Direct-acting floating ball valve

Abstract

The utility model relates to a direct-acting type floating ball valve which comprises a mounting flange, a ball valve body and a ball valve body. The water inlet pipe is arranged on the mounting flange; the water inlet valve element is arranged in the water inlet pipe, and a water inlet hole is formed in the water inlet valve element; the water outlet valve element is arranged in the water inlet pipe, the water outlet valve element is located below the water inlet valve element, and a plurality of water outlet holes are formed in the water outlet valve element; the valve rod penetrates through the water outlet valve element and is in sliding connection with the water outlet valve element; the sealing gasket is arranged in the water inlet pipe and fixedly connected with the top end of the valve rod, and the sealing gasket is located between the water inlet valve element and the water outlet valve element; the floating ball is arranged at the lower end of the valve rod, and the floating ball is located below the water inlet pipe; the moving range of the floating ball and the valve rod can be reduced, so that the device can be used in a narrow space, the device can adjust the position of the floating ball according to needs, stepless adjustment is conducted on the preset water level of the water tank, the applicability of the device is enhanced, and practicability is high.

Description

Technical Field

[0001] This application relates to the technical field of water tank valves, and particularly to a direct-acting float valve. Background Art

[0002] Currently, as a valve composed of key components such as a bent arm and a float ball, the float valve is widely used in automatically controlling the liquid level of a water tower or a water tank. It is favored for its simple maintenance, flexible operation, strong durability, high liquid level control accuracy, water level control not affected by water pressure, and tight opening and closing performance, effectively preventing water leakage.

[0003] However, in the prior art, although the float valve has a simple structure and is easy to operate, the switching method of its bent arm swing requires a large movement space, which limits its application in narrow spaces and brings inconvenience to actual operation.

[0004] In view of the above problems, a direct-acting float valve is now designed. Summary of the Utility Model

[0005] Embodiments of this application provide a direct-acting float valve to solve the problem that the traditional float valve in related technologies is not convenient to use in narrow spaces.

[0006] In a first aspect, a direct-acting float valve is provided, which includes:

[0007] An installation flange for installing on the water tank;

[0008] A water inlet pipe provided on the installation flange;

[0009] A water inlet valve core provided in the water inlet pipe, and a water inlet hole is provided on the water inlet valve core;

[0010] A water outlet valve core provided in the water inlet pipe, the water outlet valve core is located below the water inlet valve core, and a plurality of water outlet holes are opened on the water outlet valve core;

[0011] A valve stem passing through the water outlet valve core and being slidably connected thereto;

[0012] A gasket provided in the water inlet pipe and fixedly connected to the top end of the valve stem, the gasket is located between the water inlet valve core and the water outlet valve core;

[0013] A float ball provided at the lower end of the valve stem, the float ball is located below the water inlet pipe.

[0014] In some embodiments, the water inlet pipe penetrates through the installation flange and is slidably connected thereto, an external thread is provided on the outer wall of the water inlet pipe, and an internal thread threadedly connected to the external thread is provided on the installation flange;

[0015] A nut is sleeved on the water inlet pipe, the nut is located above the installation flange, and the nut is threadedly connected to the external thread.

[0016] In some embodiments, the valve stem includes a connecting pipe, a sleeve, and a positioning assembly. The connecting pipe is provided at the upper end of the floating ball. The sleeve is sleeved on the connecting pipe and is slidably connected thereto. The top end of the sleeve is fixedly connected to the sealing gasket.

[0017] The positioning assembly is provided on the connecting pipe and is connected to the sleeve for connecting and fixing the sleeve and the connecting pipe.

[0018] In some embodiments, the positioning assembly includes a spring, a positioning block, and a plurality of positioning holes. The plurality of positioning holes are equidistantly formed in the sleeve. The positioning block is slidably disposed in the connecting pipe. The positioning block is located in one of the positioning holes and is matched therewith. The spring is disposed in the connecting pipe and is connected to the positioning block.

[0019] In some embodiments, the sealing gasket is frustum-shaped, and the diameter of one end of the sealing gasket close to the water inlet valve core is larger than the diameter of the other end of the sealing gasket.

[0020] In some embodiments, a plurality of the water outlet holes are evenly distributed in an annular shape on the water outlet valve core.

[0021] The embodiment of the present application provides a direct-acting floating ball valve. The present application can cooperate with the buoyancy force received by the floating ball and the gravity of the floating ball itself, so that the device can continuously supply water and cut off water to the water tank, so that the water in the water tank always maintains a set water level. At the same time, when the floating ball floats up and down, it can only move in a straight line in the vertical plane, so that the moving range of the floating ball and the valve stem can be reduced, so that the device can be used in a narrow space. And the device can adjust the position of the floating ball as needed, so as to perform stepless adjustment on the preset water level of the water tank, enhancing the applicability of the device and having strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the valve in the closed state provided by the embodiment of the present application;

[0024] Figure 2 It is a schematic structural diagram of the valve in the open state provided by the embodiment of the present application;

[0025] Figure 3 Provided by the embodiment of the present application Figure 2 The enlarged structural diagram at A in

[0026] In the figure: 1. Installation flange; 2. Water inlet pipe; 21. External thread; 3. Water inlet valve core; 31. Water inlet hole; 4. Water outlet valve core; 41. Water outlet hole; 5. Valve rod; 51. Connecting pipe; 52. Sleeve; 53. Positioning component; 531. Spring; 532. Positioning block; 533. Positioning hole; 6. Gasket; 7. Float ball; 8. Nut. Specific embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0028] The embodiments of the present application provide a direct-acting float valve, which can solve the problem that traditional float valves in related technologies are not convenient to use in narrow spaces.

[0029] Please refer to Figure 1 - Figure 2 , a direct-acting float valve, which includes: an installation flange 1, a water inlet pipe 2, a water inlet valve core 3, a water outlet valve core 4, a valve rod 5, a gasket 6, and a float ball 7. The installation flange 1 is used for installing on a water tank. The water inlet pipe 2 is arranged on the installation flange 1. The water inlet valve core 3 is arranged in the water inlet pipe 2. The water inlet valve core 3 is provided with a water inlet hole 31. The water outlet valve core 4 is arranged in the water inlet pipe 2. The water outlet valve core 4 is located below the water inlet valve core 3. The water outlet valve core 4 is provided with a plurality of water outlet holes 41;

[0030] The valve rod 5 penetrates through the water outlet valve core 4 and is slidably connected thereto. The gasket 6 is arranged in the water inlet pipe 2 and fixedly connected to the top end of the valve rod 5. The gasket 6 is located between the water inlet valve core 3 and the water outlet valve core 4. The float ball 7 is arranged at the lower end of the valve rod 5. The float ball 7 is located below the water inlet pipe 2;

[0031] During use, the device can be installed in the water tank through the mounting flange 1. In this way, the float ball 7 will fall due to gravity and pull the sealing gasket 6 downward through the valve rod 5, causing the sealing gasket 6 to land on the water outlet valve core 4. Then, the water inlet pipe 2 can be connected to the water supply equipment, and water will enter the water inlet pipe 2 and flow outwards from the water outlet hole 41 through the water inlet hole 31, thereby allowing water to enter the water tank. When the water level in the water tank gradually rises, the water will push the float ball 7 upward through buoyancy. In this way, the float ball 7 will push the sealing gasket 6 to gradually move upward through the valve rod 5. When the water level in the water tank reaches the set position, the float ball 7 floating to the highest position will push the sealing gasket 6 against the water inlet valve core 3, thereby blocking the water inlet hole 31 through the sealing gasket 6, blocking the water inlet pipe 2, and preventing the water inlet pipe 2 from discharging water;

[0032] When the water in the water tank is used until the water level drops, the float ball 7 will drop with the water level and drive the sealing gasket 6 to move downward away from the water inlet valve core 3 again. In this way, the water in the water inlet pipe 2 will flow out again through the water inlet hole 31 and the water outlet hole 41. By repeating this cycle, the device can continuously stop and supply water, keeping the water level in the water tank at the set level all the time;

[0033] At the same time, due to the restrictive effect of the sliding connection between the water outlet valve core 4 and the valve rod 5, the float ball 7 can only move in a straight line in the vertical plane during the up and down floating process. This can reduce the movement range of the float ball 7 and the valve rod 5, enabling the device to be used in a narrow space with strong practicability.

[0034] Specifically, in this embodiment, the water inlet pipe 2 passes through and is slidably connected to the mounting flange 1. The outer wall of the water inlet pipe 2 is provided with an external thread 21, and the mounting flange 1 is provided with an internal thread that is threadedly connected to the external thread 21. A nut 8 is sleeved on the water inlet pipe 2, and the nut 8 is located above the mounting flange 1 and is threadedly connected to the external thread 21;

[0035] During use, the operator can rotate the water inlet pipe 2 so that the water inlet pipe 2 moves up and down on the mounting flange 1 through the threaded connection between the external thread 21 and the internal thread, thereby adjusting the position of the float ball 7. Then, rotate the nut 8 so that the nut 8 moves up and down on the water inlet pipe 2 through the threaded connection with the external thread 21, making the nut 8 closely adhere to the mounting flange 1. In this way, the water inlet pipe 2 can be firmly fixed to the mounting flange 1 by the nut 8, preventing the water inlet pipe 2 from loosening from the mounting flange due to equipment vibration during use and affecting the use effect. When using this device, the position of the float ball 7 can be adjusted as needed, thereby performing stepless adjustment of the preset water level of the water tank, enhancing the applicability of the device and facilitating use.

[0036] Please refer to Figure 3, in this embodiment, the valve stem 5 includes a connecting pipe 51, a sleeve 52 and a positioning assembly 53. The connecting pipe 51 is arranged at the upper end of the floating ball 7. The sleeve 52 is sleeved on the connecting pipe 51 and is slidably connected thereto. The top end of the sleeve 52 is fixedly connected to the sealing gasket 6. The positioning assembly 53 is arranged on the connecting pipe 51 and is connected to the sleeve 52 for fixedly connecting the sleeve 52 and the connecting pipe 51;

[0037] When using this device, the staff can make the connecting pipe 51 slide within the sleeve 52 through the sliding connection between the sleeve 52 and the connecting pipe 51, so as to adjust the distance between the sealing gasket 6 and the floating ball 7. Then, the sleeve 52 and the connecting pipe 51 are fixed together through the positioning assembly 53. In this way, the staff can adjust the position of the floating ball 7 as needed, so as to adjust the water level of the water tank as needed, with strong practicability.

[0038] Further, in this embodiment, the positioning assembly 53 includes a spring 531, a positioning block 532 and a plurality of positioning holes 533. The plurality of positioning holes 533 are equidistantly arranged on the sleeve 52. The positioning block 532 is slidably arranged within the connecting pipe 51. The positioning block 532 is located within one of the positioning holes 533 and is matched therewith. The spring 531 is arranged within the connecting pipe 51 and is connected to the positioning block 532;

[0039] When it is necessary to adjust the overall length of the valve stem 5, the staff can push the positioning block 532 into the connecting pipe 51, so that the positioning block 532 retracts into the connecting pipe 51 and compresses the spring 531. Then, the staff can make the connecting pipe 51 slide within the sleeve 52. After adjusting the positions of the connecting pipe 51 and the sleeve 52, the positioning block 532 can be matched with the corresponding positioning hole 533. In this way, the limit on the positioning block 532 disappears, and it will pop outwards under the elastic force of the spring 531 and insert into the positioning hole 533. In this way, the connecting pipe 51 can be fixed within the sleeve 52 through the limiting cooperation between the positioning block 532 and the positioning hole 533;

[0040] In this way, the position of the floating ball 7 can be roughly adjusted by adjusting the length of the valve stem 5, and the position of the floating ball 7 can be finely adjusted through the cooperation between the internal thread on the mounting flange 1 and the external thread 21 on the water inlet pipe 2. In this way, through these two adjustment methods, not only can the adjustment range of the floating ball 7 be increased, but also the accuracy of the position adjustment of the floating ball 7 can be ensured, thereby enhancing the applicability of this device, facilitating the adjustment of the water level of the water tank, and having strong practicability.

[0041] Preferably, the sealing gasket 6 is frustum-shaped, and the diameter of one end of the sealing gasket 6 close to the water inlet valve core 3 is larger than the diameter of the other end of the sealing gasket 6;

[0042] In this way, the gasket 6 can better block the water inlet hole 31 while not affecting the water discharge of the water outlet hole 41, which facilitates the use.

[0043] Furthermore, several of the water outlet holes 41 are evenly distributed in a ring on the water outlet valve core 4;

[0044] In this way, the water discharge of multiple water outlet holes 41 can be more uniform, thereby ensuring the water discharge efficiency of the device and having strong practicability.

[0045] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0046] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0047] The above description is only the specific implementation manners of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. Direct-acting float valve, characterized in that, It includes: An installation flange (1) for installing on a water tank; An inlet pipe (2) provided on the installation flange (1); An inlet valve core (3) provided in the inlet pipe (2), and an inlet hole (31) is provided on the inlet valve core (3); An outlet valve core (4) provided in the inlet pipe (2), the outlet valve core (4) is located below the inlet valve core (3), and a plurality of outlet holes (41) are formed on the outlet valve core (4); A valve stem (5) passing through the outlet valve core (4) and slidably connected thereto; A gasket (6) provided in the inlet pipe (2) and fixedly connected to the top end of the valve stem (5), and the gasket (6) is located between the inlet valve core (3) and the outlet valve core (4); A floating ball (7) provided at the lower end of the valve stem (5), and the floating ball (7) is located below the inlet pipe (2).

2. The direct-acting float valve according to claim 1, characterized in that: The inlet pipe (2) passes through the installation flange (1) and is slidably connected thereto. An external thread (21) is provided on the outer wall of the inlet pipe (2), and an internal thread threadedly connected to the external thread (21) is provided on the installation flange (1); A nut (8) is sleeved on the inlet pipe (2), the nut (8) is located at the upper end of the installation flange (1), and the nut (8) is threadedly connected to the external thread (21).

3. The direct-acting float valve according to claim 1, characterized in that: The valve stem (5) includes a connecting pipe (51), a sleeve (52) and a positioning assembly (53). The connecting pipe (51) is provided at the upper end of the floating ball (7), the sleeve (52) is sleeved on the connecting pipe (51) and is slidably connected thereto, and the top end of the sleeve (52) is fixedly connected to the gasket (6); The positioning assembly (53) is provided on the connecting pipe (51) and is connected to the sleeve (52) for connecting and fixing the sleeve (52) and the connecting pipe (51).

4. The direct-acting float valve according to claim 3, characterized in that: The positioning assembly (53) includes a spring (531), a positioning block (532) and a plurality of positioning holes (533). The plurality of positioning holes (533) are equidistantly formed on the sleeve (52), the positioning block (532) is slidably arranged in the connecting pipe (51), the positioning block (532) is located in one of the positioning holes (533) and is matched with it, and the spring (531) is provided in the connecting pipe (51) and is connected to the positioning block (532).

5. The direct-acting float valve according to claim 1, characterized in that: The gasket (6) is frustum-shaped, and the diameter of one end of the gasket (6) close to the inlet valve core (3) is larger than the diameter of the other end of the gasket (6).

6. The direct-acting float valve according to claim 1, characterized in that: The plurality of outlet holes (41) are uniformly distributed in a ring on the outlet valve core (4).

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