger compared to the inside width of.
[0094] It should be understood that the embodiments disclosed this time are examples in all aspects and do not limit the present invention. The scope of the present invention is shown not by the above description but by the claims, and it is intended that the scope equivalent to the claims and all changes within the scope are also included in the present invention.
