Four-water-channel high-flow constant-temperature valve element

Abstract

The four-water-channel large-flow constant-temperature valve element comprises a shell and a base connected to the bottom of the shell in a screwed mode, a valve rod, an adjusting nut and a piston are sequentially arranged in the shell from top to bottom in a sleeved mode, and a first spring, a jacking column and a clamping spring are sequentially installed on the inner side of the adjusting nut from top to bottom. A temperature sensing rod is connected to the inner side of the piston, a second spring abutting against the piston is installed in the base, and a first cold water inlet channel and a second cold water inlet channel which are communicated with the cold water inlet are formed in the top and the upper portion of the piston respectively. The lower portion and the bottom of the piston are provided with a first hot water inlet channel and a second hot water inlet channel which are communicated with the hot water inlet respectively, and the top and the bottom of the piston are provided with a first O-shaped rubber ring and a second O-shaped rubber ring respectively. The utility model has the advantages of simple structure, large flow of four water channels, stable constant temperature control, smooth water outlet, difficulty in blockage, good usability, good durability, few after-sale problems and long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to a four-water-channel large-flow constant-temperature valve core. Background Art

[0002] With the improvement of people's living standards, thermostatic faucets have become frequently used bathroom products in people's lives. Thermostatic faucets are generally installed with thermostatic valve cores to achieve constant temperature water output. However, traditional thermostatic valve cores generally have a single water inlet and a double spring structure. The water output control is not stable enough during temperature adjustment, and the temperature adjustment is not precise enough, resulting in poor consumer experience. The main deficiencies are as follows: 1. Bathing temperatures vary greatly by region and season. 2. The water output is small, and gas water heaters are prone to flameout. 3. Structural limitations make it easy to scale and cause blockage. 4. The valve core is not easy to use and durable, and there are many after-sales problems. 5. It cannot achieve full hot and cold, and the usage scenarios are limited. Therefore, in order to avoid the shortcomings of the existing technology, it is necessary to improve the existing technology. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and provide a four-water-channel large-flow constant-temperature valve core.

[0004] The utility model is realized through the following technical solutions:

[0005] A four-channel large-flow constant-temperature valve core, comprising a shell and a base screwed to the bottom of the shell, wherein a valve stem, an adjusting nut and a piston are sequentially sleeved in the shell from top to bottom, the bottom of the valve stem is screwed to the top of the adjusting nut, a first spring, a top column and a retaining spring are sequentially installed on the inner side of the adjusting nut from top to bottom, a temperature sensing rod is connected to the inner side of the piston, the first spring presses against the top column, the top column presses against the top of the temperature sensing rod, a second spring presses against the piston is installed in the base, a plurality of cold water inlets are provided at the upper part of the shell, a plurality of hot water inlets are provided at the lower part of the shell, a first cold water inlet channel and a second cold water inlet channel connected to the cold water inlet are respectively provided at the top and upper part of the piston, a first hot water inlet channel and a second hot water inlet channel connected to the hot water inlet are respectively provided at the lower part and bottom of the piston, and a first O-ring and a second O-ring are respectively provided at the top and bottom of the piston.

[0006] Furthermore, a first cold water inlet gap connected to the cold water inlet is formed between the top of the piston and the upper part of the shell, and a second cold water inlet gap connected to the cold water inlet is formed between the upper part of the piston and the upper part of the shell. The upper part of the shell is evenly provided with a number of first cold water inlet holes connected to the first cold water inlet gap, and the upper part of the piston is evenly provided with a number of second cold water inlet holes connected to the second cold water inlet gap.

[0007] Furthermore, a first hot water inlet gap connected to the hot water inlet is formed between the lower portion of the piston and the top of the base, and a second hot water inlet gap connected to the hot water inlet is formed between the bottom of the piston and the upper portion of the base. A number of first hot water inlet holes connected to the first hot water inlet gap are evenly distributed on the lower portion of the piston, and a number of second hot water inlet holes connected to the second hot water inlet gap are evenly distributed on the upper portion of the base.

[0008] Furthermore, a water passage cavity is provided on the inner side of the piston, and a water mixing cavity connected to the water passage cavity is provided on the inner side of the base.

[0009] Furthermore, a retaining ring is provided on the upper part of the valve stem to press against the top of the shell, a wear-resistant ring is provided at the contact point between the upper part of the valve stem and the inner side of the top of the shell, and a third O-ring is provided on the outer side of the middle part of the valve stem.

[0010] Furthermore, a fourth O-ring is sleeved on the outer side of the shell, and a fifth O-ring is sleeved on the outer side of the base.

[0011] Furthermore, a sixth O-type rubber ring is sleeved on the outer side of the upper portion of the piston, a seventh O-type rubber ring is sleeved on the outer side of the middle portion of the piston, and an eighth O-type rubber ring is sleeved on the outer side of the lower portion of the piston.

[0012] Furthermore, the shell is a plastic shell.

[0013] Furthermore, the shell is a copper shell, and a connector is provided on the upper part of the shell.

[0014] Furthermore, the outer sides of the cold water inlet and the hot water inlet are both covered with filter screens.

[0015] Compared with the prior art, the utility model is provided with a plurality of cold water inlets on the upper part of the shell, and a plurality of hot water inlets on the lower part of the shell. The top and the upper part of the piston are respectively provided with a first cold water inlet channel and a second cold water inlet channel connected to the cold water inlet, and the lower part and the bottom of the piston are respectively provided with a first hot water inlet channel and a second hot water inlet channel connected to the hot water inlet. The top and the bottom of the piston are respectively provided with a first O-type rubber ring and a second O-type rubber ring, so that the valve core has two cold water channels and two hot water channels, and the cold and hot water control of the top and the bottom of the piston are in soft contact, the control is stable, the valve core is easy to use and durable, and there are few after-sales problems. It has the following beneficial effects:

[0016] 1. The temperature range of the constant temperature valve core can be set, which solves the regional and seasonal differences in bathing temperature and realizes full-cold and full-hot multi-purpose and multi-scenario applications. The constant temperature valve core can set 3 temperature sections: below 36° is the low-temperature cleaning temperature range (marked in blue, the temperature range angle is about 120°), 36-44° is the comfortable temperature range (marked in green, the temperature range angle is about 90°, consumers can quickly adjust the optimal water outlet temperature in the comfortable temperature range according to the ambient temperature difference), and above 45° is the high-temperature multi-purpose area (marked in red, the temperature range angle is 120°). The product can approach the hot water source temperature to the extreme, thus giving it a high-temperature multi-purpose function.

[0017] 2. This valve core has two cold water channels and two hot water channels, for a total of four channels. Given the same cross-sectional area and opening, increasing the number of channels increases flow rate. This product can exceed 15L / min at 1kg of water pressure, effectively meeting the safe flow rate of gas water heaters while preventing the activation of the temperature protection function and thus preventing the gas water heater from stalling.

[0018] 3. By increasing the water channel, the water supply ratio inside and outside the valve core cavity is ensured to be close, thereby ensuring the impact force and high mixing speed of the water flow in the valve body, increasing the scouring of the inner wall of the valve core cavity and reducing the static water flow area and inventory of the valve core cavity structure, thereby greatly reducing the adsorption and precipitation of calcium and magnesium ions, and at the same time increasing the relative opening of the water channel, the passage rate of tiny particles is also greatly improved, thereby greatly reducing blockage.

[0019] 4. The life test of traditional thermostatic valve core is 30,000 times, while the life test of this product starts from 60,000 times (60,000 times for medium temperature test and 10,000 times for high temperature test), which greatly protects the consumer's experience and rights.

[0020] 5. The exterior of the valve core maintains the traditional dual water channel, while the inner cavity derives an original four-water channel structure with dual cold water and dual hot water, which greatly improves the versatility of the wide core and reduces the complexity of the faucet shell structure. In addition, the dual-spring ratio is far more reliable and controllable than the multi-spring ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of the utility model with a four-channel large-flow constant-temperature valve core having a plastic housing;

[0023] Figure 2 This is a structural exploded view of the utility model when the outer shell of the four-channel large-flow constant-temperature valve core is a plastic shell;

[0024] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of the utility model when the housing of the four-channel large-flow constant-temperature valve core is a plastic housing;

[0025] Figure 4 This is a schematic diagram of the structure of the utility model with a four-channel large-flow constant-temperature valve core having a copper shell;

[0026] Figure 5 This is a structural exploded view of the utility model with a four-channel large-flow constant-temperature valve core housing made of copper;

[0027] Figure 6 This is a schematic diagram of the longitudinal cross-sectional structure of the utility model with four water channels, large flow and constant temperature valve core when the shell is a copper shell.

[0028] In the figure: 1-housing; 2-base; 3-valve stem; 4-adjusting nut; 5-piston; 6-first spring; 7-top column; 8-circlip; 9-temperature sensing rod; 10-second spring; 11-cold water inlet; 12-hot water inlet; 13-first cold water inlet channel; 14-second cold water inlet channel; 15-first hot water inlet channel; 16-second hot water inlet channel; 17-first O-ring; 18-second O-ring; 19-first cold water inlet gap; 20-second cold water inlet gap Gap; 21-first cold water inlet hole; 22-second cold water inlet hole; 23-first hot water inlet gap; 24-second hot water inlet gap; 25-first hot water inlet hole; 26-second hot water inlet hole; 27-water passage chamber; 28-mixing chamber; 29-snapping ring; 30-wear-resistant ring; 31-third O-ring; 32-fourth O-ring; 33-fifth O-ring; 34-sixth O-ring; 35-seventh O-ring; 36-eighth O-ring; 37-connector; 38-filter. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1 to 6The utility model is shown as a four-channel large-flow constant-temperature valve core, including a shell 1 and a base 2 screwed to the bottom of the shell 1. The shell 1 is sequentially sleeved with a valve stem 3, an adjusting nut 4 and a piston 5 from top to bottom. The bottom of the valve stem 3 is screwed to the top of the adjusting nut 4. The inner side of the adjusting nut 4 is sequentially installed with a first spring 6, a top column 7 and a retaining spring 8 from top to bottom. The inner side of the piston 5 is connected to a temperature sensing rod 9. The first spring 6 abuts against the top column 7, and the top column 7 abuts against the top of the temperature sensing rod 9. The base 2 is installed with a piston 5 The second spring 10 is provided with a plurality of cold water inlets 11 on the upper portion of the shell 1, and a plurality of hot water inlets 12 on the lower portion of the shell 1. The top and upper portion of the piston 5 are respectively provided with a first cold water inlet channel 13 and a second cold water inlet channel 14 communicating with the cold water inlet 11, and the lower portion and bottom portion of the piston 5 are respectively provided with a first hot water inlet channel 15 and a second hot water inlet channel 16 communicating with the hot water inlet 12. The top and bottom portion of the piston 5 are respectively provided with a first O-type rubber ring 17 and a second O-type rubber ring 18. A plurality of cold water inlets 11 are provided through the upper portion of the housing 1, and a plurality of hot water inlets 12 are provided at the lower portion of the housing 1. A first cold water inlet channel 13 and a second cold water inlet channel 14 communicating with the cold water inlet 11 are respectively provided at the top and the upper portion of the piston 5. A first hot water inlet channel 15 and a second hot water inlet channel 16 communicating with the hot water inlet 12 are respectively provided at the lower portion and the bottom portion of the piston 5. A first O-type rubber ring 17 and a second O-type rubber ring 18 are respectively provided at the top and the bottom portion of the piston 5, so that the valve core has two cold water channels and two hot water channels, and the cold and hot water control at the top and the bottom of the piston 5 are in soft contact, the control is stable, the valve core is easy to use and durable, and there are few after-sales problems, which has the following beneficial effects:

[0031] 1. The temperature range of the constant temperature valve core can be set, which solves the regional and seasonal differences in bathing temperature and realizes full-cold and full-hot multi-purpose and multi-scenario applications. The constant temperature valve core can set 3 temperature sections: below 36° is the low-temperature cleaning temperature range (marked in blue, the temperature range angle is about 120°), 36-44° is the comfortable temperature range (marked in green, the temperature range angle is about 90°, consumers can quickly adjust the optimal water outlet temperature in the comfortable temperature range according to the ambient temperature difference), and above 45° is the high-temperature multi-purpose area (marked in red, the temperature range angle is 120°). The product can approach the hot water source temperature to the extreme, thus giving it a high-temperature multi-purpose function.

[0032] 2. This valve core has two cold water channels and two hot water channels, for a total of four channels. Given the same cross-sectional area and opening, increasing the number of channels increases flow rate. This product can exceed 15L / min at 1kg of water pressure, effectively meeting the safe flow rate of gas water heaters while preventing the activation of the temperature protection function and thus preventing the gas water heater from stalling.

[0033] 3. By increasing the water channel, the water supply ratio inside and outside the valve core cavity is ensured to be close, thereby ensuring the impact force and high mixing speed of the water flow in the valve body, increasing the scouring of the inner wall of the valve core cavity and reducing the static water flow area and inventory of the valve core cavity structure, thereby greatly reducing the adsorption and precipitation of calcium and magnesium ions, and at the same time increasing the relative opening of the water channel, the passage rate of tiny particles is also greatly improved, thereby greatly reducing blockage.

[0034] 4. The life test of traditional thermostatic valve core is 30,000 times, while the life test of this product starts from 60,000 times (60,000 times for medium temperature test and 10,000 times for high temperature test), which greatly protects the consumer's experience and rights.

[0035] 5. The exterior of the valve core maintains the traditional dual water channel, while the inner cavity derives an original four-water channel structure with dual cold water and dual hot water, which greatly improves the versatility of the wide core and reduces the complexity of the faucet shell structure. In addition, the dual-spring ratio is far more reliable and controllable than the multi-spring ratio.

[0036] A first cold water inlet gap 19 connected to the cold water inlet 11 is formed between the top of the piston 5 and the upper part of the shell 1, and a second cold water inlet gap 20 connected to the cold water inlet 11 is formed between the upper part of the piston 5 and the upper part of the shell 1. A plurality of first cold water inlet holes 21 connected to the first cold water inlet gap 19 are evenly distributed on the upper part of the shell 1, and a plurality of second cold water inlet holes 22 connected to the second cold water inlet gap 20 are evenly distributed on the upper part of the piston 5, so that the water inlet control of the two cold water channels is more stable and the water inlet flow rate is larger.

[0037] A first hot water inlet gap 23 communicating with the hot water inlet 12 is formed between the lower portion of the piston 5 and the top of the base 2, and a second hot water inlet gap 24 communicating with the hot water inlet 12 is formed between the bottom of the piston 5 and the upper portion of the base 2. A plurality of first hot water inlet holes 25 communicating with the first hot water inlet gap 23 are evenly distributed on the lower portion of the piston 5, and a plurality of second hot water inlet holes 26 communicating with the second hot water inlet gap 24 are evenly distributed on the upper portion of the base 2, so that the water inlet control of the two hot water channels is more stable and the water inlet flow rate is larger.

[0038] A water passage chamber 27 is provided on the inner side of the piston 5, and a water mixing chamber 28 is provided on the inner side of the base 2 which is connected to the water passage chamber 27, so that the inflow of hot and cold water is smoother, the mixing is more uniform, and the water output is more stable.

[0039] The upper part of the valve stem 3 is provided with a retaining ring 29 that presses against the top of the shell 1 to prevent the valve stem 3 from moving up and down and affecting the control of the water outlet temperature by the temperature sensing rod 9. A wear-resistant ring 30 is provided at the contact point between the upper part of the valve stem 3 and the inner side of the top of the shell 1 to reduce the friction between the valve stem 3 and the shell 1 so that the valve stem 3 can rotate smoothly relative to the shell 1. A third O-ring 31 is provided on the outer side of the middle part of the valve stem 3 to prevent water from leaking from the contact point between the valve stem 3 and the shell 1.

[0040] A fourth O-ring 32 is provided on the outer side of the housing 1, and a fifth O-ring 33 is provided on the outer side of the base 2 to prevent water from leaking from the upper and lower parts of the thermostatic valve core after the valve core is installed. At the same time, the fourth O-ring 32 in the middle can prevent hot and cold water from mixing.

[0041] The outer sleeve of the upper part of the piston 5 is provided with a sixth O-ring 34 to prevent the two-way cold water inlet from mixing, the outer sleeve of the middle part of the piston 5 is provided with a seventh O-ring 35 to prevent the cold and hot water from mixing, and the outer sleeve of the lower part of the piston 5 is provided with an eighth O-ring 36 to prevent the two-way hot water inlet from mixing.

[0042] As a specific implementation, the housing 1 is a plastic housing with low manufacturing cost.

[0043] As another specific embodiment, the housing 1 is a copper housing, and a connector 37 is provided on the upper portion of the housing 1 , which has a stable structure and good resistance to thermal changes.

[0044] The outsides of the cold water inlet 11 and the hot water inlet 12 are both covered with a filter 38, which filters dirt in the water flow to prevent the dirt from entering the valve core and causing blockage.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A four-channel high-flow constant-temperature valve core, characterized by: The cam is secured to the bottom of the valve body with a spring which is secured to the bottom of the valve body, the cam being secured to the bottom of the valve body with a spring which is secured to the bottom of the valve body.

2. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: A first cold water inlet gap connected to the cold water inlet is formed between the top of the piston and the upper part of the shell, and a second cold water inlet gap connected to the cold water inlet is formed between the upper part of the piston and the upper part of the shell. The upper part of the shell is evenly provided with a plurality of first cold water inlet holes connected to the first cold water inlet gap, and the upper part of the piston is evenly provided with a plurality of second cold water inlet holes connected to the second cold water inlet gap.

3. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: A first hot water inlet gap connected to the hot water inlet is formed between the lower part of the piston and the top of the base, and a second hot water inlet gap connected to the hot water inlet is formed between the bottom of the piston and the upper part of the base. A plurality of first hot water inlet holes connected to the first hot water inlet gap are evenly distributed on the lower part of the piston, and a plurality of second hot water inlet holes connected to the second hot water inlet gap are evenly distributed on the upper part of the base.

4. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: A water passage cavity is provided on the inner side of the piston, and a water mixing cavity communicated with the water passage cavity is provided on the inner side of the base.

5. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: The upper part of the valve stem is provided with a clamping ring that presses against the top of the shell, the contact point between the upper part of the valve stem and the inner side of the top of the shell is provided with a wear-resistant ring, and the outer side of the middle part of the valve stem is provided with a third O-ring.

6. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: The outer side of the shell is covered with a fourth O-shaped rubber ring, and the outer side of the base is covered with a fifth O-shaped rubber ring.

7. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: The outer side of the upper portion of the piston is covered with a sixth O-type rubber ring, the outer side of the middle portion of the piston is covered with a seventh O-type rubber ring, and the outer side of the lower portion of the piston is covered with an eighth O-type rubber ring.

8. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: The shell is a plastic shell.

9. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: The shell is a copper shell, and a connector is provided on the upper part of the shell.

10. The four-channel high-flow constant-temperature valve core according to claim 1, characterized in that: The outer sides of the cold water inlet and the hot water inlet are both covered with filter screens.

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