CN108236373B

CN108236373B - Drinking machine with key

Info

Publication number: CN108236373B
Application number: CN201711314281.8A
Authority: CN
Inventors: 荒川真吾
Original assignee: Cosmolife Co ltd
Current assignee: Cosmolife Co ltd
Priority date: 2016-12-27
Filing date: 2017-12-12
Publication date: 2021-12-28
Anticipated expiration: 2037-12-12
Also published as: KR102460200B1; JP2018104037A; JP6815193B2; KR20180076333A; CN108236373A

Abstract

The invention provides a water dispenser which can effectively prevent scalding accidents of infants. Provided is a water dispenser with a key, comprising: a valve opening prevention member (45) that is provided so as to be movable between a valve opening allowing position and a valve opening prevention position; a child safety lock release button (47) which is operated by a user to move the valve opening prevention member (45); and a switching member (48) which moves the switching member (48) between a normal child safety lock position and a full child safety lock position by operating a key member (30) inserted into the insertion port (60).

Description

Drinking machine with key

Technical Field

The invention relates to a water dispenser with a key, which can effectively prevent scalding accidents of infants.

Background

In the past, water dispensers have been used mainly in offices, hospitals, and the like, but in recent years, because of increasing concerns about water safety and health, water dispensers have been increasingly popular also in ordinary households. The water dispenser generally has: a housing; a cold water tank accommodated in the housing; a cold water outlet path for outputting the low-temperature drinking water in the cold water tank to the outside of the housing; a cold water output valve that opens and closes the cold water output passage; and a cold water output operation unit that is operated by a user to open the cold water output valve, and that enables cold water to be used by operating the cold water output operation unit.

In addition, most of the water dispensers also have: a hot water tank housed inside the case; a hot water outlet path for outputting the high-temperature drinking water in the hot water tank to the outside of the housing; a hot water outlet valve for opening and closing the hot water outlet path; and a hot water output operation unit that is operated by a user to open the hot water output valve, and that enables hot water to be used by operating the hot water output operation unit.

However, in a water dispenser of a type capable of using hot water, a child safety lock function is provided in order to prevent an infant from inadvertently operating the water dispenser to output the hot water. The child safety lock function is a combination of 2 or more operations for outputting hot water from the water dispenser, and thus it is impossible to easily output hot water even when an infant performs an operation (for example, patent document 1).

However, even when the child safety lock function is provided, there is a possibility that an operation of outputting hot water is accidentally successful or that an infant sees and imitates an operation performed by an adult when outputting hot water during various operations performed by the infant, and therefore, there are problems as follows: the danger of scalding caused by the delivery of hot water by children cannot be completely eliminated.

That is, the more complicated the operation for delivering hot water, the more the child safety lock function can be strengthened, and the scald accident of the infant can be more effectively prevented, but on the other hand, the operation when the adult as a user delivers hot water becomes complicated, which is at the cost of sacrificing the convenience of the water dispenser. Therefore, there is a limit to the enhancement of the child safety lock function, and it is difficult to completely eliminate the risk of the child outputting hot water only by the child safety lock function.

Patent document

Patent document 1: japanese patent laid-open publication No. 2014-166862

Disclosure of Invention

The invention aims to provide a water dispenser which can effectively prevent scalding accidents of infants.

In order to solve the above problems, the inventors of the present application have proposed a water dispenser having the following configuration.

A keyed water dispenser having:

a housing;

a hot water tank disposed inside the case;

a hot water outlet path for outputting the high-temperature drinking water in the hot water tank to the outside of the housing;

a hot water output valve that opens and closes the hot water output passage;

a valve opening prevention member provided movably between a valve opening allowing position for allowing the valve body of the hot water delivery valve to move from a valve closed position to a valve opened position and a valve opening prevention position for preventing the valve body of the hot water delivery valve from moving from the valve closed position to the valve opened position;

a child safety lock release button that is operated by a user to move the open-prevention member from the open-prevention position to the open-allowable position;

a key member configured to be carried independently of the housing; and

and a switching member having an insertion opening into which the key member is inserted, the switching member being moved between a normal child-resistant lock position and a full child-resistant lock position by operating the key member inserted into the insertion opening, the normal child-resistant lock position allowing the valve opening prevention member to move from the valve opening prevention position to the valve opening allowing position, and the full child-resistant lock position preventing the valve opening prevention member from moving from the valve opening prevention position to the valve opening allowing position.

In this case, the key member is configured to be carried independently of the case, and therefore, the key member can be stored in a place inaccessible to the hand of the child. Further, even if the child performs various operations on the water dispenser without holding the key member, the child safety lock release button cannot be operated to move the valve opening prevention member from the valve opening prevention position to the valve opening permission position, and hot water is not discharged. In this way, the key member is stored in a place where the hand of the child cannot reach, and therefore, the scald accident of the child can be prevented extremely effectively.

Preferably, there is further provided: a key passage that allows movement of the key member in a direction of disengaging from the insertion port in a state where the switching member is in the full child safety lock position; and

a guide wall that prevents the key member from moving in a direction of disengaging from the insertion port in a state where the switching member is in the normal child-resistant lock position.

Thus, in the state where the switching member is in the normal child lock position, the movement of the key member in the direction of disengaging from the insertion port is restricted by the guide wall. That is, the key member cannot be removed from the insertion port when the switching member is in the normal child-proof position, and can be removed from the insertion port only when the switching member is in the full child-proof position. Therefore, when the key member is removed, the switching member surely reaches the full child safety lock position, and thus the state of the normal child safety lock can be reliably prevented from being changed when the key member is removed, and high safety can be ensured.

Preferably, the water dispenser further comprises the following structure.

The switching member is a cylindrical member having the insertion port at an outer periphery thereof,

the guide wall is a wall provided to be opposed to a part of the insertion port of the outer periphery of the switching member in a radial direction in a state where the switching member is in the normal child lock position,

the key member has: a straight portion extending radially inward from the insertion opening when the key member is inserted into the insertion opening; and a curved portion extending from a radially outer end of the straight portion along the guide wall and in an axial direction.

Thus, even if the child inserts a straight rod-shaped object (rod-shaped object that is not a key member) into the insertion port, the rod-shaped object having no bent portion interferes with the guide wall, and therefore, the switching member cannot be moved from the full child safety lock position to the normal child safety lock position. Therefore, it is possible to prevent the child from releasing the child safety lock completely by using a straight stick-shaped object (such as a toothpick), and high safety can be ensured. On the other hand, since the key member has the curved portion, it does not interfere with the guide wall.

Preferably, the switching member is also movable to a child safety lock releasing holding position that holds the valve opening prevention member in the valve opening allowing position.

Accordingly, in a use environment (for example, a conference room of a company) in which an infant does not enter, by moving the switching member to the child safety lock release holding position, the operation of the child safety lock release button when hot water is output can be omitted, and therefore, the convenience of the water dispenser is further improved.

In this case, it is preferable that: the switching member is movable from the normal child lock position to the child lock release holding position by operating the key member inserted into the insertion port in a state where an operating force is applied to the child lock release button, and the switching member is prevented from moving from the normal child lock position to the child lock release holding position in a state where the operating force is not applied to the child lock release button.

Thus, the switching member cannot be moved from the normal child lock release position to the child lock release slow-holding position unless the operating force is applied to the child lock release button. Therefore, the switching member can be prevented from being moved from the normal child safety lock position to the child safety lock release holding position by the child, and safety is high.

Effects of the invention

The water dispenser with a key of the present invention is configured such that the key member can be carried independently of the housing, and therefore, the key member can be stored in a place inaccessible to the hands of a child. Further, even if the child performs various operations on the water dispenser without holding the key member, the child safety lock release button cannot be operated to move the valve opening prevention member from the valve opening prevention position to the valve opening permission position, and hot water is not discharged. In this way, the key member is stored in a place where the hand of the child cannot reach, and therefore, the scald accident of the child can be prevented extremely effectively.

Drawings

Fig. 1 is a sectional view of a water dispenser with a key according to an embodiment of the present invention.

Fig. 2 is a view of the vicinity of the cold water outlet valve and the hot water outlet valve of the water dispenser shown in fig. 1, as viewed from the front surface side of the water dispenser.

Fig. 3 is an enlarged perspective view showing the key member in a state detached from the housing shown in fig. 1.

Fig. 4 is a sectional view taken along line IV-IV in fig. 2.

Fig. 5 is an enlarged sectional view showing a vicinity of the child safety lock release button in fig. 4 in an enlarged manner.

Fig. 6 is a sectional view taken along line VI-VI in fig. 5.

Fig. 7 is a sectional view taken along line VII-VII in fig. 5.

Fig. 8 is a sectional view taken along line VIII-VIII in fig. 5.

Fig. 9 is a view showing a state where the child safety lock release button shown in fig. 5 is pressed to raise the valve stem.

Fig. 10 is a sectional view showing the whole hot water outlet valve in the state shown in fig. 9.

Fig. 11 is a view of the hot water outlet valve shown in fig. 2 formed into a fully child-resistant locked state.

Fig. 12 is a sectional view taken along line XII-XII in fig. 11.

Fig. 13 is a sectional view taken along line XIII-XIII in fig. 12.

Fig. 14 is a sectional view taken along the line XIV-XIV in fig. 12.

Fig. 15 is a view showing the hot water outlet valve shown in fig. 2 in a child safety lock release holding state.

Fig. 16 is a sectional view taken along line XVI-XVI in fig. 15.

Fig. 17 is a sectional view taken along line XVII-XVII in fig. 16.

Fig. 18 is a sectional view taken along line XVIII-XVIII in fig. 16.

Fig. 19 is a sectional view of the cold water outlet valve shown in fig. 2.

Description of reference numerals:

1 … shell; 5 … hot water tank; 6 … hot water output path; 7 … hot water outlet valve; 30 … key component; 33 … curved portions; 34 … straight part at the front end side; a 40 … valve cartridge; 45 … preventing the valve opening member; 47 … child safety lock release button; a 48 … switching member; 60 … insertion opening; 64 … guide walls; 66 … key pathway.

Detailed Description

A keyed water dispenser of an embodiment of the present invention is shown in fig. 1. The water dispenser is provided with: a casing 1 placed on a floor surface F; a cold water tank 2 housed inside the casing 1; a cold water outlet passage 3 for outputting the low-temperature drinking water in the cold water tank 2 to the outside of the housing 1; a cold water outlet valve 4 that opens and closes the cold water outlet passage 3; a hot water tank 5 housed inside the casing 1; a hot water outlet passage 6 for outputting the high-temperature drinking water in the hot water tank 5 to the outside of the housing 1; and a hot water outlet valve 7 that opens and closes the hot water outlet passage 6.

The housing 1 has: a cylindrical portion 10 extending in the vertical direction; a top plate 11 provided to close an upper end of the cylinder 10; and a bottom plate 12 provided to close the lower end of the cylindrical portion 10. The tube portion 10 includes: a pair of left and right side panels 13; a front panel 14 connecting front edges of the side panels 13 to each other; and a rear panel 15 which joins the rear edges of the side panels 13 to each other.

The replaceable raw water tank 16 is detachably attached to the top plate 11 of the casing 1. The raw water tank 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 about 20 liters in a full water state. The raw water tank 16 is formed to have flexibility so as to contract as the amount of residual water inside decreases. A raw water introduction pipe 18 for introducing the drinking water from the raw water tank 16 into the cold water tank 2 is provided in the top plate 11.

One end of the raw water introduction pipe 18 is detachably connected to the raw water tank 16, 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 in accordance with 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. When the raw water tank 16 is formed to have a rigid structure that does not deform even if the amount of residual water inside is reduced, the float valve 19 is not necessary. In this case, the water level in the cold water tank 2 is at 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 an upper portion of the housing 1.

The cold water tank 2 is divided into upper and lower layers to accommodate air and drinking water. The cold water tank 2 is provided with a cooling device 21 for cooling the drinking water stored in the cold water tank 2. Further, a baffle 22 for partitioning 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 temperature of the drinking water at a low temperature (about 5 ℃) below the baffle 22 in the cold water tank 2. The volume of the drinking water in the cold water tank 2 is smaller than that of the raw water container 16, and is about 2 liters to 4 liters.

The cold water outlet passage 3 communicates between the cold water tank 2 and a cold water outlet 23 (see fig. 2) that opens on the front surface side of the housing 1. A cold water outlet valve 4 is provided at an end of the cold water outlet 3 on the cold water outlet 23 side. When the cold water outlet valve 4 is opened, the low-temperature drinking water in the cold water tank 2 passes through the cold water outlet passage 3 and is discharged from the cold water outlet 23.

The hot water tank 5 is disposed below the cold water tank 2. The hot water tank 5 is provided with a heating device 24 for heating the drinking water stored 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 ℃). The volume of the hot water tank 5 is about 1 liter to 2 liters.

The hot water output passage 6 communicates between the hot water tank 5 and a hot water outlet 25 that opens on the front surface side of the housing 1. A hot water outlet valve 7 is provided at the end of the hot water outlet passage 6 on the hot water outlet 25 side. When the hot water output valve 7 is opened, the hot drinking water at high temperature in the hot water tank 5 passes through the hot water output passage 6 and is output from the hot water outlet 25.

The cold water tank 2 and the hot water tank 5 are communicated by a tank connection pipe 26. When the drinking water is output from the hot water tank 5, the same amount of drinking water as the drinking water flows from the cold water tank 2 into the hot water tank 5 through the tank connection pipe 26, and the hot water tank 5 is always kept in a full water state.

In order to prevent the infant from carelessly operating and outputting hot water, the water dispenser is provided with a normal child safety lock function. In the normal child safety lock function, the operation for opening the hot water outlet valve 7 is a combination of 2 or more operations (specifically, a combination of an operation of a child safety lock release button 47 and an operation of the hot water outlet operation lever 43 described later), and thus the hot water outlet valve 7 is not easily opened even when an infant operates the child safety lock function.

In addition to the above-described normal child safety lock function, the drinking fountain is provided with a complete child safety lock function using a portable key member 30 so that the drinking fountain can reliably prevent the output of hot water even when a child performs various operations on the drinking fountain. The full child safety lock function is the following: the hot water outlet valve 7 is opened by an external operation (operation of the child safety lock release button 47 and the hot water outlet operation lever 43) only when the key member 30 shown in fig. 3 is held, and the hot water outlet valve 7 cannot be opened by an external operation in a state where the key member 30 is not held.

As shown in fig. 3, the key member 30 includes a grip portion 31, a grip-side straight portion 32, a curved portion 33, and a tip-side straight portion 34 in this order from the grip portion 31 toward the tip. The grip portion 31 is a portion that is gripped with a finger when the user operates the key member 30. Both the grip-side straight portion 32 and the tip-side straight portion 34 are formed to extend straight, and the end of the grip-side straight portion 32 and the end of the tip-side straight portion 34 are connected by a bent portion 33.

As shown in fig. 4, the hot water output valve 7 includes: a valve body 40 provided movably between a valve-closed position (see fig. 4) for closing the hot water discharge passage 6 and a valve-open position (see fig. 10) for opening the hot water discharge passage 6; a valve spring 41 that biases the valve body 40 from the valve-open position to the valve-closed position; a stem 42 fixed to the valve body 40 so as to move integrally with the valve body 40; and a hot water output operation lever 43, the user operating the hot water output operation lever 43 to output hot water. The hot water output operation lever 43 is coupled to the valve rod 42 via a coupling pin 44, and the valve body 40 can be moved from the valve-closed position to the valve-open position by operating the hot water output operation lever 43.

The hot water output valve 7 includes: a valve opening prevention member 45 provided movably between a valve opening prevention position (see fig. 4) for preventing the valve body 40 from moving from the valve closed position to the valve opened position and a valve opening permission position (see fig. 10) for permitting the valve body 40 of the hot water output valve 7 to move from the valve closed position to the valve opened position; a lock spring 46 that biases the valve opening prevention member 45 from the valve opening permission position to the valve opening prevention position; a child safety lock release button 47, which is operated by the user to move the valve opening prevention member 45 from the valve opening prevention position to the valve opening permission position; and a switching member 48 that switches between a state in which the child safety lock release button 47 can be operated and a state in which it cannot be operated.

The stem 42 is disposed to extend in the vertical direction and supported to be movable up and down. When the valve body 40 moves from the valve-closed position to the valve-open position, the stem 42 moves upward, and when the valve body 40 moves from the valve-open position to the valve-closed position, the stem 42 moves downward. A stepped portion 49 having a large diameter on the lower side is formed on the outer periphery of the stem 42. The valve opening prevention member 45 is formed with a through hole 50 in the vertical direction through which the stem 42 is inserted. When the valve opening prevention member 45 is in the valve opening prevention position (see fig. 4), the edge of the through hole 50 of the valve opening prevention member 45 engages with the step portion 49 on the outer periphery of the valve stem 42 to prevent the upward movement of the valve stem 42, and when the valve opening prevention member 45 is in the valve opening allowing position (see fig. 10), the through hole 50 of the valve opening prevention member 45 allows the step portion 49 on the outer periphery of the valve stem 42 to pass through and allows the upward movement of the valve stem 42.

As shown in fig. 5, the child safety lock release button 47 includes: a button body 53 slidably received in a button receiving hole 52 opened on a front surface side of the cock case (tap case) 51; and a plunger 54 integrally formed with the button body 53 so as to extend rearward from the button body 53. The plunger 54 is inserted through a through hole 55 formed in the switching member 48 in the axial direction, and protrudes rearward in the axial direction from the switching member 48. The rear end of the plunger 54 contacts the valve opening preventing member 45. When the child safety lock release button 47 is pushed and moved rearward in the axial direction, the valve opening preventing member 45 is pushed by the plunger 54 and moved rearward integrally with the child safety lock release button 47.

As shown in fig. 6, the switching member 48 is a cylindrical member having an insertion port 60 into which the key member 30 is inserted in the outer periphery, and the switching member 48 is rotatably supported by a holding member 61. The switching member 48 is circumferentially movable between a normal child safety lock position (see fig. 6), a full child safety lock position (see fig. 13), and a child safety lock release holding position (see fig. 17). A projection 62 is provided on the outer periphery of the plunger 54 of the child safety lock release button 47, an axial groove 63 is formed on the inner periphery of the through hole 55 of the switching member 48, and the projection 62 is engaged with the groove 63 so as to be slidable in the axial direction. The engagement between the projection 62 and the groove 63 causes the child lock release button 47 to rotate integrally with the switching member 48.

The holding member 61 is provided with a guide wall 64, and the guide wall 64 prevents the key member 30 from moving in a direction to disengage from the insertion port 60 in a state where the switching member 48 is in the normal child safety lock position. The guide wall 64 is a wall provided radially opposite to the portion of the insertion port 60 on the outer periphery of the switching member 48 in the state where the switching member 48 is in the normal child lock position. A passage 65 extending in an arc shape is formed between the guide wall 64 and the outer periphery of the switching member 48, and the curved portion 33 of the key member 30 is movable in the circumferential direction in the passage 65.

As shown in fig. 13, a key passage 66 is formed in the plug housing 51 and the holding member 61, and the key passage 66 allows the key member 30 to move in a direction to be disengaged from the insertion port 60 in a state where the switching member 48 is in the full child-resistant lock position. The key passage 66 extends linearly from a circumferential end of the arcuate passage 65 to a radially outer side.

As shown in fig. 5, distal end side straight portion 34 of key element 30 extends radially inward from insertion port 60 in a state where key element 30 is inserted into insertion port 60. The curved portion 33 extends from the radially outer end of the distal end side straight portion 34 along the guide wall 64 and in the axial direction. Further, a slit 67 is formed between the plug housing 51 and the holding member 61, and the straight pinching-side portion 32 is accommodated between the axially facing surfaces of the slit 67 so as to be movable in the circumferential direction.

As shown in fig. 7, a plurality of radial projections 68 are provided at intervals in the circumferential direction on the outer periphery of the button body 53 of the child safety lock release button 47. The holding member 61 is provided with a plurality of stopper projections 69 corresponding to the plurality of radial projections 68 of the button body 53 at intervals in the circumferential direction. When the switching member 48 is in the normal child safety lock position (see fig. 6), as shown in fig. 7, the stopper projection 69 is formed in a positional relationship of being shifted from the radial projection 68 of the button main body 53 as viewed in the axial direction, so that the child safety lock release button 47 is allowed to move in the axial direction to the rear, but when the switching member 48 is in the full child safety lock position (see fig. 13), as shown in fig. 14, the stopper projection 69 is formed in a positional relationship of being overlapped with the radial projection 68 of the button main body 53 as viewed in the axial direction, so that the stopper projection 69 receives the radial projection 68 of the button main body 53 from the axial direction to the rear, so that the child safety lock release button 47 is prevented from moving in the axial direction to the rear.

As shown in fig. 5, a plurality of columnar projections 70 are formed at intervals in the circumferential direction on the surface of the switching member 48 facing the valve opening prevention member 45 in the axial direction. Further, a plurality of columnar projections 71 are formed at intervals in the circumferential direction on the surface of the valve opening prevention member 45 facing the switching member 48 in the axial direction.

As shown in fig. 8, the side surface of the columnar projection 70 of the switching member 48 and the side surface of the columnar projection 71 of the valve opening preventing member 45 are circumferentially opposed to each other, and the side surface of the columnar projection 70 and the side surface of the columnar projection 71 are in contact with each other, whereby the switching member 48 is restricted from moving from the normal child lock position to the child lock release holding position. The valve opening prevention member 45 is supported slidably in the axial direction and is locked in rotation on an inner surface of a support hole 72 (see fig. 5) formed in the holding member 61.

An example of use of the water dispenser with a key will be described.

< fully child safety Lock State >

As shown in fig. 11, 12, and 13, in a state where the key member 30 is operated and the switching member 48 is moved 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, and the child safety lock cannot be released.

That is, when the switching member 48 is in the full child safety lock position, as shown in fig. 14, the radial projection 68 of the button body 53 of the child safety lock release button 47 is disposed so as to overlap the stopper projection 69, and therefore, even if the child safety lock release button 47 is pressed, the child safety lock release button 47 cannot be moved, and as shown in fig. 12, the valve opening preventing member 45 is prevented from moving from the valve opening preventing position to the valve opening allowing position. That is, the hot water cannot be output by the operation of the child safety lock release button 47 and the hot water output operation lever 43.

At this time, as shown in fig. 13, since the position of insertion port 60 and the position of key passage 66 are aligned on a straight line, key member 30 can be pulled out from insertion port 60. Furthermore, the key member 30 that is pulled out is stored in a place where the hand of the infant cannot reach, so that the burn accident of the infant can be prevented very effectively. That is, even if the child performs various operations on the water dispenser without holding the key member 30, the child safety lock release button 47 is operated to prevent the valve opening blocking member 45 from moving from the valve opening blocking position to the valve opening allowing position, thereby reliably preventing the child from outputting hot water.

Here, in the state shown in fig. 13 in which the key member 30 is removed from the insertion port 60, even if the infant inserts a straight rod-shaped object (rod-shaped object that is not the key member 30) into the insertion port 60, the rod-shaped object that does not have the bent portion 33 interferes with the guide wall 64, 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 the child from releasing the child safety lock completely by the straight stick-shaped object (toothpick, etc.), and high safety can be ensured. On the other hand, since the key member 30 has the curved portion 33, even if the key member 30 moves in the circumferential direction in a state of being inserted into the insertion port 60, it does not interfere with the guide wall 64.

< general child safety Lock State >

By operating the key member 30 inserted into the insertion port 60, the switching member 48 is moved from the full child lock position (see fig. 13) to the normal child lock position (see fig. 6). In this state, the child safety lock release button 47 can be pushed and moved.

That is, as shown in fig. 6, when the switching member 48 is in the normal child safety lock position, as shown in fig. 7, the stopper projection 69 is released from restricting the movement of the child safety lock release button 47 in a state where the radial projection 68 of the button body 53 of the child safety lock release button 47 is displaced from the stopper projection 69, and therefore, the child safety lock release button 47 is operated to allow the valve opening preventing member 45 to move from the valve opening preventing position to the valve opening allowing position. In this state, hot water can be output by operating the hot water output operation lever 43 while pressing the child safety lock release button 47.

< child safety Lock Release holding State >

In a use environment (for example, a conference room of a company) in which an infant does not enter, the child safety lock release button 47 is pressed as shown in fig. 16, and in this state, the key member 30 is operated as shown in fig. 15, and the switching member 48 is moved from the normal child safety lock position (see fig. 6) to the child safety lock release holding position (fig. 17). As a result, as shown in fig. 18, the distal end surface of the columnar projection 70 of the switching member 48 and the distal end surface of the columnar projection 71 of the valve opening prevention member 45 are brought into abutment in the axial direction, and as shown in fig. 16, the valve opening prevention member 45 is prevented from being held at the valve opening permission position. In this state, the operation of the child safety lock release button 47 for hot water output can be omitted, and hot water can be output only by operating the hot water output operation lever 43 without operating the child safety lock release button 47.

Here, when the switching member 48 is moved from the normal child lock position (see fig. 6) to the child lock release holding position (fig. 17), if the operating force is not applied to the child lock release button 47, the opposing surfaces of the columnar projection 70 and the columnar projection 71 in the circumferential direction interfere with each other as shown in fig. 8, and therefore the switching member 48 cannot be moved from the normal child lock position to the child lock release holding position. Therefore, the switching member 48 can be prevented from being moved from the normal child safety lock position to the child safety lock release holding position by the child, and safety is high.

Since the key member 30 can be carried independently of the housing 1, the water dispenser with a key can store the key member 30 in a place where the hands of a child cannot reach. Further, even if the child performs various operations on the water dispenser without holding the key member 30, the child safety lock release button 47 is operated to prevent the valve opening prevention member 45 from moving from the valve opening prevention position to the valve opening permission position, and thus hot water is not discharged. In this way, by storing the key member 30 in a place where the hand of the infant cannot reach, the burn accident of the infant can be prevented extremely effectively.

In the water dispenser with a key, as shown in fig. 6, in a state where the switching member 48 is in the normal child-resistant lock position, the movement of the key member 30 in the direction of being detached from the insertion port 60 is restricted by the guide wall 64. That is, when the switching member 48 is in the normal child safety lock position, the key member 30 cannot be pulled out from the insertion port 60, and as shown in fig. 13, the key member 30 can be pulled out 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 surely reaches the full child safety lock position, and thus the normal child safety lock state can be reliably prevented from being changed when the key member 30 is pulled out, and high safety can be ensured.

The normal child safety lock function and the full child safety lock function described above can be provided not only for the hot water outlet valve 7 but also for the cold water outlet valve 4. Here, when the cold water outlet valve 4 is configured similarly to the hot water outlet valve 7, there is a risk that: the child uses the key member 30c of the cold water outlet valve 4 as the key member 30 of the hot water outlet valve 7. In order to eliminate such a risk, it is preferable that: the key member 30c of the cold water outlet valve 4 cannot be used for the hot water outlet valve 7. As the key member 30c having such a structure, for example, as shown in fig. 19, a structure having a bent portion 33c in which the bent portion 33c is set to have a larger radial thickness than the bent portion 33 of the key member 30 of the hot water outlet valve 7 may be adopted. At this time, the radial inner width of the passage 65c of the cold water outlet valve 4 through which the bent portion 33c of the key member 30c passes is set to be larger than the radial inner width of the passage 65 of the hot water outlet valve 7 through which the bent portion 33 of the key member 30 passes.

It should be understood that the embodiments disclosed herein are exemplary in all respects, and are not to be construed as limiting the invention. The scope of the present invention is defined by the claims rather than the description above, and all modifications within the scope and range equivalent to the claims are intended to be included in the present invention.

Claims

1. A water dispenser with a key, wherein,

the water dispenser with the key comprises:

a housing (1);

a hot water tank (5) disposed inside the housing (1);

a hot water outlet path (6) for outputting high-temperature drinking water in the hot water tank (5) to the outside of the housing (1);

a hot water outlet valve (7) which has a valve element (40) and a valve rod (42) fixed to the valve element (40) and which opens and closes the hot water outlet passage (6);

a valve-opening prevention member (45) having a through hole (50) in the vertical direction through which the valve rod (42) is inserted, and provided so as to be movable between a valve-opening allowing position and a valve-opening prevention position, wherein the valve opening permission position is a position for permitting the valve body (40) of the hot water output valve (7) to move from a valve closing position to a valve opening position, the valve opening prevention position is a position for preventing the valve core (40) of the hot water output valve (7) from moving from the valve closing position to the valve opening position, when the valve is at the valve opening prevention position, the edge of the through hole (50) is engaged with a step part (49) on the outer periphery of the valve rod (42) to prevent the valve rod (42) from moving upwards, when the valve is in the valve opening allowable position, the through hole (50) allows the stepped portion (49) on the outer periphery of the valve rod (42) to pass through, and allows the valve rod (42) to move upward;

a child safety lock release button (47) having: a button body (53) slidably received in a button receiving hole (52) opened on a front surface side of a housing (51), and a plunger (54) integrally formed with the button body (53) so as to extend rearward from the button body (53), wherein a user operates the child safety lock release button (47) to move the valve opening prevention member (45) from the valve opening prevention position to the valve opening allowable position;

a key member (30) configured to be carried independently of the housing (1); and

a switching member (48) which is a cylindrical member having an insertion port (60) into which the key member (30) is inserted on the outer periphery thereof, and which is configured such that the switching member (48) is moved between a normal child safety lock position and a complete child safety lock position by operating the key member (30) inserted into the insertion port (60), wherein the normal child safety lock position is a position in which the valve opening prevention member (45) is allowed to move from the valve opening prevention position to the valve opening allowable position, and the complete child safety lock position is a position in which the valve opening prevention member (45) is prevented from moving from the valve opening prevention position to the valve opening allowable position,

a through hole (55) through which the plunger (54) is inserted is formed in the axial direction of the switching member (48), the plunger (54) 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),

the water dispenser with the key also comprises:

a key passage (66), said key passage (66) allowing movement of said key member (30) in a direction to disengage from said insertion port (60) in a state where said switching member (48) is in said full child safety lock position; and

a guide wall (64), wherein the guide wall (64) prevents the key member (30) from moving in a direction of disengaging from the insertion opening (60) in a state where the switching member (48) is in the normal child safety lock position,

the guide wall (64) is a wall provided so as to be radially opposed to a part of the insertion opening (60) on the outer periphery of the switching member (48) in a state where the switching member (48) is in the normal child-resistant lock position,

the key member (30) has: a straight portion (34) that extends radially inward from the insertion opening (60) when the key member (30) is inserted into the insertion opening (60); and a curved portion (33) extending from a radially outer end of the straight portion (34) along the guide wall (64) and in an axial direction.

2. The keyed water dispenser of claim 1,

the switching member (48) is also movable to a child safety lock release holding position for holding the valve opening prevention member (45) in the valve opening allowing position.

3. The keyed water dispenser of claim 1,

the structure is as follows: the switching member (48) can be moved from the normal child lock position to the child lock release holding position by operating the key member (30) inserted into the insertion port (60) in a state where an operating force is applied to the child lock release button (47), and the switching member (48) is prevented from moving from the normal child lock position to the child lock release holding position in a state where the operating force is not applied to the child lock release button (47).

4. A water dispenser with a key, wherein,

the water dispenser with the key comprises:

a housing (1);

a hot water tank (5) disposed inside the housing (1);

the key member (30) has: a straight portion (34) that extends radially inward from the insertion opening (60) when the key member (30) is inserted into the insertion opening (60); and a curved portion (33) extending from a radially outer end of the straight portion (34) along a guide wall (64) and in an axial direction,

the switching member (48) is rotatably supported by a holding member (61), a plurality of stopper projections (69) corresponding to a plurality of radial projections (68) of the button body (53) of the child safety lock release button (47) are provided on the holding member (61) at intervals in the circumferential direction,

the switching member (48) is movable to a child safety lock release holding position for holding the valve opening prevention member (45) in the valve opening allowing position when the stopper projection (69) and the radial projection (68) are in a positional relationship of being offset from each other,

the guide wall (64) is a wall provided radially opposite to the insertion opening (60) on the outer periphery of the switching member (48) in the state where the switching member (48) is in the normal child-resistant lock position.

5. The keyed water dispenser of claim 4,