Valve body capable of distributing flow

Abstract

The invention relates to the technical field of pipeline valves, in particular to a valve body capable of distributing flow. The device comprises a mounting mechanism, the mounting mechanism comprises a framework, a separation base is fixedly connected between a pair of inner side walls, away from each other, in the framework, the top of the separation base and the inner top wall of the framework define a mounting cavity, the bottom of the separation base and the inner bottom wall of the framework define a liquid passing cavity, and an isolation groove is formed in the top of the separation base; according to the valve body capable of distributing the flow, the arranged lifting mechanism drives the adaptive sealing mechanism to slide up and down in the isolation groove and is used for controlling the size of an opening of the liquid passing cavity so as to adapt to different flow distribution requirements, and when the liquid passing cavity is in a non-fully-closed state, water flow drives the bottom of the adaptive sealing mechanism to form a corner; and the buffer mechanism is used for reducing the rotating angle of the bottom of the adaptive sealing mechanism so as to reduce the water flow impact force borne by a single part of the bottom of the adaptive sealing mechanism, so that the service lives of the movable plate and the sealing plate are prolonged, and the service life of the sealing plate is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline valves, in particular to a valve body capable of distributing flow. Background Art

[0002] In water conservancy projects and related fields, gate valve type flow distribution valves are often used to distribute and control the flow of river water. With its relatively simple structure and convenient operation, it has been widely used in many occasions. However, in actual use, it faces some problems that need to be solved when installed at the bottom of the river.

[0003] There are obvious differences in the flow rate of river water at different depths. The area close to the bottom of the river channel is relatively slow due to the obstruction of obstacles such as water plants and stones. This uneven flow rate is an inherent characteristic of river water flow, which has an important impact on the gate valve type flow distribution valve installed at the bottom. When the bottom of the valve seat of the gate valve type flow distribution valve is installed at the bottom of the river channel (or installed in an agricultural irrigation canal with relatively small water flow and flow rate), when the water flow with a slower flow rate flows through the bottom of the valve seat, the water plants, silt and other materials it carries are easily accumulated on the raised part of the bottom of the valve seat due to insufficient water flow power. This phenomenon gradually intensifies during long-term operation, seriously affecting the sealing performance of the distribution valve. In addition, when the distribution valve is in a non-fully closed state, that is, when the bottom of the gate is located in the middle of the water flow, the water flow will continuously scour and erode the bottom of the gate. Since the water flow has a certain kinetic energy, long-term scouring will gradually erode the edge of the gate, resulting in a poor sealing effect.

[0004] In the above scenario, the gap between the gate and the valve seat caused by erosion and material accumulation makes it impossible for the distribution valve to be completely sealed. This will not only lead to inaccurate flow distribution, affect the operating efficiency of the entire water conservancy system, but also cause waste of water resources. Summary of the invention

[0005] The object of the present invention is to provide a valve body capable of distributing flow, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides a flow-distributing valve body, including a mounting mechanism, the mounting mechanism including a frame, a partition seat fixedly connected between a pair of inner side walls separated from each other in the frame, the top of the partition seat and the inner top wall of the frame enclose a mounting cavity, the bottom of the partition seat and the inner bottom wall of the frame enclose a liquid cavity, the top of the partition seat is provided with a separation groove, an adaptable sealing mechanism is slidably connected in the separation groove, a lifting mechanism is provided on one side of the adaptable sealing mechanism, and a buffer mechanism is provided at the bottom of the adaptable sealing mechanism;

[0007] The lifting mechanism drives the adaptable sealing mechanism to slide up and down in the isolation groove to control the size of the liquid cavity opening;

[0008] When the liquid passage chamber is in a non-fully closed state, the water flow drives the bottom of the adaptive sealing mechanism to form a rotation angle, and the buffer mechanism is used to reduce the rotation angle of the bottom of the adaptive sealing mechanism to reduce the water flow impact force on the bottom of the adaptive sealing mechanism;

[0009] During the transition of the liquid passage chamber from a non-fully closed state to a fully closed state, the bottom of the adaptive sealing mechanism gradually turns toward the direction of the water flow source to scrape off the mud and sand impurities piled up at the bottom of the liquid passage chamber.

[0010] As a further improvement of the present technical solution, the top of the separator is fixedly connected to a limiting bolt on one side of the isolation groove, the isolation groove connects the installation cavity and the liquid passage cavity, and the bottom of the liquid passage cavity is respectively provided with a first base and a second base, the height of the first base is higher than the height of the second base, and a sealing slope is formed between the first base and the second base.

[0011] As a further improvement of the technical solution, the lifting mechanism includes a ball screw rotatably connected to the top of the limit bolt, the top of the ball screw is coaxially connected to a turntable, and a screw nut seat is threadedly connected to the ball screw.

[0012] As a further improvement of the present technical solution, the adaptive sealing mechanism includes a sealing plate and a movable plate, the sealing plate is fixedly connected to the screw nut seat, and the sealing plate is slidably connected to the isolation groove, a rotating shaft is provided at the bottom of the movable plate, and the movable plate is rotatably connected to the bottom of the sealing plate through the rotating shaft.

[0013] As a further improvement of the present technical solution, the buffer mechanism is provided with a plurality of sealed cavities at the bottom of the sealing plate, each of the sealed cavities is provided with a plurality of torsion springs, the inner ring of each torsion spring is fixedly connected to the outer wall of the rotating shaft, and the outer ring of each torsion spring is fixedly connected to the inner wall of the seal.

[0014] As a further improvement of the technical solution, when the bottom of the sealing plate is close to the bottom of the second base, the height of the top of the rotating shaft is lower than the height of the top of the first base.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the flow-distributable valve body, a lifting mechanism is provided to drive the adaptive sealing mechanism to slide up and down in the isolation groove, so as to control the size of the opening of the liquid chamber to adapt to different flow distribution requirements. When the liquid chamber is in a non-fully closed state, the water flow drives the bottom of the adaptive sealing mechanism to form a turning angle, and the buffer mechanism is used to reduce the rotation angle of the bottom of the adaptive sealing mechanism to reduce the water flow impact force on a single part of the bottom of the adaptive sealing mechanism, thereby extending the service life of the movable plate and the sealing plate to increase the service life of the sealing plate. In the process of the liquid chamber changing from a non-fully closed state to a fully closed state, the movable plate gradually turns to the direction of the water flow source to scrape off the mud and sand impurities piled up at the bottom of the liquid chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0018] Figure 2 It is a left view of the overall structure of the present invention;

[0019] Figure 3 It is a partially cutaway perspective view of the present invention;

[0020] Figure 4 It is a three-dimensional diagram of the installation mechanism of the present invention;

[0021] Figure 5 It is an exploded diagram of the lifting mechanism of the present invention;

[0022] Figure 6 The adaptable sealing mechanism of the present invention is three-dimensional Figure 1 ;

[0023] Figure 7 The adaptable sealing mechanism of the present invention is three-dimensional Figure 2 ;

[0024] Figure 8 It is a cutaway perspective view of the buffer mechanism of the present invention;

[0025] Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle.

[0026] The meaning of each number in the figure is:

[0027] 100, mounting mechanism; 110, frame; 120, mounting cavity; 121, stop bolt; 130, liquid passage cavity; 131, first base; 132, second base; 140, isolation groove;

[0028] 200, lifting mechanism; 210, ball screw; 220, turntable; 230, screw nut seat;

[0029] 300, adapted sealing mechanism; 310, sealing plate; 320, movable plate; 330, rotating shaft;

[0030] 400. Buffer mechanism; 410. Sealing chamber; 420. Torsion spring. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] See also Figure 1-Figure 3 As shown, the present embodiment aims to provide a valve body capable of distributing flow, including a mounting mechanism 100, the mounting mechanism 100 including a frame 110, a partition seat fixedly connected between a pair of inner side walls separated from each other in the frame 110, a mounting cavity 120 formed by the top of the partition seat and the inner top wall of the frame 110, a liquid passage cavity 130 formed by the bottom of the partition seat and the inner bottom wall of the frame 110, a separation groove 140 is provided on the top of the partition seat, an adaptable sealing mechanism 300 is slidably connected in the isolation groove 140, a lifting mechanism 200 is provided on one side of the adaptable sealing mechanism 300, and a buffer mechanism 400 is provided at the lower part of the adaptable sealing mechanism 300;

[0035] It should be noted that the lifting mechanism 200 drives the adaptive sealing mechanism 300 to slide up and down in the isolation groove 140 to control the size of the opening of the liquid chamber 130;

[0036] When the liquid passage chamber 130 is in a non-fully closed state, the water flow drives the bottom of the adaptive sealing mechanism 300 to form a rotation angle, and the buffer mechanism 400 is used to reduce the rotation angle of the bottom of the adaptive sealing mechanism 300 to reduce the water flow impact force on the bottom of the adaptive sealing mechanism 300; when the water flow speed remains unchanged, the larger the opening of the liquid passage chamber 130 (that is, the closer the bottom of the adaptive sealing mechanism 300 is to the bottom of the river channel), the larger the deflection angle of the bottom of the adaptive sealing mechanism 300;

[0037] When the liquid chamber 130 changes from the non-fully closed state to the fully closed state, the bottom of the adaptive sealing mechanism 300 gradually turns to the direction of the water flow source to scrape off the mud and sand impurities piled up at the bottom of the liquid chamber 130 .

[0038] In order to ensure the sealing performance of the liquid passage chamber 130 when it is closed, a protruding structure (the sealing slope to be described below) is usually provided at the bottom of the liquid passage chamber 130 .

[0039] like Figure 4 As shown, the top of the separator is fixedly connected to the limit bolt 121 on one side of the isolation groove 140, the isolation groove 140 connects the installation cavity 120 and the liquid passage cavity 130, and the bottom of the liquid passage cavity 130 is respectively provided with a first base 131 and a second base 132, the height of the first base 131 is higher than the height of the second base 132, and a sealing slope is formed between the first base 131 and the second base 132; when the bottom of the sealing plate 310 is close to the bottom of the second base 132, the height of the top of the rotating shaft 330 is lower than the height of the top of the first base 131.

[0040] The improvement lies in that: when the liquid chamber 130 needs to be completely closed to cut off the water flow, in order to ensure the sealing performance of the adaptive sealing mechanism 300 when closing the liquid chamber 130, compared with setting the bottom of the liquid chamber 130 as a slope, the bottom of the liquid chamber 130 is set as a stepped structure with one high and one low to form a sealing slope. Therefore, when the liquid chamber 130 needs to be closed, the lifting mechanism 200 is rotated to drive the adaptive sealing mechanism 300 to move downward. When the bottom of the adaptive sealing mechanism 300 is in contact with the second base 132, the top of one side of the sealing slope is in close contact with the side wall of the adaptive sealing mechanism 300, thereby ensuring that the liquid chamber 130 is completely sealed.

[0041] In order to drive the adaptive sealing mechanism 300 to rise and fall to meet different flow distribution requirements, a lifting mechanism 200 is provided on one side of the adaptive sealing mechanism 300 .

[0042] exist Figure 5 In the figure, the lifting mechanism 200 includes a ball screw 210 rotatably connected to the top of the limiting bolt 121 , a turntable 220 is coaxially connected to the top of the ball screw 210 , and a screw nut seat 230 is threadedly connected to the ball screw 210 .

[0043] The improvement lies in that when the size of the opening of the liquid chamber 130 needs to be changed, the turntable 220 is rotated (when the water flow rate is relatively small, it is rotated manually; when the water flow rate is large and manual rotation is impossible, it can be driven by another driving device, such as a motor). The turntable 220 drives the ball screw 210 to rotate on the top of the limit bolt 121, and the rotating ball screw 210 drives the screw nut seat 230 to move up and down. The screw nut seat 230 is fixedly connected to the adaptive sealing mechanism 300, so the adaptive sealing mechanism 300 will move up and down to change the size of the liquid chamber 130.

[0044] In order to ensure the sealing of the liquid chamber 130 when it is closed, a raised sealing slope is set at the bottom of the liquid chamber 130 so that the sealing slope can fit the side wall of the sealing structure (the adaptive sealing mechanism 300 to be described below). However, when a slower flow of water flows through the liquid chamber 130, due to the uneven bottom of the river channel (the presence of obstacles such as aquatic plants and sand and gravel), the mud and sand carried by the water flow will accumulate at the sealing slope, which will cause the bottom of the adaptive sealing mechanism 300 to be blocked by mud and sand, resulting in a gap between it and the bottom of the liquid chamber 130 and an inability to be completely sealed. Therefore, the bottom of the adaptive sealing mechanism 300 is set to a rotatable structure.

[0045] like Figure 6 and Figure 7 As shown, the specific structure of the adaptive sealing mechanism 300 is disclosed below. The adaptive sealing mechanism 300 includes a sealing plate 310 and a movable plate 320. The sealing plate 310 is fixedly connected to the screw nut seat 230, and the sealing plate 310 is slidably connected to the isolation groove 140. A rotating shaft 330 is provided at the bottom of the movable plate 320, and the movable plate 320 is rotatably connected to the bottom of the sealing plate 310 through the rotating shaft 330.

[0046] It should be noted that when the liquid chamber 130 needs to be completely closed, the turntable 220 is rotated to drive the screw nut seat 230 to descend, and the screw nut seat 230 drives the sealing plate 310 to descend. As the height of the sealing plate 310 decreases, the movable plate 320 at its bottom will first contact the side wall of the sealing slope until the bottom of the movable plate 320 contacts the second base 132. At this time, the sealing plate 310 continues to descend, and the movable plate 320 will rotate toward the side of the water source until the bottom of the sealing plate 310 is close to the second base 132. The process of the movable plate 320 scraping against the side wall of the sealing slope scrapes away impurities such as mud and sand accumulated around the sealing slope, ensuring that the sealing slope can be close to the side plate of the sealing plate 310, thereby ensuring that the liquid chamber 130 is completely sealed.

[0047] When the liquid chamber 130 is not completely closed, the movable plate 320 is in the middle of the water flow. The water flow impacts one position for a long time, causing the sealing of this position to deteriorate due to long-term erosion by the water flow. Therefore, the connection structure between the movable plate 320 and the sealing plate 310 is optimized.

[0048] Figure 8 and Fig. 9 The figure shows the positional connection relationship between the buffer mechanism 400 and the sealing plate 310 and the rotating shaft 330, and then the specific structure of the buffer mechanism 400 is disclosed. The buffer mechanism 400 is provided with multiple sealing cavities 410 at the bottom of the sealing plate 310, and each sealing cavity 410 is provided with multiple torsion springs 420. The inner ring of each torsion spring 420 is fixedly connected to the outer wall of the rotating shaft 330, and the outer ring of each torsion spring 420 is fixedly connected to the inner wall of the sealing cavity 410.

[0049] That is to say, when water flows through the bottom of the movable plate 320, due to the driving effect of the water flow, the movable plate 320 will be deflected by the driving force until the movable plate 320 is perpendicular to the sealing plate 310, but the water flow will always impact the same part of the bottom of the sealing plate 310, and the multiple torsion springs 420 arranged on the rotating shaft 330 provide a force to resist the rotation of the movable plate 320 when the movable plate 320 is driven by the water flow to rotate, which makes the deflection angle of the movable plate 320 between 0° and 90°, that is to say, the water flow The impact force of the flow is applied to the side of the entire inclined movable plate 320. Through the force analysis of the movable plate 320, it can be known that the force exerted on the movable plate 320 at this time is smaller than the force exerted when it was originally perpendicular to the flow direction of the water flow. In addition, under natural conditions, the flow rate of water is not constant, so the impact force of the water flow on the side of the movable plate 320 will be in a state of change, which alleviates the erosion of the movable plate 320 by the water flow, thereby extending the service life of the movable plate 320 and the sealing plate 310 and improving the sealing performance of the sealing plate 310.

[0050] In summary, the working principle of the present invention is as follows:

[0051] When the liquid chamber 130 needs to be kept open, water flows through the bottom of the movable plate 320. Due to the driving effect of the water flow, the movable plate 320 will be deflected by the driving force until the movable plate 320 is perpendicular to the sealing plate 310, but the water flow will continue to impact the same part of the bottom of the sealing plate 310. The multiple torsion springs 420 arranged on the rotating shaft 330 provide a force to resist the rotation of the movable plate 320 when the movable plate 320 is driven by the water flow to rotate, so that the deflection angle of the movable plate 320 is between 0° and 90°. In other words, the impact force of the water flow is applied to the entire Through the force analysis of the movable plate 320, it can be known that the force exerted on the movable plate 320 at this time is smaller than the force exerted when it is originally perpendicular to the flow direction of the water flow. Moreover, under natural conditions, the flow rate of water is not constant, so the impact force of the water flow on the side of the movable plate 320 will be changing, which alleviates the erosion of the movable plate 320 by the water flow, thereby extending the service life of the movable plate 320 and the sealing plate 310 and improving the sealing performance of the sealing plate 310.

[0052] When the liquid chamber 130 needs to be completely closed, the turntable 220 is rotated to drive the screw nut seat 230 to descend, and the screw nut seat 230 drives the sealing plate 310 to descend. As the height of the sealing plate 310 decreases, the movable plate 320 at its bottom will first contact the side wall of the sealing slope until the bottom of the movable plate 320 contacts the second base 132. At this time, the sealing plate 310 continues to descend, and the movable plate 320 will rotate toward the side of the water source until the bottom of the sealing plate 310 is close to the second base 132. The process of the movable plate 320 scraping against the side wall of the sealing slope scrapes away impurities such as mud and sand accumulated around the sealing slope, ensuring that the sealing slope can be close to the side plate of the sealing plate 310, thereby ensuring that the liquid chamber 130 is completely sealed.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A valve body capable of distributing flow, comprising a mounting mechanism (100), the mounting mechanism (100) comprising a frame (110), a partition seat being fixedly connected between a pair of inner side walls spaced apart from each other in the frame (110), the top of the partition seat and the inner top wall of the frame (110) forming a mounting cavity (120), the bottom of the partition seat and the inner bottom wall of the frame (110) forming a liquid passage cavity (130), the top of the partition seat being provided with an isolation groove (140), characterized in that: An adaptable sealing mechanism (300) is slidably connected in the isolation groove (140), a lifting mechanism (200) is provided on one side of the adaptable sealing mechanism (300), and a buffer mechanism (400) is provided at the bottom of the adaptable sealing mechanism (300); The lifting mechanism (200) drives the adaptive sealing mechanism (300) to slide up and down in the isolation groove (140) to control the size of the opening of the liquid chamber (130); When the liquid passage chamber (130) is in a non-fully closed state, the water flow drives the bottom of the adaptive sealing mechanism (300) to form a rotation angle, and the buffer mechanism (400) is used to reduce the rotation angle of the bottom of the adaptive sealing mechanism (300) to reduce the impact force of the water flow on the bottom of the adaptive sealing mechanism (300); During the transition of the liquid passage chamber (130) from a non-fully closed state to a fully closed state, the bottom of the adaptive sealing mechanism (300) gradually turns toward the direction of the water flow source to scrape off the mud and sand impurities piled up at the bottom of the liquid passage chamber (130).

2. The flow distributable valve body according to claim 1, characterized in that: The top of the separator is fixedly connected to a limit bolt (121) on one side of the isolation groove (140); the isolation groove (140) communicates with the installation cavity (120) and the liquid passage cavity (130); the bottom of the liquid passage cavity (130) is provided with a first base (131) and a second base (132); the height of the first base (131) is higher than the height of the second base (132); and a sealing slope is formed between the first base (131) and the second base (132).

3. The flow distributable valve body according to claim 2, characterized in that: The lifting mechanism (200) comprises a ball screw (210) rotatably connected to the top of the limit bolt (121), the top of the ball screw (210) is coaxially connected to a turntable (220), and a screw nut seat (230) is threadedly connected to the ball screw (210).

4. The flow distributable valve body according to claim 3, characterized in that: The adaptive sealing mechanism (300) comprises a sealing plate (310) and a movable plate (320); the sealing plate (310) is fixedly connected to the screw nut seat (230), and the sealing plate (310) is slidably connected to the isolation groove (140); a rotating shaft (330) is provided at the bottom of the movable plate (320), and the movable plate (320) is rotatably connected to the bottom of the sealing plate (310) via the rotating shaft (330).

5. The flow distributable valve body according to claim 4, characterized in that: The buffer mechanism (400) is provided with a plurality of sealed cavities (410) at the bottom of the sealing plate (310), and each of the sealed cavities (410) is provided with a plurality of torsion springs (420), and the inner ring of each torsion spring (420) is fixedly connected to the outer wall of the rotating shaft (330), and the outer ring of each torsion spring (420) is fixedly connected to the inner wall of the sealed cavity (410).

6. The flow distributable valve body according to claim 4, characterized in that: When the bottom of the sealing plate (310) is close to the bottom of the second base (132), the height of the top of the rotating shaft (330) is lower than the height of the top of the first base (131).

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