CN218326241U - A High Efficiency Sealing Butterfly Valve - Google Patents

Abstract

The utility model discloses a high-efficiency sealing butterfly valve, which belongs to the technical field of butterfly valves and comprises a main body of the butterfly valve and a pipeline. Both ends of the main body of the butterfly valve are fixed with a first flange, and the opposite side of the pipeline is fixed with a second flange. Flange, the opposite sides of the first flange and the second flange are movably connected. The utility model facilitates the connection of the first flange and the second flange through the cooperation of the installation holes, bolts and nuts, and at the same time ensures that the first flange The first flange and the second flange are aligned to prevent the dislocation between the butterfly valve and the pipeline and affect the sealing performance of the butterfly valve. Tighten the block, and use the block to gradually tighten the first flange and the second flange to prevent the first flange and the second flange from shaking under the action of external force, resulting in shaking between the main body of the butterfly valve and the pipeline. A gap is formed between them, which solves the problem of poor sealing effect of traditional butterfly valves.

Description

A High Efficiency Sealing Butterfly Valve

technical field

The utility model relates to the technical field of butterfly valves, in particular to an efficient sealing butterfly valve.

Background technique

Butterfly valve, also known as flap valve, is a regulating valve with simple structure, which can be used for switching control of low-pressure pipeline medium. A kind of valve, the valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays the role of cutting and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment.

The butterfly valve is a control component connected in the pipeline system, which can adjust the flow rate of liquid and gas in the pipeline, so it needs to withstand a large pressure. For the airtightness of the pipeline system, it is necessary to ensure the sealing of the connection of the butterfly valve to prevent Leakage, the traditional butterfly valve is connected by screws to install it, due to the fluidity of gas and liquid, it is easy to leak from the gap in the connection to the outside, affecting the sealing of the pipeline system.

Utility model content

The purpose of this utility model is to provide a butterfly valve with high efficiency sealing. The butterfly valve and the pipeline are fastened in various ways to make them closely fit and prevent a large gap between them, so as to solve the problems raised in the above background technology .

In order to achieve the above object, the utility model provides the following technical solutions: a butterfly valve with high efficiency sealing, including a butterfly valve body and a pipeline, the two ends of the butterfly valve body are fixed with a first flange, and the opposite side of the pipeline is fixed with a The second flange, the opposite sides of the first flange and the second flange are flexibly connected, and mounting holes are opened around the first flange and the second flange, and the inner cavity of the mounting hole is movable Bolts are connected, the surface of the bolt is threaded with nuts, the surfaces of the first flange and the second flange are clamped with clamping blocks, the outside of the clamping blocks is movably connected with a tightening belt, and the tightening Fastening components are provided on opposite sides of the belt.

Preferably, the fastening assembly includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are respectively fixed on the opposite side of the tightening belt, and the two front sides of the first mounting plate Both sides are embedded with a threaded sleeve, the inner cavity of the threaded sleeve is threadedly connected with a threaded rod, the front of the threaded rod is fixed with a turntable, and the back of the threaded rod rotates on the front of the second mounting plate through a bearing.

Preferably, support rods are fixed on both sides of the back of the first mounting plate, the surface of the support rod penetrates the second mounting plate and extends backward, the surface of the support rod is fixed with a limit block, and the limit The back of the block articulates with the front of the second mounting plate.

Preferably, both sides of the surface of the clamping block are provided with chute, the inner chamber of the chute is slidably connected with a slide bar, and the slide bar is fixed to the inner cavity of the tightening belt.

Preferably, grooves are formed on the surfaces of the first flange and the second flange, and the clamping block is located in the inner cavity of the groove.

Preferably, the opposite sides of the first flange and the second flange are cushioned with a sealing ring, and the surface of the sealing ring is provided with circular holes for bolts.

Preferably, both sides of the slide bar are fixed with fixed blocks, and the fixed blocks are movably connected with the surface of the clamping block.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model facilitates the connection of the first flange and the second flange through the cooperation of the installation holes, bolts and nuts, and at the same time ensures the alignment of the first flange and the second flange, preventing the butterfly valve from being misaligned with the pipeline and affecting the butterfly valve. At the same time, the clamping block is used to clamp the first flange and the second flange, and then through the cooperation of the fastening components, the clamping block is tightened, and the clamping block is used to gradually tighten the first flange and the second flange. The flange is tightened to prevent the first flange and the second flange from shaking under the action of external force, causing shaking between the main body of the butterfly valve and the pipeline, causing a gap between them, and solving the problem of poor sealing effect of the traditional butterfly valve.

2. The utility model facilitates the support of the first mounting plate and the second mounting plate through the cooperation of the support rod and the limit block, and when the threaded rod closes the first mounting plate and the second mounting plate, the first mounting plate Keep stable between the first mounting plate and the second mounting plate to prevent the tops of the first mounting plate and the second mounting plate from shaking and affect the tension of the tightening belt.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the partial three-dimensional structure schematic diagram of the utility model;

Fig. 3 is a three-dimensional structural schematic diagram of the tightening belt of the present invention;

Fig. 4 is a three-dimensional structural schematic diagram of the sealing ring of the present invention.

Labels in the figure: 1. Main body of butterfly valve; 2. Pipeline; 3. First flange; 4. Second flange; 5. Mounting hole; 6. Bolt; 7. Nut; 8. Block; 9. Tightening belt 10, fastening assembly; 101, the first mounting plate; 102, the second mounting plate; 103, threaded sleeve; 104, threaded rod; 11, support rod; 12, limit block; 13, chute; 14, sliding Bar; 15, groove; 16, sealing ring; 17, fixed block.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The utility model provides a high-efficiency sealing butterfly valve as shown in Figs. There is a second flange 4, the opposite sides of the first flange 3 and the second flange 4 are flexibly connected, and the first flange 3 and the second flange 4 are provided with mounting holes 5 around the surroundings, and the inside of the mounting holes 5 The cavity is movably connected with a bolt 6, the surface of the bolt 6 is threadedly connected with a nut 7, the surfaces of the first flange 3 and the second flange 4 are clamped with a block 8, and the outer side of the block 8 is movably connected with a tightening band 9, The opposite side of the tightening belt 9 is provided with a fastening assembly 10, through the cooperation of the installation hole 5, the bolt 6 and the nut 7, it is convenient to connect the first flange 3 and the second flange 4, and at the same time ensure that the first flange 3 and the second flange 4 are aligned to prevent the butterfly valve from misalignment with the pipeline 2 and affect the sealing performance of the butterfly valve. Cooperate, tighten the block 8, and use the block 8 to gradually tighten the first flange 3 and the second flange 4 to prevent the first flange 3 and the second flange 4 from shaking under the action of external force , resulting in shaking between the butterfly valve main body 1 and the pipeline 2, causing a gap between them, which solves the problem of poor sealing effect of the traditional butterfly valve.

The fastening assembly 10 includes a first mounting plate 101 and a second mounting plate 102, the first mounting plate 101 and the second mounting plate 102 are respectively fixed on the opposite side of the tightening belt 9, and both sides of the front of the first mounting plate 101 are Embedded with a threaded sleeve 103, the inner cavity of the threaded sleeve 103 is threadedly connected with a threaded rod 104, the front of the threaded rod 104 is fixed with a turntable, the back of the threaded rod 104 rotates on the front of the second mounting plate 102 through a bearing, and passes through the first installation The cooperation of the plate 101, the second mounting plate 102, the threaded sleeve 103, the threaded rod 104 and the turntable is convenient for closing the tightening belt 9 so that the tightening belt 9 tightens the clamping block 8 and facilitates the utilization of the clamping block 8 for the first The first flange 3 and the second flange 4 are clamped and limited to ensure the tightness of the butterfly valve.

Both sides of the back of the first mounting plate 101 are fixed with support rods 11, the surface of the support rods 11 runs through the second mounting plate 102 and extends backwards, the surface of the support rods 11 is fixed with a limit block 12, the back of the limit block 12 and The front of the second mounting plate 102 is movably connected, through the cooperation of the support rod 11 and the stop block 12, it is convenient to support the first mounting plate 101 and the second mounting plate 102, and the threaded rod 104 is convenient for the first mounting plate 101 and the second mounting plate 101. When the two mounting plates 102 are closed, keep stable between the first mounting plate 101 and the second mounting plate 102, prevent the tops of the first mounting plate 101 and the second mounting plate 102 from shaking, and affect the tension of the tightening belt 9 .

Both sides of the surface of the block 8 are provided with chute 13, the inner chamber of the chute 13 is slidably connected with a slide bar 14, and the slide bar 14 is fixed on the inner cavity of the tightening belt 9, through the cooperation of the chute 13 and the slide bar 14 , it is convenient to limit the clamping block 8, prevent the misalignment between the tightening belt 9 and the clamping block 8, so as to prevent the tightening belt 9 from slipping off from the surface of the clamping block 8, and the clamping block 8 cannot be tightened.

The surface of the first flange 3 and the second flange 4 is provided with a groove 15, and the clamping block 8 is located in the inner cavity of the groove 15. Through the cooperation of the groove 15, it is convenient to limit the clamping block 8 and prevent the clamping block 8 Sliding on the surfaces of the first flange 3 and the second flange 4 facilitates uniform stress on the first flange 3 and the second flange 4 by using the clamping block 8 and avoids local gaps.

The opposite side of the first flange 3 and the second flange 4 is provided with a sealing ring 16, and the surface of the sealing ring 16 is provided with a round hole for use with the bolt 6. Through the cooperation of the sealing ring 16, it is convenient to install the first flange. 3 and the second flange 4 to fill the gap to prevent the first flange 3 and the second flange 4 on the opposite side of the surface is not smooth, the formation of small gaps, resulting in leakage.

Both sides of slide bar 14 are all fixed with fixed block 17, and fixed block 17 is movably connected with the surface of block 8, by the cooperation of fixed block 17, block 8 is conveniently limited, prevents block 8 from sliding bar 14. The slippage of the surface can make the clamping block 8 adjust to a certain range on the slide bar 14, and assist the sliding block to slide simultaneously.

In specific use, the user places the main body of the butterfly valve 1 between the pipes 2, makes the first flange 3 and the second flange 4 close, and at the same time uses the bolt 6 to penetrate the installation hole 5, and then tightens the nut 7 on the bolt 6, Position the first flange 3 and the second flange 4, and then put the tightening belt 9 on the surface of the butterfly valve, so that the clamping blocks 8 are sequentially snapped into the groove 15, and then turn the turntable, and at the same time, the turntable drives the threaded rod 104 Rotate, then the threaded rod 104 moves in the inner cavity of the threaded sleeve 103, so that the first mounting plate 101 and the second mounting plate 102 are close to each other, then the tightening band 9 is tightened, and the tightening band 9 is tightened to the block 8 at the same time. Tighten it so that the block 8 squeezes the first flange 3 and the second flange 4 to ensure that the first flange 3 and the second flange 4 fit each other, squeeze the sealing ring 16, and avoid the first flange 3 and the second flange 4, and then the nut 7 is rotated again to fasten the first flange 3 and the second flange 4.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A high-efficiency sealed butterfly valve, comprising a butterfly valve body (1) and a pipeline (2), characterized in that: both ends of the butterfly valve body (1) are fixed with a first flange (3), and the pipeline ( 2) A second flange (4) is fixed on the opposite side, and the opposite side of the first flange (3) and the second flange (4) are flexibly connected, and the first flange (3) and Mounting holes (5) are provided around the second flange (4), and bolts (6) are movably connected to the inner cavity of the mounting holes (5), and nuts (7) are threaded on the surface of the bolts (6). ), the surface of the first flange (3) and the second flange (4) is clamped with a clamping block (8), and the outer side of the clamping block (8) is movably connected with a tightening band (9), so A fastening component (10) is provided on the opposite side of the tightening belt (9). 2. A high-efficiency sealing butterfly valve according to claim 1, characterized in that: the fastening assembly (10) includes a first mounting plate (101) and a second mounting plate (102), the first mounting plate The plate (101) and the second mounting plate (102) are respectively fixed on the opposite side of the tightening belt (9), and both sides of the front of the first mounting plate (101) are embedded with threaded sleeves (103), so The inner cavity of the threaded sleeve (103) is threadedly connected with a threaded rod (104), the front of the threaded rod (104) is fixed with a turntable, and the back side of the threaded rod (104) rotates on the second mounting plate (102) through a bearing. ) on the front. 3. A butterfly valve with high efficiency sealing according to claim 2, characterized in that: both sides of the back of the first mounting plate (101) are fixed with support rods (11), and the support rods (11) The surface runs through the second mounting plate (102) and extends backward, the surface of the support rod (11) is fixed with a limit block (12), and the back surface of the limit block (12) is connected to the second mounting plate (102) Positive activity connection. 4. A high-efficiency sealing butterfly valve according to claim 1, characterized in that: both sides of the surface of the block (8) are provided with chute (13), and the inner cavity of the chute (13) A slide bar (14) is slidably connected, and the slide bar (14) is fixed in the inner cavity of the tightening belt (9). 5. A high-efficiency sealing butterfly valve according to claim 1, characterized in that grooves (15) are opened on the surfaces of the first flange (3) and the second flange (4), and the snap The block (8) is located in the cavity of the groove (15). 6. A high-efficiency sealing butterfly valve according to claim 1, characterized in that a sealing ring (16) is provided on the opposite side of the first flange (3) and the second flange (4), The surface of the sealing ring (16) is provided with round holes for use with the bolts (6). 7. A butterfly valve with high efficiency sealing according to claim 4, characterized in that: fixed blocks (17) are fixed on both sides of the slide bar (14), and the fixed blocks (17) and the clamping blocks ( 8) Surface active connections.

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