CN220102091U - Three eccentric butterfly valve of lug - Google Patents

Abstract

The utility model provides a lug triple eccentric butterfly valve, which comprises a butterfly valve shell and an emergency water stopping mechanism, wherein the emergency water stopping mechanism comprises a mounting sleeve, a connecting flange, a limiting groove, a sliding rod, a front disc, a limiting disc, a circulating groove and a limiting disc, the outer side surface of the butterfly valve shell is fixedly connected with the flange, the top of the butterfly valve shell is fixedly connected with a mounting block, the inner side surface of the mounting block is rotationally linked with a valve rod, the outer side surface of the valve rod is fixedly connected with a valve clack, the top surface of the valve rod is fixedly connected with a control rod, the outer side surface of the butterfly valve shell is provided with the emergency water stopping mechanism, and when the mounting sleeve is connected with other pipelines through the connecting flange, if the connecting pipelines suddenly drop, the front disc and the limiting disc are pushed out outwards by liquid, so that the section of the mounting sleeve can be completely blocked, and resource waste caused by massive liquid outflow can be prevented.

Description

Three eccentric butterfly valve of lug

Technical Field

The utility model relates to the technical field related to butterfly valves, in particular to a lug triple offset butterfly valve.

Background

The valve is characterized in that the valve is provided with a longer service life, and can maintain good performance in a severe working environment, the three eccentric center of the lug is widely applied to the fields of chemical industry, petroleum, natural gas, water treatment and the like, and is used for controlling the flow and pressure of fluid, the valve is completely separated from the valve seat, friction and abrasion are reduced, so that the excellent sealing performance is realized, the valve can effectively prevent fluid leakage, ensure safe and reliable operation of a system, the valve clack and the valve seat of the three eccentric butterfly valve are made of corrosion-resistant and wear-resistant materials, such as stainless steel, alloy steel and the like, and the valve is used for controlling the flow and pressure of the fluid.

However, in the existing three-eccentric butterfly valves with lugs, most of the three-eccentric butterfly valves with lugs are used for controlling the circulation on and off of the connecting positions of the pipelines after the pipelines are connected, but loose pipelines at the connecting positions can be caused to fall off in the long-time working process, or the connecting pipelines can be removed under the condition that the liquid in the pipelines is not cut off by incorrect treatment, so that a large amount of liquid can flow out to cause waste, and particularly for high-pressure or harmful media, safety risks such as fire, explosion, leakage of chemicals and the like can be caused, and the leaked media can pollute the surrounding environment, such as polluted soil, water source or air. This can have negative effects on both the ecosystem and human health, and if leakage occurs during industrial production, loss of large amounts of fluid can lead to production interruption, affecting production efficiency and production planning.

Disclosure of Invention

The utility model aims to provide a three-eccentric butterfly valve with lugs, which solves the problems that in the prior art, the three-eccentric butterfly valve with lugs is used for controlling the circulation on and off of a pipeline joint after the pipeline is connected in the use process, but loose pipelines at the joint can be possibly caused to fall off in the long-time working process, or the connecting pipelines are taken down under the condition that the pipeline liquid is not cut off by incorrect treatment, so that a large amount of liquid flows out and waste is caused.

In order to achieve the above purpose, the utility model provides a three-eccentric lug butterfly valve, which comprises a butterfly valve shell and an emergency water stopping mechanism, wherein the emergency water stopping mechanism comprises a mounting sleeve, a connecting flange, a limiting groove, a sliding rod, a front disc, a limiting disc, a circulating groove and a stop disc, the flange is fixedly connected with the outer side surface of the butterfly valve shell, a mounting block is fixedly connected with the top of the butterfly valve shell, a valve rod is rotationally linked with the inner side surface of the mounting block, a valve clack is fixedly connected with the outer side surface of the valve rod, a control rod is fixedly connected with the top surface of the valve rod, the emergency water stopping mechanism is arranged on the outer side surface of the butterfly valve shell, and an adjusting limiting structure is arranged on the outer side surface of the valve rod.

Preferably, the emergency water stop mechanism comprises a mounting sleeve, a connecting flange, a limit groove, a sliding rod, a front disc, a limit disc, a circulation groove and a stop disc, wherein the mounting sleeve is fixedly connected with the outer side surface of the butterfly valve shell, the connecting flange is fixedly connected with the outer side surface of the mounting sleeve, the limit groove is formed in the inner side surface of the mounting sleeve, the sliding rod is slidingly connected with the inner side surface of the limit groove, one end of the sliding rod is fixedly connected with the front disc, the outer side surface of the front disc is fixedly connected with the limit disc, the circulation groove is formed in the outer side surface of the front disc, and the stop disc is fixedly connected with the other end of the sliding rod.

Preferably, the radial dimensions of the two ends of the mounting sleeve are inconsistent, one end with a larger radius of the mounting sleeve is fixedly connected with the butterfly valve shell, and the limiting grooves are annularly distributed on the inner side surface of the mounting sleeve.

Preferably, the radial dimension of the limiting disc is larger than the radial dimension of the smaller end of the radius of the mounting sleeve, the circulating groove penetrates through the front disc, and the limiting disc is fixedly connected to the outer side surface of the stop disc.

Preferably, the regulation limit structure is including first stopper, second stopper, mounting disc, screw thread post, hand wheel, contact tray, slipmat and limiting plate, the outside surface rotation of valve rod is connected with first stopper, the outside surface rotation of valve rod is connected with the second stopper, the top fixedly connected with mounting disc of installation piece, the inboard surface threaded connection of second stopper has the screw thread post, the bottom fixedly connected with hand wheel of screw thread post, the top fixedly connected with contact tray of screw thread post, the inboard surface fixedly connected with slipmat of contact tray, the bottom fixedly connected with limiting plate of control rod.

Preferably, the first limiting block and the second limiting block are U-shaped, and the inner side surfaces of the first limiting block and the second limiting block are in sliding connection with the outer side surface of the mounting disc.

Preferably, the inner side surface of the first limiting block is in threaded connection with a threaded column, the contact disc is in sliding connection with the inner side surface of the second limiting block, and the anti-slip pad is made of rubber.

Compared with the prior art, the utility model has the beneficial effects that: this lug triple offset butterfly valve, through the installation sleeve, flange, the spacing groove, the slide bar, the leading dish, the spacing dish, the setting of circulation groove and cut-off disc, in the in-process of using, the leading dish is in the same place through the slide bar with cut-off disc, form a widget that is used for urgent stagnant water, this part is connected with the installation sleeve and can lateral shifting on the installation sleeve, the spacing groove plays spacing and gliding effect, and prevent this widget from dropping from the installation sleeve through the spacing dish, when the installation sleeve passes through flange and other pipe connection, the pipeline of connection can push away the inside of installation sleeve with leading dish and cut-off disc through the widget that the slide bar is connected together, because the radial size of installation sleeve both ends is inconsistent, the inside of installation sleeve can't be covered completely to the widget, the liquid that flows through after opening can get into and flow from the circulation groove on the leading dish in the gap between the slide bar, and when the installation sleeve passes through flange and other pipe connection, and if the connection pipeline drops suddenly, the pipeline can be with leading dish and cut-off the butterfly valve through the connecting plate and form the widget through the slide bar and outside the radial size of cut-off sleeve, the size is not can be reached completely, and the size is blocked completely when the butterfly valve is cut-off completely, the size is cut-off to the radial outside has been reached, and the size is not has been reached completely.

Drawings

FIG. 1 is a schematic side view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the interaction structure of the valve rod and the valve clack of the utility model;

FIG. 3 is a schematic view of the fitting structure of the present utility model between the mounting sleeve and the sliding rod;

FIG. 4 is a schematic view of the interaction structure of the sliding rod and the front plate of the present utility model;

FIG. 5 is a schematic view of the fitting structure of the present utility model between the mounting sleeve and the sliding rod;

FIG. 6 is a schematic diagram showing the interaction structure of the first limiting block and the mounting plate;

FIG. 7 is a schematic diagram showing the interaction structure of the second limiting block and the contact plate of the present utility model;

FIG. 8 is a schematic diagram showing the interaction structure of the control lever and the limiting plate according to the present utility model.

In the figure: 1. a butterfly valve housing; 2. a flange plate; 3. a mounting block; 4. a valve stem; 5. a valve flap; 6. a control lever; 7. an emergency water stopping mechanism; 701. a mounting sleeve; 702. a connecting flange; 703. a limit groove; 704. a slide bar; 705. a front tray; 706. a limiting disc; 707. a flow channel; 708. a cutoff disc; 8. adjusting a limiting structure; 801. a first limiting block; 802. a second limiting block; 803. a mounting plate; 804. a threaded column; 805. a hand wheel; 806. a contact plate; 807. an anti-slip pad; 808. and a limiting plate.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, the utility model provides a three-eccentric butterfly valve with lugs, which comprises a butterfly valve shell 1 and an emergency water stopping mechanism 7, wherein the emergency water stopping mechanism 7 comprises a mounting sleeve 701, a connecting flange 702, a limit groove 703, a sliding rod 704, a front disc 705, a limit disc 706, a circulating groove 707 and a stop disc 708, the outer side surface of the butterfly valve shell 1 is fixedly connected with a flange disc 2, the top of the butterfly valve shell 1 is fixedly connected with a mounting block 3, the inner side surface of the mounting block 3 is rotationally linked with a valve rod 4, the outer side surface of the valve rod 4 is fixedly connected with a valve clack 5, the top surface of the valve rod 4 is fixedly connected with a control rod 6, the outer side surface of the butterfly valve shell 1 is provided with the emergency water stopping mechanism 7, the outer side surface of the valve rod 4 is provided with an adjusting limit structure 8, during the use of the butterfly valve shell 1 plays a role of protecting internal parts of the valve and providing connection and mounting support, the flange disc 2 is used for connecting the butterfly valve and a pipeline system, sealing and stability are ensured through bolt fastening, the mounting block 3 is used for connecting and supporting components of the valve rod 4, the valve rod 4 and the valve clack 6 are connected with the valve rod through rotating the control rod 6, and the valve clack 6 are controlled through rotation of the control rod 6.

Further, the emergency water stop mechanism 7 comprises a mounting sleeve 701, a connecting flange 702, a limit groove 703, a sliding rod 704, a front plate 705, a limit plate 706, a circulation groove 707 and a stop plate 708, wherein the outer side surface of the butterfly valve housing 1 is fixedly connected with the mounting sleeve 701, the outer side surface of the mounting sleeve 701 is fixedly connected with the connecting flange 702, the inner side surface of the mounting sleeve 701 is provided with the limit groove 703, the inner side surface of the limit groove 703 is slidingly connected with the sliding rod 704, one end of the sliding rod 704 is fixedly connected with the front plate 705, the outer side surface of the front plate 705 is fixedly connected with the limit plate 706, the outer side surface of the front plate 705 is provided with the circulation groove 707, the other end of the sliding rod 704 is fixedly connected with the stop plate 708, and in the use process, through the arrangement of the mounting sleeve 701, the connecting flange 702, the limit groove 703, the sliding rod 704, the front plate 705, the limit plate 706, the circulation groove 707 and the stop plate 708, the front disc 705 and the stop disc 708 are connected together through the sliding rod 704 to form a small part for emergency water stop, the part is connected with the mounting sleeve 701 and can move transversely on the mounting sleeve 701, the limiting groove 703 plays a role of limiting and sliding, the small part is prevented from sliding out of the mounting sleeve 701 by the limiting disc 706, when the mounting sleeve 701 is connected with other pipelines through the connecting flange 702, the connected pipelines can push the small part formed by connecting the front disc 705 and the stop disc 708 together through the sliding rod 704 into the mounting sleeve 701, the radial dimension of the rear part is larger because the radial dimension of the two ends of the mounting sleeve 701 is inconsistent, the small part cannot completely cover the inside of the mounting sleeve 701, liquid flowing through the butterfly valve after opening can enter from gaps between the sliding rods 704 and flow out of the circulating grooves 707 on the front disc 705, when the mounting sleeve 701 is connected with other pipelines through the connecting flange 702, if the connecting pipelines suddenly drop, the liquid can push out the small part formed by connecting the front disc 705 with the stop disc 708 through the sliding rod 704, the smaller the radial dimension of the mounting sleeve 701 is, the smaller part can completely shield the section of the mounting sleeve 701, and the stop disc 708 is not provided with the circulating groove 707, so that the butterfly valve can be prevented from being blocked, and the resource waste caused by the massive outflow of the liquid when the connecting pipelines suddenly drop can be prevented.

Further, the radial dimensions of the two ends of the mounting sleeve 701 are inconsistent, one end of the larger radius of the mounting sleeve 701 is fixedly connected with the butterfly valve housing 1, the limiting groove 703 is annularly distributed on the inner side surface of the mounting sleeve 701, the small part formed by connecting the front disc 705 and the stop disc 708 together through the sliding rod 704 can slide in the mounting sleeve 701, due to the inconsistent radial dimensions of the two ends, when the small part is close to the small end, the small part can shield the section of the mounting sleeve 701, and when the small part is close to the large end, the small part cannot completely shield the section of the mounting sleeve 701, so that liquid can flow out.

Further, the radial dimension of the limiting disc 706 is larger than the radial dimension of the smaller radius end of the mounting sleeve 701, the circulating groove 707 penetrates through the front disc 705, the limiting disc 706 is fixedly connected to the outer side surface of the stop disc 708, the front disc 705 and the stop disc 708 are connected together through the sliding rod 704 to form a small part for emergency water stop, the part is connected with the mounting sleeve 701 and can transversely move on the mounting sleeve 701, the limiting groove 703 plays a role in limiting and sliding, and the small part is prevented from sliding out of the mounting sleeve 701 and falling through the limiting disc 706.

Further, the adjusting and limiting structure 8 comprises a first limiting block 801, a second limiting block 802, a mounting plate 803, a thread column 804, a hand wheel 805, a contact plate 806, an anti-slip pad 807 and a limiting plate 808, wherein the first limiting block 801 is rotationally connected to the outer side surface of the valve rod 4, the second limiting block 802 is rotationally connected to the outer side surface of the valve rod 4, the mounting plate 803 is fixedly connected to the top of the mounting block 3, the thread column 804 is screwed to the inner side surface of the second limiting block 802, the hand wheel 805 is fixedly connected to the bottom of the thread column 804, the contact plate 806 is fixedly connected to the top of the thread column 804, the anti-slip pad 807 is fixedly connected to the inner side surface of the contact plate 806, the limiting plate 808 is fixedly connected to the bottom of the control rod 6, through the arrangement of the first limiting block 801, the second limiting block 802, the mounting plate 803, the thread column 804, the hand wheel 805, the contact plate 806, the anti-slip pad 807 and the limiting plate 808, the use method and principle of the first limiting block 801 and the second limiting block 802 are the same, only in order not to affect the different shapes, the first limiting block 801 can rotate on the valve rod 4, when the specified position is reached, the hand wheel 805 is rotated, the hand wheel 805 drives the threaded column 804 to rotate, because the threaded column 804 is in threaded connection with the first limiting block 801 to drive the threaded column 804 to move on the first limiting block 801, when the threaded column 804 is close to the mounting plate 803, the contact plate 806 and the anti-slip pad 807 can prop against the mounting plate 803, the contact plate 806 has a larger contact area and increases friction force through the anti-slip pad 807 to lock the first limiting block 801 to prevent rotation, the second limiting block 802 can form an included angle to limit the control rod 6 inside, when the control rod 6 wants to drive the valve rod to rotate, the limiting plate 808 at the bottom of the control rod 6 can be blocked by the first limiting block 801 and the second limiting block 802, therefore, the opening range of the butterfly valve can be limited, the valve can work in a safe operation range, and excessive opening or closing is prevented.

Further, the first stopper 801 and the second stopper 802 are U-shaped, the inner side surfaces of the first stopper 801 and the second stopper 802 are slidably connected with the outer side surface of the mounting plate 803, and the first stopper 801 and the second stopper 802 are clamped on the mounting plate 803 for fixing and connecting.

Further, the inner side surface of the first limiting block 801 is in threaded connection with a threaded column 804, the contact disc 806 is in sliding connection with the inner side surface of the second limiting block 802, the anti-slip pad 807 is made of rubber, the using method and principle of the first limiting block 801 and the second limiting block 802 are the same, only in order to not affect the appearance difference, the contact disc 806 is accommodated in the first limiting block 801 and the second limiting block 802 to reduce occupation, and the rubber has good friction force.

Working principle: the butterfly valve housing 1 plays a role of protecting internal parts of a valve and providing connection and installation support during use, the flange plate 2 is used for connecting the butterfly valve with a pipeline system, the butterfly valve is tightly combined with the pipeline through bolt fastening, tightness and stability are ensured, the installation block 3 is used for connecting and supporting the valve rod 4, the valve rod 4 is connected with a valve clack 5 and a part of a control rod 6, opening and closing actions of the valve clack 5 are controlled through rotating the control rod 6, the emergency water stopping mechanism 7 is used, the front plate 705 and the stop plate 708 are connected together through a sliding rod 704 to form a small part for emergency water stopping, the part is connected with the installation sleeve 701 and can transversely move on the installation sleeve 701, the limit groove 703 plays a role of limiting and sliding, the small part is prevented from sliding out of the installation sleeve 701 through the limit plate 706, when the mounting sleeve 701 is connected with other pipelines through the connecting flange 702, the connected pipelines push the small part formed by connecting the front disc 705 and the stop disc 708 through the sliding rods 704 into the mounting sleeve 701, the smaller part cannot completely cover the inside of the mounting sleeve 701 due to the inconsistent radial dimensions of the two ends of the mounting sleeve 701, the liquid flowing through the butterfly valve after opening can enter from the gaps between the sliding rods 704 and flow out of the circulating grooves 707 on the front disc 705, when the mounting sleeve 701 is connected with other pipelines through the connecting flange 702, if the connecting pipelines suddenly drop, the liquid can push the small part formed by connecting the front disc 705 and the stop disc 708 through the sliding rods 704 outwards, and the smaller the radial dimension of the mounting sleeve 701 outwards is, the small part can completely shield the section of the mounting sleeve 701, and the stop disc 708 is not provided with the circulation groove 707, so that the butterfly valve can be prevented from being blocked, a large amount of liquid flows out to cause resource waste when the connecting pipeline suddenly drops, the use method and principle of the first limiting block 801 and the second limiting block 802 are the same in the use process of the adjusting limiting structure 8, the first limiting block 801 can rotate on the valve rod 4 only for preventing the appearance difference from being influenced by each other, when the specified position is reached, the hand wheel 805 rotates the hand wheel 805, the hand wheel 805 drives the threaded column 804 to rotate, the threaded column 804 is driven by the threaded connection of the threaded column 804 and the first limiting block 801 to move on the first limiting block 801, when the threaded column 804 is close to the mounting disc 803, the contact disc 806 and the anti-slip pad 807 can prop against the mounting disc 803, the contact disc 806 has a large contact area and increases friction force through the anti-slip pad 807, the first limiting block 801 is locked to prevent rotation, the second limiting block 802 can form an included angle to limit the control rod 6 inside, when the control rod 6 wants to drive the valve rod to rotate, the limiting plate 808 at the bottom of the control rod 6 can be blocked by the first limiting block 801 and the second limiting block 802, the eccentric opening range can be prevented from being excessively opened, the butterfly valve can be opened or the eccentric opening range can be excessively ensured, and the butterfly valve can be safely opened or opened.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a three eccentric butterfly valve of lug, includes butterfly valve shell (1) and urgent stagnant water mechanism (7), and wherein urgent stagnant water mechanism (7) are including installation sleeve (701), flange (702), spacing groove (703), slide bar (704), leading dish (705), spacing dish (706), circulation groove (707) and stop dish (708), its characterized in that: the butterfly valve is characterized in that a flange plate (2) is fixedly connected to the outer side surface of the butterfly valve shell (1), a mounting block (3) is fixedly connected to the top of the butterfly valve shell (1), a valve rod (4) is rotatably connected to the inner side surface of the mounting block (3), a valve clack (5) is fixedly connected to the outer side surface of the valve rod (4), a control rod (6) is fixedly connected to the top surface of the valve rod (4), an emergency water stopping mechanism (7) is arranged on the outer side surface of the butterfly valve shell (1), and an adjusting limiting structure (8) is arranged on the outer side surface of the valve rod (4).

2. A lug triple offset butterfly valve according to claim 1 wherein: the emergency water stop mechanism (7) comprises a mounting sleeve (701), a connecting flange (702), a limiting groove (703), a sliding rod (704), a front disc (705), a limiting disc (706), a circulating groove (707) and a stop disc (708), wherein the mounting sleeve (701) is fixedly connected with the outer side surface of the butterfly valve shell (1), the connecting flange (702) is fixedly connected with the outer side surface of the mounting sleeve (701), the limiting groove (703) is formed in the inner side surface of the mounting sleeve (701), the sliding rod (704) is slidingly connected with the inner side surface of the limiting groove (703), one end of the sliding rod (704) is fixedly connected with the front disc (705), the circulating groove (707) is formed in the outer side surface of the front disc (705), and the stop disc (708) is fixedly connected with the other end of the sliding rod (704).

3. A lug triple offset butterfly valve according to claim 2 wherein: the two ends of the mounting sleeve (701) are inconsistent in radius size, one end with a larger radius of the mounting sleeve (701) is fixedly connected with the butterfly valve shell (1), and the limiting grooves (703) are annularly distributed on the inner side surface of the mounting sleeve (701).

4. A lug triple offset butterfly valve according to claim 2 wherein: the radial dimension of the limiting disc (706) is larger than that of the smaller end of the radius of the mounting sleeve (701), the circulating groove (707) penetrates through the front disc (705), and the limiting disc (706) is fixedly connected to the outer side surface of the stop disc (708).

5. A lug triple offset butterfly valve according to claim 1 wherein: adjust limit structure (8) including first stopper (801), second stopper (802), mounting disc (803), screw thread post (804), hand wheel (805), contact disc (806), slipmat (807) and limiting plate (808), the outside surface rotation of valve rod (4) is connected with first stopper (801), the outside surface rotation of valve rod (4) is connected with second stopper (802), the top fixedly connected with mounting disc (803) of installation piece (3), the inboard surface threaded connection of second stopper (802) has screw thread post (804), the bottom fixedly connected with hand wheel (805) of screw thread post (804), the top fixedly connected with contact disc (806) of screw thread post (804), the inboard surface fixedly connected with slipmat (807) of contact disc (806), the bottom fixedly connected with limiting plate (808) of control rod (6).

6. The lug triple offset butterfly valve of claim 5 wherein: the first limiting block (801) and the second limiting block (802) are U-shaped, and the inner side surfaces of the first limiting block (801) and the second limiting block (802) are in sliding connection with the outer side surface of the mounting plate (803).

7. The lug triple offset butterfly valve of claim 5 wherein: the inner side surface of the first limiting block (801) is in threaded connection with a threaded column (804), the contact disc (806) is in sliding connection with the inner side surface of the second limiting block (802), and the anti-slip pad (807) is made of rubber.