WO2022267227A1

WO2022267227A1 - Axial water intake type dual-path single-control valve core

Info

Publication number: WO2022267227A1
Application number: PCT/CN2021/116804
Authority: WO
Inventors: 张家新
Original assignee: 张家新
Priority date: 2021-06-21
Filing date: 2021-09-07
Publication date: 2022-12-29
Also published as: CN215257969U; RU209236U1

Abstract

An axial water intake type dual-path single-control valve core, comprising a valve casing (10) and a valve seat (20), wherein the valve seat (20) is provided with a water intake path and a water output path, and the valve casing (10) is internally provided with a valve stem (11), a movable plate (12) and a static plate (13). The static plate (13) is provided with a water inlet and a water outlet. The water intake path extends towards the end of the valve seat (20) that faces away from the valve casing (10), and the axis of the water intake path is parallel to the axis of the valve casing (10). The water output path (21) is internally provided with a tapered spray pipe (22), wherein a small-diameter end of the tapered spray pipe (22) faces the end of the water output path (21) away from the water outlet (131), and a large-diameter end of the tapered spray pipe (22) is in communication with the water outlet (131); the cross-sectional flow of the small-diameter end of the tapered spray pipe (22) is less than the cross-sectional flows of the water output path (21), the water outlet (131) and the large-diameter end of the tapered spray pipe (22); and the axis of the small-diameter end of the tapered spray pipe (22) is concentric with the axis of the end of the water output path (21) away from the water outlet (131). The valve seat (20) is further provided with a secondary water output path (23), the secondary water output path (23) being in communication with the inner wall of the water output path (21) that is located between the large-diameter end and the small-diameter end of the tapered spray pipe (22).

Description

An axial water-inlet dual-way single-control spool

technical field

The utility model relates to the field of valve cores of water heating sanitary ware, in particular to an axial water-inlet type dual-channel single-control valve core.

Background technique

The spool is used to control the on-off of the water flow. Existing plumbing fixtures often have multiple water outlet ports. When a stop spool controls the flow of water, it is often necessary to install multiple conversion spools downstream of the stop spool. To control different water outlet paths, it increases the complexity of the waterway of the plumbing and sanitary ware, and also increases the manufacturing cost. For the user, it increases the cost of use. When using it, if it is necessary to switch a certain water outlet port, it must be manually controlled. The conversion of the spool brings inconvenience to the actual use;

Especially for some plumbing sanitary ware with hand spray (pull nozzle) nozzles, in order to ensure the water output force and pressure of hand spray (pull nozzle) during use, the water supply of hand spray (pull nozzle) should be satisfied first, but now Some spool structures cannot effectively ensure that the hand spray (pull nozzle) is turned on alone, and cut off the water from other outlet ports downstream of the cut-off valve core in time. Therefore, in order to ensure the pressure and water output of the hand spray (pull nozzle), It is necessary to manually switch the conversion valve core to block other water outlet ports downstream of the cut-off valve core, which makes it extremely inconvenient for users to use; if the conversion valve core is used, a water outlet port is specially reserved for hand spray (pull nozzle) for design If the hand spray (pull nozzle) nozzle itself has a control handle, it is necessary to switch the switching valve core first when using the hand spray (pull nozzle), and then press the control handle of the hand spray (pull nozzle) nozzle to further Increased the cumbersomeness when using the hand spray (drawing nozzle).

Utility model content

Based on the above problems, the purpose of this utility model is to provide a device that can directly connect the hand spray (pull nozzle), cut off the water from other outlet ports when the hand spray (pull nozzle) is turned on, and give priority to ensuring the hand spray (pull nozzle). Axial water-inlet dual-way single-control spool.

In view of the above problems, the following technical solutions are provided: an axial water-inlet dual-way single-control valve core, including a valve housing, a valve seat is provided at the rear end of the valve housing, and a water inlet and an outlet are provided on the valve seat. Water channel, the valve casing is provided with a moving piece controlled by the valve stem and a static piece that is opposed to the valve seat on one side and adapted to the moving piece on the other side. The static piece is provided with a water inlet connected to the water inlet and an outlet The water outlet connected with the water channel, the end of the water inlet away from the water inlet extends to the end of the valve seat facing away from the valve housing, and its axis is parallel to the axis of the valve housing; a tapered nozzle is provided in the water outlet, and the tapered The small-diameter end of the nozzle faces the end of the water outlet away from the water outlet, the large-diameter end of the tapered nozzle communicates with the water outlet, and the cross-sectional flow rate of the small-diameter end of the tapered nozzle is smaller than the cross-sectional flow rate of the water outlet channel and the water outlet And the cross-sectional flow rate of the large diameter end of the conical nozzle, the axis of the small diameter end of the conical nozzle is concentric with the axis of the end of the water outlet away from the water outlet; the valve seat is also provided with an auxiliary water outlet, and the auxiliary water outlet It communicates with the inner wall of the water outlet between the large-diameter end and the small-diameter end of the tapered nozzle.

In the above structure, the valve stem controls the brake piece to slide relative to the static piece, so as to realize the conduction or closure between the water inlet and the water outlet; the water outlet is used to connect the hand spray (pull nozzle), and the auxiliary water outlet is used to connect the downstream Water outlet or conversion valve core; when the downstream water outlet connected to the auxiliary water outlet is in the water state, the water flows from the water outlet to the outlet, and after passing through the tapered nozzle, it forms a high-speed and high-pressure water jet from the small diameter end of the tapered nozzle , after entering the inner cavity of the end of the water outlet away from the water outlet, because the hand spray (pull nozzle) is not turned on, the water flow reverses and flows out from the auxiliary water outlet between the large diameter end and the small diameter end of the conical nozzle; when When the hand spray (pull nozzle) is turned on, the water flows from the water outlet to the water outlet, and after passing through the tapered nozzle, it forms a high-speed and high-pressure water jet from the small diameter end of the tapered nozzle, directly acting on the end of the water outlet away from the water outlet Cooperate with Bernoulli's principle to generate negative pressure at the connection between the auxiliary water channel and the water outlet, so that the water flow completely flows to the end of the water outlet away from the water outlet, so that when the water outlet downstream of the auxiliary water channel is in the state of water, hand spray (pull) When the nozzle) is turned on, the water supply from the auxiliary water channel to the downstream outlet end is automatically cut off to provide sufficient water supply for the hand spray (pull nozzle); the end of the water inlet away from the water inlet extends to the end of the valve seat facing away from the valve housing, which is suitable for the valve core In case of loading state.

The utility model is further configured that the water inlet includes a cold water channel and a hot water channel, and the water inlet includes a cold water port and a hot water port; the cold water channel is connected to the cold water port, and the hot water channel is connected to the hot water port; The end of the cold water channel away from the cold water port and the end of the hot water channel away from the hot water port face the same direction.

In the above structure, two water inlets can be arranged to make it a hot and cold water valve core.

The utility model is further configured that, the direction of the water outlet is the same as that of the water inlet.

In the above structure, the pull hose of the hand spray (pull nozzle) is often stored under the faucet housing, so the direction of the outlet channel is the same as that of the water inlet, which is convenient for the pull hose and valve core of the hand spray (pull nozzle) butt.

The utility model is further configured such that the auxiliary water outlet faces toward the water outlet or the water inlet, or toward the radial direction of the valve housing or the valve seat.

In the above structure, the auxiliary water outlet is used to supply water to other water ports of the faucet, so its orientation can be adjusted according to the structure of the actual faucet.

The utility model is further configured that the water inlet is far from the end of the water inlet, the water outlet is far from the end of the water outlet, the auxiliary water outlet is far away from the end connected with the water outlet, and the inner walls of the auxiliary water channels are all provided with internal threads.

In the above structure, the internal thread is used for connecting the water pipe.

The utility model is further configured that the internal thread and the valve seat are integrally formed by injection molding.

In the above structure, the internal thread and the valve seat are integrally formed by injection molding, which can effectively reduce the production cost.

The utility model is further configured that the internal thread is arranged on a threaded sleeve, and the threaded sleeve is integrally connected with the valve seat by injection molding.

In the above structure, the thread sleeve is preferably a brass sleeve, which can improve the wear resistance of the internal thread.

The utility model is further configured that the large-diameter end of the tapered nozzle is fixed on the inner wall of the water outlet through glue or welding.

Among the above structures, ultrasonic welding is preferred during welding, which ensures the butt joint strength and improves the production efficiency at the same time.

The utility model is further configured that the tapered nozzle and the valve seat are integrally formed by injection molding.

In the above structure, the tapered nozzle and the valve seat are molded integrally to improve the stability of the overall structure.

The beneficial effects of the utility model: the valve rod controls the sliding of the brake plate relative to the static plate, thereby realizing the conduction or closure between the water inlet and the water outlet; the water outlet is used to connect the hand spray (pull nozzle), and the auxiliary water outlet Connect the downstream water outlet or the conversion valve core; when the downstream water outlet connected to the auxiliary water outlet is in the water state, the water flows from the water outlet to the water outlet, and after passing through the tapered nozzle, it forms a high speed and high pressure from the small diameter end of the tapered nozzle The water flow is sprayed out and enters the inner cavity of the end of the water outlet away from the water outlet. Since the hand spray (pull nozzle) is not turned on, the water flow reverses and flows back from the auxiliary water channel between the large diameter end and the small diameter end of the conical nozzle. Outflow; when the hand spray (pull nozzle) is turned on, the water flows from the water outlet to the water outlet, and after passing through the tapered nozzle, it forms a high-speed and high-pressure water jet from the small diameter end of the tapered nozzle, directly acting on the water outlet away from the outlet. One end of the water outlet, combined with Bernoulli's principle, creates a negative pressure at the connection between the auxiliary water channel and the water outlet, so that the water flow completely flows to the end of the water outlet away from the water outlet, so that when the water outlet downstream of the auxiliary water channel is in the state of water, the hand spray (Pull nozzle) automatically cuts off the water supply from the secondary outlet to the downstream outlet when it is turned on, providing sufficient water supply for the hand spray (pull nozzle); the end of the water inlet away from the water inlet extends to the end of the valve seat facing away from the valve housing When the spool is in the upper state.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic diagram of the structure of the static sheet of the present invention.

Fig. 3 is a schematic diagram of the structure of the valve housing and the valve seat in the separation state of the utility model.

Fig. 4 is a schematic diagram of the full section structure of the valve seat of the present invention.

Fig. 5 is a schematic diagram of the structure of the tapered nozzle of the present invention.

Meanings of symbols in the figure: 10-valve housing; 11-valve stem; 12-moving piece; 13-static piece; 131-water outlet; 132-cold water outlet; 133-hot water outlet; 20-valve seat; 21-water outlet ; 22-tapered nozzle; 23-secondary water outlet; 24-cold water channel; 25-hot water channel; 26-thread sleeve; 261-internal thread.

detailed description

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Referring to Fig. 1 to Fig. 5, an axial water-inlet dual-way single-control valve core as shown in Fig. 1 to Fig. The valve seat 20 is provided with a water inlet and an outlet 21, and the valve housing 10 is provided with a moving piece 12 controlled by the valve stem 11 and a static piece 13 that is matched with the valve seat 20 on one side and matched with the moving piece 12 on the other side. , the static piece 13 is provided with a water inlet connected to the water inlet and a water outlet 131 connected to the water outlet 21, the end of the water inlet far away from the water inlet extends toward the end of the valve seat 20 facing away from the valve housing 10, which The axis is parallel to the axis of the valve housing 10; a tapered nozzle 22 is provided in the water outlet 21, and the small diameter end of the tapered nozzle 22 faces the end of the water outlet 21 away from the water outlet 131, and the tapered nozzle 22 The large-diameter end of the tapered nozzle pipe 22 communicates with the water outlet 131, and the cross-sectional flow rate of the small-diameter end of the tapered nozzle 22 is less than the cross-sectional flow rate of the water outlet 21, the cross-sectional flow rate of the water outlet 131, and the large-diameter end cross-sectional flow rate of the tapered nozzle pipe 22. The small-diameter end axis of the shaped nozzle 22 is concentric with the axis of the water outlet 21 away from the end of the water outlet 131; It communicates with the inner wall of the outlet channel 21 between the small diameter ends.

In the above structure, the valve rod 11 controls the sliding of the brake plate 12 relative to the static plate 13, so as to realize the conduction or closure between the water inlet and the water outlet 131; 23 is used to connect the downstream water outlet or the conversion spool; when the downstream water outlet connected by the auxiliary water outlet 23 is in the water state, the water flows from the water outlet 131 to the water outlet 21, and after passing through the tapered nozzle 22, it flows from the tapered nozzle. The small-diameter end of the pipe 22 forms a high-speed and high-pressure water jet, and after entering the inner cavity of the water outlet 21 at the end far away from the water outlet 131, because the hand spray (pull the nozzle) is not turned on, the water flow reverses from the tapered nozzle 22 to the large The auxiliary water outlet 23 between the diameter end and the small diameter end flows out; when the hand spray (pull nozzle) is turned on, the water flows from the water outlet 131 to the water outlet 21, and after passing through the tapered nozzle 22, it flows from the outlet of the tapered nozzle 22. The small-diameter end forms a high-speed high-pressure water jet, which directly acts on the end of the water outlet 21 away from the water outlet 131. Cooperating with Bernoulli's principle, a negative pressure is generated at the connection between the auxiliary water outlet 23 and the water outlet 21, so that the water flows completely to the water outlet 21 away from One end of the water outlet 131, so that when the downstream water outlet of the auxiliary water outlet 23 is in the water state, the water supply from the auxiliary water outlet 23 to the downstream water outlet is automatically cut off when the hand spray (pull nozzle) is turned on, which is a hand spray (pull nozzle) Provide sufficient water supply; the end of the water inlet away from the water inlet extends to the end of the valve seat 20 facing away from the valve housing 10, which is suitable for the occasion when the valve core is in the upper state.

In this embodiment, the water inlet includes a cold water channel 24 and a hot water channel 25, and the water inlet includes a cold water port 132 and a hot water port 133; the cold water channel 24 communicates with the cold water port 132, and the hot water channel 25 communicates with the hot water port The water port 133 is connected; the end of the cold water channel 24 away from the cold water port 132 and the end of the hot water channel 25 away from the hot water port 133 face the same direction.

In this embodiment, the direction of the water outlet channel 21 is the same as that of the water inlet channel (the cold water channel 24 and the hot water channel 25 ).

In the above structure, the pull hose of the hand spray (pull nozzle) is often stored under the faucet housing, so the direction of the outlet channel 21 is the same as that of the water inlet channel (cold water channel 24 and hot water channel 25), which is convenient for hand spray (pull nozzle). The drawing hose of the nozzle) is connected with the valve core.

In this embodiment, the auxiliary water outlet channel 23 faces toward the water outlet channel 21 or the water inlet channel, or toward the radial direction of the valve casing 10 or the valve seat 20 .

In the above structure, the auxiliary water outlet channel 23 is used to supply water to other water ports of the faucet, so its orientation can be adjusted according to the structure of the actual faucet.

In this embodiment, the water inlet is far from the end of the water inlet, the water outlet 21 is far from the end of the water outlet 131, and the auxiliary water outlet 23 is far away from the end connected to the water outlet 21, and its inner wall is provided with internal threads 261 .

In the above structure, the internal thread 261 is used for connecting the water pipe.

In this embodiment, the internal thread 261 and the valve seat 20 are integrally formed by injection molding.

In the above structure, the internal thread 261 and the valve seat 20 are integrally formed by injection molding, which can effectively reduce the production cost.

In this embodiment, the internal thread 261 is disposed on the threaded sleeve 26 , and the threaded sleeve 26 is integrally connected with the valve seat 20 by injection molding.

In the above structure, the threaded sleeve 26 is preferably a brass sleeve, which can improve the wear resistance of the internal thread 261 .

In this embodiment, the large-diameter end of the tapered nozzle 22 is fixed to the inner wall of the water outlet 21 by gluing or welding.

Among the above-mentioned structures, ultrasonic welding is preferred during welding to ensure butt joint strength and improve production efficiency at the same time.

In this embodiment, the tapered nozzle 22 and the valve seat 20 are integrally formed by injection molding.

In the above structure, the tapered nozzle 22 and the valve seat 20 are molded integrally to improve the stability of the overall structure.

The beneficial effects of the utility model: the valve rod 11 controls the sliding of the brake plate 12 relative to the static plate 13, thereby realizing the conduction or closure between the water inlet and the water outlet 131; the water outlet 21 is used to connect the hand spray (pull nozzle), The auxiliary water outlet 23 is used to connect the downstream water outlet or the conversion spool; when the downstream water outlet connected by the auxiliary water outlet 23 is in the water state, the water flows from the water outlet 131 to the water outlet 21, and then passes through the tapered nozzle 22 from the The small-diameter end of the conical nozzle 22 forms a high-speed and high-pressure water jet, and after entering the inner cavity of the water outlet 21 away from the water outlet 131, the hand spray (pull the nozzle) is not turned on, causing the water to flow back from the conical nozzle. The auxiliary water outlet 23 between the large-diameter end and the small-diameter end of the pipe 22 flows out; The small-diameter end of the pipe 22 forms a high-speed and high-pressure water jet, which directly acts on the end of the water outlet 21 away from the water outlet 131. Cooperating with Bernoulli's principle, a negative pressure is generated at the connection between the auxiliary water outlet 23 and the water outlet 21, so that the water flows completely to the outlet. The water channel 21 is far away from the end of the water outlet 131, so that when the water outlet end downstream of the auxiliary water outlet 23 is in the water state, the water supply from the auxiliary water outlet 23 to the downstream water outlet is automatically cut off when the hand spray (drawing nozzle) is turned on, which is a manual spray (drawing nozzle) Pulling the nozzle) to provide sufficient water supply; the water inlet extends away from the end of the water inlet to the end of the valve seat 20 facing away from the valve housing 10, which is suitable for occasions when the valve core is in an upper state.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

An axial water-inlet type two-way single-control valve core, including a valve housing, a valve seat is provided at the rear end of the valve housing, a water inlet channel and a water outlet channel are provided on the valve seat, and a passageway is provided in the valve housing. The moving piece controlled by the valve stem and the static piece whose one side is offset against the valve seat and the other side is adapted to the moving piece, the static piece is provided with a water inlet connected to the water inlet and a water outlet connected to the water outlet, which is characterized in that: The end of the water inlet away from the water inlet extends to the end of the valve seat facing away from the valve housing, and its axis is parallel to the axis of the valve housing; a tapered nozzle is provided in the water outlet, and the small diameter end of the tapered nozzle faces The end of the water outlet away from the water outlet, the large diameter end of the tapered nozzle communicates with the water outlet, and the cross-sectional flow rate of the small diameter end of the tapered nozzle is smaller than the cross-sectional flow rate of the water outlet, the cross-sectional flow rate of the water outlet and the tapered nozzle. The cross-sectional flow rate of the large diameter end, the axis of the small diameter end of the tapered nozzle is concentric with the axis of the end of the water outlet away from the water outlet; the valve seat is also provided with an auxiliary water outlet, and the auxiliary water outlet is larger than the tapered nozzle The inner wall of the water outlet between the diameter end and the small diameter end communicates.
An axial water-inlet dual-way single-control valve core according to claim 1, wherein the water inlet includes a cold water channel and a hot water channel, and the water inlet includes a cold water port and a hot water port; the water inlet includes a cold water port and a hot water port; The cold water channel communicates with the cold water port, and the hot water channel communicates with the hot water port; the end of the cold water channel away from the cold water port and the end of the hot water channel far away from the hot water port face the same direction.
The axial water-inlet dual-way single-control valve core according to claim 1, characterized in that: the direction of the water outlet is the same as that of the water inlet.
According to claim 1, 2 or 3, an axial water-inlet dual-way single-control valve core is characterized in that: the auxiliary water outlet faces the water outlet or the water inlet, or faces the diameter of the valve housing or the valve seat. direction.
The axial water-inlet dual-way single-control valve core according to claim 1, characterized in that: the end of the water inlet is far away from the water inlet, the end of the water outlet is far away from the water outlet, and the auxiliary water outlet The inner wall of the end far away from the water outlet is provided with internal threads.
The axial water-inlet dual-way single-control valve core according to claim 5, wherein the internal thread and the valve seat are integrally formed by injection molding.
The axial water-inlet dual-way single-control valve core according to claim 5, wherein the internal thread is provided on a threaded sleeve, and the threaded sleeve is integrally connected with the valve seat by injection molding.
The axial water-inlet dual-way single-control valve core according to claim 1, characterized in that: the large-diameter end of the tapered nozzle is fixed to the inner wall of the water outlet by gluing or welding.
The axial water-inlet dual-way single-control valve core according to claim 1, characterized in that: the tapered nozzle and the valve seat are integrally formed by injection molding.