Improved eccentric butterfly valve

Abstract

The utility model belongs to the technical field of eccentric butterfly valves, and particularly relates to an improved eccentric butterfly valve which comprises a valve shell, an adjusting rod seat is fixedly connected to the upper end of the valve shell, an adjusting rod is rotatably connected to the left side of the upper end of the adjusting rod seat, a rotating disc is fixedly connected to the left side of the adjusting rod, and a base is fixedly connected to the lower end of the valve shell. A valve plate mechanism is arranged on the right side of the interior of the valve shell, a left ring groove and a right ring groove are formed in a valve plate, a left limiting pad and a right limiting pad are clamped in the left ring groove and the right ring groove, then the left limiting pad and the right limiting pad are tightly attached to the interiors of the left ring groove and the right ring groove through extrusion of a left baffle and a right baffle correspondingly, and therefore limiting of a sealing ring is increased, and falling off is avoided; and by arranging a filter screen, dirt in fluid can be conveniently filtered, the filtered dirt is collected in a dirt collecting box through a connecting pipe, and the dirt is discharged by opening a dirt discharging nozzle, so that the dirt is prevented from flowing to the right side of the interior of the valve plate, and the situation that the dirt damages the valve plate is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to eccentric butterfly valve technical field, concretely is an improved eccentric butterfly valve. BACKGROUND

[0002] Eccentric butterfly valve is divided into single eccentric butterfly valve, double eccentric butterfly valve, three eccentric butterfly valve, eccentric butterfly valve. With concentric butterfly valve opposite. The valve rod axle center deviates from the disc center and the body center at the same time, and the sealing pair is the butterfly valve of the inclined vertebrae and is called eccentric butterfly valve.

[0003] According to patent authorized announcement number: CN201910402601.8 proposes an improved eccentric butterfly valve, including the valve body, the upper surface of the valve body is fixedly installed with the packing seat, the upper surface of the packing seat is fixedly installed with the fixed shell, the left and right two sides of the inner side wall of the fixed shell are all clamped with the sealing bearing a, and the inner side wall of two sealing bearings a is all sleeved on the outer surface of the worm, the left end of the worm is fixedly installed with the hand wheel, the worm is engaged with the worm wheel;The recess is installed with the mounting plate through the spring, the sealing gasket b on the mounting plate is attached with the sealing pad a on the valve plate, so that the valve plate closes and extrudes the spring, the sealing gasket b and the sealing pad a are attached more closely by the elastic action of the spring, avoid the fluid to leak and overflow when the valve plate closes, the sealing property is better, the inclined surface is arranged on the sealing gasket b, so that the valve plate can extrude the sealing gasket b and drive the spring to contract when rotating, the spring is made to generate force and acts on the sealing gasket b by the elasticity, and use is more convenient.

[0004] But the sealing gasket ring of the valve plate sleeve of the improved eccentric butterfly valve in the prior art is directly sleeved on the surface of the valve plate or clamped in the recess of the valve plate, so that the limiting stability is poor, and the sealing gasket ring is easy to separate from the valve plate after repeatedly rotating the valve plate, thereby affecting the sealing property of the sealing gasket ring, and the existing eccentric butterfly valve does not have a filtering effect, so that the particulate impurities mixed in the fluid are easy to accumulate in the butterfly valve when passing through the eccentric butterfly valve, affecting the normal use of the eccentric butterfly valve and reducing the service life. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an improved eccentric butterfly valve, which solves the problems of installation of the sealing gasket ring and filtering of fluid.

[0006] To achieve the above object, the utility model provides the following technical scheme: an improved eccentric butterfly valve, including a valve shell, the upper end of the valve shell is fixedly connected with a regulating rod seat, the upper end left side of the regulating rod seat is rotatably connected with a regulating rod, the left side of the regulating rod is fixedly connected with a rotating disc, the lower end of the valve shell is fixedly connected with a base, the right side in the inside of the valve shell is provided with a valve plate mechanism, the left side in the inside of the valve shell is provided with a filtering mechanism.

[0007] Preferably, the valve plate mechanism comprises a valve plate, the inside of the valve shell is connected with the valve plate, the right side of the valve plate is fixedly connected with a mounting sleeve, the inside of the mounting sleeve is fixedly connected with a rotating shaft, the upper end of the rotating shaft is connected to the inside of the adjusting lever seat, and the lower end of the rotating shaft is connected to the inside of the base.

[0008] Preferably, the left side of the valve plate is provided with a left ring groove, the right side of the valve plate is provided with a right ring groove, the valve plate is sleeved with a sealing ring, and the sealing ring is extruded by the valve plate and tightly sealed to the inner wall of the valve shell.

[0009] Preferably, the left side of the sealing ring is fixedly connected with a left limiting pad, the right side of the sealing ring is fixedly connected with a right limiting pad, the left limiting pad is connected to the inside of the left ring groove, and the right limiting pad is connected to the inside of the right ring groove.

[0010] Preferably, the left side of the valve plate is fixedly connected with a left baffle, and the right side of the valve plate is fixedly connected with a plurality of right baffles.

[0011] Preferably, the filtering mechanism comprises a filter screen, the inside left side of the valve shell is fixedly connected with the filter screen, the right side of the filter screen is fixedly connected with a plurality of reinforcing ribs, the reinforcing ribs are fixedly connected to the inside of the valve shell, the inside left side of the valve shell is fixedly connected with a front inclined plate and a rear inclined plate, and the front inclined plate and the rear inclined plate are respectively fixedly connected to the left side of the filter screen.

[0012] Preferably, the left side of the valve shell is fixedly connected with a connecting pipe, the lower end of the connecting pipe is fixedly connected with a sewage collecting box, the sewage collecting box is fixedly connected to the left lower end of the valve shell, and the lower end of the sewage collecting box is fixedly connected with a sewage discharge nozzle.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a left ring groove and a right ring groove are set to the valve plate, the left ring groove and the right ring groove are connected with the left limiting pad and the right limiting pad, and then the left limiting pad and the right limiting pad are extruded and tightly attached to the inside of the left ring groove and the right ring groove through the left baffle and the right baffle respectively, so that the limiting of the sealing ring is increased, the sealing ring is prevented from falling off, and the use effect is improved.

[0015] 2、The utility model discloses a filter screen is set, and the dirt in the fluid is filtered conveniently, the dirt is collected in the sewage collecting box through the connecting pipe, and is discharged through the opening of the sewage discharge nozzle, so that the dirt is prevented from flowing to the inside right side of the valve plate, and the valve plate is prevented from being damaged by the dirt. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a whole structure solid Figure 1 ;

[0017] Figure 2 The utility model discloses a whole structure solidFigure 2 ;

[0018] Figure 3 The utility model discloses a partial structure solid Figure 1 ;

[0019] Figure 4 The utility model discloses a partial structure solid Figure 2 ;

[0020] Figure 5 It is the schematic diagram of the partial structure of the utility model;

[0021] Figure 6 It is the sectional view of the valve plate of the utility model.

[0022] In the drawing: 1 valve shell, 2 adjusting lever seat, 3 adjusting lever, 4 rotating disc, 5 base, 6 valve plate mechanism, 7 filter mechanism, 61 valve plate, 62 mounting sleeve, 63 rotating shaft, 64 left ring groove, 65 right ring groove, 66 sealing ring, 67 left limit pad, 68 right limit pad, 69 left baffle, 610 right baffle, 71 filter screen, 72 reinforcing rib, 73 front inclined plate, 74 rear inclined plate, 75 connecting pipe, 76 sewage collecting tank, 77 sewage outlet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , an improved eccentric butterfly valve, including valve shell 1, the upper end of valve shell 1 is fixedly connected with adjusting lever seat 2, the upper end left side of adjusting lever seat 2 is rotatably connected with adjusting lever 3, the left side of adjusting lever 3 is fixedly connected with rotating disc 4, the lower end of valve shell 1 is fixedly connected with base 5, adjusting lever seat 2, adjusting lever 3 and rotating disc 4 are prior art respectively, the technical scheme will not be repeated, the right side in the inside of valve shell 1 is provided with valve plate mechanism 6, the left side in the inside of valve shell 1 is provided with filter mechanism 7.

[0025] Please refer to Figure 1 , Figure 4 , Figure 5 , Figure 6The valve plate mechanism 6 comprises a valve plate 61, the valve plate 61 is connected to the inside of the valve shell 1, the right side of the valve plate 61 is fixedly connected with a mounting sleeve 62, the inside of the mounting sleeve 62 is fixedly connected with a rotating shaft 63, the upper end of the rotating shaft 63 is connected to the adjusting rod 3, the rotating shaft 63 is driven to rotate through the rotation of the adjusting rod 3, the upper end of the rotating shaft 63 is connected to the inside of the adjusting rod seat 2, the lower end of the rotating shaft 63 is connected to the inside of the base 5, the left side of the valve plate 61 is provided with a left ring groove 64, the right side of the valve plate 61 is provided with a right ring groove 65, the valve plate 61 is sleeved with a sealing ring 66, the sealing ring 66 is tightly sealed to the inner wall of the valve shell 1 by being extruded by the valve plate 61, the left side of the sealing ring 66 is fixedly connected with a left limiting pad 67, the right side of the sealing ring 66 is fixedly connected with a right limiting pad 68, the left limiting pad 67 is connected to the inside of the left ring groove 64, the right limiting pad 68 is connected to the inside of the right ring groove 65, the left side of the valve plate 61 is fixedly connected with a left baffle 69, the right side of the valve plate 61 is fixedly connected with a plurality of right baffles 610, the left baffle 69 is tightly sealed to the left side of the valve plate 61 by being extruded by the left limiting pad 67, the right baffles 610 are tightly sealed to the right side of the valve plate 61 by being extruded by the right limiting pad 68, and the right baffles 610 are semicircular in shape.

[0026] Please refer to Figure 2 、 Figure 3 The filtering mechanism 7 comprises a filter screen 71, the left side in the inside of the valve shell 1 is fixedly connected with the filter screen 71, the right side of the filter screen 71 is fixedly connected with a plurality of reinforcing ribs 72, the filter screen 71 is reinforced through the arrangement of the reinforcing ribs 72, and the use effect is increased, the reinforcing ribs 72 are fixedly connected to the inside of the valve shell 1, the left side in the inside of the valve shell 1 is fixedly connected with a front inclined plate 73 and a rear inclined plate 74, the front inclined plate 73 and the rear inclined plate 74 are respectively fixedly connected to the left side of the filter screen 71, through the arrangement of the front inclined plate 73 and the rear inclined plate 74, dirt is conveniently collected into the inside of the connecting pipe 75, the left side of the valve shell 1 is fixedly connected with the connecting pipe 75, the lower end of the connecting pipe 75 is fixedly connected with a dirt collecting box 76, the dirt collecting box 76 is fixedly connected to the left lower end of the valve shell 1, and the lower end of the dirt collecting box 76 is fixedly connected with a dirt outlet 77.

[0027] The specific implementation process of the utility model is as follows: in use, fluid flows to the left side in the inside of the valve shell 1, then is filtered through the filter screen 71, the filtered fluid flows to the right side in the inside of the valve shell 1 through the filter screen 71, and simultaneously the filtered dirt falls and is collected into the inside of the dirt collecting box 76 through the connecting pipe 75, and the dirt can be discharged by opening the dirt outlet 77;

[0028] The left baffle 69 and the right baffles 610 extrude the left limiting pad 67 and the right limiting pad 68 respectively, so that the stability of the limiting sealing ring 66 is increased, and the sealing effect of the valve plate 61 is increased.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved eccentric butterfly valve comprising a valve housing (1) characterized in that: The upper end of the valve shell (1) is fixedly connected with an adjusting lever seat (2), the upper end of the left side of the adjusting lever seat (2) is rotatably connected with an adjusting lever (3), the left side of the adjusting lever (3) is fixedly connected with a rotating disc (4), the lower end of the valve shell (1) is fixedly connected with a base (5), the right side of the inside of the valve shell (1) is provided with a valve plate mechanism (6), and the left side of the inside of the valve shell (1) is provided with a filtering mechanism (7).

2. The improved eccentric butterfly valve according to claim 1, wherein: The valve plate mechanism (6) comprises a valve plate (61), the inside of the valve shell (1) is connected with the valve plate (61), the right side of the valve plate (61) is fixedly connected with a mounting sleeve (62), the inside of the mounting sleeve (62) is fixedly connected with a rotating shaft (63), the upper end of the rotating shaft (63) is connected to the inside of the adjusting lever seat (2), and the lower end of the rotating shaft (63) is connected to the inside of the base (5).

3. The improved eccentric butterfly valve as claimed in claim 2, wherein: The left side of the valve plate (61) is provided with a left annular groove (64), the right side of the valve plate (61) is provided with a right annular groove (65), the valve plate (61) is sleeved with a sealing ring (66), and the valve plate (61) extrudes the sealing ring (66) to be tightly sealed to the inner wall of the valve shell (1).

4. The improved eccentric butterfly valve as claimed in claim 3, wherein: The left side of the sealing ring (66) is fixedly connected with a left limiting pad (67), the right side of the sealing ring (66) is fixedly connected with a right limiting pad (68), the left limiting pad (67) is connected to the inside of the left annular groove (64), and the right limiting pad (68) is connected to the inside of the right annular groove (65).

5. The improved eccentric butterfly valve as claimed in claim 2, wherein: The left side of the valve plate (61) is fixedly connected with a left baffle (69), and the right side of the valve plate (61) is fixedly connected with a plurality of right baffles (610).

6. The improved eccentric butterfly valve as claimed in claim 1, wherein: The filtering mechanism (7) comprises a filter screen (71), the left side of the inside of the valve shell (1) is fixedly connected with the filter screen (71), the right side of the filter screen (71) is fixedly connected with a plurality of reinforcing ribs (72), the reinforcing ribs (72) are fixedly connected to the inside of the valve shell (1), the left side of the inside of the valve shell (1) is fixedly connected with a front inclined plate (73) and a rear inclined plate (74), and the front inclined plate (73) and the rear inclined plate (74) are fixedly connected to the left side of the filter screen (71) respectively.

7. The improved eccentric butterfly valve as claimed in claim 6, wherein: The left side of the valve shell (1) is fixedly connected with a connecting pipe (75), the lower end of the connecting pipe (75) is fixedly connected with a sewage collecting tank (76), the sewage collecting tank (76) is fixedly connected to the left lower end of the valve shell (1), and the lower end of the front side of the sewage collecting tank (76) is fixedly connected with a sewage discharge nozzle (77).

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