Self-adaptive water stop two-way valve

Abstract

The utility model discloses a self-adaptive water stop two-way valve which comprises a first shell and a second shell, the first shell and the second shell are installed in a matched mode, a cavity is formed between the first shell and the second shell, the first shell is provided with a first pipeline communicated with the outside and the cavity, and a water stop assembly is arranged in the cavity. The water stopping assembly comprises a valve element, a transmission rod and a balancing weight which are sequentially connected from top to bottom, the first shell and the second shell are each provided with a rotating shaft, the two rotating shafts are rotationally connected with the transmission rod, and the valve element blocks a connector between the first branch and the cavity. Through rotation of the water stop assembly, the technical effect of self-adaptive opening or closing of the valve is achieved, meanwhile, installation in a narrow space is facilitated, and installation of other pipelines is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of two-way valves, in particular to an adaptive water-stop two-way valve. Background Art

[0002] Two-way valve, a term for fluid control components, is a control valve with two pipelines. Existing two-way valves are generally provided with a raised valve core assembly. For a narrow space in a building, this type of two-way valve is inconvenient to install and inconvenient for daily control. For this reason, a water-stop two-way valve that can open or close the valve can be automatically controlled; the existing water-stop two-way valves are mainly water-stop valves with a Y-shaped structure and water-stop valves with a built-in spring valve core, but the water-stop valve with a Y-shaped structure is also difficult to install in a narrow space, and may also affect the installation of other pipelines, and the water-stop valve with a built-in spring valve core has the following problems: if the pressure in the pipeline system is too high, the spring may be plastically deformed, affecting the water-stopping effect, and when the water flow is transported in the pipeline system, the water flow will cause water erosion on the spring, accelerating the reduction of the service life of the valve, even if the spring is coated with an anti-corrosion coating, the spring needs to frequently achieve elastic deformation, which is easy to cause the anti-corrosion coating to wear or even fall off.

[0003] Therefore, a new structure of adaptive water-stop two-way valve which can solve the above problems is needed. Utility Model Content

[0004] The purpose of the utility model is to provide an adaptive water-stop two-way valve, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adaptive water-stop two-way valve, comprising a first shell and a second shell, the first shell and the second shell are installed in cooperation, and a cavity is formed between the first shell and the second shell, the first shell is provided with a first pipeline connecting the outside and the cavity, a water-stop assembly is provided in the cavity, the water-stop assembly includes a valve core, a transmission rod and a counterweight block connected in sequence from top to bottom, the first shell and the second shell are both provided with a rotating shaft, the two rotating shafts are rotatably connected to the transmission rod, and the valve core blocks the interface between the first branch and the cavity.

[0006] Preferably, the contact surface of the valve core is arc-shaped.

[0007] Preferably, the transmission rod is provided with a connecting portion, the connecting portion is provided with two countersunk holes, and the two rotating shafts are respectively inserted into the two countersunk holes.

[0008] Preferably, the second shell is provided with a second pipeline connecting the outside and the cavity.

[0009] Preferably, the first shell and the second shell are both semi-cylindrical, and the first shell and the second shell are assembled together to form a cylindrical shape.

[0010] Preferably, the first shell and the second shell are both provided with mounting parts, each mounting part is provided with a mounting hole, the mounting parts on the first shell are aligned one by one with the mounting parts on the second shell, and are locked and fixed by locking screws.

[0011] Preferably, the surface of the counterweight block is coated with an anti-corrosion coating.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a water-stop component, and the transmission rod can drive the valve core and the counterweight block to rotate with the rotating shaft as the axis. When water flows in from the first pipeline, the water pressure will open the valve core, and the water can enter the cavity to achieve the effect of adaptively opening the valve. When there is no water pressure or water flow in the first pipeline, the counterweight block rotates to the bottom under the action of gravity, and the valve core is located at the top and blocks the interface between the first pipeline and the cavity, thereby realizing the water-stop function. The water-stop component is not easy to deform and is difficult to be eroded by water, thereby improving the service life.

[0014] 2. The utility model sets a first shell and a second shell, and the first shell and the second shell are installed in coordination with each other and cover the water-stop assembly, thereby preventing the presence of a protruding valve core assembly and other branches similar to a Y-shaped structure, making it easy to install in a narrow space without affecting the installation of other pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "horizontal", "vertical", "top", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] See also Figures 1 to 3 The utility model provides an embodiment: an adaptive water-stop two-way valve, comprising a first shell 10 and a second shell 20 that are installed in cooperation, the first shell 10 and the second shell 20 are both provided with a mounting portion 9, each mounting portion 9 is provided with a mounting hole, the mounting portion 9 on the first shell 10 is aligned with the mounting portion 9 on the second shell 20, and is fixed by a locking screw, and a cavity is formed between the first shell 10 and the second shell 20, the first shell 10 is provided with a first pipeline 11 connecting the outside and the cavity, and the second shell A second pipeline 21 connecting the outside and the cavity is arranged on the body 20, wherein the first pipeline 11 is the water inlet end of the water-stop two-way valve, and the second pipeline 21 is the water outlet end of the water-stop two-way valve. A water-stop component is arranged in the cavity, and the water-stop component is mainly used to realize the opening and closing of the valve. The water-stop component includes a valve core 1, a transmission rod 2 and a counterweight block 3 connected in sequence from top to bottom. The first shell 10 and the second shell 20 are both provided with a rotating shaft 8, and the two rotating shafts 8 are rotatably connected to the transmission rod 2. The valve core 1 blocks the interface between the first branch 11 and the cavity.

[0021] When water flows in from the first pipeline 11, the water pressure opens the valve core 1, and the transmission rod 2 drives the valve core 1 and the counterweight 3 to rotate with the rotating shaft 8 as the axis. The water flows into the cavity and flows out through the second pipeline 21. At this time, the first pipeline 11 and the second pipeline 21 are interconnected to achieve the effect of adaptively opening the valve; when there is no water input into the first pipeline 11 or when the water in the second pipeline 21 flows back, the counterweight 3 rotates to the bottom under the action of gravity, and the valve core 1 is located at the top, and blocks the interface between the first pipeline 11 and the cavity, thereby realizing the adaptive water-stopping function.

[0022] Furthermore, the first shell 10 and the second shell 20 cover the water-stop assembly to prevent the presence of a protruding valve core assembly and other branches similar to a Y-shaped structure, making it easy to install in a narrow space without affecting the installation of other pipelines; and the water-stop assembly has no spring components to prevent the water-stop effect from being reduced or the service life from being shortened due to plastic deformation or water erosion.

[0023] The contact surface of the valve core 1 is in an arc shape. This structure allows the valve core 1 to be partially inserted into the first pipeline 11, thereby increasing the contact area between the valve core 1 and the first pipeline 11 and improving the sealing effect and water-stopping function.

[0024] The transmission rod 2 is provided with a connecting portion 7, and the connecting portion 7 is provided with two countersunk holes 6. Two rotating shafts 8 are respectively inserted into the two countersunk holes 6 to increase the connection depth and improve the connection stability. At the same time, the transmission rod 2 and the rotating shaft 8 rotate in a balanced manner.

[0025] The first shell 10 and the second shell 20 are both semi-cylindrical, and the first shell 10 and the second shell 20 are installed together to form a cylindrical shape. This structure facilitates the installation between the rotating shaft 8 and the connecting part 7. The rotating shaft 8 can be inserted into the countersunk hole 6 from both sides, and the cylindrical structure does not affect the installation of other pipelines; further, the first shell 10 and the second shell 20 can be other shapes that match each other. The above is only one embodiment of the first shell 10 and the second shell 20, and does not limit the actual shape of the first shell 10 and the second shell 20.

[0026] If the counterweight block 3 is made of metal material, the speed of water erosion can be reduced by applying an anti-corrosion coating on the surface of the counterweight block 2. The counterweight block 3 does not need to be elastically deformed, which can reduce the possibility of wear or shedding of the anti-corrosion coating, thereby increasing its service life.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adaptive water-stop two-way valve, comprising a first housing and a second housing, characterized in that: The first shell and the second shell are installed in cooperation with each other, and a cavity is formed between the first shell and the second shell. The first shell is provided with a first pipeline connecting the outside and the cavity. A water-stop assembly is provided in the cavity. The water-stop assembly includes a valve core, a transmission rod and a counterweight block connected in sequence from top to bottom. The first shell and the second shell are both provided with a rotating shaft. The two rotating shafts are rotatably connected to the transmission rod. The valve core blocks the interface between the first branch and the cavity.

2. The adaptive water-stop two-way valve according to claim 1, characterized in that: The contact surface of the valve core is in an arc shape.

3. The adaptive water-stop two-way valve according to claim 1, characterized in that: The transmission rod is provided with a connecting portion, and the connecting portion is provided with two countersunk holes, and the two rotating shafts are respectively inserted into the two countersunk holes.

4. The adaptive water-stop two-way valve according to claim 1, characterized in that: The second shell is provided with a second pipeline connecting the outside and the cavity.

5. The adaptive water-stop two-way valve according to claim 1, characterized in that: The first shell and the second shell are both semi-cylindrical, and the first shell and the second shell are assembled together to form a cylindrical shape.

6. An adaptive water-stop two-way valve according to any one of claims 1 or 5, characterized in that: The first shell and the second shell are both provided with mounting parts, each mounting part is provided with a mounting hole, the mounting parts on the first shell are aligned one by one with the mounting parts on the second shell, and are locked and fixed by locking screws.

7. The adaptive water-stop two-way valve according to claim 1, characterized in that: The surface of the counterweight block is coated with an anti-corrosion coating.

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