Water level control valve capable of adjusting water level difference

Abstract

The utility model provides a water level control valve capable of adjusting water level difference, belongs to the technical field of water level control valves, and solves the problems that the conventional water level control valve is frequently opened and closed due to smaller water level difference, and related structures are quickly damaged. The device comprises an inner cylinder and a sleeve movably sleeved on the outer side of the inner cylinder, a floating ball valve is mounted in the sleeve, a water inlet is arranged on the side wall of the sleeve, a sealing ring attached to the inner wall of the sleeve is sleeved on the outer side of the inner cylinder, a water outlet is arranged at the bottom of the inner cylinder, and the inner cylinder is connected with a buoyancy device positioned below the inner cylinder and used for blocking the water outlet. The sleeve and the inner cylinder sliding relative to the sleeve are additionally arranged on an existing floating ball valve, the water level difference can be increased according to requirements, the buoyancy device controls opening and closing of the water outlet, the opening reaction time of the floating ball valve is delayed, and therefore the opening and closing frequency of the water level control valve and the generation frequency of the water hammer effect are reduced; and the floating ball valve and related structures are effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water level control valve, specifically belongs to a water level control valve of adjustable water level difference. BACKGROUND

[0002] The working principle of the water level control valve is mainly based on the floating ball to control the opening and closing of the valve, thereby realizing the automatic control of the water level.

[0003] The water level control valve has a small water level difference (i.e. the difference between the liquid level height of the open water level control valve and the liquid level height of the closed water level control valve), and is frequently started in use, so the valve wears fast, and the connecting part of the floating ball and the connecting rod, and the contact part of the valve core and the valve seat are worn greatly in the long-term frequent movement process. The various mechanical parts of the floating ball valve will bear alternating stress in repeated movement, and are prone to mechanical fatigue, especially the slender parts such as the connecting rod, which may produce micro cracks under the action of long-term bending and tensile stress, and finally lead to damage of the parts. And the water pipe connection is also easy to damage, because the water in the water pipe will flow fast after the valve is opened each time, and water hammer effect will be generated due to the inertia of the water flow when the valve is suddenly closed; when the valve is frequently opened and closed, the water pipe will be frequently affected by the water hammer effect, and the instantaneous high pressure generated by the water hammer will cause damage to the pipeline, the valve and the equipment connected thereto.

[0004] In view of the above problems, the utility model aims at providing a water level control valve with adjustable water level difference, which is provided with a sleeve and an inner cylinder sliding relative to the sleeve on the existing floating ball valve, so that the water level difference can be increased according to the requirement, the opening and closing of the water outlet is controlled by the buoyancy device, the opening reaction time of the floating ball valve is delayed, thereby reducing the opening and closing frequency of the water level control valve and the generation frequency of the water hammer effect, and the floating ball valve and the related structure are effectively protected. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model aims at providing a water level control valve with adjustable water level difference, which is provided with a sleeve and an inner cylinder sliding relative to the sleeve on the existing floating ball valve, so that the water level difference can be increased according to the requirement, the opening and closing of the water outlet is controlled by the buoyancy device, the opening reaction time of the floating ball valve is delayed, thereby reducing the opening and closing frequency of the water level control valve and the generation frequency of the water hammer effect, and the floating ball valve and the related structure are effectively protected.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A water level control valve with adjustable water level difference, comprising an inner cylinder and a sleeve movably arranged outside the inner cylinder, a floating ball valve is installed in the sleeve, a water inlet is formed in the side wall of the sleeve, a sealing ring is arranged on the outer side of the inner cylinder and matched with the inner wall of the sleeve, a water outlet is formed in the bottom of the inner cylinder, and a buoyancy device is connected to the lower part of the inner cylinder and used for blocking the water outlet.

[0008] Preferably, the buoyancy device comprises a guide rod connected with the inner cylinder, a buoyant member movably sleeved on the guide rod, and a blocking member installed on the guide rod below the buoyant member.

[0009] Preferably, a strip-shaped limiting slot is formed on the deflector, and the deflector is movably sleeved on the guide rod through the strip-shaped limiting slot.

[0010] Preferably, the blocking member is a nut and is threadedly connected on the guide rod.

[0011] Preferably, the blocking member is a nut and is threadedly connected on the guide rod.

[0012] Preferably, a plurality of annular clamping grooves matched with the sealing ring are formed on the inner wall of the sleeve.

[0013] Preferably, a plurality of screw rods for abutting against the fixed floating ball valve are arranged on the side wall of the sleeve.

[0014] As described above, the present application has the following advantages:

[0015] The sleeve and the inner cylinder which slides relative to the sleeve are additionally arranged on the existing floating ball valve, the water level difference can be increased according to the requirement, the opening and closing of the water outlet is controlled by the buoyancy device, the opening reaction time of the floating ball valve is delayed, and thus the opening and closing frequency of the water level control valve and the generation frequency of the water hammer effect are reduced, and the floating ball valve and the related structure are effectively protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 The cross-sectional structure schematic view provided by the embodiments of the present application.

[0018] Fig. 1 is a floating ball valve; 101 is a water inlet pipe; 102 is a water outlet pipe; 2 is a sleeve; 3 is an inner cylinder; 4 is a screw rod; 5 is a water inlet; 6 is an annular clamping groove; 7 is a sealing ring; 8 is a water outlet; 9 is a deflector; 10 is a strip-shaped limiting slot; 11 is a blocking block; 12 is a guide rod; 13 is a blocking member; 14 is a buoyant member. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0020] Therefore, the detailed description of the embodiments of the utility model provided in the drawings below is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model protection.

[0021] In the description of the utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0022] The embodiments of the utility model will be described below in combination with Figure 1 The utility model will be described in detail.

[0023] Embodiments

[0024] A water level control valve capable of adjusting water level difference, comprising an inner cylinder 3 and a sleeve 2 movably sleeved outside the inner cylinder 3, a float ball valve 1 is installed in the sleeve 2, the side wall of the sleeve 2 is provided with a water inlet 5, the outer side of the inner cylinder 3 is sleeved with a sealing ring 7 matched with the inner wall of the sleeve 2, the bottom of the inner cylinder 3 is provided with a water outlet 8, and the inner cylinder 3 is connected with a buoyancy device located below the inner cylinder 3 and used for plugging the water outlet 8. Wherein the float ball valve 1 is an existing device, the float ball valve 1 is provided with a water inlet pipe 101 and a water outlet pipe 102, and the float ball valve 1 is provided with a float ball for controlling the on-off of the pipeline between the water inlet pipe 101 and the water outlet pipe 102.

[0025] Due to the arrangement of the inner cylinder 3 and the sleeve 2, compared with the separately arranged float ball valve 1, the water level control valve of the application greatly reduces the liquid level height required for opening the float ball valve 1 pipeline, that is, increases the water level difference, and reduces the opening and closing frequency of the float ball valve 1. Specifically, when the water level in the water tank is low, the float ball valve 1 remains open, and the supplemented water flows into the water tank through the water inlet pipe 101 and the water outlet pipe 102. After the liquid level in the water tank rises, the buoyancy device also moves upward, thereby blocking the water outlet 8. The liquid level needs to continue to increase until the water inlet 5 on the sleeve 2, the water enters the inner cylinder 3 and the sleeve 2 from the water inlet 5, and drives the float ball in the float ball valve 1 to control the float ball valve 1 to close, thereby stopping the water supplement to the water tank; after the water in the water tank is used, the liquid level gradually decreases until the buoyancy device moves downward to open the water outlet 8, and the water in the inner cylinder 3 and the sleeve 2 flows out from the water outlet 8, thereby enabling the float ball of the float ball valve 1 to control the float ball valve 1 to open for water supplement.

[0026] The inner cylinder 3 can be axially adjusted relative to the sleeve 2, thereby adjusting the distance between the water inlet 5 and the water outlet 8 according to the requirement, that is, adjusting the size of the water level difference. The sealing ring 7 can ensure the sliding sealing between the inner cylinder 3 and the sleeve 2, and at the same time, through the friction of the sealing ring 7, the inner cylinder 3 can be kept in the adjusted position.

[0027] The buoyancy device includes a guide rod 12 connected with the inner cylinder 3, a floating piece 14 movably sleeved on the guide rod 12, and a blocking piece 13 installed on the guide rod 12 below the floating piece 14. The bottom of the inner cylinder 3 is hingedly connected with a deflection piece 9 above the floating piece 14, and the deflection piece 9 is provided with a blocking block 11 matched with the water outlet 8. Figure 1 As shown in the figure, the force point of the floating piece 14 on the deflection piece 9 is at one end away from the hinged point, and the blocking block 11 is arranged at one end close to the hinged point, thereby realizing the lever to press the blocking block 11, and ensuring the blocking effect of the blocking block 11 on the water outlet 8. The blocking piece 13 is arranged to prevent the floating piece 14 from being separated from the guide rod 12; the floating piece 14 can be a hollow float ball or made of a material with a density less than water.

[0028] A strip-shaped limiting groove 10 is formed in the deflection piece 9, and the deflection piece 9 is movably sleeved on the guide rod 12 through the strip-shaped limiting groove 10. The strip-shaped limiting groove 10 limits the deflection movement of the deflection piece 9, ensures the stable movement of the deflection piece 9, and enables the blocking block 11 to accurately press the water outlet 8.

[0029] The blocking block 11 is made of rubber. The rubber can better seal the water outlet 8.

[0030] The blocking piece 13 is a nut and is threadedly connected on the guide rod 12, facilitating subsequent disassembly and replacement of the floating piece 14.

[0031] A plurality of annular clamping grooves 6 are formed in the inner wall of the sleeve 2 and are matched with the sealing ring 7. The annular clamping grooves 6 can clamp the sealing ring 7, so that the inner cylinder 3 can be placed more stably.

[0032] A plurality of screw rods 4 are arranged on the side wall of the sleeve 2 and are used for abutting and fixing the floating ball valve 1. The plurality of screw rods 4 can abut and fix the floating ball valve 1 in the circumferential direction, so that the installation of the floating ball valve 1 of various shapes can be adapted.

[0033] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water level control valve capable of adjusting a water level difference, characterized by, The utility model relates to a floating ball valve, which comprises an inner cylinder (3) and a sleeve (2) movably sleeved outside the inner cylinder (3), wherein a floating ball valve (1) is installed in the sleeve (2), a water inlet (5) is arranged on the side wall of the sleeve (2), a sealing ring (7) is sleeved outside the inner cylinder (3) and adheres to the inner wall of the sleeve (2), a water outlet (8) is arranged at the bottom of the inner cylinder (3), and a buoyancy device is connected to the inner cylinder (3) and located below the inner cylinder (3) and used for blocking the water outlet (8).

2. The water level control valve according to claim 1, wherein The buoyancy device comprises a guide rod (12) connected to the inner cylinder (3), a buoyancy piece (14) movably sleeved on the guide rod (12), and a blocking piece (13) installed on the guide rod (12) and located below the buoyancy piece (14), and a deflection piece (9) is hingedly connected to the bottom of the inner cylinder (3) and located above the buoyancy piece (14), wherein a blocking block (11) matched with the water outlet (8) is arranged on the deflection piece (9).

3. The water level control valve according to claim 2, wherein A strip-shaped limiting groove (10) is formed on the deflection piece (9), and the deflection piece (9) is movably sleeved on the guide rod (12) through the strip-shaped limiting groove (10).

4. The water level control valve according to claim 2, wherein The blocking block (11) is made of rubber.

5. The water level control valve of claim 2, wherein The blocking piece (13) is a nut and is threadedly connected to the guide rod (12).

6. The water level control valve of claim 1, wherein A plurality of annular clamping grooves (6) matched with the sealing ring (7) are formed on the inner wall of the sleeve (2).

7. The water level control valve of claim 1, wherein A plurality of screw rods (4) for abutting and fixing the floating ball valve (1) are arranged on the side wall of the sleeve (2).

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