A linear flow regulating valve

Abstract

This invention relates to the field of valve technology, specifically disclosing a linear flow regulating valve, comprising a valve body, a valve core shell, a valve core assembly, a steel ball assembly, an adjusting assembly, a fixing knob, an adjusting nut, and adjusting blocks. The valve core shell is disposed inside the valve body, the valve core assembly is disposed inside the valve core shell, the steel ball assembly is sleeved on the outer wall of the valve core shell, the adjusting assembly is sleeved on the outer wall of the valve core assembly, the adjusting nut is sleeved on the outer wall of the valve core assembly, two adjusting blocks are respectively disposed on the outer wall of the valve core assembly, and the two adjusting blocks are respectively located at the upper end of the adjusting nut. The fixing knob is disposed at the upper end of the adjusting nut and is threadedly connected to the adjusting nut. This valve achieves quantitative flow regulation and control in fluid pipeline control processes, realizing linear and smooth changes in flow regulation and control processes, precise quantification in flow regulation and control processes, and features a simple structure and flexible use.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more particularly to a linear flow regulating valve. Background Technology

[0002] Currently, linear throttling valves control the corresponding flow rate by changing the throttling area. In practical engineering, the opening degree of the throttling element is usually used to control the water flow rate, which is called a transmitter. The amount of change in flow rate is controlled by the output rate, which is called an actuator. The function of the throttling element is to form a certain pressure difference between the throttling element and the outlet to achieve automatic cut-off or connection of the water flow in the pipeline. It has a wide range of flow characteristics and can control the flow rate in equal percentage, linear, quick-opening or parabolic linear ways.

[0003] However, in existing technologies, the flow regulation accuracy of throttle valves is low, resulting in the inability to accurately control the flow rate in the pipe. Summary of the Invention

[0004] The purpose of this invention is to provide a linear flow regulating valve, which aims to solve the technical problem that the flow regulation accuracy of the existing throttle valve is low, resulting in the inability to accurately control the flow in the pipe.

[0005] To achieve the above objectives, the present invention employs a linear flow regulating valve, comprising a valve body, a valve core housing, a valve core assembly, a steel ball assembly, an adjusting assembly, a fixing button, an adjusting nut, and adjusting blocks. The valve core housing is disposed inside the valve body, the valve core assembly is disposed inside the valve core housing, the steel ball assembly is sleeved on the outer wall of the valve core housing, the adjusting assembly is sleeved on the outer wall of the valve core assembly, the adjusting nut is sleeved on the outer wall of the valve core assembly and located at the upper end of the adjusting assembly, and there are two adjusting blocks, each disposed on the outer wall of the valve core assembly and located at the upper end of the adjusting nut, and the fixing button is disposed at the upper end of the adjusting nut and is threadedly connected to the adjusting nut.

[0006] The linear flow regulating valve further includes a first fluororubber ring and a second fluororubber ring. There are two first fluororubber rings, which are respectively disposed between the valve core assembly and the valve body. The second fluororubber ring is sleeved on the outer wall of the valve core housing.

[0007] The valve core assembly includes a valve core bolt, an adjusting rod, an adjusting core, a cylindrical pin, and a third fluororubber ring. The valve core bolt is disposed inside the valve core housing. The adjusting rod is embedded inside the valve core bolt. The adjusting core is disposed inside the valve core housing and is adapted to the valve core bolt. The cylindrical pin is threadedly connected to the adjusting core and passes through the adjusting core. The cylindrical pin also passes through the valve core bolt and the adjusting rod. The third fluororubber ring is sleeved on the outer wall of the valve core bolt.

[0008] The steel ball assembly includes a steel ball retainer, a steel ball body, an angular contact steel ball cover, and a steel ball adjusting nut. The steel ball retainer is sleeved on the outer wall of the valve core housing. There are multiple steel ball bodies, each of which is embedded inside the steel ball retainer. The angular contact steel ball cover is sleeved on the outer wall of the valve core housing and covers the steel ball retainer. The steel ball adjusting nut is sleeved on the outer wall of the valve core housing and is located at the upper end of the angular contact steel ball cover.

[0009] The adjusting assembly includes an adjusting handle, an adjusting positioning plate, and a fine-thread nut. The adjusting handle is threadedly connected to the valve core bolt and is sleeved on the outer wall of the valve core bolt. The fine-thread nut is threadedly connected to the valve core bolt and is located at the upper end of the adjusting handle. The adjusting positioning plate is threadedly connected to the valve core bolt and is located at the upper end of the adjusting handle. The fine-thread nut is located between the adjusting positioning plate and the adjusting handle.

[0010] The advantages of the linear flow regulating valve of the present invention are: it realizes quantitative flow regulation and control in the process of fluid pipeline control, realizes linear and smooth changes in the flow regulation and control process, achieves precise quantification in the flow regulation and control process, has a simple structure, and is flexible in use. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of a linear flow regulating valve according to the present invention.

[0013] Figure 2 This is a cross-sectional view of the internal structure of a linear flow regulating valve according to the present invention.

[0014] Figure 3 This is a three-dimensional diagram of a partial structure of a linear flow regulating valve according to the present invention.

[0015] Figure 4 This is a partial structural schematic diagram of a linear flow regulating valve according to the present invention.

[0016] 1-Valve body, 2-Valve core housing, 3-Valve core bolt, 4-Adjusting rod, 5-Adjusting core, 6-Cylindrical pin, 7-Third fluoropolymer ring, 8-Steel ball retainer, 9-Steel ball body, 10-Angular contact steel ball cover, 11-Steel ball adjusting nut, 12-Adjusting handle, 13-Adjusting positioning plate, 14-Fine thread nut, 15-Fixing button, 16-Adjusting nut, 17-Adjusting block, 18-First fluoropolymer ring, 19-Second fluoropolymer ring. Detailed Implementation

[0017] Please see Figures 1 to 4 This invention provides a linear flow regulating valve, comprising a valve body 1, a valve core housing 2, a valve core assembly, a steel ball assembly, an adjusting assembly, a fixing button 15, an adjusting nut 16, and adjusting blocks 17. The valve core housing 2 is disposed inside the valve body 1, the valve core assembly is disposed inside the valve core housing 2, the steel ball assembly is sleeved on the outer wall of the valve core housing 2, the adjusting assembly is sleeved on the outer wall of the valve core assembly, the adjusting nut 16 is sleeved on the outer wall of the valve core assembly and located at the upper end of the adjusting assembly, and there are two adjusting blocks 17, each disposed on the outer wall of the valve core assembly and located at the upper end of the adjusting nut 16, and the fixing button 15 is disposed at the upper end of the adjusting nut 16 and is threadedly connected to the adjusting nut 16.

[0018] Furthermore, the linear flow regulating valve also includes a first fluororubber ring 18 and a second fluororubber ring 19. There are two first fluororubber rings 18, which are respectively disposed between the valve core assembly and the valve body 1. The second fluororubber ring 19 is sleeved on the outer wall of the valve core housing 2.

[0019] Furthermore, the valve core assembly includes a valve core bolt 3, an adjusting rod 4, an adjusting core 5, a cylindrical pin 6, and a third fluororubber ring 7. The valve core bolt 3 is disposed inside the valve core housing 2. The adjusting rod 4 is embedded inside the valve core bolt 3. The adjusting core 5 is disposed inside the valve core housing 2, and the adjusting core 5 is adapted to the valve core bolt 3. The cylindrical pin 6 is threadedly connected to the adjusting core 5, and the cylindrical pin 6 passes through the adjusting core 5, as well as through the valve core bolt 3 and the adjusting rod 4. The third fluororubber ring 7 is sleeved on the outer wall of the valve core bolt 3.

[0020] Furthermore, the steel ball assembly includes a steel ball retainer 8, a steel ball body 9, an angular contact steel ball cover 10, and a steel ball adjusting nut 11. The steel ball retainer 8 is sleeved on the outer wall of the valve core housing 2. There are multiple steel ball bodies 9, each of which is embedded inside the steel ball retainer 8. The angular contact steel ball cover 10 is sleeved on the outer wall of the valve core housing 2 and covers the steel ball retainer 8. The steel ball adjusting nut 11 is sleeved on the outer wall of the valve core housing 2 and is located at the upper end of the angular contact steel ball cover 10.

[0021] Furthermore, the adjustment assembly includes an adjustment handle 12, an adjustment positioning plate 13, and a fine-thread nut 14. The adjustment handle 12 is threadedly connected to the valve core bolt 3 and is sleeved on the outer wall of the valve core bolt 3. The fine-thread nut 14 is threadedly connected to the valve core bolt 3 and is located at the upper end of the adjustment handle 12. The adjustment positioning plate 13 is threadedly connected to the valve core bolt 3 and is located at the upper end of the adjustment handle 12, and the fine-thread nut 14 is located between the adjustment positioning plate 13 and the adjustment handle 12.

[0022] In this embodiment, the valve core housing 2, the valve core bolt 3, and the adjusting core 5 form an AB-Archimedes spiral-based flow regulating groove. Fluid enters the AB-Archimedes spiral-based flow regulating groove. The inner curve of the AB-Archimedes spiral-based flow regulating groove is set according to the Archimedean polar coordinates (r=a+bθ). The cam surface of the large end of the valve core bolt 3 is machined, and the outer circle is the inner circle of the large end of the valve core housing 2. By assembling, the AB-Archimedes spiral-based flow regulating groove gradually increases or decreases in two dimensions. Rotating the adjusting handle 12 left and right causes the valve core bolt 3 to change the fit width between the AB-Archimedes spiral-based flow regulating groove and the inlet regulating orifice, thereby changing the cross-sectional area of ​​the fluid passing through the section of the AB-Archimedes spiral-based flow regulating groove and the inlet regulating orifice, thus controlling the flow rate.

[0023] The graph of r = a + bθ is a straight line. Therefore, when the adjustment handle 12 is rotated, the width of the valve core bolt 3 changes linearly, and the width of the AB-Archimedes spiral-based flow adjustment groove and the inlet adjustment hole also increases or decreases linearly. The flow rate of the fluid also increases or decreases linearly. The adjustment handle 12 and the valve body 1 have scale markings indicating their relative positions. The scale markings on one end of the adjustment handle 12 indicate that the decreasing direction is for decreasing adjustment, the increasing direction is for increasing adjustment, and the absence of scale indicates the flow is closed.

[0024] The bottom of the AB-Archimedes spiral-based flow regulating groove is the longitudinally adjustable regulating core 5, and the other end of the regulating handle 12 has 15 graduations from A to 0, which are the graduation marks for the movement of the regulating core 5.

[0025] First, rotate the adjusting nut 16 so that the adjusting block 17 drives the adjusting rod 4, and then the cylindrical pin 6 pulls the adjusting core 5 to move axially along the AB-Archimedes spiral flow regulating groove, changing the groove depth and increasing the fluid regulation range.

[0026] Align the 0 mark on the adjusting handle 12 with the mark on the valve body 1, then turn the adjusting nut 16 clockwise so that the adjusting core 5 is in close contact with the end face of the valve body 1. Then turn the adjusting positioning plate 13 counterclockwise to lock the adjusting nut 16. Read the scale on the adjusting handle 12 corresponding to the scale line on the adjusting positioning plate 13 and set the scale line directly opposite to the zero position.

[0027] After finding the zero position, loosen the adjusting nut 16 from the adjusting positioning plate 13, then turn the adjusting positioning plate 13 and the adjusting nut 16 counterclockwise at the same time, then align the scale on the adjusting positioning plate 13 with the required flow position, and tighten the adjusting nut 16.

[0028] Assuming a 360° differential of the circumference, a 270° flow regulation angle, and a 70° closing angle, with each 10° increment representing a division and the radius increasing by 0.37 for every 10° increment, then according to the Archimedes polar coordinate function (r = a + bθ), the equal division r values ​​of the AB-Archimedes spiral-based flow regulation channel are (as shown in Table 1):

[0029]

[0030]

[0031] Table 1

[0032] Based on the flow rate under the pressure required by the user, the cross-sectional area is obtained by dividing the flow rate above. There is a waist line on the outer circle of the adjustment positioning disk 13. When the waist line is hidden inside the adjustment handle 12, it is calculated as one circle, that is, 0 to 1.5 mm. When the waist line is displayed on the outside of the adjustment handle 12, it is calculated as one circle outside, that is, the cumulative value of 1.5 + 0 to 1.5.

[0033] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A linear flow regulating valve, characterized in that, The device includes a valve body, a valve core housing, a valve core assembly, a steel ball assembly, an adjusting assembly, a fixing button, an adjusting nut, and adjusting blocks. The valve core housing is disposed inside the valve body, the valve core assembly is disposed inside the valve core housing, the steel ball assembly is sleeved on the outer wall of the valve core housing, the adjusting assembly is sleeved on the outer wall of the valve core assembly, the adjusting nut is sleeved on the outer wall of the valve core assembly and located at the upper end of the adjusting assembly, and there are two adjusting blocks, each disposed on the outer wall of the valve core assembly and located at the upper end of the adjusting nut. The fixing button is disposed at the upper end of the adjusting nut and is threadedly connected to the adjusting nut. The valve core assembly includes a valve core bolt, an adjusting rod, an adjusting core, a cylindrical pin, and a third fluororubber ring. The valve core bolt is disposed inside the valve core housing. The adjusting rod is embedded inside the valve core bolt. The adjusting core is disposed inside the valve core housing and is adapted to the valve core bolt. The cylindrical pin is threaded to the adjusting core and passes through the adjusting core. The cylindrical pin also passes through the valve core bolt and the adjusting rod. The third fluororubber ring is sleeved on the outer wall of the valve core bolt. The ball assembly includes a ball retainer, a ball body, an angular contact ball cover, and a ball adjusting nut. The ball retainer is sleeved on the outer wall of the valve core housing. There are multiple ball bodies, each of which is embedded inside the ball retainer. The angular contact ball cover is sleeved on the outer wall of the valve core housing and covers the ball retainer. The ball adjusting nut is sleeved on the outer wall of the valve core housing and is located at the upper end of the angular contact ball cover. The adjustment assembly includes an adjustment handle, an adjustment positioning plate, and a fine-pitch nut. The adjustment handle is threadedly connected to the valve core bolt and is sleeved on the outer wall of the valve core bolt. The fine-pitch nut is threadedly connected to the valve core bolt and is located at the upper end of the adjustment handle. The adjustment positioning plate is threadedly connected to the valve core bolt and is located at the upper end of the adjustment handle. The fine-pitch nut is located between the adjustment positioning plate and the adjustment handle. The valve core housing, the valve core bolt, and the adjusting core together form an AB-Archimedes spiral-based flow regulating groove. The inner curve of the AB-Archimedes spiral-based flow regulating groove is set according to the Archimedean polar coordinates (r=a+bθ), and the outer circle is the inner circle of the large end of the valve core housing.

2. The linear flow regulating valve as described in claim 1, characterized in that, The linear flow regulating valve further includes a first fluororubber ring and a second fluororubber ring. There are two first fluororubber rings, which are respectively disposed between the valve core assembly and the valve body. The second fluororubber ring is sleeved on the outer wall of the valve core housing.

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