CN111271490A - Flushing valve - Google Patents

Flushing valve Download PDF

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Publication number
CN111271490A
CN111271490A CN202010206386.7A CN202010206386A CN111271490A CN 111271490 A CN111271490 A CN 111271490A CN 202010206386 A CN202010206386 A CN 202010206386A CN 111271490 A CN111271490 A CN 111271490A
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valve
water
flush
water inlet
section
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CN111271490B (en
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管剑潮
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Zhejiang Kexin Industry Co ltd
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Zhejiang Kexin Industry Co ltd
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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
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • 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
    • F16K15/00—Check valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
    • 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
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

The invention discloses a flush valve which comprises a valve body, a valve core and a flush switch, wherein a water storage cavity is arranged between the top of the valve core and the valve body, the flush switch comprises a frame body, a valve rod and an end cover, the frame body is provided with a water inlet and a water outlet, the inner cavity of the frame body is divided into a sealing section and an unsealing section, the top end of the valve rod is connected with the end cover, the bottom end of the valve rod penetrates through the sealing section and enters the unsealing section, the bottom end of the valve rod is in sealing fit with the sealing section, the sealing section is communicated with the water outlet, the unsealing section is communicated with the water inlet, the water inlet is connected with the water storage cavity through a water inlet pipe, the water outlet is connected with a water drainage pipe of the valve body through a water. The flushing switch and the valve core are separately arranged and are not limited by distance, so that the valve body, the valve core and the flushing switch are convenient to install and use by a user, and the flushing switch is safer and more sanitary to use.

Description

一种冲洗阀a flush valve

技术领域technical field

本发明涉及是一种冲洗阀的改进发明。The present invention relates to an improved invention of a flush valve.

背景技术Background technique

见附图1，传统冲洗阀是通过按压手杆驱动阀芯顶杆，使阀门开启，手杆则通过弹簧复位，若弹簧的弹力太小，手杆则不能复位，因此需要较大的力气去推动弹簧及阀芯顶杆；而且手杆需要与顶杆配合，因此冲洗阀的阀芯与按压开关的安装位置受到限制，两者需要靠近才能配合使用，这样不仅安装不方便，而且使用不便利。See Figure 1, the traditional flush valve is to drive the valve core by pressing the hand lever to open the valve, and the hand lever is reset by the spring. Push the spring and the valve core ejector rod; and the hand lever needs to cooperate with the ejector rod, so the installation position of the valve core of the flush valve and the push switch is limited, and the two need to be close to be used together, which is not only inconvenient to install, but also inconvenient to use .

发明内容SUMMARY OF THE INVENTION

鉴于背景技术中存在的技术问题，本发明所解决的技术问题旨在提供一种冲洗阀，不仅安装方便，而且使用便利。In view of the technical problems existing in the background art, the technical problem solved by the present invention aims to provide a flush valve, which is not only easy to install, but also easy to use.

为解决上述技术问题，本发明采用如下的技术方案：该种冲洗阀，包括有阀体、阀芯及冲洗开关，所述阀芯设置在阀体内，所述阀体的出水端连接排水管，所述阀芯顶部与阀体之间设有储水腔，所述阀芯底部与阀体的出水端配合，其特征在于所述冲洗开关包括有框体、阀杆以及与端盖，所述框体设有进水口和出水口，所述框体的内腔分为密封段和解封段，所述解封段比密封段的内径大，所述阀杆的顶端与端盖连接，所述阀杆的底端穿过密封段并进入解封段，所述阀杆的底端与密封段密封配合，所述内腔的密封段与框体的出水口接通，所述内腔的解封段与框体的进水口接通，所述进水口与通过进水管与储水腔连接，所述出水口通过出水管与阀体的排水管连接，所述阀杆外套设有弹簧，且弹簧设置在端盖与框体之间，所述框体与端盖之间具有按压空隙。In order to solve the above technical problems, the present invention adopts the following technical scheme: the flushing valve includes a valve body, a valve core and a flushing switch, the valve core is arranged in the valve body, and the water outlet end of the valve body is connected to a drain pipe, A water storage cavity is arranged between the top of the valve core and the valve body, and the bottom of the valve core is matched with the water outlet end of the valve body. It is characterized in that the flush switch includes a frame body, a valve stem and an end cover. The frame body is provided with a water inlet and a water outlet, the inner cavity of the frame body is divided into a sealing section and an unsealing section, the unsealing section is larger than the inner diameter of the sealing section, the top of the valve stem is connected with the end cover, the The bottom end of the valve rod passes through the sealing section and enters the unsealing section, the bottom end of the valve rod is in sealing fit with the sealing section, the sealing section of the inner cavity is connected with the water outlet of the frame, and the sealing section of the inner cavity is connected to the water outlet of the frame body. The sealing section is connected with the water inlet of the frame body, the water inlet is connected with the water storage cavity through the water inlet pipe, the water outlet is connected with the drain pipe of the valve body through the water outlet pipe, and the valve stem jacket is provided with a spring, and The spring is arranged between the end cover and the frame body, and there is a pressing gap between the frame body and the end cover.

所述冲洗开关设置有两组，分别为大水量开关和小水量开关，所述大水量开关的按压空隙比小水量开关的按压空隙大，所述进水管和出水管也设置有两组，分别为进水管一、出水管一、进水管二及出水管二。The flushing switch is provided with two groups, which are a large water volume switch and a small water volume switch. The pressing gap of the large water volume switch is larger than that of the small water volume switch. The water inlet pipe and the water outlet pipe are also provided with two groups, respectively. For the water inlet pipe 1, the water outlet pipe 1, the water inlet pipe 2 and the water outlet pipe 2.

所述阀芯包括有顶座、芯体、中座和底座，所述顶座设有与阀体的进水端相通的进水通道，所述进水通道与储水腔单向接通，所述顶座与阀体内壁密封配合，所述中座与阀体的出水端密封配合。The valve core includes a top seat, a core body, a middle seat and a base. The top seat is provided with a water inlet channel that communicates with the water inlet end of the valve body, and the water inlet channel is unidirectionally connected to the water storage cavity. The top seat is in sealing engagement with the inner wall of the valve body, and the middle seat is in sealing engagement with the water outlet end of the valve body.

所述顶座上设有延时座，所述延时座上开设有阻尼孔，所述阻尼孔与进水通道和储水腔接通。A delay seat is arranged on the top seat, and a damping hole is opened on the delay seat, and the damping hole is connected with the water inlet channel and the water storage cavity.

所述阻尼孔配设有弹簧通针，所述弹簧通针安装在延时座上。The damping hole is provided with a pogo pin, and the pogo pin is mounted on the delay seat.

本发明的冲洗开关与阀芯分开设置，两者不受距离限制，这样不仅便于阀体、阀芯及冲洗开关的安装，而且冲洗开关与阀芯、阀体的安装位置不受限制也更便于用户使用，而且冲洗开关远离阀芯、阀体，可以免受冲洗时细菌的感染，更加安全、卫生。The flush switch of the present invention is arranged separately from the valve core, and the distance between the two is not limited, which not only facilitates the installation of the valve body, the valve core and the flush switch, but also facilitates the installation of the flush switch, the valve core and the valve body without being restricted. It can be used by users, and the flush switch is far away from the valve core and valve body, which can avoid bacterial infection during flushing, and is safer and more hygienic.

附图说明Description of drawings

图1为传统冲洗阀的示意图。Figure 1 is a schematic diagram of a conventional flush valve.

图2为本发明的示意图。Figure 2 is a schematic diagram of the present invention.

图3为本发明阀体与阀芯的剖视图。3 is a cross-sectional view of the valve body and the valve core of the present invention.

图4为本发明冲洗开关的剖视图。4 is a cross-sectional view of the flush switch of the present invention.

图5为本发明阀芯关闭状态示意图。FIG. 5 is a schematic diagram of the closed state of the valve core of the present invention.

图6为本发明阀芯开启状态示意图。FIG. 6 is a schematic diagram of the valve core of the present invention in an open state.

图7为本发明安装在墙体上的示意图。FIG. 7 is a schematic diagram of the present invention being installed on a wall.

具体实施方式Detailed ways

下面结合附图描述本发明的实施方式及实施例的有关细节及工作原理。该种冲洗阀，包括有阀体3、阀芯及冲洗开关5，所述阀芯设置在阀体3内，所述阀体的出水端连接排水管4，所述阀芯顶部与阀体之间设有储水腔11，所述阀芯底部与阀体的出水端配合，所述冲洗开关包括有框体16、阀杆20以及与端盖18，所述框体16设有进水口25和出水口21，所述框体的内腔分为密封段22和解封段23，所述解封段比密封段的内径大，内腔呈阶梯状，所述阀杆20的顶端与端盖18连接，所述阀杆的底端穿过密封段22并进入解封段23，所述阀杆的底端与密封段密封配合，阀杆20的底端外径比密封段22的内径大，阀杆的底端不会进入密封段并将密封段密封，使密封段与解封段分离；所述内腔的密封段22与框体的出水口21接通，所述内腔的解封段23与框体的进水口25接通，所述进水口25与通过进水管6与储水腔11连接，所述出水口21通过出水管1与阀体的排水管4连接，所述阀杆20外套设有弹簧19，且弹簧设置在端盖18与框体16之间，所述框体与端盖之间具有按压空隙17，按压端盖18，弹簧19受压，按压空隙17变小直至端盖18与框体16接触，此时，密封面打开，阀杆的底端深入解封段23，内腔的密封段与解封段相通，储水腔11、进水管6、阀体内腔、出水管1及排水管4相通，储水腔内的水通过进水管，经框体的内腔，再经过出水管，最后由阀体的排水管排出，随着储水腔内的水排空，阀芯沿阀体3内壁移动，阀体的出水端开启，并由排水管4排出，见附图6；而后，弹簧19推动端盖18复位，即阀杆20复位，水流被切断，出水管1停止排水，储水腔11内的水量增加推动阀芯复位，并将阀体的出水端关闭，见附图5，此时阀门关闭。本发明的冲洗开关通过进水管6和出水管1与阀体3连接，冲洗开关的安装位置不再受到限制，可以更大限度的扩大其安装范围，可以将冲洗开关5的位置远离阀体3，这样不仅便于安装，而且冲洗时细菌飞扬，这样可以免受细菌感染，使用也更安全、卫生；本发明只需轻轻按压端盖18克服弹簧19的弹力就可以将密封面打开，使将储水腔内的水排出，端盖重量轻，复位所需的弹力小，因此按压弹簧所需的力就小，更便于儿童及老年人使用。The relevant details and working principles of the embodiments and embodiments of the present invention will be described below with reference to the accompanying drawings. The flushing valve includes a valve body 3, a valve core and a flushing switch 5, the valve core is arranged in the valve body 3, the water outlet end of the valve body is connected to a drain pipe 4, and the top of the valve core and the valve body are connected to each other. There is a water storage cavity 11 between the valve core and the water outlet end of the valve body. The flush switch includes a frame body 16, a valve stem 20 and an end cover 18. The frame body 16 is provided with a water inlet 25. and the water outlet 21, the inner cavity of the frame body is divided into a sealing section 22 and an unsealing section 23, the unsealing section is larger than the inner diameter of the sealing section, and the inner cavity is stepped. The top of the valve stem 20 and the end cover 18 connection, the bottom end of the valve stem passes through the sealing section 22 and enters the unsealing section 23, the bottom end of the valve stem is in sealing fit with the sealing section, and the outer diameter of the bottom end of the valve stem 20 is larger than the inner diameter of the sealing section 22 , the bottom end of the valve stem will not enter the sealing section and seal the sealing section, so that the sealing section and the unsealing section are separated; the sealing section 22 of the inner cavity is connected to the water outlet 21 of the frame body, and the sealing section 22 of the inner cavity The sealing section 23 is connected to the water inlet 25 of the frame body, the water inlet 25 is connected to the water storage cavity 11 through the water inlet pipe 6, the water outlet 21 is connected to the drain pipe 4 of the valve body through the water outlet pipe 1, and the The valve stem 20 is covered with a spring 19, and the spring is arranged between the end cover 18 and the frame body 16. There is a pressing gap 17 between the frame body and the end cover. When the end cover 18 is pressed, the spring 19 is pressed, and the pressing gap 17 is pressed. It becomes smaller until the end cover 18 contacts the frame body 16. At this time, the sealing surface is opened, the bottom end of the valve stem penetrates into the unsealing section 23, the sealing section of the inner cavity is communicated with the unsealing section, the water storage cavity 11, the water inlet pipe 6, The inner cavity of the valve body, the water outlet pipe 1 and the drainage pipe 4 are connected, and the water in the water storage cavity passes through the water inlet pipe, passes through the inner cavity of the frame body, and then passes through the water outlet pipe, and finally is discharged by the drainage pipe of the valve body. The water is emptied, the valve core moves along the inner wall of the valve body 3, the water outlet of the valve body is opened, and is discharged from the drain pipe 4, see Figure 6; then, the spring 19 pushes the end cover 18 to reset, that is, the valve stem 20 is reset, and the water flow After being cut off, the water outlet pipe 1 stops draining water, and the increase in the water volume in the water storage chamber 11 pushes the valve core to reset, and closes the water outlet end of the valve body, see Figure 5, and the valve is closed at this time. The flush switch of the present invention is connected to the valve body 3 through the water inlet pipe 6 and the water outlet pipe 1, the installation position of the flush switch is no longer restricted, the installation range can be expanded to a greater extent, and the position of the flush switch 5 can be kept away from the valve body 3 , this is not only easy to install, but also the bacteria fly when flushing, which can prevent bacterial infection, and is safer and more hygienic to use; the present invention only needs to gently press the end cover 18 to overcome the elastic force of the spring 19 to open the sealing surface, so that the The water in the water storage cavity is discharged, the end cover is light in weight, and the elastic force required for reset is small, so the force required for pressing the spring is small, which is more convenient for children and the elderly to use.

所述阀体3的内腔可以竖向设置或横向设置，若阀体的内腔竖向设置，则阀芯在阀体内上下移动，若阀体的内腔横向设置，则阀芯在阀体内左右移动，本实施例中，所述阀芯横向设置在阀体3内，所述阀芯包括有顶座8、芯体13、中座14和底座15，所述顶座8设有与阀体的进水端相通的进水通道12，所述进水通道与储水腔11单向接通，即进水通道内的水可以进入储水腔，所述储水腔内的水则不能进入进水通道，可以通过阻尼孔实现，阻尼孔一端与进水通道接通，阻尼孔的另一端与储水腔接通，本实施例中，所述顶座9上设有延时座，所述延时座上开设有阻尼孔，所述阻尼孔与进水通道和储水腔接通，通过阻尼孔实现进水通道内的水可以进入储水腔，所述储水腔内的水则不能进入进水通道；为避免阻尼孔堵塞，所述阻尼孔配设有弹簧通针10，所述弹簧通针安装在延时座9上，所述顶座8与阀体3内壁密封配合，所述中座14与阀体的出水端密封配合；排水时，阀芯向右移动，储水腔11内的水排出，直至弹簧通针与阀体接触，并且弹簧通针受压插入阻尼孔内，使阻尼孔通畅、不堵塞；当冲洗开关的阀杆20复位时，进水通道12的水通过阻尼孔进入储水腔11内，储水腔进水则推动阀芯向左移动并复位，阀芯重新将阀体的出水端关闭，若没有弹簧通针10，水中杂质可能会堵塞阻尼孔，导致阀芯不能复位，因此，弹簧通针的设置延长了冲洗阀的使用寿命。The inner cavity of the valve body 3 can be arranged vertically or horizontally. If the inner cavity of the valve body is arranged vertically, the valve core moves up and down in the valve body. If the inner cavity of the valve body is arranged horizontally, the valve core is in the valve body. Move left and right, in this embodiment, the valve core is laterally arranged in the valve body 3, the valve core includes a top seat 8, a core body 13, a middle seat 14 and a base 15, and the top seat 8 is provided with the valve The water inlet channel 12 is connected to the water inlet end of the body, and the water inlet channel is unidirectionally connected to the water storage cavity 11, that is, the water in the water inlet channel can enter the water storage cavity, and the water in the water storage cavity cannot Entering the water inlet channel can be achieved through a damping hole. One end of the damping hole is connected to the water inlet channel, and the other end of the damping hole is connected to the water storage cavity. In this embodiment, the top seat 9 is provided with a delay seat. The delay seat is provided with a damping hole, and the damping hole is connected with the water inlet channel and the water storage cavity. Through the damping hole, the water in the water inlet channel can enter the water storage cavity, and the water in the water storage cavity can enter the water storage cavity. In order to prevent the damping hole from being blocked, the damping hole is equipped with a pogo pin 10, the pogo pin is installed on the delay seat 9, and the top seat 8 is in sealing fit with the inner wall of the valve body 3 , the middle seat 14 is sealingly matched with the water outlet of the valve body; when draining, the valve core moves to the right, and the water in the water storage cavity 11 is discharged until the spring needle contacts the valve body, and the spring needle is pressed into the damping When the valve stem 20 of the flush switch is reset, the water in the water inlet channel 12 enters the water storage cavity 11 through the damping hole, and the water in the water storage cavity pushes the valve core to move to the left and After reset, the valve core closes the water outlet of the valve body again. If there is no pogo pin 10, impurities in the water may block the damping hole, causing the spool to fail to reset. Therefore, the setting of the pogo pin extends the service life of the flush valve.

所述冲洗开关设置有两组，分别为大水量开关27和小水量开关26，即需要大水量冲洗时，按压大水量开关，反之，则按压小水量开关；所述大水量开关的按压空隙比小水量开关的按压空隙大，所述进水管6和出水管1也设置有两组，分别为进水管一、出水管一、进水管二及出水管二，所述进水管一和进水管二均与储水腔接通，所述出水管一和出水管二则与排水管接通。所述阀杆20及端盖18的移动行程大则水量排出多，这是因为，阀杆20深入解封段23，密封面打开的空隙越大，那么出水量就越大，储水腔11内的水排出越多，阀芯移动的行程就长，复位所需的时间长，因此，排水量就大，反之则小，如此根据需求选择排水量，更加节能。The flushing switch is provided with two groups, which are a large water volume switch 27 and a small water volume switch 26, that is, when a large water volume is required for flushing, press the large water volume switch, and vice versa, press the small water volume switch; the pressing gap ratio of the large water volume switch is The pressure gap of the small water volume switch is large, and the water inlet pipe 6 and the water outlet pipe 1 are also provided with two groups, namely the water inlet pipe 1, the water outlet pipe 1, the water inlet pipe 2 and the water outlet pipe 2, the water inlet pipe 1 and the water inlet pipe 2. Both are connected with the water storage cavity, and the first water outlet pipe and the second water outlet pipe are connected with the drain pipe. The larger the movement stroke of the valve stem 20 and the end cover 18, the more water is discharged. This is because the valve stem 20 goes deep into the unsealing section 23, and the larger the opening of the sealing surface, the greater the water output, and the water storage cavity 11 The more water is discharged inside, the longer the spool moves, and the longer it takes to reset. Therefore, the displacement will be large, and vice versa. In this way, the displacement will be selected according to the demand, which will save energy.

Claims (5)

1. A flush valve comprises a valve body, a valve core and a flush switch, wherein the valve core is arranged in the valve body, the water outlet end of the valve body is connected with a drain pipe, a water storage cavity is arranged between the top of the valve core and the valve body, the bottom of the valve core is matched with the water outlet end of the valve body, the flush valve is characterized by comprising a frame body, a valve rod and an end cover, the frame body is provided with a water inlet and a water outlet, the inner cavity of the frame body is divided into a sealing section and an unsealing section, the inner diameter of the unsealing section is larger than that of the sealing section, the top end of the valve rod is connected with the end cover, the bottom end of the valve rod penetrates through the sealing section and enters the unsealing section, the bottom end of the valve rod is in sealing fit with the sealing section, the sealing section of the inner cavity is communicated with the water outlet of the frame body, the unsealing section of, the valve rod is sleeved with a spring, the spring is arranged between the end cover and the frame body, and a pressing gap is formed between the frame body and the end cover.
2. The flush valve of claim 1, wherein said flush switch is provided in two sets, a large volume switch and a small volume switch, respectively, said large volume switch having a larger pressing gap than said small volume switch, said inlet tube and said outlet tube being provided in two sets, a first inlet tube, a first outlet tube, a second inlet tube and a second outlet tube, respectively.
3. The flushing valve of claim 1 or 2, wherein the valve core comprises a top seat, a core body, a middle seat and a base, the top seat is provided with a water inlet channel communicated with the water inlet end of the valve body, the water inlet channel is communicated with the water storage cavity in a one-way mode, the top seat is in sealing fit with the inner wall of the valve body, and the middle seat is in sealing fit with the water outlet end of the valve body.
4. The flush valve of claim 3, wherein the top seat is provided with a delay seat, the delay seat is provided with a damping hole, and the damping hole is communicated with the water inlet channel and the water storage cavity.
5. A flush valve as claimed in claim 4, wherein said orifice is provided with a spring-through needle mounted on a delay seat.
CN202010206386.7A 2020-03-23 2020-03-23 A flush valve Active CN111271490B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112376660A (en) * 2020-10-31 2021-02-19 浙江科欣实业有限公司 Flushing valve

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CN204878778U (en) * 2015-08-24 2015-12-16 浙江科欣实业有限公司 Controllable flushometer of economizing on water
CN206496012U (en) * 2016-11-28 2017-09-15 浙江科欣实业有限公司 One kind throttling flushing valve
CN211875181U (en) * 2020-03-23 2020-11-06 浙江科欣实业有限公司 a flush valve

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CN201110416Y (en) * 2007-10-31 2008-09-03 温州帝威斯感应洁具有限公司 Touch type block-resistant descaling time-delay self-closing water-saving device
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Publication number Priority date Publication date Assignee Title
CN112376660A (en) * 2020-10-31 2021-02-19 浙江科欣实业有限公司 Flushing valve

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