Skew plate valve

Abstract

The utility model discloses an inclined plate valve, which relates to the technical field of inclined plate valves, and comprises a valve body, the inner wall of the valve body is rotatably connected with a butterfly plate, the butterfly plate is inclined, the surfaces of the left side and the right side of the butterfly plate are respectively and fixedly connected with a connecting bulge, and the two connecting bulges are respectively arranged on the surfaces of the left side and the right side of the butterfly plate. A first annular sealing groove is formed in the outer surface of the butterfly plate, a first O-shaped ring is arranged in the first annular sealing groove, clamping lugs are fixedly connected to the surfaces of the upper side and the lower side of the valve body correspondingly, a mounting base is fixedly connected to the surface of the upper side of the valve body, and a filler bin is formed in the surface of the upper side of the mounting base. The inclined butterfly plate, the first O-shaped ring and the inner arc face of the valve body form linear sealing, the sealing effect is improved, meanwhile, the problems that resistance is large during rotation, and abrasion is prone to occurring can be solved, the service life is prolonged, the torque during opening and closing is reduced, and meanwhile the hidden danger of sealing leakage at the positions of an upper shaft and a lower shaft can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of skew gate valve, especially skew gate valve. BACKGROUND

[0002] The butterfly valve is also called the flap valve, and it is a simple structure regulating valve, and can be used for the on-off control of low-pressure pipeline medium, the butterfly valve is a kind of valve, the closing piece (valve disc or butterfly plate) is a disc, rotates around the valve shaft to achieve opening and closing, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium. It mainly plays the role of cutting off and throttling on the pipeline. The butterfly valve opening and closing element is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening, closing or adjusting.

[0003] In the existing center line soft sealing butterfly valve, the valve plate is a straight plate structure, when the medium contacts the valve plate, resistance is easy to be generated, flow is reduced, at the same time, vortex and eddy current are easy to be generated, the residence time of medium in the valve body is prolonged, thereby the friction and erosion of medium to the valve body are increased, the service life of the valve body is reduced, and wear is easy to occur in the process of rotation of the butterfly plate, thereby large torque is caused. In view of this, the skew gate valve is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing skew gate valve to solve the problems in the above background.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a skew gate valve, comprising a valve body, the inner wall of the valve body is rotationally connected with a butterfly plate, the butterfly plate is arranged in an inclined manner, the left and right side surfaces of the butterfly plate are respectively fixedly connected with connecting protrusions, the two connecting protrusions are respectively arranged on the left and right side surfaces of the butterfly plate, a first annular sealing groove is formed in the outer surface of the butterfly plate, a first O-shaped ring is arranged in the first annular sealing groove, the upper and lower side surfaces of the valve body are respectively fixedly connected with clamping ears, the upper side surface of the valve body is fixedly connected with a mounting seat, a packing chamber is formed in the upper side surface of the mounting seat, a packing gland is arranged on the inner wall of the packing chamber, and the lower side surface of the valve body is fixedly connected with a shaft sleeve.

[0006] Preferably, the inside of the shaft sleeve is provided with a lower valve rod and an adjusting rod, and the lower end of the lower valve rod is in contact with the upper end of the adjusting rod.

[0007] Preferably, a second annular sealing groove is formed in the outer surface of the adjusting rod, and a second O-shaped ring is sleeved in the second annular sealing groove.

[0008] Preferably, the lower end of the adjusting rod extends out of the shaft sleeve, and the lower end of the adjusting rod is hexagonal.

[0009] Preferably, the upper side surface of the packing gland is provided with a through groove, and the inside of the through groove is sleeved with a packing washer.

[0010] Preferably, the opposite side surfaces of the two connecting protrusions are respectively provided with sockets, the sockets are rectangular, the inside of the upper socket is provided with a valve rod, and the upper and lower ends of the valve rod are both provided with a rectangular shape matched with the socket.

[0011] Preferably, the outer surface of the valve rod is sleeved with two packings, the outer surface of the valve rod is sleeved with a spacer, the spacer is located between the two packings, and the upper side surface of the packing gland is provided with a fixing hole extending out of the lower side surface.

[0012] Preferably, the inside of the fixing hole is threaded with a fixing bolt, the outer surface of the fixing bolt is sleeved with a hexagonal nut and a butterfly elastic pad, and an open ring is arranged between the valve rod and the connecting protrusion.

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

[0014] 1. The skew plate valve, by means of the oblique arrangement of the butterfly plate, the first O-shaped ring and the inner arc surface of the valve body, forms linear sealing, improves the sealing effect, avoids the problems of large resistance and easy wear during rotation, prolongs the service life and reduces the torque during opening and closing, and also solves the hidden danger of sealing leakage at the upper and lower shafts.

[0015] 2. The skew plate valve, by means of the cooperation of the adjusting rod and the lower valve rod, can also be used as a regulating valve, and in addition to the worm gear transmission, the skew plate valve can also be electrically driven and pneumatically driven, and has a wider application range. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in connection with the drawings and embodiments:

[0017] Figure 1 It is a structure schematic view of the utility model skew plate valve;

[0018] Figure 2 It is a butterfly plate plane schematic view of the utility model;

[0019] Figure 3 It is a separation schematic view of the utility model;

[0020] Figure 4 It is Figure 3 The enlarged view of A in the middle;

[0021] Figure 5 It is Figure 3 The enlarged view of B in the middle.

[0022] Fig. 1 is a valve body; 2 is a butterfly plate; 3 is a connecting protrusion; 4 is a first annular sealing groove; 5 is a first O-shaped ring; 6 is a clamping ear; 7 is a mounting seat; 8 is a packing chamber; 9 is a packing gland; 10 is a shaft sleeve; 11 is a lower valve stem; 12 is an adjusting rod; 13 is a second annular sealing groove; 14 is a second O-shaped ring; 15 is a through groove; 16 is a gland washer; 17 is a spigot; 18 is a valve stem; 19 is packing; 20 is a spacer sleeve; 21 is a fixing hole; 22 is a fixing bolt; 23 is a hexagonal nut; 24 is a butterfly spring washer; 25 is a split ring. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] Please refer to Figures 1-5 The utility model provides a technical scheme: the skew plate valve, the inner wall rotationally connected with butterfly plate 2 is connected to valve body 1, butterfly plate 2 is set as inclined, the left and right two side surfaces of butterfly plate 2 are fixedly connected with connecting protrusion 3 respectively, two connecting protrusions 3 are set respectively on the left and right two side surfaces of butterfly plate 2, the outer surface of butterfly plate 2 is equipped with first annular sealing groove 4, the inside of first annular sealing groove 4 is provided with first O-shaped ring 5, the upper and lower two side surfaces of valve body 1 are fixedly connected with clamping ear 6 respectively, the upper side surface of valve body 1 is fixedly connected with mounting seat 7, the upper side surface of mounting seat 7 is equipped with packing chamber 8, the inner wall of packing chamber 8 is provided with packing gland 9, the lower side surface of valve body 1 is fixedly connected with shaft sleeve 10, the linear sealing of valve body inner arc surface is formed by the inclined butterfly plate 2 and first O-shaped ring 5, improves the sealing effect, also can avoid the problem that the resistance is large and easy to wear when rotating, prolongs the service life and reduces the torque when opening and closing, and also can solve the hidden danger of sealing leakage at the upper and lower shafts.

[0025] Further, the inside of the shaft sleeve 10 is provided with the lower valve rod 11 and the adjusting rod 12, the lower end of the lower valve rod 11 is in contact with the upper end of the adjusting rod 12, the outer surface of the adjusting rod 12 is provided with the second annular sealing groove 13, the inside of the second annular sealing groove 13 is sleeved with the second O-shaped ring 14, the lower end of the adjusting rod 12 extends out of the shaft sleeve 10, the lower end of the adjusting rod 12 is provided in a hexagonal shape, the upper side surface of the packing gland 9 is provided with the through groove 15, the inside of the through groove 15 is sleeved with the packing ring 16, the opposite side surfaces of the two connecting protrusions 3 are respectively provided with the insertion port 17, the insertion port 17 is provided in a rectangular shape, the inside of the upper insertion port 17 is provided with the valve rod 18, the upper and lower ends of the valve rod 18 are both provided in a rectangular shape matched with the insertion port 17, the outer surface of the valve rod 18 is sleeved with the two packing 19, the outer surface of the valve rod 18 is sleeved with the spacer sleeve 20, the spacer sleeve 20 is located between the two packing 19, the upper side surface of the packing gland 9 is provided with the fixed hole 21 extending out of the lower side surface thereof, the inside of the fixed hole 21 is threadedly sleeved with the fixed bolt 22, the outer surface of the fixed bolt 22 is sleeved with the hexagonal nut 23 and the butterfly elastic pad 24, the valve rod 18 and the connecting protrusion 3 are provided with the split ring 25, by means of cooperation of the adjusting rod 12 and the lower valve rod 11, the wafer plate valve can also be used as a regulating valve, and in addition to the worm gear transmission, the wafer plate valve can also be electrically driven, pneumatically driven, and has a wider application range.

[0026] The packing 19 in the embodiment is made of fluorine and flexible graphite, the first O-shaped ring 5 and the second O-shaped ring 14 are both made of fluorine rubber, and the valve is a partial ball valve with inner arc sealing.

[0027] Working principle: an angle is formed between the valve core sealing surface and the rotating shaft, linear sealing is formed by the first O-shaped ring 5 and the inner arc surface of the valve body, and the valve rod 18 is connected with the insertion port 17 on the connecting protrusion 3, so that the control of the wafer plate 2 is facilitated.

[0028] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A wafer valve comprising a valve body (1), characterized in that: The inner wall of the valve body (1) is rotationally connected with a butterfly plate (2), the butterfly plate (2) is arranged in an inclined manner, the left and right side surfaces of the butterfly plate (2) are fixedly connected with connecting protrusions (3) respectively, the two connecting protrusions (3) are arranged on the left and right side surfaces of the butterfly plate (2) respectively, the outer surface of the butterfly plate (2) is provided with a first annular sealing groove (4), the first annular sealing groove (4) is provided with a first O-shaped ring (5) in the inside, the upper and lower side surfaces of the valve body (1) are fixedly connected with clamping ears (6) respectively, the upper side surface of the valve body (1) is fixedly connected with a mounting seat (7), the upper side surface of the mounting seat (7) is provided with a packing chamber (8), the inner wall of the packing chamber (8) is provided with a packing gland (9), and the lower side surface of the valve body (1) is fixedly connected with a shaft sleeve (10).

2. The distortion plate valve according to claim 1, characterized in that: The inside of the shaft sleeve (10) is provided with a lower valve rod (11) and an adjusting rod (12), and the lower end of the lower valve rod (11) is in contact with the upper end of the adjusting rod (12).

3. The distortion plate valve according to claim 2, characterized in that: The outer surface of the adjusting rod (12) is provided with a second annular sealing groove (13), and the second annular sealing groove (13) is provided with a second O-shaped ring (14) in the inside.

4. The distortion plate valve according to claim 3, characterized in that: The lower end of the adjusting rod (12) extends out of the shaft sleeve (10), and the lower end of the adjusting rod (12) is arranged in a hexagonal shape.

5. The distortion plate valve of claim 1, wherein: The upper side surface of the packing gland (9) is provided with a through groove (15), and the through groove (15) is provided with a gland gasket (16) in the inside.

6. The distortion plate valve of claim 1, wherein: The opposite side surfaces of the two connecting protrusions (3) are respectively provided with sockets (17), the sockets (17) are arranged in a rectangular shape, the inside of the upper socket (17) is provided with a valve rod (18), and the upper and lower ends of the valve rod (18) are arranged in a rectangular shape matched with the socket (17).

7. The distortion plate valve according to claim 6, characterized in that: The outer surface of the valve rod (18) is provided with two packing (19), the outer surface of the valve rod (18) is provided with a spacer sleeve (20), the spacer sleeve (20) is located between the two packing (19), and the upper side surface of the packing gland (9) is provided with a fixing hole (21) extending out of the lower side surface thereof.

8. The distortion plate valve according to claim 7, characterized in that: The inside of the fixing hole (21) is threadedly provided with a fixing bolt (22), the outer surface of the fixing bolt (22) is provided with a hexagonal nut (23) and a butterfly elastic pad (24), and the valve rod (18) and the connecting protrusion (3) are provided with a split ring (25).

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