WO2022199103A1 - Flexible seal plunger - Google Patents

Flexible seal plunger Download PDF

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Publication number
WO2022199103A1
WO2022199103A1 PCT/CN2021/134735 CN2021134735W WO2022199103A1 WO 2022199103 A1 WO2022199103 A1 WO 2022199103A1 CN 2021134735 W CN2021134735 W CN 2021134735W WO 2022199103 A1 WO2022199103 A1 WO 2022199103A1
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WIPO (PCT)
Prior art keywords
plunger
sealing
main body
soft
sealing ring
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PCT/CN2021/134735
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French (fr)
Chinese (zh)
Inventor
杨和军
李晨
张晓�
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台州市国人温控卫浴科技有限公司
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Publication of WO2022199103A1 publication Critical patent/WO2022199103A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures

Definitions

  • the utility model belongs to the field of thermostatic valve cores and relates to a plunger, in particular to a soft sealing plunger.
  • thermostatic valve cores are widely used in thermostatic water heaters and thermostatic faucets.
  • the thermostatic regulating valve core can automatically balance the water pressure of cold water and hot water in a very short time, so that the mixed water
  • the temperature can be automatically maintained at the set temperature to keep the water temperature stable.
  • the plunger is located in the thermostatic valve, and cooperates with the temperature sensing element to act as a core device for adjusting the ratio of cold and heat.
  • the plunger can close another way of water under the action of the temperature sensing element to make the thermostatic valve.
  • the core does not contain water to prevent scalding or frostbite on the human body.
  • the upper and lower ends of the traditional thermostatic plunger are made of rigid materials, and it is not easy to fit tightly with the sealing surface of the valve core. In the case of cold and hot water failure, it is difficult to achieve the effect of completely cutting off the water, and the upper and lower end surfaces of the traditional thermostatic valve plunger
  • the flatness processing requirements between the sealing surfaces corresponding to the valve body are high, and the flatness of the sealing surface of the valve body will decrease after long-term operation.
  • This utility model is to solve the above problems existing in the prior art, to provide a plunger sealing surface composed of flexible materials, so as to achieve a soft sealing plunger with better sealing performance and longer service life.
  • a soft sealing plunger characterized in that it comprises a plunger body and a sealing ring composed of a flexible material, and the upper and lower ends of the plunger body are provided with for Corresponding to the placement groove in which the sealing ring is embedded, the plunger body is provided with a water barrier ring installation groove along its circumferential direction to separate cold and hot water, and the plunger body is provided with a thread with a temperature sensing element. For the connected installation screw grooves, the plunger body is also provided with a plurality of water passage holes distributed at intervals in the circumferential direction.
  • the sealing rings located at the upper and lower ends of the plunger are an upper sealing ring and a lower sealing ring respectively, and the upper end surface of the upper sealing ring forms an upper seal with a soft sealing effect The lower end surface of the lower sealing ring forms a lower sealing surface with a soft sealing effect.
  • the plunger body and the sealing ring are integrally formed to form an integral plunger element.
  • each of the placement grooves has a plurality of fixing holes that communicate with the outside world.
  • the sealing ring is made of soft rubber.
  • the soft sealing plunger has the following advantages:
  • the sealing ring arranged symmetrically up and down in the plunger body is made of soft rubber, and is integrally formed with the plunger body to form an integral plunger element, which reduces the wear degree of the plunger when the plunger moves up and down in the valve core, thereby improving the the service life of the plunger;
  • the sealing rings at the upper and lower ends of the plunger are elastically deformed under the action of external force, forming a flexible sealing effect, so that the sealing ring can completely fit the relatively uneven upper and lower parts of the valve core.
  • the elastic deformation disappears, and the upper sealing ring and the lower sealing ring both return to their original states, so that the sealing performance of the plunger is reset, and the water-passing gap between the plunger and the valve core remains unchanged, which is relatively simple compared to the traditional one.
  • Rigid sealing plungers constructed of material provide higher stability, better sealing and longer service life.
  • Figure 1 is a three view of the present soft seal plunger.
  • Figure 2 is the three-dimensional structure of the soft sealing plunger with the upper and lower sealing rings removed.
  • FIG. 3 is a schematic diagram of the application scenario of the soft sealing plunger.
  • plunger body 1, placement groove; 3, water barrier installation groove; 4, installation screw groove; 5, water hole; 6a, upper seal ring; 6b, lower seal ring; 7, fixed 8.
  • the soft sealing plunger includes a plunger body 1 and a sealing ring made of a flexible material.
  • the upper and lower ends of the plunger body 1 are provided with corresponding sealing rings for injection and embedding
  • the installation groove 2 the plunger body 1 is provided with a water barrier installation groove 3 that separates cold and hot water along its circumferential direction, and the plunger body 1 is provided with a mounting screw groove 4 that is threadedly connected to the temperature sensing element,
  • the plunger body 1 is also provided with a plurality of water passage holes 5 distributed at intervals in the circumferential direction.
  • the sealing rings located at the upper and lower ends of the plunger are respectively an upper sealing ring 6a and a lower sealing ring 6b, the upper end surface of the upper sealing ring 6a forms an upper sealing surface 8 with a soft sealing effect, and the lower end surface of the lower sealing ring 6b The lower sealing surface 9 having a soft sealing effect is formed.
  • the plunger body 1 and the sealing ring are integrally formed to form an integral plunger element.
  • fixing holes 7 that communicate with the outside world in the placement groove 2, and the setting of the fixing holes 7 makes the upper and lower sealing rings 6b and the plunger body produce more contact surfaces, increasing the overall stability of the plunger. to prevent the sealing ring from falling off, and to provide a soft rubber molding inlet.
  • the sealing ring is made of soft rubber, and the injection molding materials of two different materials are injected into the same mold in sequence, so that the product is integrated.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

A flexible seal plunger, which belongs to the field of thermostatic valve cartridges, and solves the problem of it being difficult to achieve, in the case of a cold and hot water failure, the effect of completely cutting off water due to the fact that upper and lower end faces of an existing plunger are made of rigid materials and not easy to closely fit with sealing faces of a valve cartridge. The flexible seal plunger comprises a plunger main body, and seal rings made of a flexible material, wherein the upper and lower ends of the plunger main body are both provided with placement slots for allowing corresponding seal rings to be embedded therein; the plunger main body is provided with a water separation ring installation slot in the circumferential direction thereof; the plunger main body is internally provided with an installation thread groove, which is in threaded connection with a temperature-sensing element; and the plunger main body is also internally provided with several water passing holes distributed at intervals in the circumferential direction. The sealing rings, which are made of a flexible material and located at upper and lower end faces of the flexible seal plunger, achieve a flexible sealing effect, so that the seal rings are fully fitted with upper and lower sealing faces of a valve cartridge that are relatively uneven, such that the plunger has higher stability, a better sealing performance and a longer service life.

Description

一种软密封柱塞A soft sealing plunger 技术领域technical field
本实用新型属于恒温阀芯领域，涉及一种柱塞，特别涉及一种软密封柱塞。The utility model belongs to the field of thermostatic valve cores and relates to a plunger, in particular to a soft sealing plunger.
背景技术Background technique
作为水温调节的核心装置，恒温阀芯广泛应用于恒温热水器和恒温水龙头中。当热水或冷水的水压突然发生变化时，或者热水的温度突然发生变化的时候，恒温调节阀芯即可在很短的时间内自动平衡冷水和热水的水压，使混合水的温度能够自动保持在设定温度，以保持出水温度的稳定。柱塞位于恒温阀内，并与感温元件配合起到一个调节冷、热配合比的核心装置，冷水或热水失效时，柱塞能在感温元件的作用下关闭另一路水使恒温阀芯不出水，防止人体烫伤或冻伤。As the core device for water temperature regulation, thermostatic valve cores are widely used in thermostatic water heaters and thermostatic faucets. When the water pressure of hot or cold water changes suddenly, or the temperature of hot water changes suddenly, the thermostatic regulating valve core can automatically balance the water pressure of cold water and hot water in a very short time, so that the mixed water The temperature can be automatically maintained at the set temperature to keep the water temperature stable. The plunger is located in the thermostatic valve, and cooperates with the temperature sensing element to act as a core device for adjusting the ratio of cold and heat. When the cold water or hot water fails, the plunger can close another way of water under the action of the temperature sensing element to make the thermostatic valve. The core does not contain water to prevent scalding or frostbite on the human body.
传统的恒温柱塞上下两端面为刚性材料构成，与阀芯密封面不易贴合密实，在冷、热水失效的情况下，很难达到彻底切断水效果，并且传统恒温阀柱塞的上下端面与阀体相对应的密封面之间的平面度加工要求较高，在长时间工作后，阀体密封面的平面度会下降。The upper and lower ends of the traditional thermostatic plunger are made of rigid materials, and it is not easy to fit tightly with the sealing surface of the valve core. In the case of cold and hot water failure, it is difficult to achieve the effect of completely cutting off the water, and the upper and lower end surfaces of the traditional thermostatic valve plunger The flatness processing requirements between the sealing surfaces corresponding to the valve body are high, and the flatness of the sealing surface of the valve body will decrease after long-term operation.
发明内容SUMMARY OF THE INVENTION
本实用新型的目的是针对现有技术中存在的上述问题，提供了一种由柔性材料构成的柱塞密封面，使达到密封性更好，使用寿命更长的软密封柱塞。The purpose of this utility model is to solve the above problems existing in the prior art, to provide a plunger sealing surface composed of flexible materials, so as to achieve a soft sealing plunger with better sealing performance and longer service life.
本实用新型的目的可通过下列技术方案来实现：一种软密封柱塞，其特征在于，包括柱塞主体和由柔性材料构成的密封环，所述柱塞主体的上下两端均开设有供相对应密封环嵌入的安置凹槽，所述的柱塞主体上沿其圆周方向开设有将冷、热水分隔的隔水环安装槽，所述的柱塞主体内开设有与感温元件螺纹连接的安装螺槽，所述的柱塞主体内还开设有若干个呈周向间隔分布的过水孔。The purpose of the present utility model can be achieved by the following technical solutions: a soft sealing plunger, characterized in that it comprises a plunger body and a sealing ring composed of a flexible material, and the upper and lower ends of the plunger body are provided with for Corresponding to the placement groove in which the sealing ring is embedded, the plunger body is provided with a water barrier ring installation groove along its circumferential direction to separate cold and hot water, and the plunger body is provided with a thread with a temperature sensing element. For the connected installation screw grooves, the plunger body is also provided with a plurality of water passage holes distributed at intervals in the circumferential direction.
在上述的一种软密封柱塞中，位于所述柱塞上下两端的密封环分别为上密封环与下密封环，所述的上密封环的上端面形成具有起到软密封效果的上密封面，所述的下密封环的下端面形成具有起到软密封效果的下密封面。In the above-mentioned soft sealing plunger, the sealing rings located at the upper and lower ends of the plunger are an upper sealing ring and a lower sealing ring respectively, and the upper end surface of the upper sealing ring forms an upper seal with a soft sealing effect The lower end surface of the lower sealing ring forms a lower sealing surface with a soft sealing effect.
在上述的一种软密封柱塞中，所述的柱塞主体与密封环为一体成型设置从而形成一个整体式的柱塞元件。In the above-mentioned soft sealing plunger, the plunger body and the sealing ring are integrally formed to form an integral plunger element.
在上述的一种软密封柱塞中，所述的安置凹槽内均具有若干个与外界互通的固定孔。In the above-mentioned soft-sealing plunger, each of the placement grooves has a plurality of fixing holes that communicate with the outside world.
在上述的一种软密封柱塞中，所述的密封环为软胶材质。In the above-mentioned soft sealing plunger, the sealing ring is made of soft rubber.
与现有技术相比，本软密封柱塞具有以下优点：Compared with the prior art, the soft sealing plunger has the following advantages:
1、柱塞主体中上下对称设置的密封环采用软胶材质，并与柱塞主体一体成型形成整体式的柱塞元件，降低了柱塞在阀芯内上下移动调节时的磨损度，进而提升了柱塞的使用寿命；1. The sealing ring arranged symmetrically up and down in the plunger body is made of soft rubber, and is integrally formed with the plunger body to form an integral plunger element, which reduces the wear degree of the plunger when the plunger moves up and down in the valve core, thereby improving the the service life of the plunger;
2、通过柔性材料本身具有的弹性变形的特性，柱塞上下两端的密封环在外力的作用下产生弹性变形，形成一个柔性密封的效果，使密封环彻底贴合于阀芯上下相对不平整的密封面上，当外力去除后，弹性变形消失，上密封环和下密封环均回复到初始状态，使柱塞的密封性重置，柱塞与阀芯的过水间隙不变，相对传统单一材料构成的刚性密封柱塞具有更高的稳定性、更好的密封性和更长的使用寿命。2. Through the elastic deformation characteristics of the flexible material itself, the sealing rings at the upper and lower ends of the plunger are elastically deformed under the action of external force, forming a flexible sealing effect, so that the sealing ring can completely fit the relatively uneven upper and lower parts of the valve core. On the sealing surface, when the external force is removed, the elastic deformation disappears, and the upper sealing ring and the lower sealing ring both return to their original states, so that the sealing performance of the plunger is reset, and the water-passing gap between the plunger and the valve core remains unchanged, which is relatively simple compared to the traditional one. Rigid sealing plungers constructed of material provide higher stability, better sealing and longer service life.
附图说明Description of drawings
图1是本软密封柱塞的三视图。Figure 1 is a three view of the present soft seal plunger.
图2是本软密封柱塞中去掉上、下密封环的立体结构。Figure 2 is the three-dimensional structure of the soft sealing plunger with the upper and lower sealing rings removed.
图3是本软密封柱塞的应用场景示意图。FIG. 3 is a schematic diagram of the application scenario of the soft sealing plunger.
图中，1、柱塞主体；2、安置凹槽；3、隔水环安装槽；4、安装螺槽；5、过水孔；6a、上密封环；6b、下密封环；7、固定孔；8、上密封面；9、下密封面。In the figure, 1, plunger body; 2, placement groove; 3, water barrier installation groove; 4, installation screw groove; 5, water hole; 6a, upper seal ring; 6b, lower seal ring; 7, fixed 8. Upper sealing surface; 9. Lower sealing surface.
具体实施方式Detailed ways
以下是本实用新型的具体实施例并结合附图，对本实用新型的技术方案作进一步的描述，但本实用新型并不限于这些实施例。The following are specific embodiments of the present utility model combined with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.
如图1、图2、图3所示，本软密封柱塞，包括柱塞主体1和由柔性材料构成的密封环，柱塞主体1的上下两端均开设有供相对应密封环注射嵌入的安置凹槽2，柱塞主体1上沿其圆周方向开设有将冷、热水分隔的隔水环安装槽3，柱塞主体1内开设有与感温元件螺纹连接的安装螺槽4，柱塞主体1内还开设有若干个呈周向间隔分布的过水孔5。As shown in Figure 1, Figure 2, Figure 3, the soft sealing plunger includes a plunger body 1 and a sealing ring made of a flexible material. The upper and lower ends of the plunger body 1 are provided with corresponding sealing rings for injection and embedding The installation groove 2, the plunger body 1 is provided with a water barrier installation groove 3 that separates cold and hot water along its circumferential direction, and the plunger body 1 is provided with a mounting screw groove 4 that is threadedly connected to the temperature sensing element, The plunger body 1 is also provided with a plurality of water passage holes 5 distributed at intervals in the circumferential direction.
优选的，位于柱塞上下两端的密封环分别为上密封环6a与下密封环6b，上密封环6a的上端面形成具有起到软密封效果的上密封面8，下密封环6b的下端面形成具有起到软密封效果的下密封面9。Preferably, the sealing rings located at the upper and lower ends of the plunger are respectively an upper sealing ring 6a and a lower sealing ring 6b, the upper end surface of the upper sealing ring 6a forms an upper sealing surface 8 with a soft sealing effect, and the lower end surface of the lower sealing ring 6b The lower sealing surface 9 having a soft sealing effect is formed.
优选的，柱塞主体1与密封环为一体成型设置从而形成一个整体式的柱塞元件。Preferably, the plunger body 1 and the sealing ring are integrally formed to form an integral plunger element.
进一步细说，安置凹槽2内均具有若干个与外界互通的固定孔7,固定孔7的设置使上、下密封环6b与柱塞本体产生更多的接触面，增加柱塞整体的稳定性，防止密封环脱落，并提供软胶成型的进胶口。In further detail, there are several fixing holes 7 that communicate with the outside world in the placement groove 2, and the setting of the fixing holes 7 makes the upper and lower sealing rings 6b and the plunger body produce more contact surfaces, increasing the overall stability of the plunger. to prevent the sealing ring from falling off, and to provide a soft rubber molding inlet.
进一步细说，密封环为软胶材质,将两种不同材质的注塑原料按照前后顺序依次注入同一模具内，使产品成为一体。In further detail, the sealing ring is made of soft rubber, and the injection molding materials of two different materials are injected into the same mold in sequence, so that the product is integrated.
本文中所描述的具体实施例仅仅是对本实用新型精神作举例说明。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本实用新型的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but will not deviate from the spirit of the present invention or go beyond the appended claims the defined range.

Claims (5)

  1. 一种软密封柱塞，其特征在于，包括柱塞主体(1)和由柔性材料构成的密封环，所述柱塞主体(1)的上下两端均开设有供相对应密封环嵌入的安置凹槽(2)，所述的柱塞主体(1)上沿其圆周方向开设有将冷、热水分隔的隔水环安装槽(3)，所述的柱塞主体(1)内开设有与感温元件螺纹连接的安装螺槽(4)，所述的柱塞主体(1)内还开设有若干个呈周向间隔分布的过水孔(5)。A soft sealing plunger, characterized in that it comprises a plunger body (1) and a sealing ring composed of a flexible material, and the upper and lower ends of the plunger body (1) are provided with seats for embedding the corresponding sealing rings Groove (2), the plunger main body (1) is provided with a water barrier installation groove (3) along its circumferential direction for separating cold and hot water, and the plunger main body (1) is provided with In the installation screw groove (4) threadedly connected with the temperature sensing element, the plunger body (1) is also provided with a plurality of water passage holes (5) distributed at intervals in the circumferential direction.
  2. 根据权利要求1所述的一种软密封柱塞，其特征在于，位于所述柱塞上下两端的密封环分别为上密封环(6a)与下密封环(6b)，所述的上密封环(6a)的上端面形成具有起到软密封效果的上密封面(8)，所述的下密封环(6b)的下端面形成具有起到软密封效果的下密封面(9)。A soft sealing plunger according to claim 1, characterized in that the sealing rings located at the upper and lower ends of the plunger are an upper sealing ring (6a) and a lower sealing ring (6b), respectively, and the upper sealing ring The upper end surface of (6a) forms an upper sealing surface (8) with a soft sealing effect, and the lower end surface of the lower sealing ring (6b) forms a lower sealing surface (9) with a soft sealing effect.
  3. 根据权利要求1所述的一种软密封柱塞，其特征在于，所述的柱塞主体(1)与密封环为一体成型设置从而形成一个整体式的柱塞元件。A soft sealing plunger according to claim 1, characterized in that, the plunger body (1) and the sealing ring are integrally formed to form an integral plunger element.
  4. 根据权利要求1所述的一种软密封柱塞，其特征在于，所述的安置凹槽(2)内均具有若干个与外界互通的固定孔(7)。A soft sealing plunger according to claim 1, characterized in that, each of the placement grooves (2) has a plurality of fixing holes (7) that communicate with the outside world.
  5. 根据权利要求1所述的一种软密封柱塞，其特征在于，所述的密封环为软胶材质。The soft sealing plunger according to claim 1, wherein the sealing ring is made of soft rubber.
PCT/CN2021/134735 2021-03-26 2021-12-01 Flexible seal plunger WO2022199103A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202120624546.X 2021-03-26
CN202120624546.XU CN214579040U (en) 2021-03-26 2021-03-26 Soft sealing plunger

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WO2022199103A1 true WO2022199103A1 (en) 2022-09-29

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Publication number Priority date Publication date Assignee Title
CN214579040U (en) * 2021-03-26 2021-11-02 台州市国人温控卫浴科技有限公司 Soft sealing plunger

Citations (7)

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Publication number Priority date Publication date Assignee Title
US3765604A (en) * 1971-03-09 1973-10-16 D Trubert Mixing faucet
GB2139324A (en) * 1983-03-04 1984-11-07 Kitamura Gokin Seisakusho Fixture for thermostatically mixing hot and cold water
US6250559B1 (en) * 1997-03-21 2001-06-26 Honeywell Ag Thermostatic water mixer
CN106545671A (en) * 2017-01-13 2017-03-29 九牧厨卫股份有限公司 A kind of constant-temperature constant-current valve element with linkage diverter function
CN110715107A (en) * 2019-10-10 2020-01-21 林仙明 Side surface water inlet thermostatic valve core with switch function
CN214500126U (en) * 2021-02-01 2021-10-26 郑敏 Thermostatic valve core soft sealing plunger and thermostatic valve core
CN214579040U (en) * 2021-03-26 2021-11-02 台州市国人温控卫浴科技有限公司 Soft sealing plunger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765604A (en) * 1971-03-09 1973-10-16 D Trubert Mixing faucet
GB2139324A (en) * 1983-03-04 1984-11-07 Kitamura Gokin Seisakusho Fixture for thermostatically mixing hot and cold water
US6250559B1 (en) * 1997-03-21 2001-06-26 Honeywell Ag Thermostatic water mixer
CN106545671A (en) * 2017-01-13 2017-03-29 九牧厨卫股份有限公司 A kind of constant-temperature constant-current valve element with linkage diverter function
CN110715107A (en) * 2019-10-10 2020-01-21 林仙明 Side surface water inlet thermostatic valve core with switch function
CN214500126U (en) * 2021-02-01 2021-10-26 郑敏 Thermostatic valve core soft sealing plunger and thermostatic valve core
CN214579040U (en) * 2021-03-26 2021-11-02 台州市国人温控卫浴科技有限公司 Soft sealing plunger

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