Linkage type water valve and spray head

Abstract

A linkage type water valve comprises a valve body, a valve element, a handle and a sealing piece, a vertical through hole is formed in the center of the valve element, a side hole communicated with the through hole is formed in the side wall of the valve element, the side hole is communicated with a water inlet cavity, the through hole is communicated with a water outlet cavity, and a valve rod extending in the vertical direction is arranged at the joint of the through hole and the side hole. A hinged shaft extending in the horizontal direction is arranged at the upper end of the valve rod and hinged to the handle, a rod hole for containing the valve rod is formed in the center of the valve element, a through groove is formed in the upper end of the valve element so that the hinged shaft can move up and down by a certain distance in the through groove and drive the valve rod to move up and down, and when the valve rod moves downwards to the lowest position, the side hole and the through hole are isolated by the valve rod. When the valve rod moves upwards, the side hole is communicated with the through hole, so that resistance is greatly reduced when the valve element is opened, the whole process is smoother, the use experience effect is good, external force needed for opening the valve element can be reduced, impact of the external force on the water valve is reduced, and the service life of the water valve is prolonged.

Description

Technical Field

[0001] The utility model belongs to the fields of water valves and nozzles, and particularly relates to a linkage water valve and a nozzle. Background Art

[0002] The water valve is the core component for controlling the water flow of the nozzle. Whether the use of a nozzle is comfortable and convenient is greatly affected by the structure of the water valve. With the improvement of living standards, consumers' requirements for the use of water valves are also getting higher and higher.

[0003] The Chinese patent publication number is "CN203363199U" and the patent name is "A water sealing core assembly and a nozzle", which discloses a structure of a water valve. This structure has the advantages of simple operation and water conservation. However, a spring is provided inside this water valve. When opening the water valve in the closed state under the action of water pressure, a relatively large resistance is encountered. After the water valve is opened, the resistance rapidly decreases, resulting in a jerky feeling during the use of the water valve and a poor user experience. Summary of the Utility Model

[0004] Aiming at the above-mentioned prior art, the purpose of the present utility model is to provide a linkage water valve and a nozzle with a better user experience.

[0005] The technical solution of the present utility model is realized as follows: A linkage water valve includes a valve body, a valve core, a handle, and a seal. The handle is installed above the valve body or the valve core in a manner that can rotate relative to the valve body. The handle is hinged to the upper end of the valve core so that the handle can drive the valve core to move up and down to realize the switching of the opening and closing states of the valve core. The seal is arranged between the valve body and the valve core to ensure the sealing performance at the contact position between the valve body and the valve core and divide the valve body into a water inlet cavity and a water outlet cavity. A vertical guide through hole is provided at the central position of the valve core. A side hole communicating with the guide through hole is provided on the side wall of the valve core. The side hole communicates with the water inlet cavity, and the guide through hole communicates with the water outlet cavity. A valve rod extending vertically is provided at the intersection position of the guide through hole and the side hole. A horizontally extending hinge shaft is provided at the upper end of the valve rod. The hinge shaft is hinged to the handle. A rod hole is provided at the center of the valve core to accommodate the valve rod. A through slot is provided at the upper end of the valve core so that the hinge shaft can move up and down freely in the through slot for a certain distance and then abut against the through slot and drive the valve rod to move up and down. When the valve rod moves down to the lowest position, the side hole and the guide through hole are isolated by the valve rod. When the valve rod moves up, the side hole and the guide through hole are communicated.

[0006] The beneficial effects of such a design are as follows: When turning the handle upward to open the water valve, initially, when the hinge shaft does not abut against the upper end of the through slot, the valve core does not move. As the handle drives the hinge shaft to move upward, the valve stem moves upward. When the side hole communicates with the guiding through hole, the water inlet cavity communicates with the water outlet cavity, and the water pressure in the water inlet cavity is released. At this time, when the handle is further rotated, the hinge shaft abuts against the upper end of the through slot, driving the valve core and the valve stem to move upward synchronously, making the water inlet cavity and the water outlet cavity completely communicate. Since a part of the pressure in the water inlet cavity is released before the valve core moves, the resistance to the movement of the valve core is greatly reduced. In this way, the resistance when opening the valve core is greatly reduced, the whole process is smoother, the use experience effect is better, the external force required to open the valve core can be reduced, the impact of the external force on the water valve can be reduced, and the service life of the water valve can be extended.

[0007] Furthermore, the handle has a certain mass, so that the handle can move the valve stem downward to the closed position under the action of gravity. In this way, there is no need to set other reset structures on the valve stem, and the valve can be reset and closed by relying on gravity.

[0008] Furthermore, the radius of the rod hole is greater than the radius of the guiding through hole, so that there is a stepped surface at the connection position between the rod hole and the guiding through hole. The valve stem abuts against the stepped surface to realize the closing of the water valve.

[0009] Furthermore, a sealing ring is provided above the stepped surface, so that there is better sealing performance and buffering effect.

[0010] Furthermore, a sealing sleeve is provided at the lower end of the valve stem to match the rod hole, so that one component can achieve the sealing effect at multiple positions.

[0011] Furthermore, a dovetail groove is provided at the upper end of the valve stem to be tenoned with the side wall of the hinge shaft, which is more convenient for installation. When the radius of the rod hole is equal to the radius of the guiding through hole, the valve stem can be directly installed from the guiding through hole.

[0012] Furthermore, the valve core adopts a split structure including a core body and an end cover. The core body and the end cover are fixed together by fasteners or welding. The split structure is convenient for installation, and they are fixed together after the valve stem is installed.

[0013] Furthermore, a first piston ring that moves synchronously with the valve stem is provided on the valve stem. The periphery of the first piston ring cooperates with the guiding through hole, and a second piston ring that is fixed is provided in the guiding through hole. The inner wall of the second piston ring cooperates with the valve stem. Multiple piston rings have better sealing performance.

[0014] Furthermore, the valve body is provided with an upper valve seat and a lower valve seat. The upper valve seat and the lower valve seat are connected by threads, the lower valve seat and the valve body are connected by threads. The upper valve seat is hermetically connected to the valve body through a first sealing member, the lower valve seat is hermetically connected to the valve body through a second sealing member, the valve core is hermetically connected to the upper valve seat through a third sealing member, and the valve core is hermetically connected to the lower valve seat through a fourth sealing member. Such a design is more convenient for the manufacture of the valve body and the valve seat.

[0015] A nozzle, at least including the above-mentioned linkage water valve, is more labor-saving and has a better user experience when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a three-dimensional schematic diagram of a nozzle of the present invention;

[0017] Figure 2 FIG. is a front schematic diagram of a nozzle of the present invention;

[0018] Figure 3 FIG. is a semi-sectional schematic diagram of a nozzle of the present invention;

[0019] Figure 4 is Figure 3 a partially enlarged schematic diagram at A in

[0020] Figure 5 For another embodiment Figure 3 a partially enlarged schematic diagram at A in

[0021] Figure 6 FIG. is an installation schematic diagram of a valve seat and a valve core of a linkage water valve of the present invention;

[0022] Figure 7 FIG. is an installation schematic diagram of a valve core and a handle of a linkage water valve of the present invention;

[0023] Figure 8 FIG. is a three-dimensional schematic diagram of a valve core of a linkage water valve of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] As needed, detailed embodiments of the present invention are disclosed herein, but it should be understood that the disclosed embodiments are only exemplary of the present invention, and the present invention can be implemented in different and alternative forms. The drawings are not necessarily drawn to scale, and some features may be exaggerated or reduced to show details of specific components. Therefore, the specific structures and functional details disclosed herein should not be construed as limiting, but only as a representative basis for teaching those skilled in the art to implement the present invention differently. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0025] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 8As shown, a linkage water valve comprises a valve body 1, a valve core 2, a handle 3 and a sealing member 4. The handle 3 is mounted on the valve body 1 or the valve core 2 in a rotatable manner relative to the valve body 1. The handle 3 is hinged to the upper end of the valve core 2 so that the handle 3 can drive the valve core 2 to move up and down to switch the open and closed states of the valve core 2. The sealing member 4 is arranged between the valve body 1 and the valve core 2 to ensure the sealing of the contact position between the valve body 1 and the valve core 2 and to separate the valve body 1 into a water inlet chamber 5 and a water outlet chamber 6. A vertical conducting hole 21 is arranged at the center of the valve core 2. The conducting hole 21 can be directly provided with a through hole. A side hole 22 connected to the conducting hole 21 is arranged on the side wall of the valve core 2. A plurality of side holes 22 can be designed. The side holes 22 are connected to the water inlet chamber 5. The conducting hole 21 is connected with the water outlet chamber 6, and a valve stem 23 extending in the vertical direction is provided at the intersection of the conducting hole 21 and the side hole 22. The valve stem 23 is provided with a sealing structure so that the valve stem 23 can be sealed with the conducting hole 21 or the side hole 22. A hinge shaft 24 extending in the horizontal direction is provided at the upper end of the valve stem 23. The hinge shaft 24 is hinged with the handle 3. A rod hole 25 is provided at the center of the valve core 2 to accommodate the valve stem 23. A through groove 7 is provided at the upper end of the valve core 2 so that the hinge shaft 24 can freely move up and down in the through groove 7 for a certain distance, and then abut against the through groove 7 and drive the valve stem 23 to move up and down. When the valve stem 23 moves downward to the lowest position, the side hole 22 and the conducting hole 21 are isolated by the valve stem 23. You can refer to Figure 5 At this time, the valve is in a closed state. When the valve stem 23 moves upward, the side hole 22 is connected to the conduction hole 21. Figure 4 , the valve core 2 continues to move upward at this position, and the valve stem 23 begins to move in conjunction with each other, and the valve core 2 can be opened by relying on the handle 3.

[0026] like Figure 3 As shown, the handle 3 is made of metal and has a certain mass so that the handle 3 can move the valve stem 23 downward to the closed position under the action of gravity. At present, the resistance of the 0.15MPa water pressure test is less than 1 Newton, so handles above 0.1KG can meet the needs. In particular, the heavier the handle 33 of the handle 3, the greater the pressure, and the valve stem 23 is further amplified by the lever pressure. A spring or other structure can also be set to achieve reset, such as using liquid pressure to achieve reset, but such a design occupies a large space.

[0027] like Figure 3 and Figure 5 As shown, the radius of the rod hole 25 is greater than the radius of the conducting hole 21 so that a step surface 29 is provided at the connecting position of the rod hole 25 and the conducting hole 21 , and the valve stem 23 abuts against the step surface 29 to close the water valve.

[0028] like Figure 5 As shown, a sealing ring 30 is provided above the stepped surface 29 .

[0029] like Figure 4As shown, a sealing sleeve 8 is provided at the lower end of the valve stem 23 to match the rod hole 25, and a dovetail groove 26 is provided at the upper end of the valve stem 23 to be tenoned with the side wall of the hinge shaft 24.

[0030] As Figure 5 shown, the valve core 2 adopts a split structure including a core body 27 and an end cover 28, and the core body 27 and the end cover 28 are fixed together by fasteners or welding.

[0031] As Figure 5 shown, the valve stem 23 is provided with a first piston ring 31 that moves synchronously with the valve stem 23. The outer periphery of the first piston ring 31 cooperates with the guide through hole 21, and a fixed second piston ring 32 is provided in the guide through hole 21. The inner wall of the second piston ring 32 cooperates with the valve stem 23.

[0032] As Figure 5 、 Figure 6 and Figure 7 shown, the valve body 1 is provided with an upper valve seat 11 and a lower valve seat 12. The upper valve seat 11 is threadedly connected to the lower valve seat 12, and the lower valve seat 12 is threadedly connected to the valve body 1. The upper valve seat 11 is hermetically connected to the valve body 1 through a first seal 41, and the lower valve seat 12 is hermetically connected to the valve body 1 through a second seal 42. The valve core 2 is hermetically connected to the upper valve seat 11 through a third seal 43, and the valve core 2 is hermetically connected to the lower valve seat 12 through a fourth seal 44.

[0033] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7 shown, a spray head includes at least the above-mentioned linkage water valve.

Claims

1. A linkage water valve, comprising a valve body (1), a valve core (2), a handle (3) and a seal (4). The handle (3) is mounted above the valve body (1) or the valve core (2) in a manner that can rotate relative to the valve body (1). The handle (3) is hinged to the upper end of the valve core (2) such that the handle (3) can drive the valve core (2) to move up and down to realize the switching of the opening and closing states of the valve core (2). The seal (4) is arranged between the valve body (1) and the valve core (2) to ensure the sealing performance of the contact position between the valve body (1) and the valve core (2) and divide the valve body (1) into a water inlet cavity (5) and a water outlet cavity (6). It is characterized in that: A vertical through hole (21) is provided at the central position of the valve core (2). A side hole (22) communicating with the through hole (21) is provided on the side wall of the valve core (2). The side hole (22) communicates with the water inlet cavity (5), and the through hole (21) communicates with the water outlet cavity (6). A valve rod (23) extending in the vertical direction is provided at the intersection position of the through hole (21) and the side hole (22). A hinge shaft (24) extending in the horizontal direction is provided at the upper end of the valve rod (23). The hinge shaft (24) is hinged to the handle (3). A rod hole (25) is provided at the center of the valve core (2) to accommodate the valve rod (23). A through groove (7) is provided at the upper end of the valve core (2) such that the hinge shaft (24) can move up and down freely in the through groove (7) for a certain distance and then abut against the through groove (7) to drive the valve rod (23) to move up and down. When the valve rod (23) moves down to the lowest position, the side hole (22) and the through hole (21) are isolated by the valve rod (23). When the valve rod (23) moves up, the side hole (22) communicates with the through hole (21).

2. The interlocking water valve according to claim 1, wherein: The handle (3) has a certain mass such that the handle (3) can move the valve rod (23) downward to the closed position under the action of gravity.

3. The linkage water valve according to claim 1, wherein: The radius of the rod hole (25) is larger than the radius of the through hole (21) such that a stepped surface (29) is formed at the connection position between the rod hole (25) and the through hole (21). The valve rod (23) abuts against the stepped surface (29) to realize the closing of the linkage water valve.

4. The linked water valve according to claim 3, wherein: A sealing ring (30) is provided above the stepped surface (29).

5. The linkage water valve according to claim 1, wherein: A sealing sleeve (8) matching the rod hole (25) is provided at the lower end of the valve rod (23).

6. The interlocking water valve according to claim 1, characterized in that: A dovetail groove (26) is provided at the upper end of the valve rod (23) and is tenoned with the side wall of the hinge shaft (24).

7. The interlocking water valve according to claim 1, wherein: The valve core (2) adopts a split structure and includes a core body (27) and an end cover (28). The core body (27) and the end cover (28) are fixed together by fasteners or welding.

8. The interlocking water valve according to claim 1, wherein: A first piston ring (31) that moves synchronously with the valve rod (23) is provided on the valve rod (23). The outer periphery of the first piston ring (31) cooperates with the through hole (21). A second piston ring (32) that is fixed is provided in the through hole (21). The inner wall of the second piston ring (32) cooperates with the valve rod (23).

9. The linkage water valve according to any one of claims 1-8, characterized in that: The valve body (1) is provided with an upper valve seat (11) and a lower valve seat (12). The upper valve seat (11) is threadedly connected to the lower valve seat (12), and the lower valve seat (12) is threadedly connected to the valve body (1). The upper valve seat (11) is hermetically connected to the valve body (1) through a first seal (41), and the lower valve seat (12) is hermetically connected to the valve body (1) through a second seal (42). The valve core (2) is hermetically connected to the upper valve seat (11) through a third seal (43), and the valve core (2) is hermetically connected to the lower valve seat (12) through a fourth seal (44).

10. A nozzle, characterized in that: At least including the linked water valve according to any one of claims 1-9.

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