Adjustable float valve

Abstract

The utility model discloses an adjustable float ball valve relates to the float ball valve field, including the valve main part for controlling the flow of medium, and one end of valve main part is provided with the connecting pipe, the protection shell is located the side of connecting pipe away from the valve main part, and the inside of protection shell is provided with the water box, and one end of water box is connected with connecting pipe through the flexible pipeline, and the other end of water box is provided with the water outlet pipe, the float ball trigger mechanism is located the bottom of water box, and when liquid level reaches the preset height, will signal transmission to external controller, the trigger adjustment mechanism is located the top of water box and is located on the protection shell, is used for adjusting the height of float ball trigger mechanism. The utility model can realize the accurate control to liquid level height, and is convenient for according to different working condition demand and carries out the quick flexible adjustment again, expands the amplitude of adjustment, improved the precision of adjustment to the convenience of operation, has good application reliability and practicality.

Description

Technical Field

[0001] This utility model relates to the field of float valves, specifically to an adjustable float valve. Background Technology

[0002] A float valve is a widely used automatic water inlet and outlet control device in liquid storage devices. It typically controls the opening and closing of the valve by the rise and fall of a float. When the liquid level rises to a preset height, the float rises with the liquid level and drives the valve body to close, thus stopping water inflow. When the liquid level drops, the float sinks, causing the valve body to open, allowing liquid to flow back into the tank or pool, maintaining a relatively stable liquid level. These products are widely used in domestic water supply systems, industrial container water level control, and agricultural irrigation.

[0003] Different application scenarios often have different requirements for the height of liquid level control. For example, in domestic water supply, to avoid frequent opening and closing, it is desirable to be able to flexibly adjust the liquid level. Based on this requirement, adjustable float valves have been developed, allowing users to set the installation position of the float according to actual needs, thereby changing the water level corresponding to the valve opening and closing.

[0004] Most existing adjustable float valves achieve float position adjustment through mechanical connections. While the structure is relatively simple, it still has some shortcomings in practical applications:

[0005] (1) Limited adjustment range: The float adjustment range of most existing products is small, which often makes it difficult to meet the needs when users need to change the water level height over a large range.

[0006] (2) Low adjustment accuracy: Some structures cannot achieve continuous adjustment and can only rely on a limited range, which may result in insufficient precision in controlling the liquid level.

[0007] (4) Inconvenient to operate: Some designs require tools to make adjustments, which is not flexible enough and not conducive to users making quick adjustments according to the scenario.

[0008] Existing adjustable float valves have a small adjustment range and the accuracy needs to be improved when adjusting the position of the float.

[0009] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0010] In view of the problems in the related technologies, this utility model proposes an adjustable float valve to overcome the above-mentioned technical problems existing in the existing related technologies.

[0011] Therefore, the specific technical solution adopted by this utility model is as follows:

[0012] An adjustable float valve includes:

[0013] The valve body is used to control the flow of the medium, and a connecting pipe is provided at one end of the valve body; the protective shell is located on the side of the connecting pipe away from the valve body, and a water box is provided inside the protective shell. One end of the water box is connected to the connecting pipe through a flexible pipe, and the other end of the water box is provided with a water outlet pipe; the float triggering mechanism is located at the bottom of the water box, and is used to transmit a signal to the external controller when the liquid level reaches a preset height; the trigger adjustment mechanism is located at the top of the water box and on the protective shell, and is used to adjust the height of the float triggering mechanism.

[0014] Furthermore, in order to control the valve body and cut off the liquid, the float triggering mechanism includes a switch housing located at the bottom of the water box, a contact switch located at the top of the inner part of the switch housing; a fixing plate located at the bottom of the switch housing, a connecting rod inserted through the middle of the fixing plate, a stop block located at the top of the connecting rod inside the switch housing, a float located at the bottom of the connecting rod; and a sealing ring located on the outer side of the connecting rod at the center of the fixing plate.

[0015] Furthermore, to enable stepless height adjustment of the float triggering mechanism, the triggering adjustment mechanism includes a screw threaded to the top of the protective shell, the bottom end of which is connected to the top of the water tank, and a handle at the top of the screw; a protrusion at the top of the water tank, a groove in the middle of the protrusion, a connector at the bottom of the screw located within the groove, a cover plate at the top of the connector, and the cover plate connected to the protrusion; several threaded holes at the top of the protrusion, bolts inside the cover plate, and bolts connected to the threaded holes; a groove on the inner wall of the protective shell, and a slider on the side wall of the water tank located within the groove.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) This utility model can achieve precise control of liquid level height and is easy to adjust quickly and flexibly according to different working conditions. Compared with the prior art, it expands the adjustment range, improves the adjustment accuracy, and improves the convenience of operation, and has good application reliability and practicality.

[0018] (2) By setting a float trigger mechanism, when the liquid level rises to a preset height, the contact switch inside the switch housing is triggered to achieve reliable signal output, which in turn controls the valve body through the controller to cut off the liquid. At the same time, the design of the fixing plate and sealing ring ensures the sealing and stability of the structure, thereby improving the accuracy and durability of liquid level detection.

[0019] (3) By setting a trigger adjustment mechanism, the water box can be driven to rise and fall smoothly along the slider in the slide groove, so as to realize stepless adjustment of the height of the float trigger mechanism. This not only expands the adjustment range but also improves the adjustment accuracy. At the same time, since the adjustment can be made by rotating the handle, the operation is more convenient and can be completed without tools. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an adjustable float valve according to an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the internal structure of the protective shell in an adjustable float valve according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the top cover of the water box in an adjustable float valve according to an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the float triggering mechanism in an adjustable float valve according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the float triggering mechanism in an adjustable float valve according to an embodiment of the present invention from another angle.

[0027] In the picture:

[0028] 1. Valve body; 2. Connecting pipe; 3. Protective shell; 4. Water box; 5. Flexible pipe; 6. Outlet pipe; 7. Float triggering mechanism; 701. Switch housing; 702. Contact switch; 703. Fixing plate; 704. Connecting rod; 705. Stop block; 706. Float; 707. Sealing ring; 8. Triggering adjustment mechanism; 801. Screw; 802. Handle; 803. Protrusion; 804. Groove; 805. Connector; 806. Cover plate; 807. Threaded hole; 808. Bolt; 809. Slide groove; 810. Slider. Detailed Implementation

[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] According to an embodiment of the present invention, an adjustable float valve is provided.

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-6 As shown, the adjustable float valve according to an embodiment of the present invention includes: a valve body 1 for controlling the flow of the medium, with a connecting pipe 2 at one end of the valve body 1; a protective shell 3 located on the side of the connecting pipe 2 away from the valve body 1, and a water box 4 disposed inside the protective shell 3, with one end of the water box 4 connected to the connecting pipe 2 via a flexible pipe 5, and a water outlet pipe 6 disposed at the other end of the water box 4; a float triggering mechanism 7 located at the bottom of the water box 4, for transmitting a signal to an external controller when the liquid level reaches a preset height; and a trigger adjustment mechanism 8 located at the top of the water box 4 and on the protective shell 3, for adjusting the height of the float triggering mechanism 7.

[0032] By employing the above-described solution, this invention enables precise control of the liquid level and facilitates rapid and flexible adjustments based on different operating conditions. Compared to existing technologies, it expands the adjustment range, improves adjustment accuracy, and enhances operational convenience, demonstrating excellent application reliability and practicality.

[0033] In one embodiment, the float triggering mechanism 7 includes a switch housing 701 disposed at the bottom of the water box 4, a contact switch 702 disposed at the top inner part of the switch housing 701, a fixing plate 703 disposed at the bottom of the switch housing 701, a connecting rod 704 inserted through the middle of the fixing plate 703, a stop block 705 disposed at the top of the connecting rod 704 and inside the switch housing 701, and a float 706 disposed at the bottom of the connecting rod 704; a sealing ring 707 disposed on the outer side of the connecting rod 704 and at the center of the fixing plate 703. The float 706 is made of plastic, such as polypropylene, polyethylene, or polytetrafluoroethylene.

[0034] By using the float trigger mechanism 7, when the liquid level rises to a preset height, the contact switch 702 inside the switch housing 701 is triggered, achieving a reliable signal output. This allows the controller to control the valve body 1 and cut off the liquid flow. Simultaneously, the design of the fixing plate 703 and the sealing ring 707 ensures the sealing and stability of the structure, thereby improving the accuracy and durability of the liquid level detection.

[0035] When the liquid level in water tank 4 rises, the float 706, under the action of buoyancy, moves the connecting rod 704 upward, which in turn pushes the stop 705 to contact and trigger the contact switch 702 inside the switch housing 701, thereby outputting a switch signal to the external controller; when the liquid level drops, the float 706 sinks, the connecting rod 704 moves downward accordingly, and the contact switch 702 opens, completing the signal feedback of the liquid level drop. The float triggering mechanism 7 operates stably and reliably thanks to the sealing protection of the fixing plate 703 and the sealing ring 707.

[0036] In one embodiment, the trigger adjustment mechanism 8 includes a screw 801 threadedly connected to the top of the protective shell 3, the bottom end of the screw 801 being connected to the top of the water box 4, and a handle 802 provided at the top of the screw 801; a protrusion 803 provided at the top of the water box 4, a groove 804 provided in the middle of the protrusion 803, a connector 805 provided at the bottom of the screw 801 and located within the groove 804, a cover plate 806 provided at the top of the connector 805, and the cover plate 806 being connected to the protrusion 803; a plurality of threaded holes 807 provided at the top of the protrusion 803, a bolt 808 provided within the cover plate 806, and the bolt 808 being connected to the threaded holes 807; a sliding groove 809 provided on the inner wall of the protective shell 3, and a slider 810 provided on the side wall of the water box 4 and located within the sliding groove 809.

[0037] By using the trigger adjustment mechanism 8, the water box 4 can be smoothly raised and lowered along the slider 810 within the slide groove 809, achieving stepless adjustment of the height of the float trigger mechanism 7. The cooperation between the screw 801 and the protrusion 803, combined with the limiting and locking design of the cover plate 806 and the bolt 808, makes the entire adjustment process more stable and reliable. This not only expands the adjustment range but also improves the adjustment accuracy. Furthermore, since adjustment can be made simply by rotating the handle, the operation is more convenient and can be completed without tools.

[0038] During operation, the user rotates the handle 802, causing the screw 801 to rotate. Since the connector 805 of the screw 801 is not fixed, the connector 805 and the screw 801 can rotate, thereby allowing the screw 801 to rise and fall. Through the cooperation of the screw 801, the protrusion 803, and the connector 805, the water box 4 can smoothly rise and fall along the slider 810 within the slide groove 809, thereby causing the overall position of the float trigger mechanism 7 below to change vertically, completing the stepless adjustment of the liquid level trigger point. At the same time, the locking fit structure of the cover plate 806 with the threaded hole 807 and the bolt 808 allows the screw 801 to be movably connected to the top of the water box 4.

[0039] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0040] During the operation of the adjustable float valve, the medium to be controlled first enters the connecting pipe 2 through the valve body 1, then enters the water box 4 through the flexible pipe 5, and flows to the external pool through the outlet pipe 6. When the liquid level in the pool gradually rises, the float 706 in the float triggering mechanism 7 rises with the change of liquid level to trigger the contact switch 702, thereby sending a switch signal to the external controller.

[0041] The stop block 705 actuates the contact switch 702 inside the switch housing 701, changing the on / off state of the contact switch 702 and sending an electrical signal to the external controller. Upon receiving the liquid level signal from the contact switch 702, the external controller processes and interprets the signal, and accordingly sends a control command to the electric drive component inside the valve body 1, causing the valve body 1 to automatically close or open. Thus, the change in the float position is converted into an electrical signal by the contact switch 702, amplified and logically judged by the controller, ultimately driving the electric valve to achieve automated control of liquid flow. The contact switch 702 internally consists of a spring plate and metal contacts. This invention uses a contact switch 702 based on existing mature technology; the detailed principle of the contact switch 702 will not be elaborated further.

[0042] Users can flexibly adjust the height of the water box 4 inside the protective shell 3 through the trigger adjustment mechanism 8 above (driven by components such as screw 801 and handle 802), indirectly changing the trigger point of the float trigger mechanism 7, thereby realizing the free setting of the opening and closing position of the valve body 1.

[0043] In summary, this invention enables precise control of liquid level height and allows for quick and flexible adjustments based on different operating conditions. Compared to existing technologies, it expands the adjustment range, improves adjustment accuracy, and enhances operational convenience, exhibiting excellent application reliability and practicality. By setting up the float trigger mechanism 7, when the liquid level rises to a preset height, it triggers the contact switch 702 inside the switch housing 701, achieving reliable signal output. This, in turn, controls the valve body 1 via the controller to cut off the liquid flow. Simultaneously, the design of the fixing plate 703 and the sealing ring 707 ensures the sealing and stability of the structure, thereby improving the accuracy and durability of liquid level detection. The trigger adjustment mechanism 8 allows the water box 4 to smoothly rise and fall along the slider 810 within the slide groove 809, achieving stepless adjustment of the float trigger mechanism 7 height. This not only expands the adjustment range but also improves adjustment accuracy. Furthermore, since adjustment can be achieved simply by rotating the handle, operation is more convenient and can be completed without tools.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable float valve, characterized in that, include: A valve body (1) is used to control the flow of the medium, and a connecting pipe (2) is provided at one end of the valve body (1); A protective shell (3) is located on the side of the connecting pipe (2) away from the valve body (1), and a water box (4) is provided inside the protective shell (3). One end of the water box (4) is connected to the connecting pipe (2) through a flexible pipe (5), and the other end of the water box (4) is provided with a water outlet pipe (6). The float triggering mechanism (7) is located at the bottom of the water box (4) and is used to transmit a signal to an external controller when the liquid level reaches a preset height. The trigger adjustment mechanism (8) is located at the top of the water box (4) and on the protective shell (3), and is used to adjust the height of the float trigger mechanism (7).

2. An adjustable float valve according to claim 1, characterized in that, The float triggering mechanism (7) includes a switch housing (701) disposed at the bottom of the water box (4), and a contact switch (702) is disposed on the inner top of the switch housing (701); A fixing plate (703) is provided at the bottom of the switch housing (701), a connecting rod (704) is inserted through the middle of the fixing plate (703), a stop block (705) is provided at the top of the connecting rod (704) and inside the switch housing (701), and a float ball (706) is provided at the bottom of the connecting rod (704).

3. An adjustable float valve according to claim 2, characterized in that, A sealing ring (707) is provided on the outside of the connecting rod (704) and at the center of the fixing plate (703).

4. An adjustable float valve according to claim 1, characterized in that, The trigger adjustment mechanism (8) includes a screw (801) threadedly connected to the top of the protective shell (3), the bottom end of the screw (801) being connected to the top end of the water box (4), and a handle (802) being provided at the top end of the screw (801).

5. An adjustable float valve according to claim 4, characterized in that, The top of the water box (4) is provided with a protrusion (803), the middle of the protrusion (803) is provided with a groove (804), the bottom of the screw (801) is provided with a connector (805) located in the groove (804), the top of the connector (805) is provided with a cover plate (806), and the cover plate (806) is connected to the protrusion (803).

6. An adjustable float valve according to claim 5, characterized in that, The top of the protrusion (803) is provided with a plurality of threaded holes (807), and the cover plate (806) is provided with bolts (808), and the bolts (808) are connected to the threaded holes (807).

7. An adjustable float valve according to claim 4, characterized in that, The inner wall of the protective shell (3) is provided with a groove (809), and the side wall of the water box (4) is provided with a slider (810) located in the groove (809).

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