Lifting type pore plate regulating valve

Abstract

The utility model provides a lift type orifice plate regulating valve which comprises a valve body and a driving device, one side of the valve body is vertically provided with a kidney-shaped moving groove and is detachably provided with a fixing plate, the fixing plate is provided with a through hole, the other side of the valve body is provided with a throttling hole, the throttling hole and the through hole are both communicated with the moving groove, a moving plate is arranged in the moving groove in a sliding mode, and the moving plate is provided with a through hole. The two sides of the movable plate are always tightly attached to the valve body and the fixed plate in the sliding process, overflowing holes are formed in the movable plate and correspond to the throttling holes, the driving device comprises a valve shaft and a hand wheel, the lower end of the valve shaft penetrates through the valve body to be connected with the movable plate, and the hand wheel is connected with the valve shaft and used for controlling the movable plate to ascend and descend in the movable groove through the valve shaft. And therefore, the overflowing hole and the throttling hole are aligned or staggered. The two sides of the movable plate are tightly attached to the fixed plate and the valve body respectively, the sealing effect is guaranteed, when the lifting type pore plate adjusting valve is closed, the movable plate is tightly pressed on the valve body through water pressure, and the high-strength hard sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of orifice valves, in particular to a lifting orifice regulating valve. Background Art

[0002] The orifice valve is a commonly used flow control device and is widely used in various fields. The Chinese utility model patent with the authorization announcement number CN205877238U discloses an orifice valve, which controls the flow of the pipeline by installing a fixed orifice plate and a movable orifice plate in the valve body and controlling the lifting and lowering of the movable orifice plate using a driving device. However, in this solution, the movable orifice plate and the fixed orifice plate are restricted in the valve body by the cover plate on the right side. The water pressure on the left side acts on the movable orifice plate, the fixed orifice plate and the cover plate. If the left side of the movable orifice plate is not sealed with the inner wall of the valve body, water will easily leak from the valve shaft. In addition, since the water pressure changes when the orifice valve is opened and closed, the cover plate may become loose under the long-term action of the changing water pressure, resulting in poor sealing effect and water leakage. Utility Model Content

[0003] The purpose of the utility model is to address the defects of the existing technology and provide a lifting orifice regulating valve, in which the throttling hole is directly opened on the valve body, the movable plate is restricted in the movable groove of the valve body by the fixed plate, and the two sides of the movable plate are respectively tightly attached to the fixed plate and the valve body to ensure the sealing effect, and when the lifting orifice regulating valve is closed, the water pressure presses the movable plate tightly against the valve body to achieve a high-strength hard sealing effect.

[0004] The cam is connected to the valve body by a push-pull mechanism, and the cam is connected with the valve body to form a camshaft, and the cam is connected with the valve body to form a through-hole, and the cam is connected with the valve body to form a through-hole.

[0005] In some embodiments, a slot is provided on the top of the movable plate, and an insert block is provided at the lower end of the valve shaft. The insert block is inserted into the slot and has an interference fit with the slot.

[0006] Furthermore, the slot and the insert are both T-shaped or trapezoidal.

[0007] In some embodiments, the diameters of the flow holes and the throttle holes are both d, and the flow holes and the throttle holes are vertically arranged in multiple rows. In each row of flow holes and throttle holes, the spacing between two adjacent flow holes and two adjacent throttle holes is L, and the maximum displacement distance of the movable plate is S.

[0008] In some embodiments, the depth of the moving groove is b, the thickness of the moving plate is B, and 0≤bB≤0.03 mm.

[0009] Preferably, a plurality of second sealing ring grooves are provided on the valve shaft, a second sealing ring is provided on the second sealing ring groove, and the second sealing ring is in close contact with the valve body.

[0010] Preferably, a first sealing ring is provided between the fixing plate and the valve body.

[0011] In some embodiments, the driving device includes a nut, the handwheel is fixedly connected to the nut, and is used to drive the nut to rotate axially. An outer edge is provided on the outer wall of the nut, and a valve cover is fixedly provided on the top of the valve body. The outer edge is arranged between the valve body and the valve cover. The valve cover is used to limit the axial movement of the nut, and the nut is threadedly connected to the upper end of the valve shaft.

[0012] Furthermore, the nut is in a convex shape.

[0013] Furthermore, a sleeve is provided at the center of the handwheel, and the sleeve is sleeved on the top of the nut and fixedly connected to the nut through a pin.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model opens the throttle hole directly on the valve body, and the movable plate is restricted in the movable groove of the valve body by the fixed plate. The two sides of the movable plate are respectively in close contact with the fixed plate and the valve body, thereby ensuring the sealing effect. When the lifting orifice regulating valve is closed, the water pressure presses the movable plate tightly against the valve body, thereby achieving a high-strength hard sealing effect.

[0016] 2. The movable plate and the valve shaft of the utility model are connected through the slot and the plug-in block. After the valve shaft is installed, when the movable plate is placed in the movable groove, the plug-in block of the valve shaft is directly pressed into the slot of the movable plate, which is convenient and quick to install.

[0017] 3. The utility model limits the size relationship between the depth b of the movable groove and the thickness B of the movable plate, that is, 0≤bB≤0.03mm, so that the two sides of the movable plate can perfectly match with the fixed plate and the valve body respectively, ensuring the sealing effect.

[0018] 4. The utility model prevents water from leaking through the fixed plate by arranging a first sealing ring between the fixed plate and the valve body; and ensures the sealing between the valve shaft and the valve body by providing a plurality of second sealing ring grooves on the valve shaft and arranging second sealing rings on the second sealing ring grooves, thereby preventing water from leaking through the valve shaft.

[0019] 5. The utility model realizes the lifting and lowering of the valve shaft by controlling the handwheel by providing a convex-shaped nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 This is a cross-sectional view of the valve body of the present utility model;

[0023] Figure 4 for Figure 3 Middle AA cross-section;

[0024] Figure 5 This is a structural diagram of the movable plate of the utility model;

[0025] Figure 6 It is a cross-sectional view of the movable plate of the utility model;

[0026] Figure 7 This is a schematic structural diagram of the valve shaft of the utility model;

[0027] Figure 8 This is a schematic diagram of the valve opening change and water flow in the utility model.

[0028] Reference numerals:

[0029] Valve body 1; moving groove 11; throttle hole 12; first sealing ring groove 13; third connecting hole 14;

[0030] Fixed plate 2; through hole 21; first connecting hole 22; second connecting hole 23;

[0031] Movable plate 3; flow hole 31; slot 32;

[0032] Drive device 4; valve shaft 41; second sealing ring groove 42; nut 43; outer edge 44; handwheel 45; sleeve 46; latch 47; plug block 48;

[0033] Valve cover 5. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0035] like Figure 1 、 2 As shown, the utility model provides a lifting orifice regulating valve, including a valve body 1 and a driving device 4, as shown in FIG. Figure 3 、 4 As shown, a waist-shaped movable groove 11 is vertically opened on one side of the valve body 1, that is, the length direction of the movable groove 11 is parallel to the vertical direction, and a throttling hole 12 is opened on the other side of the valve body 1. The diameter of the throttling hole 12 is d, and the throttling holes 12 are arranged in multiple rows. The spacing between two adjacent rows is L, and the spacing between two adjacent throttling holes 12 in each row is also L. The throttling holes 12 in two adjacent rows are staggered.

[0036] like Figure 2 As shown, a detachable fixing plate 2 is provided on one side of the valve body 1 where the movable groove 11 is provided. A through hole 21 is provided on the fixing plate 2. The throttle hole 12 and the through hole 21 are both connected to the movable groove 11, so that water can flow through the valve body 1 in sequence through the through hole 21, the movable groove 11, and the throttle hole 12. Figure 1 As shown, four first connection holes 22 and four second connection holes 23 are provided on the fixing plate 2. The first connection holes 22 are used for threaded connection with the valve body 1, and the second connection holes 23 are used for connection with the pipeline flange.

[0037] like Figure 2 As shown, the movable plate 3 is arranged in a sliding manner in the movable groove 11. The two sides of the movable plate 3 are always in close contact with the valve body 1 and the fixed plate 2 respectively during the sliding process. Figure 5 、 6 As shown, the movable plate 3 defines flow holes 31, which are arranged corresponding to the throttle holes 12. Specifically, the diameter of the flow holes 31 is d, and the flow holes 31 are arranged in multiple rows, with a spacing of L between adjacent rows. The spacing between adjacent flow holes 31 in each row is also L. The flow holes 31 in adjacent rows are staggered, allowing water flowing into the valve body 1 from the through hole 21 to flow out through the flow holes 31 and the throttle holes 12. The specific number, location, and diameter of the throttle holes 12 and flow holes 31 can be adjusted according to the flow rate and pressure adjustment range.

[0038] like Figure 1 As shown, the driving device 4 includes a valve shaft 41 and a hand wheel 45. The lower end of the valve shaft 41 passes through the valve body 1 and is connected to the movable plate 3. The hand wheel 45 is connected to the valve shaft 41. The hand wheel 45 can control the lifting and lowering of the valve shaft 41, thereby controlling the lifting and lowering of the movable plate 3 in the movable groove 11, so that the flow hole 31 and the throttle hole 12 are aligned or misaligned, as shown in FIG. Figure 8As shown, when the flow hole 31 is completely aligned with the throttle hole 12, the lifting orifice plate regulating valve is in a fully open state. When the misalignment distance between the flow hole 31 and the throttle hole 12 is greater than the diameter, the lifting orifice plate regulating valve is in a fully closed state. The rest of the cases are partially open.

[0039] It can be understood that the throttle hole 12 of the lifting orifice regulating valve is directly opened on the valve body 1, and the movable plate 3 is restricted in the movable groove 11 of the valve body 1 by the fixed plate 2. The two sides of the movable plate 3 are tightly attached to the fixed plate 2 and the valve body 1 respectively, ensuring the sealing effect, and when the lifting orifice regulating valve is closed, the water pressure presses the movable plate 3 tightly against the valve body 1, achieving a high-strength hard sealing effect.

[0040] It should be noted that as the movable plate 3 rises and falls within the movable groove 11, the position where the through-hole 21 of the fixed plate 2 is provided always presses against the movable plate 3, ensuring a tight seal between the movable plate 3 and the inner wall of the valve body 1 where the throttle hole 12 is provided. When the lift-type orifice plate regulating valve is fully open, the bottom of the movable plate 3 is in contact with the bottom of the valve body 1. When the lift-type orifice plate regulating valve is fully closed, the movable plate 3 moves to the top of the movable groove 11, and water can only flow through the flow hole 31 of the movable plate 3.

[0041] In some embodiments, as Figure 5 As shown, a slot 32 is provided on the top of the movable plate 3. Figure 7 As shown, an insert block 48 is provided at the lower end of the valve shaft 41 , and the insert block 48 is inserted into the slot 32 and has an interference fit with the slot 32 .

[0042] Furthermore, the slot 32 and the insert block 48 are both T-shaped or trapezoidal.

[0043] It can be understood that the movable plate 3 and the valve shaft 41 need to be installed in the movable groove 11. After the valve shaft 41 is inserted into the movable groove 11, when the movable plate 3 is placed in the movable groove 11, the insert block 48 of the valve shaft 41 can be directly pressed into the slot 32 of the movable plate 3, which makes installation convenient and quick.

[0044] In some embodiments, the diameters of the flow holes 31 and the throttle holes 12 are both d, and the flow holes 31 and the throttle holes 12 are vertically arranged in multiple rows. In each row of flow holes 31 and throttle holes 12, the distance between two adjacent flow holes 31 and two adjacent throttle holes 12 is L, and the maximum displacement distance of the movable plate 3 is S.

[0045] In some embodiments, the depth of the moving groove 11 is b, the thickness of the moving plate 3 is B, and 0≤bB≤0.03 mm.

[0046] It can be understood that by limiting the size relationship between the depth b of the movable groove 11 and the thickness B of the movable plate 3, that is, 0≤bB≤0.03mm, the two sides of the movable plate 3 are respectively in a compressed state with the fixed plate 2 and the valve body 1, ensuring perfect coordination between the structures and ensuring the sealing effect without affecting the control of the lifting and lowering of the movable plate 3.

[0047] In addition, to ensure that the movable plate 3 can move flexibly in the movable groove 11 and the sealing is better, the end faces of the movable plate 3 and the fixed plate 2 must be flat ground, and the surface roughness must reach Ra0.8um or higher.

[0048] Preferably, if Figure 7 As shown, the valve shaft 41 is provided with a plurality of second sealing ring grooves 42, and a second sealing ring is provided on the second sealing ring groove 42, and the second sealing ring is in close contact with the valve body 1. The second sealing ring ensures the sealing between the valve shaft 41 and the valve body 1, preventing water from leaking through the valve shaft 41.

[0049] Preferably, if Figure 3 As shown, a first sealing ring groove 13 is formed on the end surface of the valve body 1 that contacts the fixing plate 2, and a first sealing ring is arranged in the first sealing ring groove 13. The first sealing ring can prevent water from leaking through the fixing plate 2.

[0050] In some embodiments, the Figure 2 The handwheel 45 is used to control the lifting and lowering of the valve shaft 41 in the manner shown. The driving device 4 includes a nut 43, and the handwheel 45 is fixedly connected to the nut 43 for driving the nut 43 to rotate axially. The outer wall of the nut 43 is provided with an outer edge 44. A valve cover 5 is fixedly provided on the top of the valve body 1. The outer edge 44 is arranged between the valve body 1 and the valve cover 5. The valve cover 5 is used to limit the axial movement of the nut 43. The nut 43 is threadedly connected to the upper end of the valve shaft 41. Figure 4 As shown, a third connecting hole 14 is opened on the top of the valve body 1, and the valve cover 5 is threadedly connected to the valve body 1 through the third connecting hole 14 and bolts, and the valve cover 5 is fitted with the nut 43.

[0051] It can be understood that since the valve cover 5 limits the axial movement of the nut 43, when the handwheel 45 drives the nut 43 to rotate, the valve shaft 41 is threadedly connected to the nut 43, and the valve shaft 41 will move axially under the action of the thread, thereby realizing the lifting and lowering of the valve shaft 41.

[0052] Furthermore, the nut 43 is in a convex shape, and its outer edge 44 is integrally provided on the side wall of the nut 43 near the lower end.

[0053] Furthermore, a sleeve 46 is provided at the center of the hand wheel 45 . The sleeve 46 is sleeved on the top of the nut 43 and is fixedly connected to the nut 43 via a pin 47 .

[0054] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A lifting orifice regulating valve, characterized by: The invention comprises a valve body (1) and a driving device (4), wherein a waist-shaped moving groove (11) is vertically provided on one side of the valve body (1), a fixing plate (2) is detachably provided on the side of the valve body (1) where the moving groove (11) is provided, a through hole (21) is provided on the fixing plate (2), a throttle hole (12) is provided on the other side of the valve body (1), the throttle hole (12) and the through hole (21) are both communicated with the moving groove (11), a moving plate (3) is slidably arranged in the moving groove (11), and both sides of the moving plate (3) are always in close contact with the valve body (1) and the fixing plate (2) during the sliding process, and the moving plate ( 3), a flow hole (31) is provided on the valve body (1), and the flow hole (31) and the throttle hole (12) are arranged correspondingly, so that the water flowing into the valve body (1) from the through hole (21) can flow out through the flow hole (31) and the throttle hole (12), and the driving device (4) includes a valve shaft (41) and a hand wheel (45), the lower end of the valve shaft (41) passes through the valve body (1) and is connected to the movable plate (3), and the hand wheel (45) is connected to the valve shaft (41) and is used to control the lifting of the movable plate (3) in the movable groove (11) through the valve shaft (41), so that the flow hole (31) and the throttle hole (12) are aligned or misaligned.

2. The lifting orifice regulating valve according to claim 1, characterized in that: A slot (32) is provided at the top of the movable plate (3), and an insert block (48) is provided at the lower end of the valve shaft (41). The insert block (48) is inserted into the slot (32) and is interference-fitted with the slot (32).

3. The lifting orifice regulating valve according to claim 2, characterized in that: The slot (32) and the inserting block (48) are both T-shaped or trapezoidal.

4. The lifting orifice regulating valve according to any one of claims 1 to 3, characterized in that: The diameters of the flow holes (31) and the throttle holes (12) are both d, and the flow holes (31) and the throttle holes (12) are vertically arranged in multiple rows. In each row of flow holes (31) and throttle holes (12), the spacing between two adjacent flow holes (31) and two adjacent throttle holes (12) is L, and the maximum displacement distance of the movable plate (3) is S.

5. The lifting orifice regulating valve according to any one of claims 1 to 3, characterized in that: The depth of the movable groove (11) is b, the thickness of the movable plate (3) is B, and 0≤bB≤0.03mm.

6. The lifting orifice regulating valve according to any one of claims 1 to 3, characterized in that: A plurality of second sealing ring grooves (42) are provided on the valve shaft (41), a second sealing ring is provided on the second sealing ring groove (42), and the second sealing ring is in close contact with the valve body (1).

7. The lifting orifice regulating valve according to any one of claims 1 to 3, characterized in that: A first sealing ring is provided between the fixing plate (2) and the valve body (1).

8. The lifting orifice regulating valve according to any one of claims 1 to 3, characterized in that: The driving device (4) includes a nut (43), the hand wheel (45) is fixedly connected to the nut (43) and is used to drive the nut (43) to rotate axially, the outer wall of the nut (43) is provided with an outer edge (44), the top of the valve body (1) is fixedly provided with a valve cover (5), the outer edge (44) is arranged between the valve body (1) and the valve cover (5), the valve cover (5) is used to limit the axial movement of the nut (43), and the nut (43) is threadedly connected to the upper end of the valve shaft (41).

9. The lifting orifice regulating valve according to claim 8, characterized in that: The nut (43) is in a convex shape.

10. The lifting orifice regulating valve according to claim 8, characterized in that: A sleeve (46) is provided at the center of the hand wheel (45), and the sleeve (46) is sleeved on the top of the nut (43) and fixedly connected to the nut (43) through a latch (47).

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