Bidirectional sealing double-eccentric butterfly valve

Abstract

The utility model discloses a bi-directional sealing double-eccentric butterfly valve which comprises an eccentric butterfly valve body, a bi-directional sealing assembly is fixedly arranged at one end in the eccentric butterfly valve body, a valve body eccentric sleeve is fixedly arranged above the eccentric butterfly valve body in a penetrating mode, and a butterfly valve inner rotating shaft is rotationally connected in the eccentric butterfly valve body and the valve body eccentric sleeve. An eccentric inner valve plate assembly is arranged at one end of the butterfly valve inner rotating shaft, and a sealing piece mounting ring is fixedly arranged at one end in the eccentric butterfly valve body. According to the utility model, the bidirectional sealing assembly is embedded on the sealing element mounting ring in the valve body of the eccentric butterfly valve, and the fixing bolt penetrates through the sealing element mounting through hole and is screwed into the sealing element mounting screw hole, so that the installation is completed; and fixing bolts penetrate through fitting ring mounting through holes and are screwed into fitting ring mounting screw holes, so that the valve plate component and the fitting ring component can be conveniently mounted and dismounted, and the two-way sealing assembly and the fitting ring component of the structure can be more conveniently dismounted and replaced after being abraded and aged in the later period.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve equipment technical field, concretely is a bidirectional sealing's double eccentric butterfly valve. BACKGROUND

[0002] Bidirectional sealing's double eccentric butterfly valve is a kind of high-performance butterfly valve with bidirectional sealing function, it realizes the efficient switching and sealing function of valve by the design of double eccentric;

[0003] But the bidirectional sealing's double eccentric butterfly valve of current existing bidirectional sealing's double eccentric butterfly valve cannot carry out the convenient disassembly replacement to the part of internal sealing adhesion when using, so needs to replace valve body whole after aging wear in later use, and the cost of higher. UTILITY MODEL CONTENTS

[0004] The utility model discloses a bidirectional sealing's double eccentric butterfly valve to solve the problem that the bidirectional sealing's double eccentric butterfly valve of current existing bidirectional sealing's double eccentric butterfly valve cannot carry out the convenient disassembly replacement to the part of internal sealing adhesion when using, so needs to replace valve body whole after aging wear in later use, and the cost of higher.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a bidirectional sealing's double eccentric butterfly valve, comprising: eccentric butterfly valve valve body, the eccentric butterfly valve valve body inside one end is fixedly arranged with bidirectional sealing assembly, the eccentric butterfly valve valve body top is fixedly provided with valve body eccentric sleeve, the eccentric butterfly valve valve body and valve body eccentric sleeve inside rotationally connected have butterfly valve inner shaft, the butterfly valve inner shaft one end is provided with eccentric inner valve plate assembly, the eccentric butterfly valve valve body inside one end is fixedly arranged with seal installation ring, the seal installation ring one end inside is arranged with seal installation screw hole.

[0006] As the further scheme of the utility model: the bidirectional sealing assembly includes seal ring body, the seal ring body one end is fixedly arranged with valve plate sealing ring, the valve plate sealing ring outside is arranged with annular recess, the seal ring body inside is provided with outer inclined surface, the valve plate sealing ring inside is provided with inner inclined surface, the seal ring body inside one end is arranged with seal installation through-hole.

[0007] As the further scheme of the utility model: the eccentric inner valve plate assembly includes valve plate component, the valve plate component one end is fixedly arranged with adhesion ring component by bolt, the valve plate component and the adhesion ring component are arranged inside the eccentric butterfly valve valve body.

[0008] As a further scheme of the utility model: the valve plate component contains a valve plate connecting seat, a rotating shaft through hole is arranged in the valve plate connecting seat, locking screw holes are arranged on both sides of the valve plate connecting seat, a valve plate base plate is fixedly arranged at one end of the valve plate connecting seat, a valve plate annular embedding groove is arranged at one end of the valve plate base plate, a valve plate mounting seat is fixedly arranged at the middle of one end of the valve plate base plate, a valve plate embedding seat is fixedly arranged at the middle of one end of the valve plate mounting seat, a fitting circle mounting screw hole is arranged at one end of the valve plate mounting seat, the fitting circle component contains a fitting circle body, and a fitting circle mounting through hole is arranged in the fitting circle body.

[0009] As a further scheme of the utility model: the rotating shaft through hole is adapted to the rotating shaft in the butterfly valve, the locking screw holes are arranged in four groups, the valve plate mounting seat is adapted to the fitting circle body in specification, the valve plate embedding seat is adapted to the inner diameter of the fitting circle body in diameter specification, and the fitting circle mounting screw hole and the fitting circle mounting through hole are all arranged in multiple groups and are adapted to each other in specification position.

[0010] As a further scheme of the utility model: a filling limiting part is fixedly arranged at one end of the valve body eccentric sleeve through bolts, a sleeve reinforcing plate is fixedly arranged on the side of the valve body eccentric sleeve, valve body mounting flanges are fixedly arranged at both ends of the outer side of the eccentric butterfly valve body, and valve body mounting through holes are arranged in the valve body mounting flanges.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] In the utility model, the bidirectional sealing assembly is embedded on the sealing part mounting ring in the eccentric butterfly valve body, the installation is completed by the fixed bolt penetrating the sealing part mounting through hole and being screwed into the sealing part mounting screw hole, the valve plate component and the fitting circle component can be conveniently installed and dismounted by the fixed bolt penetrating the fitting circle mounting through hole and being screwed into the fitting circle mounting screw hole, the bidirectional sealing assembly and the fitting circle component of the structure can be conveniently dismounted and replaced after later wear and aging, and the like.

[0013] In the utility model, the sealing washers are embedded in the annular embedding groove and the valve plate annular embedding groove between the valve plate component and the fitting circle component, at this time, the valve plate sealing ring with the embedded sealing washers on the outer side is embedded in the inner side of the sealing part mounting ring, the two groups of sealing washers can play a better sealing effect when the eccentric inner valve plate assembly is closed, and the like. ACCURATE DRAWING

[0014] Figure 1 It is the whole structure schematic view of the bidirectional sealing double eccentric butterfly valve of the utility model;

[0015] Figure 2 It is the internal structure schematic view of the eccentric butterfly valve body in the bidirectional sealing double eccentric butterfly valve of the utility model;

[0016] Figure 3 is the structure schematic view of the bidirectional sealing assembly in the bidirectional sealing double eccentric butterfly valve of the utility model;

[0017] Figure 4 is the structure schematic view of the eccentric inner valve plate assembly in the bidirectional sealing double eccentric butterfly valve of the utility model;

[0018] Figure 5 is the structure schematic view of the valve plate component in the bidirectional sealing double eccentric butterfly valve of the utility model;

[0019] Figure 6 is the structure schematic view of the adhering ring component in the bidirectional sealing double eccentric butterfly valve of the utility model.

[0020] In the figure: 1, eccentric butterfly valve body; 2, bidirectional sealing assembly; 3, valve body eccentric sleeve; 4, butterfly valve inner rotating shaft; 5, eccentric inner valve plate assembly; 6, sealing element installation ring; 7, sealing element installation screw hole; 8, filling limiting piece; 9, sleeve reinforcing plate; 10, valve body installation flange; 11, valve body installation through hole; 20, sealing element ring body; 21, valve plate sealing ring; 22, annular embedding groove; 23, outer inclined surface; 24, inner inclined surface; 25, sealing element installation through hole; 50, valve plate component; 51, adhering ring component; 501, valve plate connecting seat; 502, rotating shaft through hole; 503, locking screw hole; 504, valve plate base plate; 505, valve plate annular embedding groove; 506, valve plate installation seat; 507, valve plate embedding seat; 508, adhering ring installation screw hole; 509, adhering ring body; 510, adhering ring installation through hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0023] Referring to Figure 1 and Figure 2 In the utility model embodiment, a bidirectional sealing double eccentric butterfly valve comprises an eccentric butterfly valve body 1, a bidirectional sealing assembly 2 is fixedly arranged at one end in the eccentric butterfly valve body 1, a valve body eccentric sleeve 3 is fixedly arranged through the upper portion of the eccentric butterfly valve body 1, a butterfly valve inner rotating shaft 4 is rotatably connected in the eccentric butterfly valve body 1 and the valve body eccentric sleeve 3, an eccentric inner valve plate assembly 5 is arranged at one end of the butterfly valve inner rotating shaft 4, a sealing element mounting ring 6 is fixedly arranged at one end in the eccentric butterfly valve body 1, and a sealing element mounting screw hole 7 is formed in the inner end of the sealing element mounting ring 6.

[0024] Referring to Figure 3 The bidirectional sealing assembly 2 comprises a sealing element ring body 20, a valve plate sealing ring 21 is fixedly arranged at one end of the sealing element ring body 20, an annular embedding groove 22 is formed in the outer side of the valve plate sealing ring 21, an outer inclined surface 23 is arranged on the inner side of the sealing element ring body 20, an inner inclined surface 24 is arranged on the inner side of the valve plate sealing ring 21, and a sealing element mounting through hole 25 is formed around the inner end of the sealing element ring body 20.

[0025] Referring to Figure 4 The eccentric inner valve plate assembly 5 comprises a valve plate component 50, a lamination ring component 51 is fixedly arranged at one end of the valve plate component 50 through a bolt, and the valve plate component 50 and the lamination ring component 51 are arranged in the eccentric butterfly valve body 1.

[0026] Referring to Figure 5 and Figure 6The valve plate part 50 comprises a valve plate connecting seat 501, a rotating shaft through hole 502 is formed in the valve plate connecting seat 501, locking screw holes 503 are formed on both sides of the valve plate connecting seat 501, a valve plate base plate 504 is fixedly arranged at one end of the valve plate connecting seat 501, a valve plate annular embedding groove 505 is formed at one end of the valve plate base plate 504, a valve plate mounting seat 506 is fixedly arranged at one end of the valve plate base plate 504, a valve plate embedding seat 507 is fixedly arranged at one end of the valve plate mounting seat 506, a fitting ring mounting screw hole 508 is formed in one end of the valve plate mounting seat 506, the fitting ring part 51 comprises a fitting ring body 509, a fitting ring mounting through hole 510 is formed in the fitting ring body 509, the rotating shaft through hole 502 is matched with the inner rotating shaft 4 of the butterfly valve, the locking screw holes 503 are formed in four groups, the valve plate mounting seat 506 is matched with the fitting ring body 509 in specification, the valve plate embedding seat 507 is matched with the inner diameter of the fitting ring body 509 in diameter specification, and the fitting ring mounting screw holes 508 and the fitting ring mounting through holes 510 are matched in specification and position.

[0027] By adopting the above scheme, the bidirectional sealing assembly 2 is embedded on the sealing element mounting ring 6 in the eccentric butterfly valve body 1, installation is completed by screwing the fixing bolts through the sealing element mounting through holes 25 into the sealing element mounting screw holes 7, and the valve plate part 50 and the fitting ring part 51 can be conveniently installed and dismounted by screwing the fixing bolts through the fitting ring mounting through holes 510 into the fitting ring mounting screw holes 508, so that the bidirectional sealing assembly 2 and the fitting ring part 51 of the structure can be more conveniently dismounted and replaced after later wear and aging.

[0028] Referring to Figure 1 A filling limiting part 8 is fixedly arranged at one end of the valve body eccentric sleeve 3 through a bolt, a sleeve reinforcing plate 9 is fixedly arranged on the side of the valve body eccentric sleeve 3, valve body mounting flanges 10 are fixedly arranged at both ends of the outer side of the eccentric butterfly valve body 1, and valve body mounting through holes 11 are formed in the valve body mounting flanges 10.

[0029] The working principle of the utility model is as follows: when in use, the bidirectional sealing assembly 2 is embedded on the sealing element mounting ring 6 in the eccentric butterfly valve body 1, installation is completed by screwing the fixing bolts through the sealing element mounting through holes 25 into the sealing element mounting screw holes 7, and the valve plate part 50 and the fitting ring part 51 can be conveniently installed and dismounted by screwing the fixing bolts through the fitting ring mounting through holes 510 into the fitting ring mounting screw holes 508, so that the bidirectional sealing assembly 2 and the fitting ring part 51 of the structure can be more conveniently dismounted and replaced after later wear and aging, and sealing washers can be embedded in the annular embedding groove 22 and the valve plate annular embedding groove 505 between the valve plate part 50 and the fitting ring part 51, at this time, the valve plate sealing ring 21 with the embedded sealing washers on the outer side is embedded in the inner side of the sealing element mounting ring 6, so that the two groups of sealing washers can be closed when the eccentric inner valve plate assembly 5 is closed, and the structure can achieve better sealing effect.

[0030] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A double-eccentric butterfly valve with bidirectional sealing, characterized in that, Include: The eccentric butterfly valve body (1), the both-way sealing assembly (2) is fixedly arranged in the inside one end of the eccentric butterfly valve body (1), the valve body eccentric sleeve (3) is fixedly arranged on the upper through of the eccentric butterfly valve body (1), the butterfly valve inner rotating shaft (4) is rotatably connected in the inside of the eccentric butterfly valve body (1) and the valve body eccentric sleeve (3), the eccentric inner valve plate assembly (5) is arranged in one end of the butterfly valve inner rotating shaft (4), the sealing ring mounting ring (6) is fixedly arranged in the inside one end of the eccentric butterfly valve body (1), the sealing ring mounting screw hole (7) is opened in the inside one end of the sealing ring mounting ring (6).

2. A double offset butterfly valve with bidirectional sealing according to claim 1, characterized in that The both-way sealing assembly (2) contains the sealing ring body (20), the valve plate sealing ring (21) is fixedly arranged in one end of the sealing ring body (20), the annular embedding groove (22) is opened in the outside of the valve plate sealing ring (21), the outer inclined surface (23) is arranged in the inside of the sealing ring body (20), the inner inclined surface (24) is arranged in the inside of the valve plate sealing ring (21), the sealing ring mounting through hole (25) is opened in the inside one end of the sealing ring body (20).

3. A double-eccentric butterfly valve of claim 1, wherein The eccentric inner valve plate assembly (5) contains the valve plate component (50), the abutting ring component (51) is fixedly arranged in one end of the valve plate component (50) through bolt, the valve plate component (50) and the abutting ring component (51) are arranged in the inside of the eccentric butterfly valve body (1).

4. A double-eccentric butterfly valve of the bidirectional sealing type according to claim 3, characterized in that, The valve plate component (50) contains the valve plate connecting seat (501), the rotating shaft through hole (502) is opened in the inside of the valve plate connecting seat (501), the locking screw hole (503) is opened in the inside both sides of the valve plate connecting seat (501), the valve plate base plate (504) is fixedly arranged in one end of the valve plate connecting seat (501), the valve plate annular embedding groove (505) is opened in the outside one end of the valve plate base plate (504), the valve plate mounting seat (506) is fixedly arranged in the middle one end of the valve plate base plate (504), the valve plate embedding seat (507) is fixedly arranged in the middle one end of the valve plate mounting seat (506), the abutting ring mounting screw hole (508) is opened in the inside one end of the valve plate mounting seat (506), the abutting ring component (51) contains the abutting ring body (509), the abutting ring mounting through hole (510) is opened in the inside of the abutting ring body (509).

5. A double-eccentric butterfly valve of the bidirectional sealing type according to claim 4, characterized in that, The rotating shaft through hole (502) is adapted to the butterfly valve inner rotating shaft (4), the locking screw hole (503) is opened with four groups, the valve plate mounting seat (506) is adapted to the abutting ring body (509) in specification, the valve plate embedding seat (507) is adapted to the inner diameter of the abutting ring body (509) in diameter specification, the abutting ring mounting screw hole (508) and the abutting ring mounting through hole (510) are all set with multiple groups and are adapted in specification position.

6. A double offset butterfly valve of claim 1, wherein, The filling limiting part (8) is fixedly arranged in the upper one end of the valve body eccentric sleeve (3) through bolt, the sleeve reinforcing plate (9) is fixedly arranged in the side of the valve body eccentric sleeve (3), the valve body mounting flange (10) is fixedly arranged in the outside both ends of the eccentric butterfly valve body (1), the valve body mounting through hole (11) is opened in the inside of the valve body mounting flange (10).

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