Water flow control valve

Abstract

The utility model relates to the technical field of valves, in particular to a water flow control valve, which comprises a valve body, a water inlet channel and a water outlet channel are respectively arranged in the valve body, the water inlet channel and the water outlet channel are connected through a control channel, a valve core is arranged in the control channel, an indicating rod is arranged on the valve body, the indicating rod extends into the water outlet channel, and the valve core is arranged on the valve body. Scale marks are arranged on the sliding rod; the flow control mechanism is used for adjusting the position of the valve element; the floating indicator is connected with the indicating rod in a sliding mode, and the liquid level of the water outlet pipeline is displayed under the action of buoyancy of the water outlet channel. The position of the indicating rod is firstly adjusted to enable the indicating rod to move to the specified liquid level height, then the position of the valve element is adjusted through the flow control mechanism, and after liquid enters the water outlet channel, buoyancy is provided for the floating indicator to enable the floating indicator to move upwards till the floating indicator abuts against the bottom of the indicating rod, so that the liquid level in the water outlet pipeline reaches a set value. The flow is specified flow.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and particularly relates to a water flow control valve. Background Art

[0002] A flow control valve is a device used to control the flow rate of a fluid. The flow control valve adjusts the flow rate of the fluid by changing the cross-sectional area of the flow channel. It generally consists of a valve body, a valve core, an actuator, etc. The actuator can adjust the position of the valve core according to the control signal, thereby changing the size of the flow channel and achieving the control of the flow rate.

[0003] In the existing flow control valve, since the pipeline is in a closed state, the flow rate of the liquid in the pipeline cannot be observed, and the staff cannot finely adjust the flow rate of the pipeline. They can only adjust it by listening to the sound based on experience, which is very unfriendly to newbies in the industry. Summary of the Invention

[0004] The purpose of the utility model is to provide a water flow control valve to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water flow control valve includes a valve body. An inlet channel and an outlet channel are respectively arranged in the valve body. The inlet channel and the outlet channel are connected through a control channel. A valve core is arranged in the control channel. An indicating rod is arranged on the valve body. The indicating rod extends into the outlet channel, and scale lines are arranged on the indicating rod. It further includes a flow control mechanism for adjusting the position of the valve core. It also includes a floating indicator which is slidably connected to the indicating rod and displays the liquid level of the outlet pipeline under the buoyancy of the outlet channel.

[0007] Further, the flow control mechanism includes a valve rod rotatably connected to the valve core. The valve rod is threadedly connected to the valve cover. The valve cover is detachably connected to the valve body. The valve rod is also rotatably connected to the valve body.

[0008] Further, a groove is arranged in the valve body, and a sealing ring for sealing the valve rod is installed in the groove.

[0009] Further, the floating indicator includes a sliding rod slidably connected to the indicating rod, and a floating plate is fixedly connected to the lower end of the sliding rod.

[0010] Further, an indicating color is arranged on the sliding rod. When the upper end of the floating plate abuts against the lower end of the indicating rod, the part of the sliding rod extending out of the indicating rod exposes the indicating color.

[0011] Further, a first arc-shaped plate is fixedly arranged on the valve body. A guide rod is slidably arranged on the first arc-shaped plate. One end of the guide rod is fixedly provided with a second arc-shaped plate, and the other end is provided with a baffle. A spring is arranged between the baffle and the first arc-shaped plate. The spring is inserted outside the guide rod. The first arc-shaped plate and the second arc-shaped plate form a locking groove adapted to the indicating rod.

[0012] In the above technical solution, the beneficial effects of a water flow control valve provided by the present utility model are as follows:

[0013] By providing the valve body, when flow adjustment is required, first adjust the position of the indicating rod through the scale line, so that the indicating rod moves on the water outlet channel until it moves to the specified liquid level height. Then, adjust the position of the valve core through the flow control mechanism to adjust the liquid flow rate entering the water outlet channel. After the liquid enters the water outlet channel, buoyancy is provided for the floating indicator, so that the floating indicator moves upward until it abuts against the bottom of the indicating rod, so that the liquid level in the water outlet pipe reaches the set value, that is, the specified flow rate.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the present disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0017] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present utility model Figure 1 ;

[0018] Figure 2 Schematic diagram of the overall structure provided by the embodiment of the present utility model Figure 2 ;

[0019] Figure 3 Schematic diagram of the enlarged partial structure A provided by the embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the overall sectional structure provided by the embodiment of the present utility model.

[0021] Description of the reference numerals:

[0022] 1. Valve body; 11. Water inlet channel; 12. Control channel; 13. Water outlet channel; 2. Indicator rod; 3. Flow control mechanism; 31. Valve stem; 32. Valve cover; 33. Sealing ring; 34. Valve core; 4. Floating indicator; 41. Sliding rod; 42. Floating plate; 51. First arc plate; 52. Second arc plate; 53. Guide rod; 54. Baffle; 55. Spring. Detailed implementation manners

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0024] Please refer to Figures 1-4 , a water flow control valve, comprising a valve body 1, wherein a water inlet channel 11 and a water outlet channel 13 are respectively arranged in the valve body 1, the water inlet channel 11 and the water outlet channel 13 are connected through a control channel 12, a valve core 34 is arranged in the control channel 12, an indicator rod 2 is arranged on the valve body 1, the indicator rod 2 extends into the water outlet channel 13, and scale lines are arranged on the indicator rod 2; further comprising a flow control mechanism 3 for adjusting the position of the valve core 34; and further comprising a floating indicator 4, the floating indicator 4 is slidably connected to the indicator rod 2, and under the buoyancy of the water outlet channel 13, the liquid level of the water outlet pipe is displayed.

[0025] By providing the valve body 1, when flow adjustment is required, first adjust the position of the indicator rod 2 through the scale lines, so that the indicator rod 2 moves on the water outlet channel 13 until it reaches the specified liquid level height, and then adjust the position of the valve core 34 through the flow control mechanism 3, thereby adjusting the liquid flow rate entering the water outlet channel 13. After the liquid enters the water outlet channel 13, buoyancy is provided for the floating indicator 4, so that the floating indicator 4 moves upward until it abuts against the bottom of the indicator rod 2, thereby making the liquid level in the water outlet pipe reach the set value, that is, the specified flow rate.

[0026] Further, the flow control mechanism 3 includes a valve stem 31 rotatably connected to the valve core 34, the valve stem 31 is threadedly connected to a valve cover 32, the valve cover 32 is detachably connected to the valve body 1, and the valve stem 31 is also rotatably connected to the valve body 1. A groove is arranged in the valve body 1, and a sealing ring 33 for sealing the valve stem 31 is installed in the groove. A valve port adapted to the valve core 34 is arranged in the control channel 12 in the valve body 1. Rotating the valve stem 31 can make the valve body 1 rise and fall, thereby adjusting the relative position between the valve stem 31 and the valve port to adjust the liquid flow rate flowing from the control channel 12 to the water outlet channel 13.

[0027] Further, the floating indicator 4 includes a sliding rod 41 slidably connected to the indicating rod 2, and a floating plate 42 is fixedly connected to the lower end of the sliding rod 41. The liquid in the water outlet channel 13 generates a buoyant force on the floating plate 42, so that the floating plate 42 moves upward along the indicating rod 2 until it abuts against the bottom of the indicating rod 2. When the staff observes that the sliding rod 41 no longer moves upward, it indicates that the upper end of the floating plate 42 abuts against the lower end of the indicating rod 2, that is, the liquid level of the water outlet pipe reaches the specified height.

[0028] Further, an indicating color is provided on the sliding rod 41. When the upper end of the floating plate 42 abuts against the lower end of the indicating rod 2, the part of the sliding rod 41 extending out of the indicating rod 2 exposes the indicating color. The indicating color can visually remind the operator that the upper end of the floating plate 42 abuts against the lower end of the indicating rod 2; the indicating color can be replaced with other patterns, shapes, etc. with reminders.

[0029] Further, a first arc-shaped plate 51 is fixedly arranged on the valve body 1, a guide rod 53 is slidably arranged on the first arc-shaped plate 51, a second arc-shaped plate 52 is fixedly arranged at one end of the guide rod 53, a baffle 54 is arranged at the other end, a spring 55 is arranged between the baffle 54 and the first arc-shaped plate 51, the spring 55 is inserted outside the guide rod 53, and a locking groove adapted to the indicating rod 2 is formed between the first arc-shaped plate 51 and the second arc-shaped plate 52. Pull the second arc-shaped plate 52 to expand the locking groove, so that the indicating rod 2 can be moved and adjusted to the desired liquid level height. After adjustment, release the second arc-shaped plate 52. Under the reset action of the spring 55, the first arc-shaped plate 51 and the second arc-shaped plate 52 fix the position of the indicating rod 2 by friction. Anti-slip pads can be arranged on the corresponding sides of the first arc-shaped plate 51 and the second arc-shaped plate 52 to improve stability.

[0030] Working principle: First, adjust the position of the indicating rod 2 through the scale line, so that the indicating rod 2 moves on the water outlet channel 13 until it moves to the specified liquid level height. Rotating the valve stem 31 can make the valve body 1 rise and fall, so as to adjust the relative position of the valve stem 31 and the valve orifice, so as to adjust the liquid flow rate flowing from the control channel 12 to the water outlet channel 13. The liquid in the water outlet channel 13 generates a buoyant force on the floating plate 42, so that the floating plate 42 moves upward along the indicating rod 2 until it abuts against the bottom of the indicating rod 2. The staff stops adjusting the valve stem 31 by observing the indicating color, so as to complete the precise adjustment of the liquid flow rate.

[0031] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A water flow control valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a water inlet channel (11) and a water outlet channel (13), respectively; the water inlet channel (11) and the water outlet channel (13) are connected via a control channel (12); a valve core (34) is provided in the control channel (12); an indicator rod (2) is provided on the valve body (1); the indicator rod (2) extends into the water outlet channel (13); and a scale line is provided on the indicator rod (2); It also includes a flow control mechanism (3) for adjusting the position of the valve core (34); It also comprises a floating indicator (4), which is slidably connected to the indicator rod (2) and displays the liquid level of the water outlet pipeline under the buoyancy of the water outlet channel (13).

2. A water flow control valve according to claim 1, characterized in that: The flow control mechanism (3) comprises a valve stem (31) rotatably connected to a valve core (34), the valve stem (31) being threadedly connected to a valve cover (32), the valve cover (32) being detachably connected to a valve body (1), and the valve stem (31) being rotatably connected to the valve body (1).

3. A water flow control valve according to claim 2, characterized in that: A groove is provided in the valve body (1), and a sealing ring (33) for sealing the valve stem (31) is installed in the groove.

4. A water flow control valve according to claim 1, characterized in that: The floating indicator (4) comprises a sliding rod (41) slidably connected to the indicator rod (2), and a floating plate (42) is fixedly connected to the lower end of the sliding rod (41).

5. A water flow control valve according to claim 4, characterized in that: The sliding rod (41) is provided with an indication color, and when the upper end of the floating plate (42) abuts against the lower end of the indication rod (2), the portion of the sliding rod (41) extending out of the indication rod (2) exposes the indication color.

6. A water flow control valve according to claim 1, characterized in that: A first curved plate (51) is fixedly provided on the valve body (1), a guide rod (53) is slidably provided on the first curved plate (51), a second curved plate (52) is fixedly provided on one end of the guide rod (53), and a baffle plate (54) is provided on the other end, a spring (55) is provided between the baffle plate (54) and the first curved plate (51), and the spring (55) is inserted and provided on the outer side of the guide rod (53), and the first curved plate (51) and the second curved plate (52) form a locking groove adapted to the indicator rod (2).

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