Three-eccentric center butterfly valve

Abstract

The utility model discloses a three-eccentric center butterfly valve which comprises a valve body, a butterfly valve assembly is installed in the valve body, a supporting mechanism is installed on the surface of the butterfly valve assembly, and a control mechanism is installed on the surface of the supporting mechanism. The supporting mechanism comprises a connecting pipe installed on the surface of the butterfly valve assembly, the surface of the connecting pipe is in threaded connection with two corresponding lantern rings, the surfaces of the two lantern rings are jointly and fixedly connected with a mounting plate, and the surface of the mounting plate is in threaded connection with three corresponding mounting bolts. The surface of the mounting plate is rotatably connected with a limiting rod, the surface of the limiting rod is rotatably connected with a connecting plate, the surface of the connecting plate is in threaded connection with a limiting bolt, and one side of the connecting plate is fixedly connected with a supporting plate. The three-eccentric center butterfly valve is more convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model belongs to butterfly valve technical field especially, it relates to a three eccentric butterfly valve. BACKGROUND

[0002] The butterfly valve is also called flap valve, it is a kind of simple structure regulating valve, butterfly valve stem axis is deviated from the center of disc and the center of body, and the valve seat rotation axis and the valve body channel axis have a certain angle, it is called three eccentric butterfly valve, three eccentric butterfly valve is widely used in medium certain temperature metallurgy, electric power, petroleum chemical industry, and water supply and drainage and municipal construction etc. Industrial pipeline, is used for regulating flow and load fluid. Material quality is divided into: cast iron, cast steel, stainless steel.

[0003] Chinese utility model patent (publication number: CN209762273U) discloses a kind of three eccentric butterfly valve, including a kind of three eccentric butterfly valve, including valve body, butterfly plate in valve body, valve stem and hand wheel, the two ends of the valve body are equipped with the first flange and the second flange parallel to each other, the first flange and the second flange are symmetrically provided with support mechanism left and right, the support mechanism includes the connecting rod perpendicular to the first flange, the second flange, the connecting piece vertically fixed on the connecting rod and the support arm hinged to the connecting piece, the support arm includes the hinge part hinged with the connecting piece and the support part, the outer side of the hinge part is vertically provided with limit block, the inner side of the support part is equipped with the arc-shaped groove compatible with the surface shape of valve body. The utility model is provided with support structure, can support valve body, keep the stability of valve body, facilitate worker to operate.

[0004] The technical scheme can keep the stability of valve body by the setting of support part and support plate, facilitate worker to operate valve body, place support part on desktop (or ground) to support valve body, and then keep the stability of valve body, facilitate worker to operate vertically placed valve body, but the above-mentioned support plate and support part can only support three eccentric butterfly valve, cannot support and protect three eccentric butterfly valve during installation and use, so that three eccentric butterfly valve directly contacts with ground during use, which can cause friction between three eccentric butterfly valve and ground during use and damage the surface of valve body. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of three eccentric butterfly valve to solve the technical problems in the above background.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a three eccentric butterfly valve, including the valve body, the inside installation of valve body is equipped with butterfly valve subassembly, the surface of butterfly valve subassembly is equipped with support mechanism, the surface of support mechanism is equipped with control mechanism, the support mechanism includes the connecting pipe of installation to the surface of butterfly valve subassembly, the surface of connecting pipe is equipped with two corresponding lantern rings, the surface of two lantern rings is fixedly connected with mounting plate together, the surface of mounting plate is equipped with three corresponding mounting bolts, the surface of mounting plate is rotatably connected with the limiting rod, the surface of limiting rod is rotatably connected with connecting plate, the surface of connecting plate is equipped with limiting bolt, one side of connecting plate is fixedly connected with support plate.

[0008] Further, the support plate corresponds to the valve body, the surface of the limiting rod is sleeved with a reset spring, and the reset spring is fixedly connected with the mounting plate.

[0009] Further, the two edges of one side of the mounting plate are fixedly connected with two fixed plates respectively, the two fixed plates are fixedly connected with the two lantern rings respectively, and the two sides of the surface of the connecting pipe are fixedly connected with two limiting plates respectively.

[0010] Further, the butterfly valve subassembly comprises a rotating rod rotatably connected to the inside of the valve body, the surface of the rotating rod is fixedly connected with a butterfly valve plate, the butterfly valve plate is rotatably connected to the inside of the valve body, one side of the butterfly valve plate is provided with a sealing ring, the butterfly valve plate corresponds to the valve body, the connecting pipe is fixedly connected to one side of the valve body, and the rotating rod is rotatably connected to the inside of the connecting pipe.

[0011] Further, the control mechanism comprises a communication pipe fixedly connected to one side of the connecting pipe through a bolt, one end of the communication pipe is fixedly connected with a control device, the control device corresponds to the rotating rod, and one side of the control device is rotatably connected with a rotating disc.

[0012] Further, one edge of the other side of the mounting plate is fixedly connected with a support block, the support block corresponds to the support plate, the support plate is rotatably connected with the mounting plate through the connecting plate, and the limiting bolt corresponds to the mounting plate.

[0013] The utility model discloses compared with prior art's beneficial effect is:

[0014] 1. The utility model discloses a support mechanism and control mechanism, when the three eccentric butterfly valve is used, the mutual cooperation of mounting plate and mounting bolt makes that three eccentric butterfly valve can be installed in the use position, and the position of mounting plate can change through the setting of lantern ring screw connection, so that the mounting plate can be installed in the position of different angle, makes the mounting plate and valve body synchronous complete installation, so that three eccentric butterfly valve is more convenient when installing.

[0015] 2. The three eccentric butterfly valve of the utility model uses, through the installation of installation plate, through the setting of support plate, the protection of one side of valve body, when the three eccentric butterfly valve is placed vertically, the support plate is pasted with the ground, the direct contact of valve body and the ground is avoided, so that the valve body avoids the friction with the ground and the problem of surface damage of the three eccentric butterfly valve, and through the setting of the support plate, the three eccentric butterfly valve is more stable when being used.

[0016] 3. The utility model discloses a support mechanism and butterfly valve assembly and the setting of other structures, when the sealing ring on the valve body or the component inside the valve body is replaced, by pulling the connecting plate, the limit rod moves, and the reset spring stretches, so that the connecting plate drives the support plate to move synchronously, the support plate is separated from the valve body, so that the limit bolt is disassembled, the support plate can not only be separated from the valve body, but also make the support plate rotate with the limit rod as the center, so that one side of the support plate and the lowest part of the control device are on the same horizontal line.

[0017] 4. The utility model discloses the rotation of support plate, makes the support plate support butterfly valve assembly, makes the staff when operating butterfly valve assembly, butterfly valve assembly is more stable, makes butterfly valve assembly more convenient when operating, and through the elastic force of reset spring, makes the limit rod and connecting plate reset of reset spring, makes the connecting plate and support plate more stable when supporting valve body assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic drawing of the utility model;

[0019] Figure 2 It is the structure schematic drawing of another view of the utility model;

[0020] Figure 3 It is the structure schematic drawing of another mode of the utility model;

[0021] Figure 4 It is the structure schematic drawing of the support mechanism of the utility model;

[0022] In the drawings, 1-valve body;2-connection pipe;3-sleeve ring;4-installation plate;5-installation bolt;6-limit rod;7-connecting plate;8-limit bolt;9-support plate;10-reset spring;11-fixed plate;12-limit plate;13-rotation rod;14-butterfly valve plate;15-communication pipe;16-control device;17-support block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following preferred embodiments are referred to the drawings and further described in detail. However, it should be pointed out that many details listed in the description are only for the reader to have a thorough understanding of one or more aspects of the utility model, and the aspects of the utility model can be realized without these specific details.

[0024] As shown in Figures 1-4 A three eccentric butterfly valve, including valve body 1, the inside of valve body 1 is installed butterfly valve assembly, butterfly valve assembly includes rotary rod 13 rotationally connected to the inside of valve body 1, the surface of rotary rod 13 is fixedly connected with butterfly valve plate 14, butterfly valve plate 14 is rotationally connected to the inside of valve body 1, the sealing of valve body 1 is carried out through butterfly valve plate 14, when valve body 1 is used, rotary rod 13 is rotated to drive butterfly valve plate 14 to rotate in the inside of valve body 1, so that butterfly valve plate 14 no longer seals valve body 1, so that the material can be transported through valve body 1, one side of butterfly valve plate 14 is provided with a sealing ring, the setting of the sealing ring can ensure the sealing of the three eccentric butterfly valve when not in use, to avoid external impurities entering the inside of the three eccentric butterfly valve;

[0025] Butterfly valve plate 14 corresponds to valve body 1, connecting pipe 2 is fixedly connected to one side of valve body 1, rotary rod 13 is rotationally connected to the inside of connecting pipe 2, the surface of butterfly valve assembly is provided with a supporting mechanism, the supporting mechanism includes connecting pipe 2 installed on the surface of butterfly valve assembly, two corresponding collars 3 are threadedly connected to the surface of connecting pipe 2, two limit plates 12 are fixedly connected to the surface of connecting pipe 2, the setting of limit plate 12 makes the rotation of collar 3 on the surface of connecting pipe 2 more stable;

[0026] Two limit plates 12 correspond to two collars 3 respectively, the surface of two collars 3 is fixedly connected with mounting plate 4, the two edges of one side of mounting plate 4 are fixedly connected with fixed plate 11 respectively, two fixed plates 11 are fixedly connected with two collars 3 respectively, the setting of fixed plate 11 makes the installation of collar 3 and mounting plate 4 more stable;

[0027] The surface of mounting plate 4 is threadedly connected with three corresponding mounting bolts 5, according to the installation position, two collars 3 are rotated, so that mounting plate 4 follows the rotation, so that mounting plate 4 is fitted with the required installation position of three eccentric butterfly valve, mounting plate 4 is installed at the required position through mounting bolt 5, so that connecting pipe 2, butterfly valve assembly and control mechanism are synchronously installed at the required position, so that three eccentric butterfly valve can be installed according to different requirements;

[0028] The surface of the mounting plate 4 is rotationally connected with a limiting rod 6, the surface of the limiting rod 6 is rotationally connected with a connecting plate 7, the surface of the connecting plate 7 is threadedly connected with a limiting bolt 8, the limiting bolt 8 corresponds to the mounting plate 4, one side of the connecting plate 7 is fixedly connected with a supporting plate 9, when the three eccentric butterfly valve is used vertically, the supporting plate 9 is attached to the ground, thereby avoiding friction between the three eccentric butterfly valve and the ground;

[0029] One edge of the other side of the mounting plate 4 is fixedly connected with a supporting block 17, the supporting block 17 corresponds to the supporting plate 9, the supporting plate 9 is rotationally connected with the mounting plate 4 through the connecting plate 7, the supporting plate 9 corresponds to the valve body 1, when the three eccentric butterfly valve is used horizontally, the supporting plate 9 is arranged on one side of the valve body 1, thereby protecting one side of the surface of the valve body 1, so that the three eccentric butterfly valve is safer during use;

[0030] The surface of the limiting rod 6 is sleeved with a reset spring 10, the reset spring 10 is fixedly connected with the mounting plate 4, the reset spring 10 is pulled to reset the limiting rod 6 and the connecting plate 7 through the elastic force of the reset spring 10, so that the connecting plate 7 and the supporting plate 9 support the valve body assembly more stably;

[0031] The surface of the supporting mechanism is provided with a control mechanism, the control mechanism comprises a communication pipe 15 fixedly connected to one side of the connecting pipe 2, one end of the communication pipe 15 is fixedly connected with a control device 16, the control device 16 corresponds to the rotating rod 13, one side of the control device 16 is rotationally connected with a rotating disc, the rotating disc is rotated to drive the rotating rod 13 to rotate, thereby starting or closing the butterfly valve plate 14.

[0032] Specifically, when the three eccentric butterfly valve is used, two collars 3 are rotated according to the installation position, so that the mounting plate 4 is rotated, the mounting plate 4 is attached to the required installation position of the three eccentric butterfly valve, the mounting plate 4 is installed at the required position through the mounting bolt 5, so that the connecting pipe 2, the butterfly valve assembly and the control mechanism are synchronously installed at the required position, so that the three eccentric butterfly valve can be installed according to different requirements;

[0033] When the three eccentric butterfly valve is used vertically, the supporting plate 9 is attached to the ground, thereby avoiding friction between the three eccentric butterfly valve and the ground, when the three eccentric butterfly valve is used horizontally, the supporting plate 9 is arranged on one side of the valve body 1, thereby protecting one side of the surface of the valve body 1, so that the three eccentric butterfly valve is safer during use;

[0034] When the components inside the valve body 1 need to be maintained, the limiting bolt 8 is disassembled, the connecting plate 7 is pulled, the supporting plate 9 is synchronously moved with the limiting rod 6, the reset spring 10 is stretched, the supporting plate 9 is separated from the valve body 1, then the connecting plate 7 is rotated, the supporting plate 9 follows the rotation of 90°, so that one side of the supporting plate 9 is at the same level with the lowest part of the control device 16, the supporting plate 9 supports the valve body assembly at the same time with the control device 16, so that the worker is more stable when maintaining the components inside the valve body 1, and the valve body 1 is more convenient to maintain.

[0035] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A triple offset butterfly valve comprising a valve body, characterised in that: The inside of the valve body is provided with a butterfly valve assembly, the surface of the butterfly valve assembly is provided with a supporting mechanism, and the surface of the supporting mechanism is provided with a control mechanism.

2. A triple offset butterfly valve according to claim 1, characterized in that: The supporting mechanism comprises a connecting pipe installed on the surface of the butterfly valve assembly, the surface of the connecting pipe is threadedly connected with two corresponding collars, the surfaces of the two collars are fixedly connected with an installation plate, the surface of the installation plate is threadedly connected with three corresponding installation bolts, the surface of the installation plate is rotatably connected with a limiting rod, the surface of the limiting rod is rotatably connected with a connecting plate, the surface of the connecting plate is threadedly connected with a limiting bolt, and one side of the connecting plate is fixedly connected with a supporting plate.

3. A triple offset butterfly valve according to claim 1, characterized in that: The supporting plate corresponds to the valve body, the surface of the limiting rod is sleeved with a reset spring, and the reset spring is fixedly connected with the installation plate.

4. A triple offset butterfly valve according to claim 1, characterized in that: The two edges of one side of the installation plate are fixedly connected with two fixed plates, the two fixed plates are fixedly connected with the two collars respectively, the surfaces of the connecting pipe are fixedly connected with two limiting plates, and the two limiting plates correspond to the two collars respectively.

5. A triple offset butterfly valve according to claim 4, characterised in that: The butterfly valve assembly comprises a rotating rod rotatably connected to the inside of the valve body, the surface of the rotating rod is fixedly connected with a butterfly valve plate, the butterfly valve plate is rotatably connected to the inside of the valve body, one side of the butterfly valve plate is provided with a sealing ring, the butterfly valve plate corresponds to the valve body, the connecting pipe is fixedly connected to one side of the valve body, and the rotating rod is rotatably connected to the inside of the connecting pipe.

6. A triple offset butterfly valve according to claim 1, characterized in that: The control mechanism comprises a communicating pipe fixedly connected to one side of the connecting pipe by bolts, one end of the communicating pipe is fixedly connected with a control device, the control device corresponds to the rotating rod, and one side of the control device is rotatably connected with a rotating disc. One edge of the other side of the installation plate is fixedly connected with a supporting block, the supporting block corresponds to the supporting plate, the supporting plate is rotatably connected with the installation plate through the connecting plate, and the limiting bolt corresponds to the installation plate.

Images