Self-adjusting balance valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a self-adjusting balance valve which comprises a valve body and a valve cavity arranged in the valve body, the valve body is provided with a water inlet and a water outlet which are communicated with the valve cavity, and a pressure stabilizing structure is arranged in the valve cavity. The pressure stabilizing structure comprises an outer pipe arranged in the valve cavity and an inner pipe movably arranged in the outer pipe in a sleeved mode at intervals, the upper end and the lower end of the outer pipe and the upper end and the lower end of the inner pipe are open ends, a water inlet runner is formed between the bottom of the inner pipe and the water inlet, a water outlet runner is formed between the top of the outer pipe and the water outlet, and the water inlet runner and the water outlet runner are communicated through the inner pipe. A pressure stabilizing cavity and a mounting cavity which are vertically distributed at an interval are formed between the inner pipe and the outer pipe, the pressure stabilizing cavity is communicated with the inner pipe, the mounting cavity is communicated with the water outlet, and an elastic reset piece is mounted in the mounting cavity; the self-adjusting balance of the water flow is achieved, efficiency is high, and adjustment is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and particularly relates to a self-regulating balance valve. Background Art

[0002] A balance valve is a valve with a special function. There is nothing special about the valve itself, except for the differences in its usage function and application scenarios. In some industries, due to the large pressure difference or flow rate difference of the medium (various flowable substances) in each part of the pipeline or container, in order to reduce or balance this difference, a valve is installed between the corresponding pipelines or containers to adjust the relative balance of the pressure on both sides, or to achieve flow balance through the method of flow splitting. This valve is called a balance valve.

[0003] Chinese utility model patent CN220956823U discloses a new type of internal thread balance valve, belonging to the technical field of valves. It solves the problem of inaccurate adjustment of water flow pressure in existing products. It includes a valve body, a valve cover is arranged on the valve body, a water inlet for water inlet and a water outlet for water outlet are opened on the valve body, a water flow pipeline for water flow to pass through is arranged in the valve body, two detection joints for detecting the liquid state are installed on the valve body, and are respectively arranged at the water inlet and water outlet of the valve body. A plug is arranged on the valve body and is arranged between the two detection joints. A valve core assembly and a valve rod are fixedly arranged in the valve body, and the valve rod is connected with the valve core assembly and controls the opening or closing of the water flow pipeline in the valve body through the valve core assembly. One end of the detection joint is threadedly and hermetically connected to the detection water outlet in the valve body for liquid and the detection joint at the water inlet, and the detection device is connected to measure the hydraulic pressure at the two positions, and then the control handwheel is rotated to control the valve core assembly to adjust the flow rate, so as to achieve the functions of flow balance and voltage stabilization.

[0004] However, during the use of the above balance valve, it is necessary to rely on manual rotation of the handwheel for balance and voltage stabilization, which has low efficiency and is inconvenient to use. Therefore, there is an urgent need for a self-regulating balance valve. Content of the Utility Model

[0005] The utility model discloses a self-regulating balance valve, which mainly solves the problems of low efficiency and inconvenient use caused by manual rotation of the handwheel for balance and voltage stabilization at present.

[0006] To achieve the above object, the present utility model provides a self-adjusting balance valve, which includes a valve body and a valve cavity arranged inside the valve body. An inlet and an outlet communicating with the valve cavity are arranged on the valve body. A voltage stabilizing structure is arranged inside the valve cavity. The voltage stabilizing structure includes an outer tube arranged inside the valve cavity and an inner tube movably and spacedly sleeved inside the outer tube. Both the upper and lower ends of the outer tube and the inner tube are open ends. A water inlet flow channel is formed between the bottom of the inner tube and the inlet. A water outlet flow channel is formed between the top of the outer tube and the outlet. The water inlet flow channel and the water outlet flow channel are communicated through the inner tube. A voltage stabilizing cavity and an installation cavity are arranged at intervals up and down between the inner tube and the outer tube. The voltage stabilizing cavity is communicated with the inner tube. The installation cavity is communicated with the outlet. An elastic resetting member is installed inside the installation cavity.

[0007] Further, the elastic resetting member is a telescopic spring, and the telescopic spring is sleeved on the inner tube.

[0008] Further, sealing rings are arranged at both the top and the bottom of the installation cavity.

[0009] Further, a plurality of connection ports for communicating the outlet with the installation cavity are arranged at intervals on the pipe wall of the outer tube.

[0010] Further, a stop block is arranged at the bottom of the valve cavity, and a water inlet flow channel is formed between the stop block and the inner tube.

[0011] Further, the stop block and the valve body are detachably connected by threads.

[0012] Further, a protrusion that can be inserted into the inner tube is arranged at the top of the stop block, and the side wall of the protrusion is an inclined surface.

[0013] Further, a sealing ring is arranged at the bottom of the outer tube.

[0014] Further, a communication cavity for communicating the voltage stabilizing cavity with the inner tube is formed at an interval between the top of the inner tube and the outer tube.

[0015] Further, an upper cavity and a lower cavity are formed at intervals up and down between the outer tube and the valve cavity. The upper cavity is used for communicating the water outlet flow channel with the outlet. The lower cavity is used for communicating the outlet with the installation cavity.

[0016] The technical solution provided by the present utility model has at least the following technical effects:

[0017] For the self-regulating balance valve disclosed in this application, liquid enters the inner tube through the water inlet flow path from the water inlet. A part of the liquid entering the inner tube enters the water outlet, and the other part enters the pressure stabilizing cavity. A part of the liquid entering the water outlet is directly discharged, and the other part enters the installation cavity. When the water pressure (flow rate) suddenly increases, the water pressure in the pressure stabilizing cavity increases, and then drives the inner tube to move downward against the elastic force of the elastic reset member, narrowing the water inlet flow path to reduce the instantaneous flow rate. Similarly, when the water pressure decreases, the elastic force of the elastic reset member drives the inner tube to move upward, widening the water inlet flow path to increase the water flow rate, thereby achieving self-regulation and balance of the water flow rate, with high efficiency and convenient adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the balance valve according to an embodiment of the present utility model;

[0020] Figure 2 It is a side view of the balance valve according to an embodiment of the present utility model;

[0021] Figure 3 It is one of the sectional views according to an embodiment of the present utility model;

[0022] Figure 4 It is the second sectional view according to an embodiment of the present utility model.

[0023] Main reference numeral descriptions: 1, valve body; 2, water inlet; 3, water outlet; 4, outer tube; 5, inner tube; 6, water inlet flow path; 7, pressure stabilizing cavity; 8, installation cavity; 9, elastic reset member; 10, connection port; 11, protrusion; 12, block; 13, upper cavity; 14, lower cavity; 15, communication cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation of the present utility model.

[0025] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model 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, and therefore should not be construed as a limitation on the present utility model.

[0026] As an embodiment of the present utility model:

[0027] Referring to Figure 1 、 Figure 2 In this embodiment, a self-adjusting balance valve includes a valve body 1 and a valve cavity provided in the valve body 1. An inlet 2 and an outlet 3 communicating with the valve cavity are provided on the valve body 1. A voltage stabilizing structure is provided in the valve cavity. Referring to Figure 3 、 Figure 4 The voltage stabilizing structure includes an outer tube 4 provided in the valve cavity and an inner tube 5 movably and coaxially sleeved in the outer tube 4. A sealing ring is provided at the bottom of the outer tube 4. Both the upper and lower ends of the outer tube 4 and the inner tube 5 are open ends. An inlet water flow channel 6 is formed between the bottom of the outer tube 4 and the inner tube 5 and the inlet 2. Specifically, a stop block 12 is provided at the bottom of the valve cavity. The stop block 12 is detachably connected to the valve body 1 by a thread. The stop block 12 and the inner tube 5 are spaced apart, and the gap therebetween forms the inlet water flow channel 6. The size of the inlet water flow channel 6 can be adjusted by changing the gap between the inner tube 5 and the stop block 12. A protrusion 11 that can be inserted into the inner tube 5 is provided at the top of the stop block 12. The side wall of the protrusion 11 is an inclined surface to facilitate the cooperation between the protrusion 11 and the inner tube 5.

[0028] An outlet water flow channel is formed between the top of the outer tube 4 and the outlet 3. The inlet water flow channel 6 and the outlet water flow channel are communicated through the inner tube 5. A voltage stabilizing cavity 7 and a mounting cavity 8 are provided between the inner tube 5 and the outer tube 4 at intervals up and down. A communication cavity 15 for communicating the voltage stabilizing cavity 7 and the inner tube 5 is formed at an interval between the top of the inner tube 5 and the outer tube 4. The communication cavity 15 is in a normally open state. Sealing rings are provided at the top and bottom of the mounting cavity 8. The voltage stabilizing cavity 7 is communicated with the inner tube 5. The mounting cavity 8 is communicated with the outlet 3. An elastic reset member 9 is installed in the mounting cavity 8. In this embodiment, the elastic reset member 9 is a telescopic spring. The telescopic spring is sleeved on the inner tube 5. The top of the telescopic spring abuts against the inner tube 5, and the bottom abuts against the outer tube 4.

[0029] An upper cavity 13 and a lower cavity 14 are formed between the outer pipe 4 and the valve cavity, and are distributed at intervals up and down. Through the transition between the upper cavity 13 and the lower cavity 14, the water outlet channel is communicated with the water outlet 3, and the water outlet 3 is communicated with the installation cavity 8. A plurality of connection ports 10 for communicating the water outlet 3 with the installation cavity 8 are arranged at intervals on the pipe wall of the outer pipe 4, and the liquid can enter the installation cavity 8 through the connection ports 10.

[0030] Adjustment principle: The liquid is introduced from the water inlet 2 and then enters the inner pipe 5 through the water inlet channel 6. Part of the liquid flows into the pressure stabilizing cavity 7 through the communication cavity 15, while the other part enters the upper cavity 13 through the water outlet channel and is finally discharged from the water outlet 3. The other part of the liquid enters the lower cavity 14 and flows into the installation cavity 8 through the connection port 10, that is, both the installation cavity 8 and the pressure stabilizing cavity 7 are filled with liquid.

[0031] When the water pressure (or flow rate) suddenly rises, the water pressure in the pressure stabilizing cavity 7 increases first, and then pushes the inner pipe 5 to move downward against the resistance of the telescopic spring, resulting in the narrowing of the water inlet channel 6, thereby reducing the flow rate and achieving the effect of reducing the instantaneous flow rate. On the contrary, when the water pressure drops or the water pressure is normal, the elastic restoring force of the elastic restoring member 9 causes the inner pipe 5 to move upward and reset, widening the water inlet channel 6 to ensure the stable flow of the water flow, so as to achieve the self-adjustment balance of the water flow. This mechanism has high efficiency and convenient adjustment.

[0032] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-regulating balance valve, comprising a valve body (1) and a valve cavity provided in the valve body (1). The valve body (1) is provided with a water inlet (2) and a water outlet (3) that communicate with the valve cavity. It is characterized in that, A pressure stabilizing structure is arranged in the valve cavity. The pressure stabilizing structure includes an outer tube (4) arranged in the valve cavity and an inner tube (5) movably and coaxially sleeved in the outer tube (4). Both the upper and lower ends of the outer tube (4) and the inner tube (5) are open ends. An inlet flow channel (6) is formed between the bottom of the inner tube (5) and the water inlet (2). An outlet flow channel is formed between the top of the outer tube (4) and the water outlet (3). The inlet flow channel (6) and the outlet flow channel are communicated through the inner tube (5). A pressure stabilizing cavity (7) and a mounting cavity (8) are arranged at intervals up and down between the inner tube (5) and the outer tube (4). The pressure stabilizing cavity (7) is communicated with the inner tube (5), and the mounting cavity (8) is communicated with the water outlet (3). An elastic reset member (9) is installed in the mounting cavity (8).

2. The balance valve according to claim 1, wherein The elastic reset member (9) is a telescopic spring, and the telescopic spring is sleeved on the inner tube (5).

3. The balance valve according to claim 1, characterized in that, Sealing rings are arranged at both the top and the bottom of the mounting cavity (8).

4. The balance valve according to claim 1, characterized in that, A plurality of connection ports (10) for communicating the water outlet (3) with the mounting cavity (8) are arranged at intervals on the pipe wall of the outer tube (4).

5. The balance valve according to claim 1, characterized in that, A stop block (12) is arranged at the bottom of the valve cavity, and an inlet flow channel (6) is formed between the stop block (12) and the inner tube (5).

6. The balance valve according to claim 5, characterized in that, The stop block (12) is detachably connected to the valve body (1) by threads.

7. The balance valve according to claim 5, wherein A protrusion (11) that can be inserted into the inner tube (5) is arranged at the top of the stop block (12), and the side wall of the protrusion (11) is an inclined surface.

8. The balance valve according to claim 1, wherein A sealing ring is arranged at the bottom of the outer tube (4).

9. The balance valve according to claim 1, wherein A communication cavity (15) for communicating the pressure stabilizing cavity (7) with the inner tube (5) is formed at an interval between the top of the inner tube (5) and the outer tube (4).

10. The balance valve according to claim 1, characterized in that An upper cavity (13) and a lower cavity (14) are formed at intervals up and down between the outer tube (4) and the valve cavity. The upper cavity (13) is used for communicating the outlet flow channel with the water outlet (3), and the lower cavity (14) is used for communicating the water outlet (3) with the mounting cavity (8).

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