CN213017858U

CN213017858U - Thermostatic valve core and water heater

Info

Publication number: CN213017858U
Application number: CN202021410823.9U
Authority: CN
Inventors: 吴育志; 林凯; 刘佑成
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-04-20
Anticipated expiration: 2030-07-17

Abstract

The application provides a thermostatic cartridge and water heater, thermostatic cartridge includes casing, plunger and temperature package. An inner cavity is formed in the shell, a cold water inlet and a hot water outlet are formed in the upper end and the lower end of the inner cavity respectively, a first sealing ring is arranged above the cold water inlet, and a second sealing ring is arranged below the hot water inlet. And a mixed water outlet channel is arranged at the lower end of the inner cavity. The thermal bulb penetrates through and is fixedly installed in the plunger, the thermal bulb and the plunger form a floating part, the floating part can be installed in the inner cavity in an up-and-down floating mode, and compression springs are arranged at two ends of the floating part and two ends of the inner cavity. The floating range of the plunger piston is from the first sealing ring to the second sealing ring, and the temperature sensing head of the bulb is arranged at the mixed water outlet channel. When the hot water stops, the thermal bulb contracts, the cold water surface of the plunger can be completely sealed with the first sealing ring, and the cold water is cut off, or when the cold water stops, the thermal bulb expands, the hot water surface of the plunger can be quickly sealed with the second sealing ring, and the hot water is cut off.

Description

Thermostatic valve core and water heater

Technical Field

The utility model relates to a case technical field especially relates to a thermostatic cartridge and water heater.

Background

The thermostatic valve core is a device which automatically adjusts the mixing proportion of cold water and hot water, so that the temperature of the mixed water can be automatically kept at a set temperature.

At present, most parts of thermostatic valve core in the market can appear the bite after using a period of time, rotate the difficulty, the problem of unable pivoted even, its reason is mainly, traditional thermostatic valve core does not do sealed design on the transmission thread, it is harder at quality of water, perhaps the place that quality of water is relatively poor, thermostatic valve core just causes the bite because incrustation scale and silt problem easily, especially thermostatic valve core cold water end, impurity or silt particle in the cold water cause thermostatic valve core cold water end to block, unable normal use and temperature regulation. Moreover, most of thermostatic valve cores on the market are too simple in design of a shell water outlet, only have one straight-through hole, and cannot fully mix cold water and hot water, so that the outlet water temperature is unstable, fluctuation is large, and even the thermostatic performance is lost.

Disclosure of Invention

The utility model provides a solve above-mentioned technical problem, the first aspect provides a thermostatic cartridge, including casing, plunger and bulb.

Specifically, an inner cavity is formed in the shell, a cold water inlet and a hot water inlet are respectively formed in the side portions of the upper end and the lower end of the inner cavity, a first sealing ring is arranged above the cold water inlet, and a second sealing ring is arranged below the hot water inlet. The lower end of the inner cavity is provided with a mixed water outlet channel, and cold water and hot water entering from the cold water inlet and the hot water inlet are uniformly mixed and then flow out.

The temperature bulb penetrates through and is fixedly installed in the plunger, a temperature sensing head of the temperature bulb is exposed out of the bottom of the plunger, the temperature bulb and the plunger form a floating piece, the floating piece can be installed in the inner cavity in a vertically floating mode, and compression springs are arranged at two ends of the floating piece and two ends of the inner cavity. The floating range of the plunger piston is from the first sealing ring to the second sealing ring, and the temperature sensing head of the thermometer bulb is arranged at the mixed water outlet channel and can sense the temperature of mixed water in real time.

Preferably, the thermostatic cartridge comprises a guide member comprising a splined rod, a guide rod.

The handle seat is installed to the upper end of casing, the handle seat is equipped with the intercommunication the through-hole of inner chamber, the through-hole divides into two sections, is the spline pole mounting hole of upper portion and the guide bar mounting hole of lower part respectively.

The spline rod is rotatably and fixedly installed in the spline rod mounting hole, the head of the spline rod extends out of the handle seat and is used for mounting an adjusting handle, and the connector at the tail of the spline rod extends to the guide rod mounting hole.

The peripheral outline of the guide rod is consistent with the cross section of the guide rod mounting hole and is non-circular, the guide rod can be arranged in the guide rod mounting hole in a vertically moving mode, and the top of the guide rod is connected with the connector of the spline rod through threads. The compression spring comprises a protection spring and a working spring. The bottom of the guide rod is connected with the top end of the thermal bulb through the protection spring.

Preferably, the week portion of guide bar is equipped with the sealing washer mounting groove, install the third sealing washer in the sealing washer mounting groove, through the third sealing washer is isolated the connector and the inner chamber of spline pole prevent that water from getting into the threaded connection department of spline pole and guide bar, solve traditional thermostatic valve core and rotate the difficulty because of the adjustment handle that impurity problem caused, adjust the problem of inefficacy.

Preferably, the connector of spline pole is the screw rod, the top of guide bar is the thread groove.

Preferably, the bottom of guide bar is equipped with the mounting groove, pack into in the mounting groove in proper order protection spring, kicking block and C type ring, the embedding of C type ring the C type ring mounting groove and the restriction of the notch department of mounting groove protection spring and kicking block are in the mounting groove.

Preferably, one side of the top block facing outwards is provided with a limiting groove, and the top end of the thermal bulb is inserted into the limiting groove, so that the matching precision is improved.

Preferably, the lower end of the shell is provided with a base, and the middle part of the base is provided with a mixed water outlet communicated with the mixed water outlet channel.

Preferably, the inside of base is equipped with the intercommunication the ring channel of inner chamber, operating spring installs in the ring channel, one end support by the bottom of ring channel, the other end supports by the bottom of plunger.

Preferably, the mixed water outlet channel is in a step shape, so that cold water and hot water can be uniformly mixed, and the sensing precision of the temperature bulb on the temperature of the mixed water is improved.

In a second aspect, a water heater is provided, comprising a thermostatic cartridge as described above.

From the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. by arranging the first sealing ring and the second sealing ring, the sealing precision of the plunger on the cold water inlet and the hot water inlet is improved; when hot water is suddenly cut off in the using process, the thermal bulb contracts, the cold water surface of the plunger can be well sealed with the first sealing ring, cold water is quickly cut off from entering, water dripping is enabled to be leakproof, and the phenomenon that the body is uncomfortable due to the sudden cold water when a shower is taken in winter is avoided; or when cold water is suddenly cut off in the using process, the thermal bulb is heated to expand, the hot water surface of the plunger can be quickly sealed with the second sealing ring, the hot water inlet is cut off, and a consumer is prevented from being scalded;

2. the third sealing ring is arranged on the periphery of the guide rod to isolate the connector and the inner cavity of the spline rod, so that water is prevented from entering the threaded connection part of the spline rod and the guide rod, and the problems of difficult rotation and adjustment failure of an adjusting handle caused by impurities of the traditional thermostatic valve core are solved;

3. the stepped mixed water outlet channel is arranged, so that the mixing effect of cold water and hot water at the bulb is improved, and the stability of the water outlet temperature is improved.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it.

Wherein:

fig. 1 is a sectional view of the thermostatic cartridge of the present invention;

FIG. 2 is an exploded view of the thermostatic cartridge of the present invention;

FIG. 3 is an isometric view of the handle seat of the thermostatic cartridge of the present invention;

fig. 4 is an axial side view of the base of the thermostatic cartridge of the present invention;

the designations in fig. 1 to 4 are respectively: the device comprises a shell 1, a cold water inlet 11, a hot water inlet 12, a first sealing ring 13, a second sealing ring 14, a mixed water outlet channel 15, a handle seat 16, a top block 17, a base 18, a plunger 2, a thermal bulb 3, a spline rod 41, a guide rod 42, a third sealing ring 43, a protection spring 51 and a working spring 52.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The first embodiment is as follows:

referring to fig. 1 to 4, a thermostatic valve cartridge includes a housing 1, a plunger 2, a bulb 3, and a guide member.

Specifically, an inner cavity is arranged in the shell 1, the side parts of the upper end and the lower end of the inner cavity are respectively provided with a cold water inlet 11 and a hot water inlet 12, a first sealing ring 13 is arranged above the cold water inlet 11, and a second sealing ring 14 is arranged below the hot water inlet. The lower end of the inner cavity is provided with a mixed water outlet channel 15, and cold water and hot water entering from the cold water inlet 11 and the hot water inlet 12 are uniformly mixed and then flow out.

The temperature bulb 3 penetrates through and is fixedly installed in the plunger 2, the temperature sensing head of the temperature bulb 3 is exposed out of the bottom of the plunger 2, the temperature bulb 3 and the plunger 2 form a floating part, the floating part can be installed in the inner cavity in a vertically floating mode, and compression springs are arranged at two ends of the floating part and two ends of the inner cavity. The floating range of the plunger 2 is from the first sealing ring 13 to the second sealing ring 14, and the temperature sensing head of the bulb 3 is arranged at the mixed water outlet channel 15, in the embodiment, the mixed water outlet channel 15 is in a step shape, so that cold water and hot water can be uniformly mixed, and the sensing precision of the bulb 3 on the temperature of the mixed water is improved.

According to the application, the first sealing ring 13 and the second sealing ring 14 are arranged, so that the sealing precision of the plunger 2 to the cold water inlet 11 and the hot water inlet is improved, the thermal bulb 3 contracts when hot water is cut off suddenly in the using process, the cold water surface of the plunger 2 can be well sealed with the first sealing ring 13, the cold water inlet is cut off quickly, water dripping is prevented from leaking, and discomfort caused by sudden cold water when a shower is taken in winter is avoided; or when the hot water bottle is suddenly cut off water when in use, the thermal bulb 3 is heated to expand, the hot water surface of the plunger 2 can be quickly sealed with the second sealing ring 14, the hot water is cut off from entering, and the consumer is prevented from being scalded.

In this embodiment, the guide member includes a spline rod 41 and a guide rod 42.

The handle seat 16 is installed at the upper end of the shell 1, the handle seat 16 is provided with a through hole communicated with the inner cavity, and the through hole is divided into two sections, namely a spline rod 41 mounting hole at the upper part and a guide rod 42 mounting hole at the lower part.

The spline rod 41 is rotatably and fixedly installed in the mounting hole of the spline rod 41, the head of the spline rod 41 extends out of the handle seat 16 for installing an adjusting handle, and the connector at the tail of the spline rod 41 extends towards the mounting hole of the guide rod 42.

The peripheral contour of the guide rod 42 is identical to the cross section of the installation hole of the guide rod 42 and is hexagonal, the guide rod 42 can be vertically moved and arranged in the installation hole of the guide rod 42, and the top of the guide rod 42 is connected with the connector of the spline rod 41 through threads. The compression spring includes a protection spring 51 and a working spring 52. The bottom of the guide rod 42 is connected with the top end of the thermal bulb 3 through the protection spring 51. Specifically, the bottom of guide bar 42 is equipped with the mounting groove, pack into in the mounting groove in proper order protection spring 51, kicking block 17 and C type ring, the embedding of C type ring the C type ring mounting groove and the restriction of the notch department of mounting groove protection spring 51 and kicking block 17 are in the mounting groove. The one side that kicking block 17 is outwards equipped with the spacing groove, the top of bulb 3 inserts the spacing groove improves the cooperation precision.

In this embodiment, the week portion of guide bar 42 is equipped with the sealing washer mounting groove, install third sealing washer 43 in the sealing washer mounting groove, through third sealing washer 43 is isolated the connector and the inner chamber of spline rod 41 prevent that water from getting into the threaded connection department of spline rod 41 and guide bar 42, solve traditional thermostatic valve core because of the adjustment handle rotation difficulty that impurity problem caused, adjust the problem of inefficacy.

The lower end of the shell 1 is provided with a base 18, and the middle part of the base 18 is provided with a mixed water outlet communicated with the mixed water outlet channel 15. The base 18 is also internally provided with an annular groove communicated with the inner cavity, the working spring 52 is arranged in the annular groove, one end of the working spring is abutted against the bottom of the annular groove, and the other end of the working spring is abutted against the bottom of the plunger 2.

The application provides a thermostatic cartridge during operation, it is colder when the mixed water temperature, 3 shrinkage on the thermal bulb, the working spring 52 below the floating part promotes whole floating part and moves upward this moment, at this moment, the cold water face at 2 tops of plunger and the interval of first sealing washer 13 reduce, the hot water face of 2 bottoms of plunger and the interval grow of second sealing washer 14, the inhalant canal of cold water inlet 11 reduces promptly, the inhalant canal grow of hot water inlet, realize that the cold water inflow becomes less, the hot water inflow becomes more, the temperature of mixed water improves.

When the temperature of the mixed water is higher, the temperature bulb 3 expands thermally, overcomes the elasticity of the working spring 52, and the stress condition of the compression spring and the moving condition of the floating piece are opposite to the working conditions, so that the water inlet amount of the cold water is increased, the water inlet amount of the hot water is decreased, and the temperature of the mixed water is reduced.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.

Claims

1. A thermostatic valve core is characterized by comprising a shell, a plunger and a temperature bulb;

an inner cavity is arranged in the shell, a cold water inlet and a hot water inlet are respectively arranged on the side parts of the upper end and the lower end of the inner cavity, a first sealing ring is arranged above the cold water inlet, and a second sealing ring is arranged below the hot water inlet; a mixed water outlet channel is arranged at the lower end of the inner cavity;

the temperature bulb penetrates through and is fixedly installed in the plunger, a temperature sensing head of the temperature bulb is exposed out of the bottom of the plunger, the temperature bulb and the plunger form a floating piece, the floating piece can be installed in the inner cavity in a vertically floating mode, and compression springs are arranged at two ends of the floating piece and two ends of the inner cavity; the floating range of the plunger piston is from the first sealing ring to the second sealing ring, and the temperature sensing head of the bulb is arranged at the mixed water outlet channel.

2. A thermostatic cartridge according to claim 1, comprising a guide member, the guide member comprising a splined rod, a guide rod; a handle seat is mounted at the upper end of the shell, a through hole communicated with the inner cavity is formed in the handle seat, and the through hole is divided into two sections which are respectively a spline rod mounting hole in the upper portion and a guide rod mounting hole in the lower portion; the spline rod is rotatably and fixedly installed in the spline rod installation hole, the head of the spline rod extends out of the handle seat, and the connector at the tail of the spline rod extends to the guide rod installation hole; the peripheral outline of the guide rod is consistent with the cross section of the guide rod mounting hole, the guide rod can be arranged in the guide rod mounting hole in a vertically moving mode, and the top of the guide rod is connected with the connector of the spline rod through threads; the compression spring comprises a protection spring and a working spring; the bottom of the guide rod is connected with the top end of the thermal bulb through the protection spring.

3. The thermostatic cartridge according to claim 2, wherein a sealing ring mounting groove is formed in a peripheral portion of the guide rod, a third sealing ring is mounted in the sealing ring mounting groove, and the connector of the spline rod is isolated from the inner cavity by the third sealing ring.

4. The thermostatic cartridge according to claim 2, wherein the coupling head of the splined rod is a threaded rod and the top of the guide rod is a threaded groove.

5. The thermostatic cartridge according to claim 2, wherein a mounting groove is formed in a bottom of the guide rod, the protection spring, the top block and the C-shaped ring are sequentially installed in the mounting groove, and the C-shaped ring is inserted into the C-shaped ring mounting groove at the notch of the mounting groove and limits the protection spring and the top block to be located in the mounting groove.

6. The thermostatic cartridge according to claim 5, wherein a limiting groove is formed in an outward surface of the top block, and a top end of the thermal bulb is inserted into the limiting groove.

7. The thermostatic cartridge according to claim 2, wherein a base is mounted at a lower end of the housing, and a mixing outlet communicated with the mixing outlet passage is formed in the middle of the base.

8. A thermostatic cartridge according to claim 7 wherein the base has an annular groove therein communicating with the chamber, the operating spring being mounted in the annular groove with one end abutting the bottom of the annular groove and the other end abutting the bottom of the plunger.

9. A thermostatic cartridge according to claim 1, wherein the mixed water outlet passage is stepped.

10. A water heater comprising a thermostatic cartridge as claimed in any one of claims 1 to 9.