KR200384645Y1 - Cartridge for Hot Water Opening and Shutting Valve - Google Patents

Abstract

The present invention relates to a cartridge for a hot water opening / closing valve, wherein a valve seat and a valve seat are formed inside the flow path tube part so as to divide the flow path part inside and outside the inlet side and the outlet side. Hot water opening and closing, which is mounted to open and close the valve seat in accordance with the rotation operation of the rotation operation portion in the valve body having a movement guide tube portion formed to branch from the flow path tube portion and the rotation operation portion provided at the end of the movement guide tube portion to face the In the cartridge for a valve, the support jaw is formed in the front peripheral edge toward the inside, the female thread is formed on the inner peripheral surface of the rear end region, the movement guide so that the support jaw toward the valve seat and the outer surface is in close contact with the movement guide tube portion An opening and closing guide tube mounted on the tube part; A head portion formed to conform to the opening area of the valve seat, a rod-shaped leg portion extending from the head portion, and a support plate detachably coupled to a free end of the leg portion, wherein the head portion faces the valve seat and the leg A valve body attached to the moving guide tube so as to penetrate the front opening of the opening and closing guide tube; A stem portion having a front male thread interacting with the female screw of the opening and closing guide tube on an outer circumferential surface thereof, and a shaft portion extending from a rear surface of the stem portion; A pressing block mounted to the moving guide tube so as to move forward and backward along a longitudinal direction; An insensitive spring mounted to the opening and closing guide tube so as to be interposed between the supporting plate and the supporting jaw; It is made of a unidirectional shape memory alloy material to have a greater elastic modulus than the non-sensitive spring, characterized in that it comprises a sensitive spring mounted to the leg portion to be interposed between the head portion and the support jaw. As a result, the accuracy of the opening and closing temperature and the life of the non-sensitive spring can be improved, and the structure of the valve body is simplified.

Description

Cartridge for Hot Water Opening and Shutting Valve}

The present invention relates to a cartridge for a hot water open / close valve, and more particularly, to a cartridge for a hot water open / close valve that automatically closes a flow path when a temperature of a fluid reaches a set temperature using a temperature characteristic of a shape memory alloy.

Shape Memory Alloy (SMA) is an alloy that has the property of being restored to its original shape when it is heated to the shape recovery temperature even if the shape stored at a certain temperature is deformed at a lower temperature. It is also used in the field of valve technology, such as (design: cartridge for hot water open / close valve using shape memory alloy spring) and utility model registration application No. 21009 (design name: hot water automatic control valve).

8 is a cross-sectional view of a conventional hot water open / close valve.

The conventional on-off valve is disclosed in Utility Model Application No. 21009 in 2000, and has a valve body 150 and a cartridge 110 installed in the valve body 150 as shown in FIG.

The valve body 150 has a flow path pipe part 151 having a flow path 151a formed in the left and right directions therein, and an inside of the flow path pipe part 151 so as to divide the inner flow path 151a into an inlet flow path and an outlet flow path. The valve seat 152 formed in the center region, the movement guide pipe part 153 and the lower cap 154 which are separated and disposed up and down with the valve seat 152 interposed therebetween, and the upper end of the movement guide pipe part 153. It has an upper cap 155 and a handle 160 coupled to.

The movement guide tube portion 153 is formed to communicate with the inlet side flow path.

The lower cap 154 is formed to communicate with the outlet side flow path, and is formed to have a length section similar to that of the movement guide pipe 153.

The lower cap 154 having such a configuration is screwed to the flow path tube part 151.

The upper cap 155 is formed with a shaft support hole (155a) in the center area, the screw is coupled to the upper end of the movement guide tube 153.

The handle 160 is formed to have a substantially depressed shaped cross section and is screwed to the upper outer circumferential surface of the movement guide tube 153.

The cartridge 110 includes a straight shaft portion 111, a check 115 coupled to the central region of the shaft portion 111, and an upper latch 116 and a lower latch coupled to the upper region and the lower portion of the shaft portion 111, respectively. 117, the sensitive spring 112 mounted on the shaft 111 to be interposed between the check 115 and the upper latch 116, and the shaft 111 to be interposed between the check 115 and the lower latch 117. It has a non-sensitized spring 113 attached to the.

The shaft portion 111 is fixed to the upper cap 155 to be elevated through the shaft support hole 155a of the upper cap 155.

The check 115 is open upward, the axial engagement hole 115a is formed in the center area of the bottom surface, and the through hole 115b is formed in the circumferential region of the axial engagement hole 115a.

The check 115 is coupled to the shaft portion 111 through the shaft coupling hole 115a.

The sensitive spring 112 is made of a unidirectional shape memory alloy material.

Cartridge 110 having such a configuration has a check valve 115 is disposed on the upper side of the valve seat 152, the shaft portion 111 is disposed inside the movement guide tube 153 and the lower cap 154 ( 150).

Referring to Figures 8 and 9 the operation of the conventional on-off valve as follows. For convenience of explanation, it is assumed that the valve seat 152 is closed by the cartridge 110, that is, the check 115. In this way, in the state in which the valve seat 152 is closed, the sensitive spring 112 maintains the state formed by the external force.

First, when the handle 160 is rotated to raise, the check 115 is lifted from the valve seat 152 and the valve seat 152 is opened (see Fig. 8). When the valve seat 152 is opened, hot water flows in from the left flow passage, passes through the valve seat 152, and flows out through the right flow passage.

The hot water flowing through the internal passage in the state in which the valve seat 152 is opened enters the check 115 through the through hole 115b.

Heat is transferred from the hot water entering the check 115 to the sensitive spring 112.

When the temperature of the hot water entering the inside of the check 115 rises to the shape recovery temperature, the sensitive spring 112 is elongated (memorized shape).

As the sensitive spring 112 extends, the check 115 is lowered and the valve seat 152 is closed (see FIG. 9). Insensitive spring 113 is retracted while check 115 is lowered.

When the valve seat 152 is closed, the controller (not shown) controls the operation of the hot water heating source (not shown) and the circulation pump (not shown) to be temporarily stopped. When the operation of the hot water heating source (not shown) and the circulation pump (not shown) are stopped, the temperature of the hot water in the internal passage 151a and the hot water in the check 115 are lowered.

As the temperature of the hot water entering the interior of the check 115 decreases, the sensitive spring 112 returns to its original shape (ie, to the shape formed by external force in manufacturing).

When the sensitive spring 112 returns to its original shape, the check 115 is raised from the valve seat by the elastic force of the non-sensitive spring 113, and the valve seat 152 is opened again.

When the valve seat 152 is opened, the control unit (not shown) resumes operation of the hot water heating source (not shown) and the circulation pump (not shown).

When the operation of the hot water heating source (not shown) and the circulation pump (not shown) are resumed, the hot water flows in from the left flow passage, passes through the valve seat 152, and flows out again through the right flow passage.

On the other hand, when you want to stop the flow of hot water completely, the handle 160 is rotated to be lowered.

When the handle 160 is lowered, the check 115 is lowered and the valve seat 152 is closed. When the valve seat 152 is closed, the flow of hot water is stopped until the handle 160 is operated up.

By the way, according to the conventional cartridge for hot water opening and closing valve, since the sensitive spring 112 is isolated from the internal passage 151a by the check 115, there is a problem that the amount of heat transmitted to the sensitive spring 112 is reduced ( Heat is transferred to the sensitive spring only through hot water entering the check). As a result, the memory shape recovery operation of the sensitive spring 112 is delayed, thereby reducing the accuracy of the opening and closing temperature.

In addition, since the non-sensitive spring 113 is in a contracted state in a state in which the valve seat 152 is manually closed, there is a problem in that the life of the non-sensitive spring 113 is shortened.

In addition, since the non-sensitive spring 113 and the sensitive spring 112 are disposed on both sides of the valve seat 152, there is a problem that the structure of the valve body 150 becomes complicated.

It is therefore an object of the present invention to provide a cartridge for a hot water opening / closing valve, in which the accuracy of opening and closing temperature and life of an insensitive spring are improved, and the structure of the valve body is simplified.

The object is, according to the present invention, so as to face the valve seat and the valve seat formed inside the flow path pipe portion to partition the inner flow path and the inner flow path formed in the left and right side in accordance with the present invention. Cartridge for hot water opening and closing valve mounted on the valve body having a movement guide tube branched from the flow path tube portion and a rotation operation portion provided at the end of the movement guide tube portion in accordance with the rotation operation of the rotation operation portion. In the periphery of the front support jaw is formed toward the inner side, the female thread is formed on the inner peripheral surface of the rear end region, the support jaw toward the valve seat and the outer surface is attached to the movement guide tube so as to be in close contact with the movement guide tube The opening and closing guide tube; A head portion formed to conform to the opening area of the valve seat, a rod-shaped leg portion extending from the head portion, and a support plate detachably coupled to a free end of the leg portion, wherein the head portion faces the valve seat and the leg A valve body attached to the moving guide tube so as to penetrate the front opening of the opening and closing guide tube; A stem portion having a front male thread interacting with the female screw of the opening and closing guide tube on an outer circumferential surface thereof, and a shaft portion extending from a rear surface of the stem portion; A pressing block mounted to the moving guide tube so as to move forward and backward along a longitudinal direction; An insensitive spring mounted to the opening and closing guide tube so as to be interposed between the supporting plate and the supporting jaw; It is made of a unidirectional shape memory alloy material to have a greater elastic modulus than the non-sensitive spring, and comprising a sensitive spring mounted to the leg portion so as to be interposed between the head portion and the support jaw by the cartridge for hot water opening and closing valve Is achieved.

Wherein the stem part has a rear stem portion formed on an outer circumferential surface of the stem to interact with a female screw formed on an inner circumferential surface of the terminal region of the movement guide tube so as to stably maintain movement of the stem and improve the sealing property of the movement guide tube portion; It is preferable that the front stem is formed to have a smaller diameter than the rear stem and the front stem is formed on the outer circumferential surface.

In addition, the head portion may be formed in a hemispherical shape so that the curved area faces the valve seat so that the sensitive spring can be mounted stably.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a cartridge for a hot water opening and closing valve according to an embodiment of the present invention, Figure 2 is a combined perspective view of a cartridge for a hot water opening and closing valve according to an embodiment of the present invention, Figure 3 is according to an embodiment of the present invention 4 is an exploded cross-sectional view of a cartridge for a hot water open / close valve, and FIG. 4 is a combined cross-sectional view of the cartridge for a hot water open / close valve according to an embodiment of the present invention.

Cartridge 10 for hot water opening and closing valve according to an embodiment of the present invention, the opening and closing guide is mounted so that the outer surface is in close contact with the movement guide tube portion 53 of the valve body 50 to be described later The pipe 11, the valve body 20 and the pressure block 30 mounted on the movement guide pipe part 53, the non-sensitive spring 12 mounted on the opening and closing guide pipe 11, and the opening and closing guide pipe 11. Has a sensitive spring 13 attached to the valve body 20 and a sealing ring 15 attached to an outer surface central region of the opening and closing guide tube 11 in front of the valve body 20.

In the opening and closing guide tube 11, the support jaw 11a is formed inwardly at the front circumferential edge thereof, and a female screw 11b is formed on the inner circumferential surface of the rear end region.

The opening and closing guide tube 11 having such a configuration is mounted to the movement guide tube portion 53 so that the support jaw 11a faces the valve seat 52.

The valve body 20 includes a head portion 21 formed to conform to the valve seat 52 of the valve body 50, a rod-shaped leg portion 22 extending from the head portion 21, and a leg portion 22. It has a support plate 23 screwed to the free end of the).

The head portion 21 is formed in a hemispherical shape such that the curved area faces the valve seat 52 described later.

The valve body 20 having such a configuration is mounted to the movement guide tube portion 53 such that the head portion 21 faces the valve seat 52 and the leg portion 22 penetrates the front opening of the opening and closing guide tube 11. have.

The pressing block 30 has a rear stem portion 31, a front stem portion 32 extending from the front surface of the rear stem portion 31 to have a diameter smaller than the rear stem portion 31, and a rear stem portion 31. The shaft portion 33 extends from the rear surface of the front stem portion 32 in the opposite direction.

The rear stem portion 31 has a rear male thread 31a which interacts with the female screw 53a of the movement guide tube portion 53 on the outer circumferential surface thereof.

The front stem portion 32 is formed on the outer circumferential surface of the front male screw (32a) to interact with the female screw (11b) of the opening and closing guide tube (11).

In the pressure block 30 having such a configuration, the rear male screw 31a is engaged with the female screw 53a of the movement guide tube part 53 and the front male screw 32a is engaged with the female screw 11b of the opening and closing guide tube 11. It is attached to the movement guide tube portion 53 so as to.

The non-sensitive spring 12 is mounted inside the opening and closing guide tube 11 so as to be interposed between the supporting plate 23 and the supporting jaw 11a.

The sensitive spring 13 is made of a unidirectional shape memory alloy material. Accordingly, the sensitized spring 13 is restored to the stored shape when it becomes above a certain shape recovery temperature even if it is deformed by an external force at the time of manufacture below a certain shape recovery temperature. Here, the sensitive spring 13 determines the shape recovery temperature in consideration of the upper limit temperature of the hot water to be blocked. For example, when the upper limit temperature of the hot water to be blocked is 50 degrees Celsius, the sensitive spring 13 may be manufactured by adjusting the component ratio to have a shape recovery temperature of 50 degrees Celsius.

The sensitive spring 13 is formed so that the elastic modulus on the martensite has a value larger than that of the non-sensitive spring 12. Accordingly, the sensitive spring 13 can overcome the elastic force of the non-sensitive spring 12 above the shape recovery temperature and restore, i.e., elongate the stored shape.

The sealing ring 15 is attached to the annular groove 53b formed on the inner wall surface of the movement guide tube portion 53.

Hot water on-off valve cartridge 10 according to an embodiment of the present invention having such a configuration is mounted on the valve body.

The valve body 50 to which the hot water opening / closing valve cartridge is mounted according to an embodiment of the present invention, as shown in FIG. 5, has a flow path tube part 51 in which flow paths 51a are formed left and right, and the inside of the valve body 50. A valve seat 52 formed inside the flow path tube part 51 so as to divide the flow path 51a into the inlet side and the exit side, and a movement guide pipe part branched from the flow path tube part 51 so as to face the valve seat 52 ( 53 and a handle 60 having a substantially dichroic cross section coupled to the shaft portion 33 of the pressing block 30.

The movement guide tube portion 53 has a female screw 53a formed on the inner circumferential surface of the end region, and a groove 53b for mounting the sealing ring 15 on the inner wall surface of the central region.

As described above with reference to FIGS. 5, 6 and 7 the operation of the cartridge 10 for hot water opening and closing valve according to the embodiment of the present invention mounted on the valve body 50 as follows. For convenience of explanation, it is assumed that the valve seat 52 is closed by the cartridge 10, that is, the valve body 20. In this way, in the closed state of the valve seat 52, the non-sensitized spring 12 and the sensitive spring 13 maintain the shape at the time of manufacture.

First, when the handle 60 is rotated to be raised, the pressure block 30 is the female thread 53a of the rear male thread 31a and the movement guide tube part 53 and the female thread of the front male thread 32a and the opening / closing guide tube 11. Moving in the direction away from the valve seat 52 in accordance with the interaction between (11b).

As the pressure block 30 moves away from the valve seat 52, the valve body 20 rises from the valve seat 52 and the valve seat 52 opens (see FIG. 5).

When the valve seat 52 is opened, hot water flows in from the left flow passage, passes through the valve seat 52, and flows out through the right flow passage.

Heat is transferred from the hot water flowing through the internal flow passage 51a to the sensitive spring 13 while the valve seat 52 is opened.

When the temperature of the hot water flowing through the inner flow passage 51a rises to the shape recovery temperature, the sensitive spring 13 is elongated (memorized shape).

As the sensitive spring 13 extends, the valve body 20 descends toward the valve seat 52 and the valve seat 52 is closed (see FIG. 7). The non-sensitive spring 12 is retracted while the valve body 20 is lowered.

When the valve seat 52 is closed, the controller (not shown) controls the operation of the hot water heating source (not shown) and the circulation pump (not shown) to be temporarily stopped. When the operation of the hot water heating source (not shown) and the circulation pump (not shown) are stopped, the temperature of the hot water in the inner flow passage 51a is lowered.

As the temperature of the warm water in the inner flow passage 51a decreases, the sensitive spring 13 returns to its original shape.

When the sensitive spring 13 returns to its original shape, the valve body 20 is lifted from the valve seat 52 by the elastic force of the non-sensitive spring 12, and the valve seat 52 is opened again.

When the valve seat 52 is opened, the controller (not shown) resumes operation of the hot water heating source (not shown) and the circulation pump (not shown).

When the operation of the hot water heating source (not shown) and the circulation pump (not shown) are resumed, the hot water flows in from the left flow passage, passes through the valve seat 52, and flows out again through the right flow passage.

On the other hand, when you want to stop the flow of hot water completely, the handle 60 is rotated to be lowered.

When the handle 60 is lowered, the cartridge 10 is lowered as a whole and the valve seat 52 is closed (see Fig. 6). When the valve seat 52 is closed, the flow of hot water is stopped until the handle 60 is rotated to raise.

As described above, according to the embodiment of the present invention, the sensitive spring 13 is exposed to the internal flow path 51a as it is, thereby increasing the amount of heat transferred to the sensitive spring 13.

In addition, by preventing the non-sensitive spring 12 from contracting in a state where the valve seat 52 is manually closed, the life of the non-sensitive spring 12 can be prevented from being shortened.

In addition, the non-sensitized spring 12 and the sensitive spring 13 are arranged on one side of the valve seat 52, thereby simplifying the structure of the valve body 50.

In addition, by having the stem portion 31 in close contact with the inner surface of the movement guide tube portion 53 and the front stem portion 32 in close contact with the inner surface of the opening and closing guide tube 11, the movement of the stem portion It is possible to maintain stable and improve the sealability of the movement guide tube (53).

Further, by forming the head portion 21 of the valve body 20 in a hemispherical shape, the sensitive spring 13 can be mounted stably.

Meanwhile, in the above-described embodiment, the stem part has a rear stem part 31 closely fitting to the inner surface of the movement guide tube part 53 and the front stem part 32 closely fitting to the inner surface of the opening and closing guide tube 11. However, only the front stem portion 32 is configured to be in close contact with the inner surface of the opening and closing guide tube 11, so that the present invention can be implemented (however, the handle 60 has the same structure as in the case of the conventional hot water opening / closing valve). ).

In the above-described embodiment, the head portion 21 of the valve body 20 is formed in a hemispherical shape, but the present invention may be implemented by deforming to another shape such as a sphere corresponding to the shape of the valve seat 52. to be.

In addition, in the above-described embodiment, the present invention is applied to the hot water open / close valve employing the handle 60 as the rotary control unit, but the present invention may be applied to the hot water open / close valve employing a motor capable of forward and reverse rotation as the rotary control unit. Can be.

In addition, in the above-described embodiment, the present invention is applied to a hot water open / close valve having a straight internal flow path 51a, but the present invention may be applied to a hot water open / close valve having another type of internal flow path such as an internal flow path having an angle of 90 degrees. Can be.

Therefore, according to the present invention, the sensitive spring is exposed to the internal flow path, thereby increasing the amount of heat transferred to the sensitive spring, thereby speeding up the return of the memory shape of the sensitive spring, thereby improving the accuracy of the opening and closing temperature.

In addition, by preventing the non-sensitive spring from contracting while the valve seat is manually closed, the life of the non-sensitive spring can be improved.

In addition, the non-sensitized spring and the sensitive spring are arranged on one side of the valve seat, thereby simplifying the structure of the valve body.

1 is an exploded perspective view of a cartridge for hot water opening and closing valve according to an embodiment of the present invention,

Figure 2 is a combined perspective view of the cartridge for hot water opening and closing valve according to an embodiment of the present invention,

Figure 3 is an exploded cross-sectional view of the cartridge for hot water opening and closing valve according to an embodiment of the present invention,

Figure 4 is a cross-sectional view of the combination of the cartridge for hot water opening and closing valve according to an embodiment of the present invention,

5, 6 and 7 are views showing the operating state of the hot water opening and closing valve is mounted cartridge according to an embodiment of the present invention, respectively,

8 is a cross-sectional view of a conventional hot water switching valve;

9 is an operation state diagram of a conventional hot water opening and closing valve.

Explanation of symbols on the main parts of the drawings

10, 110: cartridge 11: opening and closing guide

12, 113: non-sensitive spring 13, 112: insensitive spring

20: valve body 21: head portion

22: leg 23: support plate

30: pressure block 31: rear stem portion

32: front stem part 33, 111: shaft part

50, 150: valve body 51, 151: flow pipe portion

52, 152: valve seat 53, 153: movement guide tube

60, 160: handle 115: check

Claims (3)

A flow passage branched from the flow passage portion so as to face the valve seat formed in the flow passage portion and the valve seat formed so as to partition the flow passage portion in which the flow passage is formed left and right and the inner flow passage at the inlet side and the outlet side; In the cartridge body having a guide tube portion and the rotary operation portion provided at the end of the movable guide tube portion in the cartridge for hot water opening and closing valve mounted to open and close the valve seat in accordance with the rotation operation of the rotary operation portion, The opening and closing guide is formed in the front circumferential edge toward the inside, the female thread is formed on the inner circumferential surface of the rear end region, and the supporting jaw faces the valve seat and the outer surface is in close contact with the movement guide tube. Tube; A head portion formed to conform to the opening area of the valve seat, a rod-shaped leg portion extending from the head portion, and a support plate detachably coupled to a free end of the leg portion, wherein the head portion faces the valve seat and the leg A valve body attached to the moving guide tube so as to penetrate the front opening of the opening and closing guide tube; A stem portion having a front male thread interacting with the female screw of the opening and closing guide tube on an outer circumferential surface thereof, and a shaft portion extending from a rear surface of the stem portion; A pressing block mounted to the moving guide tube so as to move forward and backward along a longitudinal direction; An insensitive spring mounted to the opening and closing guide tube so as to be interposed between the supporting plate and the supporting jaw; And a sensitive spring, which is made of a unidirectional shape memory alloy material to have an elastic modulus larger than that of the non-sensitive spring, and is mounted on the leg portion so as to be interposed between the head portion and the support jaw. The method of claim 1, The stem portion has a rear stem portion formed on the outer circumferential surface of the rear male thread interacting with the female screw formed on the inner circumferential surface of the end region of the movement guide tube, and has a smaller diameter than the rear stem portion, and the front screw portion is formed on the outer circumferential surface thereof. Cartridge for hot water opening and closing valve comprising a front stem portion. The method according to claim 1 or 2, The head portion cartridge for hot water opening and closing valve, characterized in that the curved area is formed in a hemispherical shape to face the valve seat.